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| author | Jinke Han <jinkehan@didiglobal.com> | 2026-09-08 15:37:42 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-09-17 09:48:42 +0200 |
| commit | a5f7a5bb3b7f28ba7e4fa246775b29a0e5537255 (patch) | |
| tree | 73fef824f9a846cf935869d0dbc5070ef6e2f741 /arch/arm/mach-omap2 | |
| download | linux-stable-a5f7a5bb3b7f28ba7e4fa246775b29a0e5537255.tar.gz linux-stable-a5f7a5bb3b7f28ba7e4fa246775b29a0e5537255.zip | |
x86/kprobes: Fix crash when probing CS CALL instructionsgrafted
When using eBPF to probe CS CALL instructions within a function,
a crash can be triggered.
The eBPF tool probes offset 257 of the __hrtimer_run_queues()
function:
<__hrtimer_run_queues+249>: nopl 0x0(%rax,%rax,1)
<__hrtimer_run_queues+254>: mov %r14,%rdi
<__hrtimer_run_queues+257>: cs call <__x86_indirect_thunk_r12>
<__hrtimer_run_queues+263>: mov %eax,%r12d
<__hrtimer_run_queues+266>: xchg %ax,%ax
<__hrtimer_run_queues+268>: mov %r13,%rdi
Which triggers this crash:
BUG: unable to handle page fault for address: 00000000000f41c9
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: 0002 [#1] SMP NOPTI
CPU: 1 PID: 0 Comm: swapper/1 Kdump: loaded Tainted: P
RIP: 0010:__hrtimer_run_queues+0x106/0x230
Note that __hrtimer_run_queues+0x106 is __hrtimer_run_queues+262, which is
at the 6th byte of the above CS CALL instruction. Since the CS CALL
instruction occupies 6 bytes, the exception occurred in the middle of that
call instruction.
The root cause is that when using eBPF tools to probe in the middle of a
function, a kprobe with INT3 is used as the underlying implementation.
During single-step emulation of the original CALL instruction,
int3_emulate_call() assumes that the probed CALL instruction is 5 bytes
long. However, the actual CS-prefixed CALL instruction occupies 6 bytes,
so it constructs an incorrect exception return address. When the CPU
returns from the kprobe handler, the next instruction to be executed is at
the address of the last byte of that CS CALL instruction. Coincidentally,
starting from that address, the CPU fetches and decodes a completely
different instruction, which ultimately triggers a kernel crash.
Fix the issue by using the actual instruction length obtained from
the instruction decoder when constructing the exception return
address, rather than relying on the hardcoded CALL_INSN_SIZE macro.
[ mingo: Refined the changelog ]
Fixes: 6256e668b7af ("x86/kprobes: Use int3 instead of debug trap for single-step")
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Jinke Han <jinkehan@didiglobal.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20260908073742.GA10517@didi-ThinkCentre-M920t-N000
Diffstat (limited to 'arch/arm/mach-omap2')
206 files changed, 51642 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/.gitignore b/arch/arm/mach-omap2/.gitignore new file mode 100644 index 000000000..dc7be7556 --- /dev/null +++ b/arch/arm/mach-omap2/.gitignore @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +pm-asm-offsets.h diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig new file mode 100644 index 000000000..79f8afe3a --- /dev/null +++ b/arch/arm/mach-omap2/Kconfig @@ -0,0 +1,279 @@ +# SPDX-License-Identifier: GPL-2.0-only +menu "TI OMAP/AM/DM/DRA Family" + depends on ARCH_MULTI_V6 || ARCH_MULTI_V7 + +config OMAP_HWMOD + bool + +config ARCH_OMAP2 + bool "TI OMAP2" + depends on ARCH_MULTI_V6 + depends on !SMP + select ARCH_OMAP2PLUS + select CPU_ARM1136R0 + select OMAP_HWMOD + select SOC_HAS_OMAP2_SDRC + +config ARCH_OMAP3 + bool "TI OMAP3" + depends on ARCH_MULTI_V7 + select ARCH_OMAP2PLUS + select ARM_CPU_SUSPEND + select OMAP_HWMOD + select OMAP_INTERCONNECT + select PM_OPP + select SOC_HAS_OMAP2_SDRC + select ARM_ERRATA_430973 + +config ARCH_OMAP4 + bool "TI OMAP4" + depends on ARCH_MULTI_V7 + select ARCH_OMAP2PLUS + select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP + select ARM_CPU_SUSPEND + select ARM_ERRATA_720789 + select ARM_GIC + select HAVE_ARM_SCU if SMP + select HAVE_ARM_TWD if SMP + select OMAP_INTERCONNECT + select OMAP_INTERCONNECT_BARRIER + select PL310_ERRATA_588369 if CACHE_L2X0 + select PL310_ERRATA_727915 if CACHE_L2X0 + select PM_OPP + select PM if CPU_IDLE + select ARM_ERRATA_754322 + select ARM_ERRATA_775420 + +config SOC_OMAP5 + bool "TI OMAP5" + depends on ARCH_MULTI_V7 + select ARCH_OMAP2PLUS + select ARM_CPU_SUSPEND + select ARM_GIC + select HAVE_ARM_SCU if SMP + select HAVE_ARM_ARCH_TIMER + select ARM_ERRATA_798181 if SMP + select OMAP_INTERCONNECT + select OMAP_INTERCONNECT_BARRIER + select PM_OPP + select ZONE_DMA if ARM_LPAE + +config SOC_AM33XX + bool "TI AM33XX" + depends on ARCH_MULTI_V7 + select ARCH_OMAP2PLUS + select ARM_CPU_SUSPEND + +config SOC_AM43XX + bool "TI AM43x" + depends on ARCH_MULTI_V7 + select ARCH_OMAP2PLUS + select ARM_GIC + select MACH_OMAP_GENERIC + select HAVE_ARM_SCU + select GENERIC_CLOCKEVENTS_BROADCAST + select HAVE_ARM_TWD + select ARM_ERRATA_754322 + select ARM_ERRATA_775420 + select OMAP_INTERCONNECT + select ARM_CPU_SUSPEND + +config SOC_DRA7XX + bool "TI DRA7XX" + depends on ARCH_MULTI_V7 + select ARCH_OMAP2PLUS + select ARM_CPU_SUSPEND + select ARM_GIC + select HAVE_ARM_SCU if SMP + select HAVE_ARM_ARCH_TIMER + select IRQ_CROSSBAR + select ARM_ERRATA_798181 if SMP + select OMAP_INTERCONNECT + select OMAP_INTERCONNECT_BARRIER + select PM_OPP + select ZONE_DMA if ARM_LPAE + select PINCTRL_TI_IODELAY if OF && PINCTRL + +config ARCH_OMAP2PLUS + bool + select ARCH_HAS_BANDGAP + select ARCH_HAS_RESET_CONTROLLER + select ARCH_OMAP + select CLKSRC_MMIO + select GENERIC_IRQ_CHIP + select GPIOLIB + select MACH_OMAP_GENERIC + select MEMORY + select MFD_SYSCON + select OMAP_DM_SYSTIMER + select OMAP_DM_TIMER + select OMAP_GPMC + select PINCTRL + select PM + select PM_GENERIC_DOMAINS + select PM_GENERIC_DOMAINS_OF + select RESET_CONTROLLER + select SOC_BUS + select TI_SYSC + select OMAP_IRQCHIP + select CLKSRC_TI_32K + help + Systems based on OMAP2, OMAP3, OMAP4 or OMAP5 + +config OMAP_INTERCONNECT_BARRIER + bool + select ARM_HEAVY_MB + +config ARCH_OMAP + bool + +if ARCH_OMAP2PLUS + +menu "TI OMAP2/3/4 Specific Features" + +config ARCH_OMAP2PLUS_TYPICAL + bool "Typical OMAP configuration" + default y + select AEABI + select HIGHMEM + select I2C + select I2C_OMAP + select MENELAUS if ARCH_OMAP2 + select NEON if CPU_V7 + select REGULATOR + select REGULATOR_FIXED_VOLTAGE + select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4 + select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4 + select VFP + help + Compile a kernel suitable for booting most boards + +config SOC_HAS_OMAP2_SDRC + bool "OMAP2 SDRAM Controller support" + +config SOC_HAS_REALTIME_COUNTER + bool "Real time free running counter" + depends on SOC_OMAP5 || SOC_DRA7XX + default y + +config POWER_AVS_OMAP + bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2" + depends on (ARCH_OMAP3 || ARCH_OMAP4) && PM + select POWER_SUPPLY + help + Say Y to enable AVS(Adaptive Voltage Scaling) + support on OMAP containing the version 1 or + version 2 of the SmartReflex IP. + V1 is the 65nm version used in OMAP3430. + V2 is the update for the 45nm version of the IP used in OMAP3630 + and OMAP4430 + + Please note, that by default SmartReflex is only + initialized and not enabled. To enable the automatic voltage + compensation for vdd mpu and vdd core from user space, + user must write 1 to + /debug/smartreflex/sr_<X>/autocomp, + where X is mpu_iva or core for OMAP3. + Optionally autocompensation can be enabled in the kernel + by default during system init via the enable_on_init flag + which an be passed as platform data to the smartreflex driver. + +config POWER_AVS_OMAP_CLASS3 + bool "Class 3 mode of Smartreflex Implementation" + depends on POWER_AVS_OMAP && TWL4030_CORE + help + Say Y to enable Class 3 implementation of Smartreflex + + Class 3 implementation of Smartreflex employs continuous hardware + voltage calibration. + +config OMAP3_L2_AUX_SECURE_SAVE_RESTORE + bool "OMAP3 HS/EMU save and restore for L2 AUX control register" + depends on ARCH_OMAP3 && PM + help + Without this option, L2 Auxiliary control register contents are + lost during off-mode entry on HS/EMU devices. This feature + requires support from PPA / boot-loader in HS/EMU devices, which + currently does not exist by default. + +config OMAP3_L2_AUX_SECURE_SERVICE_SET_ID + int "Service ID for the support routine to set L2 AUX control" + depends on OMAP3_L2_AUX_SECURE_SAVE_RESTORE + default 43 + help + PPA routine service ID for setting L2 auxiliary control register. + +comment "OMAP Core Type" + depends on ARCH_OMAP2 + +config SOC_OMAP2420 + bool "OMAP2420 support (DEPRECATED)" + depends on ARCH_OMAP2 + default y + select OMAP_DM_SYSTIMER + select OMAP_DM_TIMER + select SOC_HAS_OMAP2_SDRC + help + This SoC is scheduled for removal in early 2027, + since it uses the ARM1136r0 CPU revision. + +config SOC_OMAP2430 + bool "OMAP2430 support (DEPRECATED)" + depends on ARCH_OMAP2 + default y + select SOC_HAS_OMAP2_SDRC + help + This SoC is scheduled for removal in early 2027, + since it uses the ARM1136r0 CPU revision. + +config SOC_OMAP3430 + bool "OMAP3430 support" + depends on ARCH_OMAP3 + default y + select SOC_HAS_OMAP2_SDRC + +config SOC_TI81XX + bool "TI81XX support" + depends on ARCH_OMAP3 + default y + +comment "OMAP Legacy Platform Data Board Type" + depends on ARCH_OMAP2PLUS + +config MACH_OMAP_GENERIC + bool + +config MACH_OMAP2_TUSB6010 + bool + depends on ARCH_OMAP2 && SOC_OMAP2420 + default y if MACH_NOKIA_N8X0 + +config MACH_NOKIA_N810 + bool + +config MACH_NOKIA_N810_WIMAX + bool + +config MACH_NOKIA_N8X0 + bool "Nokia N800/N810 (DEPRECATED)" + depends on SOC_OMAP2420 + default y + select MACH_NOKIA_N810 + select MACH_NOKIA_N810_WIMAX + help + This machine is scheduled for removal in early 2027, + since it uses the ARM1136r0 CPU revision. + +endmenu + +endif + +config OMAP5_ERRATA_801819 + bool "Errata 801819: An eviction from L1 data cache might stall indefinitely" + depends on SOC_OMAP5 || SOC_DRA7XX + help + A livelock can occur in the L2 cache arbitration that might prevent + a snoop from completing. Under certain conditions this can cause the + system to deadlock. + +endmenu diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile new file mode 100644 index 000000000..daf21127c --- /dev/null +++ b/arch/arm/mach-omap2/Makefile @@ -0,0 +1,228 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the linux kernel. +# + +# Common support +obj-y := id.o io.o control.o devices.o fb.o pm.o \ + common.o dma.o omap-headsmp.o sram.o + +hwmod-common = omap_hwmod.o \ + omap_hwmod_common_data.o \ + omap_hwmod_common_ipblock_data.o \ + omap_device.o display.o hdq1w.o \ + i2c.o wd_timer.o +clock-common = clock.o +secure-common = omap-smc.o omap-secure.o + +obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) +obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common) +obj-$(CONFIG_ARCH_OMAP4) += $(secure-common) +obj-$(CONFIG_SOC_AM33XX) += $(secure-common) +obj-$(CONFIG_SOC_OMAP5) += $(secure-common) +obj-$(CONFIG_SOC_AM43XX) += $(secure-common) +obj-$(CONFIG_SOC_DRA7XX) += $(secure-common) + +ifneq ($(CONFIG_SND_SOC_OMAP_MCBSP),) +obj-$(CONFIG_OMAP_HWMOD) += mcbsp.o +endif + +obj-$(CONFIG_TWL4030_CORE) += omap_twl.o + +ifneq ($(CONFIG_MFD_CPCAP),) +obj-y += pmic-cpcap.o +endif + +obj-$(CONFIG_SOC_HAS_OMAP2_SDRC) += sdrc.o + +# SMP support ONLY available for OMAP4 + +smp-$(CONFIG_SMP) += omap-smp.o +smp-$(CONFIG_HOTPLUG_CPU) += omap-hotplug.o +omap-4-5-common = omap4-common.o omap-wakeupgen.o +obj-$(CONFIG_ARCH_OMAP4) += $(omap-4-5-common) $(smp-y) sleep44xx.o +obj-$(CONFIG_SOC_OMAP5) += $(omap-4-5-common) $(smp-y) sleep44xx.o +obj-$(CONFIG_SOC_AM43XX) += $(omap-4-5-common) +obj-$(CONFIG_SOC_DRA7XX) += $(omap-4-5-common) $(smp-y) sleep44xx.o + +omap5-dra7-common-$(CONFIG_SOC_HAS_REALTIME_COUNTER) = timer.o +obj-$(CONFIG_SOC_OMAP5) += $(omap5-dra7-common-y) +obj-$(CONFIG_SOC_DRA7XX) += $(omap5-dra7-common-y) + +# Functions loaded to SRAM +obj-$(CONFIG_SOC_OMAP2420) += sram242x.o +obj-$(CONFIG_SOC_OMAP2430) += sram243x.o + +# Restart code (OMAP4/5 currently in omap4-common.c) +obj-$(CONFIG_SOC_OMAP2420) += omap2-restart.o +obj-$(CONFIG_SOC_OMAP2430) += omap2-restart.o +obj-$(CONFIG_SOC_TI81XX) += ti81xx-restart.o +obj-$(CONFIG_SOC_AM33XX) += am33xx-restart.o +obj-$(CONFIG_SOC_AM43XX) += omap4-restart.o +obj-$(CONFIG_ARCH_OMAP3) += omap3-restart.o +obj-$(CONFIG_ARCH_OMAP4) += omap4-restart.o +obj-$(CONFIG_SOC_OMAP5) += omap4-restart.o +obj-$(CONFIG_SOC_DRA7XX) += omap4-restart.o + +# SMS/SDRC +obj-$(CONFIG_ARCH_OMAP2) += sdrc2xxx.o +# obj-$(CONFIG_ARCH_OMAP3) += sdrc3xxx.o + +# OPP table initialization +ifeq ($(CONFIG_PM_OPP),y) +obj-$(CONFIG_ARCH_OMAP3) += opp3xxx_data.o +obj-$(CONFIG_ARCH_OMAP4) += opp4xxx_data.o +endif + +# Power Management +omap-4-5-pm-common = omap-mpuss-lowpower.o +obj-$(CONFIG_ARCH_OMAP4) += $(omap-4-5-pm-common) +obj-$(CONFIG_SOC_OMAP5) += $(omap-4-5-pm-common) + +ifeq ($(CONFIG_PM),y) +obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o +obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o +omap-4-5-pm-common += pm44xx.o +obj-$(CONFIG_ARCH_OMAP4) += $(omap-4-5-pm-common) +obj-$(CONFIG_SOC_OMAP5) += $(omap-4-5-pm-common) +obj-$(CONFIG_SOC_DRA7XX) += $(omap-4-5-pm-common) +obj-$(CONFIG_SOC_AM33XX) += pm33xx-core.o sleep33xx.o +obj-$(CONFIG_SOC_AM43XX) += pm33xx-core.o sleep43xx.o +obj-$(CONFIG_PM_DEBUG) += pm-debug.o + +obj-$(CONFIG_POWER_AVS_OMAP) += sr_device.o +obj-$(CONFIG_POWER_AVS_OMAP_CLASS3) += smartreflex-class3.o + +endif + +ifeq ($(CONFIG_CPU_IDLE),y) +obj-$(CONFIG_ARCH_OMAP3) += cpuidle34xx.o +omap-4-5-idle-common = cpuidle44xx.o +obj-$(CONFIG_ARCH_OMAP4) += $(omap-4-5-idle-common) +obj-$(CONFIG_SOC_OMAP5) += $(omap-4-5-idle-common) +obj-$(CONFIG_SOC_DRA7XX) += $(omap-4-5-idle-common) +endif + +# PRCM +obj-y += prm_common.o cm_common.o +obj-$(CONFIG_ARCH_OMAP2) += prm2xxx_3xxx.o prm2xxx.o cm2xxx.o +obj-$(CONFIG_ARCH_OMAP3) += prm2xxx_3xxx.o prm3xxx.o cm3xxx.o +obj-$(CONFIG_ARCH_OMAP3) += vc3xxx_data.o vp3xxx_data.o +omap-prcm-4-5-common = cminst44xx.o prm44xx.o \ + prcm_mpu44xx.o prminst44xx.o \ + vc44xx_data.o vp44xx_data.o +obj-$(CONFIG_ARCH_OMAP4) += $(omap-prcm-4-5-common) +obj-$(CONFIG_SOC_OMAP5) += $(omap-prcm-4-5-common) +obj-$(CONFIG_SOC_DRA7XX) += $(omap-prcm-4-5-common) +am33xx-43xx-prcm-common += prm33xx.o cm33xx.o +obj-$(CONFIG_SOC_TI81XX) += $(am33xx-43xx-prcm-common) +obj-$(CONFIG_SOC_AM33XX) += $(am33xx-43xx-prcm-common) +obj-$(CONFIG_SOC_AM43XX) += $(omap-prcm-4-5-common) \ + $(am33xx-43xx-prcm-common) + +# OMAP voltage domains +voltagedomain-common := voltage.o vc.o vp.o +obj-$(CONFIG_ARCH_OMAP2) += $(voltagedomain-common) +obj-$(CONFIG_ARCH_OMAP2) += voltagedomains2xxx_data.o +obj-$(CONFIG_ARCH_OMAP3) += $(voltagedomain-common) +obj-$(CONFIG_ARCH_OMAP3) += voltagedomains3xxx_data.o +obj-$(CONFIG_ARCH_OMAP4) += $(voltagedomain-common) +obj-$(CONFIG_ARCH_OMAP4) += voltagedomains44xx_data.o +obj-$(CONFIG_SOC_AM33XX) += $(voltagedomain-common) +obj-$(CONFIG_SOC_AM43XX) += $(voltagedomain-common) +obj-$(CONFIG_SOC_OMAP5) += $(voltagedomain-common) +obj-$(CONFIG_SOC_OMAP5) += voltagedomains54xx_data.o +obj-$(CONFIG_SOC_DRA7XX) += $(voltagedomain-common) + +# OMAP powerdomain framework +powerdomain-common += powerdomain.o powerdomain-common.o +obj-$(CONFIG_ARCH_OMAP2) += $(powerdomain-common) +obj-$(CONFIG_ARCH_OMAP2) += powerdomains2xxx_data.o +obj-$(CONFIG_ARCH_OMAP2) += powerdomains2xxx_3xxx_data.o +obj-$(CONFIG_ARCH_OMAP3) += $(powerdomain-common) +obj-$(CONFIG_ARCH_OMAP3) += powerdomains3xxx_data.o +obj-$(CONFIG_ARCH_OMAP3) += powerdomains2xxx_3xxx_data.o +obj-$(CONFIG_ARCH_OMAP4) += $(powerdomain-common) +obj-$(CONFIG_ARCH_OMAP4) += powerdomains44xx_data.o +obj-$(CONFIG_SOC_AM33XX) += $(powerdomain-common) +obj-$(CONFIG_SOC_AM33XX) += powerdomains33xx_data.o +obj-$(CONFIG_SOC_AM43XX) += $(powerdomain-common) +obj-$(CONFIG_SOC_AM43XX) += powerdomains43xx_data.o +obj-$(CONFIG_SOC_OMAP5) += $(powerdomain-common) +obj-$(CONFIG_SOC_OMAP5) += powerdomains54xx_data.o +obj-$(CONFIG_SOC_DRA7XX) += $(powerdomain-common) +obj-$(CONFIG_SOC_DRA7XX) += powerdomains7xx_data.o + +# PRCM clockdomain control +clockdomain-common += clockdomain.o +obj-$(CONFIG_ARCH_OMAP2) += $(clockdomain-common) +obj-$(CONFIG_ARCH_OMAP2) += clockdomains2xxx_3xxx_data.o +obj-$(CONFIG_SOC_OMAP2420) += clockdomains2420_data.o +obj-$(CONFIG_SOC_OMAP2430) += clockdomains2430_data.o +obj-$(CONFIG_ARCH_OMAP3) += $(clockdomain-common) +obj-$(CONFIG_ARCH_OMAP3) += clockdomains2xxx_3xxx_data.o +obj-$(CONFIG_ARCH_OMAP3) += clockdomains3xxx_data.o +obj-$(CONFIG_ARCH_OMAP4) += $(clockdomain-common) +obj-$(CONFIG_ARCH_OMAP4) += clockdomains44xx_data.o +obj-$(CONFIG_SOC_AM33XX) += $(clockdomain-common) +obj-$(CONFIG_SOC_AM33XX) += clockdomains33xx_data.o +obj-$(CONFIG_SOC_TI81XX) += $(clockdomain-common) +obj-$(CONFIG_SOC_TI81XX) += clockdomains81xx_data.o +obj-$(CONFIG_SOC_AM43XX) += $(clockdomain-common) +obj-$(CONFIG_SOC_AM43XX) += clockdomains43xx_data.o +obj-$(CONFIG_SOC_OMAP5) += $(clockdomain-common) +obj-$(CONFIG_SOC_OMAP5) += clockdomains54xx_data.o +obj-$(CONFIG_SOC_DRA7XX) += $(clockdomain-common) +obj-$(CONFIG_SOC_DRA7XX) += clockdomains7xx_data.o + +# Clock framework +obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) +obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpllcore.o +obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_virt_prcm_set.o +obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpll.o +obj-$(CONFIG_ARCH_OMAP3) += $(clock-common) +obj-$(CONFIG_ARCH_OMAP4) += $(clock-common) +obj-$(CONFIG_SOC_AM33XX) += $(clock-common) +obj-$(CONFIG_SOC_OMAP5) += $(clock-common) +obj-$(CONFIG_SOC_DRA7XX) += $(clock-common) +obj-$(CONFIG_SOC_AM43XX) += $(clock-common) + +# OMAP2 clock rate set data (old "OPP" data) +obj-$(CONFIG_SOC_OMAP2420) += opp2420_data.o +obj-$(CONFIG_SOC_OMAP2430) += opp2430_data.o + +# hwmod data +obj-$(CONFIG_SOC_OMAP2420) += omap_hwmod_2xxx_ipblock_data.o +obj-$(CONFIG_SOC_OMAP2420) += omap_hwmod_2xxx_3xxx_ipblock_data.o +obj-$(CONFIG_SOC_OMAP2420) += omap_hwmod_2xxx_interconnect_data.o +obj-$(CONFIG_SOC_OMAP2420) += omap_hwmod_2420_data.o +obj-$(CONFIG_SOC_OMAP2430) += omap_hwmod_2xxx_ipblock_data.o +obj-$(CONFIG_SOC_OMAP2430) += omap_hwmod_2xxx_3xxx_ipblock_data.o +obj-$(CONFIG_SOC_OMAP2430) += omap_hwmod_2xxx_interconnect_data.o +obj-$(CONFIG_SOC_OMAP2430) += omap_hwmod_2430_data.o +obj-$(CONFIG_ARCH_OMAP3) += omap_hwmod_2xxx_3xxx_ipblock_data.o +obj-$(CONFIG_ARCH_OMAP3) += omap_hwmod_3xxx_data.o +obj-$(CONFIG_SOC_TI81XX) += omap_hwmod_81xx_data.o + +# OMAP2420 MSDI controller integration support ("MMC") +obj-$(CONFIG_SOC_OMAP2420) += msdi.o + +# Specific board support +obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o pdata-quirks.o +obj-$(CONFIG_MACH_NOKIA_N8X0) += board-n8x0.o + +# Platform specific device init code + +obj-y += omap_phy_internal.o + +obj-$(CONFIG_MACH_OMAP2_TUSB6010) += usb-tusb6010.o + +$(obj)/pm-asm-offsets.h: $(obj)/pm-asm-offsets.s FORCE + $(call filechk,offsets,__TI_PM_ASM_OFFSETS_H__) + +$(obj)/sleep33xx.o $(obj)/sleep43xx.o: $(obj)/pm-asm-offsets.h + +targets += pm-asm-offsets.s +clean-files += pm-asm-offsets.h + +obj-$(CONFIG_OMAP_IOMMU) += omap-iommu.o diff --git a/arch/arm/mach-omap2/am33xx-restart.c b/arch/arm/mach-omap2/am33xx-restart.c new file mode 100644 index 000000000..3cdf223ad --- /dev/null +++ b/arch/arm/mach-omap2/am33xx-restart.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * am33xx-restart.c - Code common to all AM33xx machines. + */ +#include <dt-bindings/pinctrl/am33xx.h> +#include <linux/delay.h> +#include <linux/kernel.h> +#include <linux/reboot.h> + +#include "common.h" +#include "control.h" +#include "prm.h" + +/* + * Advisory 1.0.36 EMU0 and EMU1: Terminals Must be Pulled High Before + * ICEPick Samples + * + * If EMU0/EMU1 pins have been used as GPIO outputs and actively driving low + * level, the device might not reboot in normal mode. We are in a bad position + * to override GPIO state here, so just switch the pins into EMU input mode + * (that's what reset will do anyway) and wait a bit, because the state will be + * latched 190 ns after reset. + */ +static void am33xx_advisory_1_0_36(void) +{ + u32 emu0 = omap_ctrl_readl(AM335X_PIN_EMU0); + u32 emu1 = omap_ctrl_readl(AM335X_PIN_EMU1); + + /* If both pins are in EMU mode, nothing to do */ + if (!(emu0 & 7) && !(emu1 & 7)) + return; + + /* Switch GPIO3_7/GPIO3_8 into EMU0/EMU1 modes respectively */ + omap_ctrl_writel(emu0 & ~7, AM335X_PIN_EMU0); + omap_ctrl_writel(emu1 & ~7, AM335X_PIN_EMU1); + + /* + * Give pull-ups time to load the pin/PCB trace capacity. + * 5 ms shall be enough to load 1 uF (would be huge capacity for these + * pins) with TI-recommended 4k7 external pull-ups. + */ + mdelay(5); +} + +/** + * am33xx_restart - trigger a software restart of the SoC + * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c + * @cmd: passed from the userspace program rebooting the system (if provided) + * + * Resets the SoC. For @cmd, see the 'reboot' syscall in + * kernel/sys.c. No return value. + */ +void am33xx_restart(enum reboot_mode mode, const char *cmd) +{ + am33xx_advisory_1_0_36(); + + /* TODO: Handle cmd if necessary */ + prm_reboot_mode = mode; + + omap_prm_reset_system(); +} diff --git a/arch/arm/mach-omap2/am33xx.h b/arch/arm/mach-omap2/am33xx.h new file mode 100644 index 000000000..32bcfcf34 --- /dev/null +++ b/arch/arm/mach-omap2/am33xx.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * This file contains the address info for various AM33XX modules. + * + * Copyright (C) 2011 Texas Instruments, Inc. - https://www.ti.com/ + */ + +#ifndef __ASM_ARCH_AM33XX_H +#define __ASM_ARCH_AM33XX_H + +#define L4_SLOW_AM33XX_BASE 0x48000000 + +#define AM33XX_SCM_BASE 0x44E10000 +#define AM33XX_CTRL_BASE AM33XX_SCM_BASE +#define AM33XX_PRCM_BASE 0x44E00000 +#define AM43XX_PRCM_BASE 0x44DF0000 +#define AM33XX_TAP_BASE (AM33XX_CTRL_BASE + 0x3FC) + +#endif /* __ASM_ARCH_AM33XX_H */ diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c new file mode 100644 index 000000000..bff673e93 --- /dev/null +++ b/arch/arm/mach-omap2/board-generic.c @@ -0,0 +1,377 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2005 Nokia Corporation + * Author: Paul Mundt <paul.mundt@nokia.com> + * + * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/ + * + * Modified from the original mach-omap/omap2/board-generic.c did by Paul + * to support the OMAP2+ device tree boards with an unique board file. + */ +#include <linux/io.h> +#include <linux/irqdomain.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> + +#include <asm/setup.h> +#include <asm/mach/arch.h> +#include <asm/system_info.h> + +#include "common.h" + +static const struct of_device_id omap_dt_match_table[] __initconst = { + { .compatible = "simple-bus", }, + { .compatible = "ti,omap-infra", }, + { } +}; + +static void __init __maybe_unused omap_generic_init(void) +{ + pdata_quirks_init(omap_dt_match_table); + omap_soc_device_init(); +} + +/* Clocks are needed early, see drivers/clocksource for the rest */ +static void __init __maybe_unused omap_init_time_of(void) +{ + omap_clk_init(); + timer_probe(); +} + +/* Used by am437x for ARM timer in non-SMP configurations */ +#if !defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) +void tick_broadcast(const struct cpumask *mask) +{ +} +#endif + +#ifdef CONFIG_SOC_OMAP2420 +static const char *const omap242x_boards_compat[] __initconst = { + "ti,omap2420", + NULL, +}; + +DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = omap242x_map_io, + .init_early = omap2420_init_early, + .init_machine = omap_generic_init, + .init_time = omap_init_time_of, + .dt_compat = omap242x_boards_compat, + .restart = omap2xxx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_OMAP2430 +static const char *const omap243x_boards_compat[] __initconst = { + "ti,omap2430", + NULL, +}; + +DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = omap243x_map_io, + .init_early = omap2430_init_early, + .init_machine = omap_generic_init, + .init_time = omap_init_time_of, + .dt_compat = omap243x_boards_compat, + .restart = omap2xxx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_ARCH_OMAP3 +/* Some boards need board name for legacy userspace in /proc/cpuinfo */ +static const char *const n900_boards_compat[] __initconst = { + "nokia,omap3-n900", + NULL, +}; + +/* Set system_rev from atags */ +static void __init rx51_set_system_rev(const struct tag *tags) +{ + const struct tag *tag; + + if (tags->hdr.tag != ATAG_CORE) + return; + + for_each_tag(tag, tags) { + if (tag->hdr.tag == ATAG_REVISION) { + system_rev = tag->u.revision.rev; + break; + } + } +} + +/* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags, + * save them while the data is still not overwritten + */ +static void __init rx51_reserve(void) +{ + const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100); + + save_atags(tags); + rx51_set_system_rev(tags); + omap_reserve(); +} + +DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board") + .reserve = rx51_reserve, + .map_io = omap3_map_io, + .init_early = omap3430_init_early, + .init_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = n900_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END + +/* Generic omap3 boards, most boards can use these */ +static const char *const omap3_boards_compat[] __initconst = { + "ti,omap3430", + "ti,omap3", + NULL, +}; + +DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = omap3_map_io, + .init_early = omap3430_init_early, + .init_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = omap3_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END + +static const char *const omap36xx_boards_compat[] __initconst = { + "ti,omap3630", + "ti,omap36xx", + NULL, +}; + +DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = omap3_map_io, + .init_early = omap3630_init_early, + .init_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = omap36xx_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END + +static const char *const omap3_gp_boards_compat[] __initconst = { + "ti,omap3-beagle", + "timll,omap3-devkit8000", + NULL, +}; + +DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = omap3_map_io, + .init_early = omap3430_init_early, + .init_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = omap3_gp_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END + +static const char *const am3517_boards_compat[] __initconst = { + "ti,am3517", + NULL, +}; + +DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = omap3_map_io, + .init_early = am35xx_init_early, + .init_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = am3517_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_TI81XX +static const char *const ti814x_boards_compat[] __initconst = { + "ti,dm8148", + "ti,dm814", + NULL, +}; + +DT_MACHINE_START(TI814X_DT, "Generic ti814x (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = ti81xx_map_io, + .init_early = ti814x_init_early, + .init_machine = omap_generic_init, + .init_late = ti81xx_init_late, + .init_time = omap_init_time_of, + .dt_compat = ti814x_boards_compat, + .restart = ti81xx_restart, +MACHINE_END + +static const char *const ti816x_boards_compat[] __initconst = { + "ti,dm8168", + "ti,dm816", + NULL, +}; + +DT_MACHINE_START(TI816X_DT, "Generic ti816x (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = ti81xx_map_io, + .init_early = ti816x_init_early, + .init_machine = omap_generic_init, + .init_late = ti81xx_init_late, + .init_time = omap_init_time_of, + .dt_compat = ti816x_boards_compat, + .restart = ti81xx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_AM33XX +static const char *const am33xx_boards_compat[] __initconst = { + "ti,am33xx", + NULL, +}; + +DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = am33xx_map_io, + .init_early = am33xx_init_early, + .init_machine = omap_generic_init, + .init_late = am33xx_init_late, + .init_time = omap_init_time_of, + .dt_compat = am33xx_boards_compat, + .restart = am33xx_restart, + /* + * Historically am33xx supported only REBOOT_WARM even though default + * reboot_mode was REBOOT_COLD. Reflect legacy de-facto behaviour in + * SYSFS. + */ + .reboot_mode = REBOOT_WARM, +MACHINE_END +#endif + +#ifdef CONFIG_ARCH_OMAP4 +static const char *const omap4_boards_compat[] __initconst = { + "ti,omap4460", + "ti,omap4430", + "ti,omap4", + NULL, +}; + +DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)") + .l2c_aux_val = OMAP_L2C_AUX_CTRL, + .l2c_aux_mask = 0xcf9fffff, + .l2c_write_sec = omap4_l2c310_write_sec, + .reserve = omap_reserve, + .smp = smp_ops(omap4_smp_ops), + .map_io = omap4_map_io, + .init_early = omap4430_init_early, + .init_irq = omap_gic_of_init, + .init_machine = omap_generic_init, + .init_late = omap4430_init_late, + .init_time = omap_init_time_of, + .dt_compat = omap4_boards_compat, + .restart = omap44xx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_OMAP5 +static const char *const omap5_boards_compat[] __initconst = { + "ti,omap5432", + "ti,omap5430", + "ti,omap5", + NULL, +}; + +DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)") +#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) + .dma_zone_size = SZ_2G, +#endif + .reserve = omap_reserve, + .smp = smp_ops(omap4_smp_ops), + .map_io = omap5_map_io, + .init_early = omap5_init_early, + .init_irq = omap_gic_of_init, + .init_machine = omap_generic_init, + .init_late = omap5_init_late, + .init_time = omap5_realtime_timer_init, + .dt_compat = omap5_boards_compat, + .restart = omap44xx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_AM43XX +static const char *const am43_boards_compat[] __initconst = { + "ti,am4372", + "ti,am43", + NULL, +}; + +DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)") + .l2c_aux_val = OMAP_L2C_AUX_CTRL, + .l2c_aux_mask = 0xcf9fffff, + .l2c_write_sec = omap4_l2c310_write_sec, + .map_io = am33xx_map_io, + .init_early = am43xx_init_early, + .init_late = am43xx_init_late, + .init_irq = omap_gic_of_init, + .init_machine = omap_generic_init, + .init_time = omap_init_time_of, + .dt_compat = am43_boards_compat, + .restart = omap44xx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_DRA7XX +static const char *const dra74x_boards_compat[] __initconst = { + "ti,dra762", + "ti,am5728", + "ti,am5726", + "ti,dra742", + "ti,dra7", + NULL, +}; + +DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)") +#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) + .dma_zone_size = SZ_2G, +#endif + .reserve = omap_reserve, + .smp = smp_ops(omap4_smp_ops), + .map_io = dra7xx_map_io, + .init_early = dra7xx_init_early, + .init_late = dra7xx_init_late, + .init_irq = omap_gic_of_init, + .init_machine = omap_generic_init, + .init_time = omap5_realtime_timer_init, + .dt_compat = dra74x_boards_compat, + .restart = omap44xx_restart, +MACHINE_END + +static const char *const dra72x_boards_compat[] __initconst = { + "ti,am5718", + "ti,am5716", + "ti,dra722", + "ti,dra718", + NULL, +}; + +DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)") +#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) + .dma_zone_size = SZ_2G, +#endif + .reserve = omap_reserve, + .map_io = dra7xx_map_io, + .init_early = dra7xx_init_early, + .init_late = dra7xx_init_late, + .init_irq = omap_gic_of_init, + .init_machine = omap_generic_init, + .init_time = omap5_realtime_timer_init, + .dt_compat = dra72x_boards_compat, + .restart = omap44xx_restart, +MACHINE_END +#endif diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c new file mode 100644 index 000000000..d9acd32c5 --- /dev/null +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -0,0 +1,512 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/board-n8x0.c + * + * Copyright (C) 2005-2009 Nokia Corporation + * Author: Juha Yrjola <juha.yrjola@nokia.com> + * + * Modified from mach-omap2/board-generic.c + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/gpio/machine.h> +#include <linux/gpio/consumer.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/stddef.h> +#include <linux/i2c.h> +#include <linux/spi/spi.h> +#include <linux/usb/musb.h> +#include <linux/mmc/host.h> +#include <linux/platform_data/mmc-omap.h> +#include <linux/mfd/menelaus.h> + +#include <asm/mach/arch.h> +#include <asm/mach-types.h> + +#include "common.h" +#include "mmc.h" +#include "usb-tusb6010.h" +#include "soc.h" +#include "common-board-devices.h" + +#define TUSB6010_ASYNC_CS 1 +#define TUSB6010_SYNC_CS 4 +#define TUSB6010_DMACHAN 0x3f + +#define NOKIA_N810_WIMAX (1 << 2) +#define NOKIA_N810 (1 << 1) +#define NOKIA_N800 (1 << 0) + +static u32 board_caps; + +#define board_is_n800() (board_caps & NOKIA_N800) +#define board_is_n810() (board_caps & NOKIA_N810) +#define board_is_n810_wimax() (board_caps & NOKIA_N810_WIMAX) + +static void board_check_revision(void) +{ + if (of_machine_is_compatible("nokia,n800")) + board_caps = NOKIA_N800; + else if (of_machine_is_compatible("nokia,n810")) + board_caps = NOKIA_N810; + else if (of_machine_is_compatible("nokia,n810-wimax")) + board_caps = NOKIA_N810_WIMAX; + + if (!board_caps) + pr_err("Unknown board\n"); +} + +#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) + +static struct musb_hdrc_config musb_config = { + .multipoint = 1, + .dyn_fifo = 1, + .num_eps = 16, + .ram_bits = 12, +}; + +static struct musb_hdrc_platform_data tusb_data = { + .mode = MUSB_OTG, + .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */ + .power = 100, /* Max 100 mA VBUS for host mode */ + .config = &musb_config, +}; + +static struct gpiod_lookup_table tusb_gpio_table = { + .dev_id = "musb-tusb", + .table = { + GPIO_LOOKUP("gpio-0-31", 0, "enable", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-32-63", 26, "int", GPIO_ACTIVE_HIGH), + { } + }, +}; + +static void __init n8x0_usb_init(void) +{ + int ret = 0; + + gpiod_add_lookup_table(&tusb_gpio_table); + ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2, + TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS, + TUSB6010_DMACHAN); + if (ret != 0) + return; + + pr_info("TUSB 6010\n"); + + return; +} +#else + +static void __init n8x0_usb_init(void) {} + +#endif /*CONFIG_USB_MUSB_TUSB6010 */ + +#if defined(CONFIG_MENELAUS) && IS_ENABLED(CONFIG_MMC_OMAP) + +/* + * On both N800 and N810, only the first of the two MMC controllers is in use. + * The two MMC slots are multiplexed via Menelaus companion chip over I2C. + * On N800, both slots are powered via Menelaus. On N810, only one of the + * slots is powered via Menelaus. The N810 EMMC is powered via GPIO. + * + * VMMC slot 1 on both N800 and N810 + * VDCDC3_APE and VMCS2_APE slot 2 on N800 + * GPIO23 and GPIO9 slot 2 EMMC on N810 + * + */ +static int slot1_cover_open; +static int slot2_cover_open; +static struct device *mmc_device; + +static struct gpiod_lookup_table nokia800_mmc_gpio_table = { + .dev_id = "mmci-omap.0", + .table = { + /* Slot switch, GPIO 96 */ + GPIO_LOOKUP("gpio-96-127", 0, "switch", GPIO_ACTIVE_HIGH), + { } + }, +}; + +static struct gpiod_lookup_table nokia810_mmc_gpio_table = { + .dev_id = "mmci-omap.0", + .table = { + /* Slot switch, GPIO 96 */ + GPIO_LOOKUP("gpio-96-127", 0, "switch", GPIO_ACTIVE_HIGH), + /* Slot index 1, VSD power, GPIO 23 */ + GPIO_LOOKUP_IDX("gpio-0-31", 23, "vsd", 1, GPIO_ACTIVE_HIGH), + /* Slot index 1, VIO power, GPIO 9 */ + GPIO_LOOKUP_IDX("gpio-0-31", 9, "vio", 1, GPIO_ACTIVE_HIGH), + { } + }, +}; + +static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, + int power_on, int vdd) +{ + int mV; + +#ifdef CONFIG_MMC_DEBUG + dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, + str_on_off(power_on), vdd); +#endif + if (slot == 0) { + if (!power_on) + return menelaus_set_vmmc(0); + switch (1 << vdd) { + case MMC_VDD_33_34: + case MMC_VDD_32_33: + case MMC_VDD_31_32: + mV = 3100; + break; + case MMC_VDD_30_31: + mV = 3000; + break; + case MMC_VDD_28_29: + mV = 2800; + break; + case MMC_VDD_165_195: + mV = 1850; + break; + default: + BUG(); + } + return menelaus_set_vmmc(mV); + } else { + if (!power_on) + return menelaus_set_vdcdc(3, 0); + switch (1 << vdd) { + case MMC_VDD_33_34: + case MMC_VDD_32_33: + mV = 3300; + break; + case MMC_VDD_30_31: + case MMC_VDD_29_30: + mV = 3000; + break; + case MMC_VDD_28_29: + case MMC_VDD_27_28: + mV = 2800; + break; + case MMC_VDD_24_25: + case MMC_VDD_23_24: + mV = 2400; + break; + case MMC_VDD_22_23: + case MMC_VDD_21_22: + mV = 2200; + break; + case MMC_VDD_20_21: + mV = 2000; + break; + case MMC_VDD_165_195: + mV = 1800; + break; + default: + BUG(); + } + return menelaus_set_vdcdc(3, mV); + } + return 0; +} + +static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on, + int vdd) +{ + if (board_is_n800() || slot == 0) + return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd); + + /* The n810 power will be handled by GPIO code in the driver */ + + return 0; +} + +static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) +{ + int r; + + dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1, + bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); + BUG_ON(slot != 0 && slot != 1); + slot++; + switch (bus_mode) { + case MMC_BUSMODE_OPENDRAIN: + r = menelaus_set_mmc_opendrain(slot, 1); + break; + case MMC_BUSMODE_PUSHPULL: + r = menelaus_set_mmc_opendrain(slot, 0); + break; + default: + BUG(); + } + if (r != 0 && printk_ratelimit()) + dev_err(dev, "MMC: unable to set bus mode for slot %d\n", + slot); + return r; +} + +static int n8x0_mmc_get_cover_state(struct device *dev, int slot) +{ + slot++; + BUG_ON(slot != 1 && slot != 2); + if (slot == 1) + return slot1_cover_open; + else + return slot2_cover_open; +} + +static void n8x0_mmc_callback(void *data, u8 card_mask) +{ +#ifdef CONFIG_MMC_OMAP + int bit, *openp, index; + + if (board_is_n800()) { + bit = 1 << 1; + openp = &slot2_cover_open; + index = 1; + } else { + bit = 1; + openp = &slot1_cover_open; + index = 0; + } + + if (card_mask & bit) + *openp = 1; + else + *openp = 0; + + omap_mmc_notify_cover_event(mmc_device, index, *openp); +#else + pr_warn("MMC: notify cover event not available\n"); +#endif +} + +static int n8x0_mmc_late_init(struct device *dev) +{ + int r, bit, *openp; + int vs2sel; + + mmc_device = dev; + + r = menelaus_set_slot_sel(1); + if (r < 0) + return r; + + if (board_is_n800()) + vs2sel = 0; + else + vs2sel = 2; + + r = menelaus_set_mmc_slot(2, 0, vs2sel, 1); + if (r < 0) + return r; + + n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */ + n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16); + + r = menelaus_set_mmc_slot(1, 1, 0, 1); + if (r < 0) + return r; + r = menelaus_set_mmc_slot(2, 1, vs2sel, 1); + if (r < 0) + return r; + + r = menelaus_get_slot_pin_states(); + if (r < 0) + return r; + + if (board_is_n800()) { + bit = 1 << 1; + openp = &slot2_cover_open; + } else { + bit = 1; + openp = &slot1_cover_open; + slot2_cover_open = 0; + } + + /* All slot pin bits seem to be inversed until first switch change */ + if (r == 0xf || r == (0xf & ~bit)) + r = ~r; + + if (r & bit) + *openp = 1; + else + *openp = 0; + + r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL); + + return r; +} + +static void n8x0_mmc_shutdown(struct device *dev) +{ + int vs2sel; + + if (board_is_n800()) + vs2sel = 0; + else + vs2sel = 2; + + menelaus_set_mmc_slot(1, 0, 0, 0); + menelaus_set_mmc_slot(2, 0, vs2sel, 0); +} + +static void n8x0_mmc_cleanup(struct device *dev) +{ + menelaus_unregister_mmc_callback(); +} + +/* + * MMC controller1 has two slots that are multiplexed via I2C. + * MMC controller2 is not in use. + */ +static struct omap_mmc_platform_data mmc1_data = { + .nr_slots = 0, + .init = n8x0_mmc_late_init, + .cleanup = n8x0_mmc_cleanup, + .shutdown = n8x0_mmc_shutdown, + .max_freq = 24000000, + .slots[0] = { + .wires = 4, + .set_power = n8x0_mmc_set_power, + .set_bus_mode = n8x0_mmc_set_bus_mode, + .get_cover_state = n8x0_mmc_get_cover_state, + .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 | + MMC_VDD_32_33 | MMC_VDD_33_34, + .name = "internal", + }, + .slots[1] = { + .set_power = n8x0_mmc_set_power, + .set_bus_mode = n8x0_mmc_set_bus_mode, + .get_cover_state = n8x0_mmc_get_cover_state, + .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 | + MMC_VDD_21_22 | MMC_VDD_22_23 | + MMC_VDD_23_24 | MMC_VDD_24_25 | + MMC_VDD_27_28 | MMC_VDD_28_29 | + MMC_VDD_29_30 | MMC_VDD_30_31 | + MMC_VDD_32_33 | MMC_VDD_33_34, + .name = "external", + }, +}; + +static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC]; + +static void __init n8x0_mmc_init(void) +{ + if (board_is_n810()) { + mmc1_data.slots[0].name = "external"; + + /* + * Some Samsung Movinand chips do not like open-ended + * multi-block reads and fall to braind-dead state + * while doing so. Reducing the number of blocks in + * the transfer or delays in clock disable do not help + */ + mmc1_data.slots[1].name = "internal"; + mmc1_data.slots[1].ban_openended = 1; + gpiod_add_lookup_table(&nokia810_mmc_gpio_table); + } else { + gpiod_add_lookup_table(&nokia800_mmc_gpio_table); + } + + mmc1_data.nr_slots = 2; + mmc_data[0] = &mmc1_data; +} +#else +static struct omap_mmc_platform_data mmc1_data; +static void __init n8x0_mmc_init(void) +{ +} +#endif /* CONFIG_MMC_OMAP */ + +#ifdef CONFIG_MENELAUS + +static int n8x0_auto_sleep_regulators(void) +{ + u32 val; + int ret; + + val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \ + | EN_VAUX_SLEEP | EN_VIO_SLEEP \ + | EN_VMEM_SLEEP | EN_DC3_SLEEP \ + | EN_VC_SLEEP | EN_DC2_SLEEP; + + ret = menelaus_set_regulator_sleep(1, val); + if (ret < 0) { + pr_err("Could not set regulators to sleep on menelaus: %u\n", + ret); + return ret; + } + return 0; +} + +static int n8x0_auto_voltage_scale(void) +{ + int ret; + + ret = menelaus_set_vcore_hw(1400, 1050); + if (ret < 0) { + pr_err("Could not set VCORE voltage on menelaus: %u\n", ret); + return ret; + } + return 0; +} + +static int n8x0_menelaus_late_init(struct device *dev) +{ + int ret; + + ret = n8x0_auto_voltage_scale(); + if (ret < 0) + return ret; + ret = n8x0_auto_sleep_regulators(); + if (ret < 0) + return ret; + return 0; +} + +#else +static int n8x0_menelaus_late_init(struct device *dev) +{ + return 0; +} +#endif + +struct menelaus_platform_data n8x0_menelaus_platform_data = { + .late_init = n8x0_menelaus_late_init, +}; + +static struct gpiod_lookup_table nokia810_asoc_gpio_table = { + .dev_id = "soc-audio", + .table = { + GPIO_LOOKUP("gpio-0-15", 10, "headset", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-80-111", 21, "speaker", GPIO_ACTIVE_HIGH), + { } + }, +}; + +static int __init n8x0_late_initcall(void) +{ + if (!board_caps) + return -ENODEV; + + n8x0_mmc_init(); + n8x0_usb_init(); + gpiod_add_lookup_table(&nokia810_asoc_gpio_table); + + return 0; +} +omap_late_initcall(n8x0_late_initcall); + +/* + * Legacy init pdata init for n8x0. Note that we want to follow the + * I2C bus numbering starting at 0 for device tree like other omaps. + */ +void * __init n8x0_legacy_init(void) +{ + board_check_revision(); + return &mmc1_data; +} diff --git a/arch/arm/mach-omap2/clkt2xxx_dpll.c b/arch/arm/mach-omap2/clkt2xxx_dpll.c new file mode 100644 index 000000000..0edebf335 --- /dev/null +++ b/arch/arm/mach-omap2/clkt2xxx_dpll.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2-specific DPLL control functions + * + * Copyright (C) 2011 Nokia Corporation + * Paul Walmsley + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include "clock.h" +#include "cm2xxx.h" +#include "cm-regbits-24xx.h" + +/* Private functions */ + +/** + * _allow_idle - enable DPLL autoidle bits + * @clk: struct clk * of the DPLL to operate on + * + * Enable DPLL automatic idle control. The DPLL will enter low-power + * stop when its downstream clocks are gated. No return value. + * REVISIT: DPLL can optionally enter low-power bypass by writing 0x1 + * instead. Add some mechanism to optionally enter this mode. + */ +static void _allow_idle(struct clk_hw_omap *clk) +{ + if (!clk || !clk->dpll_data) + return; + + omap2xxx_cm_set_dpll_auto_low_power_stop(); +} + +/** + * _deny_idle - prevent DPLL from automatically idling + * @clk: struct clk * of the DPLL to operate on + * + * Disable DPLL automatic idle control. No return value. + */ +static void _deny_idle(struct clk_hw_omap *clk) +{ + if (!clk || !clk->dpll_data) + return; + + omap2xxx_cm_set_dpll_disable_autoidle(); +} + + +/* Public data */ +const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll = { + .allow_idle = _allow_idle, + .deny_idle = _deny_idle, +}; diff --git a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c new file mode 100644 index 000000000..93f6d3cd9 --- /dev/null +++ b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c @@ -0,0 +1,194 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * DPLL + CORE_CLK composite clock functions + * + * Copyright (C) 2005-2008 Texas Instruments, Inc. + * Copyright (C) 2004-2010 Nokia Corporation + * + * Contacts: + * Richard Woodruff <r-woodruff2@ti.com> + * Paul Walmsley + * + * Based on earlier work by Tuukka Tikkanen, Tony Lindgren, + * Gordon McNutt and RidgeRun, Inc. + * + * XXX The DPLL and CORE clocks should be split into two separate clock + * types. + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/clk.h> +#include <linux/clk/ti.h> +#include <linux/io.h> + +#include "clock.h" +#include "clock2xxx.h" +#include "opp2xxx.h" +#include "cm2xxx.h" +#include "cm-regbits-24xx.h" +#include "sdrc.h" +#include "sram.h" + +/* #define DOWN_VARIABLE_DPLL 1 */ /* Experimental */ + +/* + * dpll_core_ck: pointer to the combined dpll_ck + core_ck on OMAP2xxx + * (currently defined as "dpll_ck" in the OMAP2xxx clock tree). Set + * during dpll_ck init and used later by omap2xxx_clk_get_core_rate(). + */ +static struct clk_hw_omap *dpll_core_ck; + +/** + * omap2xxx_clk_get_core_rate - return the CORE_CLK rate + * + * Returns the CORE_CLK rate. CORE_CLK can have one of three rate + * sources on OMAP2xxx: the DPLL CLKOUT rate, DPLL CLKOUTX2, or 32KHz + * (the latter is unusual). This currently should be called with + * struct clk *dpll_ck, which is a composite clock of dpll_ck and + * core_ck. + */ +unsigned long omap2xxx_clk_get_core_rate(void) +{ + long long core_clk; + u32 v; + + WARN_ON(!dpll_core_ck); + + core_clk = omap2_get_dpll_rate(dpll_core_ck); + + v = omap2xxx_cm_get_core_clk_src(); + + if (v == CORE_CLK_SRC_32K) + core_clk = 32768; + else + core_clk *= v; + + return core_clk; +} + +/* + * Uses the current prcm set to tell if a rate is valid. + * You can go slower, but not faster within a given rate set. + */ +static long omap2_dpllcore_round_rate(unsigned long target_rate) +{ + u32 high, low, core_clk_src; + + core_clk_src = omap2xxx_cm_get_core_clk_src(); + + if (core_clk_src == CORE_CLK_SRC_DPLL) { /* DPLL clockout */ + high = curr_prcm_set->dpll_speed * 2; + low = curr_prcm_set->dpll_speed; + } else { /* DPLL clockout x 2 */ + high = curr_prcm_set->dpll_speed; + low = curr_prcm_set->dpll_speed / 2; + } + +#ifdef DOWN_VARIABLE_DPLL + if (target_rate > high) + return high; + else + return target_rate; +#else + if (target_rate > low) + return high; + else + return low; +#endif + +} + +unsigned long omap2_dpllcore_recalc(struct clk_hw *hw, + unsigned long parent_rate) +{ + return omap2xxx_clk_get_core_rate(); +} + +int omap2_reprogram_dpllcore(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_hw_omap *clk = to_clk_hw_omap(hw); + u32 cur_rate, low, mult, div, valid_rate, done_rate; + u32 bypass = 0; + struct prcm_config tmpset; + const struct dpll_data *dd; + + cur_rate = omap2xxx_clk_get_core_rate(); + mult = omap2xxx_cm_get_core_clk_src(); + + if ((rate == (cur_rate / 2)) && (mult == 2)) { + omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1); + } else if ((rate == (cur_rate * 2)) && (mult == 1)) { + omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1); + } else if (rate != cur_rate) { + valid_rate = omap2_dpllcore_round_rate(rate); + if (valid_rate != rate) + return -EINVAL; + + if (mult == 1) + low = curr_prcm_set->dpll_speed; + else + low = curr_prcm_set->dpll_speed / 2; + + dd = clk->dpll_data; + if (!dd) + return -EINVAL; + + tmpset.cm_clksel1_pll = + omap_clk_ll_ops.clk_readl(&dd->mult_div1_reg); + tmpset.cm_clksel1_pll &= ~(dd->mult_mask | + dd->div1_mask); + div = ((curr_prcm_set->xtal_speed / 1000000) - 1); + tmpset.cm_clksel2_pll = omap2xxx_cm_get_core_pll_config(); + tmpset.cm_clksel2_pll &= ~OMAP24XX_CORE_CLK_SRC_MASK; + if (rate > low) { + tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL_X2; + mult = ((rate / 2) / 1000000); + done_rate = CORE_CLK_SRC_DPLL_X2; + } else { + tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL; + mult = (rate / 1000000); + done_rate = CORE_CLK_SRC_DPLL; + } + tmpset.cm_clksel1_pll |= (div << __ffs(dd->mult_mask)); + tmpset.cm_clksel1_pll |= (mult << __ffs(dd->div1_mask)); + + /* Worst case */ + tmpset.base_sdrc_rfr = SDRC_RFR_CTRL_BYPASS; + + if (rate == curr_prcm_set->xtal_speed) /* If asking for 1-1 */ + bypass = 1; + + /* For omap2xxx_sdrc_init_params() */ + omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1); + + /* Force dll lock mode */ + omap2_set_prcm(tmpset.cm_clksel1_pll, tmpset.base_sdrc_rfr, + bypass); + + /* Errata: ret dll entry state */ + omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked()); + omap2xxx_sdrc_reprogram(done_rate, 0); + } + + return 0; +} + +/** + * omap2xxx_clkt_dpllcore_init - clk init function for dpll_ck + * @clk: struct clk *dpll_ck + * + * Store a local copy of @clk in dpll_core_ck so other code can query + * the core rate without having to clk_get(), which can sleep. Must + * only be called once. No return value. XXX If the clock + * registration process is ever changed such that dpll_ck is no longer + * statically defined, this code may need to change to increment some + * kind of use count on dpll_ck. + */ +void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw) +{ + WARN(dpll_core_ck, "dpll_core_ck already set - should never happen"); + dpll_core_ck = to_clk_hw_omap(hw); +} diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c new file mode 100644 index 000000000..2b04e422b --- /dev/null +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c @@ -0,0 +1,259 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2xxx DVFS virtual clock functions + * + * Copyright (C) 2005-2008, 2012 Texas Instruments, Inc. + * Copyright (C) 2004-2010 Nokia Corporation + * + * Contacts: + * Richard Woodruff <r-woodruff2@ti.com> + * Paul Walmsley + * + * Based on earlier work by Tuukka Tikkanen, Tony Lindgren, + * Gordon McNutt and RidgeRun, Inc. + * + * XXX Some of this code should be replaceable by the upcoming OPP layer + * code. However, some notion of "rate set" is probably still necessary + * for OMAP2xxx at least. Rate sets should be generalized so they can be + * used for any OMAP chip, not just OMAP2xxx. In particular, Richard Woodruff + * has in the past expressed a preference to use rate sets for OPP changes, + * rather than dynamically recalculating the clock tree, so if someone wants + * this badly enough to write the code to handle it, we should support it + * as an option. + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/cpufreq.h> +#include <linux/slab.h> + +#include "soc.h" +#include "clock.h" +#include "clock2xxx.h" +#include "opp2xxx.h" +#include "cm2xxx.h" +#include "cm-regbits-24xx.h" +#include "sdrc.h" +#include "sram.h" + +static u16 cpu_mask; + +const struct prcm_config *curr_prcm_set; +const struct prcm_config *rate_table; + +/* + * sys_ck_rate: the rate of the external high-frequency clock + * oscillator on the board. Set by the SoC-specific clock init code. + * Once set during a boot, will not change. + */ +static unsigned long sys_ck_rate; + +/** + * omap2_table_mpu_recalc - just return the MPU speed + * @clk: virt_prcm_set struct clk + * + * Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set. + */ +static unsigned long omap2_table_mpu_recalc(struct clk_hw *clk, + unsigned long parent_rate) +{ + return curr_prcm_set->mpu_speed; +} + +/* + * Look for a rate equal or less than the target rate given a configuration set. + * + * What's not entirely clear is "which" field represents the key field. + * Some might argue L3-DDR, others ARM, others IVA. This code is simple and + * just uses the ARM rates. + */ +static int omap2_determine_rate_to_table(struct clk_hw *hw, + struct clk_rate_request *req) +{ + const struct prcm_config *ptr; + long highest_rate; + + highest_rate = -EINVAL; + + for (ptr = rate_table; ptr->mpu_speed; ptr++) { + if (!(ptr->flags & cpu_mask)) + continue; + if (ptr->xtal_speed != sys_ck_rate) + continue; + + highest_rate = ptr->mpu_speed; + + /* Can check only after xtal frequency check */ + if (ptr->mpu_speed <= req->rate) + break; + } + req->rate = highest_rate; + + return 0; +} + +/* Sets basic clocks based on the specified rate */ +static int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + u32 cur_rate, done_rate, bypass = 0; + const struct prcm_config *prcm; + unsigned long found_speed = 0; + unsigned long flags; + + for (prcm = rate_table; prcm->mpu_speed; prcm++) { + if (!(prcm->flags & cpu_mask)) + continue; + + if (prcm->xtal_speed != sys_ck_rate) + continue; + + if (prcm->mpu_speed <= rate) { + found_speed = prcm->mpu_speed; + break; + } + } + + if (!found_speed) { + printk(KERN_INFO "Could not set MPU rate to %luMHz\n", + rate / 1000000); + return -EINVAL; + } + + curr_prcm_set = prcm; + cur_rate = omap2xxx_clk_get_core_rate(); + + if (prcm->dpll_speed == cur_rate / 2) { + omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1); + } else if (prcm->dpll_speed == cur_rate * 2) { + omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1); + } else if (prcm->dpll_speed != cur_rate) { + local_irq_save(flags); + + if (prcm->dpll_speed == prcm->xtal_speed) + bypass = 1; + + if ((prcm->cm_clksel2_pll & OMAP24XX_CORE_CLK_SRC_MASK) == + CORE_CLK_SRC_DPLL_X2) + done_rate = CORE_CLK_SRC_DPLL_X2; + else + done_rate = CORE_CLK_SRC_DPLL; + + omap2xxx_cm_set_mod_dividers(prcm->cm_clksel_mpu, + prcm->cm_clksel_dsp, + prcm->cm_clksel_gfx, + prcm->cm_clksel1_core, + prcm->cm_clksel_mdm); + + /* x2 to enter omap2xxx_sdrc_init_params() */ + omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1); + + omap2_set_prcm(prcm->cm_clksel1_pll, prcm->base_sdrc_rfr, + bypass); + + omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked()); + omap2xxx_sdrc_reprogram(done_rate, 0); + + local_irq_restore(flags); + } + + return 0; +} + +/** + * omap2xxx_clkt_vps_check_bootloader_rates - determine which of the rate + * table sets matches the current CORE DPLL hardware rate + * + * Check the MPU rate set by bootloader. Sets the 'curr_prcm_set' + * global to point to the active rate set when found; otherwise, sets + * it to NULL. No return value; + */ +static void omap2xxx_clkt_vps_check_bootloader_rates(void) +{ + const struct prcm_config *prcm = NULL; + unsigned long rate; + + rate = omap2xxx_clk_get_core_rate(); + for (prcm = rate_table; prcm->mpu_speed; prcm++) { + if (!(prcm->flags & cpu_mask)) + continue; + if (prcm->xtal_speed != sys_ck_rate) + continue; + if (prcm->dpll_speed <= rate) + break; + } + curr_prcm_set = prcm; +} + +/** + * omap2xxx_clkt_vps_late_init - store a copy of the sys_ck rate + * + * Store a copy of the sys_ck rate for later use by the OMAP2xxx DVFS + * code. (The sys_ck rate does not -- or rather, must not -- change + * during kernel runtime.) Must be called after we have a valid + * sys_ck rate, but before the virt_prcm_set clock rate is + * recalculated. No return value. + */ +static void omap2xxx_clkt_vps_late_init(void) +{ + struct clk *c; + + c = clk_get(NULL, "sys_ck"); + if (IS_ERR(c)) { + WARN(1, "could not locate sys_ck\n"); + } else { + sys_ck_rate = clk_get_rate(c); + clk_put(c); + } +} + +#ifdef CONFIG_OF +#include <linux/clk-provider.h> +#include <linux/clkdev.h> + +static const struct clk_ops virt_prcm_set_ops = { + .recalc_rate = &omap2_table_mpu_recalc, + .set_rate = &omap2_select_table_rate, + .determine_rate = &omap2_determine_rate_to_table, +}; + +/** + * omap2xxx_clkt_vps_init - initialize virt_prcm_set clock + * + * Does a manual init for the virtual prcm DVFS clock for OMAP2. This + * function is called only from omap2 DT clock init, as the virtual + * node is not modelled in the DT clock data. + */ +void omap2xxx_clkt_vps_init(void) +{ + struct clk_init_data init = { NULL }; + struct clk_hw_omap *hw = NULL; + struct clk *clk; + const char *parent_name = "mpu_ck"; + + omap2xxx_clkt_vps_late_init(); + omap2xxx_clkt_vps_check_bootloader_rates(); + + hw = kzalloc_obj(*hw); + if (!hw) + return; + init.name = "virt_prcm_set"; + init.ops = &virt_prcm_set_ops; + init.parent_names = &parent_name; + init.num_parents = 1; + + hw->hw.init = &init; + + clk = clk_register(NULL, &hw->hw); + if (IS_ERR(clk)) { + printk(KERN_ERR "Failed to register clock\n"); + kfree(hw); + return; + } + + clkdev_create(clk, "cpufreq_ck", NULL); +} +#endif diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c new file mode 100644 index 000000000..83fae5172 --- /dev/null +++ b/arch/arm/mach-omap2/clock.c @@ -0,0 +1,139 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/clock.c + * + * Copyright (C) 2005-2008 Texas Instruments, Inc. + * Copyright (C) 2004-2010 Nokia Corporation + * + * Contacts: + * Richard Woodruff <r-woodruff2@ti.com> + * Paul Walmsley + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/export.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/bitops.h> +#include <linux/of_address.h> +#include <asm/cpu.h> + +#include <trace/events/power.h> + +#include "soc.h" +#include "clockdomain.h" +#include "clock.h" +#include "cm.h" +#include "cm2xxx.h" +#include "cm3xxx.h" +#include "cm-regbits-24xx.h" +#include "cm-regbits-34xx.h" +#include "common.h" + +/* DPLL valid Fint frequency band limits - from 34xx TRM Section 4.7.6.2 */ +#define OMAP3430_DPLL_FINT_BAND1_MIN 750000 +#define OMAP3430_DPLL_FINT_BAND1_MAX 2100000 +#define OMAP3430_DPLL_FINT_BAND2_MIN 7500000 +#define OMAP3430_DPLL_FINT_BAND2_MAX 21000000 + +/* + * DPLL valid Fint frequency range for OMAP36xx and OMAP4xxx. + * From device data manual section 4.3 "DPLL and DLL Specifications". + */ +#define OMAP3PLUS_DPLL_FINT_MIN 32000 +#define OMAP3PLUS_DPLL_FINT_MAX 52000000 + +struct ti_clk_ll_ops omap_clk_ll_ops = { + .clkdm_clk_enable = clkdm_clk_enable, + .clkdm_clk_disable = clkdm_clk_disable, + .clkdm_lookup = clkdm_lookup, + .cm_wait_module_ready = omap_cm_wait_module_ready, + .cm_split_idlest_reg = cm_split_idlest_reg, +}; + +/** + * omap2_clk_setup_ll_ops - setup clock driver low-level ops + * + * Sets up clock driver low-level platform ops. These are needed + * for register accesses and various other misc platform operations. + * Returns 0 on success, -EBUSY if low level ops have been registered + * already. + */ +int __init omap2_clk_setup_ll_ops(void) +{ + return ti_clk_setup_ll_ops(&omap_clk_ll_ops); +} + +/* + * OMAP2+ specific clock functions + */ + +/** + * ti_clk_init_features - init clock features struct for the SoC + * + * Initializes the clock features struct based on the SoC type. + */ +void __init ti_clk_init_features(void) +{ + struct ti_clk_features features = { 0 }; + /* Fint setup for DPLLs */ + if (cpu_is_omap3430()) { + features.fint_min = OMAP3430_DPLL_FINT_BAND1_MIN; + features.fint_max = OMAP3430_DPLL_FINT_BAND2_MAX; + features.fint_band1_max = OMAP3430_DPLL_FINT_BAND1_MAX; + features.fint_band2_min = OMAP3430_DPLL_FINT_BAND2_MIN; + } else { + features.fint_min = OMAP3PLUS_DPLL_FINT_MIN; + features.fint_max = OMAP3PLUS_DPLL_FINT_MAX; + } + + /* Bypass value setup for DPLLs */ + if (cpu_is_omap24xx()) { + features.dpll_bypass_vals |= + (1 << OMAP2XXX_EN_DPLL_LPBYPASS) | + (1 << OMAP2XXX_EN_DPLL_FRBYPASS); + } else if (cpu_is_omap34xx()) { + features.dpll_bypass_vals |= + (1 << OMAP3XXX_EN_DPLL_LPBYPASS) | + (1 << OMAP3XXX_EN_DPLL_FRBYPASS); + } else if (soc_is_am33xx() || cpu_is_omap44xx() || soc_is_am43xx() || + soc_is_omap54xx() || soc_is_dra7xx()) { + features.dpll_bypass_vals |= + (1 << OMAP4XXX_EN_DPLL_LPBYPASS) | + (1 << OMAP4XXX_EN_DPLL_FRBYPASS) | + (1 << OMAP4XXX_EN_DPLL_MNBYPASS); + } + + /* Jitter correction only available on OMAP343X */ + if (cpu_is_omap343x()) + features.flags |= TI_CLK_DPLL_HAS_FREQSEL; + + if (omap_type() == OMAP2_DEVICE_TYPE_GP) + features.flags |= TI_CLK_DEVICE_TYPE_GP; + + /* Idlest value for interface clocks. + * 24xx uses 0 to indicate not ready, and 1 to indicate ready. + * 34xx reverses this, just to keep us on our toes + * AM35xx uses both, depending on the module. + */ + if (cpu_is_omap24xx()) + features.cm_idlest_val = OMAP24XX_CM_IDLEST_VAL; + else if (cpu_is_omap34xx()) + features.cm_idlest_val = OMAP34XX_CM_IDLEST_VAL; + + /* On OMAP3430 ES1.0, DPLL4 can't be re-programmed */ + if (omap_rev() == OMAP3430_REV_ES1_0) + features.flags |= TI_CLK_DPLL4_DENY_REPROGRAM; + + /* Errata I810 for omap5 / dra7 */ + if (soc_is_omap54xx() || soc_is_dra7xx()) + features.flags |= TI_CLK_ERRATA_I810; + + ti_clk_setup_features(&features); +} diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h new file mode 100644 index 000000000..41391fa14 --- /dev/null +++ b/arch/arm/mach-omap2/clock.h @@ -0,0 +1,69 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * linux/arch/arm/mach-omap2/clock.h + * + * Copyright (C) 2005-2009 Texas Instruments, Inc. + * Copyright (C) 2004-2011 Nokia Corporation + * + * Contacts: + * Richard Woodruff <r-woodruff2@ti.com> + * Paul Walmsley + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H +#define __ARCH_ARM_MACH_OMAP2_CLOCK_H + +#include <linux/kernel.h> +#include <linux/list.h> + +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/clk/ti.h> + +/* struct clksel_rate.flags possibilities */ +#define RATE_IN_242X (1 << 0) +#define RATE_IN_243X (1 << 1) +#define RATE_IN_3430ES1 (1 << 2) /* 3430ES1 rates only */ +#define RATE_IN_3430ES2PLUS (1 << 3) /* 3430 ES >= 2 rates only */ +#define RATE_IN_36XX (1 << 4) +#define RATE_IN_4430 (1 << 5) +#define RATE_IN_TI816X (1 << 6) +#define RATE_IN_4460 (1 << 7) +#define RATE_IN_AM33XX (1 << 8) +#define RATE_IN_TI814X (1 << 9) + +#define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X) +#define RATE_IN_34XX (RATE_IN_3430ES1 | RATE_IN_3430ES2PLUS) +#define RATE_IN_3XXX (RATE_IN_34XX | RATE_IN_36XX) +#define RATE_IN_44XX (RATE_IN_4430 | RATE_IN_4460) + +/* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */ +#define RATE_IN_3430ES2PLUS_36XX (RATE_IN_3430ES2PLUS | RATE_IN_36XX) + +/* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */ +#define CORE_CLK_SRC_32K 0x0 +#define CORE_CLK_SRC_DPLL 0x1 +#define CORE_CLK_SRC_DPLL_X2 0x2 + +/* OMAP2xxx CM_CLKEN_PLL.EN_DPLL bits - for omap2_get_dpll_rate() */ +#define OMAP2XXX_EN_DPLL_LPBYPASS 0x1 +#define OMAP2XXX_EN_DPLL_FRBYPASS 0x2 +#define OMAP2XXX_EN_DPLL_LOCKED 0x3 + +/* OMAP3xxx CM_CLKEN_PLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */ +#define OMAP3XXX_EN_DPLL_LPBYPASS 0x5 +#define OMAP3XXX_EN_DPLL_FRBYPASS 0x6 +#define OMAP3XXX_EN_DPLL_LOCKED 0x7 + +/* OMAP4xxx CM_CLKMODE_DPLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */ +#define OMAP4XXX_EN_DPLL_MNBYPASS 0x4 +#define OMAP4XXX_EN_DPLL_LPBYPASS 0x5 +#define OMAP4XXX_EN_DPLL_FRBYPASS 0x6 +#define OMAP4XXX_EN_DPLL_LOCKED 0x7 + +extern struct ti_clk_ll_ops omap_clk_ll_ops; + +int __init omap2_clk_setup_ll_ops(void); + +void __init ti_clk_init_features(void); +#endif diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h new file mode 100644 index 000000000..73c011dad --- /dev/null +++ b/arch/arm/mach-omap2/clock2xxx.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * OMAP2 clock function prototypes and macros + * + * Copyright (C) 2005-2010 Texas Instruments, Inc. + * Copyright (C) 2004-2010 Nokia Corporation + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK2XXX_H +#define __ARCH_ARM_MACH_OMAP2_CLOCK2XXX_H + +#include <linux/clk-provider.h> +#include "clock.h" + +unsigned long omap2xxx_clk_get_core_rate(void); + +#endif diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c new file mode 100644 index 000000000..69dc5b839 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomain.c @@ -0,0 +1,1301 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2/3/4 clockdomain framework functions + * + * Copyright (C) 2008-2011 Texas Instruments, Inc. + * Copyright (C) 2008-2011 Nokia Corporation + * + * Written by Paul Walmsley and Jouni Högander + * Added OMAP4 specific support by Abhijit Pagare <abhijitpagare@ti.com> + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/limits.h> +#include <linux/err.h> +#include <linux/clk-provider.h> +#include <linux/cpu_pm.h> + +#include <linux/io.h> + +#include <linux/bitops.h> + +#include "soc.h" +#include "clock.h" +#include "clockdomain.h" +#include "pm.h" + +/* clkdm_list contains all registered struct clockdomains */ +static LIST_HEAD(clkdm_list); + +/* array of clockdomain deps to be added/removed when clkdm in hwsup mode */ +static struct clkdm_autodep *autodeps; + +static struct clkdm_ops *arch_clkdm; +void clkdm_save_context(void); +void clkdm_restore_context(void); + +/* Private functions */ + +static struct clockdomain *_clkdm_lookup(const char *name) +{ + struct clockdomain *clkdm, *temp_clkdm; + + if (!name) + return NULL; + + clkdm = NULL; + + list_for_each_entry(temp_clkdm, &clkdm_list, node) { + if (!strcmp(name, temp_clkdm->name)) { + clkdm = temp_clkdm; + break; + } + } + + return clkdm; +} + +/** + * _clkdm_register - register a clockdomain + * @clkdm: struct clockdomain * to register + * + * Adds a clockdomain to the internal clockdomain list. + * Returns -EINVAL if given a null pointer, -EEXIST if a clockdomain is + * already registered by the provided name, or 0 upon success. + */ +static int _clkdm_register(struct clockdomain *clkdm) +{ + struct powerdomain *pwrdm; + + if (!clkdm || !clkdm->name) + return -EINVAL; + + pwrdm = pwrdm_lookup(clkdm->pwrdm.name); + if (!pwrdm) { + pr_err("clockdomain: %s: powerdomain %s does not exist\n", + clkdm->name, clkdm->pwrdm.name); + return -EINVAL; + } + clkdm->pwrdm.ptr = pwrdm; + + /* Verify that the clockdomain is not already registered */ + if (_clkdm_lookup(clkdm->name)) + return -EEXIST; + + list_add(&clkdm->node, &clkdm_list); + + pwrdm_add_clkdm(pwrdm, clkdm); + + pr_debug("clockdomain: registered %s\n", clkdm->name); + + return 0; +} + +/* _clkdm_deps_lookup - look up the specified clockdomain in a clkdm list */ +static struct clkdm_dep *_clkdm_deps_lookup(struct clockdomain *clkdm, + struct clkdm_dep *deps) +{ + struct clkdm_dep *cd; + + if (!clkdm || !deps) + return ERR_PTR(-EINVAL); + + for (cd = deps; cd->clkdm_name; cd++) { + if (!cd->clkdm && cd->clkdm_name) + cd->clkdm = _clkdm_lookup(cd->clkdm_name); + + if (cd->clkdm == clkdm) + break; + } + + if (!cd->clkdm_name) + return ERR_PTR(-ENOENT); + + return cd; +} + +/** + * _autodep_lookup - resolve autodep clkdm names to clkdm pointers; store + * @autodep: struct clkdm_autodep * to resolve + * + * Resolve autodep clockdomain names to clockdomain pointers via + * clkdm_lookup() and store the pointers in the autodep structure. An + * "autodep" is a clockdomain sleep/wakeup dependency that is + * automatically added and removed whenever clocks in the associated + * clockdomain are enabled or disabled (respectively) when the + * clockdomain is in hardware-supervised mode. Meant to be called + * once at clockdomain layer initialization, since these should remain + * fixed for a particular architecture. No return value. + * + * XXX autodeps are deprecated and should be removed at the earliest + * opportunity + */ +static void _autodep_lookup(struct clkdm_autodep *autodep) +{ + struct clockdomain *clkdm; + + if (!autodep) + return; + + clkdm = clkdm_lookup(autodep->clkdm.name); + if (!clkdm) { + pr_err("clockdomain: autodeps: clockdomain %s does not exist\n", + autodep->clkdm.name); + clkdm = ERR_PTR(-ENOENT); + } + autodep->clkdm.ptr = clkdm; +} + +/** + * _resolve_clkdm_deps() - resolve clkdm_names in @clkdm_deps to clkdms + * @clkdm: clockdomain that we are resolving dependencies for + * @clkdm_deps: ptr to array of struct clkdm_deps to resolve + * + * Iterates through @clkdm_deps, looking up the struct clockdomain named by + * clkdm_name and storing the clockdomain pointer in the struct clkdm_dep. + * No return value. + */ +static void _resolve_clkdm_deps(struct clockdomain *clkdm, + struct clkdm_dep *clkdm_deps) +{ + struct clkdm_dep *cd; + + for (cd = clkdm_deps; cd && cd->clkdm_name; cd++) { + if (cd->clkdm) + continue; + cd->clkdm = _clkdm_lookup(cd->clkdm_name); + + WARN(!cd->clkdm, "clockdomain: %s: could not find clkdm %s while resolving dependencies - should never happen", + clkdm->name, cd->clkdm_name); + } +} + +/** + * _clkdm_add_wkdep - add a wakeup dependency from clkdm2 to clkdm1 (lockless) + * @clkdm1: wake this struct clockdomain * up (dependent) + * @clkdm2: when this struct clockdomain * wakes up (source) + * + * When the clockdomain represented by @clkdm2 wakes up, wake up + * @clkdm1. Implemented in hardware on the OMAP, this feature is + * designed to reduce wakeup latency of the dependent clockdomain @clkdm1. + * Returns -EINVAL if presented with invalid clockdomain pointers, + * -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or 0 upon + * success. + */ +static int _clkdm_add_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret = 0; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); + if (IS_ERR(cd)) + ret = PTR_ERR(cd); + + if (!arch_clkdm || !arch_clkdm->clkdm_add_wkdep) + ret = -EINVAL; + + if (ret) { + pr_debug("clockdomain: hardware cannot set/clear wake up of %s when %s wakes up\n", + clkdm1->name, clkdm2->name); + return ret; + } + + cd->wkdep_usecount++; + if (cd->wkdep_usecount == 1) { + pr_debug("clockdomain: hardware will wake up %s when %s wakes up\n", + clkdm1->name, clkdm2->name); + + ret = arch_clkdm->clkdm_add_wkdep(clkdm1, clkdm2); + } + + return ret; +} + +/** + * _clkdm_del_wkdep - remove a wakeup dep from clkdm2 to clkdm1 (lockless) + * @clkdm1: wake this struct clockdomain * up (dependent) + * @clkdm2: when this struct clockdomain * wakes up (source) + * + * Remove a wakeup dependency causing @clkdm1 to wake up when @clkdm2 + * wakes up. Returns -EINVAL if presented with invalid clockdomain + * pointers, -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or + * 0 upon success. + */ +static int _clkdm_del_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret = 0; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); + if (IS_ERR(cd)) + ret = PTR_ERR(cd); + + if (!arch_clkdm || !arch_clkdm->clkdm_del_wkdep) + ret = -EINVAL; + + if (ret) { + pr_debug("clockdomain: hardware cannot set/clear wake up of %s when %s wakes up\n", + clkdm1->name, clkdm2->name); + return ret; + } + + cd->wkdep_usecount--; + if (cd->wkdep_usecount == 0) { + pr_debug("clockdomain: hardware will no longer wake up %s after %s wakes up\n", + clkdm1->name, clkdm2->name); + + ret = arch_clkdm->clkdm_del_wkdep(clkdm1, clkdm2); + } + + return ret; +} + +/** + * _clkdm_add_sleepdep - add a sleep dependency from clkdm2 to clkdm1 (lockless) + * @clkdm1: prevent this struct clockdomain * from sleeping (dependent) + * @clkdm2: when this struct clockdomain * is active (source) + * + * Prevent @clkdm1 from automatically going inactive (and then to + * retention or off) if @clkdm2 is active. Returns -EINVAL if + * presented with invalid clockdomain pointers or called on a machine + * that does not support software-configurable hardware sleep + * dependencies, -ENOENT if the specified dependency cannot be set in + * hardware, or 0 upon success. + */ +static int _clkdm_add_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret = 0; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs); + if (IS_ERR(cd)) + ret = PTR_ERR(cd); + + if (!arch_clkdm || !arch_clkdm->clkdm_add_sleepdep) + ret = -EINVAL; + + if (ret) { + pr_debug("clockdomain: hardware cannot set/clear sleep dependency affecting %s from %s\n", + clkdm1->name, clkdm2->name); + return ret; + } + + cd->sleepdep_usecount++; + if (cd->sleepdep_usecount == 1) { + pr_debug("clockdomain: will prevent %s from sleeping if %s is active\n", + clkdm1->name, clkdm2->name); + + ret = arch_clkdm->clkdm_add_sleepdep(clkdm1, clkdm2); + } + + return ret; +} + +/** + * _clkdm_del_sleepdep - remove a sleep dep from clkdm2 to clkdm1 (lockless) + * @clkdm1: prevent this struct clockdomain * from sleeping (dependent) + * @clkdm2: when this struct clockdomain * is active (source) + * + * Allow @clkdm1 to automatically go inactive (and then to retention or + * off), independent of the activity state of @clkdm2. Returns -EINVAL + * if presented with invalid clockdomain pointers or called on a machine + * that does not support software-configurable hardware sleep dependencies, + * -ENOENT if the specified dependency cannot be cleared in hardware, or + * 0 upon success. + */ +static int _clkdm_del_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret = 0; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs); + if (IS_ERR(cd)) + ret = PTR_ERR(cd); + + if (!arch_clkdm || !arch_clkdm->clkdm_del_sleepdep) + ret = -EINVAL; + + if (ret) { + pr_debug("clockdomain: hardware cannot set/clear sleep dependency affecting %s from %s\n", + clkdm1->name, clkdm2->name); + return ret; + } + + cd->sleepdep_usecount--; + if (cd->sleepdep_usecount == 0) { + pr_debug("clockdomain: will no longer prevent %s from sleeping if %s is active\n", + clkdm1->name, clkdm2->name); + + ret = arch_clkdm->clkdm_del_sleepdep(clkdm1, clkdm2); + } + + return ret; +} + +/* Public functions */ + +/** + * clkdm_register_platform_funcs - register clockdomain implementation fns + * @co: func pointers for arch specific implementations + * + * Register the list of function pointers used to implement the + * clockdomain functions on different OMAP SoCs. Should be called + * before any other clkdm_register*() function. Returns -EINVAL if + * @co is null, -EEXIST if platform functions have already been + * registered, or 0 upon success. + */ +int clkdm_register_platform_funcs(struct clkdm_ops *co) +{ + if (!co) + return -EINVAL; + + if (arch_clkdm) + return -EEXIST; + + arch_clkdm = co; + + return 0; +}; + +/** + * clkdm_register_clkdms - register SoC clockdomains + * @cs: pointer to an array of struct clockdomain to register + * + * Register the clockdomains available on a particular OMAP SoC. Must + * be called after clkdm_register_platform_funcs(). May be called + * multiple times. Returns -EACCES if called before + * clkdm_register_platform_funcs(); -EINVAL if the argument @cs is + * null; or 0 upon success. + */ +int clkdm_register_clkdms(struct clockdomain **cs) +{ + struct clockdomain **c = NULL; + + if (!arch_clkdm) + return -EACCES; + + if (!cs) + return -EINVAL; + + for (c = cs; *c; c++) + _clkdm_register(*c); + + return 0; +} + +/** + * clkdm_register_autodeps - register autodeps (if required) + * @ia: pointer to a static array of struct clkdm_autodep to register + * + * Register clockdomain "automatic dependencies." These are + * clockdomain wakeup and sleep dependencies that are automatically + * added whenever the first clock inside a clockdomain is enabled, and + * removed whenever the last clock inside a clockdomain is disabled. + * These are currently only used on OMAP3 devices, and are deprecated, + * since they waste energy. However, until the OMAP2/3 IP block + * enable/disable sequence can be converted to match the OMAP4 + * sequence, they are needed. + * + * Must be called only after all of the SoC clockdomains are + * registered, since the function will resolve autodep clockdomain + * names into clockdomain pointers. + * + * The struct clkdm_autodep @ia array must be static, as this function + * does not copy the array elements. + * + * Returns -EACCES if called before any clockdomains have been + * registered, -EINVAL if called with a null @ia argument, -EEXIST if + * autodeps have already been registered, or 0 upon success. + */ +int clkdm_register_autodeps(struct clkdm_autodep *ia) +{ + struct clkdm_autodep *a = NULL; + + if (list_empty(&clkdm_list)) + return -EACCES; + + if (!ia) + return -EINVAL; + + if (autodeps) + return -EEXIST; + + autodeps = ia; + for (a = autodeps; a->clkdm.ptr; a++) + _autodep_lookup(a); + + return 0; +} + +static int cpu_notifier(struct notifier_block *nb, unsigned long cmd, void *v) +{ + switch (cmd) { + case CPU_CLUSTER_PM_ENTER: + if (enable_off_mode) + clkdm_save_context(); + break; + case CPU_CLUSTER_PM_EXIT: + if (enable_off_mode) + clkdm_restore_context(); + break; + } + + return NOTIFY_OK; +} + +/** + * clkdm_complete_init - set up the clockdomain layer + * + * Put all clockdomains into software-supervised mode; PM code should + * later enable hardware-supervised mode as appropriate. Must be + * called after clkdm_register_clkdms(). Returns -EACCES if called + * before clkdm_register_clkdms(), or 0 upon success. + */ +int clkdm_complete_init(void) +{ + struct clockdomain *clkdm; + static struct notifier_block nb; + + if (list_empty(&clkdm_list)) + return -EACCES; + + list_for_each_entry(clkdm, &clkdm_list, node) { + clkdm_deny_idle(clkdm); + + _resolve_clkdm_deps(clkdm, clkdm->wkdep_srcs); + clkdm_clear_all_wkdeps(clkdm); + + _resolve_clkdm_deps(clkdm, clkdm->sleepdep_srcs); + clkdm_clear_all_sleepdeps(clkdm); + } + + /* Only AM43XX can lose clkdm context during rtc-ddr suspend */ + if (soc_is_am43xx()) { + nb.notifier_call = cpu_notifier; + cpu_pm_register_notifier(&nb); + } + + return 0; +} + +/** + * clkdm_lookup - look up a clockdomain by name, return a pointer + * @name: name of clockdomain + * + * Find a registered clockdomain by its name @name. Returns a pointer + * to the struct clockdomain if found, or NULL otherwise. + */ +struct clockdomain *clkdm_lookup(const char *name) +{ + struct clockdomain *clkdm, *temp_clkdm; + + if (!name) + return NULL; + + clkdm = NULL; + + list_for_each_entry(temp_clkdm, &clkdm_list, node) { + if (!strcmp(name, temp_clkdm->name)) { + clkdm = temp_clkdm; + break; + } + } + + return clkdm; +} + +/** + * clkdm_for_each - call function on each registered clockdomain + * @fn: callback function * + * + * Call the supplied function @fn for each registered clockdomain. + * The callback function @fn can return anything but 0 to bail + * out early from the iterator. The callback function is called with + * the clkdm_mutex held, so no clockdomain structure manipulation + * functions should be called from the callback, although hardware + * clockdomain control functions are fine. Returns the last return + * value of the callback function, which should be 0 for success or + * anything else to indicate failure; or -EINVAL if the function pointer + * is null. + */ +int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user), + void *user) +{ + struct clockdomain *clkdm; + int ret = 0; + + if (!fn) + return -EINVAL; + + list_for_each_entry(clkdm, &clkdm_list, node) { + ret = (*fn)(clkdm, user); + if (ret) + break; + } + + return ret; +} + + +/** + * clkdm_get_pwrdm - return a ptr to the pwrdm that this clkdm resides in + * @clkdm: struct clockdomain * + * + * Return a pointer to the struct powerdomain that the specified clockdomain + * @clkdm exists in, or returns NULL if @clkdm is NULL. + */ +struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm) +{ + if (!clkdm) + return NULL; + + return clkdm->pwrdm.ptr; +} + + +/* Hardware clockdomain control */ + +/** + * clkdm_add_wkdep - add a wakeup dependency from clkdm2 to clkdm1 + * @clkdm1: wake this struct clockdomain * up (dependent) + * @clkdm2: when this struct clockdomain * wakes up (source) + * + * When the clockdomain represented by @clkdm2 wakes up, wake up + * @clkdm1. Implemented in hardware on the OMAP, this feature is + * designed to reduce wakeup latency of the dependent clockdomain @clkdm1. + * Returns -EINVAL if presented with invalid clockdomain pointers, + * -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or 0 upon + * success. + */ +int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); + if (IS_ERR(cd)) + return PTR_ERR(cd); + + pwrdm_lock(cd->clkdm->pwrdm.ptr); + ret = _clkdm_add_wkdep(clkdm1, clkdm2); + pwrdm_unlock(cd->clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_del_wkdep - remove a wakeup dependency from clkdm2 to clkdm1 + * @clkdm1: wake this struct clockdomain * up (dependent) + * @clkdm2: when this struct clockdomain * wakes up (source) + * + * Remove a wakeup dependency causing @clkdm1 to wake up when @clkdm2 + * wakes up. Returns -EINVAL if presented with invalid clockdomain + * pointers, -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or + * 0 upon success. + */ +int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); + if (IS_ERR(cd)) + return PTR_ERR(cd); + + pwrdm_lock(cd->clkdm->pwrdm.ptr); + ret = _clkdm_del_wkdep(clkdm1, clkdm2); + pwrdm_unlock(cd->clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_read_wkdep - read wakeup dependency state from clkdm2 to clkdm1 + * @clkdm1: wake this struct clockdomain * up (dependent) + * @clkdm2: when this struct clockdomain * wakes up (source) + * + * Return 1 if a hardware wakeup dependency exists wherein @clkdm1 will be + * awoken when @clkdm2 wakes up; 0 if dependency is not set; -EINVAL + * if either clockdomain pointer is invalid; or -ENOENT if the hardware + * is incapable. + * + * REVISIT: Currently this function only represents software-controllable + * wakeup dependencies. Wakeup dependencies fixed in hardware are not + * yet handled here. + */ +int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret = 0; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); + if (IS_ERR(cd)) + ret = PTR_ERR(cd); + + if (!arch_clkdm || !arch_clkdm->clkdm_read_wkdep) + ret = -EINVAL; + + if (ret) { + pr_debug("clockdomain: hardware cannot set/clear wake up of %s when %s wakes up\n", + clkdm1->name, clkdm2->name); + return ret; + } + + /* XXX It's faster to return the wkdep_usecount */ + return arch_clkdm->clkdm_read_wkdep(clkdm1, clkdm2); +} + +/** + * clkdm_clear_all_wkdeps - remove all wakeup dependencies from target clkdm + * @clkdm: struct clockdomain * to remove all wakeup dependencies from + * + * Remove all inter-clockdomain wakeup dependencies that could cause + * @clkdm to wake. Intended to be used during boot to initialize the + * PRCM to a known state, after all clockdomains are put into swsup idle + * and woken up. Returns -EINVAL if @clkdm pointer is invalid, or + * 0 upon success. + */ +int clkdm_clear_all_wkdeps(struct clockdomain *clkdm) +{ + if (!clkdm) + return -EINVAL; + + if (!arch_clkdm || !arch_clkdm->clkdm_clear_all_wkdeps) + return -EINVAL; + + return arch_clkdm->clkdm_clear_all_wkdeps(clkdm); +} + +/** + * clkdm_add_sleepdep - add a sleep dependency from clkdm2 to clkdm1 + * @clkdm1: prevent this struct clockdomain * from sleeping (dependent) + * @clkdm2: when this struct clockdomain * is active (source) + * + * Prevent @clkdm1 from automatically going inactive (and then to + * retention or off) if @clkdm2 is active. Returns -EINVAL if + * presented with invalid clockdomain pointers or called on a machine + * that does not support software-configurable hardware sleep + * dependencies, -ENOENT if the specified dependency cannot be set in + * hardware, or 0 upon success. + */ +int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); + if (IS_ERR(cd)) + return PTR_ERR(cd); + + pwrdm_lock(cd->clkdm->pwrdm.ptr); + ret = _clkdm_add_sleepdep(clkdm1, clkdm2); + pwrdm_unlock(cd->clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_del_sleepdep - remove a sleep dependency from clkdm2 to clkdm1 + * @clkdm1: prevent this struct clockdomain * from sleeping (dependent) + * @clkdm2: when this struct clockdomain * is active (source) + * + * Allow @clkdm1 to automatically go inactive (and then to retention or + * off), independent of the activity state of @clkdm2. Returns -EINVAL + * if presented with invalid clockdomain pointers or called on a machine + * that does not support software-configurable hardware sleep dependencies, + * -ENOENT if the specified dependency cannot be cleared in hardware, or + * 0 upon success. + */ +int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); + if (IS_ERR(cd)) + return PTR_ERR(cd); + + pwrdm_lock(cd->clkdm->pwrdm.ptr); + ret = _clkdm_del_sleepdep(clkdm1, clkdm2); + pwrdm_unlock(cd->clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_read_sleepdep - read sleep dependency state from clkdm2 to clkdm1 + * @clkdm1: prevent this struct clockdomain * from sleeping (dependent) + * @clkdm2: when this struct clockdomain * is active (source) + * + * Return 1 if a hardware sleep dependency exists wherein @clkdm1 will + * not be allowed to automatically go inactive if @clkdm2 is active; + * 0 if @clkdm1's automatic power state inactivity transition is independent + * of @clkdm2's; -EINVAL if either clockdomain pointer is invalid or called + * on a machine that does not support software-configurable hardware sleep + * dependencies; or -ENOENT if the hardware is incapable. + * + * REVISIT: Currently this function only represents software-controllable + * sleep dependencies. Sleep dependencies fixed in hardware are not + * yet handled here. + */ +int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) +{ + struct clkdm_dep *cd; + int ret = 0; + + if (!clkdm1 || !clkdm2) + return -EINVAL; + + cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs); + if (IS_ERR(cd)) + ret = PTR_ERR(cd); + + if (!arch_clkdm || !arch_clkdm->clkdm_read_sleepdep) + ret = -EINVAL; + + if (ret) { + pr_debug("clockdomain: hardware cannot set/clear sleep dependency affecting %s from %s\n", + clkdm1->name, clkdm2->name); + return ret; + } + + /* XXX It's faster to return the sleepdep_usecount */ + return arch_clkdm->clkdm_read_sleepdep(clkdm1, clkdm2); +} + +/** + * clkdm_clear_all_sleepdeps - remove all sleep dependencies from target clkdm + * @clkdm: struct clockdomain * to remove all sleep dependencies from + * + * Remove all inter-clockdomain sleep dependencies that could prevent + * @clkdm from idling. Intended to be used during boot to initialize the + * PRCM to a known state, after all clockdomains are put into swsup idle + * and woken up. Returns -EINVAL if @clkdm pointer is invalid, or + * 0 upon success. + */ +int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm) +{ + if (!clkdm) + return -EINVAL; + + if (!arch_clkdm || !arch_clkdm->clkdm_clear_all_sleepdeps) + return -EINVAL; + + return arch_clkdm->clkdm_clear_all_sleepdeps(clkdm); +} + +/** + * clkdm_sleep_nolock - force clockdomain sleep transition (lockless) + * @clkdm: struct clockdomain * + * + * Instruct the CM to force a sleep transition on the specified + * clockdomain @clkdm. Only for use by the powerdomain code. Returns + * -EINVAL if @clkdm is NULL or if clockdomain does not support + * software-initiated sleep; 0 upon success. + */ +static int clkdm_sleep_nolock(struct clockdomain *clkdm) +{ + int ret; + + if (!clkdm) + return -EINVAL; + + if (!(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { + pr_debug("clockdomain: %s does not support forcing sleep via software\n", + clkdm->name); + return -EINVAL; + } + + if (!arch_clkdm || !arch_clkdm->clkdm_sleep) + return -EINVAL; + + pr_debug("clockdomain: forcing sleep on %s\n", clkdm->name); + + clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED; + ret = arch_clkdm->clkdm_sleep(clkdm); + ret |= pwrdm_state_switch_nolock(clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_sleep - force clockdomain sleep transition + * @clkdm: struct clockdomain * + * + * Instruct the CM to force a sleep transition on the specified + * clockdomain @clkdm. Returns -EINVAL if @clkdm is NULL or if + * clockdomain does not support software-initiated sleep; 0 upon + * success. + */ +int clkdm_sleep(struct clockdomain *clkdm) +{ + int ret; + + pwrdm_lock(clkdm->pwrdm.ptr); + ret = clkdm_sleep_nolock(clkdm); + pwrdm_unlock(clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_wakeup_nolock - force clockdomain wakeup transition (lockless) + * @clkdm: struct clockdomain * + * + * Instruct the CM to force a wakeup transition on the specified + * clockdomain @clkdm. Only for use by the powerdomain code. Returns + * -EINVAL if @clkdm is NULL or if the clockdomain does not support + * software-controlled wakeup; 0 upon success. + */ +static int clkdm_wakeup_nolock(struct clockdomain *clkdm) +{ + int ret; + + if (!clkdm) + return -EINVAL; + + if (!(clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)) { + pr_debug("clockdomain: %s does not support forcing wakeup via software\n", + clkdm->name); + return -EINVAL; + } + + if (!arch_clkdm || !arch_clkdm->clkdm_wakeup) + return -EINVAL; + + pr_debug("clockdomain: forcing wakeup on %s\n", clkdm->name); + + clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED; + ret = arch_clkdm->clkdm_wakeup(clkdm); + ret |= pwrdm_state_switch_nolock(clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_wakeup - force clockdomain wakeup transition + * @clkdm: struct clockdomain * + * + * Instruct the CM to force a wakeup transition on the specified + * clockdomain @clkdm. Returns -EINVAL if @clkdm is NULL or if the + * clockdomain does not support software-controlled wakeup; 0 upon + * success. + */ +int clkdm_wakeup(struct clockdomain *clkdm) +{ + int ret; + + pwrdm_lock(clkdm->pwrdm.ptr); + ret = clkdm_wakeup_nolock(clkdm); + pwrdm_unlock(clkdm->pwrdm.ptr); + + return ret; +} + +/** + * clkdm_allow_idle_nolock - enable hwsup idle transitions for clkdm + * @clkdm: struct clockdomain * + * + * Allow the hardware to automatically switch the clockdomain @clkdm + * into active or idle states, as needed by downstream clocks. If the + * clockdomain has any downstream clocks enabled in the clock + * framework, wkdep/sleepdep autodependencies are added; this is so + * device drivers can read and write to the device. Only for use by + * the powerdomain code. No return value. + */ +void clkdm_allow_idle_nolock(struct clockdomain *clkdm) +{ + if (!clkdm) + return; + + if (!WARN_ON(!clkdm->forcewake_count)) + clkdm->forcewake_count--; + + if (clkdm->forcewake_count) + return; + + if (!clkdm->usecount && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) + clkdm_sleep_nolock(clkdm); + + if (!(clkdm->flags & CLKDM_CAN_ENABLE_AUTO)) + return; + + if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING) + return; + + if (!arch_clkdm || !arch_clkdm->clkdm_allow_idle) + return; + + pr_debug("clockdomain: enabling automatic idle transitions for %s\n", + clkdm->name); + + clkdm->_flags |= _CLKDM_FLAG_HWSUP_ENABLED; + arch_clkdm->clkdm_allow_idle(clkdm); + pwrdm_state_switch_nolock(clkdm->pwrdm.ptr); +} + +/** + * clkdm_allow_idle - enable hwsup idle transitions for clkdm + * @clkdm: struct clockdomain * + * + * Allow the hardware to automatically switch the clockdomain @clkdm into + * active or idle states, as needed by downstream clocks. If the + * clockdomain has any downstream clocks enabled in the clock + * framework, wkdep/sleepdep autodependencies are added; this is so + * device drivers can read and write to the device. No return value. + */ +void clkdm_allow_idle(struct clockdomain *clkdm) +{ + pwrdm_lock(clkdm->pwrdm.ptr); + clkdm_allow_idle_nolock(clkdm); + pwrdm_unlock(clkdm->pwrdm.ptr); +} + +/** + * clkdm_deny_idle_nolock - disable hwsup idle transitions for clkdm + * @clkdm: struct clockdomain * + * + * Prevent the hardware from automatically switching the clockdomain + * @clkdm into inactive or idle states. If the clockdomain has + * downstream clocks enabled in the clock framework, wkdep/sleepdep + * autodependencies are removed. Only for use by the powerdomain + * code. No return value. + */ +void clkdm_deny_idle_nolock(struct clockdomain *clkdm) +{ + if (!clkdm) + return; + + if (clkdm->forcewake_count++) + return; + + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + clkdm_wakeup_nolock(clkdm); + + if (!(clkdm->flags & CLKDM_CAN_DISABLE_AUTO)) + return; + + if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING) + return; + + if (!arch_clkdm || !arch_clkdm->clkdm_deny_idle) + return; + + pr_debug("clockdomain: disabling automatic idle transitions for %s\n", + clkdm->name); + + clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED; + arch_clkdm->clkdm_deny_idle(clkdm); + pwrdm_state_switch_nolock(clkdm->pwrdm.ptr); +} + +/** + * clkdm_deny_idle - disable hwsup idle transitions for clkdm + * @clkdm: struct clockdomain * + * + * Prevent the hardware from automatically switching the clockdomain + * @clkdm into inactive or idle states. If the clockdomain has + * downstream clocks enabled in the clock framework, wkdep/sleepdep + * autodependencies are removed. No return value. + */ +void clkdm_deny_idle(struct clockdomain *clkdm) +{ + pwrdm_lock(clkdm->pwrdm.ptr); + clkdm_deny_idle_nolock(clkdm); + pwrdm_unlock(clkdm->pwrdm.ptr); +} + +/* Public autodep handling functions (deprecated) */ + +/** + * clkdm_add_autodeps - add auto sleepdeps/wkdeps to clkdm upon clock enable + * @clkdm: struct clockdomain * + * + * Add the "autodep" sleep & wakeup dependencies to clockdomain 'clkdm' + * in hardware-supervised mode. Meant to be called from clock framework + * when a clock inside clockdomain 'clkdm' is enabled. No return value. + * + * XXX autodeps are deprecated and should be removed at the earliest + * opportunity + */ +void clkdm_add_autodeps(struct clockdomain *clkdm) +{ + struct clkdm_autodep *autodep; + + if (!autodeps || clkdm->flags & CLKDM_NO_AUTODEPS) + return; + + for (autodep = autodeps; autodep->clkdm.ptr; autodep++) { + if (IS_ERR(autodep->clkdm.ptr)) + continue; + + pr_debug("clockdomain: %s: adding %s sleepdep/wkdep\n", + clkdm->name, autodep->clkdm.ptr->name); + + _clkdm_add_sleepdep(clkdm, autodep->clkdm.ptr); + _clkdm_add_wkdep(clkdm, autodep->clkdm.ptr); + } +} + +/** + * clkdm_del_autodeps - remove auto sleepdeps/wkdeps from clkdm + * @clkdm: struct clockdomain * + * + * Remove the "autodep" sleep & wakeup dependencies from clockdomain 'clkdm' + * in hardware-supervised mode. Meant to be called from clock framework + * when a clock inside clockdomain 'clkdm' is disabled. No return value. + * + * XXX autodeps are deprecated and should be removed at the earliest + * opportunity + */ +void clkdm_del_autodeps(struct clockdomain *clkdm) +{ + struct clkdm_autodep *autodep; + + if (!autodeps || clkdm->flags & CLKDM_NO_AUTODEPS) + return; + + for (autodep = autodeps; autodep->clkdm.ptr; autodep++) { + if (IS_ERR(autodep->clkdm.ptr)) + continue; + + pr_debug("clockdomain: %s: removing %s sleepdep/wkdep\n", + clkdm->name, autodep->clkdm.ptr->name); + + _clkdm_del_sleepdep(clkdm, autodep->clkdm.ptr); + _clkdm_del_wkdep(clkdm, autodep->clkdm.ptr); + } +} + +/* Clockdomain-to-clock/hwmod framework interface code */ + +/** + * clkdm_clk_enable - add an enabled downstream clock to this clkdm + * @clkdm: struct clockdomain * + * @unused: struct clk * of the enabled downstream clock + * + * Increment the usecount of the clockdomain @clkdm and ensure that it + * is awake before @clk is enabled. Intended to be called by + * clk_enable() code. If the clockdomain is in software-supervised + * idle mode, force the clockdomain to wake. If the clockdomain is in + * hardware-supervised idle mode, add clkdm-pwrdm autodependencies, to + * ensure that devices in the clockdomain can be read from/written to + * by on-chip processors. Returns -EINVAL if passed null pointers; + * returns 0 upon success or if the clockdomain is in hwsup idle mode. + */ +int clkdm_clk_enable(struct clockdomain *clkdm, struct clk *unused) +{ + if (!clkdm || !arch_clkdm || !arch_clkdm->clkdm_clk_enable) + return -EINVAL; + + pwrdm_lock(clkdm->pwrdm.ptr); + + /* + * For arch's with no autodeps, clkcm_clk_enable + * should be called for every clock instance or hwmod that is + * enabled, so the clkdm can be force woken up. + */ + clkdm->usecount++; + if (clkdm->usecount > 1 && autodeps) { + pwrdm_unlock(clkdm->pwrdm.ptr); + return 0; + } + + arch_clkdm->clkdm_clk_enable(clkdm); + pwrdm_state_switch_nolock(clkdm->pwrdm.ptr); + pwrdm_unlock(clkdm->pwrdm.ptr); + + pr_debug("clockdomain: %s: enabled\n", clkdm->name); + + return 0; +} + +/** + * clkdm_clk_disable - remove an enabled downstream clock from this clkdm + * @clkdm: struct clockdomain * + * @clk: struct clk * of the disabled downstream clock + * + * Decrement the usecount of this clockdomain @clkdm when @clk is + * disabled. Intended to be called by clk_disable() code. If the + * clockdomain usecount goes to 0, put the clockdomain to sleep + * (software-supervised mode) or remove the clkdm autodependencies + * (hardware-supervised mode). Returns -EINVAL if passed null + * pointers; -ERANGE if the @clkdm usecount underflows; or returns 0 + * upon success or if the clockdomain is in hwsup idle mode. + */ +int clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk) +{ + if (!clkdm || !arch_clkdm || !arch_clkdm->clkdm_clk_disable) + return -EINVAL; + + pwrdm_lock(clkdm->pwrdm.ptr); + + /* corner case: disabling unused clocks */ + if (clk && (__clk_get_enable_count(clk) == 0) && clkdm->usecount == 0) + goto ccd_exit; + + if (clkdm->usecount == 0) { + pwrdm_unlock(clkdm->pwrdm.ptr); + WARN_ON(1); /* underflow */ + return -ERANGE; + } + + clkdm->usecount--; + if (clkdm->usecount > 0) { + pwrdm_unlock(clkdm->pwrdm.ptr); + return 0; + } + + arch_clkdm->clkdm_clk_disable(clkdm); + pwrdm_state_switch_nolock(clkdm->pwrdm.ptr); + + pr_debug("clockdomain: %s: disabled\n", clkdm->name); + +ccd_exit: + pwrdm_unlock(clkdm->pwrdm.ptr); + + return 0; +} + +/** + * clkdm_hwmod_enable - add an enabled downstream hwmod to this clkdm + * @clkdm: struct clockdomain * + * @oh: struct omap_hwmod * of the enabled downstream hwmod + * + * Increment the usecount of the clockdomain @clkdm and ensure that it + * is awake before @oh is enabled. Intended to be called by + * module_enable() code. + * If the clockdomain is in software-supervised idle mode, force the + * clockdomain to wake. If the clockdomain is in hardware-supervised idle + * mode, add clkdm-pwrdm autodependencies, to ensure that devices in the + * clockdomain can be read from/written to by on-chip processors. + * Returns -EINVAL if passed null pointers; + * returns 0 upon success or if the clockdomain is in hwsup idle mode. + */ +int clkdm_hwmod_enable(struct clockdomain *clkdm, struct omap_hwmod *oh) +{ + /* The clkdm attribute does not exist yet prior OMAP4 */ + if (cpu_is_omap24xx() || cpu_is_omap34xx()) + return 0; + + /* + * XXX Rewrite this code to maintain a list of enabled + * downstream hwmods for debugging purposes? + */ + + if (!oh) + return -EINVAL; + + return clkdm_clk_enable(clkdm, NULL); +} + +/** + * clkdm_hwmod_disable - remove an enabled downstream hwmod from this clkdm + * @clkdm: struct clockdomain * + * @oh: struct omap_hwmod * of the disabled downstream hwmod + * + * Decrement the usecount of this clockdomain @clkdm when @oh is + * disabled. Intended to be called by module_disable() code. + * If the clockdomain usecount goes to 0, put the clockdomain to sleep + * (software-supervised mode) or remove the clkdm autodependencies + * (hardware-supervised mode). + * Returns -EINVAL if passed null pointers; -ERANGE if the @clkdm usecount + * underflows; or returns 0 upon success or if the clockdomain is in hwsup + * idle mode. + */ +int clkdm_hwmod_disable(struct clockdomain *clkdm, struct omap_hwmod *oh) +{ + /* The clkdm attribute does not exist yet prior OMAP4 */ + if (cpu_is_omap24xx() || cpu_is_omap34xx()) + return 0; + + if (!oh) + return -EINVAL; + + return clkdm_clk_disable(clkdm, NULL); +} + +/** + * _clkdm_save_context - save the context for the control of this clkdm + * + * Due to a suspend or hibernation operation, the state of the registers + * controlling this clkdm will be lost, save their context. + */ +static int _clkdm_save_context(struct clockdomain *clkdm, void *unused) +{ + if (!arch_clkdm || !arch_clkdm->clkdm_save_context) + return -EINVAL; + + return arch_clkdm->clkdm_save_context(clkdm); +} + +/** + * _clkdm_restore_context - restore context for control of this clkdm + * + * Restore the register values for this clockdomain. + */ +static int _clkdm_restore_context(struct clockdomain *clkdm, void *unused) +{ + if (!arch_clkdm || !arch_clkdm->clkdm_restore_context) + return -EINVAL; + + return arch_clkdm->clkdm_restore_context(clkdm); +} + +/** + * clkdm_save_context - Saves the context for each registered clkdm + * + * Save the context for each registered clockdomain. + */ +void clkdm_save_context(void) +{ + clkdm_for_each(_clkdm_save_context, NULL); +} + +/** + * clkdm_restore_context - Restores the context for each registered clkdm + * + * Restore the context for each registered clockdomain. + */ +void clkdm_restore_context(void) +{ + clkdm_for_each(_clkdm_restore_context, NULL); +} diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h new file mode 100644 index 000000000..86a2f9e5d --- /dev/null +++ b/arch/arm/mach-omap2/clockdomain.h @@ -0,0 +1,243 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2/3 clockdomain framework functions + * + * Copyright (C) 2008, 2012 Texas Instruments, Inc. + * Copyright (C) 2008-2011 Nokia Corporation + * + * Paul Walmsley + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CLOCKDOMAIN_H +#define __ARCH_ARM_MACH_OMAP2_CLOCKDOMAIN_H + +#include <linux/init.h> + +#include "powerdomain.h" +#include "clock.h" + +/* + * Clockdomain flags + * + * XXX Document CLKDM_CAN_* flags + * + * CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this + * clockdomain. (Currently, this applies to OMAP3 clockdomains only.) + * CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is + * active whenever the MPU is active. True for interconnects and + * the WKUP clockdomains. + * CLKDM_MISSING_IDLE_REPORTING: The idle status of the IP blocks and + * clocks inside this clockdomain are not taken into account by + * the PRCM when determining whether the clockdomain is idle. + * Without this flag, if the clockdomain is set to + * hardware-supervised idle mode, the PRCM may transition the + * enclosing powerdomain to a low power state, even when devices + * inside the clockdomain and powerdomain are in use. (An example + * of such a clockdomain is the EMU clockdomain on OMAP3/4.) If + * this flag is set, and the clockdomain does not support the + * force-sleep mode, then the HW_AUTO mode will be used to put the + * clockdomain to sleep. Similarly, if the clockdomain supports + * the force-wakeup mode, then it will be used whenever a clock or + * IP block inside the clockdomain is active, rather than the + * HW_AUTO mode. + */ +#define CLKDM_CAN_FORCE_SLEEP (1 << 0) +#define CLKDM_CAN_FORCE_WAKEUP (1 << 1) +#define CLKDM_CAN_ENABLE_AUTO (1 << 2) +#define CLKDM_CAN_DISABLE_AUTO (1 << 3) +#define CLKDM_NO_AUTODEPS (1 << 4) +#define CLKDM_ACTIVE_WITH_MPU (1 << 5) +#define CLKDM_MISSING_IDLE_REPORTING (1 << 6) +#define CLKDM_STANDBY_FORCE_WAKEUP BIT(7) + +#define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO) +#define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP) +#define CLKDM_CAN_HWSUP_SWSUP (CLKDM_CAN_SWSUP | CLKDM_CAN_HWSUP) + +/** + * struct clkdm_autodep - clkdm deps to add when entering/exiting hwsup mode + * @clkdm: clockdomain to add wkdep+sleepdep on - set name member only + * + * A clockdomain that should have wkdeps and sleepdeps added when a + * clockdomain should stay active in hwsup mode; and conversely, + * removed when the clockdomain should be allowed to go inactive in + * hwsup mode. + * + * Autodeps are deprecated and should be removed after + * omap_hwmod-based fine-grained module idle control is added. + */ +struct clkdm_autodep { + union { + const char *name; + struct clockdomain *ptr; + } clkdm; +}; + +/** + * struct clkdm_dep - encode dependencies between clockdomains + * @clkdm_name: clockdomain name + * @clkdm: pointer to the struct clockdomain of @clkdm_name + * @wkdep_usecount: Number of wakeup dependencies causing this clkdm to wake + * @sleepdep_usecount: Number of sleep deps that could prevent clkdm from idle + * + * Statically defined. @clkdm is resolved from @clkdm_name at runtime and + * should not be pre-initialized. + * + * XXX Should also include hardware (fixed) dependencies. + */ +struct clkdm_dep { + const char *clkdm_name; + struct clockdomain *clkdm; + s16 wkdep_usecount; + s16 sleepdep_usecount; +}; + +/* Possible flags for struct clockdomain._flags */ +#define _CLKDM_FLAG_HWSUP_ENABLED BIT(0) + +struct omap_hwmod; + +/** + * struct clockdomain - OMAP clockdomain + * @name: clockdomain name + * @pwrdm: powerdomain containing this clockdomain + * @clktrctrl_reg: CLKSTCTRL reg for the given clock domain + * @clktrctrl_mask: CLKTRCTRL/AUTOSTATE field mask in CM_CLKSTCTRL reg + * @flags: Clockdomain capability flags + * @_flags: Flags for use only by internal clockdomain code + * @dep_bit: Bit shift of this clockdomain's PM_WKDEP/CM_SLEEPDEP bit + * @prcm_partition: (OMAP4 only) PRCM partition ID for this clkdm's registers + * @cm_inst: (OMAP4 only) CM instance register offset + * @clkdm_offs: (OMAP4 only) CM clockdomain register offset + * @wkdep_srcs: Clockdomains that can be told to wake this powerdomain up + * @sleepdep_srcs: Clockdomains that can be told to keep this clkdm from inact + * @usecount: Usecount tracking + * @forcewake_count: Usecount for forcing the domain active + * @node: list_head to link all clockdomains together + * + * @prcm_partition should be a macro from mach-omap2/prcm44xx.h (OMAP4 only) + * @cm_inst should be a macro ending in _INST from the OMAP4 CM instance + * definitions (OMAP4 only) + * @clkdm_offs should be a macro ending in _CDOFFS from the OMAP4 CM instance + * definitions (OMAP4 only) + */ +struct clockdomain { + const char *name; + union { + const char *name; + struct powerdomain *ptr; + } pwrdm; + const u16 clktrctrl_mask; + const u8 flags; + u8 _flags; + const u8 dep_bit; + const u8 prcm_partition; + const u16 cm_inst; + const u16 clkdm_offs; + struct clkdm_dep *wkdep_srcs; + struct clkdm_dep *sleepdep_srcs; + int usecount; + int forcewake_count; + struct list_head node; + u32 context; +}; + +/** + * struct clkdm_ops - Arch specific function implementations + * @clkdm_add_wkdep: Add a wakeup dependency between clk domains + * @clkdm_del_wkdep: Delete a wakeup dependency between clk domains + * @clkdm_read_wkdep: Read wakeup dependency state between clk domains + * @clkdm_clear_all_wkdeps: Remove all wakeup dependencies from the clk domain + * @clkdm_add_sleepdep: Add a sleep dependency between clk domains + * @clkdm_del_sleepdep: Delete a sleep dependency between clk domains + * @clkdm_read_sleepdep: Read sleep dependency state between clk domains + * @clkdm_clear_all_sleepdeps: Remove all sleep dependencies from the clk domain + * @clkdm_sleep: Force a clockdomain to sleep + * @clkdm_wakeup: Force a clockdomain to wakeup + * @clkdm_allow_idle: Enable hw supervised idle transitions for clock domain + * @clkdm_deny_idle: Disable hw supervised idle transitions for clock domain + * @clkdm_clk_enable: Put the clkdm in right state for a clock enable + * @clkdm_clk_disable: Put the clkdm in right state for a clock disable + * @clkdm_save_context: Save the current clkdm context + * @clkdm_restore_context: Restore the clkdm context + */ +struct clkdm_ops { + int (*clkdm_add_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2); + int (*clkdm_del_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2); + int (*clkdm_read_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2); + int (*clkdm_clear_all_wkdeps)(struct clockdomain *clkdm); + int (*clkdm_add_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2); + int (*clkdm_del_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2); + int (*clkdm_read_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2); + int (*clkdm_clear_all_sleepdeps)(struct clockdomain *clkdm); + int (*clkdm_sleep)(struct clockdomain *clkdm); + int (*clkdm_wakeup)(struct clockdomain *clkdm); + void (*clkdm_allow_idle)(struct clockdomain *clkdm); + void (*clkdm_deny_idle)(struct clockdomain *clkdm); + int (*clkdm_clk_enable)(struct clockdomain *clkdm); + int (*clkdm_clk_disable)(struct clockdomain *clkdm); + int (*clkdm_save_context)(struct clockdomain *clkdm); + int (*clkdm_restore_context)(struct clockdomain *clkdm); +}; + +int clkdm_register_platform_funcs(struct clkdm_ops *co); +int clkdm_register_autodeps(struct clkdm_autodep *ia); +int clkdm_register_clkdms(struct clockdomain **c); +int clkdm_complete_init(void); + +struct clockdomain *clkdm_lookup(const char *name); + +int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user), + void *user); +struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm); + +int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_clear_all_wkdeps(struct clockdomain *clkdm); +int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm); + +void clkdm_allow_idle_nolock(struct clockdomain *clkdm); +void clkdm_allow_idle(struct clockdomain *clkdm); +void clkdm_deny_idle_nolock(struct clockdomain *clkdm); +void clkdm_deny_idle(struct clockdomain *clkdm); + +int clkdm_wakeup(struct clockdomain *clkdm); +int clkdm_sleep(struct clockdomain *clkdm); + +int clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk); +int clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk); +int clkdm_hwmod_enable(struct clockdomain *clkdm, struct omap_hwmod *oh); +int clkdm_hwmod_disable(struct clockdomain *clkdm, struct omap_hwmod *oh); + +void clkdm_save_context(void); +void clkdm_restore_context(void); + +extern void __init omap242x_clockdomains_init(void); +extern void __init omap243x_clockdomains_init(void); +extern void __init omap3xxx_clockdomains_init(void); +extern void __init am33xx_clockdomains_init(void); +extern void __init ti814x_clockdomains_init(void); +extern void __init ti816x_clockdomains_init(void); +extern void __init omap44xx_clockdomains_init(void); +extern void __init omap54xx_clockdomains_init(void); +extern void __init dra7xx_clockdomains_init(void); +void am43xx_clockdomains_init(void); + +extern void clkdm_add_autodeps(struct clockdomain *clkdm); +extern void clkdm_del_autodeps(struct clockdomain *clkdm); + +extern struct clkdm_ops omap2_clkdm_operations; +extern struct clkdm_ops omap3_clkdm_operations; +extern struct clkdm_ops omap4_clkdm_operations; +extern struct clkdm_ops am33xx_clkdm_operations; +extern struct clkdm_ops am43xx_clkdm_operations; + +extern struct clkdm_dep gfx_24xx_wkdeps[]; +extern struct clkdm_dep dsp_24xx_wkdeps[]; +extern struct clockdomain wkup_common_clkdm; + +#endif diff --git a/arch/arm/mach-omap2/clockdomains2420_data.c b/arch/arm/mach-omap2/clockdomains2420_data.c new file mode 100644 index 000000000..ac4ffb5d2 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains2420_data.c @@ -0,0 +1,154 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * OMAP2420 clockdomains + * + * Copyright (C) 2008-2011 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + * + * This file contains clockdomains and clockdomain wakeup dependencies + * for OMAP2420 chips. Some notes: + * + * A useful validation rule for struct clockdomain: Any clockdomain + * referenced by a wkdep_srcs must have a dep_bit assigned. So + * wkdep_srcs are really just software-controllable dependencies. + * Non-software-controllable dependencies do exist, but they are not + * encoded below (yet). + * + * 24xx does not support programmable sleep dependencies (SLEEPDEP) + * + * The overly-specific dep_bit names are due to a bit name collision + * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift + * value are the same for all powerdomains: 2 + * + * XXX should dep_bit be a mask, so we can test to see if it is 0 as a + * sanity check? + * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE + */ + +/* + * To-Do List + * -> Port the Sleep/Wakeup dependencies for the domains + * from the Power domain framework + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "soc.h" +#include "clockdomain.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-24xx.h" +#include "prm-regbits-24xx.h" + +/* + * Clockdomain dependencies for wkdeps + * + * XXX Hardware dependencies (e.g., dependencies that cannot be + * changed in software) are not included here yet, but should be. + */ + +/* Wakeup dependency source arrays */ + +/* 2420-specific possible wakeup dependencies */ + +/* 2420 PM_WKDEP_MPU: CORE, DSP, WKUP */ +static struct clkdm_dep mpu_2420_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP */ +static struct clkdm_dep core_2420_wkdeps[] = { + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "gfx_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* + * 2420-only clockdomains + */ + +static struct clockdomain mpu_2420_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .wkdep_srcs = mpu_2420_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, +}; + +static struct clockdomain iva1_2420_clkdm = { + .name = "iva1_clkdm", + .pwrdm = { .name = "dsp_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT, + .wkdep_srcs = dsp_24xx_wkdeps, + .clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK, +}; + +static struct clockdomain dsp_2420_clkdm = { + .name = "dsp_clkdm", + .pwrdm = { .name = "dsp_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK, +}; + +static struct clockdomain gfx_2420_clkdm = { + .name = "gfx_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = gfx_24xx_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK, +}; + +static struct clockdomain core_l3_2420_clkdm = { + .name = "core_l3_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .wkdep_srcs = core_2420_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK, +}; + +static struct clockdomain core_l4_2420_clkdm = { + .name = "core_l4_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .wkdep_srcs = core_2420_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK, +}; + +static struct clockdomain dss_2420_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK, +}; + +static struct clockdomain *clockdomains_omap242x[] __initdata = { + &wkup_common_clkdm, + &mpu_2420_clkdm, + &iva1_2420_clkdm, + &dsp_2420_clkdm, + &gfx_2420_clkdm, + &core_l3_2420_clkdm, + &core_l4_2420_clkdm, + &dss_2420_clkdm, + NULL, +}; + +void __init omap242x_clockdomains_init(void) +{ + if (!cpu_is_omap242x()) + return; + + clkdm_register_platform_funcs(&omap2_clkdm_operations); + clkdm_register_clkdms(clockdomains_omap242x); + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains2430_data.c b/arch/arm/mach-omap2/clockdomains2430_data.c new file mode 100644 index 000000000..0e97e178a --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains2430_data.c @@ -0,0 +1,181 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * OMAP2xxx clockdomains + * + * Copyright (C) 2008-2009 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + * + * This file contains clockdomains and clockdomain wakeup dependencies + * for OMAP2xxx chips. Some notes: + * + * A useful validation rule for struct clockdomain: Any clockdomain + * referenced by a wkdep_srcs must have a dep_bit assigned. So + * wkdep_srcs are really just software-controllable dependencies. + * Non-software-controllable dependencies do exist, but they are not + * encoded below (yet). + * + * 24xx does not support programmable sleep dependencies (SLEEPDEP) + * + * The overly-specific dep_bit names are due to a bit name collision + * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift + * value are the same for all powerdomains: 2 + * + * XXX should dep_bit be a mask, so we can test to see if it is 0 as a + * sanity check? + * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE + */ + +/* + * To-Do List + * -> Port the Sleep/Wakeup dependencies for the domains + * from the Power domain framework + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "soc.h" +#include "clockdomain.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-24xx.h" +#include "prm-regbits-24xx.h" + +/* + * Clockdomain dependencies for wkdeps + * + * XXX Hardware dependencies (e.g., dependencies that cannot be + * changed in software) are not included here yet, but should be. + */ + +/* Wakeup dependency source arrays */ + +/* 2430-specific possible wakeup dependencies */ + +/* 2430 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP, MDM */ +static struct clkdm_dep core_2430_wkdeps[] = { + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "gfx_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { .clkdm_name = "mdm_clkdm" }, + { NULL }, +}; + +/* 2430 PM_WKDEP_MPU: CORE, DSP, WKUP, MDM */ +static struct clkdm_dep mpu_2430_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { .clkdm_name = "mdm_clkdm" }, + { NULL }, +}; + +/* 2430 PM_WKDEP_MDM: CORE, MPU, WKUP */ +static struct clkdm_dep mdm_2430_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* + * 2430-only clockdomains + */ + +static struct clockdomain mpu_2430_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = mpu_2430_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, +}; + +/* Another case of bit name collisions between several registers: EN_MDM */ +static struct clockdomain mdm_clkdm = { + .name = "mdm_clkdm", + .pwrdm = { .name = "mdm_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT, + .wkdep_srcs = mdm_2430_wkdeps, + .clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK, +}; + +static struct clockdomain dsp_2430_clkdm = { + .name = "dsp_clkdm", + .pwrdm = { .name = "dsp_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT, + .wkdep_srcs = dsp_24xx_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK, +}; + +static struct clockdomain gfx_2430_clkdm = { + .name = "gfx_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = gfx_24xx_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK, +}; + +/* + * XXX add usecounting for clkdm dependencies, otherwise the presence + * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm + * could cause trouble + */ +static struct clockdomain core_l3_2430_clkdm = { + .name = "core_l3_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .dep_bit = OMAP24XX_EN_CORE_SHIFT, + .wkdep_srcs = core_2430_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK, +}; + +/* + * XXX add usecounting for clkdm dependencies, otherwise the presence + * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm + * could cause trouble + */ +static struct clockdomain core_l4_2430_clkdm = { + .name = "core_l4_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .dep_bit = OMAP24XX_EN_CORE_SHIFT, + .wkdep_srcs = core_2430_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK, +}; + +static struct clockdomain dss_2430_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK, +}; + +static struct clockdomain *clockdomains_omap243x[] __initdata = { + &wkup_common_clkdm, + &mpu_2430_clkdm, + &mdm_clkdm, + &dsp_2430_clkdm, + &gfx_2430_clkdm, + &core_l3_2430_clkdm, + &core_l4_2430_clkdm, + &dss_2430_clkdm, + NULL, +}; + +void __init omap243x_clockdomains_init(void) +{ + if (!cpu_is_omap243x()) + return; + + clkdm_register_platform_funcs(&omap2_clkdm_operations); + clkdm_register_clkdms(clockdomains_omap243x); + clkdm_complete_init(); +} + diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c new file mode 100644 index 000000000..220c22f5e --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * OMAP2/3 clockdomain common data + * + * Copyright (C) 2008-2011 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + * + * This file contains clockdomains and clockdomain wakeup/sleep + * dependencies for the OMAP2/3 chips. Some notes: + * + * A useful validation rule for struct clockdomain: Any clockdomain + * referenced by a wkdep_srcs or sleepdep_srcs array must have a + * dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just + * software-controllable dependencies. Non-software-controllable + * dependencies do exist, but they are not encoded below (yet). + * + * 24xx does not support programmable sleep dependencies (SLEEPDEP) + * + * The overly-specific dep_bit names are due to a bit name collision + * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift + * value are the same for all powerdomains: 2 + * + * XXX should dep_bit be a mask, so we can test to see if it is 0 as a + * sanity check? + * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE + */ + +/* + * To-Do List + * -> Port the Sleep/Wakeup dependencies for the domains + * from the Power domain framework + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-24xx.h" +#include "cm-regbits-34xx.h" +#include "cm-regbits-44xx.h" +#include "prm-regbits-24xx.h" +#include "prm-regbits-34xx.h" + +/* + * Clockdomain dependencies for wkdeps/sleepdeps + * + * XXX Hardware dependencies (e.g., dependencies that cannot be + * changed in software) are not included here yet, but should be. + */ + +/* Wakeup dependency source arrays */ + +/* 2xxx-specific possible dependencies */ + +/* 2xxx PM_WKDEP_GFX: CORE, MPU, WKUP */ +struct clkdm_dep gfx_24xx_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 2xxx PM_WKDEP_DSP: CORE, MPU, WKUP */ +struct clkdm_dep dsp_24xx_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + + +/* + * OMAP2/3-common clockdomains + * + * Even though the 2420 has a single PRCM module from the + * interconnect's perspective, internally it does appear to have + * separate PRM and CM clockdomains. The usual test case is + * sys_clkout/sys_clkout2. + */ + +/* This is an implicit clockdomain - it is never defined as such in TRM */ +struct clockdomain wkup_common_clkdm = { + .name = "wkup_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .dep_bit = OMAP_EN_WKUP_SHIFT, + .flags = CLKDM_ACTIVE_WITH_MPU, +}; diff --git a/arch/arm/mach-omap2/clockdomains33xx_data.c b/arch/arm/mach-omap2/clockdomains33xx_data.c new file mode 100644 index 000000000..c05a3c07d --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains33xx_data.c @@ -0,0 +1,188 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AM33XX Clock Domain data. + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + * Vaibhav Hiremath <hvaibhav@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "cm.h" +#include "cm33xx.h" +#include "cm-regbits-33xx.h" + +static struct clockdomain l4ls_am33xx_clkdm = { + .name = "l4ls_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_L4LS_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP | CLKDM_STANDBY_FORCE_WAKEUP, +}; + +static struct clockdomain l3s_am33xx_clkdm = { + .name = "l3s_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_L3S_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4fw_am33xx_clkdm = { + .name = "l4fw_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_L4FW_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l3_am33xx_clkdm = { + .name = "l3_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_L3_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4hs_am33xx_clkdm = { + .name = "l4hs_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_L4HS_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain ocpwp_l3_am33xx_clkdm = { + .name = "ocpwp_l3_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_OCPWP_L3_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain pruss_ocp_am33xx_clkdm = { + .name = "pruss_ocp_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_PRUSS_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain cpsw_125mhz_am33xx_clkdm = { + .name = "cpsw_125mhz_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_CPSW_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain lcdc_am33xx_clkdm = { + .name = "lcdc_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_LCDC_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain clk_24mhz_am33xx_clkdm = { + .name = "clk_24mhz_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .cm_inst = AM33XX_CM_PER_MOD, + .clkdm_offs = AM33XX_CM_PER_CLK_24MHZ_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_wkup_am33xx_clkdm = { + .name = "l4_wkup_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .cm_inst = AM33XX_CM_WKUP_MOD, + .clkdm_offs = AM33XX_CM_WKUP_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l3_aon_am33xx_clkdm = { + .name = "l3_aon_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .cm_inst = AM33XX_CM_WKUP_MOD, + .clkdm_offs = AM33XX_CM_L3_AON_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_wkup_aon_am33xx_clkdm = { + .name = "l4_wkup_aon_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .cm_inst = AM33XX_CM_WKUP_MOD, + .clkdm_offs = AM33XX_CM_L4_WKUP_AON_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain mpu_am33xx_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .cm_inst = AM33XX_CM_MPU_MOD, + .clkdm_offs = AM33XX_CM_MPU_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_rtc_am33xx_clkdm = { + .name = "l4_rtc_clkdm", + .pwrdm = { .name = "rtc_pwrdm" }, + .cm_inst = AM33XX_CM_RTC_MOD, + .clkdm_offs = AM33XX_CM_RTC_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain gfx_l3_am33xx_clkdm = { + .name = "gfx_l3_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .cm_inst = AM33XX_CM_GFX_MOD, + .clkdm_offs = AM33XX_CM_GFX_L3_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain gfx_l4ls_gfx_am33xx_clkdm = { + .name = "gfx_l4ls_gfx_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .cm_inst = AM33XX_CM_GFX_MOD, + .clkdm_offs = AM33XX_CM_GFX_L4LS_GFX_CLKSTCTRL__1_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_cefuse_am33xx_clkdm = { + .name = "l4_cefuse_clkdm", + .pwrdm = { .name = "cefuse_pwrdm" }, + .cm_inst = AM33XX_CM_CEFUSE_MOD, + .clkdm_offs = AM33XX_CM_CEFUSE_CLKSTCTRL_OFFSET, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain *clockdomains_am33xx[] __initdata = { + &l4ls_am33xx_clkdm, + &l3s_am33xx_clkdm, + &l4fw_am33xx_clkdm, + &l3_am33xx_clkdm, + &l4hs_am33xx_clkdm, + &ocpwp_l3_am33xx_clkdm, + &pruss_ocp_am33xx_clkdm, + &cpsw_125mhz_am33xx_clkdm, + &lcdc_am33xx_clkdm, + &clk_24mhz_am33xx_clkdm, + &l4_wkup_am33xx_clkdm, + &l3_aon_am33xx_clkdm, + &l4_wkup_aon_am33xx_clkdm, + &mpu_am33xx_clkdm, + &l4_rtc_am33xx_clkdm, + &gfx_l3_am33xx_clkdm, + &gfx_l4ls_gfx_am33xx_clkdm, + &l4_cefuse_am33xx_clkdm, + NULL, +}; + +void __init am33xx_clockdomains_init(void) +{ + clkdm_register_platform_funcs(&am33xx_clkdm_operations); + clkdm_register_clkdms(clockdomains_am33xx); + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains3xxx_data.c b/arch/arm/mach-omap2/clockdomains3xxx_data.c new file mode 100644 index 000000000..94bbd3831 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains3xxx_data.c @@ -0,0 +1,526 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * OMAP3xxx clockdomains + * + * Copyright (C) 2008-2011 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + * + * This file contains clockdomains and clockdomain wakeup/sleep + * dependencies for the OMAP3xxx chips. Some notes: + * + * A useful validation rule for struct clockdomain: Any clockdomain + * referenced by a wkdep_srcs or sleepdep_srcs array must have a + * dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just + * software-controllable dependencies. Non-software-controllable + * dependencies do exist, but they are not encoded below (yet). + * + * The overly-specific dep_bit names are due to a bit name collision + * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift + * value are the same for all powerdomains: 2 + * + * XXX should dep_bit be a mask, so we can test to see if it is 0 as a + * sanity check? + * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE + */ + +/* + * To-Do List + * -> Port the Sleep/Wakeup dependencies for the domains + * from the Power domain framework + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "soc.h" +#include "clockdomain.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-34xx.h" +#include "prm-regbits-34xx.h" + +/* + * Clockdomain dependencies for wkdeps/sleepdeps + * + * XXX Hardware dependencies (e.g., dependencies that cannot be + * changed in software) are not included here yet, but should be. + */ + +/* OMAP3-specific possible dependencies */ + +/* + * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE + * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE + */ +static struct clkdm_dep gfx_sgx_3xxx_wkdeps[] = { + { .clkdm_name = "iva2_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep gfx_sgx_am35x_wkdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 3430: PM_WKDEP_PER: CORE, IVA2, MPU, WKUP */ +static struct clkdm_dep per_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "iva2_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep per_am35x_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 3430ES2: PM_WKDEP_USBHOST: CORE, IVA2, MPU, WKUP */ +static struct clkdm_dep usbhost_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "iva2_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep usbhost_am35x_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER */ +static struct clkdm_dep mpu_3xxx_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "iva2_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "per_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep mpu_am35x_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "per_clkdm" }, + { NULL }, +}; + +/* 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER */ +static struct clkdm_dep iva2_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "per_clkdm" }, + { NULL }, +}; + +/* 3430 PM_WKDEP_CAM: IVA2, MPU, WKUP */ +static struct clkdm_dep cam_wkdeps[] = { + { .clkdm_name = "iva2_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 3430 PM_WKDEP_DSS: IVA2, MPU, WKUP */ +static struct clkdm_dep dss_wkdeps[] = { + { .clkdm_name = "iva2_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dss_am35x_wkdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 3430: PM_WKDEP_NEON: MPU */ +static struct clkdm_dep neon_wkdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { NULL }, +}; + +/* Sleep dependency source arrays for OMAP3-specific clkdms */ + +/* 3430: CM_SLEEPDEP_DSS: MPU, IVA */ +static struct clkdm_dep dss_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "iva2_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dss_am35x_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { NULL }, +}; + +/* 3430: CM_SLEEPDEP_PER: MPU, IVA */ +static struct clkdm_dep per_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "iva2_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep per_am35x_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { NULL }, +}; + +/* 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA */ +static struct clkdm_dep usbhost_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "iva2_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep usbhost_am35x_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { NULL }, +}; + +/* 3430: CM_SLEEPDEP_CAM: MPU */ +static struct clkdm_dep cam_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { NULL }, +}; + +/* + * 3430ES1: CM_SLEEPDEP_GFX: MPU + * 3430ES2: CM_SLEEPDEP_SGX: MPU + * These can share data since they will never be present simultaneously + * on the same device. + */ +static struct clkdm_dep gfx_sgx_sleepdeps[] = { + { .clkdm_name = "mpu_clkdm" }, + { NULL }, +}; + +/* + * OMAP3 clockdomains + */ + +static struct clockdomain mpu_3xxx_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP, + .dep_bit = OMAP3430_EN_MPU_SHIFT, + .wkdep_srcs = mpu_3xxx_wkdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK, +}; + +static struct clockdomain mpu_am35x_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP, + .dep_bit = OMAP3430_EN_MPU_SHIFT, + .wkdep_srcs = mpu_am35x_wkdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK, +}; + +static struct clockdomain neon_clkdm = { + .name = "neon_clkdm", + .pwrdm = { .name = "neon_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = neon_wkdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK, +}; + +static struct clockdomain iva2_clkdm = { + .name = "iva2_clkdm", + .pwrdm = { .name = "iva2_pwrdm" }, + .flags = CLKDM_CAN_SWSUP, + .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT, + .wkdep_srcs = iva2_wkdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK, +}; + +static struct clockdomain gfx_3430es1_clkdm = { + .name = "gfx_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = gfx_sgx_3xxx_wkdeps, + .sleepdep_srcs = gfx_sgx_sleepdeps, + .clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK, +}; + +static struct clockdomain sgx_clkdm = { + .name = "sgx_clkdm", + .pwrdm = { .name = "sgx_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = gfx_sgx_3xxx_wkdeps, + .sleepdep_srcs = gfx_sgx_sleepdeps, + .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK, +}; + +static struct clockdomain sgx_am35x_clkdm = { + .name = "sgx_clkdm", + .pwrdm = { .name = "sgx_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = gfx_sgx_am35x_wkdeps, + .sleepdep_srcs = gfx_sgx_sleepdeps, + .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK, +}; + +/* + * The die-to-die clockdomain was documented in the 34xx ES1 TRM, but + * then that information was removed from the 34xx ES2+ TRM. It is + * unclear whether the core is still there, but the clockdomain logic + * is there, and must be programmed to an appropriate state if the + * CORE clockdomain is to become inactive. + */ +static struct clockdomain d2d_clkdm = { + .name = "d2d_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK, +}; + +/* + * XXX add usecounting for clkdm dependencies, otherwise the presence + * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm + * could cause trouble + */ +static struct clockdomain core_l3_3xxx_clkdm = { + .name = "core_l3_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .dep_bit = OMAP3430_EN_CORE_SHIFT, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK, +}; + +/* + * XXX add usecounting for clkdm dependencies, otherwise the presence + * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm + * could cause trouble + */ +static struct clockdomain core_l4_3xxx_clkdm = { + .name = "core_l4_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .dep_bit = OMAP3430_EN_CORE_SHIFT, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK, +}; + +/* Another case of bit name collisions between several registers: EN_DSS */ +static struct clockdomain dss_3xxx_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "dss_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT, + .wkdep_srcs = dss_wkdeps, + .sleepdep_srcs = dss_sleepdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK, +}; + +static struct clockdomain dss_am35x_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "dss_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT, + .wkdep_srcs = dss_am35x_wkdeps, + .sleepdep_srcs = dss_am35x_sleepdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK, +}; + +static struct clockdomain cam_clkdm = { + .name = "cam_clkdm", + .pwrdm = { .name = "cam_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = cam_wkdeps, + .sleepdep_srcs = cam_sleepdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK, +}; + +static struct clockdomain usbhost_clkdm = { + .name = "usbhost_clkdm", + .pwrdm = { .name = "usbhost_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = usbhost_wkdeps, + .sleepdep_srcs = usbhost_sleepdeps, + .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK, +}; + +static struct clockdomain usbhost_am35x_clkdm = { + .name = "usbhost_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = usbhost_am35x_wkdeps, + .sleepdep_srcs = usbhost_am35x_sleepdeps, + .clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK, +}; + +static struct clockdomain per_clkdm = { + .name = "per_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP3430_EN_PER_SHIFT, + .wkdep_srcs = per_wkdeps, + .sleepdep_srcs = per_sleepdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK, +}; + +static struct clockdomain per_am35x_clkdm = { + .name = "per_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP3430_EN_PER_SHIFT, + .wkdep_srcs = per_am35x_wkdeps, + .sleepdep_srcs = per_am35x_sleepdeps, + .clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK, +}; + +static struct clockdomain emu_clkdm = { + .name = "emu_clkdm", + .pwrdm = { .name = "emu_pwrdm" }, + .flags = (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_SWSUP | + CLKDM_MISSING_IDLE_REPORTING), + .clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK, +}; + +static struct clockdomain dpll1_clkdm = { + .name = "dpll1_clkdm", + .pwrdm = { .name = "dpll1_pwrdm" }, +}; + +static struct clockdomain dpll2_clkdm = { + .name = "dpll2_clkdm", + .pwrdm = { .name = "dpll2_pwrdm" }, +}; + +static struct clockdomain dpll3_clkdm = { + .name = "dpll3_clkdm", + .pwrdm = { .name = "dpll3_pwrdm" }, +}; + +static struct clockdomain dpll4_clkdm = { + .name = "dpll4_clkdm", + .pwrdm = { .name = "dpll4_pwrdm" }, +}; + +static struct clockdomain dpll5_clkdm = { + .name = "dpll5_clkdm", + .pwrdm = { .name = "dpll5_pwrdm" }, +}; + +/* + * Clockdomain hwsup dependencies + */ + +static struct clkdm_autodep clkdm_autodeps[] = { + { + .clkdm = { .name = "mpu_clkdm" }, + }, + { + .clkdm = { .name = "iva2_clkdm" }, + }, + { + .clkdm = { .name = NULL }, + } +}; + +static struct clkdm_autodep clkdm_am35x_autodeps[] = { + { + .clkdm = { .name = "mpu_clkdm" }, + }, + { + .clkdm = { .name = NULL }, + } +}; + +/* + * + */ + +static struct clockdomain *clockdomains_common[] __initdata = { + &wkup_common_clkdm, + &neon_clkdm, + &core_l3_3xxx_clkdm, + &core_l4_3xxx_clkdm, + &emu_clkdm, + &dpll1_clkdm, + &dpll3_clkdm, + &dpll4_clkdm, + NULL +}; + +static struct clockdomain *clockdomains_omap3430[] __initdata = { + &mpu_3xxx_clkdm, + &iva2_clkdm, + &d2d_clkdm, + &dss_3xxx_clkdm, + &cam_clkdm, + &per_clkdm, + &dpll2_clkdm, + NULL +}; + +static struct clockdomain *clockdomains_omap3430es1[] __initdata = { + &gfx_3430es1_clkdm, + NULL, +}; + +static struct clockdomain *clockdomains_omap3430es2plus[] __initdata = { + &sgx_clkdm, + &dpll5_clkdm, + &usbhost_clkdm, + NULL, +}; + +static struct clockdomain *clockdomains_am35x[] __initdata = { + &mpu_am35x_clkdm, + &sgx_am35x_clkdm, + &dss_am35x_clkdm, + &per_am35x_clkdm, + &usbhost_am35x_clkdm, + &dpll5_clkdm, + NULL +}; + +void __init omap3xxx_clockdomains_init(void) +{ + struct clockdomain **sc; + unsigned int rev; + + if (!cpu_is_omap34xx()) + return; + + clkdm_register_platform_funcs(&omap3_clkdm_operations); + clkdm_register_clkdms(clockdomains_common); + + rev = omap_rev(); + + if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) { + clkdm_register_clkdms(clockdomains_am35x); + clkdm_register_autodeps(clkdm_am35x_autodeps); + } else { + clkdm_register_clkdms(clockdomains_omap3430); + + sc = (rev == OMAP3430_REV_ES1_0) ? + clockdomains_omap3430es1 : clockdomains_omap3430es2plus; + + clkdm_register_clkdms(sc); + clkdm_register_autodeps(clkdm_autodeps); + } + + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains43xx_data.c b/arch/arm/mach-omap2/clockdomains43xx_data.c new file mode 100644 index 000000000..c96a2b1ef --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains43xx_data.c @@ -0,0 +1,203 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AM43xx Clock domains framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "prcm44xx.h" +#include "prcm43xx.h" + +static struct clockdomain l4_cefuse_43xx_clkdm = { + .name = "l4_cefuse_clkdm", + .pwrdm = { .name = "cefuse_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_CEFUSE_INST, + .clkdm_offs = AM43XX_CM_CEFUSE_CEFUSE_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain mpu_43xx_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_MPU_INST, + .clkdm_offs = AM43XX_CM_MPU_MPU_CDOFFS, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l4ls_43xx_clkdm = { + .name = "l4ls_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_L4LS_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain tamper_43xx_clkdm = { + .name = "tamper_clkdm", + .pwrdm = { .name = "tamper_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_TAMPER_INST, + .clkdm_offs = AM43XX_CM_TAMPER_TAMPER_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_rtc_43xx_clkdm = { + .name = "l4_rtc_clkdm", + .pwrdm = { .name = "rtc_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_RTC_INST, + .clkdm_offs = AM43XX_CM_RTC_RTC_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain pruss_ocp_43xx_clkdm = { + .name = "pruss_ocp_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_ICSS_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain ocpwp_l3_43xx_clkdm = { + .name = "ocpwp_l3_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_OCPWP_L3_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l3s_tsc_43xx_clkdm = { + .name = "l3s_tsc_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_WKUP_INST, + .clkdm_offs = AM43XX_CM_WKUP_L3S_TSC_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain lcdc_43xx_clkdm = { + .name = "lcdc_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_LCDC_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain dss_43xx_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_DSS_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l3_aon_43xx_clkdm = { + .name = "l3_aon_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_WKUP_INST, + .clkdm_offs = AM43XX_CM_WKUP_L3_AON_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain emif_43xx_clkdm = { + .name = "emif_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_EMIF_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_wkup_aon_43xx_clkdm = { + .name = "l4_wkup_aon_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_WKUP_INST, + .clkdm_offs = AM43XX_CM_WKUP_L4_WKUP_AON_CDOFFS, +}; + +static struct clockdomain l3_43xx_clkdm = { + .name = "l3_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_L3_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_wkup_43xx_clkdm = { + .name = "l4_wkup_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_WKUP_INST, + .clkdm_offs = AM43XX_CM_WKUP_WKUP_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain cpsw_125mhz_43xx_clkdm = { + .name = "cpsw_125mhz_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_CPSW_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain gfx_l3_43xx_clkdm = { + .name = "gfx_l3_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_GFX_INST, + .clkdm_offs = AM43XX_CM_GFX_GFX_L3_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l3s_43xx_clkdm = { + .name = "l3s_clkdm", + .pwrdm = { .name = "per_pwrdm" }, + .prcm_partition = AM43XX_CM_PARTITION, + .cm_inst = AM43XX_CM_PER_INST, + .clkdm_offs = AM43XX_CM_PER_L3S_CDOFFS, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain *clockdomains_am43xx[] __initdata = { + &l4_cefuse_43xx_clkdm, + &mpu_43xx_clkdm, + &l4ls_43xx_clkdm, + &tamper_43xx_clkdm, + &l4_rtc_43xx_clkdm, + &pruss_ocp_43xx_clkdm, + &ocpwp_l3_43xx_clkdm, + &l3s_tsc_43xx_clkdm, + &lcdc_43xx_clkdm, + &dss_43xx_clkdm, + &l3_aon_43xx_clkdm, + &emif_43xx_clkdm, + &l4_wkup_aon_43xx_clkdm, + &l3_43xx_clkdm, + &l4_wkup_43xx_clkdm, + &cpsw_125mhz_43xx_clkdm, + &gfx_l3_43xx_clkdm, + &l3s_43xx_clkdm, + NULL +}; + +void __init am43xx_clockdomains_init(void) +{ + clkdm_register_platform_funcs(&am43xx_clkdm_operations); + clkdm_register_clkdms(clockdomains_am43xx); + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c new file mode 100644 index 000000000..8285be7c1 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains44xx_data.c @@ -0,0 +1,440 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 Clock domains framework + * + * Copyright (C) 2009-2011 Texas Instruments, Inc. + * Copyright (C) 2009-2011 Nokia Corporation + * + * Abhijit Pagare (abhijitpagare@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * Paul Walmsley (paul@pwsan.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "cm1_44xx.h" +#include "cm2_44xx.h" + +#include "cm-regbits-44xx.h" +#include "prm44xx.h" +#include "prcm44xx.h" +#include "prcm_mpu44xx.h" + +/* Static Dependencies for OMAP4 Clock Domains */ + +static struct clkdm_dep d2d_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_2_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { .clkdm_name = "l3_init_clkdm" }, + { .clkdm_name = "l4_cfg_clkdm" }, + { .clkdm_name = "l4_per_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep ducati_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_2_clkdm" }, + { .clkdm_name = "l3_dss_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { .clkdm_name = "l3_gfx_clkdm" }, + { .clkdm_name = "l3_init_clkdm" }, + { .clkdm_name = "l4_cfg_clkdm" }, + { .clkdm_name = "l4_per_clkdm" }, + { .clkdm_name = "l4_secure_clkdm" }, + { .clkdm_name = "l4_wkup_clkdm" }, + { .clkdm_name = "tesla_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep iss_wkup_sleep_deps[] = { + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep ivahd_wkup_sleep_deps[] = { + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l3_dma_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "ducati_clkdm" }, + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_dss_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { .clkdm_name = "l3_init_clkdm" }, + { .clkdm_name = "l4_cfg_clkdm" }, + { .clkdm_name = "l4_per_clkdm" }, + { .clkdm_name = "l4_secure_clkdm" }, + { .clkdm_name = "l4_wkup_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l3_dss_wkup_sleep_deps[] = { + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_2_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l3_gfx_wkup_sleep_deps[] = { + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l3_init_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { .clkdm_name = "l4_cfg_clkdm" }, + { .clkdm_name = "l4_per_clkdm" }, + { .clkdm_name = "l4_secure_clkdm" }, + { .clkdm_name = "l4_wkup_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l4_secure_wkup_sleep_deps[] = { + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { .clkdm_name = "l4_per_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep mpu_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "ducati_clkdm" }, + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_2_clkdm" }, + { .clkdm_name = "l3_dss_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { .clkdm_name = "l3_gfx_clkdm" }, + { .clkdm_name = "l3_init_clkdm" }, + { .clkdm_name = "l4_cfg_clkdm" }, + { .clkdm_name = "l4_per_clkdm" }, + { .clkdm_name = "l4_secure_clkdm" }, + { .clkdm_name = "l4_wkup_clkdm" }, + { .clkdm_name = "tesla_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep tesla_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "ivahd_clkdm" }, + { .clkdm_name = "l3_1_clkdm" }, + { .clkdm_name = "l3_2_clkdm" }, + { .clkdm_name = "l3_emif_clkdm" }, + { .clkdm_name = "l3_init_clkdm" }, + { .clkdm_name = "l4_cfg_clkdm" }, + { .clkdm_name = "l4_per_clkdm" }, + { .clkdm_name = "l4_wkup_clkdm" }, + { NULL }, +}; + +static struct clockdomain l4_cefuse_44xx_clkdm = { + .name = "l4_cefuse_clkdm", + .pwrdm = { .name = "cefuse_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CEFUSE_INST, + .clkdm_offs = OMAP4430_CM2_CEFUSE_CEFUSE_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l4_cfg_44xx_clkdm = { + .name = "l4_cfg_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_L4CFG_CDOFFS, + .dep_bit = OMAP4430_L4CFG_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain tesla_44xx_clkdm = { + .name = "tesla_clkdm", + .pwrdm = { .name = "tesla_pwrdm" }, + .prcm_partition = OMAP4430_CM1_PARTITION, + .cm_inst = OMAP4430_CM1_TESLA_INST, + .clkdm_offs = OMAP4430_CM1_TESLA_TESLA_CDOFFS, + .dep_bit = OMAP4430_TESLA_STATDEP_SHIFT, + .wkdep_srcs = tesla_wkup_sleep_deps, + .sleepdep_srcs = tesla_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l3_gfx_44xx_clkdm = { + .name = "l3_gfx_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_GFX_INST, + .clkdm_offs = OMAP4430_CM2_GFX_GFX_CDOFFS, + .dep_bit = OMAP4430_GFX_STATDEP_SHIFT, + .wkdep_srcs = l3_gfx_wkup_sleep_deps, + .sleepdep_srcs = l3_gfx_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain ivahd_44xx_clkdm = { + .name = "ivahd_clkdm", + .pwrdm = { .name = "ivahd_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_IVAHD_INST, + .clkdm_offs = OMAP4430_CM2_IVAHD_IVAHD_CDOFFS, + .dep_bit = OMAP4430_IVAHD_STATDEP_SHIFT, + .wkdep_srcs = ivahd_wkup_sleep_deps, + .sleepdep_srcs = ivahd_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l4_secure_44xx_clkdm = { + .name = "l4_secure_clkdm", + .pwrdm = { .name = "l4per_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_L4PER_INST, + .clkdm_offs = OMAP4430_CM2_L4PER_L4SEC_CDOFFS, + .dep_bit = OMAP4430_L4SEC_STATDEP_SHIFT, + .wkdep_srcs = l4_secure_wkup_sleep_deps, + .sleepdep_srcs = l4_secure_wkup_sleep_deps, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4_per_44xx_clkdm = { + .name = "l4_per_clkdm", + .pwrdm = { .name = "l4per_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_L4PER_INST, + .clkdm_offs = OMAP4430_CM2_L4PER_L4PER_CDOFFS, + .dep_bit = OMAP4430_L4PER_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain abe_44xx_clkdm = { + .name = "abe_clkdm", + .pwrdm = { .name = "abe_pwrdm" }, + .prcm_partition = OMAP4430_CM1_PARTITION, + .cm_inst = OMAP4430_CM1_ABE_INST, + .clkdm_offs = OMAP4430_CM1_ABE_ABE_CDOFFS, + .dep_bit = OMAP4430_ABE_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l3_instr_44xx_clkdm = { + .name = "l3_instr_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_L3INSTR_CDOFFS, +}; + +static struct clockdomain l3_init_44xx_clkdm = { + .name = "l3_init_clkdm", + .pwrdm = { .name = "l3init_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_L3INIT_INST, + .clkdm_offs = OMAP4430_CM2_L3INIT_L3INIT_CDOFFS, + .dep_bit = OMAP4430_L3INIT_STATDEP_SHIFT, + .wkdep_srcs = l3_init_wkup_sleep_deps, + .sleepdep_srcs = l3_init_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain d2d_44xx_clkdm = { + .name = "d2d_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_D2D_CDOFFS, + .wkdep_srcs = d2d_wkup_sleep_deps, + .sleepdep_srcs = d2d_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain mpu0_44xx_clkdm = { + .name = "mpu0_clkdm", + .pwrdm = { .name = "cpu0_pwrdm" }, + .prcm_partition = OMAP4430_PRCM_MPU_PARTITION, + .cm_inst = OMAP4430_PRCM_MPU_CPU0_INST, + .clkdm_offs = OMAP4430_PRCM_MPU_CPU0_CPU0_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain mpu1_44xx_clkdm = { + .name = "mpu1_clkdm", + .pwrdm = { .name = "cpu1_pwrdm" }, + .prcm_partition = OMAP4430_PRCM_MPU_PARTITION, + .cm_inst = OMAP4430_PRCM_MPU_CPU1_INST, + .clkdm_offs = OMAP4430_PRCM_MPU_CPU1_CPU1_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3_emif_44xx_clkdm = { + .name = "l3_emif_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_MEMIF_CDOFFS, + .dep_bit = OMAP4430_MEMIF_STATDEP_SHIFT, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l4_ao_44xx_clkdm = { + .name = "l4_ao_clkdm", + .pwrdm = { .name = "always_on_core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_ALWAYS_ON_INST, + .clkdm_offs = OMAP4430_CM2_ALWAYS_ON_ALWON_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain ducati_44xx_clkdm = { + .name = "ducati_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_DUCATI_CDOFFS, + .dep_bit = OMAP4430_DUCATI_STATDEP_SHIFT, + .wkdep_srcs = ducati_wkup_sleep_deps, + .sleepdep_srcs = ducati_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain mpu_44xx_clkdm = { + .name = "mpuss_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .prcm_partition = OMAP4430_CM1_PARTITION, + .cm_inst = OMAP4430_CM1_MPU_INST, + .clkdm_offs = OMAP4430_CM1_MPU_MPU_CDOFFS, + .wkdep_srcs = mpu_wkup_sleep_deps, + .sleepdep_srcs = mpu_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3_2_44xx_clkdm = { + .name = "l3_2_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_L3_2_CDOFFS, + .dep_bit = OMAP4430_L3_2_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3_1_44xx_clkdm = { + .name = "l3_1_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_L3_1_CDOFFS, + .dep_bit = OMAP4430_L3_1_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain iss_44xx_clkdm = { + .name = "iss_clkdm", + .pwrdm = { .name = "cam_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CAM_INST, + .clkdm_offs = OMAP4430_CM2_CAM_CAM_CDOFFS, + .wkdep_srcs = iss_wkup_sleep_deps, + .sleepdep_srcs = iss_wkup_sleep_deps, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l3_dss_44xx_clkdm = { + .name = "l3_dss_clkdm", + .pwrdm = { .name = "dss_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_DSS_INST, + .clkdm_offs = OMAP4430_CM2_DSS_DSS_CDOFFS, + .dep_bit = OMAP4430_DSS_STATDEP_SHIFT, + .wkdep_srcs = l3_dss_wkup_sleep_deps, + .sleepdep_srcs = l3_dss_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l4_wkup_44xx_clkdm = { + .name = "l4_wkup_clkdm", + .pwrdm = { .name = "wkup_pwrdm" }, + .prcm_partition = OMAP4430_PRM_PARTITION, + .cm_inst = OMAP4430_PRM_WKUP_CM_INST, + .clkdm_offs = OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS, + .dep_bit = OMAP4430_L4WKUP_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP | CLKDM_ACTIVE_WITH_MPU, +}; + +static struct clockdomain emu_sys_44xx_clkdm = { + .name = "emu_sys_clkdm", + .pwrdm = { .name = "emu_pwrdm" }, + .prcm_partition = OMAP4430_PRM_PARTITION, + .cm_inst = OMAP4430_PRM_EMU_CM_INST, + .clkdm_offs = OMAP4430_PRM_EMU_CM_EMU_CDOFFS, + .flags = (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_FORCE_WAKEUP | + CLKDM_MISSING_IDLE_REPORTING), +}; + +static struct clockdomain l3_dma_44xx_clkdm = { + .name = "l3_dma_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP4430_CM2_PARTITION, + .cm_inst = OMAP4430_CM2_CORE_INST, + .clkdm_offs = OMAP4430_CM2_CORE_SDMA_CDOFFS, + .wkdep_srcs = l3_dma_wkup_sleep_deps, + .sleepdep_srcs = l3_dma_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +/* As clockdomains are added or removed above, this list must also be changed */ +static struct clockdomain *clockdomains_omap44xx[] __initdata = { + &l4_cefuse_44xx_clkdm, + &l4_cfg_44xx_clkdm, + &tesla_44xx_clkdm, + &l3_gfx_44xx_clkdm, + &ivahd_44xx_clkdm, + &l4_secure_44xx_clkdm, + &l4_per_44xx_clkdm, + &abe_44xx_clkdm, + &l3_instr_44xx_clkdm, + &l3_init_44xx_clkdm, + &d2d_44xx_clkdm, + &mpu0_44xx_clkdm, + &mpu1_44xx_clkdm, + &l3_emif_44xx_clkdm, + &l4_ao_44xx_clkdm, + &ducati_44xx_clkdm, + &mpu_44xx_clkdm, + &l3_2_44xx_clkdm, + &l3_1_44xx_clkdm, + &iss_44xx_clkdm, + &l3_dss_44xx_clkdm, + &l4_wkup_44xx_clkdm, + &emu_sys_44xx_clkdm, + &l3_dma_44xx_clkdm, + NULL +}; + + +void __init omap44xx_clockdomains_init(void) +{ + clkdm_register_platform_funcs(&omap4_clkdm_operations); + clkdm_register_clkdms(clockdomains_omap44xx); + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains54xx_data.c b/arch/arm/mach-omap2/clockdomains54xx_data.c new file mode 100644 index 000000000..5611e0801 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains54xx_data.c @@ -0,0 +1,461 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP54XX Clock domains framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + * + * Abhijit Pagare (abhijitpagare@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * Paul Walmsley (paul@pwsan.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "cm1_54xx.h" +#include "cm2_54xx.h" + +#include "cm-regbits-54xx.h" +#include "prm54xx.h" +#include "prcm44xx.h" +#include "prcm_mpu54xx.h" + +/* Static Dependencies for OMAP4 Clock Domains */ + +static struct clkdm_dep c2c_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l3main2_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep cam_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dma_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dsp_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l3main2_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dss_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3main2_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep gpu_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep ipu_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l3main2_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep iva_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l3init_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l4sec_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep mipiext_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l3main2_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep mpu_wkup_sleep_deps[] = { + { .clkdm_name = "abe_clkdm" }, + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l3main2_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clockdomain l4sec_54xx_clkdm = { + .name = "l4sec_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_L4SEC_CDOFFS, + .dep_bit = OMAP54XX_L4SEC_STATDEP_SHIFT, + .wkdep_srcs = l4sec_wkup_sleep_deps, + .sleepdep_srcs = l4sec_wkup_sleep_deps, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain iva_54xx_clkdm = { + .name = "iva_clkdm", + .pwrdm = { .name = "iva_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_IVA_INST, + .clkdm_offs = OMAP54XX_CM_CORE_IVA_IVA_CDOFFS, + .dep_bit = OMAP54XX_IVA_STATDEP_SHIFT, + .wkdep_srcs = iva_wkup_sleep_deps, + .sleepdep_srcs = iva_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain mipiext_54xx_clkdm = { + .name = "mipiext_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_MIPIEXT_CDOFFS, + .wkdep_srcs = mipiext_wkup_sleep_deps, + .sleepdep_srcs = mipiext_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3main2_54xx_clkdm = { + .name = "l3main2_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_L3MAIN2_CDOFFS, + .dep_bit = OMAP54XX_L3MAIN2_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3main1_54xx_clkdm = { + .name = "l3main1_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_L3MAIN1_CDOFFS, + .dep_bit = OMAP54XX_L3MAIN1_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain custefuse_54xx_clkdm = { + .name = "custefuse_clkdm", + .pwrdm = { .name = "custefuse_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CUSTEFUSE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CUSTEFUSE_CUSTEFUSE_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain ipu_54xx_clkdm = { + .name = "ipu_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_IPU_CDOFFS, + .dep_bit = OMAP54XX_IPU_STATDEP_SHIFT, + .wkdep_srcs = ipu_wkup_sleep_deps, + .sleepdep_srcs = ipu_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l4cfg_54xx_clkdm = { + .name = "l4cfg_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_L4CFG_CDOFFS, + .dep_bit = OMAP54XX_L4CFG_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain abe_54xx_clkdm = { + .name = "abe_clkdm", + .pwrdm = { .name = "abe_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_AON_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_AON_ABE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_AON_ABE_ABE_CDOFFS, + .dep_bit = OMAP54XX_ABE_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain dss_54xx_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "dss_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_DSS_INST, + .clkdm_offs = OMAP54XX_CM_CORE_DSS_DSS_CDOFFS, + .dep_bit = OMAP54XX_DSS_STATDEP_SHIFT, + .wkdep_srcs = dss_wkup_sleep_deps, + .sleepdep_srcs = dss_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain dsp_54xx_clkdm = { + .name = "dsp_clkdm", + .pwrdm = { .name = "dsp_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_AON_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_AON_DSP_INST, + .clkdm_offs = OMAP54XX_CM_CORE_AON_DSP_DSP_CDOFFS, + .dep_bit = OMAP54XX_DSP_STATDEP_SHIFT, + .wkdep_srcs = dsp_wkup_sleep_deps, + .sleepdep_srcs = dsp_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain c2c_54xx_clkdm = { + .name = "c2c_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_C2C_CDOFFS, + .wkdep_srcs = c2c_wkup_sleep_deps, + .sleepdep_srcs = c2c_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l4per_54xx_clkdm = { + .name = "l4per_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_L4PER_CDOFFS, + .dep_bit = OMAP54XX_L4PER_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain gpu_54xx_clkdm = { + .name = "gpu_clkdm", + .pwrdm = { .name = "gpu_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_GPU_INST, + .clkdm_offs = OMAP54XX_CM_CORE_GPU_GPU_CDOFFS, + .dep_bit = OMAP54XX_GPU_STATDEP_SHIFT, + .wkdep_srcs = gpu_wkup_sleep_deps, + .sleepdep_srcs = gpu_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain wkupaon_54xx_clkdm = { + .name = "wkupaon_clkdm", + .pwrdm = { .name = "wkupaon_pwrdm" }, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .cm_inst = OMAP54XX_PRM_WKUPAON_CM_INST, + .clkdm_offs = OMAP54XX_PRM_WKUPAON_CM_WKUPAON_CDOFFS, + .dep_bit = OMAP54XX_WKUPAON_STATDEP_SHIFT, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain mpu0_54xx_clkdm = { + .name = "mpu0_clkdm", + .pwrdm = { .name = "cpu0_pwrdm" }, + .prcm_partition = OMAP54XX_PRCM_MPU_PARTITION, + .cm_inst = OMAP54XX_PRCM_MPU_CM_C0_INST, + .clkdm_offs = OMAP54XX_PRCM_MPU_CM_C0_CPU0_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain mpu1_54xx_clkdm = { + .name = "mpu1_clkdm", + .pwrdm = { .name = "cpu1_pwrdm" }, + .prcm_partition = OMAP54XX_PRCM_MPU_PARTITION, + .cm_inst = OMAP54XX_PRCM_MPU_CM_C1_INST, + .clkdm_offs = OMAP54XX_PRCM_MPU_CM_C1_CPU1_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain coreaon_54xx_clkdm = { + .name = "coreaon_clkdm", + .pwrdm = { .name = "coreaon_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_COREAON_INST, + .clkdm_offs = OMAP54XX_CM_CORE_COREAON_COREAON_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain mpu_54xx_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_AON_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_AON_MPU_INST, + .clkdm_offs = OMAP54XX_CM_CORE_AON_MPU_MPU_CDOFFS, + .wkdep_srcs = mpu_wkup_sleep_deps, + .sleepdep_srcs = mpu_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3init_54xx_clkdm = { + .name = "l3init_clkdm", + .pwrdm = { .name = "l3init_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_L3INIT_INST, + .clkdm_offs = OMAP54XX_CM_CORE_L3INIT_L3INIT_CDOFFS, + .dep_bit = OMAP54XX_L3INIT_STATDEP_SHIFT, + .wkdep_srcs = l3init_wkup_sleep_deps, + .sleepdep_srcs = l3init_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain dma_54xx_clkdm = { + .name = "dma_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_DMA_CDOFFS, + .wkdep_srcs = dma_wkup_sleep_deps, + .sleepdep_srcs = dma_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3instr_54xx_clkdm = { + .name = "l3instr_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_L3INSTR_CDOFFS, +}; + +static struct clockdomain emif_54xx_clkdm = { + .name = "emif_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CORE_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CORE_EMIF_CDOFFS, + .dep_bit = OMAP54XX_EMIF_STATDEP_SHIFT, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain emu_54xx_clkdm = { + .name = "emu_clkdm", + .pwrdm = { .name = "emu_pwrdm" }, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .cm_inst = OMAP54XX_PRM_EMU_CM_INST, + .clkdm_offs = OMAP54XX_PRM_EMU_CM_EMU_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain cam_54xx_clkdm = { + .name = "cam_clkdm", + .pwrdm = { .name = "cam_pwrdm" }, + .prcm_partition = OMAP54XX_CM_CORE_PARTITION, + .cm_inst = OMAP54XX_CM_CORE_CAM_INST, + .clkdm_offs = OMAP54XX_CM_CORE_CAM_CAM_CDOFFS, + .wkdep_srcs = cam_wkup_sleep_deps, + .sleepdep_srcs = cam_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +/* As clockdomains are added or removed above, this list must also be changed */ +static struct clockdomain *clockdomains_omap54xx[] __initdata = { + &l4sec_54xx_clkdm, + &iva_54xx_clkdm, + &mipiext_54xx_clkdm, + &l3main2_54xx_clkdm, + &l3main1_54xx_clkdm, + &custefuse_54xx_clkdm, + &ipu_54xx_clkdm, + &l4cfg_54xx_clkdm, + &abe_54xx_clkdm, + &dss_54xx_clkdm, + &dsp_54xx_clkdm, + &c2c_54xx_clkdm, + &l4per_54xx_clkdm, + &gpu_54xx_clkdm, + &wkupaon_54xx_clkdm, + &mpu0_54xx_clkdm, + &mpu1_54xx_clkdm, + &coreaon_54xx_clkdm, + &mpu_54xx_clkdm, + &l3init_54xx_clkdm, + &dma_54xx_clkdm, + &l3instr_54xx_clkdm, + &emif_54xx_clkdm, + &emu_54xx_clkdm, + &cam_54xx_clkdm, + NULL +}; + +void __init omap54xx_clockdomains_init(void) +{ + clkdm_register_platform_funcs(&omap4_clkdm_operations); + clkdm_register_clkdms(clockdomains_omap54xx); + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains7xx_data.c b/arch/arm/mach-omap2/clockdomains7xx_data.c new file mode 100644 index 000000000..27835c4d1 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains7xx_data.c @@ -0,0 +1,737 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * DRA7xx Clock domains framework + * + * Copyright (C) 2009-2013 Texas Instruments, Inc. + * Copyright (C) 2009-2011 Nokia Corporation + * + * Generated by code originally written by: + * Abhijit Pagare (abhijitpagare@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * Paul Walmsley (paul@pwsan.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "cm1_7xx.h" +#include "cm2_7xx.h" + +#include "cm-regbits-7xx.h" +#include "prm7xx.h" +#include "prcm44xx.h" +#include "prcm_mpu7xx.h" + +/* Static Dependencies for DRA7xx Clock Domains */ + +static struct clkdm_dep cam_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dma_wkup_sleep_deps[] = { + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "ipu1_clkdm" }, + { .clkdm_name = "ipu2_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "pcie_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dsp1_wkup_sleep_deps[] = { + { .clkdm_name = "atl_clkdm" }, + { .clkdm_name = "cam_clkdm" }, + { .clkdm_name = "dsp2_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "gmac_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "ipu1_clkdm" }, + { .clkdm_name = "ipu2_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "pcie_clkdm" }, + { .clkdm_name = "vpe_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dsp2_wkup_sleep_deps[] = { + { .clkdm_name = "atl_clkdm" }, + { .clkdm_name = "cam_clkdm" }, + { .clkdm_name = "dsp1_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "gmac_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "ipu1_clkdm" }, + { .clkdm_name = "ipu2_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "pcie_clkdm" }, + { .clkdm_name = "vpe_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep dss_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep eve1_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep eve2_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep eve3_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep eve4_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep gmac_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep gpu_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep ipu1_wkup_sleep_deps[] = { + { .clkdm_name = "atl_clkdm" }, + { .clkdm_name = "dsp1_clkdm" }, + { .clkdm_name = "dsp2_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "gmac_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "ipu2_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "pcie_clkdm" }, + { .clkdm_name = "vpe_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep ipu2_wkup_sleep_deps[] = { + { .clkdm_name = "atl_clkdm" }, + { .clkdm_name = "dsp1_clkdm" }, + { .clkdm_name = "dsp2_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "gmac_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "ipu1_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "pcie_clkdm" }, + { .clkdm_name = "vpe_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep iva_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l3init_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l4per2_wkup_sleep_deps[] = { + { .clkdm_name = "dsp1_clkdm" }, + { .clkdm_name = "dsp2_clkdm" }, + { .clkdm_name = "ipu1_clkdm" }, + { .clkdm_name = "ipu2_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep l4sec_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep mpu_wkup_sleep_deps[] = { + { .clkdm_name = "cam_clkdm" }, + { .clkdm_name = "dsp1_clkdm" }, + { .clkdm_name = "dsp2_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "gmac_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "ipu1_clkdm" }, + { .clkdm_name = "ipu2_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l3main1_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "pcie_clkdm" }, + { .clkdm_name = "vpe_clkdm" }, + { .clkdm_name = "wkupaon_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep pcie_wkup_sleep_deps[] = { + { .clkdm_name = "atl_clkdm" }, + { .clkdm_name = "cam_clkdm" }, + { .clkdm_name = "dsp1_clkdm" }, + { .clkdm_name = "dsp2_clkdm" }, + { .clkdm_name = "dss_clkdm" }, + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "eve1_clkdm" }, + { .clkdm_name = "eve2_clkdm" }, + { .clkdm_name = "eve3_clkdm" }, + { .clkdm_name = "eve4_clkdm" }, + { .clkdm_name = "gmac_clkdm" }, + { .clkdm_name = "gpu_clkdm" }, + { .clkdm_name = "ipu_clkdm" }, + { .clkdm_name = "ipu1_clkdm" }, + { .clkdm_name = "iva_clkdm" }, + { .clkdm_name = "l3init_clkdm" }, + { .clkdm_name = "l4cfg_clkdm" }, + { .clkdm_name = "l4per_clkdm" }, + { .clkdm_name = "l4per2_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { .clkdm_name = "l4sec_clkdm" }, + { .clkdm_name = "vpe_clkdm" }, + { NULL }, +}; + +static struct clkdm_dep vpe_wkup_sleep_deps[] = { + { .clkdm_name = "emif_clkdm" }, + { .clkdm_name = "l4per3_clkdm" }, + { NULL }, +}; + +static struct clockdomain l4per3_7xx_clkdm = { + .name = "l4per3_clkdm", + .pwrdm = { .name = "l4per_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_L4PER_INST, + .clkdm_offs = DRA7XX_CM_CORE_L4PER_L4PER3_CDOFFS, + .dep_bit = DRA7XX_L4PER3_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l4per2_7xx_clkdm = { + .name = "l4per2_clkdm", + .pwrdm = { .name = "l4per_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_L4PER_INST, + .clkdm_offs = DRA7XX_CM_CORE_L4PER_L4PER2_CDOFFS, + .dep_bit = DRA7XX_L4PER2_STATDEP_SHIFT, + .wkdep_srcs = l4per2_wkup_sleep_deps, + .sleepdep_srcs = l4per2_wkup_sleep_deps, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain mpu0_7xx_clkdm = { + .name = "mpu0_clkdm", + .pwrdm = { .name = "cpu0_pwrdm" }, + .prcm_partition = DRA7XX_MPU_PRCM_PARTITION, + .cm_inst = DRA7XX_MPU_PRCM_CM_C0_INST, + .clkdm_offs = DRA7XX_MPU_PRCM_CM_C0_CPU0_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain iva_7xx_clkdm = { + .name = "iva_clkdm", + .pwrdm = { .name = "iva_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_IVA_INST, + .clkdm_offs = DRA7XX_CM_CORE_IVA_IVA_CDOFFS, + .dep_bit = DRA7XX_IVA_STATDEP_SHIFT, + .wkdep_srcs = iva_wkup_sleep_deps, + .sleepdep_srcs = iva_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain coreaon_7xx_clkdm = { + .name = "coreaon_clkdm", + .pwrdm = { .name = "coreaon_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_COREAON_INST, + .clkdm_offs = DRA7XX_CM_CORE_COREAON_COREAON_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain ipu1_7xx_clkdm = { + .name = "ipu1_clkdm", + .pwrdm = { .name = "ipu_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_IPU_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_IPU_IPU1_CDOFFS, + .dep_bit = DRA7XX_IPU1_STATDEP_SHIFT, + .wkdep_srcs = ipu1_wkup_sleep_deps, + .sleepdep_srcs = ipu1_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain ipu2_7xx_clkdm = { + .name = "ipu2_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CORE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CORE_IPU2_CDOFFS, + .dep_bit = DRA7XX_IPU2_STATDEP_SHIFT, + .wkdep_srcs = ipu2_wkup_sleep_deps, + .sleepdep_srcs = ipu2_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l3init_7xx_clkdm = { + .name = "l3init_clkdm", + .pwrdm = { .name = "l3init_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_L3INIT_INST, + .clkdm_offs = DRA7XX_CM_CORE_L3INIT_L3INIT_CDOFFS, + .dep_bit = DRA7XX_L3INIT_STATDEP_SHIFT, + .wkdep_srcs = l3init_wkup_sleep_deps, + .sleepdep_srcs = l3init_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l4sec_7xx_clkdm = { + .name = "l4sec_clkdm", + .pwrdm = { .name = "l4per_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_L4PER_INST, + .clkdm_offs = DRA7XX_CM_CORE_L4PER_L4SEC_CDOFFS, + .dep_bit = DRA7XX_L4SEC_STATDEP_SHIFT, + .wkdep_srcs = l4sec_wkup_sleep_deps, + .sleepdep_srcs = l4sec_wkup_sleep_deps, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l3main1_7xx_clkdm = { + .name = "l3main1_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CORE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CORE_L3MAIN1_CDOFFS, + .dep_bit = DRA7XX_L3MAIN1_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain vpe_7xx_clkdm = { + .name = "vpe_clkdm", + .pwrdm = { .name = "vpe_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_VPE_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_VPE_VPE_CDOFFS, + .dep_bit = DRA7XX_VPE_STATDEP_SHIFT, + .wkdep_srcs = vpe_wkup_sleep_deps, + .sleepdep_srcs = vpe_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain mpu_7xx_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_MPU_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_MPU_MPU_CDOFFS, + .wkdep_srcs = mpu_wkup_sleep_deps, + .sleepdep_srcs = mpu_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain custefuse_7xx_clkdm = { + .name = "custefuse_clkdm", + .pwrdm = { .name = "custefuse_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CUSTEFUSE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CUSTEFUSE_CUSTEFUSE_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain ipu_7xx_clkdm = { + .name = "ipu_clkdm", + .pwrdm = { .name = "ipu_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_IPU_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_IPU_IPU_CDOFFS, + .dep_bit = DRA7XX_IPU_STATDEP_SHIFT, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain mpu1_7xx_clkdm = { + .name = "mpu1_clkdm", + .pwrdm = { .name = "cpu1_pwrdm" }, + .prcm_partition = DRA7XX_MPU_PRCM_PARTITION, + .cm_inst = DRA7XX_MPU_PRCM_CM_C1_INST, + .clkdm_offs = DRA7XX_MPU_PRCM_CM_C1_CPU1_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain gmac_7xx_clkdm = { + .name = "gmac_clkdm", + .pwrdm = { .name = "l3init_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_L3INIT_INST, + .clkdm_offs = DRA7XX_CM_CORE_L3INIT_GMAC_CDOFFS, + .dep_bit = DRA7XX_GMAC_STATDEP_SHIFT, + .wkdep_srcs = gmac_wkup_sleep_deps, + .sleepdep_srcs = gmac_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain l4cfg_7xx_clkdm = { + .name = "l4cfg_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CORE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CORE_L4CFG_CDOFFS, + .dep_bit = DRA7XX_L4CFG_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP, +}; + +static struct clockdomain dma_7xx_clkdm = { + .name = "dma_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CORE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CORE_DMA_CDOFFS, + .wkdep_srcs = dma_wkup_sleep_deps, + .sleepdep_srcs = dma_wkup_sleep_deps, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain rtc_7xx_clkdm = { + .name = "rtc_clkdm", + .pwrdm = { .name = "rtc_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_RTC_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_RTC_RTC_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain pcie_7xx_clkdm = { + .name = "pcie_clkdm", + .pwrdm = { .name = "l3init_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_L3INIT_INST, + .clkdm_offs = DRA7XX_CM_CORE_L3INIT_PCIE_CDOFFS, + .dep_bit = DRA7XX_PCIE_STATDEP_SHIFT, + .wkdep_srcs = pcie_wkup_sleep_deps, + .sleepdep_srcs = pcie_wkup_sleep_deps, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain atl_7xx_clkdm = { + .name = "atl_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CORE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CORE_ATL_CDOFFS, + .dep_bit = DRA7XX_ATL_STATDEP_SHIFT, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain l3instr_7xx_clkdm = { + .name = "l3instr_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CORE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CORE_L3INSTR_CDOFFS, +}; + +static struct clockdomain dss_7xx_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "dss_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_DSS_INST, + .clkdm_offs = DRA7XX_CM_CORE_DSS_DSS_CDOFFS, + .dep_bit = DRA7XX_DSS_STATDEP_SHIFT, + .wkdep_srcs = dss_wkup_sleep_deps, + .sleepdep_srcs = dss_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain emif_7xx_clkdm = { + .name = "emif_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CORE_INST, + .clkdm_offs = DRA7XX_CM_CORE_CORE_EMIF_CDOFFS, + .dep_bit = DRA7XX_EMIF_STATDEP_SHIFT, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain emu_7xx_clkdm = { + .name = "emu_clkdm", + .pwrdm = { .name = "emu_pwrdm" }, + .prcm_partition = DRA7XX_PRM_PARTITION, + .cm_inst = DRA7XX_PRM_EMU_CM_INST, + .clkdm_offs = DRA7XX_PRM_EMU_CM_EMU_CDOFFS, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain dsp2_7xx_clkdm = { + .name = "dsp2_clkdm", + .pwrdm = { .name = "dsp2_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_DSP2_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_DSP2_DSP2_CDOFFS, + .dep_bit = DRA7XX_DSP2_STATDEP_SHIFT, + .wkdep_srcs = dsp2_wkup_sleep_deps, + .sleepdep_srcs = dsp2_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain dsp1_7xx_clkdm = { + .name = "dsp1_clkdm", + .pwrdm = { .name = "dsp1_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_DSP1_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_DSP1_DSP1_CDOFFS, + .dep_bit = DRA7XX_DSP1_STATDEP_SHIFT, + .wkdep_srcs = dsp1_wkup_sleep_deps, + .sleepdep_srcs = dsp1_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain cam_7xx_clkdm = { + .name = "cam_clkdm", + .pwrdm = { .name = "cam_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_CAM_INST, + .clkdm_offs = DRA7XX_CM_CORE_CAM_CAM_CDOFFS, + .dep_bit = DRA7XX_CAM_STATDEP_SHIFT, + .wkdep_srcs = cam_wkup_sleep_deps, + .sleepdep_srcs = cam_wkup_sleep_deps, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain l4per_7xx_clkdm = { + .name = "l4per_clkdm", + .pwrdm = { .name = "l4per_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_L4PER_INST, + .clkdm_offs = DRA7XX_CM_CORE_L4PER_L4PER_CDOFFS, + .dep_bit = DRA7XX_L4PER_STATDEP_SHIFT, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain gpu_7xx_clkdm = { + .name = "gpu_clkdm", + .pwrdm = { .name = "gpu_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_PARTITION, + .cm_inst = DRA7XX_CM_CORE_GPU_INST, + .clkdm_offs = DRA7XX_CM_CORE_GPU_GPU_CDOFFS, + .dep_bit = DRA7XX_GPU_STATDEP_SHIFT, + .wkdep_srcs = gpu_wkup_sleep_deps, + .sleepdep_srcs = gpu_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain eve4_7xx_clkdm = { + .name = "eve4_clkdm", + .pwrdm = { .name = "eve4_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_EVE4_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_EVE4_EVE4_CDOFFS, + .dep_bit = DRA7XX_EVE4_STATDEP_SHIFT, + .wkdep_srcs = eve4_wkup_sleep_deps, + .sleepdep_srcs = eve4_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain eve2_7xx_clkdm = { + .name = "eve2_clkdm", + .pwrdm = { .name = "eve2_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_EVE2_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_EVE2_EVE2_CDOFFS, + .dep_bit = DRA7XX_EVE2_STATDEP_SHIFT, + .wkdep_srcs = eve2_wkup_sleep_deps, + .sleepdep_srcs = eve2_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain eve3_7xx_clkdm = { + .name = "eve3_clkdm", + .pwrdm = { .name = "eve3_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_EVE3_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_EVE3_EVE3_CDOFFS, + .dep_bit = DRA7XX_EVE3_STATDEP_SHIFT, + .wkdep_srcs = eve3_wkup_sleep_deps, + .sleepdep_srcs = eve3_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain wkupaon_7xx_clkdm = { + .name = "wkupaon_clkdm", + .pwrdm = { .name = "wkupaon_pwrdm" }, + .prcm_partition = DRA7XX_PRM_PARTITION, + .cm_inst = DRA7XX_PRM_WKUPAON_CM_INST, + .clkdm_offs = DRA7XX_PRM_WKUPAON_CM_WKUPAON_CDOFFS, + .dep_bit = DRA7XX_WKUPAON_STATDEP_SHIFT, + .flags = CLKDM_CAN_FORCE_WAKEUP | CLKDM_CAN_HWSUP, +}; + +static struct clockdomain eve1_7xx_clkdm = { + .name = "eve1_clkdm", + .pwrdm = { .name = "eve1_pwrdm" }, + .prcm_partition = DRA7XX_CM_CORE_AON_PARTITION, + .cm_inst = DRA7XX_CM_CORE_AON_EVE1_INST, + .clkdm_offs = DRA7XX_CM_CORE_AON_EVE1_EVE1_CDOFFS, + .dep_bit = DRA7XX_EVE1_STATDEP_SHIFT, + .wkdep_srcs = eve1_wkup_sleep_deps, + .sleepdep_srcs = eve1_wkup_sleep_deps, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +/* As clockdomains are added or removed above, this list must also be changed */ +static struct clockdomain *clockdomains_dra7xx[] __initdata = { + &l4per3_7xx_clkdm, + &l4per2_7xx_clkdm, + &mpu0_7xx_clkdm, + &iva_7xx_clkdm, + &coreaon_7xx_clkdm, + &ipu1_7xx_clkdm, + &ipu2_7xx_clkdm, + &l3init_7xx_clkdm, + &l4sec_7xx_clkdm, + &l3main1_7xx_clkdm, + &vpe_7xx_clkdm, + &mpu_7xx_clkdm, + &custefuse_7xx_clkdm, + &ipu_7xx_clkdm, + &mpu1_7xx_clkdm, + &gmac_7xx_clkdm, + &l4cfg_7xx_clkdm, + &dma_7xx_clkdm, + &rtc_7xx_clkdm, + &pcie_7xx_clkdm, + &atl_7xx_clkdm, + &l3instr_7xx_clkdm, + &dss_7xx_clkdm, + &emif_7xx_clkdm, + &emu_7xx_clkdm, + &dsp2_7xx_clkdm, + &dsp1_7xx_clkdm, + &cam_7xx_clkdm, + &l4per_7xx_clkdm, + &gpu_7xx_clkdm, + &eve4_7xx_clkdm, + &eve2_7xx_clkdm, + &eve3_7xx_clkdm, + &wkupaon_7xx_clkdm, + &eve1_7xx_clkdm, + NULL +}; + +void __init dra7xx_clockdomains_init(void) +{ + clkdm_register_platform_funcs(&omap4_clkdm_operations); + clkdm_register_clkdms(clockdomains_dra7xx); + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains81xx_data.c b/arch/arm/mach-omap2/clockdomains81xx_data.c new file mode 100644 index 000000000..549cf6148 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains81xx_data.c @@ -0,0 +1,214 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * TI81XX Clock Domain data. + * + * Copyright (C) 2010 Texas Instruments, Inc. - https://www.ti.com/ + * Copyright (C) 2013 SKTB SKiT, http://www.skitlab.ru/ + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS_81XX_H +#define __ARCH_ARM_MACH_OMAP2_CLOCKDOMAINS_81XX_H + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "cm81xx.h" + +/* + * Note that 814x seems to have HWSUP_SWSUP for many clockdomains + * while 816x does not. According to the TRM, 816x only has HWSUP + * for ALWON_L3_FAST. Also note that the TI tree clockdomains81xx.h + * seems to have the related ifdef the wrong way around claiming + * 816x supports HWSUP while 814x does not. For now, we only set + * HWSUP for ALWON_L3_FAST as that seems to be supported for both + * dm814x and dm816x. + */ + +/* Common for 81xx */ + +static struct clockdomain alwon_l3_slow_81xx_clkdm = { + .name = "alwon_l3s_clkdm", + .pwrdm = { .name = "alwon_pwrdm" }, + .cm_inst = TI81XX_CM_ALWON_MOD, + .clkdm_offs = TI81XX_CM_ALWON_L3_SLOW_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain alwon_l3_med_81xx_clkdm = { + .name = "alwon_l3_med_clkdm", + .pwrdm = { .name = "alwon_pwrdm" }, + .cm_inst = TI81XX_CM_ALWON_MOD, + .clkdm_offs = TI81XX_CM_ALWON_L3_MED_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain alwon_l3_fast_81xx_clkdm = { + .name = "alwon_l3_fast_clkdm", + .pwrdm = { .name = "alwon_pwrdm" }, + .cm_inst = TI81XX_CM_ALWON_MOD, + .clkdm_offs = TI81XX_CM_ALWON_L3_FAST_CLKDM, + .flags = CLKDM_CAN_HWSUP_SWSUP, +}; + +static struct clockdomain alwon_ethernet_81xx_clkdm = { + .name = "alwon_ethernet_clkdm", + .pwrdm = { .name = "alwon_pwrdm" }, + .cm_inst = TI81XX_CM_ALWON_MOD, + .clkdm_offs = TI81XX_CM_ETHERNET_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain mmu_81xx_clkdm = { + .name = "mmu_clkdm", + .pwrdm = { .name = "alwon_pwrdm" }, + .cm_inst = TI81XX_CM_ALWON_MOD, + .clkdm_offs = TI81XX_CM_MMU_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain mmu_cfg_81xx_clkdm = { + .name = "mmu_cfg_clkdm", + .pwrdm = { .name = "alwon_pwrdm" }, + .cm_inst = TI81XX_CM_ALWON_MOD, + .clkdm_offs = TI81XX_CM_MMUCFG_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain default_l3_slow_81xx_clkdm = { + .name = "default_l3_slow_clkdm", + .pwrdm = { .name = "default_pwrdm" }, + .cm_inst = TI81XX_CM_DEFAULT_MOD, + .clkdm_offs = TI816X_CM_DEFAULT_L3_SLOW_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain default_sata_81xx_clkdm = { + .name = "default_clkdm", + .pwrdm = { .name = "default_pwrdm" }, + .cm_inst = TI81XX_CM_DEFAULT_MOD, + .clkdm_offs = TI816X_CM_DEFAULT_SATA_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +/* 816x only */ + +static struct clockdomain alwon_mpu_816x_clkdm = { + .name = "alwon_mpu_clkdm", + .pwrdm = { .name = "alwon_pwrdm" }, + .cm_inst = TI81XX_CM_ALWON_MOD, + .clkdm_offs = TI81XX_CM_ALWON_MPU_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain active_gem_816x_clkdm = { + .name = "active_gem_clkdm", + .pwrdm = { .name = "active_pwrdm" }, + .cm_inst = TI81XX_CM_ACTIVE_MOD, + .clkdm_offs = TI816X_CM_ACTIVE_GEM_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain ivahd0_816x_clkdm = { + .name = "ivahd0_clkdm", + .pwrdm = { .name = "ivahd0_pwrdm" }, + .cm_inst = TI816X_CM_IVAHD0_MOD, + .clkdm_offs = TI816X_CM_IVAHD0_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain ivahd1_816x_clkdm = { + .name = "ivahd1_clkdm", + .pwrdm = { .name = "ivahd1_pwrdm" }, + .cm_inst = TI816X_CM_IVAHD1_MOD, + .clkdm_offs = TI816X_CM_IVAHD1_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain ivahd2_816x_clkdm = { + .name = "ivahd2_clkdm", + .pwrdm = { .name = "ivahd2_pwrdm" }, + .cm_inst = TI816X_CM_IVAHD2_MOD, + .clkdm_offs = TI816X_CM_IVAHD2_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain sgx_816x_clkdm = { + .name = "sgx_clkdm", + .pwrdm = { .name = "sgx_pwrdm" }, + .cm_inst = TI81XX_CM_SGX_MOD, + .clkdm_offs = TI816X_CM_SGX_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain default_l3_med_816x_clkdm = { + .name = "default_l3_med_clkdm", + .pwrdm = { .name = "default_pwrdm" }, + .cm_inst = TI81XX_CM_DEFAULT_MOD, + .clkdm_offs = TI816X_CM_DEFAULT_L3_MED_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain default_ducati_816x_clkdm = { + .name = "default_ducati_clkdm", + .pwrdm = { .name = "default_pwrdm" }, + .cm_inst = TI81XX_CM_DEFAULT_MOD, + .clkdm_offs = TI816X_CM_DEFAULT_DUCATI_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain default_pci_816x_clkdm = { + .name = "default_pci_clkdm", + .pwrdm = { .name = "default_pwrdm" }, + .cm_inst = TI81XX_CM_DEFAULT_MOD, + .clkdm_offs = TI816X_CM_DEFAULT_PCI_CLKDM, + .flags = CLKDM_CAN_SWSUP, +}; + +static struct clockdomain *clockdomains_ti814x[] __initdata = { + &alwon_l3_slow_81xx_clkdm, + &alwon_l3_med_81xx_clkdm, + &alwon_l3_fast_81xx_clkdm, + &alwon_ethernet_81xx_clkdm, + &mmu_81xx_clkdm, + &mmu_cfg_81xx_clkdm, + &default_l3_slow_81xx_clkdm, + &default_sata_81xx_clkdm, + NULL, +}; + +void __init ti814x_clockdomains_init(void) +{ + clkdm_register_platform_funcs(&am33xx_clkdm_operations); + clkdm_register_clkdms(clockdomains_ti814x); + clkdm_complete_init(); +} + +static struct clockdomain *clockdomains_ti816x[] __initdata = { + &alwon_mpu_816x_clkdm, + &alwon_l3_slow_81xx_clkdm, + &alwon_l3_med_81xx_clkdm, + &alwon_l3_fast_81xx_clkdm, + &alwon_ethernet_81xx_clkdm, + &mmu_81xx_clkdm, + &mmu_cfg_81xx_clkdm, + &active_gem_816x_clkdm, + &ivahd0_816x_clkdm, + &ivahd1_816x_clkdm, + &ivahd2_816x_clkdm, + &sgx_816x_clkdm, + &default_l3_med_816x_clkdm, + &default_ducati_816x_clkdm, + &default_pci_816x_clkdm, + &default_l3_slow_81xx_clkdm, + &default_sata_81xx_clkdm, + NULL, +}; + +void __init ti816x_clockdomains_init(void) +{ + clkdm_register_platform_funcs(&am33xx_clkdm_operations); + clkdm_register_clkdms(clockdomains_ti816x); + clkdm_complete_init(); +} +#endif diff --git a/arch/arm/mach-omap2/cm-regbits-24xx.h b/arch/arm/mach-omap2/cm-regbits-24xx.h new file mode 100644 index 000000000..59c14dbb6 --- /dev/null +++ b/arch/arm/mach-omap2/cm-regbits-24xx.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ARCH_ARM_MACH_OMAP2_CM_REGBITS_24XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_REGBITS_24XX_H + +/* + * OMAP24XX Clock Management register bits + * + * Copyright (C) 2007 Texas Instruments, Inc. + * Copyright (C) 2007 Nokia Corporation + * + * Written by Paul Walmsley + */ + +#define OMAP24XX_AUTOSTATE_MPU_MASK (1 << 0) +#define OMAP24XX_EN_DSS1_MASK (1 << 0) +#define OMAP24XX_ST_MAILBOXES_SHIFT 30 +#define OMAP24XX_ST_HDQ_SHIFT 23 +#define OMAP2420_ST_I2C2_SHIFT 20 +#define OMAP2430_ST_I2CHS1_SHIFT 19 +#define OMAP2420_ST_I2C1_SHIFT 19 +#define OMAP2430_ST_I2CHS2_SHIFT 20 +#define OMAP24XX_ST_MCBSP2_SHIFT 16 +#define OMAP24XX_ST_MCBSP1_SHIFT 15 +#define OMAP2430_ST_MCBSP5_SHIFT 5 +#define OMAP2430_ST_MCBSP4_SHIFT 4 +#define OMAP2430_ST_MCBSP3_SHIFT 3 +#define OMAP24XX_ST_AES_SHIFT 3 +#define OMAP24XX_ST_RNG_SHIFT 2 +#define OMAP24XX_ST_SHA_SHIFT 1 +#define OMAP24XX_CLKSEL_DSS2_MASK (0x1 << 13) +#define OMAP24XX_AUTOSTATE_DSS_MASK (1 << 2) +#define OMAP24XX_AUTOSTATE_L4_MASK (1 << 1) +#define OMAP24XX_AUTOSTATE_L3_MASK (1 << 0) +#define OMAP24XX_AUTOSTATE_GFX_MASK (1 << 0) +#define OMAP24XX_ST_MPU_WDT_SHIFT 3 +#define OMAP24XX_ST_32KSYNC_SHIFT 1 +#define OMAP24XX_EN_54M_PLL_SHIFT 6 +#define OMAP24XX_EN_96M_PLL_SHIFT 2 +#define OMAP24XX_ST_54M_APLL_SHIFT 9 +#define OMAP24XX_ST_96M_APLL_SHIFT 8 +#define OMAP24XX_AUTO_54M_MASK (0x3 << 6) +#define OMAP24XX_AUTO_96M_MASK (0x3 << 2) +#define OMAP24XX_AUTO_DPLL_SHIFT 0 +#define OMAP24XX_AUTO_DPLL_MASK (0x3 << 0) +#define OMAP24XX_CORE_CLK_SRC_MASK (0x3 << 0) +#define OMAP2420_AUTOSTATE_IVA_MASK (1 << 8) +#define OMAP24XX_AUTOSTATE_DSP_MASK (1 << 0) +#define OMAP2430_AUTOSTATE_MDM_MASK (1 << 0) +#define OMAP24XX_CLKSTCTRL_DISABLE_AUTO 0x0 +#define OMAP24XX_CLKSTCTRL_ENABLE_AUTO 0x1 +#endif diff --git a/arch/arm/mach-omap2/cm-regbits-33xx.h b/arch/arm/mach-omap2/cm-regbits-33xx.h new file mode 100644 index 000000000..1b97219aa --- /dev/null +++ b/arch/arm/mach-omap2/cm-regbits-33xx.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * AM33XX Power Management register bits + * + * This file is automatically generated from the AM33XX hardware databases. + * Vaibhav Hiremath <hvaibhav@ti.com> + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + */ + + +#ifndef __ARCH_ARM_MACH_OMAP2_CM_REGBITS_33XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_REGBITS_33XX_H + +#define AM33XX_CLKOUT2DIV_SHIFT 3 +#define AM33XX_CLKOUT2DIV_WIDTH 3 +#define AM33XX_CLKOUT2EN_SHIFT 7 +#define AM33XX_CLKOUT2SOURCE_MASK (0x7 << 0) +#define AM33XX_CLKSEL_0_0_SHIFT 0 +#define AM33XX_CLKSEL_0_0_WIDTH 1 +#define AM33XX_CLKSEL_0_0_MASK (1 << 0) +#define AM33XX_CLKSEL_0_1_MASK (3 << 0) +#define AM33XX_CLKSEL_0_2_MASK (7 << 0) +#define AM33XX_CLKSEL_GFX_FCLK_MASK (1 << 1) +#define AM33XX_CLKTRCTRL_SHIFT 0 +#define AM33XX_CLKTRCTRL_MASK (0x3 << 0) +#define AM33XX_DPLL_CLKOUT_DIV_SHIFT 0 +#define AM33XX_DPLL_CLKOUT_DIV_WIDTH 5 +#define AM33XX_DPLL_DIV_MASK (0x7f << 0) +#define AM33XX_DPLL_PER_DIV_MASK (0xff << 0) +#define AM33XX_DPLL_EN_MASK (0x7 << 0) +#define AM33XX_DPLL_MULT_MASK (0x7ff << 8) +#define AM33XX_DPLL_MULT_PERIPH_MASK (0xfff << 8) +#define AM33XX_HSDIVIDER_CLKOUT1_DIV_SHIFT 0 +#define AM33XX_HSDIVIDER_CLKOUT1_DIV_WIDTH 5 +#define AM33XX_HSDIVIDER_CLKOUT2_DIV_SHIFT 0 +#define AM33XX_HSDIVIDER_CLKOUT2_DIV_WIDTH 5 +#define AM33XX_HSDIVIDER_CLKOUT3_DIV_SHIFT 0 +#define AM33XX_HSDIVIDER_CLKOUT3_DIV_WIDTH 5 +#define AM33XX_IDLEST_SHIFT 16 +#define AM33XX_IDLEST_MASK (0x3 << 16) +#define AM33XX_MODULEMODE_SHIFT 0 +#define AM33XX_MODULEMODE_MASK (0x3 << 0) +#define AM33XX_OPTCLK_DEBUG_CLKA_SHIFT 30 +#define AM33XX_OPTFCLKEN_DBGSYSCLK_SHIFT 19 +#define AM33XX_OPTFCLKEN_GPIO0_GDBCLK_SHIFT 18 +#define AM33XX_OPTFCLKEN_GPIO_1_GDBCLK_SHIFT 18 +#define AM33XX_OPTFCLKEN_GPIO_2_GDBCLK_SHIFT 18 +#define AM33XX_OPTFCLKEN_GPIO_3_GDBCLK_SHIFT 18 +#define AM33XX_STM_PMD_CLKDIVSEL_SHIFT 27 +#define AM33XX_STM_PMD_CLKDIVSEL_WIDTH 3 +#define AM33XX_STM_PMD_CLKSEL_SHIFT 22 +#define AM33XX_STM_PMD_CLKSEL_WIDTH 2 +#define AM33XX_ST_DPLL_CLK_MASK (1 << 0) +#define AM33XX_ST_DPLL_CLKDCOLDO_SHIFT 8 +#define AM33XX_TRC_PMD_CLKDIVSEL_SHIFT 24 +#define AM33XX_TRC_PMD_CLKDIVSEL_WIDTH 3 +#define AM33XX_TRC_PMD_CLKSEL_SHIFT 20 +#define AM33XX_TRC_PMD_CLKSEL_WIDTH 2 +#endif diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h new file mode 100644 index 000000000..037529a9e --- /dev/null +++ b/arch/arm/mach-omap2/cm-regbits-34xx.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ARCH_ARM_MACH_OMAP2_CM_REGBITS_34XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_REGBITS_34XX_H + +/* + * OMAP3430 Clock Management register bits + * + * Copyright (C) 2007-2008 Texas Instruments, Inc. + * Copyright (C) 2007-2008 Nokia Corporation + * + * Written by Paul Walmsley + */ + +#define OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_MASK (1 << 0) +#define OMAP3430_ST_IVA2_SHIFT 0 +#define OMAP3430_CLKTRCTRL_IVA2_MASK (0x3 << 0) +#define OMAP3430_CLKACTIVITY_IVA2_MASK (1 << 0) +#define OMAP3430_CLKTRCTRL_MPU_MASK (0x3 << 0) +#define OMAP3430_ST_AES2_SHIFT 28 +#define OMAP3430_ST_SHA12_SHIFT 27 +#define AM35XX_ST_UART4_SHIFT 23 +#define OMAP3430_ST_HDQ_SHIFT 22 +#define OMAP3430ES2_ST_SSI_IDLE_SHIFT 8 +#define OMAP3430_ST_MAILBOXES_SHIFT 7 +#define OMAP3430_ST_SAD2D_SHIFT 3 +#define OMAP3430_ST_SDMA_SHIFT 2 +#define OMAP3430ES2_ST_USBTLL_SHIFT 2 +#define OMAP3430ES1_CLKTRCTRL_D2D_MASK (0x3 << 4) +#define OMAP3430_CLKTRCTRL_L4_MASK (0x3 << 2) +#define OMAP3430_CLKTRCTRL_L3_MASK (0x3 << 0) +#define OMAP3430ES1_CLKTRCTRL_GFX_MASK (0x3 << 0) +#define OMAP3430ES2_CLKTRCTRL_SGX_MASK (0x3 << 0) +#define OMAP3430_ST_WDT2_SHIFT 5 +#define OMAP3430_ST_32KSYNC_SHIFT 2 +#define OMAP3430_AUTO_PERIPH_DPLL_MASK (0x7 << 3) +#define OMAP3430ES2_ST_DSS_IDLE_SHIFT 1 +#define OMAP3430_CLKTRCTRL_DSS_MASK (0x3 << 0) +#define OMAP3430_CLKTRCTRL_CAM_MASK (0x3 << 0) +#define OMAP3430_ST_MCBSP4_SHIFT 2 +#define OMAP3430_ST_MCBSP3_SHIFT 1 +#define OMAP3430_ST_MCBSP2_SHIFT 0 +#define OMAP3430_CLKTRCTRL_PER_MASK (0x3 << 0) +#define OMAP3430_CLKTRCTRL_EMU_MASK (0x3 << 0) +#define OMAP3430_CLKTRCTRL_NEON_MASK (0x3 << 0) +#define OMAP3430ES2_EN_USBHOST2_SHIFT 1 +#define OMAP3430ES2_ST_USBHOST_IDLE_SHIFT 1 +#define OMAP3430ES2_CLKTRCTRL_USBHOST_MASK (3 << 0) +#define OMAP34XX_CLKSTCTRL_DISABLE_AUTO 0x0 +#define OMAP34XX_CLKSTCTRL_FORCE_SLEEP 0x1 +#define OMAP34XX_CLKSTCTRL_FORCE_WAKEUP 0x2 +#define OMAP34XX_CLKSTCTRL_ENABLE_AUTO 0x3 +#endif diff --git a/arch/arm/mach-omap2/cm-regbits-44xx.h b/arch/arm/mach-omap2/cm-regbits-44xx.h new file mode 100644 index 000000000..553a6267e --- /dev/null +++ b/arch/arm/mach-omap2/cm-regbits-44xx.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx Clock Management register bits + * + * Copyright (C) 2009-2012 Texas Instruments, Inc. + * Copyright (C) 2009-2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM_REGBITS_44XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_REGBITS_44XX_H + +#define OMAP4430_ABE_STATDEP_SHIFT 3 +#define OMAP4430_CLKTRCTRL_SHIFT 0 +#define OMAP4430_CLKTRCTRL_MASK (0x3 << 0) +#define OMAP4430_DSS_STATDEP_SHIFT 8 +#define OMAP4430_DUCATI_STATDEP_SHIFT 0 +#define OMAP4430_GFX_STATDEP_SHIFT 10 +#define OMAP4430_IDLEST_SHIFT 16 +#define OMAP4430_IDLEST_MASK (0x3 << 16) +#define OMAP4430_IVAHD_STATDEP_SHIFT 2 +#define OMAP4430_L3INIT_STATDEP_SHIFT 7 +#define OMAP4430_L3_1_STATDEP_SHIFT 5 +#define OMAP4430_L3_2_STATDEP_SHIFT 6 +#define OMAP4430_L4CFG_STATDEP_SHIFT 12 +#define OMAP4430_L4PER_STATDEP_SHIFT 13 +#define OMAP4430_L4SEC_STATDEP_SHIFT 14 +#define OMAP4430_L4WKUP_STATDEP_SHIFT 15 +#define OMAP4430_MEMIF_STATDEP_SHIFT 4 +#define OMAP4430_MODULEMODE_SHIFT 0 +#define OMAP4430_MODULEMODE_MASK (0x3 << 0) +#define OMAP4430_TESLA_STATDEP_SHIFT 1 +#endif diff --git a/arch/arm/mach-omap2/cm-regbits-54xx.h b/arch/arm/mach-omap2/cm-regbits-54xx.h new file mode 100644 index 000000000..fc8868838 --- /dev/null +++ b/arch/arm/mach-omap2/cm-regbits-54xx.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP54xx Clock Management register bits + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM_REGBITS_54XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_REGBITS_54XX_H + +#define OMAP54XX_ABE_STATDEP_SHIFT 3 +#define OMAP54XX_AUTO_DPLL_MODE_MASK (0x7 << 0) +#define OMAP54XX_CLKSEL_SHIFT 24 +#define OMAP54XX_CLKSEL_WIDTH 0x1 +#define OMAP54XX_CLKSEL_0_0_SHIFT 0 +#define OMAP54XX_CLKSEL_0_0_WIDTH 0x1 +#define OMAP54XX_CLKSEL_AESS_FCLK_SHIFT 24 +#define OMAP54XX_CLKSEL_AESS_FCLK_WIDTH 0x1 +#define OMAP54XX_CLKSEL_DIV_SHIFT 25 +#define OMAP54XX_CLKSEL_DIV_WIDTH 0x1 +#define OMAP54XX_CLKSEL_FCLK_SHIFT 24 +#define OMAP54XX_CLKSEL_FCLK_WIDTH 0x1 +#define OMAP54XX_CLKSEL_GPU_CORE_GCLK_SHIFT 24 +#define OMAP54XX_CLKSEL_GPU_CORE_GCLK_WIDTH 0x1 +#define OMAP54XX_CLKSEL_GPU_HYD_GCLK_SHIFT 25 +#define OMAP54XX_CLKSEL_GPU_HYD_GCLK_WIDTH 0x1 +#define OMAP54XX_CLKSEL_INTERNAL_SOURCE_SHIFT 26 +#define OMAP54XX_CLKSEL_INTERNAL_SOURCE_WIDTH 0x2 +#define OMAP54XX_CLKSEL_OPP_SHIFT 0 +#define OMAP54XX_CLKSEL_OPP_WIDTH 0x2 +#define OMAP54XX_CLKSEL_SOURCE_SHIFT 24 +#define OMAP54XX_CLKSEL_SOURCE_WIDTH 0x2 +#define OMAP54XX_CLKSEL_SOURCE_L3INIT_MMC1_SHIFT 24 +#define OMAP54XX_CLKSEL_SOURCE_L3INIT_MMC1_WIDTH 0x1 +#define OMAP54XX_CLKSEL_UTMI_P1_SHIFT 24 +#define OMAP54XX_CLKSEL_UTMI_P1_WIDTH 0x1 +#define OMAP54XX_CLKSEL_UTMI_P2_SHIFT 25 +#define OMAP54XX_CLKSEL_UTMI_P2_WIDTH 0x1 +#define OMAP54XX_DIVHS_MASK (0x3f << 0) +#define OMAP54XX_DIVHS_0_4_MASK (0x1f << 0) +#define OMAP54XX_DIVHS_0_6_MASK (0x7f << 0) +#define OMAP54XX_DPLL_DIV_MASK (0x7f << 0) +#define OMAP54XX_DPLL_EN_MASK (0x7 << 0) +#define OMAP54XX_DPLL_LPMODE_EN_MASK (1 << 10) +#define OMAP54XX_DPLL_MULT_MASK (0x7ff << 8) +#define OMAP54XX_DPLL_REGM4XEN_MASK (1 << 11) +#define OMAP54XX_DPLL_SD_DIV_MASK (0xff << 24) +#define OMAP54XX_DSP_STATDEP_SHIFT 1 +#define OMAP54XX_DSS_STATDEP_SHIFT 8 +#define OMAP54XX_EMIF_STATDEP_SHIFT 4 +#define OMAP54XX_GPU_STATDEP_SHIFT 10 +#define OMAP54XX_IPU_STATDEP_SHIFT 0 +#define OMAP54XX_IVA_STATDEP_SHIFT 2 +#define OMAP54XX_L3INIT_STATDEP_SHIFT 7 +#define OMAP54XX_L3MAIN1_STATDEP_SHIFT 5 +#define OMAP54XX_L3MAIN2_STATDEP_SHIFT 6 +#define OMAP54XX_L4CFG_STATDEP_SHIFT 12 +#define OMAP54XX_L4PER_STATDEP_SHIFT 13 +#define OMAP54XX_L4SEC_STATDEP_SHIFT 14 +#define OMAP54XX_OPTFCLKEN_32KHZ_CLK_SHIFT 11 +#define OMAP54XX_OPTFCLKEN_32KHZ_CLK_8_8_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_48MHZ_CLK_SHIFT 9 +#define OMAP54XX_OPTFCLKEN_CLK32K_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_CTRLCLK_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_DBCLK_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_DSSCLK_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_HSIC480M_P1_CLK_SHIFT 13 +#define OMAP54XX_OPTFCLKEN_HSIC480M_P2_CLK_SHIFT 14 +#define OMAP54XX_OPTFCLKEN_HSIC480M_P3_CLK_SHIFT 7 +#define OMAP54XX_OPTFCLKEN_HSIC60M_P1_CLK_SHIFT 11 +#define OMAP54XX_OPTFCLKEN_HSIC60M_P2_CLK_SHIFT 12 +#define OMAP54XX_OPTFCLKEN_HSIC60M_P3_CLK_SHIFT 6 +#define OMAP54XX_OPTFCLKEN_REFCLK960M_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_REF_CLK_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_SLIMBUS_CLK_SHIFT 11 +#define OMAP54XX_OPTFCLKEN_SYS_CLK_SHIFT 10 +#define OMAP54XX_OPTFCLKEN_TXPHY_CLK_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_TXPHY_LS_CLK_SHIFT 9 +#define OMAP54XX_OPTFCLKEN_USB_CH0_CLK_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_USB_CH1_CLK_SHIFT 9 +#define OMAP54XX_OPTFCLKEN_USB_CH2_CLK_SHIFT 10 +#define OMAP54XX_OPTFCLKEN_UTMI_P1_CLK_SHIFT 8 +#define OMAP54XX_OPTFCLKEN_UTMI_P2_CLK_SHIFT 9 +#define OMAP54XX_OPTFCLKEN_UTMI_P3_CLK_SHIFT 10 +#define OMAP54XX_PAD_CLKS_GATE_SHIFT 8 +#define OMAP54XX_SLIMBUS1_CLK_GATE_SHIFT 10 +#define OMAP54XX_ST_DPLL_CLK_MASK (1 << 0) +#define OMAP54XX_SYS_CLKSEL_SHIFT 0 +#define OMAP54XX_SYS_CLKSEL_WIDTH 0x3 +#define OMAP54XX_WKUPAON_STATDEP_SHIFT 15 +#endif diff --git a/arch/arm/mach-omap2/cm-regbits-7xx.h b/arch/arm/mach-omap2/cm-regbits-7xx.h new file mode 100644 index 000000000..2725af4d1 --- /dev/null +++ b/arch/arm/mach-omap2/cm-regbits-7xx.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * DRA7xx Clock Management register bits + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Generated by code originally written by: + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM_REGBITS_7XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_REGBITS_7XX_H + +#define DRA7XX_ATL_STATDEP_SHIFT 30 +#define DRA7XX_CAM_STATDEP_SHIFT 9 +#define DRA7XX_DSP1_STATDEP_SHIFT 1 +#define DRA7XX_DSP2_STATDEP_SHIFT 18 +#define DRA7XX_DSS_STATDEP_SHIFT 8 +#define DRA7XX_EMIF_STATDEP_SHIFT 4 +#define DRA7XX_EVE1_STATDEP_SHIFT 19 +#define DRA7XX_EVE2_STATDEP_SHIFT 20 +#define DRA7XX_EVE3_STATDEP_SHIFT 21 +#define DRA7XX_EVE4_STATDEP_SHIFT 22 +#define DRA7XX_GMAC_STATDEP_SHIFT 25 +#define DRA7XX_GPU_STATDEP_SHIFT 10 +#define DRA7XX_IPU1_STATDEP_SHIFT 23 +#define DRA7XX_IPU2_STATDEP_SHIFT 0 +#define DRA7XX_IPU_STATDEP_SHIFT 24 +#define DRA7XX_IVA_STATDEP_SHIFT 2 +#define DRA7XX_L3INIT_STATDEP_SHIFT 7 +#define DRA7XX_L3MAIN1_STATDEP_SHIFT 5 +#define DRA7XX_L4CFG_STATDEP_SHIFT 12 +#define DRA7XX_L4PER2_STATDEP_SHIFT 26 +#define DRA7XX_L4PER3_STATDEP_SHIFT 27 +#define DRA7XX_L4PER_STATDEP_SHIFT 13 +#define DRA7XX_L4SEC_STATDEP_SHIFT 14 +#define DRA7XX_PCIE_STATDEP_SHIFT 29 +#define DRA7XX_VPE_STATDEP_SHIFT 28 +#define DRA7XX_WKUPAON_STATDEP_SHIFT 15 +#endif diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h new file mode 100644 index 000000000..14beb59e5 --- /dev/null +++ b/arch/arm/mach-omap2/cm.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2+ Clock Management prototypes + * + * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc. + * Copyright (C) 2007-2009 Nokia Corporation + * + * Written by Paul Walmsley + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM_H +#define __ARCH_ASM_MACH_OMAP2_CM_H + +/* + * MAX_MODULE_READY_TIME: max duration in microseconds to wait for the + * PRCM to request that a module exit the inactive state in the case of + * OMAP2 & 3. + * In the case of OMAP4 this is the max duration in microseconds for the + * module to reach the functionnal state from an inactive state. + */ +#define MAX_MODULE_READY_TIME 2000 + +# ifndef __ASSEMBLER__ +#include <linux/clk/ti.h> + +#include "prcm-common.h" + +extern struct omap_domain_base cm_base; +extern struct omap_domain_base cm2_base; +# endif + +/* + * MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for + * the PRCM to request that a module enter the inactive state in the + * case of OMAP2 & 3. In the case of OMAP4 this is the max duration + * in microseconds for the module to reach the inactive state from + * a functional state. + * XXX FSUSB on OMAP4430 takes ~4ms to idle after reset during + * kernel init. + */ +#define MAX_MODULE_DISABLE_TIME 5000 + +# ifndef __ASSEMBLER__ + +/** + * struct cm_ll_data - fn ptrs to per-SoC CM function implementations + * @split_idlest_reg: ptr to the SoC CM-specific split_idlest_reg impl + * @wait_module_ready: ptr to the SoC CM-specific wait_module_ready impl + * @wait_module_idle: ptr to the SoC CM-specific wait_module_idle impl + * @module_enable: ptr to the SoC CM-specific module_enable impl + * @module_disable: ptr to the SoC CM-specific module_disable impl + * @xlate_clkctrl: ptr to the SoC CM-specific clkctrl xlate addr impl + */ +struct cm_ll_data { + int (*split_idlest_reg)(struct clk_omap_reg *idlest_reg, s16 *prcm_inst, + u8 *idlest_reg_id); + int (*wait_module_ready)(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift); + int (*wait_module_idle)(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift); + void (*module_enable)(u8 mode, u8 part, u16 inst, u16 clkctrl_offs); + void (*module_disable)(u8 part, u16 inst, u16 clkctrl_offs); + u32 (*xlate_clkctrl)(u8 part, u16 inst, u16 clkctrl_offs); +}; + +extern int cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, s16 *prcm_inst, + u8 *idlest_reg_id); +int omap_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift); +int omap_cm_wait_module_idle(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift); +int omap_cm_module_enable(u8 mode, u8 part, u16 inst, u16 clkctrl_offs); +int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs); +u32 omap_cm_xlate_clkctrl(u8 part, u16 inst, u16 clkctrl_offs); +extern int cm_register(const struct cm_ll_data *cld); +extern int cm_unregister(const struct cm_ll_data *cld); +int omap_cm_init(void); +int omap2_cm_base_init(void); + +# endif + +#endif diff --git a/arch/arm/mach-omap2/cm1_44xx.h b/arch/arm/mach-omap2/cm1_44xx.h new file mode 100644 index 000000000..13710cefa --- /dev/null +++ b/arch/arm/mach-omap2/cm1_44xx.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx CM1 instance offset macros + * + * Copyright (C) 2009-2011 Texas Instruments, Inc. + * Copyright (C) 2009-2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + * + * XXX This file needs to be updated to align on one of "OMAP4", "OMAP44XX", + * or "OMAP4430". + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM1_44XX_H +#define __ARCH_ARM_MACH_OMAP2_CM1_44XX_H + +/* CM1 base address */ +#define OMAP4430_CM1_BASE 0x4a004000 + +#define OMAP44XX_CM1_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP4430_CM1_BASE + (inst) + (reg)) + +/* CM1 instances */ +#define OMAP4430_CM1_OCP_SOCKET_INST 0x0000 +#define OMAP4430_CM1_CKGEN_INST 0x0100 +#define OMAP4430_CM1_MPU_INST 0x0300 +#define OMAP4430_CM1_TESLA_INST 0x0400 +#define OMAP4430_CM1_ABE_INST 0x0500 + +/* CM1 clockdomain register offsets (from instance start) */ +#define OMAP4430_CM1_MPU_MPU_CDOFFS 0x0000 +#define OMAP4430_CM1_TESLA_TESLA_CDOFFS 0x0000 +#define OMAP4430_CM1_ABE_ABE_CDOFFS 0x0000 + +#endif diff --git a/arch/arm/mach-omap2/cm1_54xx.h b/arch/arm/mach-omap2/cm1_54xx.h new file mode 100644 index 000000000..fdca20aa4 --- /dev/null +++ b/arch/arm/mach-omap2/cm1_54xx.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP54xx CM1 instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM1_54XX_H +#define __ARCH_ARM_MACH_OMAP2_CM1_54XX_H + +/* CM1 base address */ +#define OMAP54XX_CM_CORE_AON_BASE 0x4a004000 + +#define OMAP54XX_CM_CORE_AON_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE + (inst) + (reg)) + +/* CM_CORE_AON instances */ +#define OMAP54XX_CM_CORE_AON_OCP_SOCKET_INST 0x0000 +#define OMAP54XX_CM_CORE_AON_CKGEN_INST 0x0100 +#define OMAP54XX_CM_CORE_AON_MPU_INST 0x0300 +#define OMAP54XX_CM_CORE_AON_DSP_INST 0x0400 +#define OMAP54XX_CM_CORE_AON_ABE_INST 0x0500 + +/* CM_CORE_AON clockdomain register offsets (from instance start) */ +#define OMAP54XX_CM_CORE_AON_MPU_MPU_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_AON_DSP_DSP_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_AON_ABE_ABE_CDOFFS 0x0000 + +#endif diff --git a/arch/arm/mach-omap2/cm1_7xx.h b/arch/arm/mach-omap2/cm1_7xx.h new file mode 100644 index 000000000..a543eb3db --- /dev/null +++ b/arch/arm/mach-omap2/cm1_7xx.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * DRA7xx CM1 instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Generated by code originally written by: + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM1_7XX_H +#define __ARCH_ARM_MACH_OMAP2_CM1_7XX_H + +/* CM1 base address */ +#define DRA7XX_CM_CORE_AON_BASE 0x4a005000 + +#define DRA7XX_CM_CORE_AON_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(DRA7XX_CM_CORE_AON_BASE + (inst) + (reg)) + +/* CM_CORE_AON instances */ +#define DRA7XX_CM_CORE_AON_OCP_SOCKET_INST 0x0000 +#define DRA7XX_CM_CORE_AON_CKGEN_INST 0x0100 +#define DRA7XX_CM_CORE_AON_MPU_INST 0x0300 +#define DRA7XX_CM_CORE_AON_DSP1_INST 0x0400 +#define DRA7XX_CM_CORE_AON_IPU_INST 0x0500 +#define DRA7XX_CM_CORE_AON_DSP2_INST 0x0600 +#define DRA7XX_CM_CORE_AON_EVE1_INST 0x0640 +#define DRA7XX_CM_CORE_AON_EVE2_INST 0x0680 +#define DRA7XX_CM_CORE_AON_EVE3_INST 0x06c0 +#define DRA7XX_CM_CORE_AON_EVE4_INST 0x0700 +#define DRA7XX_CM_CORE_AON_RTC_INST 0x0740 +#define DRA7XX_CM_CORE_AON_VPE_INST 0x0760 + +/* CM_CORE_AON clockdomain register offsets (from instance start) */ +#define DRA7XX_CM_CORE_AON_MPU_MPU_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_DSP1_DSP1_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_IPU_IPU1_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_IPU_IPU_CDOFFS 0x0040 +#define DRA7XX_CM_CORE_AON_DSP2_DSP2_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_EVE1_EVE1_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_EVE2_EVE2_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_EVE3_EVE3_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_EVE4_EVE4_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_RTC_RTC_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_AON_VPE_VPE_CDOFFS 0x0000 + +#endif diff --git a/arch/arm/mach-omap2/cm2_44xx.h b/arch/arm/mach-omap2/cm2_44xx.h new file mode 100644 index 000000000..7f9b7a81f --- /dev/null +++ b/arch/arm/mach-omap2/cm2_44xx.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx CM2 instance offset macros + * + * Copyright (C) 2009-2011 Texas Instruments, Inc. + * Copyright (C) 2009-2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + * + * XXX This file needs to be updated to align on one of "OMAP4", "OMAP44XX", + * or "OMAP4430". + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM2_44XX_H +#define __ARCH_ARM_MACH_OMAP2_CM2_44XX_H + +/* CM2 base address */ +#define OMAP4430_CM2_BASE 0x4a008000 + +#define OMAP44XX_CM2_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE + (inst) + (reg)) + +/* CM2 instances */ +#define OMAP4430_CM2_OCP_SOCKET_INST 0x0000 +#define OMAP4430_CM2_CKGEN_INST 0x0100 +#define OMAP4430_CM2_ALWAYS_ON_INST 0x0600 +#define OMAP4430_CM2_CORE_INST 0x0700 +#define OMAP4430_CM2_IVAHD_INST 0x0f00 +#define OMAP4430_CM2_CAM_INST 0x1000 +#define OMAP4430_CM2_DSS_INST 0x1100 +#define OMAP4430_CM2_GFX_INST 0x1200 +#define OMAP4430_CM2_L3INIT_INST 0x1300 +#define OMAP4430_CM2_L4PER_INST 0x1400 +#define OMAP4430_CM2_CEFUSE_INST 0x1600 + +/* CM2 clockdomain register offsets (from instance start) */ +#define OMAP4430_CM2_ALWAYS_ON_ALWON_CDOFFS 0x0000 +#define OMAP4430_CM2_CORE_L3_1_CDOFFS 0x0000 +#define OMAP4430_CM2_CORE_L3_2_CDOFFS 0x0100 +#define OMAP4430_CM2_CORE_DUCATI_CDOFFS 0x0200 +#define OMAP4430_CM2_CORE_SDMA_CDOFFS 0x0300 +#define OMAP4430_CM2_CORE_MEMIF_CDOFFS 0x0400 +#define OMAP4430_CM2_CORE_D2D_CDOFFS 0x0500 +#define OMAP4430_CM2_CORE_L4CFG_CDOFFS 0x0600 +#define OMAP4430_CM2_CORE_L3INSTR_CDOFFS 0x0700 +#define OMAP4430_CM2_IVAHD_IVAHD_CDOFFS 0x0000 +#define OMAP4430_CM2_CAM_CAM_CDOFFS 0x0000 +#define OMAP4430_CM2_DSS_DSS_CDOFFS 0x0000 +#define OMAP4430_CM2_GFX_GFX_CDOFFS 0x0000 +#define OMAP4430_CM2_L3INIT_L3INIT_CDOFFS 0x0000 +#define OMAP4430_CM2_L4PER_L4PER_CDOFFS 0x0000 +#define OMAP4430_CM2_L4PER_L4SEC_CDOFFS 0x0180 +#define OMAP4430_CM2_CEFUSE_CEFUSE_CDOFFS 0x0000 + +#endif diff --git a/arch/arm/mach-omap2/cm2_54xx.h b/arch/arm/mach-omap2/cm2_54xx.h new file mode 100644 index 000000000..7e5860578 --- /dev/null +++ b/arch/arm/mach-omap2/cm2_54xx.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP54xx CM2 instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM2_54XX_H +#define __ARCH_ARM_MACH_OMAP2_CM2_54XX_H + +/* CM2 base address */ +#define OMAP54XX_CM_CORE_BASE 0x4a008000 + +#define OMAP54XX_CM_CORE_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE + (inst) + (reg)) + +/* CM_CORE instances */ +#define OMAP54XX_CM_CORE_OCP_SOCKET_INST 0x0000 +#define OMAP54XX_CM_CORE_CKGEN_INST 0x0100 +#define OMAP54XX_CM_CORE_COREAON_INST 0x0600 +#define OMAP54XX_CM_CORE_CORE_INST 0x0700 +#define OMAP54XX_CM_CORE_IVA_INST 0x1200 +#define OMAP54XX_CM_CORE_CAM_INST 0x1300 +#define OMAP54XX_CM_CORE_DSS_INST 0x1400 +#define OMAP54XX_CM_CORE_GPU_INST 0x1500 +#define OMAP54XX_CM_CORE_L3INIT_INST 0x1600 +#define OMAP54XX_CM_CORE_CUSTEFUSE_INST 0x1700 + +/* CM_CORE clockdomain register offsets (from instance start) */ +#define OMAP54XX_CM_CORE_COREAON_COREAON_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_CORE_L3MAIN1_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_CORE_L3MAIN2_CDOFFS 0x0100 +#define OMAP54XX_CM_CORE_CORE_IPU_CDOFFS 0x0200 +#define OMAP54XX_CM_CORE_CORE_DMA_CDOFFS 0x0300 +#define OMAP54XX_CM_CORE_CORE_EMIF_CDOFFS 0x0400 +#define OMAP54XX_CM_CORE_CORE_C2C_CDOFFS 0x0500 +#define OMAP54XX_CM_CORE_CORE_L4CFG_CDOFFS 0x0600 +#define OMAP54XX_CM_CORE_CORE_L3INSTR_CDOFFS 0x0700 +#define OMAP54XX_CM_CORE_CORE_MIPIEXT_CDOFFS 0x0800 +#define OMAP54XX_CM_CORE_CORE_L4PER_CDOFFS 0x0900 +#define OMAP54XX_CM_CORE_CORE_L4SEC_CDOFFS 0x0a80 +#define OMAP54XX_CM_CORE_IVA_IVA_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_CAM_CAM_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_DSS_DSS_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_GPU_GPU_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_L3INIT_L3INIT_CDOFFS 0x0000 +#define OMAP54XX_CM_CORE_CUSTEFUSE_CUSTEFUSE_CDOFFS 0x0000 + +#endif diff --git a/arch/arm/mach-omap2/cm2_7xx.h b/arch/arm/mach-omap2/cm2_7xx.h new file mode 100644 index 000000000..af63b4b87 --- /dev/null +++ b/arch/arm/mach-omap2/cm2_7xx.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * DRA7xx CM2 instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Generated by code originally written by: + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM2_7XX_H +#define __ARCH_ARM_MACH_OMAP2_CM2_7XX_H + +/* CM2 base address */ +#define DRA7XX_CM_CORE_BASE 0x4a008000 + +#define DRA7XX_CM_CORE_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(DRA7XX_CM_CORE_BASE + (inst) + (reg)) + +/* CM_CORE instances */ +#define DRA7XX_CM_CORE_OCP_SOCKET_INST 0x0000 +#define DRA7XX_CM_CORE_CKGEN_INST 0x0104 +#define DRA7XX_CM_CORE_COREAON_INST 0x0600 +#define DRA7XX_CM_CORE_CORE_INST 0x0700 +#define DRA7XX_CM_CORE_IVA_INST 0x0f00 +#define DRA7XX_CM_CORE_CAM_INST 0x1000 +#define DRA7XX_CM_CORE_DSS_INST 0x1100 +#define DRA7XX_CM_CORE_GPU_INST 0x1200 +#define DRA7XX_CM_CORE_L3INIT_INST 0x1300 +#define DRA7XX_CM_CORE_CUSTEFUSE_INST 0x1600 +#define DRA7XX_CM_CORE_L4PER_INST 0x1700 + +/* CM_CORE clockdomain register offsets (from instance start) */ +#define DRA7XX_CM_CORE_COREAON_COREAON_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_CORE_L3MAIN1_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_CORE_IPU2_CDOFFS 0x0200 +#define DRA7XX_CM_CORE_CORE_DMA_CDOFFS 0x0300 +#define DRA7XX_CM_CORE_CORE_EMIF_CDOFFS 0x0400 +#define DRA7XX_CM_CORE_CORE_ATL_CDOFFS 0x0520 +#define DRA7XX_CM_CORE_CORE_L4CFG_CDOFFS 0x0600 +#define DRA7XX_CM_CORE_CORE_L3INSTR_CDOFFS 0x0700 +#define DRA7XX_CM_CORE_IVA_IVA_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_CAM_CAM_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_DSS_DSS_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_GPU_GPU_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_L3INIT_L3INIT_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_L3INIT_PCIE_CDOFFS 0x00a0 +#define DRA7XX_CM_CORE_L3INIT_GMAC_CDOFFS 0x00c0 +#define DRA7XX_CM_CORE_CUSTEFUSE_CUSTEFUSE_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_L4PER_L4PER_CDOFFS 0x0000 +#define DRA7XX_CM_CORE_L4PER_L4SEC_CDOFFS 0x0180 +#define DRA7XX_CM_CORE_L4PER_L4PER2_CDOFFS 0x01fc +#define DRA7XX_CM_CORE_L4PER_L4PER3_CDOFFS 0x0210 + +#endif diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c new file mode 100644 index 000000000..1c6d69f4b --- /dev/null +++ b/arch/arm/mach-omap2/cm2xxx.c @@ -0,0 +1,302 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2xxx CM module functions + * + * Copyright (C) 2009 Nokia Corporation + * Copyright (C) 2008-2010, 2012 Texas Instruments, Inc. + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "prm2xxx.h" +#include "cm.h" +#include "cm2xxx.h" +#include "cm-regbits-24xx.h" +#include "clockdomain.h" + +/* CM_AUTOIDLE_PLL.AUTO_* bit values for DPLLs */ +#define DPLL_AUTOIDLE_DISABLE 0x0 +#define OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP 0x3 + +/* CM_AUTOIDLE_PLL.AUTO_* bit values for APLLs (OMAP2xxx only) */ +#define OMAP2XXX_APLL_AUTOIDLE_DISABLE 0x0 +#define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP 0x3 + +/* CM_IDLEST_PLL bit value offset for APLLs (OMAP2xxx only) */ +#define EN_APLL_LOCKED 3 + +static const u8 omap2xxx_cm_idlest_offs[] = { + CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3, OMAP24XX_CM_IDLEST4 +}; + +/* + * + */ + +static void _write_clktrctrl(u8 c, s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= ~mask; + v |= c << __ffs(mask); + omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL); +} + +static bool omap2xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= mask; + v >>= __ffs(mask); + + return (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; +} + +static void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask); +} + +static void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask); +} + +/* + * DPLL autoidle control + */ + +static void _omap2xxx_set_dpll_autoidle(u8 m) +{ + u32 v; + + v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); + v &= ~OMAP24XX_AUTO_DPLL_MASK; + v |= m << OMAP24XX_AUTO_DPLL_SHIFT; + omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE); +} + +void omap2xxx_cm_set_dpll_disable_autoidle(void) +{ + _omap2xxx_set_dpll_autoidle(OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP); +} + +void omap2xxx_cm_set_dpll_auto_low_power_stop(void) +{ + _omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE); +} + +/** + * omap2xxx_cm_split_idlest_reg - split CM_IDLEST reg addr into its components + * @idlest_reg: CM_IDLEST* virtual address + * @prcm_inst: pointer to an s16 to return the PRCM instance offset + * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID + * + * XXX This function is only needed until absolute register addresses are + * removed from the OMAP struct clk records. + */ +static int omap2xxx_cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, + s16 *prcm_inst, + u8 *idlest_reg_id) +{ + unsigned long offs; + u8 idlest_offs; + int i; + + idlest_offs = idlest_reg->offset & 0xff; + for (i = 0; i < ARRAY_SIZE(omap2xxx_cm_idlest_offs); i++) { + if (idlest_offs == omap2xxx_cm_idlest_offs[i]) { + *idlest_reg_id = i + 1; + break; + } + } + + if (i == ARRAY_SIZE(omap2xxx_cm_idlest_offs)) + return -EINVAL; + + offs = idlest_reg->offset; + offs &= 0xff00; + *prcm_inst = offs; + + return 0; +} + +/* + * + */ + +/** + * omap2xxx_cm_wait_module_ready - wait for a module to leave idle or standby + * @part: PRCM partition, ignored for OMAP2 + * @prcm_mod: PRCM module offset + * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon + * success or -EBUSY if the module doesn't enable in time. + */ +static int omap2xxx_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_id, + u8 idlest_shift) +{ + int ena = 0, i = 0; + u8 cm_idlest_reg; + u32 mask; + + if (!idlest_id || (idlest_id > ARRAY_SIZE(omap2xxx_cm_idlest_offs))) + return -EINVAL; + + cm_idlest_reg = omap2xxx_cm_idlest_offs[idlest_id - 1]; + + mask = 1 << idlest_shift; + ena = mask; + + omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & + mask) == ena), MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + +/* Clockdomain low-level functions */ + +static void omap2xxx_clkdm_allow_idle(struct clockdomain *clkdm) +{ + omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); +} + +static void omap2xxx_clkdm_deny_idle(struct clockdomain *clkdm) +{ + omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); +} + +static int omap2xxx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + if (!hwsup && clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap2xxx_clkdm_wakeup(clkdm); + + return 0; +} + +static int omap2xxx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + hwsup = omap2xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (!hwsup && clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap2xxx_clkdm_sleep(clkdm); + + return 0; +} + +struct clkdm_ops omap2_clkdm_operations = { + .clkdm_add_wkdep = omap2_clkdm_add_wkdep, + .clkdm_del_wkdep = omap2_clkdm_del_wkdep, + .clkdm_read_wkdep = omap2_clkdm_read_wkdep, + .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps, + .clkdm_sleep = omap2xxx_clkdm_sleep, + .clkdm_wakeup = omap2xxx_clkdm_wakeup, + .clkdm_allow_idle = omap2xxx_clkdm_allow_idle, + .clkdm_deny_idle = omap2xxx_clkdm_deny_idle, + .clkdm_clk_enable = omap2xxx_clkdm_clk_enable, + .clkdm_clk_disable = omap2xxx_clkdm_clk_disable, +}; + +int omap2xxx_cm_fclks_active(void) +{ + u32 f1, f2; + + f1 = omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + f2 = omap2_cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2); + + return (f1 | f2) ? 1 : 0; +} + +int omap2xxx_cm_mpu_retention_allowed(void) +{ + u32 l; + + /* Check for MMC, UART2, UART1, McSPI2, McSPI1 and DSS1. */ + l = omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + if (l & (OMAP2420_EN_MMC_MASK | OMAP24XX_EN_UART2_MASK | + OMAP24XX_EN_UART1_MASK | OMAP24XX_EN_MCSPI2_MASK | + OMAP24XX_EN_MCSPI1_MASK | OMAP24XX_EN_DSS1_MASK)) + return 0; + /* Check for UART3. */ + l = omap2_cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2); + if (l & OMAP24XX_EN_UART3_MASK) + return 0; + + return 1; +} + +u32 omap2xxx_cm_get_core_clk_src(void) +{ + u32 v; + + v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2); + v &= OMAP24XX_CORE_CLK_SRC_MASK; + + return v; +} + +u32 omap2xxx_cm_get_core_pll_config(void) +{ + return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2); +} + +void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core, u32 mdm) +{ + u32 tmp; + + omap2_cm_write_mod_reg(mpu, MPU_MOD, CM_CLKSEL); + omap2_cm_write_mod_reg(dsp, OMAP24XX_DSP_MOD, CM_CLKSEL); + omap2_cm_write_mod_reg(gfx, GFX_MOD, CM_CLKSEL); + tmp = omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & + OMAP24XX_CLKSEL_DSS2_MASK; + omap2_cm_write_mod_reg(core | tmp, CORE_MOD, CM_CLKSEL1); + if (mdm) + omap2_cm_write_mod_reg(mdm, OMAP2430_MDM_MOD, CM_CLKSEL); +} + +/* + * + */ + +static const struct cm_ll_data omap2xxx_cm_ll_data = { + .split_idlest_reg = &omap2xxx_cm_split_idlest_reg, + .wait_module_ready = &omap2xxx_cm_wait_module_ready, +}; + +int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data) +{ + return cm_register(&omap2xxx_cm_ll_data); +} + +static void __exit omap2xxx_cm_exit(void) +{ + cm_unregister(&omap2xxx_cm_ll_data); +} +__exitcall(omap2xxx_cm_exit); diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h new file mode 100644 index 000000000..7cbeff15f --- /dev/null +++ b/arch/arm/mach-omap2/cm2xxx.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2xxx Clock Management (CM) register definitions + * + * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc. + * Copyright (C) 2007-2010 Nokia Corporation + * Paul Walmsley + * + * The CM hardware modules on the OMAP2/3 are quite similar to each + * other. The CM modules/instances on OMAP4 are quite different, so + * they are handled in a separate file. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_H +#define __ARCH_ASM_MACH_OMAP2_CM2XXX_H + +#include "prcm-common.h" +#include "cm2xxx_3xxx.h" + +#define OMAP2420_CM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg)) +#define OMAP2430_CM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg)) + +/* + * Module specific CM register offsets from CM_BASE + domain offset + * Use cm_{read,write}_mod_reg() with these registers. + * These register offsets generally appear in more than one PRCM submodule. + */ + +/* OMAP2-specific register offsets */ + +#define OMAP24XX_CM_FCLKEN2 0x0004 +#define OMAP24XX_CM_ICLKEN4 0x001c +#define OMAP24XX_CM_AUTOIDLE4 0x003c +#define OMAP24XX_CM_IDLEST4 0x002c + +/* CM_IDLEST bit field values to indicate deasserted IdleReq */ + +#define OMAP24XX_CM_IDLEST_VAL 0 + + +/* Clock management domain register get/set */ + +#ifndef __ASSEMBLER__ + +extern void omap2xxx_cm_set_dpll_disable_autoidle(void); +extern void omap2xxx_cm_set_dpll_auto_low_power_stop(void); + +extern int omap2xxx_cm_fclks_active(void); +extern int omap2xxx_cm_mpu_retention_allowed(void); +extern u32 omap2xxx_cm_get_core_clk_src(void); +extern u32 omap2xxx_cm_get_core_pll_config(void); +extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core, + u32 mdm); + +int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data); + +#endif + +#endif diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.h b/arch/arm/mach-omap2/cm2xxx_3xxx.h new file mode 100644 index 000000000..6dfc09383 --- /dev/null +++ b/arch/arm/mach-omap2/cm2xxx_3xxx.h @@ -0,0 +1,112 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2/3 Clock Management (CM) register definitions + * + * Copyright (C) 2007-2009 Texas Instruments, Inc. + * Copyright (C) 2007-2010 Nokia Corporation + * Paul Walmsley + * + * The CM hardware modules on the OMAP2/3 are quite similar to each + * other. The CM modules/instances on OMAP4 are quite different, so + * they are handled in a separate file. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H +#define __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H + +#include "cm.h" + +/* + * Module specific CM register offsets from CM_BASE + domain offset + * Use cm_{read,write}_mod_reg() with these registers. + * These register offsets generally appear in more than one PRCM submodule. + */ + +/* Common between OMAP2 and OMAP3 */ + +#define CM_FCLKEN 0x0000 +#define CM_FCLKEN1 CM_FCLKEN +#define CM_CLKEN CM_FCLKEN +#define CM_ICLKEN 0x0010 +#define CM_ICLKEN1 CM_ICLKEN +#define CM_ICLKEN2 0x0014 +#define CM_ICLKEN3 0x0018 +#define CM_IDLEST 0x0020 +#define CM_IDLEST1 CM_IDLEST +#define CM_IDLEST2 0x0024 +#define OMAP2430_CM_IDLEST3 0x0028 +#define CM_AUTOIDLE 0x0030 +#define CM_AUTOIDLE1 CM_AUTOIDLE +#define CM_AUTOIDLE2 0x0034 +#define CM_AUTOIDLE3 0x0038 +#define CM_CLKSEL 0x0040 +#define CM_CLKSEL1 CM_CLKSEL +#define CM_CLKSEL2 0x0044 +#define OMAP2_CM_CLKSTCTRL 0x0048 + +#ifndef __ASSEMBLER__ + +#include <linux/io.h> + +static inline u32 omap2_cm_read_mod_reg(s16 module, u16 idx) +{ + return readl_relaxed(cm_base.va + module + idx); +} + +static inline void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx) +{ + writel_relaxed(val, cm_base.va + module + idx); +} + +/* Read-modify-write a register in a CM module. Caller must lock */ +static inline u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, + s16 idx) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, idx); + v &= ~mask; + v |= bits; + omap2_cm_write_mod_reg(v, module, idx); + + return v; +} + +/* Read a CM register, AND it, and shift the result down to bit 0 */ +static inline u32 omap2_cm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(domain, idx); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +static inline u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx); +} + +static inline u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx); +} + +#endif + +/* CM register bits shared between 24XX and 3430 */ + +/* CM_CLKSEL_GFX */ +#define OMAP_CLKSEL_GFX_SHIFT 0 +#define OMAP_CLKSEL_GFX_MASK (0x7 << 0) +#define OMAP_CLKSEL_GFX_WIDTH 3 + +/* CM_ICLKEN_GFX */ +#define OMAP_EN_GFX_SHIFT 0 +#define OMAP_EN_GFX_MASK (1 << 0) + +/* CM_IDLEST_GFX */ +#define OMAP_ST_GFX_MASK (1 << 0) + +#endif diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c new file mode 100644 index 000000000..a4dd42abd --- /dev/null +++ b/arch/arm/mach-omap2/cm33xx.c @@ -0,0 +1,424 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AM33XX CM functions + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + * Vaibhav Hiremath <hvaibhav@ti.com> + * + * Reference taken from OMAP4 cminst44xx.c + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "cm.h" +#include "cm33xx.h" +#include "cm-regbits-34xx.h" +#include "cm-regbits-33xx.h" +#include "prm33xx.h" +#if IS_ENABLED(CONFIG_SUSPEND) +#include <linux/suspend.h> +#endif + +/* + * CLKCTRL_IDLEST_*: possible values for the CM_*_CLKCTRL.IDLEST bitfield: + * + * 0x0 func: Module is fully functional, including OCP + * 0x1 trans: Module is performing transition: wakeup, or sleep, or sleep + * abortion + * 0x2 idle: Module is in Idle mode (only OCP part). It is functional if + * using separate functional clock + * 0x3 disabled: Module is disabled and cannot be accessed + * + */ +#define CLKCTRL_IDLEST_FUNCTIONAL 0x0 +#define CLKCTRL_IDLEST_INTRANSITION 0x1 +#define CLKCTRL_IDLEST_INTERFACE_IDLE 0x2 +#define CLKCTRL_IDLEST_DISABLED 0x3 + +/* Private functions */ + +/* Read a register in a CM instance */ +static inline u32 am33xx_cm_read_reg(u16 inst, u16 idx) +{ + return readl_relaxed(cm_base.va + inst + idx); +} + +/* Write into a register in a CM */ +static inline void am33xx_cm_write_reg(u32 val, u16 inst, u16 idx) +{ + writel_relaxed(val, cm_base.va + inst + idx); +} + +/* Read-modify-write a register in CM */ +static inline u32 am33xx_cm_rmw_reg_bits(u32 mask, u32 bits, s16 inst, s16 idx) +{ + u32 v; + + v = am33xx_cm_read_reg(inst, idx); + v &= ~mask; + v |= bits; + am33xx_cm_write_reg(v, inst, idx); + + return v; +} + +static inline u32 am33xx_cm_read_reg_bits(u16 inst, s16 idx, u32 mask) +{ + u32 v; + + v = am33xx_cm_read_reg(inst, idx); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +/** + * _clkctrl_idlest - read a CM_*_CLKCTRL register; mask & shift IDLEST bitfield + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * Return the IDLEST bitfield of a CM_*_CLKCTRL register, shifted down to + * bit 0. + */ +static u32 _clkctrl_idlest(u16 inst, u16 clkctrl_offs) +{ + u32 v = am33xx_cm_read_reg(inst, clkctrl_offs); + v &= AM33XX_IDLEST_MASK; + v >>= AM33XX_IDLEST_SHIFT; + return v; +} + +/** + * _is_module_ready - can module registers be accessed without causing an abort? + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * Returns true if the module's CM_*_CLKCTRL.IDLEST bitfield is either + * *FUNCTIONAL or *INTERFACE_IDLE; false otherwise. + */ +static bool _is_module_ready(u16 inst, u16 clkctrl_offs) +{ + u32 v; + + v = _clkctrl_idlest(inst, clkctrl_offs); + + return (v == CLKCTRL_IDLEST_FUNCTIONAL || + v == CLKCTRL_IDLEST_INTERFACE_IDLE) ? true : false; +} + +/** + * _clktrctrl_write - write @c to a CM_CLKSTCTRL.CLKTRCTRL register bitfield + * @c: CLKTRCTRL register bitfield (LSB = bit 0, i.e., unshifted) + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * @c must be the unshifted value for CLKTRCTRL - i.e., this function + * will handle the shift itself. + */ +static void _clktrctrl_write(u8 c, u16 inst, u16 cdoffs) +{ + u32 v; + + v = am33xx_cm_read_reg(inst, cdoffs); + v &= ~AM33XX_CLKTRCTRL_MASK; + v |= c << AM33XX_CLKTRCTRL_SHIFT; + am33xx_cm_write_reg(v, inst, cdoffs); +} + +/* Public functions */ + +/** + * am33xx_cm_is_clkdm_in_hwsup - is a clockdomain in hwsup idle mode? + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Returns true if the clockdomain referred to by (@inst, @cdoffs) + * is in hardware-supervised idle mode, or 0 otherwise. + */ +static bool am33xx_cm_is_clkdm_in_hwsup(u16 inst, u16 cdoffs) +{ + u32 v; + + v = am33xx_cm_read_reg(inst, cdoffs); + v &= AM33XX_CLKTRCTRL_MASK; + v >>= AM33XX_CLKTRCTRL_SHIFT; + + return (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? true : false; +} + +/** + * am33xx_cm_clkdm_enable_hwsup - put a clockdomain in hwsup-idle mode + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Put a clockdomain referred to by (@inst, @cdoffs) into + * hardware-supervised idle mode. No return value. + */ +static void am33xx_cm_clkdm_enable_hwsup(u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, inst, cdoffs); +} + +/** + * am33xx_cm_clkdm_disable_hwsup - put a clockdomain in swsup-idle mode + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Put a clockdomain referred to by (@inst, @cdoffs) into + * software-supervised idle mode, i.e., controlled manually by the + * Linux OMAP clockdomain code. No return value. + */ +static void am33xx_cm_clkdm_disable_hwsup(u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, inst, cdoffs); +} + +/** + * am33xx_cm_clkdm_force_sleep - try to put a clockdomain into idle + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Put a clockdomain referred to by (@inst, @cdoffs) into idle + * No return value. + */ +static void am33xx_cm_clkdm_force_sleep(u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, inst, cdoffs); +} + +/** + * am33xx_cm_clkdm_force_wakeup - try to take a clockdomain out of idle + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Take a clockdomain referred to by (@inst, @cdoffs) out of idle, + * waking it up. No return value. + */ +static void am33xx_cm_clkdm_force_wakeup(u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, inst, cdoffs); +} + +/* + * + */ + +/** + * am33xx_cm_wait_module_ready - wait for a module to be in 'func' state + * @part: PRCM partition, ignored for AM33xx + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * @bit_shift: bit shift for the register, ignored for AM33xx + * + * Wait for the module IDLEST to be functional. If the idle state is in any + * the non functional state (trans, idle or disabled), module and thus the + * sysconfig cannot be accessed and will probably lead to an "imprecise + * external abort" + */ +static int am33xx_cm_wait_module_ready(u8 part, s16 inst, u16 clkctrl_offs, + u8 bit_shift) +{ + int i = 0; + + omap_test_timeout(_is_module_ready(inst, clkctrl_offs), + MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + +/** + * am33xx_cm_wait_module_idle - wait for a module to be in 'disabled' + * state + * @part: CM partition, ignored for AM33xx + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * @bit_shift: bit shift for the register, ignored for AM33xx + * + * Wait for the module IDLEST to be disabled. Some PRCM transition, + * like reset assertion or parent clock de-activation must wait the + * module to be fully disabled. + */ +static int am33xx_cm_wait_module_idle(u8 part, s16 inst, u16 clkctrl_offs, + u8 bit_shift) +{ + int i = 0; + + omap_test_timeout((_clkctrl_idlest(inst, clkctrl_offs) == + CLKCTRL_IDLEST_DISABLED), + MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + +/** + * am33xx_cm_module_enable - Enable the modulemode inside CLKCTRL + * @mode: Module mode (SW or HW) + * @part: CM partition, ignored for AM33xx + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * No return value. + */ +static void am33xx_cm_module_enable(u8 mode, u8 part, u16 inst, + u16 clkctrl_offs) +{ + u32 v; + + v = am33xx_cm_read_reg(inst, clkctrl_offs); + v &= ~AM33XX_MODULEMODE_MASK; + v |= mode << AM33XX_MODULEMODE_SHIFT; + am33xx_cm_write_reg(v, inst, clkctrl_offs); +} + +/** + * am33xx_cm_module_disable - Disable the module inside CLKCTRL + * @part: CM partition, ignored for AM33xx + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * No return value. + */ +static void am33xx_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs) +{ + u32 v; + + v = am33xx_cm_read_reg(inst, clkctrl_offs); + v &= ~AM33XX_MODULEMODE_MASK; + am33xx_cm_write_reg(v, inst, clkctrl_offs); +} + +/* + * Clockdomain low-level functions + */ + +static int am33xx_clkdm_sleep(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_force_sleep(clkdm->cm_inst, clkdm->clkdm_offs); + return 0; +} + +static int am33xx_clkdm_wakeup(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_force_wakeup(clkdm->cm_inst, clkdm->clkdm_offs); + return 0; +} + +static void am33xx_clkdm_allow_idle(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_enable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); +} + +static void am33xx_clkdm_deny_idle(struct clockdomain *clkdm) +{ + am33xx_cm_clkdm_disable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); +} + +static int am33xx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + return am33xx_clkdm_wakeup(clkdm); + + return 0; +} + +static int am33xx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + +#if IS_ENABLED(CONFIG_SUSPEND) + /* + * In case of standby, Don't put the l4ls clk domain to sleep. + * Since CM3 PM FW doesn't wake-up/enable the l4ls clk domain + * upon wake-up, CM3 PM FW fails to wake-up th MPU. + */ + if (pm_suspend_target_state == PM_SUSPEND_STANDBY && + (clkdm->flags & CLKDM_STANDBY_FORCE_WAKEUP)) + return 0; +#endif + hwsup = am33xx_cm_is_clkdm_in_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); + if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) + am33xx_clkdm_sleep(clkdm); + + return 0; +} + +static u32 am33xx_cm_xlate_clkctrl(u8 part, u16 inst, u16 offset) +{ + return cm_base.pa + inst + offset; +} + +/** + * am33xx_clkdm_save_context - Save the clockdomain transition context + * @clkdm: The clockdomain pointer whose context needs to be saved + * + * Save the clockdomain transition context. + */ +static int am33xx_clkdm_save_context(struct clockdomain *clkdm) +{ + clkdm->context = am33xx_cm_read_reg_bits(clkdm->cm_inst, + clkdm->clkdm_offs, + AM33XX_CLKTRCTRL_MASK); + + return 0; +} + +/** + * am33xx_clkdm_restore_context - Restore the clockdomain transition context + * @clkdm: The clockdomain pointer whose context needs to be restored + * + * Restore the clockdomain transition context. + */ +static int am33xx_clkdm_restore_context(struct clockdomain *clkdm) +{ + switch (clkdm->context) { + case OMAP34XX_CLKSTCTRL_DISABLE_AUTO: + am33xx_clkdm_deny_idle(clkdm); + break; + case OMAP34XX_CLKSTCTRL_FORCE_SLEEP: + am33xx_clkdm_sleep(clkdm); + break; + case OMAP34XX_CLKSTCTRL_FORCE_WAKEUP: + am33xx_clkdm_wakeup(clkdm); + break; + case OMAP34XX_CLKSTCTRL_ENABLE_AUTO: + am33xx_clkdm_allow_idle(clkdm); + break; + } + return 0; +} + +struct clkdm_ops am33xx_clkdm_operations = { + .clkdm_sleep = am33xx_clkdm_sleep, + .clkdm_wakeup = am33xx_clkdm_wakeup, + .clkdm_allow_idle = am33xx_clkdm_allow_idle, + .clkdm_deny_idle = am33xx_clkdm_deny_idle, + .clkdm_clk_enable = am33xx_clkdm_clk_enable, + .clkdm_clk_disable = am33xx_clkdm_clk_disable, + .clkdm_save_context = am33xx_clkdm_save_context, + .clkdm_restore_context = am33xx_clkdm_restore_context, +}; + +static const struct cm_ll_data am33xx_cm_ll_data = { + .wait_module_ready = &am33xx_cm_wait_module_ready, + .wait_module_idle = &am33xx_cm_wait_module_idle, + .module_enable = &am33xx_cm_module_enable, + .module_disable = &am33xx_cm_module_disable, + .xlate_clkctrl = &am33xx_cm_xlate_clkctrl, +}; + +int __init am33xx_cm_init(const struct omap_prcm_init_data *data) +{ + return cm_register(&am33xx_cm_ll_data); +} + +static void __exit am33xx_cm_exit(void) +{ + cm_unregister(&am33xx_cm_ll_data); +} +__exitcall(am33xx_cm_exit); diff --git a/arch/arm/mach-omap2/cm33xx.h b/arch/arm/mach-omap2/cm33xx.h new file mode 100644 index 000000000..456267a7a --- /dev/null +++ b/arch/arm/mach-omap2/cm33xx.h @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * AM33XX CM offset macros + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + * Vaibhav Hiremath <hvaibhav@ti.com> + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM_33XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_33XX_H + +#include "cm.h" +#include "cm-regbits-33xx.h" +#include "prcm-common.h" + +/* CM base address */ +#define AM33XX_CM_BASE 0x44e00000 + +#define AM33XX_CM_REGADDR(inst, reg) \ + AM33XX_L4_WK_IO_ADDRESS(AM33XX_CM_BASE + (inst) + (reg)) + +/* CM instances */ +#define AM33XX_CM_PER_MOD 0x0000 +#define AM33XX_CM_WKUP_MOD 0x0400 +#define AM33XX_CM_DPLL_MOD 0x0500 +#define AM33XX_CM_MPU_MOD 0x0600 +#define AM33XX_CM_DEVICE_MOD 0x0700 +#define AM33XX_CM_RTC_MOD 0x0800 +#define AM33XX_CM_GFX_MOD 0x0900 +#define AM33XX_CM_CEFUSE_MOD 0x0A00 + +/* CM.PER_CM register offsets */ +#define AM33XX_CM_PER_L4LS_CLKSTCTRL_OFFSET 0x0000 +#define AM33XX_CM_PER_L4LS_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0000) +#define AM33XX_CM_PER_L3S_CLKSTCTRL_OFFSET 0x0004 +#define AM33XX_CM_PER_L3S_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0004) +#define AM33XX_CM_PER_L4FW_CLKSTCTRL_OFFSET 0x0008 +#define AM33XX_CM_PER_L4FW_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0008) +#define AM33XX_CM_PER_L3_CLKSTCTRL_OFFSET 0x000c +#define AM33XX_CM_PER_L3_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x000c) +#define AM33XX_CM_PER_EMIF_CLKCTRL_OFFSET 0x0028 +#define AM33XX_CM_PER_EMIF_CLKCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0028) +#define AM33XX_CM_PER_L4HS_CLKSTCTRL_OFFSET 0x011c +#define AM33XX_CM_PER_L4HS_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x011c) +#define AM33XX_CM_PER_OCPWP_L3_CLKSTCTRL_OFFSET 0x012c +#define AM33XX_CM_PER_OCPWP_L3_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x012c) +#define AM33XX_CM_PER_PRUSS_CLKSTCTRL_OFFSET 0x0140 +#define AM33XX_CM_PER_PRUSS_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0140) +#define AM33XX_CM_PER_CPSW_CLKSTCTRL_OFFSET 0x0144 +#define AM33XX_CM_PER_CPSW_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0144) +#define AM33XX_CM_PER_LCDC_CLKSTCTRL_OFFSET 0x0148 +#define AM33XX_CM_PER_LCDC_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0148) +#define AM33XX_CM_PER_CLK_24MHZ_CLKSTCTRL_OFFSET 0x0150 +#define AM33XX_CM_PER_CLK_24MHZ_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_PER_MOD, 0x0150) + +/* CM.WKUP_CM register offsets */ +#define AM33XX_CM_WKUP_CLKSTCTRL_OFFSET 0x0000 +#define AM33XX_CM_WKUP_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_WKUP_MOD, 0x0000) +#define AM33XX_CM_L3_AON_CLKSTCTRL_OFFSET 0x0018 +#define AM33XX_CM_L3_AON_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_WKUP_MOD, 0x0018) +#define AM33XX_CM_L4_WKUP_AON_CLKSTCTRL_OFFSET 0x00cc +#define AM33XX_CM_L4_WKUP_AON_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_WKUP_MOD, 0x00cc) + +/* CM.DPLL_CM register offsets */ +#define AM33XX_CLKSEL_GFX_FCLK AM33XX_CM_REGADDR(AM33XX_CM_DPLL_MOD, 0x002c) + +/* CM.MPU_CM register offsets */ +#define AM33XX_CM_MPU_CLKSTCTRL_OFFSET 0x0000 +#define AM33XX_CM_MPU_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_MPU_MOD, 0x0000) +#define AM33XX_CM_MPU_MPU_CLKCTRL AM33XX_CM_REGADDR(AM33XX_CM_MPU_MOD, 0x0004) + +/* CM.DEVICE_CM register offsets */ + +/* CM.RTC_CM register offsets */ +#define AM33XX_CM_RTC_CLKSTCTRL_OFFSET 0x0004 +#define AM33XX_CM_RTC_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_RTC_MOD, 0x0004) + +/* CM.GFX_CM register offsets */ +#define AM33XX_CM_GFX_L3_CLKSTCTRL_OFFSET 0x0000 +#define AM33XX_CM_GFX_L3_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_GFX_MOD, 0x0000) +#define AM33XX_CM_GFX_L4LS_GFX_CLKSTCTRL__1_OFFSET 0x000c +#define AM33XX_CM_GFX_L4LS_GFX_CLKSTCTRL__1 AM33XX_CM_REGADDR(AM33XX_CM_GFX_MOD, 0x000c) + +/* CM.CEFUSE_CM register offsets */ +#define AM33XX_CM_CEFUSE_CLKSTCTRL_OFFSET 0x0000 +#define AM33XX_CM_CEFUSE_CLKSTCTRL AM33XX_CM_REGADDR(AM33XX_CM_CEFUSE_MOD, 0x0000) + + +#ifndef __ASSEMBLER__ +int am33xx_cm_init(const struct omap_prcm_init_data *data); +#endif /* ASSEMBLER */ +#endif diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c new file mode 100644 index 000000000..b03b6123b --- /dev/null +++ b/arch/arm/mach-omap2/cm3xxx.c @@ -0,0 +1,678 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3xxx CM module functions + * + * Copyright (C) 2009 Nokia Corporation + * Copyright (C) 2008-2010, 2012 Texas Instruments, Inc. + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "prm2xxx_3xxx.h" +#include "cm.h" +#include "cm3xxx.h" +#include "cm-regbits-34xx.h" +#include "clockdomain.h" + +static const u8 omap3xxx_cm_idlest_offs[] = { + CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3 +}; + +/* + * + */ + +static void _write_clktrctrl(u8 c, s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= ~mask; + v |= c << __ffs(mask); + omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL); +} + +static bool omap3xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL); + v &= mask; + v >>= __ffs(mask); + + return (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0; +} + +static void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, module, mask); +} + +static void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, module, mask); +} + +static void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, module, mask); +} + +static void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask) +{ + _write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, module, mask); +} + +/* + * + */ + +/** + * omap3xxx_cm_wait_module_ready - wait for a module to leave idle or standby + * @part: PRCM partition, ignored for OMAP3 + * @prcm_mod: PRCM module offset + * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3) + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon + * success or -EBUSY if the module doesn't enable in time. + */ +static int omap3xxx_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_id, + u8 idlest_shift) +{ + int ena = 0, i = 0; + u8 cm_idlest_reg; + u32 mask; + + if (!idlest_id || (idlest_id > ARRAY_SIZE(omap3xxx_cm_idlest_offs))) + return -EINVAL; + + cm_idlest_reg = omap3xxx_cm_idlest_offs[idlest_id - 1]; + + mask = 1 << idlest_shift; + ena = 0; + + omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & + mask) == ena), MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + +/** + * omap3xxx_cm_split_idlest_reg - split CM_IDLEST reg addr into its components + * @idlest_reg: CM_IDLEST* virtual address + * @prcm_inst: pointer to an s16 to return the PRCM instance offset + * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID + * + * XXX This function is only needed until absolute register addresses are + * removed from the OMAP struct clk records. + */ +static int omap3xxx_cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, + s16 *prcm_inst, + u8 *idlest_reg_id) +{ + unsigned long offs; + u8 idlest_offs; + int i; + + idlest_offs = idlest_reg->offset & 0xff; + for (i = 0; i < ARRAY_SIZE(omap3xxx_cm_idlest_offs); i++) { + if (idlest_offs == omap3xxx_cm_idlest_offs[i]) { + *idlest_reg_id = i + 1; + break; + } + } + + if (i == ARRAY_SIZE(omap3xxx_cm_idlest_offs)) + return -EINVAL; + + offs = idlest_reg->offset; + offs &= 0xff00; + *prcm_inst = offs; + + return 0; +} + +/* Clockdomain low-level operations */ + +static int omap3xxx_clkdm_add_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; +} + +static int omap3xxx_clkdm_del_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; +} + +static int omap3xxx_clkdm_read_sleepdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + return omap2_cm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP, + (1 << clkdm2->dep_bit)); +} + +static int omap3xxx_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm) +{ + struct clkdm_dep *cd; + u32 mask = 0; + + for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + mask |= 1 << cd->clkdm->dep_bit; + cd->sleepdep_usecount = 0; + } + omap2_cm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, + OMAP3430_CM_SLEEPDEP); + return 0; +} + +static int omap3xxx_clkdm_sleep(struct clockdomain *clkdm) +{ + omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; +} + +static int omap3xxx_clkdm_wakeup(struct clockdomain *clkdm) +{ + omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; +} + +static void omap3xxx_clkdm_allow_idle(struct clockdomain *clkdm) +{ + if (clkdm->usecount > 0) + clkdm_add_autodeps(clkdm); + + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); +} + +static void omap3xxx_clkdm_deny_idle(struct clockdomain *clkdm) +{ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (clkdm->usecount > 0) + clkdm_del_autodeps(clkdm); +} + +static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if ((clkdm->flags & CLKDM_MISSING_IDLE_REPORTING) && + (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)) { + omap3xxx_clkdm_wakeup(clkdm); + return 0; + } + + hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + clkdm_add_autodeps(clkdm); + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap3xxx_clkdm_wakeup(clkdm); + } + + return 0; +} + +static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->clktrctrl_mask) + return 0; + + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING && + !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + return 0; + } + + hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + + if (hwsup) { + /* Disable HW transitions when we are changing deps */ + omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + clkdm_del_autodeps(clkdm); + omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs, + clkdm->clktrctrl_mask); + } else { + if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap3xxx_clkdm_sleep(clkdm); + } + + return 0; +} + +struct clkdm_ops omap3_clkdm_operations = { + .clkdm_add_wkdep = omap2_clkdm_add_wkdep, + .clkdm_del_wkdep = omap2_clkdm_del_wkdep, + .clkdm_read_wkdep = omap2_clkdm_read_wkdep, + .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps, + .clkdm_add_sleepdep = omap3xxx_clkdm_add_sleepdep, + .clkdm_del_sleepdep = omap3xxx_clkdm_del_sleepdep, + .clkdm_read_sleepdep = omap3xxx_clkdm_read_sleepdep, + .clkdm_clear_all_sleepdeps = omap3xxx_clkdm_clear_all_sleepdeps, + .clkdm_sleep = omap3xxx_clkdm_sleep, + .clkdm_wakeup = omap3xxx_clkdm_wakeup, + .clkdm_allow_idle = omap3xxx_clkdm_allow_idle, + .clkdm_deny_idle = omap3xxx_clkdm_deny_idle, + .clkdm_clk_enable = omap3xxx_clkdm_clk_enable, + .clkdm_clk_disable = omap3xxx_clkdm_clk_disable, +}; + +/* + * Context save/restore code - OMAP3 only + */ +struct omap3_cm_regs { + u32 iva2_cm_clksel1; + u32 iva2_cm_clksel2; + u32 cm_sysconfig; + u32 sgx_cm_clksel; + u32 dss_cm_clksel; + u32 cam_cm_clksel; + u32 per_cm_clksel; + u32 emu_cm_clksel; + u32 emu_cm_clkstctrl; + u32 pll_cm_autoidle; + u32 pll_cm_autoidle2; + u32 pll_cm_clksel4; + u32 pll_cm_clksel5; + u32 pll_cm_clken2; + u32 cm_polctrl; + u32 iva2_cm_fclken; + u32 iva2_cm_clken_pll; + u32 core_cm_fclken1; + u32 core_cm_fclken3; + u32 sgx_cm_fclken; + u32 wkup_cm_fclken; + u32 dss_cm_fclken; + u32 cam_cm_fclken; + u32 per_cm_fclken; + u32 usbhost_cm_fclken; + u32 core_cm_iclken1; + u32 core_cm_iclken2; + u32 core_cm_iclken3; + u32 sgx_cm_iclken; + u32 wkup_cm_iclken; + u32 dss_cm_iclken; + u32 cam_cm_iclken; + u32 per_cm_iclken; + u32 usbhost_cm_iclken; + u32 iva2_cm_autoidle2; + u32 mpu_cm_autoidle2; + u32 iva2_cm_clkstctrl; + u32 mpu_cm_clkstctrl; + u32 core_cm_clkstctrl; + u32 sgx_cm_clkstctrl; + u32 dss_cm_clkstctrl; + u32 cam_cm_clkstctrl; + u32 per_cm_clkstctrl; + u32 neon_cm_clkstctrl; + u32 usbhost_cm_clkstctrl; + u32 core_cm_autoidle1; + u32 core_cm_autoidle2; + u32 core_cm_autoidle3; + u32 wkup_cm_autoidle; + u32 dss_cm_autoidle; + u32 cam_cm_autoidle; + u32 per_cm_autoidle; + u32 usbhost_cm_autoidle; + u32 sgx_cm_sleepdep; + u32 dss_cm_sleepdep; + u32 cam_cm_sleepdep; + u32 per_cm_sleepdep; + u32 usbhost_cm_sleepdep; + u32 cm_clkout_ctrl; +}; + +static struct omap3_cm_regs cm_context; + +void omap3_cm_save_context(void) +{ + cm_context.iva2_cm_clksel1 = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1); + cm_context.iva2_cm_clksel2 = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2); + cm_context.cm_sysconfig = + omap2_cm_read_mod_reg(OCP_MOD, OMAP3430_CM_SYSCONFIG); + cm_context.sgx_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL); + cm_context.dss_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL); + cm_context.cam_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL); + cm_context.per_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL); + cm_context.emu_cm_clksel = + omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1); + cm_context.emu_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL); + /* + * As per erratum i671, ROM code does not respect the PER DPLL + * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1. + * In this case, even though this register has been saved in + * scratchpad contents, we need to restore AUTO_PERIPH_DPLL + * by ourselves. So, we need to save it anyway. + */ + cm_context.pll_cm_autoidle = + omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE); + cm_context.pll_cm_autoidle2 = + omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2); + cm_context.pll_cm_clksel4 = + omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4); + cm_context.pll_cm_clksel5 = + omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5); + cm_context.pll_cm_clken2 = + omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2); + cm_context.cm_polctrl = + omap2_cm_read_mod_reg(OCP_MOD, OMAP3430_CM_POLCTRL); + cm_context.iva2_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN); + cm_context.iva2_cm_clken_pll = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKEN_PLL); + cm_context.core_cm_fclken1 = + omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + cm_context.core_cm_fclken3 = + omap2_cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + cm_context.sgx_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN); + cm_context.wkup_cm_fclken = + omap2_cm_read_mod_reg(WKUP_MOD, CM_FCLKEN); + cm_context.dss_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN); + cm_context.cam_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN); + cm_context.per_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN); + cm_context.usbhost_cm_fclken = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN); + cm_context.core_cm_iclken1 = + omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN1); + cm_context.core_cm_iclken2 = + omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN2); + cm_context.core_cm_iclken3 = + omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN3); + cm_context.sgx_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN); + cm_context.wkup_cm_iclken = + omap2_cm_read_mod_reg(WKUP_MOD, CM_ICLKEN); + cm_context.dss_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN); + cm_context.cam_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN); + cm_context.per_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN); + cm_context.usbhost_cm_iclken = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN); + cm_context.iva2_cm_autoidle2 = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2); + cm_context.mpu_cm_autoidle2 = + omap2_cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2); + cm_context.iva2_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.mpu_cm_clkstctrl = + omap2_cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.core_cm_clkstctrl = + omap2_cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.sgx_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.dss_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.cam_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.per_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.neon_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL); + cm_context.usbhost_cm_clkstctrl = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + OMAP2_CM_CLKSTCTRL); + cm_context.core_cm_autoidle1 = + omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1); + cm_context.core_cm_autoidle2 = + omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2); + cm_context.core_cm_autoidle3 = + omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3); + cm_context.wkup_cm_autoidle = + omap2_cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE); + cm_context.dss_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE); + cm_context.cam_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE); + cm_context.per_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE); + cm_context.usbhost_cm_autoidle = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE); + cm_context.sgx_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, + OMAP3430_CM_SLEEPDEP); + cm_context.dss_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP); + cm_context.cam_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP); + cm_context.per_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP); + cm_context.usbhost_cm_sleepdep = + omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + OMAP3430_CM_SLEEPDEP); + cm_context.cm_clkout_ctrl = + omap2_cm_read_mod_reg(OMAP3430_CCR_MOD, + OMAP3_CM_CLKOUT_CTRL_OFFSET); +} + +void omap3_cm_restore_context(void) +{ + omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD, + CM_CLKSEL1); + omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD, + CM_CLKSEL2); + omap2_cm_write_mod_reg(cm_context.cm_sysconfig, OCP_MOD, + OMAP3430_CM_SYSCONFIG); + omap2_cm_write_mod_reg(cm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.dss_cm_clksel, OMAP3430_DSS_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.cam_cm_clksel, OMAP3430_CAM_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.per_cm_clksel, OMAP3430_PER_MOD, + CM_CLKSEL); + omap2_cm_write_mod_reg(cm_context.emu_cm_clksel, OMAP3430_EMU_MOD, + CM_CLKSEL1); + omap2_cm_write_mod_reg(cm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD, + OMAP2_CM_CLKSTCTRL); + /* + * As per erratum i671, ROM code does not respect the PER DPLL + * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1. + * In this case, we need to restore AUTO_PERIPH_DPLL by ourselves. + */ + omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle, PLL_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle2, PLL_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.pll_cm_clksel4, PLL_MOD, + OMAP3430ES2_CM_CLKSEL4); + omap2_cm_write_mod_reg(cm_context.pll_cm_clksel5, PLL_MOD, + OMAP3430ES2_CM_CLKSEL5); + omap2_cm_write_mod_reg(cm_context.pll_cm_clken2, PLL_MOD, + OMAP3430ES2_CM_CLKEN2); + omap2_cm_write_mod_reg(cm_context.cm_polctrl, OCP_MOD, + OMAP3430_CM_POLCTRL); + omap2_cm_write_mod_reg(cm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD, + OMAP3430_CM_CLKEN_PLL); + omap2_cm_write_mod_reg(cm_context.core_cm_fclken1, CORE_MOD, + CM_FCLKEN1); + omap2_cm_write_mod_reg(cm_context.core_cm_fclken3, CORE_MOD, + OMAP3430ES2_CM_FCLKEN3); + omap2_cm_write_mod_reg(cm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.dss_cm_fclken, OMAP3430_DSS_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.cam_cm_fclken, OMAP3430_CAM_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.per_cm_fclken, OMAP3430_PER_MOD, + CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_fclken, + OMAP3430ES2_USBHOST_MOD, CM_FCLKEN); + omap2_cm_write_mod_reg(cm_context.core_cm_iclken1, CORE_MOD, + CM_ICLKEN1); + omap2_cm_write_mod_reg(cm_context.core_cm_iclken2, CORE_MOD, + CM_ICLKEN2); + omap2_cm_write_mod_reg(cm_context.core_cm_iclken3, CORE_MOD, + CM_ICLKEN3); + omap2_cm_write_mod_reg(cm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.dss_cm_iclken, OMAP3430_DSS_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.cam_cm_iclken, OMAP3430_CAM_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.per_cm_iclken, OMAP3430_PER_MOD, + CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_iclken, + OMAP3430ES2_USBHOST_MOD, CM_ICLKEN); + omap2_cm_write_mod_reg(cm_context.iva2_cm_autoidle2, OMAP3430_IVA2_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.mpu_cm_autoidle2, MPU_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.mpu_cm_clkstctrl, MPU_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.core_cm_clkstctrl, CORE_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.per_cm_clkstctrl, OMAP3430_PER_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD, + OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_clkstctrl, + OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL); + omap2_cm_write_mod_reg(cm_context.core_cm_autoidle1, CORE_MOD, + CM_AUTOIDLE1); + omap2_cm_write_mod_reg(cm_context.core_cm_autoidle2, CORE_MOD, + CM_AUTOIDLE2); + omap2_cm_write_mod_reg(cm_context.core_cm_autoidle3, CORE_MOD, + CM_AUTOIDLE3); + omap2_cm_write_mod_reg(cm_context.wkup_cm_autoidle, WKUP_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.dss_cm_autoidle, OMAP3430_DSS_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.cam_cm_autoidle, OMAP3430_CAM_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.per_cm_autoidle, OMAP3430_PER_MOD, + CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_autoidle, + OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE); + omap2_cm_write_mod_reg(cm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.per_cm_sleepdep, OMAP3430_PER_MOD, + OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.usbhost_cm_sleepdep, + OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP); + omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD, + OMAP3_CM_CLKOUT_CTRL_OFFSET); +} + +void omap3_cm_save_scratchpad_contents(u32 *ptr) +{ + *ptr++ = omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL); + *ptr++ = omap2_cm_read_mod_reg(WKUP_MOD, CM_CLKSEL); + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN); + + /* + * As per erratum i671, ROM code does not respect the PER DPLL + * programming scheme if CM_AUTOIDLE_PLL..AUTO_PERIPH_DPLL == 1. + * Then, in any case, clear these bits to avoid extra latencies. + */ + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE) & + ~OMAP3430_AUTO_PERIPH_DPLL_MASK; + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL1_PLL); + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL2_PLL); + *ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL3); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKEN_PLL); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_AUTOIDLE_PLL); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL); + *ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL2_PLL); +} + +/* + * + */ + +static const struct cm_ll_data omap3xxx_cm_ll_data = { + .split_idlest_reg = &omap3xxx_cm_split_idlest_reg, + .wait_module_ready = &omap3xxx_cm_wait_module_ready, +}; + +int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data) +{ + omap2_clk_legacy_provider_init(TI_CLKM_CM, cm_base.va + + OMAP3430_IVA2_MOD); + return cm_register(&omap3xxx_cm_ll_data); +} + +static void __exit omap3xxx_cm_exit(void) +{ + cm_unregister(&omap3xxx_cm_ll_data); +} +__exitcall(omap3xxx_cm_exit); diff --git a/arch/arm/mach-omap2/cm3xxx.h b/arch/arm/mach-omap2/cm3xxx.h new file mode 100644 index 000000000..ab0dc206d --- /dev/null +++ b/arch/arm/mach-omap2/cm3xxx.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2/3 Clock Management (CM) register definitions + * + * Copyright (C) 2007-2009 Texas Instruments, Inc. + * Copyright (C) 2007-2010 Nokia Corporation + * Paul Walmsley + * + * The CM hardware modules on the OMAP2/3 are quite similar to each + * other. The CM modules/instances on OMAP4 are quite different, so + * they are handled in a separate file. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM3XXX_H +#define __ARCH_ASM_MACH_OMAP2_CM3XXX_H + +#include "prcm-common.h" +#include "cm2xxx_3xxx.h" + +#define OMAP34XX_CM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg)) + + +/* + * OMAP3-specific global CM registers + * Use cm_{read,write}_reg() with these registers. + * These registers appear once per CM module. + */ + +#define OMAP3430_CM_SYSCONFIG 0x0010 +#define OMAP3430_CM_POLCTRL 0x009c + +#define OMAP3_CM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070) + +/* + * Module specific CM register offsets from CM_BASE + domain offset + * Use cm_{read,write}_mod_reg() with these registers. + * These register offsets generally appear in more than one PRCM submodule. + */ + +/* OMAP3-specific register offsets */ + +#define OMAP3430_CM_CLKEN_PLL 0x0004 +#define OMAP3430ES2_CM_CLKEN2 0x0004 +#define OMAP3430ES2_CM_FCLKEN3 0x0008 +#define OMAP3430_CM_IDLEST_PLL CM_IDLEST2 +#define OMAP3430_CM_AUTOIDLE_PLL CM_AUTOIDLE2 +#define OMAP3430ES2_CM_AUTOIDLE2_PLL CM_AUTOIDLE2 +#define OMAP3430_CM_CLKSEL1 CM_CLKSEL +#define OMAP3430_CM_CLKSEL1_PLL CM_CLKSEL +#define OMAP3430_CM_CLKSEL2_PLL CM_CLKSEL2 +#define OMAP3430_CM_SLEEPDEP CM_CLKSEL2 +#define OMAP3430_CM_CLKSEL3 OMAP2_CM_CLKSTCTRL +#define OMAP3430_CM_CLKSTST 0x004c +#define OMAP3430ES2_CM_CLKSEL4 0x004c +#define OMAP3430ES2_CM_CLKSEL5 0x0050 +#define OMAP3430_CM_CLKSEL2_EMU 0x0050 +#define OMAP3430_CM_CLKSEL3_EMU 0x0054 + + +/* CM_IDLEST bit field values to indicate deasserted IdleReq */ + +#define OMAP34XX_CM_IDLEST_VAL 1 + + +#ifndef __ASSEMBLER__ + +extern void omap3_cm_save_context(void); +extern void omap3_cm_restore_context(void); +extern void omap3_cm_save_scratchpad_contents(u32 *ptr); + +int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data); + +#endif + +#endif diff --git a/arch/arm/mach-omap2/cm44xx.h b/arch/arm/mach-omap2/cm44xx.h new file mode 100644 index 000000000..826fdda54 --- /dev/null +++ b/arch/arm/mach-omap2/cm44xx.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP4 Clock Management (CM) definitions + * + * Copyright (C) 2007-2011 Texas Instruments, Inc. + * Copyright (C) 2007-2009 Nokia Corporation + * + * Written by Paul Walmsley + * + * OMAP4 has two separate CM blocks, CM1 and CM2. This file contains + * macros and function prototypes that are applicable to both. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM44XX_H +#define __ARCH_ASM_MACH_OMAP2_CM44XX_H + + +#include "prcm-common.h" +#include "cm.h" + +#define OMAP4_CM_CLKSTCTRL 0x0000 +#define OMAP4_CM_STATICDEP 0x0004 + +int omap4_cm_init(const struct omap_prcm_init_data *data); + +#endif diff --git a/arch/arm/mach-omap2/cm81xx.h b/arch/arm/mach-omap2/cm81xx.h new file mode 100644 index 000000000..ffcde1812 --- /dev/null +++ b/arch/arm/mach-omap2/cm81xx.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Clock domain register offsets for TI81XX. + * + * Copyright (C) 2010 Texas Instruments, Inc. - https://www.ti.com/ + * Copyright (C) 2013 SKTB SKiT, http://www.skitlab.ru/ + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CM_TI81XX_H +#define __ARCH_ARM_MACH_OMAP2_CM_TI81XX_H + +/* TI81XX common CM module offsets */ +#define TI81XX_CM_ACTIVE_MOD 0x0400 /* 256B */ +#define TI81XX_CM_DEFAULT_MOD 0x0500 /* 256B */ +#define TI81XX_CM_ALWON_MOD 0x1400 /* 1KB */ +#define TI81XX_CM_SGX_MOD 0x0900 /* 256B */ + +/* TI816X CM module offsets */ +#define TI816X_CM_IVAHD0_MOD 0x0600 /* 256B */ +#define TI816X_CM_IVAHD1_MOD 0x0700 /* 256B */ +#define TI816X_CM_IVAHD2_MOD 0x0800 /* 256B */ + +/* ALWON */ +#define TI81XX_CM_ALWON_L3_SLOW_CLKDM 0x0000 +#define TI81XX_CM_ALWON_L3_MED_CLKDM 0x0004 +#define TI81XX_CM_ETHERNET_CLKDM 0x0004 +#define TI81XX_CM_MMU_CLKDM 0x000C +#define TI81XX_CM_MMUCFG_CLKDM 0x0010 +#define TI81XX_CM_ALWON_MPU_CLKDM 0x001C +#define TI81XX_CM_ALWON_L3_FAST_CLKDM 0x0030 + +/* ACTIVE */ +#define TI816X_CM_ACTIVE_GEM_CLKDM 0x0000 + +/* IVAHD0 */ +#define TI816X_CM_IVAHD0_CLKDM 0x0000 + +/* IVAHD1 */ +#define TI816X_CM_IVAHD1_CLKDM 0x0000 + +/* IVAHD2 */ +#define TI816X_CM_IVAHD2_CLKDM 0x0000 + +/* SGX */ +#define TI816X_CM_SGX_CLKDM 0x0000 + +/* DEFAULT */ +#define TI816X_CM_DEFAULT_L3_MED_CLKDM 0x0004 +#define TI816X_CM_DEFAULT_PCI_CLKDM 0x0010 +#define TI816X_CM_DEFAULT_L3_SLOW_CLKDM 0x0014 +#define TI816X_CM_DEFAULT_DUCATI_CLKDM 0x0018 +#define TI816X_CM_DEFAULT_SATA_CLKDM 0x0060 + +#endif diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c new file mode 100644 index 000000000..87f2c2d2d --- /dev/null +++ b/arch/arm/mach-omap2/cm_common.c @@ -0,0 +1,379 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2+ common Clock Management (CM) IP block functions + * + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + * + * XXX This code should eventually be moved to a CM driver. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/bug.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#include "cm2xxx.h" +#include "cm3xxx.h" +#include "cm33xx.h" +#include "cm44xx.h" +#include "clock.h" + +/* + * cm_ll_data: function pointers to SoC-specific implementations of + * common CM functions + */ +static struct cm_ll_data null_cm_ll_data; +static const struct cm_ll_data *cm_ll_data = &null_cm_ll_data; + +/* cm_base: base virtual address of the CM IP block */ +struct omap_domain_base cm_base; + +/* cm2_base: base virtual address of the CM2 IP block (OMAP44xx only) */ +struct omap_domain_base cm2_base; + +#define CM_NO_CLOCKS 0x1 +#define CM_SINGLE_INSTANCE 0x2 + +/** + * cm_split_idlest_reg - split CM_IDLEST reg addr into its components + * @idlest_reg: CM_IDLEST* virtual address + * @prcm_inst: pointer to an s16 to return the PRCM instance offset + * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID + * + * Given an absolute CM_IDLEST register address @idlest_reg, passes + * the PRCM instance offset and IDLEST register ID back to the caller + * via the @prcm_inst and @idlest_reg_id. Returns -EINVAL upon error, + * or 0 upon success. XXX This function is only needed until absolute + * register addresses are removed from the OMAP struct clk records. + */ +int cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, s16 *prcm_inst, + u8 *idlest_reg_id) +{ + int ret; + if (!cm_ll_data->split_idlest_reg) { + WARN_ONCE(1, "cm: %s: no low-level function defined\n", + __func__); + return -EINVAL; + } + + ret = cm_ll_data->split_idlest_reg(idlest_reg, prcm_inst, + idlest_reg_id); + *prcm_inst -= cm_base.offset; + return ret; +} + +/** + * omap_cm_wait_module_ready - wait for a module to leave idle or standby + * @part: PRCM partition + * @prcm_mod: PRCM module offset + * @idlest_reg: CM_IDLESTx register + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is clocked. Return 0 upon + * success, -EBUSY if the module doesn't enable in time, or -EINVAL if + * no per-SoC wait_module_ready() function pointer has been registered + * or if the idlest register is unknown on the SoC. + */ +int omap_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift) +{ + if (!cm_ll_data->wait_module_ready) { + WARN_ONCE(1, "cm: %s: no low-level function defined\n", + __func__); + return -EINVAL; + } + + return cm_ll_data->wait_module_ready(part, prcm_mod, idlest_reg, + idlest_shift); +} + +/** + * omap_cm_wait_module_idle - wait for a module to enter idle or standby + * @part: PRCM partition + * @prcm_mod: PRCM module offset + * @idlest_reg: CM_IDLESTx register + * @idlest_shift: shift of the bit in the CM_IDLEST* register to check + * + * Wait for the PRCM to indicate that the module identified by + * (@prcm_mod, @idlest_id, @idlest_shift) is no longer clocked. Return + * 0 upon success, -EBUSY if the module doesn't enable in time, or + * -EINVAL if no per-SoC wait_module_idle() function pointer has been + * registered or if the idlest register is unknown on the SoC. + */ +int omap_cm_wait_module_idle(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift) +{ + if (!cm_ll_data->wait_module_idle) { + WARN_ONCE(1, "cm: %s: no low-level function defined\n", + __func__); + return -EINVAL; + } + + return cm_ll_data->wait_module_idle(part, prcm_mod, idlest_reg, + idlest_shift); +} + +/** + * omap_cm_module_enable - enable a module + * @mode: target mode for the module + * @part: PRCM partition + * @inst: PRCM instance + * @clkctrl_offs: CM_CLKCTRL register offset for the module + * + * Enables clocks for a module identified by (@part, @inst, @clkctrl_offs) + * making its IO space accessible. Return 0 upon success, -EINVAL if no + * per-SoC module_enable() function pointer has been registered. + */ +int omap_cm_module_enable(u8 mode, u8 part, u16 inst, u16 clkctrl_offs) +{ + if (!cm_ll_data->module_enable) { + WARN_ONCE(1, "cm: %s: no low-level function defined\n", + __func__); + return -EINVAL; + } + + cm_ll_data->module_enable(mode, part, inst, clkctrl_offs); + return 0; +} + +/** + * omap_cm_module_disable - disable a module + * @part: PRCM partition + * @inst: PRCM instance + * @clkctrl_offs: CM_CLKCTRL register offset for the module + * + * Disables clocks for a module identified by (@part, @inst, @clkctrl_offs) + * makings its IO space inaccessible. Return 0 upon success, -EINVAL if + * no per-SoC module_disable() function pointer has been registered. + */ +int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs) +{ + if (!cm_ll_data->module_disable) { + WARN_ONCE(1, "cm: %s: no low-level function defined\n", + __func__); + return -EINVAL; + } + + cm_ll_data->module_disable(part, inst, clkctrl_offs); + return 0; +} + +u32 omap_cm_xlate_clkctrl(u8 part, u16 inst, u16 clkctrl_offs) +{ + if (!cm_ll_data->xlate_clkctrl) { + WARN_ONCE(1, "cm: %s: no low-level function defined\n", + __func__); + return 0; + } + return cm_ll_data->xlate_clkctrl(part, inst, clkctrl_offs); +} + +/** + * cm_register - register per-SoC low-level data with the CM + * @cld: low-level per-SoC OMAP CM data & function pointers to register + * + * Register per-SoC low-level OMAP CM data and function pointers with + * the OMAP CM common interface. The caller must keep the data + * pointed to by @cld valid until it calls cm_unregister() and + * it returns successfully. Returns 0 upon success, -EINVAL if @cld + * is NULL, or -EEXIST if cm_register() has already been called + * without an intervening cm_unregister(). + */ +int cm_register(const struct cm_ll_data *cld) +{ + if (!cld) + return -EINVAL; + + if (cm_ll_data != &null_cm_ll_data) + return -EEXIST; + + cm_ll_data = cld; + + return 0; +} + +/** + * cm_unregister - unregister per-SoC low-level data & function pointers + * @cld: low-level per-SoC OMAP CM data & function pointers to unregister + * + * Unregister per-SoC low-level OMAP CM data and function pointers + * that were previously registered with cm_register(). The + * caller may not destroy any of the data pointed to by @cld until + * this function returns successfully. Returns 0 upon success, or + * -EINVAL if @cld is NULL or if @cld does not match the struct + * cm_ll_data * previously registered by cm_register(). + */ +int cm_unregister(const struct cm_ll_data *cld) +{ + if (!cld || cm_ll_data != cld) + return -EINVAL; + + cm_ll_data = &null_cm_ll_data; + + return 0; +} + +#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \ + defined(CONFIG_SOC_DRA7XX) +static struct omap_prcm_init_data cm_data __initdata = { + .index = TI_CLKM_CM, + .init = omap4_cm_init, +}; + +static struct omap_prcm_init_data cm2_data __initdata = { + .index = TI_CLKM_CM2, + .init = omap4_cm_init, +}; +#endif + +#ifdef CONFIG_ARCH_OMAP2 +static struct omap_prcm_init_data omap2_prcm_data __initdata = { + .index = TI_CLKM_CM, + .init = omap2xxx_cm_init, + .flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE, +}; +#endif + +#ifdef CONFIG_ARCH_OMAP3 +static struct omap_prcm_init_data omap3_cm_data __initdata = { + .index = TI_CLKM_CM, + .init = omap3xxx_cm_init, + .flags = CM_SINGLE_INSTANCE, + + /* + * IVA2 offset is a negative value, must offset the cm_base address + * by this to get it to positive side on the iomap + */ + .offset = -OMAP3430_IVA2_MOD, +}; +#endif + +#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_TI81XX) +static struct omap_prcm_init_data am3_prcm_data __initdata = { + .index = TI_CLKM_CM, + .flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE, + .init = am33xx_cm_init, +}; +#endif + +#ifdef CONFIG_SOC_AM43XX +static struct omap_prcm_init_data am4_prcm_data __initdata = { + .index = TI_CLKM_CM, + .flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE, + .init = omap4_cm_init, +}; +#endif + +static const struct of_device_id omap_cm_dt_match_table[] __initconst = { +#ifdef CONFIG_ARCH_OMAP2 + { .compatible = "ti,omap2-prcm", .data = &omap2_prcm_data }, +#endif +#ifdef CONFIG_ARCH_OMAP3 + { .compatible = "ti,omap3-cm", .data = &omap3_cm_data }, +#endif +#ifdef CONFIG_ARCH_OMAP4 + { .compatible = "ti,omap4-cm1", .data = &cm_data }, + { .compatible = "ti,omap4-cm2", .data = &cm2_data }, +#endif +#ifdef CONFIG_SOC_OMAP5 + { .compatible = "ti,omap5-cm-core-aon", .data = &cm_data }, + { .compatible = "ti,omap5-cm-core", .data = &cm2_data }, +#endif +#ifdef CONFIG_SOC_DRA7XX + { .compatible = "ti,dra7-cm-core-aon", .data = &cm_data }, + { .compatible = "ti,dra7-cm-core", .data = &cm2_data }, +#endif +#ifdef CONFIG_SOC_AM33XX + { .compatible = "ti,am3-prcm", .data = &am3_prcm_data }, +#endif +#ifdef CONFIG_SOC_AM43XX + { .compatible = "ti,am4-prcm", .data = &am4_prcm_data }, +#endif +#ifdef CONFIG_SOC_TI81XX + { .compatible = "ti,dm814-prcm", .data = &am3_prcm_data }, + { .compatible = "ti,dm816-prcm", .data = &am3_prcm_data }, +#endif + { } +}; + +/** + * omap2_cm_base_init - initialize iomappings for the CM drivers + * + * Detects and initializes the iomappings for the CM driver, based + * on the DT data. Returns 0 in success, negative error value + * otherwise. + */ +int __init omap2_cm_base_init(void) +{ + struct device_node *np; + const struct of_device_id *match; + struct omap_prcm_init_data *data; + struct resource res; + int ret; + struct omap_domain_base *mem = NULL; + + for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) { + data = (struct omap_prcm_init_data *)match->data; + + ret = of_address_to_resource(np, 0, &res); + if (ret) { + of_node_put(np); + return ret; + } + + if (data->index == TI_CLKM_CM) + mem = &cm_base; + + if (data->index == TI_CLKM_CM2) + mem = &cm2_base; + + data->mem = ioremap(res.start, resource_size(&res)); + + if (mem) { + mem->pa = res.start + data->offset; + mem->va = data->mem + data->offset; + mem->offset = data->offset; + } + + data->np = np; + + if (data->init && (data->flags & CM_SINGLE_INSTANCE || + (cm_base.va && cm2_base.va))) + data->init(data); + } + + return 0; +} + +/** + * omap_cm_init - low level init for the CM drivers + * + * Initializes the low level clock infrastructure for CM drivers. + * Returns 0 in success, negative error value in failure. + */ +int __init omap_cm_init(void) +{ + struct device_node *np; + const struct of_device_id *match; + const struct omap_prcm_init_data *data; + int ret; + + for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) { + data = match->data; + + if (data->flags & CM_NO_CLOCKS) + continue; + + ret = omap2_clk_provider_init(np, data->index, NULL, data->mem); + if (ret) { + of_node_put(np); + return ret; + } + } + + return 0; +} diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c new file mode 100644 index 000000000..49483a888 --- /dev/null +++ b/arch/arm/mach-omap2/cminst44xx.c @@ -0,0 +1,569 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 CM instance functions + * + * Copyright (C) 2009 Nokia Corporation + * Copyright (C) 2008-2011 Texas Instruments, Inc. + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + * + * This is needed since CM instances can be in the PRM, PRCM_MPU, CM1, + * or CM2 hardware modules. For example, the EMU_CM CM instance is in + * the PRM hardware module. What a mess... + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "cm.h" +#include "cm1_44xx.h" +#include "cm2_44xx.h" +#include "cm44xx.h" +#include "cm-regbits-34xx.h" +#include "prcm44xx.h" +#include "prm44xx.h" +#include "prcm_mpu44xx.h" +#include "prcm-common.h" + +#define OMAP4430_IDLEST_SHIFT 16 +#define OMAP4430_IDLEST_MASK (0x3 << 16) +#define OMAP4430_CLKTRCTRL_SHIFT 0 +#define OMAP4430_CLKTRCTRL_MASK (0x3 << 0) +#define OMAP4430_MODULEMODE_SHIFT 0 +#define OMAP4430_MODULEMODE_MASK (0x3 << 0) + +/* + * CLKCTRL_IDLEST_*: possible values for the CM_*_CLKCTRL.IDLEST bitfield: + * + * 0x0 func: Module is fully functional, including OCP + * 0x1 trans: Module is performing transition: wakeup, or sleep, or sleep + * abortion + * 0x2 idle: Module is in Idle mode (only OCP part). It is functional if + * using separate functional clock + * 0x3 disabled: Module is disabled and cannot be accessed + * + */ +#define CLKCTRL_IDLEST_FUNCTIONAL 0x0 +#define CLKCTRL_IDLEST_INTRANSITION 0x1 +#define CLKCTRL_IDLEST_INTERFACE_IDLE 0x2 +#define CLKCTRL_IDLEST_DISABLED 0x3 + +static struct omap_domain_base _cm_bases[OMAP4_MAX_PRCM_PARTITIONS]; + +/** + * omap_cm_base_init - Populates the cm partitions + * + * Populates the base addresses of the _cm_bases + * array used for read/write of cm module registers. + */ +static void omap_cm_base_init(void) +{ + memcpy(&_cm_bases[OMAP4430_PRM_PARTITION], &prm_base, sizeof(prm_base)); + memcpy(&_cm_bases[OMAP4430_CM1_PARTITION], &cm_base, sizeof(cm_base)); + memcpy(&_cm_bases[OMAP4430_CM2_PARTITION], &cm2_base, sizeof(cm2_base)); + memcpy(&_cm_bases[OMAP4430_PRCM_MPU_PARTITION], &prcm_mpu_base, + sizeof(prcm_mpu_base)); +} + +/* Private functions */ + +static u32 omap4_cminst_read_inst_reg(u8 part, u16 inst, u16 idx); + +/** + * _clkctrl_idlest - read a CM_*_CLKCTRL register; mask & shift IDLEST bitfield + * @part: PRCM partition ID that the CM_CLKCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * Return the IDLEST bitfield of a CM_*_CLKCTRL register, shifted down to + * bit 0. + */ +static u32 _clkctrl_idlest(u8 part, u16 inst, u16 clkctrl_offs) +{ + u32 v = omap4_cminst_read_inst_reg(part, inst, clkctrl_offs); + v &= OMAP4430_IDLEST_MASK; + v >>= OMAP4430_IDLEST_SHIFT; + return v; +} + +/** + * _is_module_ready - can module registers be accessed without causing an abort? + * @part: PRCM partition ID that the CM_CLKCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * Returns true if the module's CM_*_CLKCTRL.IDLEST bitfield is either + * *FUNCTIONAL or *INTERFACE_IDLE; false otherwise. + */ +static bool _is_module_ready(u8 part, u16 inst, u16 clkctrl_offs) +{ + u32 v; + + v = _clkctrl_idlest(part, inst, clkctrl_offs); + + return (v == CLKCTRL_IDLEST_FUNCTIONAL || + v == CLKCTRL_IDLEST_INTERFACE_IDLE) ? true : false; +} + +/* Read a register in a CM instance */ +static u32 omap4_cminst_read_inst_reg(u8 part, u16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_cm_bases[part].va); + return readl_relaxed(_cm_bases[part].va + inst + idx); +} + +/* Write into a register in a CM instance */ +static void omap4_cminst_write_inst_reg(u32 val, u8 part, u16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_cm_bases[part].va); + writel_relaxed(val, _cm_bases[part].va + inst + idx); +} + +/* Read-modify-write a register in CM1. Caller must lock */ +static u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, u16 inst, + s16 idx) +{ + u32 v; + + v = omap4_cminst_read_inst_reg(part, inst, idx); + v &= ~mask; + v |= bits; + omap4_cminst_write_inst_reg(v, part, inst, idx); + + return v; +} + +static u32 omap4_cminst_set_inst_reg_bits(u32 bits, u8 part, u16 inst, s16 idx) +{ + return omap4_cminst_rmw_inst_reg_bits(bits, bits, part, inst, idx); +} + +static u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, u16 inst, + s16 idx) +{ + return omap4_cminst_rmw_inst_reg_bits(bits, 0x0, part, inst, idx); +} + +static u32 omap4_cminst_read_inst_reg_bits(u8 part, u16 inst, s16 idx, u32 mask) +{ + u32 v; + + v = omap4_cminst_read_inst_reg(part, inst, idx); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +/* + * + */ + +/** + * _clktrctrl_write - write @c to a CM_CLKSTCTRL.CLKTRCTRL register bitfield + * @c: CLKTRCTRL register bitfield (LSB = bit 0, i.e., unshifted) + * @part: PRCM partition ID that the CM_CLKSTCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * @c must be the unshifted value for CLKTRCTRL - i.e., this function + * will handle the shift itself. + */ +static void _clktrctrl_write(u8 c, u8 part, u16 inst, u16 cdoffs) +{ + u32 v; + + v = omap4_cminst_read_inst_reg(part, inst, cdoffs + OMAP4_CM_CLKSTCTRL); + v &= ~OMAP4430_CLKTRCTRL_MASK; + v |= c << OMAP4430_CLKTRCTRL_SHIFT; + omap4_cminst_write_inst_reg(v, part, inst, cdoffs + OMAP4_CM_CLKSTCTRL); +} + +/** + * omap4_cminst_is_clkdm_in_hwsup - is a clockdomain in hwsup idle mode? + * @part: PRCM partition ID that the CM_CLKSTCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Returns true if the clockdomain referred to by (@part, @inst, @cdoffs) + * is in hardware-supervised idle mode, or 0 otherwise. + */ +static bool omap4_cminst_is_clkdm_in_hwsup(u8 part, u16 inst, u16 cdoffs) +{ + u32 v; + + v = omap4_cminst_read_inst_reg(part, inst, cdoffs + OMAP4_CM_CLKSTCTRL); + v &= OMAP4430_CLKTRCTRL_MASK; + v >>= OMAP4430_CLKTRCTRL_SHIFT; + + return (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? true : false; +} + +/** + * omap4_cminst_clkdm_enable_hwsup - put a clockdomain in hwsup-idle mode + * @part: PRCM partition ID that the clockdomain registers exist in + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Put a clockdomain referred to by (@part, @inst, @cdoffs) into + * hardware-supervised idle mode. No return value. + */ +static void omap4_cminst_clkdm_enable_hwsup(u8 part, u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, part, inst, cdoffs); +} + +/** + * omap4_cminst_clkdm_disable_hwsup - put a clockdomain in swsup-idle mode + * @part: PRCM partition ID that the clockdomain registers exist in + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Put a clockdomain referred to by (@part, @inst, @cdoffs) into + * software-supervised idle mode, i.e., controlled manually by the + * Linux OMAP clockdomain code. No return value. + */ +static void omap4_cminst_clkdm_disable_hwsup(u8 part, u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, part, inst, cdoffs); +} + +/** + * omap4_cminst_clkdm_force_wakeup - try to take a clockdomain out of idle + * @part: PRCM partition ID that the clockdomain registers exist in + * @inst: CM instance register offset (*_INST macro) + * @cdoffs: Clockdomain register offset (*_CDOFFS macro) + * + * Take a clockdomain referred to by (@part, @inst, @cdoffs) out of idle, + * waking it up. No return value. + */ +static void omap4_cminst_clkdm_force_wakeup(u8 part, u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, part, inst, cdoffs); +} + +/* + * + */ + +static void omap4_cminst_clkdm_force_sleep(u8 part, u16 inst, u16 cdoffs) +{ + _clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, part, inst, cdoffs); +} + +/** + * omap4_cminst_wait_module_ready - wait for a module to be in 'func' state + * @part: PRCM partition ID that the CM_CLKCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * @bit_shift: bit shift for the register, ignored for OMAP4+ + * + * Wait for the module IDLEST to be functional. If the idle state is in any + * the non functional state (trans, idle or disabled), module and thus the + * sysconfig cannot be accessed and will probably lead to an "imprecise + * external abort" + */ +static int omap4_cminst_wait_module_ready(u8 part, s16 inst, u16 clkctrl_offs, + u8 bit_shift) +{ + int i = 0; + + omap_test_timeout(_is_module_ready(part, inst, clkctrl_offs), + MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + +/** + * omap4_cminst_wait_module_idle - wait for a module to be in 'disabled' + * state + * @part: PRCM partition ID that the CM_CLKCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * @bit_shift: Bit shift for the register, ignored for OMAP4+ + * + * Wait for the module IDLEST to be disabled. Some PRCM transition, + * like reset assertion or parent clock de-activation must wait the + * module to be fully disabled. + */ +static int omap4_cminst_wait_module_idle(u8 part, s16 inst, u16 clkctrl_offs, + u8 bit_shift) +{ + int i = 0; + + omap_test_timeout((_clkctrl_idlest(part, inst, clkctrl_offs) == + CLKCTRL_IDLEST_DISABLED), + MAX_MODULE_DISABLE_TIME, i); + + return (i < MAX_MODULE_DISABLE_TIME) ? 0 : -EBUSY; +} + +/** + * omap4_cminst_module_enable - Enable the modulemode inside CLKCTRL + * @mode: Module mode (SW or HW) + * @part: PRCM partition ID that the CM_CLKCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * No return value. + */ +static void omap4_cminst_module_enable(u8 mode, u8 part, u16 inst, + u16 clkctrl_offs) +{ + u32 v; + + v = omap4_cminst_read_inst_reg(part, inst, clkctrl_offs); + v &= ~OMAP4430_MODULEMODE_MASK; + v |= mode << OMAP4430_MODULEMODE_SHIFT; + omap4_cminst_write_inst_reg(v, part, inst, clkctrl_offs); +} + +/** + * omap4_cminst_module_disable - Disable the module inside CLKCTRL + * @part: PRCM partition ID that the CM_CLKCTRL register exists in + * @inst: CM instance register offset (*_INST macro) + * @clkctrl_offs: Module clock control register offset (*_CLKCTRL macro) + * + * No return value. + */ +static void omap4_cminst_module_disable(u8 part, u16 inst, u16 clkctrl_offs) +{ + u32 v; + + v = omap4_cminst_read_inst_reg(part, inst, clkctrl_offs); + v &= ~OMAP4430_MODULEMODE_MASK; + omap4_cminst_write_inst_reg(v, part, inst, clkctrl_offs); +} + +/* + * Clockdomain low-level functions + */ + +static int omap4_clkdm_add_wkup_sleep_dep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap4_cminst_set_inst_reg_bits((1 << clkdm2->dep_bit), + clkdm1->prcm_partition, + clkdm1->cm_inst, clkdm1->clkdm_offs + + OMAP4_CM_STATICDEP); + return 0; +} + +static int omap4_clkdm_del_wkup_sleep_dep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap4_cminst_clear_inst_reg_bits((1 << clkdm2->dep_bit), + clkdm1->prcm_partition, + clkdm1->cm_inst, clkdm1->clkdm_offs + + OMAP4_CM_STATICDEP); + return 0; +} + +static int omap4_clkdm_read_wkup_sleep_dep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + return omap4_cminst_read_inst_reg_bits(clkdm1->prcm_partition, + clkdm1->cm_inst, + clkdm1->clkdm_offs + + OMAP4_CM_STATICDEP, + (1 << clkdm2->dep_bit)); +} + +static int omap4_clkdm_clear_all_wkup_sleep_deps(struct clockdomain *clkdm) +{ + struct clkdm_dep *cd; + u32 mask = 0; + + if (!clkdm->prcm_partition) + return 0; + + for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + mask |= 1 << cd->clkdm->dep_bit; + cd->wkdep_usecount = 0; + } + + omap4_cminst_clear_inst_reg_bits(mask, clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs + + OMAP4_CM_STATICDEP); + return 0; +} + +static int omap4_clkdm_sleep(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_HWSUP) + omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, + clkdm->clkdm_offs); + else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP) + omap4_cminst_clkdm_force_sleep(clkdm->prcm_partition, + clkdm->cm_inst, + clkdm->clkdm_offs); + else + return -EINVAL; + + return 0; +} + +static int omap4_clkdm_wakeup(struct clockdomain *clkdm) +{ + omap4_cminst_clkdm_force_wakeup(clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs); + return 0; +} + +static void omap4_clkdm_allow_idle(struct clockdomain *clkdm) +{ + omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs); +} + +static void omap4_clkdm_deny_idle(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + omap4_clkdm_wakeup(clkdm); + else + omap4_cminst_clkdm_disable_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, + clkdm->clkdm_offs); +} + +static int omap4_clkdm_clk_enable(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) + return omap4_clkdm_wakeup(clkdm); + + return 0; +} + +static int omap4_clkdm_clk_disable(struct clockdomain *clkdm) +{ + bool hwsup = false; + + if (!clkdm->prcm_partition) + return 0; + + /* + * The CLKDM_MISSING_IDLE_REPORTING flag documentation has + * more details on the unpleasant problem this is working + * around + */ + if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING && + !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) { + omap4_clkdm_allow_idle(clkdm); + return 0; + } + + hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition, + clkdm->cm_inst, clkdm->clkdm_offs); + + if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) + omap4_clkdm_sleep(clkdm); + + return 0; +} + +static u32 omap4_cminst_xlate_clkctrl(u8 part, u16 inst, u16 offset) +{ + return _cm_bases[part].pa + inst + offset; +} + +/** + * omap4_clkdm_save_context - Save the clockdomain modulemode context + * @clkdm: The clockdomain pointer whose context needs to be saved + * + * Save the clockdomain modulemode context. + */ +static int omap4_clkdm_save_context(struct clockdomain *clkdm) +{ + clkdm->context = omap4_cminst_read_inst_reg(clkdm->prcm_partition, + clkdm->cm_inst, + clkdm->clkdm_offs + + OMAP4_CM_CLKSTCTRL); + clkdm->context &= OMAP4430_MODULEMODE_MASK; + return 0; +} + +/** + * omap4_clkdm_restore_context - Restore the clockdomain modulemode context + * @clkdm: The clockdomain pointer whose context needs to be restored + * + * Restore the clockdomain modulemode context. + */ +static int omap4_clkdm_restore_context(struct clockdomain *clkdm) +{ + switch (clkdm->context) { + case OMAP34XX_CLKSTCTRL_DISABLE_AUTO: + omap4_clkdm_deny_idle(clkdm); + break; + case OMAP34XX_CLKSTCTRL_FORCE_SLEEP: + omap4_clkdm_sleep(clkdm); + break; + case OMAP34XX_CLKSTCTRL_FORCE_WAKEUP: + omap4_clkdm_wakeup(clkdm); + break; + case OMAP34XX_CLKSTCTRL_ENABLE_AUTO: + omap4_clkdm_allow_idle(clkdm); + break; + } + return 0; +} + +struct clkdm_ops omap4_clkdm_operations = { + .clkdm_add_wkdep = omap4_clkdm_add_wkup_sleep_dep, + .clkdm_del_wkdep = omap4_clkdm_del_wkup_sleep_dep, + .clkdm_read_wkdep = omap4_clkdm_read_wkup_sleep_dep, + .clkdm_clear_all_wkdeps = omap4_clkdm_clear_all_wkup_sleep_deps, + .clkdm_add_sleepdep = omap4_clkdm_add_wkup_sleep_dep, + .clkdm_del_sleepdep = omap4_clkdm_del_wkup_sleep_dep, + .clkdm_read_sleepdep = omap4_clkdm_read_wkup_sleep_dep, + .clkdm_clear_all_sleepdeps = omap4_clkdm_clear_all_wkup_sleep_deps, + .clkdm_sleep = omap4_clkdm_sleep, + .clkdm_wakeup = omap4_clkdm_wakeup, + .clkdm_allow_idle = omap4_clkdm_allow_idle, + .clkdm_deny_idle = omap4_clkdm_deny_idle, + .clkdm_clk_enable = omap4_clkdm_clk_enable, + .clkdm_clk_disable = omap4_clkdm_clk_disable, + .clkdm_save_context = omap4_clkdm_save_context, + .clkdm_restore_context = omap4_clkdm_restore_context, +}; + +struct clkdm_ops am43xx_clkdm_operations = { + .clkdm_sleep = omap4_clkdm_sleep, + .clkdm_wakeup = omap4_clkdm_wakeup, + .clkdm_allow_idle = omap4_clkdm_allow_idle, + .clkdm_deny_idle = omap4_clkdm_deny_idle, + .clkdm_clk_enable = omap4_clkdm_clk_enable, + .clkdm_clk_disable = omap4_clkdm_clk_disable, +}; + +static const struct cm_ll_data omap4xxx_cm_ll_data = { + .wait_module_ready = &omap4_cminst_wait_module_ready, + .wait_module_idle = &omap4_cminst_wait_module_idle, + .module_enable = &omap4_cminst_module_enable, + .module_disable = &omap4_cminst_module_disable, + .xlate_clkctrl = &omap4_cminst_xlate_clkctrl, +}; + +int __init omap4_cm_init(const struct omap_prcm_init_data *data) +{ + omap_cm_base_init(); + + return cm_register(&omap4xxx_cm_ll_data); +} + +static void __exit omap4_cm_exit(void) +{ + cm_unregister(&omap4xxx_cm_ll_data); +} +__exitcall(omap4_cm_exit); diff --git a/arch/arm/mach-omap2/common-board-devices.h b/arch/arm/mach-omap2/common-board-devices.h new file mode 100644 index 000000000..69694af71 --- /dev/null +++ b/arch/arm/mach-omap2/common-board-devices.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __OMAP_COMMON_BOARD_DEVICES__ +#define __OMAP_COMMON_BOARD_DEVICES__ + +#include <linux/mfd/menelaus.h> + +void *n8x0_legacy_init(void); + +extern struct menelaus_platform_data n8x0_menelaus_platform_data; + +#endif /* __OMAP_COMMON_BOARD_DEVICES__ */ diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c new file mode 100644 index 000000000..a4af202cb --- /dev/null +++ b/arch/arm/mach-omap2/common.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/common.c + * + * Code common to all OMAP2+ machines. + * + * Copyright (C) 2009 Texas Instruments + * Copyright (C) 2010 Nokia Corporation + * Tony Lindgren <tony@atomide.com> + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + */ +#include <linux/kernel.h> +#include <linux/init.h> + +#include "common.h" +#include "omap-secure.h" + +/* + * Stub function for OMAP2 so that common files + * continue to build when custom builds are used + */ +int __weak omap_secure_ram_reserve_memblock(void) +{ + return 0; +} + +void __init omap_reserve(void) +{ + omap_secure_ram_reserve_memblock(); + omap_barrier_reserve_memblock(); +} diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h new file mode 100644 index 000000000..9d60799e9 --- /dev/null +++ b/arch/arm/mach-omap2/common.h @@ -0,0 +1,349 @@ +/* + * Header for code common to all OMAP2+ machines. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H +#define __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H +#ifndef __ASSEMBLER__ + +#include <linux/irq.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/mfd/twl.h> +#include <linux/platform_data/i2c-omap.h> +#include <linux/reboot.h> +#include <linux/irqchip/irq-omap-intc.h> + +#include <asm/proc-fns.h> +#include <asm/hardware/cache-l2x0.h> + +#include "i2c.h" + +#define OMAP_INTC_START NR_IRQS + +extern int (*omap_pm_soc_init)(void); +int omap_pm_nop_init(void); + +#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) +int omap3_pm_init(void); +#else +static inline int omap3_pm_init(void) +{ + return 0; +} +#endif + +#if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)) +int omap4_pm_init(void); +int omap4_pm_init_early(void); +#else +static inline int omap4_pm_init(void) +{ + return 0; +} + +static inline int omap4_pm_init_early(void) +{ + return 0; +} +#endif + +#if defined(CONFIG_PM) && (defined(CONFIG_SOC_AM33XX) || \ + defined(CONFIG_SOC_AM43XX)) +int amx3_common_pm_init(void); +#else +static inline int amx3_common_pm_init(void) +{ + return 0; +} +#endif + +#ifdef CONFIG_CACHE_L2X0 +int omap_l2_cache_init(void); +#define OMAP_L2C_AUX_CTRL (L2C_AUX_CTRL_SHARED_OVERRIDE | \ + L310_AUX_CTRL_DATA_PREFETCH | \ + L310_AUX_CTRL_INSTR_PREFETCH) +void omap4_l2c310_write_sec(unsigned long val, unsigned reg); +#else +static inline int omap_l2_cache_init(void) +{ + return 0; +} + +#define OMAP_L2C_AUX_CTRL 0 +#define omap4_l2c310_write_sec NULL +#endif + +#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER +extern void omap5_realtime_timer_init(void); +#else +static inline void omap5_realtime_timer_init(void) +{ +} +#endif + +void omap2420_init_early(void); +void omap2430_init_early(void); +void omap3430_init_early(void); +void omap3630_init_early(void); +void am33xx_init_early(void); +void am35xx_init_early(void); +void ti814x_init_early(void); +void ti816x_init_early(void); +void am43xx_init_early(void); +void am43xx_init_late(void); +void omap4430_init_early(void); +void omap5_init_early(void); +void omap3_init_late(void); +void omap4430_init_late(void); +void ti81xx_init_late(void); +void am33xx_init_late(void); +void omap5_init_late(void); +void dra7xx_init_early(void); +void dra7xx_init_late(void); + +#ifdef CONFIG_SOC_BUS +void omap_soc_device_init(void); +#else +static inline void omap_soc_device_init(void) +{ +} +#endif + +#if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430) +void omap2xxx_restart(enum reboot_mode mode, const char *cmd); +#else +static inline void omap2xxx_restart(enum reboot_mode mode, const char *cmd) +{ +} +#endif + +#ifdef CONFIG_SOC_AM33XX +void am33xx_restart(enum reboot_mode mode, const char *cmd); +#else +static inline void am33xx_restart(enum reboot_mode mode, const char *cmd) +{ +} +#endif + +#ifdef CONFIG_ARCH_OMAP3 +void omap3xxx_restart(enum reboot_mode mode, const char *cmd); +#else +static inline void omap3xxx_restart(enum reboot_mode mode, const char *cmd) +{ +} +#endif + +#ifdef CONFIG_SOC_TI81XX +void ti81xx_restart(enum reboot_mode mode, const char *cmd); +#else +static inline void ti81xx_restart(enum reboot_mode mode, const char *cmd) +{ +} +#endif + +#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \ + defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM43XX) +void omap44xx_restart(enum reboot_mode mode, const char *cmd); +#else +static inline void omap44xx_restart(enum reboot_mode mode, const char *cmd) +{ +} +#endif + +#ifdef CONFIG_OMAP_INTERCONNECT_BARRIER +void omap_barrier_reserve_memblock(void); +void omap_barriers_init(void); +#else +static inline void omap_barrier_reserve_memblock(void) +{ +} +#endif + +/* This gets called from mach-omap2/io.c, do not call this */ +void __init omap2_set_globals_tap(u32 class, void __iomem *tap); + +void __init omap242x_map_io(void); +void __init omap243x_map_io(void); +void __init omap3_map_io(void); +void __init am33xx_map_io(void); +void __init omap4_map_io(void); +void __init omap5_map_io(void); +void __init dra7xx_map_io(void); +void __init ti81xx_map_io(void); + +/** + * omap_test_timeout - busy-loop, testing a condition + * @cond: condition to test until it evaluates to true + * @timeout: maximum number of microseconds in the timeout + * @index: loop index (integer) + * + * Loop waiting for @cond to become true or until at least @timeout + * microseconds have passed. To use, define some integer @index in the + * calling code. After running, if @index == @timeout, then the loop has + * timed out. + */ +#define omap_test_timeout(cond, timeout, index) \ +({ \ + for (index = 0; index < timeout; index++) { \ + if (cond) \ + break; \ + udelay(1); \ + } \ +}) + +void omap_gic_of_init(void); + +#ifdef CONFIG_CACHE_L2X0 +extern void __iomem *omap4_get_l2cache_base(void); +#endif + +struct device_node; + +#ifdef CONFIG_SMP +extern void __iomem *omap4_get_scu_base(void); +#else +static inline void __iomem *omap4_get_scu_base(void) +{ + return NULL; +} +#endif + +extern void gic_dist_disable(void); +extern void gic_dist_enable(void); +extern bool gic_dist_disabled(void); +extern void gic_timer_retrigger(void); +extern void _omap_smc1(u32 fn, u32 arg); +extern void omap4_sar_ram_init(void); +extern void __iomem *omap4_get_sar_ram_base(void); +extern void omap4_mpuss_early_init(void); +extern void omap_do_wfi(void); +extern void omap_interconnect_sync(void); + +#ifdef CONFIG_SMP +/* Needed for secondary core boot */ +extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); +extern void omap_auxcoreboot_addr(u32 cpu_addr); +extern u32 omap_read_auxcoreboot0(void); + +extern void omap4_cpu_die(unsigned int cpu); +extern int omap4_cpu_kill(unsigned int cpu); + +extern const struct smp_operations omap4_smp_ops; +#endif + +extern u32 omap4_get_cpu1_ns_pa_addr(void); + +#if defined(CONFIG_SMP) && defined(CONFIG_PM) +extern int omap4_mpuss_init(void); +extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state, + bool rcuidle); +extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state); +#else +static inline int omap4_enter_lowpower(unsigned int cpu, + unsigned int power_state, + bool rcuidle) +{ + cpu_do_idle(); + return 0; +} + +static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state) +{ + cpu_do_idle(); + return 0; +} + +static inline int omap4_mpuss_init(void) +{ + return 0; +} + +#endif + +#ifdef CONFIG_ARCH_OMAP4 +void omap4_secondary_startup(void); +void omap4460_secondary_startup(void); +int omap4_finish_suspend(unsigned long cpu_state); +void omap4_cpu_resume(void); +#else +static inline void omap4_secondary_startup(void) +{ +} + +static inline void omap4460_secondary_startup(void) +{ +} +static inline int omap4_finish_suspend(unsigned long cpu_state) +{ + return 0; +} +static inline void omap4_cpu_resume(void) +{ +} +#endif + +#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX) +void omap5_secondary_startup(void); +void omap5_secondary_hyp_startup(void); +#else +static inline void omap5_secondary_startup(void) +{ +} + +static inline void omap5_secondary_hyp_startup(void) +{ +} +#endif + +struct omap_system_dma_plat_info; + +void pdata_quirks_init(const struct of_device_id *); +void omap_auxdata_legacy_init(struct device *dev); +void omap_pcs_legacy_init(int irq, void (*rearm)(void)); +extern struct omap_system_dma_plat_info dma_plat_info; + +struct omap_sdrc_params; +extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1); +extern void omap_reserve(void); + +struct omap_hwmod; +extern int omap_dss_reset(struct omap_hwmod *); + +/* SoC specific clock initializer */ +int omap_clk_init(void); + +#if IS_ENABLED(CONFIG_OMAP_IOMMU) +int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev, bool request, + u8 *pwrst); +#else +static inline int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev, + bool request, u8 *pwrst) +{ + return 0; +} +#endif + +#endif /* __ASSEMBLER__ */ +#endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c new file mode 100644 index 000000000..eb6fc7c61 --- /dev/null +++ b/arch/arm/mach-omap2/control.c @@ -0,0 +1,793 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2/3 System Control Module register access + * + * Copyright (C) 2007, 2012 Texas Instruments, Inc. + * Copyright (C) 2007 Nokia Corporation + * + * Written by Paul Walmsley + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/of_address.h> +#include <linux/regmap.h> +#include <linux/mfd/syscon.h> +#include <linux/cpu_pm.h> + +#include "soc.h" +#include "iomap.h" +#include "common.h" +#include "cm-regbits-34xx.h" +#include "prm-regbits-34xx.h" +#include "prm3xxx.h" +#include "cm3xxx.h" +#include "sdrc.h" +#include "pm.h" +#include "control.h" +#include "clock.h" + +/* Used by omap3_ctrl_save_padconf() */ +#define START_PADCONF_SAVE 0x2 +#define PADCONF_SAVE_DONE 0x1 + +static void __iomem *omap2_ctrl_base; +static s16 omap2_ctrl_offset; + +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) +struct omap3_scratchpad { + u32 boot_config_ptr; + u32 public_restore_ptr; + u32 secure_ram_restore_ptr; + u32 sdrc_module_semaphore; + u32 prcm_block_offset; + u32 sdrc_block_offset; +}; + +struct omap3_scratchpad_prcm_block { + u32 prm_contents[2]; + u32 cm_contents[11]; + u32 prcm_block_size; +}; + +struct omap3_scratchpad_sdrc_block { + u16 sysconfig; + u16 cs_cfg; + u16 sharing; + u16 err_type; + u32 dll_a_ctrl; + u32 dll_b_ctrl; + u32 power; + u32 cs_0; + u32 mcfg_0; + u16 mr_0; + u16 emr_1_0; + u16 emr_2_0; + u16 emr_3_0; + u32 actim_ctrla_0; + u32 actim_ctrlb_0; + u32 rfr_ctrl_0; + u32 cs_1; + u32 mcfg_1; + u16 mr_1; + u16 emr_1_1; + u16 emr_2_1; + u16 emr_3_1; + u32 actim_ctrla_1; + u32 actim_ctrlb_1; + u32 rfr_ctrl_1; + u16 dcdl_1_ctrl; + u16 dcdl_2_ctrl; + u32 flags; + u32 block_size; +}; + +void *omap3_secure_ram_storage; + +/* + * This is used to store ARM registers in SDRAM before attempting + * an MPU OFF. The save and restore happens from the SRAM sleep code. + * The address is stored in scratchpad, so that it can be used + * during the restore path. + */ +u32 omap3_arm_context[128]; + +struct omap3_control_regs { + u32 sysconfig; + u32 devconf0; + u32 mem_dftrw0; + u32 mem_dftrw1; + u32 msuspendmux_0; + u32 msuspendmux_1; + u32 msuspendmux_2; + u32 msuspendmux_3; + u32 msuspendmux_4; + u32 msuspendmux_5; + u32 sec_ctrl; + u32 devconf1; + u32 csirxfe; + u32 iva2_bootaddr; + u32 iva2_bootmod; + u32 wkup_ctrl; + u32 debobs_0; + u32 debobs_1; + u32 debobs_2; + u32 debobs_3; + u32 debobs_4; + u32 debobs_5; + u32 debobs_6; + u32 debobs_7; + u32 debobs_8; + u32 prog_io0; + u32 prog_io1; + u32 dss_dpll_spreading; + u32 core_dpll_spreading; + u32 per_dpll_spreading; + u32 usbhost_dpll_spreading; + u32 pbias_lite; + u32 temp_sensor; + u32 sramldo4; + u32 sramldo5; + u32 csi; + u32 padconf_sys_nirq; +}; + +static struct omap3_control_regs control_context; +#endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */ + +u8 omap_ctrl_readb(u16 offset) +{ + u32 val; + u8 byte_offset = offset & 0x3; + + val = omap_ctrl_readl(offset); + + return (val >> (byte_offset * 8)) & 0xff; +} + +u16 omap_ctrl_readw(u16 offset) +{ + u32 val; + u16 byte_offset = offset & 0x2; + + val = omap_ctrl_readl(offset); + + return (val >> (byte_offset * 8)) & 0xffff; +} + +u32 omap_ctrl_readl(u16 offset) +{ + offset &= 0xfffc; + + return readl_relaxed(omap2_ctrl_base + offset); +} + +void omap_ctrl_writeb(u8 val, u16 offset) +{ + u32 tmp; + u8 byte_offset = offset & 0x3; + + tmp = omap_ctrl_readl(offset); + + tmp &= 0xffffffff ^ (0xff << (byte_offset * 8)); + tmp |= val << (byte_offset * 8); + + omap_ctrl_writel(tmp, offset); +} + +void omap_ctrl_writew(u16 val, u16 offset) +{ + u32 tmp; + u8 byte_offset = offset & 0x2; + + tmp = omap_ctrl_readl(offset); + + tmp &= 0xffffffff ^ (0xffff << (byte_offset * 8)); + tmp |= val << (byte_offset * 8); + + omap_ctrl_writel(tmp, offset); +} + +void omap_ctrl_writel(u32 val, u16 offset) +{ + offset &= 0xfffc; + writel_relaxed(val, omap2_ctrl_base + offset); +} + +#ifdef CONFIG_ARCH_OMAP3 + +/** + * omap3_ctrl_write_boot_mode - set scratchpad boot mode for the next boot + * @bootmode: 8-bit value to pass to some boot code + * + * Set the bootmode in the scratchpad RAM. This is used after the + * system restarts. Not sure what actually uses this - it may be the + * bootloader, rather than the boot ROM - contrary to the preserved + * comment below. No return value. + */ +void omap3_ctrl_write_boot_mode(u8 bootmode) +{ + u32 l; + + l = ('B' << 24) | ('M' << 16) | bootmode; + + /* + * Reserve the first word in scratchpad for communicating + * with the boot ROM. A pointer to a data structure + * describing the boot process can be stored there, + * cf. OMAP34xx TRM, Initialization / Software Booting + * Configuration. + * + * XXX This should use some omap_ctrl_writel()-type function + */ + writel_relaxed(l, OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD + 4)); +} + +#endif + +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) +/* Populate the scratchpad structure with restore structure */ +void omap3_save_scratchpad_contents(void) +{ + void __iomem *scratchpad_address; + u32 arm_context_addr; + struct omap3_scratchpad scratchpad_contents; + struct omap3_scratchpad_prcm_block prcm_block_contents; + struct omap3_scratchpad_sdrc_block sdrc_block_contents; + + /* + * Populate the Scratchpad contents + * + * The "get_*restore_pointer" functions are used to provide a + * physical restore address where the ROM code jumps while waking + * up from MPU OFF/OSWR state. + * The restore pointer is stored into the scratchpad. + */ + scratchpad_contents.boot_config_ptr = 0x0; + if (cpu_is_omap3630()) + scratchpad_contents.public_restore_ptr = + __pa_symbol(omap3_restore_3630); + else if (omap_rev() != OMAP3430_REV_ES3_0 && + omap_rev() != OMAP3430_REV_ES3_1 && + omap_rev() != OMAP3430_REV_ES3_1_2) + scratchpad_contents.public_restore_ptr = + __pa_symbol(omap3_restore); + else + scratchpad_contents.public_restore_ptr = + __pa_symbol(omap3_restore_es3); + + if (omap_type() == OMAP2_DEVICE_TYPE_GP) + scratchpad_contents.secure_ram_restore_ptr = 0x0; + else + scratchpad_contents.secure_ram_restore_ptr = + (u32) __pa(omap3_secure_ram_storage); + scratchpad_contents.sdrc_module_semaphore = 0x0; + scratchpad_contents.prcm_block_offset = 0x2C; + scratchpad_contents.sdrc_block_offset = 0x64; + + /* Populate the PRCM block contents */ + omap3_prm_save_scratchpad_contents(prcm_block_contents.prm_contents); + omap3_cm_save_scratchpad_contents(prcm_block_contents.cm_contents); + + prcm_block_contents.prcm_block_size = 0x0; + + /* Populate the SDRC block contents */ + sdrc_block_contents.sysconfig = + (sdrc_read_reg(SDRC_SYSCONFIG) & 0xFFFF); + sdrc_block_contents.cs_cfg = + (sdrc_read_reg(SDRC_CS_CFG) & 0xFFFF); + sdrc_block_contents.sharing = + (sdrc_read_reg(SDRC_SHARING) & 0xFFFF); + sdrc_block_contents.err_type = + (sdrc_read_reg(SDRC_ERR_TYPE) & 0xFFFF); + sdrc_block_contents.dll_a_ctrl = sdrc_read_reg(SDRC_DLLA_CTRL); + sdrc_block_contents.dll_b_ctrl = 0x0; + /* + * Due to a OMAP3 errata (1.142), on EMU/HS devices SRDC should + * be programed to issue automatic self refresh on timeout + * of AUTO_CNT = 1 prior to any transition to OFF mode. + */ + if ((omap_type() != OMAP2_DEVICE_TYPE_GP) + && (omap_rev() >= OMAP3430_REV_ES3_0)) + sdrc_block_contents.power = (sdrc_read_reg(SDRC_POWER) & + ~(SDRC_POWER_AUTOCOUNT_MASK| + SDRC_POWER_CLKCTRL_MASK)) | + (1 << SDRC_POWER_AUTOCOUNT_SHIFT) | + SDRC_SELF_REFRESH_ON_AUTOCOUNT; + else + sdrc_block_contents.power = sdrc_read_reg(SDRC_POWER); + + sdrc_block_contents.cs_0 = 0x0; + sdrc_block_contents.mcfg_0 = sdrc_read_reg(SDRC_MCFG_0); + sdrc_block_contents.mr_0 = (sdrc_read_reg(SDRC_MR_0) & 0xFFFF); + sdrc_block_contents.emr_1_0 = 0x0; + sdrc_block_contents.emr_2_0 = 0x0; + sdrc_block_contents.emr_3_0 = 0x0; + sdrc_block_contents.actim_ctrla_0 = + sdrc_read_reg(SDRC_ACTIM_CTRL_A_0); + sdrc_block_contents.actim_ctrlb_0 = + sdrc_read_reg(SDRC_ACTIM_CTRL_B_0); + sdrc_block_contents.rfr_ctrl_0 = + sdrc_read_reg(SDRC_RFR_CTRL_0); + sdrc_block_contents.cs_1 = 0x0; + sdrc_block_contents.mcfg_1 = sdrc_read_reg(SDRC_MCFG_1); + sdrc_block_contents.mr_1 = sdrc_read_reg(SDRC_MR_1) & 0xFFFF; + sdrc_block_contents.emr_1_1 = 0x0; + sdrc_block_contents.emr_2_1 = 0x0; + sdrc_block_contents.emr_3_1 = 0x0; + sdrc_block_contents.actim_ctrla_1 = + sdrc_read_reg(SDRC_ACTIM_CTRL_A_1); + sdrc_block_contents.actim_ctrlb_1 = + sdrc_read_reg(SDRC_ACTIM_CTRL_B_1); + sdrc_block_contents.rfr_ctrl_1 = + sdrc_read_reg(SDRC_RFR_CTRL_1); + sdrc_block_contents.dcdl_1_ctrl = 0x0; + sdrc_block_contents.dcdl_2_ctrl = 0x0; + sdrc_block_contents.flags = 0x0; + sdrc_block_contents.block_size = 0x0; + + arm_context_addr = __pa_symbol(omap3_arm_context); + + /* Copy all the contents to the scratchpad location */ + scratchpad_address = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD); + memcpy_toio(scratchpad_address, &scratchpad_contents, + sizeof(scratchpad_contents)); + /* Scratchpad contents being 32 bits, a divide by 4 done here */ + memcpy_toio(scratchpad_address + + scratchpad_contents.prcm_block_offset, + &prcm_block_contents, sizeof(prcm_block_contents)); + memcpy_toio(scratchpad_address + + scratchpad_contents.sdrc_block_offset, + &sdrc_block_contents, sizeof(sdrc_block_contents)); + /* + * Copies the address of the location in SDRAM where ARM + * registers get saved during a MPU OFF transition. + */ + memcpy_toio(scratchpad_address + + scratchpad_contents.sdrc_block_offset + + sizeof(sdrc_block_contents), &arm_context_addr, 4); +} + +void omap3_control_save_context(void) +{ + control_context.sysconfig = omap_ctrl_readl(OMAP2_CONTROL_SYSCONFIG); + control_context.devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); + control_context.mem_dftrw0 = + omap_ctrl_readl(OMAP343X_CONTROL_MEM_DFTRW0); + control_context.mem_dftrw1 = + omap_ctrl_readl(OMAP343X_CONTROL_MEM_DFTRW1); + control_context.msuspendmux_0 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_0); + control_context.msuspendmux_1 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_1); + control_context.msuspendmux_2 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_2); + control_context.msuspendmux_3 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_3); + control_context.msuspendmux_4 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_4); + control_context.msuspendmux_5 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_5); + control_context.sec_ctrl = omap_ctrl_readl(OMAP2_CONTROL_SEC_CTRL); + control_context.devconf1 = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); + control_context.csirxfe = omap_ctrl_readl(OMAP343X_CONTROL_CSIRXFE); + control_context.iva2_bootaddr = + omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTADDR); + control_context.iva2_bootmod = + omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTMOD); + control_context.wkup_ctrl = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL); + control_context.debobs_0 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(0)); + control_context.debobs_1 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(1)); + control_context.debobs_2 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(2)); + control_context.debobs_3 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(3)); + control_context.debobs_4 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(4)); + control_context.debobs_5 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(5)); + control_context.debobs_6 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(6)); + control_context.debobs_7 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(7)); + control_context.debobs_8 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(8)); + control_context.prog_io0 = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO0); + control_context.prog_io1 = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1); + control_context.dss_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_DSS_DPLL_SPREADING); + control_context.core_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_CORE_DPLL_SPREADING); + control_context.per_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_PER_DPLL_SPREADING); + control_context.usbhost_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_USBHOST_DPLL_SPREADING); + control_context.pbias_lite = + omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE); + control_context.temp_sensor = + omap_ctrl_readl(OMAP343X_CONTROL_TEMP_SENSOR); + control_context.sramldo4 = omap_ctrl_readl(OMAP343X_CONTROL_SRAMLDO4); + control_context.sramldo5 = omap_ctrl_readl(OMAP343X_CONTROL_SRAMLDO5); + control_context.csi = omap_ctrl_readl(OMAP343X_CONTROL_CSI); + control_context.padconf_sys_nirq = + omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_SYSNIRQ); +} + +void omap3_control_restore_context(void) +{ + omap_ctrl_writel(control_context.sysconfig, OMAP2_CONTROL_SYSCONFIG); + omap_ctrl_writel(control_context.devconf0, OMAP2_CONTROL_DEVCONF0); + omap_ctrl_writel(control_context.mem_dftrw0, + OMAP343X_CONTROL_MEM_DFTRW0); + omap_ctrl_writel(control_context.mem_dftrw1, + OMAP343X_CONTROL_MEM_DFTRW1); + omap_ctrl_writel(control_context.msuspendmux_0, + OMAP2_CONTROL_MSUSPENDMUX_0); + omap_ctrl_writel(control_context.msuspendmux_1, + OMAP2_CONTROL_MSUSPENDMUX_1); + omap_ctrl_writel(control_context.msuspendmux_2, + OMAP2_CONTROL_MSUSPENDMUX_2); + omap_ctrl_writel(control_context.msuspendmux_3, + OMAP2_CONTROL_MSUSPENDMUX_3); + omap_ctrl_writel(control_context.msuspendmux_4, + OMAP2_CONTROL_MSUSPENDMUX_4); + omap_ctrl_writel(control_context.msuspendmux_5, + OMAP2_CONTROL_MSUSPENDMUX_5); + omap_ctrl_writel(control_context.sec_ctrl, OMAP2_CONTROL_SEC_CTRL); + omap_ctrl_writel(control_context.devconf1, OMAP343X_CONTROL_DEVCONF1); + omap_ctrl_writel(control_context.csirxfe, OMAP343X_CONTROL_CSIRXFE); + omap_ctrl_writel(control_context.iva2_bootaddr, + OMAP343X_CONTROL_IVA2_BOOTADDR); + omap_ctrl_writel(control_context.iva2_bootmod, + OMAP343X_CONTROL_IVA2_BOOTMOD); + omap_ctrl_writel(control_context.wkup_ctrl, OMAP34XX_CONTROL_WKUP_CTRL); + omap_ctrl_writel(control_context.debobs_0, OMAP343X_CONTROL_DEBOBS(0)); + omap_ctrl_writel(control_context.debobs_1, OMAP343X_CONTROL_DEBOBS(1)); + omap_ctrl_writel(control_context.debobs_2, OMAP343X_CONTROL_DEBOBS(2)); + omap_ctrl_writel(control_context.debobs_3, OMAP343X_CONTROL_DEBOBS(3)); + omap_ctrl_writel(control_context.debobs_4, OMAP343X_CONTROL_DEBOBS(4)); + omap_ctrl_writel(control_context.debobs_5, OMAP343X_CONTROL_DEBOBS(5)); + omap_ctrl_writel(control_context.debobs_6, OMAP343X_CONTROL_DEBOBS(6)); + omap_ctrl_writel(control_context.debobs_7, OMAP343X_CONTROL_DEBOBS(7)); + omap_ctrl_writel(control_context.debobs_8, OMAP343X_CONTROL_DEBOBS(8)); + omap_ctrl_writel(control_context.prog_io0, OMAP343X_CONTROL_PROG_IO0); + omap_ctrl_writel(control_context.prog_io1, OMAP343X_CONTROL_PROG_IO1); + omap_ctrl_writel(control_context.dss_dpll_spreading, + OMAP343X_CONTROL_DSS_DPLL_SPREADING); + omap_ctrl_writel(control_context.core_dpll_spreading, + OMAP343X_CONTROL_CORE_DPLL_SPREADING); + omap_ctrl_writel(control_context.per_dpll_spreading, + OMAP343X_CONTROL_PER_DPLL_SPREADING); + omap_ctrl_writel(control_context.usbhost_dpll_spreading, + OMAP343X_CONTROL_USBHOST_DPLL_SPREADING); + omap_ctrl_writel(control_context.pbias_lite, + OMAP343X_CONTROL_PBIAS_LITE); + omap_ctrl_writel(control_context.temp_sensor, + OMAP343X_CONTROL_TEMP_SENSOR); + omap_ctrl_writel(control_context.sramldo4, OMAP343X_CONTROL_SRAMLDO4); + omap_ctrl_writel(control_context.sramldo5, OMAP343X_CONTROL_SRAMLDO5); + omap_ctrl_writel(control_context.csi, OMAP343X_CONTROL_CSI); + omap_ctrl_writel(control_context.padconf_sys_nirq, + OMAP343X_CONTROL_PADCONF_SYSNIRQ); +} + +void omap3630_ctrl_disable_rta(void) +{ + if (!cpu_is_omap3630()) + return; + omap_ctrl_writel(OMAP36XX_RTA_DISABLE, OMAP36XX_CONTROL_MEM_RTA_CTRL); +} + +/** + * omap3_ctrl_save_padconf - save padconf registers to scratchpad RAM + * + * Tell the SCM to start saving the padconf registers, then wait for + * the process to complete. Returns 0 unconditionally, although it + * should also eventually be able to return -ETIMEDOUT, if the save + * does not complete. + * + * XXX This function is missing a timeout. What should it be? + */ +int omap3_ctrl_save_padconf(void) +{ + u32 cpo; + + /* Save the padconf registers */ + cpo = omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_OFF); + cpo |= START_PADCONF_SAVE; + omap_ctrl_writel(cpo, OMAP343X_CONTROL_PADCONF_OFF); + + /* wait for the save to complete */ + while (!(omap_ctrl_readl(OMAP343X_CONTROL_GENERAL_PURPOSE_STATUS) + & PADCONF_SAVE_DONE)) + udelay(1); + + return 0; +} + +/** + * omap3_ctrl_set_iva_bootmode_idle - sets the IVA2 bootmode to idle + * + * Sets the bootmode for IVA2 to idle. This is needed by the PM code to + * force disable IVA2 so that it does not prevent any low-power states. + */ +static void __init omap3_ctrl_set_iva_bootmode_idle(void) +{ + omap_ctrl_writel(OMAP3_IVA2_BOOTMOD_IDLE, + OMAP343X_CONTROL_IVA2_BOOTMOD); +} + +/** + * omap3_ctrl_setup_d2d_padconf - setup stacked modem pads for idle + * + * Sets up the pads controlling the stacked modem in such way that the + * device can enter idle. + */ +static void __init omap3_ctrl_setup_d2d_padconf(void) +{ + u16 mask, padconf; + + /* + * In a stand alone OMAP3430 where there is not a stacked + * modem for the D2D Idle Ack and D2D MStandby must be pulled + * high. S CONTROL_PADCONF_SAD2D_IDLEACK and + * CONTROL_PADCONF_SAD2D_MSTDBY to have a pull up. + */ + mask = (1 << 4) | (1 << 3); /* pull-up, enabled */ + padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_MSTANDBY); + padconf |= mask; + omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_MSTANDBY); + + padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_IDLEACK); + padconf |= mask; + omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK); +} + +/** + * omap3_ctrl_init - does static initializations for control module + * + * Initializes system control module. This sets up the sysconfig autoidle, + * and sets up modem and iva2 so that they can be idled properly. + */ +void __init omap3_ctrl_init(void) +{ + omap_ctrl_writel(OMAP3430_AUTOIDLE_MASK, OMAP2_CONTROL_SYSCONFIG); + + omap3_ctrl_set_iva_bootmode_idle(); + + omap3_ctrl_setup_d2d_padconf(); +} +#endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */ + +static unsigned long am43xx_control_reg_offsets[] = { + AM33XX_CONTROL_SYSCONFIG_OFFSET, + AM33XX_CONTROL_STATUS_OFFSET, + AM43XX_CONTROL_MPU_L2_CTRL_OFFSET, + AM33XX_CONTROL_CORE_SLDO_CTRL_OFFSET, + AM33XX_CONTROL_MPU_SLDO_CTRL_OFFSET, + AM33XX_CONTROL_CLK32KDIVRATIO_CTRL_OFFSET, + AM33XX_CONTROL_BANDGAP_CTRL_OFFSET, + AM33XX_CONTROL_BANDGAP_TRIM_OFFSET, + AM33XX_CONTROL_PLL_CLKINPULOW_CTRL_OFFSET, + AM33XX_CONTROL_MOSC_CTRL_OFFSET, + AM33XX_CONTROL_DEEPSLEEP_CTRL_OFFSET, + AM43XX_CONTROL_DISPLAY_PLL_SEL_OFFSET, + AM33XX_CONTROL_INIT_PRIORITY_0_OFFSET, + AM33XX_CONTROL_INIT_PRIORITY_1_OFFSET, + AM33XX_CONTROL_TPTC_CFG_OFFSET, + AM33XX_CONTROL_USB_CTRL0_OFFSET, + AM33XX_CONTROL_USB_CTRL1_OFFSET, + AM43XX_CONTROL_USB_CTRL2_OFFSET, + AM43XX_CONTROL_GMII_SEL_OFFSET, + AM43XX_CONTROL_MPUSS_CTRL_OFFSET, + AM43XX_CONTROL_TIMER_CASCADE_CTRL_OFFSET, + AM43XX_CONTROL_PWMSS_CTRL_OFFSET, + AM33XX_CONTROL_MREQPRIO_0_OFFSET, + AM33XX_CONTROL_MREQPRIO_1_OFFSET, + AM33XX_CONTROL_HW_EVENT_SEL_GRP1_OFFSET, + AM33XX_CONTROL_HW_EVENT_SEL_GRP2_OFFSET, + AM33XX_CONTROL_HW_EVENT_SEL_GRP3_OFFSET, + AM33XX_CONTROL_HW_EVENT_SEL_GRP4_OFFSET, + AM33XX_CONTROL_SMRT_CTRL_OFFSET, + AM33XX_CONTROL_MPUSS_HW_DEBUG_SEL_OFFSET, + AM43XX_CONTROL_CQDETECT_STS_OFFSET, + AM43XX_CONTROL_CQDETECT_STS2_OFFSET, + AM43XX_CONTROL_VTP_CTRL_OFFSET, + AM33XX_CONTROL_VREF_CTRL_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_0_3_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_4_7_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_8_11_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_12_15_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_16_19_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_20_23_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_24_27_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_28_31_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_32_35_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_36_39_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_40_43_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_44_47_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_48_51_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_52_55_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_56_59_OFFSET, + AM33XX_CONTROL_TPCC_EVT_MUX_60_63_OFFSET, + AM33XX_CONTROL_TIMER_EVT_CAPT_OFFSET, + AM33XX_CONTROL_ECAP_EVT_CAPT_OFFSET, + AM33XX_CONTROL_ADC_EVT_CAPT_OFFSET, + AM43XX_CONTROL_ADC1_EVT_CAPT_OFFSET, + AM33XX_CONTROL_RESET_ISO_OFFSET, +}; + +static u32 am33xx_control_vals[ARRAY_SIZE(am43xx_control_reg_offsets)]; + +/** + * am43xx_control_save_context - Save the wakeup domain registers + * + * Save the wkup domain registers + */ +static void am43xx_control_save_context(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(am43xx_control_reg_offsets); i++) + am33xx_control_vals[i] = + omap_ctrl_readl(am43xx_control_reg_offsets[i]); +} + +/** + * am43xx_control_restore_context - Restore the wakeup domain registers + * + * Restore the wkup domain registers + */ +static void am43xx_control_restore_context(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(am43xx_control_reg_offsets); i++) + omap_ctrl_writel(am33xx_control_vals[i], + am43xx_control_reg_offsets[i]); +} + +static int cpu_notifier(struct notifier_block *nb, unsigned long cmd, void *v) +{ + switch (cmd) { + case CPU_CLUSTER_PM_ENTER: + if (enable_off_mode) + am43xx_control_save_context(); + break; + case CPU_CLUSTER_PM_EXIT: + if (enable_off_mode) + am43xx_control_restore_context(); + break; + } + + return NOTIFY_OK; +} + +struct control_init_data { + int index; + void __iomem *mem; + s16 offset; +}; + +static struct control_init_data ctrl_data = { + .index = TI_CLKM_CTRL, +}; + +static const struct control_init_data omap2_ctrl_data = { + .index = TI_CLKM_CTRL, + .offset = -OMAP2_CONTROL_GENERAL, +}; + +static const struct control_init_data ctrl_aux_data = { + .index = TI_CLKM_CTRL_AUX, +}; + +static const struct of_device_id omap_scrm_dt_match_table[] = { + { .compatible = "ti,am3-scm", .data = &ctrl_data }, + { .compatible = "ti,am4-scm", .data = &ctrl_data }, + { .compatible = "ti,omap2-scm", .data = &omap2_ctrl_data }, + { .compatible = "ti,omap3-scm", .data = &omap2_ctrl_data }, + { .compatible = "ti,dm814-scm", .data = &ctrl_data }, + { .compatible = "ti,dm816-scrm", .data = &ctrl_data }, + { .compatible = "ti,omap4-scm-core", .data = &ctrl_data }, + { .compatible = "ti,omap5-scm-core", .data = &ctrl_data }, + { .compatible = "ti,omap5-scm-wkup-pad-conf", .data = &ctrl_aux_data }, + { .compatible = "ti,dra7-scm-core", .data = &ctrl_data }, + { } +}; + +/** + * omap2_control_base_init - initialize iomappings for the control driver + * + * Detects and initializes the iomappings for the control driver, based + * on the DT data. Returns 0 in success, negative error value + * otherwise. + */ +int __init omap2_control_base_init(void) +{ + struct device_node *np; + const struct of_device_id *match; + struct control_init_data *data; + void __iomem *mem; + + for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) { + data = (struct control_init_data *)match->data; + + mem = of_iomap(np, 0); + if (!mem) { + of_node_put(np); + return -ENOMEM; + } + + if (data->index == TI_CLKM_CTRL) { + omap2_ctrl_base = mem; + omap2_ctrl_offset = data->offset; + } + + data->mem = mem; + } + + return 0; +} + +/** + * omap_control_init - low level init for the control driver + * + * Initializes the low level clock infrastructure for control driver. + * Returns 0 in success, negative error value in failure. + */ +int __init omap_control_init(void) +{ + struct device_node *np, *scm_conf, *clocks_node; + const struct of_device_id *match; + const struct omap_prcm_init_data *data; + int ret; + struct regmap *syscon; + static struct notifier_block nb; + + for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) { + data = match->data; + + /* + * Check if we have scm_conf node, if yes, use this to + * access clock registers. + */ + scm_conf = of_get_child_by_name(np, "scm_conf"); + + if (scm_conf) { + syscon = syscon_node_to_regmap(scm_conf); + + if (IS_ERR(syscon)) { + ret = PTR_ERR(syscon); + goto err_put_scm_conf; + } + + clocks_node = of_get_child_by_name(scm_conf, "clocks"); + if (clocks_node) { + of_node_put(clocks_node); + ret = omap2_clk_provider_init(scm_conf, + data->index, + syscon, NULL); + if (ret) + goto err_put_scm_conf; + } + of_node_put(scm_conf); + } else { + /* No scm_conf found, direct access */ + ret = omap2_clk_provider_init(np, data->index, NULL, + data->mem); + if (ret) + goto of_node_put; + } + } + + /* Only AM43XX can lose ctrl registers context during rtc-ddr suspend */ + if (soc_is_am43xx()) { + nb.notifier_call = cpu_notifier; + cpu_pm_register_notifier(&nb); + } + + return 0; + +err_put_scm_conf: + if (scm_conf) + of_node_put(scm_conf); +of_node_put: + of_node_put(np); + return ret; + +} diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h new file mode 100644 index 000000000..7e7440533 --- /dev/null +++ b/arch/arm/mach-omap2/control.h @@ -0,0 +1,540 @@ +/* + * arch/arm/mach-omap2/control.h + * + * OMAP2/3/4 System Control Module definitions + * + * Copyright (C) 2007-2010 Texas Instruments, Inc. + * Copyright (C) 2007-2008, 2010 Nokia Corporation + * + * Written by Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CONTROL_H +#define __ARCH_ARM_MACH_OMAP2_CONTROL_H + +#include "am33xx.h" + +#ifndef __ASSEMBLY__ +#define OMAP242X_CTRL_REGADDR(reg) \ + OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE + (reg)) +#define OMAP243X_CTRL_REGADDR(reg) \ + OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE + (reg)) +#define OMAP343X_CTRL_REGADDR(reg) \ + OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE + (reg)) +#define AM33XX_CTRL_REGADDR(reg) \ + AM33XX_L4_WK_IO_ADDRESS(AM33XX_SCM_BASE + (reg)) +#else +#define OMAP242X_CTRL_REGADDR(reg) \ + OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE + (reg)) +#define OMAP243X_CTRL_REGADDR(reg) \ + OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE + (reg)) +#define OMAP343X_CTRL_REGADDR(reg) \ + OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE + (reg)) +#define AM33XX_CTRL_REGADDR(reg) \ + AM33XX_L4_WK_IO_ADDRESS(AM33XX_SCM_BASE + (reg)) +#endif /* __ASSEMBLY__ */ + +/* + * As elsewhere, the "OMAP2_" prefix indicates that the macro is valid for + * OMAP24XX and OMAP34XX. + */ + +/* Control submodule offsets */ + +#define OMAP2_CONTROL_INTERFACE 0x000 +#define OMAP2_CONTROL_PADCONFS 0x030 +#define OMAP2_CONTROL_GENERAL 0x270 +#define OMAP343X_CONTROL_MEM_WKUP 0x600 +#define OMAP343X_CONTROL_PADCONFS_WKUP 0xa00 +#define OMAP343X_CONTROL_GENERAL_WKUP 0xa60 + +/* TI81XX spefic control submodules */ +#define TI81XX_CONTROL_DEVBOOT 0x040 +#define TI81XX_CONTROL_DEVCONF 0x600 + +/* Control register offsets - read/write with omap_ctrl_{read,write}{bwl}() */ + +#define OMAP2_CONTROL_SYSCONFIG (OMAP2_CONTROL_INTERFACE + 0x10) + +/* CONTROL_GENERAL register offsets common to OMAP2 & 3 */ +#define OMAP2_CONTROL_DEVCONF0 (OMAP2_CONTROL_GENERAL + 0x0004) +#define OMAP2_CONTROL_MSUSPENDMUX_0 (OMAP2_CONTROL_GENERAL + 0x0020) +#define OMAP2_CONTROL_MSUSPENDMUX_1 (OMAP2_CONTROL_GENERAL + 0x0024) +#define OMAP2_CONTROL_MSUSPENDMUX_2 (OMAP2_CONTROL_GENERAL + 0x0028) +#define OMAP2_CONTROL_MSUSPENDMUX_3 (OMAP2_CONTROL_GENERAL + 0x002c) +#define OMAP2_CONTROL_MSUSPENDMUX_4 (OMAP2_CONTROL_GENERAL + 0x0030) +#define OMAP2_CONTROL_MSUSPENDMUX_5 (OMAP2_CONTROL_GENERAL + 0x0034) +#define OMAP2_CONTROL_SEC_CTRL (OMAP2_CONTROL_GENERAL + 0x0040) +#define OMAP2_CONTROL_RPUB_KEY_H_0 (OMAP2_CONTROL_GENERAL + 0x0090) +#define OMAP2_CONTROL_RPUB_KEY_H_1 (OMAP2_CONTROL_GENERAL + 0x0094) +#define OMAP2_CONTROL_RPUB_KEY_H_2 (OMAP2_CONTROL_GENERAL + 0x0098) +#define OMAP2_CONTROL_RPUB_KEY_H_3 (OMAP2_CONTROL_GENERAL + 0x009c) + +/* 242x-only CONTROL_GENERAL register offsets */ +#define OMAP242X_CONTROL_DEVCONF OMAP2_CONTROL_DEVCONF0 /* match TRM */ +#define OMAP242X_CONTROL_OCM_RAM_PERM (OMAP2_CONTROL_GENERAL + 0x0068) + +/* 243x-only CONTROL_GENERAL register offsets */ +/* CONTROL_IVA2_BOOT{ADDR,MOD} are at the same place on 343x - noted below */ +#define OMAP243X_CONTROL_DEVCONF1 (OMAP2_CONTROL_GENERAL + 0x0078) +#define OMAP243X_CONTROL_CSIRXFE (OMAP2_CONTROL_GENERAL + 0x007c) +#define OMAP243X_CONTROL_IVA2_BOOTADDR (OMAP2_CONTROL_GENERAL + 0x0190) +#define OMAP243X_CONTROL_IVA2_BOOTMOD (OMAP2_CONTROL_GENERAL + 0x0194) +#define OMAP243X_CONTROL_IVA2_GEMCFG (OMAP2_CONTROL_GENERAL + 0x0198) +#define OMAP243X_CONTROL_PBIAS_LITE (OMAP2_CONTROL_GENERAL + 0x0230) + +/* 24xx-only CONTROL_GENERAL register offsets */ +#define OMAP24XX_CONTROL_DEBOBS (OMAP2_CONTROL_GENERAL + 0x0000) +#define OMAP24XX_CONTROL_EMU_SUPPORT (OMAP2_CONTROL_GENERAL + 0x0008) +#define OMAP24XX_CONTROL_SEC_TEST (OMAP2_CONTROL_GENERAL + 0x0044) +#define OMAP24XX_CONTROL_PSA_CTRL (OMAP2_CONTROL_GENERAL + 0x0048) +#define OMAP24XX_CONTROL_PSA_CMD (OMAP2_CONTROL_GENERAL + 0x004c) +#define OMAP24XX_CONTROL_PSA_VALUE (OMAP2_CONTROL_GENERAL + 0x0050) +#define OMAP24XX_CONTROL_SEC_EMU (OMAP2_CONTROL_GENERAL + 0x0060) +#define OMAP24XX_CONTROL_SEC_TAP (OMAP2_CONTROL_GENERAL + 0x0064) +#define OMAP24XX_CONTROL_OCM_PUB_RAM_ADD (OMAP2_CONTROL_GENERAL + 0x006c) +#define OMAP24XX_CONTROL_EXT_SEC_RAM_START_ADD (OMAP2_CONTROL_GENERAL + 0x0070) +#define OMAP24XX_CONTROL_EXT_SEC_RAM_STOP_ADD (OMAP2_CONTROL_GENERAL + 0x0074) +#define OMAP24XX_CONTROL_SEC_STATUS (OMAP2_CONTROL_GENERAL + 0x0080) +#define OMAP24XX_CONTROL_SEC_ERR_STATUS (OMAP2_CONTROL_GENERAL + 0x0084) +#define OMAP24XX_CONTROL_STATUS (OMAP2_CONTROL_GENERAL + 0x0088) +#define OMAP24XX_CONTROL_GENERAL_PURPOSE_STATUS (OMAP2_CONTROL_GENERAL + 0x008c) +#define OMAP24XX_CONTROL_RAND_KEY_0 (OMAP2_CONTROL_GENERAL + 0x00a0) +#define OMAP24XX_CONTROL_RAND_KEY_1 (OMAP2_CONTROL_GENERAL + 0x00a4) +#define OMAP24XX_CONTROL_RAND_KEY_2 (OMAP2_CONTROL_GENERAL + 0x00a8) +#define OMAP24XX_CONTROL_RAND_KEY_3 (OMAP2_CONTROL_GENERAL + 0x00ac) +#define OMAP24XX_CONTROL_CUST_KEY_0 (OMAP2_CONTROL_GENERAL + 0x00b0) +#define OMAP24XX_CONTROL_CUST_KEY_1 (OMAP2_CONTROL_GENERAL + 0x00b4) +#define OMAP24XX_CONTROL_TEST_KEY_0 (OMAP2_CONTROL_GENERAL + 0x00c0) +#define OMAP24XX_CONTROL_TEST_KEY_1 (OMAP2_CONTROL_GENERAL + 0x00c4) +#define OMAP24XX_CONTROL_TEST_KEY_2 (OMAP2_CONTROL_GENERAL + 0x00c8) +#define OMAP24XX_CONTROL_TEST_KEY_3 (OMAP2_CONTROL_GENERAL + 0x00cc) +#define OMAP24XX_CONTROL_TEST_KEY_4 (OMAP2_CONTROL_GENERAL + 0x00d0) +#define OMAP24XX_CONTROL_TEST_KEY_5 (OMAP2_CONTROL_GENERAL + 0x00d4) +#define OMAP24XX_CONTROL_TEST_KEY_6 (OMAP2_CONTROL_GENERAL + 0x00d8) +#define OMAP24XX_CONTROL_TEST_KEY_7 (OMAP2_CONTROL_GENERAL + 0x00dc) +#define OMAP24XX_CONTROL_TEST_KEY_8 (OMAP2_CONTROL_GENERAL + 0x00e0) +#define OMAP24XX_CONTROL_TEST_KEY_9 (OMAP2_CONTROL_GENERAL + 0x00e4) + +#define OMAP343X_CONTROL_PADCONF_SYSNIRQ (OMAP2_CONTROL_INTERFACE + 0x01b0) + +/* 34xx-only CONTROL_GENERAL register offsets */ +#define OMAP343X_CONTROL_PADCONF_OFF (OMAP2_CONTROL_GENERAL + 0x0000) +#define OMAP343X_CONTROL_MEM_DFTRW0 (OMAP2_CONTROL_GENERAL + 0x0008) +#define OMAP343X_CONTROL_MEM_DFTRW1 (OMAP2_CONTROL_GENERAL + 0x000c) +#define OMAP343X_CONTROL_DEVCONF1 (OMAP2_CONTROL_GENERAL + 0x0068) +#define OMAP343X_CONTROL_CSIRXFE (OMAP2_CONTROL_GENERAL + 0x006c) +#define OMAP343X_CONTROL_SEC_STATUS (OMAP2_CONTROL_GENERAL + 0x0070) +#define OMAP343X_CONTROL_SEC_ERR_STATUS (OMAP2_CONTROL_GENERAL + 0x0074) +#define OMAP343X_CONTROL_SEC_ERR_STATUS_DEBUG (OMAP2_CONTROL_GENERAL + 0x0078) +#define OMAP343X_CONTROL_STATUS (OMAP2_CONTROL_GENERAL + 0x0080) +#define OMAP343X_CONTROL_GENERAL_PURPOSE_STATUS (OMAP2_CONTROL_GENERAL + 0x0084) +#define OMAP343X_CONTROL_RPUB_KEY_H_4 (OMAP2_CONTROL_GENERAL + 0x00a0) +#define OMAP343X_CONTROL_RAND_KEY_0 (OMAP2_CONTROL_GENERAL + 0x00a8) +#define OMAP343X_CONTROL_RAND_KEY_1 (OMAP2_CONTROL_GENERAL + 0x00ac) +#define OMAP343X_CONTROL_RAND_KEY_2 (OMAP2_CONTROL_GENERAL + 0x00b0) +#define OMAP343X_CONTROL_RAND_KEY_3 (OMAP2_CONTROL_GENERAL + 0x00b4) +#define OMAP343X_CONTROL_TEST_KEY_0 (OMAP2_CONTROL_GENERAL + 0x00c8) +#define OMAP343X_CONTROL_TEST_KEY_1 (OMAP2_CONTROL_GENERAL + 0x00cc) +#define OMAP343X_CONTROL_TEST_KEY_2 (OMAP2_CONTROL_GENERAL + 0x00d0) +#define OMAP343X_CONTROL_TEST_KEY_3 (OMAP2_CONTROL_GENERAL + 0x00d4) +#define OMAP343X_CONTROL_TEST_KEY_4 (OMAP2_CONTROL_GENERAL + 0x00d8) +#define OMAP343X_CONTROL_TEST_KEY_5 (OMAP2_CONTROL_GENERAL + 0x00dc) +#define OMAP343X_CONTROL_TEST_KEY_6 (OMAP2_CONTROL_GENERAL + 0x00e0) +#define OMAP343X_CONTROL_TEST_KEY_7 (OMAP2_CONTROL_GENERAL + 0x00e4) +#define OMAP343X_CONTROL_TEST_KEY_8 (OMAP2_CONTROL_GENERAL + 0x00e8) +#define OMAP343X_CONTROL_TEST_KEY_9 (OMAP2_CONTROL_GENERAL + 0x00ec) +#define OMAP343X_CONTROL_TEST_KEY_10 (OMAP2_CONTROL_GENERAL + 0x00f0) +#define OMAP343X_CONTROL_TEST_KEY_11 (OMAP2_CONTROL_GENERAL + 0x00f4) +#define OMAP343X_CONTROL_TEST_KEY_12 (OMAP2_CONTROL_GENERAL + 0x00f8) +#define OMAP343X_CONTROL_TEST_KEY_13 (OMAP2_CONTROL_GENERAL + 0x00fc) +#define OMAP343X_CONTROL_FUSE_OPP1_VDD1 (OMAP2_CONTROL_GENERAL + 0x0110) +#define OMAP343X_CONTROL_FUSE_OPP2_VDD1 (OMAP2_CONTROL_GENERAL + 0x0114) +#define OMAP343X_CONTROL_FUSE_OPP3_VDD1 (OMAP2_CONTROL_GENERAL + 0x0118) +#define OMAP343X_CONTROL_FUSE_OPP4_VDD1 (OMAP2_CONTROL_GENERAL + 0x011c) +#define OMAP343X_CONTROL_FUSE_OPP5_VDD1 (OMAP2_CONTROL_GENERAL + 0x0120) +#define OMAP343X_CONTROL_FUSE_OPP1_VDD2 (OMAP2_CONTROL_GENERAL + 0x0124) +#define OMAP343X_CONTROL_FUSE_OPP2_VDD2 (OMAP2_CONTROL_GENERAL + 0x0128) +#define OMAP343X_CONTROL_FUSE_OPP3_VDD2 (OMAP2_CONTROL_GENERAL + 0x012c) +#define OMAP343X_CONTROL_FUSE_SR (OMAP2_CONTROL_GENERAL + 0x0130) +#define OMAP343X_CONTROL_IVA2_BOOTADDR (OMAP2_CONTROL_GENERAL + 0x0190) +#define OMAP343X_CONTROL_IVA2_BOOTMOD (OMAP2_CONTROL_GENERAL + 0x0194) +#define OMAP343X_CONTROL_DEBOBS(i) (OMAP2_CONTROL_GENERAL + 0x01B0 \ + + ((i) >> 1) * 4 + (!((i) & 1)) * 2) +#define OMAP343X_CONTROL_PROG_IO0 (OMAP2_CONTROL_GENERAL + 0x01D4) +#define OMAP343X_CONTROL_PROG_IO1 (OMAP2_CONTROL_GENERAL + 0x01D8) +#define OMAP343X_CONTROL_DSS_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01E0) +#define OMAP343X_CONTROL_CORE_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01E4) +#define OMAP343X_CONTROL_PER_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01E8) +#define OMAP343X_CONTROL_USBHOST_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01EC) +#define OMAP343X_CONTROL_PBIAS_LITE (OMAP2_CONTROL_GENERAL + 0x02B0) +#define OMAP343X_CONTROL_TEMP_SENSOR (OMAP2_CONTROL_GENERAL + 0x02B4) +#define OMAP343X_CONTROL_SRAMLDO4 (OMAP2_CONTROL_GENERAL + 0x02B8) +#define OMAP343X_CONTROL_SRAMLDO5 (OMAP2_CONTROL_GENERAL + 0x02C0) +#define OMAP343X_CONTROL_CSI (OMAP2_CONTROL_GENERAL + 0x02C4) + +/* OMAP3630 only CONTROL_GENERAL register offsets */ +#define OMAP3630_CONTROL_FUSE_OPP1G_VDD1 (OMAP2_CONTROL_GENERAL + 0x0110) +#define OMAP3630_CONTROL_FUSE_OPP50_VDD1 (OMAP2_CONTROL_GENERAL + 0x0114) +#define OMAP3630_CONTROL_FUSE_OPP100_VDD1 (OMAP2_CONTROL_GENERAL + 0x0118) +#define OMAP3630_CONTROL_FUSE_OPP120_VDD1 (OMAP2_CONTROL_GENERAL + 0x0120) +#define OMAP3630_CONTROL_FUSE_OPP50_VDD2 (OMAP2_CONTROL_GENERAL + 0x0128) +#define OMAP3630_CONTROL_FUSE_OPP100_VDD2 (OMAP2_CONTROL_GENERAL + 0x012C) +#define OMAP3630_CONTROL_CAMERA_PHY_CTRL (OMAP2_CONTROL_GENERAL + 0x02f0) + +/* OMAP44xx control efuse offsets */ +#define OMAP44XX_CONTROL_FUSE_IVA_OPP50 0x22C +#define OMAP44XX_CONTROL_FUSE_IVA_OPP100 0x22F +#define OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO 0x232 +#define OMAP44XX_CONTROL_FUSE_IVA_OPPNITRO 0x235 +#define OMAP44XX_CONTROL_FUSE_MPU_OPP50 0x240 +#define OMAP44XX_CONTROL_FUSE_MPU_OPP100 0x243 +#define OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO 0x246 +#define OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO 0x249 +#define OMAP44XX_CONTROL_FUSE_MPU_OPPNITROSB 0x24C +#define OMAP44XX_CONTROL_FUSE_CORE_OPP50 0x254 +#define OMAP44XX_CONTROL_FUSE_CORE_OPP100 0x257 +#define OMAP44XX_CONTROL_FUSE_CORE_OPP100OV 0x25A + +/* AM35XX only CONTROL_GENERAL register offsets */ +#define AM35XX_CONTROL_MSUSPENDMUX_6 (OMAP2_CONTROL_GENERAL + 0x0038) +#define AM35XX_CONTROL_DEVCONF2 (OMAP2_CONTROL_GENERAL + 0x0310) +#define AM35XX_CONTROL_DEVCONF3 (OMAP2_CONTROL_GENERAL + 0x0314) +#define AM35XX_CONTROL_CBA_PRIORITY (OMAP2_CONTROL_GENERAL + 0x0320) +#define AM35XX_CONTROL_LVL_INTR_CLEAR (OMAP2_CONTROL_GENERAL + 0x0324) +#define AM35XX_CONTROL_IP_SW_RESET (OMAP2_CONTROL_GENERAL + 0x0328) +#define AM35XX_CONTROL_IPSS_CLK_CTRL (OMAP2_CONTROL_GENERAL + 0x032C) + +/* 34xx PADCONF register offsets */ +#define OMAP343X_PADCONF_ETK(i) (OMAP2_CONTROL_PADCONFS + 0x5a8 + \ + (i)*2) +#define OMAP343X_PADCONF_ETK_CLK OMAP343X_PADCONF_ETK(0) +#define OMAP343X_PADCONF_ETK_CTL OMAP343X_PADCONF_ETK(1) +#define OMAP343X_PADCONF_ETK_D0 OMAP343X_PADCONF_ETK(2) +#define OMAP343X_PADCONF_ETK_D1 OMAP343X_PADCONF_ETK(3) +#define OMAP343X_PADCONF_ETK_D2 OMAP343X_PADCONF_ETK(4) +#define OMAP343X_PADCONF_ETK_D3 OMAP343X_PADCONF_ETK(5) +#define OMAP343X_PADCONF_ETK_D4 OMAP343X_PADCONF_ETK(6) +#define OMAP343X_PADCONF_ETK_D5 OMAP343X_PADCONF_ETK(7) +#define OMAP343X_PADCONF_ETK_D6 OMAP343X_PADCONF_ETK(8) +#define OMAP343X_PADCONF_ETK_D7 OMAP343X_PADCONF_ETK(9) +#define OMAP343X_PADCONF_ETK_D8 OMAP343X_PADCONF_ETK(10) +#define OMAP343X_PADCONF_ETK_D9 OMAP343X_PADCONF_ETK(11) +#define OMAP343X_PADCONF_ETK_D10 OMAP343X_PADCONF_ETK(12) +#define OMAP343X_PADCONF_ETK_D11 OMAP343X_PADCONF_ETK(13) +#define OMAP343X_PADCONF_ETK_D12 OMAP343X_PADCONF_ETK(14) +#define OMAP343X_PADCONF_ETK_D13 OMAP343X_PADCONF_ETK(15) +#define OMAP343X_PADCONF_ETK_D14 OMAP343X_PADCONF_ETK(16) +#define OMAP343X_PADCONF_ETK_D15 OMAP343X_PADCONF_ETK(17) + +/* 34xx GENERAL_WKUP register offsets */ +#define OMAP34XX_CONTROL_WKUP_CTRL (OMAP343X_CONTROL_GENERAL_WKUP - 0x4) +#define OMAP36XX_GPIO_IO_PWRDNZ BIT(6) + +#define OMAP343X_CONTROL_WKUP_DEBOBSMUX(i) (OMAP343X_CONTROL_GENERAL_WKUP + \ + 0x008 + (i)) +#define OMAP343X_CONTROL_WKUP_DEBOBS0 (OMAP343X_CONTROL_GENERAL_WKUP + 0x008) +#define OMAP343X_CONTROL_WKUP_DEBOBS1 (OMAP343X_CONTROL_GENERAL_WKUP + 0x00C) +#define OMAP343X_CONTROL_WKUP_DEBOBS2 (OMAP343X_CONTROL_GENERAL_WKUP + 0x010) +#define OMAP343X_CONTROL_WKUP_DEBOBS3 (OMAP343X_CONTROL_GENERAL_WKUP + 0x014) +#define OMAP343X_CONTROL_WKUP_DEBOBS4 (OMAP343X_CONTROL_GENERAL_WKUP + 0x018) + +/* 36xx-only RTA - Retention till Access control registers and bits */ +#define OMAP36XX_CONTROL_MEM_RTA_CTRL 0x40C +#define OMAP36XX_RTA_DISABLE 0x0 + +/* 34xx D2D idle-related pins, handled by PM core */ +#define OMAP3_PADCONF_SAD2D_MSTANDBY 0x250 +#define OMAP3_PADCONF_SAD2D_IDLEACK 0x254 + +/* TI81XX CONTROL_DEVBOOT register offsets */ +#define TI81XX_CONTROL_STATUS (TI81XX_CONTROL_DEVBOOT + 0x000) + +/* TI81XX CONTROL_DEVCONF register offsets */ +#define TI81XX_CONTROL_DEVICE_ID (TI81XX_CONTROL_DEVCONF + 0x000) + +/* OMAP4 CONTROL MODULE */ +#define OMAP4_CTRL_MODULE_PAD_WKUP 0x4a31e000 +#define OMAP4_CTRL_MODULE_PAD_WKUP_CONTROL_I2C_2 0x0604 +#define OMAP4_CTRL_MODULE_CORE_STATUS 0x02c4 +#define OMAP4_CTRL_MODULE_CORE_STD_FUSE_PROD_ID_1 0x0218 +#define OMAP4_CTRL_MODULE_CORE_DSP_BOOTADDR 0x0304 +#define OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY 0x0618 +#define OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_CAMERA_RX 0x0608 + +/* OMAP4 CONTROL_DSIPHY */ +#define OMAP4_DSI2_LANEENABLE_SHIFT 29 +#define OMAP4_DSI2_LANEENABLE_MASK (0x7 << 29) +#define OMAP4_DSI1_LANEENABLE_SHIFT 24 +#define OMAP4_DSI1_LANEENABLE_MASK (0x1f << 24) +#define OMAP4_DSI1_PIPD_SHIFT 19 +#define OMAP4_DSI1_PIPD_MASK (0x1f << 19) +#define OMAP4_DSI2_PIPD_SHIFT 14 +#define OMAP4_DSI2_PIPD_MASK (0x1f << 14) + +/* OMAP4 CONTROL_CAMERA_RX */ +#define OMAP4_CAMERARX_CSI21_LANEENABLE_SHIFT 24 +#define OMAP4_CAMERARX_CSI21_LANEENABLE_MASK (0x1f << 24) +#define OMAP4_CAMERARX_CSI22_LANEENABLE_SHIFT 29 +#define OMAP4_CAMERARX_CSI22_LANEENABLE_MASK (0x3 << 29) +#define OMAP4_CAMERARX_CSI22_CTRLCLKEN_SHIFT 21 +#define OMAP4_CAMERARX_CSI22_CTRLCLKEN_MASK (1 << 21) +#define OMAP4_CAMERARX_CSI22_CAMMODE_SHIFT 19 +#define OMAP4_CAMERARX_CSI22_CAMMODE_MASK (0x3 << 19) +#define OMAP4_CAMERARX_CSI21_CTRLCLKEN_SHIFT 18 +#define OMAP4_CAMERARX_CSI21_CTRLCLKEN_MASK (1 << 18) +#define OMAP4_CAMERARX_CSI21_CAMMODE_SHIFT 16 +#define OMAP4_CAMERARX_CSI21_CAMMODE_MASK (0x3 << 16) + +/* OMAP54XX CONTROL STATUS register */ +#define OMAP5XXX_CONTROL_STATUS 0x134 +#define OMAP5_DEVICETYPE_MASK (0x7 << 6) + +/* DRA7XX CONTROL CORE BOOTSTRAP */ +#define DRA7_CTRL_CORE_BOOTSTRAP 0x6c4 +#define DRA7_SPEEDSELECT_MASK (0x3 << 8) + +/* + * REVISIT: This list of registers is not comprehensive - there are more + * that should be added. + */ + +/* + * Control module register bit defines - these should eventually go into + * their own regbits file. Some of these will be complicated, depending + * on the device type (general-purpose, emulator, test, secure, bad, other) + * and the security mode (secure, non-secure, don't care) + */ +/* CONTROL_DEVCONF0 bits */ +#define OMAP2_MMCSDIO1ADPCLKISEL (1 << 24) /* MMC1 loop back clock */ +#define OMAP24XX_USBSTANDBYCTRL (1 << 15) +#define OMAP2_MCBSP2_CLKS_MASK (1 << 6) +#define OMAP2_MCBSP1_FSR_MASK (1 << 4) +#define OMAP2_MCBSP1_CLKR_MASK (1 << 3) +#define OMAP2_MCBSP1_CLKS_MASK (1 << 2) + +/* CONTROL_DEVCONF1 bits */ +#define OMAP243X_MMC1_ACTIVE_OVERWRITE (1 << 31) +#define OMAP2_MMCSDIO2ADPCLKISEL (1 << 6) /* MMC2 loop back clock */ +#define OMAP2_MCBSP5_CLKS_MASK (1 << 4) /* > 242x */ +#define OMAP2_MCBSP4_CLKS_MASK (1 << 2) /* > 242x */ +#define OMAP2_MCBSP3_CLKS_MASK (1 << 0) /* > 242x */ + +/* CONTROL_STATUS bits */ +#define OMAP2_DEVICETYPE_MASK (0x7 << 8) +#define OMAP2_SYSBOOT_5_MASK (1 << 5) +#define OMAP2_SYSBOOT_4_MASK (1 << 4) +#define OMAP2_SYSBOOT_3_MASK (1 << 3) +#define OMAP2_SYSBOOT_2_MASK (1 << 2) +#define OMAP2_SYSBOOT_1_MASK (1 << 1) +#define OMAP2_SYSBOOT_0_MASK (1 << 0) + +/* CONTROL_PBIAS_LITE bits */ +#define OMAP343X_PBIASLITESUPPLY_HIGH1 (1 << 15) +#define OMAP343X_PBIASLITEVMODEERROR1 (1 << 11) +#define OMAP343X_PBIASSPEEDCTRL1 (1 << 10) +#define OMAP343X_PBIASLITEPWRDNZ1 (1 << 9) +#define OMAP343X_PBIASLITEVMODE1 (1 << 8) +#define OMAP343X_PBIASLITESUPPLY_HIGH0 (1 << 7) +#define OMAP343X_PBIASLITEVMODEERROR0 (1 << 3) +#define OMAP2_PBIASSPEEDCTRL0 (1 << 2) +#define OMAP2_PBIASLITEPWRDNZ0 (1 << 1) +#define OMAP2_PBIASLITEVMODE0 (1 << 0) + +/* CONTROL_PROG_IO1 bits */ +#define OMAP3630_PRG_SDMMC1_SPEEDCTRL (1 << 20) + +/* CONTROL_IVA2_BOOTMOD bits */ +#define OMAP3_IVA2_BOOTMOD_SHIFT 0 +#define OMAP3_IVA2_BOOTMOD_MASK (0xf << 0) +#define OMAP3_IVA2_BOOTMOD_IDLE (0x1 << 0) + +/* CONTROL_PADCONF_X bits */ +#define OMAP3_PADCONF_WAKEUPEVENT0 (1 << 15) +#define OMAP3_PADCONF_WAKEUPENABLE0 (1 << 14) + +#define OMAP343X_SCRATCHPAD_ROM (OMAP343X_CTRL_BASE + 0x860) +#define OMAP343X_SCRATCHPAD (OMAP343X_CTRL_BASE + 0x910) +#define OMAP343X_SCRATCHPAD_ROM_OFFSET 0x19C +#define OMAP343X_SCRATCHPAD_REGADDR(reg) OMAP2_L4_IO_ADDRESS(\ + OMAP343X_SCRATCHPAD + reg) + +/* AM35XX_CONTROL_IPSS_CLK_CTRL bits */ +#define AM35XX_USBOTG_VBUSP_CLK_SHIFT 0 +#define AM35XX_CPGMAC_VBUSP_CLK_SHIFT 1 +#define AM35XX_VPFE_VBUSP_CLK_SHIFT 2 +#define AM35XX_HECC_VBUSP_CLK_SHIFT 3 +#define AM35XX_USBOTG_FCLK_SHIFT 8 +#define AM35XX_CPGMAC_FCLK_SHIFT 9 +#define AM35XX_VPFE_FCLK_SHIFT 10 + +/* AM35XX CONTROL_LVL_INTR_CLEAR bits */ +#define AM35XX_CPGMAC_C0_MISC_PULSE_CLR BIT(0) +#define AM35XX_CPGMAC_C0_RX_PULSE_CLR BIT(1) +#define AM35XX_CPGMAC_C0_RX_THRESH_CLR BIT(2) +#define AM35XX_CPGMAC_C0_TX_PULSE_CLR BIT(3) +#define AM35XX_USBOTGSS_INT_CLR BIT(4) +#define AM35XX_VPFE_CCDC_VD0_INT_CLR BIT(5) +#define AM35XX_VPFE_CCDC_VD1_INT_CLR BIT(6) +#define AM35XX_VPFE_CCDC_VD2_INT_CLR BIT(7) + +/* AM35XX CONTROL_IP_SW_RESET bits */ +#define AM35XX_USBOTGSS_SW_RST BIT(0) +#define AM35XX_CPGMACSS_SW_RST BIT(1) +#define AM35XX_VPFE_VBUSP_SW_RST BIT(2) +#define AM35XX_HECC_SW_RST BIT(3) +#define AM35XX_VPFE_PCLK_SW_RST BIT(4) + +/* AM33XX CONTROL_STATUS register */ +#define AM33XX_CONTROL_STATUS 0x040 +#define AM33XX_CONTROL_SEC_CLK_CTRL 0x1bc + +/* AM33XX CONTROL_STATUS bitfields (partial) */ +#define AM33XX_CONTROL_STATUS_SYSBOOT1_SHIFT 22 +#define AM33XX_CONTROL_STATUS_SYSBOOT1_WIDTH 0x2 +#define AM33XX_CONTROL_STATUS_SYSBOOT1_MASK (0x3 << 22) + +/* AM33XX PWMSS Control register */ +#define AM33XX_PWMSS_TBCLK_CLKCTRL 0x664 + +/* AM33XX PWMSS Control bitfields */ +#define AM33XX_PWMSS0_TBCLKEN_SHIFT 0 +#define AM33XX_PWMSS1_TBCLKEN_SHIFT 1 +#define AM33XX_PWMSS2_TBCLKEN_SHIFT 2 + +/* DEV Feature register to identify AM33XX features */ +#define AM33XX_DEV_FEATURE 0x604 +#define AM33XX_SGX_MASK BIT(29) + +/* Additional AM33XX/AM43XX CONTROL registers */ +#define AM33XX_CONTROL_SYSCONFIG_OFFSET 0x0010 +#define AM33XX_CONTROL_STATUS_OFFSET 0x0040 +#define AM43XX_CONTROL_MPU_L2_CTRL_OFFSET 0x01e0 +#define AM33XX_CONTROL_CORTEX_VBBLDO_CTRL_OFFSET 0x041c +#define AM33XX_CONTROL_CORE_SLDO_CTRL_OFFSET 0x0428 +#define AM33XX_CONTROL_MPU_SLDO_CTRL_OFFSET 0x042c +#define AM33XX_CONTROL_CLK32KDIVRATIO_CTRL_OFFSET 0x0444 +#define AM33XX_CONTROL_BANDGAP_CTRL_OFFSET 0x0448 +#define AM33XX_CONTROL_BANDGAP_TRIM_OFFSET 0x044c +#define AM33XX_CONTROL_PLL_CLKINPULOW_CTRL_OFFSET 0x0458 +#define AM33XX_CONTROL_MOSC_CTRL_OFFSET 0x0468 +#define AM33XX_CONTROL_RCOSC_CTRL_OFFSET 0x046c +#define AM33XX_CONTROL_DEEPSLEEP_CTRL_OFFSET 0x0470 +#define AM43XX_CONTROL_DISPLAY_PLL_SEL_OFFSET 0x0534 +#define AM33XX_CONTROL_INIT_PRIORITY_0_OFFSET 0x0608 +#define AM33XX_CONTROL_INIT_PRIORITY_1_OFFSET 0x060c +#define AM33XX_CONTROL_MMU_CFG_OFFSET 0x0610 +#define AM33XX_CONTROL_TPTC_CFG_OFFSET 0x0614 +#define AM33XX_CONTROL_USB_CTRL0_OFFSET 0x0620 +#define AM33XX_CONTROL_USB_CTRL1_OFFSET 0x0628 +#define AM33XX_CONTROL_USB_WKUP_CTRL_OFFSET 0x0648 +#define AM43XX_CONTROL_USB_CTRL2_OFFSET 0x064c +#define AM43XX_CONTROL_GMII_SEL_OFFSET 0x0650 +#define AM43XX_CONTROL_MPUSS_CTRL_OFFSET 0x0654 +#define AM43XX_CONTROL_TIMER_CASCADE_CTRL_OFFSET 0x0658 +#define AM43XX_CONTROL_PWMSS_CTRL_OFFSET 0x0664 +#define AM33XX_CONTROL_MREQPRIO_0_OFFSET 0x0670 +#define AM33XX_CONTROL_MREQPRIO_1_OFFSET 0x0674 +#define AM33XX_CONTROL_HW_EVENT_SEL_GRP1_OFFSET 0x0690 +#define AM33XX_CONTROL_HW_EVENT_SEL_GRP2_OFFSET 0x0694 +#define AM33XX_CONTROL_HW_EVENT_SEL_GRP3_OFFSET 0x0698 +#define AM33XX_CONTROL_HW_EVENT_SEL_GRP4_OFFSET 0x069c +#define AM33XX_CONTROL_SMRT_CTRL_OFFSET 0x06a0 +#define AM33XX_CONTROL_MPUSS_HW_DEBUG_SEL_OFFSET 0x06a4 +#define AM43XX_CONTROL_CQDETECT_STS_OFFSET 0x0e00 +#define AM43XX_CONTROL_CQDETECT_STS2_OFFSET 0x0e08 +#define AM43XX_CONTROL_VTP_CTRL_OFFSET 0x0e0c +#define AM33XX_CONTROL_VREF_CTRL_OFFSET 0x0e14 +#define AM33XX_CONTROL_TPCC_EVT_MUX_0_3_OFFSET 0x0f90 +#define AM33XX_CONTROL_TPCC_EVT_MUX_4_7_OFFSET 0x0f94 +#define AM33XX_CONTROL_TPCC_EVT_MUX_8_11_OFFSET 0x0f98 +#define AM33XX_CONTROL_TPCC_EVT_MUX_12_15_OFFSET 0x0f9c +#define AM33XX_CONTROL_TPCC_EVT_MUX_16_19_OFFSET 0x0fa0 +#define AM33XX_CONTROL_TPCC_EVT_MUX_20_23_OFFSET 0x0fa4 +#define AM33XX_CONTROL_TPCC_EVT_MUX_24_27_OFFSET 0x0fa8 +#define AM33XX_CONTROL_TPCC_EVT_MUX_28_31_OFFSET 0x0fac +#define AM33XX_CONTROL_TPCC_EVT_MUX_32_35_OFFSET 0x0fb0 +#define AM33XX_CONTROL_TPCC_EVT_MUX_36_39_OFFSET 0x0fb4 +#define AM33XX_CONTROL_TPCC_EVT_MUX_40_43_OFFSET 0x0fb8 +#define AM33XX_CONTROL_TPCC_EVT_MUX_44_47_OFFSET 0x0fbc +#define AM33XX_CONTROL_TPCC_EVT_MUX_48_51_OFFSET 0x0fc0 +#define AM33XX_CONTROL_TPCC_EVT_MUX_52_55_OFFSET 0x0fc4 +#define AM33XX_CONTROL_TPCC_EVT_MUX_56_59_OFFSET 0x0fc8 +#define AM33XX_CONTROL_TPCC_EVT_MUX_60_63_OFFSET 0x0fcc +#define AM33XX_CONTROL_TIMER_EVT_CAPT_OFFSET 0x0fd0 +#define AM33XX_CONTROL_ECAP_EVT_CAPT_OFFSET 0x0fd4 +#define AM33XX_CONTROL_ADC_EVT_CAPT_OFFSET 0x0fd8 +#define AM43XX_CONTROL_ADC1_EVT_CAPT_OFFSET 0x0fdc +#define AM33XX_CONTROL_RESET_ISO_OFFSET 0x1000 + +/* CONTROL OMAP STATUS register to identify OMAP3 features */ +#define OMAP3_CONTROL_OMAP_STATUS 0x044c + +#define OMAP3_SGX_SHIFT 13 +#define OMAP3_SGX_MASK (3 << OMAP3_SGX_SHIFT) +#define FEAT_SGX_FULL 0 +#define FEAT_SGX_HALF 1 +#define FEAT_SGX_NONE 2 + +#define OMAP3_IVA_SHIFT 12 +#define OMAP3_IVA_MASK (1 << OMAP3_IVA_SHIFT) +#define FEAT_IVA 0 +#define FEAT_IVA_NONE 1 + +#define OMAP3_L2CACHE_SHIFT 10 +#define OMAP3_L2CACHE_MASK (3 << OMAP3_L2CACHE_SHIFT) +#define FEAT_L2CACHE_NONE 0 +#define FEAT_L2CACHE_64KB 1 +#define FEAT_L2CACHE_128KB 2 +#define FEAT_L2CACHE_256KB 3 + +#define OMAP3_ISP_SHIFT 5 +#define OMAP3_ISP_MASK (1 << OMAP3_ISP_SHIFT) +#define FEAT_ISP 0 +#define FEAT_ISP_NONE 1 + +#define OMAP3_NEON_SHIFT 4 +#define OMAP3_NEON_MASK (1 << OMAP3_NEON_SHIFT) +#define FEAT_NEON 0 +#define FEAT_NEON_NONE 1 + + +#ifndef __ASSEMBLY__ +#ifdef CONFIG_ARCH_OMAP2PLUS +extern u8 omap_ctrl_readb(u16 offset); +extern u16 omap_ctrl_readw(u16 offset); +extern u32 omap_ctrl_readl(u16 offset); +extern void omap_ctrl_writeb(u8 val, u16 offset); +extern void omap_ctrl_writew(u16 val, u16 offset); +extern void omap_ctrl_writel(u32 val, u16 offset); + +extern void omap3_restore(void); +extern void omap3_restore_es3(void); +extern void omap3_restore_3630(void); +extern u32 omap3_arm_context[128]; +extern void omap3_control_save_context(void); +extern void omap3_control_restore_context(void); +extern void omap3_ctrl_write_boot_mode(u8 bootmode); +extern void omap3630_ctrl_disable_rta(void); +extern int omap3_ctrl_save_padconf(void); +void omap3_ctrl_init(void); +int omap2_control_base_init(void); +int omap_control_init(void); +#else +#define omap_ctrl_readb(x) 0 +#define omap_ctrl_readw(x) 0 +#define omap_ctrl_readl(x) 0 +#define omap4_ctrl_pad_readl(x) 0 +#define omap_ctrl_writeb(x, y) WARN_ON(1) +#define omap_ctrl_writew(x, y) WARN_ON(1) +#define omap_ctrl_writel(x, y) WARN_ON(1) +#define omap4_ctrl_pad_writel(x, y) WARN_ON(1) +#endif +#endif /* __ASSEMBLY__ */ + +#endif /* __ARCH_ARM_MACH_OMAP2_CONTROL_H */ + diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c new file mode 100644 index 000000000..2ab5dcbfb --- /dev/null +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -0,0 +1,420 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/cpuidle34xx.c + * + * OMAP3 CPU IDLE Routines + * + * Copyright (C) 2008 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * + * Copyright (C) 2007 Texas Instruments, Inc. + * Karthik Dasu <karthik-dp@ti.com> + * + * Copyright (C) 2006 Nokia Corporation + * Tony Lindgren <tony@atomide.com> + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Richard Woodruff <r-woodruff2@ti.com> + * + * Based on pm.c for omap2 + */ + +#include <linux/sched.h> +#include <linux/cpuidle.h> +#include <linux/export.h> +#include <linux/cpu_pm.h> +#include <asm/cpuidle.h> + +#include "powerdomain.h" +#include "clockdomain.h" + +#include "pm.h" +#include "control.h" +#include "common.h" +#include "soc.h" + +/* Mach specific information to be recorded in the C-state driver_data */ +struct omap3_idle_statedata { + u8 mpu_state; + u8 core_state; + u8 per_min_state; + u8 flags; +}; + +static struct powerdomain *mpu_pd, *core_pd, *per_pd, *cam_pd; + +/* + * Possible flag bits for struct omap3_idle_statedata.flags: + * + * OMAP_CPUIDLE_CX_NO_CLKDM_IDLE: don't allow the MPU clockdomain to go + * inactive. This in turn prevents the MPU DPLL from entering autoidle + * mode, so wakeup latency is greatly reduced, at the cost of additional + * energy consumption. This also prevents the CORE clockdomain from + * entering idle. + */ +#define OMAP_CPUIDLE_CX_NO_CLKDM_IDLE BIT(0) + +/* + * Prevent PER OFF if CORE is not in RETention or OFF as this would + * disable PER wakeups completely. + */ +static struct omap3_idle_statedata omap3_idle_data[] = { + { + .mpu_state = PWRDM_POWER_ON, + .core_state = PWRDM_POWER_ON, + /* In C1 do not allow PER state lower than CORE state */ + .per_min_state = PWRDM_POWER_ON, + .flags = OMAP_CPUIDLE_CX_NO_CLKDM_IDLE, + }, + { + .mpu_state = PWRDM_POWER_ON, + .core_state = PWRDM_POWER_ON, + .per_min_state = PWRDM_POWER_RET, + }, + { + .mpu_state = PWRDM_POWER_RET, + .core_state = PWRDM_POWER_ON, + .per_min_state = PWRDM_POWER_RET, + }, + { + .mpu_state = PWRDM_POWER_OFF, + .core_state = PWRDM_POWER_ON, + .per_min_state = PWRDM_POWER_RET, + }, + { + .mpu_state = PWRDM_POWER_RET, + .core_state = PWRDM_POWER_RET, + .per_min_state = PWRDM_POWER_OFF, + }, + { + .mpu_state = PWRDM_POWER_OFF, + .core_state = PWRDM_POWER_RET, + .per_min_state = PWRDM_POWER_OFF, + }, + { + .mpu_state = PWRDM_POWER_OFF, + .core_state = PWRDM_POWER_OFF, + .per_min_state = PWRDM_POWER_OFF, + }, +}; + +/** + * omap3_enter_idle - Programs OMAP3 to enter the specified state + * @dev: cpuidle device + * @drv: cpuidle driver + * @index: the index of state to be entered + */ +static int omap3_enter_idle(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + struct omap3_idle_statedata *cx = &omap3_idle_data[index]; + int error; + + if (omap_irq_pending() || need_resched()) + goto return_sleep_time; + + /* Deny idle for C1 */ + if (cx->flags & OMAP_CPUIDLE_CX_NO_CLKDM_IDLE) { + clkdm_deny_idle(mpu_pd->pwrdm_clkdms[0]); + } else { + pwrdm_set_next_pwrst(mpu_pd, cx->mpu_state); + pwrdm_set_next_pwrst(core_pd, cx->core_state); + } + + /* + * Call idle CPU PM enter notifier chain so that + * VFP context is saved. + */ + if (cx->mpu_state == PWRDM_POWER_OFF) { + error = cpu_pm_enter(); + if (error) + goto out_clkdm_set; + } + + /* Execute ARM wfi */ + omap_sram_idle(true); + + /* + * Call idle CPU PM enter notifier chain to restore + * VFP context. + */ + if (cx->mpu_state == PWRDM_POWER_OFF && + pwrdm_read_prev_pwrst(mpu_pd) == PWRDM_POWER_OFF) + cpu_pm_exit(); + +out_clkdm_set: + /* Re-allow idle for C1 */ + if (cx->flags & OMAP_CPUIDLE_CX_NO_CLKDM_IDLE) + clkdm_allow_idle(mpu_pd->pwrdm_clkdms[0]); + +return_sleep_time: + + return index; +} + +/** + * next_valid_state - Find next valid C-state + * @dev: cpuidle device + * @drv: cpuidle driver + * @index: Index of currently selected c-state + * + * If the state corresponding to index is valid, index is returned back + * to the caller. Else, this function searches for a lower c-state which is + * still valid (as defined in omap3_power_states[]) and returns its index. + * + * A state is valid if the 'valid' field is enabled and + * if it satisfies the enable_off_mode condition. + */ +static int next_valid_state(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index) +{ + struct omap3_idle_statedata *cx = &omap3_idle_data[index]; + u32 mpu_deepest_state = PWRDM_POWER_RET; + u32 core_deepest_state = PWRDM_POWER_RET; + int idx; + int next_index = 0; /* C1 is the default value */ + + if (enable_off_mode) { + mpu_deepest_state = PWRDM_POWER_OFF; + /* + * Erratum i583: valable for ES rev < Es1.2 on 3630. + * CORE OFF mode is not supported in a stable form, restrict + * instead the CORE state to RET. + */ + if (!IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)) + core_deepest_state = PWRDM_POWER_OFF; + } + + /* Check if current state is valid */ + if ((cx->mpu_state >= mpu_deepest_state) && + (cx->core_state >= core_deepest_state)) + return index; + + /* + * Drop to next valid state. + * Start search from the next (lower) state. + */ + for (idx = index - 1; idx >= 0; idx--) { + cx = &omap3_idle_data[idx]; + if ((cx->mpu_state >= mpu_deepest_state) && + (cx->core_state >= core_deepest_state)) { + next_index = idx; + break; + } + } + + return next_index; +} + +/** + * omap3_enter_idle_bm - Checks for any bus activity + * @dev: cpuidle device + * @drv: cpuidle driver + * @index: array index of target state to be programmed + * + * This function checks for any pending activity and then programs + * the device to the specified or a safer state. + */ +static int omap3_enter_idle_bm(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + int new_state_idx, ret; + u8 per_next_state, per_saved_state; + struct omap3_idle_statedata *cx; + + /* + * Use only C1 if CAM is active. + * CAM does not have wakeup capability in OMAP3. + */ + if (pwrdm_read_pwrst(cam_pd) == PWRDM_POWER_ON) + new_state_idx = drv->safe_state_index; + else + new_state_idx = next_valid_state(dev, drv, index); + + /* + * FIXME: we currently manage device-specific idle states + * for PER and CORE in combination with CPU-specific + * idle states. This is wrong, and device-specific + * idle management needs to be separated out into + * its own code. + */ + + /* Program PER state */ + cx = &omap3_idle_data[new_state_idx]; + + per_next_state = pwrdm_read_next_pwrst(per_pd); + per_saved_state = per_next_state; + if (per_next_state < cx->per_min_state) { + per_next_state = cx->per_min_state; + pwrdm_set_next_pwrst(per_pd, per_next_state); + } + + ret = omap3_enter_idle(dev, drv, new_state_idx); + + /* Restore original PER state if it was modified */ + if (per_next_state != per_saved_state) + pwrdm_set_next_pwrst(per_pd, per_saved_state); + + return ret; +} + +static struct cpuidle_driver omap3_idle_driver = { + .name = "omap3_idle", + .owner = THIS_MODULE, + .states = { + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 2 + 2, + .target_residency = 5, + .name = "C1", + .desc = "MPU ON + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 10 + 10, + .target_residency = 30, + .name = "C2", + .desc = "MPU ON + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 50 + 50, + .target_residency = 300, + .name = "C3", + .desc = "MPU RET + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 1500 + 1800, + .target_residency = 4000, + .name = "C4", + .desc = "MPU OFF + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 2500 + 7500, + .target_residency = 12000, + .name = "C5", + .desc = "MPU RET + CORE RET", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 3000 + 8500, + .target_residency = 15000, + .name = "C6", + .desc = "MPU OFF + CORE RET", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 10000 + 30000, + .target_residency = 30000, + .name = "C7", + .desc = "MPU OFF + CORE OFF", + }, + }, + .state_count = ARRAY_SIZE(omap3_idle_data), + .safe_state_index = 0, +}; + +/* + * Numbers based on measurements made in October 2009 for PM optimized kernel + * with CPU freq enabled on device Nokia N900. Assumes OPP2 (main idle OPP, + * and worst case latencies). + */ +static struct cpuidle_driver omap3430_idle_driver = { + .name = "omap3430_idle", + .owner = THIS_MODULE, + .states = { + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 110 + 162, + .target_residency = 5, + .name = "C1", + .desc = "MPU ON + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 106 + 180, + .target_residency = 309, + .name = "C2", + .desc = "MPU ON + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 107 + 410, + .target_residency = 46057, + .name = "C3", + .desc = "MPU RET + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 121 + 3374, + .target_residency = 46057, + .name = "C4", + .desc = "MPU OFF + CORE ON", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 855 + 1146, + .target_residency = 46057, + .name = "C5", + .desc = "MPU RET + CORE RET", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 7580 + 4134, + .target_residency = 484329, + .name = "C6", + .desc = "MPU OFF + CORE RET", + }, + { + .flags = CPUIDLE_FLAG_RCU_IDLE, + .enter = omap3_enter_idle_bm, + .exit_latency = 7505 + 15274, + .target_residency = 484329, + .name = "C7", + .desc = "MPU OFF + CORE OFF", + }, + }, + .state_count = ARRAY_SIZE(omap3_idle_data), + .safe_state_index = 0, +}; + +/* Public functions */ + +/** + * omap3_idle_init - Init routine for OMAP3 idle + * + * Registers the OMAP3 specific cpuidle driver to the cpuidle + * framework with the valid set of states. + */ +int __init omap3_idle_init(void) +{ + mpu_pd = pwrdm_lookup("mpu_pwrdm"); + core_pd = pwrdm_lookup("core_pwrdm"); + per_pd = pwrdm_lookup("per_pwrdm"); + cam_pd = pwrdm_lookup("cam_pwrdm"); + + if (!mpu_pd || !core_pd || !per_pd || !cam_pd) + return -ENODEV; + + if (cpu_is_omap3430()) + return cpuidle_register(&omap3430_idle_driver, NULL); + else + return cpuidle_register(&omap3_idle_driver, NULL); +} diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c new file mode 100644 index 000000000..df106524d --- /dev/null +++ b/arch/arm/mach-omap2/cpuidle44xx.c @@ -0,0 +1,330 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4+ CPU idle Routines + * + * Copyright (C) 2011-2013 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * Rajendra Nayak <rnayak@ti.com> + */ + +#include <linux/sched.h> +#include <linux/cpuidle.h> +#include <linux/cpu_pm.h> +#include <linux/export.h> +#include <linux/tick.h> + +#include <asm/cpuidle.h> + +#include "common.h" +#include "pm.h" +#include "prm.h" +#include "soc.h" +#include "clockdomain.h" + +#define MAX_CPUS 2 + +/* Machine specific information */ +struct idle_statedata { + u32 cpu_state; + u32 mpu_logic_state; + u32 mpu_state; + u32 mpu_state_vote; +}; + +static struct idle_statedata omap4_idle_data[] = { + { + .cpu_state = PWRDM_POWER_ON, + .mpu_state = PWRDM_POWER_ON, + .mpu_logic_state = PWRDM_POWER_RET, + }, + { + .cpu_state = PWRDM_POWER_OFF, + .mpu_state = PWRDM_POWER_RET, + .mpu_logic_state = PWRDM_POWER_RET, + }, + { + .cpu_state = PWRDM_POWER_OFF, + .mpu_state = PWRDM_POWER_RET, + .mpu_logic_state = PWRDM_POWER_OFF, + }, +}; + +static struct idle_statedata omap5_idle_data[] = { + { + .cpu_state = PWRDM_POWER_ON, + .mpu_state = PWRDM_POWER_ON, + .mpu_logic_state = PWRDM_POWER_ON, + }, + { + .cpu_state = PWRDM_POWER_RET, + .mpu_state = PWRDM_POWER_RET, + .mpu_logic_state = PWRDM_POWER_RET, + }, +}; + +static struct powerdomain *mpu_pd, *cpu_pd[MAX_CPUS]; +static struct clockdomain *cpu_clkdm[MAX_CPUS]; + +static atomic_t abort_barrier; +static bool cpu_done[MAX_CPUS]; +static struct idle_statedata *state_ptr = &omap4_idle_data[0]; +static DEFINE_RAW_SPINLOCK(mpu_lock); + +/* Private functions */ + +/** + * omap_enter_idle_[simple/coupled] - OMAP4PLUS cpuidle entry functions + * @dev: cpuidle device + * @drv: cpuidle driver + * @index: the index of state to be entered + * + * Called from the CPUidle framework to program the device to the + * specified low power state selected by the governor. + * Returns the amount of time spent in the low power state. + */ +static int omap_enter_idle_simple(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + omap_do_wfi(); + return index; +} + +static int omap_enter_idle_smp(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + struct idle_statedata *cx = state_ptr + index; + unsigned long flag; + + raw_spin_lock_irqsave(&mpu_lock, flag); + cx->mpu_state_vote++; + if (cx->mpu_state_vote == num_online_cpus()) { + pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state); + omap_set_pwrdm_state(mpu_pd, cx->mpu_state); + } + raw_spin_unlock_irqrestore(&mpu_lock, flag); + + omap4_enter_lowpower(dev->cpu, cx->cpu_state, true); + + raw_spin_lock_irqsave(&mpu_lock, flag); + if (cx->mpu_state_vote == num_online_cpus()) + omap_set_pwrdm_state(mpu_pd, PWRDM_POWER_ON); + cx->mpu_state_vote--; + raw_spin_unlock_irqrestore(&mpu_lock, flag); + + return index; +} + +static int omap_enter_idle_coupled(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + struct idle_statedata *cx = state_ptr + index; + u32 mpuss_can_lose_context = 0; + int error; + + /* + * CPU0 has to wait and stay ON until CPU1 is OFF state. + * This is necessary to honour hardware recommondation + * of triggeing all the possible low power modes once CPU1 is + * out of coherency and in OFF mode. + */ + if (dev->cpu == 0 && cpumask_test_cpu(1, cpu_online_mask)) { + while (pwrdm_read_pwrst(cpu_pd[1]) != PWRDM_POWER_OFF) { + cpu_relax(); + + /* + * CPU1 could have already entered & exited idle + * without hitting off because of a wakeup + * or a failed attempt to hit off mode. Check for + * that here, otherwise we could spin forever + * waiting for CPU1 off. + */ + if (cpu_done[1]) + goto fail; + + } + } + + mpuss_can_lose_context = (cx->mpu_state == PWRDM_POWER_RET) && + (cx->mpu_logic_state == PWRDM_POWER_OFF); + + /* Enter broadcast mode for periodic timers */ + tick_broadcast_enable(); + + /* Enter broadcast mode for one-shot timers */ + tick_broadcast_enter(); + + /* + * Call idle CPU PM enter notifier chain so that + * VFP and per CPU interrupt context is saved. + */ + error = cpu_pm_enter(); + if (error) + goto cpu_pm_out; + + if (dev->cpu == 0) { + pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state); + omap_set_pwrdm_state(mpu_pd, cx->mpu_state); + + /* + * Call idle CPU cluster PM enter notifier chain + * to save GIC and wakeupgen context. + */ + if (mpuss_can_lose_context) { + error = cpu_cluster_pm_enter(); + if (error) { + index = 0; + cx = state_ptr + index; + pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state); + omap_set_pwrdm_state(mpu_pd, cx->mpu_state); + mpuss_can_lose_context = 0; + } + } + } + + omap4_enter_lowpower(dev->cpu, cx->cpu_state, true); + cpu_done[dev->cpu] = true; + + /* Wakeup CPU1 only if it is not offlined */ + if (dev->cpu == 0 && cpumask_test_cpu(1, cpu_online_mask)) { + + if (IS_PM44XX_ERRATUM(PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD) && + mpuss_can_lose_context) + gic_dist_disable(); + + clkdm_deny_idle(cpu_clkdm[1]); + omap_set_pwrdm_state(cpu_pd[1], PWRDM_POWER_ON); + clkdm_allow_idle(cpu_clkdm[1]); + + if (IS_PM44XX_ERRATUM(PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD) && + mpuss_can_lose_context) { + while (gic_dist_disabled()) { + udelay(1); + cpu_relax(); + } + gic_timer_retrigger(); + } + } + + /* + * Call idle CPU cluster PM exit notifier chain + * to restore GIC and wakeupgen context. + */ + if (dev->cpu == 0 && mpuss_can_lose_context) + cpu_cluster_pm_exit(); + + /* + * Call idle CPU PM exit notifier chain to restore + * VFP and per CPU IRQ context. + */ + cpu_pm_exit(); + +cpu_pm_out: + tick_broadcast_exit(); + +fail: + cpuidle_coupled_parallel_barrier(dev, &abort_barrier); + cpu_done[dev->cpu] = false; + + return index; +} + +static struct cpuidle_driver omap4_idle_driver = { + .name = "omap4_idle", + .owner = THIS_MODULE, + .states = { + { + /* C1 - CPU0 ON + CPU1 ON + MPU ON */ + .exit_latency = 2 + 2, + .target_residency = 5, + .enter = omap_enter_idle_simple, + .name = "C1", + .desc = "CPUx ON, MPUSS ON" + }, + { + /* C2 - CPU0 OFF + CPU1 OFF + MPU CSWR */ + .exit_latency = 328 + 440, + .target_residency = 960, + .flags = CPUIDLE_FLAG_COUPLED | + CPUIDLE_FLAG_RCU_IDLE, + .enter = omap_enter_idle_coupled, + .name = "C2", + .desc = "CPUx OFF, MPUSS CSWR", + }, + { + /* C3 - CPU0 OFF + CPU1 OFF + MPU OSWR */ + .exit_latency = 460 + 518, + .target_residency = 1100, + .flags = CPUIDLE_FLAG_COUPLED | + CPUIDLE_FLAG_RCU_IDLE, + .enter = omap_enter_idle_coupled, + .name = "C3", + .desc = "CPUx OFF, MPUSS OSWR", + }, + }, + .state_count = ARRAY_SIZE(omap4_idle_data), + .safe_state_index = 0, +}; + +static struct cpuidle_driver omap5_idle_driver = { + .name = "omap5_idle", + .owner = THIS_MODULE, + .states = { + { + /* C1 - CPU0 ON + CPU1 ON + MPU ON */ + .exit_latency = 2 + 2, + .target_residency = 5, + .enter = omap_enter_idle_simple, + .name = "C1", + .desc = "CPUx WFI, MPUSS ON" + }, + { + /* C2 - CPU0 RET + CPU1 RET + MPU CSWR */ + .exit_latency = 48 + 60, + .target_residency = 100, + .flags = CPUIDLE_FLAG_TIMER_STOP | + CPUIDLE_FLAG_RCU_IDLE, + .enter = omap_enter_idle_smp, + .name = "C2", + .desc = "CPUx CSWR, MPUSS CSWR", + }, + }, + .state_count = ARRAY_SIZE(omap5_idle_data), + .safe_state_index = 0, +}; + +/* Public functions */ + +/** + * omap4_idle_init - Init routine for OMAP4+ idle + * + * Registers the OMAP4+ specific cpuidle driver to the cpuidle + * framework with the valid set of states. + */ +int __init omap4_idle_init(void) +{ + struct cpuidle_driver *idle_driver; + + if (soc_is_omap54xx()) { + state_ptr = &omap5_idle_data[0]; + idle_driver = &omap5_idle_driver; + } else { + state_ptr = &omap4_idle_data[0]; + idle_driver = &omap4_idle_driver; + } + + mpu_pd = pwrdm_lookup("mpu_pwrdm"); + cpu_pd[0] = pwrdm_lookup("cpu0_pwrdm"); + cpu_pd[1] = pwrdm_lookup("cpu1_pwrdm"); + if ((!mpu_pd) || (!cpu_pd[0]) || (!cpu_pd[1])) + return -ENODEV; + + cpu_clkdm[0] = clkdm_lookup("mpu0_clkdm"); + cpu_clkdm[1] = clkdm_lookup("mpu1_clkdm"); + if (!cpu_clkdm[0] || !cpu_clkdm[1]) + return -ENODEV; + + return cpuidle_register(idle_driver, cpu_online_mask); +} diff --git a/arch/arm/mach-omap2/ctrl_module_wkup_44xx.h b/arch/arm/mach-omap2/ctrl_module_wkup_44xx.h new file mode 100644 index 000000000..414f14d1e --- /dev/null +++ b/arch/arm/mach-omap2/ctrl_module_wkup_44xx.h @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx CTRL_MODULE_WKUP registers and bitfields + * + * Copyright (C) 2009-2010 Texas Instruments, Inc. + * + * Benoit Cousson (b-cousson@ti.com) + * Santosh Shilimkar (santosh.shilimkar@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CTRL_MODULE_WKUP_44XX_H +#define __ARCH_ARM_MACH_OMAP2_CTRL_MODULE_WKUP_44XX_H + + +/* Base address */ +#define OMAP4_CTRL_MODULE_WKUP 0x4a30c000 + +/* Registers offset */ +#define OMAP4_CTRL_MODULE_WKUP_IP_REVISION 0x0000 +#define OMAP4_CTRL_MODULE_WKUP_IP_HWINFO 0x0004 +#define OMAP4_CTRL_MODULE_WKUP_IP_SYSCONFIG 0x0010 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_0 0x0460 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_1 0x0464 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_2 0x0468 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_3 0x046c +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_4 0x0470 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_5 0x0474 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_6 0x0478 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_7 0x047c +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_8 0x0480 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_9 0x0484 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_10 0x0488 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_11 0x048c +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_12 0x0490 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_13 0x0494 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_14 0x0498 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_15 0x049c +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_16 0x04a0 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_17 0x04a4 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_18 0x04a8 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_19 0x04ac +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_20 0x04b0 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_21 0x04b4 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_22 0x04b8 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_23 0x04bc +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_24 0x04c0 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_25 0x04c4 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_26 0x04c8 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_27 0x04cc +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_28 0x04d0 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_29 0x04d4 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_30 0x04d8 +#define OMAP4_CTRL_MODULE_WKUP_CONF_DEBUG_SEL_TST_31 0x04dc + +/* Registers shifts and masks */ + +/* IP_REVISION */ +#define OMAP4_IP_REV_SCHEME_SHIFT 30 +#define OMAP4_IP_REV_SCHEME_MASK (0x3 << 30) +#define OMAP4_IP_REV_FUNC_SHIFT 16 +#define OMAP4_IP_REV_FUNC_MASK (0xfff << 16) +#define OMAP4_IP_REV_RTL_SHIFT 11 +#define OMAP4_IP_REV_RTL_MASK (0x1f << 11) +#define OMAP4_IP_REV_MAJOR_SHIFT 8 +#define OMAP4_IP_REV_MAJOR_MASK (0x7 << 8) +#define OMAP4_IP_REV_CUSTOM_SHIFT 6 +#define OMAP4_IP_REV_CUSTOM_MASK (0x3 << 6) +#define OMAP4_IP_REV_MINOR_SHIFT 0 +#define OMAP4_IP_REV_MINOR_MASK (0x3f << 0) + +/* IP_HWINFO */ +#define OMAP4_IP_HWINFO_SHIFT 0 +#define OMAP4_IP_HWINFO_MASK (0xffffffff << 0) + +/* IP_SYSCONFIG */ +#define OMAP4_IP_SYSCONFIG_IDLEMODE_SHIFT 2 +#define OMAP4_IP_SYSCONFIG_IDLEMODE_MASK (0x3 << 2) + +/* CONF_DEBUG_SEL_TST_0 */ +#define OMAP4_WKUP_MODE_SHIFT 0 +#define OMAP4_WKUP_MODE_MASK (1 << 0) + +#endif diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c new file mode 100644 index 000000000..8e6d4116d --- /dev/null +++ b/arch/arm/mach-omap2/devices.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * linux/arch/arm/mach-omap2/devices.c + * + * OMAP2 platform device setup/initialization + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/dma-mapping.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/of.h> + +#include <asm/mach-types.h> +#include <asm/mach/map.h> + +#include <linux/omap-dma.h> + +#include "iomap.h" +#include "omap_hwmod.h" +#include "omap_device.h" + +#include "soc.h" +#include "common.h" +#include "control.h" +#include "display.h" + +#define L3_MODULES_MAX_LEN 12 +#define L3_MODULES 3 + +/*-------------------------------------------------------------------------*/ + +#if IS_ENABLED(CONFIG_VIDEO_OMAP2_VOUT) +#if IS_ENABLED(CONFIG_FB_OMAP2) +static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = { +}; +#else +static struct resource omap_vout_resource[2] = { +}; +#endif + +static u64 omap_vout_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device omap_vout_device = { + .name = "omap_vout", + .num_resources = ARRAY_SIZE(omap_vout_resource), + .resource = &omap_vout_resource[0], + .id = -1, + .dev = { + .dma_mask = &omap_vout_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +int __init omap_init_vout(void) +{ + return platform_device_register(&omap_vout_device); +} +#else +int __init omap_init_vout(void) { return 0; } +#endif diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c new file mode 100644 index 000000000..dbec3bb9f --- /dev/null +++ b/arch/arm/mach-omap2/display.c @@ -0,0 +1,414 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2plus display device setup / initialization. + * + * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ + * Senthilvadivu Guruswamy + * Sumit Semwal + */ + +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/delay.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/slab.h> +#include <linux/mfd/syscon.h> +#include <linux/regmap.h> + +#include <linux/platform_data/omapdss.h> +#include "omap_hwmod.h" +#include "omap_device.h" +#include "common.h" + +#include "soc.h" +#include "iomap.h" +#include "control.h" +#include "display.h" +#include "prm.h" + +#define DISPC_CONTROL 0x0040 +#define DISPC_CONTROL2 0x0238 +#define DISPC_CONTROL3 0x0848 +#define DISPC_IRQSTATUS 0x0018 + +#define DSS_CONTROL 0x40 +#define DSS_SDI_CONTROL 0x44 +#define DSS_PLL_CONTROL 0x48 + +#define LCD_EN_MASK (0x1 << 0) +#define DIGIT_EN_MASK (0x1 << 1) + +#define FRAMEDONE_IRQ_SHIFT 0 +#define EVSYNC_EVEN_IRQ_SHIFT 2 +#define EVSYNC_ODD_IRQ_SHIFT 3 +#define FRAMEDONE2_IRQ_SHIFT 22 +#define FRAMEDONE3_IRQ_SHIFT 30 +#define FRAMEDONETV_IRQ_SHIFT 24 + +/* + * FRAMEDONE_IRQ_TIMEOUT: how long (in milliseconds) to wait during DISPC + * reset before deciding that something has gone wrong + */ +#define FRAMEDONE_IRQ_TIMEOUT 100 + +#if defined(CONFIG_FB_OMAP2) +static struct platform_device omap_display_device = { + .name = "omapdss", + .id = -1, + .dev = { + .platform_data = NULL, + }, +}; + +#define OMAP4_DSIPHY_SYSCON_OFFSET 0x78 + +static struct regmap *omap4_dsi_mux_syscon; + +static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes) +{ + u32 enable_mask, enable_shift; + u32 pipd_mask, pipd_shift; + u32 reg; + int ret; + + if (dsi_id == 0) { + enable_mask = OMAP4_DSI1_LANEENABLE_MASK; + enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT; + pipd_mask = OMAP4_DSI1_PIPD_MASK; + pipd_shift = OMAP4_DSI1_PIPD_SHIFT; + } else if (dsi_id == 1) { + enable_mask = OMAP4_DSI2_LANEENABLE_MASK; + enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT; + pipd_mask = OMAP4_DSI2_PIPD_MASK; + pipd_shift = OMAP4_DSI2_PIPD_SHIFT; + } else { + return -ENODEV; + } + + ret = regmap_read(omap4_dsi_mux_syscon, + OMAP4_DSIPHY_SYSCON_OFFSET, + ®); + if (ret) + return ret; + + reg &= ~enable_mask; + reg &= ~pipd_mask; + + reg |= (lanes << enable_shift) & enable_mask; + reg |= (lanes << pipd_shift) & pipd_mask; + + regmap_write(omap4_dsi_mux_syscon, OMAP4_DSIPHY_SYSCON_OFFSET, reg); + + return 0; +} + +static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask) +{ + if (cpu_is_omap44xx()) + return omap4_dsi_mux_pads(dsi_id, lane_mask); + + return 0; +} + +static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask) +{ + if (cpu_is_omap44xx()) + omap4_dsi_mux_pads(dsi_id, 0); +} + +static enum omapdss_version __init omap_display_get_version(void) +{ + if (cpu_is_omap24xx()) + return OMAPDSS_VER_OMAP24xx; + else if (cpu_is_omap3630()) + return OMAPDSS_VER_OMAP3630; + else if (cpu_is_omap34xx()) { + if (soc_is_am35xx()) { + return OMAPDSS_VER_AM35xx; + } else { + if (omap_rev() < OMAP3430_REV_ES3_0) + return OMAPDSS_VER_OMAP34xx_ES1; + else + return OMAPDSS_VER_OMAP34xx_ES3; + } + } else if (omap_rev() == OMAP4430_REV_ES1_0) + return OMAPDSS_VER_OMAP4430_ES1; + else if (omap_rev() == OMAP4430_REV_ES2_0 || + omap_rev() == OMAP4430_REV_ES2_1 || + omap_rev() == OMAP4430_REV_ES2_2) + return OMAPDSS_VER_OMAP4430_ES2; + else if (cpu_is_omap44xx()) + return OMAPDSS_VER_OMAP4; + else if (soc_is_omap54xx()) + return OMAPDSS_VER_OMAP5; + else if (soc_is_am43xx()) + return OMAPDSS_VER_AM43xx; + else if (soc_is_dra7xx()) + return OMAPDSS_VER_DRA7xx; + else + return OMAPDSS_VER_UNKNOWN; +} + +static int __init omapdss_init_fbdev(void) +{ + static struct omap_dss_board_info board_data = { + .dsi_enable_pads = omap_dsi_enable_pads, + .dsi_disable_pads = omap_dsi_disable_pads, + }; + struct device_node *node; + int r; + + board_data.version = omap_display_get_version(); + if (board_data.version == OMAPDSS_VER_UNKNOWN) { + pr_err("DSS not supported on this SoC\n"); + return -ENODEV; + } + + omap_display_device.dev.platform_data = &board_data; + + r = platform_device_register(&omap_display_device); + if (r < 0) { + pr_err("Unable to register omapdss device\n"); + return r; + } + + /* create vrfb device */ + r = omap_init_vrfb(); + if (r < 0) { + pr_err("Unable to register omapvrfb device\n"); + return r; + } + + /* create FB device */ + r = omap_init_fb(); + if (r < 0) { + pr_err("Unable to register omapfb device\n"); + return r; + } + + /* create V4L2 display device */ + r = omap_init_vout(); + if (r < 0) { + pr_err("Unable to register omap_vout device\n"); + return r; + } + + /* add DSI info for omap4 */ + node = of_find_node_by_name(NULL, "omap4_padconf_global"); + if (node) + omap4_dsi_mux_syscon = syscon_node_to_regmap(node); + of_node_put(node); + + return 0; +} + +static const char * const omapdss_compat_names[] __initconst = { + "ti,omap2-dss", + "ti,omap3-dss", + "ti,omap4-dss", + "ti,omap5-dss", + "ti,dra7-dss", +}; + +static struct device_node * __init omapdss_find_dss_of_node(void) +{ + struct device_node *node; + int i; + + for (i = 0; i < ARRAY_SIZE(omapdss_compat_names); ++i) { + node = of_find_compatible_node(NULL, NULL, + omapdss_compat_names[i]); + if (node) + return node; + } + + return NULL; +} + +static int __init omapdss_init_of(void) +{ + int r; + struct device_node *node; + struct platform_device *pdev; + + /* only create dss helper devices if dss is enabled in the .dts */ + + node = omapdss_find_dss_of_node(); + if (!node) + return 0; + + if (!of_device_is_available(node)) { + of_node_put(node); + return 0; + } + + pdev = of_find_device_by_node(node); + + if (!pdev) { + pr_err("Unable to find DSS platform device\n"); + of_node_put(node); + return -ENODEV; + } + + r = of_platform_populate(node, NULL, NULL, &pdev->dev); + put_device(&pdev->dev); + of_node_put(node); + if (r) { + pr_err("Unable to populate DSS submodule devices\n"); + return r; + } + + return omapdss_init_fbdev(); +} +omap_device_initcall(omapdss_init_of); +#endif /* CONFIG_FB_OMAP2 */ + +static void dispc_disable_outputs(void) +{ + u32 v, irq_mask = 0; + bool lcd_en, digit_en, lcd2_en = false, lcd3_en = false; + int i; + struct omap_dss_dispc_dev_attr *da; + struct omap_hwmod *oh; + + oh = omap_hwmod_lookup("dss_dispc"); + if (!oh) { + WARN(1, "display: could not disable outputs during reset - could not find dss_dispc hwmod\n"); + return; + } + + if (!oh->dev_attr) { + pr_err("display: could not disable outputs during reset due to missing dev_attr\n"); + return; + } + + da = (struct omap_dss_dispc_dev_attr *)oh->dev_attr; + + /* store value of LCDENABLE and DIGITENABLE bits */ + v = omap_hwmod_read(oh, DISPC_CONTROL); + lcd_en = v & LCD_EN_MASK; + digit_en = v & DIGIT_EN_MASK; + + /* store value of LCDENABLE for LCD2 */ + if (da->manager_count > 2) { + v = omap_hwmod_read(oh, DISPC_CONTROL2); + lcd2_en = v & LCD_EN_MASK; + } + + /* store value of LCDENABLE for LCD3 */ + if (da->manager_count > 3) { + v = omap_hwmod_read(oh, DISPC_CONTROL3); + lcd3_en = v & LCD_EN_MASK; + } + + if (!(lcd_en | digit_en | lcd2_en | lcd3_en)) + return; /* no managers currently enabled */ + + /* + * If any manager was enabled, we need to disable it before + * DSS clocks are disabled or DISPC module is reset + */ + if (lcd_en) + irq_mask |= 1 << FRAMEDONE_IRQ_SHIFT; + + if (digit_en) { + if (da->has_framedonetv_irq) { + irq_mask |= 1 << FRAMEDONETV_IRQ_SHIFT; + } else { + irq_mask |= 1 << EVSYNC_EVEN_IRQ_SHIFT | + 1 << EVSYNC_ODD_IRQ_SHIFT; + } + } + + if (lcd2_en) + irq_mask |= 1 << FRAMEDONE2_IRQ_SHIFT; + if (lcd3_en) + irq_mask |= 1 << FRAMEDONE3_IRQ_SHIFT; + + /* + * clear any previous FRAMEDONE, FRAMEDONETV, + * EVSYNC_EVEN/ODD, FRAMEDONE2 or FRAMEDONE3 interrupts + */ + omap_hwmod_write(irq_mask, oh, DISPC_IRQSTATUS); + + /* disable LCD and TV managers */ + v = omap_hwmod_read(oh, DISPC_CONTROL); + v &= ~(LCD_EN_MASK | DIGIT_EN_MASK); + omap_hwmod_write(v, oh, DISPC_CONTROL); + + /* disable LCD2 manager */ + if (da->manager_count > 2) { + v = omap_hwmod_read(oh, DISPC_CONTROL2); + v &= ~LCD_EN_MASK; + omap_hwmod_write(v, oh, DISPC_CONTROL2); + } + + /* disable LCD3 manager */ + if (da->manager_count > 3) { + v = omap_hwmod_read(oh, DISPC_CONTROL3); + v &= ~LCD_EN_MASK; + omap_hwmod_write(v, oh, DISPC_CONTROL3); + } + + i = 0; + while ((omap_hwmod_read(oh, DISPC_IRQSTATUS) & irq_mask) != + irq_mask) { + i++; + if (i > FRAMEDONE_IRQ_TIMEOUT) { + pr_err("didn't get FRAMEDONE1/2/3 or TV interrupt\n"); + break; + } + mdelay(1); + } +} + +int omap_dss_reset(struct omap_hwmod *oh) +{ + struct omap_hwmod_opt_clk *oc; + int c = 0; + int i, r; + + if (!(oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS)) { + pr_err("dss_core: hwmod data doesn't contain reset data\n"); + return -EINVAL; + } + + for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) + clk_prepare_enable(oc->_clk); + + dispc_disable_outputs(); + + /* clear SDI registers */ + if (cpu_is_omap3430()) { + omap_hwmod_write(0x0, oh, DSS_SDI_CONTROL); + omap_hwmod_write(0x0, oh, DSS_PLL_CONTROL); + } + + /* + * clear DSS_CONTROL register to switch DSS clock sources to + * PRCM clock, if any + */ + omap_hwmod_write(0x0, oh, DSS_CONTROL); + + omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + + if (c == MAX_MODULE_SOFTRESET_WAIT) + pr_warn("dss_core: waiting for reset to finish failed\n"); + else + pr_debug("dss_core: softreset done\n"); + + for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) + clk_disable_unprepare(oc->_clk); + + r = (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT : 0; + + return r; +} diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h new file mode 100644 index 000000000..22ffca68f --- /dev/null +++ b/arch/arm/mach-omap2/display.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * display.h - OMAP2+ integration-specific DSS header + * + * Copyright (C) 2011 Texas Instruments, Inc. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_DISPLAY_H +#define __ARCH_ARM_MACH_OMAP2_DISPLAY_H + +#include <linux/kernel.h> + +struct omap_dss_dispc_dev_attr { + u8 manager_count; + bool has_framedonetv_irq; +}; + +int omap_init_vrfb(void); +int omap_init_fb(void); +int omap_init_vout(void); + +#endif diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c new file mode 100644 index 000000000..830cd4e7e --- /dev/null +++ b/arch/arm/mach-omap2/dma.c @@ -0,0 +1,206 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2+ DMA driver + * + * Copyright (C) 2003 - 2008 Nokia Corporation + * Author: Juha Yrjölä <juha.yrjola@nokia.com> + * DMA channel linking for 1610 by Samuel Ortiz <samuel.ortiz@nokia.com> + * Graphics DMA and LCD DMA graphics tranformations + * by Imre Deak <imre.deak@nokia.com> + * OMAP2/3 support Copyright (C) 2004-2007 Texas Instruments, Inc. + * Some functions based on earlier dma-omap.c Copyright (C) 2001 RidgeRun, Inc. + * + * Copyright (C) 2009 Texas Instruments + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ + * Converted DMA library into platform driver + * - G, Manjunath Kondaiah <manjugk@ti.com> + */ + +#include <linux/err.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <linux/dmaengine.h> +#include <linux/of.h> +#include <linux/omap-dma.h> + +#include "soc.h" +#include "common.h" + +static const struct omap_dma_reg reg_map[] = { + [REVISION] = { 0x0000, 0x00, OMAP_DMA_REG_32BIT }, + [GCR] = { 0x0078, 0x00, OMAP_DMA_REG_32BIT }, + [IRQSTATUS_L0] = { 0x0008, 0x00, OMAP_DMA_REG_32BIT }, + [IRQSTATUS_L1] = { 0x000c, 0x00, OMAP_DMA_REG_32BIT }, + [IRQSTATUS_L2] = { 0x0010, 0x00, OMAP_DMA_REG_32BIT }, + [IRQSTATUS_L3] = { 0x0014, 0x00, OMAP_DMA_REG_32BIT }, + [IRQENABLE_L0] = { 0x0018, 0x00, OMAP_DMA_REG_32BIT }, + [IRQENABLE_L1] = { 0x001c, 0x00, OMAP_DMA_REG_32BIT }, + [IRQENABLE_L2] = { 0x0020, 0x00, OMAP_DMA_REG_32BIT }, + [IRQENABLE_L3] = { 0x0024, 0x00, OMAP_DMA_REG_32BIT }, + [SYSSTATUS] = { 0x0028, 0x00, OMAP_DMA_REG_32BIT }, + [OCP_SYSCONFIG] = { 0x002c, 0x00, OMAP_DMA_REG_32BIT }, + [CAPS_0] = { 0x0064, 0x00, OMAP_DMA_REG_32BIT }, + [CAPS_2] = { 0x006c, 0x00, OMAP_DMA_REG_32BIT }, + [CAPS_3] = { 0x0070, 0x00, OMAP_DMA_REG_32BIT }, + [CAPS_4] = { 0x0074, 0x00, OMAP_DMA_REG_32BIT }, + + /* Common register offsets */ + [CCR] = { 0x0080, 0x60, OMAP_DMA_REG_32BIT }, + [CLNK_CTRL] = { 0x0084, 0x60, OMAP_DMA_REG_32BIT }, + [CICR] = { 0x0088, 0x60, OMAP_DMA_REG_32BIT }, + [CSR] = { 0x008c, 0x60, OMAP_DMA_REG_32BIT }, + [CSDP] = { 0x0090, 0x60, OMAP_DMA_REG_32BIT }, + [CEN] = { 0x0094, 0x60, OMAP_DMA_REG_32BIT }, + [CFN] = { 0x0098, 0x60, OMAP_DMA_REG_32BIT }, + [CSEI] = { 0x00a4, 0x60, OMAP_DMA_REG_32BIT }, + [CSFI] = { 0x00a8, 0x60, OMAP_DMA_REG_32BIT }, + [CDEI] = { 0x00ac, 0x60, OMAP_DMA_REG_32BIT }, + [CDFI] = { 0x00b0, 0x60, OMAP_DMA_REG_32BIT }, + [CSAC] = { 0x00b4, 0x60, OMAP_DMA_REG_32BIT }, + [CDAC] = { 0x00b8, 0x60, OMAP_DMA_REG_32BIT }, + + /* Channel specific register offsets */ + [CSSA] = { 0x009c, 0x60, OMAP_DMA_REG_32BIT }, + [CDSA] = { 0x00a0, 0x60, OMAP_DMA_REG_32BIT }, + [CCEN] = { 0x00bc, 0x60, OMAP_DMA_REG_32BIT }, + [CCFN] = { 0x00c0, 0x60, OMAP_DMA_REG_32BIT }, + [COLOR] = { 0x00c4, 0x60, OMAP_DMA_REG_32BIT }, + + /* OMAP4 specific registers */ + [CDP] = { 0x00d0, 0x60, OMAP_DMA_REG_32BIT }, + [CNDP] = { 0x00d4, 0x60, OMAP_DMA_REG_32BIT }, + [CCDN] = { 0x00d8, 0x60, OMAP_DMA_REG_32BIT }, +}; + +static unsigned configure_dma_errata(void) +{ + unsigned errata = 0; + + /* + * Errata applicable for OMAP2430ES1.0 and all omap2420 + * + * I. + * Erratum ID: Not Available + * Inter Frame DMA buffering issue DMA will wrongly + * buffer elements if packing and bursting is enabled. This might + * result in data gets stalled in FIFO at the end of the block. + * Workaround: DMA channels must have BUFFERING_DISABLED bit set to + * guarantee no data will stay in the DMA FIFO in case inter frame + * buffering occurs + * + * II. + * Erratum ID: Not Available + * DMA may hang when several channels are used in parallel + * In the following configuration, DMA channel hanging can occur: + * a. Channel i, hardware synchronized, is enabled + * b. Another channel (Channel x), software synchronized, is enabled. + * c. Channel i is disabled before end of transfer + * d. Channel i is reenabled. + * e. Steps 1 to 4 are repeated a certain number of times. + * f. A third channel (Channel y), software synchronized, is enabled. + * Channel x and Channel y may hang immediately after step 'f'. + * Workaround: + * For any channel used - make sure NextLCH_ID is set to the value j. + */ + if (cpu_is_omap2420() || (cpu_is_omap2430() && + (omap_type() == OMAP2430_REV_ES1_0))) { + + SET_DMA_ERRATA(DMA_ERRATA_IFRAME_BUFFERING); + SET_DMA_ERRATA(DMA_ERRATA_PARALLEL_CHANNELS); + } + + /* + * Erratum ID: i378: OMAP2+: sDMA Channel is not disabled + * after a transaction error. + * Workaround: SW should explicitely disable the channel. + */ + if (cpu_class_is_omap2()) + SET_DMA_ERRATA(DMA_ERRATA_i378); + + /* + * Erratum ID: i541: sDMA FIFO draining does not finish + * If sDMA channel is disabled on the fly, sDMA enters standby even + * through FIFO Drain is still in progress + * Workaround: Put sDMA in NoStandby more before a logical channel is + * disabled, then put it back to SmartStandby right after the channel + * finishes FIFO draining. + */ + if (cpu_is_omap34xx()) + SET_DMA_ERRATA(DMA_ERRATA_i541); + + /* + * Erratum ID: i88 : Special programming model needed to disable DMA + * before end of block. + * Workaround: software must ensure that the DMA is configured in No + * Standby mode(DMAx_OCP_SYSCONFIG.MIDLEMODE = "01") + */ + if (omap_type() == OMAP3430_REV_ES1_0) + SET_DMA_ERRATA(DMA_ERRATA_i88); + + /* + * Erratum 3.2/3.3: sometimes 0 is returned if CSAC/CDAC is + * read before the DMA controller finished disabling the channel. + */ + SET_DMA_ERRATA(DMA_ERRATA_3_3); + + /* + * Erratum ID: Not Available + * A bug in ROM code leaves IRQ status for channels 0 and 1 uncleared + * after secure sram context save and restore. + * Work around: Hence we need to manually clear those IRQs to avoid + * spurious interrupts. This affects only secure devices. + */ + if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP)) + SET_DMA_ERRATA(DMA_ROMCODE_BUG); + + return errata; +} + +static const struct dma_slave_map omap24xx_sdma_dt_map[] = { + /* external DMA requests when tusb6010 is used */ + { "musb-hdrc.1.auto", "dmareq0", SDMA_FILTER_PARAM(2) }, + { "musb-hdrc.1.auto", "dmareq1", SDMA_FILTER_PARAM(3) }, + { "musb-hdrc.1.auto", "dmareq2", SDMA_FILTER_PARAM(14) }, /* OMAP2420 only */ + { "musb-hdrc.1.auto", "dmareq3", SDMA_FILTER_PARAM(15) }, /* OMAP2420 only */ + { "musb-hdrc.1.auto", "dmareq4", SDMA_FILTER_PARAM(16) }, /* OMAP2420 only */ + { "musb-hdrc.1.auto", "dmareq5", SDMA_FILTER_PARAM(64) }, /* OMAP2420 only */ +}; + +static struct omap_dma_dev_attr dma_attr = { + .dev_caps = RESERVE_CHANNEL | DMA_LINKED_LCH | GLOBAL_PRIORITY | + IS_CSSA_32 | IS_CDSA_32, + .lch_count = 32, +}; + +struct omap_system_dma_plat_info dma_plat_info = { + .reg_map = reg_map, + .channel_stride = 0x60, + .dma_attr = &dma_attr, +}; + +/* One time initializations */ +static int __init omap2_system_dma_init(void) +{ + dma_plat_info.errata = configure_dma_errata(); + + if (soc_is_omap24xx()) { + /* DMA slave map for drivers not yet converted to DT */ + dma_plat_info.slave_map = omap24xx_sdma_dt_map; + dma_plat_info.slavecnt = ARRAY_SIZE(omap24xx_sdma_dt_map); + } + + if (!soc_is_omap242x()) + dma_attr.dev_caps |= IS_RW_PRIORITY; + + if (soc_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP)) + dma_attr.dev_caps |= HS_CHANNELS_RESERVED; + + return 0; +} +omap_arch_initcall(omap2_system_dma_init); diff --git a/arch/arm/mach-omap2/fb.c b/arch/arm/mach-omap2/fb.c new file mode 100644 index 000000000..0f8c8efe3 --- /dev/null +++ b/arch/arm/mach-omap2/fb.c @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Framebuffer device registration for TI OMAP platforms + * + * Copyright (C) 2006 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/memblock.h> +#include <linux/io.h> +#include <linux/omapfb.h> +#include <linux/dma-mapping.h> + +#include <asm/mach/map.h> + +#include "soc.h" +#include "display.h" + +#ifdef CONFIG_OMAP2_VRFB + +/* + * The first memory resource is the register region for VRFB, + * the rest are VRFB virtual memory areas for each VRFB context. + */ + +static const struct resource omap2_vrfb_resources[] = { + DEFINE_RES_MEM_NAMED(0x68008000u, 0x40, "vrfb-regs"), + DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"), + DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"), + DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"), + DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"), +}; + +static const struct resource omap3_vrfb_resources[] = { + DEFINE_RES_MEM_NAMED(0x6C000180u, 0xc0, "vrfb-regs"), + DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"), + DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"), + DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"), + DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"), + DEFINE_RES_MEM_NAMED(0xe0000000u, 0x4000000, "vrfb-area-4"), + DEFINE_RES_MEM_NAMED(0xe4000000u, 0x4000000, "vrfb-area-5"), + DEFINE_RES_MEM_NAMED(0xe8000000u, 0x4000000, "vrfb-area-6"), + DEFINE_RES_MEM_NAMED(0xec000000u, 0x4000000, "vrfb-area-7"), + DEFINE_RES_MEM_NAMED(0xf0000000u, 0x4000000, "vrfb-area-8"), + DEFINE_RES_MEM_NAMED(0xf4000000u, 0x4000000, "vrfb-area-9"), + DEFINE_RES_MEM_NAMED(0xf8000000u, 0x4000000, "vrfb-area-10"), + DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11"), +}; + +int __init omap_init_vrfb(void) +{ + struct platform_device *pdev; + const struct resource *res; + unsigned int num_res; + + if (cpu_is_omap24xx()) { + res = omap2_vrfb_resources; + num_res = ARRAY_SIZE(omap2_vrfb_resources); + } else if (cpu_is_omap34xx()) { + res = omap3_vrfb_resources; + num_res = ARRAY_SIZE(omap3_vrfb_resources); + } else { + return 0; + } + + pdev = platform_device_register_resndata(NULL, "omapvrfb", -1, + res, num_res, NULL, 0); + + return PTR_ERR_OR_ZERO(pdev); +} +#else +int __init omap_init_vrfb(void) { return 0; } +#endif + +#if IS_ENABLED(CONFIG_FB_OMAP2) + +static u64 omap_fb_dma_mask = ~(u32)0; +static struct omapfb_platform_data omapfb_config; + +static struct platform_device omap_fb_device = { + .name = "omapfb", + .id = -1, + .dev = { + .dma_mask = &omap_fb_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &omapfb_config, + }, + .num_resources = 0, +}; + +int __init omap_init_fb(void) +{ + return platform_device_register(&omap_fb_device); +} +#else +int __init omap_init_fb(void) { return 0; } +#endif diff --git a/arch/arm/mach-omap2/gpmc.h b/arch/arm/mach-omap2/gpmc.h new file mode 100644 index 000000000..e060f1b5c --- /dev/null +++ b/arch/arm/mach-omap2/gpmc.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * General-Purpose Memory Controller for OMAP2 + * + * Copyright (C) 2005-2006 Nokia Corporation + * + * Do not include this file in any new code, this will get removed + * once omap3 boots in device tree only mode. + */ +#include <linux/omap-gpmc.h> diff --git a/arch/arm/mach-omap2/hdq1w.c b/arch/arm/mach-omap2/hdq1w.c new file mode 100644 index 000000000..c0127f2c5 --- /dev/null +++ b/arch/arm/mach-omap2/hdq1w.c @@ -0,0 +1,64 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * IP block integration code for the HDQ1W/1-wire IP block + * + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + * + * Based on the I2C reset code in arch/arm/mach-omap2/i2c.c by + * Avinash.H.M <avinashhm@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/platform_device.h> + +#include "soc.h" +#include "omap_hwmod.h" +#include "omap_device.h" +#include "hdq1w.h" + +#include "prm.h" +#include "common.h" + +/** + * omap_hdq1w_reset - reset the OMAP HDQ1W module + * @oh: struct omap_hwmod * + * + * OCP soft reset the HDQ1W IP block. Section 20.6.1.4 "HDQ1W/1-Wire + * Software Reset" of the OMAP34xx Technical Reference Manual Revision + * ZR (SWPU223R) does not include the rather important fact that, for + * the reset to succeed, the HDQ1W module's internal clock gate must be + * programmed to allow the clock to propagate to the rest of the + * module. In this sense, it's rather similar to the I2C custom reset + * function. Returns 0. + */ +int omap_hdq1w_reset(struct omap_hwmod *oh) +{ + u32 v; + int c = 0; + + /* Write to the SOFTRESET bit */ + omap_hwmod_softreset(oh); + + /* Enable the module's internal clocks */ + v = omap_hwmod_read(oh, HDQ_CTRL_STATUS_OFFSET); + v |= 1 << HDQ_CTRL_STATUS_CLOCKENABLE_SHIFT; + omap_hwmod_write(v, oh, HDQ_CTRL_STATUS_OFFSET); + + /* Poll on RESETDONE bit */ + omap_test_timeout((omap_hwmod_read(oh, + oh->class->sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + + if (c == MAX_MODULE_SOFTRESET_WAIT) + pr_warn("%s: %s: softreset failed (waited %d usec)\n", + __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); + else + pr_debug("%s: %s: softreset in %d usec\n", __func__, + oh->name, c); + + return 0; +} diff --git a/arch/arm/mach-omap2/hdq1w.h b/arch/arm/mach-omap2/hdq1w.h new file mode 100644 index 000000000..2e2f1e88a --- /dev/null +++ b/arch/arm/mach-omap2/hdq1w.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Shared macros and function prototypes for the HDQ1W/1-wire IP block + * + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + */ +#ifndef ARCH_ARM_MACH_OMAP2_HDQ1W_H +#define ARCH_ARM_MACH_OMAP2_HDQ1W_H + +#include "omap_hwmod.h" + +/* + * XXX A future cleanup patch should modify + * drivers/w1/masters/omap_hdq.c to use these macros + */ +#define HDQ_CTRL_STATUS_OFFSET 0x0c +#define HDQ_CTRL_STATUS_CLOCKENABLE_SHIFT 5 + + +extern int omap_hdq1w_reset(struct omap_hwmod *oh); + +#endif diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c new file mode 100644 index 000000000..3b4b9514f --- /dev/null +++ b/arch/arm/mach-omap2/i2c.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Helper module for board specific I2C bus registration + * + * Copyright (C) 2009 Nokia Corporation. + */ + +#include "soc.h" +#include "omap_hwmod.h" +#include "omap_device.h" + +#include "prm.h" +#include "common.h" +#include "i2c.h" + +/* In register I2C_CON, Bit 15 is the I2C enable bit */ +#define I2C_EN BIT(15) +#define OMAP2_I2C_CON_OFFSET 0x24 +#define OMAP4_I2C_CON_OFFSET 0xA4 + +#define MAX_OMAP_I2C_HWMOD_NAME_LEN 16 + +/** + * omap_i2c_reset - reset the omap i2c module. + * @oh: struct omap_hwmod * + * + * The i2c moudle in omap2, omap3 had a special sequence to reset. The + * sequence is: + * - Disable the I2C. + * - Write to SOFTRESET bit. + * - Enable the I2C. + * - Poll on the RESETDONE bit. + * The sequence is implemented in below function. This is called for 2420, + * 2430 and omap3. + */ +int omap_i2c_reset(struct omap_hwmod *oh) +{ + u32 v; + u16 i2c_con; + int c = 0; + + if (soc_is_omap24xx() || soc_is_omap34xx() || soc_is_am35xx()) + i2c_con = OMAP2_I2C_CON_OFFSET; + else + i2c_con = OMAP4_I2C_CON_OFFSET; + + /* Disable I2C */ + v = omap_hwmod_read(oh, i2c_con); + v &= ~I2C_EN; + omap_hwmod_write(v, oh, i2c_con); + + /* Write to the SOFTRESET bit */ + omap_hwmod_softreset(oh); + + /* Enable I2C */ + v = omap_hwmod_read(oh, i2c_con); + v |= I2C_EN; + omap_hwmod_write(v, oh, i2c_con); + + /* Poll on RESETDONE bit */ + omap_test_timeout((omap_hwmod_read(oh, + oh->class->sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + + if (c == MAX_MODULE_SOFTRESET_WAIT) + pr_warn("%s: %s: softreset failed (waited %d usec)\n", + __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); + else + pr_debug("%s: %s: softreset in %d usec\n", __func__, + oh->name, c); + + return 0; +} diff --git a/arch/arm/mach-omap2/i2c.h b/arch/arm/mach-omap2/i2c.h new file mode 100644 index 000000000..198516927 --- /dev/null +++ b/arch/arm/mach-omap2/i2c.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Helper module for board specific I2C bus registration + * + * Copyright (C) 2009 Nokia Corporation. + */ + +#ifndef __MACH_OMAP2_I2C_H +#define __MACH_OMAP2_I2C_H + +struct omap_hwmod; + +int omap_i2c_reset(struct omap_hwmod *oh); + +#endif /* __MACH_OMAP2_I2C_H */ diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c new file mode 100644 index 000000000..cf2bfb447 --- /dev/null +++ b/arch/arm/mach-omap2/id.c @@ -0,0 +1,811 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/id.c + * + * OMAP2 CPU identification code + * + * Copyright (C) 2005 Nokia Corporation + * Written by Tony Lindgren <tony@atomide.com> + * + * Copyright (C) 2009-11 Texas Instruments + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/random.h> +#include <linux/slab.h> +#include <linux/string.h> + +#ifdef CONFIG_SOC_BUS +#include <linux/sys_soc.h> +#endif + +#include <asm/cputype.h> + +#include "common.h" + +#include "id.h" + +#include "soc.h" +#include "control.h" + +#define OMAP4_SILICON_TYPE_STANDARD 0x01 +#define OMAP4_SILICON_TYPE_PERFORMANCE 0x02 + +#define OMAP_SOC_MAX_NAME_LENGTH 16 + +static unsigned int omap_revision; +static char soc_name[OMAP_SOC_MAX_NAME_LENGTH]; +static char soc_rev[OMAP_SOC_MAX_NAME_LENGTH]; +u32 omap_features; + +unsigned int omap_rev(void) +{ + return omap_revision; +} +EXPORT_SYMBOL(omap_rev); + +int omap_type(void) +{ + static u32 val = OMAP2_DEVICETYPE_MASK; + + if (val < OMAP2_DEVICETYPE_MASK) + return val; + + if (soc_is_omap24xx()) { + val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS); + } else if (soc_is_ti81xx()) { + val = omap_ctrl_readl(TI81XX_CONTROL_STATUS); + } else if (soc_is_am33xx() || soc_is_am43xx()) { + val = omap_ctrl_readl(AM33XX_CONTROL_STATUS); + } else if (soc_is_omap34xx()) { + val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS); + } else if (soc_is_omap44xx()) { + val = omap_ctrl_readl(OMAP4_CTRL_MODULE_CORE_STATUS); + } else if (soc_is_omap54xx() || soc_is_dra7xx()) { + val = omap_ctrl_readl(OMAP5XXX_CONTROL_STATUS); + val &= OMAP5_DEVICETYPE_MASK; + val >>= 6; + goto out; + } else { + pr_err("Cannot detect omap type!\n"); + goto out; + } + + val &= OMAP2_DEVICETYPE_MASK; + val >>= 8; + +out: + return val; +} +EXPORT_SYMBOL(omap_type); + + +/*----------------------------------------------------------------------------*/ + +#define OMAP_TAP_IDCODE 0x0204 +#define OMAP_TAP_DIE_ID_0 0x0218 +#define OMAP_TAP_DIE_ID_1 0x021C +#define OMAP_TAP_DIE_ID_2 0x0220 +#define OMAP_TAP_DIE_ID_3 0x0224 + +#define OMAP_TAP_DIE_ID_44XX_0 0x0200 +#define OMAP_TAP_DIE_ID_44XX_1 0x0208 +#define OMAP_TAP_DIE_ID_44XX_2 0x020c +#define OMAP_TAP_DIE_ID_44XX_3 0x0210 + +#define read_tap_reg(reg) readl_relaxed(tap_base + (reg)) + +struct omap_id { + u16 hawkeye; /* Silicon type (Hawkeye id) */ + u8 dev; /* Device type from production_id reg */ + u32 type; /* Combined type id copied to omap_revision */ +}; + +/* Register values to detect the OMAP version */ +static struct omap_id omap_ids[] __initdata = { + { .hawkeye = 0xb5d9, .dev = 0x0, .type = 0x24200024 }, + { .hawkeye = 0xb5d9, .dev = 0x1, .type = 0x24201024 }, + { .hawkeye = 0xb5d9, .dev = 0x2, .type = 0x24202024 }, + { .hawkeye = 0xb5d9, .dev = 0x4, .type = 0x24220024 }, + { .hawkeye = 0xb5d9, .dev = 0x8, .type = 0x24230024 }, + { .hawkeye = 0xb68a, .dev = 0x0, .type = 0x24300024 }, +}; + +static void __iomem *tap_base; +static u16 tap_prod_id; + +static void omap_get_die_id(struct omap_die_id *odi) +{ + if (soc_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx()) { + odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_0); + odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_1); + odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_2); + odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_3); + + return; + } + odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0); + odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_1); + odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_2); + odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3); +} + +static int __init omap_feed_randpool(void) +{ + struct omap_die_id odi; + + /* Throw the die ID into the entropy pool at boot */ + omap_get_die_id(&odi); + add_device_randomness(&odi, sizeof(odi)); + return 0; +} +omap_device_initcall(omap_feed_randpool); + +void __init omap2xxx_check_revision(void) +{ + int i, j; + u32 idcode, prod_id; + u16 hawkeye; + u8 dev_type, rev; + struct omap_die_id odi; + + idcode = read_tap_reg(OMAP_TAP_IDCODE); + prod_id = read_tap_reg(tap_prod_id); + hawkeye = (idcode >> 12) & 0xffff; + rev = (idcode >> 28) & 0x0f; + dev_type = (prod_id >> 16) & 0x0f; + omap_get_die_id(&odi); + + pr_debug("OMAP_TAP_IDCODE 0x%08x REV %i HAWKEYE 0x%04x MANF %03x\n", + idcode, rev, hawkeye, (idcode >> 1) & 0x7ff); + pr_debug("OMAP_TAP_DIE_ID_0: 0x%08x\n", odi.id_0); + pr_debug("OMAP_TAP_DIE_ID_1: 0x%08x DEV_REV: %i\n", + odi.id_1, (odi.id_1 >> 28) & 0xf); + pr_debug("OMAP_TAP_DIE_ID_2: 0x%08x\n", odi.id_2); + pr_debug("OMAP_TAP_DIE_ID_3: 0x%08x\n", odi.id_3); + pr_debug("OMAP_TAP_PROD_ID_0: 0x%08x DEV_TYPE: %i\n", + prod_id, dev_type); + + /* Check hawkeye ids */ + for (i = 0; i < ARRAY_SIZE(omap_ids); i++) { + if (hawkeye == omap_ids[i].hawkeye) + break; + } + + if (i == ARRAY_SIZE(omap_ids)) { + printk(KERN_ERR "Unknown OMAP CPU id\n"); + return; + } + + for (j = i; j < ARRAY_SIZE(omap_ids); j++) { + if (dev_type == omap_ids[j].dev) + break; + } + + if (j == ARRAY_SIZE(omap_ids)) { + pr_err("Unknown OMAP device type. Handling it as OMAP%04x\n", + omap_ids[i].type >> 16); + j = i; + } + + sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); + sprintf(soc_rev, "ES%x", (omap_rev() >> 12) & 0xf); + + pr_info("%s", soc_name); + if ((omap_rev() >> 8) & 0x0f) + pr_cont("%s", soc_rev); + pr_cont("\n"); +} + +#define OMAP3_SHOW_FEATURE(feat) \ + if (omap3_has_ ##feat()) \ + n += scnprintf(buf + n, sizeof(buf) - n, #feat " "); + +static void __init omap3_cpuinfo(void) +{ + const char *cpu_name; + char buf[64]; + int n = 0; + + memset(buf, 0, sizeof(buf)); + + /* + * OMAP3430 and OMAP3530 are assumed to be same. + * + * OMAP3525, OMAP3515 and OMAP3503 can be detected only based + * on available features. Upon detection, update the CPU id + * and CPU class bits. + */ + if (soc_is_omap3630()) { + if (omap3_has_iva() && omap3_has_sgx()) { + cpu_name = (omap3_has_isp()) ? "OMAP3630/DM3730" : "OMAP3621"; + } else if (omap3_has_iva()) { + cpu_name = "DM3725"; + } else if (omap3_has_sgx()) { + cpu_name = "OMAP3615/AM3715"; + } else { + cpu_name = (omap3_has_isp()) ? "AM3703" : "OMAP3611"; + } + } else if (soc_is_am35xx()) { + cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505"; + } else if (soc_is_ti816x()) { + cpu_name = "TI816X"; + } else if (soc_is_am335x()) { + cpu_name = "AM335X"; + } else if (soc_is_am437x()) { + cpu_name = "AM437x"; + } else if (soc_is_ti814x()) { + cpu_name = "TI814X"; + } else if (omap3_has_iva() && omap3_has_sgx()) { + /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */ + cpu_name = "OMAP3430/3530"; + } else if (omap3_has_iva()) { + cpu_name = "OMAP3525"; + } else if (omap3_has_sgx()) { + cpu_name = "OMAP3515"; + } else { + cpu_name = "OMAP3503"; + } + + strscpy(soc_name, cpu_name); + + /* Print verbose information */ + n += scnprintf(buf, sizeof(buf) - n, "%s %s (", soc_name, soc_rev); + + OMAP3_SHOW_FEATURE(l2cache); + OMAP3_SHOW_FEATURE(iva); + OMAP3_SHOW_FEATURE(sgx); + OMAP3_SHOW_FEATURE(neon); + OMAP3_SHOW_FEATURE(isp); + OMAP3_SHOW_FEATURE(192mhz_clk); + if (*(buf + n - 1) == ' ') + n--; + n += scnprintf(buf + n, sizeof(buf) - n, ")\n"); + pr_info("%s", buf); +} + +#define OMAP3_CHECK_FEATURE(status,feat) \ + if (((status & OMAP3_ ##feat## _MASK) \ + >> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \ + omap_features |= OMAP3_HAS_ ##feat; \ + } + +void __init omap3xxx_check_features(void) +{ + u32 status; + + omap_features = 0; + + status = omap_ctrl_readl(OMAP3_CONTROL_OMAP_STATUS); + + OMAP3_CHECK_FEATURE(status, L2CACHE); + OMAP3_CHECK_FEATURE(status, IVA); + OMAP3_CHECK_FEATURE(status, SGX); + OMAP3_CHECK_FEATURE(status, NEON); + OMAP3_CHECK_FEATURE(status, ISP); + if (soc_is_omap3630()) + omap_features |= OMAP3_HAS_192MHZ_CLK; + if (soc_is_omap3430() || soc_is_omap3630()) + omap_features |= OMAP3_HAS_IO_WAKEUP; + if (soc_is_omap3630() || omap_rev() == OMAP3430_REV_ES3_1 || + omap_rev() == OMAP3430_REV_ES3_1_2) + omap_features |= OMAP3_HAS_IO_CHAIN_CTRL; + + omap_features |= OMAP3_HAS_SDRC; + + /* + * am35x fixups: + * - The am35x Chip ID register has bits 12, 7:5, and 3:2 marked as + * reserved and therefore return 0 when read. Unfortunately, + * OMAP3_CHECK_FEATURE() will interpret some of those zeroes to + * mean that a feature is present even though it isn't so clear + * the incorrectly set feature bits. + */ + if (soc_is_am35xx()) + omap_features &= ~(OMAP3_HAS_IVA | OMAP3_HAS_ISP); + + /* + * TODO: Get additional info (where applicable) + * e.g. Size of L2 cache. + */ + + omap3_cpuinfo(); +} + +void __init omap4xxx_check_features(void) +{ + u32 si_type; + + si_type = + (read_tap_reg(OMAP4_CTRL_MODULE_CORE_STD_FUSE_PROD_ID_1) >> 16) & 0x03; + + if (si_type == OMAP4_SILICON_TYPE_PERFORMANCE) + omap_features = OMAP4_HAS_PERF_SILICON; +} + +void __init ti81xx_check_features(void) +{ + omap_features = OMAP3_HAS_NEON; + omap3_cpuinfo(); +} + +void __init am33xx_check_features(void) +{ + u32 status; + + omap_features = OMAP3_HAS_NEON; + + status = omap_ctrl_readl(AM33XX_DEV_FEATURE); + if (status & AM33XX_SGX_MASK) + omap_features |= OMAP3_HAS_SGX; + + omap3_cpuinfo(); +} + +void __init omap3xxx_check_revision(void) +{ + const char *cpu_rev; + u32 cpuid, idcode; + u16 hawkeye; + u8 rev; + + /* + * We cannot access revision registers on ES1.0. + * If the processor type is Cortex-A8 and the revision is 0x0 + * it means its Cortex r0p0 which is 3430 ES1.0. + */ + cpuid = read_cpuid_id(); + if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) { + omap_revision = OMAP3430_REV_ES1_0; + cpu_rev = "1.0"; + return; + } + + /* + * Detection for 34xx ES2.0 and above can be done with just + * hawkeye and rev. See TRM 1.5.2 Device Identification. + * Note that rev does not map directly to our defined processor + * revision numbers as ES1.0 uses value 0. + */ + idcode = read_tap_reg(OMAP_TAP_IDCODE); + hawkeye = (idcode >> 12) & 0xffff; + rev = (idcode >> 28) & 0xff; + + switch (hawkeye) { + case 0xb7ae: + /* Handle 34xx/35xx devices */ + switch (rev) { + case 0: /* Take care of early samples */ + case 1: + omap_revision = OMAP3430_REV_ES2_0; + cpu_rev = "2.0"; + break; + case 2: + omap_revision = OMAP3430_REV_ES2_1; + cpu_rev = "2.1"; + break; + case 3: + omap_revision = OMAP3430_REV_ES3_0; + cpu_rev = "3.0"; + break; + case 4: + omap_revision = OMAP3430_REV_ES3_1; + cpu_rev = "3.1"; + break; + case 7: + default: + /* Use the latest known revision as default */ + omap_revision = OMAP3430_REV_ES3_1_2; + cpu_rev = "3.1.2"; + } + break; + case 0xb868: + /* + * Handle OMAP/AM 3505/3517 devices + * + * Set the device to be OMAP3517 here. Actual device + * is identified later based on the features. + */ + switch (rev) { + case 0: + omap_revision = AM35XX_REV_ES1_0; + cpu_rev = "1.0"; + break; + case 1: + default: + omap_revision = AM35XX_REV_ES1_1; + cpu_rev = "1.1"; + } + break; + case 0xb891: + /* Handle 36xx devices */ + + switch(rev) { + case 0: /* Take care of early samples */ + omap_revision = OMAP3630_REV_ES1_0; + cpu_rev = "1.0"; + break; + case 1: + omap_revision = OMAP3630_REV_ES1_1; + cpu_rev = "1.1"; + break; + case 2: + default: + omap_revision = OMAP3630_REV_ES1_2; + cpu_rev = "1.2"; + } + break; + case 0xb81e: + switch (rev) { + case 0: + omap_revision = TI8168_REV_ES1_0; + cpu_rev = "1.0"; + break; + case 1: + omap_revision = TI8168_REV_ES1_1; + cpu_rev = "1.1"; + break; + case 2: + omap_revision = TI8168_REV_ES2_0; + cpu_rev = "2.0"; + break; + case 3: + default: + omap_revision = TI8168_REV_ES2_1; + cpu_rev = "2.1"; + } + break; + case 0xb944: + switch (rev) { + case 0: + omap_revision = AM335X_REV_ES1_0; + cpu_rev = "1.0"; + break; + case 1: + omap_revision = AM335X_REV_ES2_0; + cpu_rev = "2.0"; + break; + case 2: + default: + omap_revision = AM335X_REV_ES2_1; + cpu_rev = "2.1"; + break; + } + break; + case 0xb98c: + switch (rev) { + case 0: + omap_revision = AM437X_REV_ES1_0; + cpu_rev = "1.0"; + break; + case 1: + omap_revision = AM437X_REV_ES1_1; + cpu_rev = "1.1"; + break; + case 2: + default: + omap_revision = AM437X_REV_ES1_2; + cpu_rev = "1.2"; + break; + } + break; + case 0xb8f2: + case 0xb968: + switch (rev) { + case 0: + case 1: + omap_revision = TI8148_REV_ES1_0; + cpu_rev = "1.0"; + break; + case 2: + omap_revision = TI8148_REV_ES2_0; + cpu_rev = "2.0"; + break; + case 3: + default: + omap_revision = TI8148_REV_ES2_1; + cpu_rev = "2.1"; + break; + } + break; + default: + /* Unknown default to latest silicon rev as default */ + omap_revision = OMAP3630_REV_ES1_2; + cpu_rev = "1.2"; + pr_warn("Warning: unknown chip type: hawkeye %04x, assuming OMAP3630ES1.2\n", + hawkeye); + } + sprintf(soc_rev, "ES%s", cpu_rev); +} + +void __init omap4xxx_check_revision(void) +{ + u32 idcode; + u16 hawkeye; + u8 rev; + + /* + * The IC rev detection is done with hawkeye and rev. + * Note that rev does not map directly to defined processor + * revision numbers as ES1.0 uses value 0. + */ + idcode = read_tap_reg(OMAP_TAP_IDCODE); + hawkeye = (idcode >> 12) & 0xffff; + rev = (idcode >> 28) & 0xf; + + /* + * Few initial 4430 ES2.0 samples IDCODE is same as ES1.0 + * Use ARM register to detect the correct ES version + */ + if (!rev && (hawkeye != 0xb94e) && (hawkeye != 0xb975)) { + idcode = read_cpuid_id(); + rev = (idcode & 0xf) - 1; + } + + switch (hawkeye) { + case 0xb852: + switch (rev) { + case 0: + omap_revision = OMAP4430_REV_ES1_0; + break; + case 1: + default: + omap_revision = OMAP4430_REV_ES2_0; + } + break; + case 0xb95c: + switch (rev) { + case 3: + omap_revision = OMAP4430_REV_ES2_1; + break; + case 4: + omap_revision = OMAP4430_REV_ES2_2; + break; + case 6: + default: + omap_revision = OMAP4430_REV_ES2_3; + } + break; + case 0xb94e: + switch (rev) { + case 0: + omap_revision = OMAP4460_REV_ES1_0; + break; + case 2: + default: + omap_revision = OMAP4460_REV_ES1_1; + break; + } + break; + case 0xb975: + switch (rev) { + case 0: + default: + omap_revision = OMAP4470_REV_ES1_0; + break; + } + break; + default: + /* Unknown default to latest silicon rev as default */ + omap_revision = OMAP4430_REV_ES2_3; + } + + sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); + sprintf(soc_rev, "ES%d.%d", (omap_rev() >> 12) & 0xf, + (omap_rev() >> 8) & 0xf); + pr_info("%s %s\n", soc_name, soc_rev); +} + +void __init omap5xxx_check_revision(void) +{ + u32 idcode; + u16 hawkeye; + u8 rev; + + idcode = read_tap_reg(OMAP_TAP_IDCODE); + hawkeye = (idcode >> 12) & 0xffff; + rev = (idcode >> 28) & 0xff; + switch (hawkeye) { + case 0xb942: + switch (rev) { + case 0: + /* No support for ES1.0 Test chip */ + BUG(); + case 1: + default: + omap_revision = OMAP5430_REV_ES2_0; + } + break; + + case 0xb998: + switch (rev) { + case 0: + /* No support for ES1.0 Test chip */ + BUG(); + case 1: + default: + omap_revision = OMAP5432_REV_ES2_0; + } + break; + + default: + /* Unknown default to latest silicon rev as default*/ + omap_revision = OMAP5430_REV_ES2_0; + } + + sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); + sprintf(soc_rev, "ES%d.0", (omap_rev() >> 12) & 0xf); + + pr_info("%s %s\n", soc_name, soc_rev); +} + +void __init dra7xxx_check_revision(void) +{ + u32 idcode; + u16 hawkeye; + u8 rev, package; + struct omap_die_id odi; + + omap_get_die_id(&odi); + package = (odi.id_2 >> 16) & 0x3; + idcode = read_tap_reg(OMAP_TAP_IDCODE); + hawkeye = (idcode >> 12) & 0xffff; + rev = (idcode >> 28) & 0xff; + switch (hawkeye) { + case 0xbb50: + switch (rev) { + case 0: + default: + switch (package) { + case 0x2: + omap_revision = DRA762_ABZ_REV_ES1_0; + break; + case 0x3: + omap_revision = DRA762_ACD_REV_ES1_0; + break; + default: + omap_revision = DRA762_REV_ES1_0; + break; + } + break; + } + break; + + case 0xb990: + switch (rev) { + case 0: + omap_revision = DRA752_REV_ES1_0; + break; + case 1: + omap_revision = DRA752_REV_ES1_1; + break; + case 2: + default: + omap_revision = DRA752_REV_ES2_0; + break; + } + break; + + case 0xb9bc: + switch (rev) { + case 0: + omap_revision = DRA722_REV_ES1_0; + break; + case 1: + omap_revision = DRA722_REV_ES2_0; + break; + case 2: + default: + omap_revision = DRA722_REV_ES2_1; + break; + } + break; + + default: + /* Unknown default to latest silicon rev as default*/ + pr_warn("%s: unknown idcode=0x%08x (hawkeye=0x%08x,rev=0x%x)\n", + __func__, idcode, hawkeye, rev); + omap_revision = DRA752_REV_ES2_0; + } + + sprintf(soc_name, "DRA%03x", omap_rev() >> 16); + sprintf(soc_rev, "ES%d.%d", (omap_rev() >> 12) & 0xf, + (omap_rev() >> 8) & 0xf); + + pr_info("%s %s\n", soc_name, soc_rev); +} + +/* + * Set up things for map_io and processor detection later on. Gets called + * pretty much first thing from board init. For multi-omap, this gets + * cpu_is_omapxxxx() working accurately enough for map_io. Then we'll try to + * detect the exact revision later on in omap2_detect_revision() once map_io + * is done. + */ +void __init omap2_set_globals_tap(u32 class, void __iomem *tap) +{ + omap_revision = class; + tap_base = tap; + + /* XXX What is this intended to do? */ + if (soc_is_omap34xx()) + tap_prod_id = 0x0210; + else + tap_prod_id = 0x0208; +} + +#ifdef CONFIG_SOC_BUS + +static const char * const omap_types[] = { + [OMAP2_DEVICE_TYPE_TEST] = "TST", + [OMAP2_DEVICE_TYPE_EMU] = "EMU", + [OMAP2_DEVICE_TYPE_SEC] = "HS", + [OMAP2_DEVICE_TYPE_GP] = "GP", + [OMAP2_DEVICE_TYPE_BAD] = "BAD", +}; + +static const char * __init omap_get_family(void) +{ + if (soc_is_omap24xx()) + return kasprintf(GFP_KERNEL, "OMAP2"); + else if (soc_is_omap34xx()) + return kasprintf(GFP_KERNEL, "OMAP3"); + else if (soc_is_omap44xx()) + return kasprintf(GFP_KERNEL, "OMAP4"); + else if (soc_is_omap54xx()) + return kasprintf(GFP_KERNEL, "OMAP5"); + else if (soc_is_am33xx() || soc_is_am335x()) + return kasprintf(GFP_KERNEL, "AM33xx"); + else if (soc_is_am43xx()) + return kasprintf(GFP_KERNEL, "AM43xx"); + else if (soc_is_dra7xx()) + return kasprintf(GFP_KERNEL, "DRA7"); + else + return kasprintf(GFP_KERNEL, "Unknown"); +} + +static ssize_t +type_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%s\n", omap_types[omap_type()]); +} + +static DEVICE_ATTR_RO(type); + +static struct attribute *omap_soc_attrs[] = { + &dev_attr_type.attr, + NULL +}; + +ATTRIBUTE_GROUPS(omap_soc); + +void __init omap_soc_device_init(void) +{ + struct soc_device *soc_dev; + struct soc_device_attribute *soc_dev_attr; + + soc_dev_attr = kzalloc_obj(*soc_dev_attr); + if (!soc_dev_attr) + return; + + soc_dev_attr->machine = soc_name; + soc_dev_attr->family = omap_get_family(); + if (!soc_dev_attr->family) { + kfree(soc_dev_attr); + return; + } + soc_dev_attr->revision = soc_rev; + soc_dev_attr->custom_attr_group = omap_soc_groups[0]; + + soc_dev = soc_device_register(soc_dev_attr); + if (IS_ERR(soc_dev)) { + kfree(soc_dev_attr->family); + kfree(soc_dev_attr); + return; + } +} +#endif /* CONFIG_SOC_BUS */ diff --git a/arch/arm/mach-omap2/id.h b/arch/arm/mach-omap2/id.h new file mode 100644 index 000000000..ded7392f0 --- /dev/null +++ b/arch/arm/mach-omap2/id.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2 CPU identification code + * + * Copyright (C) 2010 Kan-Ru Chen <kanru@0xlab.org> + */ +#ifndef OMAP2_ARCH_ID_H +#define OMAP2_ARCH_ID_H + +struct omap_die_id { + u32 id_0; + u32 id_1; + u32 id_2; + u32 id_3; +}; + +#endif diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c new file mode 100644 index 000000000..14ec3f780 --- /dev/null +++ b/arch/arm/mach-omap2/io.c @@ -0,0 +1,703 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/io.c + * + * OMAP2 I/O mapping code + * + * Copyright (C) 2005 Nokia Corporation + * Copyright (C) 2007-2009 Texas Instruments + * + * Author: + * Juha Yrjola <juha.yrjola@nokia.com> + * Syed Khasim <x0khasim@ti.com> + * + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + */ +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/clk.h> + +#include <asm/tlb.h> +#include <asm/mach/map.h> + +#include <linux/omap-dma.h> + +#include "omap_hwmod.h" +#include "soc.h" +#include "iomap.h" +#include "voltage.h" +#include "powerdomain.h" +#include "clockdomain.h" +#include "common.h" +#include "clock.h" +#include "sdrc.h" +#include "control.h" +#include "sram.h" +#include "cm2xxx.h" +#include "cm3xxx.h" +#include "cm33xx.h" +#include "cm44xx.h" +#include "prm.h" +#include "cm.h" +#include "prcm_mpu44xx.h" +#include "prminst44xx.h" +#include "prm2xxx.h" +#include "prm3xxx.h" +#include "prm33xx.h" +#include "prm44xx.h" +#include "opp2xxx.h" +#include "omap-secure.h" + +/* + * omap_clk_soc_init: points to a function that does the SoC-specific + * clock initializations + */ +static int (*omap_clk_soc_init)(void); + +/* + * The machine specific code may provide the extra mapping besides the + * default mapping provided here. + */ + +#if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430) +static struct map_desc omap24xx_io_desc[] __initdata = { + { + .virtual = L3_24XX_VIRT, + .pfn = __phys_to_pfn(L3_24XX_PHYS), + .length = L3_24XX_SIZE, + .type = MT_DEVICE + }, + { + .virtual = L4_24XX_VIRT, + .pfn = __phys_to_pfn(L4_24XX_PHYS), + .length = L4_24XX_SIZE, + .type = MT_DEVICE + }, +}; + +#ifdef CONFIG_SOC_OMAP2420 +static struct map_desc omap242x_io_desc[] __initdata = { + { + .virtual = DSP_MEM_2420_VIRT, + .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS), + .length = DSP_MEM_2420_SIZE, + .type = MT_DEVICE + }, + { + .virtual = DSP_IPI_2420_VIRT, + .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS), + .length = DSP_IPI_2420_SIZE, + .type = MT_DEVICE + }, + { + .virtual = DSP_MMU_2420_VIRT, + .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS), + .length = DSP_MMU_2420_SIZE, + .type = MT_DEVICE + }, +}; + +#endif + +#ifdef CONFIG_SOC_OMAP2430 +static struct map_desc omap243x_io_desc[] __initdata = { + { + .virtual = L4_WK_243X_VIRT, + .pfn = __phys_to_pfn(L4_WK_243X_PHYS), + .length = L4_WK_243X_SIZE, + .type = MT_DEVICE + }, + { + .virtual = OMAP243X_GPMC_VIRT, + .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS), + .length = OMAP243X_GPMC_SIZE, + .type = MT_DEVICE + }, + { + .virtual = OMAP243X_SDRC_VIRT, + .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS), + .length = OMAP243X_SDRC_SIZE, + .type = MT_DEVICE + }, + { + .virtual = OMAP243X_SMS_VIRT, + .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS), + .length = OMAP243X_SMS_SIZE, + .type = MT_DEVICE + }, +}; +#endif +#endif + +#ifdef CONFIG_ARCH_OMAP3 +static struct map_desc omap34xx_io_desc[] __initdata = { + { + .virtual = L3_34XX_VIRT, + .pfn = __phys_to_pfn(L3_34XX_PHYS), + .length = L3_34XX_SIZE, + .type = MT_DEVICE + }, + { + .virtual = L4_34XX_VIRT, + .pfn = __phys_to_pfn(L4_34XX_PHYS), + .length = L4_34XX_SIZE, + .type = MT_DEVICE + }, + { + .virtual = OMAP34XX_GPMC_VIRT, + .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS), + .length = OMAP34XX_GPMC_SIZE, + .type = MT_DEVICE + }, + { + .virtual = OMAP343X_SMS_VIRT, + .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS), + .length = OMAP343X_SMS_SIZE, + .type = MT_DEVICE + }, + { + .virtual = OMAP343X_SDRC_VIRT, + .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS), + .length = OMAP343X_SDRC_SIZE, + .type = MT_DEVICE + }, + { + .virtual = L4_PER_34XX_VIRT, + .pfn = __phys_to_pfn(L4_PER_34XX_PHYS), + .length = L4_PER_34XX_SIZE, + .type = MT_DEVICE + }, + { + .virtual = L4_EMU_34XX_VIRT, + .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS), + .length = L4_EMU_34XX_SIZE, + .type = MT_DEVICE + }, +}; +#endif + +#ifdef CONFIG_SOC_TI81XX +static struct map_desc omapti81xx_io_desc[] __initdata = { + { + .virtual = L4_34XX_VIRT, + .pfn = __phys_to_pfn(L4_34XX_PHYS), + .length = L4_34XX_SIZE, + .type = MT_DEVICE + } +}; +#endif + +#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX) +static struct map_desc omapam33xx_io_desc[] __initdata = { + { + .virtual = L4_34XX_VIRT, + .pfn = __phys_to_pfn(L4_34XX_PHYS), + .length = L4_34XX_SIZE, + .type = MT_DEVICE + }, + { + .virtual = L4_WK_AM33XX_VIRT, + .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS), + .length = L4_WK_AM33XX_SIZE, + .type = MT_DEVICE + } +}; +#endif + +#ifdef CONFIG_ARCH_OMAP4 +static struct map_desc omap44xx_io_desc[] __initdata = { + { + .virtual = L3_44XX_VIRT, + .pfn = __phys_to_pfn(L3_44XX_PHYS), + .length = L3_44XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_44XX_VIRT, + .pfn = __phys_to_pfn(L4_44XX_PHYS), + .length = L4_44XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_PER_44XX_VIRT, + .pfn = __phys_to_pfn(L4_PER_44XX_PHYS), + .length = L4_PER_44XX_SIZE, + .type = MT_DEVICE, + }, +}; +#endif + +#ifdef CONFIG_SOC_OMAP5 +static struct map_desc omap54xx_io_desc[] __initdata = { + { + .virtual = L3_54XX_VIRT, + .pfn = __phys_to_pfn(L3_54XX_PHYS), + .length = L3_54XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_54XX_VIRT, + .pfn = __phys_to_pfn(L4_54XX_PHYS), + .length = L4_54XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_WK_54XX_VIRT, + .pfn = __phys_to_pfn(L4_WK_54XX_PHYS), + .length = L4_WK_54XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_PER_54XX_VIRT, + .pfn = __phys_to_pfn(L4_PER_54XX_PHYS), + .length = L4_PER_54XX_SIZE, + .type = MT_DEVICE, + }, +}; +#endif + +#ifdef CONFIG_SOC_DRA7XX +static struct map_desc dra7xx_io_desc[] __initdata = { + { + .virtual = L4_CFG_MPU_DRA7XX_VIRT, + .pfn = __phys_to_pfn(L4_CFG_MPU_DRA7XX_PHYS), + .length = L4_CFG_MPU_DRA7XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L3_MAIN_SN_DRA7XX_VIRT, + .pfn = __phys_to_pfn(L3_MAIN_SN_DRA7XX_PHYS), + .length = L3_MAIN_SN_DRA7XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_PER1_DRA7XX_VIRT, + .pfn = __phys_to_pfn(L4_PER1_DRA7XX_PHYS), + .length = L4_PER1_DRA7XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_PER2_DRA7XX_VIRT, + .pfn = __phys_to_pfn(L4_PER2_DRA7XX_PHYS), + .length = L4_PER2_DRA7XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_PER3_DRA7XX_VIRT, + .pfn = __phys_to_pfn(L4_PER3_DRA7XX_PHYS), + .length = L4_PER3_DRA7XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_CFG_DRA7XX_VIRT, + .pfn = __phys_to_pfn(L4_CFG_DRA7XX_PHYS), + .length = L4_CFG_DRA7XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_WKUP_DRA7XX_VIRT, + .pfn = __phys_to_pfn(L4_WKUP_DRA7XX_PHYS), + .length = L4_WKUP_DRA7XX_SIZE, + .type = MT_DEVICE, + }, +}; +#endif + +#ifdef CONFIG_SOC_OMAP2420 +void __init omap242x_map_io(void) +{ + iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); + iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc)); +} +#endif + +#ifdef CONFIG_SOC_OMAP2430 +void __init omap243x_map_io(void) +{ + iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); + iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc)); +} +#endif + +#ifdef CONFIG_ARCH_OMAP3 +void __init omap3_map_io(void) +{ + iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc)); +} +#endif + +#ifdef CONFIG_SOC_TI81XX +void __init ti81xx_map_io(void) +{ + iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc)); +} +#endif + +#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX) +void __init am33xx_map_io(void) +{ + iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc)); +} +#endif + +#ifdef CONFIG_ARCH_OMAP4 +void __init omap4_map_io(void) +{ + iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc)); + omap_barriers_init(); +} +#endif + +#ifdef CONFIG_SOC_OMAP5 +void __init omap5_map_io(void) +{ + iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc)); + omap_barriers_init(); +} +#endif + +#ifdef CONFIG_SOC_DRA7XX +void __init dra7xx_map_io(void) +{ + iotable_init(dra7xx_io_desc, ARRAY_SIZE(dra7xx_io_desc)); + omap_barriers_init(); +} +#endif +/* + * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters + * + * Sets the CORE DPLL3 M2 divider to the same value that it's at + * currently. This has the effect of setting the SDRC SDRAM AC timing + * registers to the values currently defined by the kernel. Currently + * only defined for OMAP3; will return 0 if called on OMAP2. Returns + * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2, + * or passes along the return value of clk_set_rate(). + */ +static int __init _omap2_init_reprogram_sdrc(void) +{ + struct clk *dpll3_m2_ck; + int v = -EINVAL; + long rate; + + if (!cpu_is_omap34xx()) + return 0; + + dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck"); + if (IS_ERR(dpll3_m2_ck)) + return -EINVAL; + + rate = clk_get_rate(dpll3_m2_ck); + pr_info("Reprogramming SDRC clock to %ld Hz\n", rate); + v = clk_set_rate(dpll3_m2_ck, rate); + if (v) + pr_err("dpll3_m2_clk rate change failed: %d\n", v); + + clk_put(dpll3_m2_ck); + + return v; +} + +#ifdef CONFIG_OMAP_HWMOD +static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) +{ + return omap_hwmod_set_postsetup_state(oh, *(u8 *)data); +} + +static void __init __maybe_unused omap_hwmod_init_postsetup(void) +{ + u8 postsetup_state = _HWMOD_STATE_DEFAULT; + + /* Set the default postsetup state for all hwmods */ + omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state); +} +#else +static inline void omap_hwmod_init_postsetup(void) +{ +} +#endif + +#ifdef CONFIG_SOC_OMAP2420 +void __init omap2420_init_early(void) +{ + omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000)); + omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE), + OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE)); + omap2_control_base_init(); + omap2xxx_check_revision(); + omap2_prcm_base_init(); + omap2xxx_voltagedomains_init(); + omap242x_powerdomains_init(); + omap242x_clockdomains_init(); + omap2420_hwmod_init(); + omap_hwmod_init_postsetup(); + omap_clk_soc_init = omap2420_dt_clk_init; + rate_table = omap2420_rate_table; +} +#endif + +#ifdef CONFIG_SOC_OMAP2430 +void __init omap2430_init_early(void) +{ + omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000)); + omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE), + OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE)); + omap2_control_base_init(); + omap2xxx_check_revision(); + omap2_prcm_base_init(); + omap2xxx_voltagedomains_init(); + omap243x_powerdomains_init(); + omap243x_clockdomains_init(); + omap2430_hwmod_init(); + omap_hwmod_init_postsetup(); + omap_clk_soc_init = omap2430_dt_clk_init; + rate_table = omap2430_rate_table; +} +#endif + +/* + * Currently only board-omap3beagle.c should call this because of the + * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT. + */ +#ifdef CONFIG_ARCH_OMAP3 +static void __init omap3_init_early(void) +{ + omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000)); + omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE), + OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE)); + omap2_control_base_init(); + omap3xxx_check_revision(); + omap3xxx_check_features(); + omap2_prcm_base_init(); + omap3xxx_voltagedomains_init(); + omap3xxx_powerdomains_init(); + omap3xxx_clockdomains_init(); + omap3xxx_hwmod_init(); + omap_hwmod_init_postsetup(); + omap_secure_init(); +} + +void __init omap3430_init_early(void) +{ + omap3_init_early(); + omap_clk_soc_init = omap3430_dt_clk_init; +} + +void __init omap3630_init_early(void) +{ + omap3_init_early(); + omap_clk_soc_init = omap3630_dt_clk_init; +} + +void __init am35xx_init_early(void) +{ + omap3_init_early(); + omap_clk_soc_init = am35xx_dt_clk_init; +} + +void __init omap3_init_late(void) +{ + omap_pm_soc_init = omap3_pm_init; +} + +void __init ti81xx_init_late(void) +{ + omap_pm_soc_init = omap_pm_nop_init; +} +#endif + +#ifdef CONFIG_SOC_TI81XX +void __init ti814x_init_early(void) +{ + omap2_set_globals_tap(TI814X_CLASS, + OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE)); + omap2_control_base_init(); + omap3xxx_check_revision(); + ti81xx_check_features(); + omap2_prcm_base_init(); + omap3xxx_voltagedomains_init(); + omap3xxx_powerdomains_init(); + ti814x_clockdomains_init(); + dm814x_hwmod_init(); + omap_hwmod_init_postsetup(); + omap_clk_soc_init = dm814x_dt_clk_init; + omap_secure_init(); +} + +void __init ti816x_init_early(void) +{ + omap2_set_globals_tap(TI816X_CLASS, + OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE)); + omap2_control_base_init(); + omap3xxx_check_revision(); + ti81xx_check_features(); + omap2_prcm_base_init(); + omap3xxx_voltagedomains_init(); + omap3xxx_powerdomains_init(); + ti816x_clockdomains_init(); + dm816x_hwmod_init(); + omap_hwmod_init_postsetup(); + omap_clk_soc_init = dm816x_dt_clk_init; + omap_secure_init(); +} +#endif + +#ifdef CONFIG_SOC_AM33XX +void __init am33xx_init_early(void) +{ + omap2_set_globals_tap(AM335X_CLASS, + AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE)); + omap2_control_base_init(); + omap3xxx_check_revision(); + am33xx_check_features(); + omap2_prcm_base_init(); + am33xx_powerdomains_init(); + am33xx_clockdomains_init(); + omap_clk_soc_init = am33xx_dt_clk_init; + omap_secure_init(); +} + +void __init am33xx_init_late(void) +{ + omap_pm_soc_init = amx3_common_pm_init; +} +#endif + +#ifdef CONFIG_SOC_AM43XX +void __init am43xx_init_early(void) +{ + omap2_set_globals_tap(AM335X_CLASS, + AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE)); + omap2_control_base_init(); + omap3xxx_check_revision(); + am33xx_check_features(); + omap2_prcm_base_init(); + am43xx_powerdomains_init(); + am43xx_clockdomains_init(); + omap_l2_cache_init(); + omap_clk_soc_init = am43xx_dt_clk_init; + omap_secure_init(); +} + +void __init am43xx_init_late(void) +{ + omap_pm_soc_init = amx3_common_pm_init; +} +#endif + +#ifdef CONFIG_ARCH_OMAP4 +void __init omap4430_init_early(void) +{ + omap2_set_globals_tap(OMAP443X_CLASS, + OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE)); + omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE)); + omap2_control_base_init(); + omap4xxx_check_revision(); + omap4xxx_check_features(); + omap2_prcm_base_init(); + omap4_sar_ram_init(); + omap4_mpuss_early_init(); + omap4_pm_init_early(); + omap44xx_voltagedomains_init(); + omap44xx_powerdomains_init(); + omap44xx_clockdomains_init(); + omap_l2_cache_init(); + omap_clk_soc_init = omap4xxx_dt_clk_init; + omap_secure_init(); +} + +void __init omap4430_init_late(void) +{ + omap_pm_soc_init = omap4_pm_init; +} +#endif + +#ifdef CONFIG_SOC_OMAP5 +void __init omap5_init_early(void) +{ + omap2_set_globals_tap(OMAP54XX_CLASS, + OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE)); + omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE)); + omap2_control_base_init(); + omap2_prcm_base_init(); + omap5xxx_check_revision(); + omap4_sar_ram_init(); + omap4_mpuss_early_init(); + omap4_pm_init_early(); + omap54xx_voltagedomains_init(); + omap54xx_powerdomains_init(); + omap54xx_clockdomains_init(); + omap_clk_soc_init = omap5xxx_dt_clk_init; + omap_secure_init(); +} + +void __init omap5_init_late(void) +{ + omap_pm_soc_init = omap4_pm_init; +} +#endif + +#ifdef CONFIG_SOC_DRA7XX +void __init dra7xx_init_early(void) +{ + omap2_set_globals_tap(DRA7XX_CLASS, + OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE)); + omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE)); + omap2_control_base_init(); + omap4_pm_init_early(); + omap2_prcm_base_init(); + dra7xxx_check_revision(); + dra7xx_powerdomains_init(); + dra7xx_clockdomains_init(); + omap_clk_soc_init = dra7xx_dt_clk_init; + omap_secure_init(); +} + +void __init dra7xx_init_late(void) +{ + omap_pm_soc_init = omap4_pm_init; +} +#endif + + +void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) +{ + omap_sram_init(); + + if (cpu_is_omap24xx() || omap3_has_sdrc()) { + omap2_sdrc_init(sdrc_cs0, sdrc_cs1); + _omap2_init_reprogram_sdrc(); + } +} + +int __init omap_clk_init(void) +{ + int ret = 0; + + if (!omap_clk_soc_init) + return 0; + + ti_clk_init_features(); + + omap2_clk_setup_ll_ops(); + + ret = omap_control_init(); + if (ret) + return ret; + + ret = omap_prcm_init(); + if (ret) + return ret; + + of_clk_init(NULL); + + ti_dt_clk_init_retry_clks(); + + ti_dt_clockdomains_setup(); + + ret = omap_clk_soc_init(); + + return ret; +} diff --git a/arch/arm/mach-omap2/iomap.h b/arch/arm/mach-omap2/iomap.h new file mode 100644 index 000000000..6191d2444 --- /dev/null +++ b/arch/arm/mach-omap2/iomap.h @@ -0,0 +1,259 @@ +/* + * IO mappings for OMAP2+ + * + * IO definitions for TI OMAP processors and boards + * + * Copied from arch/arm/mach-sa1100/include/mach/io.h + * Copyright (C) 1997-1999 Russell King + * + * Copyright (C) 2009-2012 Texas Instruments + * Added OMAP4/5 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define OMAP2_L3_IO_OFFSET 0x90000000 +#define OMAP2_L3_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_L3_IO_OFFSET) /* L3 */ + +#define OMAP2_L4_IO_OFFSET 0xb2000000 +#define OMAP2_L4_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_L4_IO_OFFSET) /* L4 */ + +#define OMAP4_L3_IO_OFFSET 0xb4000000 +#define OMAP4_L3_IO_ADDRESS(pa) IOMEM((pa) + OMAP4_L3_IO_OFFSET) /* L3 */ + +#define AM33XX_L4_WK_IO_OFFSET 0xb5000000 +#define AM33XX_L4_WK_IO_ADDRESS(pa) IOMEM((pa) + AM33XX_L4_WK_IO_OFFSET) + +#define OMAP4_L3_PER_IO_OFFSET 0xb1100000 +#define OMAP4_L3_PER_IO_ADDRESS(pa) IOMEM((pa) + OMAP4_L3_PER_IO_OFFSET) + +#define OMAP2_EMU_IO_OFFSET 0xaa800000 /* Emulation */ +#define OMAP2_EMU_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_EMU_IO_OFFSET) + +/* + * ---------------------------------------------------------------------------- + * Omap2 specific IO mapping + * ---------------------------------------------------------------------------- + */ + +/* We map both L3 and L4 on OMAP2 */ +#define L3_24XX_PHYS L3_24XX_BASE /* 0x68000000 --> 0xf8000000*/ +#define L3_24XX_VIRT (L3_24XX_PHYS + OMAP2_L3_IO_OFFSET) +#define L3_24XX_SIZE SZ_1M /* 44kB of 128MB used, want 1MB sect */ +#define L4_24XX_PHYS L4_24XX_BASE /* 0x48000000 --> 0xfa000000 */ +#define L4_24XX_VIRT (L4_24XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_24XX_SIZE SZ_1M /* 1MB of 128MB used, want 1MB sect */ + +#define L4_WK_243X_PHYS L4_WK_243X_BASE /* 0x49000000 --> 0xfb000000 */ +#define L4_WK_243X_VIRT (L4_WK_243X_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_WK_243X_SIZE SZ_1M +#define OMAP243X_GPMC_PHYS OMAP243X_GPMC_BASE +#define OMAP243X_GPMC_VIRT (OMAP243X_GPMC_PHYS + OMAP2_L3_IO_OFFSET) + /* 0x6e000000 --> 0xfe000000 */ +#define OMAP243X_GPMC_SIZE SZ_1M +#define OMAP243X_SDRC_PHYS OMAP243X_SDRC_BASE + /* 0x6D000000 --> 0xfd000000 */ +#define OMAP243X_SDRC_VIRT (OMAP243X_SDRC_PHYS + OMAP2_L3_IO_OFFSET) +#define OMAP243X_SDRC_SIZE SZ_1M +#define OMAP243X_SMS_PHYS OMAP243X_SMS_BASE + /* 0x6c000000 --> 0xfc000000 */ +#define OMAP243X_SMS_VIRT (OMAP243X_SMS_PHYS + OMAP2_L3_IO_OFFSET) +#define OMAP243X_SMS_SIZE SZ_1M + +/* 2420 IVA */ +#define DSP_MEM_2420_PHYS OMAP2420_DSP_MEM_BASE + /* 0x58000000 --> 0xfc100000 */ +#define DSP_MEM_2420_VIRT 0xfc100000 +#define DSP_MEM_2420_SIZE 0x28000 +#define DSP_IPI_2420_PHYS OMAP2420_DSP_IPI_BASE + /* 0x59000000 --> 0xfc128000 */ +#define DSP_IPI_2420_VIRT 0xfc128000 +#define DSP_IPI_2420_SIZE SZ_4K +#define DSP_MMU_2420_PHYS OMAP2420_DSP_MMU_BASE + /* 0x5a000000 --> 0xfc129000 */ +#define DSP_MMU_2420_VIRT 0xfc129000 +#define DSP_MMU_2420_SIZE SZ_4K + +/* 2430 IVA2.1 - currently unmapped */ + +/* + * ---------------------------------------------------------------------------- + * Omap3 specific IO mapping + * ---------------------------------------------------------------------------- + */ + +/* We map both L3 and L4 on OMAP3 */ +#define L3_34XX_PHYS L3_34XX_BASE /* 0x68000000 --> 0xf8000000 */ +#define L3_34XX_VIRT (L3_34XX_PHYS + OMAP2_L3_IO_OFFSET) +#define L3_34XX_SIZE SZ_1M /* 44kB of 128MB used, want 1MB sect */ + +#define L4_34XX_PHYS L4_34XX_BASE /* 0x48000000 --> 0xfa000000 */ +#define L4_34XX_VIRT (L4_34XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_34XX_SIZE SZ_4M /* 1MB of 128MB used, want 1MB sect */ + +/* + * ---------------------------------------------------------------------------- + * AM33XX specific IO mapping + * ---------------------------------------------------------------------------- + */ +#define L4_WK_AM33XX_PHYS L4_WK_AM33XX_BASE +#define L4_WK_AM33XX_VIRT (L4_WK_AM33XX_PHYS + AM33XX_L4_WK_IO_OFFSET) +#define L4_WK_AM33XX_SIZE SZ_4M /* 1MB of 128MB used, want 1MB sect */ + +/* + * Need to look at the Size 4M for L4. + * VPOM3430 was not working for Int controller + */ + +#define L4_PER_34XX_PHYS L4_PER_34XX_BASE + /* 0x49000000 --> 0xfb000000 */ +#define L4_PER_34XX_VIRT (L4_PER_34XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_PER_34XX_SIZE SZ_1M + +#define L4_EMU_34XX_PHYS L4_EMU_34XX_BASE + /* 0x54000000 --> 0xfe800000 */ +#define L4_EMU_34XX_VIRT (L4_EMU_34XX_PHYS + OMAP2_EMU_IO_OFFSET) +#define L4_EMU_34XX_SIZE SZ_8M + +#define OMAP34XX_GPMC_PHYS OMAP34XX_GPMC_BASE + /* 0x6e000000 --> 0xfe000000 */ +#define OMAP34XX_GPMC_VIRT (OMAP34XX_GPMC_PHYS + OMAP2_L3_IO_OFFSET) +#define OMAP34XX_GPMC_SIZE SZ_1M + +#define OMAP343X_SMS_PHYS OMAP343X_SMS_BASE + /* 0x6c000000 --> 0xfc000000 */ +#define OMAP343X_SMS_VIRT (OMAP343X_SMS_PHYS + OMAP2_L3_IO_OFFSET) +#define OMAP343X_SMS_SIZE SZ_1M + +#define OMAP343X_SDRC_PHYS OMAP343X_SDRC_BASE + /* 0x6D000000 --> 0xfd000000 */ +#define OMAP343X_SDRC_VIRT (OMAP343X_SDRC_PHYS + OMAP2_L3_IO_OFFSET) +#define OMAP343X_SDRC_SIZE SZ_1M + +/* 3430 IVA - currently unmapped */ + +/* + * ---------------------------------------------------------------------------- + * Omap4 specific IO mapping + * ---------------------------------------------------------------------------- + */ + +/* We map both L3 and L4 on OMAP4 */ +#define L3_44XX_PHYS L3_44XX_BASE /* 0x44000000 --> 0xf8000000 */ +#define L3_44XX_VIRT (L3_44XX_PHYS + OMAP4_L3_IO_OFFSET) +#define L3_44XX_SIZE SZ_1M + +#define L4_44XX_PHYS L4_44XX_BASE /* 0x4a000000 --> 0xfc000000 */ +#define L4_44XX_VIRT (L4_44XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_44XX_SIZE SZ_4M + +#define L4_PER_44XX_PHYS L4_PER_44XX_BASE + /* 0x48000000 --> 0xfa000000 */ +#define L4_PER_44XX_VIRT (L4_PER_44XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_PER_44XX_SIZE SZ_4M + +#define L4_ABE_44XX_PHYS L4_ABE_44XX_BASE + /* 0x49000000 --> 0xfb000000 */ +#define L4_ABE_44XX_VIRT (L4_ABE_44XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_ABE_44XX_SIZE SZ_1M +/* + * ---------------------------------------------------------------------------- + * Omap5 specific IO mapping + * ---------------------------------------------------------------------------- + */ +#define L3_54XX_PHYS L3_54XX_BASE /* 0x44000000 --> 0xf8000000 */ +#define L3_54XX_VIRT (L3_54XX_PHYS + OMAP4_L3_IO_OFFSET) +#define L3_54XX_SIZE SZ_1M + +#define L4_54XX_PHYS L4_54XX_BASE /* 0x4a000000 --> 0xfc000000 */ +#define L4_54XX_VIRT (L4_54XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_54XX_SIZE SZ_4M + +#define L4_WK_54XX_PHYS L4_WK_54XX_BASE /* 0x4ae00000 --> 0xfce00000 */ +#define L4_WK_54XX_VIRT (L4_WK_54XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_WK_54XX_SIZE SZ_2M + +#define L4_PER_54XX_PHYS L4_PER_54XX_BASE /* 0x48000000 --> 0xfa000000 */ +#define L4_PER_54XX_VIRT (L4_PER_54XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_PER_54XX_SIZE SZ_4M + +/* + * ---------------------------------------------------------------------------- + * DRA7xx specific IO mapping + * ---------------------------------------------------------------------------- + */ +/* + * L3_MAIN_SN_DRA7XX_PHYS 0x44000000 --> 0xf8000000 + * The overall space is 24MiB (0x4400_0000<->0x457F_FFFF), but mapping + * everything is just inefficient, since, there are too many address holes. + */ +#define L3_MAIN_SN_DRA7XX_PHYS L3_MAIN_SN_DRA7XX_BASE +#define L3_MAIN_SN_DRA7XX_VIRT (L3_MAIN_SN_DRA7XX_PHYS + OMAP4_L3_IO_OFFSET) +#define L3_MAIN_SN_DRA7XX_SIZE SZ_1M + +/* + * L4_PER1_DRA7XX_PHYS (0x4800_000<>0x480D_2FFF) -> 0.82MiB (alloc 1MiB) + * (0x48000000<->0x48100000) <=> (0xFA000000<->0xFA100000) + */ +#define L4_PER1_DRA7XX_PHYS L4_PER1_DRA7XX_BASE +#define L4_PER1_DRA7XX_VIRT (L4_PER1_DRA7XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_PER1_DRA7XX_SIZE SZ_1M + +/* + * L4_CFG_MPU_DRA7XX_PHYS (0x48210000<>0x482A_F2FF) -> 0.62MiB (alloc 1MiB) + * (0x48210000<->0x48310000) <=> (0xFA210000<->0xFA310000) + * NOTE: This is a bit of an orphan memory map sitting isolated in TRM + */ +#define L4_CFG_MPU_DRA7XX_PHYS L4_CFG_MPU_DRA7XX_BASE +#define L4_CFG_MPU_DRA7XX_VIRT (L4_CFG_MPU_DRA7XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_CFG_MPU_DRA7XX_SIZE SZ_1M + +/* + * L4_PER2_DRA7XX_PHYS (0x4840_0000<>0x4848_8FFF) -> .53MiB (alloc 1MiB) + * (0x48400000<->0x48500000) <=> (0xFA400000<->0xFA500000) + */ +#define L4_PER2_DRA7XX_PHYS L4_PER2_DRA7XX_BASE +#define L4_PER2_DRA7XX_VIRT (L4_PER2_DRA7XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_PER2_DRA7XX_SIZE SZ_1M + +/* + * L4_PER3_DRA7XX_PHYS (0x4880_0000<>0x489E_0FFF) -> 1.87MiB (alloc 2MiB) + * (0x48800000<->0x48A00000) <=> (0xFA800000<->0xFAA00000) + */ +#define L4_PER3_DRA7XX_PHYS L4_PER3_DRA7XX_BASE +#define L4_PER3_DRA7XX_VIRT (L4_PER3_DRA7XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_PER3_DRA7XX_SIZE SZ_2M + +/* + * L4_CFG_DRA7XX_PHYS (0x4A00_0000<>0x4A22_BFFF) ->2.17MiB (alloc 3MiB)? + * (0x4A000000<->0x4A300000) <=> (0xFC000000<->0xFC300000) + */ +#define L4_CFG_DRA7XX_PHYS L4_CFG_DRA7XX_BASE +#define L4_CFG_DRA7XX_VIRT (L4_CFG_DRA7XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_CFG_DRA7XX_SIZE (SZ_1M + SZ_2M) + +/* + * L4_WKUP_DRA7XX_PHYS (0x4AE0_0000<>0x4AE3_EFFF) -> .24 mb (alloc 1MiB)? + * (0x4AE00000<->4AF00000) <=> (0xFCE00000<->0xFCF00000) + */ +#define L4_WKUP_DRA7XX_PHYS L4_WKUP_DRA7XX_BASE +#define L4_WKUP_DRA7XX_VIRT (L4_WKUP_DRA7XX_PHYS + OMAP2_L4_IO_OFFSET) +#define L4_WKUP_DRA7XX_SIZE SZ_1M diff --git a/arch/arm/mach-omap2/l3_2xxx.h b/arch/arm/mach-omap2/l3_2xxx.h new file mode 100644 index 000000000..6297c6242 --- /dev/null +++ b/arch/arm/mach-omap2/l3_2xxx.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * arch/arm/plat-omap/include/plat/l3_2xxx.h - L3 firewall definitions + * + * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ + * Sumit Semwal + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_L3_2XXX_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_L3_2XXX_H + +/* L3 CONNIDs */ +/* Display Sub system (DSS) */ +#define OMAP2_L3_CORE_FW_CONNID_DSS 8 + +#endif diff --git a/arch/arm/mach-omap2/l3_3xxx.h b/arch/arm/mach-omap2/l3_3xxx.h new file mode 100644 index 000000000..60ea7b201 --- /dev/null +++ b/arch/arm/mach-omap2/l3_3xxx.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * arch/arm/plat-omap/include/plat/l3_3xxx.h - L3 firewall definitions + * + * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ + * Sumit Semwal + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_L3_3XXX_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_L3_3XXX_H + +/* L3 Initiator IDs */ +/* Display Sub system (DSS) */ +#define OMAP3_L3_CORE_FW_INIT_ID_DSS 29 + +#endif diff --git a/arch/arm/mach-omap2/l4_2xxx.h b/arch/arm/mach-omap2/l4_2xxx.h new file mode 100644 index 000000000..418e1072d --- /dev/null +++ b/arch/arm/mach-omap2/l4_2xxx.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * arch/arm/plat-omap/include/plat/l4_2xxx.h - L4 firewall definitions + * + * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ + * Sumit Semwal + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_L4_2XXX_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_PLAT_L4_2XXX_H + +/* L4 CORE */ +/* Display Sub system (DSS) */ +#define OMAP2420_L4_CORE_FW_DSS_CORE_REGION 28 +#define OMAP2420_L4_CORE_FW_DSS_DISPC_REGION 29 +#define OMAP2420_L4_CORE_FW_DSS_RFBI_REGION 30 +#define OMAP2420_L4_CORE_FW_DSS_VENC_REGION 31 +#define OMAP2420_L4_CORE_FW_DSS_TA_REGION 32 + +#endif diff --git a/arch/arm/mach-omap2/l4_3xxx.h b/arch/arm/mach-omap2/l4_3xxx.h new file mode 100644 index 000000000..4d9daa2e6 --- /dev/null +++ b/arch/arm/mach-omap2/l4_3xxx.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * arch/arm/plat-omap/include/mach/l4_3xxx.h - L4 firewall definitions + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_L4_3XXX_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_L4_3XXX_H + +/* L4 CORE */ +#define OMAP3_L4_CORE_FW_I2C1_REGION 21 +#define OMAP3_L4_CORE_FW_I2C1_TA_REGION 22 +#define OMAP3_L4_CORE_FW_I2C2_REGION 23 +#define OMAP3_L4_CORE_FW_I2C2_TA_REGION 24 +#define OMAP3_L4_CORE_FW_I2C3_REGION 73 +#define OMAP3_L4_CORE_FW_I2C3_TA_REGION 74 + +/* Display Sub system (DSS) */ +#define OMAP3_L4_CORE_FW_DSS_PROT_GROUP 2 + +#define OMAP3_L4_CORE_FW_DSS_DSI_REGION 104 +#define OMAP3ES1_L4_CORE_FW_DSS_CORE_REGION 3 +#define OMAP3_L4_CORE_FW_DSS_CORE_REGION 4 +#define OMAP3_L4_CORE_FW_DSS_DISPC_REGION 4 +#define OMAP3_L4_CORE_FW_DSS_RFBI_REGION 5 +#define OMAP3_L4_CORE_FW_DSS_VENC_REGION 6 +#define OMAP3_L4_CORE_FW_DSS_TA_REGION 7 +#endif diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c new file mode 100644 index 000000000..c3604b458 --- /dev/null +++ b/arch/arm/mach-omap2/mcbsp.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/mcbsp.c + * + * Copyright (C) 2008 Instituto Nokia de Tecnologia + * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br> + * + * Multichannel mode not supported. + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/platform_data/asoc-ti-mcbsp.h> +#include <linux/pm_runtime.h> + +#include <linux/omap-dma.h> + +#include "soc.h" +#include "omap_device.h" +#include "clock.h" + +/* + * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle. + * Sidetone needs non-gated ICLK and sidetone autoidle is broken. + */ +#include "cm3xxx.h" +#include "cm-regbits-34xx.h" + +static int omap3_mcbsp_force_ick_on(struct clk *clk, bool force_on) +{ + if (!clk) + return 0; + + if (force_on) + return omap2_clk_deny_idle(clk); + else + return omap2_clk_allow_idle(clk); +} + +void __init omap3_mcbsp_init_pdata_callback( + struct omap_mcbsp_platform_data *pdata) +{ + if (!pdata) + return; + + pdata->force_ick_on = omap3_mcbsp_force_ick_on; +} diff --git a/arch/arm/mach-omap2/mmc.h b/arch/arm/mach-omap2/mmc.h new file mode 100644 index 000000000..b5533e93c --- /dev/null +++ b/arch/arm/mach-omap2/mmc.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#define OMAP24XX_NR_MMC 2 +#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE +#define OMAP2_MMC1_BASE 0x4809c000 + +#define OMAP4_MMC_REG_OFFSET 0x100 + +struct omap_hwmod; + +#ifdef CONFIG_SOC_OMAP2420 +int omap_msdi_reset(struct omap_hwmod *oh); +#else +static inline int omap_msdi_reset(struct omap_hwmod *oh) +{ + return 0; +} +#endif diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c new file mode 100644 index 000000000..552b2fa4e --- /dev/null +++ b/arch/arm/mach-omap2/msdi.c @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * MSDI IP block reset + * + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + * + * XXX What about pad muxing? + */ + +#include <linux/kernel.h> +#include <linux/err.h> + +#include "prm.h" +#include "common.h" +#include "control.h" +#include "omap_hwmod.h" +#include "omap_device.h" +#include "mmc.h" + +/* + * MSDI_CON_OFFSET: offset in bytes of the MSDI IP block's CON register + * from the IP block's base address + */ +#define MSDI_CON_OFFSET 0x0c + +/* Register bitfields in the CON register */ +#define MSDI_CON_POW_MASK BIT(11) +#define MSDI_CON_CLKD_MASK (0x3f << 0) +#define MSDI_CON_CLKD_SHIFT 0 + +/* MSDI_TARGET_RESET_CLKD: clock divisor to use throughout the reset */ +#define MSDI_TARGET_RESET_CLKD 0x3ff + +/** + * omap_msdi_reset - reset the MSDI IP block + * @oh: struct omap_hwmod * + * + * The MSDI IP block on OMAP2420 has to have both the POW and CLKD + * fields set inside its CON register for a reset to complete + * successfully. This is not documented in the TRM. For CLKD, we use + * the value that results in the lowest possible clock rate, to attempt + * to avoid disturbing any cards. + */ +int omap_msdi_reset(struct omap_hwmod *oh) +{ + u16 v = 0; + int c = 0; + + /* Write to the SOFTRESET bit */ + omap_hwmod_softreset(oh); + + /* Enable the MSDI core and internal clock */ + v |= MSDI_CON_POW_MASK; + v |= MSDI_TARGET_RESET_CLKD << MSDI_CON_CLKD_SHIFT; + omap_hwmod_write(v, oh, MSDI_CON_OFFSET); + + /* Poll on RESETDONE bit */ + omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + + if (c == MAX_MODULE_SOFTRESET_WAIT) + pr_warn("%s: %s: softreset failed (waited %d usec)\n", + __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); + else + pr_debug("%s: %s: softreset in %d usec\n", __func__, + oh->name, c); + + /* Disable the MSDI internal clock */ + v &= ~MSDI_CON_CLKD_MASK; + omap_hwmod_write(v, oh, MSDI_CON_OFFSET); + + return 0; +} diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S new file mode 100644 index 000000000..1762f9199 --- /dev/null +++ b/arch/arm/mach-omap2/omap-headsmp.S @@ -0,0 +1,133 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Secondary CPU startup routine source file. + * + * Copyright (C) 2009-2014 Texas Instruments, Inc. + * + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Interface functions needed for the SMP. This file is based on arm + * realview smp platform. + * Copyright (c) 2003 ARM Limited. + */ + +#include <linux/linkage.h> +#include <linux/init.h> +#include <asm/assembler.h> + +#include "omap44xx.h" + +/* Physical address needed since MMU not enabled yet on secondary core */ +#define AUX_CORE_BOOT0_PA 0x48281800 +#define API_HYP_ENTRY 0x102 + +ENTRY(omap_secondary_startup) +#ifdef CONFIG_SMP + b secondary_startup +#else +/* Should never get here */ +again: wfi + b again +#endif +#ENDPROC(omap_secondary_startup) + +/* + * OMAP5 specific entry point for secondary CPU to jump from ROM + * code. This routine also provides a holding flag into which + * secondary core is held until we're ready for it to initialise. + * The primary core will update this flag using a hardware + * register AuxCoreBoot0. + */ +ENTRY(omap5_secondary_startup) +wait: ldr r2, =AUX_CORE_BOOT0_PA @ read from AuxCoreBoot0 + ldr r0, [r2] + mov r0, r0, lsr #5 + mrc p15, 0, r4, c0, c0, 5 + and r4, r4, #0x0f + cmp r0, r4 + bne wait + b omap_secondary_startup +ENDPROC(omap5_secondary_startup) +/* + * Same as omap5_secondary_startup except we call into the ROM to + * enable HYP mode first. This is called instead of + * omap5_secondary_startup if the primary CPU was put into HYP mode by + * the boot loader. + */ + .arch armv7-a + .arch_extension sec +ENTRY(omap5_secondary_hyp_startup) +wait_2: ldr r2, =AUX_CORE_BOOT0_PA @ read from AuxCoreBoot0 + ldr r0, [r2] + mov r0, r0, lsr #5 + mrc p15, 0, r4, c0, c0, 5 + and r4, r4, #0x0f + cmp r0, r4 + bne wait_2 + ldr r12, =API_HYP_ENTRY + badr r0, hyp_boot + smc #0 +hyp_boot: + b omap_secondary_startup +ENDPROC(omap5_secondary_hyp_startup) +/* + * OMAP4 specific entry point for secondary CPU to jump from ROM + * code. This routine also provides a holding flag into which + * secondary core is held until we're ready for it to initialise. + * The primary core will update this flag using a hardware + * register AuxCoreBoot0. + */ +ENTRY(omap4_secondary_startup) +hold: ldr r12,=0x103 + dsb + smc #0 @ read from AuxCoreBoot0 + mov r0, r0, lsr #9 + mrc p15, 0, r4, c0, c0, 5 + and r4, r4, #0x0f + cmp r0, r4 + bne hold + + /* + * we've been released from the wait loop,secondary_stack + * should now contain the SVC stack for this core + */ + b omap_secondary_startup +ENDPROC(omap4_secondary_startup) + +ENTRY(omap4460_secondary_startup) +hold_2: ldr r12,=0x103 + dsb + smc #0 @ read from AuxCoreBoot0 + mov r0, r0, lsr #9 + mrc p15, 0, r4, c0, c0, 5 + and r4, r4, #0x0f + cmp r0, r4 + bne hold_2 + + /* + * GIC distributor control register has changed between + * CortexA9 r1pX and r2pX. The Control Register secure + * banked version is now composed of 2 bits: + * bit 0 == Secure Enable + * bit 1 == Non-Secure Enable + * The Non-Secure banked register has not changed + * Because the ROM Code is based on the r1pX GIC, the CPU1 + * GIC restoration will cause a problem to CPU0 Non-Secure SW. + * The workaround must be: + * 1) Before doing the CPU1 wakeup, CPU0 must disable + * the GIC distributor + * 2) CPU1 must re-enable the GIC distributor on + * it's wakeup path. + */ + ldr r1, =OMAP44XX_GIC_DIST_BASE + ldr r0, [r1] + orr r0, #1 + str r0, [r1] + + /* + * we've been released from the wait loop,secondary_stack + * should now contain the SVC stack for this core + */ + b omap_secondary_startup +ENDPROC(omap4460_secondary_startup) diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c new file mode 100644 index 000000000..8343fcf4f --- /dev/null +++ b/arch/arm/mach-omap2/omap-hotplug.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 SMP cpu-hotplug support + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Platform file needed for the OMAP4 SMP. This file is based on arm + * realview smp platform. + * Copyright (c) 2002 ARM Limited. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/smp.h> +#include <linux/io.h> + +#include "omap-wakeupgen.h" +#include "common.h" +#include "powerdomain.h" + +/* + * platform-specific code to shutdown a CPU + * Called with IRQs disabled + */ +void omap4_cpu_die(unsigned int cpu) +{ + unsigned int boot_cpu = 0; + void __iomem *base = omap_get_wakeupgen_base(); + + /* + * we're ready for shutdown now, so do it + */ + if (omap_secure_apis_support()) { + if (omap_modify_auxcoreboot0(0x0, 0x200) != 0x0) + pr_err("Secure clear status failed\n"); + } else { + writel_relaxed(0, base + OMAP_AUX_CORE_BOOT_0); + } + + + for (;;) { + /* + * Enter into low power state + */ + omap4_hotplug_cpu(cpu, PWRDM_POWER_OFF); + + if (omap_secure_apis_support()) + boot_cpu = omap_read_auxcoreboot0() >> 9; + else + boot_cpu = + readl_relaxed(base + OMAP_AUX_CORE_BOOT_0) >> 5; + + if (boot_cpu == smp_processor_id()) { + /* + * OK, proper wakeup, we're done + */ + break; + } + pr_debug("CPU%u: spurious wakeup call\n", cpu); + } +} + +/* Needed by kexec and platform_can_cpu_hotplug() */ +int omap4_cpu_kill(unsigned int cpu) +{ + return 1; +} diff --git a/arch/arm/mach-omap2/omap-iommu.c b/arch/arm/mach-omap2/omap-iommu.c new file mode 100644 index 000000000..3b48fb20a --- /dev/null +++ b/arch/arm/mach-omap2/omap-iommu.c @@ -0,0 +1,142 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP IOMMU quirks for various TI SoCs + * + * Copyright (C) 2015-2019 Texas Instruments Incorporated - https://www.ti.com/ + * Suman Anna <s-anna@ti.com> + */ + +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/list.h> + +#include "clockdomain.h" +#include "powerdomain.h" +#include "common.h" + +struct pwrdm_link { + struct device *dev; + struct powerdomain *pwrdm; + struct list_head node; +}; + +static DEFINE_SPINLOCK(iommu_lock); +static struct clockdomain *emu_clkdm; +static atomic_t emu_count; + +static void omap_iommu_dra7_emu_swsup_config(struct platform_device *pdev, + bool enable) +{ + struct device_node *np = pdev->dev.of_node; + unsigned long flags; + + if (!of_device_is_compatible(np, "ti,dra7-dsp-iommu")) + return; + + if (!emu_clkdm) { + emu_clkdm = clkdm_lookup("emu_clkdm"); + if (WARN_ON_ONCE(!emu_clkdm)) + return; + } + + spin_lock_irqsave(&iommu_lock, flags); + + if (enable && (atomic_inc_return(&emu_count) == 1)) + clkdm_deny_idle(emu_clkdm); + else if (!enable && (atomic_dec_return(&emu_count) == 0)) + clkdm_allow_idle(emu_clkdm); + + spin_unlock_irqrestore(&iommu_lock, flags); +} + +static struct powerdomain *_get_pwrdm(struct device *dev) +{ + struct clk *clk; + struct clk_hw_omap *hwclk; + struct clockdomain *clkdm; + struct powerdomain *pwrdm = NULL; + struct pwrdm_link *entry; + unsigned long flags; + static LIST_HEAD(cache); + + spin_lock_irqsave(&iommu_lock, flags); + + list_for_each_entry(entry, &cache, node) { + if (entry->dev == dev) { + pwrdm = entry->pwrdm; + break; + } + } + + spin_unlock_irqrestore(&iommu_lock, flags); + + if (pwrdm) + return pwrdm; + + clk = of_clk_get(dev->of_node->parent, 0); + if (IS_ERR(clk)) { + dev_err(dev, "no fck found\n"); + return NULL; + } + + hwclk = to_clk_hw_omap(__clk_get_hw(clk)); + clk_put(clk); + if (!hwclk || !hwclk->clkdm_name) { + dev_err(dev, "no hwclk data\n"); + return NULL; + } + + clkdm = clkdm_lookup(hwclk->clkdm_name); + if (!clkdm) { + dev_err(dev, "clkdm not found: %s\n", hwclk->clkdm_name); + return NULL; + } + + pwrdm = clkdm_get_pwrdm(clkdm); + if (!pwrdm) { + dev_err(dev, "pwrdm not found: %s\n", clkdm->name); + return NULL; + } + + entry = kmalloc_obj(*entry); + if (entry) { + entry->dev = dev; + entry->pwrdm = pwrdm; + spin_lock_irqsave(&iommu_lock, flags); + list_add(&entry->node, &cache); + spin_unlock_irqrestore(&iommu_lock, flags); + } + + return pwrdm; +} + +int omap_iommu_set_pwrdm_constraint(struct platform_device *pdev, bool request, + u8 *pwrst) +{ + struct powerdomain *pwrdm; + u8 next_pwrst; + int ret = 0; + + pwrdm = _get_pwrdm(&pdev->dev); + if (!pwrdm) + return -ENODEV; + + if (request) { + *pwrst = pwrdm_read_next_pwrst(pwrdm); + omap_iommu_dra7_emu_swsup_config(pdev, true); + } + + if (*pwrst > PWRDM_POWER_RET) + goto out; + + next_pwrst = request ? PWRDM_POWER_ON : *pwrst; + + ret = pwrdm_set_next_pwrst(pwrdm, next_pwrst); + +out: + if (!request) + omap_iommu_dra7_emu_swsup_config(pdev, false); + + return ret; +} diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c new file mode 100644 index 000000000..f18ef45e2 --- /dev/null +++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c @@ -0,0 +1,501 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP MPUSS low power code + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * OMAP4430 MPUSS mainly consists of dual Cortex-A9 with per-CPU + * Local timer and Watchdog, GIC, SCU, PL310 L2 cache controller, + * CPU0 and CPU1 LPRM modules. + * CPU0, CPU1 and MPUSS each have there own power domain and + * hence multiple low power combinations of MPUSS are possible. + * + * The CPU0 and CPU1 can't support Closed switch Retention (CSWR) + * because the mode is not supported by hw constraints of dormant + * mode. While waking up from the dormant mode, a reset signal + * to the Cortex-A9 processor must be asserted by the external + * power controller. + * + * With architectural inputs and hardware recommendations, only + * below modes are supported from power gain vs latency point of view. + * + * CPU0 CPU1 MPUSS + * ---------------------------------------------- + * ON ON ON + * ON(Inactive) OFF ON(Inactive) + * OFF OFF CSWR + * OFF OFF OSWR + * OFF OFF OFF(Device OFF *TBD) + * ---------------------------------------------- + * + * Note: CPU0 is the master core and it is the last CPU to go down + * and first to wake-up when MPUSS low power states are excercised + */ + +#include <linux/cpuidle.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/errno.h> +#include <linux/linkage.h> +#include <linux/smp.h> + +#include <asm/cacheflush.h> +#include <asm/tlbflush.h> +#include <asm/smp_scu.h> +#include <asm/suspend.h> +#include <asm/virt.h> +#include <asm/hardware/cache-l2x0.h> + +#include "soc.h" +#include "common.h" +#include "omap44xx.h" +#include "omap4-sar-layout.h" +#include "pm.h" +#include "prcm_mpu44xx.h" +#include "prcm_mpu54xx.h" +#include "prminst44xx.h" +#include "prcm44xx.h" +#include "prm44xx.h" +#include "prm-regbits-44xx.h" + +static void __iomem *sar_base; +static u32 old_cpu1_ns_pa_addr; + +#if defined(CONFIG_PM) && defined(CONFIG_SMP) + +struct omap4_cpu_pm_info { + struct powerdomain *pwrdm; + void __iomem *scu_sar_addr; + void __iomem *wkup_sar_addr; + void __iomem *l2x0_sar_addr; +}; + +/** + * struct cpu_pm_ops - CPU pm operations + * @finish_suspend: CPU suspend finisher function pointer + * @resume: CPU resume function pointer + * @scu_prepare: CPU Snoop Control program function pointer + * @hotplug_restart: CPU restart function pointer + * + * Structure holds functions pointer for CPU low power operations like + * suspend, resume and scu programming. + */ +struct cpu_pm_ops { + int (*finish_suspend)(unsigned long cpu_state); + void (*resume)(void); + void (*scu_prepare)(unsigned int cpu_id, unsigned int cpu_state); + void (*hotplug_restart)(void); +}; + +static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info); +static struct powerdomain *mpuss_pd; +static u32 cpu_context_offset; + +static int default_finish_suspend(unsigned long cpu_state) +{ + omap_do_wfi(); + return 0; +} + +static void dummy_cpu_resume(void) +{} + +static void dummy_scu_prepare(unsigned int cpu_id, unsigned int cpu_state) +{} + +static struct cpu_pm_ops omap_pm_ops = { + .finish_suspend = default_finish_suspend, + .resume = dummy_cpu_resume, + .scu_prepare = dummy_scu_prepare, + .hotplug_restart = dummy_cpu_resume, +}; + +/* + * Program the wakeup routine address for the CPU0 and CPU1 + * used for OFF or DORMANT wakeup. + */ +static inline void set_cpu_wakeup_addr(unsigned int cpu_id, u32 addr) +{ + struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id); + + if (pm_info->wkup_sar_addr) + writel_relaxed(addr, pm_info->wkup_sar_addr); +} + +/* + * Store the SCU power status value to scratchpad memory + */ +static void scu_pwrst_prepare(unsigned int cpu_id, unsigned int cpu_state) +{ + struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id); + u32 scu_pwr_st; + + switch (cpu_state) { + case PWRDM_POWER_RET: + scu_pwr_st = SCU_PM_DORMANT; + break; + case PWRDM_POWER_OFF: + scu_pwr_st = SCU_PM_POWEROFF; + break; + case PWRDM_POWER_ON: + case PWRDM_POWER_INACTIVE: + default: + scu_pwr_st = SCU_PM_NORMAL; + break; + } + + if (pm_info->scu_sar_addr) + writel_relaxed(scu_pwr_st, pm_info->scu_sar_addr); +} + +/* Helper functions for MPUSS OSWR */ +static inline void mpuss_clear_prev_logic_pwrst(void) +{ + u32 reg; + + reg = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION, + OMAP4430_PRM_MPU_INST, OMAP4_RM_MPU_MPU_CONTEXT_OFFSET); + omap4_prminst_write_inst_reg(reg, OMAP4430_PRM_PARTITION, + OMAP4430_PRM_MPU_INST, OMAP4_RM_MPU_MPU_CONTEXT_OFFSET); +} + +static inline void cpu_clear_prev_logic_pwrst(unsigned int cpu_id) +{ + u32 reg; + + if (cpu_id) { + reg = omap4_prcm_mpu_read_inst_reg(OMAP4430_PRCM_MPU_CPU1_INST, + cpu_context_offset); + omap4_prcm_mpu_write_inst_reg(reg, OMAP4430_PRCM_MPU_CPU1_INST, + cpu_context_offset); + } else { + reg = omap4_prcm_mpu_read_inst_reg(OMAP4430_PRCM_MPU_CPU0_INST, + cpu_context_offset); + omap4_prcm_mpu_write_inst_reg(reg, OMAP4430_PRCM_MPU_CPU0_INST, + cpu_context_offset); + } +} + +/* + * Store the CPU cluster state for L2X0 low power operations. + */ +static void l2x0_pwrst_prepare(unsigned int cpu_id, unsigned int save_state) +{ + struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id); + + if (pm_info->l2x0_sar_addr) + writel_relaxed(save_state, pm_info->l2x0_sar_addr); +} + +/* + * Save the L2X0 AUXCTRL and POR value to SAR memory. Its used to + * in every restore MPUSS OFF path. + */ +#ifdef CONFIG_CACHE_L2X0 +static void __init save_l2x0_context(void) +{ + void __iomem *l2x0_base = omap4_get_l2cache_base(); + + if (l2x0_base && sar_base) { + writel_relaxed(l2x0_saved_regs.aux_ctrl, + sar_base + L2X0_AUXCTRL_OFFSET); + writel_relaxed(l2x0_saved_regs.prefetch_ctrl, + sar_base + L2X0_PREFETCH_CTRL_OFFSET); + } +} +#else +static void __init save_l2x0_context(void) +{} +#endif + +/** + * omap4_enter_lowpower: OMAP4 MPUSS Low Power Entry Function + * The purpose of this function is to manage low power programming + * of OMAP4 MPUSS subsystem + * @cpu : CPU ID + * @power_state: Low power state. + * @rcuidle: RCU needs to be idled + * + * MPUSS states for the context save: + * save_state = + * 0 - Nothing lost and no need to save: MPUSS INACTIVE + * 1 - CPUx L1 and logic lost: MPUSS CSWR + * 2 - CPUx L1 and logic lost + GIC lost: MPUSS OSWR + * 3 - CPUx L1 and logic lost + GIC + L2 lost: DEVICE OFF + */ +__cpuidle int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state, + bool rcuidle) +{ + struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu); + unsigned int save_state = 0, cpu_logic_state = PWRDM_POWER_RET; + + if (omap_rev() == OMAP4430_REV_ES1_0) + return -ENXIO; + + switch (power_state) { + case PWRDM_POWER_ON: + case PWRDM_POWER_INACTIVE: + save_state = 0; + break; + case PWRDM_POWER_OFF: + cpu_logic_state = PWRDM_POWER_OFF; + save_state = 1; + break; + case PWRDM_POWER_RET: + if (IS_PM44XX_ERRATUM(PM_OMAP4_CPU_OSWR_DISABLE)) + save_state = 0; + break; + default: + /* + * CPUx CSWR is invalid hardware state. Also CPUx OSWR + * doesn't make much scense, since logic is lost and $L1 + * needs to be cleaned because of coherency. This makes + * CPUx OSWR equivalent to CPUX OFF and hence not supported + */ + WARN_ON(1); + return -ENXIO; + } + + pwrdm_pre_transition(NULL); + + /* + * Check MPUSS next state and save interrupt controller if needed. + * In MPUSS OSWR or device OFF, interrupt controller contest is lost. + */ + mpuss_clear_prev_logic_pwrst(); + if ((pwrdm_read_next_pwrst(mpuss_pd) == PWRDM_POWER_RET) && + (pwrdm_read_logic_retst(mpuss_pd) == PWRDM_POWER_OFF)) + save_state = 2; + + cpu_clear_prev_logic_pwrst(cpu); + pwrdm_set_next_pwrst(pm_info->pwrdm, power_state); + pwrdm_set_logic_retst(pm_info->pwrdm, cpu_logic_state); + + if (rcuidle) + ct_cpuidle_enter(); + + set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.resume)); + omap_pm_ops.scu_prepare(cpu, power_state); + l2x0_pwrst_prepare(cpu, save_state); + + /* + * Call low level function with targeted low power state. + */ + if (save_state) + cpu_suspend(save_state, omap_pm_ops.finish_suspend); + else + omap_pm_ops.finish_suspend(save_state); + + if (IS_PM44XX_ERRATUM(PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD) && cpu) + gic_dist_enable(); + + if (rcuidle) + ct_cpuidle_exit(); + + /* + * Restore the CPUx power state to ON otherwise CPUx + * power domain can transitions to programmed low power + * state while doing WFI outside the low powe code. On + * secure devices, CPUx does WFI which can result in + * domain transition + */ + pwrdm_set_next_pwrst(pm_info->pwrdm, PWRDM_POWER_ON); + + pwrdm_post_transition(NULL); + + return 0; +} + +/** + * omap4_hotplug_cpu: OMAP4 CPU hotplug entry + * @cpu : CPU ID + * @power_state: CPU low power state. + */ +int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state) +{ + struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu); + unsigned int cpu_state = 0; + + if (omap_rev() == OMAP4430_REV_ES1_0) + return -ENXIO; + + /* Use the achievable power state for the domain */ + power_state = pwrdm_get_valid_lp_state(pm_info->pwrdm, + false, power_state); + + if (power_state == PWRDM_POWER_OFF) + cpu_state = 1; + + pwrdm_clear_all_prev_pwrst(pm_info->pwrdm); + pwrdm_set_next_pwrst(pm_info->pwrdm, power_state); + set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.hotplug_restart)); + omap_pm_ops.scu_prepare(cpu, power_state); + + /* + * CPU never returns back if targeted power state is OFF mode. + * CPU ONLINE follows normal CPU ONLINE ptah via + * omap4_secondary_startup(). + */ + omap_pm_ops.finish_suspend(cpu_state); + + pwrdm_set_next_pwrst(pm_info->pwrdm, PWRDM_POWER_ON); + return 0; +} + + +/* + * Enable Mercury Fast HG retention mode by default. + */ +static void enable_mercury_retention_mode(void) +{ + u32 reg; + + reg = omap4_prcm_mpu_read_inst_reg(OMAP54XX_PRCM_MPU_DEVICE_INST, + OMAP54XX_PRCM_MPU_PRM_PSCON_COUNT_OFFSET); + /* Enable HG_EN, HG_RAMPUP = fast mode */ + reg |= BIT(24) | BIT(25); + omap4_prcm_mpu_write_inst_reg(reg, OMAP54XX_PRCM_MPU_DEVICE_INST, + OMAP54XX_PRCM_MPU_PRM_PSCON_COUNT_OFFSET); +} + +/* + * Initialise OMAP4 MPUSS + */ +int __init omap4_mpuss_init(void) +{ + struct omap4_cpu_pm_info *pm_info; + + if (omap_rev() == OMAP4430_REV_ES1_0) { + WARN(1, "Power Management not supported on OMAP4430 ES1.0\n"); + return -ENODEV; + } + + /* Initilaise per CPU PM information */ + pm_info = &per_cpu(omap4_pm_info, 0x0); + if (sar_base) { + pm_info->scu_sar_addr = sar_base + SCU_OFFSET0; + if (cpu_is_omap44xx()) + pm_info->wkup_sar_addr = sar_base + + CPU0_WAKEUP_NS_PA_ADDR_OFFSET; + else + pm_info->wkup_sar_addr = sar_base + + OMAP5_CPU0_WAKEUP_NS_PA_ADDR_OFFSET; + pm_info->l2x0_sar_addr = sar_base + L2X0_SAVE_OFFSET0; + } + pm_info->pwrdm = pwrdm_lookup("cpu0_pwrdm"); + if (!pm_info->pwrdm) { + pr_err("Lookup failed for CPU0 pwrdm\n"); + return -ENODEV; + } + + /* Clear CPU previous power domain state */ + pwrdm_clear_all_prev_pwrst(pm_info->pwrdm); + cpu_clear_prev_logic_pwrst(0); + + /* Initialise CPU0 power domain state to ON */ + pwrdm_set_next_pwrst(pm_info->pwrdm, PWRDM_POWER_ON); + + pm_info = &per_cpu(omap4_pm_info, 0x1); + if (sar_base) { + pm_info->scu_sar_addr = sar_base + SCU_OFFSET1; + if (cpu_is_omap44xx()) + pm_info->wkup_sar_addr = sar_base + + CPU1_WAKEUP_NS_PA_ADDR_OFFSET; + else + pm_info->wkup_sar_addr = sar_base + + OMAP5_CPU1_WAKEUP_NS_PA_ADDR_OFFSET; + pm_info->l2x0_sar_addr = sar_base + L2X0_SAVE_OFFSET1; + } + + pm_info->pwrdm = pwrdm_lookup("cpu1_pwrdm"); + if (!pm_info->pwrdm) { + pr_err("Lookup failed for CPU1 pwrdm\n"); + return -ENODEV; + } + + /* Clear CPU previous power domain state */ + pwrdm_clear_all_prev_pwrst(pm_info->pwrdm); + cpu_clear_prev_logic_pwrst(1); + + /* Initialise CPU1 power domain state to ON */ + pwrdm_set_next_pwrst(pm_info->pwrdm, PWRDM_POWER_ON); + + mpuss_pd = pwrdm_lookup("mpu_pwrdm"); + if (!mpuss_pd) { + pr_err("Failed to lookup MPUSS power domain\n"); + return -ENODEV; + } + pwrdm_clear_all_prev_pwrst(mpuss_pd); + mpuss_clear_prev_logic_pwrst(); + + if (sar_base) { + /* Save device type on scratchpad for low level code to use */ + writel_relaxed((omap_type() != OMAP2_DEVICE_TYPE_GP) ? 1 : 0, + sar_base + OMAP_TYPE_OFFSET); + save_l2x0_context(); + } + + if (cpu_is_omap44xx()) { + omap_pm_ops.finish_suspend = omap4_finish_suspend; + omap_pm_ops.resume = omap4_cpu_resume; + omap_pm_ops.scu_prepare = scu_pwrst_prepare; + omap_pm_ops.hotplug_restart = omap4_secondary_startup; + cpu_context_offset = OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET; + } else if (soc_is_omap54xx() || soc_is_dra7xx()) { + cpu_context_offset = OMAP54XX_RM_CPU0_CPU0_CONTEXT_OFFSET; + enable_mercury_retention_mode(); + } + + if (cpu_is_omap446x()) + omap_pm_ops.hotplug_restart = omap4460_secondary_startup; + + return 0; +} + +#endif + +u32 omap4_get_cpu1_ns_pa_addr(void) +{ + return old_cpu1_ns_pa_addr; +} + +/* + * For kexec, we must set CPU1_WAKEUP_NS_PA_ADDR to point to + * current kernel's secondary_startup() early before + * clockdomains_init(). Otherwise clockdomain_init() can + * wake CPU1 and cause a hang. + */ +void __init omap4_mpuss_early_init(void) +{ + unsigned long startup_pa; + void __iomem *ns_pa_addr; + + if (!(soc_is_omap44xx() || soc_is_omap54xx())) + return; + + sar_base = omap4_get_sar_ram_base(); + + /* Save old NS_PA_ADDR for validity checks later on */ + if (soc_is_omap44xx()) + ns_pa_addr = sar_base + CPU1_WAKEUP_NS_PA_ADDR_OFFSET; + else + ns_pa_addr = sar_base + OMAP5_CPU1_WAKEUP_NS_PA_ADDR_OFFSET; + old_cpu1_ns_pa_addr = readl_relaxed(ns_pa_addr); + + if (soc_is_omap443x()) + startup_pa = __pa_symbol(omap4_secondary_startup); + else if (soc_is_omap446x()) + startup_pa = __pa_symbol(omap4460_secondary_startup); + else if ((__boot_cpu_mode & MODE_MASK) == HYP_MODE) + startup_pa = __pa_symbol(omap5_secondary_hyp_startup); + else + startup_pa = __pa_symbol(omap5_secondary_startup); + + if (soc_is_omap44xx()) + writel_relaxed(startup_pa, sar_base + + CPU1_WAKEUP_NS_PA_ADDR_OFFSET); + else + writel_relaxed(startup_pa, sar_base + + OMAP5_CPU1_WAKEUP_NS_PA_ADDR_OFFSET); +} diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c new file mode 100644 index 000000000..c2e1aecd0 --- /dev/null +++ b/arch/arm/mach-omap2/omap-secure.c @@ -0,0 +1,256 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP Secure API infrastructure. + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg> + * Copyright (C) 2013 Pali Rohár <pali@kernel.org> + */ + +#include <linux/arm-smccc.h> +#include <linux/cpu_pm.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/memblock.h> +#include <linux/of.h> + +#include <asm/cacheflush.h> +#include <asm/memblock.h> + +#include "common.h" +#include "omap-secure.h" +#include "soc.h" + +static phys_addr_t omap_secure_memblock_base; + +bool optee_available; + +#define OMAP_SIP_SMC_STD_CALL_VAL(func_num) \ + ARM_SMCCC_CALL_VAL(ARM_SMCCC_STD_CALL, ARM_SMCCC_SMC_32, \ + ARM_SMCCC_OWNER_SIP, (func_num)) + +static void __init omap_optee_init_check(void) +{ + struct device_node *np; + + /* + * We only check that the OP-TEE node is present and available. The + * OP-TEE kernel driver is not needed for the type of interaction made + * with OP-TEE here so the driver's status is not checked. + */ + np = of_find_node_by_path("/firmware/optee"); + if (np && of_device_is_available(np)) + optee_available = true; + of_node_put(np); +} + +/** + * omap_secure_dispatcher - Routine to dispatch low power secure + * service routines + * @idx: The HAL API index + * @flag: The flag indicating criticality of operation + * @nargs: Number of valid arguments out of four. + * @arg1, arg2, arg3 args4: Parameters passed to secure API + * + * Return the non-zero error value on failure. + */ +u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2, + u32 arg3, u32 arg4) +{ + static u32 buf[NR_CPUS][5]; + u32 *param; + int cpu; + u32 ret; + + cpu = get_cpu(); + param = buf[cpu]; + + param[0] = nargs; + param[1] = arg1; + param[2] = arg2; + param[3] = arg3; + param[4] = arg4; + + /* + * Secure API needs physical address + * pointer for the parameters + */ + flush_cache_all(); + outer_clean_range(__pa(param), __pa(param + 5)); + ret = omap_smc2(idx, flag, __pa(param)); + + put_cpu(); + + return ret; +} + +void omap_smccc_smc(u32 fn, u32 arg) +{ + struct arm_smccc_res res; + + arm_smccc_smc(OMAP_SIP_SMC_STD_CALL_VAL(fn), arg, + 0, 0, 0, 0, 0, 0, &res); + WARN(res.a0, "Secure function call 0x%08x failed\n", fn); +} + +void omap_smc1(u32 fn, u32 arg) +{ + /* + * If this platform has OP-TEE installed we use ARM SMC calls + * otherwise fall back to the OMAP ROM style calls. + */ + if (optee_available) + omap_smccc_smc(fn, arg); + else + _omap_smc1(fn, arg); +} + +/* Allocate the memory to save secure ram */ +int __init omap_secure_ram_reserve_memblock(void) +{ + u32 size = OMAP_SECURE_RAM_STORAGE; + + size = ALIGN(size, SECTION_SIZE); + omap_secure_memblock_base = arm_memblock_steal(size, SECTION_SIZE); + + return 0; +} + +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) +u32 omap3_save_secure_ram(void *addr, int size) +{ + static u32 param[5]; + u32 ret; + + if (size != OMAP3_SAVE_SECURE_RAM_SZ) + return OMAP3_SAVE_SECURE_RAM_SZ; + + param[0] = 4; /* Number of arguments */ + param[1] = __pa(addr); /* Physical address for saving */ + param[2] = 0; + param[3] = 1; + param[4] = 1; + + ret = save_secure_ram_context(__pa(param)); + + return ret; +} +#endif + +/** + * rx51_secure_dispatcher: Routine to dispatch secure PPA API calls + * @idx: The PPA API index + * @process: Process ID + * @flag: The flag indicating criticality of operation + * @nargs: Number of valid arguments out of four. + * @arg1, arg2, arg3 args4: Parameters passed to secure API + * + * Return the non-zero error value on failure. + * + * NOTE: rx51_secure_dispatcher differs from omap_secure_dispatcher because + * it calling omap_smc3() instead omap_smc2() and param[0] is nargs+1 + */ +static u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs, + u32 arg1, u32 arg2, u32 arg3, u32 arg4) +{ + static u32 param[5]; + u32 ret; + + param[0] = nargs+1; /* RX-51 needs number of arguments + 1 */ + param[1] = arg1; + param[2] = arg2; + param[3] = arg3; + param[4] = arg4; + + /* + * Secure API needs physical address + * pointer for the parameters + */ + local_irq_disable(); + local_fiq_disable(); + flush_cache_all(); + outer_clean_range(__pa(param), __pa(param + 5)); + ret = omap_smc3(idx, process, flag, __pa(param)); + flush_cache_all(); + local_fiq_enable(); + local_irq_enable(); + + return ret; +} + +/** + * rx51_secure_update_aux_cr: Routine to modify the contents of Auxiliary Control Register + * @set_bits: bits to set in ACR + * @clear_bits: bits to clear in ACR + * + * Return the non-zero error value on failure. +*/ +u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits) +{ + u32 acr; + + /* Read ACR */ + asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr)); + acr &= ~clear_bits; + acr |= set_bits; + + return rx51_secure_dispatcher(RX51_PPA_WRITE_ACR, + 0, + FLAG_START_CRITICAL, + 1, acr, 0, 0, 0); +} + +/** + * rx51_secure_rng_call: Routine for HW random generator + */ +u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag) +{ + return rx51_secure_dispatcher(RX51_PPA_HWRNG, + 0, + NO_FLAG, + 3, ptr, count, flag, 0); +} + +void __init omap_secure_init(void) +{ + omap_optee_init_check(); +} + +/* + * Dummy dispatcher call after core OSWR and MPU off. Updates the ROM return + * address after MMU has been re-enabled after CPU1 has been woken up again. + * Otherwise the ROM code will attempt to use the earlier physical return + * address that got set with MMU off when waking up CPU1. Only used on secure + * devices. + */ +static int cpu_notifier(struct notifier_block *nb, unsigned long cmd, void *v) +{ + switch (cmd) { + case CPU_CLUSTER_PM_EXIT: + omap_secure_dispatcher(OMAP4_PPA_SERVICE_0, + FLAG_START_CRITICAL, + 0, 0, 0, 0, 0); + break; + default: + break; + } + + return NOTIFY_OK; +} + +static struct notifier_block secure_notifier_block = { + .notifier_call = cpu_notifier, +}; + +static int __init secure_pm_init(void) +{ + if (omap_type() == OMAP2_DEVICE_TYPE_GP || !soc_is_omap44xx()) + return 0; + + cpu_pm_register_notifier(&secure_notifier_block); + + return 0; +} +omap_arch_initcall(secure_pm_init); diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h new file mode 100644 index 000000000..04b4ba0f5 --- /dev/null +++ b/arch/arm/mach-omap2/omap-secure.h @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * omap-secure.h: OMAP Secure infrastructure header. + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg> + * Copyright (C) 2013 Pali Rohár <pali@kernel.org> + */ +#ifndef OMAP_ARCH_OMAP_SECURE_H +#define OMAP_ARCH_OMAP_SECURE_H + +#include <linux/types.h> + +/* Monitor error code */ +#define API_HAL_RET_VALUE_NS2S_CONVERSION_ERROR 0xFFFFFFFE +#define API_HAL_RET_VALUE_SERVICE_UNKNWON 0xFFFFFFFF + +/* HAL API error codes */ +#define API_HAL_RET_VALUE_OK 0x00 +#define API_HAL_RET_VALUE_FAIL 0x01 + +/* Secure HAL API flags */ +#define FLAG_START_CRITICAL 0x4 +#define FLAG_IRQFIQ_MASK 0x3 +#define FLAG_IRQ_ENABLE 0x2 +#define FLAG_FIQ_ENABLE 0x1 +#define NO_FLAG 0x0 + +/* Maximum Secure memory storage size */ +#define OMAP_SECURE_RAM_STORAGE (88 * SZ_1K) + +#define OMAP3_SAVE_SECURE_RAM_SZ 0x803F + +/* Secure low power HAL API index */ +#define OMAP4_HAL_SAVESECURERAM_INDEX 0x1a +#define OMAP4_HAL_SAVEHW_INDEX 0x1b +#define OMAP4_HAL_SAVEALL_INDEX 0x1c +#define OMAP4_HAL_SAVEGIC_INDEX 0x1d + +/* Secure Monitor mode APIs */ +#define OMAP4_MON_SCU_PWR_INDEX 0x108 +#define OMAP4_MON_L2X0_DBG_CTRL_INDEX 0x100 +#define OMAP4_MON_L2X0_CTRL_INDEX 0x102 +#define OMAP4_MON_L2X0_AUXCTRL_INDEX 0x109 +#define OMAP4_MON_L2X0_PREFETCH_INDEX 0x113 + +#define OMAP5_DRA7_MON_SET_CNTFRQ_INDEX 0x109 +#define OMAP5_MON_AMBA_IF_INDEX 0x108 +#define OMAP5_DRA7_MON_SET_ACR_INDEX 0x107 + +/* Secure PPA(Primary Protected Application) APIs */ +#define OMAP4_PPA_SERVICE_0 0x21 +#define OMAP4_PPA_L2_POR_INDEX 0x23 +#define OMAP4_PPA_CPU_ACTRL_SMP_INDEX 0x25 + +#define AM43xx_PPA_SVC_PM_SUSPEND 0x71 +#define AM43xx_PPA_SVC_PM_RESUME 0x72 + +/* Secure RX-51 PPA (Primary Protected Application) APIs */ +#define RX51_PPA_HWRNG 29 +#define RX51_PPA_L2_INVAL 40 +#define RX51_PPA_WRITE_ACR 42 + +#ifndef __ASSEMBLER__ + +extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, + u32 arg1, u32 arg2, u32 arg3, u32 arg4); +extern void omap_smccc_smc(u32 fn, u32 arg); +extern void omap_smc1(u32 fn, u32 arg); +extern u32 omap_smc2(u32 id, u32 flag, u32 pargs); +extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs); +extern int omap_secure_ram_reserve_memblock(void); +extern u32 save_secure_ram_context(u32 args_pa); +extern u32 omap3_save_secure_ram(void *save_regs, int size); + +extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits); +extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag); + +extern bool optee_available; +void omap_secure_init(void); + +#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER +void set_cntfreq(void); +#else +static inline void set_cntfreq(void) +{ +} +#endif + +#endif /* __ASSEMBLER__ */ +#endif /* OMAP_ARCH_OMAP_SECURE_H */ diff --git a/arch/arm/mach-omap2/omap-smc.S b/arch/arm/mach-omap2/omap-smc.S new file mode 100644 index 000000000..fe3b54782 --- /dev/null +++ b/arch/arm/mach-omap2/omap-smc.S @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP34xx and OMAP44xx secure APIs file. + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Written by Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg> + * Copyright (C) 2013 Pali Rohár <pali@kernel.org> + */ + +#include <linux/linkage.h> + +/* + * This is common routine to manage secure monitor API + * used to modify the PL310 secure registers. + * 'r0' contains the value to be modified and 'r12' contains + * the monitor API number. It uses few CPU registers + * internally and hence they need be backed up including + * link register "lr". + * Function signature : void _omap_smc1(u32 fn, u32 arg) + */ + .arch armv7-a + .arch_extension sec +ENTRY(_omap_smc1) + stmfd sp!, {r2-r12, lr} + mov r12, r0 + mov r0, r1 + dsb + smc #0 + ldmfd sp!, {r2-r12, pc} +ENDPROC(_omap_smc1) + +/** + * u32 omap_smc2(u32 id, u32 flag, u32 pargs) + * Low level common routine for secure HAL and PPA APIs. + * @id: Application ID of HAL APIs + * @flag: Flag to indicate the criticality of operation + * @pargs: Physical address of parameter list starting + * with number of parametrs + */ +ENTRY(omap_smc2) + stmfd sp!, {r4-r12, lr} + mov r3, r2 + mov r2, r1 + mov r1, #0x0 @ Process ID + mov r6, #0xff + mov r12, #0x00 @ Secure Service ID + mov r7, #0 + mcr p15, 0, r7, c7, c5, 6 + dsb + dmb + smc #0 + ldmfd sp!, {r4-r12, pc} +ENDPROC(omap_smc2) + +/** + * u32 omap_smc3(u32 service_id, u32 process_id, u32 flag, u32 pargs) + * Low level common routine for secure HAL and PPA APIs via smc #1 + * r0 - @service_id: Secure Service ID + * r1 - @process_id: Process ID + * r2 - @flag: Flag to indicate the criticality of operation + * r3 - @pargs: Physical address of parameter list + */ +ENTRY(omap_smc3) + stmfd sp!, {r4-r11, lr} + mov r12, r0 @ Copy the secure service ID + mov r6, #0xff @ Indicate new Task call + dsb @ Memory Barrier (not sure if needed, copied from omap_smc2) + smc #1 @ Call PPA service + ldmfd sp!, {r4-r11, pc} +ENDPROC(omap_smc3) + +ENTRY(omap_modify_auxcoreboot0) + stmfd sp!, {r1-r12, lr} + ldr r12, =0x104 + dsb + smc #0 + ldmfd sp!, {r1-r12, pc} +ENDPROC(omap_modify_auxcoreboot0) + +ENTRY(omap_auxcoreboot_addr) + stmfd sp!, {r2-r12, lr} + ldr r12, =0x105 + dsb + smc #0 + ldmfd sp!, {r2-r12, pc} +ENDPROC(omap_auxcoreboot_addr) + +ENTRY(omap_read_auxcoreboot0) + stmfd sp!, {r2-r12, lr} + ldr r12, =0x103 + dsb + smc #0 + ldmfd sp!, {r2-r12, pc} +ENDPROC(omap_read_auxcoreboot0) diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c new file mode 100644 index 000000000..570a987e6 --- /dev/null +++ b/arch/arm/mach-omap2/omap-smp.c @@ -0,0 +1,417 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 SMP source file. It contains platform specific functions + * needed for the linux smp kernel. + * + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Platform file needed for the OMAP4 SMP. This file is based on arm + * realview smp platform. + * * Copyright (c) 2002 ARM Limited. + */ +#include <linux/init.h> +#include <linux/device.h> +#include <linux/smp.h> +#include <linux/io.h> +#include <linux/irqchip/arm-gic.h> + +#include <asm/sections.h> +#include <asm/smp_scu.h> +#include <asm/virt.h> + +#include "omap-secure.h" +#include "omap-wakeupgen.h" +#include <asm/cputype.h> + +#include "soc.h" +#include "iomap.h" +#include "common.h" +#include "clockdomain.h" +#include "pm.h" + +#define CPU_MASK 0xff0ffff0 +#define CPU_CORTEX_A9 0x410FC090 +#define CPU_CORTEX_A15 0x410FC0F0 + +#define OMAP5_CORE_COUNT 0x2 + +#define AUX_CORE_BOOT0_GP_RELEASE 0x020 +#define AUX_CORE_BOOT0_HS_RELEASE 0x200 + +struct omap_smp_config { + unsigned long cpu1_rstctrl_pa; + void __iomem *cpu1_rstctrl_va; + void __iomem *scu_base; + void __iomem *wakeupgen_base; + void *startup_addr; +}; + +static struct omap_smp_config cfg; + +static const struct omap_smp_config omap443x_cfg __initconst = { + .cpu1_rstctrl_pa = 0x4824380c, + .startup_addr = omap4_secondary_startup, +}; + +static const struct omap_smp_config omap446x_cfg __initconst = { + .cpu1_rstctrl_pa = 0x4824380c, + .startup_addr = omap4460_secondary_startup, +}; + +static const struct omap_smp_config omap5_cfg __initconst = { + .cpu1_rstctrl_pa = 0x48243810, + .startup_addr = omap5_secondary_startup, +}; + +void __iomem *omap4_get_scu_base(void) +{ + return cfg.scu_base; +} + +#ifdef CONFIG_OMAP5_ERRATA_801819 +static void omap5_erratum_workaround_801819(void) +{ + u32 acr, revidr; + u32 acr_mask; + + /* REVIDR[3] indicates erratum fix available on silicon */ + asm volatile ("mrc p15, 0, %0, c0, c0, 6" : "=r" (revidr)); + if (revidr & (0x1 << 3)) + return; + + asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr)); + /* + * BIT(27) - Disables streaming. All write-allocate lines allocate in + * the L1 or L2 cache. + * BIT(25) - Disables streaming. All write-allocate lines allocate in + * the L1 cache. + */ + acr_mask = (0x3 << 25) | (0x3 << 27); + /* do we already have it done.. if yes, skip expensive smc */ + if ((acr & acr_mask) == acr_mask) + return; + + acr |= acr_mask; + omap_smc1(OMAP5_DRA7_MON_SET_ACR_INDEX, acr); + + pr_debug("%s: ARM erratum workaround 801819 applied on CPU%d\n", + __func__, smp_processor_id()); +} +#else +static inline void omap5_erratum_workaround_801819(void) { } +#endif + +#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR +/* + * Configure ACR and enable ACTLR[0] (Enable invalidates of BTB with + * ICIALLU) to activate the workaround for secondary Core. + * NOTE: it is assumed that the primary core's configuration is done + * by the boot loader (kernel will detect a misconfiguration and complain + * if this is not done). + * + * In General Purpose(GP) devices, ACR bit settings can only be done + * by ROM code in "secure world" using the smc call and there is no + * option to update the "firmware" on such devices. This also works for + * High security(HS) devices, as a backup option in case the + * "update" is not done in the "security firmware". + */ +static void omap5_secondary_harden_predictor(void) +{ + u32 acr, acr_mask; + + asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr)); + + /* + * ACTLR[0] (Enable invalidates of BTB with ICIALLU) + */ + acr_mask = BIT(0); + + /* Do we already have it done.. if yes, skip expensive smc */ + if ((acr & acr_mask) == acr_mask) + return; + + acr |= acr_mask; + omap_smc1(OMAP5_DRA7_MON_SET_ACR_INDEX, acr); + + pr_debug("%s: ARM ACR setup for CVE_2017_5715 applied on CPU%d\n", + __func__, smp_processor_id()); +} +#else +static inline void omap5_secondary_harden_predictor(void) { } +#endif + +static void omap4_secondary_init(unsigned int cpu) +{ + /* + * Configure ACTRL and enable NS SMP bit access on CPU1 on HS device. + * OMAP44XX EMU/HS devices - CPU0 SMP bit access is enabled in PPA + * init and for CPU1, a secure PPA API provided. CPU0 must be ON + * while executing NS_SMP API on CPU1 and PPA version must be 1.4.0+. + * OMAP443X GP devices- SMP bit isn't accessible. + * OMAP446X GP devices - SMP bit access is enabled on both CPUs. + */ + if (soc_is_omap443x() && (omap_type() != OMAP2_DEVICE_TYPE_GP)) + omap_secure_dispatcher(OMAP4_PPA_CPU_ACTRL_SMP_INDEX, + 4, 0, 0, 0, 0, 0); + + if (soc_is_omap54xx() || soc_is_dra7xx()) { + /* + * Configure the CNTFRQ register for the secondary cpu's which + * indicates the frequency of the cpu local timers. + */ + set_cntfreq(); + /* Configure ACR to disable streaming WA for 801819 */ + omap5_erratum_workaround_801819(); + /* Enable ACR to allow for ICUALLU workaround */ + omap5_secondary_harden_predictor(); + } +} + +static int omap4_boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + static struct clockdomain *cpu1_clkdm; + static bool booted; + static struct powerdomain *cpu1_pwrdm; + + /* + * Update the AuxCoreBoot0 with boot state for secondary core. + * omap4_secondary_startup() routine will hold the secondary core till + * the AuxCoreBoot1 register is updated with cpu state + * A barrier is added to ensure that write buffer is drained + */ + if (omap_secure_apis_support()) + omap_modify_auxcoreboot0(AUX_CORE_BOOT0_HS_RELEASE, + 0xfffffdff); + else + writel_relaxed(AUX_CORE_BOOT0_GP_RELEASE, + cfg.wakeupgen_base + OMAP_AUX_CORE_BOOT_0); + + if (!cpu1_clkdm && !cpu1_pwrdm) { + cpu1_clkdm = clkdm_lookup("mpu1_clkdm"); + cpu1_pwrdm = pwrdm_lookup("cpu1_pwrdm"); + } + + /* + * The SGI(Software Generated Interrupts) are not wakeup capable + * from low power states. This is known limitation on OMAP4 and + * needs to be worked around by using software forced clockdomain + * wake-up. To wakeup CPU1, CPU0 forces the CPU1 clockdomain to + * software force wakeup. The clockdomain is then put back to + * hardware supervised mode. + * More details can be found in OMAP4430 TRM - Version J + * Section : + * 4.3.4.2 Power States of CPU0 and CPU1 + */ + if (booted && cpu1_pwrdm && cpu1_clkdm) { + /* + * GIC distributor control register has changed between + * CortexA9 r1pX and r2pX. The Control Register secure + * banked version is now composed of 2 bits: + * bit 0 == Secure Enable + * bit 1 == Non-Secure Enable + * The Non-Secure banked register has not changed + * Because the ROM Code is based on the r1pX GIC, the CPU1 + * GIC restoration will cause a problem to CPU0 Non-Secure SW. + * The workaround must be: + * 1) Before doing the CPU1 wakeup, CPU0 must disable + * the GIC distributor + * 2) CPU1 must re-enable the GIC distributor on + * it's wakeup path. + */ + if (IS_PM44XX_ERRATUM(PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD)) { + local_irq_disable(); + gic_dist_disable(); + } + + /* + * Ensure that CPU power state is set to ON to avoid CPU + * powerdomain transition on wfi + */ + clkdm_deny_idle_nolock(cpu1_clkdm); + pwrdm_set_next_pwrst(cpu1_pwrdm, PWRDM_POWER_ON); + clkdm_allow_idle_nolock(cpu1_clkdm); + + if (IS_PM44XX_ERRATUM(PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD)) { + while (gic_dist_disabled()) { + udelay(1); + cpu_relax(); + } + gic_timer_retrigger(); + local_irq_enable(); + } + } else { + dsb_sev(); + booted = true; + } + + arch_send_wakeup_ipi_mask(cpumask_of(cpu)); + + return 0; +} + +/* + * Initialise the CPU possible map early - this describes the CPUs + * which may be present or become present in the system. + */ +static void __init omap4_smp_init_cpus(void) +{ + unsigned int i = 0, ncores = 1, cpu_id; + + /* Use ARM cpuid check here, as SoC detection will not work so early */ + cpu_id = read_cpuid_id() & CPU_MASK; + if (cpu_id == CPU_CORTEX_A9) { + /* + * Currently we can't call ioremap here because + * SoC detection won't work until after init_early. + */ + cfg.scu_base = OMAP2_L4_IO_ADDRESS(scu_a9_get_base()); + BUG_ON(!cfg.scu_base); + ncores = scu_get_core_count(cfg.scu_base); + } else if (cpu_id == CPU_CORTEX_A15) { + ncores = OMAP5_CORE_COUNT; + } + + /* sanity check */ + if (ncores > nr_cpu_ids) { + pr_warn("SMP: %u cores greater than maximum (%u), clipping\n", + ncores, nr_cpu_ids); + ncores = nr_cpu_ids; + } + + for (i = 0; i < ncores; i++) + set_cpu_possible(i, true); +} + +/* + * For now, just make sure the start-up address is not within the booting + * kernel space as that means we just overwrote whatever secondary_startup() + * code there was. + */ +static bool __init omap4_smp_cpu1_startup_valid(unsigned long addr) +{ + if ((addr >= __pa(PAGE_OFFSET)) && (addr <= __pa(__bss_start))) + return false; + + return true; +} + +/* + * We may need to reset CPU1 before configuring, otherwise kexec boot can end + * up trying to use old kernel startup address or suspend-resume will + * occasionally fail to bring up CPU1 on 4430 if CPU1 fails to enter deeper + * idle states. + */ +static void __init omap4_smp_maybe_reset_cpu1(struct omap_smp_config *c) +{ + unsigned long cpu1_startup_pa, cpu1_ns_pa_addr; + bool needs_reset = false; + u32 released; + + if (omap_secure_apis_support()) + released = omap_read_auxcoreboot0() & AUX_CORE_BOOT0_HS_RELEASE; + else + released = readl_relaxed(cfg.wakeupgen_base + + OMAP_AUX_CORE_BOOT_0) & + AUX_CORE_BOOT0_GP_RELEASE; + if (released) { + pr_warn("smp: CPU1 not parked?\n"); + + return; + } + + cpu1_startup_pa = readl_relaxed(cfg.wakeupgen_base + + OMAP_AUX_CORE_BOOT_1); + + /* Did the configured secondary_startup() get overwritten? */ + if (!omap4_smp_cpu1_startup_valid(cpu1_startup_pa)) + needs_reset = true; + + /* + * If omap4 or 5 has NS_PA_ADDR configured, CPU1 may be in a + * deeper idle state in WFI and will wake to an invalid address. + */ + if ((soc_is_omap44xx() || soc_is_omap54xx())) { + cpu1_ns_pa_addr = omap4_get_cpu1_ns_pa_addr(); + if (!omap4_smp_cpu1_startup_valid(cpu1_ns_pa_addr)) + needs_reset = true; + } else { + cpu1_ns_pa_addr = 0; + } + + if (!needs_reset || !c->cpu1_rstctrl_va) + return; + + pr_info("smp: CPU1 parked within kernel, needs reset (0x%lx 0x%lx)\n", + cpu1_startup_pa, cpu1_ns_pa_addr); + + writel_relaxed(1, c->cpu1_rstctrl_va); + readl_relaxed(c->cpu1_rstctrl_va); + writel_relaxed(0, c->cpu1_rstctrl_va); +} + +static void __init omap4_smp_prepare_cpus(unsigned int max_cpus) +{ + const struct omap_smp_config *c = NULL; + + if (soc_is_omap443x()) + c = &omap443x_cfg; + else if (soc_is_omap446x()) + c = &omap446x_cfg; + else if (soc_is_dra74x() || soc_is_omap54xx() || soc_is_dra76x()) + c = &omap5_cfg; + + if (!c) { + pr_err("%s Unknown SMP SoC?\n", __func__); + return; + } + + /* Must preserve cfg.scu_base set earlier */ + cfg.cpu1_rstctrl_pa = c->cpu1_rstctrl_pa; + cfg.startup_addr = c->startup_addr; + cfg.wakeupgen_base = omap_get_wakeupgen_base(); + + if (soc_is_dra74x() || soc_is_omap54xx() || soc_is_dra76x()) { + if ((__boot_cpu_mode & MODE_MASK) == HYP_MODE) + cfg.startup_addr = omap5_secondary_hyp_startup; + omap5_erratum_workaround_801819(); + } + + cfg.cpu1_rstctrl_va = ioremap(cfg.cpu1_rstctrl_pa, 4); + if (!cfg.cpu1_rstctrl_va) + return; + + /* + * Initialise the SCU and wake up the secondary core using + * wakeup_secondary(). + */ + if (cfg.scu_base) + scu_enable(cfg.scu_base); + + omap4_smp_maybe_reset_cpu1(&cfg); + + /* + * Write the address of secondary startup routine into the + * AuxCoreBoot1 where ROM code will jump and start executing + * on secondary core once out of WFE + * A barrier is added to ensure that write buffer is drained + */ + if (omap_secure_apis_support()) + omap_auxcoreboot_addr(__pa_symbol(cfg.startup_addr)); + else + writel_relaxed(__pa_symbol(cfg.startup_addr), + cfg.wakeupgen_base + OMAP_AUX_CORE_BOOT_1); +} + +const struct smp_operations omap4_smp_ops __initconst = { + .smp_init_cpus = omap4_smp_init_cpus, + .smp_prepare_cpus = omap4_smp_prepare_cpus, + .smp_secondary_init = omap4_secondary_init, + .smp_boot_secondary = omap4_boot_secondary, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_die = omap4_cpu_die, + .cpu_kill = omap4_cpu_kill, +#endif +}; diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c new file mode 100644 index 000000000..a66b1dc61 --- /dev/null +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -0,0 +1,634 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP WakeupGen Source file + * + * OMAP WakeupGen is the interrupt controller extension used along + * with ARM GIC to wake the CPU out from low power states on + * external interrupts. It is responsible for generating wakeup + * event from the incoming interrupts and enable bits. It is + * implemented in MPU always ON power domain. During normal operation, + * WakeupGen delivers external interrupts directly to the GIC. + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/irqchip.h> +#include <linux/irqdomain.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> +#include <linux/cpu.h> +#include <linux/notifier.h> +#include <linux/cpu_pm.h> + +#include "omap-wakeupgen.h" +#include "omap-secure.h" + +#include "soc.h" +#include "omap4-sar-layout.h" +#include "common.h" +#include "pm.h" + +#define AM43XX_NR_REG_BANKS 7 +#define AM43XX_IRQS 224 +#define MAX_NR_REG_BANKS AM43XX_NR_REG_BANKS +#define MAX_IRQS AM43XX_IRQS +#define DEFAULT_NR_REG_BANKS 5 +#define DEFAULT_IRQS 160 +#define WKG_MASK_ALL 0x00000000 +#define WKG_UNMASK_ALL 0xffffffff +#define CPU_ENA_OFFSET 0x400 +#define CPU0_ID 0x0 +#define CPU1_ID 0x1 +#define OMAP4_NR_BANKS 4 +#define OMAP4_NR_IRQS 128 + +#define SYS_NIRQ1_EXT_SYS_IRQ_1 7 +#define SYS_NIRQ2_EXT_SYS_IRQ_2 119 + +static void __iomem *wakeupgen_base; +static void __iomem *sar_base; +static DEFINE_RAW_SPINLOCK(wakeupgen_lock); +static unsigned int irq_target_cpu[MAX_IRQS]; +static unsigned int irq_banks = DEFAULT_NR_REG_BANKS; +static unsigned int max_irqs = DEFAULT_IRQS; +static unsigned int omap_secure_apis; + +#ifdef CONFIG_CPU_PM +static unsigned int wakeupgen_context[MAX_NR_REG_BANKS]; +#endif + +struct omap_wakeupgen_ops { + void (*save_context)(void); + void (*restore_context)(void); +}; + +static struct omap_wakeupgen_ops *wakeupgen_ops; + +/* + * Static helper functions. + */ +static inline u32 wakeupgen_readl(u8 idx, u32 cpu) +{ + return readl_relaxed(wakeupgen_base + OMAP_WKG_ENB_A_0 + + (cpu * CPU_ENA_OFFSET) + (idx * 4)); +} + +static inline void wakeupgen_writel(u32 val, u8 idx, u32 cpu) +{ + writel_relaxed(val, wakeupgen_base + OMAP_WKG_ENB_A_0 + + (cpu * CPU_ENA_OFFSET) + (idx * 4)); +} + +static inline void sar_writel(u32 val, u32 offset, u8 idx) +{ + writel_relaxed(val, sar_base + offset + (idx * 4)); +} + +static inline int _wakeupgen_get_irq_info(u32 irq, u32 *bit_posn, u8 *reg_index) +{ + /* + * Each WakeupGen register controls 32 interrupt. + * i.e. 1 bit per SPI IRQ + */ + *reg_index = irq >> 5; + *bit_posn = irq %= 32; + + return 0; +} + +static void _wakeupgen_clear(unsigned int irq, unsigned int cpu) +{ + u32 val, bit_number; + u8 i; + + if (_wakeupgen_get_irq_info(irq, &bit_number, &i)) + return; + + val = wakeupgen_readl(i, cpu); + val &= ~BIT(bit_number); + wakeupgen_writel(val, i, cpu); +} + +static void _wakeupgen_set(unsigned int irq, unsigned int cpu) +{ + u32 val, bit_number; + u8 i; + + if (_wakeupgen_get_irq_info(irq, &bit_number, &i)) + return; + + val = wakeupgen_readl(i, cpu); + val |= BIT(bit_number); + wakeupgen_writel(val, i, cpu); +} + +/* + * Architecture specific Mask extension + */ +static void wakeupgen_mask(struct irq_data *d) +{ + unsigned long flags; + + raw_spin_lock_irqsave(&wakeupgen_lock, flags); + _wakeupgen_clear(d->hwirq, irq_target_cpu[d->hwirq]); + raw_spin_unlock_irqrestore(&wakeupgen_lock, flags); + irq_chip_mask_parent(d); +} + +/* + * Architecture specific Unmask extension + */ +static void wakeupgen_unmask(struct irq_data *d) +{ + unsigned long flags; + + raw_spin_lock_irqsave(&wakeupgen_lock, flags); + _wakeupgen_set(d->hwirq, irq_target_cpu[d->hwirq]); + raw_spin_unlock_irqrestore(&wakeupgen_lock, flags); + irq_chip_unmask_parent(d); +} + +/* + * The sys_nirq pins bypass peripheral modules and are wired directly + * to MPUSS wakeupgen. They get automatically inverted for GIC. + */ +static int wakeupgen_irq_set_type(struct irq_data *d, unsigned int type) +{ + bool inverted = false; + + switch (type) { + case IRQ_TYPE_LEVEL_LOW: + type &= ~IRQ_TYPE_LEVEL_MASK; + type |= IRQ_TYPE_LEVEL_HIGH; + inverted = true; + break; + case IRQ_TYPE_EDGE_FALLING: + type &= ~IRQ_TYPE_EDGE_BOTH; + type |= IRQ_TYPE_EDGE_RISING; + inverted = true; + break; + default: + break; + } + + if (inverted && d->hwirq != SYS_NIRQ1_EXT_SYS_IRQ_1 && + d->hwirq != SYS_NIRQ2_EXT_SYS_IRQ_2) + pr_warn("wakeupgen: irq%li polarity inverted in dts\n", + d->hwirq); + + return irq_chip_set_type_parent(d, type); +} + +#ifdef CONFIG_HOTPLUG_CPU +static DEFINE_PER_CPU(u32 [MAX_NR_REG_BANKS], irqmasks); + +static void _wakeupgen_save_masks(unsigned int cpu) +{ + u8 i; + + for (i = 0; i < irq_banks; i++) + per_cpu(irqmasks, cpu)[i] = wakeupgen_readl(i, cpu); +} + +static void _wakeupgen_restore_masks(unsigned int cpu) +{ + u8 i; + + for (i = 0; i < irq_banks; i++) + wakeupgen_writel(per_cpu(irqmasks, cpu)[i], i, cpu); +} + +static void _wakeupgen_set_all(unsigned int cpu, unsigned int reg) +{ + u8 i; + + for (i = 0; i < irq_banks; i++) + wakeupgen_writel(reg, i, cpu); +} + +/* + * Mask or unmask all interrupts on given CPU. + * 0 = Mask all interrupts on the 'cpu' + * 1 = Unmask all interrupts on the 'cpu' + * Ensure that the initial mask is maintained. This is faster than + * iterating through GIC registers to arrive at the correct masks. + */ +static void wakeupgen_irqmask_all(unsigned int cpu, unsigned int set) +{ + unsigned long flags; + + raw_spin_lock_irqsave(&wakeupgen_lock, flags); + if (set) { + _wakeupgen_save_masks(cpu); + _wakeupgen_set_all(cpu, WKG_MASK_ALL); + } else { + _wakeupgen_set_all(cpu, WKG_UNMASK_ALL); + _wakeupgen_restore_masks(cpu); + } + raw_spin_unlock_irqrestore(&wakeupgen_lock, flags); +} +#endif + +#ifdef CONFIG_CPU_PM +static inline void omap4_irq_save_context(void) +{ + u32 i, val; + + if (omap_rev() == OMAP4430_REV_ES1_0) + return; + + for (i = 0; i < irq_banks; i++) { + /* Save the CPUx interrupt mask for IRQ 0 to 127 */ + val = wakeupgen_readl(i, 0); + sar_writel(val, WAKEUPGENENB_OFFSET_CPU0, i); + val = wakeupgen_readl(i, 1); + sar_writel(val, WAKEUPGENENB_OFFSET_CPU1, i); + + /* + * Disable the secure interrupts for CPUx. The restore + * code blindly restores secure and non-secure interrupt + * masks from SAR RAM. Secure interrupts are not suppose + * to be enabled from HLOS. So overwrite the SAR location + * so that the secure interrupt remains disabled. + */ + sar_writel(0x0, WAKEUPGENENB_SECURE_OFFSET_CPU0, i); + sar_writel(0x0, WAKEUPGENENB_SECURE_OFFSET_CPU1, i); + } + + /* Save AuxBoot* registers */ + val = readl_relaxed(wakeupgen_base + OMAP_AUX_CORE_BOOT_0); + writel_relaxed(val, sar_base + AUXCOREBOOT0_OFFSET); + val = readl_relaxed(wakeupgen_base + OMAP_AUX_CORE_BOOT_1); + writel_relaxed(val, sar_base + AUXCOREBOOT1_OFFSET); + + /* Save SyncReq generation logic */ + val = readl_relaxed(wakeupgen_base + OMAP_PTMSYNCREQ_MASK); + writel_relaxed(val, sar_base + PTMSYNCREQ_MASK_OFFSET); + val = readl_relaxed(wakeupgen_base + OMAP_PTMSYNCREQ_EN); + writel_relaxed(val, sar_base + PTMSYNCREQ_EN_OFFSET); + + /* Set the Backup Bit Mask status */ + val = readl_relaxed(sar_base + SAR_BACKUP_STATUS_OFFSET); + val |= SAR_BACKUP_STATUS_WAKEUPGEN; + writel_relaxed(val, sar_base + SAR_BACKUP_STATUS_OFFSET); + +} + +static inline void omap5_irq_save_context(void) +{ + u32 i, val; + + for (i = 0; i < irq_banks; i++) { + /* Save the CPUx interrupt mask for IRQ 0 to 159 */ + val = wakeupgen_readl(i, 0); + sar_writel(val, OMAP5_WAKEUPGENENB_OFFSET_CPU0, i); + val = wakeupgen_readl(i, 1); + sar_writel(val, OMAP5_WAKEUPGENENB_OFFSET_CPU1, i); + sar_writel(0x0, OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU0, i); + sar_writel(0x0, OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU1, i); + } + + /* Save AuxBoot* registers */ + val = readl_relaxed(wakeupgen_base + OMAP_AUX_CORE_BOOT_0); + writel_relaxed(val, sar_base + OMAP5_AUXCOREBOOT0_OFFSET); + val = readl_relaxed(wakeupgen_base + OMAP_AUX_CORE_BOOT_0); + writel_relaxed(val, sar_base + OMAP5_AUXCOREBOOT1_OFFSET); + + /* Set the Backup Bit Mask status */ + val = readl_relaxed(sar_base + OMAP5_SAR_BACKUP_STATUS_OFFSET); + val |= SAR_BACKUP_STATUS_WAKEUPGEN; + writel_relaxed(val, sar_base + OMAP5_SAR_BACKUP_STATUS_OFFSET); + +} + +static inline void am43xx_irq_save_context(void) +{ + u32 i; + + for (i = 0; i < irq_banks; i++) { + wakeupgen_context[i] = wakeupgen_readl(i, 0); + wakeupgen_writel(0, i, CPU0_ID); + } +} + +/* + * Save WakeupGen interrupt context in SAR BANK3. Restore is done by + * ROM code. WakeupGen IP is integrated along with GIC to manage the + * interrupt wakeups from CPU low power states. It manages + * masking/unmasking of Shared peripheral interrupts(SPI). So the + * interrupt enable/disable control should be in sync and consistent + * at WakeupGen and GIC so that interrupts are not lost. + */ +static void irq_save_context(void) +{ + /* DRA7 has no SAR to save */ + if (soc_is_dra7xx()) + return; + + if (wakeupgen_ops && wakeupgen_ops->save_context) + wakeupgen_ops->save_context(); +} + +/* + * Clear WakeupGen SAR backup status. + */ +static void irq_sar_clear(void) +{ + u32 val; + u32 offset = SAR_BACKUP_STATUS_OFFSET; + /* DRA7 has no SAR to save */ + if (soc_is_dra7xx()) + return; + + if (soc_is_omap54xx()) + offset = OMAP5_SAR_BACKUP_STATUS_OFFSET; + + val = readl_relaxed(sar_base + offset); + val &= ~SAR_BACKUP_STATUS_WAKEUPGEN; + writel_relaxed(val, sar_base + offset); +} + +static void am43xx_irq_restore_context(void) +{ + u32 i; + + for (i = 0; i < irq_banks; i++) + wakeupgen_writel(wakeupgen_context[i], i, CPU0_ID); +} + +static void irq_restore_context(void) +{ + if (wakeupgen_ops && wakeupgen_ops->restore_context) + wakeupgen_ops->restore_context(); +} + +/* + * Save GIC and Wakeupgen interrupt context using secure API + * for HS/EMU devices. + */ +static void irq_save_secure_context(void) +{ + u32 ret; + + ret = omap_secure_dispatcher(OMAP4_HAL_SAVEGIC_INDEX, + FLAG_START_CRITICAL, + 0, 0, 0, 0, 0); + if (ret != API_HAL_RET_VALUE_OK) + pr_err("GIC and Wakeupgen context save failed\n"); +} + +/* Define ops for context save and restore for each SoC */ +static struct omap_wakeupgen_ops omap4_wakeupgen_ops = { + .save_context = omap4_irq_save_context, + .restore_context = irq_sar_clear, +}; + +static struct omap_wakeupgen_ops omap5_wakeupgen_ops = { + .save_context = omap5_irq_save_context, + .restore_context = irq_sar_clear, +}; + +static struct omap_wakeupgen_ops am43xx_wakeupgen_ops = { + .save_context = am43xx_irq_save_context, + .restore_context = am43xx_irq_restore_context, +}; +#else +static struct omap_wakeupgen_ops omap4_wakeupgen_ops = {}; +static struct omap_wakeupgen_ops omap5_wakeupgen_ops = {}; +static struct omap_wakeupgen_ops am43xx_wakeupgen_ops = {}; +#endif + +#ifdef CONFIG_HOTPLUG_CPU +static int omap_wakeupgen_cpu_online(unsigned int cpu) +{ + wakeupgen_irqmask_all(cpu, 0); + return 0; +} + +static int omap_wakeupgen_cpu_dead(unsigned int cpu) +{ + wakeupgen_irqmask_all(cpu, 1); + return 0; +} + +static void __init irq_hotplug_init(void) +{ + cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "arm/omap-wake:online", + omap_wakeupgen_cpu_online, NULL); + cpuhp_setup_state_nocalls(CPUHP_ARM_OMAP_WAKE_DEAD, + "arm/omap-wake:dead", NULL, + omap_wakeupgen_cpu_dead); +} +#else +static void __init irq_hotplug_init(void) +{} +#endif + +#ifdef CONFIG_CPU_PM +static int irq_notifier(struct notifier_block *self, unsigned long cmd, void *v) +{ + switch (cmd) { + case CPU_CLUSTER_PM_ENTER: + if (omap_type() == OMAP2_DEVICE_TYPE_GP || soc_is_am43xx()) + irq_save_context(); + else + irq_save_secure_context(); + break; + case CPU_CLUSTER_PM_EXIT: + if (omap_type() == OMAP2_DEVICE_TYPE_GP || soc_is_am43xx()) + irq_restore_context(); + break; + } + return NOTIFY_OK; +} + +static struct notifier_block irq_notifier_block = { + .notifier_call = irq_notifier, +}; + +static void __init irq_pm_init(void) +{ + /* FIXME: Remove this when MPU OSWR support is added */ + if (!IS_PM44XX_ERRATUM(PM_OMAP4_CPU_OSWR_DISABLE)) + cpu_pm_register_notifier(&irq_notifier_block); +} +#else +static void __init irq_pm_init(void) +{} +#endif + +void __iomem *omap_get_wakeupgen_base(void) +{ + return wakeupgen_base; +} + +int omap_secure_apis_support(void) +{ + return omap_secure_apis; +} + +static struct irq_chip wakeupgen_chip = { + .name = "WUGEN", + .irq_eoi = irq_chip_eoi_parent, + .irq_mask = wakeupgen_mask, + .irq_unmask = wakeupgen_unmask, + .irq_retrigger = irq_chip_retrigger_hierarchy, + .irq_set_type = wakeupgen_irq_set_type, + .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND, +#ifdef CONFIG_SMP + .irq_set_affinity = irq_chip_set_affinity_parent, +#endif +}; + +static int wakeupgen_domain_translate(struct irq_domain *d, + struct irq_fwspec *fwspec, + unsigned long *hwirq, + unsigned int *type) +{ + if (is_of_node(fwspec->fwnode)) { + if (fwspec->param_count != 3) + return -EINVAL; + + /* No PPI should point to this domain */ + if (fwspec->param[0] != 0) + return -EINVAL; + + *hwirq = fwspec->param[1]; + *type = fwspec->param[2]; + return 0; + } + + return -EINVAL; +} + +static int wakeupgen_domain_alloc(struct irq_domain *domain, + unsigned int virq, + unsigned int nr_irqs, void *data) +{ + struct irq_fwspec *fwspec = data; + struct irq_fwspec parent_fwspec; + irq_hw_number_t hwirq; + int i; + + if (fwspec->param_count != 3) + return -EINVAL; /* Not GIC compliant */ + if (fwspec->param[0] != 0) + return -EINVAL; /* No PPI should point to this domain */ + + hwirq = fwspec->param[1]; + if (hwirq >= MAX_IRQS) + return -EINVAL; /* Can't deal with this */ + + for (i = 0; i < nr_irqs; i++) + irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i, + &wakeupgen_chip, NULL); + + parent_fwspec = *fwspec; + parent_fwspec.fwnode = domain->parent->fwnode; + return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, + &parent_fwspec); +} + +static const struct irq_domain_ops wakeupgen_domain_ops = { + .translate = wakeupgen_domain_translate, + .alloc = wakeupgen_domain_alloc, + .free = irq_domain_free_irqs_common, +}; + +/* + * Initialise the wakeupgen module. + */ +static int __init wakeupgen_init(struct device_node *node, + struct device_node *parent) +{ + struct irq_domain *parent_domain, *domain; + int i; + unsigned int boot_cpu = smp_processor_id(); + u32 val; + + if (!parent) { + pr_err("%pOF: no parent, giving up\n", node); + return -ENODEV; + } + + parent_domain = irq_find_host(parent); + if (!parent_domain) { + pr_err("%pOF: unable to obtain parent domain\n", node); + return -ENXIO; + } + /* Not supported on OMAP4 ES1.0 silicon */ + if (omap_rev() == OMAP4430_REV_ES1_0) { + WARN(1, "WakeupGen: Not supported on OMAP4430 ES1.0\n"); + return -EPERM; + } + + /* Static mapping, never released */ + wakeupgen_base = of_iomap(node, 0); + if (WARN_ON(!wakeupgen_base)) + return -ENOMEM; + + if (cpu_is_omap44xx()) { + irq_banks = OMAP4_NR_BANKS; + max_irqs = OMAP4_NR_IRQS; + omap_secure_apis = 1; + wakeupgen_ops = &omap4_wakeupgen_ops; + } else if (soc_is_omap54xx()) { + wakeupgen_ops = &omap5_wakeupgen_ops; + } else if (soc_is_am43xx()) { + irq_banks = AM43XX_NR_REG_BANKS; + max_irqs = AM43XX_IRQS; + wakeupgen_ops = &am43xx_wakeupgen_ops; + } + + domain = irq_domain_create_hierarchy(parent_domain, 0, max_irqs, of_fwnode_handle(node), + &wakeupgen_domain_ops, NULL); + if (!domain) { + iounmap(wakeupgen_base); + return -ENOMEM; + } + + /* Clear all IRQ bitmasks at wakeupGen level */ + for (i = 0; i < irq_banks; i++) { + wakeupgen_writel(0, i, CPU0_ID); + if (!soc_is_am43xx()) + wakeupgen_writel(0, i, CPU1_ID); + } + + /* + * FIXME: Add support to set_smp_affinity() once the core + * GIC code has necessary hooks in place. + */ + + /* Associate all the IRQs to boot CPU like GIC init does. */ + for (i = 0; i < max_irqs; i++) + irq_target_cpu[i] = boot_cpu; + + /* + * Enables OMAP5 ES2 PM Mode using ES2_PM_MODE in AMBA_IF_MODE + * 0x0: ES1 behavior, CPU cores would enter and exit OFF mode together. + * 0x1: ES2 behavior, CPU cores are allowed to enter/exit OFF mode + * independently. + * This needs to be set one time thanks to always ON domain. + * + * We do not support ES1 behavior anymore. OMAP5 is assumed to be + * ES2.0, and the same is applicable for DRA7. + */ + if (soc_is_omap54xx() || soc_is_dra7xx()) { + val = __raw_readl(wakeupgen_base + OMAP_AMBA_IF_MODE); + val |= BIT(5); + omap_smc1(OMAP5_MON_AMBA_IF_INDEX, val); + } + + irq_hotplug_init(); + irq_pm_init(); + + sar_base = omap4_get_sar_ram_base(); + + return 0; +} +IRQCHIP_DECLARE(ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init); diff --git a/arch/arm/mach-omap2/omap-wakeupgen.h b/arch/arm/mach-omap2/omap-wakeupgen.h new file mode 100644 index 000000000..bcc37b2c8 --- /dev/null +++ b/arch/arm/mach-omap2/omap-wakeupgen.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP WakeupGen header file + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + */ +#ifndef OMAP_ARCH_WAKEUPGEN_H +#define OMAP_ARCH_WAKEUPGEN_H + +/* OMAP4 and OMAP5 has same base address */ +#define OMAP_WKUPGEN_BASE 0x48281000 + +#define OMAP_WKG_CONTROL_0 0x00 +#define OMAP_WKG_ENB_A_0 0x10 +#define OMAP_WKG_ENB_B_0 0x14 +#define OMAP_WKG_ENB_C_0 0x18 +#define OMAP_WKG_ENB_D_0 0x1c +#define OMAP_WKG_ENB_E_0 0x20 +#define OMAP_WKG_ENB_A_1 0x410 +#define OMAP_WKG_ENB_B_1 0x414 +#define OMAP_WKG_ENB_C_1 0x418 +#define OMAP_WKG_ENB_D_1 0x41c +#define OMAP_WKG_ENB_E_1 0x420 +#define OMAP_AUX_CORE_BOOT_0 0x800 +#define OMAP_AUX_CORE_BOOT_1 0x804 +#define OMAP_AMBA_IF_MODE 0x80c +#define OMAP_PTMSYNCREQ_MASK 0xc00 +#define OMAP_PTMSYNCREQ_EN 0xc04 +#define OMAP_TIMESTAMPCYCLELO 0xc08 +#define OMAP_TIMESTAMPCYCLEHI 0xc0c + +extern void __iomem *omap_get_wakeupgen_base(void); +extern int omap_secure_apis_support(void); +#endif diff --git a/arch/arm/mach-omap2/omap2-restart.c b/arch/arm/mach-omap2/omap2-restart.c new file mode 100644 index 000000000..fdcc75c97 --- /dev/null +++ b/arch/arm/mach-omap2/omap2-restart.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap2-restart.c - code common to all OMAP2xxx machines. + * + * Copyright (C) 2012 Texas Instruments + * Paul Walmsley + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include "soc.h" +#include "common.h" +#include "prm.h" + +/* + * reset_virt_prcm_set_ck, reset_sys_ck: pointers to the virt_prcm_set + * clock and the sys_ck. Used during the reset process + */ +static struct clk *reset_virt_prcm_set_ck, *reset_sys_ck; + +/* Reboot handling */ + +/** + * omap2xxx_restart - Set DPLL to bypass mode for reboot to work + * + * Set the DPLL to bypass so that reboot completes successfully. No + * return value. + */ +void omap2xxx_restart(enum reboot_mode mode, const char *cmd) +{ + u32 rate; + + rate = clk_get_rate(reset_sys_ck); + clk_set_rate(reset_virt_prcm_set_ck, rate); + + /* XXX Should save the cmd argument for use after the reboot */ + + omap_prm_reset_system(); +} + +/** + * omap2xxx_common_look_up_clks_for_reset - look up clocks needed for restart + * + * Some clocks need to be looked up in advance for the SoC restart + * operation to work - see omap2xxx_restart(). Returns -EINVAL upon + * error or 0 upon success. + */ +static int __init omap2xxx_common_look_up_clks_for_reset(void) +{ + reset_virt_prcm_set_ck = clk_get(NULL, "virt_prcm_set"); + if (IS_ERR(reset_virt_prcm_set_ck)) + return -EINVAL; + + reset_sys_ck = clk_get(NULL, "sys_ck"); + if (IS_ERR(reset_sys_ck)) + return -EINVAL; + + return 0; +} +omap_postcore_initcall(omap2xxx_common_look_up_clks_for_reset); diff --git a/arch/arm/mach-omap2/omap24xx.h b/arch/arm/mach-omap2/omap24xx.h new file mode 100644 index 000000000..d9ecc0578 --- /dev/null +++ b/arch/arm/mach-omap2/omap24xx.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * This file contains the processor specific definitions + * of the TI OMAP24XX. + * + * Copyright (C) 2007 Texas Instruments. + * Copyright (C) 2007 Nokia Corporation. + */ + +#ifndef __ASM_ARCH_OMAP2_H +#define __ASM_ARCH_OMAP2_H + +/* + * Please place only base defines here and put the rest in device + * specific headers. Note also that some of these defines are needed + * for omap1 to compile without adding ifdefs. + */ + +#define L4_24XX_BASE 0x48000000 +#define L4_WK_243X_BASE 0x49000000 +#define L3_24XX_BASE 0x68000000 + +/* interrupt controller */ +#define OMAP24XX_IC_BASE (L4_24XX_BASE + 0xfe000) +#define OMAP24XX_IVA_INTC_BASE 0x40000000 + +#define OMAP242X_CTRL_BASE L4_24XX_BASE +#define OMAP2420_32KSYNCT_BASE (L4_24XX_BASE + 0x4000) +#define OMAP2420_PRCM_BASE (L4_24XX_BASE + 0x8000) +#define OMAP2420_CM_BASE (L4_24XX_BASE + 0x8000) +#define OMAP2420_PRM_BASE OMAP2420_CM_BASE +#define OMAP2420_SDRC_BASE (L3_24XX_BASE + 0x9000) +#define OMAP2420_SMS_BASE 0x68008000 +#define OMAP2420_GPMC_BASE 0x6800a000 + +#define OMAP2430_32KSYNCT_BASE (L4_WK_243X_BASE + 0x20000) +#define OMAP2430_PRCM_BASE (L4_WK_243X_BASE + 0x6000) +#define OMAP2430_CM_BASE (L4_WK_243X_BASE + 0x6000) +#define OMAP2430_PRM_BASE OMAP2430_CM_BASE + +#define OMAP243X_SMS_BASE 0x6C000000 +#define OMAP243X_SDRC_BASE 0x6D000000 +#define OMAP243X_GPMC_BASE 0x6E000000 +#define OMAP243X_SCM_BASE (L4_WK_243X_BASE + 0x2000) +#define OMAP243X_CTRL_BASE OMAP243X_SCM_BASE +#define OMAP243X_HS_BASE (L4_24XX_BASE + 0x000ac000) + +/* DSP SS */ +#define OMAP2420_DSP_BASE 0x58000000 +#define OMAP2420_DSP_MEM_BASE (OMAP2420_DSP_BASE + 0x0) +#define OMAP2420_DSP_IPI_BASE (OMAP2420_DSP_BASE + 0x1000000) +#define OMAP2420_DSP_MMU_BASE (OMAP2420_DSP_BASE + 0x2000000) + +#define OMAP243X_DSP_BASE 0x5C000000 +#define OMAP243X_DSP_MEM_BASE (OMAP243X_DSP_BASE + 0x0) +#define OMAP243X_DSP_MMU_BASE (OMAP243X_DSP_BASE + 0x1000000) + +/* Mailbox */ +#define OMAP24XX_MAILBOX_BASE (L4_24XX_BASE + 0x94000) + +/* Camera */ +#define OMAP24XX_CAMERA_BASE (L4_24XX_BASE + 0x52000) + +/* Security */ +#define OMAP24XX_SEC_BASE (L4_24XX_BASE + 0xA0000) +#define OMAP24XX_SEC_RNG_BASE (OMAP24XX_SEC_BASE + 0x0000) +#define OMAP24XX_SEC_DES_BASE (OMAP24XX_SEC_BASE + 0x2000) +#define OMAP24XX_SEC_SHA1MD5_BASE (OMAP24XX_SEC_BASE + 0x4000) +#define OMAP24XX_SEC_AES_BASE (OMAP24XX_SEC_BASE + 0x6000) +#define OMAP24XX_SEC_PKA_BASE (OMAP24XX_SEC_BASE + 0x8000) + +#endif /* __ASM_ARCH_OMAP2_H */ + diff --git a/arch/arm/mach-omap2/omap3-restart.c b/arch/arm/mach-omap2/omap3-restart.c new file mode 100644 index 000000000..bcabe6fa1 --- /dev/null +++ b/arch/arm/mach-omap2/omap3-restart.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap3-restart.c - Code common to all OMAP3xxx machines. + * + * Copyright (C) 2009, 2012 Texas Instruments + * Copyright (C) 2010 Nokia Corporation + * Tony Lindgren <tony@atomide.com> + * Santosh Shilimkar <santosh.shilimkar@ti.com> + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/reboot.h> + +#include "common.h" +#include "control.h" +#include "prm.h" + +/* Global address base setup code */ + +/** + * omap3xxx_restart - trigger a software restart of the SoC + * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c + * @cmd: passed from the userspace program rebooting the system (if provided) + * + * Resets the SoC. For @cmd, see the 'reboot' syscall in + * kernel/sys.c. No return value. + */ +void omap3xxx_restart(enum reboot_mode mode, const char *cmd) +{ + omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0)); + omap_prm_reset_system(); +} diff --git a/arch/arm/mach-omap2/omap34xx.h b/arch/arm/mach-omap2/omap34xx.h new file mode 100644 index 000000000..ce8cd3317 --- /dev/null +++ b/arch/arm/mach-omap2/omap34xx.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * This file contains the processor specific definitions of the TI OMAP34XX. + * + * Copyright (C) 2007 Texas Instruments. + * Copyright (C) 2007 Nokia Corporation. + */ + +#ifndef __ASM_ARCH_OMAP3_H +#define __ASM_ARCH_OMAP3_H + +/* + * Please place only base defines here and put the rest in device + * specific headers. + */ + +#define L4_34XX_BASE 0x48000000 +#define L4_WK_34XX_BASE 0x48300000 +#define L4_PER_34XX_BASE 0x49000000 +#define L4_EMU_34XX_BASE 0x54000000 +#define L3_34XX_BASE 0x68000000 + +#define L4_WK_AM33XX_BASE 0x44C00000 + +#define OMAP3430_32KSYNCT_BASE 0x48320000 +#define OMAP3430_CM_BASE 0x48004800 +#define OMAP3430_PRM_BASE 0x48306800 +#define OMAP343X_SMS_BASE 0x6C000000 +#define OMAP343X_SDRC_BASE 0x6D000000 +#define OMAP34XX_GPMC_BASE 0x6E000000 +#define OMAP343X_SCM_BASE 0x48002000 +#define OMAP343X_CTRL_BASE OMAP343X_SCM_BASE + +#define OMAP34XX_IC_BASE 0x48200000 + +#define OMAP3430_ISP_BASE (L4_34XX_BASE + 0xBC000) +#define OMAP3430_ISP_MMU_BASE (OMAP3430_ISP_BASE + 0x1400) +#define OMAP3430_ISP_BASE2 (OMAP3430_ISP_BASE + 0x1800) + +#define OMAP34XX_HSUSB_OTG_BASE (L4_34XX_BASE + 0xAB000) +#define OMAP34XX_USBTLL_BASE (L4_34XX_BASE + 0x62000) +#define OMAP34XX_UHH_CONFIG_BASE (L4_34XX_BASE + 0x64000) +#define OMAP34XX_OHCI_BASE (L4_34XX_BASE + 0x64400) +#define OMAP34XX_EHCI_BASE (L4_34XX_BASE + 0x64800) +#define OMAP34XX_SR1_BASE 0x480C9000 +#define OMAP34XX_SR2_BASE 0x480CB000 + +#define OMAP34XX_MAILBOX_BASE (L4_34XX_BASE + 0x94000) + +/* Security */ +#define OMAP34XX_SEC_BASE (L4_34XX_BASE + 0xA0000) +#define OMAP34XX_SEC_SHA1MD5_BASE (OMAP34XX_SEC_BASE + 0x23000) +#define OMAP34XX_SEC_AES_BASE (OMAP34XX_SEC_BASE + 0x25000) + +#endif /* __ASM_ARCH_OMAP3_H */ + diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c new file mode 100644 index 000000000..5d924b85b --- /dev/null +++ b/arch/arm/mach-omap2/omap4-common.c @@ -0,0 +1,327 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 specific common source file. + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/irqchip.h> +#include <linux/memblock.h> +#include <linux/of.h> +#include <linux/of_irq.h> +#include <linux/export.h> +#include <linux/irqchip/arm-gic.h> +#include <linux/of_address.h> +#include <linux/reboot.h> +#include <linux/genalloc.h> + +#include <asm/hardware/cache-l2x0.h> +#include <asm/mach/map.h> +#include <asm/memblock.h> +#include <asm/smp_twd.h> + +#include "omap-wakeupgen.h" +#include "soc.h" +#include "iomap.h" +#include "common.h" +#include "prminst44xx.h" +#include "prcm_mpu44xx.h" +#include "omap4-sar-layout.h" +#include "omap-secure.h" +#include "sram.h" + +#ifdef CONFIG_CACHE_L2X0 +static void __iomem *l2cache_base; +#endif + +static void __iomem *sar_ram_base; +static void __iomem *gic_dist_base_addr; +static void __iomem *twd_base; + +#define IRQ_LOCALTIMER 29 + +#ifdef CONFIG_OMAP_INTERCONNECT_BARRIER + +/* Used to implement memory barrier on DRAM path */ +#define OMAP4_DRAM_BARRIER_VA 0xfe600000 + +static void __iomem *dram_sync, *sram_sync; +static phys_addr_t dram_sync_paddr; +static u32 dram_sync_size; + +/* + * The OMAP4 bus structure contains asynchronous bridges which can buffer + * data writes from the MPU. These asynchronous bridges can be found on + * paths between the MPU to EMIF, and the MPU to L3 interconnects. + * + * We need to be careful about re-ordering which can happen as a result + * of different accesses being performed via different paths, and + * therefore different asynchronous bridges. + */ + +/* + * OMAP4 interconnect barrier which is called for each mb() and wmb(). + * This is to ensure that normal paths to DRAM (normal memory, cacheable + * accesses) are properly synchronised with writes to DMA coherent memory + * (normal memory, uncacheable) and device writes. + * + * The mb() and wmb() barriers only operate only on the MPU->MA->EMIF + * path, as we need to ensure that data is visible to other system + * masters prior to writes to those system masters being seen. + * + * Note: the SRAM path is not synchronised via mb() and wmb(). + */ +static void omap4_mb(void) +{ + if (dram_sync) + writel_relaxed(0, dram_sync); +} + +/* + * OMAP4 Errata i688 - asynchronous bridge corruption when entering WFI. + * + * If a data is stalled inside asynchronous bridge because of back + * pressure, it may be accepted multiple times, creating pointer + * misalignment that will corrupt next transfers on that data path until + * next reset of the system. No recovery procedure once the issue is hit, + * the path remains consistently broken. + * + * Async bridges can be found on paths between MPU to EMIF and MPU to L3 + * interconnects. + * + * This situation can happen only when the idle is initiated by a Master + * Request Disconnection (which is trigged by software when executing WFI + * on the CPU). + * + * The work-around for this errata needs all the initiators connected + * through an async bridge to ensure that data path is properly drained + * before issuing WFI. This condition will be met if one Strongly ordered + * access is performed to the target right before executing the WFI. + * + * In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained. + * IO barrier ensure that there is no synchronisation loss on initiators + * operating on both interconnect port simultaneously. + * + * This is a stronger version of the OMAP4 memory barrier below, and + * operates on both the MPU->MA->EMIF path but also the MPU->OCP path + * as well, and is necessary prior to executing a WFI. + */ +void omap_interconnect_sync(void) +{ + if (dram_sync && sram_sync) { + writel_relaxed(readl_relaxed(dram_sync), dram_sync); + writel_relaxed(readl_relaxed(sram_sync), sram_sync); + isb(); + } +} + +static int __init omap4_sram_init(void) +{ + struct device_node *np; + struct gen_pool *sram_pool; + + if (!soc_is_omap44xx() && !soc_is_omap54xx()) + return 0; + + np = of_find_compatible_node(NULL, NULL, "ti,omap4-mpu"); + if (!np) + pr_warn("%s:Unable to allocate sram needed to handle errata I688\n", + __func__); + sram_pool = of_gen_pool_get(np, "sram", 0); + if (!sram_pool) + pr_warn("%s:Unable to get sram pool needed to handle errata I688\n", + __func__); + else + sram_sync = (void __iomem *)gen_pool_alloc(sram_pool, PAGE_SIZE); + of_node_put(np); + + return 0; +} +omap_arch_initcall(omap4_sram_init); + +/* Steal one page physical memory for barrier implementation */ +void __init omap_barrier_reserve_memblock(void) +{ + dram_sync_size = ALIGN(PAGE_SIZE, SZ_1M); + dram_sync_paddr = arm_memblock_steal(dram_sync_size, SZ_1M); +} + +void __init omap_barriers_init(void) +{ + struct map_desc dram_io_desc[1]; + + dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA; + dram_io_desc[0].pfn = __phys_to_pfn(dram_sync_paddr); + dram_io_desc[0].length = dram_sync_size; + dram_io_desc[0].type = MT_MEMORY_RW_SO; + iotable_init(dram_io_desc, ARRAY_SIZE(dram_io_desc)); + dram_sync = (void __iomem *) dram_io_desc[0].virtual; + + pr_info("OMAP4: Map %pa to %p for dram barrier\n", + &dram_sync_paddr, dram_sync); + + soc_mb = omap4_mb; +} + +#endif + +void gic_dist_disable(void) +{ + if (gic_dist_base_addr) + writel_relaxed(0x0, gic_dist_base_addr + GIC_DIST_CTRL); +} + +void gic_dist_enable(void) +{ + if (gic_dist_base_addr) + writel_relaxed(0x1, gic_dist_base_addr + GIC_DIST_CTRL); +} + +bool gic_dist_disabled(void) +{ + return !(readl_relaxed(gic_dist_base_addr + GIC_DIST_CTRL) & 0x1); +} + +void gic_timer_retrigger(void) +{ + u32 twd_int = readl_relaxed(twd_base + TWD_TIMER_INTSTAT); + u32 gic_int = readl_relaxed(gic_dist_base_addr + GIC_DIST_PENDING_SET); + u32 twd_ctrl = readl_relaxed(twd_base + TWD_TIMER_CONTROL); + + if (twd_int && !(gic_int & BIT(IRQ_LOCALTIMER))) { + /* + * The local timer interrupt got lost while the distributor was + * disabled. Ack the pending interrupt, and retrigger it. + */ + pr_warn("%s: lost localtimer interrupt\n", __func__); + writel_relaxed(1, twd_base + TWD_TIMER_INTSTAT); + if (!(twd_ctrl & TWD_TIMER_CONTROL_PERIODIC)) { + writel_relaxed(1, twd_base + TWD_TIMER_COUNTER); + twd_ctrl |= TWD_TIMER_CONTROL_ENABLE; + writel_relaxed(twd_ctrl, twd_base + TWD_TIMER_CONTROL); + } + } +} + +#ifdef CONFIG_CACHE_L2X0 + +void __iomem *omap4_get_l2cache_base(void) +{ + return l2cache_base; +} + +void omap4_l2c310_write_sec(unsigned long val, unsigned reg) +{ + unsigned smc_op; + + switch (reg) { + case L2X0_CTRL: + smc_op = OMAP4_MON_L2X0_CTRL_INDEX; + break; + + case L2X0_AUX_CTRL: + smc_op = OMAP4_MON_L2X0_AUXCTRL_INDEX; + break; + + case L2X0_DEBUG_CTRL: + smc_op = OMAP4_MON_L2X0_DBG_CTRL_INDEX; + break; + + case L310_PREFETCH_CTRL: + smc_op = OMAP4_MON_L2X0_PREFETCH_INDEX; + break; + + case L310_POWER_CTRL: + pr_info_once("OMAP L2C310: ROM does not support power control setting\n"); + return; + + default: + WARN_ONCE(1, "OMAP L2C310: ignoring write to reg 0x%x\n", reg); + return; + } + + omap_smc1(smc_op, val); +} + +int __init omap_l2_cache_init(void) +{ + /* Static mapping, never released */ + l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K); + if (WARN_ON(!l2cache_base)) + return -ENOMEM; + return 0; +} +#endif + +void __iomem *omap4_get_sar_ram_base(void) +{ + return sar_ram_base; +} + +/* + * SAR RAM used to save and restore the HW context in low power modes. + * Note that we need to initialize this very early for kexec. See + * omap4_mpuss_early_init(). + */ +void __init omap4_sar_ram_init(void) +{ + unsigned long sar_base; + + /* + * To avoid code running on other OMAPs in + * multi-omap builds + */ + if (cpu_is_omap44xx()) + sar_base = OMAP44XX_SAR_RAM_BASE; + else if (soc_is_omap54xx()) + sar_base = OMAP54XX_SAR_RAM_BASE; + else + return; + + /* Static mapping, never released */ + sar_ram_base = ioremap(sar_base, SZ_16K); + if (WARN_ON(!sar_ram_base)) + return; +} + +static const struct of_device_id intc_match[] = { + { .compatible = "ti,omap4-wugen-mpu", }, + { .compatible = "ti,omap5-wugen-mpu", }, + { }, +}; + +static struct device_node *intc_node; + +void __init omap_gic_of_init(void) +{ + struct device_node *np; + + intc_node = of_find_matching_node(NULL, intc_match); + if (WARN_ON(!intc_node)) { + pr_err("No WUGEN found in DT, system will misbehave.\n"); + pr_err("UPDATE YOUR DEVICE TREE!\n"); + } + + /* Extract GIC distributor and TWD bases for OMAP4460 ROM Errata WA */ + if (!cpu_is_omap446x()) + goto skip_errata_init; + + np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-gic"); + gic_dist_base_addr = of_iomap(np, 0); + of_node_put(np); + WARN_ON(!gic_dist_base_addr); + + np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-twd-timer"); + twd_base = of_iomap(np, 0); + of_node_put(np); + WARN_ON(!twd_base); + +skip_errata_init: + irqchip_init(); +} diff --git a/arch/arm/mach-omap2/omap4-restart.c b/arch/arm/mach-omap2/omap4-restart.c new file mode 100644 index 000000000..56f621314 --- /dev/null +++ b/arch/arm/mach-omap2/omap4-restart.c @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap4-restart.c - Common to OMAP4 and OMAP5 + */ + +#include <linux/types.h> +#include <linux/reboot.h> +#include "common.h" +#include "prm.h" + +/** + * omap44xx_restart - trigger a software restart of the SoC + * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c + * @cmd: passed from the userspace program rebooting the system (if provided) + * + * Resets the SoC. For @cmd, see the 'reboot' syscall in + * kernel/sys.c. No return value. + */ +void omap44xx_restart(enum reboot_mode mode, const char *cmd) +{ + /* XXX Should save 'cmd' into scratchpad for use after reboot */ + omap_prm_reset_system(); +} diff --git a/arch/arm/mach-omap2/omap4-sar-layout.h b/arch/arm/mach-omap2/omap4-sar-layout.h new file mode 100644 index 000000000..aabf06401 --- /dev/null +++ b/arch/arm/mach-omap2/omap4-sar-layout.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * omap4-sar-layout.h: OMAP4 SAR RAM layout header file + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + */ +#ifndef OMAP_ARCH_OMAP4_SAR_LAYOUT_H +#define OMAP_ARCH_OMAP4_SAR_LAYOUT_H + +/* + * SAR BANK offsets from base address OMAP44XX/54XX_SAR_RAM_BASE + */ +#define SAR_BANK1_OFFSET 0x0000 +#define SAR_BANK2_OFFSET 0x1000 +#define SAR_BANK3_OFFSET 0x2000 +#define SAR_BANK4_OFFSET 0x3000 + +/* Scratch pad memory offsets from SAR_BANK1 */ +#define SCU_OFFSET0 0xfe4 +#define SCU_OFFSET1 0xfe8 +#define OMAP_TYPE_OFFSET 0xfec +#define L2X0_SAVE_OFFSET0 0xff0 +#define L2X0_SAVE_OFFSET1 0xff4 +#define L2X0_AUXCTRL_OFFSET 0xff8 +#define L2X0_PREFETCH_CTRL_OFFSET 0xffc + +/* CPUx Wakeup Non-Secure Physical Address offsets in SAR_BANK1 */ +#define CPU0_WAKEUP_NS_PA_ADDR_OFFSET 0xa04 +#define CPU1_WAKEUP_NS_PA_ADDR_OFFSET 0xa08 +#define OMAP5_CPU0_WAKEUP_NS_PA_ADDR_OFFSET 0xe00 +#define OMAP5_CPU1_WAKEUP_NS_PA_ADDR_OFFSET 0xe04 + +#define SAR_BACKUP_STATUS_OFFSET (SAR_BANK3_OFFSET + 0x500) +#define SAR_SECURE_RAM_SIZE_OFFSET (SAR_BANK3_OFFSET + 0x504) +#define SAR_SECRAM_SAVED_AT_OFFSET (SAR_BANK3_OFFSET + 0x508) + +/* WakeUpGen save restore offset from OMAP44XX_SAR_RAM_BASE */ +#define WAKEUPGENENB_OFFSET_CPU0 (SAR_BANK3_OFFSET + 0x684) +#define WAKEUPGENENB_SECURE_OFFSET_CPU0 (SAR_BANK3_OFFSET + 0x694) +#define WAKEUPGENENB_OFFSET_CPU1 (SAR_BANK3_OFFSET + 0x6a4) +#define WAKEUPGENENB_SECURE_OFFSET_CPU1 (SAR_BANK3_OFFSET + 0x6b4) +#define AUXCOREBOOT0_OFFSET (SAR_BANK3_OFFSET + 0x6c4) +#define AUXCOREBOOT1_OFFSET (SAR_BANK3_OFFSET + 0x6c8) +#define PTMSYNCREQ_MASK_OFFSET (SAR_BANK3_OFFSET + 0x6cc) +#define PTMSYNCREQ_EN_OFFSET (SAR_BANK3_OFFSET + 0x6d0) +#define SAR_BACKUP_STATUS_WAKEUPGEN 0x10 + +/* WakeUpGen save restore offset from OMAP54XX_SAR_RAM_BASE */ +#define OMAP5_WAKEUPGENENB_OFFSET_CPU0 (SAR_BANK3_OFFSET + 0x9dc) +#define OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU0 (SAR_BANK3_OFFSET + 0x9f0) +#define OMAP5_WAKEUPGENENB_OFFSET_CPU1 (SAR_BANK3_OFFSET + 0xa04) +#define OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU1 (SAR_BANK3_OFFSET + 0xa18) +#define OMAP5_AUXCOREBOOT0_OFFSET (SAR_BANK3_OFFSET + 0xa2c) +#define OMAP5_AUXCOREBOOT1_OFFSET (SAR_BANK3_OFFSET + 0x930) +#define OMAP5_AMBA_IF_MODE_OFFSET (SAR_BANK3_OFFSET + 0xa34) +#define OMAP5_SAR_BACKUP_STATUS_OFFSET (SAR_BANK3_OFFSET + 0x800) + +#endif diff --git a/arch/arm/mach-omap2/omap44xx.h b/arch/arm/mach-omap2/omap44xx.h new file mode 100644 index 000000000..0595175a5 --- /dev/null +++ b/arch/arm/mach-omap2/omap44xx.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/*: + * Address mappings and base address for OMAP4 interconnects + * and peripherals. + * + * Copyright (C) 2009 Texas Instruments + * + * Author: Santosh Shilimkar <santosh.shilimkar@ti.com> + */ +#ifndef __ASM_ARCH_OMAP44XX_H +#define __ASM_ARCH_OMAP44XX_H + +/* + * Please place only base defines here and put the rest in device + * specific headers. + */ +#define L4_44XX_BASE 0x4a000000 +#define L4_WK_44XX_BASE 0x4a300000 +#define L4_PER_44XX_BASE 0x48000000 +#define L4_EMU_44XX_BASE 0x54000000 +#define L3_44XX_BASE 0x44000000 +#define OMAP44XX_EMIF1_BASE 0x4c000000 +#define OMAP44XX_EMIF2_BASE 0x4d000000 +#define OMAP44XX_DMM_BASE 0x4e000000 +#define OMAP4430_32KSYNCT_BASE 0x4a304000 +#define OMAP4430_CM1_BASE 0x4a004000 +#define OMAP4430_CM_BASE OMAP4430_CM1_BASE +#define OMAP4430_CM2_BASE 0x4a008000 +#define OMAP4430_PRM_BASE 0x4a306000 +#define OMAP4430_PRCM_MPU_BASE 0x48243000 +#define OMAP44XX_GPMC_BASE 0x50000000 +#define OMAP443X_SCM_BASE 0x4a002000 +#define OMAP443X_CTRL_BASE 0x4a100000 +#define OMAP44XX_IC_BASE 0x48200000 +#define OMAP44XX_IVA_INTC_BASE 0x40000000 +#define IRQ_SIR_IRQ 0x0040 +#define OMAP44XX_GIC_DIST_BASE 0x48241000 +#define OMAP44XX_GIC_CPU_BASE 0x48240100 +#define OMAP44XX_IRQ_GIC_START 32 +#define OMAP44XX_LOCAL_TWD_BASE 0x48240600 +#define OMAP44XX_L2CACHE_BASE 0x48242000 +#define OMAP44XX_WKUPGEN_BASE 0x48281000 +#define OMAP44XX_MCPDM_BASE 0x40132000 +#define OMAP44XX_SAR_RAM_BASE 0x4a326000 + +#define OMAP44XX_MAILBOX_BASE (L4_44XX_BASE + 0xF4000) +#define OMAP44XX_HSUSB_OTG_BASE (L4_44XX_BASE + 0xAB000) + +#define OMAP4_MMU1_BASE 0x55082000 +#define OMAP4_MMU2_BASE 0x4A066000 + +#define OMAP44XX_USBTLL_BASE (L4_44XX_BASE + 0x62000) +#define OMAP44XX_UHH_CONFIG_BASE (L4_44XX_BASE + 0x64000) +#define OMAP44XX_HSUSB_OHCI_BASE (L4_44XX_BASE + 0x64800) +#define OMAP44XX_HSUSB_EHCI_BASE (L4_44XX_BASE + 0x64C00) + +#endif /* __ASM_ARCH_OMAP44XX_H */ + diff --git a/arch/arm/mach-omap2/omap54xx.h b/arch/arm/mach-omap2/omap54xx.h new file mode 100644 index 000000000..b49e633c3 --- /dev/null +++ b/arch/arm/mach-omap2/omap54xx.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/*: + * Address mappings and base address for OMAP5 interconnects + * and peripherals. + * + * Copyright (C) 2012 Texas Instruments + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * Sricharan <r.sricharan@ti.com> + */ +#ifndef __ASM_SOC_OMAP54XX_H +#define __ASM_SOC_OMAP54XX_H + +/* + * Please place only base defines here and put the rest in device + * specific headers. + */ +#define L4_54XX_BASE 0x4a000000 +#define L4_WK_54XX_BASE 0x4ae00000 +#define L4_PER_54XX_BASE 0x48000000 +#define L3_54XX_BASE 0x44000000 +#define OMAP54XX_32KSYNCT_BASE 0x4ae04000 +#define OMAP54XX_CM_CORE_AON_BASE 0x4a004000 +#define OMAP54XX_CM_CORE_BASE 0x4a008000 +#define OMAP54XX_PRM_BASE 0x4ae06000 +#define OMAP54XX_PRCM_MPU_BASE 0x48243000 +#define OMAP54XX_SCM_BASE 0x4a002000 +#define OMAP54XX_CTRL_BASE 0x4a002800 +#define OMAP54XX_SAR_RAM_BASE 0x4ae26000 + +/* DRA7 specific base addresses */ +#define L3_MAIN_SN_DRA7XX_BASE 0x44000000 +#define L4_PER1_DRA7XX_BASE 0x48000000 +#define L4_CFG_MPU_DRA7XX_BASE 0x48210000 +#define L4_PER2_DRA7XX_BASE 0x48400000 +#define L4_PER3_DRA7XX_BASE 0x48800000 +#define L4_CFG_DRA7XX_BASE 0x4A000000 +#define L4_WKUP_DRA7XX_BASE 0x4ae00000 +#define DRA7XX_CM_CORE_AON_BASE 0x4a005000 +#define DRA7XX_CTRL_BASE 0x4a003400 +#define DRA7XX_TAP_BASE 0x4ae0c000 + +#endif /* __ASM_SOC_OMAP555554XX_H */ diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c new file mode 100644 index 000000000..77a75b0b9 --- /dev/null +++ b/arch/arm/mach-omap2/omap_device.c @@ -0,0 +1,622 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_device implementation + * + * Copyright (C) 2009-2010 Nokia Corporation + * Paul Walmsley, Kevin Hilman + * + * Developed in collaboration with (alphabetical order): Benoit + * Cousson, Thara Gopinath, Tony Lindgren, Rajendra Nayak, Vikram + * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard + * Woodruff + * + * This code provides a consistent interface for OMAP device drivers + * to control power management and interconnect properties of their + * devices. + * + * In the medium- to long-term, this code should be implemented as a + * proper omap_bus/omap_device in Linux, no more platform_data func + * pointers + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/pm_domain.h> +#include <linux/pm_runtime.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/notifier.h> + +#include "common.h" +#include "soc.h" +#include "omap_device.h" +#include "omap_hwmod.h" + +static struct omap_device *omap_device_alloc(struct platform_device *pdev, + struct omap_hwmod **ohs, int oh_cnt); +static void omap_device_delete(struct omap_device *od); +static struct dev_pm_domain omap_device_fail_pm_domain; +static struct dev_pm_domain omap_device_pm_domain; + +/* Private functions */ + +static void _add_clkdev(struct omap_device *od, const char *clk_alias, + const char *clk_name) +{ + struct clk *r; + int rc; + + if (!clk_alias || !clk_name) + return; + + dev_dbg(&od->pdev->dev, "Creating %s -> %s\n", clk_alias, clk_name); + + r = clk_get_sys(dev_name(&od->pdev->dev), clk_alias); + if (!IS_ERR(r)) { + dev_dbg(&od->pdev->dev, + "alias %s already exists\n", clk_alias); + clk_put(r); + return; + } + + r = clk_get_sys(NULL, clk_name); + + if (IS_ERR(r)) { + struct of_phandle_args clkspec; + + clkspec.np = of_find_node_by_name(NULL, clk_name); + + r = of_clk_get_from_provider(&clkspec); + + rc = clk_register_clkdev(r, clk_alias, + dev_name(&od->pdev->dev)); + } else { + rc = clk_add_alias(clk_alias, dev_name(&od->pdev->dev), + clk_name, NULL); + } + + if (rc) { + if (rc == -ENODEV || rc == -ENOMEM) + dev_err(&od->pdev->dev, + "clkdev_alloc for %s failed\n", clk_alias); + else + dev_err(&od->pdev->dev, + "clk_get for %s failed\n", clk_name); + } +} + +/** + * _add_hwmod_clocks_clkdev - Add clkdev entry for hwmod optional clocks + * and main clock + * @od: struct omap_device *od + * @oh: struct omap_hwmod *oh + * + * For the main clock and every optional clock present per hwmod per + * omap_device, this function adds an entry in the clkdev table of the + * form <dev-id=dev_name, con-id=role> if it does not exist already. + * + * This allows drivers to get a pointer to its optional clocks based on its role + * by calling clk_get(<dev*>, <role>). + * In the case of the main clock, a "fck" alias is used. + * + * No return value. + */ +static void _add_hwmod_clocks_clkdev(struct omap_device *od, + struct omap_hwmod *oh) +{ + int i; + + _add_clkdev(od, "fck", oh->main_clk); + + for (i = 0; i < oh->opt_clks_cnt; i++) + _add_clkdev(od, oh->opt_clks[i].role, oh->opt_clks[i].clk); +} + + +/** + * omap_device_build_from_dt - build an omap_device with multiple hwmods + * @pdev: The platform device to update. + * + * Function for building an omap_device already registered from device-tree + * + * Returns 0 or PTR_ERR() on error. + */ +static int omap_device_build_from_dt(struct platform_device *pdev) +{ + struct omap_hwmod **hwmods; + struct omap_device *od; + struct omap_hwmod *oh; + struct device_node *node = pdev->dev.of_node; + struct resource res; + const char *oh_name; + int oh_cnt, i, ret = 0; + bool device_active = false, skip_pm_domain = false; + + oh_cnt = of_property_count_strings(node, "ti,hwmods"); + if (oh_cnt <= 0) { + dev_dbg(&pdev->dev, "No 'hwmods' to build omap_device\n"); + return -ENODEV; + } + + /* SDMA still needs special handling for omap_device_build() */ + ret = of_property_read_string_index(node, "ti,hwmods", 0, &oh_name); + if (!ret && (!strncmp("dma_system", oh_name, 10) || + !strncmp("dma", oh_name, 3))) + skip_pm_domain = true; + + /* Use ti-sysc driver instead of omap_device? */ + if (!skip_pm_domain && + !omap_hwmod_parse_module_range(NULL, node, &res)) + return -ENODEV; + + hwmods = kzalloc_objs(struct omap_hwmod *, oh_cnt); + if (!hwmods) { + ret = -ENOMEM; + goto odbfd_exit; + } + + for (i = 0; i < oh_cnt; i++) { + of_property_read_string_index(node, "ti,hwmods", i, &oh_name); + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + dev_err(&pdev->dev, "Cannot lookup hwmod '%s'\n", + oh_name); + ret = -EINVAL; + goto odbfd_exit1; + } + hwmods[i] = oh; + if (oh->flags & HWMOD_INIT_NO_IDLE) + device_active = true; + } + + od = omap_device_alloc(pdev, hwmods, oh_cnt); + if (IS_ERR(od)) { + dev_err(&pdev->dev, "Cannot allocate omap_device for :%s\n", + oh_name); + ret = PTR_ERR(od); + goto odbfd_exit1; + } + + /* Fix up missing resource names */ + for (i = 0; i < pdev->num_resources; i++) { + struct resource *r = &pdev->resource[i]; + + if (r->name == NULL) + r->name = dev_name(&pdev->dev); + } + + if (!skip_pm_domain) { + dev_pm_domain_set(&pdev->dev, &omap_device_pm_domain); + if (device_active) { + omap_device_enable(pdev); + pm_runtime_set_active(&pdev->dev); + } + } + +odbfd_exit1: + kfree(hwmods); +odbfd_exit: + /* if data/we are at fault.. load up a fail handler */ + if (ret) + dev_pm_domain_set(&pdev->dev, &omap_device_fail_pm_domain); + + return ret; +} + +static int _omap_device_notifier_call(struct notifier_block *nb, + unsigned long event, void *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od; + int err; + + switch (event) { + case BUS_NOTIFY_REMOVED_DEVICE: + if (pdev->archdata.od) + omap_device_delete(pdev->archdata.od); + break; + case BUS_NOTIFY_UNBOUND_DRIVER: + od = to_omap_device(pdev); + if (od && (od->_state == OMAP_DEVICE_STATE_ENABLED)) { + dev_info(dev, "enabled after unload, idling\n"); + err = omap_device_idle(pdev); + if (err) + dev_err(dev, "failed to idle\n"); + } + break; + case BUS_NOTIFY_BIND_DRIVER: + od = to_omap_device(pdev); + if (od) { + od->_driver_status = BUS_NOTIFY_BIND_DRIVER; + if (od->_state == OMAP_DEVICE_STATE_ENABLED && + pm_runtime_status_suspended(dev)) { + pm_runtime_set_active(dev); + } + } + break; + case BUS_NOTIFY_ADD_DEVICE: + if (pdev->dev.of_node) + omap_device_build_from_dt(pdev); + fallthrough; + default: + od = to_omap_device(pdev); + if (od) + od->_driver_status = event; + } + + return NOTIFY_DONE; +} + +/** + * _omap_device_enable_hwmods - call omap_hwmod_enable() on all hwmods + * @od: struct omap_device *od + * + * Enable all underlying hwmods. Returns 0. + */ +static int _omap_device_enable_hwmods(struct omap_device *od) +{ + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) + ret |= omap_hwmod_enable(od->hwmods[i]); + + return ret; +} + +/** + * _omap_device_idle_hwmods - call omap_hwmod_idle() on all hwmods + * @od: struct omap_device *od + * + * Idle all underlying hwmods. Returns 0. + */ +static int _omap_device_idle_hwmods(struct omap_device *od) +{ + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) + ret |= omap_hwmod_idle(od->hwmods[i]); + + return ret; +} + +/* Public functions for use by core code */ + +/** + * omap_device_alloc - allocate an omap_device + * @pdev: platform_device that will be included in this omap_device + * @ohs: ptr to the omap_hwmod for this omap_device + * @oh_cnt: the size of the ohs list + * + * Convenience function for allocating an omap_device structure and filling + * hwmods, and resources. + * + * Returns an struct omap_device pointer or ERR_PTR() on error; + */ +static struct omap_device *omap_device_alloc(struct platform_device *pdev, + struct omap_hwmod **ohs, int oh_cnt) +{ + int ret = -ENOMEM; + struct omap_device *od; + int i; + struct omap_hwmod *hwmod; + + od = kzalloc_flex(*od, hwmods, oh_cnt); + if (!od) { + dev_err(&pdev->dev, "omap_device: build failed (%d)\n", ret); + return ERR_PTR(ret); + } + + od->hwmods_cnt = oh_cnt; + memcpy(od->hwmods, ohs, oh_cnt * sizeof(*od->hwmods)); + + od->pdev = pdev; + pdev->archdata.od = od; + + for (i = 0; i < oh_cnt; i++) { + hwmod = od->hwmods[i]; + hwmod->od = od; + _add_hwmod_clocks_clkdev(od, hwmod); + } + + return od; +} + +static void omap_device_delete(struct omap_device *od) +{ + if (!od) + return; + + od->pdev->archdata.od = NULL; + kfree(od); +} + +#ifdef CONFIG_PM +static int _od_runtime_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + int ret; + + ret = pm_generic_runtime_suspend(dev); + if (ret) + return ret; + + return omap_device_idle(pdev); +} + +static int _od_runtime_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + int ret; + + ret = omap_device_enable(pdev); + if (ret) { + dev_err(dev, "use pm_runtime_put_sync_suspend() in driver?\n"); + return ret; + } + + return pm_generic_runtime_resume(dev); +} + +static int _od_fail_runtime_suspend(struct device *dev) +{ + dev_warn(dev, "%s: FIXME: missing hwmod/omap_dev info\n", __func__); + return -ENODEV; +} + +static int _od_fail_runtime_resume(struct device *dev) +{ + dev_warn(dev, "%s: FIXME: missing hwmod/omap_dev info\n", __func__); + return -ENODEV; +} + +#endif + +#ifdef CONFIG_SUSPEND +static int _od_suspend_noirq(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od = to_omap_device(pdev); + int ret; + + /* Don't attempt late suspend on a driver that is not bound */ + if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER) + return 0; + + ret = pm_generic_suspend_noirq(dev); + + if (!ret && !pm_runtime_status_suspended(dev)) { + if (pm_generic_runtime_suspend(dev) == 0) { + omap_device_idle(pdev); + od->flags |= OMAP_DEVICE_SUSPENDED; + } + } + + return ret; +} + +static int _od_resume_noirq(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od = to_omap_device(pdev); + + if (od->flags & OMAP_DEVICE_SUSPENDED) { + od->flags &= ~OMAP_DEVICE_SUSPENDED; + omap_device_enable(pdev); + pm_generic_runtime_resume(dev); + } + + return pm_generic_resume_noirq(dev); +} +#else +#define _od_suspend_noirq NULL +#define _od_resume_noirq NULL +#endif + +static struct dev_pm_domain omap_device_fail_pm_domain = { + .ops = { + SET_RUNTIME_PM_OPS(_od_fail_runtime_suspend, + _od_fail_runtime_resume, NULL) + } +}; + +static struct dev_pm_domain omap_device_pm_domain = { + .ops = { + SET_RUNTIME_PM_OPS(_od_runtime_suspend, _od_runtime_resume, + NULL) + USE_PLATFORM_PM_SLEEP_OPS + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(_od_suspend_noirq, + _od_resume_noirq) + } +}; + +/* Public functions for use by device drivers through struct platform_data */ + +/** + * omap_device_enable - fully activate an omap_device + * @pdev: the platform device to activate + * + * Do whatever is necessary for the hwmods underlying omap_device @od + * to be accessible and ready to operate. This generally involves + * enabling clocks, setting SYSCONFIG registers; and in the future may + * involve remuxing pins. Device drivers should call this function + * indirectly via pm_runtime_get*(). Returns -EINVAL if called when + * the omap_device is already enabled, or passes along the return + * value of _omap_device_enable_hwmods(). + */ +int omap_device_enable(struct platform_device *pdev) +{ + int ret; + struct omap_device *od; + + od = to_omap_device(pdev); + + if (od->_state == OMAP_DEVICE_STATE_ENABLED) { + dev_warn(&pdev->dev, + "omap_device: %s() called from invalid state %d\n", + __func__, od->_state); + return -EINVAL; + } + + ret = _omap_device_enable_hwmods(od); + + if (ret == 0) + od->_state = OMAP_DEVICE_STATE_ENABLED; + + return ret; +} + +/** + * omap_device_idle - idle an omap_device + * @pdev: The platform_device (omap_device) to idle + * + * Idle omap_device @od. Device drivers call this function indirectly + * via pm_runtime_put*(). Returns -EINVAL if the omap_device is not + * currently enabled, or passes along the return value of + * _omap_device_idle_hwmods(). + */ +int omap_device_idle(struct platform_device *pdev) +{ + int ret; + struct omap_device *od; + + od = to_omap_device(pdev); + + if (od->_state != OMAP_DEVICE_STATE_ENABLED) { + dev_warn(&pdev->dev, + "omap_device: %s() called from invalid state %d\n", + __func__, od->_state); + return -EINVAL; + } + + ret = _omap_device_idle_hwmods(od); + + if (ret == 0) + od->_state = OMAP_DEVICE_STATE_IDLE; + + return ret; +} + +/** + * omap_device_assert_hardreset - set a device's hardreset line + * @pdev: struct platform_device * to reset + * @name: const char * name of the reset line + * + * Set the hardreset line identified by @name on the IP blocks + * associated with the hwmods backing the platform_device @pdev. All + * of the hwmods associated with @pdev must have the same hardreset + * line linked to them for this to work. Passes along the return value + * of omap_hwmod_assert_hardreset() in the event of any failure, or + * returns 0 upon success. + */ +int omap_device_assert_hardreset(struct platform_device *pdev, const char *name) +{ + struct omap_device *od = to_omap_device(pdev); + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) { + ret = omap_hwmod_assert_hardreset(od->hwmods[i], name); + if (ret) + break; + } + + return ret; +} + +/** + * omap_device_deassert_hardreset - release a device's hardreset line + * @pdev: struct platform_device * to reset + * @name: const char * name of the reset line + * + * Release the hardreset line identified by @name on the IP blocks + * associated with the hwmods backing the platform_device @pdev. All + * of the hwmods associated with @pdev must have the same hardreset + * line linked to them for this to work. Passes along the return + * value of omap_hwmod_deassert_hardreset() in the event of any + * failure, or returns 0 upon success. + */ +int omap_device_deassert_hardreset(struct platform_device *pdev, + const char *name) +{ + struct omap_device *od = to_omap_device(pdev); + int ret = 0; + int i; + + for (i = 0; i < od->hwmods_cnt; i++) { + ret = omap_hwmod_deassert_hardreset(od->hwmods[i], name); + if (ret) + break; + } + + return ret; +} + +static struct notifier_block platform_nb = { + .notifier_call = _omap_device_notifier_call, +}; + +static int __init omap_device_init(void) +{ + bus_register_notifier(&platform_bus_type, &platform_nb); + return 0; +} +omap_postcore_initcall(omap_device_init); + +/** + * omap_device_late_idle - idle devices without drivers + * @dev: struct device * associated with omap_device + * @data: unused + * + * Check the driver bound status of this device, and idle it + * if there is no driver attached. + */ +static int __init omap_device_late_idle(struct device *dev, void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + struct omap_device *od = to_omap_device(pdev); + int i; + + if (!od) + return 0; + + /* + * If omap_device state is enabled, but has no driver bound, + * idle it. + */ + + /* + * Some devices (like memory controllers) are always kept + * enabled, and should not be idled even with no drivers. + */ + for (i = 0; i < od->hwmods_cnt; i++) + if (od->hwmods[i]->flags & HWMOD_INIT_NO_IDLE) + return 0; + + if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER && + od->_driver_status != BUS_NOTIFY_BIND_DRIVER) { + if (od->_state == OMAP_DEVICE_STATE_ENABLED) { + dev_warn(dev, "%s: enabled but no driver. Idling\n", + __func__); + omap_device_idle(pdev); + } + } + + return 0; +} + +static int __init omap_device_late_init(void) +{ + bus_for_each_dev(&platform_bus_type, NULL, NULL, omap_device_late_idle); + + return 0; +} +omap_late_initcall_sync(omap_device_late_init); diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h new file mode 100644 index 000000000..fae09cfce --- /dev/null +++ b/arch/arm/mach-omap2/omap_device.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * omap_device headers + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * Developed in collaboration with (alphabetical order): Benoit + * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram + * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard + * Woodruff + * + * This type of functionality should be implemented as a proper + * omap_bus/omap_device in Linux. + * + * omap_device differs from omap_hwmod in that it includes external + * (e.g., board- and system-level) integration details. omap_hwmod + * stores hardware data that is invariant for a given OMAP chip. + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H + +#include <linux/kernel.h> +#include <linux/platform_device.h> + +#include "omap_hwmod.h" + +/* omap_device._state values */ +#define OMAP_DEVICE_STATE_UNKNOWN 0 +#define OMAP_DEVICE_STATE_ENABLED 1 +#define OMAP_DEVICE_STATE_IDLE 2 +#define OMAP_DEVICE_STATE_SHUTDOWN 3 + +/* omap_device.flags values */ +#define OMAP_DEVICE_SUSPENDED BIT(0) + +/** + * struct omap_device - omap_device wrapper for platform_devices + * @pdev: platform_device + * @hwmods_cnt: ARRAY_SIZE() of @hwmods + * @_state: one of OMAP_DEVICE_STATE_* (see above) + * @flags: device flags + * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h> + * @hwmods: (one .. many per omap_device) + * + * Integrates omap_hwmod data into Linux platform_device. + * + * Field names beginning with underscores are for the internal use of + * the omap_device code. + * + */ +struct omap_device { + struct platform_device *pdev; + unsigned long _driver_status; + u8 hwmods_cnt; + u8 _state; + u8 flags; + struct omap_hwmod *hwmods[] __counted_by(hwmods_cnt); +}; + +/* Device driver interface (call via platform_data fn ptrs) */ + +int omap_device_enable(struct platform_device *pdev); +int omap_device_idle(struct platform_device *pdev); + +/* Other */ + +int omap_device_assert_hardreset(struct platform_device *pdev, + const char *name); +int omap_device_deassert_hardreset(struct platform_device *pdev, + const char *name); + +/* Get omap_device pointer from platform_device pointer */ +static inline struct omap_device *to_omap_device(struct platform_device *pdev) +{ + return pdev ? pdev->archdata.od : NULL; +} +#endif diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c new file mode 100644 index 000000000..03cd523df --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -0,0 +1,3958 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod implementation for OMAP2/3/4 + * + * Copyright (C) 2009-2011 Nokia Corporation + * Copyright (C) 2011-2012 Texas Instruments, Inc. + * + * Paul Walmsley, Benoît Cousson, Kevin Hilman + * + * Created in collaboration with (alphabetical order): Thara Gopinath, + * Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari Poussa, Anand + * Sawant, Santosh Shilimkar, Richard Woodruff + * + * Introduction + * ------------ + * One way to view an OMAP SoC is as a collection of largely unrelated + * IP blocks connected by interconnects. The IP blocks include + * devices such as ARM processors, audio serial interfaces, UARTs, + * etc. Some of these devices, like the DSP, are created by TI; + * others, like the SGX, largely originate from external vendors. In + * TI's documentation, on-chip devices are referred to as "OMAP + * modules." Some of these IP blocks are identical across several + * OMAP versions. Others are revised frequently. + * + * These OMAP modules are tied together by various interconnects. + * Most of the address and data flow between modules is via OCP-based + * interconnects such as the L3 and L4 buses; but there are other + * interconnects that distribute the hardware clock tree, handle idle + * and reset signaling, supply power, and connect the modules to + * various pads or balls on the OMAP package. + * + * OMAP hwmod provides a consistent way to describe the on-chip + * hardware blocks and their integration into the rest of the chip. + * This description can be automatically generated from the TI + * hardware database. OMAP hwmod provides a standard, consistent API + * to reset, enable, idle, and disable these hardware blocks. And + * hwmod provides a way for other core code, such as the Linux device + * code or the OMAP power management and address space mapping code, + * to query the hardware database. + * + * Using hwmod + * ----------- + * Drivers won't call hwmod functions directly. That is done by the + * omap_device code, and in rare occasions, by custom integration code + * in arch/arm/ *omap*. The omap_device code includes functions to + * build a struct platform_device using omap_hwmod data, and that is + * currently how hwmod data is communicated to drivers and to the + * Linux driver model. Most drivers will call omap_hwmod functions only + * indirectly, via pm_runtime*() functions. + * + * From a layering perspective, here is where the OMAP hwmod code + * fits into the kernel software stack: + * + * +-------------------------------+ + * | Device driver code | + * | (e.g., drivers/) | + * +-------------------------------+ + * | Linux driver model | + * | (platform_device / | + * | platform_driver data/code) | + * +-------------------------------+ + * | OMAP core-driver integration | + * |(arch/arm/mach-omap2/devices.c)| + * +-------------------------------+ + * | omap_device code | + * | (../plat-omap/omap_device.c) | + * +-------------------------------+ + * ----> | omap_hwmod code/data | <----- + * | (../mach-omap2/omap_hwmod*) | + * +-------------------------------+ + * | OMAP clock/PRCM/register fns | + * | ({read,write}l_relaxed, clk*) | + * +-------------------------------+ + * + * Device drivers should not contain any OMAP-specific code or data in + * them. They should only contain code to operate the IP block that + * the driver is responsible for. This is because these IP blocks can + * also appear in other SoCs, either from TI (such as DaVinci) or from + * other manufacturers; and drivers should be reusable across other + * platforms. + * + * The OMAP hwmod code also will attempt to reset and idle all on-chip + * devices upon boot. The goal here is for the kernel to be + * completely self-reliant and independent from bootloaders. This is + * to ensure a repeatable configuration, both to ensure consistent + * runtime behavior, and to make it easier for others to reproduce + * bugs. + * + * OMAP module activity states + * --------------------------- + * The hwmod code considers modules to be in one of several activity + * states. IP blocks start out in an UNKNOWN state, then once they + * are registered via the hwmod code, proceed to the REGISTERED state. + * Once their clock names are resolved to clock pointers, the module + * enters the CLKS_INITED state; and finally, once the module has been + * reset and the integration registers programmed, the INITIALIZED state + * is entered. The hwmod code will then place the module into either + * the IDLE state to save power, or in the case of a critical system + * module, the ENABLED state. + * + * OMAP core integration code can then call omap_hwmod*() functions + * directly to move the module between the IDLE, ENABLED, and DISABLED + * states, as needed. This is done during both the PM idle loop, and + * in the OMAP core integration code's implementation of the PM runtime + * functions. + * + * References + * ---------- + * This is a partial list. + * - OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 (SWPU064) + * - OMAP2430 Multimedia Device POP Silicon Revision 2.1 (SWPU090) + * - OMAP34xx Multimedia Device Silicon Revision 3.1 (SWPU108) + * - OMAP4430 Multimedia Device Silicon Revision 1.0 (SWPU140) + * - Open Core Protocol Specification 2.2 + * + * To do: + * - handle IO mapping + * - bus throughput & module latency measurement code + * + * XXX add tests at the beginning of each function to ensure the hwmod is + * in the appropriate state + * XXX error return values should be checked to ensure that they are + * appropriate + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> +#include <linux/slab.h> +#include <linux/cpu.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/memblock.h> + +#include <linux/platform_data/ti-sysc.h> + +#include <dt-bindings/bus/ti-sysc.h> + +#include <asm/system_misc.h> + +#include "clock.h" +#include "omap_hwmod.h" + +#include "soc.h" +#include "common.h" +#include "clockdomain.h" +#include "hdq1w.h" +#include "mmc.h" +#include "powerdomain.h" +#include "cm2xxx.h" +#include "cm3xxx.h" +#include "cm33xx.h" +#include "prm.h" +#include "prm3xxx.h" +#include "prm44xx.h" +#include "prm33xx.h" +#include "prminst44xx.h" +#include "pm.h" +#include "wd_timer.h" + +/* Name of the OMAP hwmod for the MPU */ +#define MPU_INITIATOR_NAME "mpu" + +/* + * Number of struct omap_hwmod_link records per struct + * omap_hwmod_ocp_if record (master->slave and slave->master) + */ +#define LINKS_PER_OCP_IF 2 + +/* + * Address offset (in bytes) between the reset control and the reset + * status registers: 4 bytes on OMAP4 + */ +#define OMAP4_RST_CTRL_ST_OFFSET 4 + +/* + * Maximum length for module clock handle names + */ +#define MOD_CLK_MAX_NAME_LEN 32 + +/** + * struct clkctrl_provider - clkctrl provider mapping data + * @num_addrs: number of base address ranges for the provider + * @addr: base address(es) for the provider + * @size: size(s) of the provider address space(s) + * @node: device node associated with the provider + * @link: list link + */ +struct clkctrl_provider { + int num_addrs; + u32 *addr; + u32 *size; + struct device_node *node; + struct list_head link; +}; + +static LIST_HEAD(clkctrl_providers); + +/** + * struct omap_hwmod_reset - IP specific reset functions + * @match: string to match against the module name + * @len: number of characters to match + * @reset: IP specific reset function + * + * Used only in cases where struct omap_hwmod is dynamically allocated. + */ +struct omap_hwmod_reset { + const char *match; + int len; + int (*reset)(struct omap_hwmod *oh); +}; + +/** + * struct omap_hwmod_soc_ops - fn ptrs for some SoC-specific operations + * @enable_module: function to enable a module (via MODULEMODE) + * @disable_module: function to disable a module (via MODULEMODE) + * + * XXX Eventually this functionality will be hidden inside the PRM/CM + * device drivers. Until then, this should avoid huge blocks of cpu_is_*() + * conditionals in this code. + */ +struct omap_hwmod_soc_ops { + void (*enable_module)(struct omap_hwmod *oh); + int (*disable_module)(struct omap_hwmod *oh); + int (*wait_target_ready)(struct omap_hwmod *oh); + int (*assert_hardreset)(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri); + int (*deassert_hardreset)(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri); + int (*is_hardreset_asserted)(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri); + int (*init_clkdm)(struct omap_hwmod *oh); + void (*update_context_lost)(struct omap_hwmod *oh); + int (*get_context_lost)(struct omap_hwmod *oh); + int (*disable_direct_prcm)(struct omap_hwmod *oh); + u32 (*xlate_clkctrl)(struct omap_hwmod *oh); +}; + +/* soc_ops: adapts the omap_hwmod code to the currently-booted SoC */ +static struct omap_hwmod_soc_ops soc_ops; + +/* omap_hwmod_list contains all registered struct omap_hwmods */ +static LIST_HEAD(omap_hwmod_list); +static DEFINE_MUTEX(list_lock); + +/* mpu_oh: used to add/remove MPU initiator from sleepdep list */ +static struct omap_hwmod *mpu_oh; + +/* inited: set to true once the hwmod code is initialized */ +static bool inited; + +/* Private functions */ + +/** + * _update_sysc_cache - return the module OCP_SYSCONFIG register, keep copy + * @oh: struct omap_hwmod * + * + * Load the current value of the hwmod OCP_SYSCONFIG register into the + * struct omap_hwmod for later use. Returns -EINVAL if the hwmod has no + * OCP_SYSCONFIG register or 0 upon success. + */ +static int _update_sysc_cache(struct omap_hwmod *oh) +{ + if (!oh->class->sysc) { + WARN(1, "omap_hwmod: %s: cannot read OCP_SYSCONFIG: not defined on hwmod's class\n", oh->name); + return -EINVAL; + } + + /* XXX ensure module interface clock is up */ + + oh->_sysc_cache = omap_hwmod_read(oh, oh->class->sysc->sysc_offs); + + if (!(oh->class->sysc->sysc_flags & SYSC_NO_CACHE)) + oh->_int_flags |= _HWMOD_SYSCONFIG_LOADED; + + return 0; +} + +/** + * _write_sysconfig - write a value to the module's OCP_SYSCONFIG register + * @v: OCP_SYSCONFIG value to write + * @oh: struct omap_hwmod * + * + * Write @v into the module class' OCP_SYSCONFIG register, if it has + * one. No return value. + */ +static void _write_sysconfig(u32 v, struct omap_hwmod *oh) +{ + if (!oh->class->sysc) { + WARN(1, "omap_hwmod: %s: cannot write OCP_SYSCONFIG: not defined on hwmod's class\n", oh->name); + return; + } + + /* XXX ensure module interface clock is up */ + + /* Module might have lost context, always update cache and register */ + oh->_sysc_cache = v; + + /* + * Some IP blocks (such as RTC) require unlocking of IP before + * accessing its registers. If a function pointer is present + * to unlock, then call it before accessing sysconfig and + * call lock after writing sysconfig. + */ + if (oh->class->unlock) + oh->class->unlock(oh); + + omap_hwmod_write(v, oh, oh->class->sysc->sysc_offs); + + if (oh->class->lock) + oh->class->lock(oh); +} + +/** + * _set_master_standbymode: set the OCP_SYSCONFIG MIDLEMODE field in @v + * @oh: struct omap_hwmod * + * @standbymode: MIDLEMODE field bits + * @v: pointer to register contents to modify + * + * Update the master standby mode bits in @v to be @standbymode for + * the @oh hwmod. Does not write to the hardware. Returns -EINVAL + * upon error or 0 upon success. + */ +static int _set_master_standbymode(struct omap_hwmod *oh, u8 standbymode, + u32 *v) +{ + u32 mstandby_mask; + u8 mstandby_shift; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_MIDLEMODE)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name); + return -EINVAL; + } + + mstandby_shift = oh->class->sysc->sysc_fields->midle_shift; + mstandby_mask = (0x3 << mstandby_shift); + + *v &= ~mstandby_mask; + *v |= __ffs(standbymode) << mstandby_shift; + + return 0; +} + +/** + * _set_slave_idlemode: set the OCP_SYSCONFIG SIDLEMODE field in @v + * @oh: struct omap_hwmod * + * @idlemode: SIDLEMODE field bits + * @v: pointer to register contents to modify + * + * Update the slave idle mode bits in @v to be @idlemode for the @oh + * hwmod. Does not write to the hardware. Returns -EINVAL upon error + * or 0 upon success. + */ +static int _set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode, u32 *v) +{ + u32 sidle_mask; + u8 sidle_shift; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_SIDLEMODE)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name); + return -EINVAL; + } + + sidle_shift = oh->class->sysc->sysc_fields->sidle_shift; + sidle_mask = (0x3 << sidle_shift); + + *v &= ~sidle_mask; + *v |= __ffs(idlemode) << sidle_shift; + + return 0; +} + +/** + * _set_clockactivity: set OCP_SYSCONFIG.CLOCKACTIVITY bits in @v + * @oh: struct omap_hwmod * + * @clockact: CLOCKACTIVITY field bits + * @v: pointer to register contents to modify + * + * Update the clockactivity mode bits in @v to be @clockact for the + * @oh hwmod. Used for additional powersaving on some modules. Does + * not write to the hardware. Returns -EINVAL upon error or 0 upon + * success. + */ +static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v) +{ + u32 clkact_mask; + u8 clkact_shift; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_CLOCKACTIVITY)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name); + return -EINVAL; + } + + clkact_shift = oh->class->sysc->sysc_fields->clkact_shift; + clkact_mask = (0x3 << clkact_shift); + + *v &= ~clkact_mask; + *v |= clockact << clkact_shift; + + return 0; +} + +/** + * _set_softreset: set OCP_SYSCONFIG.SOFTRESET bit in @v + * @oh: struct omap_hwmod * + * @v: pointer to register contents to modify + * + * Set the SOFTRESET bit in @v for hwmod @oh. Returns -EINVAL upon + * error or 0 upon success. + */ +static int _set_softreset(struct omap_hwmod *oh, u32 *v) +{ + u32 softrst_mask; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name); + return -EINVAL; + } + + softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift); + + *v |= softrst_mask; + + return 0; +} + +/** + * _clear_softreset: clear OCP_SYSCONFIG.SOFTRESET bit in @v + * @oh: struct omap_hwmod * + * @v: pointer to register contents to modify + * + * Clear the SOFTRESET bit in @v for hwmod @oh. Returns -EINVAL upon + * error or 0 upon success. + */ +static int _clear_softreset(struct omap_hwmod *oh, u32 *v) +{ + u32 softrst_mask; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, + "omap_hwmod: %s: sysc_fields absent for sysconfig class\n", + oh->name); + return -EINVAL; + } + + softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift); + + *v &= ~softrst_mask; + + return 0; +} + +/** + * _wait_softreset_complete - wait for an OCP softreset to complete + * @oh: struct omap_hwmod * to wait on + * + * Wait until the IP block represented by @oh reports that its OCP + * softreset is complete. This can be triggered by software (see + * _ocp_softreset()) or by hardware upon returning from off-mode (one + * example is HSMMC). Waits for up to MAX_MODULE_SOFTRESET_WAIT + * microseconds. Returns the number of microseconds waited. + */ +static int _wait_softreset_complete(struct omap_hwmod *oh) +{ + struct omap_hwmod_class_sysconfig *sysc; + u32 softrst_mask; + int c = 0; + + sysc = oh->class->sysc; + + if (sysc->sysc_flags & SYSS_HAS_RESET_STATUS && sysc->syss_offs > 0) + omap_test_timeout((omap_hwmod_read(oh, sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + else if (sysc->sysc_flags & SYSC_HAS_RESET_STATUS) { + softrst_mask = (0x1 << sysc->sysc_fields->srst_shift); + omap_test_timeout(!(omap_hwmod_read(oh, sysc->sysc_offs) + & softrst_mask), + MAX_MODULE_SOFTRESET_WAIT, c); + } + + return c; +} + +/** + * _set_dmadisable: set OCP_SYSCONFIG.DMADISABLE bit in @v + * @oh: struct omap_hwmod * + * + * The DMADISABLE bit is a semi-automatic bit present in sysconfig register + * of some modules. When the DMA must perform read/write accesses, the + * DMADISABLE bit is cleared by the hardware. But when the DMA must stop + * for power management, software must set the DMADISABLE bit back to 1. + * + * Set the DMADISABLE bit in @v for hwmod @oh. Returns -EINVAL upon + * error or 0 upon success. + */ +static int _set_dmadisable(struct omap_hwmod *oh) +{ + u32 v; + u32 dmadisable_mask; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_DMADISABLE)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name); + return -EINVAL; + } + + /* clocks must be on for this operation */ + if (oh->_state != _HWMOD_STATE_ENABLED) { + pr_warn("omap_hwmod: %s: dma can be disabled only from enabled state\n", oh->name); + return -EINVAL; + } + + pr_debug("omap_hwmod: %s: setting DMADISABLE\n", oh->name); + + v = oh->_sysc_cache; + dmadisable_mask = + (0x1 << oh->class->sysc->sysc_fields->dmadisable_shift); + v |= dmadisable_mask; + _write_sysconfig(v, oh); + + return 0; +} + +/** + * _set_module_autoidle: set the OCP_SYSCONFIG AUTOIDLE field in @v + * @oh: struct omap_hwmod * + * @autoidle: desired AUTOIDLE bitfield value (0 or 1) + * @v: pointer to register contents to modify + * + * Update the module autoidle bit in @v to be @autoidle for the @oh + * hwmod. The autoidle bit controls whether the module can gate + * internal clocks automatically when it isn't doing anything; the + * exact function of this bit varies on a per-module basis. This + * function does not write to the hardware. Returns -EINVAL upon + * error or 0 upon success. + */ +static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle, + u32 *v) +{ + u32 autoidle_mask; + u8 autoidle_shift; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_AUTOIDLE)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name); + return -EINVAL; + } + + autoidle_shift = oh->class->sysc->sysc_fields->autoidle_shift; + autoidle_mask = (0x1 << autoidle_shift); + + *v &= ~autoidle_mask; + *v |= autoidle << autoidle_shift; + + return 0; +} + +/** + * _enable_wakeup: set OCP_SYSCONFIG.ENAWAKEUP bit in the hardware + * @oh: struct omap_hwmod * + * + * Allow the hardware module @oh to send wakeups. Returns -EINVAL + * upon error or 0 upon success. + */ +static int _enable_wakeup(struct omap_hwmod *oh, u32 *v) +{ + if (!oh->class->sysc || + !((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) || + (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) || + (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP))) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name); + return -EINVAL; + } + + if (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) + *v |= 0x1 << oh->class->sysc->sysc_fields->enwkup_shift; + + if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) + _set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART_WKUP, v); + if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) + _set_master_standbymode(oh, HWMOD_IDLEMODE_SMART_WKUP, v); + + /* XXX test pwrdm_get_wken for this hwmod's subsystem */ + + return 0; +} + +static struct clockdomain *_get_clkdm(struct omap_hwmod *oh) +{ + struct clk_hw_omap *clk; + + if (!oh) + return NULL; + + if (oh->clkdm) { + return oh->clkdm; + } else if (oh->_clk) { + if (!omap2_clk_is_hw_omap(__clk_get_hw(oh->_clk))) + return NULL; + clk = to_clk_hw_omap(__clk_get_hw(oh->_clk)); + return clk->clkdm; + } + return NULL; +} + +/** + * _add_initiator_dep: prevent @oh from smart-idling while @init_oh is active + * @oh: struct omap_hwmod * + * + * Prevent the hardware module @oh from entering idle while the + * hardare module initiator @init_oh is active. Useful when a module + * will be accessed by a particular initiator (e.g., if a module will + * be accessed by the IVA, there should be a sleepdep between the IVA + * initiator and the module). Only applies to modules in smart-idle + * mode. If the clockdomain is marked as not needing autodeps, return + * 0 without doing anything. Otherwise, returns -EINVAL upon error or + * passes along clkdm_add_sleepdep() value upon success. + */ +static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh) +{ + struct clockdomain *clkdm, *init_clkdm; + + clkdm = _get_clkdm(oh); + init_clkdm = _get_clkdm(init_oh); + + if (!clkdm || !init_clkdm) + return -EINVAL; + + if (clkdm && clkdm->flags & CLKDM_NO_AUTODEPS) + return 0; + + return clkdm_add_sleepdep(clkdm, init_clkdm); +} + +/** + * _del_initiator_dep: allow @oh to smart-idle even if @init_oh is active + * @oh: struct omap_hwmod * + * + * Allow the hardware module @oh to enter idle while the hardare + * module initiator @init_oh is active. Useful when a module will not + * be accessed by a particular initiator (e.g., if a module will not + * be accessed by the IVA, there should be no sleepdep between the IVA + * initiator and the module). Only applies to modules in smart-idle + * mode. If the clockdomain is marked as not needing autodeps, return + * 0 without doing anything. Returns -EINVAL upon error or passes + * along clkdm_del_sleepdep() value upon success. + */ +static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh) +{ + struct clockdomain *clkdm, *init_clkdm; + + clkdm = _get_clkdm(oh); + init_clkdm = _get_clkdm(init_oh); + + if (!clkdm || !init_clkdm) + return -EINVAL; + + if (clkdm && clkdm->flags & CLKDM_NO_AUTODEPS) + return 0; + + return clkdm_del_sleepdep(clkdm, init_clkdm); +} + +static const struct of_device_id ti_clkctrl_match_table[] __initconst = { + { .compatible = "ti,clkctrl" }, + { } +}; + +static int __init _setup_clkctrl_provider(struct device_node *np) +{ + struct clkctrl_provider *provider; + int i; + + provider = memblock_alloc(sizeof(*provider), SMP_CACHE_BYTES); + if (!provider) + return -ENOMEM; + + provider->node = np; + + provider->num_addrs = of_address_count(np); + + provider->addr = + memblock_alloc(sizeof(void *) * provider->num_addrs, + SMP_CACHE_BYTES); + if (!provider->addr) + return -ENOMEM; + + provider->size = + memblock_alloc(sizeof(u32) * provider->num_addrs, + SMP_CACHE_BYTES); + if (!provider->size) + return -ENOMEM; + + for (i = 0; i < provider->num_addrs; i++) { + struct resource res; + of_address_to_resource(np, i, &res); + provider->addr[i] = res.start; + provider->size[i] = resource_size(&res); + pr_debug("%s: %pOF: %pR\n", __func__, np, &res); + } + + list_add(&provider->link, &clkctrl_providers); + + return 0; +} + +static int __init _init_clkctrl_providers(void) +{ + struct device_node *np; + int ret = 0; + + for_each_matching_node(np, ti_clkctrl_match_table) { + ret = _setup_clkctrl_provider(np); + if (ret) { + of_node_put(np); + break; + } + } + + return ret; +} + +static u32 _omap4_xlate_clkctrl(struct omap_hwmod *oh) +{ + if (!oh->prcm.omap4.modulemode) + return 0; + + return omap_cm_xlate_clkctrl(oh->clkdm->prcm_partition, + oh->clkdm->cm_inst, + oh->prcm.omap4.clkctrl_offs); +} + +static struct clk *_lookup_clkctrl_clk(struct omap_hwmod *oh) +{ + struct clkctrl_provider *provider; + struct clk *clk; + u32 addr; + + if (!soc_ops.xlate_clkctrl) + return NULL; + + addr = soc_ops.xlate_clkctrl(oh); + if (!addr) + return NULL; + + pr_debug("%s: %s: addr=%x\n", __func__, oh->name, addr); + + list_for_each_entry(provider, &clkctrl_providers, link) { + int i; + + for (i = 0; i < provider->num_addrs; i++) { + if (provider->addr[i] <= addr && + provider->addr[i] + provider->size[i] > addr) { + struct of_phandle_args clkspec; + + clkspec.np = provider->node; + clkspec.args_count = 2; + clkspec.args[0] = addr - provider->addr[0]; + clkspec.args[1] = 0; + + clk = of_clk_get_from_provider(&clkspec); + + pr_debug("%s: %s got %p (offset=%x, provider=%pOF)\n", + __func__, oh->name, clk, + clkspec.args[0], provider->node); + + return clk; + } + } + } + + return NULL; +} + +/** + * _init_main_clk - get a struct clk * for the hwmod's main functional clk + * @oh: struct omap_hwmod * + * + * Called from _init_clocks(). Populates the @oh _clk (main + * functional clock pointer) if a clock matching the hwmod name is found, + * or a main_clk is present. Returns 0 on success or -EINVAL on error. + */ +static int _init_main_clk(struct omap_hwmod *oh) +{ + int ret = 0; + struct clk *clk = NULL; + + clk = _lookup_clkctrl_clk(oh); + + if (!IS_ERR_OR_NULL(clk)) { + pr_debug("%s: mapped main_clk %s for %s\n", __func__, + __clk_get_name(clk), oh->name); + oh->main_clk = __clk_get_name(clk); + oh->_clk = clk; + soc_ops.disable_direct_prcm(oh); + } else { + if (!oh->main_clk) + return 0; + + oh->_clk = clk_get(NULL, oh->main_clk); + } + + if (IS_ERR(oh->_clk)) { + pr_warn("omap_hwmod: %s: cannot clk_get main_clk %s\n", + oh->name, oh->main_clk); + return -EINVAL; + } + /* + * HACK: This needs a re-visit once clk_prepare() is implemented + * to do something meaningful. Today its just a no-op. + * If clk_prepare() is used at some point to do things like + * voltage scaling etc, then this would have to be moved to + * some point where subsystems like i2c and pmic become + * available. + */ + clk_prepare(oh->_clk); + + if (!_get_clkdm(oh)) + pr_debug("omap_hwmod: %s: missing clockdomain for %s.\n", + oh->name, oh->main_clk); + + return ret; +} + +/** + * _init_interface_clks - get a struct clk * for the hwmod's interface clks + * @oh: struct omap_hwmod * + * + * Called from _init_clocks(). Populates the @oh OCP slave interface + * clock pointers. Returns 0 on success or -EINVAL on error. + */ +static int _init_interface_clks(struct omap_hwmod *oh) +{ + struct omap_hwmod_ocp_if *os; + struct clk *c; + int ret = 0; + + list_for_each_entry(os, &oh->slave_ports, node) { + if (!os->clk) + continue; + + c = clk_get(NULL, os->clk); + if (IS_ERR(c)) { + pr_warn("omap_hwmod: %s: cannot clk_get interface_clk %s\n", + oh->name, os->clk); + ret = -EINVAL; + continue; + } + os->_clk = c; + /* + * HACK: This needs a re-visit once clk_prepare() is implemented + * to do something meaningful. Today its just a no-op. + * If clk_prepare() is used at some point to do things like + * voltage scaling etc, then this would have to be moved to + * some point where subsystems like i2c and pmic become + * available. + */ + clk_prepare(os->_clk); + } + + return ret; +} + +/** + * _init_opt_clks - get a struct clk * for the hwmod's optional clocks + * @oh: struct omap_hwmod * + * + * Called from _init_clocks(). Populates the @oh omap_hwmod_opt_clk + * clock pointers. Returns 0 on success or -EINVAL on error. + */ +static int _init_opt_clks(struct omap_hwmod *oh) +{ + struct omap_hwmod_opt_clk *oc; + struct clk *c; + int i; + int ret = 0; + + for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) { + c = clk_get(NULL, oc->clk); + if (IS_ERR(c)) { + pr_warn("omap_hwmod: %s: cannot clk_get opt_clk %s\n", + oh->name, oc->clk); + ret = -EINVAL; + continue; + } + oc->_clk = c; + /* + * HACK: This needs a re-visit once clk_prepare() is implemented + * to do something meaningful. Today its just a no-op. + * If clk_prepare() is used at some point to do things like + * voltage scaling etc, then this would have to be moved to + * some point where subsystems like i2c and pmic become + * available. + */ + clk_prepare(oc->_clk); + } + + return ret; +} + +static void _enable_optional_clocks(struct omap_hwmod *oh) +{ + struct omap_hwmod_opt_clk *oc; + int i; + + pr_debug("omap_hwmod: %s: enabling optional clocks\n", oh->name); + + for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) + if (oc->_clk) { + pr_debug("omap_hwmod: enable %s:%s\n", oc->role, + __clk_get_name(oc->_clk)); + clk_enable(oc->_clk); + } +} + +static void _disable_optional_clocks(struct omap_hwmod *oh) +{ + struct omap_hwmod_opt_clk *oc; + int i; + + pr_debug("omap_hwmod: %s: disabling optional clocks\n", oh->name); + + for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) + if (oc->_clk) { + pr_debug("omap_hwmod: disable %s:%s\n", oc->role, + __clk_get_name(oc->_clk)); + clk_disable(oc->_clk); + } +} + +/** + * _enable_clocks - enable hwmod main clock and interface clocks + * @oh: struct omap_hwmod * + * + * Enables all clocks necessary for register reads and writes to succeed + * on the hwmod @oh. Returns 0. + */ +static int _enable_clocks(struct omap_hwmod *oh) +{ + struct omap_hwmod_ocp_if *os; + + pr_debug("omap_hwmod: %s: enabling clocks\n", oh->name); + + if (oh->flags & HWMOD_OPT_CLKS_NEEDED) + _enable_optional_clocks(oh); + + if (oh->_clk) + clk_enable(oh->_clk); + + list_for_each_entry(os, &oh->slave_ports, node) { + if (os->_clk && (os->flags & OCPIF_SWSUP_IDLE)) { + omap2_clk_deny_idle(os->_clk); + clk_enable(os->_clk); + } + } + + /* The opt clocks are controlled by the device driver. */ + + return 0; +} + +/** + * _omap4_clkctrl_managed_by_clkfwk - true if clkctrl managed by clock framework + * @oh: struct omap_hwmod * + */ +static bool _omap4_clkctrl_managed_by_clkfwk(struct omap_hwmod *oh) +{ + if (oh->prcm.omap4.flags & HWMOD_OMAP4_CLKFWK_CLKCTR_CLOCK) + return true; + + return false; +} + +/** + * _omap4_has_clkctrl_clock - returns true if a module has clkctrl clock + * @oh: struct omap_hwmod * + */ +static bool _omap4_has_clkctrl_clock(struct omap_hwmod *oh) +{ + if (oh->prcm.omap4.clkctrl_offs) + return true; + + if (!oh->prcm.omap4.clkctrl_offs && + oh->prcm.omap4.flags & HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET) + return true; + + return false; +} + +/** + * _disable_clocks - disable hwmod main clock and interface clocks + * @oh: struct omap_hwmod * + * + * Disables the hwmod @oh main functional and interface clocks. Returns 0. + */ +static int _disable_clocks(struct omap_hwmod *oh) +{ + struct omap_hwmod_ocp_if *os; + + pr_debug("omap_hwmod: %s: disabling clocks\n", oh->name); + + if (oh->_clk) + clk_disable(oh->_clk); + + list_for_each_entry(os, &oh->slave_ports, node) { + if (os->_clk && (os->flags & OCPIF_SWSUP_IDLE)) { + clk_disable(os->_clk); + omap2_clk_allow_idle(os->_clk); + } + } + + if (oh->flags & HWMOD_OPT_CLKS_NEEDED) + _disable_optional_clocks(oh); + + /* The opt clocks are controlled by the device driver. */ + + return 0; +} + +/** + * _omap4_enable_module - enable CLKCTRL modulemode on OMAP4 + * @oh: struct omap_hwmod * + * + * Enables the PRCM module mode related to the hwmod @oh. + * No return value. + */ +static void _omap4_enable_module(struct omap_hwmod *oh) +{ + if (!oh->clkdm || !oh->prcm.omap4.modulemode || + _omap4_clkctrl_managed_by_clkfwk(oh)) + return; + + pr_debug("omap_hwmod: %s: %s: %d\n", + oh->name, __func__, oh->prcm.omap4.modulemode); + + omap_cm_module_enable(oh->prcm.omap4.modulemode, + oh->clkdm->prcm_partition, + oh->clkdm->cm_inst, oh->prcm.omap4.clkctrl_offs); +} + +/** + * _omap4_wait_target_disable - wait for a module to be disabled on OMAP4 + * @oh: struct omap_hwmod * + * + * Wait for a module @oh to enter slave idle. Returns 0 if the module + * does not have an IDLEST bit or if the module successfully enters + * slave idle; otherwise, pass along the return value of the + * appropriate *_cm*_wait_module_idle() function. + */ +static int _omap4_wait_target_disable(struct omap_hwmod *oh) +{ + if (!oh) + return -EINVAL; + + if (oh->_int_flags & _HWMOD_NO_MPU_PORT || !oh->clkdm) + return 0; + + if (oh->flags & HWMOD_NO_IDLEST) + return 0; + + if (_omap4_clkctrl_managed_by_clkfwk(oh)) + return 0; + + if (!_omap4_has_clkctrl_clock(oh)) + return 0; + + return omap_cm_wait_module_idle(oh->clkdm->prcm_partition, + oh->clkdm->cm_inst, + oh->prcm.omap4.clkctrl_offs, 0); +} + +/** + * _save_mpu_port_index - find and save the index to @oh's MPU port + * @oh: struct omap_hwmod * + * + * Determines the array index of the OCP slave port that the MPU uses + * to address the device, and saves it into the struct omap_hwmod. + * Intended to be called during hwmod registration only. No return + * value. + */ +static void __init _save_mpu_port_index(struct omap_hwmod *oh) +{ + struct omap_hwmod_ocp_if *os = NULL; + + if (!oh) + return; + + oh->_int_flags |= _HWMOD_NO_MPU_PORT; + + list_for_each_entry(os, &oh->slave_ports, node) { + if (os->user & OCP_USER_MPU) { + oh->_mpu_port = os; + oh->_int_flags &= ~_HWMOD_NO_MPU_PORT; + break; + } + } + + return; +} + +/** + * _find_mpu_rt_port - return omap_hwmod_ocp_if accessible by the MPU + * @oh: struct omap_hwmod * + * + * Given a pointer to a struct omap_hwmod record @oh, return a pointer + * to the struct omap_hwmod_ocp_if record that is used by the MPU to + * communicate with the IP block. This interface need not be directly + * connected to the MPU (and almost certainly is not), but is directly + * connected to the IP block represented by @oh. Returns a pointer + * to the struct omap_hwmod_ocp_if * upon success, or returns NULL upon + * error or if there does not appear to be a path from the MPU to this + * IP block. + */ +static struct omap_hwmod_ocp_if *_find_mpu_rt_port(struct omap_hwmod *oh) +{ + if (!oh || oh->_int_flags & _HWMOD_NO_MPU_PORT || oh->slaves_cnt == 0) + return NULL; + + return oh->_mpu_port; +}; + +/** + * _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG + * @oh: struct omap_hwmod * + * + * Ensure that the OCP_SYSCONFIG register for the IP block represented + * by @oh is set to indicate to the PRCM that the IP block is active. + * Usually this means placing the module into smart-idle mode and + * smart-standby, but if there is a bug in the automatic idle handling + * for the IP block, it may need to be placed into the force-idle or + * no-idle variants of these modes. No return value. + */ +static void _enable_sysc(struct omap_hwmod *oh) +{ + u8 idlemode, sf; + u32 v; + bool clkdm_act; + struct clockdomain *clkdm; + + if (!oh->class->sysc) + return; + + /* + * Wait until reset has completed, this is needed as the IP + * block is reset automatically by hardware in some cases + * (off-mode for example), and the drivers require the + * IP to be ready when they access it + */ + if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET) + _enable_optional_clocks(oh); + _wait_softreset_complete(oh); + if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET) + _disable_optional_clocks(oh); + + v = oh->_sysc_cache; + sf = oh->class->sysc->sysc_flags; + + clkdm = _get_clkdm(oh); + if (sf & SYSC_HAS_SIDLEMODE) { + if (oh->flags & HWMOD_SWSUP_SIDLE || + oh->flags & HWMOD_SWSUP_SIDLE_ACT) { + idlemode = HWMOD_IDLEMODE_NO; + } else { + if (sf & SYSC_HAS_ENAWAKEUP) + _enable_wakeup(oh, &v); + if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + } + + /* + * This is special handling for some IPs like + * 32k sync timer. Force them to idle! + */ + clkdm_act = (clkdm && clkdm->flags & CLKDM_ACTIVE_WITH_MPU); + if (clkdm_act && !(oh->class->sysc->idlemodes & + (SIDLE_SMART | SIDLE_SMART_WKUP))) + idlemode = HWMOD_IDLEMODE_FORCE; + + _set_slave_idlemode(oh, idlemode, &v); + } + + if (sf & SYSC_HAS_MIDLEMODE) { + if (oh->flags & HWMOD_FORCE_MSTANDBY) { + idlemode = HWMOD_IDLEMODE_FORCE; + } else if (oh->flags & HWMOD_SWSUP_MSTANDBY) { + idlemode = HWMOD_IDLEMODE_NO; + } else { + if (sf & SYSC_HAS_ENAWAKEUP) + _enable_wakeup(oh, &v); + if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + } + _set_master_standbymode(oh, idlemode, &v); + } + + /* + * XXX The clock framework should handle this, by + * calling into this code. But this must wait until the + * clock structures are tagged with omap_hwmod entries + */ + if ((oh->flags & HWMOD_SET_DEFAULT_CLOCKACT) && + (sf & SYSC_HAS_CLOCKACTIVITY)) + _set_clockactivity(oh, CLOCKACT_TEST_ICLK, &v); + + _write_sysconfig(v, oh); + + /* + * Set the autoidle bit only after setting the smartidle bit + * Setting this will not have any impact on the other modules. + */ + if (sf & SYSC_HAS_AUTOIDLE) { + idlemode = (oh->flags & HWMOD_NO_OCP_AUTOIDLE) ? + 0 : 1; + _set_module_autoidle(oh, idlemode, &v); + _write_sysconfig(v, oh); + } +} + +/** + * _idle_sysc - try to put a module into idle via OCP_SYSCONFIG + * @oh: struct omap_hwmod * + * + * If module is marked as SWSUP_SIDLE, force the module into slave + * idle; otherwise, configure it for smart-idle. If module is marked + * as SWSUP_MSUSPEND, force the module into master standby; otherwise, + * configure it for smart-standby. No return value. + */ +static void _idle_sysc(struct omap_hwmod *oh) +{ + u8 idlemode, sf; + u32 v; + + if (!oh->class->sysc) + return; + + v = oh->_sysc_cache; + sf = oh->class->sysc->sysc_flags; + + if (sf & SYSC_HAS_SIDLEMODE) { + if (oh->flags & HWMOD_SWSUP_SIDLE) { + idlemode = HWMOD_IDLEMODE_FORCE; + } else { + if (sf & SYSC_HAS_ENAWAKEUP) + _enable_wakeup(oh, &v); + if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + } + _set_slave_idlemode(oh, idlemode, &v); + } + + if (sf & SYSC_HAS_MIDLEMODE) { + if ((oh->flags & HWMOD_SWSUP_MSTANDBY) || + (oh->flags & HWMOD_FORCE_MSTANDBY)) { + idlemode = HWMOD_IDLEMODE_FORCE; + } else { + if (sf & SYSC_HAS_ENAWAKEUP) + _enable_wakeup(oh, &v); + if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + } + _set_master_standbymode(oh, idlemode, &v); + } + + /* If the cached value is the same as the new value, skip the write */ + if (oh->_sysc_cache != v) + _write_sysconfig(v, oh); +} + +/** + * _shutdown_sysc - force a module into idle via OCP_SYSCONFIG + * @oh: struct omap_hwmod * + * + * Force the module into slave idle and master suspend. No return + * value. + */ +static void _shutdown_sysc(struct omap_hwmod *oh) +{ + u32 v; + u8 sf; + + if (!oh->class->sysc) + return; + + v = oh->_sysc_cache; + sf = oh->class->sysc->sysc_flags; + + if (sf & SYSC_HAS_SIDLEMODE) + _set_slave_idlemode(oh, HWMOD_IDLEMODE_FORCE, &v); + + if (sf & SYSC_HAS_MIDLEMODE) + _set_master_standbymode(oh, HWMOD_IDLEMODE_FORCE, &v); + + if (sf & SYSC_HAS_AUTOIDLE) + _set_module_autoidle(oh, 1, &v); + + _write_sysconfig(v, oh); +} + +/** + * _lookup - find an omap_hwmod by name + * @name: find an omap_hwmod by name + * + * Return a pointer to an omap_hwmod by name, or NULL if not found. + */ +static struct omap_hwmod *_lookup(const char *name) +{ + struct omap_hwmod *oh, *temp_oh; + + oh = NULL; + + list_for_each_entry(temp_oh, &omap_hwmod_list, node) { + if (!strcmp(name, temp_oh->name)) { + oh = temp_oh; + break; + } + } + + return oh; +} + +/** + * _init_clkdm - look up a clockdomain name, store pointer in omap_hwmod + * @oh: struct omap_hwmod * + * + * Convert a clockdomain name stored in a struct omap_hwmod into a + * clockdomain pointer, and save it into the struct omap_hwmod. + * Return -EINVAL if the clkdm_name lookup failed. + */ +static int _init_clkdm(struct omap_hwmod *oh) +{ + if (!oh->clkdm_name) { + pr_debug("omap_hwmod: %s: missing clockdomain\n", oh->name); + return 0; + } + + oh->clkdm = clkdm_lookup(oh->clkdm_name); + if (!oh->clkdm) { + pr_warn("omap_hwmod: %s: could not associate to clkdm %s\n", + oh->name, oh->clkdm_name); + return 0; + } + + pr_debug("omap_hwmod: %s: associated to clkdm %s\n", + oh->name, oh->clkdm_name); + + return 0; +} + +/** + * _init_clocks - clk_get() all clocks associated with this hwmod. Retrieve as + * well the clockdomain. + * @oh: struct omap_hwmod * + * @np: device_node mapped to this hwmod + * + * Called by omap_hwmod_setup_*() (after omap2_clk_init()). + * Resolves all clock names embedded in the hwmod. Returns 0 on + * success, or a negative error code on failure. + */ +static int _init_clocks(struct omap_hwmod *oh, struct device_node *np) +{ + int ret = 0; + + if (oh->_state != _HWMOD_STATE_REGISTERED) + return 0; + + pr_debug("omap_hwmod: %s: looking up clocks\n", oh->name); + + if (soc_ops.init_clkdm) + ret |= soc_ops.init_clkdm(oh); + + ret |= _init_main_clk(oh); + ret |= _init_interface_clks(oh); + ret |= _init_opt_clks(oh); + + if (!ret) + oh->_state = _HWMOD_STATE_CLKS_INITED; + else + pr_warn("omap_hwmod: %s: cannot _init_clocks\n", oh->name); + + return ret; +} + +/** + * _lookup_hardreset - fill register bit info for this hwmod/reset line + * @oh: struct omap_hwmod * + * @name: name of the reset line in the context of this hwmod + * @ohri: struct omap_hwmod_rst_info * that this function will fill in + * + * Return the bit position of the reset line that match the + * input name. Return -ENOENT if not found. + */ +static int _lookup_hardreset(struct omap_hwmod *oh, const char *name, + struct omap_hwmod_rst_info *ohri) +{ + int i; + + for (i = 0; i < oh->rst_lines_cnt; i++) { + const char *rst_line = oh->rst_lines[i].name; + if (!strcmp(rst_line, name)) { + ohri->rst_shift = oh->rst_lines[i].rst_shift; + ohri->st_shift = oh->rst_lines[i].st_shift; + pr_debug("omap_hwmod: %s: %s: %s: rst %d st %d\n", + oh->name, __func__, rst_line, ohri->rst_shift, + ohri->st_shift); + + return 0; + } + } + + return -ENOENT; +} + +/** + * _assert_hardreset - assert the HW reset line of submodules + * contained in the hwmod module. + * @oh: struct omap_hwmod * + * @name: name of the reset line to lookup and assert + * + * Some IP like dsp, ipu or iva contain processor that require an HW + * reset line to be assert / deassert in order to enable fully the IP. + * Returns -EINVAL if @oh is null, -ENOSYS if we have no way of + * asserting the hardreset line on the currently-booted SoC, or passes + * along the return value from _lookup_hardreset() or the SoC's + * assert_hardreset code. + */ +static int _assert_hardreset(struct omap_hwmod *oh, const char *name) +{ + struct omap_hwmod_rst_info ohri; + int ret = -EINVAL; + + if (!oh) + return -EINVAL; + + if (!soc_ops.assert_hardreset) + return -ENOSYS; + + ret = _lookup_hardreset(oh, name, &ohri); + if (ret < 0) + return ret; + + ret = soc_ops.assert_hardreset(oh, &ohri); + + return ret; +} + +/** + * _deassert_hardreset - deassert the HW reset line of submodules contained + * in the hwmod module. + * @oh: struct omap_hwmod * + * @name: name of the reset line to look up and deassert + * + * Some IP like dsp, ipu or iva contain processor that require an HW + * reset line to be assert / deassert in order to enable fully the IP. + * Returns -EINVAL if @oh is null, -ENOSYS if we have no way of + * deasserting the hardreset line on the currently-booted SoC, or passes + * along the return value from _lookup_hardreset() or the SoC's + * deassert_hardreset code. + */ +static int _deassert_hardreset(struct omap_hwmod *oh, const char *name) +{ + struct omap_hwmod_rst_info ohri; + int ret = -EINVAL; + + if (!oh) + return -EINVAL; + + if (!soc_ops.deassert_hardreset) + return -ENOSYS; + + ret = _lookup_hardreset(oh, name, &ohri); + if (ret < 0) + return ret; + + if (oh->clkdm) { + /* + * A clockdomain must be in SW_SUP otherwise reset + * might not be completed. The clockdomain can be set + * in HW_AUTO only when the module become ready. + */ + clkdm_deny_idle(oh->clkdm); + ret = clkdm_hwmod_enable(oh->clkdm, oh); + if (ret) { + WARN(1, "omap_hwmod: %s: could not enable clockdomain %s: %d\n", + oh->name, oh->clkdm->name, ret); + return ret; + } + } + + _enable_clocks(oh); + if (soc_ops.enable_module) + soc_ops.enable_module(oh); + + ret = soc_ops.deassert_hardreset(oh, &ohri); + + if (soc_ops.disable_module) + soc_ops.disable_module(oh); + _disable_clocks(oh); + + if (ret == -EBUSY) + pr_warn("omap_hwmod: %s: failed to hardreset\n", oh->name); + + if (oh->clkdm) { + /* + * Set the clockdomain to HW_AUTO, assuming that the + * previous state was HW_AUTO. + */ + clkdm_allow_idle(oh->clkdm); + + clkdm_hwmod_disable(oh->clkdm, oh); + } + + return ret; +} + +/** + * _read_hardreset - read the HW reset line state of submodules + * contained in the hwmod module + * @oh: struct omap_hwmod * + * @name: name of the reset line to look up and read + * + * Return the state of the reset line. Returns -EINVAL if @oh is + * null, -ENOSYS if we have no way of reading the hardreset line + * status on the currently-booted SoC, or passes along the return + * value from _lookup_hardreset() or the SoC's is_hardreset_asserted + * code. + */ +static int _read_hardreset(struct omap_hwmod *oh, const char *name) +{ + struct omap_hwmod_rst_info ohri; + int ret = -EINVAL; + + if (!oh) + return -EINVAL; + + if (!soc_ops.is_hardreset_asserted) + return -ENOSYS; + + ret = _lookup_hardreset(oh, name, &ohri); + if (ret < 0) + return ret; + + return soc_ops.is_hardreset_asserted(oh, &ohri); +} + +/** + * _are_all_hardreset_lines_asserted - return true if the @oh is hard-reset + * @oh: struct omap_hwmod * + * + * If all hardreset lines associated with @oh are asserted, then return true. + * Otherwise, if part of @oh is out hardreset or if no hardreset lines + * associated with @oh are asserted, then return false. + * This function is used to avoid executing some parts of the IP block + * enable/disable sequence if its hardreset line is set. + */ +static bool _are_all_hardreset_lines_asserted(struct omap_hwmod *oh) +{ + int i, rst_cnt = 0; + + if (oh->rst_lines_cnt == 0) + return false; + + for (i = 0; i < oh->rst_lines_cnt; i++) + if (_read_hardreset(oh, oh->rst_lines[i].name) > 0) + rst_cnt++; + + if (oh->rst_lines_cnt == rst_cnt) + return true; + + return false; +} + +/** + * _are_any_hardreset_lines_asserted - return true if any part of @oh is + * hard-reset + * @oh: struct omap_hwmod * + * + * If any hardreset lines associated with @oh are asserted, then + * return true. Otherwise, if no hardreset lines associated with @oh + * are asserted, or if @oh has no hardreset lines, then return false. + * This function is used to avoid executing some parts of the IP block + * enable/disable sequence if any hardreset line is set. + */ +static bool _are_any_hardreset_lines_asserted(struct omap_hwmod *oh) +{ + int rst_cnt = 0; + int i; + + for (i = 0; i < oh->rst_lines_cnt && rst_cnt == 0; i++) + if (_read_hardreset(oh, oh->rst_lines[i].name) > 0) + rst_cnt++; + + return (rst_cnt) ? true : false; +} + +/** + * _omap4_disable_module - enable CLKCTRL modulemode on OMAP4 + * @oh: struct omap_hwmod * + * + * Disable the PRCM module mode related to the hwmod @oh. + * Return EINVAL if the modulemode is not supported and 0 in case of success. + */ +static int _omap4_disable_module(struct omap_hwmod *oh) +{ + int v; + + if (!oh->clkdm || !oh->prcm.omap4.modulemode || + _omap4_clkctrl_managed_by_clkfwk(oh)) + return -EINVAL; + + /* + * Since integration code might still be doing something, only + * disable if all lines are under hardreset. + */ + if (_are_any_hardreset_lines_asserted(oh)) + return 0; + + pr_debug("omap_hwmod: %s: %s\n", oh->name, __func__); + + omap_cm_module_disable(oh->clkdm->prcm_partition, oh->clkdm->cm_inst, + oh->prcm.omap4.clkctrl_offs); + + v = _omap4_wait_target_disable(oh); + if (v) + pr_warn("omap_hwmod: %s: _wait_target_disable failed\n", + oh->name); + + return 0; +} + +/** + * _ocp_softreset - reset an omap_hwmod via the OCP_SYSCONFIG bit + * @oh: struct omap_hwmod * + * + * Resets an omap_hwmod @oh via the OCP_SYSCONFIG bit. hwmod must be + * enabled for this to work. Returns -ENOENT if the hwmod cannot be + * reset this way, -EINVAL if the hwmod is in the wrong state, + * -ETIMEDOUT if the module did not reset in time, or 0 upon success. + * + * In OMAP3 a specific SYSSTATUS register is used to get the reset status. + * Starting in OMAP4, some IPs do not have SYSSTATUS registers and instead + * use the SYSCONFIG softreset bit to provide the status. + * + * Note that some IP like McBSP do have reset control but don't have + * reset status. + */ +static int _ocp_softreset(struct omap_hwmod *oh) +{ + u32 v; + int c = 0; + int ret = 0; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET)) + return -ENOENT; + + /* clocks must be on for this operation */ + if (oh->_state != _HWMOD_STATE_ENABLED) { + pr_warn("omap_hwmod: %s: reset can only be entered from enabled state\n", + oh->name); + return -EINVAL; + } + + /* For some modules, all optionnal clocks need to be enabled as well */ + if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET) + _enable_optional_clocks(oh); + + pr_debug("omap_hwmod: %s: resetting via OCP SOFTRESET\n", oh->name); + + v = oh->_sysc_cache; + ret = _set_softreset(oh, &v); + if (ret) + goto dis_opt_clks; + + _write_sysconfig(v, oh); + + if (oh->class->sysc->srst_udelay) + udelay(oh->class->sysc->srst_udelay); + + c = _wait_softreset_complete(oh); + if (c == MAX_MODULE_SOFTRESET_WAIT) { + pr_warn("omap_hwmod: %s: softreset failed (waited %d usec)\n", + oh->name, MAX_MODULE_SOFTRESET_WAIT); + ret = -ETIMEDOUT; + goto dis_opt_clks; + } else { + pr_debug("omap_hwmod: %s: softreset in %d usec\n", oh->name, c); + } + + ret = _clear_softreset(oh, &v); + if (ret) + goto dis_opt_clks; + + _write_sysconfig(v, oh); + + /* + * XXX add _HWMOD_STATE_WEDGED for modules that don't come back from + * _wait_target_ready() or _reset() + */ + +dis_opt_clks: + if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET) + _disable_optional_clocks(oh); + + return ret; +} + +/** + * _reset - reset an omap_hwmod + * @oh: struct omap_hwmod * + * + * Resets an omap_hwmod @oh. If the module has a custom reset + * function pointer defined, then call it to reset the IP block, and + * pass along its return value to the caller. Otherwise, if the IP + * block has an OCP_SYSCONFIG register with a SOFTRESET bitfield + * associated with it, call a function to reset the IP block via that + * method, and pass along the return value to the caller. Finally, if + * the IP block has some hardreset lines associated with it, assert + * all of those, but do _not_ deassert them. (This is because driver + * authors have expressed an apparent requirement to control the + * deassertion of the hardreset lines themselves.) + * + * The default software reset mechanism for most OMAP IP blocks is + * triggered via the OCP_SYSCONFIG.SOFTRESET bit. However, some + * hwmods cannot be reset via this method. Some are not targets and + * therefore have no OCP header registers to access. Others (like the + * IVA) have idiosyncratic reset sequences. So for these relatively + * rare cases, custom reset code can be supplied in the struct + * omap_hwmod_class .reset function pointer. + * + * _set_dmadisable() is called to set the DMADISABLE bit so that it + * does not prevent idling of the system. This is necessary for cases + * where ROMCODE/BOOTLOADER uses dma and transfers control to the + * kernel without disabling dma. + * + * Passes along the return value from either _ocp_softreset() or the + * custom reset function - these must return -EINVAL if the hwmod + * cannot be reset this way or if the hwmod is in the wrong state, + * -ETIMEDOUT if the module did not reset in time, or 0 upon success. + */ +static int _reset(struct omap_hwmod *oh) +{ + int i, r; + + pr_debug("omap_hwmod: %s: resetting\n", oh->name); + + if (oh->class->reset) { + r = oh->class->reset(oh); + } else { + if (oh->rst_lines_cnt > 0) { + for (i = 0; i < oh->rst_lines_cnt; i++) + _assert_hardreset(oh, oh->rst_lines[i].name); + return 0; + } else { + r = _ocp_softreset(oh); + if (r == -ENOENT) + r = 0; + } + } + + _set_dmadisable(oh); + + /* + * OCP_SYSCONFIG bits need to be reprogrammed after a + * softreset. The _enable() function should be split to avoid + * the rewrite of the OCP_SYSCONFIG register. + */ + if (oh->class->sysc) { + _update_sysc_cache(oh); + _enable_sysc(oh); + } + + return r; +} + +/** + * _omap4_update_context_lost - increment hwmod context loss counter if + * hwmod context was lost, and clear hardware context loss reg + * @oh: hwmod to check for context loss + * + * If the PRCM indicates that the hwmod @oh lost context, increment + * our in-memory context loss counter, and clear the RM_*_CONTEXT + * bits. No return value. + */ +static void _omap4_update_context_lost(struct omap_hwmod *oh) +{ + if (oh->prcm.omap4.flags & HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT) + return; + + if (!prm_was_any_context_lost_old(oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.context_offs)) + return; + + oh->prcm.omap4.context_lost_counter++; + prm_clear_context_loss_flags_old(oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.context_offs); +} + +/** + * _omap4_get_context_lost - get context loss counter for a hwmod + * @oh: hwmod to get context loss counter for + * + * Returns the in-memory context loss counter for a hwmod. + */ +static int _omap4_get_context_lost(struct omap_hwmod *oh) +{ + return oh->prcm.omap4.context_lost_counter; +} + +/** + * _enable - enable an omap_hwmod + * @oh: struct omap_hwmod * + * + * Enables an omap_hwmod @oh such that the MPU can access the hwmod's + * register target. Returns -EINVAL if the hwmod is in the wrong + * state or passes along the return value of _wait_target_ready(). + */ +static int _enable(struct omap_hwmod *oh) +{ + int r; + + pr_debug("omap_hwmod: %s: enabling\n", oh->name); + + /* + * hwmods with HWMOD_INIT_NO_IDLE flag set are left in enabled + * state at init. + */ + if (oh->_int_flags & _HWMOD_SKIP_ENABLE) { + oh->_int_flags &= ~_HWMOD_SKIP_ENABLE; + return 0; + } + + if (oh->_state != _HWMOD_STATE_INITIALIZED && + oh->_state != _HWMOD_STATE_IDLE && + oh->_state != _HWMOD_STATE_DISABLED) { + WARN(1, "omap_hwmod: %s: enabled state can only be entered from initialized, idle, or disabled state\n", + oh->name); + return -EINVAL; + } + + /* + * If an IP block contains HW reset lines and all of them are + * asserted, we let integration code associated with that + * block handle the enable. We've received very little + * information on what those driver authors need, and until + * detailed information is provided and the driver code is + * posted to the public lists, this is probably the best we + * can do. + */ + if (_are_all_hardreset_lines_asserted(oh)) + return 0; + + _add_initiator_dep(oh, mpu_oh); + + if (oh->clkdm) { + /* + * A clockdomain must be in SW_SUP before enabling + * completely the module. The clockdomain can be set + * in HW_AUTO only when the module become ready. + */ + clkdm_deny_idle(oh->clkdm); + r = clkdm_hwmod_enable(oh->clkdm, oh); + if (r) { + WARN(1, "omap_hwmod: %s: could not enable clockdomain %s: %d\n", + oh->name, oh->clkdm->name, r); + return r; + } + } + + _enable_clocks(oh); + if (soc_ops.enable_module) + soc_ops.enable_module(oh); + if (oh->flags & HWMOD_BLOCK_WFI) + cpu_idle_poll_ctrl(true); + + if (soc_ops.update_context_lost) + soc_ops.update_context_lost(oh); + + r = (soc_ops.wait_target_ready) ? soc_ops.wait_target_ready(oh) : + -EINVAL; + if (oh->clkdm && !(oh->flags & HWMOD_CLKDM_NOAUTO)) + clkdm_allow_idle(oh->clkdm); + + if (!r) { + oh->_state = _HWMOD_STATE_ENABLED; + + /* Access the sysconfig only if the target is ready */ + if (oh->class->sysc) { + if (!(oh->_int_flags & _HWMOD_SYSCONFIG_LOADED)) + _update_sysc_cache(oh); + _enable_sysc(oh); + } + } else { + if (soc_ops.disable_module) + soc_ops.disable_module(oh); + _disable_clocks(oh); + pr_err("omap_hwmod: %s: _wait_target_ready failed: %d\n", + oh->name, r); + + if (oh->clkdm) + clkdm_hwmod_disable(oh->clkdm, oh); + } + + return r; +} + +/** + * _idle - idle an omap_hwmod + * @oh: struct omap_hwmod * + * + * Idles an omap_hwmod @oh. This should be called once the hwmod has + * no further work. Returns -EINVAL if the hwmod is in the wrong + * state or returns 0. + */ +static int _idle(struct omap_hwmod *oh) +{ + if (oh->flags & HWMOD_NO_IDLE) { + oh->_int_flags |= _HWMOD_SKIP_ENABLE; + return 0; + } + + pr_debug("omap_hwmod: %s: idling\n", oh->name); + + if (_are_all_hardreset_lines_asserted(oh)) + return 0; + + if (oh->_state != _HWMOD_STATE_ENABLED) { + WARN(1, "omap_hwmod: %s: idle state can only be entered from enabled state\n", + oh->name); + return -EINVAL; + } + + if (oh->class->sysc) + _idle_sysc(oh); + _del_initiator_dep(oh, mpu_oh); + + /* + * If HWMOD_CLKDM_NOAUTO is set then we don't + * deny idle the clkdm again since idle was already denied + * in _enable() + */ + if (oh->clkdm && !(oh->flags & HWMOD_CLKDM_NOAUTO)) + clkdm_deny_idle(oh->clkdm); + + if (oh->flags & HWMOD_BLOCK_WFI) + cpu_idle_poll_ctrl(false); + if (soc_ops.disable_module) + soc_ops.disable_module(oh); + + /* + * The module must be in idle mode before disabling any parents + * clocks. Otherwise, the parent clock might be disabled before + * the module transition is done, and thus will prevent the + * transition to complete properly. + */ + _disable_clocks(oh); + if (oh->clkdm) { + clkdm_allow_idle(oh->clkdm); + clkdm_hwmod_disable(oh->clkdm, oh); + } + + oh->_state = _HWMOD_STATE_IDLE; + + return 0; +} + +/** + * _shutdown - shutdown an omap_hwmod + * @oh: struct omap_hwmod * + * + * Shut down an omap_hwmod @oh. This should be called when the driver + * used for the hwmod is removed or unloaded or if the driver is not + * used by the system. Returns -EINVAL if the hwmod is in the wrong + * state or returns 0. + */ +static int _shutdown(struct omap_hwmod *oh) +{ + int ret, i; + u8 prev_state; + + if (_are_all_hardreset_lines_asserted(oh)) + return 0; + + if (oh->_state != _HWMOD_STATE_IDLE && + oh->_state != _HWMOD_STATE_ENABLED) { + WARN(1, "omap_hwmod: %s: disabled state can only be entered from idle, or enabled state\n", + oh->name); + return -EINVAL; + } + + pr_debug("omap_hwmod: %s: disabling\n", oh->name); + + if (oh->class->pre_shutdown) { + prev_state = oh->_state; + if (oh->_state == _HWMOD_STATE_IDLE) + _enable(oh); + ret = oh->class->pre_shutdown(oh); + if (ret) { + if (prev_state == _HWMOD_STATE_IDLE) + _idle(oh); + return ret; + } + } + + if (oh->class->sysc) { + if (oh->_state == _HWMOD_STATE_IDLE) + _enable(oh); + _shutdown_sysc(oh); + } + + /* clocks and deps are already disabled in idle */ + if (oh->_state == _HWMOD_STATE_ENABLED) { + _del_initiator_dep(oh, mpu_oh); + /* XXX what about the other system initiators here? dma, dsp */ + if (oh->flags & HWMOD_BLOCK_WFI) + cpu_idle_poll_ctrl(false); + if (soc_ops.disable_module) + soc_ops.disable_module(oh); + _disable_clocks(oh); + if (oh->clkdm) + clkdm_hwmod_disable(oh->clkdm, oh); + } + /* XXX Should this code also force-disable the optional clocks? */ + + for (i = 0; i < oh->rst_lines_cnt; i++) + _assert_hardreset(oh, oh->rst_lines[i].name); + + oh->_state = _HWMOD_STATE_DISABLED; + + return 0; +} + +static int of_dev_find_hwmod(struct device_node *np, + struct omap_hwmod *oh) +{ + int count, i, res; + const char *p; + + count = of_property_count_strings(np, "ti,hwmods"); + if (count < 1) + return -ENODEV; + + for (i = 0; i < count; i++) { + res = of_property_read_string_index(np, "ti,hwmods", + i, &p); + if (res) + continue; + if (!strcmp(p, oh->name)) { + pr_debug("omap_hwmod: dt %pOFn[%i] uses hwmod %s\n", + np, i, oh->name); + return i; + } + } + + return -ENODEV; +} + +/** + * of_dev_hwmod_lookup - look up needed hwmod from dt blob + * @np: struct device_node * + * @oh: struct omap_hwmod * + * @index: index of the entry found + * @found: struct device_node * found or NULL + * + * Parse the dt blob and find out needed hwmod. Recursive function is + * implemented to take care hierarchical dt blob parsing. + * Return: Returns 0 on success, -ENODEV when not found. + */ +static int of_dev_hwmod_lookup(struct device_node *np, + struct omap_hwmod *oh, + int *index, + struct device_node **found) +{ + struct device_node *np0 = NULL; + int res; + + res = of_dev_find_hwmod(np, oh); + if (res >= 0) { + *found = np; + *index = res; + return 0; + } + + for_each_child_of_node(np, np0) { + struct device_node *fc; + int i; + + res = of_dev_hwmod_lookup(np0, oh, &i, &fc); + if (res == 0) { + *found = fc; + *index = i; + of_node_put(np0); + return 0; + } + } + + *found = NULL; + *index = 0; + + return -ENODEV; +} + +/** + * omap_hwmod_fix_mpu_rt_idx - fix up mpu_rt_idx register offsets + * + * @oh: struct omap_hwmod * + * @np: struct device_node * + * + * Fix up module register offsets for modules with mpu_rt_idx. + * Only needed for cpsw with interconnect target module defined + * in device tree while still using legacy hwmod platform data + * for rev, sysc and syss registers. + * + * Can be removed when all cpsw hwmod platform data has been + * dropped. + */ +static void omap_hwmod_fix_mpu_rt_idx(struct omap_hwmod *oh, + struct device_node *np, + struct resource *res) +{ + struct device_node *child = NULL; + int error; + + child = of_get_next_child(np, child); + if (!child) + return; + + error = of_address_to_resource(child, oh->mpu_rt_idx, res); + if (error) + pr_err("%s: error mapping mpu_rt_idx: %i\n", + __func__, error); +} + +/** + * omap_hwmod_parse_module_range - map module IO range from device tree + * @oh: struct omap_hwmod * + * @np: struct device_node * + * + * Parse the device tree range an interconnect target module provides + * for it's child device IP blocks. This way we can support the old + * "ti,hwmods" property with just dts data without a need for platform + * data for IO resources. And we don't need all the child IP device + * nodes available in the dts. + */ +int omap_hwmod_parse_module_range(struct omap_hwmod *oh, + struct device_node *np, + struct resource *res) +{ + struct property *prop; + const char *name; + int err; + + of_property_for_each_string(np, "compatible", prop, name) + if (!strncmp("ti,sysc-", name, 8)) + break; + + if (!name) + return -ENOENT; + + err = of_range_to_resource(np, 0, res); + if (err) + return err; + + pr_debug("omap_hwmod: %s %pOFn at %pR\n", + oh->name, np, res); + + if (oh && oh->mpu_rt_idx) { + omap_hwmod_fix_mpu_rt_idx(oh, np, res); + + return 0; + } + + return 0; +} + +/** + * _init_mpu_rt_base - populate the virtual address for a hwmod + * @oh: struct omap_hwmod * to locate the virtual address + * @data: (unused, caller should pass NULL) + * @index: index of the reg entry iospace in device tree + * @np: struct device_node * of the IP block's device node in the DT data + * + * Cache the virtual address used by the MPU to access this IP block's + * registers. This address is needed early so the OCP registers that + * are part of the device's address space can be ioremapped properly. + * + * If SYSC access is not needed, the registers will not be remapped + * and non-availability of MPU access is not treated as an error. + * + * Returns 0 on success, -EINVAL if an invalid hwmod is passed, and + * -ENXIO on absent or invalid register target address space. + */ +static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data, + int index, struct device_node *np) +{ + void __iomem *va_start = NULL; + struct resource res; + int error; + + if (!oh) + return -EINVAL; + + _save_mpu_port_index(oh); + + /* if we don't need sysc access we don't need to ioremap */ + if (!oh->class->sysc) + return 0; + + /* we can't continue without MPU PORT if we need sysc access */ + if (oh->_int_flags & _HWMOD_NO_MPU_PORT) + return -ENXIO; + + if (!np) { + pr_err("omap_hwmod: %s: no dt node\n", oh->name); + return -ENXIO; + } + + /* Do we have a dts range for the interconnect target module? */ + error = omap_hwmod_parse_module_range(oh, np, &res); + if (!error) + va_start = ioremap(res.start, resource_size(&res)); + + /* No ranges, rely on device reg entry */ + if (!va_start) + va_start = of_iomap(np, index + oh->mpu_rt_idx); + if (!va_start) { + pr_err("omap_hwmod: %s: Missing dt reg%i for %pOF\n", + oh->name, index, np); + return -ENXIO; + } + + pr_debug("omap_hwmod: %s: MPU register target at va %p\n", + oh->name, va_start); + + oh->_mpu_rt_va = va_start; + return 0; +} + +static void __init parse_module_flags(struct omap_hwmod *oh, + struct device_node *np) +{ + if (of_property_read_bool(np, "ti,no-reset-on-init")) + oh->flags |= HWMOD_INIT_NO_RESET; + if (of_property_read_bool(np, "ti,no-idle-on-init")) + oh->flags |= HWMOD_INIT_NO_IDLE; + if (of_property_read_bool(np, "ti,no-idle")) + oh->flags |= HWMOD_NO_IDLE; +} + +/** + * _init - initialize internal data for the hwmod @oh + * @oh: struct omap_hwmod * + * @data: (unused) + * + * Look up the clocks and the address space used by the MPU to access + * registers belonging to the hwmod @oh. @oh must already be + * registered at this point. This is the first of two phases for + * hwmod initialization. Code called here does not touch any hardware + * registers, it simply prepares internal data structures. Returns 0 + * upon success or if the hwmod isn't registered or if the hwmod's + * address space is not defined, or -EINVAL upon failure. + */ +static int __init _init(struct omap_hwmod *oh, void *data) +{ + int r, index; + struct device_node *np = NULL; + struct device_node *bus; + + if (oh->_state != _HWMOD_STATE_REGISTERED) + return 0; + + bus = of_find_node_by_name(NULL, "ocp"); + if (!bus) + return -ENODEV; + + r = of_dev_hwmod_lookup(bus, oh, &index, &np); + if (r) + pr_debug("omap_hwmod: %s missing dt data\n", oh->name); + else if (np && index) + pr_warn("omap_hwmod: %s using broken dt data from %pOFn\n", + oh->name, np); + + r = _init_mpu_rt_base(oh, NULL, index, np); + if (r < 0) { + WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n", + oh->name); + r = 0; + goto out_put_node; + } + + r = _init_clocks(oh, np); + if (r < 0) { + WARN(1, "omap_hwmod: %s: couldn't init clocks\n", oh->name); + r = -EINVAL; + goto out_put_node; + } + + if (np) { + struct device_node *child; + + parse_module_flags(oh, np); + child = of_get_next_child(np, NULL); + if (child) { + parse_module_flags(oh, child); + of_node_put(child); + } + } + + oh->_state = _HWMOD_STATE_INITIALIZED; + + r = 0; + +out_put_node: + of_node_put(bus); + return r; +} + +/** + * _setup_iclk_autoidle - configure an IP block's interface clocks + * @oh: struct omap_hwmod * + * + * Set up the module's interface clocks. XXX This function is still mostly + * a stub; implementing this properly requires iclk autoidle usecounting in + * the clock code. No return value. + */ +static void _setup_iclk_autoidle(struct omap_hwmod *oh) +{ + struct omap_hwmod_ocp_if *os; + + if (oh->_state != _HWMOD_STATE_INITIALIZED) + return; + + list_for_each_entry(os, &oh->slave_ports, node) { + if (!os->_clk) + continue; + + if (os->flags & OCPIF_SWSUP_IDLE) { + /* + * we might have multiple users of one iclk with + * different requirements, disable autoidle when + * the module is enabled, e.g. dss iclk + */ + } else { + /* we are enabling autoidle afterwards anyways */ + clk_enable(os->_clk); + } + } + + return; +} + +/** + * _setup_reset - reset an IP block during the setup process + * @oh: struct omap_hwmod * + * + * Reset the IP block corresponding to the hwmod @oh during the setup + * process. The IP block is first enabled so it can be successfully + * reset. Returns 0 upon success or a negative error code upon + * failure. + */ +static int _setup_reset(struct omap_hwmod *oh) +{ + int r = 0; + + if (oh->_state != _HWMOD_STATE_INITIALIZED) + return -EINVAL; + + if (oh->flags & HWMOD_EXT_OPT_MAIN_CLK) + return -EPERM; + + if (oh->rst_lines_cnt == 0) { + r = _enable(oh); + if (r) { + pr_warn("omap_hwmod: %s: cannot be enabled for reset (%d)\n", + oh->name, oh->_state); + return -EINVAL; + } + } + + if (!(oh->flags & HWMOD_INIT_NO_RESET)) + r = _reset(oh); + + return r; +} + +/** + * _setup_postsetup - transition to the appropriate state after _setup + * @oh: struct omap_hwmod * + * + * Place an IP block represented by @oh into a "post-setup" state -- + * either IDLE, ENABLED, or DISABLED. ("post-setup" simply means that + * this function is called at the end of _setup().) The postsetup + * state for an IP block can be changed by calling + * omap_hwmod_enter_postsetup_state() early in the boot process, + * before one of the omap_hwmod_setup*() functions are called for the + * IP block. + * + * The IP block stays in this state until a PM runtime-based driver is + * loaded for that IP block. A post-setup state of IDLE is + * appropriate for almost all IP blocks with runtime PM-enabled + * drivers, since those drivers are able to enable the IP block. A + * post-setup state of ENABLED is appropriate for kernels with PM + * runtime disabled. The DISABLED state is appropriate for unusual IP + * blocks such as the MPU WDTIMER on kernels without WDTIMER drivers + * included, since the WDTIMER starts running on reset and will reset + * the MPU if left active. + * + * This post-setup mechanism is deprecated. Once all of the OMAP + * drivers have been converted to use PM runtime, and all of the IP + * block data and interconnect data is available to the hwmod code, it + * should be possible to replace this mechanism with a "lazy reset" + * arrangement. In a "lazy reset" setup, each IP block is enabled + * when the driver first probes, then all remaining IP blocks without + * drivers are either shut down or enabled after the drivers have + * loaded. However, this cannot take place until the above + * preconditions have been met, since otherwise the late reset code + * has no way of knowing which IP blocks are in use by drivers, and + * which ones are unused. + * + * No return value. + */ +static void _setup_postsetup(struct omap_hwmod *oh) +{ + u8 postsetup_state; + + if (oh->rst_lines_cnt > 0) + return; + + postsetup_state = oh->_postsetup_state; + if (postsetup_state == _HWMOD_STATE_UNKNOWN) + postsetup_state = _HWMOD_STATE_ENABLED; + + /* + * XXX HWMOD_INIT_NO_IDLE does not belong in hwmod data - + * it should be set by the core code as a runtime flag during startup + */ + if ((oh->flags & (HWMOD_INIT_NO_IDLE | HWMOD_NO_IDLE)) && + (postsetup_state == _HWMOD_STATE_IDLE)) { + oh->_int_flags |= _HWMOD_SKIP_ENABLE; + postsetup_state = _HWMOD_STATE_ENABLED; + } + + if (postsetup_state == _HWMOD_STATE_IDLE) + _idle(oh); + else if (postsetup_state == _HWMOD_STATE_DISABLED) + _shutdown(oh); + else if (postsetup_state != _HWMOD_STATE_ENABLED) + WARN(1, "hwmod: %s: unknown postsetup state %d! defaulting to enabled\n", + oh->name, postsetup_state); + + return; +} + +/** + * _setup - prepare IP block hardware for use + * @oh: struct omap_hwmod * + * @data: (unused, pass NULL) + * + * Configure the IP block represented by @oh. This may include + * enabling the IP block, resetting it, and placing it into a + * post-setup state, depending on the type of IP block and applicable + * flags. IP blocks are reset to prevent any previous configuration + * by the bootloader or previous operating system from interfering + * with power management or other parts of the system. The reset can + * be avoided; see omap_hwmod_no_setup_reset(). This is the second of + * two phases for hwmod initialization. Code called here generally + * affects the IP block hardware, or system integration hardware + * associated with the IP block. Returns 0. + */ +static int _setup(struct omap_hwmod *oh, void *data) +{ + if (oh->_state != _HWMOD_STATE_INITIALIZED) + return 0; + + if (oh->parent_hwmod) { + int r; + + r = _enable(oh->parent_hwmod); + WARN(r, "hwmod: %s: setup: failed to enable parent hwmod %s\n", + oh->name, oh->parent_hwmod->name); + } + + _setup_iclk_autoidle(oh); + + if (!_setup_reset(oh)) + _setup_postsetup(oh); + + if (oh->parent_hwmod) { + u8 postsetup_state; + + postsetup_state = oh->parent_hwmod->_postsetup_state; + + if (postsetup_state == _HWMOD_STATE_IDLE) + _idle(oh->parent_hwmod); + else if (postsetup_state == _HWMOD_STATE_DISABLED) + _shutdown(oh->parent_hwmod); + else if (postsetup_state != _HWMOD_STATE_ENABLED) + WARN(1, "hwmod: %s: unknown postsetup state %d! defaulting to enabled\n", + oh->parent_hwmod->name, postsetup_state); + } + + return 0; +} + +/** + * _register - register a struct omap_hwmod + * @oh: struct omap_hwmod * + * + * Registers the omap_hwmod @oh. Returns -EEXIST if an omap_hwmod + * already has been registered by the same name; -EINVAL if the + * omap_hwmod is in the wrong state, if @oh is NULL, if the + * omap_hwmod's class field is NULL; if the omap_hwmod is missing a + * name, or if the omap_hwmod's class is missing a name; or 0 upon + * success. + * + * XXX The data should be copied into bootmem, so the original data + * should be marked __initdata and freed after init. This would allow + * unneeded omap_hwmods to be freed on multi-OMAP configurations. Note + * that the copy process would be relatively complex due to the large number + * of substructures. + */ +static int _register(struct omap_hwmod *oh) +{ + if (!oh || !oh->name || !oh->class || !oh->class->name || + (oh->_state != _HWMOD_STATE_UNKNOWN)) + return -EINVAL; + + pr_debug("omap_hwmod: %s: registering\n", oh->name); + + if (_lookup(oh->name)) + return -EEXIST; + + list_add_tail(&oh->node, &omap_hwmod_list); + + INIT_LIST_HEAD(&oh->slave_ports); + spin_lock_init(&oh->_lock); + lockdep_set_class(&oh->_lock, &oh->hwmod_key); + + oh->_state = _HWMOD_STATE_REGISTERED; + + /* + * XXX Rather than doing a strcmp(), this should test a flag + * set in the hwmod data, inserted by the autogenerator code. + */ + if (!strcmp(oh->name, MPU_INITIATOR_NAME)) + mpu_oh = oh; + + return 0; +} + +/** + * _add_link - add an interconnect between two IP blocks + * @oi: pointer to a struct omap_hwmod_ocp_if record + * + * Add struct omap_hwmod_link records connecting the slave IP block + * specified in @oi->slave to @oi. This code is assumed to run before + * preemption or SMP has been enabled, thus avoiding the need for + * locking in this code. Changes to this assumption will require + * additional locking. Returns 0. + */ +static int _add_link(struct omap_hwmod_ocp_if *oi) +{ + pr_debug("omap_hwmod: %s -> %s: adding link\n", oi->master->name, + oi->slave->name); + + list_add(&oi->node, &oi->slave->slave_ports); + oi->slave->slaves_cnt++; + + return 0; +} + +/** + * _register_link - register a struct omap_hwmod_ocp_if + * @oi: struct omap_hwmod_ocp_if * + * + * Registers the omap_hwmod_ocp_if record @oi. Returns -EEXIST if it + * has already been registered; -EINVAL if @oi is NULL or if the + * record pointed to by @oi is missing required fields; or 0 upon + * success. + * + * XXX The data should be copied into bootmem, so the original data + * should be marked __initdata and freed after init. This would allow + * unneeded omap_hwmods to be freed on multi-OMAP configurations. + */ +static int __init _register_link(struct omap_hwmod_ocp_if *oi) +{ + if (!oi || !oi->master || !oi->slave || !oi->user) + return -EINVAL; + + if (oi->_int_flags & _OCPIF_INT_FLAGS_REGISTERED) + return -EEXIST; + + pr_debug("omap_hwmod: registering link from %s to %s\n", + oi->master->name, oi->slave->name); + + /* + * Register the connected hwmods, if they haven't been + * registered already + */ + if (oi->master->_state != _HWMOD_STATE_REGISTERED) + _register(oi->master); + + if (oi->slave->_state != _HWMOD_STATE_REGISTERED) + _register(oi->slave); + + _add_link(oi); + + oi->_int_flags |= _OCPIF_INT_FLAGS_REGISTERED; + + return 0; +} + +/* Static functions intended only for use in soc_ops field function pointers */ + +/** + * _omap2xxx_3xxx_wait_target_ready - wait for a module to leave slave idle + * @oh: struct omap_hwmod * + * + * Wait for a module @oh to leave slave idle. Returns 0 if the module + * does not have an IDLEST bit or if the module successfully leaves + * slave idle; otherwise, pass along the return value of the + * appropriate *_cm*_wait_module_ready() function. + */ +static int _omap2xxx_3xxx_wait_target_ready(struct omap_hwmod *oh) +{ + if (!oh) + return -EINVAL; + + if (oh->flags & HWMOD_NO_IDLEST) + return 0; + + if (!_find_mpu_rt_port(oh)) + return 0; + + /* XXX check module SIDLEMODE, hardreset status, enabled clocks */ + + return omap_cm_wait_module_ready(0, oh->prcm.omap2.module_offs, + oh->prcm.omap2.idlest_reg_id, + oh->prcm.omap2.idlest_idle_bit); +} + +/** + * _omap4_wait_target_ready - wait for a module to leave slave idle + * @oh: struct omap_hwmod * + * + * Wait for a module @oh to leave slave idle. Returns 0 if the module + * does not have an IDLEST bit or if the module successfully leaves + * slave idle; otherwise, pass along the return value of the + * appropriate *_cm*_wait_module_ready() function. + */ +static int _omap4_wait_target_ready(struct omap_hwmod *oh) +{ + if (!oh) + return -EINVAL; + + if (oh->flags & HWMOD_NO_IDLEST || !oh->clkdm) + return 0; + + if (!_find_mpu_rt_port(oh)) + return 0; + + if (_omap4_clkctrl_managed_by_clkfwk(oh)) + return 0; + + if (!_omap4_has_clkctrl_clock(oh)) + return 0; + + /* XXX check module SIDLEMODE, hardreset status */ + + return omap_cm_wait_module_ready(oh->clkdm->prcm_partition, + oh->clkdm->cm_inst, + oh->prcm.omap4.clkctrl_offs, 0); +} + +/** + * _omap2_assert_hardreset - call OMAP2 PRM hardreset fn with hwmod args + * @oh: struct omap_hwmod * to assert hardreset + * @ohri: hardreset line data + * + * Call omap2_prm_assert_hardreset() with parameters extracted from + * the hwmod @oh and the hardreset line data @ohri. Only intended for + * use as an soc_ops function pointer. Passes along the return value + * from omap2_prm_assert_hardreset(). XXX This function is scheduled + * for removal when the PRM code is moved into drivers/. + */ +static int _omap2_assert_hardreset(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri) +{ + return omap_prm_assert_hardreset(ohri->rst_shift, 0, + oh->prcm.omap2.module_offs, 0); +} + +/** + * _omap2_deassert_hardreset - call OMAP2 PRM hardreset fn with hwmod args + * @oh: struct omap_hwmod * to deassert hardreset + * @ohri: hardreset line data + * + * Call omap2_prm_deassert_hardreset() with parameters extracted from + * the hwmod @oh and the hardreset line data @ohri. Only intended for + * use as an soc_ops function pointer. Passes along the return value + * from omap2_prm_deassert_hardreset(). XXX This function is + * scheduled for removal when the PRM code is moved into drivers/. + */ +static int _omap2_deassert_hardreset(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri) +{ + return omap_prm_deassert_hardreset(ohri->rst_shift, ohri->st_shift, 0, + oh->prcm.omap2.module_offs, 0, 0); +} + +/** + * _omap2_is_hardreset_asserted - call OMAP2 PRM hardreset fn with hwmod args + * @oh: struct omap_hwmod * to test hardreset + * @ohri: hardreset line data + * + * Call omap2_prm_is_hardreset_asserted() with parameters extracted + * from the hwmod @oh and the hardreset line data @ohri. Only + * intended for use as an soc_ops function pointer. Passes along the + * return value from omap2_prm_is_hardreset_asserted(). XXX This + * function is scheduled for removal when the PRM code is moved into + * drivers/. + */ +static int _omap2_is_hardreset_asserted(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri) +{ + return omap_prm_is_hardreset_asserted(ohri->st_shift, 0, + oh->prcm.omap2.module_offs, 0); +} + +/** + * _omap4_assert_hardreset - call OMAP4 PRM hardreset fn with hwmod args + * @oh: struct omap_hwmod * to assert hardreset + * @ohri: hardreset line data + * + * Call omap4_prminst_assert_hardreset() with parameters extracted + * from the hwmod @oh and the hardreset line data @ohri. Only + * intended for use as an soc_ops function pointer. Passes along the + * return value from omap4_prminst_assert_hardreset(). XXX This + * function is scheduled for removal when the PRM code is moved into + * drivers/. + */ +static int _omap4_assert_hardreset(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri) +{ + if (!oh->clkdm) + return -EINVAL; + + return omap_prm_assert_hardreset(ohri->rst_shift, + oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.rstctrl_offs); +} + +/** + * _omap4_deassert_hardreset - call OMAP4 PRM hardreset fn with hwmod args + * @oh: struct omap_hwmod * to deassert hardreset + * @ohri: hardreset line data + * + * Call omap4_prminst_deassert_hardreset() with parameters extracted + * from the hwmod @oh and the hardreset line data @ohri. Only + * intended for use as an soc_ops function pointer. Passes along the + * return value from omap4_prminst_deassert_hardreset(). XXX This + * function is scheduled for removal when the PRM code is moved into + * drivers/. + */ +static int _omap4_deassert_hardreset(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri) +{ + if (!oh->clkdm) + return -EINVAL; + + if (ohri->st_shift) + pr_err("omap_hwmod: %s: %s: hwmod data error: OMAP4 does not support st_shift\n", + oh->name, ohri->name); + return omap_prm_deassert_hardreset(ohri->rst_shift, ohri->rst_shift, + oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.rstctrl_offs, + oh->prcm.omap4.rstctrl_offs + + OMAP4_RST_CTRL_ST_OFFSET); +} + +/** + * _omap4_is_hardreset_asserted - call OMAP4 PRM hardreset fn with hwmod args + * @oh: struct omap_hwmod * to test hardreset + * @ohri: hardreset line data + * + * Call omap4_prminst_is_hardreset_asserted() with parameters + * extracted from the hwmod @oh and the hardreset line data @ohri. + * Only intended for use as an soc_ops function pointer. Passes along + * the return value from omap4_prminst_is_hardreset_asserted(). XXX + * This function is scheduled for removal when the PRM code is moved + * into drivers/. + */ +static int _omap4_is_hardreset_asserted(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri) +{ + if (!oh->clkdm) + return -EINVAL; + + return omap_prm_is_hardreset_asserted(ohri->rst_shift, + oh->clkdm->pwrdm.ptr-> + prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.rstctrl_offs); +} + +/** + * _omap4_disable_direct_prcm - disable direct PRCM control for hwmod + * @oh: struct omap_hwmod * to disable control for + * + * Disables direct PRCM clkctrl done by hwmod core. Instead, the hwmod + * will be using its main_clk to enable/disable the module. Returns + * 0 if successful. + */ +static int _omap4_disable_direct_prcm(struct omap_hwmod *oh) +{ + if (!oh) + return -EINVAL; + + oh->prcm.omap4.flags |= HWMOD_OMAP4_CLKFWK_CLKCTR_CLOCK; + + return 0; +} + +/** + * _am33xx_deassert_hardreset - call AM33XX PRM hardreset fn with hwmod args + * @oh: struct omap_hwmod * to deassert hardreset + * @ohri: hardreset line data + * + * Call am33xx_prminst_deassert_hardreset() with parameters extracted + * from the hwmod @oh and the hardreset line data @ohri. Only + * intended for use as an soc_ops function pointer. Passes along the + * return value from am33xx_prminst_deassert_hardreset(). XXX This + * function is scheduled for removal when the PRM code is moved into + * drivers/. + */ +static int _am33xx_deassert_hardreset(struct omap_hwmod *oh, + struct omap_hwmod_rst_info *ohri) +{ + return omap_prm_deassert_hardreset(ohri->rst_shift, ohri->st_shift, + oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.rstctrl_offs, + oh->prcm.omap4.rstst_offs); +} + +/* Public functions */ + +u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs) +{ + if (oh->flags & HWMOD_16BIT_REG) + return readw_relaxed(oh->_mpu_rt_va + reg_offs); + else + return readl_relaxed(oh->_mpu_rt_va + reg_offs); +} + +void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs) +{ + if (oh->flags & HWMOD_16BIT_REG) + writew_relaxed(v, oh->_mpu_rt_va + reg_offs); + else + writel_relaxed(v, oh->_mpu_rt_va + reg_offs); +} + +/** + * omap_hwmod_softreset - reset a module via SYSCONFIG.SOFTRESET bit + * @oh: struct omap_hwmod * + * + * This is a public function exposed to drivers. Some drivers may need to do + * some settings before and after resetting the device. Those drivers after + * doing the necessary settings could use this function to start a reset by + * setting the SYSCONFIG.SOFTRESET bit. + */ +int omap_hwmod_softreset(struct omap_hwmod *oh) +{ + u32 v; + int ret; + + if (!oh || !(oh->_sysc_cache)) + return -EINVAL; + + v = oh->_sysc_cache; + ret = _set_softreset(oh, &v); + if (ret) + goto error; + _write_sysconfig(v, oh); + + ret = _clear_softreset(oh, &v); + if (ret) + goto error; + _write_sysconfig(v, oh); + +error: + return ret; +} + +/** + * omap_hwmod_lookup - look up a registered omap_hwmod by name + * @name: name of the omap_hwmod to look up + * + * Given a @name of an omap_hwmod, return a pointer to the registered + * struct omap_hwmod *, or NULL upon error. + */ +struct omap_hwmod *omap_hwmod_lookup(const char *name) +{ + struct omap_hwmod *oh; + + if (!name) + return NULL; + + oh = _lookup(name); + + return oh; +} + +/** + * omap_hwmod_for_each - call function for each registered omap_hwmod + * @fn: pointer to a callback function + * @data: void * data to pass to callback function + * + * Call @fn for each registered omap_hwmod, passing @data to each + * function. @fn must return 0 for success or any other value for + * failure. If @fn returns non-zero, the iteration across omap_hwmods + * will stop and the non-zero return value will be passed to the + * caller of omap_hwmod_for_each(). @fn is called with + * omap_hwmod_for_each() held. + */ +int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh, void *data), + void *data) +{ + struct omap_hwmod *temp_oh; + int ret = 0; + + if (!fn) + return -EINVAL; + + list_for_each_entry(temp_oh, &omap_hwmod_list, node) { + ret = (*fn)(temp_oh, data); + if (ret) + break; + } + + return ret; +} + +/** + * omap_hwmod_register_links - register an array of hwmod links + * @ois: pointer to an array of omap_hwmod_ocp_if to register + * + * Intended to be called early in boot before the clock framework is + * initialized. If @ois is not null, will register all omap_hwmods + * listed in @ois that are valid for this chip. Returns -EINVAL if + * omap_hwmod_init() hasn't been called before calling this function, + * -ENOMEM if the link memory area can't be allocated, or 0 upon + * success. + */ +int __init omap_hwmod_register_links(struct omap_hwmod_ocp_if **ois) +{ + int r, i; + + if (!inited) + return -EINVAL; + + if (!ois) + return 0; + + if (ois[0] == NULL) /* Empty list */ + return 0; + + i = 0; + do { + r = _register_link(ois[i]); + WARN(r && r != -EEXIST, + "omap_hwmod: _register_link(%s -> %s) returned %d\n", + ois[i]->master->name, ois[i]->slave->name, r); + } while (ois[++i]); + + return 0; +} + +static int __init omap_hwmod_setup_one(const char *oh_name); + +/** + * _ensure_mpu_hwmod_is_setup - ensure the MPU SS hwmod is init'ed and set up + * @oh: pointer to the hwmod currently being set up (usually not the MPU) + * + * If the hwmod data corresponding to the MPU subsystem IP block + * hasn't been initialized and set up yet, do so now. This must be + * done first since sleep dependencies may be added from other hwmods + * to the MPU. Intended to be called only by omap_hwmod_setup*(). No + * return value. + */ +static void __init _ensure_mpu_hwmod_is_setup(struct omap_hwmod *oh) +{ + if (!mpu_oh || mpu_oh->_state == _HWMOD_STATE_UNKNOWN) + pr_err("omap_hwmod: %s: MPU initiator hwmod %s not yet registered\n", + __func__, MPU_INITIATOR_NAME); + else if (mpu_oh->_state == _HWMOD_STATE_REGISTERED && oh != mpu_oh) + omap_hwmod_setup_one(MPU_INITIATOR_NAME); +} + +/** + * omap_hwmod_setup_one - set up a single hwmod + * @oh_name: const char * name of the already-registered hwmod to set up + * + * Initialize and set up a single hwmod. Intended to be used for a + * small number of early devices, such as the timer IP blocks used for + * the scheduler clock. Must be called after omap2_clk_init(). + * Resolves the struct clk names to struct clk pointers for each + * registered omap_hwmod. Also calls _setup() on each hwmod. Returns + * -EINVAL upon error or 0 upon success. + */ +static int __init omap_hwmod_setup_one(const char *oh_name) +{ + struct omap_hwmod *oh; + + pr_debug("omap_hwmod: %s: %s\n", oh_name, __func__); + + oh = _lookup(oh_name); + if (!oh) { + WARN(1, "omap_hwmod: %s: hwmod not yet registered\n", oh_name); + return -EINVAL; + } + + _ensure_mpu_hwmod_is_setup(oh); + + _init(oh, NULL); + _setup(oh, NULL); + + return 0; +} + +static void omap_hwmod_check_one(struct device *dev, + const char *name, s8 v1, u8 v2) +{ + if (v1 < 0) + return; + + if (v1 != v2) + dev_warn(dev, "%s %d != %d\n", name, v1, v2); +} + +/** + * omap_hwmod_check_sysc - check sysc against platform sysc + * @dev: struct device + * @data: module data + * @sysc_fields: new sysc configuration + */ +static int omap_hwmod_check_sysc(struct device *dev, + const struct ti_sysc_module_data *data, + struct sysc_regbits *sysc_fields) +{ + const struct sysc_regbits *regbits = data->cap->regbits; + + omap_hwmod_check_one(dev, "dmadisable_shift", + regbits->dmadisable_shift, + sysc_fields->dmadisable_shift); + omap_hwmod_check_one(dev, "midle_shift", + regbits->midle_shift, + sysc_fields->midle_shift); + omap_hwmod_check_one(dev, "sidle_shift", + regbits->sidle_shift, + sysc_fields->sidle_shift); + omap_hwmod_check_one(dev, "clkact_shift", + regbits->clkact_shift, + sysc_fields->clkact_shift); + omap_hwmod_check_one(dev, "enwkup_shift", + regbits->enwkup_shift, + sysc_fields->enwkup_shift); + omap_hwmod_check_one(dev, "srst_shift", + regbits->srst_shift, + sysc_fields->srst_shift); + omap_hwmod_check_one(dev, "autoidle_shift", + regbits->autoidle_shift, + sysc_fields->autoidle_shift); + + return 0; +} + +/** + * omap_hwmod_init_regbits - init sysconfig specific register bits + * @dev: struct device + * @oh: module + * @data: module data + * @sysc_fields: new sysc configuration + */ +static int omap_hwmod_init_regbits(struct device *dev, struct omap_hwmod *oh, + const struct ti_sysc_module_data *data, + struct sysc_regbits **sysc_fields) +{ + switch (data->cap->type) { + case TI_SYSC_OMAP2: + case TI_SYSC_OMAP2_TIMER: + *sysc_fields = &omap_hwmod_sysc_type1; + break; + case TI_SYSC_OMAP3_SHAM: + *sysc_fields = &omap3_sham_sysc_fields; + break; + case TI_SYSC_OMAP3_AES: + *sysc_fields = &omap3xxx_aes_sysc_fields; + break; + case TI_SYSC_OMAP4: + case TI_SYSC_OMAP4_TIMER: + *sysc_fields = &omap_hwmod_sysc_type2; + break; + case TI_SYSC_OMAP4_SIMPLE: + *sysc_fields = &omap_hwmod_sysc_type3; + break; + case TI_SYSC_OMAP34XX_SR: + *sysc_fields = &omap34xx_sr_sysc_fields; + break; + case TI_SYSC_OMAP36XX_SR: + *sysc_fields = &omap36xx_sr_sysc_fields; + break; + case TI_SYSC_OMAP4_SR: + *sysc_fields = &omap36xx_sr_sysc_fields; + break; + case TI_SYSC_OMAP4_MCASP: + *sysc_fields = &omap_hwmod_sysc_type_mcasp; + break; + case TI_SYSC_OMAP4_USB_HOST_FS: + *sysc_fields = &omap_hwmod_sysc_type_usb_host_fs; + break; + default: + *sysc_fields = NULL; + if (!oh->class->sysc->sysc_fields) + return 0; + + dev_err(dev, "sysc_fields not found\n"); + + return -EINVAL; + } + + return omap_hwmod_check_sysc(dev, data, *sysc_fields); +} + +/** + * omap_hwmod_init_reg_offs - initialize sysconfig register offsets + * @dev: struct device + * @data: module data + * @rev_offs: revision register offset + * @sysc_offs: sysc register offset + * @syss_offs: syss register offset + */ +static int omap_hwmod_init_reg_offs(struct device *dev, + const struct ti_sysc_module_data *data, + s32 *rev_offs, s32 *sysc_offs, + s32 *syss_offs) +{ + *rev_offs = -ENODEV; + *sysc_offs = 0; + *syss_offs = 0; + + if (data->offsets[SYSC_REVISION] >= 0) + *rev_offs = data->offsets[SYSC_REVISION]; + + if (data->offsets[SYSC_SYSCONFIG] >= 0) + *sysc_offs = data->offsets[SYSC_SYSCONFIG]; + + if (data->offsets[SYSC_SYSSTATUS] >= 0) + *syss_offs = data->offsets[SYSC_SYSSTATUS]; + + return 0; +} + +/** + * omap_hwmod_init_sysc_flags - initialize sysconfig features + * @dev: struct device + * @data: module data + * @sysc_flags: module configuration + */ +static int omap_hwmod_init_sysc_flags(struct device *dev, + const struct ti_sysc_module_data *data, + u32 *sysc_flags) +{ + *sysc_flags = 0; + + switch (data->cap->type) { + case TI_SYSC_OMAP2: + case TI_SYSC_OMAP2_TIMER: + /* See SYSC_OMAP2_* in include/dt-bindings/bus/ti-sysc.h */ + if (data->cfg->sysc_val & SYSC_OMAP2_CLOCKACTIVITY) + *sysc_flags |= SYSC_HAS_CLOCKACTIVITY; + if (data->cfg->sysc_val & SYSC_OMAP2_EMUFREE) + *sysc_flags |= SYSC_HAS_EMUFREE; + if (data->cfg->sysc_val & SYSC_OMAP2_ENAWAKEUP) + *sysc_flags |= SYSC_HAS_ENAWAKEUP; + if (data->cfg->sysc_val & SYSC_OMAP2_SOFTRESET) + *sysc_flags |= SYSC_HAS_SOFTRESET; + if (data->cfg->sysc_val & SYSC_OMAP2_AUTOIDLE) + *sysc_flags |= SYSC_HAS_AUTOIDLE; + break; + case TI_SYSC_OMAP4: + case TI_SYSC_OMAP4_TIMER: + /* See SYSC_OMAP4_* in include/dt-bindings/bus/ti-sysc.h */ + if (data->cfg->sysc_val & SYSC_OMAP4_DMADISABLE) + *sysc_flags |= SYSC_HAS_DMADISABLE; + if (data->cfg->sysc_val & SYSC_OMAP4_FREEEMU) + *sysc_flags |= SYSC_HAS_EMUFREE; + if (data->cfg->sysc_val & SYSC_OMAP4_SOFTRESET) + *sysc_flags |= SYSC_HAS_SOFTRESET; + break; + case TI_SYSC_OMAP34XX_SR: + case TI_SYSC_OMAP36XX_SR: + /* See SYSC_OMAP3_SR_* in include/dt-bindings/bus/ti-sysc.h */ + if (data->cfg->sysc_val & SYSC_OMAP3_SR_ENAWAKEUP) + *sysc_flags |= SYSC_HAS_ENAWAKEUP; + break; + default: + if (data->cap->regbits->emufree_shift >= 0) + *sysc_flags |= SYSC_HAS_EMUFREE; + if (data->cap->regbits->enwkup_shift >= 0) + *sysc_flags |= SYSC_HAS_ENAWAKEUP; + if (data->cap->regbits->srst_shift >= 0) + *sysc_flags |= SYSC_HAS_SOFTRESET; + if (data->cap->regbits->autoidle_shift >= 0) + *sysc_flags |= SYSC_HAS_AUTOIDLE; + break; + } + + if (data->cap->regbits->midle_shift >= 0 && + data->cfg->midlemodes) + *sysc_flags |= SYSC_HAS_MIDLEMODE; + + if (data->cap->regbits->sidle_shift >= 0 && + data->cfg->sidlemodes) + *sysc_flags |= SYSC_HAS_SIDLEMODE; + + if (data->cfg->quirks & SYSC_QUIRK_UNCACHED) + *sysc_flags |= SYSC_NO_CACHE; + if (data->cfg->quirks & SYSC_QUIRK_RESET_STATUS) + *sysc_flags |= SYSC_HAS_RESET_STATUS; + + if (data->cfg->syss_mask & 1) + *sysc_flags |= SYSS_HAS_RESET_STATUS; + + return 0; +} + +/** + * omap_hwmod_init_idlemodes - initialize module idle modes + * @dev: struct device + * @data: module data + * @idlemodes: module supported idle modes + */ +static int omap_hwmod_init_idlemodes(struct device *dev, + const struct ti_sysc_module_data *data, + u32 *idlemodes) +{ + *idlemodes = 0; + + if (data->cfg->midlemodes & BIT(SYSC_IDLE_FORCE)) + *idlemodes |= MSTANDBY_FORCE; + if (data->cfg->midlemodes & BIT(SYSC_IDLE_NO)) + *idlemodes |= MSTANDBY_NO; + if (data->cfg->midlemodes & BIT(SYSC_IDLE_SMART)) + *idlemodes |= MSTANDBY_SMART; + if (data->cfg->midlemodes & BIT(SYSC_IDLE_SMART_WKUP)) + *idlemodes |= MSTANDBY_SMART_WKUP; + + if (data->cfg->sidlemodes & BIT(SYSC_IDLE_FORCE)) + *idlemodes |= SIDLE_FORCE; + if (data->cfg->sidlemodes & BIT(SYSC_IDLE_NO)) + *idlemodes |= SIDLE_NO; + if (data->cfg->sidlemodes & BIT(SYSC_IDLE_SMART)) + *idlemodes |= SIDLE_SMART; + if (data->cfg->sidlemodes & BIT(SYSC_IDLE_SMART_WKUP)) + *idlemodes |= SIDLE_SMART_WKUP; + + return 0; +} + +/** + * omap_hwmod_check_module - check new module against platform data + * @dev: struct device + * @oh: module + * @data: new module data + * @sysc_fields: sysc register bits + * @rev_offs: revision register offset + * @sysc_offs: sysconfig register offset + * @syss_offs: sysstatus register offset + * @sysc_flags: sysc specific flags + * @idlemodes: sysc supported idlemodes + */ +static int omap_hwmod_check_module(struct device *dev, + struct omap_hwmod *oh, + const struct ti_sysc_module_data *data, + struct sysc_regbits *sysc_fields, + s32 rev_offs, s32 sysc_offs, + s32 syss_offs, u32 sysc_flags, + u32 idlemodes) +{ + if (!oh->class->sysc) + return -ENODEV; + + if (oh->class->sysc->sysc_fields && + sysc_fields != oh->class->sysc->sysc_fields) + dev_warn(dev, "sysc_fields mismatch\n"); + + if (rev_offs != oh->class->sysc->rev_offs) + dev_warn(dev, "rev_offs %08x != %08x\n", rev_offs, + oh->class->sysc->rev_offs); + if (sysc_offs != oh->class->sysc->sysc_offs) + dev_warn(dev, "sysc_offs %08x != %08x\n", sysc_offs, + oh->class->sysc->sysc_offs); + if (syss_offs != oh->class->sysc->syss_offs) + dev_warn(dev, "syss_offs %08x != %08x\n", syss_offs, + oh->class->sysc->syss_offs); + + if (sysc_flags != oh->class->sysc->sysc_flags) + dev_warn(dev, "sysc_flags %08x != %08x\n", sysc_flags, + oh->class->sysc->sysc_flags); + + if (idlemodes != oh->class->sysc->idlemodes) + dev_warn(dev, "idlemodes %08x != %08x\n", idlemodes, + oh->class->sysc->idlemodes); + + if (data->cfg->srst_udelay != oh->class->sysc->srst_udelay) + dev_warn(dev, "srst_udelay %i != %i\n", + data->cfg->srst_udelay, + oh->class->sysc->srst_udelay); + + return 0; +} + +/** + * omap_hwmod_allocate_module - allocate new module + * @dev: struct device + * @oh: module + * @data: module data + * @sysc_fields: sysc register bits + * @clkdm: clockdomain + * @rev_offs: revision register offset + * @sysc_offs: sysconfig register offset + * @syss_offs: sysstatus register offset + * @sysc_flags: sysc specific flags + * @idlemodes: sysc supported idlemodes + * + * Note that the allocations here cannot use devm as ti-sysc can rebind. + */ +static int omap_hwmod_allocate_module(struct device *dev, struct omap_hwmod *oh, + const struct ti_sysc_module_data *data, + struct sysc_regbits *sysc_fields, + struct clockdomain *clkdm, + s32 rev_offs, s32 sysc_offs, + s32 syss_offs, u32 sysc_flags, + u32 idlemodes) +{ + struct omap_hwmod_class_sysconfig *sysc; + struct omap_hwmod_class *class = NULL; + struct omap_hwmod_ocp_if *oi = NULL; + void __iomem *regs = NULL; + unsigned long flags; + + sysc = kzalloc_obj(*sysc); + if (!sysc) + return -ENOMEM; + + sysc->sysc_fields = sysc_fields; + sysc->rev_offs = rev_offs; + sysc->sysc_offs = sysc_offs; + sysc->syss_offs = syss_offs; + sysc->sysc_flags = sysc_flags; + sysc->idlemodes = idlemodes; + sysc->srst_udelay = data->cfg->srst_udelay; + + if (!oh->_mpu_rt_va) { + regs = ioremap(data->module_pa, + data->module_size); + if (!regs) + goto out_free_sysc; + } + + /* + * We may need a new oh->class as the other devices in the same class + * may not yet have ioremapped their registers. + */ + if (oh->class->name && strcmp(oh->class->name, data->name)) { + class = kmemdup(oh->class, sizeof(*oh->class), GFP_KERNEL); + if (!class) + goto out_unmap; + } + + if (list_empty(&oh->slave_ports)) { + oi = kzalloc_obj(*oi); + if (!oi) + goto out_free_class; + + /* + * Note that we assume interconnect interface clocks will be + * managed by the interconnect driver for OCPIF_SWSUP_IDLE case + * on omap24xx and omap3. + */ + oi->slave = oh; + oi->user = OCP_USER_MPU | OCP_USER_SDMA; + } + + spin_lock_irqsave(&oh->_lock, flags); + if (regs) + oh->_mpu_rt_va = regs; + if (class) + oh->class = class; + oh->class->sysc = sysc; + if (oi) + _add_link(oi); + if (clkdm) + oh->clkdm = clkdm; + oh->_state = _HWMOD_STATE_INITIALIZED; + oh->_postsetup_state = _HWMOD_STATE_DEFAULT; + _setup(oh, NULL); + spin_unlock_irqrestore(&oh->_lock, flags); + + return 0; + +out_free_class: + kfree(class); +out_unmap: + iounmap(regs); +out_free_sysc: + kfree(sysc); + return -ENOMEM; +} + +static const struct omap_hwmod_reset omap24xx_reset_quirks[] = { + { .match = "msdi", .len = 4, .reset = omap_msdi_reset, }, +}; + +static const struct omap_hwmod_reset omap_reset_quirks[] = { + { .match = "dss_core", .len = 8, .reset = omap_dss_reset, }, + { .match = "hdq1w", .len = 5, .reset = omap_hdq1w_reset, }, + { .match = "i2c", .len = 3, .reset = omap_i2c_reset, }, + { .match = "wd_timer", .len = 8, .reset = omap2_wd_timer_reset, }, +}; + +static void +omap_hwmod_init_reset_quirk(struct device *dev, struct omap_hwmod *oh, + const struct ti_sysc_module_data *data, + const struct omap_hwmod_reset *quirks, + int quirks_sz) +{ + const struct omap_hwmod_reset *quirk; + int i; + + for (i = 0; i < quirks_sz; i++) { + quirk = &quirks[i]; + if (!strncmp(data->name, quirk->match, quirk->len)) { + oh->class->reset = quirk->reset; + + return; + } + } +} + +static void +omap_hwmod_init_reset_quirks(struct device *dev, struct omap_hwmod *oh, + const struct ti_sysc_module_data *data) +{ + if (soc_is_omap24xx()) + omap_hwmod_init_reset_quirk(dev, oh, data, + omap24xx_reset_quirks, + ARRAY_SIZE(omap24xx_reset_quirks)); + + omap_hwmod_init_reset_quirk(dev, oh, data, omap_reset_quirks, + ARRAY_SIZE(omap_reset_quirks)); +} + +/** + * omap_hwmod_init_module - initialize new module + * @dev: struct device + * @data: module data + * @cookie: cookie for the caller to use for later calls + */ +int omap_hwmod_init_module(struct device *dev, + const struct ti_sysc_module_data *data, + struct ti_sysc_cookie *cookie) +{ + struct omap_hwmod *oh; + struct sysc_regbits *sysc_fields; + s32 rev_offs, sysc_offs, syss_offs; + u32 sysc_flags, idlemodes; + int error; + + if (!dev || !data || !data->name || !cookie) + return -EINVAL; + + oh = _lookup(data->name); + if (!oh) { + oh = kzalloc_obj(*oh); + if (!oh) + return -ENOMEM; + + oh->name = data->name; + oh->_state = _HWMOD_STATE_UNKNOWN; + lockdep_register_key(&oh->hwmod_key); + + /* Unused, can be handled by PRM driver handling resets */ + oh->prcm.omap4.flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT; + + oh->class = kzalloc_obj(*oh->class); + if (!oh->class) { + kfree(oh); + return -ENOMEM; + } + + omap_hwmod_init_reset_quirks(dev, oh, data); + + oh->class->name = data->name; + mutex_lock(&list_lock); + error = _register(oh); + mutex_unlock(&list_lock); + } + + cookie->data = oh; + + error = omap_hwmod_init_regbits(dev, oh, data, &sysc_fields); + if (error) + return error; + + error = omap_hwmod_init_reg_offs(dev, data, &rev_offs, + &sysc_offs, &syss_offs); + if (error) + return error; + + error = omap_hwmod_init_sysc_flags(dev, data, &sysc_flags); + if (error) + return error; + + error = omap_hwmod_init_idlemodes(dev, data, &idlemodes); + if (error) + return error; + + if (data->cfg->quirks & SYSC_QUIRK_NO_IDLE) + oh->flags |= HWMOD_NO_IDLE; + if (data->cfg->quirks & SYSC_QUIRK_NO_IDLE_ON_INIT) + oh->flags |= HWMOD_INIT_NO_IDLE; + if (data->cfg->quirks & SYSC_QUIRK_NO_RESET_ON_INIT) + oh->flags |= HWMOD_INIT_NO_RESET; + if (data->cfg->quirks & SYSC_QUIRK_USE_CLOCKACT) + oh->flags |= HWMOD_SET_DEFAULT_CLOCKACT; + if (data->cfg->quirks & SYSC_QUIRK_SWSUP_SIDLE) + oh->flags |= HWMOD_SWSUP_SIDLE; + if (data->cfg->quirks & SYSC_QUIRK_SWSUP_SIDLE_ACT) + oh->flags |= HWMOD_SWSUP_SIDLE_ACT; + if (data->cfg->quirks & SYSC_QUIRK_SWSUP_MSTANDBY) + oh->flags |= HWMOD_SWSUP_MSTANDBY; + if (data->cfg->quirks & SYSC_QUIRK_CLKDM_NOAUTO) + oh->flags |= HWMOD_CLKDM_NOAUTO; + + error = omap_hwmod_check_module(dev, oh, data, sysc_fields, + rev_offs, sysc_offs, syss_offs, + sysc_flags, idlemodes); + if (!error) + return error; + + return omap_hwmod_allocate_module(dev, oh, data, sysc_fields, + cookie->clkdm, rev_offs, + sysc_offs, syss_offs, + sysc_flags, idlemodes); +} + +/** + * omap_hwmod_setup_earlycon_flags - set up flags for early console + * + * Enable DEBUG_OMAPUART_FLAGS for uart hwmod that is being used as + * early concole so that hwmod core doesn't reset and keep it in idle + * that specific uart. + */ +#ifdef CONFIG_SERIAL_EARLYCON +static void __init omap_hwmod_setup_earlycon_flags(void) +{ + struct device_node *np, *chosen; + struct omap_hwmod *oh; + const char *uart; + + chosen = of_find_node_by_path("/chosen"); + if (chosen) { + uart = of_get_property(chosen, "stdout-path", NULL); + if (uart) { + np = of_find_node_by_path(uart); + if (np) { + uart = of_get_property(np, "ti,hwmods", NULL); + oh = omap_hwmod_lookup(uart); + if (!oh) { + uart = of_get_property(np->parent, + "ti,hwmods", + NULL); + oh = omap_hwmod_lookup(uart); + } + if (oh) + oh->flags |= DEBUG_OMAPUART_FLAGS; + } + of_node_put(np); + } + } + of_node_put(chosen); +} +#endif + +/** + * omap_hwmod_setup_all - set up all registered IP blocks + * + * Initialize and set up all IP blocks registered with the hwmod code. + * Must be called after omap2_clk_init(). Resolves the struct clk + * names to struct clk pointers for each registered omap_hwmod. Also + * calls _setup() on each hwmod. Returns 0 upon success. + */ +static int __init omap_hwmod_setup_all(void) +{ + if (!inited) + return 0; + + _ensure_mpu_hwmod_is_setup(NULL); + + omap_hwmod_for_each(_init, NULL); +#ifdef CONFIG_SERIAL_EARLYCON + omap_hwmod_setup_earlycon_flags(); +#endif + omap_hwmod_for_each(_setup, NULL); + + return 0; +} +omap_postcore_initcall(omap_hwmod_setup_all); + +/** + * omap_hwmod_enable - enable an omap_hwmod + * @oh: struct omap_hwmod * + * + * Enable an omap_hwmod @oh. Intended to be called by omap_device_enable(). + * Returns -EINVAL on error or passes along the return value from _enable(). + */ +int omap_hwmod_enable(struct omap_hwmod *oh) +{ + int r; + unsigned long flags; + + if (!oh) + return -EINVAL; + + spin_lock_irqsave(&oh->_lock, flags); + r = _enable(oh); + spin_unlock_irqrestore(&oh->_lock, flags); + + return r; +} + +/** + * omap_hwmod_idle - idle an omap_hwmod + * @oh: struct omap_hwmod * + * + * Idle an omap_hwmod @oh. Intended to be called by omap_device_idle(). + * Returns -EINVAL on error or passes along the return value from _idle(). + */ +int omap_hwmod_idle(struct omap_hwmod *oh) +{ + int r; + unsigned long flags; + + if (!oh) + return -EINVAL; + + spin_lock_irqsave(&oh->_lock, flags); + r = _idle(oh); + spin_unlock_irqrestore(&oh->_lock, flags); + + return r; +} + +/** + * omap_hwmod_shutdown - shutdown an omap_hwmod + * @oh: struct omap_hwmod * + * + * Shutdown an omap_hwmod @oh. Intended to be called by + * omap_device_shutdown(). Returns -EINVAL on error or passes along + * the return value from _shutdown(). + */ +int omap_hwmod_shutdown(struct omap_hwmod *oh) +{ + int r; + unsigned long flags; + + if (!oh) + return -EINVAL; + + spin_lock_irqsave(&oh->_lock, flags); + r = _shutdown(oh); + spin_unlock_irqrestore(&oh->_lock, flags); + + return r; +} + +/* + * IP block data retrieval functions + */ + +/** + * omap_hwmod_get_mpu_rt_va - return the module's base address (for the MPU) + * @oh: struct omap_hwmod * + * + * Returns the virtual address corresponding to the beginning of the + * module's register target, in the address range that is intended to + * be used by the MPU. Returns the virtual address upon success or NULL + * upon error. + */ +void __iomem *omap_hwmod_get_mpu_rt_va(struct omap_hwmod *oh) +{ + if (!oh) + return NULL; + + if (oh->_int_flags & _HWMOD_NO_MPU_PORT) + return NULL; + + if (oh->_state == _HWMOD_STATE_UNKNOWN) + return NULL; + + return oh->_mpu_rt_va; +} + +/* + * XXX what about functions for drivers to save/restore ocp_sysconfig + * for context save/restore operations? + */ + +/** + * omap_hwmod_assert_hardreset - assert the HW reset line of submodules + * contained in the hwmod module. + * @oh: struct omap_hwmod * + * @name: name of the reset line to lookup and assert + * + * Some IP like dsp, ipu or iva contain processor that require + * an HW reset line to be assert / deassert in order to enable fully + * the IP. Returns -EINVAL if @oh is null or if the operation is not + * yet supported on this OMAP; otherwise, passes along the return value + * from _assert_hardreset(). + */ +int omap_hwmod_assert_hardreset(struct omap_hwmod *oh, const char *name) +{ + int ret; + unsigned long flags; + + if (!oh) + return -EINVAL; + + spin_lock_irqsave(&oh->_lock, flags); + ret = _assert_hardreset(oh, name); + spin_unlock_irqrestore(&oh->_lock, flags); + + return ret; +} + +/** + * omap_hwmod_deassert_hardreset - deassert the HW reset line of submodules + * contained in the hwmod module. + * @oh: struct omap_hwmod * + * @name: name of the reset line to look up and deassert + * + * Some IP like dsp, ipu or iva contain processor that require + * an HW reset line to be assert / deassert in order to enable fully + * the IP. Returns -EINVAL if @oh is null or if the operation is not + * yet supported on this OMAP; otherwise, passes along the return value + * from _deassert_hardreset(). + */ +int omap_hwmod_deassert_hardreset(struct omap_hwmod *oh, const char *name) +{ + int ret; + unsigned long flags; + + if (!oh) + return -EINVAL; + + spin_lock_irqsave(&oh->_lock, flags); + ret = _deassert_hardreset(oh, name); + spin_unlock_irqrestore(&oh->_lock, flags); + + return ret; +} + +/** + * omap_hwmod_for_each_by_class - call @fn for each hwmod of class @classname + * @classname: struct omap_hwmod_class name to search for + * @fn: callback function pointer to call for each hwmod in class @classname + * @user: arbitrary context data to pass to the callback function + * + * For each omap_hwmod of class @classname, call @fn. + * If the callback function returns something other than + * zero, the iterator is terminated, and the callback function's return + * value is passed back to the caller. Returns 0 upon success, -EINVAL + * if @classname or @fn are NULL, or passes back the error code from @fn. + */ +int omap_hwmod_for_each_by_class(const char *classname, + int (*fn)(struct omap_hwmod *oh, + void *user), + void *user) +{ + struct omap_hwmod *temp_oh; + int ret = 0; + + if (!classname || !fn) + return -EINVAL; + + pr_debug("omap_hwmod: %s: looking for modules of class %s\n", + __func__, classname); + + list_for_each_entry(temp_oh, &omap_hwmod_list, node) { + if (!strcmp(temp_oh->class->name, classname)) { + pr_debug("omap_hwmod: %s: %s: calling callback fn\n", + __func__, temp_oh->name); + ret = (*fn)(temp_oh, user); + if (ret) + break; + } + } + + if (ret) + pr_debug("omap_hwmod: %s: iterator terminated early: %d\n", + __func__, ret); + + return ret; +} + +/** + * omap_hwmod_set_postsetup_state - set the post-_setup() state for this hwmod + * @oh: struct omap_hwmod * + * @state: state that _setup() should leave the hwmod in + * + * Sets the hwmod state that @oh will enter at the end of _setup() + * (called by omap_hwmod_setup_*()). See also the documentation + * for _setup_postsetup(), above. Returns 0 upon success or + * -EINVAL if there is a problem with the arguments or if the hwmod is + * in the wrong state. + */ +int omap_hwmod_set_postsetup_state(struct omap_hwmod *oh, u8 state) +{ + int ret; + unsigned long flags; + + if (!oh) + return -EINVAL; + + if (state != _HWMOD_STATE_DISABLED && + state != _HWMOD_STATE_ENABLED && + state != _HWMOD_STATE_IDLE) + return -EINVAL; + + spin_lock_irqsave(&oh->_lock, flags); + + if (oh->_state != _HWMOD_STATE_REGISTERED) { + ret = -EINVAL; + goto ohsps_unlock; + } + + oh->_postsetup_state = state; + ret = 0; + +ohsps_unlock: + spin_unlock_irqrestore(&oh->_lock, flags); + + return ret; +} + +/** + * omap_hwmod_init - initialize the hwmod code + * + * Sets up some function pointers needed by the hwmod code to operate on the + * currently-booted SoC. Intended to be called once during kernel init + * before any hwmods are registered. No return value. + */ +void __init omap_hwmod_init(void) +{ + if (cpu_is_omap24xx()) { + soc_ops.wait_target_ready = _omap2xxx_3xxx_wait_target_ready; + soc_ops.assert_hardreset = _omap2_assert_hardreset; + soc_ops.deassert_hardreset = _omap2_deassert_hardreset; + soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted; + } else if (cpu_is_omap34xx()) { + soc_ops.wait_target_ready = _omap2xxx_3xxx_wait_target_ready; + soc_ops.assert_hardreset = _omap2_assert_hardreset; + soc_ops.deassert_hardreset = _omap2_deassert_hardreset; + soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted; + soc_ops.init_clkdm = _init_clkdm; + } else if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx()) { + soc_ops.enable_module = _omap4_enable_module; + soc_ops.disable_module = _omap4_disable_module; + soc_ops.wait_target_ready = _omap4_wait_target_ready; + soc_ops.assert_hardreset = _omap4_assert_hardreset; + soc_ops.deassert_hardreset = _omap4_deassert_hardreset; + soc_ops.is_hardreset_asserted = _omap4_is_hardreset_asserted; + soc_ops.init_clkdm = _init_clkdm; + soc_ops.update_context_lost = _omap4_update_context_lost; + soc_ops.get_context_lost = _omap4_get_context_lost; + soc_ops.disable_direct_prcm = _omap4_disable_direct_prcm; + soc_ops.xlate_clkctrl = _omap4_xlate_clkctrl; + } else if (cpu_is_ti814x() || cpu_is_ti816x() || soc_is_am33xx() || + soc_is_am43xx()) { + soc_ops.enable_module = _omap4_enable_module; + soc_ops.disable_module = _omap4_disable_module; + soc_ops.wait_target_ready = _omap4_wait_target_ready; + soc_ops.assert_hardreset = _omap4_assert_hardreset; + soc_ops.deassert_hardreset = _am33xx_deassert_hardreset; + soc_ops.is_hardreset_asserted = _omap4_is_hardreset_asserted; + soc_ops.init_clkdm = _init_clkdm; + soc_ops.disable_direct_prcm = _omap4_disable_direct_prcm; + soc_ops.xlate_clkctrl = _omap4_xlate_clkctrl; + } else { + WARN(1, "omap_hwmod: unknown SoC type\n"); + } + + _init_clkctrl_providers(); + + inited = true; +} diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h new file mode 100644 index 000000000..dcab7a01c --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod.h @@ -0,0 +1,674 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * omap_hwmod macros, structures + * + * Copyright (C) 2009-2011 Nokia Corporation + * Copyright (C) 2011-2012 Texas Instruments, Inc. + * Paul Walmsley + * + * Created in collaboration with (alphabetical order): Benoît Cousson, + * Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari + * Poussa, Anand Sawant, Santosh Shilimkar, Richard Woodruff + * + * These headers and macros are used to define OMAP on-chip module + * data and their integration with other OMAP modules and Linux. + * Copious documentation and references can also be found in the + * omap_hwmod code, in arch/arm/mach-omap2/omap_hwmod.c (as of this + * writing). + * + * To do: + * - add interconnect error log structures + * - init_conn_id_bit (CONNID_BIT_VECTOR) + * - implement default hwmod SMS/SDRC flags? + * - move Linux-specific data ("non-ROM data") out + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/ioport.h> +#include <linux/spinlock.h> + +struct omap_device; + +extern struct sysc_regbits omap_hwmod_sysc_type1; +extern struct sysc_regbits omap_hwmod_sysc_type2; +extern struct sysc_regbits omap_hwmod_sysc_type3; +extern struct sysc_regbits omap34xx_sr_sysc_fields; +extern struct sysc_regbits omap36xx_sr_sysc_fields; +extern struct sysc_regbits omap3_sham_sysc_fields; +extern struct sysc_regbits omap3xxx_aes_sysc_fields; +extern struct sysc_regbits omap_hwmod_sysc_type_mcasp; +extern struct sysc_regbits omap_hwmod_sysc_type_usb_host_fs; + +/* + * OCP SYSCONFIG bit shifts/masks TYPE1. These are for IPs compliant + * with the original PRCM protocol defined for OMAP2420 + */ +#define SYSC_TYPE1_MIDLEMODE_SHIFT 12 +#define SYSC_TYPE1_MIDLEMODE_MASK (0x3 << SYSC_TYPE1_MIDLEMODE_SHIFT) +#define SYSC_TYPE1_CLOCKACTIVITY_SHIFT 8 +#define SYSC_TYPE1_CLOCKACTIVITY_MASK (0x3 << SYSC_TYPE1_CLOCKACTIVITY_SHIFT) +#define SYSC_TYPE1_SIDLEMODE_SHIFT 3 +#define SYSC_TYPE1_SIDLEMODE_MASK (0x3 << SYSC_TYPE1_SIDLEMODE_SHIFT) +#define SYSC_TYPE1_ENAWAKEUP_SHIFT 2 +#define SYSC_TYPE1_ENAWAKEUP_MASK (1 << SYSC_TYPE1_ENAWAKEUP_SHIFT) +#define SYSC_TYPE1_SOFTRESET_SHIFT 1 +#define SYSC_TYPE1_SOFTRESET_MASK (1 << SYSC_TYPE1_SOFTRESET_SHIFT) +#define SYSC_TYPE1_AUTOIDLE_SHIFT 0 +#define SYSC_TYPE1_AUTOIDLE_MASK (1 << SYSC_TYPE1_AUTOIDLE_SHIFT) + +/* + * OCP SYSCONFIG bit shifts/masks TYPE2. These are for IPs compliant + * with the new PRCM protocol defined for new OMAP4 IPs. + */ +#define SYSC_TYPE2_SOFTRESET_SHIFT 0 +#define SYSC_TYPE2_SOFTRESET_MASK (1 << SYSC_TYPE2_SOFTRESET_SHIFT) +#define SYSC_TYPE2_SIDLEMODE_SHIFT 2 +#define SYSC_TYPE2_SIDLEMODE_MASK (0x3 << SYSC_TYPE2_SIDLEMODE_SHIFT) +#define SYSC_TYPE2_MIDLEMODE_SHIFT 4 +#define SYSC_TYPE2_MIDLEMODE_MASK (0x3 << SYSC_TYPE2_MIDLEMODE_SHIFT) +#define SYSC_TYPE2_DMADISABLE_SHIFT 16 +#define SYSC_TYPE2_DMADISABLE_MASK (0x1 << SYSC_TYPE2_DMADISABLE_SHIFT) + +/* + * OCP SYSCONFIG bit shifts/masks TYPE3. + * This is applicable for some IPs present in AM33XX + */ +#define SYSC_TYPE3_SIDLEMODE_SHIFT 0 +#define SYSC_TYPE3_SIDLEMODE_MASK (0x3 << SYSC_TYPE3_SIDLEMODE_SHIFT) +#define SYSC_TYPE3_MIDLEMODE_SHIFT 2 +#define SYSC_TYPE3_MIDLEMODE_MASK (0x3 << SYSC_TYPE3_MIDLEMODE_SHIFT) + +/* OCP SYSSTATUS bit shifts/masks */ +#define SYSS_RESETDONE_SHIFT 0 +#define SYSS_RESETDONE_MASK (1 << SYSS_RESETDONE_SHIFT) + +/* Master standby/slave idle mode flags */ +#define HWMOD_IDLEMODE_FORCE (1 << 0) +#define HWMOD_IDLEMODE_NO (1 << 1) +#define HWMOD_IDLEMODE_SMART (1 << 2) +#define HWMOD_IDLEMODE_SMART_WKUP (1 << 3) + +/* modulemode control type (SW or HW) */ +#define MODULEMODE_HWCTRL 1 +#define MODULEMODE_SWCTRL 2 + +#define DEBUG_OMAP2UART1_FLAGS 0 +#define DEBUG_OMAP2UART2_FLAGS 0 +#define DEBUG_OMAP2UART3_FLAGS 0 +#define DEBUG_OMAP3UART3_FLAGS 0 +#define DEBUG_OMAP3UART4_FLAGS 0 +#define DEBUG_OMAP4UART3_FLAGS 0 +#define DEBUG_OMAP4UART4_FLAGS 0 +#define DEBUG_TI81XXUART1_FLAGS 0 +#define DEBUG_TI81XXUART2_FLAGS 0 +#define DEBUG_TI81XXUART3_FLAGS 0 +#define DEBUG_AM33XXUART1_FLAGS 0 + +#define DEBUG_OMAPUART_FLAGS (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET) + +#ifdef CONFIG_OMAP_GPMC_DEBUG +#define DEBUG_OMAP_GPMC_HWMOD_FLAGS HWMOD_INIT_NO_RESET +#else +#define DEBUG_OMAP_GPMC_HWMOD_FLAGS 0 +#endif + +#if defined(CONFIG_DEBUG_OMAP2UART1) +#undef DEBUG_OMAP2UART1_FLAGS +#define DEBUG_OMAP2UART1_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_OMAP2UART2) +#undef DEBUG_OMAP2UART2_FLAGS +#define DEBUG_OMAP2UART2_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_OMAP2UART3) +#undef DEBUG_OMAP2UART3_FLAGS +#define DEBUG_OMAP2UART3_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_OMAP3UART3) +#undef DEBUG_OMAP3UART3_FLAGS +#define DEBUG_OMAP3UART3_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_OMAP3UART4) +#undef DEBUG_OMAP3UART4_FLAGS +#define DEBUG_OMAP3UART4_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_OMAP4UART3) +#undef DEBUG_OMAP4UART3_FLAGS +#define DEBUG_OMAP4UART3_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_OMAP4UART4) +#undef DEBUG_OMAP4UART4_FLAGS +#define DEBUG_OMAP4UART4_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_TI81XXUART1) +#undef DEBUG_TI81XXUART1_FLAGS +#define DEBUG_TI81XXUART1_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_TI81XXUART2) +#undef DEBUG_TI81XXUART2_FLAGS +#define DEBUG_TI81XXUART2_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_TI81XXUART3) +#undef DEBUG_TI81XXUART3_FLAGS +#define DEBUG_TI81XXUART3_FLAGS DEBUG_OMAPUART_FLAGS +#elif defined(CONFIG_DEBUG_AM33XXUART1) +#undef DEBUG_AM33XXUART1_FLAGS +#define DEBUG_AM33XXUART1_FLAGS DEBUG_OMAPUART_FLAGS +#endif + +/** + * struct omap_hwmod_rst_info - IPs reset lines use by hwmod + * @name: name of the reset line (module local name) + * @rst_shift: Offset of the reset bit + * @st_shift: Offset of the reset status bit (OMAP2/3 only) + * + * @name should be something short, e.g., "cpu0" or "rst". It is defined + * locally to the hwmod. + */ +struct omap_hwmod_rst_info { + const char *name; + u8 rst_shift; + u8 st_shift; +}; + +/** + * struct omap_hwmod_opt_clk - optional clocks used by this hwmod + * @role: "sys", "32k", "tv", etc -- for use in clk_get() + * @clk: opt clock: OMAP clock name + * @_clk: pointer to the struct clk (filled in at runtime) + * + * The module's interface clock and main functional clock should not + * be added as optional clocks. + */ +struct omap_hwmod_opt_clk { + const char *role; + const char *clk; + struct clk *_clk; +}; + + +/* omap_hwmod_omap2_firewall.flags bits */ +#define OMAP_FIREWALL_L3 (1 << 0) +#define OMAP_FIREWALL_L4 (1 << 1) + +/** + * struct omap_hwmod_omap2_firewall - OMAP2/3 device firewall data + * @l3_perm_bit: bit shift for L3_PM_*_PERMISSION_* + * @l4_fw_region: L4 firewall region ID + * @l4_prot_group: L4 protection group ID + * @flags: (see omap_hwmod_omap2_firewall.flags macros above) + */ +struct omap_hwmod_omap2_firewall { + u8 l3_perm_bit; + u8 l4_fw_region; + u8 l4_prot_group; + u8 flags; +}; + +/* + * omap_hwmod_ocp_if.user bits: these indicate the initiators that use this + * interface to interact with the hwmod. Used to add sleep dependencies + * when the module is enabled or disabled. + */ +#define OCP_USER_MPU (1 << 0) +#define OCP_USER_SDMA (1 << 1) +#define OCP_USER_DSP (1 << 2) +#define OCP_USER_IVA (1 << 3) + +/* omap_hwmod_ocp_if.flags bits */ +#define OCPIF_SWSUP_IDLE (1 << 0) +#define OCPIF_CAN_BURST (1 << 1) + +/* omap_hwmod_ocp_if._int_flags possibilities */ +#define _OCPIF_INT_FLAGS_REGISTERED (1 << 0) + + +/** + * struct omap_hwmod_ocp_if - OCP interface data + * @master: struct omap_hwmod that initiates OCP transactions on this link + * @slave: struct omap_hwmod that responds to OCP transactions on this link + * @addr: address space associated with this link + * @clk: interface clock: OMAP clock name + * @_clk: pointer to the interface struct clk (filled in at runtime) + * @fw: interface firewall data + * @width: OCP data width + * @user: initiators using this interface (see OCP_USER_* macros above) + * @flags: OCP interface flags (see OCPIF_* macros above) + * @_int_flags: internal flags (see _OCPIF_INT_FLAGS* macros above) + * + * It may also be useful to add a tag_cnt field for OCP2.x devices. + * + * Parameter names beginning with an underscore are managed internally by + * the omap_hwmod code and should not be set during initialization. + */ +struct omap_hwmod_ocp_if { + struct omap_hwmod *master; + struct omap_hwmod *slave; + struct omap_hwmod_addr_space *addr; + const char *clk; + struct clk *_clk; + struct list_head node; + union { + struct omap_hwmod_omap2_firewall omap2; + } fw; + u8 width; + u8 user; + u8 flags; + u8 _int_flags; +}; + + +/* Macros for use in struct omap_hwmod_sysconfig */ + +/* Flags for use in omap_hwmod_sysconfig.idlemodes */ +#define MASTER_STANDBY_SHIFT 4 +#define SLAVE_IDLE_SHIFT 0 +#define SIDLE_FORCE (HWMOD_IDLEMODE_FORCE << SLAVE_IDLE_SHIFT) +#define SIDLE_NO (HWMOD_IDLEMODE_NO << SLAVE_IDLE_SHIFT) +#define SIDLE_SMART (HWMOD_IDLEMODE_SMART << SLAVE_IDLE_SHIFT) +#define SIDLE_SMART_WKUP (HWMOD_IDLEMODE_SMART_WKUP << SLAVE_IDLE_SHIFT) +#define MSTANDBY_FORCE (HWMOD_IDLEMODE_FORCE << MASTER_STANDBY_SHIFT) +#define MSTANDBY_NO (HWMOD_IDLEMODE_NO << MASTER_STANDBY_SHIFT) +#define MSTANDBY_SMART (HWMOD_IDLEMODE_SMART << MASTER_STANDBY_SHIFT) +#define MSTANDBY_SMART_WKUP (HWMOD_IDLEMODE_SMART_WKUP << MASTER_STANDBY_SHIFT) + +/* omap_hwmod_sysconfig.sysc_flags capability flags */ +#define SYSC_HAS_AUTOIDLE (1 << 0) +#define SYSC_HAS_SOFTRESET (1 << 1) +#define SYSC_HAS_ENAWAKEUP (1 << 2) +#define SYSC_HAS_EMUFREE (1 << 3) +#define SYSC_HAS_CLOCKACTIVITY (1 << 4) +#define SYSC_HAS_SIDLEMODE (1 << 5) +#define SYSC_HAS_MIDLEMODE (1 << 6) +#define SYSS_HAS_RESET_STATUS (1 << 7) +#define SYSC_NO_CACHE (1 << 8) /* XXX SW flag, belongs elsewhere */ +#define SYSC_HAS_RESET_STATUS (1 << 9) +#define SYSC_HAS_DMADISABLE (1 << 10) + +/* omap_hwmod_sysconfig.clockact flags */ +#define CLOCKACT_TEST_BOTH 0x0 +#define CLOCKACT_TEST_MAIN 0x1 +#define CLOCKACT_TEST_ICLK 0x2 +#define CLOCKACT_TEST_NONE 0x3 + +/** + * struct omap_hwmod_class_sysconfig - hwmod class OCP_SYS* data + * @rev_offs: IP block revision register offset (from module base addr) + * @sysc_offs: OCP_SYSCONFIG register offset (from module base addr) + * @syss_offs: OCP_SYSSTATUS register offset (from module base addr) + * @srst_udelay: Delay needed after doing a softreset in usecs + * @idlemodes: One or more of {SIDLE,MSTANDBY}_{OFF,FORCE,SMART} + * @sysc_flags: SYS{C,S}_HAS* flags indicating SYSCONFIG bits supported + * @clockact: the default value of the module CLOCKACTIVITY bits + * + * @clockact describes to the module which clocks are likely to be + * disabled when the PRCM issues its idle request to the module. Some + * modules have separate clockdomains for the interface clock and main + * functional clock, and can check whether they should acknowledge the + * idle request based on the internal module functionality that has + * been associated with the clocks marked in @clockact. This field is + * only used if HWMOD_SET_DEFAULT_CLOCKACT is set (see below) + * + * @sysc_fields: structure containing the offset positions of various bits in + * SYSCONFIG register. This can be populated using omap_hwmod_sysc_type1 or + * omap_hwmod_sysc_type2 defined in omap_hwmod_common_data.c depending on + * whether the device ip is compliant with the original PRCM protocol + * defined for OMAP2420 or the new PRCM protocol for new OMAP4 IPs. + * If the device follows a different scheme for the sysconfig register , + * then this field has to be populated with the correct offset structure. + */ +struct omap_hwmod_class_sysconfig { + s32 rev_offs; + s32 sysc_offs; + s32 syss_offs; + u16 sysc_flags; + struct sysc_regbits *sysc_fields; + u8 srst_udelay; + u8 idlemodes; +}; + +/** + * struct omap_hwmod_omap2_prcm - OMAP2/3-specific PRCM data + * @module_offs: PRCM submodule offset from the start of the PRM/CM + * @idlest_reg_id: IDLEST register ID (e.g., 3 for CM_IDLEST3) + * @idlest_idle_bit: register bit shift for CM_IDLEST slave idle bit + * + * @prcm_reg_id and @module_bit are specific to the AUTOIDLE, WKST, + * WKEN, GRPSEL registers. In an ideal world, no extra information + * would be needed for IDLEST information, but alas, there are some + * exceptions, so @idlest_reg_id, @idlest_idle_bit, @idlest_stdby_bit + * are needed for the IDLEST registers (c.f. 2430 I2CHS, 3430 USBHOST) + */ +struct omap_hwmod_omap2_prcm { + s16 module_offs; + u8 idlest_reg_id; + u8 idlest_idle_bit; +}; + +/* + * Possible values for struct omap_hwmod_omap4_prcm.flags + * + * HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT: Some IP blocks don't have a PRCM + * module-level context loss register associated with them; this + * flag bit should be set in those cases + * HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET: Some IP blocks have a valid CLKCTRL + * offset of zero; this flag bit should be set in those cases to + * distinguish from hwmods that have no clkctrl offset. + * HWMOD_OMAP4_CLKFWK_CLKCTR_CLOCK: Module clockctrl clock is managed + * by the common clock framework and not hwmod. + */ +#define HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT (1 << 0) +#define HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET (1 << 1) +#define HWMOD_OMAP4_CLKFWK_CLKCTR_CLOCK (1 << 2) + +/** + * struct omap_hwmod_omap4_prcm - OMAP4-specific PRCM data + * @clkctrl_offs: offset of the PRCM clock control register + * @rstctrl_offs: offset of the XXX_RSTCTRL register located in the PRM + * @context_offs: offset of the RM_*_CONTEXT register + * @lostcontext_mask: bitmask for selecting bits from RM_*_CONTEXT register + * @rstst_reg: (AM33XX only) address of the XXX_RSTST register in the PRM + * @submodule_wkdep_bit: bit shift of the WKDEP range + * @flags: PRCM register capabilities for this IP block + * @modulemode: allowable modulemodes + * @context_lost_counter: Count of module level context lost + * + * If @lostcontext_mask is not defined, context loss check code uses + * whole register without masking. @lostcontext_mask should only be + * defined in cases where @context_offs register is shared by two or + * more hwmods. + */ +struct omap_hwmod_omap4_prcm { + u16 clkctrl_offs; + u16 rstctrl_offs; + u16 rstst_offs; + u16 context_offs; + u32 lostcontext_mask; + u8 submodule_wkdep_bit; + u8 modulemode; + u8 flags; + int context_lost_counter; +}; + + +/* + * omap_hwmod.flags definitions + * + * HWMOD_SWSUP_SIDLE: omap_hwmod code should manually bring module in and out + * of idle, rather than relying on module smart-idle + * HWMOD_SWSUP_MSTANDBY: omap_hwmod code should manually bring module in and + * out of standby, rather than relying on module smart-standby + * HWMOD_INIT_NO_RESET: don't reset this module at boot - important for + * SDRAM controller, etc. XXX probably belongs outside the main hwmod file + * XXX Should be HWMOD_SETUP_NO_RESET + * HWMOD_INIT_NO_IDLE: don't idle this module at boot - important for SDRAM + * controller, etc. XXX probably belongs outside the main hwmod file + * XXX Should be HWMOD_SETUP_NO_IDLE + * HWMOD_NO_OCP_AUTOIDLE: disable module autoidle (OCP_SYSCONFIG.AUTOIDLE) + * when module is enabled, rather than the default, which is to + * enable autoidle + * HWMOD_SET_DEFAULT_CLOCKACT: program CLOCKACTIVITY bits at startup + * HWMOD_NO_IDLEST: this module does not have idle status - this is the case + * only for few initiator modules on OMAP2 & 3. + * HWMOD_CONTROL_OPT_CLKS_IN_RESET: Enable all optional clocks during reset. + * This is needed for devices like DSS that require optional clocks enabled + * in order to complete the reset. Optional clocks will be disabled + * again after the reset. + * HWMOD_16BIT_REG: Module has 16bit registers + * HWMOD_EXT_OPT_MAIN_CLK: The only main functional clock source for + * this IP block comes from an off-chip source and is not always + * enabled. This prevents the hwmod code from being able to + * enable and reset the IP block early. XXX Eventually it should + * be possible to query the clock framework for this information. + * HWMOD_BLOCK_WFI: Some OMAP peripherals apparently don't work + * correctly if the MPU is allowed to go idle while the + * peripherals are active. This is apparently true for the I2C on + * OMAP2420, and also the EMAC on AM3517/3505. It's unlikely that + * this is really true -- we're probably not configuring something + * correctly, or this is being abused to deal with some PM latency + * issues -- but we're currently suffering from a shortage of + * folks who are able to track these issues down properly. + * HWMOD_FORCE_MSTANDBY: Always keep MIDLEMODE bits cleared so that device + * is kept in force-standby mode. Failing to do so causes PM problems + * with musb on OMAP3630 at least. Note that musb has a dedicated register + * to control MSTANDBY signal when MIDLEMODE is set to force-standby. + * HWMOD_SWSUP_SIDLE_ACT: omap_hwmod code should manually bring the module + * out of idle, but rely on smart-idle to the put it back in idle, + * so the wakeups are still functional (Only known case for now is UART) + * HWMOD_RECONFIG_IO_CHAIN: omap_hwmod code needs to reconfigure wake-up + * events by calling _reconfigure_io_chain() when a device is enabled + * or idled. + * HWMOD_OPT_CLKS_NEEDED: The optional clocks are needed for the module to + * operate and they need to be handled at the same time as the main_clk. + * HWMOD_NO_IDLE: Do not idle the hwmod at all. Useful to handle certain + * IPs like CPSW on DRA7, where clocks to this module cannot be disabled. + * HWMOD_CLKDM_NOAUTO: Allows the hwmod's clockdomain to be prevented from + * entering HW_AUTO while hwmod is active. This is needed to workaround + * some modules which don't function correctly with HW_AUTO. For example, + * DCAN on DRA7x SoC needs this to workaround errata i893. + */ +#define HWMOD_SWSUP_SIDLE (1 << 0) +#define HWMOD_SWSUP_MSTANDBY (1 << 1) +#define HWMOD_INIT_NO_RESET (1 << 2) +#define HWMOD_INIT_NO_IDLE (1 << 3) +#define HWMOD_NO_OCP_AUTOIDLE (1 << 4) +#define HWMOD_SET_DEFAULT_CLOCKACT (1 << 5) +#define HWMOD_NO_IDLEST (1 << 6) +#define HWMOD_CONTROL_OPT_CLKS_IN_RESET (1 << 7) +#define HWMOD_16BIT_REG (1 << 8) +#define HWMOD_EXT_OPT_MAIN_CLK (1 << 9) +#define HWMOD_BLOCK_WFI (1 << 10) +#define HWMOD_FORCE_MSTANDBY (1 << 11) +#define HWMOD_SWSUP_SIDLE_ACT (1 << 12) +#define HWMOD_RECONFIG_IO_CHAIN (1 << 13) +#define HWMOD_OPT_CLKS_NEEDED (1 << 14) +#define HWMOD_NO_IDLE (1 << 15) +#define HWMOD_CLKDM_NOAUTO (1 << 16) + +/* + * omap_hwmod._int_flags definitions + * These are for internal use only and are managed by the omap_hwmod code. + * + * _HWMOD_NO_MPU_PORT: no path exists for the MPU to write to this module + * _HWMOD_SYSCONFIG_LOADED: set when the OCP_SYSCONFIG value has been cached + * _HWMOD_SKIP_ENABLE: set if hwmod enabled during init (HWMOD_INIT_NO_IDLE) - + * causes the first call to _enable() to only update the pinmux + */ +#define _HWMOD_NO_MPU_PORT (1 << 0) +#define _HWMOD_SYSCONFIG_LOADED (1 << 1) +#define _HWMOD_SKIP_ENABLE (1 << 2) + +/* + * omap_hwmod._state definitions + * + * INITIALIZED: reset (optionally), initialized, enabled, disabled + * (optionally) + * + * + */ +#define _HWMOD_STATE_UNKNOWN 0 +#define _HWMOD_STATE_REGISTERED 1 +#define _HWMOD_STATE_CLKS_INITED 2 +#define _HWMOD_STATE_INITIALIZED 3 +#define _HWMOD_STATE_ENABLED 4 +#define _HWMOD_STATE_IDLE 5 +#define _HWMOD_STATE_DISABLED 6 + +#ifdef CONFIG_PM +#define _HWMOD_STATE_DEFAULT _HWMOD_STATE_IDLE +#else +#define _HWMOD_STATE_DEFAULT _HWMOD_STATE_ENABLED +#endif + +/** + * struct omap_hwmod_class - the type of an IP block + * @name: name of the hwmod_class + * @sysc: device SYSCONFIG/SYSSTATUS register data + * @pre_shutdown: ptr to fn to be executed immediately prior to device shutdown + * @reset: ptr to fn to be executed in place of the standard hwmod reset fn + * @lock: ptr to fn to be executed to lock IP registers + * @unlock: ptr to fn to be executed to unlock IP registers + * + * Represent the class of a OMAP hardware "modules" (e.g. timer, + * smartreflex, gpio, uart...) + * + * @pre_shutdown is a function that will be run immediately before + * hwmod clocks are disabled, etc. It is intended for use for hwmods + * like the MPU watchdog, which cannot be disabled with the standard + * omap_hwmod_shutdown(). The function should return 0 upon success, + * or some negative error upon failure. Returning an error will cause + * omap_hwmod_shutdown() to abort the device shutdown and return an + * error. + * + * If @reset is defined, then the function it points to will be + * executed in place of the standard hwmod _reset() code in + * mach-omap2/omap_hwmod.c. This is needed for IP blocks which have + * unusual reset sequences - usually processor IP blocks like the IVA. + */ +struct omap_hwmod_class { + const char *name; + struct omap_hwmod_class_sysconfig *sysc; + int (*pre_shutdown)(struct omap_hwmod *oh); + int (*reset)(struct omap_hwmod *oh); + void (*lock)(struct omap_hwmod *oh); + void (*unlock)(struct omap_hwmod *oh); +}; + +/** + * struct omap_hwmod - integration data for OMAP hardware "modules" (IP blocks) + * @name: name of the hwmod + * @class: struct omap_hwmod_class * to the class of this hwmod + * @od: struct omap_device currently associated with this hwmod (internal use) + * @prcm: PRCM data pertaining to this hwmod + * @main_clk: main clock: OMAP clock name + * @_clk: pointer to the main struct clk (filled in at runtime) + * @opt_clks: other device clocks that drivers can request (0..*) + * @voltdm: pointer to voltage domain (filled in at runtime) + * @dev_attr: arbitrary device attributes that can be passed to the driver + * @_sysc_cache: internal-use hwmod flags + * @mpu_rt_idx: index of device address space for register target (for DT boot) + * @_mpu_rt_va: cached register target start address (internal use) + * @_mpu_port: cached MPU register target slave (internal use) + * @opt_clks_cnt: number of @opt_clks + * @master_cnt: number of @master entries + * @slaves_cnt: number of @slave entries + * @response_lat: device OCP response latency (in interface clock cycles) + * @_int_flags: internal-use hwmod flags + * @_state: internal-use hwmod state + * @_postsetup_state: internal-use state to leave the hwmod in after _setup() + * @flags: hwmod flags (documented below) + * @_lock: spinlock serializing operations on this hwmod + * @node: list node for hwmod list (internal use) + * @parent_hwmod: (temporary) a pointer to the hierarchical parent of this hwmod + * + * @main_clk refers to this module's "main clock," which for our + * purposes is defined as "the functional clock needed for register + * accesses to complete." Modules may not have a main clock if the + * interface clock also serves as a main clock. + * + * Parameter names beginning with an underscore are managed internally by + * the omap_hwmod code and should not be set during initialization. + * + * @masters and @slaves are now deprecated. + * + * @parent_hwmod is temporary; there should be no need for it, as this + * information should already be expressed in the OCP interface + * structures. @parent_hwmod is present as a workaround until we improve + * handling for hwmods with multiple parents (e.g., OMAP4+ DSS with + * multiple register targets across different interconnects). + */ +struct omap_hwmod { + const char *name; + struct omap_hwmod_class *class; + struct omap_device *od; + struct omap_hwmod_rst_info *rst_lines; + union { + struct omap_hwmod_omap2_prcm omap2; + struct omap_hwmod_omap4_prcm omap4; + } prcm; + const char *main_clk; + struct clk *_clk; + struct omap_hwmod_opt_clk *opt_clks; + const char *clkdm_name; + struct clockdomain *clkdm; + struct list_head slave_ports; /* connect to *_TA */ + void *dev_attr; + u32 _sysc_cache; + void __iomem *_mpu_rt_va; + spinlock_t _lock; + struct lock_class_key hwmod_key; /* unique lock class */ + struct list_head node; + struct omap_hwmod_ocp_if *_mpu_port; + u32 flags; + u8 mpu_rt_idx; + u8 response_lat; + u8 rst_lines_cnt; + u8 opt_clks_cnt; + u8 slaves_cnt; + u8 hwmods_cnt; + u8 _int_flags; + u8 _state; + u8 _postsetup_state; + struct omap_hwmod *parent_hwmod; +}; + +#ifdef CONFIG_OMAP_HWMOD + +struct device_node; + +struct omap_hwmod *omap_hwmod_lookup(const char *name); +int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh, void *data), + void *data); + +int omap_hwmod_parse_module_range(struct omap_hwmod *oh, + struct device_node *np, + struct resource *res); + +struct ti_sysc_module_data; +struct ti_sysc_cookie; + +int omap_hwmod_init_module(struct device *dev, + const struct ti_sysc_module_data *data, + struct ti_sysc_cookie *cookie); + +int omap_hwmod_enable(struct omap_hwmod *oh); +int omap_hwmod_idle(struct omap_hwmod *oh); +int omap_hwmod_shutdown(struct omap_hwmod *oh); + +int omap_hwmod_assert_hardreset(struct omap_hwmod *oh, const char *name); +int omap_hwmod_deassert_hardreset(struct omap_hwmod *oh, const char *name); + +void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs); +u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs); +int omap_hwmod_softreset(struct omap_hwmod *oh); + +void __iomem *omap_hwmod_get_mpu_rt_va(struct omap_hwmod *oh); + +int omap_hwmod_for_each_by_class(const char *classname, + int (*fn)(struct omap_hwmod *oh, + void *user), + void *user); + +int omap_hwmod_set_postsetup_state(struct omap_hwmod *oh, u8 state); + +extern void __init omap_hwmod_init(void); + +#else /* CONFIG_OMAP_HWMOD */ + +static inline int +omap_hwmod_for_each_by_class(const char *classname, + int (*fn)(struct omap_hwmod *oh, void *user), + void *user) +{ + return 0; +} +#endif /* CONFIG_OMAP_HWMOD */ + +/* + * Chip variant-specific hwmod init routines - XXX should be converted + * to use initcalls once the initial boot ordering is straightened out + */ +extern int omap2420_hwmod_init(void); +extern int omap2430_hwmod_init(void); +extern int omap3xxx_hwmod_init(void); +extern int dm814x_hwmod_init(void); +extern int dm816x_hwmod_init(void); + +extern int __init omap_hwmod_register_links(struct omap_hwmod_ocp_if **ois); + +#endif diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c new file mode 100644 index 000000000..dbd9dc9f0 --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -0,0 +1,402 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod_2420_data.c - hardware modules present on the OMAP2420 chips + * + * Copyright (C) 2009-2011 Nokia Corporation + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + * + * XXX handle crossbar/shared link difference for L3? + * XXX these should be marked initdata for multi-OMAP kernels + */ + +#include <linux/platform_data/i2c-omap.h> + +#include "omap_hwmod.h" +#include "l3_2xxx.h" +#include "l4_2xxx.h" + +#include "omap_hwmod_common_data.h" + +#include "cm-regbits-24xx.h" +#include "prm-regbits-24xx.h" +#include "i2c.h" +#include "mmc.h" +#include "wd_timer.h" + +/* + * OMAP2420 hardware module integration data + * + * All of the data in this section should be autogeneratable from the + * TI hardware database or other technical documentation. Data that + * is driver-specific or driver-kernel integration-specific belongs + * elsewhere. + */ + +/* + * IP blocks + */ + +/* IVA1 (IVA1) */ +static struct omap_hwmod_class iva1_hwmod_class = { + .name = "iva1", +}; + +static struct omap_hwmod_rst_info omap2420_iva_resets[] = { + { .name = "iva", .rst_shift = 8 }, +}; + +static struct omap_hwmod omap2420_iva_hwmod = { + .name = "iva", + .class = &iva1_hwmod_class, + .clkdm_name = "iva1_clkdm", + .rst_lines = omap2420_iva_resets, + .rst_lines_cnt = ARRAY_SIZE(omap2420_iva_resets), + .main_clk = "iva1_ifck", +}; + +/* DSP */ +static struct omap_hwmod_class dsp_hwmod_class = { + .name = "dsp", +}; + +static struct omap_hwmod_rst_info omap2420_dsp_resets[] = { + { .name = "logic", .rst_shift = 0 }, + { .name = "mmu", .rst_shift = 1 }, +}; + +static struct omap_hwmod omap2420_dsp_hwmod = { + .name = "dsp", + .class = &dsp_hwmod_class, + .clkdm_name = "dsp_clkdm", + .rst_lines = omap2420_dsp_resets, + .rst_lines_cnt = ARRAY_SIZE(omap2420_dsp_resets), + .main_clk = "dsp_fck", +}; + +/* I2C common */ +static struct omap_hwmod_class_sysconfig i2c_sysc = { + .rev_offs = 0x00, + .sysc_offs = 0x20, + .syss_offs = 0x10, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class i2c_class = { + .name = "i2c", + .sysc = &i2c_sysc, + .reset = &omap_i2c_reset, +}; + +/* I2C1 */ +static struct omap_hwmod omap2420_i2c1_hwmod = { + .name = "i2c1", + .main_clk = "i2c1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP2420_ST_I2C1_SHIFT, + }, + }, + .class = &i2c_class, + /* + * From mach-omap2/pm24xx.c: "Putting MPU into the WFI state + * while a transfer is active seems to cause the I2C block to + * timeout. Why? Good question." + */ + .flags = (HWMOD_16BIT_REG | HWMOD_BLOCK_WFI), +}; + +/* I2C2 */ +static struct omap_hwmod omap2420_i2c2_hwmod = { + .name = "i2c2", + .main_clk = "i2c2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP2420_ST_I2C2_SHIFT, + }, + }, + .class = &i2c_class, + .flags = HWMOD_16BIT_REG, +}; + +/* mailbox */ +static struct omap_hwmod omap2420_mailbox_hwmod = { + .name = "mailbox", + .class = &omap2xxx_mailbox_hwmod_class, + .main_clk = "mailboxes_ick", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MAILBOXES_SHIFT, + }, + }, +}; + +/* + * 'mcbsp' class + * multi channel buffered serial port controller + */ + +static struct omap_hwmod_class omap2420_mcbsp_hwmod_class = { + .name = "mcbsp", +}; + +static struct omap_hwmod_opt_clk mcbsp_opt_clks[] = { + { .role = "pad_fck", .clk = "mcbsp_clks" }, + { .role = "prcm_fck", .clk = "func_96m_ck" }, +}; + +/* mcbsp1 */ +static struct omap_hwmod omap2420_mcbsp1_hwmod = { + .name = "mcbsp1", + .class = &omap2420_mcbsp_hwmod_class, + .main_clk = "mcbsp1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MCBSP1_SHIFT, + }, + }, + .opt_clks = mcbsp_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp_opt_clks), +}; + +/* mcbsp2 */ +static struct omap_hwmod omap2420_mcbsp2_hwmod = { + .name = "mcbsp2", + .class = &omap2420_mcbsp_hwmod_class, + .main_clk = "mcbsp2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MCBSP2_SHIFT, + }, + }, + .opt_clks = mcbsp_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp_opt_clks), +}; + +static struct omap_hwmod_class_sysconfig omap2420_msdi_sysc = { + .rev_offs = 0x3c, + .sysc_offs = 0x64, + .syss_offs = 0x68, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2420_msdi_hwmod_class = { + .name = "msdi", + .sysc = &omap2420_msdi_sysc, + .reset = &omap_msdi_reset, +}; + +/* msdi1 */ +static struct omap_hwmod omap2420_msdi1_hwmod = { + .name = "msdi1", + .class = &omap2420_msdi_hwmod_class, + .main_clk = "mmc_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP2420_ST_MMC_SHIFT, + }, + }, + .flags = HWMOD_16BIT_REG, +}; + +/* HDQ1W/1-wire */ +static struct omap_hwmod omap2420_hdq1w_hwmod = { + .name = "hdq1w", + .main_clk = "hdq_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_HDQ_SHIFT, + }, + }, + .class = &omap2_hdq1w_class, +}; + +/* + * interfaces + */ + +/* L4 CORE -> I2C1 interface */ +static struct omap_hwmod_ocp_if omap2420_l4_core__i2c1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2420_i2c1_hwmod, + .clk = "i2c1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> I2C2 interface */ +static struct omap_hwmod_ocp_if omap2420_l4_core__i2c2 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2420_i2c2_hwmod, + .clk = "i2c2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* IVA <- L3 interface */ +static struct omap_hwmod_ocp_if omap2420_l3__iva = { + .master = &omap2xxx_l3_main_hwmod, + .slave = &omap2420_iva_hwmod, + .clk = "core_l3_ck", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* DSP <- L3 interface */ +static struct omap_hwmod_ocp_if omap2420_l3__dsp = { + .master = &omap2xxx_l3_main_hwmod, + .slave = &omap2420_dsp_hwmod, + .clk = "dsp_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> wd_timer2 */ +static struct omap_hwmod_ocp_if omap2420_l4_wkup__wd_timer2 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_wd_timer2_hwmod, + .clk = "mpu_wdt_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio1 */ +static struct omap_hwmod_ocp_if omap2420_l4_wkup__gpio1 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio1_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio2 */ +static struct omap_hwmod_ocp_if omap2420_l4_wkup__gpio2 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio2_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio3 */ +static struct omap_hwmod_ocp_if omap2420_l4_wkup__gpio3 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio3_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio4 */ +static struct omap_hwmod_ocp_if omap2420_l4_wkup__gpio4 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio4_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mailbox */ +static struct omap_hwmod_ocp_if omap2420_l4_core__mailbox = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2420_mailbox_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp1 */ +static struct omap_hwmod_ocp_if omap2420_l4_core__mcbsp1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2420_mcbsp1_hwmod, + .clk = "mcbsp1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp2 */ +static struct omap_hwmod_ocp_if omap2420_l4_core__mcbsp2 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2420_mcbsp2_hwmod, + .clk = "mcbsp2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> msdi1 */ +static struct omap_hwmod_ocp_if omap2420_l4_core__msdi1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2420_msdi1_hwmod, + .clk = "mmc_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> hdq1w interface */ +static struct omap_hwmod_ocp_if omap2420_l4_core__hdq1w = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2420_hdq1w_hwmod, + .clk = "hdq_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE, +}; + +static struct omap_hwmod_ocp_if omap2420_l3__gpmc = { + .master = &omap2xxx_l3_main_hwmod, + .slave = &omap2xxx_gpmc_hwmod, + .clk = "core_l3_ck", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod_ocp_if *omap2420_hwmod_ocp_ifs[] __initdata = { + &omap2xxx_l3_main__l4_core, + &omap2xxx_mpu__l3_main, + &omap2xxx_dss__l3, + &omap2xxx_l4_core__mcspi1, + &omap2xxx_l4_core__mcspi2, + &omap2xxx_l4_core__l4_wkup, + &omap2_l4_core__uart1, + &omap2_l4_core__uart2, + &omap2_l4_core__uart3, + &omap2420_l4_core__i2c1, + &omap2420_l4_core__i2c2, + &omap2420_l3__iva, + &omap2420_l3__dsp, + &omap2xxx_l4_core__timer3, + &omap2xxx_l4_core__timer4, + &omap2xxx_l4_core__timer5, + &omap2xxx_l4_core__timer6, + &omap2xxx_l4_core__timer7, + &omap2xxx_l4_core__timer8, + &omap2xxx_l4_core__timer9, + &omap2xxx_l4_core__timer10, + &omap2xxx_l4_core__timer11, + &omap2xxx_l4_core__timer12, + &omap2420_l4_wkup__wd_timer2, + &omap2xxx_l4_core__dss, + &omap2xxx_l4_core__dss_dispc, + &omap2xxx_l4_core__dss_rfbi, + &omap2xxx_l4_core__dss_venc, + &omap2420_l4_wkup__gpio1, + &omap2420_l4_wkup__gpio2, + &omap2420_l4_wkup__gpio3, + &omap2420_l4_wkup__gpio4, + &omap2420_l4_core__mailbox, + &omap2420_l4_core__mcbsp1, + &omap2420_l4_core__mcbsp2, + &omap2420_l4_core__msdi1, + &omap2xxx_l4_core__rng, + &omap2xxx_l4_core__sham, + &omap2xxx_l4_core__aes, + &omap2420_l4_core__hdq1w, + &omap2420_l3__gpmc, + NULL, +}; + +int __init omap2420_hwmod_init(void) +{ + omap_hwmod_init(); + return omap_hwmod_register_links(omap2420_hwmod_ocp_ifs); +} diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c new file mode 100644 index 000000000..c93200801 --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -0,0 +1,606 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod_2430_data.c - hardware modules present on the OMAP2430 chips + * + * Copyright (C) 2009-2011 Nokia Corporation + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + * + * XXX handle crossbar/shared link difference for L3? + * XXX these should be marked initdata for multi-OMAP kernels + */ + +#include <linux/platform_data/i2c-omap.h> +#include <linux/platform_data/hsmmc-omap.h> + +#include "omap_hwmod.h" +#include "l3_2xxx.h" + +#include "soc.h" +#include "omap_hwmod_common_data.h" +#include "prm-regbits-24xx.h" +#include "cm-regbits-24xx.h" +#include "i2c.h" +#include "wd_timer.h" + +/* + * OMAP2430 hardware module integration data + * + * All of the data in this section should be autogeneratable from the + * TI hardware database or other technical documentation. Data that + * is driver-specific or driver-kernel integration-specific belongs + * elsewhere. + */ + +/* + * IP blocks + */ + +/* IVA2 (IVA2) */ +static struct omap_hwmod_rst_info omap2430_iva_resets[] = { + { .name = "logic", .rst_shift = 0 }, + { .name = "mmu", .rst_shift = 1 }, +}; + +static struct omap_hwmod omap2430_iva_hwmod = { + .name = "iva", + .class = &iva_hwmod_class, + .clkdm_name = "dsp_clkdm", + .rst_lines = omap2430_iva_resets, + .rst_lines_cnt = ARRAY_SIZE(omap2430_iva_resets), + .main_clk = "dsp_fck", +}; + +/* I2C common */ +static struct omap_hwmod_class_sysconfig i2c_sysc = { + .rev_offs = 0x00, + .sysc_offs = 0x20, + .syss_offs = 0x10, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class i2c_class = { + .name = "i2c", + .sysc = &i2c_sysc, + .reset = &omap_i2c_reset, +}; + +/* I2C1 */ +static struct omap_hwmod omap2430_i2c1_hwmod = { + .name = "i2c1", + .flags = HWMOD_16BIT_REG, + .main_clk = "i2chs1_fck", + .prcm = { + .omap2 = { + /* + * NOTE: The CM_FCLKEN* and CM_ICLKEN* for + * I2CHS IP's do not follow the usual pattern. + * prcm_reg_id alone cannot be used to program + * the iclk and fclk. Needs to be handled using + * additional flags when clk handling is moved + * to hwmod framework. + */ + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP2430_ST_I2CHS1_SHIFT, + }, + }, + .class = &i2c_class, +}; + +/* I2C2 */ +static struct omap_hwmod omap2430_i2c2_hwmod = { + .name = "i2c2", + .flags = HWMOD_16BIT_REG, + .main_clk = "i2chs2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP2430_ST_I2CHS2_SHIFT, + }, + }, + .class = &i2c_class, +}; + +/* gpio5 */ +static struct omap_hwmod omap2430_gpio5_hwmod = { + .name = "gpio5", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpio5_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP2430_ST_GPIO5_SHIFT, + }, + }, + .class = &omap2xxx_gpio_hwmod_class, +}; + +/* mailbox */ +static struct omap_hwmod omap2430_mailbox_hwmod = { + .name = "mailbox", + .class = &omap2xxx_mailbox_hwmod_class, + .main_clk = "mailboxes_ick", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MAILBOXES_SHIFT, + }, + }, +}; + +/* mcspi3 */ +static struct omap_hwmod omap2430_mcspi3_hwmod = { + .name = "mcspi3", + .main_clk = "mcspi3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP2430_ST_MCSPI3_SHIFT, + }, + }, + .class = &omap2xxx_mcspi_class, +}; + +/* usbhsotg */ +static struct omap_hwmod_class_sysconfig omap2430_usbhsotg_sysc = { + .rev_offs = 0x0400, + .sysc_offs = 0x0404, + .syss_offs = 0x0408, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE| + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class usbotg_class = { + .name = "usbotg", + .sysc = &omap2430_usbhsotg_sysc, +}; + +/* usb_otg_hs */ +static struct omap_hwmod omap2430_usbhsotg_hwmod = { + .name = "usb_otg_hs", + .main_clk = "usbhs_ick", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP2430_ST_USBHS_SHIFT, + }, + }, + .class = &usbotg_class, + /* + * Erratum ID: i479 idle_req / idle_ack mechanism potentially + * broken when autoidle is enabled + * workaround is to disable the autoidle bit at module level. + */ + .flags = HWMOD_NO_OCP_AUTOIDLE | HWMOD_SWSUP_SIDLE + | HWMOD_SWSUP_MSTANDBY, +}; + +/* + * 'mcbsp' class + * multi channel buffered serial port controller + */ + +static struct omap_hwmod_class_sysconfig omap2430_mcbsp_sysc = { + .rev_offs = 0x007C, + .sysc_offs = 0x008C, + .sysc_flags = (SYSC_HAS_SOFTRESET), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2430_mcbsp_hwmod_class = { + .name = "mcbsp", + .sysc = &omap2430_mcbsp_sysc, +}; + +static struct omap_hwmod_opt_clk mcbsp_opt_clks[] = { + { .role = "pad_fck", .clk = "mcbsp_clks" }, + { .role = "prcm_fck", .clk = "func_96m_ck" }, +}; + +/* mcbsp1 */ +static struct omap_hwmod omap2430_mcbsp1_hwmod = { + .name = "mcbsp1", + .class = &omap2430_mcbsp_hwmod_class, + .main_clk = "mcbsp1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MCBSP1_SHIFT, + }, + }, + .opt_clks = mcbsp_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp_opt_clks), +}; + +/* mcbsp2 */ +static struct omap_hwmod omap2430_mcbsp2_hwmod = { + .name = "mcbsp2", + .class = &omap2430_mcbsp_hwmod_class, + .main_clk = "mcbsp2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MCBSP2_SHIFT, + }, + }, + .opt_clks = mcbsp_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp_opt_clks), +}; + +/* mcbsp3 */ +static struct omap_hwmod omap2430_mcbsp3_hwmod = { + .name = "mcbsp3", + .class = &omap2430_mcbsp_hwmod_class, + .main_clk = "mcbsp3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP2430_ST_MCBSP3_SHIFT, + }, + }, + .opt_clks = mcbsp_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp_opt_clks), +}; + +/* mcbsp4 */ +static struct omap_hwmod omap2430_mcbsp4_hwmod = { + .name = "mcbsp4", + .class = &omap2430_mcbsp_hwmod_class, + .main_clk = "mcbsp4_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP2430_ST_MCBSP4_SHIFT, + }, + }, + .opt_clks = mcbsp_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp_opt_clks), +}; + +/* mcbsp5 */ +static struct omap_hwmod omap2430_mcbsp5_hwmod = { + .name = "mcbsp5", + .class = &omap2430_mcbsp_hwmod_class, + .main_clk = "mcbsp5_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP2430_ST_MCBSP5_SHIFT, + }, + }, + .opt_clks = mcbsp_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp_opt_clks), +}; + +/* MMC/SD/SDIO common */ +static struct omap_hwmod_class_sysconfig omap2430_mmc_sysc = { + .rev_offs = 0x1fc, + .sysc_offs = 0x10, + .syss_offs = 0x14, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2430_mmc_class = { + .name = "mmc", + .sysc = &omap2430_mmc_sysc, +}; + +/* MMC/SD/SDIO1 */ +static struct omap_hwmod_opt_clk omap2430_mmc1_opt_clks[] = { + { .role = "dbck", .clk = "mmchsdb1_fck" }, +}; + +static struct omap_hsmmc_dev_attr mmc1_dev_attr = { + .flags = OMAP_HSMMC_SUPPORTS_DUAL_VOLT, +}; + +static struct omap_hwmod omap2430_mmc1_hwmod = { + .name = "mmc1", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .opt_clks = omap2430_mmc1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(omap2430_mmc1_opt_clks), + .main_clk = "mmchs1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP2430_ST_MMCHS1_SHIFT, + }, + }, + .dev_attr = &mmc1_dev_attr, + .class = &omap2430_mmc_class, +}; + +/* MMC/SD/SDIO2 */ +static struct omap_hwmod_opt_clk omap2430_mmc2_opt_clks[] = { + { .role = "dbck", .clk = "mmchsdb2_fck" }, +}; + +static struct omap_hwmod omap2430_mmc2_hwmod = { + .name = "mmc2", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .opt_clks = omap2430_mmc2_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(omap2430_mmc2_opt_clks), + .main_clk = "mmchs2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP2430_ST_MMCHS2_SHIFT, + }, + }, + .class = &omap2430_mmc_class, +}; + +/* HDQ1W/1-wire */ +static struct omap_hwmod omap2430_hdq1w_hwmod = { + .name = "hdq1w", + .main_clk = "hdq_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_HDQ_SHIFT, + }, + }, + .class = &omap2_hdq1w_class, +}; + +/* + * interfaces + */ + +/* L3 -> L4_CORE interface */ +/* l3_core -> usbhsotg interface */ +static struct omap_hwmod_ocp_if omap2430_usbhsotg__l3 = { + .master = &omap2430_usbhsotg_hwmod, + .slave = &omap2xxx_l3_main_hwmod, + .clk = "core_l3_ck", + .user = OCP_USER_MPU, +}; + +/* L4 CORE -> I2C1 interface */ +static struct omap_hwmod_ocp_if omap2430_l4_core__i2c1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_i2c1_hwmod, + .clk = "i2c1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> I2C2 interface */ +static struct omap_hwmod_ocp_if omap2430_l4_core__i2c2 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_i2c2_hwmod, + .clk = "i2c2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core ->usbhsotg interface */ +static struct omap_hwmod_ocp_if omap2430_l4_core__usbhsotg = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_usbhsotg_hwmod, + .clk = "usb_l4_ick", + .user = OCP_USER_MPU, +}; + +/* L4 CORE -> MMC1 interface */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mmc1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mmc1_hwmod, + .clk = "mmchs1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> MMC2 interface */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mmc2 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mmc2_hwmod, + .clk = "mmchs2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> mcspi3 interface */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mcspi3 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mcspi3_hwmod, + .clk = "mcspi3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* IVA2 <- L3 interface */ +static struct omap_hwmod_ocp_if omap2430_l3__iva = { + .master = &omap2xxx_l3_main_hwmod, + .slave = &omap2430_iva_hwmod, + .clk = "core_l3_ck", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> wd_timer2 */ +static struct omap_hwmod_ocp_if omap2430_l4_wkup__wd_timer2 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_wd_timer2_hwmod, + .clk = "mpu_wdt_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio1 */ +static struct omap_hwmod_ocp_if omap2430_l4_wkup__gpio1 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio1_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio2 */ +static struct omap_hwmod_ocp_if omap2430_l4_wkup__gpio2 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio2_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio3 */ +static struct omap_hwmod_ocp_if omap2430_l4_wkup__gpio3 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio3_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio4 */ +static struct omap_hwmod_ocp_if omap2430_l4_wkup__gpio4 = { + .master = &omap2xxx_l4_wkup_hwmod, + .slave = &omap2xxx_gpio4_hwmod, + .clk = "gpios_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> gpio5 */ +static struct omap_hwmod_ocp_if omap2430_l4_core__gpio5 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_gpio5_hwmod, + .clk = "gpio5_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mailbox */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mailbox = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mailbox_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp1 */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mcbsp1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mcbsp1_hwmod, + .clk = "mcbsp1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp2 */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mcbsp2 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mcbsp2_hwmod, + .clk = "mcbsp2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp3 */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mcbsp3 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mcbsp3_hwmod, + .clk = "mcbsp3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp4 */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mcbsp4 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mcbsp4_hwmod, + .clk = "mcbsp4_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp5 */ +static struct omap_hwmod_ocp_if omap2430_l4_core__mcbsp5 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_mcbsp5_hwmod, + .clk = "mcbsp5_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> hdq1w */ +static struct omap_hwmod_ocp_if omap2430_l4_core__hdq1w = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2430_hdq1w_hwmod, + .clk = "hdq_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE, +}; + +static struct omap_hwmod_ocp_if omap2430_l3__gpmc = { + .master = &omap2xxx_l3_main_hwmod, + .slave = &omap2xxx_gpmc_hwmod, + .clk = "core_l3_ck", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod_ocp_if *omap2430_hwmod_ocp_ifs[] __initdata = { + &omap2xxx_l3_main__l4_core, + &omap2xxx_mpu__l3_main, + &omap2xxx_dss__l3, + &omap2430_usbhsotg__l3, + &omap2430_l4_core__i2c1, + &omap2430_l4_core__i2c2, + &omap2xxx_l4_core__l4_wkup, + &omap2_l4_core__uart1, + &omap2_l4_core__uart2, + &omap2_l4_core__uart3, + &omap2430_l4_core__usbhsotg, + &omap2430_l4_core__mmc1, + &omap2430_l4_core__mmc2, + &omap2xxx_l4_core__mcspi1, + &omap2xxx_l4_core__mcspi2, + &omap2430_l4_core__mcspi3, + &omap2430_l3__iva, + &omap2xxx_l4_core__timer3, + &omap2xxx_l4_core__timer4, + &omap2xxx_l4_core__timer5, + &omap2xxx_l4_core__timer6, + &omap2xxx_l4_core__timer7, + &omap2xxx_l4_core__timer8, + &omap2xxx_l4_core__timer9, + &omap2xxx_l4_core__timer10, + &omap2xxx_l4_core__timer11, + &omap2xxx_l4_core__timer12, + &omap2430_l4_wkup__wd_timer2, + &omap2xxx_l4_core__dss, + &omap2xxx_l4_core__dss_dispc, + &omap2xxx_l4_core__dss_rfbi, + &omap2xxx_l4_core__dss_venc, + &omap2430_l4_wkup__gpio1, + &omap2430_l4_wkup__gpio2, + &omap2430_l4_wkup__gpio3, + &omap2430_l4_wkup__gpio4, + &omap2430_l4_core__gpio5, + &omap2430_l4_core__mailbox, + &omap2430_l4_core__mcbsp1, + &omap2430_l4_core__mcbsp2, + &omap2430_l4_core__mcbsp3, + &omap2430_l4_core__mcbsp4, + &omap2430_l4_core__mcbsp5, + &omap2430_l4_core__hdq1w, + &omap2xxx_l4_core__rng, + &omap2xxx_l4_core__sham, + &omap2xxx_l4_core__aes, + &omap2430_l3__gpmc, + NULL, +}; + +int __init omap2430_hwmod_init(void) +{ + omap_hwmod_init(); + return omap_hwmod_register_links(omap2430_hwmod_ocp_ifs); +} diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c new file mode 100644 index 000000000..67f1f3890 --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod_2xxx_3xxx_ipblock_data.c - common IP block data for OMAP2/3 + * + * Copyright (C) 2011 Nokia Corporation + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + */ + +#include <linux/dmaengine.h> +#include <linux/omap-dma.h> + +#include "omap_hwmod.h" +#include "hdq1w.h" + +#include "omap_hwmod_common_data.h" + +/* UART */ + +static struct omap_hwmod_class_sysconfig omap2_uart_sysc = { + .rev_offs = 0x50, + .sysc_offs = 0x54, + .syss_offs = 0x58, + .sysc_flags = (SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +struct omap_hwmod_class omap2_uart_class = { + .name = "uart", + .sysc = &omap2_uart_sysc, +}; + +/* + * 'venc' class + * video encoder + */ + +struct omap_hwmod_class omap2_venc_hwmod_class = { + .name = "venc", +}; + +/* + * omap_hwmod class data + */ + +struct omap_hwmod_class l3_hwmod_class = { + .name = "l3", +}; + +struct omap_hwmod_class l4_hwmod_class = { + .name = "l4", +}; + +struct omap_hwmod_class mpu_hwmod_class = { + .name = "mpu", +}; + +struct omap_hwmod_class iva_hwmod_class = { + .name = "iva", +}; + +static struct omap_hwmod_class_sysconfig omap2_hdq1w_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x14, + .syss_offs = 0x18, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +struct omap_hwmod_class omap2_hdq1w_class = { + .name = "hdq1w", + .sysc = &omap2_hdq1w_sysc, + .reset = &omap_hdq1w_reset, +}; diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c new file mode 100644 index 000000000..761d34914 --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c @@ -0,0 +1,256 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod_2xxx_interconnect_data.c - common interconnect data for OMAP2xxx + * + * Copyright (C) 2009-2011 Nokia Corporation + * Paul Walmsley + * + * XXX handle crossbar/shared link difference for L3? + * XXX these should be marked initdata for multi-OMAP kernels + */ +#include <linux/sizes.h> + +#include "omap_hwmod.h" +#include "l3_2xxx.h" +#include "l4_2xxx.h" + +#include "omap_hwmod_common_data.h" + +/* + * Common interconnect data + */ + +/* L3 -> L4_CORE interface */ +struct omap_hwmod_ocp_if omap2xxx_l3_main__l4_core = { + .master = &omap2xxx_l3_main_hwmod, + .slave = &omap2xxx_l4_core_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* MPU -> L3 interface */ +struct omap_hwmod_ocp_if omap2xxx_mpu__l3_main = { + .master = &omap2xxx_mpu_hwmod, + .slave = &omap2xxx_l3_main_hwmod, + .user = OCP_USER_MPU, +}; + +/* DSS -> l3 */ +struct omap_hwmod_ocp_if omap2xxx_dss__l3 = { + .master = &omap2xxx_dss_core_hwmod, + .slave = &omap2xxx_l3_main_hwmod, + .fw = { + .omap2 = { + .l3_perm_bit = OMAP2_L3_CORE_FW_CONNID_DSS, + .flags = OMAP_FIREWALL_L3, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4_CORE -> L4_WKUP interface */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__l4_wkup = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_l4_wkup_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> UART1 interface */ +struct omap_hwmod_ocp_if omap2_l4_core__uart1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_uart1_hwmod, + .clk = "uart1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> UART2 interface */ +struct omap_hwmod_ocp_if omap2_l4_core__uart2 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_uart2_hwmod, + .clk = "uart2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 PER -> UART3 interface */ +struct omap_hwmod_ocp_if omap2_l4_core__uart3 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_uart3_hwmod, + .clk = "uart3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> mcspi1 interface */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__mcspi1 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_mcspi1_hwmod, + .clk = "mcspi1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> mcspi2 interface */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__mcspi2 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_mcspi2_hwmod, + .clk = "mcspi2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer3 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer3 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer3_hwmod, + .clk = "gpt3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer4 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer4 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer4_hwmod, + .clk = "gpt4_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer5 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer5 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer5_hwmod, + .clk = "gpt5_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer6 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer6 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer6_hwmod, + .clk = "gpt6_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer7 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer7 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer7_hwmod, + .clk = "gpt7_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer8 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer8 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer8_hwmod, + .clk = "gpt8_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer9 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer9 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer9_hwmod, + .clk = "gpt9_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer10 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer10 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer10_hwmod, + .clk = "gpt10_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer11 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer11 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer11_hwmod, + .clk = "gpt11_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer12 */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__timer12 = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_timer12_hwmod, + .clk = "gpt12_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__dss = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_dss_core_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP2420_L4_CORE_FW_DSS_CORE_REGION, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss_dispc */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__dss_dispc = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_dss_dispc_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP2420_L4_CORE_FW_DSS_DISPC_REGION, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss_rfbi */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__dss_rfbi = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_dss_rfbi_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP2420_L4_CORE_FW_DSS_CORE_REGION, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss_venc */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__dss_venc = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_dss_venc_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP2420_L4_CORE_FW_DSS_VENC_REGION, + .flags = OMAP_FIREWALL_L4, + }, + }, + .flags = OCPIF_SWSUP_IDLE, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> rng */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__rng = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_rng_hwmod, + .clk = "rng_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> sham interface */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__sham = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_sham_hwmod, + .clk = "sha_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> aes interface */ +struct omap_hwmod_ocp_if omap2xxx_l4_core__aes = { + .master = &omap2xxx_l4_core_hwmod, + .slave = &omap2xxx_aes_hwmod, + .clk = "aes_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c new file mode 100644 index 000000000..4982e04ea --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c @@ -0,0 +1,668 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod_2xxx_ipblock_data.c - common IP block data for OMAP2xxx + * + * Copyright (C) 2011 Nokia Corporation + * Paul Walmsley + */ + +#include <linux/types.h> + +#include "omap_hwmod.h" +#include "omap_hwmod_common_data.h" +#include "cm-regbits-24xx.h" +#include "prm-regbits-24xx.h" +#include "wd_timer.h" + +/* + * 'dispc' class + * display controller + */ + +static struct omap_hwmod_class_sysconfig omap2_dispc_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2_dispc_hwmod_class = { + .name = "dispc", + .sysc = &omap2_dispc_sysc, +}; + +/* OMAP2xxx Timer Common */ +static struct omap_hwmod_class_sysconfig omap2xxx_timer_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_CLOCKACTIVITY | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2xxx_timer_hwmod_class = { + .name = "timer", + .sysc = &omap2xxx_timer_sysc, +}; + +/* + * 'wd_timer' class + * 32-bit watchdog upward counter that generates a pulse on the reset pin on + * overflow condition + */ + +static struct omap_hwmod_class_sysconfig omap2xxx_wd_timer_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_EMUFREE | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2xxx_wd_timer_hwmod_class = { + .name = "wd_timer", + .sysc = &omap2xxx_wd_timer_sysc, + .pre_shutdown = &omap2_wd_timer_disable, + .reset = &omap2_wd_timer_reset, +}; + +/* + * 'gpio' class + * general purpose io module + */ +static struct omap_hwmod_class_sysconfig omap2xxx_gpio_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +struct omap_hwmod_class omap2xxx_gpio_hwmod_class = { + .name = "gpio", + .sysc = &omap2xxx_gpio_sysc, +}; + +/* + * 'mailbox' class + * mailbox module allowing communication between the on-chip processors + * using a queued mailbox-interrupt mechanism. + */ + +static struct omap_hwmod_class_sysconfig omap2xxx_mailbox_sysc = { + .rev_offs = 0x000, + .sysc_offs = 0x010, + .syss_offs = 0x014, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +struct omap_hwmod_class omap2xxx_mailbox_hwmod_class = { + .name = "mailbox", + .sysc = &omap2xxx_mailbox_sysc, +}; + +/* + * 'mcspi' class + * multichannel serial port interface (mcspi) / master/slave synchronous serial + * bus + */ + +static struct omap_hwmod_class_sysconfig omap2xxx_mcspi_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +struct omap_hwmod_class omap2xxx_mcspi_class = { + .name = "mcspi", + .sysc = &omap2xxx_mcspi_sysc, +}; + +/* + * 'gpmc' class + * general purpose memory controller + */ + +static struct omap_hwmod_class_sysconfig omap2xxx_gpmc_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2xxx_gpmc_hwmod_class = { + .name = "gpmc", + .sysc = &omap2xxx_gpmc_sysc, +}; + +/* + * IP blocks + */ + +/* L3 */ +struct omap_hwmod omap2xxx_l3_main_hwmod = { + .name = "l3_main", + .class = &l3_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* L4 CORE */ +struct omap_hwmod omap2xxx_l4_core_hwmod = { + .name = "l4_core", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* L4 WKUP */ +struct omap_hwmod omap2xxx_l4_wkup_hwmod = { + .name = "l4_wkup", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* MPU */ +struct omap_hwmod omap2xxx_mpu_hwmod = { + .name = "mpu", + .class = &mpu_hwmod_class, + .main_clk = "mpu_ck", +}; + +/* timer3 */ +struct omap_hwmod omap2xxx_timer3_hwmod = { + .name = "timer3", + .main_clk = "gpt3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT3_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer4 */ +struct omap_hwmod omap2xxx_timer4_hwmod = { + .name = "timer4", + .main_clk = "gpt4_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT4_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer5 */ +struct omap_hwmod omap2xxx_timer5_hwmod = { + .name = "timer5", + .main_clk = "gpt5_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT5_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer6 */ +struct omap_hwmod omap2xxx_timer6_hwmod = { + .name = "timer6", + .main_clk = "gpt6_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT6_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer7 */ +struct omap_hwmod omap2xxx_timer7_hwmod = { + .name = "timer7", + .main_clk = "gpt7_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT7_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer8 */ +struct omap_hwmod omap2xxx_timer8_hwmod = { + .name = "timer8", + .main_clk = "gpt8_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT8_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer9 */ +struct omap_hwmod omap2xxx_timer9_hwmod = { + .name = "timer9", + .main_clk = "gpt9_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT9_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer10 */ +struct omap_hwmod omap2xxx_timer10_hwmod = { + .name = "timer10", + .main_clk = "gpt10_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT10_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer11 */ +struct omap_hwmod omap2xxx_timer11_hwmod = { + .name = "timer11", + .main_clk = "gpt11_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT11_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer12 */ +struct omap_hwmod omap2xxx_timer12_hwmod = { + .name = "timer12", + .main_clk = "gpt12_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPT12_SHIFT, + }, + }, + .class = &omap2xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* wd_timer2 */ +struct omap_hwmod omap2xxx_wd_timer2_hwmod = { + .name = "wd_timer2", + .class = &omap2xxx_wd_timer_hwmod_class, + .main_clk = "mpu_wdt_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MPU_WDT_SHIFT, + }, + }, +}; + +/* UART1 */ + +struct omap_hwmod omap2xxx_uart1_hwmod = { + .name = "uart1", + .main_clk = "uart1_fck", + .flags = DEBUG_OMAP2UART1_FLAGS | HWMOD_SWSUP_SIDLE_ACT, + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_EN_UART1_SHIFT, + }, + }, + .class = &omap2_uart_class, +}; + +/* UART2 */ + +struct omap_hwmod omap2xxx_uart2_hwmod = { + .name = "uart2", + .main_clk = "uart2_fck", + .flags = DEBUG_OMAP2UART2_FLAGS | HWMOD_SWSUP_SIDLE_ACT, + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_EN_UART2_SHIFT, + }, + }, + .class = &omap2_uart_class, +}; + +/* UART3 */ + +struct omap_hwmod omap2xxx_uart3_hwmod = { + .name = "uart3", + .main_clk = "uart3_fck", + .flags = DEBUG_OMAP2UART3_FLAGS | HWMOD_SWSUP_SIDLE_ACT, + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 2, + .idlest_idle_bit = OMAP24XX_EN_UART3_SHIFT, + }, + }, + .class = &omap2_uart_class, +}; + +/* dss */ + +static struct omap_hwmod_opt_clk dss_opt_clks[] = { + /* + * The DSS HW needs all DSS clocks enabled during reset. The dss_core + * driver does not use these clocks. + */ + { .role = "tv_clk", .clk = "dss_54m_fck" }, + { .role = "sys_clk", .clk = "dss2_fck" }, +}; + +struct omap_hwmod omap2xxx_dss_core_hwmod = { + .name = "dss_core", + .class = &omap2_dss_hwmod_class, + .main_clk = "dss1_fck", /* instead of dss_fck */ + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + }, + }, + .opt_clks = dss_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_opt_clks), + .flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET, +}; + +struct omap_hwmod omap2xxx_dss_dispc_hwmod = { + .name = "dss_dispc", + .class = &omap2_dispc_hwmod_class, + .main_clk = "dss1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + }, + }, + .flags = HWMOD_NO_IDLEST, + .dev_attr = &omap2_3_dss_dispc_dev_attr, +}; + +static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = { + { .role = "ick", .clk = "dss_ick" }, +}; + +struct omap_hwmod omap2xxx_dss_rfbi_hwmod = { + .name = "dss_rfbi", + .class = &omap2_rfbi_hwmod_class, + .main_clk = "dss1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + }, + }, + .opt_clks = dss_rfbi_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks), + .flags = HWMOD_NO_IDLEST, +}; + +struct omap_hwmod omap2xxx_dss_venc_hwmod = { + .name = "dss_venc", + .class = &omap2_venc_hwmod_class, + .main_clk = "dss_54m_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + }, + }, + .flags = HWMOD_NO_IDLEST, +}; + +/* gpio1 */ +struct omap_hwmod omap2xxx_gpio1_hwmod = { + .name = "gpio1", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpios_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPIOS_SHIFT, + }, + }, + .class = &omap2xxx_gpio_hwmod_class, +}; + +/* gpio2 */ +struct omap_hwmod omap2xxx_gpio2_hwmod = { + .name = "gpio2", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpios_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPIOS_SHIFT, + }, + }, + .class = &omap2xxx_gpio_hwmod_class, +}; + +/* gpio3 */ +struct omap_hwmod omap2xxx_gpio3_hwmod = { + .name = "gpio3", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpios_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPIOS_SHIFT, + }, + }, + .class = &omap2xxx_gpio_hwmod_class, +}; + +/* gpio4 */ +struct omap_hwmod omap2xxx_gpio4_hwmod = { + .name = "gpio4", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpios_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_GPIOS_SHIFT, + }, + }, + .class = &omap2xxx_gpio_hwmod_class, +}; + +/* mcspi1 */ +struct omap_hwmod omap2xxx_mcspi1_hwmod = { + .name = "mcspi1", + .main_clk = "mcspi1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MCSPI1_SHIFT, + }, + }, + .class = &omap2xxx_mcspi_class, +}; + +/* mcspi2 */ +struct omap_hwmod omap2xxx_mcspi2_hwmod = { + .name = "mcspi2", + .main_clk = "mcspi2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP24XX_ST_MCSPI2_SHIFT, + }, + }, + .class = &omap2xxx_mcspi_class, +}; + +/* gpmc */ +struct omap_hwmod omap2xxx_gpmc_hwmod = { + .name = "gpmc", + .class = &omap2xxx_gpmc_hwmod_class, + .main_clk = "gpmc_fck", + /* Skip reset for CONFIG_OMAP_GPMC_DEBUG for bootloader timings */ + .flags = HWMOD_NO_IDLEST | DEBUG_OMAP_GPMC_HWMOD_FLAGS, + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + }, + }, +}; + +/* RNG */ + +static struct omap_hwmod_class_sysconfig omap2_rng_sysc = { + .rev_offs = 0x3c, + .sysc_offs = 0x40, + .syss_offs = 0x44, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2_rng_hwmod_class = { + .name = "rng", + .sysc = &omap2_rng_sysc, +}; + +struct omap_hwmod omap2xxx_rng_hwmod = { + .name = "rng", + .main_clk = "l4_ck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 4, + .idlest_idle_bit = OMAP24XX_ST_RNG_SHIFT, + }, + }, + /* + * XXX The first read from the SYSSTATUS register of the RNG + * after the SYSCONFIG SOFTRESET bit is set triggers an + * imprecise external abort. It's unclear why this happens. + * Until this is analyzed, skip the IP block reset. + */ + .flags = HWMOD_INIT_NO_RESET, + .class = &omap2_rng_hwmod_class, +}; + +/* SHAM */ + +static struct omap_hwmod_class_sysconfig omap2_sham_sysc = { + .rev_offs = 0x5c, + .sysc_offs = 0x60, + .syss_offs = 0x64, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2xxx_sham_class = { + .name = "sham", + .sysc = &omap2_sham_sysc, +}; + +struct omap_hwmod omap2xxx_sham_hwmod = { + .name = "sham", + .main_clk = "l4_ck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 4, + .idlest_idle_bit = OMAP24XX_ST_SHA_SHIFT, + }, + }, + .class = &omap2xxx_sham_class, +}; + +/* AES */ + +static struct omap_hwmod_class_sysconfig omap2_aes_sysc = { + .rev_offs = 0x44, + .sysc_offs = 0x48, + .syss_offs = 0x4c, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap2xxx_aes_class = { + .name = "aes", + .sysc = &omap2_aes_sysc, +}; + +struct omap_hwmod omap2xxx_aes_hwmod = { + .name = "aes", + .main_clk = "l4_ck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 4, + .idlest_idle_bit = OMAP24XX_ST_AES_SHIFT, + }, + }, + .class = &omap2xxx_aes_class, +}; diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c new file mode 100644 index 000000000..5cbdf58ad --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -0,0 +1,2595 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod_3xxx_data.c - hardware modules present on the OMAP3xxx chips + * + * Copyright (C) 2009-2011 Nokia Corporation + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + * + * The data in this file should be completely autogeneratable from + * the TI hardware database or other technical documentation. + * + * XXX these should be marked initdata for multi-OMAP kernels + */ + +#include <linux/platform_data/i2c-omap.h> +#include <linux/power/smartreflex.h> +#include <linux/platform_data/hsmmc-omap.h> + +#include "l3_3xxx.h" +#include "l4_3xxx.h" + +#include "soc.h" +#include "omap_hwmod.h" +#include "omap_hwmod_common_data.h" +#include "prm-regbits-34xx.h" +#include "cm-regbits-34xx.h" + +#include "i2c.h" +#include "wd_timer.h" + +/* + * OMAP3xxx hardware module integration data + * + * All of the data in this section should be autogeneratable from the + * TI hardware database or other technical documentation. Data that + * is driver-specific or driver-kernel integration-specific belongs + * elsewhere. + */ + +#define AM35XX_IPSS_USBOTGSS_BASE 0x5C040000 + +/* + * IP blocks + */ + +/* L3 */ + +static struct omap_hwmod omap3xxx_l3_main_hwmod = { + .name = "l3_main", + .class = &l3_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* L4 CORE */ +static struct omap_hwmod omap3xxx_l4_core_hwmod = { + .name = "l4_core", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* L4 PER */ +static struct omap_hwmod omap3xxx_l4_per_hwmod = { + .name = "l4_per", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* L4 WKUP */ +static struct omap_hwmod omap3xxx_l4_wkup_hwmod = { + .name = "l4_wkup", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* L4 SEC */ +static struct omap_hwmod omap3xxx_l4_sec_hwmod = { + .name = "l4_sec", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* MPU */ + +static struct omap_hwmod omap3xxx_mpu_hwmod = { + .name = "mpu", + .class = &mpu_hwmod_class, + .main_clk = "arm_fck", +}; + +/* IVA2 (IVA2) */ +static struct omap_hwmod_rst_info omap3xxx_iva_resets[] = { + { .name = "logic", .rst_shift = 0, .st_shift = 8 }, + { .name = "seq0", .rst_shift = 1, .st_shift = 9 }, + { .name = "seq1", .rst_shift = 2, .st_shift = 10 }, +}; + +static struct omap_hwmod omap3xxx_iva_hwmod = { + .name = "iva", + .class = &iva_hwmod_class, + .clkdm_name = "iva2_clkdm", + .rst_lines = omap3xxx_iva_resets, + .rst_lines_cnt = ARRAY_SIZE(omap3xxx_iva_resets), + .main_clk = "iva2_ck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_IVA2_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_IVA2_SHIFT, + }, + }, +}; + +/* + * 'debugss' class + * debug and emulation sub system + */ + +static struct omap_hwmod_class omap3xxx_debugss_hwmod_class = { + .name = "debugss", +}; + +/* debugss */ +static struct omap_hwmod omap3xxx_debugss_hwmod = { + .name = "debugss", + .class = &omap3xxx_debugss_hwmod_class, + .clkdm_name = "emu_clkdm", + .main_clk = "emu_src_ck", + .flags = HWMOD_NO_IDLEST, +}; + +/* timer class */ +static struct omap_hwmod_class_sysconfig omap3xxx_timer_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_CLOCKACTIVITY | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_EMUFREE | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_timer_hwmod_class = { + .name = "timer", + .sysc = &omap3xxx_timer_sysc, +}; + +/* timer3 */ +static struct omap_hwmod omap3xxx_timer3_hwmod = { + .name = "timer3", + .main_clk = "gpt3_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT3_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer4 */ +static struct omap_hwmod omap3xxx_timer4_hwmod = { + .name = "timer4", + .main_clk = "gpt4_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT4_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer5 */ +static struct omap_hwmod omap3xxx_timer5_hwmod = { + .name = "timer5", + .main_clk = "gpt5_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT5_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer6 */ +static struct omap_hwmod omap3xxx_timer6_hwmod = { + .name = "timer6", + .main_clk = "gpt6_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT6_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer7 */ +static struct omap_hwmod omap3xxx_timer7_hwmod = { + .name = "timer7", + .main_clk = "gpt7_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT7_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer8 */ +static struct omap_hwmod omap3xxx_timer8_hwmod = { + .name = "timer8", + .main_clk = "gpt8_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT8_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer9 */ +static struct omap_hwmod omap3xxx_timer9_hwmod = { + .name = "timer9", + .main_clk = "gpt9_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT9_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer10 */ +static struct omap_hwmod omap3xxx_timer10_hwmod = { + .name = "timer10", + .main_clk = "gpt10_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT10_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* timer11 */ +static struct omap_hwmod omap3xxx_timer11_hwmod = { + .name = "timer11", + .main_clk = "gpt11_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPT11_SHIFT, + }, + }, + .class = &omap3xxx_timer_hwmod_class, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +/* + * 'wd_timer' class + * 32-bit watchdog upward counter that generates a pulse on the reset pin on + * overflow condition + */ + +static struct omap_hwmod_class_sysconfig omap3xxx_wd_timer_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_EMUFREE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY | + SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +/* I2C common */ +static struct omap_hwmod_class_sysconfig i2c_sysc = { + .rev_offs = 0x00, + .sysc_offs = 0x20, + .syss_offs = 0x10, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_wd_timer_hwmod_class = { + .name = "wd_timer", + .sysc = &omap3xxx_wd_timer_sysc, + .pre_shutdown = &omap2_wd_timer_disable, + .reset = &omap2_wd_timer_reset, +}; + +static struct omap_hwmod omap3xxx_wd_timer2_hwmod = { + .name = "wd_timer2", + .class = &omap3xxx_wd_timer_hwmod_class, + .main_clk = "wdt2_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_WDT2_SHIFT, + }, + }, + /* + * XXX: Use software supervised mode, HW supervised smartidle seems to + * block CORE power domain idle transitions. Maybe a HW bug in wdt2? + */ + .flags = HWMOD_SWSUP_SIDLE, +}; + +/* UART1 */ +static struct omap_hwmod omap3xxx_uart1_hwmod = { + .name = "uart1", + .main_clk = "uart1_fck", + .flags = DEBUG_TI81XXUART1_FLAGS | HWMOD_SWSUP_SIDLE, + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_UART1_SHIFT, + }, + }, + .class = &omap2_uart_class, +}; + +/* UART2 */ +static struct omap_hwmod omap3xxx_uart2_hwmod = { + .name = "uart2", + .main_clk = "uart2_fck", + .flags = DEBUG_TI81XXUART2_FLAGS | HWMOD_SWSUP_SIDLE, + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_UART2_SHIFT, + }, + }, + .class = &omap2_uart_class, +}; + +/* UART3 */ +static struct omap_hwmod omap3xxx_uart3_hwmod = { + .name = "uart3", + .main_clk = "uart3_fck", + .flags = DEBUG_OMAP3UART3_FLAGS | DEBUG_TI81XXUART3_FLAGS | + HWMOD_SWSUP_SIDLE, + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_UART3_SHIFT, + }, + }, + .class = &omap2_uart_class, +}; + +/* UART4 */ + + +static struct omap_hwmod omap36xx_uart4_hwmod = { + .name = "uart4", + .main_clk = "uart4_fck", + .flags = DEBUG_OMAP3UART4_FLAGS | HWMOD_SWSUP_SIDLE, + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3630_EN_UART4_SHIFT, + }, + }, + .class = &omap2_uart_class, +}; + + + +/* + * XXX AM35xx UART4 cannot complete its softreset without uart1_fck or + * uart2_fck being enabled. So we add uart1_fck as an optional clock, + * below, and set the HWMOD_CONTROL_OPT_CLKS_IN_RESET. This really + * should not be needed. The functional clock structure of the AM35xx + * UART4 is extremely unclear and opaque; it is unclear what the role + * of uart1/2_fck is for the UART4. Any clarification from either + * empirical testing or the AM3505/3517 hardware designers would be + * most welcome. + */ +static struct omap_hwmod_opt_clk am35xx_uart4_opt_clks[] = { + { .role = "softreset_uart1_fck", .clk = "uart1_fck" }, +}; + +static struct omap_hwmod am35xx_uart4_hwmod = { + .name = "uart4", + .main_clk = "uart4_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = AM35XX_ST_UART4_SHIFT, + }, + }, + .opt_clks = am35xx_uart4_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(am35xx_uart4_opt_clks), + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .class = &omap2_uart_class, +}; + +static struct omap_hwmod_class i2c_class = { + .name = "i2c", + .sysc = &i2c_sysc, + .reset = &omap_i2c_reset, +}; + +/* dss */ +static struct omap_hwmod_opt_clk dss_opt_clks[] = { + /* + * The DSS HW needs all DSS clocks enabled during reset. The dss_core + * driver does not use these clocks. + */ + { .role = "sys_clk", .clk = "dss2_alwon_fck" }, + { .role = "tv_clk", .clk = "dss_tv_fck" }, + /* required only on OMAP3430 */ + { .role = "tv_dac_clk", .clk = "dss_96m_fck" }, +}; + +static struct omap_hwmod omap3430es1_dss_core_hwmod = { + .name = "dss_core", + .class = &omap2_dss_hwmod_class, + .main_clk = "dss1_alwon_fck", /* instead of dss_fck */ + .prcm = { + .omap2 = { + .module_offs = OMAP3430_DSS_MOD, + .idlest_reg_id = 1, + }, + }, + .opt_clks = dss_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_opt_clks), + .flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET, +}; + +static struct omap_hwmod omap3xxx_dss_core_hwmod = { + .name = "dss_core", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .class = &omap2_dss_hwmod_class, + .main_clk = "dss1_alwon_fck", /* instead of dss_fck */ + .prcm = { + .omap2 = { + .module_offs = OMAP3430_DSS_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430ES2_ST_DSS_IDLE_SHIFT, + }, + }, + .opt_clks = dss_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_opt_clks), +}; + +/* + * 'dispc' class + * display controller + */ + +static struct omap_hwmod_class_sysconfig omap3_dispc_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSC_HAS_ENAWAKEUP), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3_dispc_hwmod_class = { + .name = "dispc", + .sysc = &omap3_dispc_sysc, +}; + +static struct omap_hwmod omap3xxx_dss_dispc_hwmod = { + .name = "dss_dispc", + .class = &omap3_dispc_hwmod_class, + .main_clk = "dss1_alwon_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_DSS_MOD, + }, + }, + .flags = HWMOD_NO_IDLEST, + .dev_attr = &omap2_3_dss_dispc_dev_attr, +}; + +/* + * 'dsi' class + * display serial interface controller + */ + +static struct omap_hwmod_class_sysconfig omap3xxx_dsi_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_dsi_hwmod_class = { + .name = "dsi", + .sysc = &omap3xxx_dsi_sysc, +}; + +/* dss_dsi1 */ +static struct omap_hwmod_opt_clk dss_dsi1_opt_clks[] = { + { .role = "sys_clk", .clk = "dss2_alwon_fck" }, +}; + +static struct omap_hwmod omap3xxx_dss_dsi1_hwmod = { + .name = "dss_dsi1", + .class = &omap3xxx_dsi_hwmod_class, + .main_clk = "dss1_alwon_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_DSS_MOD, + }, + }, + .opt_clks = dss_dsi1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_dsi1_opt_clks), + .flags = HWMOD_NO_IDLEST, +}; + +static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = { + { .role = "ick", .clk = "dss_ick" }, +}; + +static struct omap_hwmod omap3xxx_dss_rfbi_hwmod = { + .name = "dss_rfbi", + .class = &omap2_rfbi_hwmod_class, + .main_clk = "dss1_alwon_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_DSS_MOD, + }, + }, + .opt_clks = dss_rfbi_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks), + .flags = HWMOD_NO_IDLEST, +}; + +static struct omap_hwmod_opt_clk dss_venc_opt_clks[] = { + /* required only on OMAP3430 */ + { .role = "tv_dac_clk", .clk = "dss_96m_fck" }, +}; + +static struct omap_hwmod omap3xxx_dss_venc_hwmod = { + .name = "dss_venc", + .class = &omap2_venc_hwmod_class, + .main_clk = "dss_tv_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_DSS_MOD, + }, + }, + .opt_clks = dss_venc_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_venc_opt_clks), + .flags = HWMOD_NO_IDLEST, +}; + +/* I2C1 */ +static struct omap_hwmod omap3xxx_i2c1_hwmod = { + .name = "i2c1", + .flags = HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT, + .main_clk = "i2c1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_I2C1_SHIFT, + }, + }, + .class = &i2c_class, +}; + +/* I2C2 */ +static struct omap_hwmod omap3xxx_i2c2_hwmod = { + .name = "i2c2", + .flags = HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT, + .main_clk = "i2c2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_I2C2_SHIFT, + }, + }, + .class = &i2c_class, +}; + +/* I2C3 */ +static struct omap_hwmod omap3xxx_i2c3_hwmod = { + .name = "i2c3", + .flags = HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT, + .main_clk = "i2c3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_I2C3_SHIFT, + }, + }, + .class = &i2c_class, +}; + +/* + * 'gpio' class + * general purpose io module + */ + +static struct omap_hwmod_class_sysconfig omap3xxx_gpio_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_gpio_hwmod_class = { + .name = "gpio", + .sysc = &omap3xxx_gpio_sysc, +}; + +/* gpio1 */ +static struct omap_hwmod_opt_clk gpio1_opt_clks[] = { + { .role = "dbclk", .clk = "gpio1_dbck", }, +}; + +static struct omap_hwmod omap3xxx_gpio1_hwmod = { + .name = "gpio1", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpio1_ick", + .opt_clks = gpio1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio1_opt_clks), + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPIO1_SHIFT, + }, + }, + .class = &omap3xxx_gpio_hwmod_class, +}; + +/* gpio2 */ +static struct omap_hwmod_opt_clk gpio2_opt_clks[] = { + { .role = "dbclk", .clk = "gpio2_dbck", }, +}; + +static struct omap_hwmod omap3xxx_gpio2_hwmod = { + .name = "gpio2", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpio2_ick", + .opt_clks = gpio2_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio2_opt_clks), + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPIO2_SHIFT, + }, + }, + .class = &omap3xxx_gpio_hwmod_class, +}; + +/* gpio3 */ +static struct omap_hwmod_opt_clk gpio3_opt_clks[] = { + { .role = "dbclk", .clk = "gpio3_dbck", }, +}; + +static struct omap_hwmod omap3xxx_gpio3_hwmod = { + .name = "gpio3", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpio3_ick", + .opt_clks = gpio3_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio3_opt_clks), + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPIO3_SHIFT, + }, + }, + .class = &omap3xxx_gpio_hwmod_class, +}; + +/* gpio4 */ +static struct omap_hwmod_opt_clk gpio4_opt_clks[] = { + { .role = "dbclk", .clk = "gpio4_dbck", }, +}; + +static struct omap_hwmod omap3xxx_gpio4_hwmod = { + .name = "gpio4", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpio4_ick", + .opt_clks = gpio4_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio4_opt_clks), + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPIO4_SHIFT, + }, + }, + .class = &omap3xxx_gpio_hwmod_class, +}; + +/* gpio5 */ + +static struct omap_hwmod_opt_clk gpio5_opt_clks[] = { + { .role = "dbclk", .clk = "gpio5_dbck", }, +}; + +static struct omap_hwmod omap3xxx_gpio5_hwmod = { + .name = "gpio5", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpio5_ick", + .opt_clks = gpio5_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio5_opt_clks), + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPIO5_SHIFT, + }, + }, + .class = &omap3xxx_gpio_hwmod_class, +}; + +/* gpio6 */ + +static struct omap_hwmod_opt_clk gpio6_opt_clks[] = { + { .role = "dbclk", .clk = "gpio6_dbck", }, +}; + +static struct omap_hwmod omap3xxx_gpio6_hwmod = { + .name = "gpio6", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, + .main_clk = "gpio6_ick", + .opt_clks = gpio6_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio6_opt_clks), + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_GPIO6_SHIFT, + }, + }, + .class = &omap3xxx_gpio_hwmod_class, +}; + +/* + * 'mcbsp' class + * multi channel buffered serial port controller + */ + +static struct omap_hwmod_class_sysconfig omap3xxx_mcbsp_sysc = { + .rev_offs = -ENODEV, + .sysc_offs = 0x008c, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_ENAWAKEUP | + SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_mcbsp_hwmod_class = { + .name = "mcbsp", + .sysc = &omap3xxx_mcbsp_sysc, +}; + +/* McBSP functional clock mapping */ +static struct omap_hwmod_opt_clk mcbsp15_opt_clks[] = { + { .role = "pad_fck", .clk = "mcbsp_clks" }, + { .role = "prcm_fck", .clk = "core_96m_fck" }, +}; + +static struct omap_hwmod_opt_clk mcbsp234_opt_clks[] = { + { .role = "pad_fck", .clk = "mcbsp_clks" }, + { .role = "prcm_fck", .clk = "per_96m_fck" }, +}; + +/* mcbsp1 */ +static struct omap_hwmod omap3xxx_mcbsp1_hwmod = { + .name = "mcbsp1", + .class = &omap3xxx_mcbsp_hwmod_class, + .main_clk = "mcbsp1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCBSP1_SHIFT, + }, + }, + .opt_clks = mcbsp15_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp15_opt_clks), +}; + +/* mcbsp2 */ +static struct omap_hwmod omap3xxx_mcbsp2_hwmod = { + .name = "mcbsp2", + .class = &omap3xxx_mcbsp_hwmod_class, + .main_clk = "mcbsp2_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCBSP2_SHIFT, + }, + }, + .opt_clks = mcbsp234_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp234_opt_clks), +}; + +/* mcbsp3 */ +static struct omap_hwmod omap3xxx_mcbsp3_hwmod = { + .name = "mcbsp3", + .class = &omap3xxx_mcbsp_hwmod_class, + .main_clk = "mcbsp3_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCBSP3_SHIFT, + }, + }, + .opt_clks = mcbsp234_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp234_opt_clks), +}; + +/* mcbsp4 */ +static struct omap_hwmod omap3xxx_mcbsp4_hwmod = { + .name = "mcbsp4", + .class = &omap3xxx_mcbsp_hwmod_class, + .main_clk = "mcbsp4_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_PER_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCBSP4_SHIFT, + }, + }, + .opt_clks = mcbsp234_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp234_opt_clks), +}; + +/* mcbsp5 */ +static struct omap_hwmod omap3xxx_mcbsp5_hwmod = { + .name = "mcbsp5", + .class = &omap3xxx_mcbsp_hwmod_class, + .main_clk = "mcbsp5_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCBSP5_SHIFT, + }, + }, + .opt_clks = mcbsp15_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp15_opt_clks), +}; + +/* 'mcbsp sidetone' class */ +static struct omap_hwmod_class_sysconfig omap3xxx_mcbsp_sidetone_sysc = { + .rev_offs = -ENODEV, + .sysc_offs = 0x0010, + .sysc_flags = SYSC_HAS_AUTOIDLE, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_mcbsp_sidetone_hwmod_class = { + .name = "mcbsp_sidetone", + .sysc = &omap3xxx_mcbsp_sidetone_sysc, +}; + +/* mcbsp2_sidetone */ +static struct omap_hwmod omap3xxx_mcbsp2_sidetone_hwmod = { + .name = "mcbsp2_sidetone", + .class = &omap3xxx_mcbsp_sidetone_hwmod_class, + .main_clk = "mcbsp2_ick", + .flags = HWMOD_NO_IDLEST, +}; + +/* mcbsp3_sidetone */ +static struct omap_hwmod omap3xxx_mcbsp3_sidetone_hwmod = { + .name = "mcbsp3_sidetone", + .class = &omap3xxx_mcbsp_sidetone_hwmod_class, + .main_clk = "mcbsp3_ick", + .flags = HWMOD_NO_IDLEST, +}; + +/* SR common */ +static struct omap_hwmod_class_sysconfig omap34xx_sr_sysc = { + .rev_offs = -ENODEV, + .sysc_offs = 0x24, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_NO_CACHE), + .sysc_fields = &omap34xx_sr_sysc_fields, +}; + +static struct omap_hwmod_class omap34xx_smartreflex_hwmod_class = { + .name = "smartreflex", + .sysc = &omap34xx_sr_sysc, +}; + +static struct omap_hwmod_class_sysconfig omap36xx_sr_sysc = { + .rev_offs = -ENODEV, + .sysc_offs = 0x38, + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_ENAWAKEUP | + SYSC_NO_CACHE), + .sysc_fields = &omap36xx_sr_sysc_fields, +}; + +static struct omap_hwmod_class omap36xx_smartreflex_hwmod_class = { + .name = "smartreflex", + .sysc = &omap36xx_sr_sysc, +}; + +/* SR1 */ +static struct omap_smartreflex_dev_attr sr1_dev_attr = { + .sensor_voltdm_name = "mpu_iva", +}; + + +static struct omap_hwmod omap34xx_sr1_hwmod = { + .name = "smartreflex_mpu_iva", + .class = &omap34xx_smartreflex_hwmod_class, + .main_clk = "sr1_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_SR1_SHIFT, + }, + }, + .dev_attr = &sr1_dev_attr, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +static struct omap_hwmod omap36xx_sr1_hwmod = { + .name = "smartreflex_mpu_iva", + .class = &omap36xx_smartreflex_hwmod_class, + .main_clk = "sr1_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_SR1_SHIFT, + }, + }, + .dev_attr = &sr1_dev_attr, +}; + +/* SR2 */ +static struct omap_smartreflex_dev_attr sr2_dev_attr = { + .sensor_voltdm_name = "core", +}; + + +static struct omap_hwmod omap34xx_sr2_hwmod = { + .name = "smartreflex_core", + .class = &omap34xx_smartreflex_hwmod_class, + .main_clk = "sr2_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_SR2_SHIFT, + }, + }, + .dev_attr = &sr2_dev_attr, + .flags = HWMOD_SET_DEFAULT_CLOCKACT, +}; + +static struct omap_hwmod omap36xx_sr2_hwmod = { + .name = "smartreflex_core", + .class = &omap36xx_smartreflex_hwmod_class, + .main_clk = "sr2_fck", + .prcm = { + .omap2 = { + .module_offs = WKUP_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_EN_SR2_SHIFT, + }, + }, + .dev_attr = &sr2_dev_attr, +}; + +/* + * 'mailbox' class + * mailbox module allowing communication between the on-chip processors + * using a queued mailbox-interrupt mechanism. + */ + +static struct omap_hwmod_class_sysconfig omap3xxx_mailbox_sysc = { + .rev_offs = 0x000, + .sysc_offs = 0x010, + .syss_offs = 0x014, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_mailbox_hwmod_class = { + .name = "mailbox", + .sysc = &omap3xxx_mailbox_sysc, +}; + +static struct omap_hwmod omap3xxx_mailbox_hwmod = { + .name = "mailbox", + .class = &omap3xxx_mailbox_hwmod_class, + .main_clk = "mailboxes_ick", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MAILBOXES_SHIFT, + }, + }, +}; + +/* + * 'mcspi' class + * multichannel serial port interface (mcspi) / master/slave synchronous serial + * bus + */ + +static struct omap_hwmod_class_sysconfig omap34xx_mcspi_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap34xx_mcspi_class = { + .name = "mcspi", + .sysc = &omap34xx_mcspi_sysc, +}; + +/* mcspi1 */ +static struct omap_hwmod omap34xx_mcspi1 = { + .name = "mcspi1", + .main_clk = "mcspi1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCSPI1_SHIFT, + }, + }, + .class = &omap34xx_mcspi_class, +}; + +/* mcspi2 */ +static struct omap_hwmod omap34xx_mcspi2 = { + .name = "mcspi2", + .main_clk = "mcspi2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCSPI2_SHIFT, + }, + }, + .class = &omap34xx_mcspi_class, +}; + +/* mcspi3 */ +static struct omap_hwmod omap34xx_mcspi3 = { + .name = "mcspi3", + .main_clk = "mcspi3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCSPI3_SHIFT, + }, + }, + .class = &omap34xx_mcspi_class, +}; + +/* mcspi4 */ +static struct omap_hwmod omap34xx_mcspi4 = { + .name = "mcspi4", + .main_clk = "mcspi4_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MCSPI4_SHIFT, + }, + }, + .class = &omap34xx_mcspi_class, +}; + +/* MMC/SD/SDIO common */ +static struct omap_hwmod_class_sysconfig omap34xx_mmc_sysc = { + .rev_offs = 0x1fc, + .sysc_offs = 0x10, + .syss_offs = 0x14, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap34xx_mmc_class = { + .name = "mmc", + .sysc = &omap34xx_mmc_sysc, +}; + +/* MMC/SD/SDIO1 */ + + + +static struct omap_hwmod_opt_clk omap34xx_mmc1_opt_clks[] = { + { .role = "dbck", .clk = "omap_32k_fck", }, +}; + +static struct omap_hsmmc_dev_attr mmc1_dev_attr = { + .flags = OMAP_HSMMC_SUPPORTS_DUAL_VOLT, +}; + +/* See 35xx errata 2.1.1.128 in SPRZ278F */ +static struct omap_hsmmc_dev_attr mmc1_pre_es3_dev_attr = { + .flags = (OMAP_HSMMC_SUPPORTS_DUAL_VOLT | + OMAP_HSMMC_BROKEN_MULTIBLOCK_READ), +}; + +static struct omap_hwmod omap3xxx_pre_es3_mmc1_hwmod = { + .name = "mmc1", + .opt_clks = omap34xx_mmc1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(omap34xx_mmc1_opt_clks), + .main_clk = "mmchs1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MMC1_SHIFT, + }, + }, + .dev_attr = &mmc1_pre_es3_dev_attr, + .class = &omap34xx_mmc_class, +}; + +static struct omap_hwmod omap3xxx_es3plus_mmc1_hwmod = { + .name = "mmc1", + .opt_clks = omap34xx_mmc1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(omap34xx_mmc1_opt_clks), + .main_clk = "mmchs1_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MMC1_SHIFT, + }, + }, + .dev_attr = &mmc1_dev_attr, + .class = &omap34xx_mmc_class, +}; + +/* MMC/SD/SDIO2 */ + + + +static struct omap_hwmod_opt_clk omap34xx_mmc2_opt_clks[] = { + { .role = "dbck", .clk = "omap_32k_fck", }, +}; + +/* See 35xx errata 2.1.1.128 in SPRZ278F */ +static struct omap_hsmmc_dev_attr mmc2_pre_es3_dev_attr = { + .flags = OMAP_HSMMC_BROKEN_MULTIBLOCK_READ, +}; + +static struct omap_hwmod omap3xxx_pre_es3_mmc2_hwmod = { + .name = "mmc2", + .opt_clks = omap34xx_mmc2_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(omap34xx_mmc2_opt_clks), + .main_clk = "mmchs2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MMC2_SHIFT, + }, + }, + .dev_attr = &mmc2_pre_es3_dev_attr, + .class = &omap34xx_mmc_class, +}; + +static struct omap_hwmod omap3xxx_es3plus_mmc2_hwmod = { + .name = "mmc2", + .opt_clks = omap34xx_mmc2_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(omap34xx_mmc2_opt_clks), + .main_clk = "mmchs2_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MMC2_SHIFT, + }, + }, + .class = &omap34xx_mmc_class, +}; + +/* MMC/SD/SDIO3 */ + + + +static struct omap_hwmod_opt_clk omap34xx_mmc3_opt_clks[] = { + { .role = "dbck", .clk = "omap_32k_fck", }, +}; + +static struct omap_hwmod omap3xxx_mmc3_hwmod = { + .name = "mmc3", + .opt_clks = omap34xx_mmc3_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(omap34xx_mmc3_opt_clks), + .main_clk = "mmchs3_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_MMC3_SHIFT, + }, + }, + .class = &omap34xx_mmc_class, +}; + +/* + * 'usb_host_hs' class + * high-speed multi-port usb host controller + */ + +static struct omap_hwmod_class_sysconfig omap3xxx_usb_host_hs_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_CLOCKACTIVITY | + SYSC_HAS_SIDLEMODE | SYSC_HAS_ENAWAKEUP | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_usb_host_hs_hwmod_class = { + .name = "usb_host_hs", + .sysc = &omap3xxx_usb_host_hs_sysc, +}; + + +static struct omap_hwmod omap3xxx_usb_host_hs_hwmod = { + .name = "usb_host_hs", + .class = &omap3xxx_usb_host_hs_hwmod_class, + .clkdm_name = "usbhost_clkdm", + .main_clk = "usbhost_48m_fck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430ES2_USBHOST_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430ES2_ST_USBHOST_IDLE_SHIFT, + }, + }, + + /* + * Errata: USBHOST Configured In Smart-Idle Can Lead To a Deadlock + * id: i660 + * + * Description: + * In the following configuration : + * - USBHOST module is set to smart-idle mode + * - PRCM asserts idle_req to the USBHOST module ( This typically + * happens when the system is going to a low power mode : all ports + * have been suspended, the master part of the USBHOST module has + * entered the standby state, and SW has cut the functional clocks) + * - an USBHOST interrupt occurs before the module is able to answer + * idle_ack, typically a remote wakeup IRQ. + * Then the USB HOST module will enter a deadlock situation where it + * is no more accessible nor functional. + * + * Workaround: + * Don't use smart idle; use only force idle, hence HWMOD_SWSUP_SIDLE + */ + + /* + * Errata: USB host EHCI may stall when entering smart-standby mode + * Id: i571 + * + * Description: + * When the USBHOST module is set to smart-standby mode, and when it is + * ready to enter the standby state (i.e. all ports are suspended and + * all attached devices are in suspend mode), then it can wrongly assert + * the Mstandby signal too early while there are still some residual OCP + * transactions ongoing. If this condition occurs, the internal state + * machine may go to an undefined state and the USB link may be stuck + * upon the next resume. + * + * Workaround: + * Don't use smart standby; use only force standby, + * hence HWMOD_SWSUP_MSTANDBY + */ + + .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY, +}; + +/* + * 'usb_tll_hs' class + * usb_tll_hs module is the adapter on the usb_host_hs ports + */ +static struct omap_hwmod_class_sysconfig omap3xxx_usb_tll_hs_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_usb_tll_hs_hwmod_class = { + .name = "usb_tll_hs", + .sysc = &omap3xxx_usb_tll_hs_sysc, +}; + + +static struct omap_hwmod omap3xxx_usb_tll_hs_hwmod = { + .name = "usb_tll_hs", + .class = &omap3xxx_usb_tll_hs_hwmod_class, + .clkdm_name = "core_l4_clkdm", + .main_clk = "usbtll_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 3, + .idlest_idle_bit = OMAP3430ES2_ST_USBTLL_SHIFT, + }, + }, +}; + +static struct omap_hwmod omap3xxx_hdq1w_hwmod = { + .name = "hdq1w", + .main_clk = "hdq_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_HDQ_SHIFT, + }, + }, + .class = &omap2_hdq1w_class, +}; + +/* SAD2D */ +static struct omap_hwmod_rst_info omap3xxx_sad2d_resets[] = { + { .name = "rst_modem_pwron_sw", .rst_shift = 0 }, + { .name = "rst_modem_sw", .rst_shift = 1 }, +}; + +static struct omap_hwmod_class omap3xxx_sad2d_class = { + .name = "sad2d", +}; + +static struct omap_hwmod omap3xxx_sad2d_hwmod = { + .name = "sad2d", + .rst_lines = omap3xxx_sad2d_resets, + .rst_lines_cnt = ARRAY_SIZE(omap3xxx_sad2d_resets), + .main_clk = "sad2d_ick", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_SAD2D_SHIFT, + }, + }, + .class = &omap3xxx_sad2d_class, +}; + +/* + * 'gpmc' class + * general purpose memory controller + */ + +static struct omap_hwmod_class_sysconfig omap3xxx_gpmc_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_gpmc_hwmod_class = { + .name = "gpmc", + .sysc = &omap3xxx_gpmc_sysc, +}; + +static struct omap_hwmod omap3xxx_gpmc_hwmod = { + .name = "gpmc", + .class = &omap3xxx_gpmc_hwmod_class, + .clkdm_name = "core_l3_clkdm", + .main_clk = "gpmc_fck", + /* Skip reset for CONFIG_OMAP_GPMC_DEBUG for bootloader timings */ + .flags = HWMOD_NO_IDLEST | DEBUG_OMAP_GPMC_HWMOD_FLAGS, +}; + +/* + * interfaces + */ + +/* L3 -> L4_CORE interface */ +static struct omap_hwmod_ocp_if omap3xxx_l3_main__l4_core = { + .master = &omap3xxx_l3_main_hwmod, + .slave = &omap3xxx_l4_core_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L3 -> L4_PER interface */ +static struct omap_hwmod_ocp_if omap3xxx_l3_main__l4_per = { + .master = &omap3xxx_l3_main_hwmod, + .slave = &omap3xxx_l4_per_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* MPU -> L3 interface */ +static struct omap_hwmod_ocp_if omap3xxx_mpu__l3_main = { + .master = &omap3xxx_mpu_hwmod, + .slave = &omap3xxx_l3_main_hwmod, + .user = OCP_USER_MPU, +}; + + +/* l3 -> debugss */ +static struct omap_hwmod_ocp_if omap3xxx_l3_main__l4_debugss = { + .master = &omap3xxx_l3_main_hwmod, + .slave = &omap3xxx_debugss_hwmod, + .user = OCP_USER_MPU, +}; + +/* DSS -> l3 */ +static struct omap_hwmod_ocp_if omap3430es1_dss__l3 = { + .master = &omap3430es1_dss_core_hwmod, + .slave = &omap3xxx_l3_main_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod_ocp_if omap3xxx_dss__l3 = { + .master = &omap3xxx_dss_core_hwmod, + .slave = &omap3xxx_l3_main_hwmod, + .fw = { + .omap2 = { + .l3_perm_bit = OMAP3_L3_CORE_FW_INIT_ID_DSS, + .flags = OMAP_FIREWALL_L3, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l3_core -> sad2d interface */ +static struct omap_hwmod_ocp_if omap3xxx_sad2d__l3 = { + .master = &omap3xxx_sad2d_hwmod, + .slave = &omap3xxx_l3_main_hwmod, + .clk = "core_l3_ick", + .user = OCP_USER_MPU, +}; + +/* L4_CORE -> L4_WKUP interface */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__l4_wkup = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_l4_wkup_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> MMC1 interface */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__pre_es3_mmc1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_pre_es3_mmc1_hwmod, + .clk = "mmchs1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4, +}; + +static struct omap_hwmod_ocp_if omap3xxx_l4_core__es3plus_mmc1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_es3plus_mmc1_hwmod, + .clk = "mmchs1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4, +}; + +/* L4 CORE -> MMC2 interface */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__pre_es3_mmc2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_pre_es3_mmc2_hwmod, + .clk = "mmchs2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4, +}; + +static struct omap_hwmod_ocp_if omap3xxx_l4_core__es3plus_mmc2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_es3plus_mmc2_hwmod, + .clk = "mmchs2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4, +}; + +/* L4 CORE -> MMC3 interface */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_core__mmc3 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_mmc3_hwmod, + .clk = "mmchs3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4, +}; + +/* L4 CORE -> UART1 interface */ + +static struct omap_hwmod_ocp_if omap3_l4_core__uart1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_uart1_hwmod, + .clk = "uart1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> UART2 interface */ + +static struct omap_hwmod_ocp_if omap3_l4_core__uart2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_uart2_hwmod, + .clk = "uart2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 PER -> UART3 interface */ + +static struct omap_hwmod_ocp_if omap3_l4_per__uart3 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_uart3_hwmod, + .clk = "uart3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 PER -> UART4 interface */ + +static struct omap_hwmod_ocp_if omap36xx_l4_per__uart4 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap36xx_uart4_hwmod, + .clk = "uart4_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* AM35xx: L4 CORE -> UART4 interface */ + +static struct omap_hwmod_ocp_if am35xx_l4_core__uart4 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &am35xx_uart4_hwmod, + .clk = "uart4_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> I2C1 interface */ +static struct omap_hwmod_ocp_if omap3_l4_core__i2c1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_i2c1_hwmod, + .clk = "i2c1_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_I2C1_REGION, + .l4_prot_group = 7, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> I2C2 interface */ +static struct omap_hwmod_ocp_if omap3_l4_core__i2c2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_i2c2_hwmod, + .clk = "i2c2_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_I2C2_REGION, + .l4_prot_group = 7, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> I2C3 interface */ + +static struct omap_hwmod_ocp_if omap3_l4_core__i2c3 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_i2c3_hwmod, + .clk = "i2c3_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_I2C3_REGION, + .l4_prot_group = 7, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* L4 CORE -> SR1 interface */ +static struct omap_hwmod_ocp_if omap34xx_l4_core__sr1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap34xx_sr1_hwmod, + .clk = "sr_l4_ick", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_ocp_if omap36xx_l4_core__sr1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap36xx_sr1_hwmod, + .clk = "sr_l4_ick", + .user = OCP_USER_MPU, +}; + +/* L4 CORE -> SR2 interface */ + +static struct omap_hwmod_ocp_if omap34xx_l4_core__sr2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap34xx_sr2_hwmod, + .clk = "sr_l4_ick", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_ocp_if omap36xx_l4_core__sr2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap36xx_sr2_hwmod, + .clk = "sr_l4_ick", + .user = OCP_USER_MPU, +}; + +/* L4_WKUP -> L4_SEC interface */ +static struct omap_hwmod_ocp_if omap3xxx_l4_wkup__l4_sec = { + .master = &omap3xxx_l4_wkup_hwmod, + .slave = &omap3xxx_l4_sec_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* IVA2 <- L3 interface */ +static struct omap_hwmod_ocp_if omap3xxx_l3__iva = { + .master = &omap3xxx_l3_main_hwmod, + .slave = &omap3xxx_iva_hwmod, + .clk = "core_l3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_per -> timer3 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__timer3 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_timer3_hwmod, + .clk = "gpt3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> timer4 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__timer4 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_timer4_hwmod, + .clk = "gpt4_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> timer5 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__timer5 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_timer5_hwmod, + .clk = "gpt5_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> timer6 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__timer6 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_timer6_hwmod, + .clk = "gpt6_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> timer7 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__timer7 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_timer7_hwmod, + .clk = "gpt7_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> timer8 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__timer8 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_timer8_hwmod, + .clk = "gpt8_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> timer9 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__timer9 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_timer9_hwmod, + .clk = "gpt9_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer10 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__timer10 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_timer10_hwmod, + .clk = "gpt10_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> timer11 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__timer11 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_timer11_hwmod, + .clk = "gpt11_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> wd_timer2 */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_wkup__wd_timer2 = { + .master = &omap3xxx_l4_wkup_hwmod, + .slave = &omap3xxx_wd_timer2_hwmod, + .clk = "wdt2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss */ +static struct omap_hwmod_ocp_if omap3430es1_l4_core__dss = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3430es1_dss_core_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3ES1_L4_CORE_FW_DSS_CORE_REGION, + .l4_prot_group = OMAP3_L4_CORE_FW_DSS_PROT_GROUP, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_dss_core_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_DSS_CORE_REGION, + .l4_prot_group = OMAP3_L4_CORE_FW_DSS_PROT_GROUP, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss_dispc */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_dispc = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_dss_dispc_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_DSS_DISPC_REGION, + .l4_prot_group = OMAP3_L4_CORE_FW_DSS_PROT_GROUP, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss_dsi1 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_dsi1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_dss_dsi1_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_DSS_DSI_REGION, + .l4_prot_group = OMAP3_L4_CORE_FW_DSS_PROT_GROUP, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss_rfbi */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_rfbi = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_dss_rfbi_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_DSS_RFBI_REGION, + .l4_prot_group = OMAP3_L4_CORE_FW_DSS_PROT_GROUP, + .flags = OMAP_FIREWALL_L4, + }, + }, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> dss_venc */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_venc = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_dss_venc_hwmod, + .clk = "dss_ick", + .fw = { + .omap2 = { + .l4_fw_region = OMAP3_L4_CORE_FW_DSS_VENC_REGION, + .l4_prot_group = OMAP3_L4_CORE_FW_DSS_PROT_GROUP, + .flags = OMAP_FIREWALL_L4, + }, + }, + .flags = OCPIF_SWSUP_IDLE, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_wkup -> gpio1 */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_wkup__gpio1 = { + .master = &omap3xxx_l4_wkup_hwmod, + .slave = &omap3xxx_gpio1_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_per -> gpio2 */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_per__gpio2 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_gpio2_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_per -> gpio3 */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_per__gpio3 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_gpio3_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* + * 'mmu' class + * The memory management unit performs virtual to physical address translation + * for its requestors. + */ + +static struct omap_hwmod_class_sysconfig mmu_sysc = { + .rev_offs = 0x000, + .sysc_offs = 0x010, + .syss_offs = 0x014, + .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_mmu_hwmod_class = { + .name = "mmu", + .sysc = &mmu_sysc, +}; + +/* mmu isp */ +static struct omap_hwmod omap3xxx_mmu_isp_hwmod; + +/* l4_core -> mmu isp */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__mmu_isp = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_mmu_isp_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod omap3xxx_mmu_isp_hwmod = { + .name = "mmu_isp", + .class = &omap3xxx_mmu_hwmod_class, + .main_clk = "cam_ick", + .flags = HWMOD_NO_IDLEST, +}; + +/* mmu iva */ + +static struct omap_hwmod omap3xxx_mmu_iva_hwmod; + +static struct omap_hwmod_rst_info omap3xxx_mmu_iva_resets[] = { + { .name = "mmu", .rst_shift = 1, .st_shift = 9 }, +}; + +/* l3_main -> iva mmu */ +static struct omap_hwmod_ocp_if omap3xxx_l3_main__mmu_iva = { + .master = &omap3xxx_l3_main_hwmod, + .slave = &omap3xxx_mmu_iva_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod omap3xxx_mmu_iva_hwmod = { + .name = "mmu_iva", + .class = &omap3xxx_mmu_hwmod_class, + .clkdm_name = "iva2_clkdm", + .rst_lines = omap3xxx_mmu_iva_resets, + .rst_lines_cnt = ARRAY_SIZE(omap3xxx_mmu_iva_resets), + .main_clk = "iva2_ck", + .prcm = { + .omap2 = { + .module_offs = OMAP3430_IVA2_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_IVA2_SHIFT, + }, + }, + .flags = HWMOD_NO_IDLEST, +}; + +/* l4_per -> gpio4 */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_per__gpio4 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_gpio4_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_per -> gpio5 */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_per__gpio5 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_gpio5_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_per -> gpio6 */ + +static struct omap_hwmod_ocp_if omap3xxx_l4_per__gpio6 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_gpio6_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> mcbsp1 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__mcbsp1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_mcbsp1_hwmod, + .clk = "mcbsp1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> mcbsp2 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__mcbsp2 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_mcbsp2_hwmod, + .clk = "mcbsp2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> mcbsp3 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__mcbsp3 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_mcbsp3_hwmod, + .clk = "mcbsp3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> mcbsp4 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__mcbsp4 = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_mcbsp4_hwmod, + .clk = "mcbsp4_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_core -> mcbsp5 */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__mcbsp5 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_mcbsp5_hwmod, + .clk = "mcbsp5_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +/* l4_per -> mcbsp2_sidetone */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__mcbsp2_sidetone = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_mcbsp2_sidetone_hwmod, + .clk = "mcbsp2_ick", + .user = OCP_USER_MPU, +}; + + +/* l4_per -> mcbsp3_sidetone */ +static struct omap_hwmod_ocp_if omap3xxx_l4_per__mcbsp3_sidetone = { + .master = &omap3xxx_l4_per_hwmod, + .slave = &omap3xxx_mcbsp3_sidetone_hwmod, + .clk = "mcbsp3_ick", + .user = OCP_USER_MPU, +}; + +/* l4_core -> mailbox */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__mailbox = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_mailbox_hwmod, + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> mcspi1 interface */ +static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi1 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap34xx_mcspi1, + .clk = "mcspi1_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> mcspi2 interface */ +static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi2 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap34xx_mcspi2, + .clk = "mcspi2_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> mcspi3 interface */ +static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi3 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap34xx_mcspi3, + .clk = "mcspi3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4 core -> mcspi4 interface */ + +static struct omap_hwmod_ocp_if omap34xx_l4_core__mcspi4 = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap34xx_mcspi4, + .clk = "mcspi4_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod_ocp_if omap3xxx_usb_host_hs__l3_main_2 = { + .master = &omap3xxx_usb_host_hs_hwmod, + .slave = &omap3xxx_l3_main_hwmod, + .clk = "core_l3_ick", + .user = OCP_USER_MPU, +}; + + +static struct omap_hwmod_ocp_if omap3xxx_l4_core__usb_host_hs = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_usb_host_hs_hwmod, + .clk = "usbhost_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + + +static struct omap_hwmod_ocp_if omap3xxx_l4_core__usb_tll_hs = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_usb_tll_hs_hwmod, + .clk = "usbtll_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> hdq1w interface */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__hdq1w = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_hdq1w_hwmod, + .clk = "hdq_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, + .flags = OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE, +}; + +/* am35xx has Davinci MDIO & EMAC */ +static struct omap_hwmod_class am35xx_mdio_class = { + .name = "davinci_mdio", +}; + +static struct omap_hwmod am35xx_mdio_hwmod = { + .name = "davinci_mdio", + .class = &am35xx_mdio_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* + * XXX Should be connected to an IPSS hwmod, not the L3 directly; + * but this will probably require some additional hwmod core support, + * so is left as a future to-do item. + */ +static struct omap_hwmod_ocp_if am35xx_mdio__l3 = { + .master = &am35xx_mdio_hwmod, + .slave = &omap3xxx_l3_main_hwmod, + .clk = "emac_fck", + .user = OCP_USER_MPU, +}; + +/* l4_core -> davinci mdio */ +/* + * XXX Should be connected to an IPSS hwmod, not the L4_CORE directly; + * but this will probably require some additional hwmod core support, + * so is left as a future to-do item. + */ +static struct omap_hwmod_ocp_if am35xx_l4_core__mdio = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &am35xx_mdio_hwmod, + .clk = "emac_fck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class am35xx_emac_class = { + .name = "davinci_emac", +}; + +static struct omap_hwmod am35xx_emac_hwmod = { + .name = "davinci_emac", + .class = &am35xx_emac_class, + /* + * According to Mark Greer, the MPU will not return from WFI + * when the EMAC signals an interrupt. + * https://lore.kernel.org/all/1336770778-23044-3-git-send-email-mgreer@animalcreek.com/ + */ + .flags = (HWMOD_NO_IDLEST | HWMOD_BLOCK_WFI), +}; + +/* l3_core -> davinci emac interface */ +/* + * XXX Should be connected to an IPSS hwmod, not the L3 directly; + * but this will probably require some additional hwmod core support, + * so is left as a future to-do item. + */ +static struct omap_hwmod_ocp_if am35xx_emac__l3 = { + .master = &am35xx_emac_hwmod, + .slave = &omap3xxx_l3_main_hwmod, + .clk = "emac_ick", + .user = OCP_USER_MPU, +}; + +/* l4_core -> davinci emac */ +/* + * XXX Should be connected to an IPSS hwmod, not the L4_CORE directly; + * but this will probably require some additional hwmod core support, + * so is left as a future to-do item. + */ +static struct omap_hwmod_ocp_if am35xx_l4_core__emac = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &am35xx_emac_hwmod, + .clk = "emac_ick", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_ocp_if omap3xxx_l3_main__gpmc = { + .master = &omap3xxx_l3_main_hwmod, + .slave = &omap3xxx_gpmc_hwmod, + .clk = "core_l3_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* l4_core -> SHAM2 (SHA1/MD5) (similar to omap24xx) */ +static struct omap_hwmod_class_sysconfig omap3_sham_sysc = { + .rev_offs = 0x5c, + .sysc_offs = 0x60, + .syss_offs = 0x64, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap3_sham_sysc_fields, +}; + +static struct omap_hwmod_class omap3xxx_sham_class = { + .name = "sham", + .sysc = &omap3_sham_sysc, +}; + + + +static struct omap_hwmod omap3xxx_sham_hwmod = { + .name = "sham", + .main_clk = "sha12_ick", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430_ST_SHA12_SHIFT, + }, + }, + .class = &omap3xxx_sham_class, +}; + + +static struct omap_hwmod_ocp_if omap3xxx_l4_core__sham = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_sham_hwmod, + .clk = "sha12_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +/* + * 'ssi' class + * synchronous serial interface (multichannel and full-duplex serial if) + */ + +static struct omap_hwmod_class_sysconfig omap34xx_ssi_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_AUTOIDLE | SYSC_HAS_MIDLEMODE | + SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class omap3xxx_ssi_hwmod_class = { + .name = "ssi", + .sysc = &omap34xx_ssi_sysc, +}; + +static struct omap_hwmod omap3xxx_ssi_hwmod = { + .name = "ssi", + .class = &omap3xxx_ssi_hwmod_class, + .clkdm_name = "core_l4_clkdm", + .main_clk = "ssi_ssr_fck", + .prcm = { + .omap2 = { + .module_offs = CORE_MOD, + .idlest_reg_id = 1, + .idlest_idle_bit = OMAP3430ES2_ST_SSI_IDLE_SHIFT, + }, + }, +}; + +/* L4 CORE -> SSI */ +static struct omap_hwmod_ocp_if omap3xxx_l4_core__ssi = { + .master = &omap3xxx_l4_core_hwmod, + .slave = &omap3xxx_ssi_hwmod, + .clk = "ssi_ick", + .user = OCP_USER_MPU | OCP_USER_SDMA, +}; + +static struct omap_hwmod_ocp_if *omap3xxx_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l3_main__l4_core, + &omap3xxx_l3_main__l4_per, + &omap3xxx_mpu__l3_main, + &omap3xxx_l3_main__l4_debugss, + &omap3xxx_l4_core__l4_wkup, + &omap3xxx_l4_core__mmc3, + &omap3_l4_core__uart1, + &omap3_l4_core__uart2, + &omap3_l4_per__uart3, + &omap3_l4_core__i2c1, + &omap3_l4_core__i2c2, + &omap3_l4_core__i2c3, + &omap3xxx_l4_wkup__l4_sec, + &omap3xxx_l4_per__timer3, + &omap3xxx_l4_per__timer4, + &omap3xxx_l4_per__timer5, + &omap3xxx_l4_per__timer6, + &omap3xxx_l4_per__timer7, + &omap3xxx_l4_per__timer8, + &omap3xxx_l4_per__timer9, + &omap3xxx_l4_core__timer10, + &omap3xxx_l4_core__timer11, + &omap3xxx_l4_wkup__wd_timer2, + &omap3xxx_l4_wkup__gpio1, + &omap3xxx_l4_per__gpio2, + &omap3xxx_l4_per__gpio3, + &omap3xxx_l4_per__gpio4, + &omap3xxx_l4_per__gpio5, + &omap3xxx_l4_per__gpio6, + &omap3xxx_l4_core__mcbsp1, + &omap3xxx_l4_per__mcbsp2, + &omap3xxx_l4_per__mcbsp3, + &omap3xxx_l4_per__mcbsp4, + &omap3xxx_l4_core__mcbsp5, + &omap3xxx_l4_per__mcbsp2_sidetone, + &omap3xxx_l4_per__mcbsp3_sidetone, + &omap34xx_l4_core__mcspi1, + &omap34xx_l4_core__mcspi2, + &omap34xx_l4_core__mcspi3, + &omap34xx_l4_core__mcspi4, + &omap3xxx_l3_main__gpmc, + NULL, +}; + +/* crypto hwmod links */ +static struct omap_hwmod_ocp_if *omap34xx_sham_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l4_core__sham, + NULL, +}; + +static struct omap_hwmod_ocp_if *omap36xx_sham_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l4_core__sham, + NULL +}; + +/* + * Apparently the SHA/MD5 and AES accelerator IP blocks are + * only present on some AM35xx chips, and no one knows which + * ones. + * See https://lore.kernel.org/all/20130108203853.GB1876@animalcreek.com/ + * So if you need these IP blocks on an AM35xx, try uncommenting + * the following lines. + */ +static struct omap_hwmod_ocp_if *am35xx_sham_hwmod_ocp_ifs[] __initdata = { + /* &omap3xxx_l4_core__sham, */ + NULL +}; + +/* 3430ES1-only hwmod links */ +static struct omap_hwmod_ocp_if *omap3430es1_hwmod_ocp_ifs[] __initdata = { + &omap3430es1_dss__l3, + &omap3430es1_l4_core__dss, + NULL, +}; + +/* 3430ES2+-only hwmod links */ +static struct omap_hwmod_ocp_if *omap3430es2plus_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_dss__l3, + &omap3xxx_l4_core__dss, + &omap3xxx_usb_host_hs__l3_main_2, + &omap3xxx_l4_core__usb_host_hs, + &omap3xxx_l4_core__usb_tll_hs, + NULL, +}; + +/* <= 3430ES3-only hwmod links */ +static struct omap_hwmod_ocp_if *omap3430_pre_es3_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l4_core__pre_es3_mmc1, + &omap3xxx_l4_core__pre_es3_mmc2, + NULL, +}; + +/* 3430ES3+-only hwmod links */ +static struct omap_hwmod_ocp_if *omap3430_es3plus_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l4_core__es3plus_mmc1, + &omap3xxx_l4_core__es3plus_mmc2, + NULL, +}; + +/* 34xx-only hwmod links (all ES revisions) */ +static struct omap_hwmod_ocp_if *omap34xx_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l3__iva, + &omap34xx_l4_core__sr1, + &omap34xx_l4_core__sr2, + &omap3xxx_l4_core__mailbox, + &omap3xxx_l4_core__hdq1w, + &omap3xxx_sad2d__l3, + &omap3xxx_l4_core__mmu_isp, + &omap3xxx_l3_main__mmu_iva, + &omap3xxx_l4_core__ssi, + NULL, +}; + +/* 36xx-only hwmod links (all ES revisions) */ +static struct omap_hwmod_ocp_if *omap36xx_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l3__iva, + &omap36xx_l4_per__uart4, + &omap3xxx_dss__l3, + &omap3xxx_l4_core__dss, + &omap36xx_l4_core__sr1, + &omap36xx_l4_core__sr2, + &omap3xxx_l4_core__mailbox, + &omap3xxx_usb_host_hs__l3_main_2, + &omap3xxx_l4_core__usb_host_hs, + &omap3xxx_l4_core__usb_tll_hs, + &omap3xxx_l4_core__es3plus_mmc1, + &omap3xxx_l4_core__es3plus_mmc2, + &omap3xxx_l4_core__hdq1w, + &omap3xxx_sad2d__l3, + &omap3xxx_l4_core__mmu_isp, + &omap3xxx_l3_main__mmu_iva, + &omap3xxx_l4_core__ssi, + NULL, +}; + +static struct omap_hwmod_ocp_if *am35xx_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_dss__l3, + &omap3xxx_l4_core__dss, + &am35xx_l4_core__uart4, + &omap3xxx_usb_host_hs__l3_main_2, + &omap3xxx_l4_core__usb_host_hs, + &omap3xxx_l4_core__usb_tll_hs, + &omap3xxx_l4_core__es3plus_mmc1, + &omap3xxx_l4_core__es3plus_mmc2, + &omap3xxx_l4_core__hdq1w, + &am35xx_mdio__l3, + &am35xx_l4_core__mdio, + &am35xx_emac__l3, + &am35xx_l4_core__emac, + NULL, +}; + +static struct omap_hwmod_ocp_if *omap3xxx_dss_hwmod_ocp_ifs[] __initdata = { + &omap3xxx_l4_core__dss_dispc, + &omap3xxx_l4_core__dss_dsi1, + &omap3xxx_l4_core__dss_rfbi, + &omap3xxx_l4_core__dss_venc, + NULL, +}; + +/** + * omap3xxx_hwmod_is_hs_ip_block_usable - is a security IP block accessible? + * @bus: struct device_node * for the top-level OMAP DT data + * @dev_name: device name used in the DT file + * + * Determine whether a "secure" IP block @dev_name is usable by Linux. + * There doesn't appear to be a 100% reliable way to determine this, + * so we rely on heuristics. If @bus is null, meaning there's no DT + * data, then we only assume the IP block is accessible if the OMAP is + * fused as a 'general-purpose' SoC. If however DT data is present, + * test to see if the IP block is described in the DT data and set to + * 'status = "okay"'. If so then we assume the ODM has configured the + * OMAP firewalls to allow access to the IP block. + * + * Return: 0 if device named @dev_name is not likely to be accessible, + * or 1 if it is likely to be accessible. + */ +static bool __init omap3xxx_hwmod_is_hs_ip_block_usable(struct device_node *bus, + const char *dev_name) +{ + struct device_node *node; + bool available; + + if (!bus) + return omap_type() == OMAP2_DEVICE_TYPE_GP; + + node = of_get_child_by_name(bus, dev_name); + available = of_device_is_available(node); + of_node_put(node); + + return available; +} + +int __init omap3xxx_hwmod_init(void) +{ + int r; + struct omap_hwmod_ocp_if **h = NULL, **h_sham = NULL; + struct device_node *bus; + unsigned int rev; + + omap_hwmod_init(); + + /* Register hwmod links common to all OMAP3 */ + r = omap_hwmod_register_links(omap3xxx_hwmod_ocp_ifs); + if (r < 0) + return r; + + rev = omap_rev(); + + /* + * Register hwmod links common to individual OMAP3 families, all + * silicon revisions (e.g., 34xx, or AM3505/3517, or 36xx) + * All possible revisions should be included in this conditional. + */ + if (rev == OMAP3430_REV_ES1_0 || rev == OMAP3430_REV_ES2_0 || + rev == OMAP3430_REV_ES2_1 || rev == OMAP3430_REV_ES3_0 || + rev == OMAP3430_REV_ES3_1 || rev == OMAP3430_REV_ES3_1_2) { + h = omap34xx_hwmod_ocp_ifs; + h_sham = omap34xx_sham_hwmod_ocp_ifs; + } else if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) { + h = am35xx_hwmod_ocp_ifs; + h_sham = am35xx_sham_hwmod_ocp_ifs; + } else if (rev == OMAP3630_REV_ES1_0 || rev == OMAP3630_REV_ES1_1 || + rev == OMAP3630_REV_ES1_2) { + h = omap36xx_hwmod_ocp_ifs; + h_sham = omap36xx_sham_hwmod_ocp_ifs; + } else { + WARN(1, "OMAP3 hwmod family init: unknown chip type\n"); + return -EINVAL; + } + + r = omap_hwmod_register_links(h); + if (r < 0) + return r; + + /* + * Register crypto hwmod links only if they are not disabled in DT. + * If DT information is missing, enable them only for GP devices. + */ + + bus = of_find_node_by_name(NULL, "ocp"); + + if (h_sham && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "sham")) { + r = omap_hwmod_register_links(h_sham); + if (r < 0) + goto put_node; + } + + of_node_put(bus); + + /* + * Register hwmod links specific to certain ES levels of a + * particular family of silicon (e.g., 34xx ES1.0) + */ + h = NULL; + if (rev == OMAP3430_REV_ES1_0) { + h = omap3430es1_hwmod_ocp_ifs; + } else if (rev == OMAP3430_REV_ES2_0 || rev == OMAP3430_REV_ES2_1 || + rev == OMAP3430_REV_ES3_0 || rev == OMAP3430_REV_ES3_1 || + rev == OMAP3430_REV_ES3_1_2) { + h = omap3430es2plus_hwmod_ocp_ifs; + } + + if (h) { + r = omap_hwmod_register_links(h); + if (r < 0) + return r; + } + + h = NULL; + if (rev == OMAP3430_REV_ES1_0 || rev == OMAP3430_REV_ES2_0 || + rev == OMAP3430_REV_ES2_1) { + h = omap3430_pre_es3_hwmod_ocp_ifs; + } else if (rev == OMAP3430_REV_ES3_0 || rev == OMAP3430_REV_ES3_1 || + rev == OMAP3430_REV_ES3_1_2) { + h = omap3430_es3plus_hwmod_ocp_ifs; + } + + if (h) + r = omap_hwmod_register_links(h); + if (r < 0) + return r; + + /* + * DSS code presumes that dss_core hwmod is handled first, + * _before_ any other DSS related hwmods so register common + * DSS hwmod links last to ensure that dss_core is already + * registered. Otherwise some change things may happen, for + * ex. if dispc is handled before dss_core and DSS is enabled + * in bootloader DISPC will be reset with outputs enabled + * which sometimes leads to unrecoverable L3 error. XXX The + * long-term fix to this is to ensure hwmods are set up in + * dependency order in the hwmod core code. + */ + r = omap_hwmod_register_links(omap3xxx_dss_hwmod_ocp_ifs); + + return r; + +put_node: + of_node_put(bus); + return r; +} diff --git a/arch/arm/mach-omap2/omap_hwmod_81xx_data.c b/arch/arm/mach-omap2/omap_hwmod_81xx_data.c new file mode 100644 index 000000000..9b5c728fb --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_81xx_data.c @@ -0,0 +1,1261 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * DM81xx hwmod data. + * + * Copyright (C) 2010 Texas Instruments, Inc. - https://www.ti.com/ + * Copyright (C) 2013 SKTB SKiT, http://www.skitlab.ru/ + */ + +#include <linux/types.h> + +#include <linux/platform_data/hsmmc-omap.h> + +#include "omap_hwmod_common_data.h" +#include "cm81xx.h" +#include "ti81xx.h" +#include "wd_timer.h" + +/* + * DM816X hardware modules integration data + * + * Note: This is incomplete and at present, not generated from h/w database. + */ + +/* + * Common alwon .clkctrl_offs from dm814x TRM "Table 2-278. CM_ALWON REGISTERS" + * also dm816x TRM 18.7.17 CM_ALWON device register values minus 0x1400. + */ +#define DM81XX_CM_ALWON_MCASP0_CLKCTRL 0x140 +#define DM81XX_CM_ALWON_MCASP1_CLKCTRL 0x144 +#define DM81XX_CM_ALWON_MCASP2_CLKCTRL 0x148 +#define DM81XX_CM_ALWON_MCBSP_CLKCTRL 0x14c +#define DM81XX_CM_ALWON_UART_0_CLKCTRL 0x150 +#define DM81XX_CM_ALWON_UART_1_CLKCTRL 0x154 +#define DM81XX_CM_ALWON_UART_2_CLKCTRL 0x158 +#define DM81XX_CM_ALWON_GPIO_0_CLKCTRL 0x15c +#define DM81XX_CM_ALWON_GPIO_1_CLKCTRL 0x160 +#define DM81XX_CM_ALWON_I2C_0_CLKCTRL 0x164 +#define DM81XX_CM_ALWON_I2C_1_CLKCTRL 0x168 +#define DM81XX_CM_ALWON_WDTIMER_CLKCTRL 0x18c +#define DM81XX_CM_ALWON_SPI_CLKCTRL 0x190 +#define DM81XX_CM_ALWON_MAILBOX_CLKCTRL 0x194 +#define DM81XX_CM_ALWON_SPINBOX_CLKCTRL 0x198 +#define DM81XX_CM_ALWON_MMUDATA_CLKCTRL 0x19c +#define DM81XX_CM_ALWON_MMUCFG_CLKCTRL 0x1a8 +#define DM81XX_CM_ALWON_CONTROL_CLKCTRL 0x1c4 +#define DM81XX_CM_ALWON_GPMC_CLKCTRL 0x1d0 +#define DM81XX_CM_ALWON_ETHERNET_0_CLKCTRL 0x1d4 +#define DM81XX_CM_ALWON_L3_CLKCTRL 0x1e4 +#define DM81XX_CM_ALWON_L4HS_CLKCTRL 0x1e8 +#define DM81XX_CM_ALWON_L4LS_CLKCTRL 0x1ec +#define DM81XX_CM_ALWON_RTC_CLKCTRL 0x1f0 +#define DM81XX_CM_ALWON_TPCC_CLKCTRL 0x1f4 +#define DM81XX_CM_ALWON_TPTC0_CLKCTRL 0x1f8 +#define DM81XX_CM_ALWON_TPTC1_CLKCTRL 0x1fc +#define DM81XX_CM_ALWON_TPTC2_CLKCTRL 0x200 +#define DM81XX_CM_ALWON_TPTC3_CLKCTRL 0x204 + +/* Registers specific to dm814x */ +#define DM814X_CM_ALWON_MCASP_3_4_5_CLKCTRL 0x16c +#define DM814X_CM_ALWON_ATL_CLKCTRL 0x170 +#define DM814X_CM_ALWON_MLB_CLKCTRL 0x174 +#define DM814X_CM_ALWON_PATA_CLKCTRL 0x178 +#define DM814X_CM_ALWON_UART_3_CLKCTRL 0x180 +#define DM814X_CM_ALWON_UART_4_CLKCTRL 0x184 +#define DM814X_CM_ALWON_UART_5_CLKCTRL 0x188 +#define DM814X_CM_ALWON_OCM_0_CLKCTRL 0x1b4 +#define DM814X_CM_ALWON_VCP_CLKCTRL 0x1b8 +#define DM814X_CM_ALWON_MPU_CLKCTRL 0x1dc +#define DM814X_CM_ALWON_DEBUGSS_CLKCTRL 0x1e0 +#define DM814X_CM_ALWON_DCAN_0_1_CLKCTRL 0x218 +#define DM814X_CM_ALWON_MMCHS_0_CLKCTRL 0x21c +#define DM814X_CM_ALWON_MMCHS_1_CLKCTRL 0x220 +#define DM814X_CM_ALWON_MMCHS_2_CLKCTRL 0x224 +#define DM814X_CM_ALWON_CUST_EFUSE_CLKCTRL 0x228 + +/* Registers specific to dm816x */ +#define DM816X_DM_ALWON_BASE 0x1400 +#define DM816X_CM_ALWON_TIMER_1_CLKCTRL (0x1570 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_TIMER_2_CLKCTRL (0x1574 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_TIMER_3_CLKCTRL (0x1578 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_TIMER_4_CLKCTRL (0x157c - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_TIMER_5_CLKCTRL (0x1580 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_TIMER_6_CLKCTRL (0x1584 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_TIMER_7_CLKCTRL (0x1588 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_SDIO_CLKCTRL (0x15b0 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_OCMC_0_CLKCTRL (0x15b4 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_OCMC_1_CLKCTRL (0x15b8 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_ETHERNET_1_CLKCTRL (0x15d8 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_MPU_CLKCTRL (0x15dc - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_SR_0_CLKCTRL (0x1608 - DM816X_DM_ALWON_BASE) +#define DM816X_CM_ALWON_SR_1_CLKCTRL (0x160c - DM816X_DM_ALWON_BASE) + +/* + * The default .clkctrl_offs field is offset from CM_DEFAULT, that's + * TRM 18.7.6 CM_DEFAULT device register values minus 0x500 + */ +#define DM81XX_CM_DEFAULT_OFFSET 0x500 +#define DM81XX_CM_DEFAULT_USB_CLKCTRL (0x558 - DM81XX_CM_DEFAULT_OFFSET) +#define DM81XX_CM_DEFAULT_SATA_CLKCTRL (0x560 - DM81XX_CM_DEFAULT_OFFSET) + +/* L3 Interconnect entries clocked at 125, 250 and 500MHz */ +static struct omap_hwmod dm81xx_alwon_l3_slow_hwmod = { + .name = "alwon_l3_slow", + .clkdm_name = "alwon_l3s_clkdm", + .class = &l3_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +static struct omap_hwmod dm81xx_default_l3_slow_hwmod = { + .name = "default_l3_slow", + .clkdm_name = "default_l3_slow_clkdm", + .class = &l3_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +static struct omap_hwmod dm81xx_alwon_l3_med_hwmod = { + .name = "l3_med", + .clkdm_name = "alwon_l3_med_clkdm", + .class = &l3_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* + * L4 standard peripherals, see TRM table 1-12 for devices using this. + * See TRM table 1-73 for devices using the 125MHz SYSCLK6 clock. + */ +static struct omap_hwmod dm81xx_l4_ls_hwmod = { + .name = "l4_ls", + .clkdm_name = "alwon_l3s_clkdm", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* + * L4 high-speed peripherals. For devices using this, please see the TRM + * table 1-13. On dm816x, only EMAC, MDIO and SATA use this. See also TRM + * table 1-73 for devices using 250MHz SYSCLK5 clock. + */ +static struct omap_hwmod dm81xx_l4_hs_hwmod = { + .name = "l4_hs", + .clkdm_name = "alwon_l3_med_clkdm", + .class = &l4_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +/* L3 slow -> L4 ls peripheral interface running at 125MHz */ +static struct omap_hwmod_ocp_if dm81xx_alwon_l3_slow__l4_ls = { + .master = &dm81xx_alwon_l3_slow_hwmod, + .slave = &dm81xx_l4_ls_hwmod, + .user = OCP_USER_MPU, +}; + +/* L3 med -> L4 fast peripheral interface running at 250MHz */ +static struct omap_hwmod_ocp_if dm81xx_alwon_l3_slow__l4_hs = { + .master = &dm81xx_alwon_l3_med_hwmod, + .slave = &dm81xx_l4_hs_hwmod, + .user = OCP_USER_MPU, +}; + +/* MPU */ +static struct omap_hwmod dm814x_mpu_hwmod = { + .name = "mpu", + .clkdm_name = "alwon_l3s_clkdm", + .class = &mpu_hwmod_class, + .flags = HWMOD_INIT_NO_IDLE, + .main_clk = "mpu_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM814X_CM_ALWON_MPU_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, +}; + +static struct omap_hwmod_ocp_if dm814x_mpu__alwon_l3_slow = { + .master = &dm814x_mpu_hwmod, + .slave = &dm81xx_alwon_l3_slow_hwmod, + .user = OCP_USER_MPU, +}; + +/* L3 med peripheral interface running at 200MHz */ +static struct omap_hwmod_ocp_if dm814x_mpu__alwon_l3_med = { + .master = &dm814x_mpu_hwmod, + .slave = &dm81xx_alwon_l3_med_hwmod, + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_mpu_hwmod = { + .name = "mpu", + .clkdm_name = "alwon_mpu_clkdm", + .class = &mpu_hwmod_class, + .flags = HWMOD_INIT_NO_IDLE, + .main_clk = "mpu_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_MPU_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, +}; + +static struct omap_hwmod_ocp_if dm816x_mpu__alwon_l3_slow = { + .master = &dm816x_mpu_hwmod, + .slave = &dm81xx_alwon_l3_slow_hwmod, + .user = OCP_USER_MPU, +}; + +/* L3 med peripheral interface running at 250MHz */ +static struct omap_hwmod_ocp_if dm816x_mpu__alwon_l3_med = { + .master = &dm816x_mpu_hwmod, + .slave = &dm81xx_alwon_l3_med_hwmod, + .user = OCP_USER_MPU, +}; + +/* RTC */ +static struct omap_hwmod_class_sysconfig ti81xx_rtc_sysc = { + .rev_offs = 0x74, + .sysc_offs = 0x78, + .sysc_flags = SYSC_HAS_SIDLEMODE, + .idlemodes = SIDLE_FORCE | SIDLE_NO | + SIDLE_SMART | SIDLE_SMART_WKUP, + .sysc_fields = &omap_hwmod_sysc_type3, +}; + +static struct omap_hwmod_class ti81xx_rtc_hwmod_class = { + .name = "rtc", + .sysc = &ti81xx_rtc_sysc, +}; + +static struct omap_hwmod ti81xx_rtc_hwmod = { + .name = "rtc", + .class = &ti81xx_rtc_hwmod_class, + .clkdm_name = "alwon_l3s_clkdm", + .flags = HWMOD_NO_IDLEST, + .main_clk = "sysclk18_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_RTC_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, +}; + +static struct omap_hwmod_ocp_if ti81xx_l4_ls__rtc = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &ti81xx_rtc_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +/* UART common */ +static struct omap_hwmod_class_sysconfig uart_sysc = { + .rev_offs = 0x50, + .sysc_offs = 0x54, + .syss_offs = 0x58, + .sysc_flags = SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + MSTANDBY_SMART_WKUP, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class uart_class = { + .name = "uart", + .sysc = &uart_sysc, +}; + +static struct omap_hwmod dm81xx_uart1_hwmod = { + .name = "uart1", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_UART_0_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &uart_class, + .flags = DEBUG_TI81XXUART1_FLAGS, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__uart1 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_uart1_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm81xx_uart2_hwmod = { + .name = "uart2", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_UART_1_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &uart_class, + .flags = DEBUG_TI81XXUART2_FLAGS, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__uart2 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_uart2_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm81xx_uart3_hwmod = { + .name = "uart3", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_UART_2_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &uart_class, + .flags = DEBUG_TI81XXUART3_FLAGS, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__uart3 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_uart3_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig wd_timer_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x10, + .syss_offs = 0x14, + .sysc_flags = SYSC_HAS_EMUFREE | SYSC_HAS_SOFTRESET | + SYSS_HAS_RESET_STATUS, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class wd_timer_class = { + .name = "wd_timer", + .sysc = &wd_timer_sysc, + .pre_shutdown = &omap2_wd_timer_disable, + .reset = &omap2_wd_timer_reset, +}; + +static struct omap_hwmod dm81xx_wd_timer_hwmod = { + .name = "wd_timer", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk18_ck", + .flags = HWMOD_NO_IDLEST, + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_WDTIMER_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &wd_timer_class, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__wd_timer1 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_wd_timer_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +/* I2C common */ +static struct omap_hwmod_class_sysconfig i2c_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x10, + .syss_offs = 0x90, + .sysc_flags = SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class i2c_class = { + .name = "i2c", + .sysc = &i2c_sysc, +}; + +static struct omap_hwmod dm81xx_i2c1_hwmod = { + .name = "i2c1", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_I2C_0_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &i2c_class, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__i2c1 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_i2c1_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm81xx_i2c2_hwmod = { + .name = "i2c2", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_I2C_1_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &i2c_class, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__i2c2 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_i2c2_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm81xx_elm_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | + SYSS_HAS_RESET_STATUS, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class dm81xx_elm_hwmod_class = { + .name = "elm", + .sysc = &dm81xx_elm_sysc, +}; + +static struct omap_hwmod dm81xx_elm_hwmod = { + .name = "elm", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_elm_hwmod_class, + .main_clk = "sysclk6_ck", +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__elm = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_elm_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm81xx_gpio_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0114, + .sysc_flags = SYSC_HAS_AUTOIDLE | SYSC_HAS_ENAWAKEUP | + SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET | + SYSS_HAS_RESET_STATUS, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + SIDLE_SMART_WKUP, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class dm81xx_gpio_hwmod_class = { + .name = "gpio", + .sysc = &dm81xx_gpio_sysc, +}; + +static struct omap_hwmod_opt_clk gpio1_opt_clks[] = { + { .role = "dbclk", .clk = "sysclk18_ck" }, +}; + +static struct omap_hwmod dm81xx_gpio1_hwmod = { + .name = "gpio1", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_gpio_hwmod_class, + .main_clk = "sysclk6_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_GPIO_0_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .opt_clks = gpio1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio1_opt_clks), +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__gpio1 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_gpio1_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_opt_clk gpio2_opt_clks[] = { + { .role = "dbclk", .clk = "sysclk18_ck" }, +}; + +static struct omap_hwmod dm81xx_gpio2_hwmod = { + .name = "gpio2", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_gpio_hwmod_class, + .main_clk = "sysclk6_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_GPIO_1_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .opt_clks = gpio2_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio2_opt_clks), +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__gpio2 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_gpio2_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_opt_clk gpio3_opt_clks[] = { + { .role = "dbclk", .clk = "sysclk18_ck" }, +}; + +static struct omap_hwmod dm81xx_gpio3_hwmod = { + .name = "gpio3", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_gpio_hwmod_class, + .main_clk = "sysclk6_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_GPIO_1_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .opt_clks = gpio3_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio3_opt_clks), +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__gpio3 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_gpio3_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_opt_clk gpio4_opt_clks[] = { + { .role = "dbclk", .clk = "sysclk18_ck" }, +}; + +static struct omap_hwmod dm81xx_gpio4_hwmod = { + .name = "gpio4", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_gpio_hwmod_class, + .main_clk = "sysclk6_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_GPIO_1_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .opt_clks = gpio4_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(gpio4_opt_clks), +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__gpio4 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_gpio4_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm81xx_gpmc_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x10, + .syss_offs = 0x14, + .sysc_flags = SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class dm81xx_gpmc_hwmod_class = { + .name = "gpmc", + .sysc = &dm81xx_gpmc_sysc, +}; + +static struct omap_hwmod dm81xx_gpmc_hwmod = { + .name = "gpmc", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_gpmc_hwmod_class, + .main_clk = "sysclk6_ck", + /* Skip reset for CONFIG_OMAP_GPMC_DEBUG for bootloader timings */ + .flags = DEBUG_OMAP_GPMC_HWMOD_FLAGS, + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_GPMC_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, +}; + +static struct omap_hwmod_ocp_if dm81xx_alwon_l3_slow__gpmc = { + .master = &dm81xx_alwon_l3_slow_hwmod, + .slave = &dm81xx_gpmc_hwmod, + .user = OCP_USER_MPU, +}; + +/* USB needs udelay 1 after reset at least on hp t410, use 2 for margin */ +static struct omap_hwmod_class_sysconfig dm81xx_usbhsotg_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x10, + .srst_udelay = 2, + .sysc_flags = SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE | + SYSC_HAS_SOFTRESET, + .idlemodes = SIDLE_SMART | MSTANDBY_FORCE | MSTANDBY_SMART, + .sysc_fields = &omap_hwmod_sysc_type2, +}; + +static struct omap_hwmod_class dm81xx_usbotg_class = { + .name = "usbotg", + .sysc = &dm81xx_usbhsotg_sysc, +}; + +static struct omap_hwmod dm814x_usbss_hwmod = { + .name = "usb_otg_hs", + .clkdm_name = "default_l3_slow_clkdm", + .main_clk = "pll260dcoclkldo", /* 481c5260.adpll.dcoclkldo */ + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_DEFAULT_USB_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm81xx_usbotg_class, +}; + +static struct omap_hwmod_ocp_if dm814x_default_l3_slow__usbss = { + .master = &dm81xx_default_l3_slow_hwmod, + .slave = &dm814x_usbss_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_usbss_hwmod = { + .name = "usb_otg_hs", + .clkdm_name = "default_l3_slow_clkdm", + .main_clk = "sysclk6_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_DEFAULT_USB_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm81xx_usbotg_class, +}; + +static struct omap_hwmod_ocp_if dm816x_default_l3_slow__usbss = { + .master = &dm81xx_default_l3_slow_hwmod, + .slave = &dm816x_usbss_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm816x_timer_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | + SIDLE_SMART_WKUP, + .sysc_fields = &omap_hwmod_sysc_type2, +}; + +static struct omap_hwmod_class dm816x_timer_hwmod_class = { + .name = "timer", + .sysc = &dm816x_timer_sysc, +}; + +static struct omap_hwmod dm816x_timer3_hwmod = { + .name = "timer3", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "timer3_fck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_TIMER_3_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_timer_hwmod_class, +}; + +static struct omap_hwmod_ocp_if dm816x_l4_ls__timer3 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm816x_timer3_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_timer4_hwmod = { + .name = "timer4", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "timer4_fck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_TIMER_4_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_timer_hwmod_class, +}; + +static struct omap_hwmod_ocp_if dm816x_l4_ls__timer4 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm816x_timer4_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_timer5_hwmod = { + .name = "timer5", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "timer5_fck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_TIMER_5_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_timer_hwmod_class, +}; + +static struct omap_hwmod_ocp_if dm816x_l4_ls__timer5 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm816x_timer5_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_timer6_hwmod = { + .name = "timer6", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "timer6_fck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_TIMER_6_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_timer_hwmod_class, +}; + +static struct omap_hwmod_ocp_if dm816x_l4_ls__timer6 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm816x_timer6_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_timer7_hwmod = { + .name = "timer7", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "timer7_fck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_TIMER_7_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_timer_hwmod_class, +}; + +static struct omap_hwmod_ocp_if dm816x_l4_ls__timer7 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm816x_timer7_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +/* EMAC Ethernet */ +static struct omap_hwmod_class_sysconfig dm816x_emac_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x4, + .sysc_flags = SYSC_HAS_SOFTRESET, + .sysc_fields = &omap_hwmod_sysc_type2, +}; + +static struct omap_hwmod_class dm816x_emac_hwmod_class = { + .name = "emac", + .sysc = &dm816x_emac_sysc, +}; + +/* + * On dm816x the MDIO is within EMAC0. As the MDIO driver is a separate + * driver probed before EMAC0, we let MDIO do the clock idling. + */ +static struct omap_hwmod dm816x_emac0_hwmod = { + .name = "emac0", + .clkdm_name = "alwon_ethernet_clkdm", + .class = &dm816x_emac_hwmod_class, + .flags = HWMOD_NO_IDLEST, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_hs__emac0 = { + .master = &dm81xx_l4_hs_hwmod, + .slave = &dm816x_emac0_hwmod, + .clk = "sysclk5_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class dm81xx_mdio_hwmod_class = { + .name = "davinci_mdio", + .sysc = &dm816x_emac_sysc, +}; + +static struct omap_hwmod dm81xx_emac0_mdio_hwmod = { + .name = "davinci_mdio", + .class = &dm81xx_mdio_hwmod_class, + .clkdm_name = "alwon_ethernet_clkdm", + .main_clk = "sysclk24_ck", + .flags = HWMOD_NO_IDLEST, + /* + * REVISIT: This should be moved to the emac0_hwmod + * once we have a better way to handle device slaves. + */ + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_ETHERNET_0_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, +}; + +static struct omap_hwmod_ocp_if dm81xx_emac0__mdio = { + .master = &dm81xx_l4_hs_hwmod, + .slave = &dm81xx_emac0_mdio_hwmod, + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_emac1_hwmod = { + .name = "emac1", + .clkdm_name = "alwon_ethernet_clkdm", + .main_clk = "sysclk24_ck", + .flags = HWMOD_NO_IDLEST, + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_ETHERNET_1_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_emac_hwmod_class, +}; + +static struct omap_hwmod_ocp_if dm816x_l4_hs__emac1 = { + .master = &dm81xx_l4_hs_hwmod, + .slave = &dm816x_emac1_hwmod, + .clk = "sysclk5_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm81xx_sata_sysc = { + .rev_offs = 0x00fc, + .sysc_offs = 0x1100, + .sysc_flags = SYSC_HAS_SIDLEMODE, + .idlemodes = SIDLE_FORCE, + .sysc_fields = &omap_hwmod_sysc_type3, +}; + +static struct omap_hwmod_class dm81xx_sata_hwmod_class = { + .name = "sata", + .sysc = &dm81xx_sata_sysc, +}; + +static struct omap_hwmod dm81xx_sata_hwmod = { + .name = "sata", + .clkdm_name = "default_clkdm", + .flags = HWMOD_NO_IDLEST, + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_DEFAULT_SATA_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm81xx_sata_hwmod_class, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_hs__sata = { + .master = &dm81xx_l4_hs_hwmod, + .slave = &dm81xx_sata_hwmod, + .clk = "sysclk5_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm81xx_mmc_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x110, + .syss_offs = 0x114, + .sysc_flags = SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class dm81xx_mmc_class = { + .name = "mmc", + .sysc = &dm81xx_mmc_sysc, +}; + +static struct omap_hwmod_opt_clk dm81xx_mmc_opt_clks[] = { + { .role = "dbck", .clk = "sysclk18_ck", }, +}; + +static struct omap_hsmmc_dev_attr mmc_dev_attr = { +}; + +static struct omap_hwmod dm814x_mmc1_hwmod = { + .name = "mmc1", + .clkdm_name = "alwon_l3s_clkdm", + .opt_clks = dm81xx_mmc_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dm81xx_mmc_opt_clks), + .main_clk = "sysclk8_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM814X_CM_ALWON_MMCHS_0_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .dev_attr = &mmc_dev_attr, + .class = &dm81xx_mmc_class, +}; + +static struct omap_hwmod_ocp_if dm814x_l4_ls__mmc1 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm814x_mmc1_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, + .flags = OMAP_FIREWALL_L4 +}; + +static struct omap_hwmod dm814x_mmc2_hwmod = { + .name = "mmc2", + .clkdm_name = "alwon_l3s_clkdm", + .opt_clks = dm81xx_mmc_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dm81xx_mmc_opt_clks), + .main_clk = "sysclk8_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM814X_CM_ALWON_MMCHS_1_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .dev_attr = &mmc_dev_attr, + .class = &dm81xx_mmc_class, +}; + +static struct omap_hwmod_ocp_if dm814x_l4_ls__mmc2 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm814x_mmc2_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, + .flags = OMAP_FIREWALL_L4 +}; + +static struct omap_hwmod dm814x_mmc3_hwmod = { + .name = "mmc3", + .clkdm_name = "alwon_l3_med_clkdm", + .opt_clks = dm81xx_mmc_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dm81xx_mmc_opt_clks), + .main_clk = "sysclk8_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM814X_CM_ALWON_MMCHS_2_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .dev_attr = &mmc_dev_attr, + .class = &dm81xx_mmc_class, +}; + +static struct omap_hwmod_ocp_if dm814x_alwon_l3_med__mmc3 = { + .master = &dm81xx_alwon_l3_med_hwmod, + .slave = &dm814x_mmc3_hwmod, + .clk = "sysclk4_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod dm816x_mmc1_hwmod = { + .name = "mmc1", + .clkdm_name = "alwon_l3s_clkdm", + .opt_clks = dm81xx_mmc_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dm81xx_mmc_opt_clks), + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM816X_CM_ALWON_SDIO_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .dev_attr = &mmc_dev_attr, + .class = &dm81xx_mmc_class, +}; + +static struct omap_hwmod_ocp_if dm816x_l4_ls__mmc1 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm816x_mmc1_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, + .flags = OMAP_FIREWALL_L4 +}; + +static struct omap_hwmod_class_sysconfig dm816x_mcspi_sysc = { + .rev_offs = 0x0, + .sysc_offs = 0x110, + .syss_offs = 0x114, + .sysc_flags = SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class dm816x_mcspi_class = { + .name = "mcspi", + .sysc = &dm816x_mcspi_sysc, +}; + +static struct omap_hwmod dm81xx_mcspi1_hwmod = { + .name = "mcspi1", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_SPI_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_mcspi_class, +}; + +static struct omap_hwmod dm81xx_mcspi2_hwmod = { + .name = "mcspi2", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_SPI_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_mcspi_class, +}; + +static struct omap_hwmod dm81xx_mcspi3_hwmod = { + .name = "mcspi3", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_SPI_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_mcspi_class, +}; + +static struct omap_hwmod dm81xx_mcspi4_hwmod = { + .name = "mcspi4", + .clkdm_name = "alwon_l3s_clkdm", + .main_clk = "sysclk10_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_SPI_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, + .class = &dm816x_mcspi_class, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__mcspi1 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_mcspi1_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__mcspi2 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_mcspi2_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__mcspi3 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_mcspi3_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__mcspi4 = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_mcspi4_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm81xx_mailbox_sysc = { + .rev_offs = 0x000, + .sysc_offs = 0x010, + .syss_offs = 0x014, + .sysc_flags = SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class dm81xx_mailbox_hwmod_class = { + .name = "mailbox", + .sysc = &dm81xx_mailbox_sysc, +}; + +static struct omap_hwmod dm81xx_mailbox_hwmod = { + .name = "mailbox", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_mailbox_hwmod_class, + .main_clk = "sysclk6_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_MAILBOX_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__mailbox = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_mailbox_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +static struct omap_hwmod_class_sysconfig dm81xx_spinbox_sysc = { + .rev_offs = 0x000, + .sysc_offs = 0x010, + .syss_offs = 0x014, + .sysc_flags = SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE, + .idlemodes = SIDLE_FORCE | SIDLE_NO | SIDLE_SMART, + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +static struct omap_hwmod_class dm81xx_spinbox_hwmod_class = { + .name = "spinbox", + .sysc = &dm81xx_spinbox_sysc, +}; + +static struct omap_hwmod dm81xx_spinbox_hwmod = { + .name = "spinbox", + .clkdm_name = "alwon_l3s_clkdm", + .class = &dm81xx_spinbox_hwmod_class, + .main_clk = "sysclk6_ck", + .prcm = { + .omap4 = { + .clkctrl_offs = DM81XX_CM_ALWON_SPINBOX_CLKCTRL, + .modulemode = MODULEMODE_SWCTRL, + }, + }, +}; + +static struct omap_hwmod_ocp_if dm81xx_l4_ls__spinbox = { + .master = &dm81xx_l4_ls_hwmod, + .slave = &dm81xx_spinbox_hwmod, + .clk = "sysclk6_ck", + .user = OCP_USER_MPU, +}; + +/* + * REVISIT: Test and enable the following once clocks work: + * dm81xx_l4_ls__mailbox + * + * Also note that some devices share a single clkctrl_offs.. + * For example, i2c1 and 3 share one, and i2c2 and 4 share one. + */ +static struct omap_hwmod_ocp_if *dm814x_hwmod_ocp_ifs[] __initdata = { + &dm814x_mpu__alwon_l3_slow, + &dm814x_mpu__alwon_l3_med, + &dm81xx_alwon_l3_slow__l4_ls, + &dm81xx_alwon_l3_slow__l4_hs, + &dm81xx_l4_ls__uart1, + &dm81xx_l4_ls__uart2, + &dm81xx_l4_ls__uart3, + &dm81xx_l4_ls__wd_timer1, + &dm81xx_l4_ls__i2c1, + &dm81xx_l4_ls__i2c2, + &dm81xx_l4_ls__gpio1, + &dm81xx_l4_ls__gpio2, + &dm81xx_l4_ls__gpio3, + &dm81xx_l4_ls__gpio4, + &dm81xx_l4_ls__elm, + &dm81xx_l4_ls__mcspi1, + &dm81xx_l4_ls__mcspi2, + &dm81xx_l4_ls__mcspi3, + &dm81xx_l4_ls__mcspi4, + &dm814x_l4_ls__mmc1, + &dm814x_l4_ls__mmc2, + &ti81xx_l4_ls__rtc, + &dm81xx_alwon_l3_slow__gpmc, + &dm814x_default_l3_slow__usbss, + &dm814x_alwon_l3_med__mmc3, + NULL, +}; + +int __init dm814x_hwmod_init(void) +{ + omap_hwmod_init(); + return omap_hwmod_register_links(dm814x_hwmod_ocp_ifs); +} + +static struct omap_hwmod_ocp_if *dm816x_hwmod_ocp_ifs[] __initdata = { + &dm816x_mpu__alwon_l3_slow, + &dm816x_mpu__alwon_l3_med, + &dm81xx_alwon_l3_slow__l4_ls, + &dm81xx_alwon_l3_slow__l4_hs, + &dm81xx_l4_ls__uart1, + &dm81xx_l4_ls__uart2, + &dm81xx_l4_ls__uart3, + &dm81xx_l4_ls__wd_timer1, + &dm81xx_l4_ls__i2c1, + &dm81xx_l4_ls__i2c2, + &dm81xx_l4_ls__gpio1, + &dm81xx_l4_ls__gpio2, + &dm81xx_l4_ls__elm, + &ti81xx_l4_ls__rtc, + &dm816x_l4_ls__mmc1, + &dm816x_l4_ls__timer3, + &dm816x_l4_ls__timer4, + &dm816x_l4_ls__timer5, + &dm816x_l4_ls__timer6, + &dm816x_l4_ls__timer7, + &dm81xx_l4_ls__mcspi1, + &dm81xx_l4_ls__mailbox, + &dm81xx_l4_ls__spinbox, + &dm81xx_l4_hs__emac0, + &dm81xx_emac0__mdio, + &dm816x_l4_hs__emac1, + &dm81xx_l4_hs__sata, + &dm81xx_alwon_l3_slow__gpmc, + &dm816x_default_l3_slow__usbss, + NULL, +}; + +int __init dm816x_hwmod_init(void) +{ + omap_hwmod_init(); + return omap_hwmod_register_links(dm816x_hwmod_ocp_ifs); +} diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.c b/arch/arm/mach-omap2/omap_hwmod_common_data.c new file mode 100644 index 000000000..439232233 --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_common_data.c @@ -0,0 +1,96 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod common data structures + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Thara Gopinath <thara@ti.com> + * Benoît Cousson + * + * Copyright (C) 2010 Nokia Corporation + * Paul Walmsley + * + * This data/structures are to be used while defining OMAP on-chip module + * data and their integration with other OMAP modules and Linux. + */ + +#include <linux/types.h> +#include <linux/platform_data/ti-sysc.h> + +#include "omap_hwmod.h" + +#include "omap_hwmod_common_data.h" + +/* + * struct omap_hwmod_sysc_type1 - TYPE1 sysconfig scheme. + * + * To be used by hwmod structure to specify the sysconfig offsets + * if the device ip is compliant with the original PRCM protocol + * defined for OMAP2420. + */ +struct sysc_regbits omap_hwmod_sysc_type1 = { + .midle_shift = SYSC_TYPE1_MIDLEMODE_SHIFT, + .clkact_shift = SYSC_TYPE1_CLOCKACTIVITY_SHIFT, + .sidle_shift = SYSC_TYPE1_SIDLEMODE_SHIFT, + .enwkup_shift = SYSC_TYPE1_ENAWAKEUP_SHIFT, + .srst_shift = SYSC_TYPE1_SOFTRESET_SHIFT, + .autoidle_shift = SYSC_TYPE1_AUTOIDLE_SHIFT, +}; + +/* + * struct omap_hwmod_sysc_type2 - TYPE2 sysconfig scheme. + * + * To be used by hwmod structure to specify the sysconfig offsets if the + * device ip is compliant with the new PRCM protocol defined for new + * OMAP4 IPs. + */ +struct sysc_regbits omap_hwmod_sysc_type2 = { + .midle_shift = SYSC_TYPE2_MIDLEMODE_SHIFT, + .sidle_shift = SYSC_TYPE2_SIDLEMODE_SHIFT, + .srst_shift = SYSC_TYPE2_SOFTRESET_SHIFT, + .dmadisable_shift = SYSC_TYPE2_DMADISABLE_SHIFT, +}; + +/* + * struct omap_hwmod_sysc_type3 - TYPE3 sysconfig scheme. + * Used by some IPs on AM33xx + */ +struct sysc_regbits omap_hwmod_sysc_type3 = { + .midle_shift = SYSC_TYPE3_MIDLEMODE_SHIFT, + .sidle_shift = SYSC_TYPE3_SIDLEMODE_SHIFT, +}; + +struct omap_dss_dispc_dev_attr omap2_3_dss_dispc_dev_attr = { + .manager_count = 2, + .has_framedonetv_irq = 0 +}; + +struct sysc_regbits omap34xx_sr_sysc_fields = { + .clkact_shift = 20, +}; + +struct sysc_regbits omap36xx_sr_sysc_fields = { + .sidle_shift = 24, + .enwkup_shift = 26, +}; + +struct sysc_regbits omap3_sham_sysc_fields = { + .sidle_shift = 4, + .srst_shift = 1, + .autoidle_shift = 0, +}; + +struct sysc_regbits omap3xxx_aes_sysc_fields = { + .sidle_shift = 6, + .srst_shift = 1, + .autoidle_shift = 0, +}; + +struct sysc_regbits omap_hwmod_sysc_type_mcasp = { + .sidle_shift = 0, +}; + +struct sysc_regbits omap_hwmod_sysc_type_usb_host_fs = { + .midle_shift = 4, + .sidle_shift = 2, + .srst_shift = 1, +}; diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.h b/arch/arm/mach-omap2/omap_hwmod_common_data.h new file mode 100644 index 000000000..69dddc53e --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_common_data.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * omap_hwmod_common_data.h - OMAP hwmod common macros and declarations + * + * Copyright (C) 2010-2011 Nokia Corporation + * Copyright (C) 2010-2012 Texas Instruments, Inc. + * Paul Walmsley + * Benoît Cousson + */ +#ifndef __ARCH_ARM_MACH_OMAP2_OMAP_HWMOD_COMMON_DATA_H +#define __ARCH_ARM_MACH_OMAP2_OMAP_HWMOD_COMMON_DATA_H + +#include "omap_hwmod.h" + +#include "common.h" +#include "display.h" + +/* Common IP block data across OMAP2xxx */ +extern struct omap_hwmod omap2xxx_l3_main_hwmod; +extern struct omap_hwmod omap2xxx_l4_core_hwmod; +extern struct omap_hwmod omap2xxx_l4_wkup_hwmod; +extern struct omap_hwmod omap2xxx_mpu_hwmod; +extern struct omap_hwmod omap2xxx_timer3_hwmod; +extern struct omap_hwmod omap2xxx_timer4_hwmod; +extern struct omap_hwmod omap2xxx_timer5_hwmod; +extern struct omap_hwmod omap2xxx_timer6_hwmod; +extern struct omap_hwmod omap2xxx_timer7_hwmod; +extern struct omap_hwmod omap2xxx_timer8_hwmod; +extern struct omap_hwmod omap2xxx_timer9_hwmod; +extern struct omap_hwmod omap2xxx_timer10_hwmod; +extern struct omap_hwmod omap2xxx_timer11_hwmod; +extern struct omap_hwmod omap2xxx_timer12_hwmod; +extern struct omap_hwmod omap2xxx_wd_timer2_hwmod; +extern struct omap_hwmod omap2xxx_uart1_hwmod; +extern struct omap_hwmod omap2xxx_uart2_hwmod; +extern struct omap_hwmod omap2xxx_uart3_hwmod; +extern struct omap_hwmod omap2xxx_dss_core_hwmod; +extern struct omap_hwmod omap2xxx_dss_dispc_hwmod; +extern struct omap_hwmod omap2xxx_dss_rfbi_hwmod; +extern struct omap_hwmod omap2xxx_dss_venc_hwmod; +extern struct omap_hwmod omap2xxx_gpio1_hwmod; +extern struct omap_hwmod omap2xxx_gpio2_hwmod; +extern struct omap_hwmod omap2xxx_gpio3_hwmod; +extern struct omap_hwmod omap2xxx_gpio4_hwmod; +extern struct omap_hwmod omap2xxx_mcspi1_hwmod; +extern struct omap_hwmod omap2xxx_mcspi2_hwmod; +extern struct omap_hwmod omap2xxx_gpmc_hwmod; +extern struct omap_hwmod omap2xxx_rng_hwmod; +extern struct omap_hwmod omap2xxx_sham_hwmod; +extern struct omap_hwmod omap2xxx_aes_hwmod; + +/* Common interface data across OMAP2xxx */ +extern struct omap_hwmod_ocp_if omap2xxx_l3_main__l4_core; +extern struct omap_hwmod_ocp_if omap2xxx_mpu__l3_main; +extern struct omap_hwmod_ocp_if omap2xxx_dss__l3; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__l4_wkup; +extern struct omap_hwmod_ocp_if omap2_l4_core__uart1; +extern struct omap_hwmod_ocp_if omap2_l4_core__uart2; +extern struct omap_hwmod_ocp_if omap2_l4_core__uart3; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__mcspi1; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__mcspi2; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer3; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer4; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer5; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer6; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer7; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer8; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer9; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer10; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer11; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__timer12; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__dss; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__dss_dispc; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__dss_rfbi; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__dss_venc; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__rng; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__sham; +extern struct omap_hwmod_ocp_if omap2xxx_l4_core__aes; + +/* OMAP hwmod classes - forward declarations */ +extern struct omap_hwmod_class l3_hwmod_class; +extern struct omap_hwmod_class l4_hwmod_class; +extern struct omap_hwmod_class mpu_hwmod_class; +extern struct omap_hwmod_class iva_hwmod_class; +extern struct omap_hwmod_class omap2_uart_class; +extern struct omap_hwmod_class omap2_dss_hwmod_class; +extern struct omap_hwmod_class omap2_rfbi_hwmod_class; +extern struct omap_hwmod_class omap2_venc_hwmod_class; +extern struct omap_hwmod_class omap2_hdq1w_class; + +extern struct omap_hwmod_class omap2xxx_gpio_hwmod_class; +extern struct omap_hwmod_class omap2xxx_mailbox_hwmod_class; +extern struct omap_hwmod_class omap2xxx_mcspi_class; + +extern struct omap_dss_dispc_dev_attr omap2_3_dss_dispc_dev_attr; + +#endif diff --git a/arch/arm/mach-omap2/omap_hwmod_common_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_common_ipblock_data.c new file mode 100644 index 000000000..39ca491cb --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_common_ipblock_data.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * omap_hwmod_common_ipblock_data.c - common IP block data for OMAP2+ + * + * Copyright (C) 2011 Nokia Corporation + * Copyright (C) 2012 Texas Instruments, Inc. + * Paul Walmsley + */ + +#include "omap_hwmod.h" +#include "omap_hwmod_common_data.h" + +/* + * 'dss' class + * display sub-system + */ + +static struct omap_hwmod_class_sysconfig omap2_dss_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +struct omap_hwmod_class omap2_dss_hwmod_class = { + .name = "dss", + .sysc = &omap2_dss_sysc, + .reset = omap_dss_reset, +}; + +/* + * 'rfbi' class + * remote frame buffer interface + */ + +static struct omap_hwmod_class_sysconfig omap2_rfbi_sysc = { + .rev_offs = 0x0000, + .sysc_offs = 0x0010, + .syss_offs = 0x0014, + .sysc_flags = (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET | + SYSC_HAS_AUTOIDLE), + .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART), + .sysc_fields = &omap_hwmod_sysc_type1, +}; + +struct omap_hwmod_class omap2_rfbi_hwmod_class = { + .name = "rfbi", + .sysc = &omap2_rfbi_sysc, +}; + diff --git a/arch/arm/mach-omap2/omap_opp_data.h b/arch/arm/mach-omap2/omap_opp_data.h new file mode 100644 index 000000000..ed84fe95e --- /dev/null +++ b/arch/arm/mach-omap2/omap_opp_data.h @@ -0,0 +1,86 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP SoC specific OPP Data helpers + * + * Copyright (C) 2009-2010 Texas Instruments Incorporated - https://www.ti.com/ + * Nishanth Menon + * Kevin Hilman + * Copyright (C) 2010 Nokia Corporation. + * Eduardo Valentin + */ +#ifndef __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H +#define __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H + +#include "omap_hwmod.h" + +#include "voltage.h" + +/* + * *BIG FAT WARNING*: + * USE the following ONLY in opp data initialization common to an SoC. + * DO NOT USE these in board files/pm core etc. + */ + +/** + * struct omap_opp_def - OMAP OPP Definition + * @hwmod_name: Name of the hwmod for this domain + * @freq: Frequency in hertz corresponding to this OPP + * @u_volt: Nominal voltage in microvolts corresponding to this OPP + * @default_available: True/false - is this OPP available by default + * + * OMAP SOCs have a standard set of tuples consisting of frequency and voltage + * pairs that the device will support per voltage domain. This is called + * Operating Points or OPP. The actual definitions of OMAP Operating Points + * varies over silicon within the same family of devices. For a specific + * domain, you can have a set of {frequency, voltage} pairs and this is denoted + * by an array of omap_opp_def. As the kernel boots and more information is + * available, a set of these are activated based on the precise nature of + * device the kernel boots up on. It is interesting to remember that each IP + * which belongs to a voltage domain may define their own set of OPPs on top + * of this - but this is handled by the appropriate driver. + */ +struct omap_opp_def { + char *hwmod_name; + + unsigned long freq; + unsigned long u_volt; + + bool default_available; +}; + +/* + * Initialization wrapper used to define an OPP for OMAP variants. + */ +#define OPP_INITIALIZER(_hwmod_name, _enabled, _freq, _uv) \ +{ \ + .hwmod_name = _hwmod_name, \ + .default_available = _enabled, \ + .freq = _freq, \ + .u_volt = _uv, \ +} + +/* + * Initialization wrapper used to define SmartReflex process data + * XXX Is this needed? Just use C99 initializers in data files? + */ +#define VOLT_DATA_DEFINE(_v_nom, _efuse_offs, _errminlimit, _errgain) \ +{ \ + .volt_nominal = _v_nom, \ + .sr_efuse_offs = _efuse_offs, \ + .sr_errminlimit = _errminlimit, \ + .vp_errgain = _errgain \ +} + +extern struct omap_volt_data omap34xx_vddmpu_volt_data[]; +extern struct omap_volt_data omap34xx_vddcore_volt_data[]; +extern struct omap_volt_data omap36xx_vddmpu_volt_data[]; +extern struct omap_volt_data omap36xx_vddcore_volt_data[]; + +extern struct omap_volt_data omap443x_vdd_mpu_volt_data[]; +extern struct omap_volt_data omap443x_vdd_iva_volt_data[]; +extern struct omap_volt_data omap443x_vdd_core_volt_data[]; +extern struct omap_volt_data omap446x_vdd_mpu_volt_data[]; +extern struct omap_volt_data omap446x_vdd_iva_volt_data[]; +extern struct omap_volt_data omap446x_vdd_core_volt_data[]; + +#endif /* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */ diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c new file mode 100644 index 000000000..a1d001170 --- /dev/null +++ b/arch/arm/mach-omap2/omap_phy_internal.c @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * This file configures the internal USB PHY in OMAP4430. Used + * with TWL6030 transceiver and MUSB on OMAP4430. + * + * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com + * Author: Hema HK <hemahk@ti.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/usb.h> +#include <linux/usb/musb.h> + +#include "soc.h" +#include "control.h" + +#define CONTROL_DEV_CONF 0x300 +#define PHY_PD 0x1 + +/** + * omap4430_phy_power_down: disable MUSB PHY during early init + * + * OMAP4 MUSB PHY module is enabled by default on reset, but this will + * prevent core retention if not disabled by SW. USB driver will + * later on enable this, once and if the driver needs it. + */ +static int __init omap4430_phy_power_down(void) +{ + void __iomem *ctrl_base; + + if (!cpu_is_omap44xx()) + return 0; + + ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K); + if (!ctrl_base) { + pr_err("control module ioremap failed\n"); + return -ENOMEM; + } + + /* Power down the phy */ + writel_relaxed(PHY_PD, ctrl_base + CONTROL_DEV_CONF); + + iounmap(ctrl_base); + + return 0; +} +omap_early_initcall(omap4430_phy_power_down); diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c new file mode 100644 index 000000000..d4dab0413 --- /dev/null +++ b/arch/arm/mach-omap2/omap_twl.c @@ -0,0 +1,247 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP and TWL PMIC specific initializations. + * + * Copyright (C) 2010 Texas Instruments Incorporated. + * Thara Gopinath + * Copyright (C) 2009 Texas Instruments Incorporated. + * Nishanth Menon + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + */ + +#include <linux/err.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/mfd/twl.h> + +#include "soc.h" +#include "voltage.h" + +#include "pm.h" + +#define OMAP3_SRI2C_SLAVE_ADDR 0x12 +#define OMAP3_VDD_MPU_SR_CONTROL_REG 0x00 +#define OMAP3_VDD_CORE_SR_CONTROL_REG 0x01 +#define OMAP3_VP_CONFIG_ERROROFFSET 0x00 +#define OMAP3_VP_VSTEPMIN_VSTEPMIN 0x1 +#define OMAP3_VP_VSTEPMAX_VSTEPMAX 0x04 +#define OMAP3_VP_VLIMITTO_TIMEOUT_US 200 + +#define OMAP4_SRI2C_SLAVE_ADDR 0x12 +#define OMAP4_VDD_MPU_SR_VOLT_REG 0x55 +#define OMAP4_VDD_MPU_SR_CMD_REG 0x56 +#define OMAP4_VDD_IVA_SR_VOLT_REG 0x5B +#define OMAP4_VDD_IVA_SR_CMD_REG 0x5C +#define OMAP4_VDD_CORE_SR_VOLT_REG 0x61 +#define OMAP4_VDD_CORE_SR_CMD_REG 0x62 + +static bool is_offset_valid; +static u8 smps_offset; + +#define REG_SMPS_OFFSET 0xE0 + +static unsigned long twl4030_vsel_to_uv(const u8 vsel) +{ + return (((vsel * 125) + 6000)) * 100; +} + +static u8 twl4030_uv_to_vsel(unsigned long uv) +{ + return DIV_ROUND_UP(uv - 600000, 12500); +} + +static unsigned long twl6030_vsel_to_uv(const u8 vsel) +{ + /* + * In TWL6030 depending on the value of SMPS_OFFSET + * efuse register the voltage range supported in + * standard mode can be either between 0.6V - 1.3V or + * 0.7V - 1.4V. In TWL6030 ES1.0 SMPS_OFFSET efuse + * is programmed to all 0's where as starting from + * TWL6030 ES1.1 the efuse is programmed to 1 + */ + if (!is_offset_valid) { + twl_i2c_read_u8(TWL6030_MODULE_ID0, &smps_offset, + REG_SMPS_OFFSET); + is_offset_valid = true; + } + + if (!vsel) + return 0; + /* + * There is no specific formula for voltage to vsel + * conversion above 1.3V. There are special hardcoded + * values for voltages above 1.3V. Currently we are + * hardcoding only for 1.35 V which is used for 1GH OPP for + * OMAP4430. + */ + if (vsel == 0x3A) + return 1350000; + + if (smps_offset & 0x8) + return ((((vsel - 1) * 1266) + 70900)) * 10; + else + return ((((vsel - 1) * 1266) + 60770)) * 10; +} + +static u8 twl6030_uv_to_vsel(unsigned long uv) +{ + /* + * In TWL6030 depending on the value of SMPS_OFFSET + * efuse register the voltage range supported in + * standard mode can be either between 0.6V - 1.3V or + * 0.7V - 1.4V. In TWL6030 ES1.0 SMPS_OFFSET efuse + * is programmed to all 0's where as starting from + * TWL6030 ES1.1 the efuse is programmed to 1 + */ + if (!is_offset_valid) { + twl_i2c_read_u8(TWL6030_MODULE_ID0, &smps_offset, + REG_SMPS_OFFSET); + is_offset_valid = true; + } + + if (!uv) + return 0x00; + /* + * There is no specific formula for voltage to vsel + * conversion above 1.3V. There are special hardcoded + * values for voltages above 1.3V. Currently we are + * hardcoding only for 1.35 V which is used for 1GH OPP for + * OMAP4430. + */ + if (uv > twl6030_vsel_to_uv(0x39)) { + if (uv == 1350000) + return 0x3A; + pr_err("%s:OUT OF RANGE! non mapped vsel for %ld Vs max %ld\n", + __func__, uv, twl6030_vsel_to_uv(0x39)); + return 0x3A; + } + + if (smps_offset & 0x8) + return DIV_ROUND_UP(uv - 709000, 12660) + 1; + else + return DIV_ROUND_UP(uv - 607700, 12660) + 1; +} + +static struct omap_voltdm_pmic omap3_mpu_pmic = { + .slew_rate = 4000, + .step_size = 12500, + .vp_erroroffset = OMAP3_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP3_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP3_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 600000, + .vddmax = 1450000, + .vp_timeout_us = OMAP3_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = OMAP3_SRI2C_SLAVE_ADDR, + .volt_reg_addr = OMAP3_VDD_MPU_SR_CONTROL_REG, + .i2c_high_speed = true, + .vsel_to_uv = twl4030_vsel_to_uv, + .uv_to_vsel = twl4030_uv_to_vsel, +}; + +static struct omap_voltdm_pmic omap3_core_pmic = { + .slew_rate = 4000, + .step_size = 12500, + .vp_erroroffset = OMAP3_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP3_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP3_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 600000, + .vddmax = 1450000, + .vp_timeout_us = OMAP3_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = OMAP3_SRI2C_SLAVE_ADDR, + .volt_reg_addr = OMAP3_VDD_CORE_SR_CONTROL_REG, + .i2c_high_speed = true, + .vsel_to_uv = twl4030_vsel_to_uv, + .uv_to_vsel = twl4030_uv_to_vsel, +}; + +static struct omap_voltdm_pmic omap4_mpu_pmic = { + .slew_rate = 4000, + .step_size = 12660, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 0, + .vddmax = 2100000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = OMAP4_SRI2C_SLAVE_ADDR, + .volt_reg_addr = OMAP4_VDD_MPU_SR_VOLT_REG, + .cmd_reg_addr = OMAP4_VDD_MPU_SR_CMD_REG, + .i2c_high_speed = true, + .i2c_pad_load = 3, + .vsel_to_uv = twl6030_vsel_to_uv, + .uv_to_vsel = twl6030_uv_to_vsel, +}; + +static struct omap_voltdm_pmic omap4_iva_pmic = { + .slew_rate = 4000, + .step_size = 12660, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 0, + .vddmax = 2100000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = OMAP4_SRI2C_SLAVE_ADDR, + .volt_reg_addr = OMAP4_VDD_IVA_SR_VOLT_REG, + .cmd_reg_addr = OMAP4_VDD_IVA_SR_CMD_REG, + .i2c_high_speed = true, + .i2c_pad_load = 3, + .vsel_to_uv = twl6030_vsel_to_uv, + .uv_to_vsel = twl6030_uv_to_vsel, +}; + +static struct omap_voltdm_pmic omap4_core_pmic = { + .slew_rate = 4000, + .step_size = 12660, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 0, + .vddmax = 2100000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = OMAP4_SRI2C_SLAVE_ADDR, + .volt_reg_addr = OMAP4_VDD_CORE_SR_VOLT_REG, + .cmd_reg_addr = OMAP4_VDD_CORE_SR_CMD_REG, + .i2c_high_speed = true, + .i2c_pad_load = 3, + .vsel_to_uv = twl6030_vsel_to_uv, + .uv_to_vsel = twl6030_uv_to_vsel, +}; + +int __init omap4_twl_init(void) +{ + struct voltagedomain *voltdm; + + if (!cpu_is_omap44xx() || + of_find_compatible_node(NULL, NULL, "motorola,cpcap")) + return -ENODEV; + + voltdm = voltdm_lookup("mpu"); + omap_voltage_register_pmic(voltdm, &omap4_mpu_pmic); + + voltdm = voltdm_lookup("iva"); + omap_voltage_register_pmic(voltdm, &omap4_iva_pmic); + + voltdm = voltdm_lookup("core"); + omap_voltage_register_pmic(voltdm, &omap4_core_pmic); + + return 0; +} + +int __init omap3_twl_init(void) +{ + struct voltagedomain *voltdm; + + if (!cpu_is_omap34xx()) + return -ENODEV; + + voltdm = voltdm_lookup("mpu_iva"); + omap_voltage_register_pmic(voltdm, &omap3_mpu_pmic); + + voltdm = voltdm_lookup("core"); + omap_voltage_register_pmic(voltdm, &omap3_core_pmic); + + return 0; +} diff --git a/arch/arm/mach-omap2/opp2420_data.c b/arch/arm/mach-omap2/opp2420_data.c new file mode 100644 index 000000000..18a448f93 --- /dev/null +++ b/arch/arm/mach-omap2/opp2420_data.c @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * opp2420_data.c - old-style "OPP" table for OMAP2420 + * + * Copyright (C) 2005-2009 Texas Instruments, Inc. + * Copyright (C) 2004-2009 Nokia Corporation + * + * Richard Woodruff <r-woodruff2@ti.com> + * + * The OMAP2 processor can be run at several discrete 'PRCM configurations'. + * These configurations are characterized by voltage and speed for clocks. + * The device is only validated for certain combinations. One way to express + * these combinations is via the 'ratios' which the clocks operate with + * respect to each other. These ratio sets are for a given voltage/DPLL + * setting. All configurations can be described by a DPLL setting and a ratio. + * + * XXX Missing voltage data. + * XXX Missing 19.2MHz sys_clk rate sets (needed for N800/N810) + * + * THe format described in this file is deprecated. Once a reasonable + * OPP API exists, the data in this file should be converted to use it. + * + * This is technically part of the OMAP2xxx clock code. + * + * Considerable work is still needed to fully support dynamic frequency + * changes on OMAP2xxx-series chips. Readers interested in such a + * project are encouraged to review the Maemo Diablo RX-34 and RX-44 + * kernel source at: + * http://repository.maemo.org/pool/diablo/free/k/kernel-source-diablo/ + */ + +#include <linux/kernel.h> + +#include "opp2xxx.h" +#include "sdrc.h" +#include "clock.h" + +/* + * Key dividers which make up a PRCM set. Ratios for a PRCM are mandated. + * xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU, + * CM_CLKSEL_DSP, CM_CLKSEL_GFX, CM_CLKSEL1_CORE, CM_CLKSEL1_PLL, + * CM_CLKSEL2_PLL, CM_CLKSEL_MDM + * + * Filling in table based on H4 boards available. There are quite a + * few more rate combinations which could be defined. + * + * When multiple values are defined the start up will try and choose + * the fastest one. If a 'fast' value is defined, then automatically, + * the /2 one should be included as it can be used. Generally having + * more than one fast set does not make sense, as static timings need + * to be changed to change the set. The exception is the bypass + * setting which is available for low power bypass. + * + * Note: This table needs to be sorted, fastest to slowest. + **/ +const struct prcm_config omap2420_rate_table[] = { + /* PRCM I - FAST */ + {S12M, S660M, S330M, RI_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */ + RI_CM_CLKSEL_DSP_VAL, RI_CM_CLKSEL_GFX_VAL, + RI_CM_CLKSEL1_CORE_VAL, MI_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_165MHz, + RATE_IN_242X}, + + /* PRCM II - FAST */ + {S12M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ + RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, + RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, + RATE_IN_242X}, + + {S13M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ + RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, + RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, + RATE_IN_242X}, + + /* PRCM III - FAST */ + {S12M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ + RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, + RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, + RATE_IN_242X}, + + {S13M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ + RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, + RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, + RATE_IN_242X}, + + /* PRCM II - SLOW */ + {S12M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ + RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, + RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, + RATE_IN_242X}, + + {S13M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ + RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, + RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, + RATE_IN_242X}, + + /* PRCM III - SLOW */ + {S12M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ + RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, + RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, + RATE_IN_242X}, + + {S13M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ + RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, + RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, + RATE_IN_242X}, + + /* PRCM-VII (boot-bypass) */ + {S12M, S12M, S12M, RVII_CM_CLKSEL_MPU_VAL, /* 12MHz ARM*/ + RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, + RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, + RATE_IN_242X}, + + /* PRCM-VII (boot-bypass) */ + {S13M, S13M, S13M, RVII_CM_CLKSEL_MPU_VAL, /* 13MHz ARM */ + RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, + RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, + RATE_IN_242X}, + + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, +}; diff --git a/arch/arm/mach-omap2/opp2430_data.c b/arch/arm/mach-omap2/opp2430_data.c new file mode 100644 index 000000000..ded8b566a --- /dev/null +++ b/arch/arm/mach-omap2/opp2430_data.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * opp2430_data.c - old-style "OPP" table for OMAP2430 + * + * Copyright (C) 2005-2009 Texas Instruments, Inc. + * Copyright (C) 2004-2009 Nokia Corporation + * + * Richard Woodruff <r-woodruff2@ti.com> + * + * The OMAP2 processor can be run at several discrete 'PRCM configurations'. + * These configurations are characterized by voltage and speed for clocks. + * The device is only validated for certain combinations. One way to express + * these combinations is via the 'ratios' which the clocks operate with + * respect to each other. These ratio sets are for a given voltage/DPLL + * setting. All configurations can be described by a DPLL setting and a ratio. + * + * 2430 differs from 2420 in that there are no more phase synchronizers used. + * They both have a slightly different clock domain setup. 2420(iva1,dsp) vs + * 2430 (iva2.1, NOdsp, mdm) + * + * XXX Missing voltage data. + * XXX Missing 19.2MHz sys_clk rate sets. + * + * THe format described in this file is deprecated. Once a reasonable + * OPP API exists, the data in this file should be converted to use it. + * + * This is technically part of the OMAP2xxx clock code. + */ + +#include <linux/kernel.h> + +#include "opp2xxx.h" +#include "sdrc.h" +#include "clock.h" + +/* + * Key dividers which make up a PRCM set. Ratios for a PRCM are mandated. + * xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU, + * CM_CLKSEL_DSP, CM_CLKSEL_GFX, CM_CLKSEL1_CORE, CM_CLKSEL1_PLL, + * CM_CLKSEL2_PLL, CM_CLKSEL_MDM + * + * Filling in table based on 2430-SDPs variants available. There are + * quite a few more rate combinations which could be defined. + * + * When multiple values are defined the start up will try and choose + * the fastest one. If a 'fast' value is defined, then automatically, + * the /2 one should be included as it can be used. Generally having + * more than one fast set does not make sense, as static timings need + * to be changed to change the set. The exception is the bypass + * setting which is available for low power bypass. + * + * Note: This table needs to be sorted, fastest to slowest. + */ +const struct prcm_config omap2430_rate_table[] = { + /* PRCM #4 - ratio2 (ES2.1) - FAST */ + {S13M, S798M, S399M, R2_CM_CLKSEL_MPU_VAL, /* 399MHz ARM */ + R2_CM_CLKSEL_DSP_VAL, R2_CM_CLKSEL_GFX_VAL, + R2_CM_CLKSEL1_CORE_VAL, M4_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, R2_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_133MHz, + RATE_IN_243X}, + + /* PRCM #2 - ratio1 (ES2) - FAST */ + {S13M, S658M, S329M, R1_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M2_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_165MHz, + RATE_IN_243X}, + + /* PRCM #5a - ratio1 - FAST */ + {S13M, S532M, S266M, R1_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M5A_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_133MHz, + RATE_IN_243X}, + + /* PRCM #5b - ratio1 - FAST */ + {S13M, S400M, S200M, R1_CM_CLKSEL_MPU_VAL, /* 200MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M5B_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_100MHz, + RATE_IN_243X}, + + /* PRCM #4 - ratio1 (ES2.1) - SLOW */ + {S13M, S399M, S199M, R2_CM_CLKSEL_MPU_VAL, /* 200MHz ARM */ + R2_CM_CLKSEL_DSP_VAL, R2_CM_CLKSEL_GFX_VAL, + R2_CM_CLKSEL1_CORE_VAL, M4_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_1x_VAL, R2_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_133MHz, + RATE_IN_243X}, + + /* PRCM #2 - ratio1 (ES2) - SLOW */ + {S13M, S329M, S164M, R1_CM_CLKSEL_MPU_VAL, /* 165MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M2_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_165MHz, + RATE_IN_243X}, + + /* PRCM #5a - ratio1 - SLOW */ + {S13M, S266M, S133M, R1_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M5A_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_133MHz, + RATE_IN_243X}, + + /* PRCM #5b - ratio1 - SLOW*/ + {S13M, S200M, S100M, R1_CM_CLKSEL_MPU_VAL, /* 100MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M5B_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_100MHz, + RATE_IN_243X}, + + /* PRCM-boot/bypass */ + {S13M, S13M, S13M, RB_CM_CLKSEL_MPU_VAL, /* 13MHz */ + RB_CM_CLKSEL_DSP_VAL, RB_CM_CLKSEL_GFX_VAL, + RB_CM_CLKSEL1_CORE_VAL, MB_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, RB_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_BYPASS, + RATE_IN_243X}, + + /* PRCM-boot/bypass */ + {S12M, S12M, S12M, RB_CM_CLKSEL_MPU_VAL, /* 12MHz */ + RB_CM_CLKSEL_DSP_VAL, RB_CM_CLKSEL_GFX_VAL, + RB_CM_CLKSEL1_CORE_VAL, MB_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, RB_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_BYPASS, + RATE_IN_243X}, + + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, +}; diff --git a/arch/arm/mach-omap2/opp2xxx.h b/arch/arm/mach-omap2/opp2xxx.h new file mode 100644 index 000000000..a451182cd --- /dev/null +++ b/arch/arm/mach-omap2/opp2xxx.h @@ -0,0 +1,430 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * opp2xxx.h - macros for old-style OMAP2xxx "OPP" definitions + * + * Copyright (C) 2005-2009 Texas Instruments, Inc. + * Copyright (C) 2004-2009 Nokia Corporation + * + * Richard Woodruff <r-woodruff2@ti.com> + * + * The OMAP2 processor can be run at several discrete 'PRCM configurations'. + * These configurations are characterized by voltage and speed for clocks. + * The device is only validated for certain combinations. One way to express + * these combinations is via the 'ratio's' which the clocks operate with + * respect to each other. These ratio sets are for a given voltage/DPLL + * setting. All configurations can be described by a DPLL setting and a ratio + * There are 3 ratio sets for the 2430 and X ratio sets for 2420. + * + * 2430 differs from 2420 in that there are no more phase synchronizers used. + * They both have a slightly different clock domain setup. 2420(iva1,dsp) vs + * 2430 (iva2.1, NOdsp, mdm) + * + * XXX Missing voltage data. + * + * THe format described in this file is deprecated. Once a reasonable + * OPP API exists, the data in this file should be converted to use it. + * + * This is technically part of the OMAP2xxx clock code. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_OPP2XXX_H +#define __ARCH_ARM_MACH_OMAP2_OPP2XXX_H + +/** + * struct prcm_config - define clock rates on a per-OPP basis (24xx) + * + * Key dividers which make up a PRCM set. Ratio's for a PRCM are mandated. + * xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU,CM_CLKSEL_DSP + * CM_CLKSEL_GFX, CM_CLKSEL1_CORE, CM_CLKSEL1_PLL CM_CLKSEL2_PLL, CM_CLKSEL_MDM + * + * This is deprecated. As soon as we have a decent OPP API, we should + * move all this stuff to it. + */ +struct prcm_config { + unsigned long xtal_speed; /* crystal rate */ + unsigned long dpll_speed; /* dpll: out*xtal*M/(N-1)table_recalc */ + unsigned long mpu_speed; /* speed of MPU */ + unsigned long cm_clksel_mpu; /* mpu divider */ + unsigned long cm_clksel_dsp; /* dsp+iva1 div(2420), iva2.1(2430) */ + unsigned long cm_clksel_gfx; /* gfx dividers */ + unsigned long cm_clksel1_core; /* major subsystem dividers */ + unsigned long cm_clksel1_pll; /* m,n */ + unsigned long cm_clksel2_pll; /* dpllx1 or x2 out */ + unsigned long cm_clksel_mdm; /* modem dividers 2430 only */ + unsigned long base_sdrc_rfr; /* base refresh timing for a set */ + unsigned short flags; +}; + + +/* Core fields for cm_clksel, not ratio governed */ +#define RX_CLKSEL_DSS1 (0x10 << 8) +#define RX_CLKSEL_DSS2 (0x0 << 13) +#define RX_CLKSEL_SSI (0x5 << 20) + +/*------------------------------------------------------------------------- + * Voltage/DPLL ratios + *-------------------------------------------------------------------------*/ + +/* 2430 Ratio's, 2430-Ratio Config 1 */ +#define R1_CLKSEL_L3 (4 << 0) +#define R1_CLKSEL_L4 (2 << 5) +#define R1_CLKSEL_USB (4 << 25) +#define R1_CM_CLKSEL1_CORE_VAL (R1_CLKSEL_USB | RX_CLKSEL_SSI | \ + RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \ + R1_CLKSEL_L4 | R1_CLKSEL_L3) +#define R1_CLKSEL_MPU (2 << 0) +#define R1_CM_CLKSEL_MPU_VAL R1_CLKSEL_MPU +#define R1_CLKSEL_DSP (2 << 0) +#define R1_CLKSEL_DSP_IF (2 << 5) +#define R1_CM_CLKSEL_DSP_VAL (R1_CLKSEL_DSP | R1_CLKSEL_DSP_IF) +#define R1_CLKSEL_GFX (2 << 0) +#define R1_CM_CLKSEL_GFX_VAL R1_CLKSEL_GFX +#define R1_CLKSEL_MDM (4 << 0) +#define R1_CM_CLKSEL_MDM_VAL R1_CLKSEL_MDM + +/* 2430-Ratio Config 2 */ +#define R2_CLKSEL_L3 (6 << 0) +#define R2_CLKSEL_L4 (2 << 5) +#define R2_CLKSEL_USB (2 << 25) +#define R2_CM_CLKSEL1_CORE_VAL (R2_CLKSEL_USB | RX_CLKSEL_SSI | \ + RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \ + R2_CLKSEL_L4 | R2_CLKSEL_L3) +#define R2_CLKSEL_MPU (2 << 0) +#define R2_CM_CLKSEL_MPU_VAL R2_CLKSEL_MPU +#define R2_CLKSEL_DSP (2 << 0) +#define R2_CLKSEL_DSP_IF (3 << 5) +#define R2_CM_CLKSEL_DSP_VAL (R2_CLKSEL_DSP | R2_CLKSEL_DSP_IF) +#define R2_CLKSEL_GFX (2 << 0) +#define R2_CM_CLKSEL_GFX_VAL R2_CLKSEL_GFX +#define R2_CLKSEL_MDM (6 << 0) +#define R2_CM_CLKSEL_MDM_VAL R2_CLKSEL_MDM + +/* 2430-Ratio Bootm (BYPASS) */ +#define RB_CLKSEL_L3 (1 << 0) +#define RB_CLKSEL_L4 (1 << 5) +#define RB_CLKSEL_USB (1 << 25) +#define RB_CM_CLKSEL1_CORE_VAL (RB_CLKSEL_USB | RX_CLKSEL_SSI | \ + RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \ + RB_CLKSEL_L4 | RB_CLKSEL_L3) +#define RB_CLKSEL_MPU (1 << 0) +#define RB_CM_CLKSEL_MPU_VAL RB_CLKSEL_MPU +#define RB_CLKSEL_DSP (1 << 0) +#define RB_CLKSEL_DSP_IF (1 << 5) +#define RB_CM_CLKSEL_DSP_VAL (RB_CLKSEL_DSP | RB_CLKSEL_DSP_IF) +#define RB_CLKSEL_GFX (1 << 0) +#define RB_CM_CLKSEL_GFX_VAL RB_CLKSEL_GFX +#define RB_CLKSEL_MDM (1 << 0) +#define RB_CM_CLKSEL_MDM_VAL RB_CLKSEL_MDM + +/* 2420 Ratio Equivalents */ +#define RXX_CLKSEL_VLYNQ (0x12 << 15) +#define RXX_CLKSEL_SSI (0x8 << 20) + +/* 2420-PRCM III 532MHz core */ +#define RIII_CLKSEL_L3 (4 << 0) /* 133MHz */ +#define RIII_CLKSEL_L4 (2 << 5) /* 66.5MHz */ +#define RIII_CLKSEL_USB (4 << 25) /* 33.25MHz */ +#define RIII_CM_CLKSEL1_CORE_VAL (RIII_CLKSEL_USB | RXX_CLKSEL_SSI | \ + RXX_CLKSEL_VLYNQ | RX_CLKSEL_DSS2 | \ + RX_CLKSEL_DSS1 | RIII_CLKSEL_L4 | \ + RIII_CLKSEL_L3) +#define RIII_CLKSEL_MPU (2 << 0) /* 266MHz */ +#define RIII_CM_CLKSEL_MPU_VAL RIII_CLKSEL_MPU +#define RIII_CLKSEL_DSP (3 << 0) /* c5x - 177.3MHz */ +#define RIII_CLKSEL_DSP_IF (2 << 5) /* c5x - 88.67MHz */ +#define RIII_SYNC_DSP (1 << 7) /* Enable sync */ +#define RIII_CLKSEL_IVA (6 << 8) /* iva1 - 88.67MHz */ +#define RIII_SYNC_IVA (1 << 13) /* Enable sync */ +#define RIII_CM_CLKSEL_DSP_VAL (RIII_SYNC_IVA | RIII_CLKSEL_IVA | \ + RIII_SYNC_DSP | RIII_CLKSEL_DSP_IF | \ + RIII_CLKSEL_DSP) +#define RIII_CLKSEL_GFX (2 << 0) /* 66.5MHz */ +#define RIII_CM_CLKSEL_GFX_VAL RIII_CLKSEL_GFX + +/* 2420-PRCM II 600MHz core */ +#define RII_CLKSEL_L3 (6 << 0) /* 100MHz */ +#define RII_CLKSEL_L4 (2 << 5) /* 50MHz */ +#define RII_CLKSEL_USB (2 << 25) /* 50MHz */ +#define RII_CM_CLKSEL1_CORE_VAL (RII_CLKSEL_USB | RXX_CLKSEL_SSI | \ + RXX_CLKSEL_VLYNQ | RX_CLKSEL_DSS2 | \ + RX_CLKSEL_DSS1 | RII_CLKSEL_L4 | \ + RII_CLKSEL_L3) +#define RII_CLKSEL_MPU (2 << 0) /* 300MHz */ +#define RII_CM_CLKSEL_MPU_VAL RII_CLKSEL_MPU +#define RII_CLKSEL_DSP (3 << 0) /* c5x - 200MHz */ +#define RII_CLKSEL_DSP_IF (2 << 5) /* c5x - 100MHz */ +#define RII_SYNC_DSP (0 << 7) /* Bypass sync */ +#define RII_CLKSEL_IVA (3 << 8) /* iva1 - 200MHz */ +#define RII_SYNC_IVA (0 << 13) /* Bypass sync */ +#define RII_CM_CLKSEL_DSP_VAL (RII_SYNC_IVA | RII_CLKSEL_IVA | \ + RII_SYNC_DSP | RII_CLKSEL_DSP_IF | \ + RII_CLKSEL_DSP) +#define RII_CLKSEL_GFX (2 << 0) /* 50MHz */ +#define RII_CM_CLKSEL_GFX_VAL RII_CLKSEL_GFX + +/* 2420-PRCM I 660MHz core */ +#define RI_CLKSEL_L3 (4 << 0) /* 165MHz */ +#define RI_CLKSEL_L4 (2 << 5) /* 82.5MHz */ +#define RI_CLKSEL_USB (4 << 25) /* 41.25MHz */ +#define RI_CM_CLKSEL1_CORE_VAL (RI_CLKSEL_USB | \ + RXX_CLKSEL_SSI | RXX_CLKSEL_VLYNQ | \ + RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \ + RI_CLKSEL_L4 | RI_CLKSEL_L3) +#define RI_CLKSEL_MPU (2 << 0) /* 330MHz */ +#define RI_CM_CLKSEL_MPU_VAL RI_CLKSEL_MPU +#define RI_CLKSEL_DSP (3 << 0) /* c5x - 220MHz */ +#define RI_CLKSEL_DSP_IF (2 << 5) /* c5x - 110MHz */ +#define RI_SYNC_DSP (1 << 7) /* Activate sync */ +#define RI_CLKSEL_IVA (4 << 8) /* iva1 - 165MHz */ +#define RI_SYNC_IVA (0 << 13) /* Bypass sync */ +#define RI_CM_CLKSEL_DSP_VAL (RI_SYNC_IVA | RI_CLKSEL_IVA | \ + RI_SYNC_DSP | RI_CLKSEL_DSP_IF | \ + RI_CLKSEL_DSP) +#define RI_CLKSEL_GFX (1 << 0) /* 165MHz */ +#define RI_CM_CLKSEL_GFX_VAL RI_CLKSEL_GFX + +/* 2420-PRCM VII (boot) */ +#define RVII_CLKSEL_L3 (1 << 0) +#define RVII_CLKSEL_L4 (1 << 5) +#define RVII_CLKSEL_DSS1 (1 << 8) +#define RVII_CLKSEL_DSS2 (0 << 13) +#define RVII_CLKSEL_VLYNQ (1 << 15) +#define RVII_CLKSEL_SSI (1 << 20) +#define RVII_CLKSEL_USB (1 << 25) + +#define RVII_CM_CLKSEL1_CORE_VAL (RVII_CLKSEL_USB | RVII_CLKSEL_SSI | \ + RVII_CLKSEL_VLYNQ | \ + RVII_CLKSEL_DSS2 | RVII_CLKSEL_DSS1 | \ + RVII_CLKSEL_L4 | RVII_CLKSEL_L3) + +#define RVII_CLKSEL_MPU (1 << 0) /* all divide by 1 */ +#define RVII_CM_CLKSEL_MPU_VAL RVII_CLKSEL_MPU + +#define RVII_CLKSEL_DSP (1 << 0) +#define RVII_CLKSEL_DSP_IF (1 << 5) +#define RVII_SYNC_DSP (0 << 7) +#define RVII_CLKSEL_IVA (1 << 8) +#define RVII_SYNC_IVA (0 << 13) +#define RVII_CM_CLKSEL_DSP_VAL (RVII_SYNC_IVA | RVII_CLKSEL_IVA | \ + RVII_SYNC_DSP | RVII_CLKSEL_DSP_IF | \ + RVII_CLKSEL_DSP) + +#define RVII_CLKSEL_GFX (1 << 0) +#define RVII_CM_CLKSEL_GFX_VAL RVII_CLKSEL_GFX + +/*------------------------------------------------------------------------- + * 2430 Target modes: Along with each configuration the CPU has several + * modes which goes along with them. Modes mainly are the addition of + * describe DPLL combinations to go along with a ratio. + *-------------------------------------------------------------------------*/ + +/* Hardware governed */ +#define MX_48M_SRC (0 << 3) +#define MX_54M_SRC (0 << 5) +#define MX_APLLS_CLIKIN_12 (3 << 23) +#define MX_APLLS_CLIKIN_13 (2 << 23) +#define MX_APLLS_CLIKIN_19_2 (0 << 23) + +/* + * 2430 - standalone, 2*ref*M/(n+1), M/N is for exactness not relock speed + * #5a (ratio1) baseport-target, target DPLL = 266*2 = 532MHz + */ +#define M5A_DPLL_MULT_12 (133 << 12) +#define M5A_DPLL_DIV_12 (5 << 8) +#define M5A_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + M5A_DPLL_DIV_12 | M5A_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12) +#define M5A_DPLL_MULT_13 (61 << 12) +#define M5A_DPLL_DIV_13 (2 << 8) +#define M5A_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + M5A_DPLL_DIV_13 | M5A_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13) +#define M5A_DPLL_MULT_19 (55 << 12) +#define M5A_DPLL_DIV_19 (3 << 8) +#define M5A_CM_CLKSEL1_PLL_19_VAL (MX_48M_SRC | MX_54M_SRC | \ + M5A_DPLL_DIV_19 | M5A_DPLL_MULT_19 | \ + MX_APLLS_CLIKIN_19_2) +/* #5b (ratio1) target DPLL = 200*2 = 400MHz */ +#define M5B_DPLL_MULT_12 (50 << 12) +#define M5B_DPLL_DIV_12 (2 << 8) +#define M5B_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + M5B_DPLL_DIV_12 | M5B_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12) +#define M5B_DPLL_MULT_13 (200 << 12) +#define M5B_DPLL_DIV_13 (12 << 8) + +#define M5B_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + M5B_DPLL_DIV_13 | M5B_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13) +#define M5B_DPLL_MULT_19 (125 << 12) +#define M5B_DPLL_DIV_19 (31 << 8) +#define M5B_CM_CLKSEL1_PLL_19_VAL (MX_48M_SRC | MX_54M_SRC | \ + M5B_DPLL_DIV_19 | M5B_DPLL_MULT_19 | \ + MX_APLLS_CLIKIN_19_2) +/* + * #4 (ratio2), DPLL = 399*2 = 798MHz, L3=133MHz + */ +#define M4_DPLL_MULT_12 (133 << 12) +#define M4_DPLL_DIV_12 (3 << 8) +#define M4_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + M4_DPLL_DIV_12 | M4_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12) + +#define M4_DPLL_MULT_13 (399 << 12) +#define M4_DPLL_DIV_13 (12 << 8) +#define M4_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + M4_DPLL_DIV_13 | M4_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13) + +#define M4_DPLL_MULT_19 (145 << 12) +#define M4_DPLL_DIV_19 (6 << 8) +#define M4_CM_CLKSEL1_PLL_19_VAL (MX_48M_SRC | MX_54M_SRC | \ + M4_DPLL_DIV_19 | M4_DPLL_MULT_19 | \ + MX_APLLS_CLIKIN_19_2) + +/* + * #3 (ratio2) baseport-target, target DPLL = 330*2 = 660MHz + */ +#define M3_DPLL_MULT_12 (55 << 12) +#define M3_DPLL_DIV_12 (1 << 8) +#define M3_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + M3_DPLL_DIV_12 | M3_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12) +#define M3_DPLL_MULT_13 (76 << 12) +#define M3_DPLL_DIV_13 (2 << 8) +#define M3_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + M3_DPLL_DIV_13 | M3_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13) +#define M3_DPLL_MULT_19 (17 << 12) +#define M3_DPLL_DIV_19 (0 << 8) +#define M3_CM_CLKSEL1_PLL_19_VAL (MX_48M_SRC | MX_54M_SRC | \ + M3_DPLL_DIV_19 | M3_DPLL_MULT_19 | \ + MX_APLLS_CLIKIN_19_2) + +/* + * #2 (ratio1) DPLL = 330*2 = 660MHz, L3=165MHz + */ +#define M2_DPLL_MULT_12 (55 << 12) +#define M2_DPLL_DIV_12 (1 << 8) +#define M2_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + M2_DPLL_DIV_12 | M2_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12) + +/* Speed changes - Used 658.7MHz instead of 660MHz for LP-Refresh M=76 N=2, + * relock time issue */ +/* Core frequency changed from 330/165 to 329/164 MHz*/ +#define M2_DPLL_MULT_13 (76 << 12) +#define M2_DPLL_DIV_13 (2 << 8) +#define M2_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + M2_DPLL_DIV_13 | M2_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13) + +#define M2_DPLL_MULT_19 (17 << 12) +#define M2_DPLL_DIV_19 (0 << 8) +#define M2_CM_CLKSEL1_PLL_19_VAL (MX_48M_SRC | MX_54M_SRC | \ + M2_DPLL_DIV_19 | M2_DPLL_MULT_19 | \ + MX_APLLS_CLIKIN_19_2) + +/* boot (boot) */ +#define MB_DPLL_MULT (1 << 12) +#define MB_DPLL_DIV (0 << 8) +#define MB_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + MB_DPLL_DIV | MB_DPLL_MULT | \ + MX_APLLS_CLIKIN_12) + +#define MB_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + MB_DPLL_DIV | MB_DPLL_MULT | \ + MX_APLLS_CLIKIN_13) + +#define MB_CM_CLKSEL1_PLL_19_VAL (MX_48M_SRC | MX_54M_SRC | \ + MB_DPLL_DIV | MB_DPLL_MULT | \ + MX_APLLS_CLIKIN_19) + +/* + * 2430 - chassis (sedna) + * 165 (ratio1) same as above #2 + * 150 (ratio1) + * 133 (ratio2) same as above #4 + * 110 (ratio2) same as above #3 + * 104 (ratio2) + * boot (boot) + */ + +/* PRCM I target DPLL = 2*330MHz = 660MHz */ +#define MI_DPLL_MULT_12 (55 << 12) +#define MI_DPLL_DIV_12 (1 << 8) +#define MI_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + MI_DPLL_DIV_12 | MI_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12) + +/* + * 2420 Equivalent - mode registers + * PRCM II , target DPLL = 2*300MHz = 600MHz + */ +#define MII_DPLL_MULT_12 (50 << 12) +#define MII_DPLL_DIV_12 (1 << 8) +#define MII_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + MII_DPLL_DIV_12 | MII_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12) +#define MII_DPLL_MULT_13 (300 << 12) +#define MII_DPLL_DIV_13 (12 << 8) +#define MII_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + MII_DPLL_DIV_13 | MII_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13) + +/* PRCM III target DPLL = 2*266 = 532MHz*/ +#define MIII_DPLL_MULT_12 (133 << 12) +#define MIII_DPLL_DIV_12 (5 << 8) +#define MIII_CM_CLKSEL1_PLL_12_VAL (MX_48M_SRC | MX_54M_SRC | \ + MIII_DPLL_DIV_12 | \ + MIII_DPLL_MULT_12 | MX_APLLS_CLIKIN_12) +#define MIII_DPLL_MULT_13 (266 << 12) +#define MIII_DPLL_DIV_13 (12 << 8) +#define MIII_CM_CLKSEL1_PLL_13_VAL (MX_48M_SRC | MX_54M_SRC | \ + MIII_DPLL_DIV_13 | \ + MIII_DPLL_MULT_13 | MX_APLLS_CLIKIN_13) + +/* PRCM VII (boot bypass) */ +#define MVII_CM_CLKSEL1_PLL_12_VAL MB_CM_CLKSEL1_PLL_12_VAL +#define MVII_CM_CLKSEL1_PLL_13_VAL MB_CM_CLKSEL1_PLL_13_VAL + +/* High and low operation value */ +#define MX_CLKSEL2_PLL_2x_VAL (2 << 0) +#define MX_CLKSEL2_PLL_1x_VAL (1 << 0) + +/* MPU speed defines */ +#define S12M 12000000 +#define S13M 13000000 +#define S19M 19200000 +#define S26M 26000000 +#define S100M 100000000 +#define S133M 133000000 +#define S150M 150000000 +#define S164M 164000000 +#define S165M 165000000 +#define S199M 199000000 +#define S200M 200000000 +#define S266M 266000000 +#define S300M 300000000 +#define S329M 329000000 +#define S330M 330000000 +#define S399M 399000000 +#define S400M 400000000 +#define S532M 532000000 +#define S600M 600000000 +#define S658M 658000000 +#define S660M 660000000 +#define S798M 798000000 + + +extern const struct prcm_config omap2420_rate_table[]; + +#ifdef CONFIG_SOC_OMAP2430 +extern const struct prcm_config omap2430_rate_table[]; +#else +#define omap2430_rate_table NULL +#endif +extern const struct prcm_config *rate_table; +extern const struct prcm_config *curr_prcm_set; + +#endif diff --git a/arch/arm/mach-omap2/opp3xxx_data.c b/arch/arm/mach-omap2/opp3xxx_data.c new file mode 100644 index 000000000..90257e2fb --- /dev/null +++ b/arch/arm/mach-omap2/opp3xxx_data.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 OPP table definitions. + * + * Copyright (C) 2009-2010 Texas Instruments Incorporated - https://www.ti.com/ + * Nishanth Menon + * Kevin Hilman + * Copyright (C) 2010-2011 Nokia Corporation. + * Eduardo Valentin + * Paul Walmsley + */ +#include <linux/module.h> + +#include "soc.h" +#include "control.h" +#include "omap_opp_data.h" +#include "pm.h" + +/* 34xx */ + +/* VDD1 */ + +#define OMAP3430_VDD_MPU_OPP1_UV 975000 +#define OMAP3430_VDD_MPU_OPP2_UV 1075000 +#define OMAP3430_VDD_MPU_OPP3_UV 1200000 +#define OMAP3430_VDD_MPU_OPP4_UV 1270000 +#define OMAP3430_VDD_MPU_OPP5_UV 1350000 + +struct omap_volt_data omap34xx_vddmpu_volt_data[] = { + VOLT_DATA_DEFINE(OMAP3430_VDD_MPU_OPP1_UV, OMAP343X_CONTROL_FUSE_OPP1_VDD1, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP3430_VDD_MPU_OPP2_UV, OMAP343X_CONTROL_FUSE_OPP2_VDD1, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP3430_VDD_MPU_OPP3_UV, OMAP343X_CONTROL_FUSE_OPP3_VDD1, 0xf9, 0x18), + VOLT_DATA_DEFINE(OMAP3430_VDD_MPU_OPP4_UV, OMAP343X_CONTROL_FUSE_OPP4_VDD1, 0xf9, 0x18), + VOLT_DATA_DEFINE(OMAP3430_VDD_MPU_OPP5_UV, OMAP343X_CONTROL_FUSE_OPP5_VDD1, 0xf9, 0x18), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +/* VDD2 */ + +#define OMAP3430_VDD_CORE_OPP1_UV 975000 +#define OMAP3430_VDD_CORE_OPP2_UV 1050000 +#define OMAP3430_VDD_CORE_OPP3_UV 1150000 + +struct omap_volt_data omap34xx_vddcore_volt_data[] = { + VOLT_DATA_DEFINE(OMAP3430_VDD_CORE_OPP1_UV, OMAP343X_CONTROL_FUSE_OPP1_VDD2, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP3430_VDD_CORE_OPP2_UV, OMAP343X_CONTROL_FUSE_OPP2_VDD2, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP3430_VDD_CORE_OPP3_UV, OMAP343X_CONTROL_FUSE_OPP3_VDD2, 0xf9, 0x18), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +/* 36xx */ + +/* VDD1 */ + +#define OMAP3630_VDD_MPU_OPP50_UV 1012500 +#define OMAP3630_VDD_MPU_OPP100_UV 1200000 +#define OMAP3630_VDD_MPU_OPP120_UV 1325000 +#define OMAP3630_VDD_MPU_OPP1G_UV 1375000 + +struct omap_volt_data omap36xx_vddmpu_volt_data[] = { + VOLT_DATA_DEFINE(OMAP3630_VDD_MPU_OPP50_UV, OMAP3630_CONTROL_FUSE_OPP50_VDD1, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP3630_VDD_MPU_OPP100_UV, OMAP3630_CONTROL_FUSE_OPP100_VDD1, 0xf9, 0x16), + VOLT_DATA_DEFINE(OMAP3630_VDD_MPU_OPP120_UV, OMAP3630_CONTROL_FUSE_OPP120_VDD1, 0xfa, 0x23), + VOLT_DATA_DEFINE(OMAP3630_VDD_MPU_OPP1G_UV, OMAP3630_CONTROL_FUSE_OPP1G_VDD1, 0xfa, 0x27), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +/* VDD2 */ + +#define OMAP3630_VDD_CORE_OPP50_UV 1000000 +#define OMAP3630_VDD_CORE_OPP100_UV 1200000 + +struct omap_volt_data omap36xx_vddcore_volt_data[] = { + VOLT_DATA_DEFINE(OMAP3630_VDD_CORE_OPP50_UV, OMAP3630_CONTROL_FUSE_OPP50_VDD2, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP3630_VDD_CORE_OPP100_UV, OMAP3630_CONTROL_FUSE_OPP100_VDD2, 0xf9, 0x16), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; diff --git a/arch/arm/mach-omap2/opp4xxx_data.c b/arch/arm/mach-omap2/opp4xxx_data.c new file mode 100644 index 000000000..a98518860 --- /dev/null +++ b/arch/arm/mach-omap2/opp4xxx_data.c @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 OPP table definitions. + * + * Copyright (C) 2010-2012 Texas Instruments Incorporated - https://www.ti.com/ + * Nishanth Menon + * Kevin Hilman + * Thara Gopinath + * Copyright (C) 2010-2011 Nokia Corporation. + * Eduardo Valentin + * Paul Walmsley + */ +#include <linux/module.h> + +#include "soc.h" +#include "control.h" +#include "omap_opp_data.h" +#include "pm.h" + +/* + * Structures containing OMAP4430 voltage supported and various + * voltage dependent data for each VDD. + */ + +#define OMAP4430_VDD_MPU_OPP50_UV 1025000 +#define OMAP4430_VDD_MPU_OPP100_UV 1200000 +#define OMAP4430_VDD_MPU_OPPTURBO_UV 1325000 +#define OMAP4430_VDD_MPU_OPPNITRO_UV 1388000 +#define OMAP4430_VDD_MPU_OPPNITROSB_UV 1398000 + +struct omap_volt_data omap443x_vdd_mpu_volt_data[] = { + VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP50_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP100_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16), + VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23), + VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPPNITRO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO, 0xfa, 0x27), + VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPPNITROSB_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPNITROSB, 0xfa, 0x27), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +#define OMAP4430_VDD_IVA_OPP50_UV 950000 +#define OMAP4430_VDD_IVA_OPP100_UV 1114000 +#define OMAP4430_VDD_IVA_OPPTURBO_UV 1291000 + +struct omap_volt_data omap443x_vdd_iva_volt_data[] = { + VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP50_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP100_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16), + VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +#define OMAP4430_VDD_CORE_OPP50_UV 962000 +#define OMAP4430_VDD_CORE_OPP100_UV 1127000 + +struct omap_volt_data omap443x_vdd_core_volt_data[] = { + VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP50_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP100_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +#define OMAP4460_VDD_MPU_OPP50_UV 1025000 +#define OMAP4460_VDD_MPU_OPP100_UV 1200000 +#define OMAP4460_VDD_MPU_OPPTURBO_UV 1313000 +#define OMAP4460_VDD_MPU_OPPNITRO_UV 1375000 + +struct omap_volt_data omap446x_vdd_mpu_volt_data[] = { + VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP50_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP100_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16), + VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23), + VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPNITRO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO, 0xfa, 0x27), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +#define OMAP4460_VDD_IVA_OPP50_UV 1025000 +#define OMAP4460_VDD_IVA_OPP100_UV 1200000 +#define OMAP4460_VDD_IVA_OPPTURBO_UV 1313000 +#define OMAP4460_VDD_IVA_OPPNITRO_UV 1375000 + +struct omap_volt_data omap446x_vdd_iva_volt_data[] = { + VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP50_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP100_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16), + VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23), + VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPNITRO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPNITRO, 0xfa, 0x23), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; + +#define OMAP4460_VDD_CORE_OPP50_UV 1025000 +#define OMAP4460_VDD_CORE_OPP100_UV 1200000 +#define OMAP4460_VDD_CORE_OPP100_OV_UV 1250000 + +struct omap_volt_data omap446x_vdd_core_volt_data[] = { + VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP50_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c), + VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16), + VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_OV_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100OV, 0xf9, 0x16), + VOLT_DATA_DEFINE(0, 0, 0, 0), +}; diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c new file mode 100644 index 000000000..b947bacf2 --- /dev/null +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -0,0 +1,576 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Legacy platform_data quirks + * + * Copyright (C) 2013 Texas Instruments + */ +#include <linux/clk.h> +#include <linux/davinci_emac.h> +#include <linux/gpio/machine.h> +#include <linux/gpio/consumer.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/of_platform.h> +#include <linux/mmc/card.h> +#include <linux/mmc/host.h> +#include <linux/power/smartreflex.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/fixed.h> + +#include <linux/platform_data/pinctrl-single.h> +#include <linux/platform_data/hsmmc-omap.h> +#include <linux/platform_data/iommu-omap.h> +#include <linux/platform_data/ti-sysc.h> +#include <linux/platform_data/wkup_m3.h> +#include <linux/platform_data/asoc-ti-mcbsp.h> +#include <linux/platform_data/ti-prm.h> + +#include "clockdomain.h" +#include "common.h" +#include "common-board-devices.h" +#include "control.h" +#include "omap_device.h" +#include "omap-secure.h" +#include "soc.h" + +static struct omap_hsmmc_platform_data __maybe_unused mmc_pdata[2]; + +struct pdata_init { + const char *compatible; + void (*fn)(void); +}; + +static struct of_dev_auxdata omap_auxdata_lookup[]; + +#ifdef CONFIG_MACH_NOKIA_N8X0 +static void __init omap2420_n8x0_legacy_init(void) +{ + omap_auxdata_lookup[0].platform_data = n8x0_legacy_init(); +} +#else +#define omap2420_n8x0_legacy_init NULL +#endif + +#ifdef CONFIG_ARCH_OMAP3 +/* + * Configures GPIOs 126, 127 and 129 to 1.8V mode instead of 3.0V + * mode for MMC1 in case bootloader did not configure things. + * Note that if the pins are used for MMC1, pbias-regulator + * manages the IO voltage. + */ +static void __init omap3_gpio126_127_129(void) +{ + u32 reg; + + reg = omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE); + reg &= ~OMAP343X_PBIASLITEVMODE1; + reg |= OMAP343X_PBIASLITEPWRDNZ1; + omap_ctrl_writel(reg, OMAP343X_CONTROL_PBIAS_LITE); + if (cpu_is_omap3630()) { + reg = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL); + reg |= OMAP36XX_GPIO_IO_PWRDNZ; + omap_ctrl_writel(reg, OMAP34XX_CONTROL_WKUP_CTRL); + } +} + +static void __init hsmmc2_internal_input_clk(void) +{ + u32 reg; + + reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); + reg |= OMAP2_MMCSDIO2ADPCLKISEL; + omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1); +} + +#ifdef CONFIG_OMAP_HWMOD +static struct iommu_platform_data omap3_iommu_pdata = { + .reset_name = "mmu", + .assert_reset = omap_device_assert_hardreset, + .deassert_reset = omap_device_deassert_hardreset, + .device_enable = omap_device_enable, + .device_idle = omap_device_idle, +}; + +static struct iommu_platform_data omap3_iommu_isp_pdata = { + .device_enable = omap_device_enable, + .device_idle = omap_device_idle, +}; +#endif + +static void __init omap3_sbc_t3x_usb_hub_init(char *hub_name, int idx) +{ + struct gpio_desc *d; + + /* This asserts the RESET line (reverse polarity) */ + d = gpiod_get_index(NULL, "reset", idx, GPIOD_OUT_HIGH); + if (IS_ERR(d)) { + pr_err("Unable to get T3x USB reset GPIO descriptor\n"); + return; + } + gpiod_set_consumer_name(d, hub_name); + gpiod_export(d, 0); + udelay(10); + /* De-assert RESET */ + gpiod_set_value(d, 0); + msleep(1); +} + +static struct gpiod_lookup_table omap3_sbc_t3x_usb_gpio_table = { + .dev_id = NULL, + .table = { + GPIO_LOOKUP_IDX("gpio-160-175", 7, "reset", 0, + GPIO_ACTIVE_LOW), + { } + }, +}; + +static void __init omap3_sbc_t3730_legacy_init(void) +{ + gpiod_add_lookup_table(&omap3_sbc_t3x_usb_gpio_table); + omap3_sbc_t3x_usb_hub_init("sb-t35 usb hub", 0); +} + +static void __init omap3_sbc_t3530_legacy_init(void) +{ + gpiod_add_lookup_table(&omap3_sbc_t3x_usb_gpio_table); + omap3_sbc_t3x_usb_hub_init("sb-t35 usb hub", 0); +} + +static void __init omap3_evm_legacy_init(void) +{ + hsmmc2_internal_input_clk(); +} + +static void am35xx_enable_emac_int(void) +{ + u32 v; + + v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); + v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | + AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); + omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); + omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ +} + +static void am35xx_disable_emac_int(void) +{ + u32 v; + + v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); + v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); + omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); + omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ +} + +static struct emac_platform_data am35xx_emac_pdata = { + .interrupt_enable = am35xx_enable_emac_int, + .interrupt_disable = am35xx_disable_emac_int, +}; + +static void __init am35xx_emac_reset(void) +{ + u32 v; + + v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); + v &= ~AM35XX_CPGMACSS_SW_RST; + omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); + omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ +} + +static struct gpiod_lookup_table cm_t3517_wlan_gpio_table = { + .dev_id = NULL, + .table = { + GPIO_LOOKUP("gpio-48-53", 8, "power", + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-0-15", 4, "noe", + GPIO_ACTIVE_HIGH), + { } + }, +}; + +static void __init omap3_sbc_t3517_wifi_init(void) +{ + struct gpio_desc *d; + + gpiod_add_lookup_table(&cm_t3517_wlan_gpio_table); + + /* This asserts the RESET line (reverse polarity) */ + d = gpiod_get(NULL, "power", GPIOD_OUT_HIGH); + if (IS_ERR(d)) { + pr_err("Unable to get CM T3517 WLAN power GPIO descriptor\n"); + } else { + gpiod_set_consumer_name(d, "wlan pwr"); + gpiod_export(d, 0); + } + + d = gpiod_get(NULL, "noe", GPIOD_OUT_HIGH); + if (IS_ERR(d)) { + pr_err("Unable to get CM T3517 WLAN XCVR NOE GPIO descriptor\n"); + } else { + gpiod_set_consumer_name(d, "xcvr noe"); + gpiod_export(d, 0); + } + msleep(100); + gpiod_set_value(d, 0); +} + +static struct gpiod_lookup_table omap3_sbc_t3517_usb_gpio_table = { + .dev_id = NULL, + .table = { + GPIO_LOOKUP_IDX("gpio-144-159", 8, "reset", 0, + GPIO_ACTIVE_LOW), + GPIO_LOOKUP_IDX("gpio-96-111", 2, "reset", 1, + GPIO_ACTIVE_LOW), + { } + }, +}; + +static void __init omap3_sbc_t3517_legacy_init(void) +{ + gpiod_add_lookup_table(&omap3_sbc_t3517_usb_gpio_table); + omap3_sbc_t3x_usb_hub_init("cm-t3517 usb hub", 0); + omap3_sbc_t3x_usb_hub_init("sb-t35 usb hub", 1); + am35xx_emac_reset(); + hsmmc2_internal_input_clk(); + omap3_sbc_t3517_wifi_init(); +} + +static void __init am3517_evm_legacy_init(void) +{ + am35xx_emac_reset(); +} + +static void __init nokia_n900_legacy_init(void) +{ + hsmmc2_internal_input_clk(); + mmc_pdata[0].name = "external"; + mmc_pdata[1].name = "internal"; + + if (omap_type() != OMAP2_DEVICE_TYPE_GP) { + if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) { + pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); + /* set IBE to 1 */ + rx51_secure_update_aux_cr(BIT(6), 0); + } else { + pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n"); + pr_warn("Thumb binaries may crash randomly without this workaround\n"); + } + } +} + +static void __init omap3_tao3530_legacy_init(void) +{ + hsmmc2_internal_input_clk(); +} + +static void __init omap3_logicpd_torpedo_init(void) +{ + omap3_gpio126_127_129(); +} + +/* omap3pandora legacy devices */ + +static struct platform_device pandora_backlight = { + .name = "pandora-backlight", + .id = -1, +}; + +static struct gpiod_lookup_table pandora_soc_audio_gpios = { + .dev_id = "soc-audio", + .table = { + GPIO_LOOKUP("gpio-112-127", 6, "dac", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-0-15", 14, "amp", GPIO_ACTIVE_HIGH), + { } + }, +}; + +static void __init omap3_pandora_legacy_init(void) +{ + platform_device_register(&pandora_backlight); + gpiod_add_lookup_table(&pandora_soc_audio_gpios); +} +#endif /* CONFIG_ARCH_OMAP3 */ + +#ifdef CONFIG_SOC_DRA7XX +static struct iommu_platform_data dra7_ipu1_dsp_iommu_pdata = { + .set_pwrdm_constraint = omap_iommu_set_pwrdm_constraint, +}; +#endif + +static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk) +{ + struct clk_hw *hw = __clk_get_hw(clk); + struct clockdomain *clkdm = NULL; + struct clk_hw_omap *hwclk; + + hwclk = to_clk_hw_omap(hw); + if (!omap2_clk_is_hw_omap(hw)) + return NULL; + + if (hwclk && hwclk->clkdm_name) + clkdm = clkdm_lookup(hwclk->clkdm_name); + + return clkdm; +} + +/** + * ti_sysc_clkdm_init - find clockdomain based on clock + * @fck: device functional clock + * @ick: device interface clock + * @dev: struct device + * + * Populate clockdomain based on clock. It is needed for + * clkdm_deny_idle() and clkdm_allow_idle() for blocking clockdomain + * clockdomain idle during reset, enable and idle. + * + * Note that we assume interconnect driver manages the clocks + * and do not need to populate oh->_clk for dynamically + * allocated modules. + */ +static int ti_sysc_clkdm_init(struct device *dev, + struct clk *fck, struct clk *ick, + struct ti_sysc_cookie *cookie) +{ + if (!IS_ERR(fck)) + cookie->clkdm = ti_sysc_find_one_clockdomain(fck); + if (cookie->clkdm) + return 0; + if (!IS_ERR(ick)) + cookie->clkdm = ti_sysc_find_one_clockdomain(ick); + if (cookie->clkdm) + return 0; + + return -ENODEV; +} + +static void ti_sysc_clkdm_deny_idle(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (cookie->clkdm) + clkdm_deny_idle(cookie->clkdm); +} + +static void ti_sysc_clkdm_allow_idle(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (cookie->clkdm) + clkdm_allow_idle(cookie->clkdm); +} + +#ifdef CONFIG_OMAP_HWMOD +static int ti_sysc_enable_module(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (!cookie->data) + return -EINVAL; + + return omap_hwmod_enable(cookie->data); +} + +static int ti_sysc_idle_module(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (!cookie->data) + return -EINVAL; + + return omap_hwmod_idle(cookie->data); +} + +static int ti_sysc_shutdown_module(struct device *dev, + const struct ti_sysc_cookie *cookie) +{ + if (!cookie->data) + return -EINVAL; + + return omap_hwmod_shutdown(cookie->data); +} +#endif /* CONFIG_OMAP_HWMOD */ + +static bool ti_sysc_soc_type_gp(void) +{ + return omap_type() == OMAP2_DEVICE_TYPE_GP; +} + +static struct of_dev_auxdata omap_auxdata_lookup[]; + +static struct ti_sysc_platform_data ti_sysc_pdata = { + .auxdata = omap_auxdata_lookup, + .soc_type_gp = ti_sysc_soc_type_gp, + .init_clockdomain = ti_sysc_clkdm_init, + .clkdm_deny_idle = ti_sysc_clkdm_deny_idle, + .clkdm_allow_idle = ti_sysc_clkdm_allow_idle, +#ifdef CONFIG_OMAP_HWMOD + .init_module = omap_hwmod_init_module, + .enable_module = ti_sysc_enable_module, + .idle_module = ti_sysc_idle_module, + .shutdown_module = ti_sysc_shutdown_module, +#endif +}; + +static struct pcs_pdata pcs_pdata; + +void omap_pcs_legacy_init(int irq, void (*rearm)(void)) +{ + pcs_pdata.irq = irq; + pcs_pdata.rearm = rearm; +} + +static struct ti_prm_platform_data ti_prm_pdata = { + .clkdm_deny_idle = clkdm_deny_idle, + .clkdm_allow_idle = clkdm_allow_idle, + .clkdm_lookup = clkdm_lookup, +}; + +#if defined(CONFIG_ARCH_OMAP3) && IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) +static struct omap_mcbsp_platform_data mcbsp_pdata; +static void __init omap3_mcbsp_init(void) +{ + omap3_mcbsp_init_pdata_callback(&mcbsp_pdata); +} +#else +static void __init omap3_mcbsp_init(void) {} +#endif + +/* + * Few boards still need auxdata populated before we populate + * the dev entries in of_platform_populate(). + */ +static struct pdata_init auxdata_quirks[] __initdata = { +#ifdef CONFIG_SOC_OMAP2420 + { "nokia,n800", omap2420_n8x0_legacy_init, }, + { "nokia,n810", omap2420_n8x0_legacy_init, }, + { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, +#endif + { /* sentinel */ }, +}; + +struct omap_sr_data __maybe_unused omap_sr_pdata[OMAP_SR_NR]; + +static struct of_dev_auxdata omap_auxdata_lookup[] = { +#ifdef CONFIG_MACH_NOKIA_N8X0 + OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL), + OF_DEV_AUXDATA("menelaus", 0x72, "1-0072", &n8x0_menelaus_platform_data), +#endif +#ifdef CONFIG_ARCH_OMAP3 + OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu", + &omap3_iommu_pdata), + OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu", + &omap3_iommu_isp_pdata), + OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000, + "480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), + OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000, + "480c9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), + OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x4809c000, "4809c000.mmc", &mmc_pdata[0]), + OF_DEV_AUXDATA("ti,omap3-hsmmc", 0x480b4000, "480b4000.mmc", &mmc_pdata[1]), + /* Only on am3517 */ + OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), + OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", + &am35xx_emac_pdata), + OF_DEV_AUXDATA("nokia,n900-rom-rng", 0, NULL, rx51_secure_rng_call), + /* McBSP modules with sidetone core */ +#if IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP) + OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49022000, "49022000.mcbsp", &mcbsp_pdata), + OF_DEV_AUXDATA("ti,omap3-mcbsp", 0x49024000, "49024000.mcbsp", &mcbsp_pdata), +#endif +#endif +#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) + OF_DEV_AUXDATA("ti,omap4-smartreflex-iva", 0x4a0db000, + "4a0db000.smartreflex", &omap_sr_pdata[OMAP_SR_IVA]), + OF_DEV_AUXDATA("ti,omap4-smartreflex-core", 0x4a0dd000, + "4a0dd000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]), + OF_DEV_AUXDATA("ti,omap4-smartreflex-mpu", 0x4a0d9000, + "4a0d9000.smartreflex", &omap_sr_pdata[OMAP_SR_MPU]), +#endif +#ifdef CONFIG_SOC_DRA7XX + OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x40d01000, "40d01000.mmu", + &dra7_ipu1_dsp_iommu_pdata), + OF_DEV_AUXDATA("ti,dra7-dsp-iommu", 0x41501000, "41501000.mmu", + &dra7_ipu1_dsp_iommu_pdata), + OF_DEV_AUXDATA("ti,dra7-iommu", 0x58882000, "58882000.mmu", + &dra7_ipu1_dsp_iommu_pdata), +#endif + /* Common auxdata */ + OF_DEV_AUXDATA("simple-pm-bus", 0, NULL, omap_auxdata_lookup), + OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata), + OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata), + OF_DEV_AUXDATA("ti,omap-prm-inst", 0, NULL, &ti_prm_pdata), + OF_DEV_AUXDATA("ti,omap-sdma", 0, NULL, &dma_plat_info), + { /* sentinel */ }, +}; + +/* + * Few boards still need to initialize some legacy devices with + * platform data until the drivers support device tree. + */ +static struct pdata_init pdata_quirks[] __initdata = { +#ifdef CONFIG_ARCH_OMAP3 + { "compulab,omap3-sbc-t3517", omap3_sbc_t3517_legacy_init, }, + { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init, }, + { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, + { "nokia,omap3-n900", nokia_n900_legacy_init, }, + { "nokia,omap3-n9", hsmmc2_internal_input_clk, }, + { "nokia,omap3-n950", hsmmc2_internal_input_clk, }, + { "logicpd,dm3730-torpedo-devkit", omap3_logicpd_torpedo_init, }, + { "ti,omap3-evm-37xx", omap3_evm_legacy_init, }, + { "ti,am3517-evm", am3517_evm_legacy_init, }, + { "technexion,omap3-tao3530", omap3_tao3530_legacy_init, }, + { "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, }, + { "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, }, +#endif + { /* sentinel */ }, +}; + +static void pdata_quirks_check(struct pdata_init *quirks) +{ + while (quirks->compatible) { + if (of_machine_is_compatible(quirks->compatible)) { + if (quirks->fn) + quirks->fn(); + } + quirks++; + } +} + +static const char * const pdata_quirks_init_nodes[] = { + "prcm", + "prm", +}; + +static void __init +pdata_quirks_init_clocks(const struct of_device_id *omap_dt_match_table) +{ + struct device_node *np; + int i; + + for (i = 0; i < ARRAY_SIZE(pdata_quirks_init_nodes); i++) { + np = of_find_node_by_name(NULL, pdata_quirks_init_nodes[i]); + if (!np) + continue; + + of_platform_populate(np, omap_dt_match_table, + omap_auxdata_lookup, NULL); + + of_node_put(np); + } +} + +void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) +{ + /* + * We still need this for omap2420 and omap3 PM to work, others are + * using drivers/misc/sram.c already. + */ + if (of_machine_is_compatible("ti,omap2420") || + of_machine_is_compatible("ti,omap3")) + omap_sdrc_init(NULL, NULL); + + if (of_machine_is_compatible("ti,omap3")) + omap3_mcbsp_init(); + pdata_quirks_check(auxdata_quirks); + + pdata_quirks_init_clocks(omap_dt_match_table); + + of_platform_populate(NULL, omap_dt_match_table, + omap_auxdata_lookup, NULL); + pdata_quirks_check(pdata_quirks); +} diff --git a/arch/arm/mach-omap2/pm-asm-offsets.c b/arch/arm/mach-omap2/pm-asm-offsets.c new file mode 100644 index 000000000..d8ae8a85b --- /dev/null +++ b/arch/arm/mach-omap2/pm-asm-offsets.c @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * TI AM33XX and AM43XX PM Assembly Offsets + * + * Copyright (C) 2017-2018 Texas Instruments Inc. + */ + +#include <linux/kbuild.h> +#include <linux/platform_data/pm33xx.h> +#include <linux/ti-emif-sram.h> + +int main(void) +{ + ti_emif_asm_offsets(); + + DEFINE(AMX3_PM_WFI_FLAGS_OFFSET, + offsetof(struct am33xx_pm_sram_data, wfi_flags)); + DEFINE(AMX3_PM_L2_AUX_CTRL_VAL_OFFSET, + offsetof(struct am33xx_pm_sram_data, l2_aux_ctrl_val)); + DEFINE(AMX3_PM_L2_PREFETCH_CTRL_VAL_OFFSET, + offsetof(struct am33xx_pm_sram_data, l2_prefetch_ctrl_val)); + DEFINE(AMX3_PM_SRAM_DATA_SIZE, sizeof(struct am33xx_pm_sram_data)); + + BLANK(); + + DEFINE(AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET, + offsetof(struct am33xx_pm_ro_sram_data, amx3_pm_sram_data_virt)); + DEFINE(AMX3_PM_RO_SRAM_DATA_PHYS_OFFSET, + offsetof(struct am33xx_pm_ro_sram_data, amx3_pm_sram_data_phys)); + DEFINE(AMX3_PM_RTC_BASE_VIRT_OFFSET, + offsetof(struct am33xx_pm_ro_sram_data, rtc_base_virt)); + DEFINE(AMX3_PM_RO_SRAM_DATA_SIZE, + sizeof(struct am33xx_pm_ro_sram_data)); + + return 0; +} diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c new file mode 100644 index 000000000..b43eab987 --- /dev/null +++ b/arch/arm/mach-omap2/pm-debug.c @@ -0,0 +1,244 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP Power Management debug routines + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Copyright (C) 2006-2008 Nokia Corporation + * + * Written by: + * Richard Woodruff <r-woodruff2@ti.com> + * Tony Lindgren + * Juha Yrjola + * Amit Kucheria <amit.kucheria@nokia.com> + * Igor Stoppa <igor.stoppa@nokia.com> + * Jouni Hogander + * + * Based on pm.c for omap2 + */ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/sched/clock.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/slab.h> + +#include "clock.h" +#include "powerdomain.h" +#include "clockdomain.h" + +#include "soc.h" +#include "cm2xxx_3xxx.h" +#include "prm2xxx_3xxx.h" +#include "pm.h" + +#ifdef CONFIG_DEBUG_FS +#include <linux/debugfs.h> +#include <linux/seq_file.h> + +static int pm_dbg_init_done; + +static int pm_dbg_init(void); + +static const char pwrdm_state_names[][PWRDM_MAX_PWRSTS] = { + "OFF", + "RET", + "INA", + "ON" +}; + +void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) +{ + s64 t; + + if (!pm_dbg_init_done) + return ; + + /* Update timer for previous state */ + t = sched_clock(); + + pwrdm->state_timer[prev] += t - pwrdm->timer; + + pwrdm->timer = t; +} + +static int clkdm_dbg_show_counter(struct clockdomain *clkdm, void *user) +{ + struct seq_file *s = (struct seq_file *)user; + + if (strcmp(clkdm->name, "emu_clkdm") == 0 || + strcmp(clkdm->name, "wkup_clkdm") == 0 || + strncmp(clkdm->name, "dpll", 4) == 0) + return 0; + + seq_printf(s, "%s->%s (%d)\n", clkdm->name, clkdm->pwrdm.ptr->name, + clkdm->usecount); + + return 0; +} + +static int pwrdm_dbg_show_counter(struct powerdomain *pwrdm, void *user) +{ + struct seq_file *s = (struct seq_file *)user; + int i; + + if (strcmp(pwrdm->name, "emu_pwrdm") == 0 || + strcmp(pwrdm->name, "wkup_pwrdm") == 0 || + strncmp(pwrdm->name, "dpll", 4) == 0) + return 0; + + if (pwrdm->state != pwrdm_read_pwrst(pwrdm)) + printk(KERN_ERR "pwrdm state mismatch(%s) %d != %d\n", + pwrdm->name, pwrdm->state, pwrdm_read_pwrst(pwrdm)); + + seq_printf(s, "%s (%s)", pwrdm->name, + pwrdm_state_names[pwrdm->state]); + for (i = 0; i < PWRDM_MAX_PWRSTS; i++) + seq_printf(s, ",%s:%d", pwrdm_state_names[i], + pwrdm->state_counter[i]); + + seq_printf(s, ",RET-LOGIC-OFF:%d", pwrdm->ret_logic_off_counter); + for (i = 0; i < pwrdm->banks; i++) + seq_printf(s, ",RET-MEMBANK%d-OFF:%d", i + 1, + pwrdm->ret_mem_off_counter[i]); + + seq_putc(s, '\n'); + return 0; +} + +static int pwrdm_dbg_show_timer(struct powerdomain *pwrdm, void *user) +{ + struct seq_file *s = (struct seq_file *)user; + int i; + + if (strcmp(pwrdm->name, "emu_pwrdm") == 0 || + strcmp(pwrdm->name, "wkup_pwrdm") == 0 || + strncmp(pwrdm->name, "dpll", 4) == 0) + return 0; + + pwrdm_state_switch(pwrdm); + + seq_printf(s, "%s (%s)", pwrdm->name, + pwrdm_state_names[pwrdm->state]); + + for (i = 0; i < 4; i++) + seq_printf(s, ",%s:%lld", pwrdm_state_names[i], + pwrdm->state_timer[i]); + + seq_putc(s, '\n'); + return 0; +} + +static int pm_dbg_counters_show(struct seq_file *s, void *unused) +{ + pwrdm_for_each(pwrdm_dbg_show_counter, s); + clkdm_for_each(clkdm_dbg_show_counter, s); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(pm_dbg_counters); + +static int pm_dbg_timers_show(struct seq_file *s, void *unused) +{ + pwrdm_for_each(pwrdm_dbg_show_timer, s); + return 0; +} +DEFINE_SHOW_ATTRIBUTE(pm_dbg_timers); + +static int pwrdm_suspend_get(void *data, u64 *val) +{ + int ret = -EINVAL; + + if (cpu_is_omap34xx()) + ret = omap3_pm_get_suspend_state((struct powerdomain *)data); + *val = ret; + + if (ret >= 0) + return 0; + return *val; +} + +static int pwrdm_suspend_set(void *data, u64 val) +{ + if (cpu_is_omap34xx()) + return omap3_pm_set_suspend_state( + (struct powerdomain *)data, (int)val); + return -EINVAL; +} + +DEFINE_DEBUGFS_ATTRIBUTE(pwrdm_suspend_fops, pwrdm_suspend_get, + pwrdm_suspend_set, "%llu\n"); + +static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir) +{ + int i; + s64 t; + struct dentry *d; + + t = sched_clock(); + + for (i = 0; i < 4; i++) + pwrdm->state_timer[i] = 0; + + pwrdm->timer = t; + + if (strncmp(pwrdm->name, "dpll", 4) == 0) + return 0; + + d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir); + debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d, pwrdm, + &pwrdm_suspend_fops); + + return 0; +} + +static int option_get(void *data, u64 *val) +{ + u32 *option = data; + + *val = *option; + + return 0; +} + +static int option_set(void *data, u64 val) +{ + u32 *option = data; + + *option = val; + + if (option == &enable_off_mode) { + if (cpu_is_omap34xx()) + omap3_pm_off_mode_enable(val); + } + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(pm_dbg_option_fops, option_get, option_set, "%llu\n"); + +static int __init pm_dbg_init(void) +{ + struct dentry *d; + + if (pm_dbg_init_done) + return 0; + + d = debugfs_create_dir("pm_debug", NULL); + + debugfs_create_file("count", 0444, d, NULL, &pm_dbg_counters_fops); + debugfs_create_file("time", 0444, d, NULL, &pm_dbg_timers_fops); + + pwrdm_for_each(pwrdms_setup, (void *)d); + + debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d, + &enable_off_mode, &pm_dbg_option_fops); + pm_dbg_init_done = 1; + + return 0; +} +omap_arch_initcall(pm_dbg_init); + +#endif diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c new file mode 100644 index 000000000..700869c9e --- /dev/null +++ b/arch/arm/mach-omap2/pm.c @@ -0,0 +1,161 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * pm.c - Common OMAP2+ power management-related code + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/pm_opp.h> +#include <linux/export.h> +#include <linux/suspend.h> +#include <linux/clk.h> +#include <linux/cpu.h> + +#include <asm/system_misc.h> + +#include "omap_device.h" +#include "common.h" + +#include "soc.h" +#include "prcm-common.h" +#include "voltage.h" +#include "powerdomain.h" +#include "clockdomain.h" +#include "pm.h" + +u32 enable_off_mode; + +#ifdef CONFIG_SUSPEND +/* + * omap_pm_suspend: points to a function that does the SoC-specific + * suspend work + */ +static int (*omap_pm_suspend)(void); +#endif + +#ifdef CONFIG_PM +/** + * struct omap2_oscillator - Describe the board main oscillator latencies + * @startup_time: oscillator startup latency + * @shutdown_time: oscillator shutdown latency + */ +struct omap2_oscillator { + u32 startup_time; + u32 shutdown_time; +}; + +static struct omap2_oscillator oscillator = { + .startup_time = ULONG_MAX, + .shutdown_time = ULONG_MAX, +}; + +void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) +{ + if (!tstart || !tshut) + return; + + *tstart = oscillator.startup_time; + *tshut = oscillator.shutdown_time; +} +#endif + +int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused) +{ + clkdm_allow_idle(clkdm); + return 0; +} + +#ifdef CONFIG_SUSPEND +static int omap_pm_enter(suspend_state_t suspend_state) +{ + int ret = 0; + + if (!omap_pm_suspend) + return -ENOENT; /* XXX doublecheck */ + + switch (suspend_state) { + case PM_SUSPEND_MEM: + ret = omap_pm_suspend(); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static int omap_pm_begin(suspend_state_t state) +{ + cpu_idle_poll_ctrl(true); + if (soc_is_omap34xx()) + omap_prcm_irq_prepare(); + return 0; +} + +static void omap_pm_end(void) +{ + cpu_idle_poll_ctrl(false); +} + +static void omap_pm_wake(void) +{ + if (soc_is_omap34xx()) + omap_prcm_irq_complete(); +} + +static const struct platform_suspend_ops omap_pm_ops = { + .begin = omap_pm_begin, + .end = omap_pm_end, + .enter = omap_pm_enter, + .wake = omap_pm_wake, + .valid = suspend_valid_only_mem, +}; + +/** + * omap_common_suspend_init - Set common suspend routines for OMAP SoCs + * @pm_suspend: function pointer to SoC specific suspend function + */ +void omap_common_suspend_init(void *pm_suspend) +{ + omap_pm_suspend = pm_suspend; + suspend_set_ops(&omap_pm_ops); +} +#endif /* CONFIG_SUSPEND */ + +int __maybe_unused omap_pm_nop_init(void) +{ + return 0; +} + +int (*omap_pm_soc_init)(void); + +static int __init omap2_common_pm_late_init(void) +{ + int error; + + if (!omap_pm_soc_init) + return 0; + + /* Init the voltage layer */ + omap3_twl_init(); + omap4_twl_init(); + omap4_cpcap_init(); + omap_voltage_late_init(); + + /* Smartreflex device init */ + omap_devinit_smartreflex(); + + error = omap_pm_soc_init(); + if (error) + pr_warn("%s: pm soc init failed: %i\n", __func__, error); + + omap2_clk_enable_autoidle_all(); + + return 0; +} +omap_late_initcall(omap2_common_pm_late_init); diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h new file mode 100644 index 000000000..f97ff93f2 --- /dev/null +++ b/arch/arm/mach-omap2/pm.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2/3 Power Management Routines + * + * Copyright (C) 2008 Nokia Corporation + * Jouni Hogander + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PM_H +#define __ARCH_ARM_MACH_OMAP2_PM_H + +#include <linux/err.h> + +#include "powerdomain.h" + +#ifdef CONFIG_CPU_IDLE +extern int __init omap3_idle_init(void); +extern int __init omap4_idle_init(void); +#else +static inline int omap3_idle_init(void) +{ + return 0; +} + +static inline int omap4_idle_init(void) +{ + return 0; +} +#endif + +extern void *omap3_secure_ram_storage; +extern void omap3_pm_off_mode_enable(int); +extern void omap_sram_idle(bool rcuidle); +extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused); + +extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); +extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); + +extern u32 enable_off_mode; + +#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) +extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); +#else +#define pm_dbg_update_time(pwrdm, prev) do {} while (0); +#endif /* CONFIG_PM_DEBUG */ + +/* 24xx */ +extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, + void __iomem *sdrc_power); +extern unsigned int omap24xx_cpu_suspend_sz; + +/* 3xxx */ +extern void omap34xx_cpu_suspend(int save_state); + +/* omap3_do_wfi function pointer and size, for copy to SRAM */ +extern void omap3_do_wfi(void); +extern unsigned int omap3_do_wfi_sz; +/* ... and its pointer from SRAM after copy */ +extern void (*omap3_do_wfi_sram)(void); + +extern struct am33xx_pm_sram_addr am33xx_pm_sram; +extern struct am33xx_pm_sram_addr am43xx_pm_sram; + +extern void omap3_save_scratchpad_contents(void); + +#define PM_RTA_ERRATUM_i608 (1 << 0) +#define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) +#define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) + +#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) +extern u16 pm34xx_errata; +#define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id)) +extern void enable_omap3630_toggle_l2_on_restore(void); +#else +#define IS_PM34XX_ERRATUM(id) 0 +static inline void enable_omap3630_toggle_l2_on_restore(void) { } +#endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */ + +#define PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD (1 << 0) +#define PM_OMAP4_CPU_OSWR_DISABLE (1 << 1) + +#if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) ||\ + defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)) +extern u16 pm44xx_errata; +#define IS_PM44XX_ERRATUM(id) (pm44xx_errata & (id)) +#else +#define IS_PM44XX_ERRATUM(id) 0 +#endif + +#define OMAP4_VP_CONFIG_ERROROFFSET 0x00 +#define OMAP4_VP_VSTEPMIN_VSTEPMIN 0x01 +#define OMAP4_VP_VSTEPMAX_VSTEPMAX 0x04 +#define OMAP4_VP_VLIMITTO_TIMEOUT_US 200 + +#ifdef CONFIG_POWER_AVS_OMAP +extern int omap_devinit_smartreflex(void); +#else +static inline int omap_devinit_smartreflex(void) +{ + return -EINVAL; +} +#endif + +#ifdef CONFIG_TWL4030_CORE +extern int omap3_twl_init(void); +extern int omap4_twl_init(void); +#else +static inline int omap3_twl_init(void) +{ + return -EINVAL; +} +static inline int omap4_twl_init(void) +{ + return -EINVAL; +} +#endif + +#if IS_ENABLED(CONFIG_MFD_CPCAP) +extern int omap4_cpcap_init(void); +#else +static inline int omap4_cpcap_init(void) +{ + return -EINVAL; +} +#endif + +#ifdef CONFIG_PM +extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut); +#else +static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { *tstart = *tshut = 0; } +#endif + +#ifdef CONFIG_SUSPEND +void omap_common_suspend_init(void *pm_suspend); +#else +static inline void omap_common_suspend_init(void *pm_suspend) +{ +} +#endif /* CONFIG_SUSPEND */ +#endif diff --git a/arch/arm/mach-omap2/pm33xx-core.c b/arch/arm/mach-omap2/pm33xx-core.c new file mode 100644 index 000000000..865b5251e --- /dev/null +++ b/arch/arm/mach-omap2/pm33xx-core.c @@ -0,0 +1,442 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * AM33XX Arch Power Management Routines + * + * Copyright (C) 2016-2018 Texas Instruments Incorporated - https://www.ti.com/ + * Dave Gerlach + */ + +#include <linux/cpuidle.h> +#include <linux/platform_data/pm33xx.h> +#include <linux/suspend.h> +#include <asm/cpuidle.h> +#include <asm/smp_scu.h> +#include <asm/suspend.h> +#include <linux/errno.h> +#include <linux/clk.h> +#include <linux/cpu.h> +#include <linux/platform_data/gpio-omap.h> +#include <linux/wkup_m3_ipc.h> +#include <linux/of.h> +#include <linux/rtc.h> + +#include "cm33xx.h" +#include "common.h" +#include "control.h" +#include "clockdomain.h" +#include "iomap.h" +#include "pm.h" +#include "powerdomain.h" +#include "prm33xx.h" +#include "soc.h" +#include "sram.h" +#include "omap-secure.h" + +static struct powerdomain *cefuse_pwrdm, *gfx_pwrdm, *per_pwrdm, *mpu_pwrdm; +static struct clockdomain *gfx_l4ls_clkdm; +static void __iomem *scu_base; + +static int (*idle_fn)(u32 wfi_flags); + +struct amx3_idle_state { + int wfi_flags; +}; + +static struct amx3_idle_state *idle_states; + +static int am43xx_map_scu(void) +{ + scu_base = ioremap(scu_a9_get_base(), SZ_256); + + if (!scu_base) + return -ENOMEM; + + return 0; +} + +static int am33xx_check_off_mode_enable(void) +{ + if (enable_off_mode) + pr_warn("WARNING: This platform does not support off-mode, entering DeepSleep suspend.\n"); + + /* off mode not supported on am335x so return 0 always */ + return 0; +} + +static int am43xx_check_off_mode_enable(void) +{ + /* + * Check for am437x-gp-evm which has the right Hardware design to + * support this mode reliably. + */ + if (of_machine_is_compatible("ti,am437x-gp-evm") && enable_off_mode) + return enable_off_mode; + else if (enable_off_mode) + pr_warn("WARNING: This platform does not support off-mode, entering DeepSleep suspend.\n"); + + return 0; +} + +static int amx3_common_init(int (*idle)(u32 wfi_flags)) +{ + gfx_pwrdm = pwrdm_lookup("gfx_pwrdm"); + per_pwrdm = pwrdm_lookup("per_pwrdm"); + mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); + + if ((!gfx_pwrdm) || (!per_pwrdm) || (!mpu_pwrdm)) + return -ENODEV; + + (void)clkdm_for_each(omap_pm_clkdms_setup, NULL); + + /* CEFUSE domain can be turned off post bootup */ + cefuse_pwrdm = pwrdm_lookup("cefuse_pwrdm"); + if (!cefuse_pwrdm) + pr_err("PM: Failed to get cefuse_pwrdm\n"); + else if (omap_type() != OMAP2_DEVICE_TYPE_GP) + pr_info("PM: Leaving EFUSE power domain active\n"); + else + omap_set_pwrdm_state(cefuse_pwrdm, PWRDM_POWER_OFF); + + idle_fn = idle; + + return 0; +} + +static int am33xx_suspend_init(int (*idle)(u32 wfi_flags)) +{ + gfx_l4ls_clkdm = clkdm_lookup("gfx_l4ls_gfx_clkdm"); + + if (!gfx_l4ls_clkdm) { + pr_err("PM: Cannot lookup gfx_l4ls_clkdm clockdomains\n"); + return -ENODEV; + } + + return amx3_common_init(idle); +} + +static int am43xx_suspend_init(int (*idle)(u32 wfi_flags)) +{ + int ret = 0; + + ret = am43xx_map_scu(); + if (ret) { + pr_err("PM: Could not ioremap SCU\n"); + return ret; + } + + ret = amx3_common_init(idle); + + return ret; +} + +static int amx3_suspend_deinit(void) +{ + idle_fn = NULL; + return 0; +} + +static void amx3_pre_suspend_common(void) +{ + omap_set_pwrdm_state(gfx_pwrdm, PWRDM_POWER_OFF); +} + +static void amx3_post_suspend_common(void) +{ + int status; + /* + * Because gfx_pwrdm is the only one under MPU control, + * comment on transition status + */ + status = pwrdm_read_pwrst(gfx_pwrdm); + if (status != PWRDM_POWER_OFF) + pr_err("PM: GFX domain did not transition: %x\n", status); +} + +static int am33xx_suspend(unsigned int state, int (*fn)(unsigned long), + unsigned long args) +{ + int ret = 0; + + amx3_pre_suspend_common(); + ret = cpu_suspend(args, fn); + amx3_post_suspend_common(); + + /* + * BUG: GFX_L4LS clock domain needs to be woken up to + * ensure thet L4LS clock domain does not get stuck in + * transition. If that happens L3 module does not get + * disabled, thereby leading to PER power domain + * transition failing + */ + + clkdm_wakeup(gfx_l4ls_clkdm); + clkdm_sleep(gfx_l4ls_clkdm); + + return ret; +} + +static int am43xx_suspend(unsigned int state, int (*fn)(unsigned long), + unsigned long args) +{ + int ret = 0; + + /* Suspend secure side on HS devices */ + if (omap_type() != OMAP2_DEVICE_TYPE_GP) { + if (optee_available) + omap_smccc_smc(AM43xx_PPA_SVC_PM_SUSPEND, 0); + else + omap_secure_dispatcher(AM43xx_PPA_SVC_PM_SUSPEND, + FLAG_START_CRITICAL, + 0, 0, 0, 0, 0); + } + + amx3_pre_suspend_common(); + scu_power_mode(scu_base, SCU_PM_POWEROFF); + ret = cpu_suspend(args, fn); + scu_power_mode(scu_base, SCU_PM_NORMAL); + + if (!am43xx_check_off_mode_enable()) + amx3_post_suspend_common(); + + /* + * Resume secure side on HS devices. + * + * Note that even on systems with OP-TEE available this resume call is + * issued to the ROM. This is because upon waking from suspend the ROM + * is restored as the secure monitor. On systems with OP-TEE ROM will + * restore OP-TEE during this call. + */ + if (omap_type() != OMAP2_DEVICE_TYPE_GP) + omap_secure_dispatcher(AM43xx_PPA_SVC_PM_RESUME, + FLAG_START_CRITICAL, + 0, 0, 0, 0, 0); + + return ret; +} + +static int am33xx_cpu_suspend(int (*fn)(unsigned long), unsigned long args) +{ + int ret = 0; + + if (omap_irq_pending() || need_resched()) + return ret; + + ret = cpu_suspend(args, fn); + + return ret; +} + +static int am43xx_cpu_suspend(int (*fn)(unsigned long), unsigned long args) +{ + int ret = 0; + + if (!scu_base) + return 0; + + scu_power_mode(scu_base, SCU_PM_DORMANT); + ret = cpu_suspend(args, fn); + scu_power_mode(scu_base, SCU_PM_NORMAL); + + return ret; +} + +static void amx3_begin_suspend(void) +{ + cpu_idle_poll_ctrl(true); +} + +static void amx3_finish_suspend(void) +{ + cpu_idle_poll_ctrl(false); +} + + +static struct am33xx_pm_sram_addr *amx3_get_sram_addrs(void) +{ + if (soc_is_am33xx()) + return &am33xx_pm_sram; + else if (soc_is_am437x()) + return &am43xx_pm_sram; + else + return NULL; +} + +static void am43xx_save_context(void) +{ +} + +static void am33xx_save_context(void) +{ + omap_intc_save_context(); +} + +static void am33xx_restore_context(void) +{ + omap_intc_restore_context(); +} + +static void am43xx_restore_context(void) +{ + /* + * HACK: restore dpll_per_clkdcoldo register contents, to avoid + * breaking suspend-resume + */ + writel_relaxed(0x0, AM33XX_L4_WK_IO_ADDRESS(0x44df2e14)); +} + +static struct am33xx_pm_platform_data am33xx_ops = { + .init = am33xx_suspend_init, + .deinit = amx3_suspend_deinit, + .soc_suspend = am33xx_suspend, + .cpu_suspend = am33xx_cpu_suspend, + .begin_suspend = amx3_begin_suspend, + .finish_suspend = amx3_finish_suspend, + .get_sram_addrs = amx3_get_sram_addrs, + .save_context = am33xx_save_context, + .restore_context = am33xx_restore_context, + .check_off_mode_enable = am33xx_check_off_mode_enable, +}; + +static struct am33xx_pm_platform_data am43xx_ops = { + .init = am43xx_suspend_init, + .deinit = amx3_suspend_deinit, + .soc_suspend = am43xx_suspend, + .cpu_suspend = am43xx_cpu_suspend, + .begin_suspend = amx3_begin_suspend, + .finish_suspend = amx3_finish_suspend, + .get_sram_addrs = amx3_get_sram_addrs, + .save_context = am43xx_save_context, + .restore_context = am43xx_restore_context, + .check_off_mode_enable = am43xx_check_off_mode_enable, +}; + +static struct am33xx_pm_platform_data *am33xx_pm_get_pdata(void) +{ + if (soc_is_am33xx()) + return &am33xx_ops; + else if (soc_is_am437x()) + return &am43xx_ops; + else + return NULL; +} + +#ifdef CONFIG_SUSPEND +/* + * Block system suspend initially. Later on pm33xx sets up it's own + * platform_suspend_ops after probe. That depends also on loaded + * wkup_m3_ipc and booted am335x-pm-firmware.elf. + */ +static int amx3_suspend_block(suspend_state_t state) +{ + pr_warn("PM not initialized for pm33xx, wkup_m3_ipc, or am335x-pm-firmware.elf\n"); + + return -EINVAL; +} + +static int amx3_pm_valid(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_STANDBY: + return 1; + default: + return 0; + } +} + +static const struct platform_suspend_ops amx3_blocked_pm_ops = { + .begin = amx3_suspend_block, + .valid = amx3_pm_valid, +}; + +static void __init amx3_block_suspend(void) +{ + suspend_set_ops(&amx3_blocked_pm_ops); +} +#else +static inline void amx3_block_suspend(void) +{ +} +#endif /* CONFIG_SUSPEND */ + +int __init amx3_common_pm_init(void) +{ + struct am33xx_pm_platform_data *pdata; + struct platform_device_info devinfo; + + pdata = am33xx_pm_get_pdata(); + + memset(&devinfo, 0, sizeof(devinfo)); + devinfo.name = "pm33xx"; + devinfo.data = pdata; + devinfo.size_data = sizeof(*pdata); + devinfo.id = -1; + platform_device_register_full(&devinfo); + amx3_block_suspend(); + + return 0; +} + +static int __init amx3_idle_init(struct device_node *cpu_node, int cpu) +{ + struct device_node *state_node; + struct amx3_idle_state states[CPUIDLE_STATE_MAX]; + int i; + int state_count = 1; + + for (i = 0; ; i++) { + state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i); + if (!state_node) + break; + + if (!of_device_is_available(state_node)) { + of_node_put(state_node); + continue; + } + + if (i == CPUIDLE_STATE_MAX) { + pr_warn("%s: cpuidle states reached max possible\n", + __func__); + of_node_put(state_node); + break; + } + + states[state_count].wfi_flags = 0; + + if (of_property_read_bool(state_node, "ti,idle-wkup-m3")) + states[state_count].wfi_flags |= WFI_FLAG_WAKE_M3 | + WFI_FLAG_FLUSH_CACHE; + + of_node_put(state_node); + state_count++; + } + + idle_states = kzalloc_objs(*idle_states, state_count); + if (!idle_states) + return -ENOMEM; + + for (i = 1; i < state_count; i++) + idle_states[i].wfi_flags = states[i].wfi_flags; + + return 0; +} + +static int amx3_idle_enter(unsigned long index) +{ + struct amx3_idle_state *idle_state = &idle_states[index]; + + if (!idle_state) + return -EINVAL; + + if (idle_fn) + idle_fn(idle_state->wfi_flags); + + return 0; +} + +static struct cpuidle_ops amx3_cpuidle_ops __initdata = { + .init = amx3_idle_init, + .suspend = amx3_idle_enter, +}; + +CPUIDLE_METHOD_OF_DECLARE(pm33xx_idle, "ti,am3352", &amx3_cpuidle_ops); +CPUIDLE_METHOD_OF_DECLARE(pm43xx_idle, "ti,am4372", &amx3_cpuidle_ops); diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c new file mode 100644 index 000000000..9992549c7 --- /dev/null +++ b/arch/arm/mach-omap2/pm34xx.c @@ -0,0 +1,592 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 Power Management Routines + * + * Copyright (C) 2006-2008 Nokia Corporation + * Tony Lindgren <tony@atomide.com> + * Jouni Hogander + * + * Copyright (C) 2007 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Richard Woodruff <r-woodruff2@ti.com> + * + * Based on pm.c for omap1 + */ + +#include <linux/cpu_pm.h> +#include <linux/pm.h> +#include <linux/suspend.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/cpuidle.h> + +#include <trace/events/power.h> + +#include <asm/fncpy.h> +#include <asm/suspend.h> +#include <asm/system_misc.h> + +#include "clockdomain.h" +#include "powerdomain.h" +#include "soc.h" +#include "common.h" +#include "cm3xxx.h" +#include "cm-regbits-34xx.h" +#include "prm-regbits-34xx.h" +#include "prm3xxx.h" +#include "pm.h" +#include "sdrc.h" +#include "omap-secure.h" +#include "sram.h" +#include "control.h" +#include "vc.h" + +/* pm34xx errata defined in pm.h */ +u16 pm34xx_errata; + +struct power_state { + struct powerdomain *pwrdm; + u32 next_state; +#ifdef CONFIG_SUSPEND + u32 saved_state; +#endif + struct list_head node; +}; + +static LIST_HEAD(pwrst_list); + +void (*omap3_do_wfi_sram)(void); + +static struct powerdomain *mpu_pwrdm, *neon_pwrdm; +static struct powerdomain *core_pwrdm, *per_pwrdm; + +static void omap3_core_save_context(void) +{ + omap3_ctrl_save_padconf(); + + /* + * Force write last pad into memory, as this can fail in some + * cases according to errata 1.157, 1.185 + */ + omap_ctrl_writel(omap_ctrl_readl(OMAP343X_PADCONF_ETK_D14), + OMAP343X_CONTROL_MEM_WKUP + 0x2a0); + + /* Save the Interrupt controller context */ + omap_intc_save_context(); + /* Save the system control module context, padconf already save above*/ + omap3_control_save_context(); +} + +static void omap3_core_restore_context(void) +{ + /* Restore the control module context, padconf restored by h/w */ + omap3_control_restore_context(); + /* Restore the interrupt controller context */ + omap_intc_restore_context(); +} + +/* + * FIXME: This function should be called before entering off-mode after + * OMAP3 secure services have been accessed. Currently it is only called + * once during boot sequence, but this works as we are not using secure + * services. + */ +static void omap3_save_secure_ram_context(void) +{ + u32 ret; + int mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); + + if (omap_type() != OMAP2_DEVICE_TYPE_GP) { + /* + * MPU next state must be set to POWER_ON temporarily, + * otherwise the WFI executed inside the ROM code + * will hang the system. + */ + pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON); + ret = omap3_save_secure_ram(omap3_secure_ram_storage, + OMAP3_SAVE_SECURE_RAM_SZ); + pwrdm_set_next_pwrst(mpu_pwrdm, mpu_next_state); + /* Following is for error tracking, it should not happen */ + if (ret) { + pr_err("save_secure_sram() returns %08x\n", ret); + while (1) + ; + } + } +} + +static irqreturn_t _prcm_int_handle_io(int irq, void *unused) +{ + int c; + + c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK | + OMAP3430_ST_IO_CHAIN_MASK); + + return c ? IRQ_HANDLED : IRQ_NONE; +} + +static irqreturn_t _prcm_int_handle_wakeup(int irq, void *unused) +{ + int c; + + /* + * Clear all except ST_IO and ST_IO_CHAIN for wkup module, + * these are handled in a separate handler to avoid acking + * IO events before parsing in mux code + */ + c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, ~(OMAP3430_ST_IO_MASK | + OMAP3430_ST_IO_CHAIN_MASK)); + c += omap_prm_clear_mod_irqs(CORE_MOD, 1, ~0); + c += omap_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0); + if (omap_rev() > OMAP3430_REV_ES1_0) { + c += omap_prm_clear_mod_irqs(CORE_MOD, 3, ~0); + c += omap_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1, ~0); + } + + return c ? IRQ_HANDLED : IRQ_NONE; +} + +static void omap34xx_save_context(u32 *save) +{ + u32 val; + + /* Read Auxiliary Control Register */ + asm("mrc p15, 0, %0, c1, c0, 1" : "=r" (val)); + *save++ = 1; + *save++ = val; + + /* Read L2 AUX ctrl register */ + asm("mrc p15, 1, %0, c9, c0, 2" : "=r" (val)); + *save++ = 1; + *save++ = val; +} + +static int omap34xx_do_sram_idle(unsigned long save_state) +{ + omap34xx_cpu_suspend(save_state); + return 0; +} + +__cpuidle void omap_sram_idle(bool rcuidle) +{ + /* Variable to tell what needs to be saved and restored + * in omap_sram_idle*/ + /* save_state = 0 => Nothing to save and restored */ + /* save_state = 1 => Only L1 and logic lost */ + /* save_state = 2 => Only L2 lost */ + /* save_state = 3 => L1, L2 and logic lost */ + int save_state = 0; + int mpu_next_state = PWRDM_POWER_ON; + int per_next_state = PWRDM_POWER_ON; + int core_next_state = PWRDM_POWER_ON; + u32 sdrc_pwr = 0; + int error; + + mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); + switch (mpu_next_state) { + case PWRDM_POWER_ON: + case PWRDM_POWER_RET: + /* No need to save context */ + save_state = 0; + break; + case PWRDM_POWER_OFF: + save_state = 3; + break; + default: + /* Invalid state */ + pr_err("Invalid mpu state in sram_idle\n"); + return; + } + + /* NEON control */ + if (pwrdm_read_pwrst(neon_pwrdm) == PWRDM_POWER_ON) + pwrdm_set_next_pwrst(neon_pwrdm, mpu_next_state); + + /* Enable IO-PAD and IO-CHAIN wakeups */ + per_next_state = pwrdm_read_next_pwrst(per_pwrdm); + core_next_state = pwrdm_read_next_pwrst(core_pwrdm); + + pwrdm_pre_transition(NULL); + + /* PER */ + if (per_next_state == PWRDM_POWER_OFF) { + error = cpu_cluster_pm_enter(); + if (error) + return; + } + + /* CORE */ + if (core_next_state < PWRDM_POWER_ON) { + if (core_next_state == PWRDM_POWER_OFF) { + omap3_core_save_context(); + omap3_cm_save_context(); + } + } + + /* Configure PMIC signaling for I2C4 or sys_off_mode */ + omap3_vc_set_pmic_signaling(core_next_state); + + omap3_intc_prepare_idle(); + + /* + * On EMU/HS devices ROM code restores a SRDC value + * from scratchpad which has automatic self refresh on timeout + * of AUTO_CNT = 1 enabled. This takes care of erratum ID i443. + * Hence store/restore the SDRC_POWER register here. + */ + if (cpu_is_omap3430() && omap_rev() >= OMAP3430_REV_ES3_0 && + (omap_type() == OMAP2_DEVICE_TYPE_EMU || + omap_type() == OMAP2_DEVICE_TYPE_SEC) && + core_next_state == PWRDM_POWER_OFF) + sdrc_pwr = sdrc_read_reg(SDRC_POWER); + + /* + * omap3_arm_context is the location where some ARM context + * get saved. The rest is placed on the stack, and restored + * from there before resuming. + */ + if (save_state) + omap34xx_save_context(omap3_arm_context); + + if (rcuidle) + ct_cpuidle_enter(); + + if (save_state == 1 || save_state == 3) + cpu_suspend(save_state, omap34xx_do_sram_idle); + else + omap34xx_do_sram_idle(save_state); + + if (rcuidle) + ct_cpuidle_exit(); + + /* Restore normal SDRC POWER settings */ + if (cpu_is_omap3430() && omap_rev() >= OMAP3430_REV_ES3_0 && + (omap_type() == OMAP2_DEVICE_TYPE_EMU || + omap_type() == OMAP2_DEVICE_TYPE_SEC) && + core_next_state == PWRDM_POWER_OFF) + sdrc_write_reg(sdrc_pwr, SDRC_POWER); + + /* CORE */ + if (core_next_state < PWRDM_POWER_ON && + pwrdm_read_prev_pwrst(core_pwrdm) == PWRDM_POWER_OFF) { + omap3_core_restore_context(); + omap3_cm_restore_context(); + omap3_sram_restore_context(); + omap2_sms_restore_context(); + } else { + /* + * In off-mode resume path above, omap3_core_restore_context + * also handles the INTC autoidle restore done here so limit + * this to non-off mode resume paths so we don't do it twice. + */ + omap3_intc_resume_idle(); + } + + pwrdm_post_transition(NULL); + + /* PER */ + if (per_next_state == PWRDM_POWER_OFF) + cpu_cluster_pm_exit(); +} + +static void omap3_pm_idle(void) +{ + if (omap_irq_pending()) + return; + + omap3_do_wfi(); +} + +#ifdef CONFIG_SUSPEND +static int omap3_pm_suspend(void) +{ + struct power_state *pwrst; + int state, ret = 0; + + /* Read current next_pwrsts */ + list_for_each_entry(pwrst, &pwrst_list, node) + pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm); + /* Set ones wanted by suspend */ + list_for_each_entry(pwrst, &pwrst_list, node) { + if (omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state)) + goto restore; + if (pwrdm_clear_all_prev_pwrst(pwrst->pwrdm)) + goto restore; + } + + omap3_intc_suspend(); + + omap_sram_idle(false); + +restore: + /* Restore next_pwrsts */ + list_for_each_entry(pwrst, &pwrst_list, node) { + state = pwrdm_read_prev_pwrst(pwrst->pwrdm); + if (state > pwrst->next_state) { + pr_info("Powerdomain (%s) didn't enter target state %d\n", + pwrst->pwrdm->name, pwrst->next_state); + ret = -1; + } + omap_set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); + } + if (ret) + pr_err("Could not enter target state in pm_suspend\n"); + else + pr_info("Successfully put all powerdomains to target state\n"); + + return ret; +} +#else +#define omap3_pm_suspend NULL +#endif /* CONFIG_SUSPEND */ + +static void __init prcm_setup_regs(void) +{ + omap3_ctrl_init(); + + omap3_prm_init_pm(cpu_is_omap3630(), omap3_has_iva()); +} + +void omap3_pm_off_mode_enable(int enable) +{ + struct power_state *pwrst; + u32 state; + + if (enable) + state = PWRDM_POWER_OFF; + else + state = PWRDM_POWER_RET; + + list_for_each_entry(pwrst, &pwrst_list, node) { + if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583) && + pwrst->pwrdm == core_pwrdm && + state == PWRDM_POWER_OFF) { + pwrst->next_state = PWRDM_POWER_RET; + pr_warn("%s: Core OFF disabled due to errata i583\n", + __func__); + } else { + pwrst->next_state = state; + } + omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state); + } +} + +int omap3_pm_get_suspend_state(struct powerdomain *pwrdm) +{ + struct power_state *pwrst; + + list_for_each_entry(pwrst, &pwrst_list, node) { + if (pwrst->pwrdm == pwrdm) + return pwrst->next_state; + } + return -EINVAL; +} + +int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state) +{ + struct power_state *pwrst; + + list_for_each_entry(pwrst, &pwrst_list, node) { + if (pwrst->pwrdm == pwrdm) { + pwrst->next_state = state; + return 0; + } + } + return -EINVAL; +} + +static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) +{ + struct power_state *pwrst; + + if (!pwrdm->pwrsts) + return 0; + + pwrst = kmalloc_obj(struct power_state, GFP_ATOMIC); + if (!pwrst) + return -ENOMEM; + pwrst->pwrdm = pwrdm; + + if (enable_off_mode) + pwrst->next_state = PWRDM_POWER_OFF; + else + pwrst->next_state = PWRDM_POWER_RET; + + list_add(&pwrst->node, &pwrst_list); + + if (pwrdm_has_hdwr_sar(pwrdm)) + pwrdm_enable_hdwr_sar(pwrdm); + + return omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state); +} + +/* + * Push functions to SRAM + * + * The minimum set of functions is pushed to SRAM for execution: + * - omap3_do_wfi for erratum i581 WA, + */ +void omap_push_sram_idle(void) +{ + omap3_do_wfi_sram = omap_sram_push(omap3_do_wfi, omap3_do_wfi_sz); +} + +static void __init pm_errata_configure(void) +{ + if (cpu_is_omap3630()) { + pm34xx_errata |= PM_RTA_ERRATUM_i608; + /* Enable the l2 cache toggling in sleep logic */ + enable_omap3630_toggle_l2_on_restore(); + if (omap_rev() < OMAP3630_REV_ES1_2) + pm34xx_errata |= (PM_SDRC_WAKEUP_ERRATUM_i583 | + PM_PER_MEMORIES_ERRATUM_i582); + } else if (cpu_is_omap34xx()) { + pm34xx_errata |= PM_PER_MEMORIES_ERRATUM_i582; + } +} + +static void __init omap3_pm_check_pmic(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "ti,twl4030-power-idle"); + if (!np) + np = of_find_compatible_node(NULL, NULL, "ti,twl4030-power-idle-osc-off"); + + if (np) { + of_node_put(np); + enable_off_mode = 1; + } else { + enable_off_mode = 0; + } +} + +int __init omap3_pm_init(void) +{ + struct power_state *pwrst, *tmp; + struct clockdomain *neon_clkdm, *mpu_clkdm, *per_clkdm, *wkup_clkdm; + int ret; + + if (!omap3_has_io_chain_ctrl()) + pr_warn("PM: no software I/O chain control; some wakeups may be lost\n"); + + pm_errata_configure(); + + /* XXX prcm_setup_regs needs to be before enabling hw + * supervised mode for powerdomains */ + prcm_setup_regs(); + + ret = request_irq(omap_prcm_event_to_irq("wkup"), + _prcm_int_handle_wakeup, IRQF_NO_SUSPEND, "pm_wkup", NULL); + + if (ret) { + pr_err("pm: Failed to request pm_wkup irq\n"); + goto err1; + } + + /* IO interrupt is shared with mux code */ + ret = request_irq(omap_prcm_event_to_irq("io"), + _prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io", + omap3_pm_init); + + if (ret) { + pr_err("pm: Failed to request pm_io irq\n"); + goto err2; + } + + omap3_pm_check_pmic(); + + ret = pwrdm_for_each(pwrdms_setup, NULL); + if (ret) { + pr_err("Failed to setup powerdomains\n"); + goto err3; + } + + (void) clkdm_for_each(omap_pm_clkdms_setup, NULL); + + mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); + if (mpu_pwrdm == NULL) { + pr_err("Failed to get mpu_pwrdm\n"); + ret = -EINVAL; + goto err3; + } + + neon_pwrdm = pwrdm_lookup("neon_pwrdm"); + per_pwrdm = pwrdm_lookup("per_pwrdm"); + core_pwrdm = pwrdm_lookup("core_pwrdm"); + + neon_clkdm = clkdm_lookup("neon_clkdm"); + mpu_clkdm = clkdm_lookup("mpu_clkdm"); + per_clkdm = clkdm_lookup("per_clkdm"); + wkup_clkdm = clkdm_lookup("wkup_clkdm"); + + omap_common_suspend_init(omap3_pm_suspend); + + arm_pm_idle = omap3_pm_idle; + omap3_idle_init(); + + /* + * RTA is disabled during initialization as per erratum i608 + * it is safer to disable RTA by the bootloader, but we would like + * to be doubly sure here and prevent any mishaps. + */ + if (IS_PM34XX_ERRATUM(PM_RTA_ERRATUM_i608)) + omap3630_ctrl_disable_rta(); + + /* + * The UART3/4 FIFO and the sidetone memory in McBSP2/3 are + * not correctly reset when the PER powerdomain comes back + * from OFF or OSWR when the CORE powerdomain is kept active. + * See OMAP36xx Erratum i582 "PER Domain reset issue after + * Domain-OFF/OSWR Wakeup". This wakeup dependency is not a + * complete workaround. The kernel must also prevent the PER + * powerdomain from going to OSWR/OFF while the CORE + * powerdomain is not going to OSWR/OFF. And if PER last + * power state was off while CORE last power state was ON, the + * UART3/4 and McBSP2/3 SIDETONE devices need to run a + * self-test using their loopback tests; if that fails, those + * devices are unusable until the PER/CORE can complete a transition + * from ON to OSWR/OFF and then back to ON. + * + * XXX Technically this workaround is only needed if off-mode + * or OSWR is enabled. + */ + if (IS_PM34XX_ERRATUM(PM_PER_MEMORIES_ERRATUM_i582)) + clkdm_add_wkdep(per_clkdm, wkup_clkdm); + + clkdm_add_wkdep(neon_clkdm, mpu_clkdm); + if (omap_type() != OMAP2_DEVICE_TYPE_GP) { + omap3_secure_ram_storage = + kmalloc(OMAP3_SAVE_SECURE_RAM_SZ, GFP_KERNEL); + if (!omap3_secure_ram_storage) + pr_err("Memory allocation failed when allocating for secure sram context\n"); + + local_irq_disable(); + + omap3_save_secure_ram_context(); + + local_irq_enable(); + } + + omap3_save_scratchpad_contents(); + return ret; + +err3: + list_for_each_entry_safe(pwrst, tmp, &pwrst_list, node) { + list_del(&pwrst->node); + kfree(pwrst); + } + free_irq(omap_prcm_event_to_irq("io"), omap3_pm_init); +err2: + free_irq(omap_prcm_event_to_irq("wkup"), NULL); +err1: + return ret; +} diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c new file mode 100644 index 000000000..554352e9e --- /dev/null +++ b/arch/arm/mach-omap2/pm44xx.c @@ -0,0 +1,296 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4+ Power Management Routines + * + * Copyright (C) 2010-2013 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Santosh Shilimkar <santosh.shilimkar@ti.com> + */ + +#include <linux/pm.h> +#include <linux/suspend.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <asm/system_misc.h> + +#include "soc.h" +#include "common.h" +#include "clockdomain.h" +#include "powerdomain.h" +#include "pm.h" + +u16 pm44xx_errata; + +struct power_state { + struct powerdomain *pwrdm; + u32 next_state; + u32 next_logic_state; +#ifdef CONFIG_SUSPEND + u32 saved_state; + u32 saved_logic_state; +#endif + struct list_head node; +}; + +/** + * struct static_dep_map - Static dependency map + * @from: from clockdomain + * @to: to clockdomain + */ +struct static_dep_map { + const char *from; + const char *to; +}; + +static u32 cpu_suspend_state = PWRDM_POWER_OFF; + +static LIST_HEAD(pwrst_list); + +#ifdef CONFIG_SUSPEND +static int omap4_pm_suspend(void) +{ + struct power_state *pwrst; + int state, ret = 0; + u32 cpu_id = smp_processor_id(); + + /* Save current powerdomain state */ + list_for_each_entry(pwrst, &pwrst_list, node) { + pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm); + pwrst->saved_logic_state = pwrdm_read_logic_retst(pwrst->pwrdm); + } + + /* Set targeted power domain states by suspend */ + list_for_each_entry(pwrst, &pwrst_list, node) { + omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state); + pwrdm_set_logic_retst(pwrst->pwrdm, pwrst->next_logic_state); + } + + /* + * For MPUSS to hit power domain retention(CSWR or OSWR), + * CPU0 and CPU1 power domains need to be in OFF or DORMANT state, + * since CPU power domain CSWR is not supported by hardware + * Only master CPU follows suspend path. All other CPUs follow + * CPU hotplug path in system wide suspend. On OMAP4, CPU power + * domain CSWR is not supported by hardware. + * More details can be found in OMAP4430 TRM section 4.3.4.2. + */ + omap4_enter_lowpower(cpu_id, cpu_suspend_state, false); + + /* Restore next powerdomain state */ + list_for_each_entry(pwrst, &pwrst_list, node) { + state = pwrdm_read_prev_pwrst(pwrst->pwrdm); + if (state > pwrst->next_state) { + pr_info("Powerdomain (%s) didn't enter target state %d\n", + pwrst->pwrdm->name, pwrst->next_state); + ret = -1; + } + omap_set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); + pwrdm_set_logic_retst(pwrst->pwrdm, pwrst->saved_logic_state); + } + if (ret) { + pr_crit("Could not enter target state in pm_suspend\n"); + /* + * OMAP4 chip PM currently works only with certain (newer) + * versions of bootloaders. This is due to missing code in the + * kernel to properly reset and initialize some devices. + * Warn the user about the bootloader version being one of the + * possible causes. + * http://www.spinics.net/lists/arm-kernel/msg218641.html + */ + pr_debug("A possible cause could be an old bootloader - try u-boot >= v2012.07\n"); + } else { + pr_info("Successfully put all powerdomains to target state\n"); + } + + return 0; +} +#else +#define omap4_pm_suspend NULL +#endif /* CONFIG_SUSPEND */ + +static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) +{ + struct power_state *pwrst; + + if (!pwrdm->pwrsts) + return 0; + + /* + * Skip CPU0 and CPU1 power domains. CPU1 is programmed + * through hotplug path and CPU0 explicitly programmed + * further down in the code path + */ + if (!strncmp(pwrdm->name, "cpu", 3)) { + if (IS_PM44XX_ERRATUM(PM_OMAP4_CPU_OSWR_DISABLE)) + cpu_suspend_state = PWRDM_POWER_RET; + return 0; + } + + if (!strncmp(pwrdm->name, "core", 4) || + !strncmp(pwrdm->name, "l4per", 5)) + pwrdm_set_logic_retst(pwrdm, PWRDM_POWER_OFF); + + pwrst = kmalloc_obj(struct power_state, GFP_ATOMIC); + if (!pwrst) + return -ENOMEM; + + pwrst->pwrdm = pwrdm; + pwrst->next_state = pwrdm_get_valid_lp_state(pwrdm, false, + PWRDM_POWER_RET); + pwrst->next_logic_state = pwrdm_get_valid_lp_state(pwrdm, true, + PWRDM_POWER_OFF); + + list_add(&pwrst->node, &pwrst_list); + + return omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state); +} + +/** + * omap_default_idle - OMAP4 default ilde routine.' + * + * Implements OMAP4 memory, IO ordering requirements which can't be addressed + * with default cpu_do_idle() hook. Used by all CPUs with !CONFIG_CPU_IDLE and + * by secondary CPU with CONFIG_CPU_IDLE. + */ +static void omap_default_idle(void) +{ + omap_do_wfi(); +} + +/* + * The dynamic dependency between MPUSS -> MEMIF and + * MPUSS -> L4_PER/L3_* and DUCATI -> L3_* doesn't work as + * expected. The hardware recommendation is to enable static + * dependencies for these to avoid system lock ups or random crashes. + * The L4 wakeup depedency is added to workaround the OCP sync hardware + * BUG with 32K synctimer which lead to incorrect timer value read + * from the 32K counter. The BUG applies for GPTIMER1 and WDT2 which + * are part of L4 wakeup clockdomain. + */ +static const struct static_dep_map omap4_static_dep_map[] = { + {.from = "mpuss_clkdm", .to = "l3_emif_clkdm"}, + {.from = "mpuss_clkdm", .to = "l3_1_clkdm"}, + {.from = "mpuss_clkdm", .to = "l3_2_clkdm"}, + {.from = "ducati_clkdm", .to = "l3_1_clkdm"}, + {.from = "ducati_clkdm", .to = "l3_2_clkdm"}, + {.from = NULL} /* TERMINATION */ +}; + +static const struct static_dep_map omap5_dra7_static_dep_map[] = { + {.from = "mpu_clkdm", .to = "emif_clkdm"}, + {.from = NULL} /* TERMINATION */ +}; + +/** + * omap4plus_init_static_deps() - Initialize a static dependency map + * @map: Mapping of clock domains + */ +static inline int omap4plus_init_static_deps(const struct static_dep_map *map) +{ + int ret; + struct clockdomain *from, *to; + + if (!map) + return 0; + + while (map->from) { + from = clkdm_lookup(map->from); + to = clkdm_lookup(map->to); + if (!from || !to) { + pr_err("Failed lookup %s or %s for wakeup dependency\n", + map->from, map->to); + return -EINVAL; + } + ret = clkdm_add_wkdep(from, to); + if (ret) { + pr_err("Failed to add %s -> %s wakeup dependency(%d)\n", + map->from, map->to, ret); + return ret; + } + + map++; + } + + return 0; +} + +/** + * omap4_pm_init_early - Does early initialization necessary for OMAP4+ devices + * + * Initializes basic stuff for power management functionality. + */ +int __init omap4_pm_init_early(void) +{ + if (cpu_is_omap446x()) + pm44xx_errata |= PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD; + + if (soc_is_omap54xx() || soc_is_dra7xx()) + pm44xx_errata |= PM_OMAP4_CPU_OSWR_DISABLE; + + return 0; +} + +/** + * omap4_pm_init - Init routine for OMAP4+ devices + * + * Initializes all powerdomain and clockdomain target states + * and all PRCM settings. + * Return: Returns the error code returned by called functions. + */ +int __init omap4_pm_init(void) +{ + int ret = 0; + + if (omap_rev() == OMAP4430_REV_ES1_0) { + WARN(1, "Power Management not supported on OMAP4430 ES1.0\n"); + return -ENODEV; + } + + pr_info("Power Management for TI OMAP4+ devices.\n"); + + /* + * OMAP4 chip PM currently works only with certain (newer) + * versions of bootloaders. This is due to missing code in the + * kernel to properly reset and initialize some devices. + * http://www.spinics.net/lists/arm-kernel/msg218641.html + */ + if (cpu_is_omap44xx()) + pr_debug("OMAP4 PM: u-boot >= v2012.07 is required for full PM support\n"); + + ret = pwrdm_for_each(pwrdms_setup, NULL); + if (ret) { + pr_err("Failed to setup powerdomains.\n"); + goto err2; + } + + if (cpu_is_omap44xx()) + ret = omap4plus_init_static_deps(omap4_static_dep_map); + else if (soc_is_omap54xx() || soc_is_dra7xx()) + ret = omap4plus_init_static_deps(omap5_dra7_static_dep_map); + + if (ret) { + pr_err("Failed to initialise static dependencies.\n"); + goto err2; + } + + ret = omap4_mpuss_init(); + if (ret) { + pr_err("Failed to initialise OMAP4 MPUSS\n"); + goto err2; + } + + (void) clkdm_for_each(omap_pm_clkdms_setup, NULL); + + omap_common_suspend_init(omap4_pm_suspend); + + /* Overwrite the default cpu_do_idle() */ + arm_pm_idle = omap_default_idle; + + if (cpu_is_omap44xx() || soc_is_omap54xx()) + omap4_idle_init(); + +err2: + return ret; +} diff --git a/arch/arm/mach-omap2/pmic-cpcap.c b/arch/arm/mach-omap2/pmic-cpcap.c new file mode 100644 index 000000000..9f9a20274 --- /dev/null +++ b/arch/arm/mach-omap2/pmic-cpcap.c @@ -0,0 +1,275 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * pmic-cpcap.c - CPCAP-specific functions for the OPP code + * + * Adapted from Motorola Mapphone Android Linux kernel + * Copyright (C) 2011 Motorola, Inc. + */ + +#include <linux/err.h> +#include <linux/io.h> +#include <linux/kernel.h> + +#include "soc.h" +#include "pm.h" +#include "voltage.h" + +#include <linux/init.h> +#include "vc.h" + +/** + * omap_cpcap_vsel_to_uv - convert CPCAP VSEL value to microvolts DC + * @vsel: CPCAP VSEL value to convert + * + * Returns: the microvolts DC that the CPCAP PMIC should generate when + * programmed with @vsel. + */ +static unsigned long omap_cpcap_vsel_to_uv(unsigned char vsel) +{ + if (vsel > 0x44) + vsel = 0x44; + return (((vsel * 125) + 6000)) * 100; +} + +/** + * omap_cpcap_uv_to_vsel - convert microvolts DC to CPCAP VSEL value + * @uv: microvolts DC to convert + * + * Returns: the VSEL value necessary for the CPCAP PMIC to + * generate an output voltage equal to or greater than @uv microvolts DC. + */ +static unsigned char omap_cpcap_uv_to_vsel(unsigned long uv) +{ + if (uv < 600000) + uv = 600000; + else if (uv > 1450000) + uv = 1450000; + return DIV_ROUND_UP(uv - 600000, 12500); +} + +static struct omap_voltdm_pmic omap_cpcap_core = { + .slew_rate = 4000, + .step_size = 12500, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 900000, + .vddmax = 1350000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = 0x02, + .volt_reg_addr = 0x00, + .cmd_reg_addr = 0x01, + .i2c_high_speed = false, + .vsel_to_uv = omap_cpcap_vsel_to_uv, + .uv_to_vsel = omap_cpcap_uv_to_vsel, +}; + +static struct omap_voltdm_pmic omap_cpcap_iva = { + .slew_rate = 4000, + .step_size = 12500, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 900000, + .vddmax = 1375000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = 0x44, + .volt_reg_addr = 0x0, + .cmd_reg_addr = 0x01, + .i2c_high_speed = false, + .vsel_to_uv = omap_cpcap_vsel_to_uv, + .uv_to_vsel = omap_cpcap_uv_to_vsel, +}; + +/** + * omap_max8952_vsel_to_uv - convert MAX8952 VSEL value to microvolts DC + * @vsel: MAX8952 VSEL value to convert + * + * Returns: the microvolts DC that the MAX8952 Regulator should generate when + * programmed with @vsel. + */ +static unsigned long omap_max8952_vsel_to_uv(unsigned char vsel) +{ + if (vsel > 0x3F) + vsel = 0x3F; + return (((vsel * 100) + 7700)) * 100; +} + +/** + * omap_max8952_uv_to_vsel - convert microvolts DC to MAX8952 VSEL value + * @uv: microvolts DC to convert + * + * Returns: the VSEL value necessary for the MAX8952 Regulator to + * generate an output voltage equal to or greater than @uv microvolts DC. + */ +static unsigned char omap_max8952_uv_to_vsel(unsigned long uv) +{ + if (uv < 770000) + uv = 770000; + else if (uv > 1400000) + uv = 1400000; + return DIV_ROUND_UP(uv - 770000, 10000); +} + +static struct omap_voltdm_pmic omap443x_max8952_mpu = { + .slew_rate = 16000, + .step_size = 10000, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 900000, + .vddmax = 1400000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = 0x60, + .volt_reg_addr = 0x03, + .cmd_reg_addr = 0x03, + .i2c_high_speed = false, + .vsel_to_uv = omap_max8952_vsel_to_uv, + .uv_to_vsel = omap_max8952_uv_to_vsel, +}; + +/** + * omap_fan535503_vsel_to_uv - convert FAN535503 VSEL value to microvolts DC + * @vsel: FAN535503 VSEL value to convert + * + * Returns: the microvolts DC that the FAN535503 Regulator should generate when + * programmed with @vsel. + */ +static unsigned long omap_fan535503_vsel_to_uv(unsigned char vsel) +{ + /* Extract bits[5:0] */ + vsel &= 0x3F; + + return (((vsel * 125) + 7500)) * 100; +} + +/** + * omap_fan535508_vsel_to_uv - convert FAN535508 VSEL value to microvolts DC + * @vsel: FAN535508 VSEL value to convert + * + * Returns: the microvolts DC that the FAN535508 Regulator should generate when + * programmed with @vsel. + */ +static unsigned long omap_fan535508_vsel_to_uv(unsigned char vsel) +{ + /* Extract bits[5:0] */ + vsel &= 0x3F; + + if (vsel > 0x37) + vsel = 0x37; + return (((vsel * 125) + 7500)) * 100; +} + + +/** + * omap_fan535503_uv_to_vsel - convert microvolts DC to FAN535503 VSEL value + * @uv: microvolts DC to convert + * + * Returns: the VSEL value necessary for the MAX8952 Regulator to + * generate an output voltage equal to or greater than @uv microvolts DC. + */ +static unsigned char omap_fan535503_uv_to_vsel(unsigned long uv) +{ + unsigned char vsel; + if (uv < 750000) + uv = 750000; + else if (uv > 1537500) + uv = 1537500; + + vsel = DIV_ROUND_UP(uv - 750000, 12500); + return vsel | 0xC0; +} + +/** + * omap_fan535508_uv_to_vsel - convert microvolts DC to FAN535508 VSEL value + * @uv: microvolts DC to convert + * + * Returns: the VSEL value necessary for the MAX8952 Regulator to + * generate an output voltage equal to or greater than @uv microvolts DC. + */ +static unsigned char omap_fan535508_uv_to_vsel(unsigned long uv) +{ + unsigned char vsel; + if (uv < 750000) + uv = 750000; + else if (uv > 1437500) + uv = 1437500; + + vsel = DIV_ROUND_UP(uv - 750000, 12500); + return vsel | 0xC0; +} + +/* fan5335-core */ +static struct omap_voltdm_pmic omap4_fan_core = { + .slew_rate = 4000, + .step_size = 12500, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 850000, + .vddmax = 1375000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = 0x4A, + .i2c_high_speed = false, + .volt_reg_addr = 0x01, + .cmd_reg_addr = 0x01, + .vsel_to_uv = omap_fan535508_vsel_to_uv, + .uv_to_vsel = omap_fan535508_uv_to_vsel, +}; + +/* fan5335 iva */ +static struct omap_voltdm_pmic omap4_fan_iva = { + .slew_rate = 4000, + .step_size = 12500, + .vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET, + .vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN, + .vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX, + .vddmin = 850000, + .vddmax = 1375000, + .vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US, + .i2c_slave_addr = 0x48, + .volt_reg_addr = 0x01, + .cmd_reg_addr = 0x01, + .i2c_high_speed = false, + .vsel_to_uv = omap_fan535503_vsel_to_uv, + .uv_to_vsel = omap_fan535503_uv_to_vsel, +}; + +int __init omap4_cpcap_init(void) +{ + struct voltagedomain *voltdm; + + if (!of_find_compatible_node(NULL, NULL, "motorola,cpcap")) + return -ENODEV; + + voltdm = voltdm_lookup("mpu"); + omap_voltage_register_pmic(voltdm, &omap443x_max8952_mpu); + + if (of_machine_is_compatible("motorola,droid-bionic")) { + voltdm = voltdm_lookup("core"); + omap_voltage_register_pmic(voltdm, &omap_cpcap_core); + + voltdm = voltdm_lookup("iva"); + omap_voltage_register_pmic(voltdm, &omap_cpcap_iva); + } else { + voltdm = voltdm_lookup("core"); + omap_voltage_register_pmic(voltdm, &omap4_fan_core); + + voltdm = voltdm_lookup("iva"); + omap_voltage_register_pmic(voltdm, &omap4_fan_iva); + } + + return 0; +} + +static int __init cpcap_late_init(void) +{ + if (!of_find_compatible_node(NULL, NULL, "motorola,cpcap")) + return 0; + + if (soc_is_omap443x() || soc_is_omap446x() || soc_is_omap447x()) + omap4_vc_set_pmic_signaling(PWRDM_POWER_RET); + + return 0; +} +omap_late_initcall(cpcap_late_init); diff --git a/arch/arm/mach-omap2/powerdomain-common.c b/arch/arm/mach-omap2/powerdomain-common.c new file mode 100644 index 000000000..7e2c65fe7 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomain-common.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Common powerdomain framework functions + * + * Copyright (C) 2010-2011 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * + * Derived from mach-omap2/powerdomain.c written by Paul Walmsley + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/bug.h> +#include "pm.h" +#include "cm.h" +#include "cm-regbits-34xx.h" +#include "prm-regbits-34xx.h" +#include "prm-regbits-44xx.h" + +/* + * OMAP3 and OMAP4 specific register bit initialisations + * Notice that the names here are not according to each power + * domain but the bit mapping used applies to all of them + */ +/* OMAP3 and OMAP4 Memory Onstate Masks (common across all power domains) */ +#define OMAP_MEM0_ONSTATE_MASK OMAP3430_SHAREDL1CACHEFLATONSTATE_MASK +#define OMAP_MEM1_ONSTATE_MASK OMAP3430_L1FLATMEMONSTATE_MASK +#define OMAP_MEM2_ONSTATE_MASK OMAP3430_SHAREDL2CACHEFLATONSTATE_MASK +#define OMAP_MEM3_ONSTATE_MASK OMAP3430_L2FLATMEMONSTATE_MASK +#define OMAP_MEM4_ONSTATE_MASK OMAP4430_OCP_NRET_BANK_ONSTATE_MASK + +/* OMAP3 and OMAP4 Memory Retstate Masks (common across all power domains) */ +#define OMAP_MEM0_RETSTATE_MASK OMAP3430_SHAREDL1CACHEFLATRETSTATE_MASK +#define OMAP_MEM1_RETSTATE_MASK OMAP3430_L1FLATMEMRETSTATE_MASK +#define OMAP_MEM2_RETSTATE_MASK OMAP3430_SHAREDL2CACHEFLATRETSTATE_MASK +#define OMAP_MEM3_RETSTATE_MASK OMAP3430_L2FLATMEMRETSTATE_MASK +#define OMAP_MEM4_RETSTATE_MASK OMAP4430_OCP_NRET_BANK_RETSTATE_MASK + +/* OMAP3 and OMAP4 Memory Status bits */ +#define OMAP_MEM0_STATEST_MASK OMAP3430_SHAREDL1CACHEFLATSTATEST_MASK +#define OMAP_MEM1_STATEST_MASK OMAP3430_L1FLATMEMSTATEST_MASK +#define OMAP_MEM2_STATEST_MASK OMAP3430_SHAREDL2CACHEFLATSTATEST_MASK +#define OMAP_MEM3_STATEST_MASK OMAP3430_L2FLATMEMSTATEST_MASK +#define OMAP_MEM4_STATEST_MASK OMAP4430_OCP_NRET_BANK_STATEST_MASK + +/* Common Internal functions used across OMAP rev's*/ +u32 omap2_pwrdm_get_mem_bank_onstate_mask(u8 bank) +{ + switch (bank) { + case 0: + return OMAP_MEM0_ONSTATE_MASK; + case 1: + return OMAP_MEM1_ONSTATE_MASK; + case 2: + return OMAP_MEM2_ONSTATE_MASK; + case 3: + return OMAP_MEM3_ONSTATE_MASK; + case 4: + return OMAP_MEM4_ONSTATE_MASK; + default: + WARN_ON(1); /* should never happen */ + return -EEXIST; + } + return 0; +} + +u32 omap2_pwrdm_get_mem_bank_retst_mask(u8 bank) +{ + switch (bank) { + case 0: + return OMAP_MEM0_RETSTATE_MASK; + case 1: + return OMAP_MEM1_RETSTATE_MASK; + case 2: + return OMAP_MEM2_RETSTATE_MASK; + case 3: + return OMAP_MEM3_RETSTATE_MASK; + case 4: + return OMAP_MEM4_RETSTATE_MASK; + default: + WARN_ON(1); /* should never happen */ + return -EEXIST; + } + return 0; +} + +u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank) +{ + switch (bank) { + case 0: + return OMAP_MEM0_STATEST_MASK; + case 1: + return OMAP_MEM1_STATEST_MASK; + case 2: + return OMAP_MEM2_STATEST_MASK; + case 3: + return OMAP_MEM3_STATEST_MASK; + case 4: + return OMAP_MEM4_STATEST_MASK; + default: + WARN_ON(1); /* should never happen */ + return -EEXIST; + } + return 0; +} + diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c new file mode 100644 index 000000000..0225b9889 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomain.c @@ -0,0 +1,1185 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP powerdomain control + * + * Copyright (C) 2007-2008, 2011 Texas Instruments, Inc. + * Copyright (C) 2007-2011 Nokia Corporation + * + * Written by Paul Walmsley + * Added OMAP4 specific support by Abhijit Pagare <abhijitpagare@ti.com> + * State counting code by Tero Kristo <tero.kristo@nokia.com> + */ +#undef DEBUG + +#include <linux/cpu_pm.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/spinlock.h> +#include <trace/events/power.h> + +#include "cm2xxx_3xxx.h" +#include "prcm44xx.h" +#include "cm44xx.h" +#include "prm2xxx_3xxx.h" +#include "prm44xx.h" + +#include <asm/cpu.h> + +#include "powerdomain.h" +#include "clockdomain.h" +#include "voltage.h" + +#include "soc.h" +#include "pm.h" + +#define PWRDM_TRACE_STATES_FLAG (1<<31) + +static void pwrdms_save_context(void); +static void pwrdms_restore_context(void); + +enum { + PWRDM_STATE_NOW = 0, + PWRDM_STATE_PREV, +}; + +/* + * Types of sleep_switch used internally in omap_set_pwrdm_state() + * and its associated static functions + * + * XXX Better documentation is needed here + */ +#define ALREADYACTIVE_SWITCH 0 +#define FORCEWAKEUP_SWITCH 1 +#define LOWPOWERSTATE_SWITCH 2 + +/* pwrdm_list contains all registered struct powerdomains */ +static LIST_HEAD(pwrdm_list); + +static struct pwrdm_ops *arch_pwrdm; + +/* Private functions */ + +static struct powerdomain *_pwrdm_lookup(const char *name) +{ + struct powerdomain *pwrdm, *temp_pwrdm; + + pwrdm = NULL; + + list_for_each_entry(temp_pwrdm, &pwrdm_list, node) { + if (!strcmp(name, temp_pwrdm->name)) { + pwrdm = temp_pwrdm; + break; + } + } + + return pwrdm; +} + +/** + * _pwrdm_register - register a powerdomain + * @pwrdm: struct powerdomain * to register + * + * Adds a powerdomain to the internal powerdomain list. Returns + * -EINVAL if given a null pointer, -EEXIST if a powerdomain is + * already registered by the provided name, or 0 upon success. + */ +static int _pwrdm_register(struct powerdomain *pwrdm) +{ + int i; + struct voltagedomain *voltdm; + + if (!pwrdm || !pwrdm->name) + return -EINVAL; + + if (cpu_is_omap44xx() && + pwrdm->prcm_partition == OMAP4430_INVALID_PRCM_PARTITION) { + pr_err("powerdomain: %s: missing OMAP4 PRCM partition ID\n", + pwrdm->name); + return -EINVAL; + } + + if (_pwrdm_lookup(pwrdm->name)) + return -EEXIST; + + if (arch_pwrdm && arch_pwrdm->pwrdm_has_voltdm) + if (!arch_pwrdm->pwrdm_has_voltdm()) + goto skip_voltdm; + + voltdm = voltdm_lookup(pwrdm->voltdm.name); + if (!voltdm) { + pr_err("powerdomain: %s: voltagedomain %s does not exist\n", + pwrdm->name, pwrdm->voltdm.name); + return -EINVAL; + } + pwrdm->voltdm.ptr = voltdm; + INIT_LIST_HEAD(&pwrdm->voltdm_node); +skip_voltdm: + spin_lock_init(&pwrdm->_lock); + + list_add(&pwrdm->node, &pwrdm_list); + + /* Initialize the powerdomain's state counter */ + for (i = 0; i < PWRDM_MAX_PWRSTS; i++) + pwrdm->state_counter[i] = 0; + + pwrdm->ret_logic_off_counter = 0; + for (i = 0; i < pwrdm->banks; i++) + pwrdm->ret_mem_off_counter[i] = 0; + + if (arch_pwrdm && arch_pwrdm->pwrdm_wait_transition) + arch_pwrdm->pwrdm_wait_transition(pwrdm); + pwrdm->state = pwrdm_read_pwrst(pwrdm); + pwrdm->state_counter[pwrdm->state] = 1; + + pr_debug("powerdomain: registered %s\n", pwrdm->name); + + return 0; +} + +static void _update_logic_membank_counters(struct powerdomain *pwrdm) +{ + int i; + u8 prev_logic_pwrst, prev_mem_pwrst; + + prev_logic_pwrst = pwrdm_read_prev_logic_pwrst(pwrdm); + if ((pwrdm->pwrsts_logic_ret == PWRSTS_OFF_RET) && + (prev_logic_pwrst == PWRDM_POWER_OFF)) + pwrdm->ret_logic_off_counter++; + + for (i = 0; i < pwrdm->banks; i++) { + prev_mem_pwrst = pwrdm_read_prev_mem_pwrst(pwrdm, i); + + if ((pwrdm->pwrsts_mem_ret[i] == PWRSTS_OFF_RET) && + (prev_mem_pwrst == PWRDM_POWER_OFF)) + pwrdm->ret_mem_off_counter[i]++; + } +} + +static int _pwrdm_state_switch(struct powerdomain *pwrdm, int flag) +{ + + int prev, next, state, trace_state = 0; + + if (pwrdm == NULL) + return -EINVAL; + + state = pwrdm_read_pwrst(pwrdm); + + switch (flag) { + case PWRDM_STATE_NOW: + prev = pwrdm->state; + break; + case PWRDM_STATE_PREV: + prev = pwrdm_read_prev_pwrst(pwrdm); + if (prev >= 0 && pwrdm->state != prev) + pwrdm->state_counter[prev]++; + if (prev == PWRDM_POWER_RET) + _update_logic_membank_counters(pwrdm); + /* + * If the power domain did not hit the desired state, + * generate a trace event with both the desired and hit states + */ + next = pwrdm_read_next_pwrst(pwrdm); + if (next != prev) { + trace_state = (PWRDM_TRACE_STATES_FLAG | + ((next & OMAP_POWERSTATE_MASK) << 8) | + ((prev & OMAP_POWERSTATE_MASK) << 0)); + trace_power_domain_target(pwrdm->name, + trace_state, + raw_smp_processor_id()); + } + break; + default: + return -EINVAL; + } + + if (state != prev) + pwrdm->state_counter[state]++; + + pm_dbg_update_time(pwrdm, prev); + + pwrdm->state = state; + + return 0; +} + +static int _pwrdm_pre_transition_cb(struct powerdomain *pwrdm, void *unused) +{ + pwrdm_clear_all_prev_pwrst(pwrdm); + _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW); + return 0; +} + +static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused) +{ + _pwrdm_state_switch(pwrdm, PWRDM_STATE_PREV); + return 0; +} + +/** + * _pwrdm_save_clkdm_state_and_activate - prepare for power state change + * @pwrdm: struct powerdomain * to operate on + * @curr_pwrst: current power state of @pwrdm + * @pwrst: power state to switch to + * + * Determine whether the powerdomain needs to be turned on before + * attempting to switch power states. Called by + * omap_set_pwrdm_state(). NOTE that if the powerdomain contains + * multiple clockdomains, this code assumes that the first clockdomain + * supports software-supervised wakeup mode - potentially a problem. + * Returns the power state switch mode currently in use (see the + * "Types of sleep_switch" comment above). + */ +static u8 _pwrdm_save_clkdm_state_and_activate(struct powerdomain *pwrdm, + u8 curr_pwrst, u8 pwrst) +{ + u8 sleep_switch; + + if (curr_pwrst < PWRDM_POWER_ON) { + if (curr_pwrst > pwrst && + pwrdm->flags & PWRDM_HAS_LOWPOWERSTATECHANGE && + arch_pwrdm->pwrdm_set_lowpwrstchange) { + sleep_switch = LOWPOWERSTATE_SWITCH; + } else { + clkdm_deny_idle_nolock(pwrdm->pwrdm_clkdms[0]); + sleep_switch = FORCEWAKEUP_SWITCH; + } + } else { + sleep_switch = ALREADYACTIVE_SWITCH; + } + + return sleep_switch; +} + +/** + * _pwrdm_restore_clkdm_state - restore the clkdm hwsup state after pwrst change + * @pwrdm: struct powerdomain * to operate on + * @sleep_switch: return value from _pwrdm_save_clkdm_state_and_activate() + * + * Restore the clockdomain state perturbed by + * _pwrdm_save_clkdm_state_and_activate(), and call the power state + * bookkeeping code. Called by omap_set_pwrdm_state(). NOTE that if + * the powerdomain contains multiple clockdomains, this assumes that + * the first associated clockdomain supports either + * hardware-supervised idle control in the register, or + * software-supervised sleep. No return value. + */ +static void _pwrdm_restore_clkdm_state(struct powerdomain *pwrdm, + u8 sleep_switch) +{ + switch (sleep_switch) { + case FORCEWAKEUP_SWITCH: + clkdm_allow_idle_nolock(pwrdm->pwrdm_clkdms[0]); + break; + case LOWPOWERSTATE_SWITCH: + if (pwrdm->flags & PWRDM_HAS_LOWPOWERSTATECHANGE && + arch_pwrdm->pwrdm_set_lowpwrstchange) + arch_pwrdm->pwrdm_set_lowpwrstchange(pwrdm); + pwrdm_state_switch_nolock(pwrdm); + break; + } +} + +/* Public functions */ + +/** + * pwrdm_register_platform_funcs - register powerdomain implementation fns + * @po: func pointers for arch specific implementations + * + * Register the list of function pointers used to implement the + * powerdomain functions on different OMAP SoCs. Should be called + * before any other pwrdm_register*() function. Returns -EINVAL if + * @po is null, -EEXIST if platform functions have already been + * registered, or 0 upon success. + */ +int pwrdm_register_platform_funcs(struct pwrdm_ops *po) +{ + if (!po) + return -EINVAL; + + if (arch_pwrdm) + return -EEXIST; + + arch_pwrdm = po; + + return 0; +} + +/** + * pwrdm_register_pwrdms - register SoC powerdomains + * @ps: pointer to an array of struct powerdomain to register + * + * Register the powerdomains available on a particular OMAP SoC. Must + * be called after pwrdm_register_platform_funcs(). May be called + * multiple times. Returns -EACCES if called before + * pwrdm_register_platform_funcs(); -EINVAL if the argument @ps is + * null; or 0 upon success. + */ +int pwrdm_register_pwrdms(struct powerdomain **ps) +{ + struct powerdomain **p = NULL; + + if (!arch_pwrdm) + return -EEXIST; + + if (!ps) + return -EINVAL; + + for (p = ps; *p; p++) + _pwrdm_register(*p); + + return 0; +} + +static int cpu_notifier(struct notifier_block *nb, unsigned long cmd, void *v) +{ + switch (cmd) { + case CPU_CLUSTER_PM_ENTER: + if (enable_off_mode) + pwrdms_save_context(); + break; + case CPU_CLUSTER_PM_EXIT: + if (enable_off_mode) + pwrdms_restore_context(); + break; + } + + return NOTIFY_OK; +} + +/** + * pwrdm_complete_init - set up the powerdomain layer + * + * Do whatever is necessary to initialize registered powerdomains and + * powerdomain code. Currently, this programs the next power state + * for each powerdomain to ON. This prevents powerdomains from + * unexpectedly losing context or entering high wakeup latency modes + * with non-power-management-enabled kernels. Must be called after + * pwrdm_register_pwrdms(). Returns -EACCES if called before + * pwrdm_register_pwrdms(), or 0 upon success. + */ +int pwrdm_complete_init(void) +{ + struct powerdomain *temp_p; + static struct notifier_block nb; + + if (list_empty(&pwrdm_list)) + return -EACCES; + + list_for_each_entry(temp_p, &pwrdm_list, node) + pwrdm_set_next_pwrst(temp_p, PWRDM_POWER_ON); + + /* Only AM43XX can lose pwrdm context during rtc-ddr suspend */ + if (soc_is_am43xx()) { + nb.notifier_call = cpu_notifier; + cpu_pm_register_notifier(&nb); + } + + return 0; +} + +/** + * pwrdm_lock - acquire a Linux spinlock on a powerdomain + * @pwrdm: struct powerdomain * to lock + * + * Acquire the powerdomain spinlock on @pwrdm. No return value. + */ +void pwrdm_lock(struct powerdomain *pwrdm) + __acquires(&pwrdm->_lock) +{ + spin_lock_irqsave(&pwrdm->_lock, pwrdm->_lock_flags); +} + +/** + * pwrdm_unlock - release a Linux spinlock on a powerdomain + * @pwrdm: struct powerdomain * to unlock + * + * Release the powerdomain spinlock on @pwrdm. No return value. + */ +void pwrdm_unlock(struct powerdomain *pwrdm) + __releases(&pwrdm->_lock) +{ + spin_unlock_irqrestore(&pwrdm->_lock, pwrdm->_lock_flags); +} + +/** + * pwrdm_lookup - look up a powerdomain by name, return a pointer + * @name: name of powerdomain + * + * Find a registered powerdomain by its name @name. Returns a pointer + * to the struct powerdomain if found, or NULL otherwise. + */ +struct powerdomain *pwrdm_lookup(const char *name) +{ + struct powerdomain *pwrdm; + + if (!name) + return NULL; + + pwrdm = _pwrdm_lookup(name); + + return pwrdm; +} + +/** + * pwrdm_for_each - call function on each registered clockdomain + * @fn: callback function * + * + * Call the supplied function @fn for each registered powerdomain. + * The callback function @fn can return anything but 0 to bail out + * early from the iterator. Returns the last return value of the + * callback function, which should be 0 for success or anything else + * to indicate failure; or -EINVAL if the function pointer is null. + */ +int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm, void *user), + void *user) +{ + struct powerdomain *temp_pwrdm; + int ret = 0; + + if (!fn) + return -EINVAL; + + list_for_each_entry(temp_pwrdm, &pwrdm_list, node) { + ret = (*fn)(temp_pwrdm, user); + if (ret) + break; + } + + return ret; +} + +/** + * pwrdm_add_clkdm - add a clockdomain to a powerdomain + * @pwrdm: struct powerdomain * to add the clockdomain to + * @clkdm: struct clockdomain * to associate with a powerdomain + * + * Associate the clockdomain @clkdm with a powerdomain @pwrdm. This + * enables the use of pwrdm_for_each_clkdm(). Returns -EINVAL if + * presented with invalid pointers; -ENOMEM if memory could not be allocated; + * or 0 upon success. + */ +int pwrdm_add_clkdm(struct powerdomain *pwrdm, struct clockdomain *clkdm) +{ + int i; + int ret = -EINVAL; + + if (!pwrdm || !clkdm) + return -EINVAL; + + pr_debug("powerdomain: %s: associating clockdomain %s\n", + pwrdm->name, clkdm->name); + + for (i = 0; i < PWRDM_MAX_CLKDMS; i++) { + if (!pwrdm->pwrdm_clkdms[i]) + break; +#ifdef DEBUG + if (pwrdm->pwrdm_clkdms[i] == clkdm) { + ret = -EINVAL; + goto pac_exit; + } +#endif + } + + if (i == PWRDM_MAX_CLKDMS) { + pr_debug("powerdomain: %s: increase PWRDM_MAX_CLKDMS for clkdm %s\n", + pwrdm->name, clkdm->name); + WARN_ON(1); + ret = -ENOMEM; + goto pac_exit; + } + + pwrdm->pwrdm_clkdms[i] = clkdm; + + ret = 0; + +pac_exit: + return ret; +} + +/** + * pwrdm_get_mem_bank_count - get number of memory banks in this powerdomain + * @pwrdm: struct powerdomain * + * + * Return the number of controllable memory banks in powerdomain @pwrdm, + * starting with 1. Returns -EINVAL if the powerdomain pointer is null. + */ +int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm) +{ + if (!pwrdm) + return -EINVAL; + + return pwrdm->banks; +} + +/** + * pwrdm_set_next_pwrst - set next powerdomain power state + * @pwrdm: struct powerdomain * to set + * @pwrst: one of the PWRDM_POWER_* macros + * + * Set the powerdomain @pwrdm's next power state to @pwrst. The powerdomain + * may not enter this state immediately if the preconditions for this state + * have not been satisfied. Returns -EINVAL if the powerdomain pointer is + * null or if the power state is invalid for the powerdomain, or returns 0 + * upon success. + */ +int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (!(pwrdm->pwrsts & (1 << pwrst))) + return -EINVAL; + + pr_debug("powerdomain: %s: setting next powerstate to %0x\n", + pwrdm->name, pwrst); + + if (arch_pwrdm && arch_pwrdm->pwrdm_set_next_pwrst) { + /* Trace the pwrdm desired target state */ + trace_power_domain_target(pwrdm->name, pwrst, + raw_smp_processor_id()); + /* Program the pwrdm desired target state */ + ret = arch_pwrdm->pwrdm_set_next_pwrst(pwrdm, pwrst); + } + + return ret; +} + +/** + * pwrdm_read_next_pwrst - get next powerdomain power state + * @pwrdm: struct powerdomain * to get power state + * + * Return the powerdomain @pwrdm's next power state. Returns -EINVAL + * if the powerdomain pointer is null or returns the next power state + * upon success. + */ +int pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_next_pwrst) + ret = arch_pwrdm->pwrdm_read_next_pwrst(pwrdm); + + return ret; +} + +/** + * pwrdm_read_pwrst - get current powerdomain power state + * @pwrdm: struct powerdomain * to get power state + * + * Return the powerdomain @pwrdm's current power state. Returns -EINVAL + * if the powerdomain pointer is null or returns the current power state + * upon success. Note that if the power domain only supports the ON state + * then just return ON as the current state. + */ +int pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (pwrdm->pwrsts == PWRSTS_ON) + return PWRDM_POWER_ON; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_pwrst) + ret = arch_pwrdm->pwrdm_read_pwrst(pwrdm); + + return ret; +} + +/** + * pwrdm_read_prev_pwrst - get previous powerdomain power state + * @pwrdm: struct powerdomain * to get previous power state + * + * Return the powerdomain @pwrdm's previous power state. Returns -EINVAL + * if the powerdomain pointer is null or returns the previous power state + * upon success. + */ +int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_prev_pwrst) + ret = arch_pwrdm->pwrdm_read_prev_pwrst(pwrdm); + + return ret; +} + +/** + * pwrdm_set_logic_retst - set powerdomain logic power state upon retention + * @pwrdm: struct powerdomain * to set + * @pwrst: one of the PWRDM_POWER_* macros + * + * Set the next power state @pwrst that the logic portion of the + * powerdomain @pwrdm will enter when the powerdomain enters retention. + * This will be either RETENTION or OFF, if supported. Returns + * -EINVAL if the powerdomain pointer is null or the target power + * state is not supported, or returns 0 upon success. + */ +int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (!(pwrdm->pwrsts_logic_ret & (1 << pwrst))) + return -EINVAL; + + pr_debug("powerdomain: %s: setting next logic powerstate to %0x\n", + pwrdm->name, pwrst); + + if (arch_pwrdm && arch_pwrdm->pwrdm_set_logic_retst) + ret = arch_pwrdm->pwrdm_set_logic_retst(pwrdm, pwrst); + + return ret; +} + +/** + * pwrdm_set_mem_onst - set memory power state while powerdomain ON + * @pwrdm: struct powerdomain * to set + * @bank: memory bank number to set (0-3) + * @pwrst: one of the PWRDM_POWER_* macros + * + * Set the next power state @pwrst that memory bank @bank of the + * powerdomain @pwrdm will enter when the powerdomain enters the ON + * state. @bank will be a number from 0 to 3, and represents different + * types of memory, depending on the powerdomain. Returns -EINVAL if + * the powerdomain pointer is null or the target power state is not + * supported for this memory bank, -EEXIST if the target memory + * bank does not exist or is not controllable, or returns 0 upon + * success. + */ +int pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, u8 pwrst) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (pwrdm->banks < (bank + 1)) + return -EEXIST; + + if (!(pwrdm->pwrsts_mem_on[bank] & (1 << pwrst))) + return -EINVAL; + + pr_debug("powerdomain: %s: setting next memory powerstate for bank %0x while pwrdm-ON to %0x\n", + pwrdm->name, bank, pwrst); + + if (arch_pwrdm && arch_pwrdm->pwrdm_set_mem_onst) + ret = arch_pwrdm->pwrdm_set_mem_onst(pwrdm, bank, pwrst); + + return ret; +} + +/** + * pwrdm_set_mem_retst - set memory power state while powerdomain in RET + * @pwrdm: struct powerdomain * to set + * @bank: memory bank number to set (0-3) + * @pwrst: one of the PWRDM_POWER_* macros + * + * Set the next power state @pwrst that memory bank @bank of the + * powerdomain @pwrdm will enter when the powerdomain enters the + * RETENTION state. Bank will be a number from 0 to 3, and represents + * different types of memory, depending on the powerdomain. @pwrst + * will be either RETENTION or OFF, if supported. Returns -EINVAL if + * the powerdomain pointer is null or the target power state is not + * supported for this memory bank, -EEXIST if the target memory + * bank does not exist or is not controllable, or returns 0 upon + * success. + */ +int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, u8 pwrst) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (pwrdm->banks < (bank + 1)) + return -EEXIST; + + if (!(pwrdm->pwrsts_mem_ret[bank] & (1 << pwrst))) + return -EINVAL; + + pr_debug("powerdomain: %s: setting next memory powerstate for bank %0x while pwrdm-RET to %0x\n", + pwrdm->name, bank, pwrst); + + if (arch_pwrdm && arch_pwrdm->pwrdm_set_mem_retst) + ret = arch_pwrdm->pwrdm_set_mem_retst(pwrdm, bank, pwrst); + + return ret; +} + +/** + * pwrdm_read_logic_pwrst - get current powerdomain logic retention power state + * @pwrdm: struct powerdomain * to get current logic retention power state + * + * Return the power state that the logic portion of powerdomain @pwrdm + * will enter when the powerdomain enters retention. Returns -EINVAL + * if the powerdomain pointer is null or returns the logic retention + * power state upon success. + */ +int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_logic_pwrst) + ret = arch_pwrdm->pwrdm_read_logic_pwrst(pwrdm); + + return ret; +} + +/** + * pwrdm_read_prev_logic_pwrst - get previous powerdomain logic power state + * @pwrdm: struct powerdomain * to get previous logic power state + * + * Return the powerdomain @pwrdm's previous logic power state. Returns + * -EINVAL if the powerdomain pointer is null or returns the previous + * logic power state upon success. + */ +int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_prev_logic_pwrst) + ret = arch_pwrdm->pwrdm_read_prev_logic_pwrst(pwrdm); + + return ret; +} + +/** + * pwrdm_read_logic_retst - get next powerdomain logic power state + * @pwrdm: struct powerdomain * to get next logic power state + * + * Return the powerdomain pwrdm's logic power state. Returns -EINVAL + * if the powerdomain pointer is null or returns the next logic + * power state upon success. + */ +int pwrdm_read_logic_retst(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return -EINVAL; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_logic_retst) + ret = arch_pwrdm->pwrdm_read_logic_retst(pwrdm); + + return ret; +} + +/** + * pwrdm_read_mem_pwrst - get current memory bank power state + * @pwrdm: struct powerdomain * to get current memory bank power state + * @bank: memory bank number (0-3) + * + * Return the powerdomain @pwrdm's current memory power state for bank + * @bank. Returns -EINVAL if the powerdomain pointer is null, -EEXIST if + * the target memory bank does not exist or is not controllable, or + * returns the current memory power state upon success. + */ +int pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + int ret = -EINVAL; + + if (!pwrdm) + return ret; + + if (pwrdm->banks < (bank + 1)) + return ret; + + if (pwrdm->flags & PWRDM_HAS_MPU_QUIRK) + bank = 1; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_mem_pwrst) + ret = arch_pwrdm->pwrdm_read_mem_pwrst(pwrdm, bank); + + return ret; +} + +/** + * pwrdm_read_prev_mem_pwrst - get previous memory bank power state + * @pwrdm: struct powerdomain * to get previous memory bank power state + * @bank: memory bank number (0-3) + * + * Return the powerdomain @pwrdm's previous memory power state for + * bank @bank. Returns -EINVAL if the powerdomain pointer is null, + * -EEXIST if the target memory bank does not exist or is not + * controllable, or returns the previous memory power state upon + * success. + */ +int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + int ret = -EINVAL; + + if (!pwrdm) + return ret; + + if (pwrdm->banks < (bank + 1)) + return ret; + + if (pwrdm->flags & PWRDM_HAS_MPU_QUIRK) + bank = 1; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_prev_mem_pwrst) + ret = arch_pwrdm->pwrdm_read_prev_mem_pwrst(pwrdm, bank); + + return ret; +} + +/** + * pwrdm_read_mem_retst - get next memory bank power state + * @pwrdm: struct powerdomain * to get mext memory bank power state + * @bank: memory bank number (0-3) + * + * Return the powerdomain pwrdm's next memory power state for bank + * x. Returns -EINVAL if the powerdomain pointer is null, -EEXIST if + * the target memory bank does not exist or is not controllable, or + * returns the next memory power state upon success. + */ +int pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) +{ + int ret = -EINVAL; + + if (!pwrdm) + return ret; + + if (pwrdm->banks < (bank + 1)) + return ret; + + if (arch_pwrdm && arch_pwrdm->pwrdm_read_mem_retst) + ret = arch_pwrdm->pwrdm_read_mem_retst(pwrdm, bank); + + return ret; +} + +/** + * pwrdm_clear_all_prev_pwrst - clear previous powerstate register for a pwrdm + * @pwrdm: struct powerdomain * to clear + * + * Clear the powerdomain's previous power state register @pwrdm. + * Clears the entire register, including logic and memory bank + * previous power states. Returns -EINVAL if the powerdomain pointer + * is null, or returns 0 upon success. + */ +int pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return ret; + + /* + * XXX should get the powerdomain's current state here; + * warn & fail if it is not ON. + */ + + pr_debug("powerdomain: %s: clearing previous power state reg\n", + pwrdm->name); + + if (arch_pwrdm && arch_pwrdm->pwrdm_clear_all_prev_pwrst) + ret = arch_pwrdm->pwrdm_clear_all_prev_pwrst(pwrdm); + + return ret; +} + +/** + * pwrdm_enable_hdwr_sar - enable automatic hardware SAR for a pwrdm + * @pwrdm: struct powerdomain * + * + * Enable automatic context save-and-restore upon power state change + * for some devices in the powerdomain @pwrdm. Warning: this only + * affects a subset of devices in a powerdomain; check the TRM + * closely. Returns -EINVAL if the powerdomain pointer is null or if + * the powerdomain does not support automatic save-and-restore, or + * returns 0 upon success. + */ +int pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return ret; + + if (!(pwrdm->flags & PWRDM_HAS_HDWR_SAR)) + return ret; + + pr_debug("powerdomain: %s: setting SAVEANDRESTORE bit\n", pwrdm->name); + + if (arch_pwrdm && arch_pwrdm->pwrdm_enable_hdwr_sar) + ret = arch_pwrdm->pwrdm_enable_hdwr_sar(pwrdm); + + return ret; +} + +/** + * pwrdm_disable_hdwr_sar - disable automatic hardware SAR for a pwrdm + * @pwrdm: struct powerdomain * + * + * Disable automatic context save-and-restore upon power state change + * for some devices in the powerdomain @pwrdm. Warning: this only + * affects a subset of devices in a powerdomain; check the TRM + * closely. Returns -EINVAL if the powerdomain pointer is null or if + * the powerdomain does not support automatic save-and-restore, or + * returns 0 upon success. + */ +int pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm) +{ + int ret = -EINVAL; + + if (!pwrdm) + return ret; + + if (!(pwrdm->flags & PWRDM_HAS_HDWR_SAR)) + return ret; + + pr_debug("powerdomain: %s: clearing SAVEANDRESTORE bit\n", pwrdm->name); + + if (arch_pwrdm && arch_pwrdm->pwrdm_disable_hdwr_sar) + ret = arch_pwrdm->pwrdm_disable_hdwr_sar(pwrdm); + + return ret; +} + +/** + * pwrdm_has_hdwr_sar - test whether powerdomain supports hardware SAR + * @pwrdm: struct powerdomain * + * + * Returns 1 if powerdomain @pwrdm supports hardware save-and-restore + * for some devices, or 0 if it does not. + */ +bool pwrdm_has_hdwr_sar(struct powerdomain *pwrdm) +{ + return (pwrdm && pwrdm->flags & PWRDM_HAS_HDWR_SAR) ? 1 : 0; +} + +int pwrdm_state_switch_nolock(struct powerdomain *pwrdm) +{ + int ret; + + if (!pwrdm || !arch_pwrdm) + return -EINVAL; + + ret = arch_pwrdm->pwrdm_wait_transition(pwrdm); + if (!ret) + ret = _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW); + + return ret; +} + +int __deprecated pwrdm_state_switch(struct powerdomain *pwrdm) +{ + int ret; + + pwrdm_lock(pwrdm); + ret = pwrdm_state_switch_nolock(pwrdm); + pwrdm_unlock(pwrdm); + + return ret; +} + +int pwrdm_pre_transition(struct powerdomain *pwrdm) +{ + if (pwrdm) + _pwrdm_pre_transition_cb(pwrdm, NULL); + else + pwrdm_for_each(_pwrdm_pre_transition_cb, NULL); + + return 0; +} + +int pwrdm_post_transition(struct powerdomain *pwrdm) +{ + if (pwrdm) + _pwrdm_post_transition_cb(pwrdm, NULL); + else + pwrdm_for_each(_pwrdm_post_transition_cb, NULL); + + return 0; +} + +/** + * pwrdm_get_valid_lp_state() - Find best match deep power state + * @pwrdm: power domain for which we want to find best match + * @is_logic_state: Are we looking for logic state match here? Should + * be one of PWRDM_xxx macro values + * @req_state: requested power state + * + * Returns: closest match for requested power state. default fallback + * is RET for logic state and ON for power state. + * + * This does a search from the power domain data looking for the + * closest valid power domain state that the hardware can achieve. + * PRCM definitions for PWRSTCTRL allows us to program whatever + * configuration we'd like, and PRCM will actually attempt such + * a transition, however if the powerdomain does not actually support it, + * we endup with a hung system. The valid power domain states are already + * available in our powerdomain data files. So this function tries to do + * the following: + * a) find if we have an exact match to the request - no issues. + * b) else find if a deeper power state is possible. + * c) failing which, it tries to find closest higher power state for the + * request. + */ +u8 pwrdm_get_valid_lp_state(struct powerdomain *pwrdm, + bool is_logic_state, u8 req_state) +{ + u8 pwrdm_states = is_logic_state ? pwrdm->pwrsts_logic_ret : + pwrdm->pwrsts; + /* For logic, ret is highest and others, ON is highest */ + u8 default_pwrst = is_logic_state ? PWRDM_POWER_RET : PWRDM_POWER_ON; + u8 new_pwrst; + bool found; + + /* If it is already supported, nothing to search */ + if (pwrdm_states & BIT(req_state)) + return req_state; + + if (!req_state) + goto up_search; + + /* + * So, we dont have a exact match + * Can we get a deeper power state match? + */ + new_pwrst = req_state - 1; + found = true; + while (!(pwrdm_states & BIT(new_pwrst))) { + /* No match even at OFF? Not available */ + if (new_pwrst == PWRDM_POWER_OFF) { + found = false; + break; + } + new_pwrst--; + } + + if (found) + goto done; + +up_search: + /* OK, no deeper ones, can we get a higher match? */ + new_pwrst = req_state + 1; + while (!(pwrdm_states & BIT(new_pwrst))) { + if (new_pwrst > PWRDM_POWER_ON) { + WARN(1, "powerdomain: %s: Fix max powerstate to ON\n", + pwrdm->name); + return PWRDM_POWER_ON; + } + + if (new_pwrst == default_pwrst) + break; + new_pwrst++; + } +done: + return new_pwrst; +} + +/** + * omap_set_pwrdm_state - change a powerdomain's current power state + * @pwrdm: struct powerdomain * to change the power state of + * @pwrst: power state to change to + * + * Change the current hardware power state of the powerdomain + * represented by @pwrdm to the power state represented by @pwrst. + * Returns -EINVAL if @pwrdm is null or invalid or if the + * powerdomain's current power state could not be read, or returns 0 + * upon success or if @pwrdm does not support @pwrst or any + * lower-power state. XXX Should not return 0 if the @pwrdm does not + * support @pwrst or any lower-power state: this should be an error. + */ +int omap_set_pwrdm_state(struct powerdomain *pwrdm, u8 pwrst) +{ + u8 next_pwrst, sleep_switch; + int curr_pwrst; + int ret = 0; + + if (IS_ERR_OR_NULL(pwrdm)) + return -EINVAL; + + while (!(pwrdm->pwrsts & (1 << pwrst))) { + if (pwrst == PWRDM_POWER_OFF) + return ret; + pwrst--; + } + + pwrdm_lock(pwrdm); + + curr_pwrst = pwrdm_read_pwrst(pwrdm); + if (curr_pwrst < 0) { + ret = -EINVAL; + goto osps_out; + } + + next_pwrst = pwrdm_read_next_pwrst(pwrdm); + if (curr_pwrst == pwrst && next_pwrst == pwrst) + goto osps_out; + + sleep_switch = _pwrdm_save_clkdm_state_and_activate(pwrdm, curr_pwrst, + pwrst); + + ret = pwrdm_set_next_pwrst(pwrdm, pwrst); + if (ret) + pr_err("%s: unable to set power state of powerdomain: %s\n", + __func__, pwrdm->name); + + _pwrdm_restore_clkdm_state(pwrdm, sleep_switch); + +osps_out: + pwrdm_unlock(pwrdm); + + return ret; +} + +/** + * pwrdm_save_context - save powerdomain registers + * + * Register state is going to be lost due to a suspend or hibernate + * event. Save the powerdomain registers. + */ +static int pwrdm_save_context(struct powerdomain *pwrdm, void *unused) +{ + if (arch_pwrdm && arch_pwrdm->pwrdm_save_context) + arch_pwrdm->pwrdm_save_context(pwrdm); + return 0; +} + +/** + * pwrdm_restore_context - restore powerdomain registers + * + * Restore powerdomain control registers after a suspend or resume + * event. + */ +static int pwrdm_restore_context(struct powerdomain *pwrdm, void *unused) +{ + if (arch_pwrdm && arch_pwrdm->pwrdm_restore_context) + arch_pwrdm->pwrdm_restore_context(pwrdm); + return 0; +} + +static void pwrdms_save_context(void) +{ + pwrdm_for_each(pwrdm_save_context, NULL); +} + +static void pwrdms_restore_context(void) +{ + pwrdm_for_each(pwrdm_restore_context, NULL); +} diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h new file mode 100644 index 000000000..fbc899994 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomain.h @@ -0,0 +1,272 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2/3/4 powerdomain control + * + * Copyright (C) 2007-2008, 2010 Texas Instruments, Inc. + * Copyright (C) 2007-2011 Nokia Corporation + * + * Paul Walmsley + * + * XXX This should be moved to the mach-omap2/ directory at the earliest + * opportunity. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_POWERDOMAIN_H +#define __ARCH_ARM_MACH_OMAP2_POWERDOMAIN_H + +#include <linux/types.h> +#include <linux/list.h> +#include <linux/spinlock.h> + +/* Powerdomain basic power states */ +#define PWRDM_POWER_OFF 0x0 +#define PWRDM_POWER_RET 0x1 +#define PWRDM_POWER_INACTIVE 0x2 +#define PWRDM_POWER_ON 0x3 + +#define PWRDM_MAX_PWRSTS 4 + +/* Powerdomain allowable state bitfields */ +#define PWRSTS_ON (1 << PWRDM_POWER_ON) +#define PWRSTS_INACTIVE (1 << PWRDM_POWER_INACTIVE) +#define PWRSTS_RET (1 << PWRDM_POWER_RET) +#define PWRSTS_OFF (1 << PWRDM_POWER_OFF) + +#define PWRSTS_OFF_ON (PWRSTS_OFF | PWRSTS_ON) +#define PWRSTS_OFF_RET (PWRSTS_OFF | PWRSTS_RET) +#define PWRSTS_RET_ON (PWRSTS_RET | PWRSTS_ON) +#define PWRSTS_OFF_RET_ON (PWRSTS_OFF_RET | PWRSTS_ON) +#define PWRSTS_INA_ON (PWRSTS_INACTIVE | PWRSTS_ON) + + +/* + * Powerdomain flags (struct powerdomain.flags) + * + * PWRDM_HAS_HDWR_SAR - powerdomain has hardware save-and-restore support + * + * PWRDM_HAS_MPU_QUIRK - MPU pwr domain has MEM bank 0 bits in MEM + * bank 1 position. This is true for OMAP3430 + * + * PWRDM_HAS_LOWPOWERSTATECHANGE - can transition from a sleep state + * to a lower sleep state without waking up the powerdomain + */ +#define PWRDM_HAS_HDWR_SAR BIT(0) +#define PWRDM_HAS_MPU_QUIRK BIT(1) +#define PWRDM_HAS_LOWPOWERSTATECHANGE BIT(2) + +/* + * Number of memory banks that are power-controllable. On OMAP4430, the + * maximum is 5. + */ +#define PWRDM_MAX_MEM_BANKS 5 + +/* + * Maximum number of clockdomains that can be associated with a powerdomain. + * PER powerdomain on AM33XX is the worst case + */ +#define PWRDM_MAX_CLKDMS 11 + +/* XXX A completely arbitrary number. What is reasonable here? */ +#define PWRDM_TRANSITION_BAILOUT 100000 + +struct clockdomain; +struct powerdomain; +struct voltagedomain; + +/** + * struct powerdomain - OMAP powerdomain + * @name: Powerdomain name + * @voltdm: voltagedomain containing this powerdomain + * @prcm_offs: the address offset from CM_BASE/PRM_BASE + * @prcm_partition: (OMAP4 only) the PRCM partition ID containing @prcm_offs + * @pwrsts: Possible powerdomain power states + * @pwrsts_logic_ret: Possible logic power states when pwrdm in RETENTION + * @flags: Powerdomain flags + * @banks: Number of software-controllable memory banks in this powerdomain + * @pwrsts_mem_ret: Possible memory bank pwrstates when pwrdm in RETENTION + * @pwrsts_mem_on: Possible memory bank pwrstates when pwrdm in ON + * @pwrdm_clkdms: Clockdomains in this powerdomain + * @node: list_head linking all powerdomains + * @voltdm_node: list_head linking all powerdomains in a voltagedomain + * @pwrstctrl_offs: (AM33XX only) XXX_PWRSTCTRL reg offset from prcm_offs + * @pwrstst_offs: (AM33XX only) XXX_PWRSTST reg offset from prcm_offs + * @logicretstate_mask: (AM33XX only) mask for logic retention bitfield + * in @pwrstctrl_offs + * @mem_on_mask: (AM33XX only) mask for mem on bitfield in @pwrstctrl_offs + * @mem_ret_mask: (AM33XX only) mask for mem ret bitfield in @pwrstctrl_offs + * @mem_pwrst_mask: (AM33XX only) mask for mem state bitfield in @pwrstst_offs + * @mem_retst_mask: (AM33XX only) mask for mem retention state bitfield + * in @pwrstctrl_offs + * @state: + * @state_counter: + * @timer: + * @state_timer: + * @_lock: spinlock used to serialize powerdomain and some clockdomain ops + * @_lock_flags: stored flags when @_lock is taken + * + * @prcm_partition possible values are defined in mach-omap2/prcm44xx.h. + */ +struct powerdomain { + const char *name; + union { + const char *name; + struct voltagedomain *ptr; + } voltdm; + const s16 prcm_offs; + const u8 pwrsts; + const u8 pwrsts_logic_ret; + const u8 flags; + const u8 banks; + const u8 pwrsts_mem_ret[PWRDM_MAX_MEM_BANKS]; + const u8 pwrsts_mem_on[PWRDM_MAX_MEM_BANKS]; + const u8 prcm_partition; + struct clockdomain *pwrdm_clkdms[PWRDM_MAX_CLKDMS]; + struct list_head node; + struct list_head voltdm_node; + int state; + unsigned state_counter[PWRDM_MAX_PWRSTS]; + unsigned ret_logic_off_counter; + unsigned ret_mem_off_counter[PWRDM_MAX_MEM_BANKS]; + spinlock_t _lock; + unsigned long _lock_flags; + const u8 pwrstctrl_offs; + const u8 pwrstst_offs; + const u32 logicretstate_mask; + const u32 mem_on_mask[PWRDM_MAX_MEM_BANKS]; + const u32 mem_ret_mask[PWRDM_MAX_MEM_BANKS]; + const u32 mem_pwrst_mask[PWRDM_MAX_MEM_BANKS]; + const u32 mem_retst_mask[PWRDM_MAX_MEM_BANKS]; + +#ifdef CONFIG_PM_DEBUG + s64 timer; + s64 state_timer[PWRDM_MAX_PWRSTS]; +#endif + u32 context; +}; + +/** + * struct pwrdm_ops - Arch specific function implementations + * @pwrdm_set_next_pwrst: Set the target power state for a pd + * @pwrdm_read_next_pwrst: Read the target power state set for a pd + * @pwrdm_read_pwrst: Read the current power state of a pd + * @pwrdm_read_prev_pwrst: Read the prev power state entered by the pd + * @pwrdm_set_logic_retst: Set the logic state in RET for a pd + * @pwrdm_set_mem_onst: Set the Memory state in ON for a pd + * @pwrdm_set_mem_retst: Set the Memory state in RET for a pd + * @pwrdm_read_logic_pwrst: Read the current logic state of a pd + * @pwrdm_read_prev_logic_pwrst: Read the previous logic state entered by a pd + * @pwrdm_read_logic_retst: Read the logic state in RET for a pd + * @pwrdm_read_mem_pwrst: Read the current memory state of a pd + * @pwrdm_read_prev_mem_pwrst: Read the previous memory state entered by a pd + * @pwrdm_read_mem_retst: Read the memory state in RET for a pd + * @pwrdm_clear_all_prev_pwrst: Clear all previous power states logged for a pd + * @pwrdm_enable_hdwr_sar: Enable Hardware Save-Restore feature for the pd + * @pwrdm_disable_hdwr_sar: Disable Hardware Save-Restore feature for a pd + * @pwrdm_set_lowpwrstchange: Enable pd transitions from a shallow to deep sleep + * @pwrdm_wait_transition: Wait for a pd state transition to complete + * @pwrdm_has_voltdm: Check if a voltdm association is needed + * + * Regarding @pwrdm_set_lowpwrstchange: On the OMAP2 and 3-family + * chips, a powerdomain's power state is not allowed to directly + * transition from one low-power state (e.g., CSWR) to another + * low-power state (e.g., OFF) without first waking up the + * powerdomain. This wastes energy. So OMAP4 chips support the + * ability to transition a powerdomain power state directly from one + * low-power state to another. The function pointed to by + * @pwrdm_set_lowpwrstchange is intended to configure the OMAP4 + * hardware powerdomain state machine to enable this feature. + */ +struct pwrdm_ops { + int (*pwrdm_set_next_pwrst)(struct powerdomain *pwrdm, u8 pwrst); + int (*pwrdm_read_next_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_prev_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_set_logic_retst)(struct powerdomain *pwrdm, u8 pwrst); + int (*pwrdm_set_mem_onst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst); + int (*pwrdm_set_mem_retst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst); + int (*pwrdm_read_logic_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_prev_logic_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_logic_retst)(struct powerdomain *pwrdm); + int (*pwrdm_read_mem_pwrst)(struct powerdomain *pwrdm, u8 bank); + int (*pwrdm_read_prev_mem_pwrst)(struct powerdomain *pwrdm, u8 bank); + int (*pwrdm_read_mem_retst)(struct powerdomain *pwrdm, u8 bank); + int (*pwrdm_clear_all_prev_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_enable_hdwr_sar)(struct powerdomain *pwrdm); + int (*pwrdm_disable_hdwr_sar)(struct powerdomain *pwrdm); + int (*pwrdm_set_lowpwrstchange)(struct powerdomain *pwrdm); + int (*pwrdm_wait_transition)(struct powerdomain *pwrdm); + int (*pwrdm_has_voltdm)(void); + void (*pwrdm_save_context)(struct powerdomain *pwrdm); + void (*pwrdm_restore_context)(struct powerdomain *pwrdm); +}; + +int pwrdm_register_platform_funcs(struct pwrdm_ops *custom_funcs); +int pwrdm_register_pwrdms(struct powerdomain **pwrdm_list); +int pwrdm_complete_init(void); + +struct powerdomain *pwrdm_lookup(const char *name); + +int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm, void *user), + void *user); + +int pwrdm_add_clkdm(struct powerdomain *pwrdm, struct clockdomain *clkdm); + +int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm); + +u8 pwrdm_get_valid_lp_state(struct powerdomain *pwrdm, + bool is_logic_state, u8 req_state); + +int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst); +int pwrdm_read_next_pwrst(struct powerdomain *pwrdm); +int pwrdm_read_pwrst(struct powerdomain *pwrdm); +int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm); +int pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm); + +int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst); +int pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, u8 pwrst); +int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, u8 pwrst); + +int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm); +int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm); +int pwrdm_read_logic_retst(struct powerdomain *pwrdm); +int pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank); +int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank); +int pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank); + +int pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm); +int pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm); +bool pwrdm_has_hdwr_sar(struct powerdomain *pwrdm); + +int pwrdm_state_switch_nolock(struct powerdomain *pwrdm); +int pwrdm_state_switch(struct powerdomain *pwrdm); +int pwrdm_pre_transition(struct powerdomain *pwrdm); +int pwrdm_post_transition(struct powerdomain *pwrdm); + +extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u8 state); + +extern void omap242x_powerdomains_init(void); +extern void omap243x_powerdomains_init(void); +extern void omap3xxx_powerdomains_init(void); +extern void am33xx_powerdomains_init(void); +extern void omap44xx_powerdomains_init(void); +extern void omap54xx_powerdomains_init(void); +extern void dra7xx_powerdomains_init(void); +void am43xx_powerdomains_init(void); + +extern struct pwrdm_ops omap2_pwrdm_operations; +extern struct pwrdm_ops omap3_pwrdm_operations; +extern struct pwrdm_ops am33xx_pwrdm_operations; +extern struct pwrdm_ops omap4_pwrdm_operations; + +/* Common Internal functions used across OMAP rev's */ +extern u32 omap2_pwrdm_get_mem_bank_onstate_mask(u8 bank); +extern u32 omap2_pwrdm_get_mem_bank_retst_mask(u8 bank); +extern u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank); + +extern struct powerdomain wkup_omap2_pwrdm; +extern struct powerdomain gfx_omap2_pwrdm; + +extern void pwrdm_lock(struct powerdomain *pwrdm); +extern void pwrdm_unlock(struct powerdomain *pwrdm); + +#endif diff --git a/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c new file mode 100644 index 000000000..7374c8904 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2/3 common powerdomain definitions + * + * Copyright (C) 2007-2008, 2011 Texas Instruments, Inc. + * Copyright (C) 2007-2011 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + */ + +/* + * The names for the DSP/IVA2 powerdomains are confusing. + * + * Most OMAP chips have an on-board DSP. + * + * On the 2420, this is a 'C55 DSP called, simply, the DSP. Its + * powerdomain is called the "DSP power domain." On the 2430, the + * on-board DSP is a 'C64 DSP, now called (along with its hardware + * accelerators) the IVA2 or IVA2.1. Its powerdomain is still called + * the "DSP power domain." On the 3430, the DSP is a 'C64 DSP like the + * 2430, also known as the IVA2; but its powerdomain is now called the + * "IVA2 power domain." + * + * The 2420 also has something called the IVA, which is a separate ARM + * core, and has nothing to do with the DSP/IVA2. + * + * Ideally the DSP/IVA2 could just be the same powerdomain, but the PRCM + * address offset is different between the C55 and C64 DSPs. + */ + +#include "powerdomain.h" + +#include "prcm-common.h" +#include "prm.h" + +/* OMAP2/3-common powerdomains */ + +/* + * The GFX powerdomain is not present on 3430ES2, but currently we do not + * have a macro to filter it out at compile-time. + */ +struct powerdomain gfx_omap2_pwrdm = { + .name = "gfx_pwrdm", + .prcm_offs = GFX_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +struct powerdomain wkup_omap2_pwrdm = { + .name = "wkup_pwrdm", + .prcm_offs = WKUP_MOD, + .pwrsts = PWRSTS_ON, + .voltdm = { .name = "wakeup" }, +}; diff --git a/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.h b/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.h new file mode 100644 index 000000000..d7cc26af5 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2/3 common powerdomains - prototypes + * + * Copyright (C) 2008 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_POWERDOMAINS2XXX_3XXX_DATA_H +#define __ARCH_ARM_MACH_OMAP2_POWERDOMAINS2XXX_3XXX_DATA_H + +#include "powerdomain.h" + +extern struct powerdomain gfx_omap2_pwrdm; +extern struct powerdomain wkup_omap2_pwrdm; + +#endif diff --git a/arch/arm/mach-omap2/powerdomains2xxx_data.c b/arch/arm/mach-omap2/powerdomains2xxx_data.c new file mode 100644 index 000000000..fa259adbd --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains2xxx_data.c @@ -0,0 +1,134 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2XXX powerdomain definitions + * + * Copyright (C) 2007-2008, 2011 Texas Instruments, Inc. + * Copyright (C) 2007-2011 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include "soc.h" +#include "powerdomain.h" +#include "powerdomains2xxx_3xxx_data.h" + +#include "prcm-common.h" +#include "prm2xxx_3xxx.h" +#include "prm-regbits-24xx.h" + +/* 24XX powerdomains and dependencies */ + +/* Powerdomains */ + +static struct powerdomain dsp_pwrdm = { + .name = "dsp_pwrdm", + .prcm_offs = OMAP24XX_DSP_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain mpu_24xx_pwrdm = { + .name = "mpu_pwrdm", + .prcm_offs = MPU_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain core_24xx_pwrdm = { + .name = "core_pwrdm", + .prcm_offs = CORE_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 3, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */ + [1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */ + [2] = PWRSTS_OFF_RET, /* MEM3RETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */ + [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */ + [2] = PWRSTS_OFF_RET_ON, /* MEM3ONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + + +/* + * 2430-specific powerdomains + */ + +/* XXX 2430 KILLDOMAINWKUP bit? No current users apparently */ + +static struct powerdomain mdm_pwrdm = { + .name = "mdm_pwrdm", + .prcm_offs = OMAP2430_MDM_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +/* + * + */ + +static struct powerdomain *powerdomains_omap24xx[] __initdata = { + &wkup_omap2_pwrdm, + &gfx_omap2_pwrdm, + &dsp_pwrdm, + &mpu_24xx_pwrdm, + &core_24xx_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_omap2430[] __initdata = { + &mdm_pwrdm, + NULL +}; + +void __init omap242x_powerdomains_init(void) +{ + if (!cpu_is_omap2420()) + return; + + pwrdm_register_platform_funcs(&omap2_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_omap24xx); + pwrdm_complete_init(); +} + +void __init omap243x_powerdomains_init(void) +{ + if (!cpu_is_omap2430()) + return; + + pwrdm_register_platform_funcs(&omap2_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_omap24xx); + pwrdm_register_pwrdms(powerdomains_omap2430); + pwrdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/powerdomains33xx_data.c b/arch/arm/mach-omap2/powerdomains33xx_data.c new file mode 100644 index 000000000..1d58fd1a2 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains33xx_data.c @@ -0,0 +1,177 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AM33XX Power domain data + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include "powerdomain.h" +#include "prcm-common.h" +#include "prm-regbits-33xx.h" +#include "prm33xx.h" + +static struct powerdomain gfx_33xx_pwrdm = { + .name = "gfx_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM33XX_PRM_GFX_MOD, + .pwrstctrl_offs = AM33XX_PM_GFX_PWRSTCTRL_OFFSET, + .pwrstst_offs = AM33XX_PM_GFX_PWRSTST_OFFSET, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, + .banks = 1, + .logicretstate_mask = AM33XX_LOGICRETSTATE_MASK, + .mem_on_mask = { + [0] = AM33XX_GFX_MEM_ONSTATE_MASK, /* gfx_mem */ + }, + .mem_ret_mask = { + [0] = AM33XX_GFX_MEM_RETSTATE_MASK, /* gfx_mem */ + }, + .mem_pwrst_mask = { + [0] = AM33XX_GFX_MEM_STATEST_MASK, /* gfx_mem */ + }, + .mem_retst_mask = { + [0] = AM33XX_GFX_MEM_RETSTATE_MASK, /* gfx_mem */ + }, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* gfx_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* gfx_mem */ + }, +}; + +static struct powerdomain rtc_33xx_pwrdm = { + .name = "rtc_pwrdm", + .voltdm = { .name = "rtc" }, + .prcm_offs = AM33XX_PRM_RTC_MOD, + .pwrstctrl_offs = AM33XX_PM_RTC_PWRSTCTRL_OFFSET, + .pwrstst_offs = AM33XX_PM_RTC_PWRSTST_OFFSET, + .pwrsts = PWRSTS_ON, + .logicretstate_mask = AM33XX_LOGICRETSTATE_MASK, +}; + +static struct powerdomain wkup_33xx_pwrdm = { + .name = "wkup_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM33XX_PRM_WKUP_MOD, + .pwrstctrl_offs = AM33XX_PM_WKUP_PWRSTCTRL_OFFSET, + .pwrstst_offs = AM33XX_PM_WKUP_PWRSTST_OFFSET, + .pwrsts = PWRSTS_ON, + .logicretstate_mask = AM33XX_LOGICRETSTATE_3_3_MASK, +}; + +static struct powerdomain per_33xx_pwrdm = { + .name = "per_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM33XX_PRM_PER_MOD, + .pwrstctrl_offs = AM33XX_PM_PER_PWRSTCTRL_OFFSET, + .pwrstst_offs = AM33XX_PM_PER_PWRSTST_OFFSET, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, + .banks = 3, + .logicretstate_mask = AM33XX_LOGICRETSTATE_3_3_MASK, + .mem_on_mask = { + [0] = AM33XX_PRUSS_MEM_ONSTATE_MASK, /* pruss_mem */ + [1] = AM33XX_PER_MEM_ONSTATE_MASK, /* per_mem */ + [2] = AM33XX_RAM_MEM_ONSTATE_MASK, /* ram_mem */ + }, + .mem_ret_mask = { + [0] = AM33XX_PRUSS_MEM_RETSTATE_MASK, /* pruss_mem */ + [1] = AM33XX_PER_MEM_RETSTATE_MASK, /* per_mem */ + [2] = AM33XX_RAM_MEM_RETSTATE_MASK, /* ram_mem */ + }, + .mem_pwrst_mask = { + [0] = AM33XX_PRUSS_MEM_STATEST_MASK, /* pruss_mem */ + [1] = AM33XX_PER_MEM_STATEST_MASK, /* per_mem */ + [2] = AM33XX_RAM_MEM_STATEST_MASK, /* ram_mem */ + }, + .mem_retst_mask = { + [0] = AM33XX_PRUSS_MEM_RETSTATE_MASK, /* pruss_mem */ + [1] = AM33XX_PER_MEM_RETSTATE_MASK, /* per_mem */ + [2] = AM33XX_RAM_MEM_RETSTATE_MASK, /* ram_mem */ + }, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* pruss_mem */ + [1] = PWRSTS_OFF_RET, /* per_mem */ + [2] = PWRSTS_OFF_RET, /* ram_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* pruss_mem */ + [1] = PWRSTS_ON, /* per_mem */ + [2] = PWRSTS_ON, /* ram_mem */ + }, +}; + +static struct powerdomain mpu_33xx_pwrdm = { + .name = "mpu_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = AM33XX_PRM_MPU_MOD, + .pwrstctrl_offs = AM33XX_PM_MPU_PWRSTCTRL_OFFSET, + .pwrstst_offs = AM33XX_PM_MPU_PWRSTST_OFFSET, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, + .banks = 3, + .logicretstate_mask = AM33XX_LOGICRETSTATE_MASK, + .mem_on_mask = { + [0] = AM33XX_MPU_L1_ONSTATE_MASK, /* mpu_l1 */ + [1] = AM33XX_MPU_L2_ONSTATE_MASK, /* mpu_l2 */ + [2] = AM33XX_MPU_RAM_ONSTATE_MASK, /* mpu_ram */ + }, + .mem_ret_mask = { + [0] = AM33XX_MPU_L1_RETSTATE_MASK, /* mpu_l1 */ + [1] = AM33XX_MPU_L2_RETSTATE_MASK, /* mpu_l2 */ + [2] = AM33XX_MPU_RAM_RETSTATE_MASK, /* mpu_ram */ + }, + .mem_pwrst_mask = { + [0] = AM33XX_MPU_L1_STATEST_MASK, /* mpu_l1 */ + [1] = AM33XX_MPU_L2_STATEST_MASK, /* mpu_l2 */ + [2] = AM33XX_MPU_RAM_STATEST_MASK, /* mpu_ram */ + }, + .mem_retst_mask = { + [0] = AM33XX_MPU_L1_RETSTATE_MASK, /* mpu_l1 */ + [1] = AM33XX_MPU_L2_RETSTATE_MASK, /* mpu_l2 */ + [2] = AM33XX_MPU_RAM_RETSTATE_MASK, /* mpu_ram */ + }, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* mpu_l1 */ + [1] = PWRSTS_OFF_RET, /* mpu_l2 */ + [2] = PWRSTS_OFF_RET, /* mpu_ram */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* mpu_l1 */ + [1] = PWRSTS_ON, /* mpu_l2 */ + [2] = PWRSTS_ON, /* mpu_ram */ + }, +}; + +static struct powerdomain cefuse_33xx_pwrdm = { + .name = "cefuse_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM33XX_PRM_CEFUSE_MOD, + .pwrstctrl_offs = AM33XX_PM_CEFUSE_PWRSTCTRL_OFFSET, + .pwrstst_offs = AM33XX_PM_CEFUSE_PWRSTST_OFFSET, + .pwrsts = PWRSTS_OFF_ON, +}; + +static struct powerdomain *powerdomains_am33xx[] __initdata = { + &gfx_33xx_pwrdm, + &rtc_33xx_pwrdm, + &wkup_33xx_pwrdm, + &per_33xx_pwrdm, + &mpu_33xx_pwrdm, + &cefuse_33xx_pwrdm, + NULL, +}; + +void __init am33xx_powerdomains_init(void) +{ + pwrdm_register_platform_funcs(&am33xx_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_am33xx); + pwrdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c new file mode 100644 index 000000000..3564fade6 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c @@ -0,0 +1,623 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 powerdomain definitions + * + * Copyright (C) 2007-2008, 2011 Texas Instruments, Inc. + * Copyright (C) 2007-2011 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/bug.h> + +#include "soc.h" +#include "powerdomain.h" +#include "powerdomains2xxx_3xxx_data.h" +#include "prcm-common.h" +#include "prm2xxx_3xxx.h" +#include "prm-regbits-34xx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-34xx.h" + +/* + * 34XX-specific powerdomains, dependencies + */ + +/* + * Powerdomains + */ + +static struct powerdomain iva2_pwrdm = { + .name = "iva2_pwrdm", + .prcm_offs = OMAP3430_IVA2_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 4, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, + [1] = PWRSTS_OFF_RET, + [2] = PWRSTS_OFF_RET, + [3] = PWRSTS_OFF_RET, + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, + [1] = PWRSTS_ON, + [2] = PWRSTS_OFF_ON, + [3] = PWRSTS_ON, + }, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain mpu_3xxx_pwrdm = { + .name = "mpu_pwrdm", + .prcm_offs = MPU_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .flags = PWRDM_HAS_MPU_QUIRK, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_ON, + }, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain mpu_am35x_pwrdm = { + .name = "mpu_pwrdm", + .prcm_offs = MPU_MOD, + .pwrsts = PWRSTS_ON, + .pwrsts_logic_ret = PWRSTS_ON, + .flags = PWRDM_HAS_MPU_QUIRK, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_ON, + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, + }, + .voltdm = { .name = "mpu_iva" }, +}; + +/* + * The USBTLL Save-and-Restore mechanism is broken on + * 3430s up to ES3.0 and 3630ES1.0. Hence this feature + * needs to be disabled on these chips. + * Refer: 3430 errata ID i459 and 3630 errata ID i579 + * + * Note: setting the SAR flag could help for errata ID i478 + * which applies to 3430 <= ES3.1, but since the SAR feature + * is broken, do not use it. + */ +static struct powerdomain core_3xxx_pre_es3_1_pwrdm = { + .name = "core_pwrdm", + .prcm_offs = CORE_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */ + [1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */ + [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain core_3xxx_es3_1_pwrdm = { + .name = "core_pwrdm", + .prcm_offs = CORE_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + /* + * Setting the SAR flag for errata ID i478 which applies + * to 3430 <= ES3.1 + */ + .flags = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */ + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */ + [1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */ + [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain core_am35x_pwrdm = { + .name = "core_pwrdm", + .prcm_offs = CORE_MOD, + .pwrsts = PWRSTS_ON, + .pwrsts_logic_ret = PWRSTS_ON, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_ON, /* MEM1RETSTATE */ + [1] = PWRSTS_ON, /* MEM2RETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEM1ONSTATE */ + [1] = PWRSTS_ON, /* MEM2ONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain dss_pwrdm = { + .name = "dss_pwrdm", + .prcm_offs = OMAP3430_DSS_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain dss_am35x_pwrdm = { + .name = "dss_pwrdm", + .prcm_offs = OMAP3430_DSS_MOD, + .pwrsts = PWRSTS_ON, + .pwrsts_logic_ret = PWRSTS_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_ON, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +/* + * Although the 34XX TRM Rev K Table 4-371 notes that retention is a + * possible SGX powerstate, the SGX device itself does not support + * retention. + */ +static struct powerdomain sgx_pwrdm = { + .name = "sgx_pwrdm", + .prcm_offs = OMAP3430ES2_SGX_MOD, + /* XXX This is accurate for 3430 SGX, but what about GFX? */ + .pwrsts = PWRSTS_OFF_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain sgx_am35x_pwrdm = { + .name = "sgx_pwrdm", + .prcm_offs = OMAP3430ES2_SGX_MOD, + .pwrsts = PWRSTS_ON, + .pwrsts_logic_ret = PWRSTS_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_ON, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain cam_pwrdm = { + .name = "cam_pwrdm", + .prcm_offs = OMAP3430_CAM_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain per_pwrdm = { + .name = "per_pwrdm", + .prcm_offs = OMAP3430_PER_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain per_am35x_pwrdm = { + .name = "per_pwrdm", + .prcm_offs = OMAP3430_PER_MOD, + .pwrsts = PWRSTS_ON, + .pwrsts_logic_ret = PWRSTS_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_ON, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain emu_pwrdm = { + .name = "emu_pwrdm", + .prcm_offs = OMAP3430_EMU_MOD, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain neon_pwrdm = { + .name = "neon_pwrdm", + .prcm_offs = OMAP3430_NEON_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain neon_am35x_pwrdm = { + .name = "neon_pwrdm", + .prcm_offs = OMAP3430_NEON_MOD, + .pwrsts = PWRSTS_ON, + .pwrsts_logic_ret = PWRSTS_ON, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain usbhost_pwrdm = { + .name = "usbhost_pwrdm", + .prcm_offs = OMAP3430ES2_USBHOST_MOD, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + /* + * REVISIT: Enabling usb host save and restore mechanism seems to + * leave the usb host domain permanently in ACTIVE mode after + * changing the usb host power domain state from OFF to active once. + * Disabling for now. + */ + /*.flags = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */ + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* MEMRETSTATE */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* MEMONSTATE */ + }, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain dpll1_pwrdm = { + .name = "dpll1_pwrdm", + .prcm_offs = MPU_MOD, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain dpll2_pwrdm = { + .name = "dpll2_pwrdm", + .prcm_offs = OMAP3430_IVA2_MOD, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain dpll3_pwrdm = { + .name = "dpll3_pwrdm", + .prcm_offs = PLL_MOD, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain dpll4_pwrdm = { + .name = "dpll4_pwrdm", + .prcm_offs = PLL_MOD, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain dpll5_pwrdm = { + .name = "dpll5_pwrdm", + .prcm_offs = PLL_MOD, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain alwon_81xx_pwrdm = { + .name = "alwon_pwrdm", + .prcm_offs = TI81XX_PRM_ALWON_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain device_81xx_pwrdm = { + .name = "device_pwrdm", + .prcm_offs = TI81XX_PRM_DEVICE_MOD, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain gem_814x_pwrdm = { + .name = "gem_pwrdm", + .prcm_offs = TI814X_PRM_DSP_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "dsp" }, +}; + +static struct powerdomain ivahd_814x_pwrdm = { + .name = "ivahd_pwrdm", + .prcm_offs = TI814X_PRM_HDVICP_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "iva" }, +}; + +static struct powerdomain hdvpss_814x_pwrdm = { + .name = "hdvpss_pwrdm", + .prcm_offs = TI814X_PRM_HDVPSS_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "dsp" }, +}; + +static struct powerdomain sgx_814x_pwrdm = { + .name = "sgx_pwrdm", + .prcm_offs = TI814X_PRM_GFX_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain isp_814x_pwrdm = { + .name = "isp_pwrdm", + .prcm_offs = TI814X_PRM_ISP_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain active_81xx_pwrdm = { + .name = "active_pwrdm", + .prcm_offs = TI816X_PRM_ACTIVE_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain default_81xx_pwrdm = { + .name = "default_pwrdm", + .prcm_offs = TI81XX_PRM_DEFAULT_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain ivahd0_816x_pwrdm = { + .name = "ivahd0_pwrdm", + .prcm_offs = TI816X_PRM_IVAHD0_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain ivahd1_816x_pwrdm = { + .name = "ivahd1_pwrdm", + .prcm_offs = TI816X_PRM_IVAHD1_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain ivahd2_816x_pwrdm = { + .name = "ivahd2_pwrdm", + .prcm_offs = TI816X_PRM_IVAHD2_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain sgx_816x_pwrdm = { + .name = "sgx_pwrdm", + .prcm_offs = TI816X_PRM_SGX_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +/* As powerdomains are added or removed above, this list must also be changed */ +static struct powerdomain *powerdomains_omap3430_common[] __initdata = { + &wkup_omap2_pwrdm, + &iva2_pwrdm, + &mpu_3xxx_pwrdm, + &neon_pwrdm, + &cam_pwrdm, + &dss_pwrdm, + &per_pwrdm, + &emu_pwrdm, + &dpll1_pwrdm, + &dpll2_pwrdm, + &dpll3_pwrdm, + &dpll4_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_omap3430es1[] __initdata = { + &gfx_omap2_pwrdm, + &core_3xxx_pre_es3_1_pwrdm, + NULL +}; + +/* also includes 3630ES1.0 */ +static struct powerdomain *powerdomains_omap3430es2_es3_0[] __initdata = { + &core_3xxx_pre_es3_1_pwrdm, + &sgx_pwrdm, + &usbhost_pwrdm, + &dpll5_pwrdm, + NULL +}; + +/* also includes 3630ES1.1+ */ +static struct powerdomain *powerdomains_omap3430es3_1plus[] __initdata = { + &core_3xxx_es3_1_pwrdm, + &sgx_pwrdm, + &usbhost_pwrdm, + &dpll5_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_am35x[] __initdata = { + &wkup_omap2_pwrdm, + &mpu_am35x_pwrdm, + &neon_am35x_pwrdm, + &core_am35x_pwrdm, + &sgx_am35x_pwrdm, + &dss_am35x_pwrdm, + &per_am35x_pwrdm, + &emu_pwrdm, + &dpll1_pwrdm, + &dpll3_pwrdm, + &dpll4_pwrdm, + &dpll5_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_ti814x[] __initdata = { + &alwon_81xx_pwrdm, + &device_81xx_pwrdm, + &active_81xx_pwrdm, + &default_81xx_pwrdm, + &gem_814x_pwrdm, + &ivahd_814x_pwrdm, + &hdvpss_814x_pwrdm, + &sgx_814x_pwrdm, + &isp_814x_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_ti816x[] __initdata = { + &alwon_81xx_pwrdm, + &device_81xx_pwrdm, + &active_81xx_pwrdm, + &default_81xx_pwrdm, + &ivahd0_816x_pwrdm, + &ivahd1_816x_pwrdm, + &ivahd2_816x_pwrdm, + &sgx_816x_pwrdm, + NULL +}; + +/* TI81XX specific ops */ +#define TI81XX_PM_PWSTCTRL 0x0000 +#define TI81XX_RM_RSTCTRL 0x0010 +#define TI81XX_PM_PWSTST 0x0004 + +static int ti81xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, TI81XX_PM_PWSTCTRL); + return 0; +} + +static int ti81xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + TI81XX_PM_PWSTCTRL, + OMAP_POWERSTATE_MASK); +} + +static int ti81xx_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + (pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL : + TI81XX_PM_PWSTST, + OMAP_POWERSTATEST_MASK); +} + +static int ti81xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + (pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL : + TI81XX_PM_PWSTST, + OMAP3430_LOGICSTATEST_MASK); +} + +static int ti81xx_pwrdm_wait_transition(struct powerdomain *pwrdm) +{ + u32 c = 0; + + while ((omap2_prm_read_mod_reg(pwrdm->prcm_offs, + (pwrdm->prcm_offs == TI814X_PRM_GFX_MOD) ? TI81XX_RM_RSTCTRL : + TI81XX_PM_PWSTST) & + OMAP_INTRANSITION_MASK) && + (c++ < PWRDM_TRANSITION_BAILOUT)) + udelay(1); + + if (c > PWRDM_TRANSITION_BAILOUT) { + pr_err("powerdomain: %s timeout waiting for transition\n", + pwrdm->name); + return -EAGAIN; + } + + pr_debug("powerdomain: completed transition in %d loops\n", c); + + return 0; +} + +/* For dm814x we need to fix up fix GFX pwstst and rstctrl reg offsets */ +static struct pwrdm_ops ti81xx_pwrdm_operations = { + .pwrdm_set_next_pwrst = ti81xx_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = ti81xx_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = ti81xx_pwrdm_read_pwrst, + .pwrdm_read_logic_pwrst = ti81xx_pwrdm_read_logic_pwrst, + .pwrdm_wait_transition = ti81xx_pwrdm_wait_transition, +}; + +void __init omap3xxx_powerdomains_init(void) +{ + unsigned int rev; + + if (!cpu_is_omap34xx() && !cpu_is_ti81xx()) + return; + + /* Only 81xx needs custom pwrdm_operations */ + if (!cpu_is_ti81xx()) + pwrdm_register_platform_funcs(&omap3_pwrdm_operations); + + rev = omap_rev(); + + if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) { + pwrdm_register_pwrdms(powerdomains_am35x); + } else if (rev == TI8148_REV_ES1_0 || rev == TI8148_REV_ES2_0 || + rev == TI8148_REV_ES2_1) { + pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_ti814x); + } else if (rev == TI8168_REV_ES1_0 || rev == TI8168_REV_ES1_1 + || rev == TI8168_REV_ES2_0 || rev == TI8168_REV_ES2_1) { + pwrdm_register_platform_funcs(&ti81xx_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_ti816x); + } else { + pwrdm_register_pwrdms(powerdomains_omap3430_common); + + switch (rev) { + case OMAP3430_REV_ES1_0: + pwrdm_register_pwrdms(powerdomains_omap3430es1); + break; + case OMAP3430_REV_ES2_0: + case OMAP3430_REV_ES2_1: + case OMAP3430_REV_ES3_0: + case OMAP3630_REV_ES1_0: + pwrdm_register_pwrdms(powerdomains_omap3430es2_es3_0); + break; + case OMAP3430_REV_ES3_1: + case OMAP3430_REV_ES3_1_2: + case OMAP3630_REV_ES1_1: + case OMAP3630_REV_ES1_2: + pwrdm_register_pwrdms(powerdomains_omap3430es3_1plus); + break; + default: + WARN(1, "OMAP3 powerdomain init: unknown chip type\n"); + } + } + + pwrdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/powerdomains43xx_data.c b/arch/arm/mach-omap2/powerdomains43xx_data.c new file mode 100644 index 000000000..5255f7e92 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains43xx_data.c @@ -0,0 +1,133 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AM43xx Power domains framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include "powerdomain.h" + +#include "prcm-common.h" +#include "prcm44xx.h" +#include "prcm43xx.h" + +static struct powerdomain gfx_43xx_pwrdm = { + .name = "gfx_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM43XX_PRM_GFX_INST, + .prcm_partition = AM43XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* gfx_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +static struct powerdomain mpu_43xx_pwrdm = { + .name = "mpu_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = AM43XX_PRM_MPU_INST, + .prcm_partition = AM43XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 3, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* mpu_l1 */ + [1] = PWRSTS_OFF_RET, /* mpu_l2 */ + [2] = PWRSTS_OFF_RET, /* mpu_ram */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* mpu_l1 */ + [1] = PWRSTS_ON, /* mpu_l2 */ + [2] = PWRSTS_ON, /* mpu_ram */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +static struct powerdomain rtc_43xx_pwrdm = { + .name = "rtc_pwrdm", + .voltdm = { .name = "rtc" }, + .prcm_offs = AM43XX_PRM_RTC_INST, + .prcm_partition = AM43XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, +}; + +static struct powerdomain wkup_43xx_pwrdm = { + .name = "wkup_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM43XX_PRM_WKUP_INST, + .prcm_partition = AM43XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* debugss_mem */ + }, +}; + +static struct powerdomain tamper_43xx_pwrdm = { + .name = "tamper_pwrdm", + .voltdm = { .name = "tamper" }, + .prcm_offs = AM43XX_PRM_TAMPER_INST, + .prcm_partition = AM43XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, +}; + +static struct powerdomain cefuse_43xx_pwrdm = { + .name = "cefuse_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM43XX_PRM_CEFUSE_INST, + .prcm_partition = AM43XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +static struct powerdomain per_43xx_pwrdm = { + .name = "per_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = AM43XX_PRM_PER_INST, + .prcm_partition = AM43XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 4, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* icss_mem */ + [1] = PWRSTS_OFF_RET, /* per_mem */ + [2] = PWRSTS_OFF_RET, /* ram1_mem */ + [3] = PWRSTS_OFF_RET, /* ram2_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* icss_mem */ + [1] = PWRSTS_ON, /* per_mem */ + [2] = PWRSTS_ON, /* ram1_mem */ + [3] = PWRSTS_ON, /* ram2_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +static struct powerdomain *powerdomains_am43xx[] __initdata = { + &gfx_43xx_pwrdm, + &mpu_43xx_pwrdm, + &rtc_43xx_pwrdm, + &wkup_43xx_pwrdm, + &tamper_43xx_pwrdm, + &cefuse_43xx_pwrdm, + &per_43xx_pwrdm, + NULL +}; + +static int am43xx_check_vcvp(void) +{ + return 0; +} + +void __init am43xx_powerdomains_init(void) +{ + omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp; + pwrdm_register_platform_funcs(&omap4_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_am43xx); + pwrdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/powerdomains44xx_data.c b/arch/arm/mach-omap2/powerdomains44xx_data.c new file mode 100644 index 000000000..37fd1a567 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains44xx_data.c @@ -0,0 +1,355 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 Power domains framework + * + * Copyright (C) 2009-2011 Texas Instruments, Inc. + * Copyright (C) 2009-2011 Nokia Corporation + * + * Abhijit Pagare (abhijitpagare@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * Paul Walmsley (paul@pwsan.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include "powerdomain.h" + +#include "prcm-common.h" +#include "prcm44xx.h" +#include "prm-regbits-44xx.h" +#include "prm44xx.h" +#include "prcm_mpu44xx.h" + +/* core_44xx_pwrdm: CORE power domain */ +static struct powerdomain core_44xx_pwrdm = { + .name = "core_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_CORE_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 5, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* core_nret_bank */ + [1] = PWRSTS_RET, /* core_ocmram */ + [2] = PWRSTS_RET, /* core_other_bank */ + [3] = PWRSTS_OFF_RET, /* ducati_l2ram */ + [4] = PWRSTS_OFF_RET, /* ducati_unicache */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* core_nret_bank */ + [1] = PWRSTS_ON, /* core_ocmram */ + [2] = PWRSTS_ON, /* core_other_bank */ + [3] = PWRSTS_ON, /* ducati_l2ram */ + [4] = PWRSTS_ON, /* ducati_unicache */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* gfx_44xx_pwrdm: 3D accelerator power domain */ +static struct powerdomain gfx_44xx_pwrdm = { + .name = "gfx_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_GFX_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* gfx_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* gfx_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* abe_44xx_pwrdm: Audio back end power domain */ +static struct powerdomain abe_44xx_pwrdm = { + .name = "abe_pwrdm", + .voltdm = { .name = "iva" }, + .prcm_offs = OMAP4430_PRM_ABE_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* aessmem */ + [1] = PWRSTS_OFF, /* periphmem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* aessmem */ + [1] = PWRSTS_ON, /* periphmem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* dss_44xx_pwrdm: Display subsystem power domain */ +static struct powerdomain dss_44xx_pwrdm = { + .name = "dss_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_DSS_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* dss_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* dss_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* tesla_44xx_pwrdm: Tesla processor power domain */ +static struct powerdomain tesla_44xx_pwrdm = { + .name = "tesla_pwrdm", + .voltdm = { .name = "iva" }, + .prcm_offs = OMAP4430_PRM_TESLA_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 3, + .pwrsts_mem_ret = { + [0] = PWRSTS_RET, /* tesla_edma */ + [1] = PWRSTS_OFF_RET, /* tesla_l1 */ + [2] = PWRSTS_OFF_RET, /* tesla_l2 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* tesla_edma */ + [1] = PWRSTS_ON, /* tesla_l1 */ + [2] = PWRSTS_ON, /* tesla_l2 */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* wkup_44xx_pwrdm: Wake-up power domain */ +static struct powerdomain wkup_44xx_pwrdm = { + .name = "wkup_pwrdm", + .voltdm = { .name = "wakeup" }, + .prcm_offs = OMAP4430_PRM_WKUP_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* wkup_bank */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* wkup_bank */ + }, +}; + +/* cpu0_44xx_pwrdm: MPU0 processor and Neon coprocessor power domain */ +static struct powerdomain cpu0_44xx_pwrdm = { + .name = "cpu0_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = OMAP4430_PRCM_MPU_CPU0_INST, + .prcm_partition = OMAP4430_PRCM_MPU_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* cpu0_l1 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* cpu0_l1 */ + }, +}; + +/* cpu1_44xx_pwrdm: MPU1 processor and Neon coprocessor power domain */ +static struct powerdomain cpu1_44xx_pwrdm = { + .name = "cpu1_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = OMAP4430_PRCM_MPU_CPU1_INST, + .prcm_partition = OMAP4430_PRCM_MPU_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* cpu1_l1 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* cpu1_l1 */ + }, +}; + +/* emu_44xx_pwrdm: Emulation power domain */ +static struct powerdomain emu_44xx_pwrdm = { + .name = "emu_pwrdm", + .voltdm = { .name = "wakeup" }, + .prcm_offs = OMAP4430_PRM_EMU_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* emu_bank */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* emu_bank */ + }, +}; + +/* mpu_44xx_pwrdm: Modena processor and the Neon coprocessor power domain */ +static struct powerdomain mpu_44xx_pwrdm = { + .name = "mpu_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = OMAP4430_PRM_MPU_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 3, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* mpu_l1 */ + [1] = PWRSTS_OFF_RET, /* mpu_l2 */ + [2] = PWRSTS_RET, /* mpu_ram */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* mpu_l1 */ + [1] = PWRSTS_ON, /* mpu_l2 */ + [2] = PWRSTS_ON, /* mpu_ram */ + }, +}; + +/* ivahd_44xx_pwrdm: IVA-HD power domain */ +static struct powerdomain ivahd_44xx_pwrdm = { + .name = "ivahd_pwrdm", + .voltdm = { .name = "iva" }, + .prcm_offs = OMAP4430_PRM_IVAHD_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF, + .banks = 4, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* hwa_mem */ + [1] = PWRSTS_OFF_RET, /* sl2_mem */ + [2] = PWRSTS_OFF_RET, /* tcm1_mem */ + [3] = PWRSTS_OFF_RET, /* tcm2_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* hwa_mem */ + [1] = PWRSTS_ON, /* sl2_mem */ + [2] = PWRSTS_ON, /* tcm1_mem */ + [3] = PWRSTS_ON, /* tcm2_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* cam_44xx_pwrdm: Camera subsystem power domain */ +static struct powerdomain cam_44xx_pwrdm = { + .name = "cam_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_CAM_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* cam_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* cam_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* l3init_44xx_pwrdm: L3 initators pheripherals power domain */ +static struct powerdomain l3init_44xx_pwrdm = { + .name = "l3init_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_L3INIT_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* l3init_bank1 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* l3init_bank1 */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* l4per_44xx_pwrdm: Target peripherals power domain */ +static struct powerdomain l4per_44xx_pwrdm = { + .name = "l4per_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_L4PER_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF, /* nonretained_bank */ + [1] = PWRSTS_RET, /* retained_bank */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* nonretained_bank */ + [1] = PWRSTS_ON, /* retained_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* + * always_on_core_44xx_pwrdm: Always ON logic that sits in VDD_CORE voltage + * domain + */ +static struct powerdomain always_on_core_44xx_pwrdm = { + .name = "always_on_core_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_ALWAYS_ON_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_ON, +}; + +/* cefuse_44xx_pwrdm: Customer efuse controller power domain */ +static struct powerdomain cefuse_44xx_pwrdm = { + .name = "cefuse_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP4430_PRM_CEFUSE_INST, + .prcm_partition = OMAP4430_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* + * The following power domains are not under SW control + * + * always_on_iva + * always_on_mpu + * stdefuse + */ + +/* As powerdomains are added or removed above, this list must also be changed */ +static struct powerdomain *powerdomains_omap44xx[] __initdata = { + &core_44xx_pwrdm, + &gfx_44xx_pwrdm, + &abe_44xx_pwrdm, + &dss_44xx_pwrdm, + &tesla_44xx_pwrdm, + &wkup_44xx_pwrdm, + &cpu0_44xx_pwrdm, + &cpu1_44xx_pwrdm, + &emu_44xx_pwrdm, + &mpu_44xx_pwrdm, + &ivahd_44xx_pwrdm, + &cam_44xx_pwrdm, + &l3init_44xx_pwrdm, + &l4per_44xx_pwrdm, + &always_on_core_44xx_pwrdm, + &cefuse_44xx_pwrdm, + NULL +}; + +void __init omap44xx_powerdomains_init(void) +{ + pwrdm_register_platform_funcs(&omap4_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_omap44xx); + pwrdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/powerdomains54xx_data.c b/arch/arm/mach-omap2/powerdomains54xx_data.c new file mode 100644 index 000000000..5506da2ce --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains54xx_data.c @@ -0,0 +1,327 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP54XX Power domains framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + * + * Abhijit Pagare (abhijitpagare@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * Paul Walmsley (paul@pwsan.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include "powerdomain.h" + +#include "prcm-common.h" +#include "prcm44xx.h" +#include "prm54xx.h" +#include "prcm_mpu54xx.h" + +/* core_54xx_pwrdm: CORE power domain */ +static struct powerdomain core_54xx_pwrdm = { + .name = "core_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP54XX_PRM_CORE_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 5, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* core_nret_bank */ + [1] = PWRSTS_OFF_RET, /* core_ocmram */ + [2] = PWRSTS_OFF_RET, /* core_other_bank */ + [3] = PWRSTS_OFF_RET, /* ipu_l2ram */ + [4] = PWRSTS_OFF_RET, /* ipu_unicache */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* core_nret_bank */ + [1] = PWRSTS_OFF_RET, /* core_ocmram */ + [2] = PWRSTS_OFF_RET, /* core_other_bank */ + [3] = PWRSTS_OFF_RET, /* ipu_l2ram */ + [4] = PWRSTS_OFF_RET, /* ipu_unicache */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* abe_54xx_pwrdm: Audio back end power domain */ +static struct powerdomain abe_54xx_pwrdm = { + .name = "abe_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP54XX_PRM_ABE_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* aessmem */ + [1] = PWRSTS_OFF_RET, /* periphmem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* aessmem */ + [1] = PWRSTS_OFF_RET, /* periphmem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* coreaon_54xx_pwrdm: Always ON logic that sits in VDD_CORE voltage domain */ +static struct powerdomain coreaon_54xx_pwrdm = { + .name = "coreaon_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP54XX_PRM_COREAON_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, +}; + +/* dss_54xx_pwrdm: Display subsystem power domain */ +static struct powerdomain dss_54xx_pwrdm = { + .name = "dss_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP54XX_PRM_DSS_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* dss_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* dss_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* cpu0_54xx_pwrdm: MPU0 processor and Neon coprocessor power domain */ +static struct powerdomain cpu0_54xx_pwrdm = { + .name = "cpu0_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = OMAP54XX_PRCM_MPU_PRM_C0_INST, + .prcm_partition = OMAP54XX_PRCM_MPU_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* cpu0_l1 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* cpu0_l1 */ + }, +}; + +/* cpu1_54xx_pwrdm: MPU1 processor and Neon coprocessor power domain */ +static struct powerdomain cpu1_54xx_pwrdm = { + .name = "cpu1_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = OMAP54XX_PRCM_MPU_PRM_C1_INST, + .prcm_partition = OMAP54XX_PRCM_MPU_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* cpu1_l1 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* cpu1_l1 */ + }, +}; + +/* emu_54xx_pwrdm: Emulation power domain */ +static struct powerdomain emu_54xx_pwrdm = { + .name = "emu_pwrdm", + .voltdm = { .name = "wkup" }, + .prcm_offs = OMAP54XX_PRM_EMU_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* emu_bank */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* emu_bank */ + }, +}; + +/* mpu_54xx_pwrdm: Modena processor and the Neon coprocessor power domain */ +static struct powerdomain mpu_54xx_pwrdm = { + .name = "mpu_pwrdm", + .voltdm = { .name = "mpu" }, + .prcm_offs = OMAP54XX_PRM_MPU_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* mpu_l2 */ + [1] = PWRSTS_RET, /* mpu_ram */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* mpu_l2 */ + [1] = PWRSTS_OFF_RET, /* mpu_ram */ + }, +}; + +/* custefuse_54xx_pwrdm: Customer efuse controller power domain */ +static struct powerdomain custefuse_54xx_pwrdm = { + .name = "custefuse_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP54XX_PRM_CUSTEFUSE_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* dsp_54xx_pwrdm: Tesla processor power domain */ +static struct powerdomain dsp_54xx_pwrdm = { + .name = "dsp_pwrdm", + .voltdm = { .name = "mm" }, + .prcm_offs = OMAP54XX_PRM_DSP_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 3, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* dsp_edma */ + [1] = PWRSTS_OFF_RET, /* dsp_l1 */ + [2] = PWRSTS_OFF_RET, /* dsp_l2 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* dsp_edma */ + [1] = PWRSTS_OFF_RET, /* dsp_l1 */ + [2] = PWRSTS_OFF_RET, /* dsp_l2 */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* cam_54xx_pwrdm: Camera subsystem power domain */ +static struct powerdomain cam_54xx_pwrdm = { + .name = "cam_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP54XX_PRM_CAM_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* cam_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* cam_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* l3init_54xx_pwrdm: L3 initators pheripherals power domain */ +static struct powerdomain l3init_54xx_pwrdm = { + .name = "l3init_pwrdm", + .voltdm = { .name = "core" }, + .prcm_offs = OMAP54XX_PRM_L3INIT_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF_RET, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* l3init_bank1 */ + [1] = PWRSTS_OFF_RET, /* l3init_bank2 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* l3init_bank1 */ + [1] = PWRSTS_OFF_RET, /* l3init_bank2 */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* gpu_54xx_pwrdm: 3D accelerator power domain */ +static struct powerdomain gpu_54xx_pwrdm = { + .name = "gpu_pwrdm", + .voltdm = { .name = "mm" }, + .prcm_offs = OMAP54XX_PRM_GPU_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* gpu_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* gpu_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* wkupaon_54xx_pwrdm: Wake-up power domain */ +static struct powerdomain wkupaon_54xx_pwrdm = { + .name = "wkupaon_pwrdm", + .voltdm = { .name = "wkup" }, + .prcm_offs = OMAP54XX_PRM_WKUPAON_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, + .banks = 1, + .pwrsts_mem_ret = { + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* wkup_bank */ + }, +}; + +/* iva_54xx_pwrdm: IVA-HD power domain */ +static struct powerdomain iva_54xx_pwrdm = { + .name = "iva_pwrdm", + .voltdm = { .name = "mm" }, + .prcm_offs = OMAP54XX_PRM_IVA_INST, + .prcm_partition = OMAP54XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_RET_ON, + .pwrsts_logic_ret = PWRSTS_OFF, + .banks = 4, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* hwa_mem */ + [1] = PWRSTS_OFF_RET, /* sl2_mem */ + [2] = PWRSTS_OFF_RET, /* tcm1_mem */ + [3] = PWRSTS_OFF_RET, /* tcm2_mem */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_OFF_RET, /* hwa_mem */ + [1] = PWRSTS_OFF_RET, /* sl2_mem */ + [2] = PWRSTS_OFF_RET, /* tcm1_mem */ + [3] = PWRSTS_OFF_RET, /* tcm2_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* + * The following power domains are not under SW control + * + * mpuaon + * mmaon + */ + +/* As powerdomains are added or removed above, this list must also be changed */ +static struct powerdomain *powerdomains_omap54xx[] __initdata = { + &core_54xx_pwrdm, + &abe_54xx_pwrdm, + &coreaon_54xx_pwrdm, + &dss_54xx_pwrdm, + &cpu0_54xx_pwrdm, + &cpu1_54xx_pwrdm, + &emu_54xx_pwrdm, + &mpu_54xx_pwrdm, + &custefuse_54xx_pwrdm, + &dsp_54xx_pwrdm, + &cam_54xx_pwrdm, + &l3init_54xx_pwrdm, + &gpu_54xx_pwrdm, + &wkupaon_54xx_pwrdm, + &iva_54xx_pwrdm, + NULL +}; + +void __init omap54xx_powerdomains_init(void) +{ + pwrdm_register_platform_funcs(&omap4_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_omap54xx); + pwrdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/powerdomains7xx_data.c b/arch/arm/mach-omap2/powerdomains7xx_data.c new file mode 100644 index 000000000..921cb1b29 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains7xx_data.c @@ -0,0 +1,410 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * DRA7xx Power domains framework + * + * Copyright (C) 2009-2013 Texas Instruments, Inc. + * Copyright (C) 2009-2011 Nokia Corporation + * + * Generated by code originally written by: + * Abhijit Pagare (abhijitpagare@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * Paul Walmsley (paul@pwsan.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include "powerdomain.h" + +#include "prcm-common.h" +#include "prcm44xx.h" +#include "prm7xx.h" +#include "prcm_mpu7xx.h" +#include "soc.h" + +/* iva_7xx_pwrdm: IVA-HD power domain */ +static struct powerdomain iva_7xx_pwrdm = { + .name = "iva_pwrdm", + .prcm_offs = DRA7XX_PRM_IVA_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 4, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* hwa_mem */ + [1] = PWRSTS_ON, /* sl2_mem */ + [2] = PWRSTS_ON, /* tcm1_mem */ + [3] = PWRSTS_ON, /* tcm2_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* rtc_7xx_pwrdm: */ +static struct powerdomain rtc_7xx_pwrdm = { + .name = "rtc_pwrdm", + .prcm_offs = DRA7XX_PRM_RTC_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, +}; + +/* custefuse_7xx_pwrdm: Customer efuse controller power domain */ +static struct powerdomain custefuse_7xx_pwrdm = { + .name = "custefuse_pwrdm", + .prcm_offs = DRA7XX_PRM_CUSTEFUSE_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* custefuse_aon_7xx_pwrdm: Customer efuse controller power domain */ +static struct powerdomain custefuse_aon_7xx_pwrdm = { + .name = "custefuse_pwrdm", + .prcm_offs = DRA7XX_PRM_CUSTEFUSE_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, +}; + +/* ipu_7xx_pwrdm: Audio back end power domain */ +static struct powerdomain ipu_7xx_pwrdm = { + .name = "ipu_pwrdm", + .prcm_offs = DRA7XX_PRM_IPU_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 2, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* aessmem */ + [1] = PWRSTS_ON, /* periphmem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* dss_7xx_pwrdm: Display subsystem power domain */ +static struct powerdomain dss_7xx_pwrdm = { + .name = "dss_pwrdm", + .prcm_offs = DRA7XX_PRM_DSS_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* dss_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* l4per_7xx_pwrdm: Target peripherals power domain */ +static struct powerdomain l4per_7xx_pwrdm = { + .name = "l4per_pwrdm", + .prcm_offs = DRA7XX_PRM_L4PER_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, + .banks = 2, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* nonretained_bank */ + [1] = PWRSTS_ON, /* retained_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* gpu_7xx_pwrdm: 3D accelerator power domain */ +static struct powerdomain gpu_7xx_pwrdm = { + .name = "gpu_pwrdm", + .prcm_offs = DRA7XX_PRM_GPU_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* gpu_mem */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* wkupaon_7xx_pwrdm: Wake-up power domain */ +static struct powerdomain wkupaon_7xx_pwrdm = { + .name = "wkupaon_pwrdm", + .prcm_offs = DRA7XX_PRM_WKUPAON_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* wkup_bank */ + }, +}; + +/* core_7xx_pwrdm: CORE power domain */ +static struct powerdomain core_7xx_pwrdm = { + .name = "core_pwrdm", + .prcm_offs = DRA7XX_PRM_CORE_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, + .banks = 5, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* core_nret_bank */ + [1] = PWRSTS_ON, /* core_ocmram */ + [2] = PWRSTS_ON, /* core_other_bank */ + [3] = PWRSTS_ON, /* ipu_l2ram */ + [4] = PWRSTS_ON, /* ipu_unicache */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* coreaon_7xx_pwrdm: Always ON logic that sits in VDD_CORE voltage domain */ +static struct powerdomain coreaon_7xx_pwrdm = { + .name = "coreaon_pwrdm", + .prcm_offs = DRA7XX_PRM_COREAON_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, +}; + +/* cpu0_7xx_pwrdm: MPU0 processor and Neon coprocessor power domain */ +static struct powerdomain cpu0_7xx_pwrdm = { + .name = "cpu0_pwrdm", + .prcm_offs = DRA7XX_MPU_PRCM_PRM_C0_INST, + .prcm_partition = DRA7XX_MPU_PRCM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* cpu0_l1 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* cpu0_l1 */ + }, +}; + +/* cpu1_7xx_pwrdm: MPU1 processor and Neon coprocessor power domain */ +static struct powerdomain cpu1_7xx_pwrdm = { + .name = "cpu1_pwrdm", + .prcm_offs = DRA7XX_MPU_PRCM_PRM_C1_INST, + .prcm_partition = DRA7XX_MPU_PRCM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 1, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* cpu1_l1 */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* cpu1_l1 */ + }, +}; + +/* vpe_7xx_pwrdm: */ +static struct powerdomain vpe_7xx_pwrdm = { + .name = "vpe_pwrdm", + .prcm_offs = DRA7XX_PRM_VPE_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* vpe_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* mpu_7xx_pwrdm: Modena processor and the Neon coprocessor power domain */ +static struct powerdomain mpu_7xx_pwrdm = { + .name = "mpu_pwrdm", + .prcm_offs = DRA7XX_PRM_MPU_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_RET_ON, + .pwrsts_logic_ret = PWRSTS_RET, + .banks = 2, + .pwrsts_mem_ret = { + [0] = PWRSTS_OFF_RET, /* mpu_l2 */ + [1] = PWRSTS_RET, /* mpu_ram */ + }, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* mpu_l2 */ + [1] = PWRSTS_ON, /* mpu_ram */ + }, +}; + +/* l3init_7xx_pwrdm: L3 initators pheripherals power domain */ +static struct powerdomain l3init_7xx_pwrdm = { + .name = "l3init_pwrdm", + .prcm_offs = DRA7XX_PRM_L3INIT_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_ON, + .banks = 3, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* gmac_bank */ + [1] = PWRSTS_ON, /* l3init_bank1 */ + [2] = PWRSTS_ON, /* l3init_bank2 */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* eve3_7xx_pwrdm: */ +static struct powerdomain eve3_7xx_pwrdm = { + .name = "eve3_pwrdm", + .prcm_offs = DRA7XX_PRM_EVE3_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* eve3_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* emu_7xx_pwrdm: Emulation power domain */ +static struct powerdomain emu_7xx_pwrdm = { + .name = "emu_pwrdm", + .prcm_offs = DRA7XX_PRM_EMU_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* emu_bank */ + }, +}; + +/* dsp2_7xx_pwrdm: */ +static struct powerdomain dsp2_7xx_pwrdm = { + .name = "dsp2_pwrdm", + .prcm_offs = DRA7XX_PRM_DSP2_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 3, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* dsp2_edma */ + [1] = PWRSTS_ON, /* dsp2_l1 */ + [2] = PWRSTS_ON, /* dsp2_l2 */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* dsp1_7xx_pwrdm: Tesla processor power domain */ +static struct powerdomain dsp1_7xx_pwrdm = { + .name = "dsp1_pwrdm", + .prcm_offs = DRA7XX_PRM_DSP1_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 3, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* dsp1_edma */ + [1] = PWRSTS_ON, /* dsp1_l1 */ + [2] = PWRSTS_ON, /* dsp1_l2 */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* cam_7xx_pwrdm: Camera subsystem power domain */ +static struct powerdomain cam_7xx_pwrdm = { + .name = "cam_pwrdm", + .prcm_offs = DRA7XX_PRM_CAM_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* vip_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* eve4_7xx_pwrdm: */ +static struct powerdomain eve4_7xx_pwrdm = { + .name = "eve4_pwrdm", + .prcm_offs = DRA7XX_PRM_EVE4_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* eve4_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* eve2_7xx_pwrdm: */ +static struct powerdomain eve2_7xx_pwrdm = { + .name = "eve2_pwrdm", + .prcm_offs = DRA7XX_PRM_EVE2_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* eve2_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* eve1_7xx_pwrdm: */ +static struct powerdomain eve1_7xx_pwrdm = { + .name = "eve1_pwrdm", + .prcm_offs = DRA7XX_PRM_EVE1_INST, + .prcm_partition = DRA7XX_PRM_PARTITION, + .pwrsts = PWRSTS_OFF_ON, + .banks = 1, + .pwrsts_mem_on = { + [0] = PWRSTS_ON, /* eve1_bank */ + }, + .flags = PWRDM_HAS_LOWPOWERSTATECHANGE, +}; + +/* + * The following power domains are not under SW control + * + * mpuaon + * mmaon + */ + +/* As powerdomains are added or removed above, this list must also be changed */ +static struct powerdomain *powerdomains_dra7xx[] __initdata = { + &iva_7xx_pwrdm, + &rtc_7xx_pwrdm, + &ipu_7xx_pwrdm, + &dss_7xx_pwrdm, + &l4per_7xx_pwrdm, + &gpu_7xx_pwrdm, + &wkupaon_7xx_pwrdm, + &core_7xx_pwrdm, + &coreaon_7xx_pwrdm, + &cpu0_7xx_pwrdm, + &cpu1_7xx_pwrdm, + &vpe_7xx_pwrdm, + &mpu_7xx_pwrdm, + &l3init_7xx_pwrdm, + &eve3_7xx_pwrdm, + &emu_7xx_pwrdm, + &dsp2_7xx_pwrdm, + &dsp1_7xx_pwrdm, + &cam_7xx_pwrdm, + &eve4_7xx_pwrdm, + &eve2_7xx_pwrdm, + &eve1_7xx_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_dra76x[] __initdata = { + &custefuse_aon_7xx_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_dra74x[] __initdata = { + &custefuse_7xx_pwrdm, + NULL +}; + +static struct powerdomain *powerdomains_dra72x[] __initdata = { + &custefuse_aon_7xx_pwrdm, + NULL +}; + +void __init dra7xx_powerdomains_init(void) +{ + pwrdm_register_platform_funcs(&omap4_pwrdm_operations); + pwrdm_register_pwrdms(powerdomains_dra7xx); + + if (soc_is_dra76x()) + pwrdm_register_pwrdms(powerdomains_dra76x); + else if (soc_is_dra74x()) + pwrdm_register_pwrdms(powerdomains_dra74x); + else if (soc_is_dra72x()) + pwrdm_register_pwrdms(powerdomains_dra72x); + + pwrdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h new file mode 100644 index 000000000..5e3544a63 --- /dev/null +++ b/arch/arm/mach-omap2/prcm-common.h @@ -0,0 +1,562 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ARCH_ASM_MACH_OMAP2_PRCM_COMMON_H +#define __ARCH_ASM_MACH_OMAP2_PRCM_COMMON_H + +/* + * OMAP2/3 PRCM base and module definitions + * + * Copyright (C) 2007-2009, 2011 Texas Instruments, Inc. + * Copyright (C) 2007-2009 Nokia Corporation + * + * Written by Paul Walmsley + */ + +/* Module offsets from both CM_BASE & PRM_BASE */ + +/* + * Offsets that are the same on 24xx and 34xx + * + * Technically, in terms of the TRM, OCP_MOD is 34xx only; PLL_MOD is + * CCR_MOD on 3430; and GFX_MOD only exists < 3430ES2. + */ +#define OCP_MOD 0x000 +#define MPU_MOD 0x100 +#define CORE_MOD 0x200 +#define GFX_MOD 0x300 +#define WKUP_MOD 0x400 +#define PLL_MOD 0x500 + + +/* Chip-specific module offsets */ +#define OMAP24XX_GR_MOD OCP_MOD +#define OMAP24XX_DSP_MOD 0x800 + +#define OMAP2430_MDM_MOD 0xc00 + +/* IVA2 module is < base on 3430 */ +#define OMAP3430_IVA2_MOD -0x800 +#define OMAP3430ES2_SGX_MOD GFX_MOD +#define OMAP3430_CCR_MOD PLL_MOD +#define OMAP3430_DSS_MOD 0x600 +#define OMAP3430_CAM_MOD 0x700 +#define OMAP3430_PER_MOD 0x800 +#define OMAP3430_EMU_MOD 0x900 +#define OMAP3430_GR_MOD 0xa00 +#define OMAP3430_NEON_MOD 0xb00 +#define OMAP3430ES2_USBHOST_MOD 0xc00 + +/* + * TI81XX PRM module offsets + */ +#define TI814X_PRM_DSP_MOD 0x0a00 +#define TI814X_PRM_HDVICP_MOD 0x0c00 +#define TI814X_PRM_ISP_MOD 0x0d00 +#define TI814X_PRM_HDVPSS_MOD 0x0e00 +#define TI814X_PRM_GFX_MOD 0x0f00 + +#define TI81XX_PRM_DEVICE_MOD 0x0000 +#define TI816X_PRM_ACTIVE_MOD 0x0a00 +#define TI81XX_PRM_DEFAULT_MOD 0x0b00 +#define TI816X_PRM_IVAHD0_MOD 0x0c00 +#define TI816X_PRM_IVAHD1_MOD 0x0d00 +#define TI816X_PRM_IVAHD2_MOD 0x0e00 +#define TI816X_PRM_SGX_MOD 0x0f00 +#define TI81XX_PRM_ALWON_MOD 0x1800 + +/* 24XX register bits shared between CM & PRM registers */ + +/* CM_FCLKEN1_CORE, CM_ICLKEN1_CORE, PM_WKEN1_CORE shared bits */ +#define OMAP2420_EN_MMC_SHIFT 26 +#define OMAP2420_EN_MMC_MASK (1 << 26) +#define OMAP24XX_EN_UART2_SHIFT 22 +#define OMAP24XX_EN_UART2_MASK (1 << 22) +#define OMAP24XX_EN_UART1_SHIFT 21 +#define OMAP24XX_EN_UART1_MASK (1 << 21) +#define OMAP24XX_EN_MCSPI2_SHIFT 18 +#define OMAP24XX_EN_MCSPI2_MASK (1 << 18) +#define OMAP24XX_EN_MCSPI1_SHIFT 17 +#define OMAP24XX_EN_MCSPI1_MASK (1 << 17) +#define OMAP24XX_EN_MCBSP2_SHIFT 16 +#define OMAP24XX_EN_MCBSP2_MASK (1 << 16) +#define OMAP24XX_EN_MCBSP1_SHIFT 15 +#define OMAP24XX_EN_MCBSP1_MASK (1 << 15) +#define OMAP24XX_EN_GPT12_SHIFT 14 +#define OMAP24XX_EN_GPT12_MASK (1 << 14) +#define OMAP24XX_EN_GPT11_SHIFT 13 +#define OMAP24XX_EN_GPT11_MASK (1 << 13) +#define OMAP24XX_EN_GPT10_SHIFT 12 +#define OMAP24XX_EN_GPT10_MASK (1 << 12) +#define OMAP24XX_EN_GPT9_SHIFT 11 +#define OMAP24XX_EN_GPT9_MASK (1 << 11) +#define OMAP24XX_EN_GPT8_SHIFT 10 +#define OMAP24XX_EN_GPT8_MASK (1 << 10) +#define OMAP24XX_EN_GPT7_SHIFT 9 +#define OMAP24XX_EN_GPT7_MASK (1 << 9) +#define OMAP24XX_EN_GPT6_SHIFT 8 +#define OMAP24XX_EN_GPT6_MASK (1 << 8) +#define OMAP24XX_EN_GPT5_SHIFT 7 +#define OMAP24XX_EN_GPT5_MASK (1 << 7) +#define OMAP24XX_EN_GPT4_SHIFT 6 +#define OMAP24XX_EN_GPT4_MASK (1 << 6) +#define OMAP24XX_EN_GPT3_SHIFT 5 +#define OMAP24XX_EN_GPT3_MASK (1 << 5) +#define OMAP24XX_EN_GPT2_SHIFT 4 +#define OMAP24XX_EN_GPT2_MASK (1 << 4) +#define OMAP2420_EN_VLYNQ_SHIFT 3 +#define OMAP2420_EN_VLYNQ_MASK (1 << 3) + +/* CM_FCLKEN2_CORE, CM_ICLKEN2_CORE, PM_WKEN2_CORE shared bits */ +#define OMAP2430_EN_GPIO5_SHIFT 10 +#define OMAP2430_EN_GPIO5_MASK (1 << 10) +#define OMAP2430_EN_MCSPI3_SHIFT 9 +#define OMAP2430_EN_MCSPI3_MASK (1 << 9) +#define OMAP2430_EN_MMCHS2_SHIFT 8 +#define OMAP2430_EN_MMCHS2_MASK (1 << 8) +#define OMAP2430_EN_MMCHS1_SHIFT 7 +#define OMAP2430_EN_MMCHS1_MASK (1 << 7) +#define OMAP24XX_EN_UART3_SHIFT 2 +#define OMAP24XX_EN_UART3_MASK (1 << 2) +#define OMAP24XX_EN_USB_SHIFT 0 +#define OMAP24XX_EN_USB_MASK (1 << 0) + +/* CM_ICLKEN2_CORE, PM_WKEN2_CORE shared bits */ +#define OMAP2430_EN_MDM_INTC_SHIFT 11 +#define OMAP2430_EN_MDM_INTC_MASK (1 << 11) +#define OMAP2430_EN_USBHS_SHIFT 6 +#define OMAP2430_EN_USBHS_MASK (1 << 6) +#define OMAP24XX_EN_GPMC_SHIFT 1 +#define OMAP24XX_EN_GPMC_MASK (1 << 1) + +/* CM_IDLEST1_CORE, PM_WKST1_CORE shared bits */ +#define OMAP2420_ST_MMC_SHIFT 26 +#define OMAP2420_ST_MMC_MASK (1 << 26) +#define OMAP24XX_ST_UART2_SHIFT 22 +#define OMAP24XX_ST_UART2_MASK (1 << 22) +#define OMAP24XX_ST_UART1_SHIFT 21 +#define OMAP24XX_ST_UART1_MASK (1 << 21) +#define OMAP24XX_ST_MCSPI2_SHIFT 18 +#define OMAP24XX_ST_MCSPI2_MASK (1 << 18) +#define OMAP24XX_ST_MCSPI1_SHIFT 17 +#define OMAP24XX_ST_MCSPI1_MASK (1 << 17) +#define OMAP24XX_ST_MCBSP2_SHIFT 16 +#define OMAP24XX_ST_MCBSP2_MASK (1 << 16) +#define OMAP24XX_ST_MCBSP1_SHIFT 15 +#define OMAP24XX_ST_MCBSP1_MASK (1 << 15) +#define OMAP24XX_ST_GPT12_SHIFT 14 +#define OMAP24XX_ST_GPT12_MASK (1 << 14) +#define OMAP24XX_ST_GPT11_SHIFT 13 +#define OMAP24XX_ST_GPT11_MASK (1 << 13) +#define OMAP24XX_ST_GPT10_SHIFT 12 +#define OMAP24XX_ST_GPT10_MASK (1 << 12) +#define OMAP24XX_ST_GPT9_SHIFT 11 +#define OMAP24XX_ST_GPT9_MASK (1 << 11) +#define OMAP24XX_ST_GPT8_SHIFT 10 +#define OMAP24XX_ST_GPT8_MASK (1 << 10) +#define OMAP24XX_ST_GPT7_SHIFT 9 +#define OMAP24XX_ST_GPT7_MASK (1 << 9) +#define OMAP24XX_ST_GPT6_SHIFT 8 +#define OMAP24XX_ST_GPT6_MASK (1 << 8) +#define OMAP24XX_ST_GPT5_SHIFT 7 +#define OMAP24XX_ST_GPT5_MASK (1 << 7) +#define OMAP24XX_ST_GPT4_SHIFT 6 +#define OMAP24XX_ST_GPT4_MASK (1 << 6) +#define OMAP24XX_ST_GPT3_SHIFT 5 +#define OMAP24XX_ST_GPT3_MASK (1 << 5) +#define OMAP24XX_ST_GPT2_SHIFT 4 +#define OMAP24XX_ST_GPT2_MASK (1 << 4) +#define OMAP2420_ST_VLYNQ_SHIFT 3 +#define OMAP2420_ST_VLYNQ_MASK (1 << 3) + +/* CM_IDLEST2_CORE, PM_WKST2_CORE shared bits */ +#define OMAP2430_ST_MDM_INTC_SHIFT 11 +#define OMAP2430_ST_MDM_INTC_MASK (1 << 11) +#define OMAP2430_ST_GPIO5_SHIFT 10 +#define OMAP2430_ST_GPIO5_MASK (1 << 10) +#define OMAP2430_ST_MCSPI3_SHIFT 9 +#define OMAP2430_ST_MCSPI3_MASK (1 << 9) +#define OMAP2430_ST_MMCHS2_SHIFT 8 +#define OMAP2430_ST_MMCHS2_MASK (1 << 8) +#define OMAP2430_ST_MMCHS1_SHIFT 7 +#define OMAP2430_ST_MMCHS1_MASK (1 << 7) +#define OMAP2430_ST_USBHS_SHIFT 6 +#define OMAP2430_ST_USBHS_MASK (1 << 6) +#define OMAP24XX_ST_UART3_SHIFT 2 +#define OMAP24XX_ST_UART3_MASK (1 << 2) +#define OMAP24XX_ST_USB_SHIFT 0 +#define OMAP24XX_ST_USB_MASK (1 << 0) + +/* CM_FCLKEN_WKUP, CM_ICLKEN_WKUP, PM_WKEN_WKUP shared bits */ +#define OMAP24XX_EN_GPIOS_SHIFT 2 +#define OMAP24XX_EN_GPIOS_MASK (1 << 2) +#define OMAP24XX_EN_GPT1_SHIFT 0 +#define OMAP24XX_EN_GPT1_MASK (1 << 0) + +/* PM_WKST_WKUP, CM_IDLEST_WKUP shared bits */ +#define OMAP24XX_ST_GPIOS_SHIFT 2 +#define OMAP24XX_ST_GPIOS_MASK (1 << 2) +#define OMAP24XX_ST_32KSYNC_SHIFT 1 +#define OMAP24XX_ST_32KSYNC_MASK (1 << 1) +#define OMAP24XX_ST_GPT1_SHIFT 0 +#define OMAP24XX_ST_GPT1_MASK (1 << 0) + +/* CM_IDLEST_MDM and PM_WKST_MDM shared bits */ +#define OMAP2430_ST_MDM_SHIFT 0 +#define OMAP2430_ST_MDM_MASK (1 << 0) + + +/* 3430 register bits shared between CM & PRM registers */ + +/* CM_REVISION, PRM_REVISION shared bits */ +#define OMAP3430_REV_SHIFT 0 +#define OMAP3430_REV_MASK (0xff << 0) + +/* CM_SYSCONFIG, PRM_SYSCONFIG shared bits */ +#define OMAP3430_AUTOIDLE_MASK (1 << 0) + +/* CM_FCLKEN1_CORE, CM_ICLKEN1_CORE, PM_WKEN1_CORE shared bits */ +#define OMAP3430_EN_MMC3_MASK (1 << 30) +#define OMAP3430_EN_MMC3_SHIFT 30 +#define OMAP3430_EN_MMC2_MASK (1 << 25) +#define OMAP3430_EN_MMC2_SHIFT 25 +#define OMAP3430_EN_MMC1_MASK (1 << 24) +#define OMAP3430_EN_MMC1_SHIFT 24 +#define AM35XX_EN_UART4_MASK (1 << 23) +#define AM35XX_EN_UART4_SHIFT 23 +#define OMAP3430_EN_MCSPI4_MASK (1 << 21) +#define OMAP3430_EN_MCSPI4_SHIFT 21 +#define OMAP3430_EN_MCSPI3_MASK (1 << 20) +#define OMAP3430_EN_MCSPI3_SHIFT 20 +#define OMAP3430_EN_MCSPI2_MASK (1 << 19) +#define OMAP3430_EN_MCSPI2_SHIFT 19 +#define OMAP3430_EN_MCSPI1_MASK (1 << 18) +#define OMAP3430_EN_MCSPI1_SHIFT 18 +#define OMAP3430_EN_I2C3_MASK (1 << 17) +#define OMAP3430_EN_I2C3_SHIFT 17 +#define OMAP3430_EN_I2C2_MASK (1 << 16) +#define OMAP3430_EN_I2C2_SHIFT 16 +#define OMAP3430_EN_I2C1_MASK (1 << 15) +#define OMAP3430_EN_I2C1_SHIFT 15 +#define OMAP3430_EN_UART2_MASK (1 << 14) +#define OMAP3430_EN_UART2_SHIFT 14 +#define OMAP3430_EN_UART1_MASK (1 << 13) +#define OMAP3430_EN_UART1_SHIFT 13 +#define OMAP3430_EN_GPT11_MASK (1 << 12) +#define OMAP3430_EN_GPT11_SHIFT 12 +#define OMAP3430_EN_GPT10_MASK (1 << 11) +#define OMAP3430_EN_GPT10_SHIFT 11 +#define OMAP3430_EN_MCBSP5_MASK (1 << 10) +#define OMAP3430_EN_MCBSP5_SHIFT 10 +#define OMAP3430_EN_MCBSP1_MASK (1 << 9) +#define OMAP3430_EN_MCBSP1_SHIFT 9 +#define OMAP3430_EN_FSHOSTUSB_MASK (1 << 5) +#define OMAP3430_EN_FSHOSTUSB_SHIFT 5 +#define OMAP3430_EN_D2D_MASK (1 << 3) +#define OMAP3430_EN_D2D_SHIFT 3 + +/* CM_ICLKEN1_CORE, PM_WKEN1_CORE shared bits */ +#define OMAP3430_EN_HSOTGUSB_MASK (1 << 4) +#define OMAP3430_EN_HSOTGUSB_SHIFT 4 + +/* PM_WKST1_CORE, CM_IDLEST1_CORE shared bits */ +#define OMAP3430_ST_MMC3_SHIFT 30 +#define OMAP3430_ST_MMC3_MASK (1 << 30) +#define OMAP3430_ST_MMC2_SHIFT 25 +#define OMAP3430_ST_MMC2_MASK (1 << 25) +#define OMAP3430_ST_MMC1_SHIFT 24 +#define OMAP3430_ST_MMC1_MASK (1 << 24) +#define OMAP3430_ST_MCSPI4_SHIFT 21 +#define OMAP3430_ST_MCSPI4_MASK (1 << 21) +#define OMAP3430_ST_MCSPI3_SHIFT 20 +#define OMAP3430_ST_MCSPI3_MASK (1 << 20) +#define OMAP3430_ST_MCSPI2_SHIFT 19 +#define OMAP3430_ST_MCSPI2_MASK (1 << 19) +#define OMAP3430_ST_MCSPI1_SHIFT 18 +#define OMAP3430_ST_MCSPI1_MASK (1 << 18) +#define OMAP3430_ST_I2C3_SHIFT 17 +#define OMAP3430_ST_I2C3_MASK (1 << 17) +#define OMAP3430_ST_I2C2_SHIFT 16 +#define OMAP3430_ST_I2C2_MASK (1 << 16) +#define OMAP3430_ST_I2C1_SHIFT 15 +#define OMAP3430_ST_I2C1_MASK (1 << 15) +#define OMAP3430_ST_UART2_SHIFT 14 +#define OMAP3430_ST_UART2_MASK (1 << 14) +#define OMAP3430_ST_UART1_SHIFT 13 +#define OMAP3430_ST_UART1_MASK (1 << 13) +#define OMAP3430_ST_GPT11_SHIFT 12 +#define OMAP3430_ST_GPT11_MASK (1 << 12) +#define OMAP3430_ST_GPT10_SHIFT 11 +#define OMAP3430_ST_GPT10_MASK (1 << 11) +#define OMAP3430_ST_MCBSP5_SHIFT 10 +#define OMAP3430_ST_MCBSP5_MASK (1 << 10) +#define OMAP3430_ST_MCBSP1_SHIFT 9 +#define OMAP3430_ST_MCBSP1_MASK (1 << 9) +#define OMAP3430ES1_ST_FSHOSTUSB_SHIFT 5 +#define OMAP3430ES1_ST_FSHOSTUSB_MASK (1 << 5) +#define OMAP3430ES1_ST_HSOTGUSB_SHIFT 4 +#define OMAP3430ES1_ST_HSOTGUSB_MASK (1 << 4) +#define OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT 5 +#define OMAP3430ES2_ST_HSOTGUSB_IDLE_MASK (1 << 5) +#define OMAP3430ES2_ST_HSOTGUSB_STDBY_SHIFT 4 +#define OMAP3430ES2_ST_HSOTGUSB_STDBY_MASK (1 << 4) +#define OMAP3430_ST_D2D_SHIFT 3 +#define OMAP3430_ST_D2D_MASK (1 << 3) + +/* CM_FCLKEN_WKUP, CM_ICLKEN_WKUP, PM_WKEN_WKUP shared bits */ +#define OMAP3430_EN_GPIO1_MASK (1 << 3) +#define OMAP3430_EN_GPIO1_SHIFT 3 +#define OMAP3430_EN_GPT12_MASK (1 << 1) +#define OMAP3430_EN_GPT12_SHIFT 1 +#define OMAP3430_EN_GPT1_MASK (1 << 0) +#define OMAP3430_EN_GPT1_SHIFT 0 + +/* CM_FCLKEN_WKUP, PM_WKEN_WKUP shared bits */ +#define OMAP3430_EN_SR2_MASK (1 << 7) +#define OMAP3430_EN_SR2_SHIFT 7 +#define OMAP3430_EN_SR1_MASK (1 << 6) +#define OMAP3430_EN_SR1_SHIFT 6 + +/* CM_ICLKEN_WKUP, PM_WKEN_WKUP shared bits */ +#define OMAP3430_EN_GPT12_MASK (1 << 1) +#define OMAP3430_EN_GPT12_SHIFT 1 + +/* CM_IDLEST_WKUP, PM_WKST_WKUP shared bits */ +#define OMAP3430_ST_SR2_SHIFT 7 +#define OMAP3430_ST_SR2_MASK (1 << 7) +#define OMAP3430_ST_SR1_SHIFT 6 +#define OMAP3430_ST_SR1_MASK (1 << 6) +#define OMAP3430_ST_GPIO1_SHIFT 3 +#define OMAP3430_ST_GPIO1_MASK (1 << 3) +#define OMAP3430_ST_32KSYNC_SHIFT 2 +#define OMAP3430_ST_32KSYNC_MASK (1 << 2) +#define OMAP3430_ST_GPT12_SHIFT 1 +#define OMAP3430_ST_GPT12_MASK (1 << 1) +#define OMAP3430_ST_GPT1_SHIFT 0 +#define OMAP3430_ST_GPT1_MASK (1 << 0) + +/* + * CM_SLEEPDEP_GFX, CM_SLEEPDEP_DSS, CM_SLEEPDEP_CAM, + * CM_SLEEPDEP_PER, PM_WKDEP_IVA2, PM_WKDEP_GFX, + * PM_WKDEP_DSS, PM_WKDEP_CAM, PM_WKDEP_PER, PM_WKDEP_NEON shared bits + */ +#define OMAP3430_EN_MPU_MASK (1 << 1) +#define OMAP3430_EN_MPU_SHIFT 1 + +/* CM_FCLKEN_PER, CM_ICLKEN_PER, PM_WKEN_PER shared bits */ + +#define OMAP3630_EN_UART4_MASK (1 << 18) +#define OMAP3630_EN_UART4_SHIFT 18 +#define OMAP3430_EN_GPIO6_MASK (1 << 17) +#define OMAP3430_EN_GPIO6_SHIFT 17 +#define OMAP3430_EN_GPIO5_MASK (1 << 16) +#define OMAP3430_EN_GPIO5_SHIFT 16 +#define OMAP3430_EN_GPIO4_MASK (1 << 15) +#define OMAP3430_EN_GPIO4_SHIFT 15 +#define OMAP3430_EN_GPIO3_MASK (1 << 14) +#define OMAP3430_EN_GPIO3_SHIFT 14 +#define OMAP3430_EN_GPIO2_MASK (1 << 13) +#define OMAP3430_EN_GPIO2_SHIFT 13 +#define OMAP3430_EN_UART3_MASK (1 << 11) +#define OMAP3430_EN_UART3_SHIFT 11 +#define OMAP3430_EN_GPT9_MASK (1 << 10) +#define OMAP3430_EN_GPT9_SHIFT 10 +#define OMAP3430_EN_GPT8_MASK (1 << 9) +#define OMAP3430_EN_GPT8_SHIFT 9 +#define OMAP3430_EN_GPT7_MASK (1 << 8) +#define OMAP3430_EN_GPT7_SHIFT 8 +#define OMAP3430_EN_GPT6_MASK (1 << 7) +#define OMAP3430_EN_GPT6_SHIFT 7 +#define OMAP3430_EN_GPT5_MASK (1 << 6) +#define OMAP3430_EN_GPT5_SHIFT 6 +#define OMAP3430_EN_GPT4_MASK (1 << 5) +#define OMAP3430_EN_GPT4_SHIFT 5 +#define OMAP3430_EN_GPT3_MASK (1 << 4) +#define OMAP3430_EN_GPT3_SHIFT 4 +#define OMAP3430_EN_GPT2_MASK (1 << 3) +#define OMAP3430_EN_GPT2_SHIFT 3 + +/* CM_FCLKEN_PER, CM_ICLKEN_PER, PM_WKEN_PER, PM_WKST_PER shared bits */ +/* XXX Possible TI documentation bug: should the PM_WKST_PER EN_* bits + * be ST_* bits instead? */ +#define OMAP3430_EN_MCBSP4_MASK (1 << 2) +#define OMAP3430_EN_MCBSP4_SHIFT 2 +#define OMAP3430_EN_MCBSP3_MASK (1 << 1) +#define OMAP3430_EN_MCBSP3_SHIFT 1 +#define OMAP3430_EN_MCBSP2_MASK (1 << 0) +#define OMAP3430_EN_MCBSP2_SHIFT 0 + +/* CM_IDLEST_PER, PM_WKST_PER shared bits */ +#define OMAP3630_ST_UART4_SHIFT 18 +#define OMAP3630_ST_UART4_MASK (1 << 18) +#define OMAP3430_ST_GPIO6_SHIFT 17 +#define OMAP3430_ST_GPIO6_MASK (1 << 17) +#define OMAP3430_ST_GPIO5_SHIFT 16 +#define OMAP3430_ST_GPIO5_MASK (1 << 16) +#define OMAP3430_ST_GPIO4_SHIFT 15 +#define OMAP3430_ST_GPIO4_MASK (1 << 15) +#define OMAP3430_ST_GPIO3_SHIFT 14 +#define OMAP3430_ST_GPIO3_MASK (1 << 14) +#define OMAP3430_ST_GPIO2_SHIFT 13 +#define OMAP3430_ST_GPIO2_MASK (1 << 13) +#define OMAP3430_ST_UART3_SHIFT 11 +#define OMAP3430_ST_UART3_MASK (1 << 11) +#define OMAP3430_ST_GPT9_SHIFT 10 +#define OMAP3430_ST_GPT9_MASK (1 << 10) +#define OMAP3430_ST_GPT8_SHIFT 9 +#define OMAP3430_ST_GPT8_MASK (1 << 9) +#define OMAP3430_ST_GPT7_SHIFT 8 +#define OMAP3430_ST_GPT7_MASK (1 << 8) +#define OMAP3430_ST_GPT6_SHIFT 7 +#define OMAP3430_ST_GPT6_MASK (1 << 7) +#define OMAP3430_ST_GPT5_SHIFT 6 +#define OMAP3430_ST_GPT5_MASK (1 << 6) +#define OMAP3430_ST_GPT4_SHIFT 5 +#define OMAP3430_ST_GPT4_MASK (1 << 5) +#define OMAP3430_ST_GPT3_SHIFT 4 +#define OMAP3430_ST_GPT3_MASK (1 << 4) +#define OMAP3430_ST_GPT2_SHIFT 3 +#define OMAP3430_ST_GPT2_MASK (1 << 3) + +/* CM_SLEEPDEP_PER, PM_WKDEP_IVA2, PM_WKDEP_MPU, PM_WKDEP_PER shared bits */ +#define OMAP3430_EN_CORE_SHIFT 0 +#define OMAP3430_EN_CORE_MASK (1 << 0) + + + +/* + * Maximum time(us) it takes to output the signal WUCLKOUT of the last + * pad of the I/O ring after asserting WUCLKIN high. Tero measured + * the actual time at 7 to 8 microseconds on OMAP3 and 2 to 4 + * microseconds on OMAP4, so this timeout may be too high. + */ +#define MAX_IOPAD_LATCH_TIME 100 +# ifndef __ASSEMBLER__ + +#include <linux/delay.h> + +/** + * omap_test_timeout - busy-loop, testing a condition + * @cond: condition to test until it evaluates to true + * @timeout: maximum number of microseconds in the timeout + * @index: loop index (integer) + * + * Loop waiting for @cond to become true or until at least @timeout + * microseconds have passed. To use, define some integer @index in the + * calling code. After running, if @index == @timeout, then the loop has + * timed out. + */ +#define omap_test_timeout(cond, timeout, index) \ +({ \ + for (index = 0; index < timeout; index++) { \ + if (cond) \ + break; \ + udelay(1); \ + } \ +}) + +/** + * struct omap_prcm_irq - describes a PRCM interrupt bit + * @name: a short name describing the interrupt type, e.g. "wkup" or "io" + * @offset: the bit shift of the interrupt inside the IRQ{ENABLE,STATUS} regs + * @priority: should this interrupt be handled before @priority=false IRQs? + * + * Describes interrupt bits inside the PRM_IRQ{ENABLE,STATUS}_MPU* registers. + * On systems with multiple PRM MPU IRQ registers, the bitfields read from + * the registers are concatenated, so @offset could be > 31 on these systems - + * see omap_prm_irq_handler() for more details. I/O ring interrupts should + * have @priority set to true. + */ +struct omap_prcm_irq { + const char *name; + unsigned int offset; + bool priority; +}; + +/** + * struct omap_prcm_irq_setup - PRCM interrupt controller details + * @ack: PRM register offset for the first PRM_IRQSTATUS_MPU register + * @mask: PRM register offset for the first PRM_IRQENABLE_MPU register + * @pm_ctrl: PRM register offset for the PRM_IO_PMCTRL register + * @nr_regs: number of PRM_IRQ{STATUS,ENABLE}_MPU* registers + * @nr_irqs: number of entries in the @irqs array + * @irqs: ptr to an array of PRCM interrupt bits (see @nr_irqs) + * @irq: MPU IRQ asserted when a PRCM interrupt arrives + * @read_pending_irqs: fn ptr to determine if any PRCM IRQs are pending + * @ocp_barrier: fn ptr to force buffered PRM writes to complete + * @save_and_clear_irqen: fn ptr to save and clear IRQENABLE regs + * @restore_irqen: fn ptr to save and clear IRQENABLE regs + * @reconfigure_io_chain: fn ptr to reconfigure IO chain + * @saved_mask: IRQENABLE regs are saved here during suspend + * @priority_mask: 1 bit per IRQ, set to 1 if omap_prcm_irq.priority = true + * @base_irq: base dynamic IRQ number, returned from irq_alloc_descs() in init + * @suspended: set to true after Linux suspend code has called our ->prepare() + * @suspend_save_flag: set to true after IRQ masks have been saved and disabled + * + * @saved_mask, @priority_mask, @base_irq, @suspended, and + * @suspend_save_flag are populated dynamically, and are not to be + * specified in static initializers. + */ +struct omap_prcm_irq_setup { + u16 ack; + u16 mask; + u16 pm_ctrl; + u8 nr_regs; + u8 nr_irqs; + const struct omap_prcm_irq *irqs; + int irq; + void (*read_pending_irqs)(unsigned long *events); + void (*ocp_barrier)(void); + void (*save_and_clear_irqen)(u32 *saved_mask); + void (*restore_irqen)(u32 *saved_mask); + void (*reconfigure_io_chain)(void); + u32 *saved_mask; + u32 *priority_mask; + int base_irq; + bool suspended; + bool suspend_save_flag; +}; + +/* OMAP_PRCM_IRQ: convenience macro for creating struct omap_prcm_irq records */ +#define OMAP_PRCM_IRQ(_name, _offset, _priority) { \ + .name = _name, \ + .offset = _offset, \ + .priority = _priority \ + } + +struct omap_domain_base { + u32 pa; + void __iomem *va; + s16 offset; +}; + +/** + * struct omap_prcm_init_data - PRCM driver init data + * @index: clock memory mapping index to be used + * @mem: IO mem pointer for this module + * @phys: IO mem physical base address for this module + * @offset: module base address offset from the IO base + * @flags: PRCM module init flags + * @device_inst_offset: device instance offset within the module address space + * @init: low level PRCM init function for this module + * @np: device node for this PRCM module + */ +struct omap_prcm_init_data { + int index; + void __iomem *mem; + u32 phys; + s16 offset; + u16 flags; + s32 device_inst_offset; + int (*init)(const struct omap_prcm_init_data *data); + struct device_node *np; +}; + +extern int omap_prcm_register_chain_handler( + struct omap_prcm_irq_setup *irq_setup); +extern int omap_prcm_event_to_irq(const char *event); +extern void omap_prcm_irq_prepare(void); +extern void omap_prcm_irq_complete(void); + +# endif + +#endif + diff --git a/arch/arm/mach-omap2/prcm43xx.h b/arch/arm/mach-omap2/prcm43xx.h new file mode 100644 index 000000000..38ed69b15 --- /dev/null +++ b/arch/arm/mach-omap2/prcm43xx.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * AM43x PRCM defines + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRCM_43XX_H +#define __ARCH_ARM_MACH_OMAP2_PRCM_43XX_H + +#define AM43XX_PRM_PARTITION 1 +#define AM43XX_CM_PARTITION 1 + +/* PRM instances */ +#define AM43XX_PRM_OCP_SOCKET_INST 0x0000 +#define AM43XX_PRM_MPU_INST 0x0300 +#define AM43XX_PRM_GFX_INST 0x0400 +#define AM43XX_PRM_RTC_INST 0x0500 +#define AM43XX_PRM_TAMPER_INST 0x0600 +#define AM43XX_PRM_CEFUSE_INST 0x0700 +#define AM43XX_PRM_PER_INST 0x0800 +#define AM43XX_PRM_WKUP_INST 0x2000 +#define AM43XX_PRM_DEVICE_INST 0x4000 + +/* PRM_IRQ offsets */ +#define AM43XX_PRM_IRQSTATUS_MPU_OFFSET 0x0004 +#define AM43XX_PRM_IRQENABLE_MPU_OFFSET 0x0008 + +/* Other PRM offsets */ +#define AM43XX_PRM_IO_PMCTRL_OFFSET 0x0024 + +/* CM instances */ +#define AM43XX_CM_WKUP_INST 0x2800 +#define AM43XX_CM_MPU_INST 0x8300 +#define AM43XX_CM_GFX_INST 0x8400 +#define AM43XX_CM_RTC_INST 0x8500 +#define AM43XX_CM_TAMPER_INST 0x8600 +#define AM43XX_CM_CEFUSE_INST 0x8700 +#define AM43XX_CM_PER_INST 0x8800 + +/* CD offsets */ +#define AM43XX_CM_WKUP_L3_AON_CDOFFS 0x0000 +#define AM43XX_CM_WKUP_L3S_TSC_CDOFFS 0x0100 +#define AM43XX_CM_WKUP_L4_WKUP_AON_CDOFFS 0x0200 +#define AM43XX_CM_WKUP_WKUP_CDOFFS 0x0300 +#define AM43XX_CM_MPU_MPU_CDOFFS 0x0000 +#define AM43XX_CM_GFX_GFX_L3_CDOFFS 0x0000 +#define AM43XX_CM_RTC_RTC_CDOFFS 0x0000 +#define AM43XX_CM_TAMPER_TAMPER_CDOFFS 0x0000 +#define AM43XX_CM_CEFUSE_CEFUSE_CDOFFS 0x0000 +#define AM43XX_CM_PER_L3_CDOFFS 0x0000 +#define AM43XX_CM_PER_L3S_CDOFFS 0x0200 +#define AM43XX_CM_PER_ICSS_CDOFFS 0x0300 +#define AM43XX_CM_PER_L4LS_CDOFFS 0x0400 +#define AM43XX_CM_PER_EMIF_CDOFFS 0x0700 +#define AM43XX_CM_PER_LCDC_CDOFFS 0x0800 +#define AM43XX_CM_PER_DSS_CDOFFS 0x0a00 +#define AM43XX_CM_PER_CPSW_CDOFFS 0x0b00 +#define AM43XX_CM_PER_OCPWP_L3_CDOFFS 0x0c00 + +/* CLK CTRL offsets */ +#define AM43XX_CM_MPU_MPU_CLKCTRL_OFFSET 0x0020 +#define AM43XX_CM_PER_EMIF_CLKCTRL_OFFSET 0x0720 + +#endif diff --git a/arch/arm/mach-omap2/prcm44xx.h b/arch/arm/mach-omap2/prcm44xx.h new file mode 100644 index 000000000..b1d4c89a4 --- /dev/null +++ b/arch/arm/mach-omap2/prcm44xx.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP4 PRCM definitions + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * + * Paul Walmsley + * + * This file contains macros and functions that are common to all of + * the PRM/CM/PRCM blocks on the OMAP4 devices: PRM, CM1, CM2, + * PRCM_MPU, SCRM + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRCM44XX_H +#define __ARCH_ARM_MACH_OMAP2_PRCM44XX_H + +/* + * OMAP4 PRCM partition IDs + * + * The numbers and order are arbitrary, but 0 is reserved for the + * 'invalid' partition in case someone forgets to add a + * .prcm_partition field. + */ +#define OMAP4430_INVALID_PRCM_PARTITION 0 +#define OMAP4430_PRM_PARTITION 1 +#define OMAP4430_CM1_PARTITION 2 +#define OMAP4430_CM2_PARTITION 3 +#define OMAP4430_SCRM_PARTITION 4 +#define OMAP4430_PRCM_MPU_PARTITION 5 + +#define OMAP54XX_PRM_PARTITION 1 +#define OMAP54XX_CM_CORE_AON_PARTITION 2 +#define OMAP54XX_CM_CORE_PARTITION 3 +#define OMAP54XX_SCRM_PARTITION 4 +#define OMAP54XX_PRCM_MPU_PARTITION 5 + +#define DRA7XX_PRM_PARTITION 1 +#define DRA7XX_CM_CORE_AON_PARTITION 2 +#define DRA7XX_CM_CORE_PARTITION 3 +#define DRA7XX_MPU_PRCM_PARTITION 5 + +/* + * OMAP4_MAX_PRCM_PARTITIONS: set to the highest value of the PRCM partition + * IDs, plus one + */ +#define OMAP4_MAX_PRCM_PARTITIONS 6 + + +#endif diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.c b/arch/arm/mach-omap2/prcm_mpu44xx.c new file mode 100644 index 000000000..7236c5038 --- /dev/null +++ b/arch/arm/mach-omap2/prcm_mpu44xx.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 PRCM_MPU module functions + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "iomap.h" +#include "common.h" +#include "prcm_mpu44xx.h" +#include "cm-regbits-44xx.h" + +/* + * prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP + * block registers + */ +struct omap_domain_base prcm_mpu_base; + +/* PRCM_MPU low-level functions */ + +u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg) +{ + return readl_relaxed(OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); +} + +void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg) +{ + writel_relaxed(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); +} + +/** + * omap2_set_globals_prcm_mpu - set the MPU PRCM base address (for early use) + * @prcm_mpu: PRCM_MPU base virtual address + * + * XXX Will be replaced when the PRM/CM drivers are completed. + */ +void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu) +{ + prcm_mpu_base.va = prcm_mpu; +} diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.h b/arch/arm/mach-omap2/prcm_mpu44xx.h new file mode 100644 index 000000000..ff3484b04 --- /dev/null +++ b/arch/arm/mach-omap2/prcm_mpu44xx.h @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx PRCM MPU instance offset macros + * + * Copyright (C) 2010, 2012 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + * + * XXX This file needs to be updated to align on one of "OMAP4", "OMAP44XX", + * or "OMAP4430". + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRCM_MPU44XX_H +#define __ARCH_ARM_MACH_OMAP2_PRCM_MPU44XX_H + +#include "prcm_mpu_44xx_54xx.h" + +#define OMAP4430_PRCM_MPU_BASE 0x48243000 + +#define OMAP44XX_PRCM_MPU_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE + (inst) + (reg)) + +/* PRCM_MPU instances */ +#define OMAP4430_PRCM_MPU_OCP_SOCKET_PRCM_INST 0x0000 +#define OMAP4430_PRCM_MPU_DEVICE_PRM_INST 0x0200 +#define OMAP4430_PRCM_MPU_CPU0_INST 0x0400 +#define OMAP4430_PRCM_MPU_CPU1_INST 0x0800 + +/* PRCM_MPU clockdomain register offsets (from instance start) */ +#define OMAP4430_PRCM_MPU_CPU0_CPU0_CDOFFS 0x0018 +#define OMAP4430_PRCM_MPU_CPU1_CPU1_CDOFFS 0x0018 + + +/* + * PRCM_MPU + * + * The PRCM_MPU is a local PRCM inside the MPU subsystem. For the PRCM (global) + * point of view the PRCM_MPU is a single entity. It shares the same + * programming model as the global PRCM and thus can be assimilate as two new + * MOD inside the PRCM + */ + +/* PRCM_MPU.OCP_SOCKET_PRCM register offsets */ +#define OMAP4_REVISION_PRCM_OFFSET 0x0000 +#define OMAP4430_REVISION_PRCM OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_OCP_SOCKET_PRCM_INST, 0x0000) + +/* PRCM_MPU.DEVICE_PRM register offsets */ +#define OMAP4_PRCM_MPU_PRM_RSTST_OFFSET 0x0000 +#define OMAP4430_PRCM_MPU_PRM_RSTST OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_DEVICE_PRM_INST, 0x0000) +#define OMAP4_PRCM_MPU_PRM_PSCON_COUNT_OFFSET 0x0004 +#define OMAP4430_PRCM_MPU_PRM_PSCON_COUNT OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_DEVICE_PRM_INST, 0x0004) + +/* PRCM_MPU.CPU0 register offsets */ +#define OMAP4_PM_CPU0_PWRSTCTRL_OFFSET 0x0000 +#define OMAP4430_PM_CPU0_PWRSTCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU0_INST, 0x0000) +#define OMAP4_PM_CPU0_PWRSTST_OFFSET 0x0004 +#define OMAP4430_PM_CPU0_PWRSTST OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU0_INST, 0x0004) +#define OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET 0x0008 +#define OMAP4430_RM_CPU0_CPU0_CONTEXT OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU0_INST, 0x0008) +#define OMAP4_RM_CPU0_CPU0_RSTCTRL_OFFSET 0x000c +#define OMAP4430_RM_CPU0_CPU0_RSTCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU0_INST, 0x000c) +#define OMAP4_RM_CPU0_CPU0_RSTST_OFFSET 0x0010 +#define OMAP4430_RM_CPU0_CPU0_RSTST OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU0_INST, 0x0010) +#define OMAP4_CM_CPU0_CPU0_CLKCTRL_OFFSET 0x0014 +#define OMAP4430_CM_CPU0_CPU0_CLKCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU0_INST, 0x0014) +#define OMAP4_CM_CPU0_CLKSTCTRL_OFFSET 0x0018 +#define OMAP4430_CM_CPU0_CLKSTCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU0_INST, 0x0018) + +/* PRCM_MPU.CPU1 register offsets */ +#define OMAP4_PM_CPU1_PWRSTCTRL_OFFSET 0x0000 +#define OMAP4430_PM_CPU1_PWRSTCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x0000) +#define OMAP4_PM_CPU1_PWRSTST_OFFSET 0x0004 +#define OMAP4430_PM_CPU1_PWRSTST OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x0004) +#define OMAP4_RM_CPU1_CPU1_CONTEXT_OFFSET 0x0008 +#define OMAP4430_RM_CPU1_CPU1_CONTEXT OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x0008) +#define OMAP4_RM_CPU1_CPU1_RSTCTRL_OFFSET 0x000c +#define OMAP4430_RM_CPU1_CPU1_RSTCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x000c) +#define OMAP4_RM_CPU1_CPU1_RSTST_OFFSET 0x0010 +#define OMAP4430_RM_CPU1_CPU1_RSTST OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x0010) +#define OMAP4_CM_CPU1_CPU1_CLKCTRL_OFFSET 0x0014 +#define OMAP4430_CM_CPU1_CPU1_CLKCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x0014) +#define OMAP4_CM_CPU1_CLKSTCTRL_OFFSET 0x0018 +#define OMAP4430_CM_CPU1_CLKSTCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x0018) + +#endif diff --git a/arch/arm/mach-omap2/prcm_mpu54xx.h b/arch/arm/mach-omap2/prcm_mpu54xx.h new file mode 100644 index 000000000..bdbfa070b --- /dev/null +++ b/arch/arm/mach-omap2/prcm_mpu54xx.h @@ -0,0 +1,84 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP54xx PRCM MPU instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRCM_MPU54XX_H +#define __ARCH_ARM_MACH_OMAP2_PRCM_MPU54XX_H + +#include "prcm_mpu_44xx_54xx.h" +#include "common.h" + +#define OMAP54XX_PRCM_MPU_BASE 0x48243000 + +#define OMAP54XX_PRCM_MPU_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE + (inst) + (reg)) + +/* PRCM_MPU instances */ +#define OMAP54XX_PRCM_MPU_OCP_SOCKET_INST 0x0000 +#define OMAP54XX_PRCM_MPU_DEVICE_INST 0x0200 +#define OMAP54XX_PRCM_MPU_PRM_C0_INST 0x0400 +#define OMAP54XX_PRCM_MPU_CM_C0_INST 0x0600 +#define OMAP54XX_PRCM_MPU_PRM_C1_INST 0x0800 +#define OMAP54XX_PRCM_MPU_CM_C1_INST 0x0a00 + +/* PRCM_MPU clockdomain register offsets (from instance start) */ +#define OMAP54XX_PRCM_MPU_CM_C0_CPU0_CDOFFS 0x0000 +#define OMAP54XX_PRCM_MPU_CM_C1_CPU1_CDOFFS 0x0000 + + +/* + * PRCM_MPU + * + * The PRCM_MPU is a local PRCM inside the MPU subsystem. For the PRCM (global) + * point of view the PRCM_MPU is a single entity. It shares the same + * programming model as the global PRCM and thus can be assimilate as two new + * MOD inside the PRCM + */ + +/* PRCM_MPU.PRCM_MPU_OCP_SOCKET register offsets */ +#define OMAP54XX_REVISION_PRCM_MPU_OFFSET 0x0000 + +/* PRCM_MPU.PRCM_MPU_DEVICE register offsets */ +#define OMAP54XX_PRCM_MPU_PRM_RSTST_OFFSET 0x0000 +#define OMAP54XX_PRCM_MPU_PRM_PSCON_COUNT_OFFSET 0x0004 +#define OMAP54XX_PRM_FRAC_INCREMENTER_NUMERATOR_OFFSET 0x0010 +#define OMAP54XX_PRM_FRAC_INCREMENTER_DENUMERATOR_RELOAD_OFFSET 0x0014 + +/* PRCM_MPU.PRCM_MPU_PRM_C0 register offsets */ +#define OMAP54XX_PM_CPU0_PWRSTCTRL_OFFSET 0x0000 +#define OMAP54XX_PM_CPU0_PWRSTST_OFFSET 0x0004 +#define OMAP54XX_RM_CPU0_CPU0_RSTCTRL_OFFSET 0x0010 +#define OMAP54XX_RM_CPU0_CPU0_RSTST_OFFSET 0x0014 +#define OMAP54XX_RM_CPU0_CPU0_CONTEXT_OFFSET 0x0024 + +/* PRCM_MPU.PRCM_MPU_CM_C0 register offsets */ +#define OMAP54XX_CM_CPU0_CLKSTCTRL_OFFSET 0x0000 +#define OMAP54XX_CM_CPU0_CPU0_CLKCTRL_OFFSET 0x0020 +#define OMAP54XX_CM_CPU0_CPU0_CLKCTRL OMAP54XX_PRCM_MPU_REGADDR(OMAP54XX_PRCM_MPU_CM_C0_INST, 0x0020) + +/* PRCM_MPU.PRCM_MPU_PRM_C1 register offsets */ +#define OMAP54XX_PM_CPU1_PWRSTCTRL_OFFSET 0x0000 +#define OMAP54XX_PM_CPU1_PWRSTST_OFFSET 0x0004 +#define OMAP54XX_RM_CPU1_CPU1_RSTCTRL_OFFSET 0x0010 +#define OMAP54XX_RM_CPU1_CPU1_RSTST_OFFSET 0x0014 +#define OMAP54XX_RM_CPU1_CPU1_CONTEXT_OFFSET 0x0024 + +/* PRCM_MPU.PRCM_MPU_CM_C1 register offsets */ +#define OMAP54XX_CM_CPU1_CLKSTCTRL_OFFSET 0x0000 +#define OMAP54XX_CM_CPU1_CPU1_CLKCTRL_OFFSET 0x0020 +#define OMAP54XX_CM_CPU1_CPU1_CLKCTRL OMAP54XX_PRCM_MPU_REGADDR(OMAP54XX_PRCM_MPU_CM_C1_INST, 0x0020) + +#endif diff --git a/arch/arm/mach-omap2/prcm_mpu7xx.h b/arch/arm/mach-omap2/prcm_mpu7xx.h new file mode 100644 index 000000000..2e3032440 --- /dev/null +++ b/arch/arm/mach-omap2/prcm_mpu7xx.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * DRA7xx PRCM MPU instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Generated by code originally written by: + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRCM_MPU7XX_H +#define __ARCH_ARM_MACH_OMAP2_PRCM_MPU7XX_H + +#include "prcm_mpu_44xx_54xx.h" + +#define DRA7XX_PRCM_MPU_BASE 0x48243000 + +#define DRA7XX_PRCM_MPU_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(DRA7XX_PRCM_MPU_BASE + (inst) + (reg)) + +/* MPU_PRCM instances */ +#define DRA7XX_MPU_PRCM_OCP_SOCKET_INST 0x0000 +#define DRA7XX_MPU_PRCM_DEVICE_INST 0x0200 +#define DRA7XX_MPU_PRCM_PRM_C0_INST 0x0400 +#define DRA7XX_MPU_PRCM_CM_C0_INST 0x0600 +#define DRA7XX_MPU_PRCM_PRM_C1_INST 0x0800 +#define DRA7XX_MPU_PRCM_CM_C1_INST 0x0a00 + +/* PRCM_MPU clockdomain register offsets (from instance start) */ +#define DRA7XX_MPU_PRCM_CM_C0_CPU0_CDOFFS 0x0000 +#define DRA7XX_MPU_PRCM_CM_C1_CPU1_CDOFFS 0x0000 + + +/* MPU_PRCM */ + +/* MPU_PRCM.PRCM_MPU_OCP_SOCKET register offsets */ +#define DRA7XX_REVISION_PRCM_MPU_OFFSET 0x0000 + +/* MPU_PRCM.PRCM_MPU_DEVICE register offsets */ +#define DRA7XX_PRM_FRAC_INCREMENTER_NUMERATOR_OFFSET 0x0010 +#define DRA7XX_PRM_FRAC_INCREMENTER_DENUMERATOR_RELOAD_OFFSET 0x0014 + +/* MPU_PRCM.PRCM_MPU_PRM_C0 register offsets */ +#define DRA7XX_PM_CPU0_PWRSTCTRL_OFFSET 0x0000 +#define DRA7XX_PM_CPU0_PWRSTST_OFFSET 0x0004 +#define DRA7XX_RM_CPU0_CPU0_RSTCTRL_OFFSET 0x0010 +#define DRA7XX_RM_CPU0_CPU0_RSTST_OFFSET 0x0014 +#define DRA7XX_RM_CPU0_CPU0_CONTEXT_OFFSET 0x0024 + +/* MPU_PRCM.PRCM_MPU_CM_C0 register offsets */ +#define DRA7XX_CM_CPU0_CLKSTCTRL_OFFSET 0x0000 +#define DRA7XX_CM_CPU0_CPU0_CLKCTRL_OFFSET 0x0020 +#define DRA7XX_CM_CPU0_CPU0_CLKCTRL DRA7XX_MPU_PRCM_REGADDR(DRA7XX_MPU_PRCM_CM_C0_INST, 0x0020) + +/* MPU_PRCM.PRCM_MPU_PRM_C1 register offsets */ +#define DRA7XX_PM_CPU1_PWRSTCTRL_OFFSET 0x0000 +#define DRA7XX_PM_CPU1_PWRSTST_OFFSET 0x0004 +#define DRA7XX_RM_CPU1_CPU1_RSTCTRL_OFFSET 0x0010 +#define DRA7XX_RM_CPU1_CPU1_RSTST_OFFSET 0x0014 +#define DRA7XX_RM_CPU1_CPU1_CONTEXT_OFFSET 0x0024 + +/* MPU_PRCM.PRCM_MPU_CM_C1 register offsets */ +#define DRA7XX_CM_CPU1_CLKSTCTRL_OFFSET 0x0000 +#define DRA7XX_CM_CPU1_CPU1_CLKCTRL_OFFSET 0x0020 +#define DRA7XX_CM_CPU1_CPU1_CLKCTRL DRA7XX_MPU_PRCM_REGADDR(DRA7XX_MPU_PRCM_CM_C1_INST, 0x0020) + +#endif diff --git a/arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h b/arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h new file mode 100644 index 000000000..0c519447e --- /dev/null +++ b/arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx and OMAP54xx PRCM MPU function prototypes + * + * Copyright (C) 2010, 2013 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRCM_MPU_44XX_54XX_H +#define __ARCH_ARM_MACH_OMAP2_PRCM_MPU_44XX_54XX_H + +#ifndef __ASSEMBLER__ +#include "prcm-common.h" + +extern struct omap_domain_base prcm_mpu_base; + +extern u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 idx); +extern void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 idx); +extern void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu); +#endif + +#endif diff --git a/arch/arm/mach-omap2/prm-regbits-24xx.h b/arch/arm/mach-omap2/prm-regbits-24xx.h new file mode 100644 index 000000000..ff83801f6 --- /dev/null +++ b/arch/arm/mach-omap2/prm-regbits-24xx.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_24XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_24XX_H + +/* + * OMAP24XX Power/Reset Management register bits + * + * Copyright (C) 2007 Texas Instruments, Inc. + * Copyright (C) 2007 Nokia Corporation + * + * Written by Paul Walmsley + */ + +#include "prm2xxx.h" + +#define OMAP24XX_EN_CORE_SHIFT 0 +#define OMAP24XX_FORCESTATE_MASK (1 << 18) +#define OMAP24XX_AUTOIDLE_MASK (1 << 0) +#define OMAP24XX_AUTO_EXTVOLT_MASK (1 << 15) +#define OMAP24XX_SETOFF_LEVEL_SHIFT 12 +#define OMAP24XX_MEMRETCTRL_MASK (1 << 8) +#define OMAP24XX_SETRET_LEVEL_SHIFT 6 +#define OMAP24XX_VOLT_LEVEL_SHIFT 0 +#define OMAP2420_CLKOUT2_EN_SHIFT 15 +#define OMAP2420_CLKOUT2_DIV_SHIFT 11 +#define OMAP2420_CLKOUT2_DIV_WIDTH 3 +#define OMAP2420_CLKOUT2_SOURCE_MASK (0x3 << 8) +#define OMAP24XX_CLKOUT_EN_SHIFT 7 +#define OMAP24XX_CLKOUT_DIV_SHIFT 3 +#define OMAP24XX_CLKOUT_DIV_WIDTH 3 +#define OMAP24XX_CLKOUT_SOURCE_MASK (0x3 << 0) +#define OMAP24XX_EMULATION_EN_SHIFT 0 +#define OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT 5 +#define OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT 2 +#define OMAP24XX_EXTWMPU_RST_SHIFT 6 +#define OMAP24XX_SECU_WD_RST_SHIFT 5 +#define OMAP24XX_MPU_WD_RST_SHIFT 4 +#define OMAP24XX_SECU_VIOL_RST_SHIFT 3 +#endif diff --git a/arch/arm/mach-omap2/prm-regbits-33xx.h b/arch/arm/mach-omap2/prm-regbits-33xx.h new file mode 100644 index 000000000..9b97f8c76 --- /dev/null +++ b/arch/arm/mach-omap2/prm-regbits-33xx.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * AM33XX PRM_XXX register bits + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_33XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_33XX_H + +#include "prm.h" + +#define AM33XX_GFX_MEM_ONSTATE_MASK (0x3 << 17) +#define AM33XX_GFX_MEM_RETSTATE_MASK (1 << 6) +#define AM33XX_GFX_MEM_STATEST_MASK (0x3 << 4) +#define AM33XX_GLOBAL_WARM_SW_RST_MASK (1 << 1) +#define AM33XX_RST_GLOBAL_WARM_SW_MASK (1 << 0) +#define AM33XX_RST_GLOBAL_COLD_SW_MASK (1 << 1) +#define AM33XX_PRUSS_MEM_ONSTATE_MASK (0x3 << 5) +#define AM33XX_PRUSS_MEM_RETSTATE_MASK (1 << 7) +#define AM33XX_PRUSS_MEM_STATEST_MASK (0x3 << 23) +#define AM33XX_LASTPOWERSTATEENTERED_SHIFT 24 +#define AM33XX_LASTPOWERSTATEENTERED_MASK (0x3 << 24) +#define AM33XX_LOGICRETSTATE_MASK (1 << 2) +#define AM33XX_LOGICRETSTATE_3_3_MASK (1 << 3) +#define AM33XX_LOGICSTATEST_SHIFT 2 +#define AM33XX_LOGICSTATEST_MASK (1 << 2) +#define AM33XX_LOWPOWERSTATECHANGE_SHIFT 4 +#define AM33XX_LOWPOWERSTATECHANGE_MASK (1 << 4) +#define AM33XX_MPU_L1_ONSTATE_MASK (0x3 << 18) +#define AM33XX_MPU_L1_RETSTATE_MASK (1 << 22) +#define AM33XX_MPU_L1_STATEST_MASK (0x3 << 6) +#define AM33XX_MPU_L2_ONSTATE_MASK (0x3 << 20) +#define AM33XX_MPU_L2_RETSTATE_MASK (1 << 23) +#define AM33XX_MPU_L2_STATEST_MASK (0x3 << 8) +#define AM33XX_MPU_RAM_ONSTATE_MASK (0x3 << 16) +#define AM33XX_MPU_RAM_RETSTATE_MASK (1 << 24) +#define AM33XX_MPU_RAM_STATEST_MASK (0x3 << 4) +#define AM33XX_PER_MEM_ONSTATE_MASK (0x3 << 25) +#define AM33XX_PER_MEM_RETSTATE_MASK (1 << 29) +#define AM33XX_PER_MEM_STATEST_MASK (0x3 << 17) +#define AM33XX_RAM_MEM_ONSTATE_MASK (0x3 << 30) +#define AM33XX_RAM_MEM_RETSTATE_MASK (1 << 27) +#define AM33XX_RAM_MEM_STATEST_MASK (0x3 << 21) +#endif diff --git a/arch/arm/mach-omap2/prm-regbits-34xx.h b/arch/arm/mach-omap2/prm-regbits-34xx.h new file mode 100644 index 000000000..4b94fd11a --- /dev/null +++ b/arch/arm/mach-omap2/prm-regbits-34xx.h @@ -0,0 +1,141 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP3430 Power/Reset Management register bits + * + * Copyright (C) 2007-2008 Texas Instruments, Inc. + * Copyright (C) 2007-2008 Nokia Corporation + * + * Written by Paul Walmsley + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_34XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_34XX_H + + +#include "prm3xxx.h" + +#define OMAP3430_ERROROFFSET_MASK (0xff << 24) +#define OMAP3430_ERRORGAIN_MASK (0xff << 16) +#define OMAP3430_INITVOLTAGE_MASK (0xff << 8) +#define OMAP3430_TIMEOUTEN_MASK (1 << 3) +#define OMAP3430_INITVDD_MASK (1 << 2) +#define OMAP3430_FORCEUPDATE_MASK (1 << 1) +#define OMAP3430_VPENABLE_MASK (1 << 0) +#define OMAP3430_SMPSWAITTIMEMIN_SHIFT 8 +#define OMAP3430_VSTEPMIN_SHIFT 0 +#define OMAP3430_SMPSWAITTIMEMAX_SHIFT 8 +#define OMAP3430_VSTEPMAX_SHIFT 0 +#define OMAP3430_VDDMAX_SHIFT 24 +#define OMAP3430_VDDMIN_SHIFT 16 +#define OMAP3430_TIMEOUT_SHIFT 0 +#define OMAP3430_VPVOLTAGE_MASK (0xff << 0) +#define OMAP3430_EN_PER_SHIFT 7 +#define OMAP3430_LOGICSTATEST_MASK (1 << 2) +#define OMAP3430_LASTLOGICSTATEENTERED_MASK (1 << 2) +#define OMAP3430_LASTPOWERSTATEENTERED_MASK (0x3 << 0) +#define OMAP3430_GRPSEL_MCBSP5_MASK (1 << 10) +#define OMAP3430_GRPSEL_MCBSP1_MASK (1 << 9) +#define OMAP3630_GRPSEL_UART4_MASK (1 << 18) +#define OMAP3430_GRPSEL_GPIO6_MASK (1 << 17) +#define OMAP3430_GRPSEL_GPIO5_MASK (1 << 16) +#define OMAP3430_GRPSEL_GPIO4_MASK (1 << 15) +#define OMAP3430_GRPSEL_GPIO3_MASK (1 << 14) +#define OMAP3430_GRPSEL_GPIO2_MASK (1 << 13) +#define OMAP3430_GRPSEL_UART3_MASK (1 << 11) +#define OMAP3430_GRPSEL_GPT8_MASK (1 << 9) +#define OMAP3430_GRPSEL_GPT7_MASK (1 << 8) +#define OMAP3430_GRPSEL_GPT6_MASK (1 << 7) +#define OMAP3430_GRPSEL_GPT5_MASK (1 << 6) +#define OMAP3430_GRPSEL_MCBSP4_MASK (1 << 2) +#define OMAP3430_GRPSEL_MCBSP3_MASK (1 << 1) +#define OMAP3430_GRPSEL_MCBSP2_MASK (1 << 0) +#define OMAP3430_GRPSEL_GPIO1_MASK (1 << 3) +#define OMAP3430_GRPSEL_GPT12_MASK (1 << 1) +#define OMAP3430_GRPSEL_GPT1_MASK (1 << 0) +#define OMAP3430_RST3_IVA2_MASK (1 << 2) +#define OMAP3430_RST2_IVA2_MASK (1 << 1) +#define OMAP3430_RST1_IVA2_MASK (1 << 0) +#define OMAP3430_L2FLATMEMONSTATE_MASK (0x3 << 22) +#define OMAP3430_SHAREDL2CACHEFLATONSTATE_MASK (0x3 << 20) +#define OMAP3430_L1FLATMEMONSTATE_MASK (0x3 << 18) +#define OMAP3430_SHAREDL1CACHEFLATONSTATE_MASK (0x3 << 16) +#define OMAP3430_L2FLATMEMRETSTATE_MASK (1 << 11) +#define OMAP3430_SHAREDL2CACHEFLATRETSTATE_MASK (1 << 10) +#define OMAP3430_L1FLATMEMRETSTATE_MASK (1 << 9) +#define OMAP3430_SHAREDL1CACHEFLATRETSTATE_MASK (1 << 8) +#define OMAP3430_L2FLATMEMSTATEST_MASK (0x3 << 10) +#define OMAP3430_SHAREDL2CACHEFLATSTATEST_MASK (0x3 << 8) +#define OMAP3430_L1FLATMEMSTATEST_MASK (0x3 << 6) +#define OMAP3430_SHAREDL1CACHEFLATSTATEST_MASK (0x3 << 4) +#define OMAP3430_LASTL2FLATMEMSTATEENTERED_MASK (0x3 << 10) +#define OMAP3430_LASTSHAREDL2CACHEFLATSTATEENTERED_MASK (0x3 << 8) +#define OMAP3430ES2_SND_PERIPH_DPLL_ST_SHIFT 25 +#define OMAP3430_VP2_TRANXDONE_ST_MASK (1 << 21) +#define OMAP3430_VP1_TRANXDONE_ST_MASK (1 << 15) +#define OMAP3430_PRM_IRQSTATUS_MPU_IVA2_DPLL_ST_SHIFT 8 +#define OMAP3430_MPU_DPLL_ST_SHIFT 7 +#define OMAP3430_PERIPH_DPLL_ST_SHIFT 6 +#define OMAP3430_CORE_DPLL_ST_SHIFT 5 +#define OMAP3430ES2_SND_PERIPH_DPLL_RECAL_EN_SHIFT 25 +#define OMAP3430_PRM_IRQENABLE_MPU_IVA2_DPLL_RECAL_EN_SHIFT 8 +#define OMAP3430_MPU_DPLL_RECAL_EN_SHIFT 7 +#define OMAP3430_PERIPH_DPLL_RECAL_EN_SHIFT 6 +#define OMAP3430_CORE_DPLL_RECAL_EN_SHIFT 5 +#define OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT 5 +#define OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT 2 +#define OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON_MASK (1 << 1) +#define OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST_MASK (1 << 0) +#define OMAP3430_LASTMEM2STATEENTERED_MASK (0x3 << 6) +#define OMAP3430_LASTMEM1STATEENTERED_MASK (0x3 << 4) +#define OMAP3430_EN_IO_CHAIN_MASK (1 << 16) +#define OMAP3430_EN_IO_MASK (1 << 8) +#define OMAP3430_EN_GPIO1_MASK (1 << 3) +#define OMAP3430_ST_IO_CHAIN_MASK (1 << 16) +#define OMAP3430_ST_IO_MASK (1 << 8) +#define OMAP3430_SYS_CLKIN_SEL_SHIFT 0 +#define OMAP3430_SYS_CLKIN_SEL_WIDTH 3 +#define OMAP3430_CLKOUT_EN_SHIFT 7 +#define OMAP3430_PM_WKEN_DSS_EN_DSS_MASK (1 << 0) +#define OMAP3430ES2_SAVEANDRESTORE_SHIFT 4 +#define OMAP3430_PRM_VC_SMPS_SA_SA1_SHIFT 16 +#define OMAP3430_PRM_VC_SMPS_SA_SA1_MASK (0x7f << 16) +#define OMAP3430_PRM_VC_SMPS_SA_SA0_SHIFT 0 +#define OMAP3430_PRM_VC_SMPS_SA_SA0_MASK (0x7f << 0) +#define OMAP3430_VOLRA1_MASK (0xff << 16) +#define OMAP3430_VOLRA0_MASK (0xff << 0) +#define OMAP3430_CMDRA1_MASK (0xff << 16) +#define OMAP3430_CMDRA0_MASK (0xff << 0) +#define OMAP3430_VC_CMD_ON_SHIFT 24 +#define OMAP3430_VC_CMD_ON_MASK (0xFF << 24) +#define OMAP3430_VC_CMD_ONLP_SHIFT 16 +#define OMAP3430_VC_CMD_RET_SHIFT 8 +#define OMAP3430_VC_CMD_OFF_SHIFT 0 +#define OMAP3430_SREN_MASK (1 << 4) +#define OMAP3430_HSEN_MASK (1 << 3) +#define OMAP3430_MCODE_MASK (0x7 << 0) +#define OMAP3430_VALID_MASK (1 << 24) +#define OMAP3430_DATA_SHIFT 16 +#define OMAP3430_REGADDR_SHIFT 8 +#define OMAP3430_SLAVEADDR_SHIFT 0 +#define OMAP3430_ICECRUSHER_RST_SHIFT 10 +#define OMAP3430_ICEPICK_RST_SHIFT 9 +#define OMAP3430_VDD2_VOLTAGE_MANAGER_RST_SHIFT 8 +#define OMAP3430_VDD1_VOLTAGE_MANAGER_RST_SHIFT 7 +#define OMAP3430_EXTERNAL_WARM_RST_SHIFT 6 +#define OMAP3430_SECURE_WD_RST_SHIFT 5 +#define OMAP3430_MPU_WD_RST_SHIFT 4 +#define OMAP3430_SECURITY_VIOL_RST_SHIFT 3 +#define OMAP3430_GLOBAL_SW_RST_SHIFT 1 +#define OMAP3430_GLOBAL_COLD_RST_SHIFT 0 +#define OMAP3430_GLOBAL_COLD_RST_MASK (1 << 0) +#define OMAP3430_PRM_VOLTCTRL_SEL_VMODE (1 << 4) +#define OMAP3430_PRM_VOLTCTRL_SEL_OFF (1 << 3) +#define OMAP3430_PRM_VOLTCTRL_AUTO_OFF (1 << 2) +#define OMAP3430_PRM_VOLTCTRL_AUTO_RET (1 << 1) +#define OMAP3430_PRM_VOLTCTRL_AUTO_SLEEP (1 << 0) +#define OMAP3430_SETUP_TIME2_MASK (0xffff << 16) +#define OMAP3430_SETUP_TIME1_MASK (0xffff << 0) +#define OMAP3430_PRM_POLCTRL_OFFMODE_POL (1 << 3) +#define OMAP3430_PRM_POLCTRL_CLKOUT_POL (1 << 2) +#define OMAP3430_PRM_POLCTRL_CLKREQ_POL (1 << 1) +#define OMAP3430_PRM_POLCTRL_EXTVOL_POL (1 << 0) +#endif diff --git a/arch/arm/mach-omap2/prm-regbits-44xx.h b/arch/arm/mach-omap2/prm-regbits-44xx.h new file mode 100644 index 000000000..55d84d0d7 --- /dev/null +++ b/arch/arm/mach-omap2/prm-regbits-44xx.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx Power Management register bits + * + * Copyright (C) 2009-2010 Texas Instruments, Inc. + * Copyright (C) 2009-2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_44XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM_REGBITS_44XX_H + +#define OMAP4430_C2C_RST_SHIFT 10 +#define OMAP4430_CMDRA_VDD_CORE_L_MASK (0xff << 0) +#define OMAP4430_CMDRA_VDD_IVA_L_MASK (0xff << 8) +#define OMAP4430_CMDRA_VDD_MPU_L_MASK (0xff << 16) +#define OMAP4430_DATA_SHIFT 16 +#define OMAP4430_ERRORGAIN_MASK (0xff << 16) +#define OMAP4430_ERROROFFSET_MASK (0xff << 24) +#define OMAP4430_EXTERNAL_WARM_RST_SHIFT 5 +#define OMAP4430_FORCEUPDATE_MASK (1 << 1) +#define OMAP4430_GLOBAL_COLD_RST_SHIFT 0 +#define OMAP4430_GLOBAL_WARM_SW_RST_SHIFT 1 +#define OMAP4430_GLOBAL_WUEN_MASK (1 << 16) +#define OMAP4430_HSMCODE_MASK (0x7 << 0) +#define OMAP4430_SRMODEEN_MASK (1 << 4) +#define OMAP4430_HSMODEEN_MASK (1 << 3) +#define OMAP4430_HSSCLL_SHIFT 24 +#define OMAP4430_ICEPICK_RST_SHIFT 9 +#define OMAP4430_INITVDD_MASK (1 << 2) +#define OMAP4430_INITVOLTAGE_MASK (0xff << 8) +#define OMAP4430_LASTPOWERSTATEENTERED_SHIFT 24 +#define OMAP4430_LASTPOWERSTATEENTERED_MASK (0x3 << 24) +#define OMAP4430_LOGICRETSTATE_SHIFT 2 +#define OMAP4430_LOGICRETSTATE_MASK (1 << 2) +#define OMAP4430_LOGICSTATEST_SHIFT 2 +#define OMAP4430_LOGICSTATEST_MASK (1 << 2) +#define OMAP4430_LOSTCONTEXT_DFF_MASK (1 << 0) +#define OMAP4430_LOSTMEM_AESSMEM_MASK (1 << 8) +#define OMAP4430_LOWPOWERSTATECHANGE_SHIFT 4 +#define OMAP4430_LOWPOWERSTATECHANGE_MASK (1 << 4) +#define OMAP4430_MPU_SECURITY_VIOL_RST_SHIFT 2 +#define OMAP4430_MPU_WDT_RST_SHIFT 3 +#define OMAP4430_OCP_NRET_BANK_ONSTATE_MASK (0x3 << 24) +#define OMAP4430_OCP_NRET_BANK_RETSTATE_MASK (1 << 12) +#define OMAP4430_OCP_NRET_BANK_STATEST_MASK (0x3 << 12) +#define OMAP4430_OFF_SHIFT 0 +#define OMAP4430_ON_SHIFT 24 +#define OMAP4430_ON_MASK (0xff << 24) +#define OMAP4430_ONLP_SHIFT 16 +#define OMAP4430_RAMP_DOWN_COUNT_SHIFT 16 +#define OMAP4430_RAMP_UP_COUNT_SHIFT 0 +#define OMAP4430_RAMP_UP_PRESCAL_SHIFT 8 +#define OMAP4430_REGADDR_SHIFT 8 +#define OMAP4430_RET_SHIFT 8 +#define OMAP4430_RST_GLOBAL_WARM_SW_MASK (1 << 0) +#define OMAP4430_SA_VDD_CORE_L_SHIFT 0 +#define OMAP4430_SA_VDD_CORE_L_0_6_MASK (0x7f << 0) +#define OMAP4430_SA_VDD_IVA_L_SHIFT 8 +#define OMAP4430_SA_VDD_IVA_L_PRM_VC_SMPS_SA_MASK (0x7f << 8) +#define OMAP4430_SA_VDD_MPU_L_SHIFT 16 +#define OMAP4430_SA_VDD_MPU_L_PRM_VC_SMPS_SA_MASK (0x7f << 16) +#define OMAP4430_SCLH_SHIFT 0 +#define OMAP4430_SCLL_SHIFT 8 +#define OMAP4430_SECURE_WDT_RST_SHIFT 4 +#define OMAP4430_SLAVEADDR_SHIFT 0 +#define OMAP4430_SMPSWAITTIMEMAX_SHIFT 8 +#define OMAP4430_SMPSWAITTIMEMIN_SHIFT 8 +#define OMAP4430_TIMEOUT_SHIFT 0 +#define OMAP4430_TIMEOUTEN_MASK (1 << 3) +#define OMAP4430_VALID_MASK (1 << 24) +#define OMAP4430_VDDMAX_SHIFT 24 +#define OMAP4430_VDDMIN_SHIFT 16 +#define OMAP4430_VDD_CORE_VOLT_MGR_RST_SHIFT 8 +#define OMAP4430_VDD_IVA_VOLT_MGR_RST_SHIFT 7 +#define OMAP4430_VDD_MPU_VOLT_MGR_RST_SHIFT 6 +#define OMAP4430_VOLRA_VDD_CORE_L_MASK (0xff << 0) +#define OMAP4430_VOLRA_VDD_IVA_L_MASK (0xff << 8) +#define OMAP4430_VOLRA_VDD_MPU_L_MASK (0xff << 16) +#define OMAP4430_VPENABLE_MASK (1 << 0) +#define OMAP4430_VPVOLTAGE_MASK (0xff << 0) +#define OMAP4430_VP_CORE_TRANXDONE_ST_MASK (1 << 21) +#define OMAP4430_VP_IVA_TRANXDONE_ST_MASK (1 << 29) +#define OMAP4430_VP_MPU_TRANXDONE_ST_MASK (1 << 5) +#define OMAP4430_VSTEPMAX_SHIFT 0 +#define OMAP4430_VSTEPMIN_SHIFT 0 +#define OMAP4430_WUCLK_CTRL_MASK (1 << 8) +#define OMAP4430_WUCLK_STATUS_SHIFT 9 +#define OMAP4430_WUCLK_STATUS_MASK (1 << 9) +#endif diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h new file mode 100644 index 000000000..fc53a27ee --- /dev/null +++ b/arch/arm/mach-omap2/prm.h @@ -0,0 +1,179 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2/3/4 Power/Reset Management (PRM) bitfield definitions + * + * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * + * Paul Walmsley + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM_H +#define __ARCH_ARM_MACH_OMAP2_PRM_H + +#include "prcm-common.h" + +# ifndef __ASSEMBLER__ +extern struct omap_domain_base prm_base; +extern u16 prm_features; +extern enum reboot_mode prm_reboot_mode; +int omap_prcm_init(void); +int omap2_prcm_base_init(void); +# endif + +/* + * prm_features flag values + * + * PRM_HAS_IO_WAKEUP: has IO wakeup capability + * PRM_HAS_VOLTAGE: has voltage domains + */ +#define PRM_HAS_IO_WAKEUP BIT(0) +#define PRM_HAS_VOLTAGE BIT(1) + +/* + * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP + * module to softreset + */ +#define MAX_MODULE_SOFTRESET_WAIT 10000 + +/* + * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP + * submodule to exit hardreset + */ +#define MAX_MODULE_HARDRESET_WAIT 10000 + +/* + * Register bitfields + */ + +/* + * 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP + * + * 2430: PM_PWSTST_MDM + * + * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX, + * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU, + * PM_PWSTST_NEON + */ +#define OMAP_INTRANSITION_MASK (1 << 20) + + +/* + * 24XX: PM_PWSTST_GFX, PM_PWSTST_DSP + * + * 2430: PM_PWSTST_MDM + * + * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX, + * PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU, + * PM_PWSTST_NEON + */ +#define OMAP_POWERSTATEST_SHIFT 0 +#define OMAP_POWERSTATEST_MASK (0x3 << 0) + +/* + * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, + * PM_PWSTCTRL_DSP, PM_PWSTST_MPU + * + * 2430: PM_PWSTCTRL_MDM shared bits + * + * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, + * PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER, + * PM_PWSTCTRL_NEON shared bits + */ +#define OMAP_POWERSTATE_SHIFT 0 +#define OMAP_POWERSTATE_MASK (0x3 << 0) + +/* + * Standardized OMAP reset source bits + * + * To the extent these happen to match the hardware register bit + * shifts, it's purely coincidental. Used by omap-wdt.c. + * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever + * there are any bits remaining in the global PRM_RSTST register that + * haven't been identified, or when the PRM code for the current SoC + * doesn't know how to interpret the register. + */ +#define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT 0 +#define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT 1 +#define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT 2 +#define OMAP_MPU_WD_RST_SRC_ID_SHIFT 3 +#define OMAP_SECU_WD_RST_SRC_ID_SHIFT 4 +#define OMAP_EXTWARM_RST_SRC_ID_SHIFT 5 +#define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT 6 +#define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT 7 +#define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT 8 +#define OMAP_ICEPICK_RST_SRC_ID_SHIFT 9 +#define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT 10 +#define OMAP_C2C_RST_SRC_ID_SHIFT 11 +#define OMAP_UNKNOWN_RST_SRC_ID_SHIFT 12 + +#ifndef __ASSEMBLER__ + +/** + * struct prm_reset_src_map - map register bitshifts to standard bitshifts + * @reg_shift: bitshift in the PRM reset source register + * @std_shift: bitshift equivalent in the standard reset source list + * + * The fields are signed because -1 is used as a terminator. + */ +struct prm_reset_src_map { + s8 reg_shift; + s8 std_shift; +}; + +/** + * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations + * @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl + * @was_any_context_lost_old: ptr to the SoC PRM context loss test fn + * @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn + * @late_init: ptr to the late init function + * @assert_hardreset: ptr to the SoC PRM hardreset assert impl + * @deassert_hardreset: ptr to the SoC PRM hardreset deassert impl + * + * XXX @was_any_context_lost_old and @clear_context_loss_flags_old are + * deprecated. + */ +struct prm_ll_data { + u32 (*read_reset_sources)(void); + bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx); + void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx); + int (*late_init)(void); + int (*assert_hardreset)(u8 shift, u8 part, s16 prm_mod, u16 offset); + int (*deassert_hardreset)(u8 shift, u8 st_shift, u8 part, s16 prm_mod, + u16 offset, u16 st_offset); + int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod, + u16 offset); + void (*reset_system)(void); + int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask); + u32 (*vp_check_txdone)(u8 vp_id); + void (*vp_clear_txdone)(u8 vp_id); +}; + +extern int prm_register(struct prm_ll_data *pld); +extern int prm_unregister(struct prm_ll_data *pld); + +int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset); +int omap_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 prm_mod, + u16 offset, u16 st_offset); +int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset); +extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx); +extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx); +void omap_prm_reset_system(void); + +int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask); + +/* + * Voltage Processor (VP) identifiers + */ +#define OMAP3_VP_VDD_MPU_ID 0 +#define OMAP3_VP_VDD_CORE_ID 1 +#define OMAP4_VP_VDD_CORE_ID 0 +#define OMAP4_VP_VDD_IVA_ID 1 +#define OMAP4_VP_VDD_MPU_ID 2 + +u32 omap_prm_vp_check_txdone(u8 vp_id); +void omap_prm_vp_clear_txdone(u8 vp_id); + +#endif + + +#endif diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c new file mode 100644 index 000000000..35a58f54b --- /dev/null +++ b/arch/arm/mach-omap2/prm2xxx.c @@ -0,0 +1,229 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2xxx PRM module functions + * + * Copyright (C) 2010-2012 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * Benoît Cousson + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/irq.h> + +#include "powerdomain.h" +#include "clockdomain.h" +#include "prm2xxx.h" +#include "cm2xxx_3xxx.h" +#include "prm-regbits-24xx.h" + +/* + * OMAP24xx PM_PWSTCTRL_*.POWERSTATE and PM_PWSTST_*.LASTSTATEENTERED bits - + * these are reversed from the bits used on OMAP3+ + */ +#define OMAP24XX_PWRDM_POWER_ON 0x0 +#define OMAP24XX_PWRDM_POWER_RET 0x1 +#define OMAP24XX_PWRDM_POWER_OFF 0x3 + +/* + * omap2xxx_prm_reset_src_map - map from bits in the PRM_RSTST_WKUP + * hardware register (which are specific to the OMAP2xxx SoCs) to + * reset source ID bit shifts (which is an OMAP SoC-independent + * enumeration) + */ +static struct prm_reset_src_map omap2xxx_prm_reset_src_map[] = { + { OMAP_GLOBALCOLD_RST_SHIFT, OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT }, + { OMAP_GLOBALWARM_RST_SHIFT, OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT }, + { OMAP24XX_SECU_VIOL_RST_SHIFT, OMAP_SECU_VIOL_RST_SRC_ID_SHIFT }, + { OMAP24XX_MPU_WD_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP24XX_SECU_WD_RST_SHIFT, OMAP_SECU_WD_RST_SRC_ID_SHIFT }, + { OMAP24XX_EXTWMPU_RST_SHIFT, OMAP_EXTWARM_RST_SRC_ID_SHIFT }, + { -1, -1 }, +}; + +/** + * omap2xxx_prm_read_reset_sources - return the last SoC reset source + * + * Return a u32 representing the last reset sources of the SoC. The + * returned reset source bits are standardized across OMAP SoCs. + */ +static u32 omap2xxx_prm_read_reset_sources(void) +{ + struct prm_reset_src_map *p; + u32 r = 0; + u32 v; + + v = omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST); + + p = omap2xxx_prm_reset_src_map; + while (p->reg_shift >= 0 && p->std_shift >= 0) { + if (v & (1 << p->reg_shift)) + r |= 1 << p->std_shift; + p++; + } + + return r; +} + +/** + * omap2xxx_pwrst_to_common_pwrst - convert OMAP2xxx pwrst to common pwrst + * @omap2xxx_pwrst: OMAP2xxx hardware power state to convert + * + * Return the common power state bits corresponding to the OMAP2xxx + * hardware power state bits @omap2xxx_pwrst, or -EINVAL upon error. + */ +static int omap2xxx_pwrst_to_common_pwrst(u8 omap2xxx_pwrst) +{ + u8 pwrst; + + switch (omap2xxx_pwrst) { + case OMAP24XX_PWRDM_POWER_OFF: + pwrst = PWRDM_POWER_OFF; + break; + case OMAP24XX_PWRDM_POWER_RET: + pwrst = PWRDM_POWER_RET; + break; + case OMAP24XX_PWRDM_POWER_ON: + pwrst = PWRDM_POWER_ON; + break; + default: + return -EINVAL; + } + + return pwrst; +} + +/** + * omap2xxx_prm_dpll_reset - use DPLL reset to reboot the OMAP SoC + * + * Set the DPLL reset bit, which should reboot the SoC. This is the + * recommended way to restart the SoC. No return value. + */ +static void omap2xxx_prm_dpll_reset(void) +{ + omap2_prm_set_mod_reg_bits(OMAP_RST_DPLL3_MASK, WKUP_MOD, + OMAP2_RM_RSTCTRL); + /* OCP barrier */ + omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTCTRL); +} + +/** + * omap2xxx_prm_clear_mod_irqs - clear wakeup status bits for a module + * @module: PRM module to clear wakeups from + * @regs: register offset to clear + * @wkst_mask: wakeup status mask to clear + * + * Clears wakeup status bits for a given module, so that the device can + * re-enter idle. + */ +static int omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask) +{ + u32 wkst; + + wkst = omap2_prm_read_mod_reg(module, regs); + wkst &= wkst_mask; + omap2_prm_write_mod_reg(wkst, module, regs); + return 0; +} + +int omap2xxx_clkdm_sleep(struct clockdomain *clkdm) +{ + omap2_prm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK, + clkdm->pwrdm.ptr->prcm_offs, + OMAP2_PM_PWSTCTRL); + return 0; +} + +int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm) +{ + omap2_prm_clear_mod_reg_bits(OMAP24XX_FORCESTATE_MASK, + clkdm->pwrdm.ptr->prcm_offs, + OMAP2_PM_PWSTCTRL); + return 0; +} + +static int omap2xxx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + u8 omap24xx_pwrst; + + switch (pwrst) { + case PWRDM_POWER_OFF: + omap24xx_pwrst = OMAP24XX_PWRDM_POWER_OFF; + break; + case PWRDM_POWER_RET: + omap24xx_pwrst = OMAP24XX_PWRDM_POWER_RET; + break; + case PWRDM_POWER_ON: + omap24xx_pwrst = OMAP24XX_PWRDM_POWER_ON; + break; + default: + return -EINVAL; + } + + omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (omap24xx_pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); + return 0; +} + +static int omap2xxx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + u8 omap2xxx_pwrst; + + omap2xxx_pwrst = omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP_POWERSTATE_MASK); + + return omap2xxx_pwrst_to_common_pwrst(omap2xxx_pwrst); +} + +static int omap2xxx_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + u8 omap2xxx_pwrst; + + omap2xxx_pwrst = omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP_POWERSTATEST_MASK); + + return omap2xxx_pwrst_to_common_pwrst(omap2xxx_pwrst); +} + +struct pwrdm_ops omap2_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap2xxx_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap2xxx_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap2xxx_pwrdm_read_pwrst, + .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, + .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, + .pwrdm_read_mem_pwrst = omap2_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = omap2_pwrdm_read_mem_retst, + .pwrdm_wait_transition = omap2_pwrdm_wait_transition, +}; + +/* + * + */ + +static struct prm_ll_data omap2xxx_prm_ll_data = { + .read_reset_sources = &omap2xxx_prm_read_reset_sources, + .assert_hardreset = &omap2_prm_assert_hardreset, + .deassert_hardreset = &omap2_prm_deassert_hardreset, + .is_hardreset_asserted = &omap2_prm_is_hardreset_asserted, + .reset_system = &omap2xxx_prm_dpll_reset, + .clear_mod_irqs = &omap2xxx_prm_clear_mod_irqs, +}; + +int __init omap2xxx_prm_init(const struct omap_prcm_init_data *data) +{ + return prm_register(&omap2xxx_prm_ll_data); +} + +static void __exit omap2xxx_prm_exit(void) +{ + prm_unregister(&omap2xxx_prm_ll_data); +} +__exitcall(omap2xxx_prm_exit); diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h new file mode 100644 index 000000000..659b91734 --- /dev/null +++ b/arch/arm/mach-omap2/prm2xxx.h @@ -0,0 +1,128 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2xxx Power/Reset Management (PRM) register definitions + * + * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * Paul Walmsley + * + * The PRM hardware modules on the OMAP2/3 are quite similar to each + * other. The PRM on OMAP4 has a new register layout, and is handled + * in a separate file. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM2XXX_H +#define __ARCH_ARM_MACH_OMAP2_PRM2XXX_H + +#include "prcm-common.h" +#include "prm.h" +#include "prm2xxx_3xxx.h" + +#define OMAP2420_PRM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE + (module) + (reg)) +#define OMAP2430_PRM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE + (module) + (reg)) + +/* + * OMAP2-specific global PRM registers + * Use {read,write}l_relaxed() with these registers. + * + * With a few exceptions, these are the register names beginning with + * PRCM_* on 24xx. (The exceptions are the IRQSTATUS and IRQENABLE + * bits.) + * + */ + +#define OMAP2_PRCM_REVISION_OFFSET 0x0000 +#define OMAP2420_PRCM_REVISION OMAP2420_PRM_REGADDR(OCP_MOD, 0x0000) +#define OMAP2_PRCM_SYSCONFIG_OFFSET 0x0010 +#define OMAP2420_PRCM_SYSCONFIG OMAP2420_PRM_REGADDR(OCP_MOD, 0x0010) + +#define OMAP2_PRCM_IRQSTATUS_MPU_OFFSET 0x0018 +#define OMAP2420_PRCM_IRQSTATUS_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP2_PRCM_IRQENABLE_MPU_OFFSET 0x001c +#define OMAP2420_PRCM_IRQENABLE_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x001c) + +#define OMAP2_PRCM_VOLTCTRL_OFFSET 0x0050 +#define OMAP2420_PRCM_VOLTCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0050) +#define OMAP2_PRCM_VOLTST_OFFSET 0x0054 +#define OMAP2420_PRCM_VOLTST OMAP2420_PRM_REGADDR(OCP_MOD, 0x0054) +#define OMAP2_PRCM_CLKSRC_CTRL_OFFSET 0x0060 +#define OMAP2420_PRCM_CLKSRC_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0060) +#define OMAP2_PRCM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP2420_PRCM_CLKOUT_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0070) +#define OMAP2_PRCM_CLKEMUL_CTRL_OFFSET 0x0078 +#define OMAP2420_PRCM_CLKEMUL_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0078) +#define OMAP2_PRCM_CLKCFG_CTRL_OFFSET 0x0080 +#define OMAP2420_PRCM_CLKCFG_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0080) +#define OMAP2_PRCM_CLKCFG_STATUS_OFFSET 0x0084 +#define OMAP2420_PRCM_CLKCFG_STATUS OMAP2420_PRM_REGADDR(OCP_MOD, 0x0084) +#define OMAP2_PRCM_VOLTSETUP_OFFSET 0x0090 +#define OMAP2420_PRCM_VOLTSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0090) +#define OMAP2_PRCM_CLKSSETUP_OFFSET 0x0094 +#define OMAP2420_PRCM_CLKSSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0094) +#define OMAP2_PRCM_POLCTRL_OFFSET 0x0098 +#define OMAP2420_PRCM_POLCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0098) + +#define OMAP2430_PRCM_REVISION OMAP2430_PRM_REGADDR(OCP_MOD, 0x0000) +#define OMAP2430_PRCM_SYSCONFIG OMAP2430_PRM_REGADDR(OCP_MOD, 0x0010) + +#define OMAP2430_PRCM_IRQSTATUS_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP2430_PRCM_IRQENABLE_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x001c) + +#define OMAP2430_PRCM_VOLTCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0050) +#define OMAP2430_PRCM_VOLTST OMAP2430_PRM_REGADDR(OCP_MOD, 0x0054) +#define OMAP2430_PRCM_CLKSRC_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0060) +#define OMAP2430_PRCM_CLKOUT_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0070) +#define OMAP2430_PRCM_CLKEMUL_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0078) +#define OMAP2430_PRCM_CLKCFG_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0080) +#define OMAP2430_PRCM_CLKCFG_STATUS OMAP2430_PRM_REGADDR(OCP_MOD, 0x0084) +#define OMAP2430_PRCM_VOLTSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0090) +#define OMAP2430_PRCM_CLKSSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0094) +#define OMAP2430_PRCM_POLCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0098) + +/* + * Module specific PRM register offsets from PRM_BASE + domain offset + * + * Use prm_{read,write}_mod_reg() with these registers. + * + * With a few exceptions, these are the register names beginning with + * {PM,RM}_* on both OMAP2/3 SoC families.. (The exceptions are the + * IRQSTATUS and IRQENABLE bits.) + */ + +/* Register offsets appearing on both OMAP2 and OMAP3 */ + +#define OMAP2_RM_RSTCTRL 0x0050 +#define OMAP2_RM_RSTTIME 0x0054 +#define OMAP2_RM_RSTST 0x0058 +#define OMAP2_PM_PWSTCTRL 0x00e0 +#define OMAP2_PM_PWSTST 0x00e4 + +#define PM_WKEN 0x00a0 +#define PM_WKEN1 PM_WKEN +#define PM_WKST 0x00b0 +#define PM_WKST1 PM_WKST +#define PM_WKDEP 0x00c8 +#define PM_EVGENCTRL 0x00d4 +#define PM_EVGENONTIM 0x00d8 +#define PM_EVGENOFFTIM 0x00dc + +/* OMAP2xxx specific register offsets */ +#define OMAP24XX_PM_WKEN2 0x00a4 +#define OMAP24XX_PM_WKST2 0x00b4 + +#define OMAP24XX_PRCM_IRQSTATUS_DSP 0x00f0 /* IVA mod */ +#define OMAP24XX_PRCM_IRQENABLE_DSP 0x00f4 /* IVA mod */ +#define OMAP24XX_PRCM_IRQSTATUS_IVA 0x00f8 +#define OMAP24XX_PRCM_IRQENABLE_IVA 0x00fc + +#ifndef __ASSEMBLER__ +/* Function prototypes */ +extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm); +extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm); + +int __init omap2xxx_prm_init(const struct omap_prcm_init_data *data); + +#endif + +#endif diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c new file mode 100644 index 000000000..d983efac6 --- /dev/null +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c @@ -0,0 +1,237 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2/3 PRM module functions + * + * Copyright (C) 2010-2011 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * Benoît Cousson + * Paul Walmsley + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "powerdomain.h" +#include "prm2xxx_3xxx.h" +#include "prm-regbits-24xx.h" +#include "clockdomain.h" + +/** + * omap2_prm_is_hardreset_asserted - read the HW reset line state of + * submodules contained in the hwmod module + * @shift: register bit shift corresponding to the reset line to check + * @part: PRM partition, ignored for OMAP2 + * @prm_mod: PRM submodule base (e.g. CORE_MOD) + * @offset: register offset, ignored for OMAP2 + * + * Returns 1 if the (sub)module hardreset line is currently asserted, + * 0 if the (sub)module hardreset line is not currently asserted, or + * -EINVAL if called while running on a non-OMAP2/3 chip. + */ +int omap2_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset) +{ + return omap2_prm_read_mod_bits_shift(prm_mod, OMAP2_RM_RSTCTRL, + (1 << shift)); +} + +/** + * omap2_prm_assert_hardreset - assert the HW reset line of a submodule + * @shift: register bit shift corresponding to the reset line to assert + * @part: PRM partition, ignored for OMAP2 + * @prm_mod: PRM submodule base (e.g. CORE_MOD) + * @offset: register offset, ignored for OMAP2 + * + * Some IPs like dsp or iva contain processors that require an HW + * reset line to be asserted / deasserted in order to fully enable the + * IP. These modules may have multiple hard-reset lines that reset + * different 'submodules' inside the IP block. This function will + * place the submodule into reset. Returns 0 upon success or -EINVAL + * upon an argument error. + */ +int omap2_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset) +{ + u32 mask; + + mask = 1 << shift; + omap2_prm_rmw_mod_reg_bits(mask, mask, prm_mod, OMAP2_RM_RSTCTRL); + + return 0; +} + +/** + * omap2_prm_deassert_hardreset - deassert a submodule hardreset line and wait + * @prm_mod: PRM submodule base (e.g. CORE_MOD) + * @rst_shift: register bit shift corresponding to the reset line to deassert + * @st_shift: register bit shift for the status of the deasserted submodule + * @part: PRM partition, not used for OMAP2 + * @prm_mod: PRM submodule base (e.g. CORE_MOD) + * @rst_offset: reset register offset, not used for OMAP2 + * @st_offset: reset status register offset, not used for OMAP2 + * + * Some IPs like dsp or iva contain processors that require an HW + * reset line to be asserted / deasserted in order to fully enable the + * IP. These modules may have multiple hard-reset lines that reset + * different 'submodules' inside the IP block. This function will + * take the submodule out of reset and wait until the PRCM indicates + * that the reset has completed before returning. Returns 0 upon success or + * -EINVAL upon an argument error, -EEXIST if the submodule was already out + * of reset, or -EBUSY if the submodule did not exit reset promptly. + */ +int omap2_prm_deassert_hardreset(u8 rst_shift, u8 st_shift, u8 part, + s16 prm_mod, u16 rst_offset, u16 st_offset) +{ + u32 rst, st; + int c; + + rst = 1 << rst_shift; + st = 1 << st_shift; + + /* Check the current status to avoid de-asserting the line twice */ + if (omap2_prm_read_mod_bits_shift(prm_mod, OMAP2_RM_RSTCTRL, rst) == 0) + return -EEXIST; + + /* Clear the reset status by writing 1 to the status bit */ + omap2_prm_rmw_mod_reg_bits(0xffffffff, st, prm_mod, OMAP2_RM_RSTST); + /* de-assert the reset control line */ + omap2_prm_rmw_mod_reg_bits(rst, 0, prm_mod, OMAP2_RM_RSTCTRL); + /* wait the status to be set */ + omap_test_timeout(omap2_prm_read_mod_bits_shift(prm_mod, OMAP2_RM_RSTST, + st), + MAX_MODULE_HARDRESET_WAIT, c); + + return (c == MAX_MODULE_HARDRESET_WAIT) ? -EBUSY : 0; +} + + +/* Powerdomain low-level functions */ + +/* Common functions across OMAP2 and OMAP3 */ +int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_onstate_mask(bank); + + omap2_prm_rmw_mod_reg_bits(m, (pwrst << __ffs(m)), pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); + + return 0; +} + +int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); + + omap2_prm_rmw_mod_reg_bits(m, (pwrst << __ffs(m)), pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); + + return 0; +} + +int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_stst_mask(bank); + + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP2_PM_PWSTST, + m); +} + +int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); + + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, m); +} + +int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) +{ + u32 v; + + v = pwrst << __ffs(OMAP_LOGICRETSTATE_MASK); + omap2_prm_rmw_mod_reg_bits(OMAP_LOGICRETSTATE_MASK, v, pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); + + return 0; +} + +int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm) +{ + u32 c = 0; + + /* + * REVISIT: pwrdm_wait_transition() may be better implemented + * via a callback and a periodic timer check -- how long do we expect + * powerdomain transitions to take? + */ + + /* XXX Is this udelay() value meaningful? */ + while ((omap2_prm_read_mod_reg(pwrdm->prcm_offs, OMAP2_PM_PWSTST) & + OMAP_INTRANSITION_MASK) && + (c++ < PWRDM_TRANSITION_BAILOUT)) + udelay(1); + + if (c > PWRDM_TRANSITION_BAILOUT) { + pr_err("powerdomain: %s: waited too long to complete transition\n", + pwrdm->name); + return -EAGAIN; + } + + pr_debug("powerdomain: completed transition in %d loops\n", c); + + return 0; +} + +int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_prm_set_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); + return 0; +} + +int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_prm_clear_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); + return 0; +} + +int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, + PM_WKDEP, (1 << clkdm2->dep_bit)); +} + +/* XXX Caller must hold the clkdm's powerdomain lock */ +int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm) +{ + struct clkdm_dep *cd; + u32 mask = 0; + + for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + /* PRM accesses are slow, so minimize them */ + mask |= 1 << cd->clkdm->dep_bit; + cd->wkdep_usecount = 0; + } + + omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, + PM_WKDEP); + return 0; +} + diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.h b/arch/arm/mach-omap2/prm2xxx_3xxx.h new file mode 100644 index 000000000..bc263d564 --- /dev/null +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.h @@ -0,0 +1,242 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP2xxx/3xxx-common Power/Reset Management (PRM) register definitions + * + * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * Paul Walmsley + * + * The PRM hardware modules on the OMAP2/3 are quite similar to each + * other. The PRM on OMAP4 has a new register layout, and is handled + * in a separate file. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H +#define __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H + +#include "prcm-common.h" +#include "prm.h" + +/* + * Module specific PRM register offsets from PRM_BASE + domain offset + * + * Use prm_{read,write}_mod_reg() with these registers. + * + * With a few exceptions, these are the register names beginning with + * {PM,RM}_* on both OMAP2/3 SoC families.. (The exceptions are the + * IRQSTATUS and IRQENABLE bits.) + */ + +/* Register offsets appearing on both OMAP2 and OMAP3 */ + +#define OMAP2_RM_RSTCTRL 0x0050 +#define OMAP2_RM_RSTTIME 0x0054 +#define OMAP2_RM_RSTST 0x0058 +#define OMAP2_PM_PWSTCTRL 0x00e0 +#define OMAP2_PM_PWSTST 0x00e4 + +#define PM_WKEN 0x00a0 +#define PM_WKEN1 PM_WKEN +#define PM_WKST 0x00b0 +#define PM_WKST1 PM_WKST +#define PM_WKDEP 0x00c8 +#define PM_EVGENCTRL 0x00d4 +#define PM_EVGENONTIM 0x00d8 +#define PM_EVGENOFFTIM 0x00dc + + +#ifndef __ASSEMBLER__ + +#include <linux/io.h> +#include "powerdomain.h" + +/* Power/reset management domain register get/set */ +static inline u32 omap2_prm_read_mod_reg(s16 module, u16 idx) +{ + return readl_relaxed(prm_base.va + module + idx); +} + +static inline void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx) +{ + writel_relaxed(val, prm_base.va + module + idx); +} + +/* Read-modify-write a register in a PRM module. Caller must lock */ +static inline u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, + s16 idx) +{ + u32 v; + + v = omap2_prm_read_mod_reg(module, idx); + v &= ~mask; + v |= bits; + omap2_prm_write_mod_reg(v, module, idx); + + return v; +} + +/* Read a PRM register, AND it, and shift the result down to bit 0 */ +static inline u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) +{ + u32 v; + + v = omap2_prm_read_mod_reg(domain, idx); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +static inline u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_prm_rmw_mod_reg_bits(bits, bits, module, idx); +} + +static inline u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_prm_rmw_mod_reg_bits(bits, 0x0, module, idx); +} + +/* These omap2_ PRM functions apply to both OMAP2 and 3 */ +int omap2_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset); +int omap2_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, + u16 offset); +int omap2_prm_deassert_hardreset(u8 rst_shift, u8 st_shift, u8 part, + s16 prm_mod, u16 reset_offset, + u16 st_offset); + +extern int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst); +extern int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst); +extern int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank); +extern int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank); +extern int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst); +extern int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm); + +extern int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm); + +#endif /* __ASSEMBLER */ + +/* + * Bits common to specific registers + * + * The 3430 register and bit names are generally used, + * since they tend to make more sense + */ + +/* PM_EVGENONTIM_MPU */ +/* Named PM_EVEGENONTIM_MPU on the 24XX */ +#define OMAP_ONTIMEVAL_SHIFT 0 +#define OMAP_ONTIMEVAL_MASK (0xffffffff << 0) + +/* PM_EVGENOFFTIM_MPU */ +/* Named PM_EVEGENOFFTIM_MPU on the 24XX */ +#define OMAP_OFFTIMEVAL_SHIFT 0 +#define OMAP_OFFTIMEVAL_MASK (0xffffffff << 0) + +/* PRM_CLKSETUP and PRCM_VOLTSETUP */ +/* Named PRCM_CLKSSETUP on the 24XX */ +#define OMAP_SETUP_TIME_SHIFT 0 +#define OMAP_SETUP_TIME_MASK (0xffff << 0) + +/* PRM_CLKSRC_CTRL */ +/* Named PRCM_CLKSRC_CTRL on the 24XX */ +#define OMAP_SYSCLKDIV_SHIFT 6 +#define OMAP_SYSCLKDIV_MASK (0x3 << 6) +#define OMAP_SYSCLKDIV_WIDTH 2 +#define OMAP_AUTOEXTCLKMODE_SHIFT 3 +#define OMAP_AUTOEXTCLKMODE_MASK (0x3 << 3) +#define OMAP_SYSCLKSEL_SHIFT 0 +#define OMAP_SYSCLKSEL_MASK (0x3 << 0) + +/* PM_EVGENCTRL_MPU */ +#define OMAP_OFFLOADMODE_SHIFT 3 +#define OMAP_OFFLOADMODE_MASK (0x3 << 3) +#define OMAP_ONLOADMODE_SHIFT 1 +#define OMAP_ONLOADMODE_MASK (0x3 << 1) +#define OMAP_ENABLE_MASK (1 << 0) + +/* PRM_RSTTIME */ +/* Named RM_RSTTIME_WKUP on the 24xx */ +#define OMAP_RSTTIME2_SHIFT 8 +#define OMAP_RSTTIME2_MASK (0x1f << 8) +#define OMAP_RSTTIME1_SHIFT 0 +#define OMAP_RSTTIME1_MASK (0xff << 0) + +/* PRM_RSTCTRL */ +/* Named RM_RSTCTRL_WKUP on the 24xx */ +/* 2420 calls RST_DPLL3 'RST_DPLL' */ +#define OMAP_RST_DPLL3_MASK (1 << 2) +#define OMAP_RST_GS_MASK (1 << 1) + + +/* + * Bits common to module-shared registers + * + * Not all registers of a particular type support all of these bits - + * check TRM if you are unsure + */ + +/* + * 24XX: RM_RSTST_MPU and RM_RSTST_DSP - on 24XX, 'COREDOMAINWKUP_RST' is + * called 'COREWKUP_RST' + * + * 3430: RM_RSTST_IVA2, RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSS, + * RM_RSTST_CAM, RM_RSTST_PER, RM_RSTST_NEON + */ +#define OMAP_COREDOMAINWKUP_RST_MASK (1 << 3) + +/* + * 24XX: RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSP + * + * 2430: RM_RSTST_MDM + * + * 3430: RM_RSTST_CORE, RM_RSTST_EMU + */ +#define OMAP_DOMAINWKUP_RST_MASK (1 << 2) + +/* + * 24XX: RM_RSTST_MPU, RM_RSTST_WKUP, RM_RSTST_DSP + * On 24XX, 'GLOBALWARM_RST' is called 'GLOBALWMPU_RST'. + * + * 2430: RM_RSTST_MDM + * + * 3430: RM_RSTST_CORE, RM_RSTST_EMU + */ +#define OMAP_GLOBALWARM_RST_SHIFT 1 +#define OMAP_GLOBALWARM_RST_MASK (1 << 1) +#define OMAP_GLOBALCOLD_RST_SHIFT 0 +#define OMAP_GLOBALCOLD_RST_MASK (1 << 0) + +/* + * 24XX: PM_WKDEP_GFX, PM_WKDEP_MPU, PM_WKDEP_CORE, PM_WKDEP_DSP + * 2420 TRM sometimes uses "EN_WAKEUP" instead of "EN_WKUP" + * + * 2430: PM_WKDEP_MDM + * + * 3430: PM_WKDEP_IVA2, PM_WKDEP_GFX, PM_WKDEP_DSS, PM_WKDEP_CAM, + * PM_WKDEP_PER + */ +#define OMAP_EN_WKUP_SHIFT 4 +#define OMAP_EN_WKUP_MASK (1 << 4) + +/* + * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, + * PM_PWSTCTRL_DSP + * + * 2430: PM_PWSTCTRL_MDM + * + * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, + * PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER, + * PM_PWSTCTRL_NEON + */ +#define OMAP_LOGICRETSTATE_MASK (1 << 2) + + +#endif diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c new file mode 100644 index 000000000..505d685d6 --- /dev/null +++ b/arch/arm/mach-omap2/prm33xx.c @@ -0,0 +1,407 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AM33XX PRM functions + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/reboot.h> + +#include "powerdomain.h" +#include "prm33xx.h" +#include "prm-regbits-33xx.h" + +/* Read a register in a PRM instance */ +static u32 am33xx_prm_read_reg(s16 inst, u16 idx) +{ + return readl_relaxed(prm_base.va + inst + idx); +} + +/* Write into a register in a PRM instance */ +static void am33xx_prm_write_reg(u32 val, s16 inst, u16 idx) +{ + writel_relaxed(val, prm_base.va + inst + idx); +} + +/* Read-modify-write a register in PRM. Caller must lock */ +static u32 am33xx_prm_rmw_reg_bits(u32 mask, u32 bits, s16 inst, s16 idx) +{ + u32 v; + + v = am33xx_prm_read_reg(inst, idx); + v &= ~mask; + v |= bits; + am33xx_prm_write_reg(v, inst, idx); + + return v; +} + +/** + * am33xx_prm_is_hardreset_asserted - read the HW reset line state of + * submodules contained in the hwmod module + * @shift: register bit shift corresponding to the reset line to check + * @part: PRM partition, ignored for AM33xx + * @inst: CM instance register offset (*_INST macro) + * @rstctrl_offs: RM_RSTCTRL register address offset for this module + * + * Returns 1 if the (sub)module hardreset line is currently asserted, + * 0 if the (sub)module hardreset line is not currently asserted, or + * -EINVAL upon parameter error. + */ +static int am33xx_prm_is_hardreset_asserted(u8 shift, u8 part, s16 inst, + u16 rstctrl_offs) +{ + u32 v; + + v = am33xx_prm_read_reg(inst, rstctrl_offs); + v &= 1 << shift; + v >>= shift; + + return v; +} + +/** + * am33xx_prm_assert_hardreset - assert the HW reset line of a submodule + * @shift: register bit shift corresponding to the reset line to assert + * @part: CM partition, ignored for AM33xx + * @inst: CM instance register offset (*_INST macro) + * @rstctrl_reg: RM_RSTCTRL register address for this module + * + * Some IPs like dsp, ipu or iva contain processors that require an HW + * reset line to be asserted / deasserted in order to fully enable the + * IP. These modules may have multiple hard-reset lines that reset + * different 'submodules' inside the IP block. This function will + * place the submodule into reset. Returns 0 upon success or -EINVAL + * upon an argument error. + */ +static int am33xx_prm_assert_hardreset(u8 shift, u8 part, s16 inst, + u16 rstctrl_offs) +{ + u32 mask = 1 << shift; + + am33xx_prm_rmw_reg_bits(mask, mask, inst, rstctrl_offs); + + return 0; +} + +/** + * am33xx_prm_deassert_hardreset - deassert a submodule hardreset line and + * wait + * @shift: register bit shift corresponding to the reset line to deassert + * @st_shift: reset status register bit shift corresponding to the reset line + * @part: PRM partition, not used for AM33xx + * @inst: CM instance register offset (*_INST macro) + * @rstctrl_reg: RM_RSTCTRL register address for this module + * @rstst_reg: RM_RSTST register address for this module + * + * Some IPs like dsp, ipu or iva contain processors that require an HW + * reset line to be asserted / deasserted in order to fully enable the + * IP. These modules may have multiple hard-reset lines that reset + * different 'submodules' inside the IP block. This function will + * take the submodule out of reset and wait until the PRCM indicates + * that the reset has completed before returning. Returns 0 upon success or + * -EINVAL upon an argument error, -EEXIST if the submodule was already out + * of reset, or -EBUSY if the submodule did not exit reset promptly. + */ +static int am33xx_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, + s16 inst, u16 rstctrl_offs, + u16 rstst_offs) +{ + int c; + u32 mask = 1 << st_shift; + + /* Check the current status to avoid de-asserting the line twice */ + if (am33xx_prm_is_hardreset_asserted(shift, 0, inst, rstctrl_offs) == 0) + return -EEXIST; + + /* Clear the reset status by writing 1 to the status bit */ + am33xx_prm_rmw_reg_bits(0xffffffff, mask, inst, rstst_offs); + + /* de-assert the reset control line */ + mask = 1 << shift; + + am33xx_prm_rmw_reg_bits(mask, 0, inst, rstctrl_offs); + + /* wait the status to be set */ + omap_test_timeout(am33xx_prm_is_hardreset_asserted(st_shift, 0, inst, + rstst_offs), + MAX_MODULE_HARDRESET_WAIT, c); + + return (c == MAX_MODULE_HARDRESET_WAIT) ? -EBUSY : 0; +} + +static int am33xx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + am33xx_prm_rmw_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + return 0; +} + +static int am33xx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + v &= OMAP_POWERSTATE_MASK; + v >>= OMAP_POWERSTATE_SHIFT; + + return v; +} + +static int am33xx_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); + v &= OMAP_POWERSTATEST_MASK; + v >>= OMAP_POWERSTATEST_SHIFT; + + return v; +} + +static int am33xx_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm) +{ + am33xx_prm_rmw_reg_bits(AM33XX_LOWPOWERSTATECHANGE_MASK, + (1 << AM33XX_LOWPOWERSTATECHANGE_SHIFT), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + return 0; +} + +static int am33xx_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + am33xx_prm_rmw_reg_bits(AM33XX_LASTPOWERSTATEENTERED_MASK, + AM33XX_LASTPOWERSTATEENTERED_MASK, + pwrdm->prcm_offs, pwrdm->pwrstst_offs); + return 0; +} + +static int am33xx_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) +{ + u32 m; + + m = pwrdm->logicretstate_mask; + if (!m) + return -EINVAL; + + am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + + return 0; +} + +static int am33xx_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); + v &= AM33XX_LOGICSTATEST_MASK; + v >>= AM33XX_LOGICSTATEST_SHIFT; + + return v; +} + +static int am33xx_pwrdm_read_logic_retst(struct powerdomain *pwrdm) +{ + u32 v, m; + + m = pwrdm->logicretstate_mask; + if (!m) + return -EINVAL; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int am33xx_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = pwrdm->mem_on_mask[bank]; + if (!m) + return -EINVAL; + + am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + + return 0; +} + +static int am33xx_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = pwrdm->mem_ret_mask[bank]; + if (!m) + return -EINVAL; + + am33xx_prm_rmw_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + + return 0; +} + +static int am33xx_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = pwrdm->mem_pwrst_mask[bank]; + if (!m) + return -EINVAL; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int am33xx_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = pwrdm->mem_retst_mask[bank]; + if (!m) + return -EINVAL; + + v = am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstctrl_offs); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int am33xx_pwrdm_wait_transition(struct powerdomain *pwrdm) +{ + u32 c = 0; + + /* + * REVISIT: pwrdm_wait_transition() may be better implemented + * via a callback and a periodic timer check -- how long do we expect + * powerdomain transitions to take? + */ + + /* XXX Is this udelay() value meaningful? */ + while ((am33xx_prm_read_reg(pwrdm->prcm_offs, pwrdm->pwrstst_offs) + & OMAP_INTRANSITION_MASK) && + (c++ < PWRDM_TRANSITION_BAILOUT)) + udelay(1); + + if (c > PWRDM_TRANSITION_BAILOUT) { + pr_err("powerdomain: %s: waited too long to complete transition\n", + pwrdm->name); + return -EAGAIN; + } + + pr_debug("powerdomain: completed transition in %d loops\n", c); + + return 0; +} + +static int am33xx_check_vcvp(void) +{ + /* No VC/VP on am33xx devices */ + return 0; +} + +/** + * am33xx_prm_global_warm_sw_reset - reboot the device via warm reset + * + * Immediately reboots the device through warm reset. + */ +static void am33xx_prm_global_sw_reset(void) +{ + /* + * Historically AM33xx performed warm reset for all requested reboot_mode. + * Keep this behaviour unchanged for all except newly added REBOOT_COLD. + */ + u32 mask = AM33XX_RST_GLOBAL_WARM_SW_MASK; + + if (prm_reboot_mode == REBOOT_COLD) + mask = AM33XX_RST_GLOBAL_COLD_SW_MASK; + + am33xx_prm_rmw_reg_bits(mask, + mask, + AM33XX_PRM_DEVICE_MOD, + AM33XX_PRM_RSTCTRL_OFFSET); + + /* OCP barrier */ + (void)am33xx_prm_read_reg(AM33XX_PRM_DEVICE_MOD, + AM33XX_PRM_RSTCTRL_OFFSET); +} + +static void am33xx_pwrdm_save_context(struct powerdomain *pwrdm) +{ + pwrdm->context = am33xx_prm_read_reg(pwrdm->prcm_offs, + pwrdm->pwrstctrl_offs); + /* + * Do not save LOWPOWERSTATECHANGE, writing a 1 indicates a request, + * reading back a 1 indicates a request in progress. + */ + pwrdm->context &= ~AM33XX_LOWPOWERSTATECHANGE_MASK; +} + +static void am33xx_pwrdm_restore_context(struct powerdomain *pwrdm) +{ + int st, ctrl; + + st = am33xx_prm_read_reg(pwrdm->prcm_offs, + pwrdm->pwrstst_offs); + + am33xx_prm_write_reg(pwrdm->context, pwrdm->prcm_offs, + pwrdm->pwrstctrl_offs); + + /* Make sure we only wait for a transition if there is one */ + st &= OMAP_POWERSTATEST_MASK; + ctrl = OMAP_POWERSTATEST_MASK & pwrdm->context; + + if (st != ctrl) + am33xx_pwrdm_wait_transition(pwrdm); +} + +struct pwrdm_ops am33xx_pwrdm_operations = { + .pwrdm_set_next_pwrst = am33xx_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = am33xx_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = am33xx_pwrdm_read_pwrst, + .pwrdm_set_logic_retst = am33xx_pwrdm_set_logic_retst, + .pwrdm_read_logic_pwrst = am33xx_pwrdm_read_logic_pwrst, + .pwrdm_read_logic_retst = am33xx_pwrdm_read_logic_retst, + .pwrdm_clear_all_prev_pwrst = am33xx_pwrdm_clear_all_prev_pwrst, + .pwrdm_set_lowpwrstchange = am33xx_pwrdm_set_lowpwrstchange, + .pwrdm_read_mem_pwrst = am33xx_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = am33xx_pwrdm_read_mem_retst, + .pwrdm_set_mem_onst = am33xx_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = am33xx_pwrdm_set_mem_retst, + .pwrdm_wait_transition = am33xx_pwrdm_wait_transition, + .pwrdm_has_voltdm = am33xx_check_vcvp, + .pwrdm_save_context = am33xx_pwrdm_save_context, + .pwrdm_restore_context = am33xx_pwrdm_restore_context, +}; + +static struct prm_ll_data am33xx_prm_ll_data = { + .assert_hardreset = am33xx_prm_assert_hardreset, + .deassert_hardreset = am33xx_prm_deassert_hardreset, + .is_hardreset_asserted = am33xx_prm_is_hardreset_asserted, + .reset_system = am33xx_prm_global_sw_reset, +}; + +int __init am33xx_prm_init(const struct omap_prcm_init_data *data) +{ + return prm_register(&am33xx_prm_ll_data); +} + +static void __exit am33xx_prm_exit(void) +{ + prm_unregister(&am33xx_prm_ll_data); +} +__exitcall(am33xx_prm_exit); diff --git a/arch/arm/mach-omap2/prm33xx.h b/arch/arm/mach-omap2/prm33xx.h new file mode 100644 index 000000000..3081f3deb --- /dev/null +++ b/arch/arm/mach-omap2/prm33xx.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * AM33XX PRM instance offset macros + * + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRM33XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM33XX_H + +#include "prcm-common.h" +#include "prm.h" + +#define AM33XX_PRM_BASE 0x44E00000 + +#define AM33XX_PRM_REGADDR(inst, reg) \ + AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRM_BASE + (inst) + (reg)) + + +/* PRM instances */ +#define AM33XX_PRM_OCP_SOCKET_MOD 0x0B00 +#define AM33XX_PRM_PER_MOD 0x0C00 +#define AM33XX_PRM_WKUP_MOD 0x0D00 +#define AM33XX_PRM_MPU_MOD 0x0E00 +#define AM33XX_PRM_DEVICE_MOD 0x0F00 +#define AM33XX_PRM_RTC_MOD 0x1000 +#define AM33XX_PRM_GFX_MOD 0x1100 +#define AM33XX_PRM_CEFUSE_MOD 0x1200 + +/* PRM.PER_PRM register offsets */ +#define AM33XX_PM_PER_PWRSTST_OFFSET 0x0008 +#define AM33XX_PM_PER_PWRSTST AM33XX_PRM_REGADDR(AM33XX_PRM_PER_MOD, 0x0008) +#define AM33XX_PM_PER_PWRSTCTRL_OFFSET 0x000c +#define AM33XX_PM_PER_PWRSTCTRL AM33XX_PRM_REGADDR(AM33XX_PRM_PER_MOD, 0x000c) + +/* PRM.WKUP_PRM register offsets */ +#define AM33XX_PM_WKUP_PWRSTCTRL_OFFSET 0x0004 +#define AM33XX_PM_WKUP_PWRSTCTRL AM33XX_PRM_REGADDR(AM33XX_PRM_WKUP_MOD, 0x0004) +#define AM33XX_PM_WKUP_PWRSTST_OFFSET 0x0008 +#define AM33XX_PM_WKUP_PWRSTST AM33XX_PRM_REGADDR(AM33XX_PRM_WKUP_MOD, 0x0008) + +/* PRM.MPU_PRM register offsets */ +#define AM33XX_PM_MPU_PWRSTCTRL_OFFSET 0x0000 +#define AM33XX_PM_MPU_PWRSTCTRL AM33XX_PRM_REGADDR(AM33XX_PRM_MPU_MOD, 0x0000) +#define AM33XX_PM_MPU_PWRSTST_OFFSET 0x0004 +#define AM33XX_PM_MPU_PWRSTST AM33XX_PRM_REGADDR(AM33XX_PRM_MPU_MOD, 0x0004) + +/* PRM.DEVICE_PRM register offsets */ +#define AM33XX_PRM_RSTCTRL_OFFSET 0x0000 +#define AM33XX_PRM_RSTCTRL AM33XX_PRM_REGADDR(AM33XX_PRM_DEVICE_MOD, 0x0000) + +/* PRM.RTC_PRM register offsets */ +#define AM33XX_PM_RTC_PWRSTCTRL_OFFSET 0x0000 +#define AM33XX_PM_RTC_PWRSTCTRL AM33XX_PRM_REGADDR(AM33XX_PRM_RTC_MOD, 0x0000) +#define AM33XX_PM_RTC_PWRSTST_OFFSET 0x0004 +#define AM33XX_PM_RTC_PWRSTST AM33XX_PRM_REGADDR(AM33XX_PRM_RTC_MOD, 0x0004) + +/* PRM.GFX_PRM register offsets */ +#define AM33XX_PM_GFX_PWRSTCTRL_OFFSET 0x0000 +#define AM33XX_PM_GFX_PWRSTCTRL AM33XX_PRM_REGADDR(AM33XX_PRM_GFX_MOD, 0x0000) +#define AM33XX_PM_GFX_PWRSTST_OFFSET 0x0010 +#define AM33XX_PM_GFX_PWRSTST AM33XX_PRM_REGADDR(AM33XX_PRM_GFX_MOD, 0x0010) + +/* PRM.CEFUSE_PRM register offsets */ +#define AM33XX_PM_CEFUSE_PWRSTCTRL_OFFSET 0x0000 +#define AM33XX_PM_CEFUSE_PWRSTCTRL AM33XX_PRM_REGADDR(AM33XX_PRM_CEFUSE_MOD, 0x0000) +#define AM33XX_PM_CEFUSE_PWRSTST_OFFSET 0x0004 +#define AM33XX_PM_CEFUSE_PWRSTST AM33XX_PRM_REGADDR(AM33XX_PRM_CEFUSE_MOD, 0x0004) + +#ifndef __ASSEMBLER__ +int am33xx_prm_init(const struct omap_prcm_init_data *data); + +#endif /* ASSEMBLER */ +#endif diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c new file mode 100644 index 000000000..1b5d08f59 --- /dev/null +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -0,0 +1,727 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3xxx PRM module functions + * + * Copyright (C) 2010-2012 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * Benoît Cousson + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/of_irq.h> + +#include "soc.h" +#include "common.h" +#include "vp.h" +#include "powerdomain.h" +#include "prm3xxx.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "prm-regbits-34xx.h" +#include "cm3xxx.h" +#include "cm-regbits-34xx.h" +#include "clock.h" + +static void omap3xxx_prm_read_pending_irqs(unsigned long *events); +static void omap3xxx_prm_ocp_barrier(void); +static void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask); +static void omap3xxx_prm_restore_irqen(u32 *saved_mask); +static void omap3xxx_prm_iva_idle(void); + +static const struct omap_prcm_irq omap3_prcm_irqs[] = { + OMAP_PRCM_IRQ("wkup", 0, 0), + OMAP_PRCM_IRQ("io", 9, 1), +}; + +static struct omap_prcm_irq_setup omap3_prcm_irq_setup = { + .ack = OMAP3_PRM_IRQSTATUS_MPU_OFFSET, + .mask = OMAP3_PRM_IRQENABLE_MPU_OFFSET, + .nr_regs = 1, + .irqs = omap3_prcm_irqs, + .nr_irqs = ARRAY_SIZE(omap3_prcm_irqs), + .irq = 11 + OMAP_INTC_START, + .read_pending_irqs = &omap3xxx_prm_read_pending_irqs, + .ocp_barrier = &omap3xxx_prm_ocp_barrier, + .save_and_clear_irqen = &omap3xxx_prm_save_and_clear_irqen, + .restore_irqen = &omap3xxx_prm_restore_irqen, + .reconfigure_io_chain = NULL, +}; + +/* + * omap3_prm_reset_src_map - map from bits in the PRM_RSTST hardware + * register (which are specific to OMAP3xxx SoCs) to reset source ID + * bit shifts (which is an OMAP SoC-independent enumeration) + */ +static struct prm_reset_src_map omap3xxx_prm_reset_src_map[] = { + { OMAP3430_GLOBAL_COLD_RST_SHIFT, OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT }, + { OMAP3430_GLOBAL_SW_RST_SHIFT, OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT }, + { OMAP3430_SECURITY_VIOL_RST_SHIFT, OMAP_SECU_VIOL_RST_SRC_ID_SHIFT }, + { OMAP3430_MPU_WD_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP3430_SECURE_WD_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP3430_EXTERNAL_WARM_RST_SHIFT, OMAP_EXTWARM_RST_SRC_ID_SHIFT }, + { OMAP3430_VDD1_VOLTAGE_MANAGER_RST_SHIFT, + OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT }, + { OMAP3430_VDD2_VOLTAGE_MANAGER_RST_SHIFT, + OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT }, + { OMAP3430_ICEPICK_RST_SHIFT, OMAP_ICEPICK_RST_SRC_ID_SHIFT }, + { OMAP3430_ICECRUSHER_RST_SHIFT, OMAP_ICECRUSHER_RST_SRC_ID_SHIFT }, + { -1, -1 }, +}; + +/* PRM VP */ + +/* + * struct omap3_vp - OMAP3 VP register access description. + * @tranxdone_status: VP_TRANXDONE_ST bitmask in PRM_IRQSTATUS_MPU reg + */ +struct omap3_vp { + u32 tranxdone_status; +}; + +static struct omap3_vp omap3_vp[] = { + [OMAP3_VP_VDD_MPU_ID] = { + .tranxdone_status = OMAP3430_VP1_TRANXDONE_ST_MASK, + }, + [OMAP3_VP_VDD_CORE_ID] = { + .tranxdone_status = OMAP3430_VP2_TRANXDONE_ST_MASK, + }, +}; + +#define MAX_VP_ID ARRAY_SIZE(omap3_vp); + +static u32 omap3_prm_vp_check_txdone(u8 vp_id) +{ + struct omap3_vp *vp = &omap3_vp[vp_id]; + u32 irqstatus; + + irqstatus = omap2_prm_read_mod_reg(OCP_MOD, + OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + return irqstatus & vp->tranxdone_status; +} + +static void omap3_prm_vp_clear_txdone(u8 vp_id) +{ + struct omap3_vp *vp = &omap3_vp[vp_id]; + + omap2_prm_write_mod_reg(vp->tranxdone_status, + OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); +} + +u32 omap3_prm_vcvp_read(u8 offset) +{ + return omap2_prm_read_mod_reg(OMAP3430_GR_MOD, offset); +} + +void omap3_prm_vcvp_write(u32 val, u8 offset) +{ + omap2_prm_write_mod_reg(val, OMAP3430_GR_MOD, offset); +} + +u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset) +{ + return omap2_prm_rmw_mod_reg_bits(mask, bits, OMAP3430_GR_MOD, offset); +} + +/** + * omap3xxx_prm_dpll3_reset - use DPLL3 reset to reboot the OMAP SoC + * + * Set the DPLL3 reset bit, which should reboot the SoC. This is the + * recommended way to restart the SoC, considering Errata i520. No + * return value. + */ +static void omap3xxx_prm_dpll3_reset(void) +{ + omap2_prm_set_mod_reg_bits(OMAP_RST_DPLL3_MASK, OMAP3430_GR_MOD, + OMAP2_RM_RSTCTRL); + /* OCP barrier */ + omap2_prm_read_mod_reg(OMAP3430_GR_MOD, OMAP2_RM_RSTCTRL); +} + +/** + * omap3xxx_prm_read_pending_irqs - read pending PRM MPU IRQs into @events + * @events: ptr to a u32, preallocated by caller + * + * Read PRM_IRQSTATUS_MPU bits, AND'ed with the currently-enabled PRM + * MPU IRQs, and store the result into the u32 pointed to by @events. + * No return value. + */ +static void omap3xxx_prm_read_pending_irqs(unsigned long *events) +{ + u32 mask, st; + + /* XXX Can the mask read be avoided (e.g., can it come from RAM?) */ + mask = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); + st = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + + events[0] = mask & st; +} + +/** + * omap3xxx_prm_ocp_barrier - force buffered MPU writes to the PRM to complete + * + * Force any buffered writes to the PRM IP block to complete. Needed + * by the PRM IRQ handler, which reads and writes directly to the IP + * block, to avoid race conditions after acknowledging or clearing IRQ + * bits. No return value. + */ +static void omap3xxx_prm_ocp_barrier(void) +{ + omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET); +} + +/** + * omap3xxx_prm_save_and_clear_irqen - save/clear PRM_IRQENABLE_MPU reg + * @saved_mask: ptr to a u32 array to save IRQENABLE bits + * + * Save the PRM_IRQENABLE_MPU register to @saved_mask. @saved_mask + * must be allocated by the caller. Intended to be used in the PRM + * interrupt handler suspend callback. The OCP barrier is needed to + * ensure the write to disable PRM interrupts reaches the PRM before + * returning; otherwise, spurious interrupts might occur. No return + * value. + */ +static void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask) +{ + saved_mask[0] = omap2_prm_read_mod_reg(OCP_MOD, + OMAP3_PRM_IRQENABLE_MPU_OFFSET); + omap2_prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); + + /* OCP barrier */ + omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET); +} + +/** + * omap3xxx_prm_restore_irqen - set PRM_IRQENABLE_MPU register from args + * @saved_mask: ptr to a u32 array of IRQENABLE bits saved previously + * + * Restore the PRM_IRQENABLE_MPU register from @saved_mask. Intended + * to be used in the PRM interrupt handler resume callback to restore + * values saved by omap3xxx_prm_save_and_clear_irqen(). No OCP + * barrier should be needed here; any pending PRM interrupts will fire + * once the writes reach the PRM. No return value. + */ +static void omap3xxx_prm_restore_irqen(u32 *saved_mask) +{ + omap2_prm_write_mod_reg(saved_mask[0], OCP_MOD, + OMAP3_PRM_IRQENABLE_MPU_OFFSET); +} + +/** + * omap3xxx_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt + * @module: PRM module to clear wakeups from + * @regs: register set to clear, 1 or 3 + * @wkst_mask: wkst bits to clear + * + * The purpose of this function is to clear any wake-up events latched + * in the PRCM PM_WKST_x registers. It is possible that a wake-up event + * may occur whilst attempting to clear a PM_WKST_x register and thus + * set another bit in this register. A while loop is used to ensure + * that any peripheral wake-up events occurring while attempting to + * clear the PM_WKST_x are detected and cleared. + */ +static int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask) +{ + u32 wkst, fclk, iclk, clken; + u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1; + u16 fclk_off = (regs == 3) ? OMAP3430ES2_CM_FCLKEN3 : CM_FCLKEN1; + u16 iclk_off = (regs == 3) ? CM_ICLKEN3 : CM_ICLKEN1; + u16 grpsel_off = (regs == 3) ? + OMAP3430ES2_PM_MPUGRPSEL3 : OMAP3430_PM_MPUGRPSEL; + int c = 0; + + wkst = omap2_prm_read_mod_reg(module, wkst_off); + wkst &= omap2_prm_read_mod_reg(module, grpsel_off); + wkst &= wkst_mask; + if (wkst) { + iclk = omap2_cm_read_mod_reg(module, iclk_off); + fclk = omap2_cm_read_mod_reg(module, fclk_off); + while (wkst) { + clken = wkst; + omap2_cm_set_mod_reg_bits(clken, module, iclk_off); + /* + * For USBHOST, we don't know whether HOST1 or + * HOST2 woke us up, so enable both f-clocks + */ + if (module == OMAP3430ES2_USBHOST_MOD) + clken |= 1 << OMAP3430ES2_EN_USBHOST2_SHIFT; + omap2_cm_set_mod_reg_bits(clken, module, fclk_off); + omap2_prm_write_mod_reg(wkst, module, wkst_off); + wkst = omap2_prm_read_mod_reg(module, wkst_off); + wkst &= wkst_mask; + c++; + } + omap2_cm_write_mod_reg(iclk, module, iclk_off); + omap2_cm_write_mod_reg(fclk, module, fclk_off); + } + + return c; +} + +/** + * omap3_prm_reset_modem - toggle reset signal for modem + * + * Toggles the reset signal to modem IP block. Required to allow + * OMAP3430 without stacked modem to idle properly. + */ +static void __init omap3_prm_reset_modem(void) +{ + omap2_prm_write_mod_reg( + OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON_MASK | + OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST_MASK, + CORE_MOD, OMAP2_RM_RSTCTRL); + omap2_prm_write_mod_reg(0, CORE_MOD, OMAP2_RM_RSTCTRL); +} + +/** + * omap3_prm_init_pm - initialize PM related registers for PRM + * @has_uart4: SoC has UART4 + * @has_iva: SoC has IVA + * + * Initializes PRM registers for PM use. Called from PM init. + */ +void __init omap3_prm_init_pm(bool has_uart4, bool has_iva) +{ + u32 en_uart4_mask; + u32 grpsel_uart4_mask; + + /* + * Enable control of expternal oscillator through + * sys_clkreq. In the long run clock framework should + * take care of this. + */ + omap2_prm_rmw_mod_reg_bits(OMAP_AUTOEXTCLKMODE_MASK, + 1 << OMAP_AUTOEXTCLKMODE_SHIFT, + OMAP3430_GR_MOD, + OMAP3_PRM_CLKSRC_CTRL_OFFSET); + + /* setup wakup source */ + omap2_prm_write_mod_reg(OMAP3430_EN_IO_MASK | OMAP3430_EN_GPIO1_MASK | + OMAP3430_EN_GPT1_MASK | OMAP3430_EN_GPT12_MASK, + WKUP_MOD, PM_WKEN); + /* No need to write EN_IO, that is always enabled */ + omap2_prm_write_mod_reg(OMAP3430_GRPSEL_GPIO1_MASK | + OMAP3430_GRPSEL_GPT1_MASK | + OMAP3430_GRPSEL_GPT12_MASK, + WKUP_MOD, OMAP3430_PM_MPUGRPSEL); + + /* Enable PM_WKEN to support DSS LPR */ + omap2_prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS_MASK, + OMAP3430_DSS_MOD, PM_WKEN); + + if (has_uart4) { + en_uart4_mask = OMAP3630_EN_UART4_MASK; + grpsel_uart4_mask = OMAP3630_GRPSEL_UART4_MASK; + } else { + en_uart4_mask = 0; + grpsel_uart4_mask = 0; + } + + /* Enable wakeups in PER */ + omap2_prm_write_mod_reg(en_uart4_mask | + OMAP3430_EN_GPIO2_MASK | + OMAP3430_EN_GPIO3_MASK | + OMAP3430_EN_GPIO4_MASK | + OMAP3430_EN_GPIO5_MASK | + OMAP3430_EN_GPIO6_MASK | + OMAP3430_EN_UART3_MASK | + OMAP3430_EN_MCBSP2_MASK | + OMAP3430_EN_MCBSP3_MASK | + OMAP3430_EN_MCBSP4_MASK, + OMAP3430_PER_MOD, PM_WKEN); + + /* and allow them to wake up MPU */ + omap2_prm_write_mod_reg(grpsel_uart4_mask | + OMAP3430_GRPSEL_GPIO2_MASK | + OMAP3430_GRPSEL_GPIO3_MASK | + OMAP3430_GRPSEL_GPIO4_MASK | + OMAP3430_GRPSEL_GPIO5_MASK | + OMAP3430_GRPSEL_GPIO6_MASK | + OMAP3430_GRPSEL_UART3_MASK | + OMAP3430_GRPSEL_MCBSP2_MASK | + OMAP3430_GRPSEL_MCBSP3_MASK | + OMAP3430_GRPSEL_MCBSP4_MASK, + OMAP3430_PER_MOD, OMAP3430_PM_MPUGRPSEL); + + /* Don't attach IVA interrupts */ + if (has_iva) { + omap2_prm_write_mod_reg(0, WKUP_MOD, OMAP3430_PM_IVAGRPSEL); + omap2_prm_write_mod_reg(0, CORE_MOD, OMAP3430_PM_IVAGRPSEL1); + omap2_prm_write_mod_reg(0, CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3); + omap2_prm_write_mod_reg(0, OMAP3430_PER_MOD, + OMAP3430_PM_IVAGRPSEL); + } + + /* Clear any pending 'reset' flags */ + omap2_prm_write_mod_reg(0xffffffff, MPU_MOD, OMAP2_RM_RSTST); + omap2_prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP2_RM_RSTST); + omap2_prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, OMAP2_RM_RSTST); + omap2_prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, OMAP2_RM_RSTST); + omap2_prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, OMAP2_RM_RSTST); + omap2_prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, OMAP2_RM_RSTST); + omap2_prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, + OMAP2_RM_RSTST); + + /* Clear any pending PRCM interrupts */ + omap2_prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + + /* We need to idle iva2_pwrdm even on am3703 with no iva2. */ + omap3xxx_prm_iva_idle(); + + omap3_prm_reset_modem(); +} + +/** + * omap3430_pre_es3_1_reconfigure_io_chain - restart wake-up daisy chain + * + * The ST_IO_CHAIN bit does not exist in 3430 before es3.1. The only + * thing we can do is toggle EN_IO bit for earlier omaps. + */ +static void omap3430_pre_es3_1_reconfigure_io_chain(void) +{ + omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, + PM_WKEN); + omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, + PM_WKEN); + omap2_prm_read_mod_reg(WKUP_MOD, PM_WKEN); +} + +/** + * omap3_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain + * + * Clear any previously-latched I/O wakeup events and ensure that the + * I/O wakeup gates are aligned with the current mux settings. Works + * by asserting WUCLKIN, waiting for WUCLKOUT to be asserted, and then + * deasserting WUCLKIN and clearing the ST_IO_CHAIN WKST bit. No + * return value. These registers are only available in 3430 es3.1 and later. + */ +static void omap3_prm_reconfigure_io_chain(void) +{ + int i = 0; + + omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD, + PM_WKEN); + + omap_test_timeout(omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST) & + OMAP3430_ST_IO_CHAIN_MASK, + MAX_IOPAD_LATCH_TIME, i); + if (i == MAX_IOPAD_LATCH_TIME) + pr_warn("PRM: I/O chain clock line assertion timed out\n"); + + omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD, + PM_WKEN); + + omap2_prm_set_mod_reg_bits(OMAP3430_ST_IO_CHAIN_MASK, WKUP_MOD, + PM_WKST); + + omap2_prm_read_mod_reg(WKUP_MOD, PM_WKST); +} + +/** + * omap3xxx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches + * + * Activates the I/O wakeup event latches and allows events logged by + * those latches to signal a wakeup event to the PRCM. For I/O + * wakeups to occur, WAKEUPENABLE bits must be set in the pad mux + * registers, and omap3xxx_prm_reconfigure_io_chain() must be called. + * No return value. + */ +static void omap3xxx_prm_enable_io_wakeup(void) +{ + if (prm_features & PRM_HAS_IO_WAKEUP) + omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, + PM_WKEN); +} + +/** + * omap3xxx_prm_read_reset_sources - return the last SoC reset source + * + * Return a u32 representing the last reset sources of the SoC. The + * returned reset source bits are standardized across OMAP SoCs. + */ +static u32 omap3xxx_prm_read_reset_sources(void) +{ + struct prm_reset_src_map *p; + u32 r = 0; + u32 v; + + v = omap2_prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST); + + p = omap3xxx_prm_reset_src_map; + while (p->reg_shift >= 0 && p->std_shift >= 0) { + if (v & (1 << p->reg_shift)) + r |= 1 << p->std_shift; + p++; + } + + return r; +} + +/** + * omap3xxx_prm_iva_idle - ensure IVA is in idle so it can be put into retention + * + * In cases where IVA2 is activated by bootcode, it may prevent + * full-chip retention or off-mode because it is not idle. This + * function forces the IVA2 into idle state so it can go + * into retention/off and thus allow full-chip retention/off. + */ +static void omap3xxx_prm_iva_idle(void) +{ + /* ensure IVA2 clock is disabled */ + omap2_cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN); + + /* if no clock activity, nothing else to do */ + if (!(omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKSTST) & + OMAP3430_CLKACTIVITY_IVA2_MASK)) + return; + + /* Reset IVA2 */ + omap2_prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK | + OMAP3430_RST2_IVA2_MASK | + OMAP3430_RST3_IVA2_MASK, + OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); + + /* Enable IVA2 clock */ + omap2_cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_MASK, + OMAP3430_IVA2_MOD, CM_FCLKEN); + + /* Un-reset IVA2 */ + omap2_prm_write_mod_reg(0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); + + /* Disable IVA2 clock */ + omap2_cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN); + + /* Reset IVA2 */ + omap2_prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK | + OMAP3430_RST2_IVA2_MASK | + OMAP3430_RST3_IVA2_MASK, + OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); +} + +/** + * omap3xxx_prm_clear_global_cold_reset - checks the global cold reset status + * and clears it if asserted + * + * Checks if cold-reset has occurred and clears the status bit if yes. Returns + * 1 if cold-reset has occurred, 0 otherwise. + */ +int omap3xxx_prm_clear_global_cold_reset(void) +{ + if (omap2_prm_read_mod_reg(OMAP3430_GR_MOD, OMAP3_PRM_RSTST_OFFSET) & + OMAP3430_GLOBAL_COLD_RST_MASK) { + omap2_prm_set_mod_reg_bits(OMAP3430_GLOBAL_COLD_RST_MASK, + OMAP3430_GR_MOD, + OMAP3_PRM_RSTST_OFFSET); + return 1; + } + + return 0; +} + +void omap3_prm_save_scratchpad_contents(u32 *ptr) +{ + *ptr++ = omap2_prm_read_mod_reg(OMAP3430_GR_MOD, + OMAP3_PRM_CLKSRC_CTRL_OFFSET); + + *ptr++ = omap2_prm_read_mod_reg(OMAP3430_GR_MOD, + OMAP3_PRM_CLKSEL_OFFSET); +} + +/* Powerdomain low-level functions */ + +static int omap3_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); + return 0; +} + +static int omap3_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP_POWERSTATE_MASK); +} + +static int omap3_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP_POWERSTATEST_MASK); +} + +/* Applicable only for OMAP3. Not supported on OMAP2 */ +static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, + OMAP3430_LASTPOWERSTATEENTERED_MASK); +} + +static int omap3_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP3430_LOGICSTATEST_MASK); +} + +static int omap3_pwrdm_read_logic_retst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP3430_LOGICSTATEST_MASK); +} + +static int omap3_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, + OMAP3430_LASTLOGICSTATEENTERED_MASK); +} + +static int omap3_get_mem_bank_lastmemst_mask(u8 bank) +{ + switch (bank) { + case 0: + return OMAP3430_LASTMEM1STATEENTERED_MASK; + case 1: + return OMAP3430_LASTMEM2STATEENTERED_MASK; + case 2: + return OMAP3430_LASTSHAREDL2CACHEFLATSTATEENTERED_MASK; + case 3: + return OMAP3430_LASTL2FLATMEMSTATEENTERED_MASK; + default: + WARN_ON(1); /* should never happen */ + return -EEXIST; + } + return 0; +} + +static int omap3_pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m; + + m = omap3_get_mem_bank_lastmemst_mask(bank); + + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, m); +} + +static int omap3_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + omap2_prm_write_mod_reg(0, pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST); + return 0; +} + +static int omap3_pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm) +{ + return omap2_prm_rmw_mod_reg_bits(0, + 1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); +} + +static int omap3_pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm) +{ + return omap2_prm_rmw_mod_reg_bits(1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, + 0, pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); +} + +struct pwrdm_ops omap3_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap3_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap3_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap3_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = omap3_pwrdm_read_prev_pwrst, + .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, + .pwrdm_read_logic_pwrst = omap3_pwrdm_read_logic_pwrst, + .pwrdm_read_logic_retst = omap3_pwrdm_read_logic_retst, + .pwrdm_read_prev_logic_pwrst = omap3_pwrdm_read_prev_logic_pwrst, + .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, + .pwrdm_read_mem_pwrst = omap2_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = omap2_pwrdm_read_mem_retst, + .pwrdm_read_prev_mem_pwrst = omap3_pwrdm_read_prev_mem_pwrst, + .pwrdm_clear_all_prev_pwrst = omap3_pwrdm_clear_all_prev_pwrst, + .pwrdm_enable_hdwr_sar = omap3_pwrdm_enable_hdwr_sar, + .pwrdm_disable_hdwr_sar = omap3_pwrdm_disable_hdwr_sar, + .pwrdm_wait_transition = omap2_pwrdm_wait_transition, +}; + +/* + * + */ + +static int omap3xxx_prm_late_init(void); + +static struct prm_ll_data omap3xxx_prm_ll_data = { + .read_reset_sources = &omap3xxx_prm_read_reset_sources, + .late_init = &omap3xxx_prm_late_init, + .assert_hardreset = &omap2_prm_assert_hardreset, + .deassert_hardreset = &omap2_prm_deassert_hardreset, + .is_hardreset_asserted = &omap2_prm_is_hardreset_asserted, + .reset_system = &omap3xxx_prm_dpll3_reset, + .clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs, + .vp_check_txdone = &omap3_prm_vp_check_txdone, + .vp_clear_txdone = &omap3_prm_vp_clear_txdone, +}; + +int __init omap3xxx_prm_init(const struct omap_prcm_init_data *data) +{ + omap2_clk_legacy_provider_init(TI_CLKM_PRM, + prm_base.va + OMAP3430_IVA2_MOD); + if (omap3_has_io_wakeup()) + prm_features |= PRM_HAS_IO_WAKEUP; + + return prm_register(&omap3xxx_prm_ll_data); +} + +static const struct of_device_id omap3_prm_dt_match_table[] = { + { .compatible = "ti,omap3-prm" }, + { } +}; + +static int omap3xxx_prm_late_init(void) +{ + struct device_node *np; + int irq_num; + + if (!(prm_features & PRM_HAS_IO_WAKEUP)) + return 0; + + if (omap3_has_io_chain_ctrl()) + omap3_prcm_irq_setup.reconfigure_io_chain = + omap3_prm_reconfigure_io_chain; + else + omap3_prcm_irq_setup.reconfigure_io_chain = + omap3430_pre_es3_1_reconfigure_io_chain; + + np = of_find_matching_node(NULL, omap3_prm_dt_match_table); + if (!np) { + pr_err("PRM: no device tree node for interrupt?\n"); + + return -ENODEV; + } + + irq_num = of_irq_get(np, 0); + of_node_put(np); + if (irq_num == -EPROBE_DEFER) + return irq_num; + + omap3_prcm_irq_setup.irq = irq_num; + + omap3xxx_prm_enable_io_wakeup(); + + return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup); +} + +static void __exit omap3xxx_prm_exit(void) +{ + prm_unregister(&omap3xxx_prm_ll_data); +} +__exitcall(omap3xxx_prm_exit); diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h new file mode 100644 index 000000000..ab899e461 --- /dev/null +++ b/arch/arm/mach-omap2/prm3xxx.h @@ -0,0 +1,148 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP3xxx Power/Reset Management (PRM) register definitions + * + * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * Paul Walmsley + * + * The PRM hardware modules on the OMAP2/3 are quite similar to each + * other. The PRM on OMAP4 has a new register layout, and is handled + * in a separate file. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM3XXX_H +#define __ARCH_ARM_MACH_OMAP2_PRM3XXX_H + +#include "prcm-common.h" +#include "prm.h" +#include "prm2xxx_3xxx.h" + +#define OMAP34XX_PRM_REGADDR(module, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE + (module) + (reg)) + + +/* + * OMAP3-specific global PRM registers + * Use {read,write}l_relaxed() with these registers. + * + * With a few exceptions, these are the register names beginning with + * PRM_* on 34xx. (The exceptions are the IRQSTATUS and IRQENABLE + * bits.) + */ + +#define OMAP3_PRM_REVISION_OFFSET 0x0004 +#define OMAP3430_PRM_REVISION OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0004) +#define OMAP3_PRM_SYSCONFIG_OFFSET 0x0014 +#define OMAP3430_PRM_SYSCONFIG OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0014) + +#define OMAP3_PRM_IRQSTATUS_MPU_OFFSET 0x0018 +#define OMAP3430_PRM_IRQSTATUS_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP3_PRM_IRQENABLE_MPU_OFFSET 0x001c +#define OMAP3430_PRM_IRQENABLE_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x001c) + + +#define OMAP3_PRM_VC_SMPS_SA_OFFSET 0x0020 +#define OMAP3430_PRM_VC_SMPS_SA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0020) +#define OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET 0x0024 +#define OMAP3430_PRM_VC_SMPS_VOL_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0024) +#define OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET 0x0028 +#define OMAP3430_PRM_VC_SMPS_CMD_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0028) +#define OMAP3_PRM_VC_CMD_VAL_0_OFFSET 0x002c +#define OMAP3430_PRM_VC_CMD_VAL_0 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x002c) +#define OMAP3_PRM_VC_CMD_VAL_1_OFFSET 0x0030 +#define OMAP3430_PRM_VC_CMD_VAL_1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0030) +#define OMAP3_PRM_VC_CH_CONF_OFFSET 0x0034 +#define OMAP3430_PRM_VC_CH_CONF OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0034) +#define OMAP3_PRM_VC_I2C_CFG_OFFSET 0x0038 +#define OMAP3430_PRM_VC_I2C_CFG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0038) +#define OMAP3_PRM_VC_BYPASS_VAL_OFFSET 0x003c +#define OMAP3430_PRM_VC_BYPASS_VAL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x003c) +#define OMAP3_PRM_RSTCTRL_OFFSET 0x0050 +#define OMAP3430_PRM_RSTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0050) +#define OMAP3_PRM_RSTTIME_OFFSET 0x0054 +#define OMAP3430_PRM_RSTTIME OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0054) +#define OMAP3_PRM_RSTST_OFFSET 0x0058 +#define OMAP3430_PRM_RSTST OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0058) +#define OMAP3_PRM_VOLTCTRL_OFFSET 0x0060 +#define OMAP3430_PRM_VOLTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0060) +#define OMAP3_PRM_SRAM_PCHARGE_OFFSET 0x0064 +#define OMAP3430_PRM_SRAM_PCHARGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0064) +#define OMAP3_PRM_CLKSRC_CTRL_OFFSET 0x0070 +#define OMAP3430_PRM_CLKSRC_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0070) +#define OMAP3_PRM_VOLTSETUP1_OFFSET 0x0090 +#define OMAP3430_PRM_VOLTSETUP1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0090) +#define OMAP3_PRM_VOLTOFFSET_OFFSET 0x0094 +#define OMAP3430_PRM_VOLTOFFSET OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0094) +#define OMAP3_PRM_CLKSETUP_OFFSET 0x0098 +#define OMAP3430_PRM_CLKSETUP OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0098) +#define OMAP3_PRM_POLCTRL_OFFSET 0x009c +#define OMAP3430_PRM_POLCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x009c) +#define OMAP3_PRM_VOLTSETUP2_OFFSET 0x00a0 +#define OMAP3430_PRM_VOLTSETUP2 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00a0) +#define OMAP3_PRM_VP1_CONFIG_OFFSET 0x00b0 +#define OMAP3430_PRM_VP1_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b0) +#define OMAP3_PRM_VP1_VSTEPMIN_OFFSET 0x00b4 +#define OMAP3430_PRM_VP1_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b4) +#define OMAP3_PRM_VP1_VSTEPMAX_OFFSET 0x00b8 +#define OMAP3430_PRM_VP1_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b8) +#define OMAP3_PRM_VP1_VLIMITTO_OFFSET 0x00bc +#define OMAP3430_PRM_VP1_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00bc) +#define OMAP3_PRM_VP1_VOLTAGE_OFFSET 0x00c0 +#define OMAP3430_PRM_VP1_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c0) +#define OMAP3_PRM_VP1_STATUS_OFFSET 0x00c4 +#define OMAP3430_PRM_VP1_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c4) +#define OMAP3_PRM_VP2_CONFIG_OFFSET 0x00d0 +#define OMAP3430_PRM_VP2_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d0) +#define OMAP3_PRM_VP2_VSTEPMIN_OFFSET 0x00d4 +#define OMAP3430_PRM_VP2_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d4) +#define OMAP3_PRM_VP2_VSTEPMAX_OFFSET 0x00d8 +#define OMAP3430_PRM_VP2_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d8) +#define OMAP3_PRM_VP2_VLIMITTO_OFFSET 0x00dc +#define OMAP3430_PRM_VP2_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00dc) +#define OMAP3_PRM_VP2_VOLTAGE_OFFSET 0x00e0 +#define OMAP3430_PRM_VP2_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e0) +#define OMAP3_PRM_VP2_STATUS_OFFSET 0x00e4 +#define OMAP3430_PRM_VP2_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e4) + +#define OMAP3_PRM_CLKSEL_OFFSET 0x0040 +#define OMAP3430_PRM_CLKSEL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0040) +#define OMAP3_PRM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP3430_PRM_CLKOUT_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0070) + +/* OMAP3 specific register offsets */ +#define OMAP3430ES2_PM_WKEN3 0x00f0 +#define OMAP3430ES2_PM_WKST3 0x00b8 + +#define OMAP3430_PM_MPUGRPSEL 0x00a4 +#define OMAP3430_PM_MPUGRPSEL1 OMAP3430_PM_MPUGRPSEL +#define OMAP3430ES2_PM_MPUGRPSEL3 0x00f8 + +#define OMAP3430_PM_IVAGRPSEL 0x00a8 +#define OMAP3430_PM_IVAGRPSEL1 OMAP3430_PM_IVAGRPSEL +#define OMAP3430ES2_PM_IVAGRPSEL3 0x00f4 + +#define OMAP3430_PM_PREPWSTST 0x00e8 + +#define OMAP3430_PRM_IRQSTATUS_IVA2 0x00f8 +#define OMAP3430_PRM_IRQENABLE_IVA2 0x00fc + + +#ifndef __ASSEMBLER__ + +/* + * OMAP3 access functions for voltage controller (VC) and + * voltage proccessor (VP) in the PRM. + */ +extern u32 omap3_prm_vcvp_read(u8 offset); +extern void omap3_prm_vcvp_write(u32 val, u8 offset); +extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset); + +int __init omap3xxx_prm_init(const struct omap_prcm_init_data *data); +int omap3xxx_prm_clear_global_cold_reset(void); +void omap3_prm_save_scratchpad_contents(u32 *ptr); +void omap3_prm_init_pm(bool has_uart4, bool has_iva); + +#endif /* __ASSEMBLER */ + + +#endif diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c new file mode 100644 index 000000000..6c555438d --- /dev/null +++ b/arch/arm/mach-omap2/prm44xx.c @@ -0,0 +1,859 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 PRM module functions + * + * Copyright (C) 2011-2012 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * Benoît Cousson + * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + */ + +#include <linux/cpu_pm.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of_irq.h> +#include <linux/of.h> + +#include "soc.h" +#include "iomap.h" +#include "common.h" +#include "vp.h" +#include "prm44xx.h" +#include "prcm43xx.h" +#include "prm-regbits-44xx.h" +#include "prcm44xx.h" +#include "prminst44xx.h" +#include "powerdomain.h" +#include "pm.h" + +/* Static data */ + +static void omap44xx_prm_read_pending_irqs(unsigned long *events); +static void omap44xx_prm_ocp_barrier(void); +static void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask); +static void omap44xx_prm_restore_irqen(u32 *saved_mask); +static void omap44xx_prm_reconfigure_io_chain(void); + +static const struct omap_prcm_irq omap4_prcm_irqs[] = { + OMAP_PRCM_IRQ("io", 9, 1), +}; + +static struct omap_prcm_irq_setup omap4_prcm_irq_setup = { + .ack = OMAP4_PRM_IRQSTATUS_MPU_OFFSET, + .mask = OMAP4_PRM_IRQENABLE_MPU_OFFSET, + .pm_ctrl = OMAP4_PRM_IO_PMCTRL_OFFSET, + .nr_regs = 2, + .irqs = omap4_prcm_irqs, + .nr_irqs = ARRAY_SIZE(omap4_prcm_irqs), + .read_pending_irqs = &omap44xx_prm_read_pending_irqs, + .ocp_barrier = &omap44xx_prm_ocp_barrier, + .save_and_clear_irqen = &omap44xx_prm_save_and_clear_irqen, + .restore_irqen = &omap44xx_prm_restore_irqen, + .reconfigure_io_chain = &omap44xx_prm_reconfigure_io_chain, +}; + +struct omap_prm_irq_context { + unsigned long irq_enable; + unsigned long pm_ctrl; +}; + +static struct omap_prm_irq_context omap_prm_context; + +/* + * omap44xx_prm_reset_src_map - map from bits in the PRM_RSTST + * hardware register (which are specific to OMAP44xx SoCs) to reset + * source ID bit shifts (which is an OMAP SoC-independent + * enumeration) + */ +static struct prm_reset_src_map omap44xx_prm_reset_src_map[] = { + { OMAP4430_GLOBAL_WARM_SW_RST_SHIFT, + OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT }, + { OMAP4430_GLOBAL_COLD_RST_SHIFT, + OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT }, + { OMAP4430_MPU_SECURITY_VIOL_RST_SHIFT, + OMAP_SECU_VIOL_RST_SRC_ID_SHIFT }, + { OMAP4430_MPU_WDT_RST_SHIFT, OMAP_MPU_WD_RST_SRC_ID_SHIFT }, + { OMAP4430_SECURE_WDT_RST_SHIFT, OMAP_SECU_WD_RST_SRC_ID_SHIFT }, + { OMAP4430_EXTERNAL_WARM_RST_SHIFT, OMAP_EXTWARM_RST_SRC_ID_SHIFT }, + { OMAP4430_VDD_MPU_VOLT_MGR_RST_SHIFT, + OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT }, + { OMAP4430_VDD_IVA_VOLT_MGR_RST_SHIFT, + OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT }, + { OMAP4430_VDD_CORE_VOLT_MGR_RST_SHIFT, + OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT }, + { OMAP4430_ICEPICK_RST_SHIFT, OMAP_ICEPICK_RST_SRC_ID_SHIFT }, + { OMAP4430_C2C_RST_SHIFT, OMAP_C2C_RST_SRC_ID_SHIFT }, + { -1, -1 }, +}; + +/* PRM low-level functions */ + +/* Read a register in a CM/PRM instance in the PRM module */ +static u32 omap4_prm_read_inst_reg(s16 inst, u16 reg) +{ + return readl_relaxed(prm_base.va + inst + reg); +} + +/* Write into a register in a CM/PRM instance in the PRM module */ +static void omap4_prm_write_inst_reg(u32 val, s16 inst, u16 reg) +{ + writel_relaxed(val, prm_base.va + inst + reg); +} + +/* Read-modify-write a register in a PRM module. Caller must lock */ +static u32 omap4_prm_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg) +{ + u32 v; + + v = omap4_prm_read_inst_reg(inst, reg); + v &= ~mask; + v |= bits; + omap4_prm_write_inst_reg(v, inst, reg); + + return v; +} + +/* PRM VP */ + +/* + * struct omap4_vp - OMAP4 VP register access description. + * @irqstatus_mpu: offset to IRQSTATUS_MPU register for VP + * @tranxdone_status: VP_TRANXDONE_ST bitmask in PRM_IRQSTATUS_MPU reg + */ +struct omap4_vp { + u32 irqstatus_mpu; + u32 tranxdone_status; +}; + +static struct omap4_vp omap4_vp[] = { + [OMAP4_VP_VDD_MPU_ID] = { + .irqstatus_mpu = OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET, + .tranxdone_status = OMAP4430_VP_MPU_TRANXDONE_ST_MASK, + }, + [OMAP4_VP_VDD_IVA_ID] = { + .irqstatus_mpu = OMAP4_PRM_IRQSTATUS_MPU_OFFSET, + .tranxdone_status = OMAP4430_VP_IVA_TRANXDONE_ST_MASK, + }, + [OMAP4_VP_VDD_CORE_ID] = { + .irqstatus_mpu = OMAP4_PRM_IRQSTATUS_MPU_OFFSET, + .tranxdone_status = OMAP4430_VP_CORE_TRANXDONE_ST_MASK, + }, +}; + +static u32 omap4_prm_vp_check_txdone(u8 vp_id) +{ + struct omap4_vp *vp = &omap4_vp[vp_id]; + u32 irqstatus; + + irqstatus = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION, + OMAP4430_PRM_OCP_SOCKET_INST, + vp->irqstatus_mpu); + return irqstatus & vp->tranxdone_status; +} + +static void omap4_prm_vp_clear_txdone(u8 vp_id) +{ + struct omap4_vp *vp = &omap4_vp[vp_id]; + + omap4_prminst_write_inst_reg(vp->tranxdone_status, + OMAP4430_PRM_PARTITION, + OMAP4430_PRM_OCP_SOCKET_INST, + vp->irqstatus_mpu); +}; + +u32 omap4_prm_vcvp_read(u8 offset) +{ + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return 0; + + return omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION, + inst, offset); +} + +void omap4_prm_vcvp_write(u32 val, u8 offset) +{ + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return; + + omap4_prminst_write_inst_reg(val, OMAP4430_PRM_PARTITION, + inst, offset); +} + +u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset) +{ + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return 0; + + return omap4_prminst_rmw_inst_reg_bits(mask, bits, + OMAP4430_PRM_PARTITION, + inst, + offset); +} + +static inline u32 _read_pending_irq_reg(u16 irqen_offs, u16 irqst_offs) +{ + u32 mask, st; + + /* XXX read mask from RAM? */ + mask = omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, + irqen_offs); + st = omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, irqst_offs); + + return mask & st; +} + +/** + * omap44xx_prm_read_pending_irqs - read pending PRM MPU IRQs into @events + * @events: ptr to two consecutive u32s, preallocated by caller + * + * Read PRM_IRQSTATUS_MPU* bits, AND'ed with the currently-enabled PRM + * MPU IRQs, and store the result into the two u32s pointed to by @events. + * No return value. + */ +static void omap44xx_prm_read_pending_irqs(unsigned long *events) +{ + int i; + + for (i = 0; i < omap4_prcm_irq_setup.nr_regs; i++) + events[i] = _read_pending_irq_reg(omap4_prcm_irq_setup.mask + + i * 4, omap4_prcm_irq_setup.ack + i * 4); +} + +/** + * omap44xx_prm_ocp_barrier - force buffered MPU writes to the PRM to complete + * + * Force any buffered writes to the PRM IP block to complete. Needed + * by the PRM IRQ handler, which reads and writes directly to the IP + * block, to avoid race conditions after acknowledging or clearing IRQ + * bits. No return value. + */ +static void omap44xx_prm_ocp_barrier(void) +{ + omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, + OMAP4_REVISION_PRM_OFFSET); +} + +/** + * omap44xx_prm_save_and_clear_irqen - save/clear PRM_IRQENABLE_MPU* regs + * @saved_mask: ptr to a u32 array to save IRQENABLE bits + * + * Save the PRM_IRQENABLE_MPU and PRM_IRQENABLE_MPU_2 registers to + * @saved_mask. @saved_mask must be allocated by the caller. + * Intended to be used in the PRM interrupt handler suspend callback. + * The OCP barrier is needed to ensure the write to disable PRM + * interrupts reaches the PRM before returning; otherwise, spurious + * interrupts might occur. No return value. + */ +static void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask) +{ + int i; + u16 reg; + + for (i = 0; i < omap4_prcm_irq_setup.nr_regs; i++) { + reg = omap4_prcm_irq_setup.mask + i * 4; + + saved_mask[i] = + omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, + reg); + omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST, reg); + } + + /* OCP barrier */ + omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, + OMAP4_REVISION_PRM_OFFSET); +} + +/** + * omap44xx_prm_restore_irqen - set PRM_IRQENABLE_MPU* registers from args + * @saved_mask: ptr to a u32 array of IRQENABLE bits saved previously + * + * Restore the PRM_IRQENABLE_MPU and PRM_IRQENABLE_MPU_2 registers from + * @saved_mask. Intended to be used in the PRM interrupt handler resume + * callback to restore values saved by omap44xx_prm_save_and_clear_irqen(). + * No OCP barrier should be needed here; any pending PRM interrupts will fire + * once the writes reach the PRM. No return value. + */ +static void omap44xx_prm_restore_irqen(u32 *saved_mask) +{ + int i; + + for (i = 0; i < omap4_prcm_irq_setup.nr_regs; i++) + omap4_prm_write_inst_reg(saved_mask[i], + OMAP4430_PRM_OCP_SOCKET_INST, + omap4_prcm_irq_setup.mask + i * 4); +} + +/** + * omap44xx_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain + * + * Clear any previously-latched I/O wakeup events and ensure that the + * I/O wakeup gates are aligned with the current mux settings. Works + * by asserting WUCLKIN, waiting for WUCLKOUT to be asserted, and then + * deasserting WUCLKIN and waiting for WUCLKOUT to be deasserted. + * No return value. XXX Are the final two steps necessary? + */ +static void omap44xx_prm_reconfigure_io_chain(void) +{ + int i = 0; + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return; + + /* Trigger WUCLKIN enable */ + omap4_prm_rmw_inst_reg_bits(OMAP4430_WUCLK_CTRL_MASK, + OMAP4430_WUCLK_CTRL_MASK, + inst, + omap4_prcm_irq_setup.pm_ctrl); + omap_test_timeout( + (((omap4_prm_read_inst_reg(inst, + omap4_prcm_irq_setup.pm_ctrl) & + OMAP4430_WUCLK_STATUS_MASK) >> + OMAP4430_WUCLK_STATUS_SHIFT) == 1), + MAX_IOPAD_LATCH_TIME, i); + if (i == MAX_IOPAD_LATCH_TIME) + pr_warn("PRM: I/O chain clock line assertion timed out\n"); + + /* Trigger WUCLKIN disable */ + omap4_prm_rmw_inst_reg_bits(OMAP4430_WUCLK_CTRL_MASK, 0x0, + inst, + omap4_prcm_irq_setup.pm_ctrl); + omap_test_timeout( + (((omap4_prm_read_inst_reg(inst, + omap4_prcm_irq_setup.pm_ctrl) & + OMAP4430_WUCLK_STATUS_MASK) >> + OMAP4430_WUCLK_STATUS_SHIFT) == 0), + MAX_IOPAD_LATCH_TIME, i); + if (i == MAX_IOPAD_LATCH_TIME) + pr_warn("PRM: I/O chain clock line deassertion timed out\n"); + + return; +} + +/** + * omap44xx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches + * + * Activates the I/O wakeup event latches and allows events logged by + * those latches to signal a wakeup event to the PRCM. For I/O wakeups + * to occur, WAKEUPENABLE bits must be set in the pad mux registers, and + * omap44xx_prm_reconfigure_io_chain() must be called. No return value. + */ +static void omap44xx_prm_enable_io_wakeup(void) +{ + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return; + + omap4_prm_rmw_inst_reg_bits(OMAP4430_GLOBAL_WUEN_MASK, + OMAP4430_GLOBAL_WUEN_MASK, + inst, + omap4_prcm_irq_setup.pm_ctrl); +} + +/** + * omap44xx_prm_read_reset_sources - return the last SoC reset source + * + * Return a u32 representing the last reset sources of the SoC. The + * returned reset source bits are standardized across OMAP SoCs. + */ +static u32 omap44xx_prm_read_reset_sources(void) +{ + struct prm_reset_src_map *p; + u32 r = 0; + u32 v; + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return 0; + + + v = omap4_prm_read_inst_reg(inst, + OMAP4_RM_RSTST); + + p = omap44xx_prm_reset_src_map; + while (p->reg_shift >= 0 && p->std_shift >= 0) { + if (v & (1 << p->reg_shift)) + r |= 1 << p->std_shift; + p++; + } + + return r; +} + +/** + * omap44xx_prm_was_any_context_lost_old - was module hardware context lost? + * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION) + * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST) + * @idx: CONTEXT register offset + * + * Return 1 if any bits were set in the *_CONTEXT_* register + * identified by (@part, @inst, @idx), which means that some context + * was lost for that module; otherwise, return 0. + */ +static bool omap44xx_prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx) +{ + return (omap4_prminst_read_inst_reg(part, inst, idx)) ? 1 : 0; +} + +/** + * omap44xx_prm_clear_context_loss_flags_old - clear context loss flags + * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION) + * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST) + * @idx: CONTEXT register offset + * + * Clear hardware context loss bits for the module identified by + * (@part, @inst, @idx). No return value. XXX Writes to reserved bits; + * is there a way to avoid this? + */ +static void omap44xx_prm_clear_context_loss_flags_old(u8 part, s16 inst, + u16 idx) +{ + omap4_prminst_write_inst_reg(0xffffffff, part, inst, idx); +} + +/* Powerdomain low-level functions */ + +static int omap4_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + omap4_prminst_rmw_inst_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_partition, + pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL); + return 0; +} + +static int omap4_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + v &= OMAP_POWERSTATE_MASK; + v >>= OMAP_POWERSTATE_SHIFT; + + return v; +} + +static int omap4_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= OMAP_POWERSTATEST_MASK; + v >>= OMAP_POWERSTATEST_SHIFT; + + return v; +} + +static int omap4_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= OMAP4430_LASTPOWERSTATEENTERED_MASK; + v >>= OMAP4430_LASTPOWERSTATEENTERED_SHIFT; + + return v; +} + +static int omap4_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm) +{ + omap4_prminst_rmw_inst_reg_bits(OMAP4430_LOWPOWERSTATECHANGE_MASK, + (1 << OMAP4430_LOWPOWERSTATECHANGE_SHIFT), + pwrdm->prcm_partition, + pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL); + return 0; +} + +static int omap4_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + omap4_prminst_rmw_inst_reg_bits(OMAP4430_LASTPOWERSTATEENTERED_MASK, + OMAP4430_LASTPOWERSTATEENTERED_MASK, + pwrdm->prcm_partition, + pwrdm->prcm_offs, OMAP4_PM_PWSTST); + return 0; +} + +static int omap4_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst) +{ + u32 v; + + v = pwrst << __ffs(OMAP4430_LOGICRETSTATE_MASK); + omap4_prminst_rmw_inst_reg_bits(OMAP4430_LOGICRETSTATE_MASK, v, + pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + + return 0; +} + +static int omap4_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_onstate_mask(bank); + + omap4_prminst_rmw_inst_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + + return 0; +} + +static int omap4_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst) +{ + u32 m; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); + + omap4_prminst_rmw_inst_reg_bits(m, (pwrst << __ffs(m)), + pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + + return 0; +} + +static int omap4_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= OMAP4430_LOGICSTATEST_MASK; + v >>= OMAP4430_LOGICSTATEST_SHIFT; + + return v; +} + +static int omap4_pwrdm_read_logic_retst(struct powerdomain *pwrdm) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + v &= OMAP4430_LOGICRETSTATE_MASK; + v >>= OMAP4430_LOGICRETSTATE_SHIFT; + + return v; +} + +/** + * omap4_pwrdm_read_prev_logic_pwrst - read the previous logic powerstate + * @pwrdm: struct powerdomain * to read the state for + * + * Reads the previous logic powerstate for a powerdomain. This + * function must determine the previous logic powerstate by first + * checking the previous powerstate for the domain. If that was OFF, + * then logic has been lost. If previous state was RETENTION, the + * function reads the setting for the next retention logic state to + * see the actual value. In every other case, the logic is + * retained. Returns either PWRDM_POWER_OFF or PWRDM_POWER_RET + * depending whether the logic was retained or not. + */ +static int omap4_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) +{ + int state; + + state = omap4_pwrdm_read_prev_pwrst(pwrdm); + + if (state == PWRDM_POWER_OFF) + return PWRDM_POWER_OFF; + + if (state != PWRDM_POWER_RET) + return PWRDM_POWER_RET; + + return omap4_pwrdm_read_logic_retst(pwrdm); +} + +static int omap4_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = omap2_pwrdm_get_mem_bank_stst_mask(bank); + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTST); + v &= m; + v >>= __ffs(m); + + return v; +} + +static int omap4_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m, v; + + m = omap2_pwrdm_get_mem_bank_retst_mask(bank); + + v = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL); + v &= m; + v >>= __ffs(m); + + return v; +} + +/** + * omap4_pwrdm_read_prev_mem_pwrst - reads the previous memory powerstate + * @pwrdm: struct powerdomain * to read mem powerstate for + * @bank: memory bank index + * + * Reads the previous memory powerstate for a powerdomain. This + * function must determine the previous memory powerstate by first + * checking the previous powerstate for the domain. If that was OFF, + * then logic has been lost. If previous state was RETENTION, the + * function reads the setting for the next memory retention state to + * see the actual value. In every other case, the logic is + * retained. Returns either PWRDM_POWER_OFF or PWRDM_POWER_RET + * depending whether logic was retained or not. + */ +static int omap4_pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + int state; + + state = omap4_pwrdm_read_prev_pwrst(pwrdm); + + if (state == PWRDM_POWER_OFF) + return PWRDM_POWER_OFF; + + if (state != PWRDM_POWER_RET) + return PWRDM_POWER_RET; + + return omap4_pwrdm_read_mem_retst(pwrdm, bank); +} + +static int omap4_pwrdm_wait_transition(struct powerdomain *pwrdm) +{ + u32 c = 0; + + /* + * REVISIT: pwrdm_wait_transition() may be better implemented + * via a callback and a periodic timer check -- how long do we expect + * powerdomain transitions to take? + */ + + /* XXX Is this udelay() value meaningful? */ + while ((omap4_prminst_read_inst_reg(pwrdm->prcm_partition, + pwrdm->prcm_offs, + OMAP4_PM_PWSTST) & + OMAP_INTRANSITION_MASK) && + (c++ < PWRDM_TRANSITION_BAILOUT)) + udelay(1); + + if (c > PWRDM_TRANSITION_BAILOUT) { + pr_err("powerdomain: %s: waited too long to complete transition\n", + pwrdm->name); + return -EAGAIN; + } + + pr_debug("powerdomain: completed transition in %d loops\n", c); + + return 0; +} + +static int omap4_check_vcvp(void) +{ + if (prm_features & PRM_HAS_VOLTAGE) + return 1; + + return 0; +} + +/** + * omap4_pwrdm_save_context - Saves the powerdomain state + * @pwrdm: pointer to individual powerdomain + * + * The function saves the powerdomain state control information. + * This is needed in rtc+ddr modes where we lose powerdomain context. + */ +static void omap4_pwrdm_save_context(struct powerdomain *pwrdm) +{ + pwrdm->context = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, + pwrdm->prcm_offs, + pwrdm->pwrstctrl_offs); + + /* + * Do not save LOWPOWERSTATECHANGE, writing a 1 indicates a request, + * reading back a 1 indicates a request in progress. + */ + pwrdm->context &= ~OMAP4430_LOWPOWERSTATECHANGE_MASK; +} + +/** + * omap4_pwrdm_restore_context - Restores the powerdomain state + * @pwrdm: pointer to individual powerdomain + * + * The function restores the powerdomain state control information. + * This is needed in rtc+ddr modes where we lose powerdomain context. + */ +static void omap4_pwrdm_restore_context(struct powerdomain *pwrdm) +{ + int st, ctrl; + + st = omap4_prminst_read_inst_reg(pwrdm->prcm_partition, + pwrdm->prcm_offs, + pwrdm->pwrstctrl_offs); + + omap4_prminst_write_inst_reg(pwrdm->context, + pwrdm->prcm_partition, + pwrdm->prcm_offs, + pwrdm->pwrstctrl_offs); + + /* Make sure we only wait for a transition if there is one */ + st &= OMAP_POWERSTATEST_MASK; + ctrl = OMAP_POWERSTATEST_MASK & pwrdm->context; + + if (st != ctrl) + omap4_pwrdm_wait_transition(pwrdm); +} + +struct pwrdm_ops omap4_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap4_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap4_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap4_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = omap4_pwrdm_read_prev_pwrst, + .pwrdm_set_lowpwrstchange = omap4_pwrdm_set_lowpwrstchange, + .pwrdm_clear_all_prev_pwrst = omap4_pwrdm_clear_all_prev_pwrst, + .pwrdm_set_logic_retst = omap4_pwrdm_set_logic_retst, + .pwrdm_read_logic_pwrst = omap4_pwrdm_read_logic_pwrst, + .pwrdm_read_prev_logic_pwrst = omap4_pwrdm_read_prev_logic_pwrst, + .pwrdm_read_logic_retst = omap4_pwrdm_read_logic_retst, + .pwrdm_read_mem_pwrst = omap4_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = omap4_pwrdm_read_mem_retst, + .pwrdm_read_prev_mem_pwrst = omap4_pwrdm_read_prev_mem_pwrst, + .pwrdm_set_mem_onst = omap4_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = omap4_pwrdm_set_mem_retst, + .pwrdm_wait_transition = omap4_pwrdm_wait_transition, + .pwrdm_has_voltdm = omap4_check_vcvp, + .pwrdm_save_context = omap4_pwrdm_save_context, + .pwrdm_restore_context = omap4_pwrdm_restore_context, +}; + +static int omap44xx_prm_late_init(void); + +static void prm_save_context(void) +{ + omap_prm_context.irq_enable = + omap4_prm_read_inst_reg(AM43XX_PRM_OCP_SOCKET_INST, + omap4_prcm_irq_setup.mask); + + omap_prm_context.pm_ctrl = + omap4_prm_read_inst_reg(AM43XX_PRM_DEVICE_INST, + omap4_prcm_irq_setup.pm_ctrl); +} + +static void prm_restore_context(void) +{ + omap4_prm_write_inst_reg(omap_prm_context.irq_enable, + OMAP4430_PRM_OCP_SOCKET_INST, + omap4_prcm_irq_setup.mask); + + omap4_prm_write_inst_reg(omap_prm_context.pm_ctrl, + AM43XX_PRM_DEVICE_INST, + omap4_prcm_irq_setup.pm_ctrl); +} + +static int cpu_notifier(struct notifier_block *nb, unsigned long cmd, void *v) +{ + switch (cmd) { + case CPU_CLUSTER_PM_ENTER: + if (enable_off_mode) + prm_save_context(); + break; + case CPU_CLUSTER_PM_EXIT: + if (enable_off_mode) + prm_restore_context(); + break; + } + + return NOTIFY_OK; +} + +/* + * XXX document + */ +static struct prm_ll_data omap44xx_prm_ll_data = { + .read_reset_sources = &omap44xx_prm_read_reset_sources, + .was_any_context_lost_old = &omap44xx_prm_was_any_context_lost_old, + .clear_context_loss_flags_old = &omap44xx_prm_clear_context_loss_flags_old, + .late_init = &omap44xx_prm_late_init, + .assert_hardreset = omap4_prminst_assert_hardreset, + .deassert_hardreset = omap4_prminst_deassert_hardreset, + .is_hardreset_asserted = omap4_prminst_is_hardreset_asserted, + .reset_system = omap4_prminst_global_warm_sw_reset, + .vp_check_txdone = omap4_prm_vp_check_txdone, + .vp_clear_txdone = omap4_prm_vp_clear_txdone, +}; + +static const struct omap_prcm_init_data *prm_init_data; + +int __init omap44xx_prm_init(const struct omap_prcm_init_data *data) +{ + static struct notifier_block nb; + omap_prm_base_init(); + + prm_init_data = data; + + if (data->flags & PRM_HAS_IO_WAKEUP) + prm_features |= PRM_HAS_IO_WAKEUP; + + if (data->flags & PRM_HAS_VOLTAGE) + prm_features |= PRM_HAS_VOLTAGE; + + omap4_prminst_set_prm_dev_inst(data->device_inst_offset); + + /* Add AM437X specific differences */ + if (of_device_is_compatible(data->np, "ti,am4-prcm")) { + omap4_prcm_irq_setup.nr_irqs = 1; + omap4_prcm_irq_setup.nr_regs = 1; + omap4_prcm_irq_setup.pm_ctrl = AM43XX_PRM_IO_PMCTRL_OFFSET; + omap4_prcm_irq_setup.ack = AM43XX_PRM_IRQSTATUS_MPU_OFFSET; + omap4_prcm_irq_setup.mask = AM43XX_PRM_IRQENABLE_MPU_OFFSET; + } + + /* Only AM43XX can lose prm context during rtc-ddr suspend */ + if (soc_is_am43xx()) { + nb.notifier_call = cpu_notifier; + cpu_pm_register_notifier(&nb); + } + + return prm_register(&omap44xx_prm_ll_data); +} + +static int omap44xx_prm_late_init(void) +{ + int irq_num; + + if (!(prm_features & PRM_HAS_IO_WAKEUP)) + return 0; + + irq_num = of_irq_get(prm_init_data->np, 0); + if (irq_num == -EPROBE_DEFER) + return irq_num; + + omap4_prcm_irq_setup.irq = irq_num; + + omap44xx_prm_enable_io_wakeup(); + + return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup); +} + +static void __exit omap44xx_prm_exit(void) +{ + prm_unregister(&omap44xx_prm_ll_data); +} +__exitcall(omap44xx_prm_exit); diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h new file mode 100644 index 000000000..fc7d4ed0b --- /dev/null +++ b/arch/arm/mach-omap2/prm44xx.h @@ -0,0 +1,114 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx PRM instance offset macros + * + * Copyright (C) 2009-2011 Texas Instruments, Inc. + * Copyright (C) 2009-2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + * + * XXX This file needs to be updated to align on one of "OMAP4", "OMAP44XX", + * or "OMAP4430". + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRM44XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM44XX_H + +#include "prm44xx_54xx.h" +#include "prm.h" + +#define OMAP4430_PRM_BASE 0x4a306000 + +#define OMAP44XX_PRM_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE + (inst) + (reg)) + + +/* PRM instances */ +#define OMAP4430_PRM_OCP_SOCKET_INST 0x0000 +#define OMAP4430_PRM_CKGEN_INST 0x0100 +#define OMAP4430_PRM_MPU_INST 0x0300 +#define OMAP4430_PRM_TESLA_INST 0x0400 +#define OMAP4430_PRM_ABE_INST 0x0500 +#define OMAP4430_PRM_ALWAYS_ON_INST 0x0600 +#define OMAP4430_PRM_CORE_INST 0x0700 +#define OMAP4430_PRM_IVAHD_INST 0x0f00 +#define OMAP4430_PRM_CAM_INST 0x1000 +#define OMAP4430_PRM_DSS_INST 0x1100 +#define OMAP4430_PRM_GFX_INST 0x1200 +#define OMAP4430_PRM_L3INIT_INST 0x1300 +#define OMAP4430_PRM_L4PER_INST 0x1400 +#define OMAP4430_PRM_CEFUSE_INST 0x1600 +#define OMAP4430_PRM_WKUP_INST 0x1700 +#define OMAP4430_PRM_WKUP_CM_INST 0x1800 +#define OMAP4430_PRM_EMU_INST 0x1900 +#define OMAP4430_PRM_EMU_CM_INST 0x1a00 +#define OMAP4430_PRM_DEVICE_INST 0x1b00 + +/* PRM clockdomain register offsets (from instance start) */ +#define OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS 0x0000 +#define OMAP4430_PRM_EMU_CM_EMU_CDOFFS 0x0000 + +/* OMAP4 specific register offsets */ +#define OMAP4_RM_RSTST 0x0004 +#define OMAP4_PM_PWSTCTRL 0x0000 +#define OMAP4_PM_PWSTST 0x0004 + +/* PRM.OCP_SOCKET_PRM register offsets */ +#define OMAP4_REVISION_PRM_OFFSET 0x0000 +#define OMAP4_PRM_IRQSTATUS_MPU_OFFSET 0x0010 +#define OMAP4430_PRM_IRQSTATUS_MPU OMAP44XX_PRM_REGADDR(OMAP4430_PRM_OCP_SOCKET_INST, 0x0010) +#define OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET 0x0014 +#define OMAP4_PRM_IRQENABLE_MPU_OFFSET 0x0018 +#define OMAP4430_PRM_IRQENABLE_MPU OMAP44XX_PRM_REGADDR(OMAP4430_PRM_OCP_SOCKET_INST, 0x0018) + +/* PRM.MPU_PRM register offsets */ +#define OMAP4_RM_MPU_MPU_CONTEXT_OFFSET 0x0024 + +/* PRM.DEVICE_PRM register offsets */ +#define OMAP4_PRM_RSTCTRL_OFFSET 0x0000 +#define OMAP4_PRM_VOLTCTRL_OFFSET 0x0010 +#define OMAP4_PRM_IO_PMCTRL_OFFSET 0x0020 +#define OMAP4_PRM_VOLTSETUP_CORE_OFF_OFFSET 0x0028 +#define OMAP4_PRM_VOLTSETUP_MPU_OFF_OFFSET 0x002c +#define OMAP4_PRM_VOLTSETUP_IVA_OFF_OFFSET 0x0030 +#define OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET 0x0034 +#define OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET 0x0038 +#define OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET 0x003c +#define OMAP4_PRM_VP_CORE_CONFIG_OFFSET 0x0040 +#define OMAP4_PRM_VP_CORE_STATUS_OFFSET 0x0044 +#define OMAP4_PRM_VP_CORE_VLIMITTO_OFFSET 0x0048 +#define OMAP4_PRM_VP_CORE_VOLTAGE_OFFSET 0x004c +#define OMAP4_PRM_VP_CORE_VSTEPMAX_OFFSET 0x0050 +#define OMAP4_PRM_VP_CORE_VSTEPMIN_OFFSET 0x0054 +#define OMAP4_PRM_VP_MPU_CONFIG_OFFSET 0x0058 +#define OMAP4_PRM_VP_MPU_STATUS_OFFSET 0x005c +#define OMAP4_PRM_VP_MPU_VLIMITTO_OFFSET 0x0060 +#define OMAP4_PRM_VP_MPU_VOLTAGE_OFFSET 0x0064 +#define OMAP4_PRM_VP_MPU_VSTEPMAX_OFFSET 0x0068 +#define OMAP4_PRM_VP_MPU_VSTEPMIN_OFFSET 0x006c +#define OMAP4_PRM_VP_IVA_CONFIG_OFFSET 0x0070 +#define OMAP4_PRM_VP_IVA_STATUS_OFFSET 0x0074 +#define OMAP4_PRM_VP_IVA_VLIMITTO_OFFSET 0x0078 +#define OMAP4_PRM_VP_IVA_VOLTAGE_OFFSET 0x007c +#define OMAP4_PRM_VP_IVA_VSTEPMAX_OFFSET 0x0080 +#define OMAP4_PRM_VP_IVA_VSTEPMIN_OFFSET 0x0084 +#define OMAP4_PRM_VC_SMPS_SA_OFFSET 0x0088 +#define OMAP4_PRM_VC_VAL_SMPS_RA_VOL_OFFSET 0x008c +#define OMAP4_PRM_VC_VAL_SMPS_RA_CMD_OFFSET 0x0090 +#define OMAP4_PRM_VC_VAL_CMD_VDD_CORE_L_OFFSET 0x0094 +#define OMAP4_PRM_VC_VAL_CMD_VDD_MPU_L_OFFSET 0x0098 +#define OMAP4_PRM_VC_VAL_CMD_VDD_IVA_L_OFFSET 0x009c +#define OMAP4_PRM_VC_VAL_BYPASS_OFFSET 0x00a0 +#define OMAP4_PRM_VC_CFG_CHANNEL_OFFSET 0x00a4 +#define OMAP4_PRM_VC_CFG_I2C_MODE_OFFSET 0x00a8 +#define OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET 0x00ac + +#endif diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h new file mode 100644 index 000000000..0915a1092 --- /dev/null +++ b/arch/arm/mach-omap2/prm44xx_54xx.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx and 54xx PRM common functions + * + * Copyright (C) 2009-2013 Texas Instruments, Inc. + * Copyright (C) 2009-2010 Nokia Corporation + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRM44XX_54XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM44XX_54XX_H + +#include "prcm-common.h" + +/* Function prototypes */ +#ifndef __ASSEMBLER__ + +/* + * OMAP4/OMAP5 access functions for voltage controller (VC) and + * voltage proccessor (VP) in the PRM. + */ +extern u32 omap4_prm_vcvp_read(u8 offset); +extern void omap4_prm_vcvp_write(u32 val, u8 offset); +extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset); + +int __init omap44xx_prm_init(const struct omap_prcm_init_data *data); + +#endif + +#endif diff --git a/arch/arm/mach-omap2/prm54xx.h b/arch/arm/mach-omap2/prm54xx.h new file mode 100644 index 000000000..0b59eeda7 --- /dev/null +++ b/arch/arm/mach-omap2/prm54xx.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP54xx PRM instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRM54XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM54XX_H + +#include "prm44xx_54xx.h" +#include "prm.h" + +#define OMAP54XX_PRM_BASE 0x4ae06000 + +#define OMAP54XX_PRM_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE + (inst) + (reg)) + + +/* PRM instances */ +#define OMAP54XX_PRM_OCP_SOCKET_INST 0x0000 +#define OMAP54XX_PRM_CKGEN_INST 0x0100 +#define OMAP54XX_PRM_MPU_INST 0x0300 +#define OMAP54XX_PRM_DSP_INST 0x0400 +#define OMAP54XX_PRM_ABE_INST 0x0500 +#define OMAP54XX_PRM_COREAON_INST 0x0600 +#define OMAP54XX_PRM_CORE_INST 0x0700 +#define OMAP54XX_PRM_IVA_INST 0x1200 +#define OMAP54XX_PRM_CAM_INST 0x1300 +#define OMAP54XX_PRM_DSS_INST 0x1400 +#define OMAP54XX_PRM_GPU_INST 0x1500 +#define OMAP54XX_PRM_L3INIT_INST 0x1600 +#define OMAP54XX_PRM_CUSTEFUSE_INST 0x1700 +#define OMAP54XX_PRM_WKUPAON_INST 0x1800 +#define OMAP54XX_PRM_WKUPAON_CM_INST 0x1900 +#define OMAP54XX_PRM_EMU_INST 0x1a00 +#define OMAP54XX_PRM_EMU_CM_INST 0x1b00 +#define OMAP54XX_PRM_DEVICE_INST 0x1c00 + +/* PRM clockdomain register offsets (from instance start) */ +#define OMAP54XX_PRM_WKUPAON_CM_WKUPAON_CDOFFS 0x0000 +#define OMAP54XX_PRM_EMU_CM_EMU_CDOFFS 0x0000 + +/* PRM.DEVICE_PRM register offsets */ +#define OMAP54XX_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET 0x0034 +#define OMAP54XX_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET 0x0038 +#define OMAP54XX_PRM_VOLTSETUP_MM_RET_SLEEP_OFFSET 0x003c + +#endif diff --git a/arch/arm/mach-omap2/prm7xx.h b/arch/arm/mach-omap2/prm7xx.h new file mode 100644 index 000000000..0ad1deba3 --- /dev/null +++ b/arch/arm/mach-omap2/prm7xx.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * DRA7xx PRM instance offset macros + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + * + * Generated by code originally written by: + * Paul Walmsley (paul@pwsan.com) + * Rajendra Nayak (rnayak@ti.com) + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRM7XX_H +#define __ARCH_ARM_MACH_OMAP2_PRM7XX_H + +#include "prcm-common.h" +#include "prm44xx_54xx.h" +#include "prm.h" + +#define DRA7XX_PRM_BASE 0x4ae06000 + +#define DRA7XX_PRM_REGADDR(inst, reg) \ + OMAP2_L4_IO_ADDRESS(DRA7XX_PRM_BASE + (inst) + (reg)) + + +/* PRM instances */ +#define DRA7XX_PRM_OCP_SOCKET_INST 0x0000 +#define DRA7XX_PRM_CKGEN_INST 0x0100 +#define DRA7XX_PRM_MPU_INST 0x0300 +#define DRA7XX_PRM_DSP1_INST 0x0400 +#define DRA7XX_PRM_IPU_INST 0x0500 +#define DRA7XX_PRM_COREAON_INST 0x0628 +#define DRA7XX_PRM_CORE_INST 0x0700 +#define DRA7XX_PRM_IVA_INST 0x0f00 +#define DRA7XX_PRM_CAM_INST 0x1000 +#define DRA7XX_PRM_DSS_INST 0x1100 +#define DRA7XX_PRM_GPU_INST 0x1200 +#define DRA7XX_PRM_L3INIT_INST 0x1300 +#define DRA7XX_PRM_L4PER_INST 0x1400 +#define DRA7XX_PRM_CUSTEFUSE_INST 0x1600 +#define DRA7XX_PRM_WKUPAON_INST 0x1724 +#define DRA7XX_PRM_WKUPAON_CM_INST 0x1800 +#define DRA7XX_PRM_EMU_INST 0x1900 +#define DRA7XX_PRM_EMU_CM_INST 0x1a00 +#define DRA7XX_PRM_DSP2_INST 0x1b00 +#define DRA7XX_PRM_EVE1_INST 0x1b40 +#define DRA7XX_PRM_EVE2_INST 0x1b80 +#define DRA7XX_PRM_EVE3_INST 0x1bc0 +#define DRA7XX_PRM_EVE4_INST 0x1c00 +#define DRA7XX_PRM_RTC_INST 0x1c60 +#define DRA7XX_PRM_VPE_INST 0x1c80 +#define DRA7XX_PRM_DEVICE_INST 0x1d00 + +/* PRM clockdomain register offsets (from instance start) */ +#define DRA7XX_PRM_WKUPAON_CM_WKUPAON_CDOFFS 0x0000 +#define DRA7XX_PRM_EMU_CM_EMU_CDOFFS 0x0000 + +/* PRM.CKGEN_PRM register offsets */ +#define DRA7XX_CM_CLKSEL_SYS DRA7XX_PRM_REGADDR(DRA7XX_PRM_CKGEN_INST, 0x0010) + +#endif diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c new file mode 100644 index 000000000..ee4588acd --- /dev/null +++ b/arch/arm/mach-omap2/prm_common.c @@ -0,0 +1,778 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP2+ common Power & Reset Management (PRM) IP block functions + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Tero Kristo <t-kristo@ti.com> + * + * For historical purposes, the API used to configure the PRM + * interrupt handler refers to it as the "PRCM interrupt." The + * underlying registers are located in the PRM on OMAP3/4. + * + * XXX This code should eventually be moved to a PRM driver. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/clk-provider.h> +#include <linux/clk/ti.h> + +#include "soc.h" +#include "prm2xxx_3xxx.h" +#include "prm2xxx.h" +#include "prm3xxx.h" +#include "prm33xx.h" +#include "prm44xx.h" +#include "prm54xx.h" +#include "prm7xx.h" +#include "prcm43xx.h" +#include "common.h" +#include "clock.h" +#include "cm.h" +#include "control.h" + +/* + * OMAP_PRCM_MAX_NR_PENDING_REG: maximum number of PRM_IRQ*_MPU regs + * XXX this is technically not needed, since + * omap_prcm_register_chain_handler() could allocate this based on the + * actual amount of memory needed for the SoC + */ +#define OMAP_PRCM_MAX_NR_PENDING_REG 2 + +/* + * prcm_irq_chips: an array of all of the "generic IRQ chips" in use + * by the PRCM interrupt handler code. There will be one 'chip' per + * PRM_{IRQSTATUS,IRQENABLE}_MPU register pair. (So OMAP3 will have + * one "chip" and OMAP4 will have two.) + */ +static struct irq_chip_generic **prcm_irq_chips; + +/* + * prcm_irq_setup: the PRCM IRQ parameters for the hardware the code + * is currently running on. Defined and passed by initialization code + * that calls omap_prcm_register_chain_handler(). + */ +static struct omap_prcm_irq_setup *prcm_irq_setup; + +/* prm_base: base virtual address of the PRM IP block */ +struct omap_domain_base prm_base; + +u16 prm_features; + +/* + * Platforms that implement different reboot modes can store the requested + * mode here. + */ +enum reboot_mode prm_reboot_mode; + +/* + * prm_ll_data: function pointers to SoC-specific implementations of + * common PRM functions + */ +static struct prm_ll_data null_prm_ll_data; +static struct prm_ll_data *prm_ll_data = &null_prm_ll_data; + +/* Private functions */ + +/* + * Move priority events from events to priority_events array + */ +static void omap_prcm_events_filter_priority(unsigned long *events, + unsigned long *priority_events) +{ + int i; + + for (i = 0; i < prcm_irq_setup->nr_regs; i++) { + priority_events[i] = + events[i] & prcm_irq_setup->priority_mask[i]; + events[i] ^= priority_events[i]; + } +} + +/* + * PRCM Interrupt Handler + * + * This is a common handler for the OMAP PRCM interrupts. Pending + * interrupts are detected by a call to prcm_pending_events and + * dispatched accordingly. Clearing of the wakeup events should be + * done by the SoC specific individual handlers. + */ +static void omap_prcm_irq_handler(struct irq_desc *desc) +{ + unsigned long pending[OMAP_PRCM_MAX_NR_PENDING_REG]; + unsigned long priority_pending[OMAP_PRCM_MAX_NR_PENDING_REG]; + struct irq_chip *chip = irq_desc_get_chip(desc); + unsigned int virtirq; + int nr_irq = prcm_irq_setup->nr_regs * 32; + + /* + * If we are suspended, mask all interrupts from PRCM level, + * this does not ack them, and they will be pending until we + * re-enable the interrupts, at which point the + * omap_prcm_irq_handler will be executed again. The + * _save_and_clear_irqen() function must ensure that the PRM + * write to disable all IRQs has reached the PRM before + * returning, or spurious PRCM interrupts may occur during + * suspend. + */ + if (prcm_irq_setup->suspended) { + prcm_irq_setup->save_and_clear_irqen(prcm_irq_setup->saved_mask); + prcm_irq_setup->suspend_save_flag = true; + } + + /* + * Loop until all pending irqs are handled, since + * generic_handle_irq() can cause new irqs to come + */ + while (!prcm_irq_setup->suspended) { + prcm_irq_setup->read_pending_irqs(pending); + + /* No bit set, then all IRQs are handled */ + if (find_first_bit(pending, nr_irq) >= nr_irq) + break; + + omap_prcm_events_filter_priority(pending, priority_pending); + + /* + * Loop on all currently pending irqs so that new irqs + * cannot starve previously pending irqs + */ + + /* Serve priority events first */ + for_each_set_bit(virtirq, priority_pending, nr_irq) + generic_handle_irq(prcm_irq_setup->base_irq + virtirq); + + /* Serve normal events next */ + for_each_set_bit(virtirq, pending, nr_irq) + generic_handle_irq(prcm_irq_setup->base_irq + virtirq); + } + if (chip->irq_ack) + chip->irq_ack(&desc->irq_data); + if (chip->irq_eoi) + chip->irq_eoi(&desc->irq_data); + chip->irq_unmask(&desc->irq_data); + + prcm_irq_setup->ocp_barrier(); /* avoid spurious IRQs */ +} + +/* Public functions */ + +/** + * omap_prcm_event_to_irq - given a PRCM event name, returns the + * corresponding IRQ on which the handler should be registered + * @name: name of the PRCM interrupt bit to look up - see struct omap_prcm_irq + * + * Returns the Linux internal IRQ ID corresponding to @name upon success, + * or -ENOENT upon failure. + */ +int omap_prcm_event_to_irq(const char *name) +{ + int i; + + if (!prcm_irq_setup || !name) + return -ENOENT; + + for (i = 0; i < prcm_irq_setup->nr_irqs; i++) + if (!strcmp(prcm_irq_setup->irqs[i].name, name)) + return prcm_irq_setup->base_irq + + prcm_irq_setup->irqs[i].offset; + + return -ENOENT; +} + +/** + * omap_prcm_irq_cleanup - reverses memory allocated and other steps + * done by omap_prcm_register_chain_handler() + * + * No return value. + */ +static void omap_prcm_irq_cleanup(void) +{ + unsigned int irq; + int i; + + if (!prcm_irq_setup) { + pr_err("PRCM: IRQ handler not initialized; cannot cleanup\n"); + return; + } + + if (prcm_irq_chips) { + for (i = 0; i < prcm_irq_setup->nr_regs; i++) { + if (prcm_irq_chips[i]) + irq_remove_generic_chip(prcm_irq_chips[i], + 0xffffffff, 0, 0); + prcm_irq_chips[i] = NULL; + } + kfree(prcm_irq_chips); + prcm_irq_chips = NULL; + } + + kfree(prcm_irq_setup->saved_mask); + prcm_irq_setup->saved_mask = NULL; + + kfree(prcm_irq_setup->priority_mask); + prcm_irq_setup->priority_mask = NULL; + + irq = prcm_irq_setup->irq; + irq_set_chained_handler(irq, NULL); + + if (prcm_irq_setup->base_irq > 0) + irq_free_descs(prcm_irq_setup->base_irq, + prcm_irq_setup->nr_regs * 32); + prcm_irq_setup->base_irq = 0; +} + +void omap_prcm_irq_prepare(void) +{ + prcm_irq_setup->suspended = true; +} + +void omap_prcm_irq_complete(void) +{ + prcm_irq_setup->suspended = false; + + /* If we have not saved the masks, do not attempt to restore */ + if (!prcm_irq_setup->suspend_save_flag) + return; + + prcm_irq_setup->suspend_save_flag = false; + + /* + * Re-enable all masked PRCM irq sources, this causes the PRCM + * interrupt to fire immediately if the events were masked + * previously in the chain handler + */ + prcm_irq_setup->restore_irqen(prcm_irq_setup->saved_mask); +} + +/** + * omap_prcm_register_chain_handler - initializes the prcm chained interrupt + * handler based on provided parameters + * @irq_setup: hardware data about the underlying PRM/PRCM + * + * Set up the PRCM chained interrupt handler on the PRCM IRQ. Sets up + * one generic IRQ chip per PRM interrupt status/enable register pair. + * Returns 0 upon success, -EINVAL if called twice or if invalid + * arguments are passed, or -ENOMEM on any other error. + */ +int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup) +{ + int nr_regs; + u32 mask[OMAP_PRCM_MAX_NR_PENDING_REG]; + int offset, i, irq; + struct irq_chip_generic *gc; + struct irq_chip_type *ct; + + if (!irq_setup) + return -EINVAL; + + nr_regs = irq_setup->nr_regs; + + if (prcm_irq_setup) { + pr_err("PRCM: already initialized; won't reinitialize\n"); + return -EINVAL; + } + + if (nr_regs > OMAP_PRCM_MAX_NR_PENDING_REG) { + pr_err("PRCM: nr_regs too large\n"); + return -EINVAL; + } + + prcm_irq_setup = irq_setup; + + prcm_irq_chips = kcalloc(nr_regs, sizeof(void *), GFP_KERNEL); + prcm_irq_setup->saved_mask = kcalloc(nr_regs, sizeof(u32), + GFP_KERNEL); + prcm_irq_setup->priority_mask = kcalloc(nr_regs, sizeof(u32), + GFP_KERNEL); + + if (!prcm_irq_chips || !prcm_irq_setup->saved_mask || + !prcm_irq_setup->priority_mask) + goto err; + + memset(mask, 0, sizeof(mask)); + + for (i = 0; i < irq_setup->nr_irqs; i++) { + offset = irq_setup->irqs[i].offset; + mask[offset >> 5] |= 1 << (offset & 0x1f); + if (irq_setup->irqs[i].priority) + irq_setup->priority_mask[offset >> 5] |= + 1 << (offset & 0x1f); + } + + irq = irq_setup->irq; + irq_set_chained_handler(irq, omap_prcm_irq_handler); + + irq_setup->base_irq = irq_alloc_descs(-1, 0, irq_setup->nr_regs * 32, + 0); + + if (irq_setup->base_irq < 0) { + pr_err("PRCM: failed to allocate irq descs: %d\n", + irq_setup->base_irq); + goto err; + } + + for (i = 0; i < irq_setup->nr_regs; i++) { + gc = irq_alloc_generic_chip("PRCM", 1, + irq_setup->base_irq + i * 32, prm_base.va, + handle_level_irq); + + if (!gc) { + pr_err("PRCM: failed to allocate generic chip\n"); + goto err; + } + ct = gc->chip_types; + ct->chip.irq_ack = irq_gc_ack_set_bit; + ct->chip.irq_mask = irq_gc_mask_clr_bit; + ct->chip.irq_unmask = irq_gc_mask_set_bit; + + ct->regs.ack = irq_setup->ack + i * 4; + ct->regs.mask = irq_setup->mask + i * 4; + + irq_setup_generic_chip(gc, mask[i], 0, IRQ_NOREQUEST, 0); + prcm_irq_chips[i] = gc; + } + + irq = omap_prcm_event_to_irq("io"); + omap_pcs_legacy_init(irq, irq_setup->reconfigure_io_chain); + + return 0; + +err: + omap_prcm_irq_cleanup(); + return -ENOMEM; +} + +/** + * prm_was_any_context_lost_old - was device context lost? (old API) + * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION) + * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST) + * @idx: CONTEXT register offset + * + * Return 1 if any bits were set in the *_CONTEXT_* register + * identified by (@part, @inst, @idx), which means that some context + * was lost for that module; otherwise, return 0. XXX Deprecated; + * callers need to use a less-SoC-dependent way to identify hardware + * IP blocks. + */ +bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx) +{ + bool ret = true; + + if (prm_ll_data->was_any_context_lost_old) + ret = prm_ll_data->was_any_context_lost_old(part, inst, idx); + else + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + + return ret; +} + +/** + * prm_clear_context_loss_flags_old - clear context loss flags (old API) + * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION) + * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST) + * @idx: CONTEXT register offset + * + * Clear hardware context loss bits for the module identified by + * (@part, @inst, @idx). No return value. XXX Deprecated; callers + * need to use a less-SoC-dependent way to identify hardware IP + * blocks. + */ +void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx) +{ + if (prm_ll_data->clear_context_loss_flags_old) + prm_ll_data->clear_context_loss_flags_old(part, inst, idx); + else + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); +} + +/** + * omap_prm_assert_hardreset - assert hardreset for an IP block + * @shift: register bit shift corresponding to the reset line + * @part: PRM partition + * @prm_mod: PRM submodule base or instance offset + * @offset: register offset + * + * Asserts a hardware reset line for an IP block. + */ +int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset) +{ + if (!prm_ll_data->assert_hardreset) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return -EINVAL; + } + + return prm_ll_data->assert_hardreset(shift, part, prm_mod, offset); +} + +/** + * omap_prm_deassert_hardreset - deassert hardreset for an IP block + * @shift: register bit shift corresponding to the reset line + * @st_shift: reset status bit shift corresponding to the reset line + * @part: PRM partition + * @prm_mod: PRM submodule base or instance offset + * @offset: register offset + * @st_offset: status register offset + * + * Deasserts a hardware reset line for an IP block. + */ +int omap_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 prm_mod, + u16 offset, u16 st_offset) +{ + if (!prm_ll_data->deassert_hardreset) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return -EINVAL; + } + + return prm_ll_data->deassert_hardreset(shift, st_shift, part, prm_mod, + offset, st_offset); +} + +/** + * omap_prm_is_hardreset_asserted - check the hardreset status for an IP block + * @shift: register bit shift corresponding to the reset line + * @part: PRM partition + * @prm_mod: PRM submodule base or instance offset + * @offset: register offset + * + * Checks if a hardware reset line for an IP block is enabled or not. + */ +int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset) +{ + if (!prm_ll_data->is_hardreset_asserted) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return -EINVAL; + } + + return prm_ll_data->is_hardreset_asserted(shift, part, prm_mod, offset); +} + +/** + * omap_prm_reset_system - trigger global SW reset + * + * Triggers SoC specific global warm reset to reboot the device. + */ +void omap_prm_reset_system(void) +{ + if (!prm_ll_data->reset_system) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return; + } + + prm_ll_data->reset_system(); + + while (1) { + cpu_relax(); + wfe(); + } +} + +/** + * omap_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt + * @module: PRM module to clear wakeups from + * @regs: register to clear + * @wkst_mask: wkst bits to clear + * + * Clears any wakeup events for the module and register set defined. + * Uses SoC specific implementation to do the actual wakeup status + * clearing. + */ +int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask) +{ + if (!prm_ll_data->clear_mod_irqs) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return -EINVAL; + } + + return prm_ll_data->clear_mod_irqs(module, regs, wkst_mask); +} + +/** + * omap_prm_vp_check_txdone - check voltage processor TX done status + * @vp_id: unique VP instance ID + * + * Checks if voltage processor transmission has been completed. + * Returns non-zero if a transmission has completed, 0 otherwise. + */ +u32 omap_prm_vp_check_txdone(u8 vp_id) +{ + if (!prm_ll_data->vp_check_txdone) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return 0; + } + + return prm_ll_data->vp_check_txdone(vp_id); +} + +/** + * omap_prm_vp_clear_txdone - clears voltage processor TX done status + * @vp_id: unique VP instance ID + * + * Clears the status bit for completed voltage processor transmission + * returned by prm_vp_check_txdone. + */ +void omap_prm_vp_clear_txdone(u8 vp_id) +{ + if (!prm_ll_data->vp_clear_txdone) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return; + } + + prm_ll_data->vp_clear_txdone(vp_id); +} + +/** + * prm_register - register per-SoC low-level data with the PRM + * @pld: low-level per-SoC OMAP PRM data & function pointers to register + * + * Register per-SoC low-level OMAP PRM data and function pointers with + * the OMAP PRM common interface. The caller must keep the data + * pointed to by @pld valid until it calls prm_unregister() and + * it returns successfully. Returns 0 upon success, -EINVAL if @pld + * is NULL, or -EEXIST if prm_register() has already been called + * without an intervening prm_unregister(). + */ +int prm_register(struct prm_ll_data *pld) +{ + if (!pld) + return -EINVAL; + + if (prm_ll_data != &null_prm_ll_data) + return -EEXIST; + + prm_ll_data = pld; + + return 0; +} + +/** + * prm_unregister - unregister per-SoC low-level data & function pointers + * @pld: low-level per-SoC OMAP PRM data & function pointers to unregister + * + * Unregister per-SoC low-level OMAP PRM data and function pointers + * that were previously registered with prm_register(). The + * caller may not destroy any of the data pointed to by @pld until + * this function returns successfully. Returns 0 upon success, or + * -EINVAL if @pld is NULL or if @pld does not match the struct + * prm_ll_data * previously registered by prm_register(). + */ +int prm_unregister(struct prm_ll_data *pld) +{ + if (!pld || prm_ll_data != pld) + return -EINVAL; + + prm_ll_data = &null_prm_ll_data; + + return 0; +} + +#ifdef CONFIG_ARCH_OMAP2 +static struct omap_prcm_init_data omap2_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap2xxx_prm_init, +}; +#endif + +#ifdef CONFIG_ARCH_OMAP3 +static struct omap_prcm_init_data omap3_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap3xxx_prm_init, + + /* + * IVA2 offset is a negative value, must offset the prm_base + * address by this to get it to positive + */ + .offset = -OMAP3430_IVA2_MOD, +}; +#endif + +#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_TI81XX) +static struct omap_prcm_init_data am3_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = am33xx_prm_init, +}; +#endif + +#ifdef CONFIG_SOC_TI81XX +static struct omap_prcm_init_data dm814_pllss_data __initdata = { + .index = TI_CLKM_PLLSS, + .init = am33xx_prm_init, +}; +#endif + +#ifdef CONFIG_ARCH_OMAP4 +static struct omap_prcm_init_data omap4_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap44xx_prm_init, + .device_inst_offset = OMAP4430_PRM_DEVICE_INST, + .flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE, +}; +#endif + +#ifdef CONFIG_SOC_OMAP5 +static struct omap_prcm_init_data omap5_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap44xx_prm_init, + .device_inst_offset = OMAP54XX_PRM_DEVICE_INST, + .flags = PRM_HAS_IO_WAKEUP | PRM_HAS_VOLTAGE, +}; +#endif + +#ifdef CONFIG_SOC_DRA7XX +static struct omap_prcm_init_data dra7_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap44xx_prm_init, + .device_inst_offset = DRA7XX_PRM_DEVICE_INST, + .flags = PRM_HAS_IO_WAKEUP, +}; +#endif + +#ifdef CONFIG_SOC_AM43XX +static struct omap_prcm_init_data am4_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap44xx_prm_init, + .device_inst_offset = AM43XX_PRM_DEVICE_INST, + .flags = PRM_HAS_IO_WAKEUP, +}; +#endif + +#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) +static struct omap_prcm_init_data scrm_data __initdata = { + .index = TI_CLKM_SCRM, +}; +#endif + +static const struct of_device_id omap_prcm_dt_match_table[] __initconst = { +#ifdef CONFIG_SOC_AM33XX + { .compatible = "ti,am3-prcm", .data = &am3_prm_data }, +#endif +#ifdef CONFIG_SOC_AM43XX + { .compatible = "ti,am4-prcm", .data = &am4_prm_data }, +#endif +#ifdef CONFIG_SOC_TI81XX + { .compatible = "ti,dm814-prcm", .data = &am3_prm_data }, + { .compatible = "ti,dm814-pllss", .data = &dm814_pllss_data }, + { .compatible = "ti,dm816-prcm", .data = &am3_prm_data }, +#endif +#ifdef CONFIG_ARCH_OMAP2 + { .compatible = "ti,omap2-prcm", .data = &omap2_prm_data }, +#endif +#ifdef CONFIG_ARCH_OMAP3 + { .compatible = "ti,omap3-prm", .data = &omap3_prm_data }, +#endif +#ifdef CONFIG_ARCH_OMAP4 + { .compatible = "ti,omap4-prm", .data = &omap4_prm_data }, + { .compatible = "ti,omap4-scrm", .data = &scrm_data }, +#endif +#ifdef CONFIG_SOC_OMAP5 + { .compatible = "ti,omap5-prm", .data = &omap5_prm_data }, + { .compatible = "ti,omap5-scrm", .data = &scrm_data }, +#endif +#ifdef CONFIG_SOC_DRA7XX + { .compatible = "ti,dra7-prm", .data = &dra7_prm_data }, +#endif + { } +}; + +/** + * omap2_prm_base_init - initialize iomappings for the PRM driver + * + * Detects and initializes the iomappings for the PRM driver, based + * on the DT data. Returns 0 in success, negative error value + * otherwise. + */ +static int __init omap2_prm_base_init(void) +{ + struct device_node *np; + const struct of_device_id *match; + struct omap_prcm_init_data *data; + struct resource res; + int ret; + + for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) { + data = (struct omap_prcm_init_data *)match->data; + + ret = of_address_to_resource(np, 0, &res); + if (ret) { + of_node_put(np); + return ret; + } + + data->mem = ioremap(res.start, resource_size(&res)); + + if (data->index == TI_CLKM_PRM) { + prm_base.va = data->mem + data->offset; + prm_base.pa = res.start + data->offset; + } + + data->np = np; + + if (data->init) + data->init(data); + } + + return 0; +} + +int __init omap2_prcm_base_init(void) +{ + int ret; + + ret = omap2_prm_base_init(); + if (ret) + return ret; + + return omap2_cm_base_init(); +} + +/** + * omap_prcm_init - low level init for the PRCM drivers + * + * Initializes the low level clock infrastructure for PRCM drivers. + * Returns 0 in success, negative error value in failure. + */ +int __init omap_prcm_init(void) +{ + struct device_node *np; + const struct of_device_id *match; + const struct omap_prcm_init_data *data; + int ret; + + for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) { + data = match->data; + + ret = omap2_clk_provider_init(np, data->index, NULL, data->mem); + if (ret) { + of_node_put(np); + return ret; + } + } + + omap_cm_init(); + + return 0; +} + +static int __init prm_late_init(void) +{ + if (prm_ll_data->late_init) + return prm_ll_data->late_init(); + return 0; +} +subsys_initcall(prm_late_init); diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c new file mode 100644 index 000000000..fc086d8b9 --- /dev/null +++ b/arch/arm/mach-omap2/prminst44xx.c @@ -0,0 +1,195 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 PRM instance functions + * + * Copyright (C) 2009 Nokia Corporation + * Copyright (C) 2011 Texas Instruments, Inc. + * Paul Walmsley + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include "iomap.h" +#include "common.h" +#include "prcm-common.h" +#include "prm44xx.h" +#include "prm54xx.h" +#include "prm7xx.h" +#include "prminst44xx.h" +#include "prm-regbits-44xx.h" +#include "prcm44xx.h" +#include "prcm43xx.h" +#include "prcm_mpu44xx.h" +#include "soc.h" + +static struct omap_domain_base _prm_bases[OMAP4_MAX_PRCM_PARTITIONS]; + +static s32 prm_dev_inst = PRM_INSTANCE_UNKNOWN; + +/** + * omap_prm_base_init - Populates the prm partitions + * + * Populates the base addresses of the _prm_bases + * array used for read/write of prm module registers. + */ +void omap_prm_base_init(void) +{ + memcpy(&_prm_bases[OMAP4430_PRM_PARTITION], &prm_base, + sizeof(prm_base)); + memcpy(&_prm_bases[OMAP4430_PRCM_MPU_PARTITION], &prcm_mpu_base, + sizeof(prcm_mpu_base)); +} + +s32 omap4_prmst_get_prm_dev_inst(void) +{ + return prm_dev_inst; +} + +void omap4_prminst_set_prm_dev_inst(s32 dev_inst) +{ + prm_dev_inst = dev_inst; +} + +/* Read a register in a PRM instance */ +u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_prm_bases[part].va); + return readl_relaxed(_prm_bases[part].va + inst + idx); +} + +/* Write into a register in a PRM instance */ +void omap4_prminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_prm_bases[part].va); + writel_relaxed(val, _prm_bases[part].va + inst + idx); +} + +/* Read-modify-write a register in PRM. Caller must lock */ +u32 omap4_prminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst, + u16 idx) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(part, inst, idx); + v &= ~mask; + v |= bits; + omap4_prminst_write_inst_reg(v, part, inst, idx); + + return v; +} + +/** + * omap4_prminst_is_hardreset_asserted - read the HW reset line state of + * submodules contained in the hwmod module + * @rstctrl_reg: RM_RSTCTRL register address for this module + * @shift: register bit shift corresponding to the reset line to check + * + * Returns 1 if the (sub)module hardreset line is currently asserted, + * 0 if the (sub)module hardreset line is not currently asserted, or + * -EINVAL upon parameter error. + */ +int omap4_prminst_is_hardreset_asserted(u8 shift, u8 part, s16 inst, + u16 rstctrl_offs) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(part, inst, rstctrl_offs); + v &= 1 << shift; + v >>= shift; + + return v; +} + +/** + * omap4_prminst_assert_hardreset - assert the HW reset line of a submodule + * @rstctrl_reg: RM_RSTCTRL register address for this module + * @shift: register bit shift corresponding to the reset line to assert + * + * Some IPs like dsp, ipu or iva contain processors that require an HW + * reset line to be asserted / deasserted in order to fully enable the + * IP. These modules may have multiple hard-reset lines that reset + * different 'submodules' inside the IP block. This function will + * place the submodule into reset. Returns 0 upon success or -EINVAL + * upon an argument error. + */ +int omap4_prminst_assert_hardreset(u8 shift, u8 part, s16 inst, + u16 rstctrl_offs) +{ + u32 mask = 1 << shift; + + omap4_prminst_rmw_inst_reg_bits(mask, mask, part, inst, rstctrl_offs); + + return 0; +} + +/** + * omap4_prminst_deassert_hardreset - deassert a submodule hardreset line and + * wait + * @shift: register bit shift corresponding to the reset line to deassert + * @st_shift: status bit offset corresponding to the reset line + * @part: PRM partition + * @inst: PRM instance offset + * @rstctrl_offs: reset register offset + * @rstst_offs: reset status register offset + * + * Some IPs like dsp, ipu or iva contain processors that require an HW + * reset line to be asserted / deasserted in order to fully enable the + * IP. These modules may have multiple hard-reset lines that reset + * different 'submodules' inside the IP block. This function will + * take the submodule out of reset and wait until the PRCM indicates + * that the reset has completed before returning. Returns 0 upon success or + * -EINVAL upon an argument error, -EEXIST if the submodule was already out + * of reset, or -EBUSY if the submodule did not exit reset promptly. + */ +int omap4_prminst_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 inst, + u16 rstctrl_offs, u16 rstst_offs) +{ + int c; + u32 mask = 1 << shift; + u32 st_mask = 1 << st_shift; + + /* Check the current status to avoid de-asserting the line twice */ + if (omap4_prminst_is_hardreset_asserted(shift, part, inst, + rstctrl_offs) == 0) + return -EEXIST; + + /* Clear the reset status by writing 1 to the status bit */ + omap4_prminst_rmw_inst_reg_bits(0xffffffff, st_mask, part, inst, + rstst_offs); + /* de-assert the reset control line */ + omap4_prminst_rmw_inst_reg_bits(mask, 0, part, inst, rstctrl_offs); + /* wait the status to be set */ + omap_test_timeout(omap4_prminst_is_hardreset_asserted(st_shift, part, + inst, rstst_offs), + MAX_MODULE_HARDRESET_WAIT, c); + + return (c == MAX_MODULE_HARDRESET_WAIT) ? -EBUSY : 0; +} + + +void omap4_prminst_global_warm_sw_reset(void) +{ + u32 v; + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return; + + v = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION, inst, + OMAP4_PRM_RSTCTRL_OFFSET); + v |= OMAP4430_RST_GLOBAL_WARM_SW_MASK; + omap4_prminst_write_inst_reg(v, OMAP4430_PRM_PARTITION, + inst, OMAP4_PRM_RSTCTRL_OFFSET); + + /* OCP barrier */ + v = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION, + inst, OMAP4_PRM_RSTCTRL_OFFSET); +} diff --git a/arch/arm/mach-omap2/prminst44xx.h b/arch/arm/mach-omap2/prminst44xx.h new file mode 100644 index 000000000..11365a08e --- /dev/null +++ b/arch/arm/mach-omap2/prminst44xx.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP4 Power/Reset Management (PRM) function prototypes + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2011 Texas Instruments, Inc. + * Paul Walmsley + */ +#ifndef __ARCH_ASM_MACH_OMAP2_PRMINST44XX_H +#define __ARCH_ASM_MACH_OMAP2_PRMINST44XX_H + +#define PRM_INSTANCE_UNKNOWN -1 +extern s32 omap4_prmst_get_prm_dev_inst(void); +void omap4_prminst_set_prm_dev_inst(s32 dev_inst); + +/* + * In an ideal world, we would not export these low-level functions, + * but this will probably take some time to fix properly + */ +extern u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx); +extern void omap4_prminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx); +extern u32 omap4_prminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, + s16 inst, u16 idx); + +extern void omap4_prminst_global_warm_sw_reset(void); + +extern int omap4_prminst_is_hardreset_asserted(u8 shift, u8 part, s16 inst, + u16 rstctrl_offs); +extern int omap4_prminst_assert_hardreset(u8 shift, u8 part, s16 inst, + u16 rstctrl_offs); +int omap4_prminst_deassert_hardreset(u8 shift, u8 st_shift, u8 part, + s16 inst, u16 rstctrl_offs, + u16 rstst_offs); + +extern void omap_prm_base_init(void); + +#endif diff --git a/arch/arm/mach-omap2/scrm44xx.h b/arch/arm/mach-omap2/scrm44xx.h new file mode 100644 index 000000000..2e861aa95 --- /dev/null +++ b/arch/arm/mach-omap2/scrm44xx.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx SCRM registers and bitfields + * + * Copyright (C) 2010 Texas Instruments, Inc. + * + * Benoit Cousson (b-cousson@ti.com) + * + * This file is automatically generated from the OMAP hardware databases. + * We respectfully ask that any modifications to this file be coordinated + * with the public linux-omap@vger.kernel.org mailing list and the + * authors above to ensure that the autogeneration scripts are kept + * up-to-date with the file contents. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_SCRM_44XX_H +#define __ARCH_ARM_MACH_OMAP2_SCRM_44XX_H + +#define OMAP4_SCRM_BASE 0x4a30a000 + +#define OMAP44XX_SCRM_REGADDR(reg) \ + OMAP2_L4_IO_ADDRESS(OMAP4_SCRM_BASE + (reg)) + +/* Registers offset */ +#define OMAP4_SCRM_CLKSETUPTIME OMAP44XX_SCRM_REGADDR(0x0100) + +/* CLKSETUPTIME */ +#define OMAP4_DOWNTIME_SHIFT 16 +#define OMAP4_DOWNTIME_MASK (0x3f << 16) +#define OMAP4_SETUPTIME_SHIFT 0 +#define OMAP4_SETUPTIME_MASK (0xfff << 0) + +#endif diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c new file mode 100644 index 000000000..b1bf9e24d --- /dev/null +++ b/arch/arm/mach-omap2/sdrc.c @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * SMS/SDRC (SDRAM controller) common code for OMAP2/3 + * + * Copyright (C) 2005, 2008 Texas Instruments Inc. + * Copyright (C) 2005, 2008 Nokia Corporation + * + * Tony Lindgren <tony@atomide.com> + * Paul Walmsley + * Richard Woodruff <r-woodruff2@ti.com> + */ +#undef DEBUG + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include "common.h" +#include "clock.h" +#include "sdrc.h" + +static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1; + +void __iomem *omap2_sdrc_base; +void __iomem *omap2_sms_base; + +struct omap2_sms_regs { + u32 sms_sysconfig; +}; + +static struct omap2_sms_regs sms_context; + +/* SDRC_POWER register bits */ +#define SDRC_POWER_EXTCLKDIS_SHIFT 3 +#define SDRC_POWER_PWDENA_SHIFT 2 +#define SDRC_POWER_PAGEPOLICY_SHIFT 0 + +/** + * omap2_sms_save_context - Save SMS registers + * + * Save SMS registers that need to be restored after off mode. + */ +static void omap2_sms_save_context(void) +{ + sms_context.sms_sysconfig = sms_read_reg(SMS_SYSCONFIG); +} + +/** + * omap2_sms_restore_context - Restore SMS registers + * + * Restore SMS registers that need to be Restored after off mode. + */ +void omap2_sms_restore_context(void) +{ + sms_write_reg(sms_context.sms_sysconfig, SMS_SYSCONFIG); +} + +void __init omap2_set_globals_sdrc(void __iomem *sdrc, void __iomem *sms) +{ + omap2_sdrc_base = sdrc; + omap2_sms_base = sms; +} + +/** + * omap2_sdrc_init - initialize SMS, SDRC devices on boot + * @sdrc_cs[01]: pointers to a null-terminated list of struct omap_sdrc_params + * Support for 2 chip selects timings + * + * Turn on smart idle modes for SDRAM scheduler and controller. + * Program a known-good configuration for the SDRC to deal with buggy + * bootloaders. + */ +void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) +{ + u32 l; + + l = sms_read_reg(SMS_SYSCONFIG); + l &= ~(0x3 << 3); + l |= (0x2 << 3); + sms_write_reg(l, SMS_SYSCONFIG); + + l = sdrc_read_reg(SDRC_SYSCONFIG); + l &= ~(0x3 << 3); + l |= (0x2 << 3); + sdrc_write_reg(l, SDRC_SYSCONFIG); + + sdrc_init_params_cs0 = sdrc_cs0; + sdrc_init_params_cs1 = sdrc_cs1; + + /* XXX Enable SRFRONIDLEREQ here also? */ + /* + * PWDENA should not be set due to 34xx erratum 1.150 - PWDENA + * can cause random memory corruption + */ + l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) | + (1 << SDRC_POWER_PAGEPOLICY_SHIFT); + sdrc_write_reg(l, SDRC_POWER); + omap2_sms_save_context(); +} diff --git a/arch/arm/mach-omap2/sdrc.h b/arch/arm/mach-omap2/sdrc.h new file mode 100644 index 000000000..45b35422b --- /dev/null +++ b/arch/arm/mach-omap2/sdrc.h @@ -0,0 +1,205 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ARCH_ARM_MACH_OMAP2_SDRC_H +#define __ARCH_ARM_MACH_OMAP2_SDRC_H + +/* + * OMAP2/3 SDRC/SMS macros and prototypes + * + * Copyright (C) 2007-2008, 2012 Texas Instruments, Inc. + * Copyright (C) 2007-2008 Nokia Corporation + * + * Paul Walmsley + * Tony Lindgren + * Richard Woodruff + */ +#undef DEBUG + +#ifndef __ASSEMBLER__ + +#include <linux/io.h> + +extern void __iomem *omap2_sdrc_base; +extern void __iomem *omap2_sms_base; + +#define OMAP_SDRC_REGADDR(reg) (omap2_sdrc_base + (reg)) +#define OMAP_SMS_REGADDR(reg) (omap2_sms_base + (reg)) + +/* SDRC global register get/set */ + +static inline void sdrc_write_reg(u32 val, u16 reg) +{ + writel_relaxed(val, OMAP_SDRC_REGADDR(reg)); +} + +static inline u32 sdrc_read_reg(u16 reg) +{ + return readl_relaxed(OMAP_SDRC_REGADDR(reg)); +} + +/* SMS global register get/set */ + +static inline void sms_write_reg(u32 val, u16 reg) +{ + writel_relaxed(val, OMAP_SMS_REGADDR(reg)); +} + +static inline u32 sms_read_reg(u16 reg) +{ + return readl_relaxed(OMAP_SMS_REGADDR(reg)); +} + +extern void omap2_set_globals_sdrc(void __iomem *sdrc, void __iomem *sms); + + +/** + * struct omap_sdrc_params - SDRC parameters for a given SDRC clock rate + * @rate: SDRC clock rate (in Hz) + * @actim_ctrla: Value to program to SDRC_ACTIM_CTRLA for this rate + * @actim_ctrlb: Value to program to SDRC_ACTIM_CTRLB for this rate + * @rfr_ctrl: Value to program to SDRC_RFR_CTRL for this rate + * @mr: Value to program to SDRC_MR for this rate + * + * This structure holds a pre-computed set of register values for the + * SDRC for a given SDRC clock rate and SDRAM chip. These are + * intended to be pre-computed and specified in an array in the board-*.c + * files. The structure is keyed off the 'rate' field. + */ +struct omap_sdrc_params { + unsigned long rate; + u32 actim_ctrla; + u32 actim_ctrlb; + u32 rfr_ctrl; + u32 mr; +}; + +#ifdef CONFIG_SOC_HAS_OMAP2_SDRC +void omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1); +#else +static inline void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) {}; +#endif + +void omap2_sms_restore_context(void); + +struct memory_timings { + u32 m_type; /* ddr = 1, sdr = 0 */ + u32 dll_mode; /* use lock mode = 1, unlock mode = 0 */ + u32 slow_dll_ctrl; /* unlock mode, dll value for slow speed */ + u32 fast_dll_ctrl; /* unlock mode, dll value for fast speed */ + u32 base_cs; /* base chip select to use for calculations */ +}; + +extern void omap2xxx_sdrc_init_params(u32 force_lock_to_unlock_mode); + +u32 omap2xxx_sdrc_dll_is_unlocked(void); +u32 omap2xxx_sdrc_reprogram(u32 level, u32 force); + + +#else +#define OMAP242X_SDRC_REGADDR(reg) \ + OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg)) +#define OMAP243X_SDRC_REGADDR(reg) \ + OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg)) +#define OMAP34XX_SDRC_REGADDR(reg) \ + OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg)) + +#endif /* __ASSEMBLER__ */ + +/* Minimum frequency that the SDRC DLL can lock at */ +#define MIN_SDRC_DLL_LOCK_FREQ 83000000 + +/* Scale factor for fixed-point arith in omap3_core_dpll_m2_set_rate() */ +#define SDRC_MPURATE_SCALE 8 + +/* 2^SDRC_MPURATE_BASE_SHIFT: MPU MHz that SDRC_MPURATE_LOOPS is defined for */ +#define SDRC_MPURATE_BASE_SHIFT 9 + +/* + * SDRC_MPURATE_LOOPS: Number of MPU loops to execute at + * 2^MPURATE_BASE_SHIFT MHz for SDRC to stabilize + */ +#define SDRC_MPURATE_LOOPS 96 + +/* SDRC register offsets - read/write with sdrc_{read,write}_reg() */ + +#define SDRC_SYSCONFIG 0x010 +#define SDRC_CS_CFG 0x040 +#define SDRC_SHARING 0x044 +#define SDRC_ERR_TYPE 0x04C +#define SDRC_DLLA_CTRL 0x060 +#define SDRC_DLLA_STATUS 0x064 +#define SDRC_DLLB_CTRL 0x068 +#define SDRC_DLLB_STATUS 0x06C +#define SDRC_POWER 0x070 +#define SDRC_MCFG_0 0x080 +#define SDRC_MR_0 0x084 +#define SDRC_EMR2_0 0x08c +#define SDRC_ACTIM_CTRL_A_0 0x09c +#define SDRC_ACTIM_CTRL_B_0 0x0a0 +#define SDRC_RFR_CTRL_0 0x0a4 +#define SDRC_MANUAL_0 0x0a8 +#define SDRC_MCFG_1 0x0B0 +#define SDRC_MR_1 0x0B4 +#define SDRC_EMR2_1 0x0BC +#define SDRC_ACTIM_CTRL_A_1 0x0C4 +#define SDRC_ACTIM_CTRL_B_1 0x0C8 +#define SDRC_RFR_CTRL_1 0x0D4 +#define SDRC_MANUAL_1 0x0D8 + +#define SDRC_POWER_AUTOCOUNT_SHIFT 8 +#define SDRC_POWER_AUTOCOUNT_MASK (0xffff << SDRC_POWER_AUTOCOUNT_SHIFT) +#define SDRC_POWER_CLKCTRL_SHIFT 4 +#define SDRC_POWER_CLKCTRL_MASK (0x3 << SDRC_POWER_CLKCTRL_SHIFT) +#define SDRC_SELF_REFRESH_ON_AUTOCOUNT (0x2 << SDRC_POWER_CLKCTRL_SHIFT) + +/* + * These values represent the number of memory clock cycles between + * autorefresh initiation. They assume 1 refresh per 64 ms (JEDEC), 8192 + * rows per device, and include a subtraction of a 50 cycle window in the + * event that the autorefresh command is delayed due to other SDRC activity. + * The '| 1' sets the ARE field to send one autorefresh when the autorefresh + * counter reaches 0. + * + * These represent optimal values for common parts, it won't work for all. + * As long as you scale down, most parameters are still work, they just + * become sub-optimal. The RFR value goes in the opposite direction. If you + * don't adjust it down as your clock period increases the refresh interval + * will not be met. Setting all parameters for complete worst case may work, + * but may cut memory performance by 2x. Due to errata the DLLs need to be + * unlocked and their value needs run time calibration. A dynamic call is + * need for that as no single right value exists across production samples. + * + * Only the FULL speed values are given. Current code is such that rate + * changes must be made at DPLLoutx2. The actual value adjustment for low + * frequency operation will be handled by omap_set_performance() + * + * By having the boot loader boot up in the fastest L4 speed available likely + * will result in something which you can switch between. + */ +#define SDRC_RFR_CTRL_165MHz (0x00044c00 | 1) +#define SDRC_RFR_CTRL_133MHz (0x0003de00 | 1) +#define SDRC_RFR_CTRL_100MHz (0x0002da01 | 1) +#define SDRC_RFR_CTRL_110MHz (0x0002da01 | 1) /* Need to calc */ +#define SDRC_RFR_CTRL_BYPASS (0x00005000 | 1) /* Need to calc */ + + +/* + * SMS register access + */ + +#define OMAP242X_SMS_REGADDR(reg) \ + (void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE + reg) +#define OMAP243X_SMS_REGADDR(reg) \ + (void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE + reg) +#define OMAP343X_SMS_REGADDR(reg) \ + (void __iomem *)OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE + reg) + +/* SMS register offsets - read/write with sms_{read,write}_reg() */ + +#define SMS_SYSCONFIG 0x010 +/* REVISIT: fill in other SMS registers here */ + + + +#endif diff --git a/arch/arm/mach-omap2/sdrc2xxx.c b/arch/arm/mach-omap2/sdrc2xxx.c new file mode 100644 index 000000000..5a275b4fd --- /dev/null +++ b/arch/arm/mach-omap2/sdrc2xxx.c @@ -0,0 +1,164 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * SDRAM timing related functions for OMAP2xxx + * + * Copyright (C) 2005, 2008 Texas Instruments Inc. + * Copyright (C) 2005, 2008 Nokia Corporation + * + * Tony Lindgren <tony@atomide.com> + * Paul Walmsley + * Richard Woodruff <r-woodruff2@ti.com> + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include "soc.h" +#include "iomap.h" +#include "common.h" +#include "prm2xxx.h" +#include "clock.h" +#include "sdrc.h" +#include "sram.h" + +/* Memory timing, DLL mode flags */ +#define M_DDR 1 +#define M_LOCK_CTRL (1 << 2) +#define M_UNLOCK 0 +#define M_LOCK 1 + + +static struct memory_timings mem_timings; +static u32 curr_perf_level = CORE_CLK_SRC_DPLL_X2; + +static u32 omap2xxx_sdrc_get_slow_dll_ctrl(void) +{ + return mem_timings.slow_dll_ctrl; +} + +static u32 omap2xxx_sdrc_get_fast_dll_ctrl(void) +{ + return mem_timings.fast_dll_ctrl; +} + +static u32 omap2xxx_sdrc_get_type(void) +{ + return mem_timings.m_type; +} + +/* + * Check the DLL lock state, and return tue if running in unlock mode. + * This is needed to compensate for the shifted DLL value in unlock mode. + */ +u32 omap2xxx_sdrc_dll_is_unlocked(void) +{ + /* dlla and dllb are a set */ + u32 dll_state = sdrc_read_reg(SDRC_DLLA_CTRL); + + if ((dll_state & (1 << 2)) == (1 << 2)) + return 1; + else + return 0; +} + +/* + * 'level' is the value to store to CM_CLKSEL2_PLL.CORE_CLK_SRC. + * Practical values are CORE_CLK_SRC_DPLL (for CORE_CLK = DPLL_CLK) or + * CORE_CLK_SRC_DPLL_X2 (for CORE_CLK = * DPLL_CLK * 2) + * + * Used by the clock framework during CORE DPLL changes + */ +u32 omap2xxx_sdrc_reprogram(u32 level, u32 force) +{ + u32 dll_ctrl, m_type; + u32 prev = curr_perf_level; + unsigned long flags; + + if ((curr_perf_level == level) && !force) + return prev; + + if (level == CORE_CLK_SRC_DPLL) + dll_ctrl = omap2xxx_sdrc_get_slow_dll_ctrl(); + else if (level == CORE_CLK_SRC_DPLL_X2) + dll_ctrl = omap2xxx_sdrc_get_fast_dll_ctrl(); + else + return prev; + + m_type = omap2xxx_sdrc_get_type(); + + local_irq_save(flags); + /* + * XXX These calls should be abstracted out through a + * prm2xxx.c function + */ + if (cpu_is_omap2420()) + writel_relaxed(0xffff, OMAP2420_PRCM_VOLTSETUP); + else + writel_relaxed(0xffff, OMAP2430_PRCM_VOLTSETUP); + omap2_sram_reprogram_sdrc(level, dll_ctrl, m_type); + curr_perf_level = level; + local_irq_restore(flags); + + return prev; +} + +/* Used by the clock framework during CORE DPLL changes */ +void omap2xxx_sdrc_init_params(u32 force_lock_to_unlock_mode) +{ + unsigned long dll_cnt; + u32 fast_dll = 0; + + /* DDR = 1, SDR = 0 */ + mem_timings.m_type = !((sdrc_read_reg(SDRC_MR_0) & 0x3) == 0x1); + + /* 2422 es2.05 and beyond has a single SIP DDR instead of 2 like others. + * In the case of 2422, its ok to use CS1 instead of CS0. + */ + if (cpu_is_omap2422()) + mem_timings.base_cs = 1; + else + mem_timings.base_cs = 0; + + if (mem_timings.m_type != M_DDR) + return; + + /* With DDR we need to determine the low frequency DLL value */ + if (((mem_timings.fast_dll_ctrl & (1 << 2)) == M_LOCK_CTRL)) + mem_timings.dll_mode = M_UNLOCK; + else + mem_timings.dll_mode = M_LOCK; + + if (mem_timings.base_cs == 0) { + fast_dll = sdrc_read_reg(SDRC_DLLA_CTRL); + dll_cnt = sdrc_read_reg(SDRC_DLLA_STATUS) & 0xff00; + } else { + fast_dll = sdrc_read_reg(SDRC_DLLB_CTRL); + dll_cnt = sdrc_read_reg(SDRC_DLLB_STATUS) & 0xff00; + } + if (force_lock_to_unlock_mode) { + fast_dll &= ~0xff00; + fast_dll |= dll_cnt; /* Current lock mode */ + } + /* set fast timings with DLL filter disabled */ + mem_timings.fast_dll_ctrl = (fast_dll | (3 << 8)); + + /* No disruptions, DDR will be offline & C-ABI not followed */ + omap2_sram_ddr_init(&mem_timings.slow_dll_ctrl, + mem_timings.fast_dll_ctrl, + mem_timings.base_cs, + force_lock_to_unlock_mode); + mem_timings.slow_dll_ctrl &= 0xff00; /* Keep lock value */ + + /* Turn status into unlock ctrl */ + mem_timings.slow_dll_ctrl |= + ((mem_timings.fast_dll_ctrl & 0xF) | (1 << 2)); + + /* 90 degree phase for anything below 133MHz + disable DLL filter */ + mem_timings.slow_dll_ctrl |= ((1 << 1) | (3 << 8)); +} diff --git a/arch/arm/mach-omap2/sleep24xx.S b/arch/arm/mach-omap2/sleep24xx.S new file mode 100644 index 000000000..84d8c43ad --- /dev/null +++ b/arch/arm/mach-omap2/sleep24xx.S @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * linux/arch/arm/mach-omap2/sleep.S + * + * (C) Copyright 2004 + * Texas Instruments, <www.ti.com> + * Richard Woodruff <r-woodruff2@ti.com> + * + * (C) Copyright 2006 Nokia Corporation + * Fixed idle loop sleep + * Igor Stoppa <igor.stoppa@nokia.com> + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +#include "omap24xx.h" +#include "sdrc.h" + +/* First address of reserved address space? apparently valid for OMAP2 & 3 */ +#define A_SDRC0_V (0xC0000000) + + .text + +/* + * omap24xx_cpu_suspend() - Forces OMAP into deep sleep state by completing + * SDRC shutdown then ARM shutdown. Upon wake MPU is back on so just restore + * SDRC. + * + * Input: + * R0 : DLL ctrl value pre-Sleep + * R1 : SDRC_DLLA_CTRL + * R2 : SDRC_POWER + * + * The if the DPLL is going to AutoIdle. It seems like the DPLL may be back on + * when we get called, but the DLL probably isn't. We will wait a bit more in + * case the DPLL isn't quite there yet. The code will wait on DLL for DDR even + * if in unlocked mode. + * + * For less than 242x-ES2.2 upon wake from a sleep mode where the external + * oscillator was stopped, a timing bug exists where a non-stabilized 12MHz + * clock can pass into the PRCM can cause problems at DSP and IVA. + * To work around this the code will switch to the 32kHz source prior to sleep. + * Post sleep we will shift back to using the DPLL. Apparently, + * CM_IDLEST_CLKGEN does not reflect the full clock change so you need to wait + * 3x12MHz + 3x32kHz clocks for a full switch. + * + * The DLL load value is not kept in RETENTION or OFF. It needs to be restored + * at wake + */ + .align 3 +ENTRY(omap24xx_cpu_suspend) + stmfd sp!, {r0 - r12, lr} @ save registers on stack + mov r3, #0x0 @ clear for mcr call + mcr p15, 0, r3, c7, c10, 4 @ memory barrier, hope SDR/DDR finished + nop + nop + ldr r4, [r2] @ read SDRC_POWER + orr r4, r4, #0x40 @ enable self refresh on idle req + mov r5, #0x2000 @ set delay (DPLL relock + DLL relock) + str r4, [r2] @ make it so + nop + mcr p15, 0, r3, c7, c0, 4 @ wait for interrupt + nop +loop: + subs r5, r5, #0x1 @ awake, wait just a bit + bne loop + + /* The DPLL has to be on before we take the DDR out of self refresh */ + bic r4, r4, #0x40 @ now clear self refresh bit. + str r4, [r2] @ write to SDRC_POWER + ldr r4, A_SDRC0 @ make a clock happen + ldr r4, [r4] @ read A_SDRC0 + nop @ start auto refresh only after clk ok + movs r0, r0 @ see if DDR or SDR + strne r0, [r1] @ rewrite DLLA to force DLL reload + addne r1, r1, #0x8 @ move to DLLB + strne r0, [r1] @ rewrite DLLB to force DLL reload + + mov r5, #0x1000 +loop2: + subs r5, r5, #0x1 + bne loop2 + /* resume*/ + ldmfd sp!, {r0 - r12, pc} @ restore regs and return + +A_SDRC0: + .word A_SDRC0_V + +ENTRY(omap24xx_cpu_suspend_sz) + .word . - omap24xx_cpu_suspend diff --git a/arch/arm/mach-omap2/sleep33xx.S b/arch/arm/mach-omap2/sleep33xx.S new file mode 100644 index 000000000..3bfd8b5e0 --- /dev/null +++ b/arch/arm/mach-omap2/sleep33xx.S @@ -0,0 +1,262 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Low level suspend code for AM33XX SoCs + * + * Copyright (C) 2012-2018 Texas Instruments Incorporated - https://www.ti.com/ + * Dave Gerlach, Vaibhav Bedia + */ + +#include <linux/linkage.h> +#include <linux/platform_data/pm33xx.h> +#include <linux/ti-emif-sram.h> +#include <asm/assembler.h> +#include <asm/page.h> + +#include "iomap.h" +#include "cm33xx.h" +#include "pm-asm-offsets.h" + +#define AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED 0x00030000 +#define AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE 0x0003 +#define AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE 0x0002 + +/* replicated define because linux/bitops.h cannot be included in assembly */ +#define BIT(nr) (1 << (nr)) + + .arm + .arch armv7-a + .align 3 + +ENTRY(am33xx_do_wfi) + stmfd sp!, {r4 - r11, lr} @ save registers on stack + + /* Save wfi_flags arg to data space */ + mov r4, r0 + adr r3, am33xx_pm_ro_sram_data + ldr r2, [r3, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + str r4, [r2, #AMX3_PM_WFI_FLAGS_OFFSET] + + /* Only flush cache is we know we are losing MPU context */ + tst r4, #WFI_FLAG_FLUSH_CACHE + beq cache_skip_flush + + /* + * Flush all data from the L1 and L2 data cache before disabling + * SCTLR.C bit. + */ + ldr r1, kernel_flush + blx r1 + + /* + * Clear the SCTLR.C bit to prevent further data cache + * allocation. Clearing SCTLR.C would make all the data accesses + * strongly ordered and would not hit the cache. + */ + mrc p15, 0, r0, c1, c0, 0 + bic r0, r0, #(1 << 2) @ Disable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + + /* + * Invalidate L1 and L2 data cache. + */ + ldr r1, kernel_flush + blx r1 + + adr r3, am33xx_pm_ro_sram_data + ldr r2, [r3, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + ldr r4, [r2, #AMX3_PM_WFI_FLAGS_OFFSET] + +cache_skip_flush: + /* Check if we want self refresh */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_enter_sr + + adr r9, am33xx_emif_sram_table + + ldr r3, [r9, #EMIF_PM_ENTER_SR_OFFSET] + blx r3 + +emif_skip_enter_sr: + /* Only necessary if PER is losing context */ + tst r4, #WFI_FLAG_SAVE_EMIF + beq emif_skip_save + + ldr r3, [r9, #EMIF_PM_SAVE_CONTEXT_OFFSET] + blx r3 + +emif_skip_save: + /* Only can disable EMIF if we have entered self refresh */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_disable + + /* Disable EMIF */ + ldr r1, virt_emif_clkctrl + ldr r2, [r1] + bic r2, r2, #AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE + str r2, [r1] + + ldr r1, virt_emif_clkctrl +wait_emif_disable: + ldr r2, [r1] + mov r3, #AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED + cmp r2, r3 + bne wait_emif_disable + +emif_skip_disable: + tst r4, #WFI_FLAG_WAKE_M3 + beq wkup_m3_skip + + /* + * For the MPU WFI to be registered as an interrupt + * to WKUP_M3, MPU_CLKCTRL.MODULEMODE needs to be set + * to DISABLED + */ + ldr r1, virt_mpu_clkctrl + ldr r2, [r1] + bic r2, r2, #AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE + str r2, [r1] + +wkup_m3_skip: + /* + * Execute an ISB instruction to ensure that all of the + * CP15 register changes have been committed. + */ + isb + + /* + * Execute a barrier instruction to ensure that all cache, + * TLB and branch predictor maintenance operations issued + * have completed. + */ + dsb + dmb + + /* + * Execute a WFI instruction and wait until the + * STANDBYWFI output is asserted to indicate that the + * CPU is in idle and low power state. CPU can specualatively + * prefetch the instructions so add NOPs after WFI. Thirteen + * NOPs as per Cortex-A8 pipeline. + */ + wfi + + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + + /* We come here in case of an abort due to a late interrupt */ + + /* Set MPU_CLKCTRL.MODULEMODE back to ENABLE */ + ldr r1, virt_mpu_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] + + /* Re-enable EMIF */ + ldr r1, virt_emif_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] +wait_emif_enable: + ldr r3, [r1] + cmp r2, r3 + bne wait_emif_enable + + /* Only necessary if PER is losing context */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_exit_sr_abt + + adr r9, am33xx_emif_sram_table + ldr r1, [r9, #EMIF_PM_ABORT_SR_OFFSET] + blx r1 + +emif_skip_exit_sr_abt: + tst r4, #WFI_FLAG_FLUSH_CACHE + beq cache_skip_restore + + /* + * Set SCTLR.C bit to allow data cache allocation + */ + mrc p15, 0, r0, c1, c0, 0 + orr r0, r0, #(1 << 2) @ Enable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + +cache_skip_restore: + /* Let the suspend code know about the abort */ + mov r0, #1 + ldmfd sp!, {r4 - r11, pc} @ restore regs and return +ENDPROC(am33xx_do_wfi) + + .align +ENTRY(am33xx_resume_offset) + .word . - am33xx_do_wfi + +ENTRY(am33xx_resume_from_deep_sleep) + /* Re-enable EMIF */ + ldr r0, phys_emif_clkctrl + mov r1, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r1, [r0] +wait_emif_enable1: + ldr r2, [r0] + cmp r1, r2 + bne wait_emif_enable1 + + adr r9, am33xx_emif_sram_table + + ldr r1, [r9, #EMIF_PM_RESTORE_CONTEXT_OFFSET] + blx r1 + + ldr r1, [r9, #EMIF_PM_EXIT_SR_OFFSET] + blx r1 + +resume_to_ddr: + /* We are back. Branch to the common CPU resume routine */ + mov r0, #0 + ldr pc, resume_addr +ENDPROC(am33xx_resume_from_deep_sleep) + +/* + * Local variables + */ + .align +kernel_flush: + .word v7_flush_dcache_all +virt_mpu_clkctrl: + .word AM33XX_CM_MPU_MPU_CLKCTRL +virt_emif_clkctrl: + .word AM33XX_CM_PER_EMIF_CLKCTRL +phys_emif_clkctrl: + .word (AM33XX_CM_BASE + AM33XX_CM_PER_MOD + \ + AM33XX_CM_PER_EMIF_CLKCTRL_OFFSET) + +.align 3 +/* DDR related defines */ +am33xx_emif_sram_table: + .space EMIF_PM_FUNCTIONS_SIZE + +ENTRY(am33xx_pm_sram) + .word am33xx_do_wfi + .word am33xx_do_wfi_sz + .word am33xx_resume_offset + .word am33xx_emif_sram_table + .word am33xx_pm_ro_sram_data + +resume_addr: +.word cpu_resume - PAGE_OFFSET + 0x80000000 + +.align 3 +ENTRY(am33xx_pm_ro_sram_data) + .space AMX3_PM_RO_SRAM_DATA_SIZE + +ENTRY(am33xx_do_wfi_sz) + .word . - am33xx_do_wfi diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S new file mode 100644 index 000000000..781a131b4 --- /dev/null +++ b/arch/arm/mach-omap2/sleep34xx.S @@ -0,0 +1,569 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * (C) Copyright 2007 + * Texas Instruments + * Karthik Dasu <karthik-dp@ti.com> + * + * (C) Copyright 2004 + * Texas Instruments, <www.ti.com> + * Richard Woodruff <r-woodruff2@ti.com> + */ +#include <linux/linkage.h> + +#include <asm/assembler.h> + +#include "omap34xx.h" +#include "iomap.h" +#include "cm3xxx.h" +#include "prm3xxx.h" +#include "sdrc.h" +#include "sram.h" +#include "control.h" + +/* + * Registers access definitions + */ +#define SDRC_SCRATCHPAD_SEM_OFFS 0xc +#define SDRC_SCRATCHPAD_SEM_V OMAP343X_SCRATCHPAD_REGADDR\ + (SDRC_SCRATCHPAD_SEM_OFFS) +#define PM_PREPWSTST_CORE_P OMAP3430_PRM_BASE + CORE_MOD +\ + OMAP3430_PM_PREPWSTST +#define PM_PWSTCTRL_MPU_P OMAP3430_PRM_BASE + MPU_MOD + OMAP2_PM_PWSTCTRL +#define CM_IDLEST1_CORE_V OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST1) +#define CM_IDLEST_CKGEN_V OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST) +#define SRAM_BASE_P OMAP3_SRAM_PA +#define CONTROL_STAT OMAP343X_CTRL_BASE + OMAP343X_CONTROL_STATUS +#define CONTROL_MEM_RTA_CTRL (OMAP343X_CTRL_BASE +\ + OMAP36XX_CONTROL_MEM_RTA_CTRL) + +/* Move this as correct place is available */ +#define SCRATCHPAD_MEM_OFFS 0x310 +#define SCRATCHPAD_BASE_P (OMAP343X_CTRL_BASE +\ + OMAP343X_CONTROL_MEM_WKUP +\ + SCRATCHPAD_MEM_OFFS) +#define SDRC_POWER_V OMAP34XX_SDRC_REGADDR(SDRC_POWER) +#define SDRC_SYSCONFIG_P (OMAP343X_SDRC_BASE + SDRC_SYSCONFIG) +#define SDRC_MR_0_P (OMAP343X_SDRC_BASE + SDRC_MR_0) +#define SDRC_EMR2_0_P (OMAP343X_SDRC_BASE + SDRC_EMR2_0) +#define SDRC_MANUAL_0_P (OMAP343X_SDRC_BASE + SDRC_MANUAL_0) +#define SDRC_MR_1_P (OMAP343X_SDRC_BASE + SDRC_MR_1) +#define SDRC_EMR2_1_P (OMAP343X_SDRC_BASE + SDRC_EMR2_1) +#define SDRC_MANUAL_1_P (OMAP343X_SDRC_BASE + SDRC_MANUAL_1) +#define SDRC_DLLA_STATUS_V OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS) +#define SDRC_DLLA_CTRL_V OMAP34XX_SDRC_REGADDR(SDRC_DLLA_CTRL) + +/* + * This file needs be built unconditionally as ARM to interoperate correctly + * with non-Thumb-2-capable firmware. + */ + .arm + +/* + * API functions + */ + + .text +/* + * L2 cache needs to be toggled for stable OFF mode functionality on 3630. + * This function sets up a flag that will allow for this toggling to take + * place on 3630. Hopefully some version in the future may not need this. + */ +ENTRY(enable_omap3630_toggle_l2_on_restore) + stmfd sp!, {lr} @ save registers on stack + /* Setup so that we will disable and enable l2 */ + mov r1, #0x1 + adr r3, l2dis_3630_offset + ldr r2, [r3] @ value for offset + str r1, [r2, r3] @ write to l2dis_3630 + ldmfd sp!, {pc} @ restore regs and return +ENDPROC(enable_omap3630_toggle_l2_on_restore) + +/* + * Function to call rom code to save secure ram context. + * + * r0 = physical address of the parameters + */ + .arch armv7-a + .arch_extension sec +ENTRY(save_secure_ram_context) + stmfd sp!, {r4 - r11, lr} @ save registers on stack + mov r3, r0 @ physical address of parameters + mov r0, #25 @ set service ID for PPA + mov r12, r0 @ copy secure service ID in r12 + mov r1, #0 @ set task id for ROM code in r1 + mov r2, #4 @ set some flags in r2, r6 + mov r6, #0xff + dsb @ data write barrier + dmb @ data memory barrier + smc #1 @ call SMI monitor (smi #1) + nop + nop + nop + nop + ldmfd sp!, {r4 - r11, pc} +ENDPROC(save_secure_ram_context) + +/* + * ====================== + * == Idle entry point == + * ====================== + */ + +/* + * Forces OMAP into idle state + * + * omap34xx_cpu_suspend() - This bit of code saves the CPU context if needed + * and executes the WFI instruction. Calling WFI effectively changes the + * power domains states to the desired target power states. + * + * + * Notes: + * - only the minimum set of functions gets copied to internal SRAM at boot + * and after wake-up from OFF mode, cf. omap_push_sram_idle. The function + * pointers in SDRAM or SRAM are called depending on the desired low power + * target state. + * - when the OMAP wakes up it continues at different execution points + * depending on the low power mode (non-OFF vs OFF modes), + * cf. 'Resume path for xxx mode' comments. + */ + .align 3 +ENTRY(omap34xx_cpu_suspend) + stmfd sp!, {r4 - r11, lr} @ save registers on stack + + /* + * r0 contains information about saving context: + * 0 - No context lost + * 1 - Only L1 and logic lost + * 2 - Only L2 lost (Even L1 is retained we clean it along with L2) + * 3 - Both L1 and L2 lost and logic lost + */ + + /* + * For OFF mode: save context and jump to WFI in SDRAM (omap3_do_wfi) + * For non-OFF modes: jump to the WFI code in SRAM (omap3_do_wfi_sram) + */ + ldr r4, omap3_do_wfi_sram_addr + ldr r5, [r4] + cmp r0, #0x0 @ If no context save required, + bxeq r5 @ jump to the WFI code in SRAM + + + /* Otherwise fall through to the save context code */ +save_context_wfi: + /* + * jump out to kernel flush routine + * - reuse that code is better + * - it executes in a cached space so is faster than refetch per-block + * - should be faster and will change with kernel + * - 'might' have to copy address, load and jump to it + * Flush all data from the L1 data cache before disabling + * SCTLR.C bit. + */ + ldr r1, kernel_flush + mov lr, pc + bx r1 + + /* + * Clear the SCTLR.C bit to prevent further data cache + * allocation. Clearing SCTLR.C would make all the data accesses + * strongly ordered and would not hit the cache. + */ + mrc p15, 0, r0, c1, c0, 0 + bic r0, r0, #(1 << 2) @ Disable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + + /* + * Invalidate L1 data cache. Even though only invalidate is + * necessary exported flush API is used here. Doing clean + * on already clean cache would be almost NOP. + */ + ldr r1, kernel_flush + blx r1 + b omap3_do_wfi +ENDPROC(omap34xx_cpu_suspend) +omap3_do_wfi_sram_addr: + .word omap3_do_wfi_sram +kernel_flush: + .word v7_flush_dcache_all + +/* =================================== + * == WFI instruction => Enter idle == + * =================================== + */ + +/* + * Do WFI instruction + * Includes the resume path for non-OFF modes + * + * This code gets copied to internal SRAM and is accessible + * from both SDRAM and SRAM: + * - executed from SRAM for non-off modes (omap3_do_wfi_sram), + * - executed from SDRAM for OFF mode (omap3_do_wfi). + */ + .align 3 +ENTRY(omap3_do_wfi) + ldr r4, sdrc_power @ read the SDRC_POWER register + ldr r5, [r4] @ read the contents of SDRC_POWER + orr r5, r5, #0x40 @ enable self refresh on idle req + str r5, [r4] @ write back to SDRC_POWER register + + /* Data memory barrier and Data sync barrier */ + dsb + dmb + +/* + * =================================== + * == WFI instruction => Enter idle == + * =================================== + */ + wfi @ wait for interrupt + +/* + * =================================== + * == Resume path for non-OFF modes == + * =================================== + */ + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + +/* + * This function implements the erratum ID i581 WA: + * SDRC state restore before accessing the SDRAM + * + * Only used at return from non-OFF mode. For OFF + * mode the ROM code configures the SDRC and + * the DPLL before calling the restore code directly + * from DDR. + */ + +/* Make sure SDRC accesses are ok */ +wait_sdrc_ok: + +/* DPLL3 must be locked before accessing the SDRC. Maybe the HW ensures this */ + ldr r4, cm_idlest_ckgen +wait_dpll3_lock: + ldr r5, [r4] + tst r5, #1 + beq wait_dpll3_lock + + ldr r4, cm_idlest1_core +wait_sdrc_ready: + ldr r5, [r4] + tst r5, #0x2 + bne wait_sdrc_ready + /* allow DLL powerdown upon hw idle req */ + ldr r4, sdrc_power + ldr r5, [r4] + bic r5, r5, #0x40 + str r5, [r4] + +is_dll_in_lock_mode: + /* Is dll in lock mode? */ + ldr r4, sdrc_dlla_ctrl + ldr r5, [r4] + tst r5, #0x4 + bne exit_nonoff_modes @ Return if locked + /* wait till dll locks */ +wait_dll_lock_timed: + ldr r4, sdrc_dlla_status + /* Wait 20uS for lock */ + mov r6, #8 +wait_dll_lock: + subs r6, r6, #0x1 + beq kick_dll + ldr r5, [r4] + and r5, r5, #0x4 + cmp r5, #0x4 + bne wait_dll_lock + b exit_nonoff_modes @ Return when locked + + /* disable/reenable DLL if not locked */ +kick_dll: + ldr r4, sdrc_dlla_ctrl + ldr r5, [r4] + mov r6, r5 + bic r6, #(1<<3) @ disable dll + str r6, [r4] + dsb + orr r6, r6, #(1<<3) @ enable dll + str r6, [r4] + dsb + b wait_dll_lock_timed + +exit_nonoff_modes: + /* Re-enable C-bit if needed */ + mrc p15, 0, r0, c1, c0, 0 + tst r0, #(1 << 2) @ Check C bit enabled? + orreq r0, r0, #(1 << 2) @ Enable the C bit if cleared + mcreq p15, 0, r0, c1, c0, 0 + isb + +/* + * =================================== + * == Exit point from non-OFF modes == + * =================================== + */ + ldmfd sp!, {r4 - r11, pc} @ restore regs and return +ENDPROC(omap3_do_wfi) +sdrc_power: + .word SDRC_POWER_V +cm_idlest1_core: + .word CM_IDLEST1_CORE_V +cm_idlest_ckgen: + .word CM_IDLEST_CKGEN_V +sdrc_dlla_status: + .word SDRC_DLLA_STATUS_V +sdrc_dlla_ctrl: + .word SDRC_DLLA_CTRL_V +ENTRY(omap3_do_wfi_sz) + .word . - omap3_do_wfi + + +/* + * ============================== + * == Resume path for OFF mode == + * ============================== + */ + +/* + * The restore_* functions are called by the ROM code + * when back from WFI in OFF mode. + * Cf. the get_*restore_pointer functions. + * + * restore_es3: applies to 34xx >= ES3.0 + * restore_3630: applies to 36xx + * restore: common code for 3xxx + * + * Note: when back from CORE and MPU OFF mode we are running + * from SDRAM, without MMU, without the caches and prediction. + * Also the SRAM content has been cleared. + */ +ENTRY(omap3_restore_es3) + ldr r5, pm_prepwstst_core_p + ldr r4, [r5] + and r4, r4, #0x3 + cmp r4, #0x0 @ Check if previous power state of CORE is OFF + bne omap3_restore @ Fall through to OMAP3 common code + adr r0, es3_sdrc_fix + ldr r1, sram_base + ldr r2, es3_sdrc_fix_sz + mov r2, r2, ror #2 +copy_to_sram: + ldmia r0!, {r3} @ val = *src + stmia r1!, {r3} @ *dst = val + subs r2, r2, #0x1 @ num_words-- + bne copy_to_sram + ldr r1, sram_base + blx r1 + b omap3_restore @ Fall through to OMAP3 common code +ENDPROC(omap3_restore_es3) + +ENTRY(omap3_restore_3630) + ldr r1, pm_prepwstst_core_p + ldr r2, [r1] + and r2, r2, #0x3 + cmp r2, #0x0 @ Check if previous power state of CORE is OFF + bne omap3_restore @ Fall through to OMAP3 common code + /* Disable RTA before giving control */ + ldr r1, control_mem_rta + mov r2, #OMAP36XX_RTA_DISABLE + str r2, [r1] +ENDPROC(omap3_restore_3630) + + /* Fall through to common code for the remaining logic */ + +ENTRY(omap3_restore) + /* + * Read the pwstctrl register to check the reason for mpu reset. + * This tells us what was lost. + */ + ldr r1, pm_pwstctrl_mpu + ldr r2, [r1] + and r2, r2, #0x3 + cmp r2, #0x0 @ Check if target power state was OFF or RET + bne logic_l1_restore + + adr r1, l2dis_3630_offset @ address for offset + ldr r0, [r1] @ value for offset + ldr r0, [r1, r0] @ value at l2dis_3630 + cmp r0, #0x1 @ should we disable L2 on 3630? + bne skipl2dis + mrc p15, 0, r0, c1, c0, 1 + bic r0, r0, #2 @ disable L2 cache + mcr p15, 0, r0, c1, c0, 1 +skipl2dis: + ldr r0, control_stat + ldr r1, [r0] + and r1, #0x700 + cmp r1, #0x300 + beq l2_inv_gp + adr r0, l2_inv_api_params_offset + ldr r3, [r0] + add r3, r3, r0 @ r3 points to dummy parameters + mov r0, #40 @ set service ID for PPA + mov r12, r0 @ copy secure Service ID in r12 + mov r1, #0 @ set task id for ROM code in r1 + mov r2, #4 @ set some flags in r2, r6 + mov r6, #0xff + dsb @ data write barrier + dmb @ data memory barrier + smc #1 @ call SMI monitor (smi #1) + /* Write to Aux control register to set some bits */ + mov r0, #42 @ set service ID for PPA + mov r12, r0 @ copy secure Service ID in r12 + mov r1, #0 @ set task id for ROM code in r1 + mov r2, #4 @ set some flags in r2, r6 + mov r6, #0xff + ldr r4, scratchpad_base + ldr r3, [r4, #0xBC] @ r3 points to parameters + dsb @ data write barrier + dmb @ data memory barrier + smc #1 @ call SMI monitor (smi #1) + +#ifdef CONFIG_OMAP3_L2_AUX_SECURE_SAVE_RESTORE + /* Restore L2 aux control register */ + @ set service ID for PPA + mov r0, #CONFIG_OMAP3_L2_AUX_SECURE_SERVICE_SET_ID + mov r12, r0 @ copy service ID in r12 + mov r1, #0 @ set task ID for ROM code in r1 + mov r2, #4 @ set some flags in r2, r6 + mov r6, #0xff + ldr r4, scratchpad_base + ldr r3, [r4, #0xBC] + adds r3, r3, #8 @ r3 points to parameters + dsb @ data write barrier + dmb @ data memory barrier + smc #1 @ call SMI monitor (smi #1) +#endif + b logic_l1_restore + + .align +l2_inv_api_params_offset: + .long l2_inv_api_params - . +l2_inv_gp: + /* Execute smi to invalidate L2 cache */ + mov r12, #0x1 @ set up to invalidate L2 + smc #0 @ Call SMI monitor (smieq) + /* Write to Aux control register to set some bits */ + ldr r4, scratchpad_base + ldr r3, [r4,#0xBC] + ldr r0, [r3,#4] + mov r12, #0x3 + smc #0 @ Call SMI monitor (smieq) + ldr r4, scratchpad_base + ldr r3, [r4,#0xBC] + ldr r0, [r3,#12] + mov r12, #0x2 + smc #0 @ Call SMI monitor (smieq) +logic_l1_restore: + adr r0, l2dis_3630_offset @ address for offset + ldr r1, [r0] @ value for offset + ldr r1, [r0, r1] @ value at l2dis_3630 + cmp r1, #0x1 @ Test if L2 re-enable needed on 3630 + bne skipl2reen + mrc p15, 0, r1, c1, c0, 1 + orr r1, r1, #2 @ re-enable L2 cache + mcr p15, 0, r1, c1, c0, 1 +skipl2reen: + + /* Now branch to the common CPU resume function */ + b cpu_resume +ENDPROC(omap3_restore) + + .ltorg + +/* + * Local variables + */ +pm_prepwstst_core_p: + .word PM_PREPWSTST_CORE_P +pm_pwstctrl_mpu: + .word PM_PWSTCTRL_MPU_P +scratchpad_base: + .word SCRATCHPAD_BASE_P +sram_base: + .word SRAM_BASE_P + 0x8000 +control_stat: + .word CONTROL_STAT +control_mem_rta: + .word CONTROL_MEM_RTA_CTRL +l2dis_3630_offset: + .long l2dis_3630 - . + + .data + .align 2 +l2dis_3630: + .word 0 + + .data + .align 2 +l2_inv_api_params: + .word 0x1, 0x00 + +/* + * Internal functions + */ + +/* + * This function implements the erratum ID i443 WA, applies to 34xx >= ES3.0 + * Copied to and run from SRAM in order to reconfigure the SDRC parameters. + */ + .text + .align 3 +ENTRY(es3_sdrc_fix) + ldr r4, sdrc_syscfg @ get config addr + ldr r5, [r4] @ get value + tst r5, #0x100 @ is part access blocked + it eq + biceq r5, r5, #0x100 @ clear bit if set + str r5, [r4] @ write back change + ldr r4, sdrc_mr_0 @ get config addr + ldr r5, [r4] @ get value + str r5, [r4] @ write back change + ldr r4, sdrc_emr2_0 @ get config addr + ldr r5, [r4] @ get value + str r5, [r4] @ write back change + ldr r4, sdrc_manual_0 @ get config addr + mov r5, #0x2 @ autorefresh command + str r5, [r4] @ kick off refreshes + ldr r4, sdrc_mr_1 @ get config addr + ldr r5, [r4] @ get value + str r5, [r4] @ write back change + ldr r4, sdrc_emr2_1 @ get config addr + ldr r5, [r4] @ get value + str r5, [r4] @ write back change + ldr r4, sdrc_manual_1 @ get config addr + mov r5, #0x2 @ autorefresh command + str r5, [r4] @ kick off refreshes + bx lr + +/* + * Local variables + */ + .align +sdrc_syscfg: + .word SDRC_SYSCONFIG_P +sdrc_mr_0: + .word SDRC_MR_0_P +sdrc_emr2_0: + .word SDRC_EMR2_0_P +sdrc_manual_0: + .word SDRC_MANUAL_0_P +sdrc_mr_1: + .word SDRC_MR_1_P +sdrc_emr2_1: + .word SDRC_EMR2_1_P +sdrc_manual_1: + .word SDRC_MANUAL_1_P +ENDPROC(es3_sdrc_fix) +ENTRY(es3_sdrc_fix_sz) + .word . - es3_sdrc_fix diff --git a/arch/arm/mach-omap2/sleep43xx.S b/arch/arm/mach-omap2/sleep43xx.S new file mode 100644 index 000000000..ec0972a48 --- /dev/null +++ b/arch/arm/mach-omap2/sleep43xx.S @@ -0,0 +1,493 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Low level suspend code for AM43XX SoCs + * + * Copyright (C) 2013-2018 Texas Instruments Incorporated - https://www.ti.com/ + * Dave Gerlach, Vaibhav Bedia + */ + +#include <linux/linkage.h> +#include <linux/ti-emif-sram.h> +#include <linux/platform_data/pm33xx.h> +#include <asm/assembler.h> +#include <asm/hardware/cache-l2x0.h> +#include <asm/page.h> + +#include "cm33xx.h" +#include "common.h" +#include "iomap.h" +#include "omap-secure.h" +#include "omap44xx.h" +#include "pm-asm-offsets.h" +#include "prm33xx.h" +#include "prcm43xx.h" + +/* replicated define because linux/bitops.h cannot be included in assembly */ +#define BIT(nr) (1 << (nr)) + +#define AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED 0x00030000 +#define AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE 0x0003 +#define AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE 0x0002 + +#define AM43XX_EMIF_POWEROFF_ENABLE 0x1 +#define AM43XX_EMIF_POWEROFF_DISABLE 0x0 + +#define AM43XX_CM_CLKSTCTRL_CLKTRCTRL_SW_SLEEP 0x1 +#define AM43XX_CM_CLKSTCTRL_CLKTRCTRL_HW_AUTO 0x3 + +#define AM43XX_CM_BASE 0x44DF0000 + +#define AM43XX_CM_REGADDR(inst, reg) \ + AM33XX_L4_WK_IO_ADDRESS(AM43XX_CM_BASE + (inst) + (reg)) + +#define AM43XX_CM_MPU_CLKSTCTRL AM43XX_CM_REGADDR(AM43XX_CM_MPU_INST, \ + AM43XX_CM_MPU_MPU_CDOFFS) +#define AM43XX_CM_MPU_MPU_CLKCTRL AM43XX_CM_REGADDR(AM43XX_CM_MPU_INST, \ + AM43XX_CM_MPU_MPU_CLKCTRL_OFFSET) +#define AM43XX_CM_PER_EMIF_CLKCTRL AM43XX_CM_REGADDR(AM43XX_CM_PER_INST, \ + AM43XX_CM_PER_EMIF_CLKCTRL_OFFSET) +#define AM43XX_PRM_EMIF_CTRL_OFFSET 0x0030 + +#define RTC_SECONDS_REG 0x0 +#define RTC_PMIC_REG 0x98 +#define RTC_PMIC_POWER_EN BIT(16) +#define RTC_PMIC_EXT_WAKEUP_STS BIT(12) +#define RTC_PMIC_EXT_WAKEUP_POL BIT(4) +#define RTC_PMIC_EXT_WAKEUP_EN BIT(0) + + .arm + .arch armv7-a + .arch_extension sec + .align 3 + +ENTRY(am43xx_do_wfi) + stmfd sp!, {r4 - r11, lr} @ save registers on stack + + /* Save wfi_flags arg to data space */ + mov r4, r0 + adr r3, am43xx_pm_ro_sram_data + ldr r2, [r3, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + str r4, [r2, #AMX3_PM_WFI_FLAGS_OFFSET] + +#ifdef CONFIG_CACHE_L2X0 + /* Retrieve l2 cache virt address BEFORE we shut off EMIF */ + ldr r1, get_l2cache_base + blx r1 + mov r8, r0 +#endif + + /* Only flush cache is we know we are losing MPU context */ + tst r4, #WFI_FLAG_FLUSH_CACHE + beq cache_skip_flush + + /* + * Flush all data from the L1 and L2 data cache before disabling + * SCTLR.C bit. + */ + ldr r1, kernel_flush + blx r1 + + /* + * Clear the SCTLR.C bit to prevent further data cache + * allocation. Clearing SCTLR.C would make all the data accesses + * strongly ordered and would not hit the cache. + */ + mrc p15, 0, r0, c1, c0, 0 + bic r0, r0, #(1 << 2) @ Disable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + dsb + + /* + * Invalidate L1 and L2 data cache. + */ + ldr r1, kernel_flush + blx r1 + +#ifdef CONFIG_CACHE_L2X0 + /* + * Clean and invalidate the L2 cache. + */ +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x03 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + dsb + smc #0 + dsb +#endif + mov r0, r8 + adr r4, am43xx_pm_ro_sram_data + ldr r3, [r4, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + + mov r2, r0 + ldr r0, [r2, #L2X0_AUX_CTRL] + str r0, [r3, #AMX3_PM_L2_AUX_CTRL_VAL_OFFSET] + ldr r0, [r2, #L310_PREFETCH_CTRL] + str r0, [r3, #AMX3_PM_L2_PREFETCH_CTRL_VAL_OFFSET] + + ldr r0, l2_val + str r0, [r2, #L2X0_CLEAN_INV_WAY] +wait: + ldr r0, [r2, #L2X0_CLEAN_INV_WAY] + ldr r1, l2_val + ands r0, r0, r1 + bne wait +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x00 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + dsb + smc #0 + dsb +#endif +l2x_sync: + mov r0, r8 + mov r2, r0 + mov r0, #0x0 + str r0, [r2, #L2X0_CACHE_SYNC] +sync: + ldr r0, [r2, #L2X0_CACHE_SYNC] + ands r0, r0, #0x1 + bne sync +#endif + + /* Restore wfi_flags */ + adr r3, am43xx_pm_ro_sram_data + ldr r2, [r3, #AMX3_PM_RO_SRAM_DATA_VIRT_OFFSET] + ldr r4, [r2, #AMX3_PM_WFI_FLAGS_OFFSET] + +cache_skip_flush: + /* + * If we are trying to enter RTC+DDR mode we must perform + * a read from the rtc address space to ensure translation + * presence in the TLB to avoid page table walk after DDR + * is unavailable. + */ + tst r4, #WFI_FLAG_RTC_ONLY + beq skip_rtc_va_refresh + + adr r3, am43xx_pm_ro_sram_data + ldr r1, [r3, #AMX3_PM_RTC_BASE_VIRT_OFFSET] + ldr r0, [r1] + +skip_rtc_va_refresh: + /* Check if we want self refresh */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_enter_sr + + adr r9, am43xx_emif_sram_table + + ldr r3, [r9, #EMIF_PM_ENTER_SR_OFFSET] + blx r3 + +emif_skip_enter_sr: + /* Only necessary if PER is losing context */ + tst r4, #WFI_FLAG_SAVE_EMIF + beq emif_skip_save + + ldr r3, [r9, #EMIF_PM_SAVE_CONTEXT_OFFSET] + blx r3 + +emif_skip_save: + /* Only can disable EMIF if we have entered self refresh */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_disable + + /* Disable EMIF */ + ldr r1, am43xx_virt_emif_clkctrl + ldr r2, [r1] + bic r2, r2, #AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE + str r2, [r1] + +wait_emif_disable: + ldr r2, [r1] + mov r3, #AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED + cmp r2, r3 + bne wait_emif_disable + +emif_skip_disable: + tst r4, #WFI_FLAG_RTC_ONLY + beq skip_rtc_only + + adr r3, am43xx_pm_ro_sram_data + ldr r1, [r3, #AMX3_PM_RTC_BASE_VIRT_OFFSET] + + ldr r0, [r1, #RTC_PMIC_REG] + orr r0, r0, #RTC_PMIC_POWER_EN + orr r0, r0, #RTC_PMIC_EXT_WAKEUP_STS + orr r0, r0, #RTC_PMIC_EXT_WAKEUP_EN + orr r0, r0, #RTC_PMIC_EXT_WAKEUP_POL + str r0, [r1, #RTC_PMIC_REG] + ldr r0, [r1, #RTC_PMIC_REG] + /* Wait for 2 seconds to lose power */ + mov r3, #2 + ldr r2, [r1, #RTC_SECONDS_REG] +rtc_loop: + ldr r0, [r1, #RTC_SECONDS_REG] + cmp r0, r2 + beq rtc_loop + mov r2, r0 + subs r3, r3, #1 + bne rtc_loop + + b re_enable_emif + +skip_rtc_only: + + tst r4, #WFI_FLAG_WAKE_M3 + beq wkup_m3_skip + + /* + * For the MPU WFI to be registered as an interrupt + * to WKUP_M3, MPU_CLKCTRL.MODULEMODE needs to be set + * to DISABLED + */ + ldr r1, am43xx_virt_mpu_clkctrl + ldr r2, [r1] + bic r2, r2, #AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE + str r2, [r1] + + /* + * Put MPU CLKDM to SW_SLEEP + */ + ldr r1, am43xx_virt_mpu_clkstctrl + mov r2, #AM43XX_CM_CLKSTCTRL_CLKTRCTRL_SW_SLEEP + str r2, [r1] + +wkup_m3_skip: + /* + * Execute a barrier instruction to ensure that all cache, + * TLB and branch predictor maintenance operations issued + * have completed. + */ + dsb + dmb + + /* + * Execute a WFI instruction and wait until the + * STANDBYWFI output is asserted to indicate that the + * CPU is in idle and low power state. CPU can specualatively + * prefetch the instructions so add NOPs after WFI. Sixteen + * NOPs as per Cortex-A9 pipeline. + */ + wfi + + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + + /* We come here in case of an abort due to a late interrupt */ + ldr r1, am43xx_virt_mpu_clkstctrl + mov r2, #AM43XX_CM_CLKSTCTRL_CLKTRCTRL_HW_AUTO + str r2, [r1] + + /* Set MPU_CLKCTRL.MODULEMODE back to ENABLE */ + ldr r1, am43xx_virt_mpu_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] + +re_enable_emif: + /* Re-enable EMIF */ + ldr r1, am43xx_virt_emif_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] +wait_emif_enable: + ldr r3, [r1] + cmp r2, r3 + bne wait_emif_enable + + tst r4, #WFI_FLAG_FLUSH_CACHE + beq cache_skip_restore + + /* + * Set SCTLR.C bit to allow data cache allocation + */ + mrc p15, 0, r0, c1, c0, 0 + orr r0, r0, #(1 << 2) @ Enable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + +cache_skip_restore: + /* Only necessary if PER is losing context */ + tst r4, #WFI_FLAG_SELF_REFRESH + beq emif_skip_exit_sr_abt + + adr r9, am43xx_emif_sram_table + ldr r1, [r9, #EMIF_PM_ABORT_SR_OFFSET] + blx r1 + +emif_skip_exit_sr_abt: + /* Let the suspend code know about the abort */ + mov r0, #1 + ldmfd sp!, {r4 - r11, pc} @ restore regs and return +ENDPROC(am43xx_do_wfi) + + .align +ENTRY(am43xx_resume_offset) + .word . - am43xx_do_wfi + +ENTRY(am43xx_resume_from_deep_sleep) + /* Set MPU CLKSTCTRL to HW AUTO so that CPUidle works properly */ + ldr r1, am43xx_virt_mpu_clkstctrl + mov r2, #AM43XX_CM_CLKSTCTRL_CLKTRCTRL_HW_AUTO + str r2, [r1] + + /* For AM43xx, use EMIF power down until context is restored */ + ldr r2, am43xx_phys_emif_poweroff + mov r1, #AM43XX_EMIF_POWEROFF_ENABLE + str r1, [r2, #0x0] + + /* Re-enable EMIF */ + ldr r1, am43xx_phys_emif_clkctrl + mov r2, #AM33XX_CM_CLKCTRL_MODULEMODE_ENABLE + str r2, [r1] +wait_emif_enable1: + ldr r3, [r1] + cmp r2, r3 + bne wait_emif_enable1 + + adr r9, am43xx_emif_sram_table + + ldr r1, [r9, #EMIF_PM_RESTORE_CONTEXT_OFFSET] + blx r1 + + ldr r1, [r9, #EMIF_PM_EXIT_SR_OFFSET] + blx r1 + + ldr r2, am43xx_phys_emif_poweroff + mov r1, #AM43XX_EMIF_POWEROFF_DISABLE + str r1, [r2, #0x0] + + ldr r1, [r9, #EMIF_PM_RUN_HW_LEVELING] + blx r1 + +#ifdef CONFIG_CACHE_L2X0 + ldr r2, l2_cache_base + ldr r0, [r2, #L2X0_CTRL] + and r0, #0x0f + cmp r0, #1 + beq skip_l2en @ Skip if already enabled + + adr r4, am43xx_pm_ro_sram_data + ldr r3, [r4, #AMX3_PM_RO_SRAM_DATA_PHYS_OFFSET] + ldr r0, [r3, #AMX3_PM_L2_PREFETCH_CTRL_VAL_OFFSET] + + ldr r12, l2_smc1 + dsb + smc #0 + dsb +set_aux_ctrl: + ldr r0, [r3, #AMX3_PM_L2_AUX_CTRL_VAL_OFFSET] + ldr r12, l2_smc2 + dsb + smc #0 + dsb + + /* L2 invalidate on resume */ + ldr r0, l2_val + ldr r2, l2_cache_base + str r0, [r2, #L2X0_INV_WAY] +wait2: + ldr r0, [r2, #L2X0_INV_WAY] + ldr r1, l2_val + ands r0, r0, r1 + bne wait2 +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x00 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + dsb + smc #0 + dsb +#endif +l2x_sync2: + ldr r2, l2_cache_base + mov r0, #0x0 + str r0, [r2, #L2X0_CACHE_SYNC] +sync2: + ldr r0, [r2, #L2X0_CACHE_SYNC] + ands r0, r0, #0x1 + bne sync2 + + mov r0, #0x1 + ldr r12, l2_smc3 + dsb + smc #0 + dsb +#endif +skip_l2en: + /* We are back. Branch to the common CPU resume routine */ + mov r0, #0 + ldr pc, resume_addr +ENDPROC(am43xx_resume_from_deep_sleep) + +/* + * Local variables + */ + .align +kernel_flush: + .word v7_flush_dcache_all +ddr_start: + .word PAGE_OFFSET + +am43xx_phys_emif_poweroff: + .word (AM43XX_CM_BASE + AM43XX_PRM_DEVICE_INST + \ + AM43XX_PRM_EMIF_CTRL_OFFSET) +am43xx_virt_mpu_clkstctrl: + .word (AM43XX_CM_MPU_CLKSTCTRL) +am43xx_virt_mpu_clkctrl: + .word (AM43XX_CM_MPU_MPU_CLKCTRL) +am43xx_virt_emif_clkctrl: + .word (AM43XX_CM_PER_EMIF_CLKCTRL) +am43xx_phys_emif_clkctrl: + .word (AM43XX_CM_BASE + AM43XX_CM_PER_INST + \ + AM43XX_CM_PER_EMIF_CLKCTRL_OFFSET) + +#ifdef CONFIG_CACHE_L2X0 +/* L2 cache related defines for AM437x */ +get_l2cache_base: + .word omap4_get_l2cache_base +l2_cache_base: + .word OMAP44XX_L2CACHE_BASE +l2_smc1: + .word OMAP4_MON_L2X0_PREFETCH_INDEX +l2_smc2: + .word OMAP4_MON_L2X0_AUXCTRL_INDEX +l2_smc3: + .word OMAP4_MON_L2X0_CTRL_INDEX +l2_val: + .word 0xffff +#endif + +.align 3 +/* DDR related defines */ +ENTRY(am43xx_emif_sram_table) + .space EMIF_PM_FUNCTIONS_SIZE + +ENTRY(am43xx_pm_sram) + .word am43xx_do_wfi + .word am43xx_do_wfi_sz + .word am43xx_resume_offset + .word am43xx_emif_sram_table + .word am43xx_pm_ro_sram_data + +resume_addr: + .word cpu_resume - PAGE_OFFSET + 0x80000000 +.align 3 + +ENTRY(am43xx_pm_ro_sram_data) + .space AMX3_PM_RO_SRAM_DATA_SIZE + +ENTRY(am43xx_do_wfi_sz) + .word . - am43xx_do_wfi diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S new file mode 100644 index 000000000..8b515f300 --- /dev/null +++ b/arch/arm/mach-omap2/sleep44xx.S @@ -0,0 +1,389 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP44xx sleep code. + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar <santosh.shilimkar@ti.com> + */ + +#include <linux/cfi_types.h> +#include <linux/linkage.h> +#include <asm/assembler.h> +#include <asm/smp_scu.h> +#include <asm/page.h> +#include <asm/hardware/cache-l2x0.h> + +#include "omap-secure.h" + +#include "common.h" +#include "omap44xx.h" +#include "omap4-sar-layout.h" + + .arch armv7-a + +#if defined(CONFIG_SMP) && defined(CONFIG_PM) + + .arch_extension sec +.macro DO_SMC + dsb + smc #0 + dsb +.endm + +#ifdef CONFIG_ARCH_OMAP4 + +/* + * ============================= + * == CPU suspend finisher == + * ============================= + * + * void omap4_finish_suspend(unsigned long cpu_state) + * + * This function code saves the CPU context and performs the CPU + * power down sequence. Calling WFI effectively changes the CPU + * power domains states to the desired target power state. + * + * @cpu_state : contains context save state (r0) + * 0 - No context lost + * 1 - CPUx L1 and logic lost: MPUSS CSWR + * 2 - CPUx L1 and logic lost + GIC lost: MPUSS OSWR + * 3 - CPUx L1 and logic lost + GIC + L2 lost: MPUSS OFF + * @return: This function never returns for CPU OFF and DORMANT power states. + * Post WFI, CPU transitions to DORMANT or OFF power state and on wake-up + * from this follows a full CPU reset path via ROM code to CPU restore code. + * The restore function pointer is stored at CPUx_WAKEUP_NS_PA_ADDR_OFFSET. + * It returns to the caller for CPU INACTIVE and ON power states or in case + * CPU failed to transition to targeted OFF/DORMANT state. + * + * omap4_finish_suspend() calls v7_flush_dcache_all() which doesn't save + * stack frame and it expects the caller to take care of it. Hence the entire + * stack frame is saved to avoid possible stack corruption. + */ +SYM_TYPED_FUNC_START(omap4_finish_suspend) + stmfd sp!, {r4-r12, lr} + cmp r0, #0x0 + beq do_WFI @ No lowpower state, jump to WFI + + /* + * Flush all data from the L1 data cache before disabling + * SCTLR.C bit. + */ + bl omap4_get_sar_ram_base + ldr r9, [r0, #OMAP_TYPE_OFFSET] + cmp r9, #0x1 @ Check for HS device + bne skip_secure_l1_clean + mov r0, #SCU_PM_NORMAL + mov r1, #0xFF @ clean seucre L1 + stmfd r13!, {r4-r12, r14} + ldr r12, =OMAP4_MON_SCU_PWR_INDEX + DO_SMC + ldmfd r13!, {r4-r12, r14} +skip_secure_l1_clean: + bl v7_flush_dcache_all + + /* + * Clear the SCTLR.C bit to prevent further data cache + * allocation. Clearing SCTLR.C would make all the data accesses + * strongly ordered and would not hit the cache. + */ + mrc p15, 0, r0, c1, c0, 0 + bic r0, r0, #(1 << 2) @ Disable the C bit + mcr p15, 0, r0, c1, c0, 0 + isb + + bl v7_invalidate_l1 + + /* + * Switch the CPU from Symmetric Multiprocessing (SMP) mode + * to AsymmetricMultiprocessing (AMP) mode by programming + * the SCU power status to DORMANT or OFF mode. + * This enables the CPU to be taken out of coherency by + * preventing the CPU from receiving cache, TLB, or BTB + * maintenance operations broadcast by other CPUs in the cluster. + */ + bl omap4_get_sar_ram_base + mov r8, r0 + ldr r9, [r8, #OMAP_TYPE_OFFSET] + cmp r9, #0x1 @ Check for HS device + bne scu_gp_set + mrc p15, 0, r0, c0, c0, 5 @ Read MPIDR + ands r0, r0, #0x0f + ldreq r0, [r8, #SCU_OFFSET0] + ldrne r0, [r8, #SCU_OFFSET1] + mov r1, #0x00 + stmfd r13!, {r4-r12, r14} + ldr r12, =OMAP4_MON_SCU_PWR_INDEX + DO_SMC + ldmfd r13!, {r4-r12, r14} + b skip_scu_gp_set +scu_gp_set: + mrc p15, 0, r0, c0, c0, 5 @ Read MPIDR + ands r0, r0, #0x0f + ldreq r1, [r8, #SCU_OFFSET0] + ldrne r1, [r8, #SCU_OFFSET1] + bl omap4_get_scu_base + bl scu_power_mode +skip_scu_gp_set: + mrc p15, 0, r0, c1, c1, 2 @ Read NSACR data + tst r0, #(1 << 18) + mrcne p15, 0, r0, c1, c0, 1 + bicne r0, r0, #(1 << 6) @ Disable SMP bit + mcrne p15, 0, r0, c1, c0, 1 + isb + dsb +#ifdef CONFIG_CACHE_L2X0 + /* + * Clean and invalidate the L2 cache. + * Common cache-l2x0.c functions can't be used here since it + * uses spinlocks. We are out of coherency here with data cache + * disabled. The spinlock implementation uses exclusive load/store + * instruction which can fail without data cache being enabled. + * OMAP4 hardware doesn't support exclusive monitor which can + * overcome exclusive access issue. Because of this, CPU can + * lead to deadlock. + */ + bl omap4_get_sar_ram_base + mov r8, r0 + mrc p15, 0, r5, c0, c0, 5 @ Read MPIDR + ands r5, r5, #0x0f + ldreq r0, [r8, #L2X0_SAVE_OFFSET0] @ Retrieve L2 state from SAR + ldrne r0, [r8, #L2X0_SAVE_OFFSET1] @ memory. + cmp r0, #3 + bne do_WFI +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x03 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + DO_SMC +#endif + bl omap4_get_l2cache_base + mov r2, r0 + ldr r0, =0xffff + str r0, [r2, #L2X0_CLEAN_INV_WAY] +wait: + ldr r0, [r2, #L2X0_CLEAN_INV_WAY] + ldr r1, =0xffff + ands r0, r0, r1 + bne wait +#ifdef CONFIG_PL310_ERRATA_727915 + mov r0, #0x00 + mov r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX + DO_SMC +#endif +l2x_sync: + bl omap4_get_l2cache_base + mov r2, r0 + mov r0, #0x0 + str r0, [r2, #L2X0_CACHE_SYNC] +sync: + ldr r0, [r2, #L2X0_CACHE_SYNC] + ands r0, r0, #0x1 + bne sync +#endif + +do_WFI: + bl omap_do_wfi + + /* + * CPU is here when it failed to enter OFF/DORMANT or + * no low power state was attempted. + */ + mrc p15, 0, r0, c1, c0, 0 + tst r0, #(1 << 2) @ Check C bit enabled? + orreq r0, r0, #(1 << 2) @ Enable the C bit + mcreq p15, 0, r0, c1, c0, 0 + isb + + /* + * Ensure the CPU power state is set to NORMAL in + * SCU power state so that CPU is back in coherency. + * In non-coherent mode CPU can lock-up and lead to + * system deadlock. + */ + mrc p15, 0, r0, c1, c0, 1 + tst r0, #(1 << 6) @ Check SMP bit enabled? + orreq r0, r0, #(1 << 6) + mcreq p15, 0, r0, c1, c0, 1 + isb + bl omap4_get_sar_ram_base + mov r8, r0 + ldr r9, [r8, #OMAP_TYPE_OFFSET] + cmp r9, #0x1 @ Check for HS device + bne scu_gp_clear + mov r0, #SCU_PM_NORMAL + mov r1, #0x00 + stmfd r13!, {r4-r12, r14} + ldr r12, =OMAP4_MON_SCU_PWR_INDEX + DO_SMC + ldmfd r13!, {r4-r12, r14} + b skip_scu_gp_clear +scu_gp_clear: + bl omap4_get_scu_base + mov r1, #SCU_PM_NORMAL + bl scu_power_mode +skip_scu_gp_clear: + isb + dsb + ldmfd sp!, {r4-r12, pc} +SYM_FUNC_END(omap4_finish_suspend) + +/* + * ============================ + * == CPU resume entry point == + * ============================ + * + * void omap4_cpu_resume(void) + * + * ROM code jumps to this function while waking up from CPU + * OFF or DORMANT state. Physical address of the function is + * stored in the SAR RAM while entering to OFF or DORMANT mode. + * The restore function pointer is stored at CPUx_WAKEUP_NS_PA_ADDR_OFFSET. + */ +ENTRY(omap4_cpu_resume) + /* + * Configure ACTRL and enable NS SMP bit access on CPU1 on HS device. + * OMAP44XX EMU/HS devices - CPU0 SMP bit access is enabled in PPA + * init and for CPU1, a secure PPA API provided. CPU0 must be ON + * while executing NS_SMP API on CPU1 and PPA version must be 1.4.0+. + * OMAP443X GP devices- SMP bit isn't accessible. + * OMAP446X GP devices - SMP bit access is enabled on both CPUs. + */ + ldr r8, =OMAP44XX_SAR_RAM_BASE + ldr r9, [r8, #OMAP_TYPE_OFFSET] + cmp r9, #0x1 @ Skip if GP device + bne skip_ns_smp_enable + mrc p15, 0, r0, c0, c0, 5 + ands r0, r0, #0x0f + beq skip_ns_smp_enable +ppa_actrl_retry: + mov r0, #OMAP4_PPA_CPU_ACTRL_SMP_INDEX + adr r1, ppa_zero_params_offset + ldr r3, [r1] + add r3, r3, r1 @ Pointer to ppa_zero_params + mov r1, #0x0 @ Process ID + mov r2, #0x4 @ Flag + mov r6, #0xff + mov r12, #0x00 @ Secure Service ID + DO_SMC + cmp r0, #0x0 @ API returns 0 on success. + beq enable_smp_bit + b ppa_actrl_retry +enable_smp_bit: + mrc p15, 0, r0, c1, c0, 1 + tst r0, #(1 << 6) @ Check SMP bit enabled? + orreq r0, r0, #(1 << 6) + mcreq p15, 0, r0, c1, c0, 1 + isb +skip_ns_smp_enable: +#ifdef CONFIG_CACHE_L2X0 + /* + * Restore the L2 AUXCTRL and enable the L2 cache. + * OMAP4_MON_L2X0_AUXCTRL_INDEX = Program the L2X0 AUXCTRL + * OMAP4_MON_L2X0_CTRL_INDEX = Enable the L2 using L2X0 CTRL + * register r0 contains value to be programmed. + * L2 cache is already invalidate by ROM code as part + * of MPUSS OFF wakeup path. + */ + ldr r2, =OMAP44XX_L2CACHE_BASE + ldr r0, [r2, #L2X0_CTRL] + and r0, #0x0f + cmp r0, #1 + beq skip_l2en @ Skip if already enabled + ldr r3, =OMAP44XX_SAR_RAM_BASE + ldr r1, [r3, #OMAP_TYPE_OFFSET] + cmp r1, #0x1 @ Check for HS device + bne set_gp_por + ldr r0, =OMAP4_PPA_L2_POR_INDEX + ldr r1, =OMAP44XX_SAR_RAM_BASE + ldr r4, [r1, #L2X0_PREFETCH_CTRL_OFFSET] + adr r1, ppa_por_params_offset + ldr r3, [r1] + add r3, r3, r1 @ Pointer to ppa_por_params + str r4, [r3, #0x04] + mov r1, #0x0 @ Process ID + mov r2, #0x4 @ Flag + mov r6, #0xff + mov r12, #0x00 @ Secure Service ID + DO_SMC + b set_aux_ctrl +set_gp_por: + ldr r1, =OMAP44XX_SAR_RAM_BASE + ldr r0, [r1, #L2X0_PREFETCH_CTRL_OFFSET] + ldr r12, =OMAP4_MON_L2X0_PREFETCH_INDEX @ Setup L2 PREFETCH + DO_SMC +set_aux_ctrl: + ldr r1, =OMAP44XX_SAR_RAM_BASE + ldr r0, [r1, #L2X0_AUXCTRL_OFFSET] + ldr r12, =OMAP4_MON_L2X0_AUXCTRL_INDEX @ Setup L2 AUXCTRL + DO_SMC + mov r0, #0x1 + ldr r12, =OMAP4_MON_L2X0_CTRL_INDEX @ Enable L2 cache + DO_SMC +skip_l2en: +#endif + + b cpu_resume @ Jump to generic resume +ppa_por_params_offset: + .long ppa_por_params - . +ENDPROC(omap4_cpu_resume) +#endif /* CONFIG_ARCH_OMAP4 */ + +#endif /* defined(CONFIG_SMP) && defined(CONFIG_PM) */ + +ENTRY(omap_do_wfi) + stmfd sp!, {lr} +#ifdef CONFIG_OMAP_INTERCONNECT_BARRIER + /* Drain interconnect write buffers. */ + bl omap_interconnect_sync +#endif + + /* + * Execute an ISB instruction to ensure that all of the + * CP15 register changes have been committed. + */ + isb + + /* + * Execute a barrier instruction to ensure that all cache, + * TLB and branch predictor maintenance operations issued + * by any CPU in the cluster have completed. + */ + dsb + dmb + + /* + * Execute a WFI instruction and wait until the + * STANDBYWFI output is asserted to indicate that the + * CPU is in idle and low power state. CPU can specualatively + * prefetch the instructions so add NOPs after WFI. Sixteen + * NOPs as per Cortex-A9 pipeline. + */ + wfi @ Wait For Interrupt + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + + ldmfd sp!, {pc} +ppa_zero_params_offset: + .long ppa_zero_params - . +ENDPROC(omap_do_wfi) + + .data + .align 2 +ppa_zero_params: + .word 0 + +ppa_por_params: + .word 1, 0 diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c new file mode 100644 index 000000000..7c18420c9 --- /dev/null +++ b/arch/arm/mach-omap2/smartreflex-class3.c @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Smart reflex Class 3 specific implementations + * + * Author: Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Thara Gopinath <thara@ti.com> + */ + +#include <linux/power/smartreflex.h> +#include "soc.h" +#include "voltage.h" + +static int sr_class3_enable(struct omap_sr *sr) +{ + unsigned long volt = voltdm_get_voltage(sr->voltdm); + + if (!volt) { + pr_warn("%s: Curr voltage unknown. Cannot enable %s\n", + __func__, sr->name); + return -ENODATA; + } + + omap_vp_enable(sr->voltdm); + return sr_enable(sr, volt); +} + +static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset) +{ + sr_disable_errgen(sr); + omap_vp_disable(sr->voltdm); + sr_disable(sr); + if (is_volt_reset) + voltdm_reset(sr->voltdm); + + return 0; +} + +static int sr_class3_configure(struct omap_sr *sr) +{ + return sr_configure_errgen(sr); +} + +/* SR class3 structure */ +static struct omap_sr_class_data class3_data = { + .enable = sr_class3_enable, + .disable = sr_class3_disable, + .configure = sr_class3_configure, + .class_type = SR_CLASS3, +}; + +/* Smartreflex Class3 init API to be called from board file */ +static int __init sr_class3_init(void) +{ + pr_info("SmartReflex Class3 initialized\n"); + return sr_register_class(&class3_data); +} +omap_late_initcall(sr_class3_init); diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h new file mode 100644 index 000000000..9e3dbb743 --- /dev/null +++ b/arch/arm/mach-omap2/soc.h @@ -0,0 +1,504 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * OMAP cpu type detection + * + * Copyright (C) 2004, 2008 Nokia Corporation + * + * Copyright (C) 2009-11 Texas Instruments. + * + * Written by Tony Lindgren <tony.lindgren@nokia.com> + * + * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com> + * Added DRA7xxx specific defines - Sricharan R<r.sricharan@ti.com> + */ + +#include "omap24xx.h" +#include "omap34xx.h" +#include "omap44xx.h" +#include "ti81xx.h" +#include "am33xx.h" +#include "omap54xx.h" + +#ifndef __ASSEMBLY__ + +#include <linux/bitops.h> +#include <linux/of.h> + +/* + * OMAP2+ is always defined as ARCH_MULTIPLATFORM in Kconfig + */ +#undef MULTI_OMAP2 +#define MULTI_OMAP2 + +/* + * Omap device type i.e. EMU/HS/TST/GP/BAD + */ +#define OMAP2_DEVICE_TYPE_TEST 0 +#define OMAP2_DEVICE_TYPE_EMU 1 +#define OMAP2_DEVICE_TYPE_SEC 2 +#define OMAP2_DEVICE_TYPE_GP 3 +#define OMAP2_DEVICE_TYPE_BAD 4 + +int omap_type(void); + +/* + * omap_rev bits: + * SoC id bits (0730, 1510, 1710, 2422...) [31:16] + * SoC revision (See _REV_ defined in cpu.h) [15:08] + * SoC class bits (15xx, 16xx, 24xx, 34xx...) [07:00] + */ +unsigned int omap_rev(void); + +static inline int soc_is_omap(void) +{ + return omap_rev() != 0; +} + +/* + * Get the SoC revision for OMAP devices + */ +#define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff) + +/* + * Macros to group OMAP into cpu classes. + * These can be used in most places. + * soc_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430 + * soc_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423 + * soc_is_omap243x(): True for OMAP2430 + * soc_is_omap343x(): True for OMAP3430 + * soc_is_omap443x(): True for OMAP4430 + * soc_is_omap446x(): True for OMAP4460 + * soc_is_omap447x(): True for OMAP4470 + * soc_is_omap543x(): True for OMAP5430, OMAP5432 + */ +#define GET_OMAP_CLASS (omap_rev() & 0xff) + +#define IS_OMAP_CLASS(class, id) \ +static inline int is_omap ##class (void) \ +{ \ + return (GET_OMAP_CLASS == (id)) ? 1 : 0; \ +} + +#define GET_AM_CLASS ((omap_rev() >> 24) & 0xff) + +#define IS_AM_CLASS(class, id) \ +static inline int is_am ##class (void) \ +{ \ + return (GET_AM_CLASS == (id)) ? 1 : 0; \ +} + +#define GET_TI_CLASS ((omap_rev() >> 24) & 0xff) + +#define IS_TI_CLASS(class, id) \ +static inline int is_ti ##class (void) \ +{ \ + return (GET_TI_CLASS == (id)) ? 1 : 0; \ +} + +#define GET_DRA_CLASS ((omap_rev() >> 24) & 0xff) + +#define IS_DRA_CLASS(class, id) \ +static inline int is_dra ##class (void) \ +{ \ + return (GET_DRA_CLASS == (id)) ? 1 : 0; \ +} + +#define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff) + +#define IS_OMAP_SUBCLASS(subclass, id) \ +static inline int is_omap ##subclass (void) \ +{ \ + return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ +} + +#define IS_TI_SUBCLASS(subclass, id) \ +static inline int is_ti ##subclass (void) \ +{ \ + return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ +} + +#define IS_AM_SUBCLASS(subclass, id) \ +static inline int is_am ##subclass (void) \ +{ \ + return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ +} + +#define IS_DRA_SUBCLASS(subclass, id) \ +static inline int is_dra ##subclass (void) \ +{ \ + return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ +} + +#define GET_DRA_PACKAGE (omap_rev() & 0xff) + +#define IS_DRA_SUBCLASS_PACKAGE(subclass, package, id) \ +static inline int is_dra ##subclass ##_ ##package (void) \ +{ \ + return (is_dra ##subclass () && GET_DRA_PACKAGE == id) ? 1 : 0; \ +} + +IS_OMAP_CLASS(24xx, 0x24) +IS_OMAP_CLASS(34xx, 0x34) +IS_OMAP_CLASS(44xx, 0x44) +IS_AM_CLASS(35xx, 0x35) +IS_OMAP_CLASS(54xx, 0x54) +IS_AM_CLASS(33xx, 0x33) +IS_AM_CLASS(43xx, 0x43) + +IS_TI_CLASS(81xx, 0x81) +IS_DRA_CLASS(7xx, 0x7) + +IS_OMAP_SUBCLASS(242x, 0x242) +IS_OMAP_SUBCLASS(243x, 0x243) +IS_OMAP_SUBCLASS(343x, 0x343) +IS_OMAP_SUBCLASS(363x, 0x363) +IS_OMAP_SUBCLASS(443x, 0x443) +IS_OMAP_SUBCLASS(446x, 0x446) +IS_OMAP_SUBCLASS(447x, 0x447) +IS_OMAP_SUBCLASS(543x, 0x543) + +IS_TI_SUBCLASS(816x, 0x816) +IS_TI_SUBCLASS(814x, 0x814) +IS_AM_SUBCLASS(335x, 0x335) +IS_AM_SUBCLASS(437x, 0x437) +IS_DRA_SUBCLASS(76x, 0x76) +IS_DRA_SUBCLASS_PACKAGE(76x, abz, 2) +IS_DRA_SUBCLASS_PACKAGE(76x, acd, 3) +IS_DRA_SUBCLASS(75x, 0x75) +IS_DRA_SUBCLASS(72x, 0x72) + +#define soc_is_ti81xx() 0 +#define soc_is_ti816x() 0 +#define soc_is_ti814x() 0 +#define soc_is_am35xx() 0 +#define soc_is_am33xx() 0 +#define soc_is_am335x() 0 +#define soc_is_am43xx() 0 +#define soc_is_am437x() 0 +#define soc_is_omap44xx() 0 +#define soc_is_omap443x() 0 +#define soc_is_omap446x() 0 +#define soc_is_omap447x() 0 +#define soc_is_omap54xx() 0 +#define soc_is_omap543x() 0 +#define soc_is_dra7xx() 0 +#define soc_is_dra76x() 0 +#define soc_is_dra74x() 0 +#define soc_is_dra72x() 0 + +#if defined(CONFIG_ARCH_OMAP2) +# define soc_is_omap24xx() is_omap24xx() +#else +# define soc_is_omap24xx() 0 +#endif +#if defined(CONFIG_SOC_OMAP2420) +# define soc_is_omap242x() is_omap242x() +#else +# define soc_is_omap242x() 0 +#endif +#if defined(CONFIG_SOC_OMAP2430) +# define soc_is_omap243x() is_omap243x() +#else +# define soc_is_omap243x() 0 +#endif +#if defined(CONFIG_ARCH_OMAP3) +# define soc_is_omap34xx() is_omap34xx() +# define soc_is_omap343x() is_omap343x() +#else +# define soc_is_omap34xx() 0 +# define soc_is_omap343x() 0 +#endif + +/* + * Macros to detect individual cpu types. + * These are only rarely needed. + * soc_is_omap2420(): True for OMAP2420 + * soc_is_omap2422(): True for OMAP2422 + * soc_is_omap2423(): True for OMAP2423 + * soc_is_omap2430(): True for OMAP2430 + * soc_is_omap3430(): True for OMAP3430 + */ +#define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff) + +#define IS_OMAP_TYPE(type, id) \ +static inline int is_omap ##type (void) \ +{ \ + return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ +} + +IS_OMAP_TYPE(2420, 0x2420) +IS_OMAP_TYPE(2422, 0x2422) +IS_OMAP_TYPE(2423, 0x2423) +IS_OMAP_TYPE(2430, 0x2430) +IS_OMAP_TYPE(3430, 0x3430) + +#define soc_is_omap2420() 0 +#define soc_is_omap2422() 0 +#define soc_is_omap2423() 0 +#define soc_is_omap2430() 0 +#define soc_is_omap3430() 0 +#define soc_is_omap3630() 0 +#define soc_is_omap5430() 0 + +/* These are needed for the common code */ +#define soc_is_omap7xx() 0 +#define soc_is_omap15xx() 0 +#define soc_is_omap16xx() 0 +#define soc_is_omap1510() 0 +#define soc_is_omap1610() 0 +#define soc_is_omap1611() 0 +#define soc_is_omap1621() 0 +#define soc_is_omap1710() 0 +#define cpu_class_is_omap1() 0 +#define cpu_class_is_omap2() 1 + +#if defined(CONFIG_ARCH_OMAP2) +# undef soc_is_omap2420 +# undef soc_is_omap2422 +# undef soc_is_omap2423 +# undef soc_is_omap2430 +# define soc_is_omap2420() is_omap2420() +# define soc_is_omap2422() is_omap2422() +# define soc_is_omap2423() is_omap2423() +# define soc_is_omap2430() is_omap2430() +#endif + +#if defined(CONFIG_ARCH_OMAP3) +# undef soc_is_omap3430 +# undef soc_is_ti81xx +# undef soc_is_ti816x +# undef soc_is_ti814x +# undef soc_is_am35xx +# define soc_is_omap3430() is_omap3430() +# undef soc_is_omap3630 +# define soc_is_omap3630() is_omap363x() +# define soc_is_ti81xx() is_ti81xx() +# define soc_is_ti816x() is_ti816x() +# define soc_is_ti814x() is_ti814x() +# define soc_is_am35xx() is_am35xx() +#endif + +# if defined(CONFIG_SOC_AM33XX) +# undef soc_is_am33xx +# undef soc_is_am335x +# define soc_is_am33xx() is_am33xx() +# define soc_is_am335x() is_am335x() +#endif + +#ifdef CONFIG_SOC_AM43XX +# undef soc_is_am43xx +# undef soc_is_am437x +# define soc_is_am43xx() is_am43xx() +# define soc_is_am437x() is_am437x() +#endif + +# if defined(CONFIG_ARCH_OMAP4) +# undef soc_is_omap44xx +# undef soc_is_omap443x +# undef soc_is_omap446x +# undef soc_is_omap447x +# define soc_is_omap44xx() is_omap44xx() +# define soc_is_omap443x() is_omap443x() +# define soc_is_omap446x() is_omap446x() +# define soc_is_omap447x() is_omap447x() +# endif + +# if defined(CONFIG_SOC_OMAP5) +# undef soc_is_omap54xx +# undef soc_is_omap543x +# define soc_is_omap54xx() is_omap54xx() +# define soc_is_omap543x() is_omap543x() +#endif + +#if defined(CONFIG_SOC_DRA7XX) +#undef soc_is_dra7xx +#undef soc_is_dra76x +#undef soc_is_dra76x_abz +#undef soc_is_dra76x_acd +#undef soc_is_dra74x +#undef soc_is_dra72x +#define soc_is_dra7xx() is_dra7xx() +#define soc_is_dra76x() is_dra76x() +#define soc_is_dra76x_abz() is_dra76x_abz() +#define soc_is_dra76x_acd() is_dra76x_acd() +#define soc_is_dra74x() is_dra75x() +#define soc_is_dra72x() is_dra72x() +#endif + +/* Various silicon revisions for omap2 */ +#define OMAP242X_CLASS 0x24200024 +#define OMAP2420_REV_ES1_0 OMAP242X_CLASS +#define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8)) + +#define OMAP243X_CLASS 0x24300024 +#define OMAP2430_REV_ES1_0 OMAP243X_CLASS + +#define OMAP343X_CLASS 0x34300034 +#define OMAP3430_REV_ES1_0 OMAP343X_CLASS +#define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8)) +#define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8)) +#define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8)) +#define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8)) +#define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8)) + +#define OMAP363X_CLASS 0x36300034 +#define OMAP3630_REV_ES1_0 OMAP363X_CLASS +#define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8)) +#define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8)) + +#define TI816X_CLASS 0x81600081 +#define TI8168_REV_ES1_0 TI816X_CLASS +#define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8)) +#define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8)) +#define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8)) + +#define TI814X_CLASS 0x81400081 +#define TI8148_REV_ES1_0 TI814X_CLASS +#define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8)) +#define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8)) + +#define AM35XX_CLASS 0x35170034 +#define AM35XX_REV_ES1_0 AM35XX_CLASS +#define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8)) + +#define AM335X_CLASS 0x33500033 +#define AM335X_REV_ES1_0 AM335X_CLASS +#define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8)) +#define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8)) + +#define AM437X_CLASS 0x43700000 +#define AM437X_REV_ES1_0 (AM437X_CLASS | (0x10 << 8)) +#define AM437X_REV_ES1_1 (AM437X_CLASS | (0x11 << 8)) +#define AM437X_REV_ES1_2 (AM437X_CLASS | (0x12 << 8)) + +#define OMAP443X_CLASS 0x44300044 +#define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8)) +#define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8)) +#define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8)) +#define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8)) +#define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8)) + +#define OMAP446X_CLASS 0x44600044 +#define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8)) +#define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8)) + +#define OMAP447X_CLASS 0x44700044 +#define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8)) + +#define OMAP54XX_CLASS 0x54000054 +#define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8)) +#define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8)) + +#define DRA7XX_CLASS 0x07000000 +#define DRA762_REV_ES1_0 (DRA7XX_CLASS | (0x62 << 16) | (0x10 << 8)) +#define DRA762_ABZ_REV_ES1_0 (DRA762_REV_ES1_0 | (2 << 0)) +#define DRA762_ACD_REV_ES1_0 (DRA762_REV_ES1_0 | (3 << 0)) +#define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8)) +#define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8)) +#define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8)) +#define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8)) +#define DRA722_REV_ES2_0 (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8)) +#define DRA722_REV_ES2_1 (DRA7XX_CLASS | (0x22 << 16) | (0x21 << 8)) + +void omap2xxx_check_revision(void); +void omap3xxx_check_revision(void); +void omap4xxx_check_revision(void); +void omap5xxx_check_revision(void); +void dra7xxx_check_revision(void); +void omap3xxx_check_features(void); +void ti81xx_check_features(void); +void am33xx_check_features(void); +void omap4xxx_check_features(void); + +/* + * Runtime detection of OMAP3 features + * + * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip + * family have OS-level control over the I/O chain clock. This is + * to avoid a window during which wakeups could potentially be lost + * during powerdomain transitions. If this bit is set, it + * indicates that the chip does support OS-level control of this + * feature. + */ +extern u32 omap_features; + +#define OMAP3_HAS_L2CACHE BIT(0) +#define OMAP3_HAS_IVA BIT(1) +#define OMAP3_HAS_SGX BIT(2) +#define OMAP3_HAS_NEON BIT(3) +#define OMAP3_HAS_ISP BIT(4) +#define OMAP3_HAS_192MHZ_CLK BIT(5) +#define OMAP3_HAS_IO_WAKEUP BIT(6) +#define OMAP3_HAS_SDRC BIT(7) +#define OMAP3_HAS_IO_CHAIN_CTRL BIT(8) +#define OMAP4_HAS_PERF_SILICON BIT(9) + + +#define OMAP3_HAS_FEATURE(feat,flag) \ +static inline unsigned int omap3_has_ ##feat(void) \ +{ \ + return omap_features & OMAP3_HAS_ ##flag; \ +} \ + +OMAP3_HAS_FEATURE(l2cache, L2CACHE) +OMAP3_HAS_FEATURE(sgx, SGX) +OMAP3_HAS_FEATURE(iva, IVA) +OMAP3_HAS_FEATURE(neon, NEON) +OMAP3_HAS_FEATURE(isp, ISP) +OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK) +OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP) +OMAP3_HAS_FEATURE(sdrc, SDRC) +OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL) + +/* + * Runtime detection of OMAP4 features + */ +#define OMAP4_HAS_FEATURE(feat, flag) \ +static inline unsigned int omap4_has_ ##feat(void) \ +{ \ + return omap_features & OMAP4_HAS_ ##flag; \ +} \ + +OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON) + +/* + * We need to make sure omap initcalls don't run when + * multiplatform kernels are booted on other SoCs. + */ +#define omap_initcall(level, fn) \ +static int __init __used __##fn(void) \ +{ \ + if (!soc_is_omap()) \ + return 0; \ + return fn(); \ +} \ +level(__##fn); + +#define omap_early_initcall(fn) omap_initcall(early_initcall, fn) +#define omap_core_initcall(fn) omap_initcall(core_initcall, fn) +#define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn) +#define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn) +#define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn) +#define omap_device_initcall(fn) omap_initcall(device_initcall, fn) +#define omap_late_initcall(fn) omap_initcall(late_initcall, fn) +#define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn) + +/* Legacy defines, these can be removed when users are removed */ +#define cpu_is_omap2420() soc_is_omap2420() +#define cpu_is_omap2422() soc_is_omap2422() +#define cpu_is_omap242x() soc_is_omap242x() +#define cpu_is_omap2430() soc_is_omap2430() +#define cpu_is_omap243x() soc_is_omap243x() +#define cpu_is_omap24xx() soc_is_omap24xx() +#define cpu_is_omap3430() soc_is_omap3430() +#define cpu_is_omap343x() soc_is_omap343x() +#define cpu_is_omap34xx() soc_is_omap34xx() +#define cpu_is_omap3630() soc_is_omap3630() +#define cpu_is_omap443x() soc_is_omap443x() +#define cpu_is_omap446x() soc_is_omap446x() +#define cpu_is_omap44xx() soc_is_omap44xx() +#define cpu_is_ti814x() soc_is_ti814x() +#define cpu_is_ti816x() soc_is_ti816x() +#define cpu_is_ti81xx() soc_is_ti81xx() + +#endif /* __ASSEMBLY__ */ diff --git a/arch/arm/mach-omap2/sr_device.c b/arch/arm/mach-omap2/sr_device.c new file mode 100644 index 000000000..758d90e03 --- /dev/null +++ b/arch/arm/mach-omap2/sr_device.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3/OMAP4 smartreflex device file + * + * Author: Thara Gopinath <thara@ti.com> + * + * Based originally on code from smartreflex.c + * Copyright (C) 2010 Texas Instruments, Inc. + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008 Nokia Corporation + * Kalle Jokiniemi + * + * Copyright (C) 2007 Texas Instruments, Inc. + * Lesly A M <x0080970@ti.com> + */ +#include <linux/power/smartreflex.h> + +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/io.h> + +#include "soc.h" +#include "omap_device.h" +#include "voltage.h" +#include "control.h" +#include "pm.h" + +/* Read EFUSE values from control registers for OMAP3430 */ +static void __init sr_set_nvalues(struct omap_volt_data *volt_data, + struct omap_sr_data *sr_data) +{ + struct omap_sr_nvalue_table *nvalue_table; + int i, j, count = 0; + + sr_data->nvalue_count = 0; + sr_data->nvalue_table = NULL; + + while (volt_data[count].volt_nominal) + count++; + + nvalue_table = kzalloc_objs(*nvalue_table, count); + if (!nvalue_table) + return; + + for (i = 0, j = 0; i < count; i++) { + u32 v; + + /* + * In OMAP4 the efuse registers are 24 bit aligned. + * A readl_relaxed will fail for non-32 bit aligned address + * and hence the 8-bit read and shift. + */ + if (cpu_is_omap44xx()) { + u16 offset = volt_data[i].sr_efuse_offs; + + v = omap_ctrl_readb(offset) | + omap_ctrl_readb(offset + 1) << 8 | + omap_ctrl_readb(offset + 2) << 16; + } else { + v = omap_ctrl_readl(volt_data[i].sr_efuse_offs); + } + + /* + * Many OMAP SoCs don't have the eFuse values set. + * For example, pretty much all OMAP3xxx before + * ES3.something. + * + * XXX There needs to be some way for board files or + * userspace to add these in. + */ + if (v == 0) + continue; + + nvalue_table[j].nvalue = v; + nvalue_table[j].efuse_offs = volt_data[i].sr_efuse_offs; + nvalue_table[j].errminlimit = volt_data[i].sr_errminlimit; + nvalue_table[j].volt_nominal = volt_data[i].volt_nominal; + + j++; + } + + sr_data->nvalue_table = nvalue_table; + sr_data->nvalue_count = j; +} + +extern struct omap_sr_data omap_sr_pdata[]; + +static int __init sr_init_by_name(const char *name, const char *voltdm) +{ + struct omap_sr_data *sr_data = NULL; + struct omap_volt_data *volt_data; + static int i; + + if (!strncmp(name, "smartreflex_mpu_iva", 20) || + !strncmp(name, "smartreflex_mpu", 16)) + sr_data = &omap_sr_pdata[OMAP_SR_MPU]; + else if (!strncmp(name, "smartreflex_core", 17)) + sr_data = &omap_sr_pdata[OMAP_SR_CORE]; + else if (!strncmp(name, "smartreflex_iva", 16)) + sr_data = &omap_sr_pdata[OMAP_SR_IVA]; + + if (!sr_data) { + pr_err("%s: Unknown instance %s\n", __func__, name); + return -EINVAL; + } + + sr_data->name = name; + if (cpu_is_omap343x()) + sr_data->ip_type = 1; + else + sr_data->ip_type = 2; + sr_data->senn_mod = 0x1; + sr_data->senp_mod = 0x1; + + if (cpu_is_omap34xx() || cpu_is_omap44xx()) { + sr_data->err_weight = OMAP3430_SR_ERRWEIGHT; + sr_data->err_maxlimit = OMAP3430_SR_ERRMAXLIMIT; + sr_data->accum_data = OMAP3430_SR_ACCUMDATA; + if (!(strcmp(sr_data->name, "smartreflex_mpu"))) { + sr_data->senn_avgweight = OMAP3430_SR1_SENNAVGWEIGHT; + sr_data->senp_avgweight = OMAP3430_SR1_SENPAVGWEIGHT; + } else { + sr_data->senn_avgweight = OMAP3430_SR2_SENNAVGWEIGHT; + sr_data->senp_avgweight = OMAP3430_SR2_SENPAVGWEIGHT; + } + } + + sr_data->voltdm = voltdm_lookup(voltdm); + if (!sr_data->voltdm) { + pr_err("%s: Unable to get voltage domain pointer for VDD %s\n", + __func__, voltdm); + goto exit; + } + + omap_voltage_get_volttable(sr_data->voltdm, &volt_data); + if (!volt_data) { + pr_err("%s: No Voltage table registered for VDD%d\n", + __func__, i + 1); + goto exit; + } + + sr_set_nvalues(volt_data, sr_data); + +exit: + i++; + + return 0; +} + +#ifdef CONFIG_OMAP_HWMOD +static int __init sr_dev_init(struct omap_hwmod *oh, void *user) +{ + struct omap_smartreflex_dev_attr *sr_dev_attr; + + sr_dev_attr = (struct omap_smartreflex_dev_attr *)oh->dev_attr; + if (!sr_dev_attr || !sr_dev_attr->sensor_voltdm_name) { + pr_err("%s: No voltage domain specified for %s. Cannot initialize\n", + __func__, oh->name); + return 0; + } + + return sr_init_by_name(oh->name, sr_dev_attr->sensor_voltdm_name); +} +#else +static int __init sr_dev_init(struct omap_hwmod *oh, void *user) +{ + return -EINVAL; +} +#endif + +static const char * const omap4_sr_instances[] = { + "mpu", + "iva", + "core", +}; + +static const char * const dra7_sr_instances[] = { + "mpu", + "core", +}; + +int __init omap_devinit_smartreflex(void) +{ + const char * const *sr_inst = NULL; + int i, nr_sr = 0; + + if (soc_is_omap44xx()) { + sr_inst = omap4_sr_instances; + nr_sr = ARRAY_SIZE(omap4_sr_instances); + + } else if (soc_is_dra7xx()) { + sr_inst = dra7_sr_instances; + nr_sr = ARRAY_SIZE(dra7_sr_instances); + } + + if (nr_sr) { + const char *name, *voltdm; + + for (i = 0; i < nr_sr; i++) { + name = kasprintf(GFP_KERNEL, "smartreflex_%s", sr_inst[i]); + voltdm = sr_inst[i]; + sr_init_by_name(name, voltdm); + } + + return 0; + } + + return omap_hwmod_for_each_by_class("smartreflex", sr_dev_init, NULL); +} diff --git a/arch/arm/mach-omap2/sram.c b/arch/arm/mach-omap2/sram.c new file mode 100644 index 000000000..898b011ae --- /dev/null +++ b/arch/arm/mach-omap2/sram.c @@ -0,0 +1,326 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * + * OMAP SRAM detection and management + * + * Copyright (C) 2005 Nokia Corporation + * Written by Tony Lindgren <tony@atomide.com> + * + * Copyright (C) 2009-2012 Texas Instruments + * Added OMAP4/5 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/set_memory.h> + +#include <asm/fncpy.h> +#include <asm/tlb.h> +#include <asm/cacheflush.h> + +#include <asm/mach/map.h> + +#include "soc.h" +#include "iomap.h" +#include "prm2xxx_3xxx.h" +#include "sdrc.h" +#include "sram.h" + +#define OMAP2_SRAM_PUB_PA (OMAP2_SRAM_PA + 0xf800) +#define OMAP3_SRAM_PUB_PA (OMAP3_SRAM_PA + 0x8000) + +#define SRAM_BOOTLOADER_SZ 0x00 + +#define OMAP24XX_VA_REQINFOPERM0 OMAP2_L3_IO_ADDRESS(0x68005048) +#define OMAP24XX_VA_READPERM0 OMAP2_L3_IO_ADDRESS(0x68005050) +#define OMAP24XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68005058) + +#define OMAP34XX_VA_REQINFOPERM0 OMAP2_L3_IO_ADDRESS(0x68012848) +#define OMAP34XX_VA_READPERM0 OMAP2_L3_IO_ADDRESS(0x68012850) +#define OMAP34XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68012858) +#define OMAP34XX_VA_ADDR_MATCH2 OMAP2_L3_IO_ADDRESS(0x68012880) +#define OMAP34XX_VA_SMS_RG_ATT0 OMAP2_L3_IO_ADDRESS(0x6C000048) + +#define GP_DEVICE 0x300 + +#define ROUND_DOWN(value, boundary) ((value) & (~((boundary) - 1))) + +static unsigned long omap_sram_start; +static unsigned long omap_sram_size; +static void __iomem *omap_sram_base; +static unsigned long omap_sram_skip; +static void __iomem *omap_sram_ceil; + +/* + * Memory allocator for SRAM: calculates the new ceiling address + * for pushing a function using the fncpy API. + * + * Note that fncpy requires the returned address to be aligned + * to an 8-byte boundary. + */ +static void *omap_sram_push_address(unsigned long size) +{ + unsigned long available, new_ceil = (unsigned long)omap_sram_ceil; + + available = omap_sram_ceil - (omap_sram_base + omap_sram_skip); + + if (size > available) { + pr_err("Not enough space in SRAM\n"); + return NULL; + } + + new_ceil -= size; + new_ceil = ROUND_DOWN(new_ceil, FNCPY_ALIGN); + omap_sram_ceil = IOMEM(new_ceil); + + return (void __force *)omap_sram_ceil; +} + +void *omap_sram_push(void *funcp, unsigned long size) +{ + void *sram; + unsigned long base; + int pages; + void *dst = NULL; + + sram = omap_sram_push_address(size); + if (!sram) + return NULL; + + base = (unsigned long)sram & PAGE_MASK; + pages = PAGE_ALIGN(size) / PAGE_SIZE; + + set_memory_rw(base, pages); + + dst = fncpy(sram, funcp, size); + + set_memory_rox(base, pages); + + return dst; +} + +/* + * The SRAM context is lost during off-idle and stack + * needs to be reset. + */ +static void omap_sram_reset(void) +{ + omap_sram_ceil = omap_sram_base + omap_sram_size; +} + +/* + * Depending on the target RAMFS firewall setup, the public usable amount of + * SRAM varies. The default accessible size for all device types is 2k. A GP + * device allows ARM11 but not other initiators for full size. This + * functionality seems ok until some nice security API happens. + */ +static int is_sram_locked(void) +{ + if (omap_type() == OMAP2_DEVICE_TYPE_GP) { + /* RAMFW: R/W access to all initiators for all qualifier sets */ + if (cpu_is_omap242x()) { + writel_relaxed(0xFF, OMAP24XX_VA_REQINFOPERM0); /* all q-vects */ + writel_relaxed(0xCFDE, OMAP24XX_VA_READPERM0); /* all i-read */ + writel_relaxed(0xCFDE, OMAP24XX_VA_WRITEPERM0); /* all i-write */ + } + if (cpu_is_omap34xx()) { + writel_relaxed(0xFFFF, OMAP34XX_VA_REQINFOPERM0); /* all q-vects */ + writel_relaxed(0xFFFF, OMAP34XX_VA_READPERM0); /* all i-read */ + writel_relaxed(0xFFFF, OMAP34XX_VA_WRITEPERM0); /* all i-write */ + writel_relaxed(0x0, OMAP34XX_VA_ADDR_MATCH2); + writel_relaxed(0xFFFFFFFF, OMAP34XX_VA_SMS_RG_ATT0); + } + return 0; + } else + return 1; /* assume locked with no PPA or security driver */ +} + +/* + * The amount of SRAM depends on the core type. + * Note that we cannot try to test for SRAM here because writes + * to secure SRAM will hang the system. Also the SRAM is not + * yet mapped at this point. + */ +static void __init omap_detect_sram(void) +{ + omap_sram_skip = SRAM_BOOTLOADER_SZ; + if (is_sram_locked()) { + if (cpu_is_omap34xx()) { + omap_sram_start = OMAP3_SRAM_PUB_PA; + if ((omap_type() == OMAP2_DEVICE_TYPE_EMU) || + (omap_type() == OMAP2_DEVICE_TYPE_SEC)) { + omap_sram_size = 0x7000; /* 28K */ + omap_sram_skip += SZ_16K; + } else { + omap_sram_size = 0x8000; /* 32K */ + } + } else { + omap_sram_start = OMAP2_SRAM_PUB_PA; + omap_sram_size = 0x800; /* 2K */ + } + } else { + if (cpu_is_omap34xx()) { + omap_sram_start = OMAP3_SRAM_PA; + omap_sram_size = 0x10000; /* 64K */ + } else { + omap_sram_start = OMAP2_SRAM_PA; + if (cpu_is_omap242x()) + omap_sram_size = 0xa0000; /* 640K */ + else if (cpu_is_omap243x()) + omap_sram_size = 0x10000; /* 64K */ + } + } +} + +/* + * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early. + */ +static void __init omap2_map_sram(void) +{ + unsigned long base; + int pages; + int cached = 1; + + if (cpu_is_omap34xx()) { + /* + * SRAM must be marked as non-cached on OMAP3 since the + * CORE DPLL M2 divider change code (in SRAM) runs with the + * SDRAM controller disabled, and if it is marked cached, + * the ARM may attempt to write cache lines back to SDRAM + * which will cause the system to hang. + */ + cached = 0; + } + + if (omap_sram_size == 0) + return; + + omap_sram_start = ROUND_DOWN(omap_sram_start, PAGE_SIZE); + omap_sram_base = __arm_ioremap_exec(omap_sram_start, omap_sram_size, cached); + if (!omap_sram_base) { + pr_err("SRAM: Could not map\n"); + return; + } + + omap_sram_reset(); + + /* + * Looks like we need to preserve some bootloader code at the + * beginning of SRAM for jumping to flash for reboot to work... + */ + memset_io(omap_sram_base + omap_sram_skip, 0, + omap_sram_size - omap_sram_skip); + + base = (unsigned long)omap_sram_base; + pages = PAGE_ALIGN(omap_sram_size) / PAGE_SIZE; + + set_memory_rox(base, pages); +} + +static void (*_omap2_sram_ddr_init)(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); + +void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock) +{ + BUG_ON(!_omap2_sram_ddr_init); + _omap2_sram_ddr_init(slow_dll_ctrl, fast_dll_ctrl, + base_cs, force_unlock); +} + +static void (*_omap2_sram_reprogram_sdrc)(u32 perf_level, u32 dll_val, + u32 mem_type); + +void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type) +{ + BUG_ON(!_omap2_sram_reprogram_sdrc); + _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type); +} + +static u32 (*_omap2_set_prcm)(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); + +u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass) +{ + BUG_ON(!_omap2_set_prcm); + return _omap2_set_prcm(dpll_ctrl_val, sdrc_rfr_val, bypass); +} + +#ifdef CONFIG_SOC_OMAP2420 +static int __init omap242x_sram_init(void) +{ + _omap2_sram_ddr_init = omap_sram_push(omap242x_sram_ddr_init, + omap242x_sram_ddr_init_sz); + + _omap2_sram_reprogram_sdrc = omap_sram_push(omap242x_sram_reprogram_sdrc, + omap242x_sram_reprogram_sdrc_sz); + + _omap2_set_prcm = omap_sram_push(omap242x_sram_set_prcm, + omap242x_sram_set_prcm_sz); + + return 0; +} +#else +static inline int omap242x_sram_init(void) +{ + return 0; +} +#endif + +#ifdef CONFIG_SOC_OMAP2430 +static int __init omap243x_sram_init(void) +{ + _omap2_sram_ddr_init = omap_sram_push(omap243x_sram_ddr_init, + omap243x_sram_ddr_init_sz); + + _omap2_sram_reprogram_sdrc = omap_sram_push(omap243x_sram_reprogram_sdrc, + omap243x_sram_reprogram_sdrc_sz); + + _omap2_set_prcm = omap_sram_push(omap243x_sram_set_prcm, + omap243x_sram_set_prcm_sz); + + return 0; +} +#else +static inline int omap243x_sram_init(void) +{ + return 0; +} +#endif + +#ifdef CONFIG_ARCH_OMAP3 + +void omap3_sram_restore_context(void) +{ + omap_sram_reset(); + + omap_push_sram_idle(); +} + +static inline int omap34xx_sram_init(void) +{ + omap3_sram_restore_context(); + return 0; +} +#else +static inline int omap34xx_sram_init(void) +{ + return 0; +} +#endif /* CONFIG_ARCH_OMAP3 */ + +int __init omap_sram_init(void) +{ + omap_detect_sram(); + omap2_map_sram(); + + if (cpu_is_omap242x()) + omap242x_sram_init(); + else if (cpu_is_omap2430()) + omap243x_sram_init(); + else if (cpu_is_omap34xx()) + omap34xx_sram_init(); + + return 0; +} diff --git a/arch/arm/mach-omap2/sram.h b/arch/arm/mach-omap2/sram.h new file mode 100644 index 000000000..030cabc39 --- /dev/null +++ b/arch/arm/mach-omap2/sram.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Interface for functions that need to be run in internal SRAM + */ + +#ifndef __ASSEMBLY__ + +extern void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); +extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, + u32 mem_type); +extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); + +extern void omap3_sram_restore_context(void); + +extern int __init omap_sram_init(void); + +extern void *omap_sram_push(void *funcp, unsigned long size); + +extern void omap242x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); +extern unsigned long omap242x_sram_ddr_init_sz; + +extern u32 omap242x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, + int bypass); +extern unsigned long omap242x_sram_set_prcm_sz; + +extern void omap242x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, + u32 mem_type); +extern unsigned long omap242x_sram_reprogram_sdrc_sz; + + +extern void omap243x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl, + u32 base_cs, u32 force_unlock); +extern unsigned long omap243x_sram_ddr_init_sz; + +extern u32 omap243x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, + int bypass); +extern unsigned long omap243x_sram_set_prcm_sz; + +extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, + u32 mem_type); +extern unsigned long omap243x_sram_reprogram_sdrc_sz; + +#ifdef CONFIG_PM +extern void omap_push_sram_idle(void); +#else +static inline void omap_push_sram_idle(void) {} +#endif /* CONFIG_PM */ + +#endif /* __ASSEMBLY__ */ + +/* + * OMAP2+: define the SRAM PA addresses. + * Used by the SRAM management code and the idle sleep code. + */ +#define OMAP2_SRAM_PA 0x40200000 +#define OMAP3_SRAM_PA 0x40200000 diff --git a/arch/arm/mach-omap2/sram242x.S b/arch/arm/mach-omap2/sram242x.S new file mode 100644 index 000000000..92ef21ac2 --- /dev/null +++ b/arch/arm/mach-omap2/sram242x.S @@ -0,0 +1,317 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * linux/arch/arm/mach-omap2/sram242x.S + * + * Omap2 specific functions that need to be run in internal SRAM + * + * (C) Copyright 2004 + * Texas Instruments, <www.ti.com> + * Richard Woodruff <r-woodruff2@ti.com> + * + * Richard Woodruff notes that any changes to this code must be carefully + * audited and tested to ensure that they don't cause a TLB miss while + * the SDRAM is inaccessible. Such a situation will crash the system + * since it will cause the ARM MMU to attempt to walk the page tables. + * These crashes may be intermittent. + */ +#include <linux/linkage.h> + +#include <asm/assembler.h> + +#include "soc.h" +#include "iomap.h" +#include "prm2xxx.h" +#include "cm2xxx.h" +#include "sdrc.h" + + .text + + .align 3 +ENTRY(omap242x_sram_ddr_init) + stmfd sp!, {r0 - r12, lr} @ save registers on stack + + mov r12, r2 @ capture CS1 vs CS0 + mov r8, r3 @ capture force parameter + + /* frequency shift down */ + ldr r2, omap242x_sdi_cm_clksel2_pll @ get address of dpllout reg + mov r3, #0x1 @ value for 1x operation + str r3, [r2] @ go to L1-freq operation + + /* voltage shift down */ + mov r9, #0x1 @ set up for L1 voltage call + bl voltage_shift @ go drop voltage + + /* dll lock mode */ + ldr r11, omap242x_sdi_sdrc_dlla_ctrl @ addr of dlla ctrl + ldr r10, [r11] @ get current val + cmp r12, #0x1 @ cs1 base (2422 es2.05/1) + addeq r11, r11, #0x8 @ if cs1 base, move to DLLB + mvn r9, #0x4 @ mask to get clear bit2 + and r10, r10, r9 @ clear bit2 for lock mode. + orr r10, r10, #0x8 @ make sure DLL on (es2 bit pos) + orr r10, r10, #0x2 @ 90 degree phase for all below 133MHz + str r10, [r11] @ commit to DLLA_CTRL + bl i_dll_wait @ wait for dll to lock + + /* get dll value */ + add r11, r11, #0x4 @ get addr of status reg + ldr r10, [r11] @ get locked value + + /* voltage shift up */ + mov r9, #0x0 @ shift back to L0-voltage + bl voltage_shift @ go raise voltage + + /* frequency shift up */ + mov r3, #0x2 @ value for 2x operation + str r3, [r2] @ go to L0-freq operation + + /* reset entry mode for dllctrl */ + sub r11, r11, #0x4 @ move from status to ctrl + cmp r12, #0x1 @ normalize if cs1 based + subeq r11, r11, #0x8 @ possibly back to DLLA + cmp r8, #0x1 @ if forced unlock exit + orreq r1, r1, #0x4 @ make sure exit with unlocked value + str r1, [r11] @ restore DLLA_CTRL high value + add r11, r11, #0x8 @ move to DLLB_CTRL addr + str r1, [r11] @ set value DLLB_CTRL + bl i_dll_wait @ wait for possible lock + + /* set up for return, DDR should be good */ + str r10, [r0] @ write dll_status and return counter + ldmfd sp!, {r0 - r12, pc} @ restore regs and return + + /* ensure the DLL has relocked */ +i_dll_wait: + mov r4, #0x800 @ delay DLL relock, min 0x400 L3 clocks +i_dll_delay: + subs r4, r4, #0x1 + bne i_dll_delay + ret lr + + /* + * shift up or down voltage, use R9 as input to tell level. + * wait for it to finish, use 32k sync counter, 1tick=31uS. + */ +voltage_shift: + ldr r4, omap242x_sdi_prcm_voltctrl @ get addr of volt ctrl. + ldr r5, [r4] @ get value. + ldr r6, prcm_mask_val @ get value of mask + and r5, r5, r6 @ apply mask to clear bits + orr r5, r5, r9 @ bulld value for L0/L1-volt operation. + str r5, [r4] @ set up for change. + mov r3, #0x4000 @ get val for force + orr r5, r5, r3 @ build value for force + str r5, [r4] @ Force transition to L1 + + ldr r3, omap242x_sdi_timer_32ksynct_cr @ get addr of counter + ldr r5, [r3] @ get value + add r5, r5, #0x3 @ give it at most 93uS +volt_delay: + ldr r7, [r3] @ get timer value + cmp r5, r7 @ time up? + bhi volt_delay @ not yet->branch + ret lr @ back to caller. + +omap242x_sdi_cm_clksel2_pll: + .word OMAP2420_CM_REGADDR(PLL_MOD, CM_CLKSEL2) +omap242x_sdi_sdrc_dlla_ctrl: + .word OMAP242X_SDRC_REGADDR(SDRC_DLLA_CTRL) +omap242x_sdi_prcm_voltctrl: + .word OMAP2420_PRCM_VOLTCTRL +prcm_mask_val: + .word 0xFFFF3FFC +omap242x_sdi_timer_32ksynct_cr: + .word OMAP2_L4_IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010) +ENTRY(omap242x_sram_ddr_init_sz) + .word . - omap242x_sram_ddr_init + +/* + * Reprograms memory timings. + * r0 = [PRCM_FULL | PRCM_HALF] r1 = SDRC_DLLA_CTRL value r2 = [DDR | SDR] + * PRCM_FULL = 2, PRCM_HALF = 1, DDR = 1, SDR = 0 + */ + .align 3 +ENTRY(omap242x_sram_reprogram_sdrc) + stmfd sp!, {r0 - r10, lr} @ save registers on stack + mov r3, #0x0 @ clear for mrc call + mcr p15, 0, r3, c7, c10, 4 @ memory barrier, finish ARM SDR/DDR + nop + nop + ldr r6, omap242x_srs_sdrc_rfr_ctrl @ get addr of refresh reg + ldr r5, [r6] @ get value + mov r5, r5, lsr #8 @ isolate rfr field and drop burst + + cmp r0, #0x1 @ going to half speed? + movne r9, #0x0 @ if up set flag up for pre up, hi volt + + blne voltage_shift_c @ adjust voltage + + cmp r0, #0x1 @ going to half speed (post branch link) + moveq r5, r5, lsr #1 @ divide by 2 if to half + movne r5, r5, lsl #1 @ mult by 2 if to full + mov r5, r5, lsl #8 @ put rfr field back into place + add r5, r5, #0x1 @ turn on burst of 1 + ldr r4, omap242x_srs_cm_clksel2_pll @ get address of out reg + ldr r3, [r4] @ get curr value + orr r3, r3, #0x3 + bic r3, r3, #0x3 @ clear lower bits + orr r3, r3, r0 @ new state value + str r3, [r4] @ set new state (pll/x, x=1 or 2) + nop + nop + + moveq r9, #0x1 @ if speed down, post down, drop volt + bleq voltage_shift_c + + mcr p15, 0, r3, c7, c10, 4 @ memory barrier + str r5, [r6] @ set new RFR_1 value + add r6, r6, #0x30 @ get RFR_2 addr + str r5, [r6] @ set RFR_2 + nop + cmp r2, #0x1 @ (SDR or DDR) do we need to adjust DLL + bne freq_out @ leave if SDR, no DLL function + + /* With DDR, we need to take care of the DLL for the frequency change */ + ldr r2, omap242x_srs_sdrc_dlla_ctrl @ addr of dlla ctrl + str r1, [r2] @ write out new SDRC_DLLA_CTRL + add r2, r2, #0x8 @ addr to SDRC_DLLB_CTRL + str r1, [r2] @ commit to SDRC_DLLB_CTRL + mov r1, #0x2000 @ wait DLL relock, min 0x400 L3 clocks +dll_wait: + subs r1, r1, #0x1 + bne dll_wait +freq_out: + ldmfd sp!, {r0 - r10, pc} @ restore regs and return + + /* + * shift up or down voltage, use R9 as input to tell level. + * wait for it to finish, use 32k sync counter, 1tick=31uS. + */ +voltage_shift_c: + ldr r10, omap242x_srs_prcm_voltctrl @ get addr of volt ctrl + ldr r8, [r10] @ get value + ldr r7, ddr_prcm_mask_val @ get value of mask + and r8, r8, r7 @ apply mask to clear bits + orr r8, r8, r9 @ bulld value for L0/L1-volt operation. + str r8, [r10] @ set up for change. + mov r7, #0x4000 @ get val for force + orr r8, r8, r7 @ build value for force + str r8, [r10] @ Force transition to L1 + + ldr r10, omap242x_srs_timer_32ksynct @ get addr of counter + ldr r8, [r10] @ get value + add r8, r8, #0x2 @ give it at most 62uS (min 31+) +volt_delay_c: + ldr r7, [r10] @ get timer value + cmp r8, r7 @ time up? + bhi volt_delay_c @ not yet->branch + ret lr @ back to caller + +omap242x_srs_cm_clksel2_pll: + .word OMAP2420_CM_REGADDR(PLL_MOD, CM_CLKSEL2) +omap242x_srs_sdrc_dlla_ctrl: + .word OMAP242X_SDRC_REGADDR(SDRC_DLLA_CTRL) +omap242x_srs_sdrc_rfr_ctrl: + .word OMAP242X_SDRC_REGADDR(SDRC_RFR_CTRL_0) +omap242x_srs_prcm_voltctrl: + .word OMAP2420_PRCM_VOLTCTRL +ddr_prcm_mask_val: + .word 0xFFFF3FFC +omap242x_srs_timer_32ksynct: + .word OMAP2_L4_IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010) + +ENTRY(omap242x_sram_reprogram_sdrc_sz) + .word . - omap242x_sram_reprogram_sdrc + +/* + * Set dividers and pll. Also recalculate DLL value for DDR and unlock mode. + */ + .align 3 +ENTRY(omap242x_sram_set_prcm) + stmfd sp!, {r0-r12, lr} @ regs to stack + adr r4, pbegin @ addr of preload start + adr r8, pend @ addr of preload end + mcrr p15, 1, r8, r4, c12 @ preload into icache +pbegin: + /* move into fast relock bypass */ + ldr r8, omap242x_ssp_pll_ctl @ get addr + ldr r5, [r8] @ get val + mvn r6, #0x3 @ clear mask + and r5, r5, r6 @ clear field + orr r7, r5, #0x2 @ fast relock val + str r7, [r8] @ go to fast relock + ldr r4, omap242x_ssp_pll_stat @ addr of stat +block: + /* wait for bypass */ + ldr r8, [r4] @ stat value + and r8, r8, #0x3 @ mask for stat + cmp r8, #0x1 @ there yet + bne block @ loop if not + + /* set new dpll dividers _after_ in bypass */ + ldr r4, omap242x_ssp_pll_div @ get addr + str r0, [r4] @ set dpll ctrl val + + ldr r4, omap242x_ssp_set_config @ get addr + mov r8, #1 @ valid cfg msk + str r8, [r4] @ make dividers take + + mov r4, #100 @ dead spin a bit +wait_a_bit: + subs r4, r4, #1 @ dec loop + bne wait_a_bit @ delay done? + + /* check if staying in bypass */ + cmp r2, #0x1 @ stay in bypass? + beq pend @ jump over dpll relock + + /* relock DPLL with new vals */ + ldr r5, omap242x_ssp_pll_stat @ get addr + ldr r4, omap242x_ssp_pll_ctl @ get addr + orr r8, r7, #0x3 @ val for lock dpll + str r8, [r4] @ set val + mov r0, #1000 @ dead spin a bit +wait_more: + subs r0, r0, #1 @ dec loop + bne wait_more @ delay done? +wait_lock: + ldr r8, [r5] @ get lock val + and r8, r8, #3 @ isolate field + cmp r8, #2 @ locked? + bne wait_lock @ wait if not +pend: + /* update memory timings & briefly lock dll */ + ldr r4, omap242x_ssp_sdrc_rfr @ get addr + str r1, [r4] @ update refresh timing + ldr r11, omap242x_ssp_dlla_ctrl @ get addr of DLLA ctrl + ldr r10, [r11] @ get current val + mvn r9, #0x4 @ mask to get clear bit2 + and r10, r10, r9 @ clear bit2 for lock mode + orr r10, r10, #0x8 @ make sure DLL on (es2 bit pos) + str r10, [r11] @ commit to DLLA_CTRL + add r11, r11, #0x8 @ move to dllb + str r10, [r11] @ hit DLLB also + + mov r4, #0x800 @ relock time (min 0x400 L3 clocks) +wait_dll_lock: + subs r4, r4, #0x1 + bne wait_dll_lock + nop + ldmfd sp!, {r0-r12, pc} @ restore regs and return + +omap242x_ssp_set_config: + .word OMAP2420_PRCM_CLKCFG_CTRL +omap242x_ssp_pll_ctl: + .word OMAP2420_CM_REGADDR(PLL_MOD, CM_CLKEN) +omap242x_ssp_pll_stat: + .word OMAP2420_CM_REGADDR(PLL_MOD, CM_IDLEST) +omap242x_ssp_pll_div: + .word OMAP2420_CM_REGADDR(PLL_MOD, CM_CLKSEL1) +omap242x_ssp_sdrc_rfr: + .word OMAP242X_SDRC_REGADDR(SDRC_RFR_CTRL_0) +omap242x_ssp_dlla_ctrl: + .word OMAP242X_SDRC_REGADDR(SDRC_DLLA_CTRL) + +ENTRY(omap242x_sram_set_prcm_sz) + .word . - omap242x_sram_set_prcm diff --git a/arch/arm/mach-omap2/sram243x.S b/arch/arm/mach-omap2/sram243x.S new file mode 100644 index 000000000..faf03b7f0 --- /dev/null +++ b/arch/arm/mach-omap2/sram243x.S @@ -0,0 +1,317 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * linux/arch/arm/mach-omap2/sram243x.S + * + * Omap2 specific functions that need to be run in internal SRAM + * + * (C) Copyright 2004 + * Texas Instruments, <www.ti.com> + * Richard Woodruff <r-woodruff2@ti.com> + * + * Richard Woodruff notes that any changes to this code must be carefully + * audited and tested to ensure that they don't cause a TLB miss while + * the SDRAM is inaccessible. Such a situation will crash the system + * since it will cause the ARM MMU to attempt to walk the page tables. + * These crashes may be intermittent. + */ +#include <linux/linkage.h> + +#include <asm/assembler.h> + +#include "soc.h" +#include "iomap.h" +#include "prm2xxx.h" +#include "cm2xxx.h" +#include "sdrc.h" + + .text + + .align 3 +ENTRY(omap243x_sram_ddr_init) + stmfd sp!, {r0 - r12, lr} @ save registers on stack + + mov r12, r2 @ capture CS1 vs CS0 + mov r8, r3 @ capture force parameter + + /* frequency shift down */ + ldr r2, omap243x_sdi_cm_clksel2_pll @ get address of dpllout reg + mov r3, #0x1 @ value for 1x operation + str r3, [r2] @ go to L1-freq operation + + /* voltage shift down */ + mov r9, #0x1 @ set up for L1 voltage call + bl voltage_shift @ go drop voltage + + /* dll lock mode */ + ldr r11, omap243x_sdi_sdrc_dlla_ctrl @ addr of dlla ctrl + ldr r10, [r11] @ get current val + cmp r12, #0x1 @ cs1 base (2422 es2.05/1) + addeq r11, r11, #0x8 @ if cs1 base, move to DLLB + mvn r9, #0x4 @ mask to get clear bit2 + and r10, r10, r9 @ clear bit2 for lock mode. + orr r10, r10, #0x8 @ make sure DLL on (es2 bit pos) + orr r10, r10, #0x2 @ 90 degree phase for all below 133MHz + str r10, [r11] @ commit to DLLA_CTRL + bl i_dll_wait @ wait for dll to lock + + /* get dll value */ + add r11, r11, #0x4 @ get addr of status reg + ldr r10, [r11] @ get locked value + + /* voltage shift up */ + mov r9, #0x0 @ shift back to L0-voltage + bl voltage_shift @ go raise voltage + + /* frequency shift up */ + mov r3, #0x2 @ value for 2x operation + str r3, [r2] @ go to L0-freq operation + + /* reset entry mode for dllctrl */ + sub r11, r11, #0x4 @ move from status to ctrl + cmp r12, #0x1 @ normalize if cs1 based + subeq r11, r11, #0x8 @ possibly back to DLLA + cmp r8, #0x1 @ if forced unlock exit + orreq r1, r1, #0x4 @ make sure exit with unlocked value + str r1, [r11] @ restore DLLA_CTRL high value + add r11, r11, #0x8 @ move to DLLB_CTRL addr + str r1, [r11] @ set value DLLB_CTRL + bl i_dll_wait @ wait for possible lock + + /* set up for return, DDR should be good */ + str r10, [r0] @ write dll_status and return counter + ldmfd sp!, {r0 - r12, pc} @ restore regs and return + + /* ensure the DLL has relocked */ +i_dll_wait: + mov r4, #0x800 @ delay DLL relock, min 0x400 L3 clocks +i_dll_delay: + subs r4, r4, #0x1 + bne i_dll_delay + ret lr + + /* + * shift up or down voltage, use R9 as input to tell level. + * wait for it to finish, use 32k sync counter, 1tick=31uS. + */ +voltage_shift: + ldr r4, omap243x_sdi_prcm_voltctrl @ get addr of volt ctrl. + ldr r5, [r4] @ get value. + ldr r6, prcm_mask_val @ get value of mask + and r5, r5, r6 @ apply mask to clear bits + orr r5, r5, r9 @ bulld value for L0/L1-volt operation. + str r5, [r4] @ set up for change. + mov r3, #0x4000 @ get val for force + orr r5, r5, r3 @ build value for force + str r5, [r4] @ Force transition to L1 + + ldr r3, omap243x_sdi_timer_32ksynct_cr @ get addr of counter + ldr r5, [r3] @ get value + add r5, r5, #0x3 @ give it at most 93uS +volt_delay: + ldr r7, [r3] @ get timer value + cmp r5, r7 @ time up? + bhi volt_delay @ not yet->branch + ret lr @ back to caller. + +omap243x_sdi_cm_clksel2_pll: + .word OMAP2430_CM_REGADDR(PLL_MOD, CM_CLKSEL2) +omap243x_sdi_sdrc_dlla_ctrl: + .word OMAP243X_SDRC_REGADDR(SDRC_DLLA_CTRL) +omap243x_sdi_prcm_voltctrl: + .word OMAP2430_PRCM_VOLTCTRL +prcm_mask_val: + .word 0xFFFF3FFC +omap243x_sdi_timer_32ksynct_cr: + .word OMAP2_L4_IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010) +ENTRY(omap243x_sram_ddr_init_sz) + .word . - omap243x_sram_ddr_init + +/* + * Reprograms memory timings. + * r0 = [PRCM_FULL | PRCM_HALF] r1 = SDRC_DLLA_CTRL value r2 = [DDR | SDR] + * PRCM_FULL = 2, PRCM_HALF = 1, DDR = 1, SDR = 0 + */ + .align 3 +ENTRY(omap243x_sram_reprogram_sdrc) + stmfd sp!, {r0 - r10, lr} @ save registers on stack + mov r3, #0x0 @ clear for mrc call + mcr p15, 0, r3, c7, c10, 4 @ memory barrier, finish ARM SDR/DDR + nop + nop + ldr r6, omap243x_srs_sdrc_rfr_ctrl @ get addr of refresh reg + ldr r5, [r6] @ get value + mov r5, r5, lsr #8 @ isolate rfr field and drop burst + + cmp r0, #0x1 @ going to half speed? + movne r9, #0x0 @ if up set flag up for pre up, hi volt + + blne voltage_shift_c @ adjust voltage + + cmp r0, #0x1 @ going to half speed (post branch link) + moveq r5, r5, lsr #1 @ divide by 2 if to half + movne r5, r5, lsl #1 @ mult by 2 if to full + mov r5, r5, lsl #8 @ put rfr field back into place + add r5, r5, #0x1 @ turn on burst of 1 + ldr r4, omap243x_srs_cm_clksel2_pll @ get address of out reg + ldr r3, [r4] @ get curr value + orr r3, r3, #0x3 + bic r3, r3, #0x3 @ clear lower bits + orr r3, r3, r0 @ new state value + str r3, [r4] @ set new state (pll/x, x=1 or 2) + nop + nop + + moveq r9, #0x1 @ if speed down, post down, drop volt + bleq voltage_shift_c + + mcr p15, 0, r3, c7, c10, 4 @ memory barrier + str r5, [r6] @ set new RFR_1 value + add r6, r6, #0x30 @ get RFR_2 addr + str r5, [r6] @ set RFR_2 + nop + cmp r2, #0x1 @ (SDR or DDR) do we need to adjust DLL + bne freq_out @ leave if SDR, no DLL function + + /* With DDR, we need to take care of the DLL for the frequency change */ + ldr r2, omap243x_srs_sdrc_dlla_ctrl @ addr of dlla ctrl + str r1, [r2] @ write out new SDRC_DLLA_CTRL + add r2, r2, #0x8 @ addr to SDRC_DLLB_CTRL + str r1, [r2] @ commit to SDRC_DLLB_CTRL + mov r1, #0x2000 @ wait DLL relock, min 0x400 L3 clocks +dll_wait: + subs r1, r1, #0x1 + bne dll_wait +freq_out: + ldmfd sp!, {r0 - r10, pc} @ restore regs and return + + /* + * shift up or down voltage, use R9 as input to tell level. + * wait for it to finish, use 32k sync counter, 1tick=31uS. + */ +voltage_shift_c: + ldr r10, omap243x_srs_prcm_voltctrl @ get addr of volt ctrl + ldr r8, [r10] @ get value + ldr r7, ddr_prcm_mask_val @ get value of mask + and r8, r8, r7 @ apply mask to clear bits + orr r8, r8, r9 @ bulld value for L0/L1-volt operation. + str r8, [r10] @ set up for change. + mov r7, #0x4000 @ get val for force + orr r8, r8, r7 @ build value for force + str r8, [r10] @ Force transition to L1 + + ldr r10, omap243x_srs_timer_32ksynct @ get addr of counter + ldr r8, [r10] @ get value + add r8, r8, #0x2 @ give it at most 62uS (min 31+) +volt_delay_c: + ldr r7, [r10] @ get timer value + cmp r8, r7 @ time up? + bhi volt_delay_c @ not yet->branch + ret lr @ back to caller + +omap243x_srs_cm_clksel2_pll: + .word OMAP2430_CM_REGADDR(PLL_MOD, CM_CLKSEL2) +omap243x_srs_sdrc_dlla_ctrl: + .word OMAP243X_SDRC_REGADDR(SDRC_DLLA_CTRL) +omap243x_srs_sdrc_rfr_ctrl: + .word OMAP243X_SDRC_REGADDR(SDRC_RFR_CTRL_0) +omap243x_srs_prcm_voltctrl: + .word OMAP2430_PRCM_VOLTCTRL +ddr_prcm_mask_val: + .word 0xFFFF3FFC +omap243x_srs_timer_32ksynct: + .word OMAP2_L4_IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010) + +ENTRY(omap243x_sram_reprogram_sdrc_sz) + .word . - omap243x_sram_reprogram_sdrc + +/* + * Set dividers and pll. Also recalculate DLL value for DDR and unlock mode. + */ + .align 3 +ENTRY(omap243x_sram_set_prcm) + stmfd sp!, {r0-r12, lr} @ regs to stack + adr r4, pbegin @ addr of preload start + adr r8, pend @ addr of preload end + mcrr p15, 1, r8, r4, c12 @ preload into icache +pbegin: + /* move into fast relock bypass */ + ldr r8, omap243x_ssp_pll_ctl @ get addr + ldr r5, [r8] @ get val + mvn r6, #0x3 @ clear mask + and r5, r5, r6 @ clear field + orr r7, r5, #0x2 @ fast relock val + str r7, [r8] @ go to fast relock + ldr r4, omap243x_ssp_pll_stat @ addr of stat +block: + /* wait for bypass */ + ldr r8, [r4] @ stat value + and r8, r8, #0x3 @ mask for stat + cmp r8, #0x1 @ there yet + bne block @ loop if not + + /* set new dpll dividers _after_ in bypass */ + ldr r4, omap243x_ssp_pll_div @ get addr + str r0, [r4] @ set dpll ctrl val + + ldr r4, omap243x_ssp_set_config @ get addr + mov r8, #1 @ valid cfg msk + str r8, [r4] @ make dividers take + + mov r4, #100 @ dead spin a bit +wait_a_bit: + subs r4, r4, #1 @ dec loop + bne wait_a_bit @ delay done? + + /* check if staying in bypass */ + cmp r2, #0x1 @ stay in bypass? + beq pend @ jump over dpll relock + + /* relock DPLL with new vals */ + ldr r5, omap243x_ssp_pll_stat @ get addr + ldr r4, omap243x_ssp_pll_ctl @ get addr + orr r8, r7, #0x3 @ val for lock dpll + str r8, [r4] @ set val + mov r0, #1000 @ dead spin a bit +wait_more: + subs r0, r0, #1 @ dec loop + bne wait_more @ delay done? +wait_lock: + ldr r8, [r5] @ get lock val + and r8, r8, #3 @ isolate field + cmp r8, #2 @ locked? + bne wait_lock @ wait if not +pend: + /* update memory timings & briefly lock dll */ + ldr r4, omap243x_ssp_sdrc_rfr @ get addr + str r1, [r4] @ update refresh timing + ldr r11, omap243x_ssp_dlla_ctrl @ get addr of DLLA ctrl + ldr r10, [r11] @ get current val + mvn r9, #0x4 @ mask to get clear bit2 + and r10, r10, r9 @ clear bit2 for lock mode + orr r10, r10, #0x8 @ make sure DLL on (es2 bit pos) + str r10, [r11] @ commit to DLLA_CTRL + add r11, r11, #0x8 @ move to dllb + str r10, [r11] @ hit DLLB also + + mov r4, #0x800 @ relock time (min 0x400 L3 clocks) +wait_dll_lock: + subs r4, r4, #0x1 + bne wait_dll_lock + nop + ldmfd sp!, {r0-r12, pc} @ restore regs and return + +omap243x_ssp_set_config: + .word OMAP2430_PRCM_CLKCFG_CTRL +omap243x_ssp_pll_ctl: + .word OMAP2430_CM_REGADDR(PLL_MOD, CM_CLKEN) +omap243x_ssp_pll_stat: + .word OMAP2430_CM_REGADDR(PLL_MOD, CM_IDLEST) +omap243x_ssp_pll_div: + .word OMAP2430_CM_REGADDR(PLL_MOD, CM_CLKSEL1) +omap243x_ssp_sdrc_rfr: + .word OMAP243X_SDRC_REGADDR(SDRC_RFR_CTRL_0) +omap243x_ssp_dlla_ctrl: + .word OMAP243X_SDRC_REGADDR(SDRC_DLLA_CTRL) + +ENTRY(omap243x_sram_set_prcm_sz) + .word . - omap243x_sram_set_prcm diff --git a/arch/arm/mach-omap2/ti81xx-restart.c b/arch/arm/mach-omap2/ti81xx-restart.c new file mode 100644 index 000000000..5b5fb37ca --- /dev/null +++ b/arch/arm/mach-omap2/ti81xx-restart.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/reboot.h> + +#include "iomap.h" +#include "common.h" +#include "control.h" +#include "prm3xxx.h" + +#define TI81XX_PRM_DEVICE_RSTCTRL 0x00a0 +#define TI81XX_GLOBAL_RST_COLD BIT(1) + +/** + * ti81xx_restart - trigger a software restart of the SoC + * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c + * @cmd: passed from the userspace program rebooting the system (if provided) + * + * Resets the SoC. For @cmd, see the 'reboot' syscall in + * kernel/sys.c. No return value. + * + * NOTE: Warm reset does not seem to work, may require resetting + * clocks to bypass mode. + */ +void ti81xx_restart(enum reboot_mode mode, const char *cmd) +{ + omap2_prm_set_mod_reg_bits(TI81XX_GLOBAL_RST_COLD, 0, + TI81XX_PRM_DEVICE_RSTCTRL); + while (1) + ; +} diff --git a/arch/arm/mach-omap2/ti81xx.h b/arch/arm/mach-omap2/ti81xx.h new file mode 100644 index 000000000..fe9f7f388 --- /dev/null +++ b/arch/arm/mach-omap2/ti81xx.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * This file contains the address data for various TI81XX modules. + * + * Copyright (C) 2010 Texas Instruments, Inc. - https://www.ti.com/ + */ + +#ifndef __ASM_ARCH_TI81XX_H +#define __ASM_ARCH_TI81XX_H + +#define L4_SLOW_TI81XX_BASE 0x48000000 + +#define TI81XX_SCM_BASE 0x48140000 +#define TI81XX_CTRL_BASE TI81XX_SCM_BASE +#define TI81XX_PRCM_BASE 0x48180000 + +/* + * Adjust TAP register base such that omap3_check_revision accesses the correct + * TI81XX register for checking device ID (it adds 0x204 to tap base while + * TI81XX DEVICE ID register is at offset 0x600 from control base). + */ +#define TI81XX_TAP_BASE (TI81XX_CTRL_BASE + \ + TI81XX_CONTROL_DEVICE_ID - 0x204) + + +#define TI81XX_ARM_INTC_BASE 0x48200000 + +#endif /* __ASM_ARCH_TI81XX_H */ diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c new file mode 100644 index 000000000..5677c4a08 --- /dev/null +++ b/arch/arm/mach-omap2/timer.c @@ -0,0 +1,167 @@ +/* + * linux/arch/arm/mach-omap2/timer.c + * + * OMAP2 GP timer support. + * + * Copyright (C) 2009 Nokia Corporation + * + * Update to use new clocksource/clockevent layers + * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com> + * Copyright (C) 2007 MontaVista Software, Inc. + * + * Original driver: + * Copyright (C) 2005 Nokia Corporation + * Author: Paul Mundt <paul.mundt@nokia.com> + * Juha Yrjölä <juha.yrjola@nokia.com> + * OMAP Dual-mode timer framework support by Timo Teras + * + * Some parts based off of TI's 24xx code: + * + * Copyright (C) 2004-2009 Texas Instruments, Inc. + * + * Roughly modelled after the OMAP1 MPU timer code. + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/clk.h> +#include <linux/clocksource.h> + +#include "soc.h" +#include "common.h" +#include "control.h" +#include "omap-secure.h" + +#define REALTIME_COUNTER_BASE 0x48243200 +#define INCREMENTER_NUMERATOR_OFFSET 0x10 +#define INCREMENTER_DENUMERATOR_RELOAD_OFFSET 0x14 +#define NUMERATOR_DENUMERATOR_MASK 0xfffff000 + +static unsigned long arch_timer_freq; + +void set_cntfreq(void) +{ + omap_smc1(OMAP5_DRA7_MON_SET_CNTFRQ_INDEX, arch_timer_freq); +} + +/* + * The realtime counter also called master counter, is a free-running + * counter, which is related to real time. It produces the count used + * by the CPU local timer peripherals in the MPU cluster. The timer counts + * at a rate of 6.144 MHz. Because the device operates on different clocks + * in different power modes, the master counter shifts operation between + * clocks, adjusting the increment per clock in hardware accordingly to + * maintain a constant count rate. + */ +static void __init realtime_counter_init(void) +{ + void __iomem *base; + static struct clk *sys_clk; + unsigned long rate; + unsigned int reg; + unsigned long long num, den; + + base = ioremap(REALTIME_COUNTER_BASE, SZ_32); + if (!base) { + pr_err("%s: ioremap failed\n", __func__); + return; + } + sys_clk = clk_get(NULL, "sys_clkin"); + if (IS_ERR(sys_clk)) { + pr_err("%s: failed to get system clock handle\n", __func__); + iounmap(base); + return; + } + + rate = clk_get_rate(sys_clk); + clk_put(sys_clk); + + if (soc_is_dra7xx()) { + /* + * Errata i856 says the 32.768KHz crystal does not start at + * power on, so the CPU falls back to an emulated 32KHz clock + * based on sysclk / 610 instead. This causes the master counter + * frequency to not be 6.144MHz but at sysclk / 610 * 375 / 2 + * (OR sysclk * 75 / 244) + * + * This affects at least the DRA7/AM572x 1.0, 1.1 revisions. + * Of course any board built without a populated 32.768KHz + * crystal would also need this fix even if the CPU is fixed + * later. + * + * Either case can be detected by using the two speedselect bits + * If they are not 0, then the 32.768KHz clock driving the + * coarse counter that corrects the fine counter every time it + * ticks is actually rate/610 rather than 32.768KHz and we + * should compensate to avoid the 570ppm (at 20MHz, much worse + * at other rates) too fast system time. + */ + reg = omap_ctrl_readl(DRA7_CTRL_CORE_BOOTSTRAP); + if (reg & DRA7_SPEEDSELECT_MASK) { + num = 75; + den = 244; + goto sysclk1_based; + } + } + + /* Numerator/denumerator values refer TRM Realtime Counter section */ + switch (rate) { + case 12000000: + num = 64; + den = 125; + break; + case 13000000: + num = 768; + den = 1625; + break; + case 19200000: + num = 8; + den = 25; + break; + case 20000000: + num = 192; + den = 625; + break; + case 26000000: + num = 384; + den = 1625; + break; + case 27000000: + num = 256; + den = 1125; + break; + case 38400000: + default: + /* Program it for 38.4 MHz */ + num = 4; + den = 25; + break; + } + +sysclk1_based: + /* Program numerator and denumerator registers */ + reg = readl_relaxed(base + INCREMENTER_NUMERATOR_OFFSET) & + NUMERATOR_DENUMERATOR_MASK; + reg |= num; + writel_relaxed(reg, base + INCREMENTER_NUMERATOR_OFFSET); + + reg = readl_relaxed(base + INCREMENTER_DENUMERATOR_RELOAD_OFFSET) & + NUMERATOR_DENUMERATOR_MASK; + reg |= den; + writel_relaxed(reg, base + INCREMENTER_DENUMERATOR_RELOAD_OFFSET); + + arch_timer_freq = DIV_ROUND_UP_ULL(rate * num, den); + set_cntfreq(); + + iounmap(base); +} + +void __init omap5_realtime_timer_init(void) +{ + omap_clk_init(); + realtime_counter_init(); + + timer_probe(); +} diff --git a/arch/arm/mach-omap2/usb-tusb6010.c b/arch/arm/mach-omap2/usb-tusb6010.c new file mode 100644 index 000000000..b46c254c2 --- /dev/null +++ b/arch/arm/mach-omap2/usb-tusb6010.c @@ -0,0 +1,217 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-omap2/usb-tusb6010.c + * + * Copyright (C) 2006 Nokia Corporation + */ + +#include <linux/err.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/platform_device.h> +#include <linux/export.h> +#include <linux/platform_data/usb-omap.h> + +#include <linux/usb/musb.h> + +#include "usb-tusb6010.h" +#include "gpmc.h" + +static u8 async_cs, sync_cs; +static unsigned refclk_psec; + +static struct gpmc_settings tusb_async = { + .wait_on_read = true, + .wait_on_write = true, + .device_width = GPMC_DEVWIDTH_16BIT, + .mux_add_data = GPMC_MUX_AD, +}; + +static struct gpmc_settings tusb_sync = { + .burst_read = true, + .burst_write = true, + .sync_read = true, + .sync_write = true, + .wait_on_read = true, + .wait_on_write = true, + .burst_len = GPMC_BURST_16, + .device_width = GPMC_DEVWIDTH_16BIT, + .mux_add_data = GPMC_MUX_AD, +}; + +/* NOTE: timings are from tusb 6010 datasheet Rev 1.8, 12-Sept 2006 */ + +static int tusb_set_async_mode(unsigned sysclk_ps) +{ + struct gpmc_device_timings dev_t; + struct gpmc_timings t; + unsigned t_acsnh_advnh = sysclk_ps + 3000; + + memset(&dev_t, 0, sizeof(dev_t)); + + dev_t.t_ceasu = 8 * 1000; + dev_t.t_avdasu = t_acsnh_advnh - 7000; + dev_t.t_ce_avd = 1000; + dev_t.t_avdp_r = t_acsnh_advnh; + dev_t.t_oeasu = t_acsnh_advnh + 1000; + dev_t.t_oe = 300; + dev_t.t_cez_r = 7000; + dev_t.t_cez_w = dev_t.t_cez_r; + dev_t.t_avdp_w = t_acsnh_advnh; + dev_t.t_weasu = t_acsnh_advnh + 1000; + dev_t.t_wpl = 300; + dev_t.cyc_aavdh_we = 1; + + gpmc_calc_timings(&t, &tusb_async, &dev_t); + + return gpmc_cs_set_timings(async_cs, &t, &tusb_async); +} + +static int tusb_set_sync_mode(unsigned sysclk_ps) +{ + struct gpmc_device_timings dev_t; + struct gpmc_timings t; + unsigned t_scsnh_advnh = sysclk_ps + 3000; + + memset(&dev_t, 0, sizeof(dev_t)); + + dev_t.clk = 11100; + dev_t.t_bacc = 1000; + dev_t.t_ces = 1000; + dev_t.t_ceasu = 8 * 1000; + dev_t.t_avdasu = t_scsnh_advnh - 7000; + dev_t.t_ce_avd = 1000; + dev_t.t_avdp_r = t_scsnh_advnh; + dev_t.cyc_aavdh_oe = 3; + dev_t.cyc_oe = 5; + dev_t.t_ce_rdyz = 7000; + dev_t.t_avdp_w = t_scsnh_advnh; + dev_t.cyc_aavdh_we = 3; + dev_t.cyc_wpl = 6; + + gpmc_calc_timings(&t, &tusb_sync, &dev_t); + + return gpmc_cs_set_timings(sync_cs, &t, &tusb_sync); +} + +/* tusb driver calls this when it changes the chip's clocking */ +static int tusb6010_platform_retime(unsigned is_refclk) +{ + static const char error[] = + KERN_ERR "tusb6010 %s retime error %d\n"; + + unsigned sysclk_ps; + int status; + + if (!refclk_psec) + return -ENODEV; + + sysclk_ps = is_refclk ? refclk_psec : TUSB6010_OSCCLK_60; + + status = tusb_set_async_mode(sysclk_ps); + if (status < 0) { + printk(error, "async", status); + goto done; + } + status = tusb_set_sync_mode(sysclk_ps); + if (status < 0) + printk(error, "sync", status); +done: + return status; +} + +static struct resource tusb_resources[] = { + /* Order is significant! The start/end fields + * are updated during setup.. + */ + { /* Asynchronous access */ + .flags = IORESOURCE_MEM, + }, + { /* Synchronous access */ + .flags = IORESOURCE_MEM, + }, +}; + +static u64 tusb_dmamask = ~(u32)0; + +static struct platform_device tusb_device = { + .name = "musb-tusb", + .id = -1, + .dev = { + .dma_mask = &tusb_dmamask, + .coherent_dma_mask = 0xffffffff, + }, + .num_resources = ARRAY_SIZE(tusb_resources), + .resource = tusb_resources, +}; + + +/* this may be called only from board-*.c setup code */ +int __init tusb6010_setup_interface(struct musb_hdrc_platform_data *data, + unsigned int ps_refclk, unsigned int waitpin, + unsigned int async, unsigned int sync, + unsigned int dmachan) +{ + int status; + static char error[] __initdata = + KERN_ERR "tusb6010 init error %d, %d\n"; + + /* ASYNC region, primarily for PIO */ + status = gpmc_cs_request(async, SZ_16M, (unsigned long *) + &tusb_resources[0].start); + if (status < 0) { + printk(error, 1, status); + return status; + } + tusb_resources[0].end = tusb_resources[0].start + 0x9ff; + tusb_async.wait_pin = waitpin; + async_cs = async; + + status = gpmc_cs_program_settings(async_cs, &tusb_async); + if (status < 0) + return status; + + /* SYNC region, primarily for DMA */ + status = gpmc_cs_request(sync, SZ_16M, (unsigned long *) + &tusb_resources[1].start); + if (status < 0) { + printk(error, 2, status); + return status; + } + tusb_resources[1].end = tusb_resources[1].start + 0x9ff; + tusb_sync.wait_pin = waitpin; + sync_cs = sync; + + status = gpmc_cs_program_settings(sync_cs, &tusb_sync); + if (status < 0) + return status; + + /* set up memory timings ... can speed them up later */ + if (!ps_refclk) { + printk(error, 4, status); + return -ENODEV; + } + refclk_psec = ps_refclk; + status = tusb6010_platform_retime(1); + if (status < 0) { + printk(error, 5, status); + return status; + } + + /* finish device setup ... */ + if (!data) { + printk(error, 6, status); + return -ENODEV; + } + tusb_device.dev.platform_data = data; + + /* so far so good ... register the device */ + status = platform_device_register(&tusb_device); + if (status < 0) { + printk(error, 7, status); + return status; + } + return 0; +} diff --git a/arch/arm/mach-omap2/usb-tusb6010.h b/arch/arm/mach-omap2/usb-tusb6010.h new file mode 100644 index 000000000..d210ff623 --- /dev/null +++ b/arch/arm/mach-omap2/usb-tusb6010.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __USB_TUSB6010_H +#define __USB_TUSB6010_H + +extern int __init tusb6010_setup_interface( + struct musb_hdrc_platform_data *data, + unsigned int ps_refclk, unsigned int waitpin, + unsigned int async_cs, unsigned int sync_cs, + unsigned int dmachan); + +#endif /* __USB_TUSB6010_H */ diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c new file mode 100644 index 000000000..fc26b96a2 --- /dev/null +++ b/arch/arm/mach-omap2/vc.c @@ -0,0 +1,879 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP Voltage Controller (VC) interface + * + * Copyright (C) 2011 Texas Instruments, Inc. + */ +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/bug.h> +#include <linux/io.h> + +#include <asm/div64.h> + +#include "iomap.h" +#include "soc.h" +#include "voltage.h" +#include "vc.h" +#include "prm-regbits-34xx.h" +#include "prm-regbits-44xx.h" +#include "prm44xx.h" +#include "pm.h" +#include "scrm44xx.h" +#include "control.h" + +#define OMAP4430_VDD_IVA_I2C_DISABLE BIT(14) +#define OMAP4430_VDD_MPU_I2C_DISABLE BIT(13) +#define OMAP4430_VDD_CORE_I2C_DISABLE BIT(12) +#define OMAP4430_VDD_IVA_PRESENCE BIT(9) +#define OMAP4430_VDD_MPU_PRESENCE BIT(8) +#define OMAP4430_AUTO_CTRL_VDD_IVA(x) ((x) << 4) +#define OMAP4430_AUTO_CTRL_VDD_MPU(x) ((x) << 2) +#define OMAP4430_AUTO_CTRL_VDD_CORE(x) ((x) << 0) +#define OMAP4430_AUTO_CTRL_VDD_RET 2 + +#define OMAP4430_VDD_I2C_DISABLE_MASK \ + (OMAP4430_VDD_IVA_I2C_DISABLE | \ + OMAP4430_VDD_MPU_I2C_DISABLE | \ + OMAP4430_VDD_CORE_I2C_DISABLE) + +#define OMAP4_VDD_DEFAULT_VAL \ + (OMAP4430_VDD_I2C_DISABLE_MASK | \ + OMAP4430_VDD_IVA_PRESENCE | OMAP4430_VDD_MPU_PRESENCE | \ + OMAP4430_AUTO_CTRL_VDD_IVA(OMAP4430_AUTO_CTRL_VDD_RET) | \ + OMAP4430_AUTO_CTRL_VDD_MPU(OMAP4430_AUTO_CTRL_VDD_RET) | \ + OMAP4430_AUTO_CTRL_VDD_CORE(OMAP4430_AUTO_CTRL_VDD_RET)) + +#define OMAP4_VDD_RET_VAL \ + (OMAP4_VDD_DEFAULT_VAL & ~OMAP4430_VDD_I2C_DISABLE_MASK) + +/** + * struct omap_vc_channel_cfg - describe the cfg_channel bitfield + * @sa: bit for slave address + * @rav: bit for voltage configuration register + * @rac: bit for command configuration register + * @racen: enable bit for RAC + * @cmd: bit for command value set selection + * + * Channel configuration bits, common for OMAP3+ + * OMAP3 register: PRM_VC_CH_CONF + * OMAP4 register: PRM_VC_CFG_CHANNEL + * OMAP5 register: PRM_VC_SMPS_<voltdm>_CONFIG + */ +struct omap_vc_channel_cfg { + u8 sa; + u8 rav; + u8 rac; + u8 racen; + u8 cmd; +}; + +static struct omap_vc_channel_cfg vc_default_channel_cfg = { + .sa = BIT(0), + .rav = BIT(1), + .rac = BIT(2), + .racen = BIT(3), + .cmd = BIT(4), +}; + +/* + * On OMAP3+, all VC channels have the above default bitfield + * configuration, except the OMAP4 MPU channel. This appears + * to be a freak accident as every other VC channel has the + * default configuration, thus creating a mutant channel config. + */ +static struct omap_vc_channel_cfg vc_mutant_channel_cfg = { + .sa = BIT(0), + .rav = BIT(2), + .rac = BIT(3), + .racen = BIT(4), + .cmd = BIT(1), +}; + +static struct omap_vc_channel_cfg *vc_cfg_bits; + +/* Default I2C trace length on pcb, 6.3cm. Used for capacitance calculations. */ +static u32 sr_i2c_pcb_length = 63; +#define CFG_CHANNEL_MASK 0x1f + +/** + * omap_vc_config_channel - configure VC channel to PMIC mappings + * @voltdm: pointer to voltagdomain defining the desired VC channel + * + * Configures the VC channel to PMIC mappings for the following + * PMIC settings + * - i2c slave address (SA) + * - voltage configuration address (RAV) + * - command configuration address (RAC) and enable bit (RACEN) + * - command values for ON, ONLP, RET and OFF (CMD) + * + * This function currently only allows flexible configuration of the + * non-default channel. Starting with OMAP4, there are more than 2 + * channels, with one defined as the default (on OMAP4, it's MPU.) + * Only the non-default channel can be configured. + */ +static int omap_vc_config_channel(struct voltagedomain *voltdm) +{ + struct omap_vc_channel *vc = voltdm->vc; + + /* + * For default channel, the only configurable bit is RACEN. + * All others must stay at zero (see function comment above.) + */ + if (vc->flags & OMAP_VC_CHANNEL_DEFAULT) + vc->cfg_channel &= vc_cfg_bits->racen; + + voltdm->rmw(CFG_CHANNEL_MASK << vc->cfg_channel_sa_shift, + vc->cfg_channel << vc->cfg_channel_sa_shift, + vc->cfg_channel_reg); + + return 0; +} + +/* Voltage scale and accessory APIs */ +int omap_vc_pre_scale(struct voltagedomain *voltdm, + unsigned long target_volt, + u8 *target_vsel, u8 *current_vsel) +{ + struct omap_vc_channel *vc = voltdm->vc; + u32 vc_cmdval; + + /* Check if sufficient pmic info is available for this vdd */ + if (!voltdm->pmic) { + pr_err("%s: Insufficient pmic info to scale the vdd_%s\n", + __func__, voltdm->name); + return -EINVAL; + } + + if (!voltdm->pmic->uv_to_vsel) { + pr_err("%s: PMIC function to convert voltage in uV to vsel not registered. Hence unable to scale voltage for vdd_%s\n", + __func__, voltdm->name); + return -ENODATA; + } + + if (!voltdm->read || !voltdm->write) { + pr_err("%s: No read/write API for accessing vdd_%s regs\n", + __func__, voltdm->name); + return -EINVAL; + } + + *target_vsel = voltdm->pmic->uv_to_vsel(target_volt); + *current_vsel = voltdm->pmic->uv_to_vsel(voltdm->nominal_volt); + + /* Setting the ON voltage to the new target voltage */ + vc_cmdval = voltdm->read(vc->cmdval_reg); + vc_cmdval &= ~vc->common->cmd_on_mask; + vc_cmdval |= (*target_vsel << vc->common->cmd_on_shift); + voltdm->write(vc_cmdval, vc->cmdval_reg); + + voltdm->vc_param->on = target_volt; + + omap_vp_update_errorgain(voltdm, target_volt); + + return 0; +} + +void omap_vc_post_scale(struct voltagedomain *voltdm, + unsigned long target_volt, + u8 target_vsel, u8 current_vsel) +{ + u32 smps_steps = 0, smps_delay = 0; + + smps_steps = abs(target_vsel - current_vsel); + /* SMPS slew rate / step size. 2us added as buffer. */ + smps_delay = ((smps_steps * voltdm->pmic->step_size) / + voltdm->pmic->slew_rate) + 2; + udelay(smps_delay); +} + +/* vc_bypass_scale - VC bypass method of voltage scaling */ +int omap_vc_bypass_scale(struct voltagedomain *voltdm, + unsigned long target_volt) +{ + struct omap_vc_channel *vc = voltdm->vc; + u32 loop_cnt = 0, retries_cnt = 0; + u32 vc_valid, vc_bypass_val_reg, vc_bypass_value; + u8 target_vsel, current_vsel; + int ret; + + ret = omap_vc_pre_scale(voltdm, target_volt, &target_vsel, ¤t_vsel); + if (ret) + return ret; + + vc_valid = vc->common->valid; + vc_bypass_val_reg = vc->common->bypass_val_reg; + vc_bypass_value = (target_vsel << vc->common->data_shift) | + (vc->volt_reg_addr << vc->common->regaddr_shift) | + (vc->i2c_slave_addr << vc->common->slaveaddr_shift); + + voltdm->write(vc_bypass_value, vc_bypass_val_reg); + voltdm->write(vc_bypass_value | vc_valid, vc_bypass_val_reg); + + vc_bypass_value = voltdm->read(vc_bypass_val_reg); + /* + * Loop till the bypass command is acknowledged from the SMPS. + * NOTE: This is legacy code. The loop count and retry count needs + * to be revisited. + */ + while (!(vc_bypass_value & vc_valid)) { + loop_cnt++; + + if (retries_cnt > 10) { + pr_warn("%s: Retry count exceeded\n", __func__); + return -ETIMEDOUT; + } + + if (loop_cnt > 50) { + retries_cnt++; + loop_cnt = 0; + udelay(10); + } + vc_bypass_value = voltdm->read(vc_bypass_val_reg); + } + + omap_vc_post_scale(voltdm, target_volt, target_vsel, current_vsel); + return 0; +} + +/* Convert microsecond value to number of 32kHz clock cycles */ +static inline u32 omap_usec_to_32k(u32 usec) +{ + return DIV_ROUND_UP_ULL(32768ULL * (u64)usec, 1000000ULL); +} + +struct omap3_vc_timings { + u32 voltsetup1; + u32 voltsetup2; +}; + +struct omap3_vc { + struct voltagedomain *vd; + u32 voltctrl; + u32 voltsetup1; + u32 voltsetup2; + struct omap3_vc_timings timings[2]; +}; +static struct omap3_vc vc; + +void omap3_vc_set_pmic_signaling(int core_next_state) +{ + struct voltagedomain *vd = vc.vd; + struct omap3_vc_timings *c = vc.timings; + u32 voltctrl, voltsetup1, voltsetup2; + + voltctrl = vc.voltctrl; + voltsetup1 = vc.voltsetup1; + voltsetup2 = vc.voltsetup2; + + switch (core_next_state) { + case PWRDM_POWER_OFF: + voltctrl &= ~(OMAP3430_PRM_VOLTCTRL_AUTO_RET | + OMAP3430_PRM_VOLTCTRL_AUTO_SLEEP); + voltctrl |= OMAP3430_PRM_VOLTCTRL_AUTO_OFF; + if (voltctrl & OMAP3430_PRM_VOLTCTRL_SEL_OFF) + voltsetup2 = c->voltsetup2; + else + voltsetup1 = c->voltsetup1; + break; + case PWRDM_POWER_RET: + default: + c++; + voltctrl &= ~(OMAP3430_PRM_VOLTCTRL_AUTO_OFF | + OMAP3430_PRM_VOLTCTRL_AUTO_SLEEP); + voltctrl |= OMAP3430_PRM_VOLTCTRL_AUTO_RET; + voltsetup1 = c->voltsetup1; + break; + } + + if (voltctrl != vc.voltctrl) { + vd->write(voltctrl, OMAP3_PRM_VOLTCTRL_OFFSET); + vc.voltctrl = voltctrl; + } + if (voltsetup1 != vc.voltsetup1) { + vd->write(c->voltsetup1, + OMAP3_PRM_VOLTSETUP1_OFFSET); + vc.voltsetup1 = voltsetup1; + } + if (voltsetup2 != vc.voltsetup2) { + vd->write(c->voltsetup2, + OMAP3_PRM_VOLTSETUP2_OFFSET); + vc.voltsetup2 = voltsetup2; + } +} + +void omap4_vc_set_pmic_signaling(int core_next_state) +{ + struct voltagedomain *vd = vc.vd; + u32 val; + + if (!vd) + return; + + switch (core_next_state) { + case PWRDM_POWER_RET: + val = OMAP4_VDD_RET_VAL; + break; + default: + val = OMAP4_VDD_DEFAULT_VAL; + break; + } + + vd->write(val, OMAP4_PRM_VOLTCTRL_OFFSET); +} + +/* + * Configure signal polarity for sys_clkreq and sys_off_mode pins + * as the default values are wrong and can cause the system to hang + * if any twl4030 scripts are loaded. + */ +static void __init omap3_vc_init_pmic_signaling(struct voltagedomain *voltdm) +{ + u32 val; + + if (vc.vd) + return; + + vc.vd = voltdm; + + val = voltdm->read(OMAP3_PRM_POLCTRL_OFFSET); + if (!(val & OMAP3430_PRM_POLCTRL_CLKREQ_POL) || + (val & OMAP3430_PRM_POLCTRL_OFFMODE_POL)) { + val |= OMAP3430_PRM_POLCTRL_CLKREQ_POL; + val &= ~OMAP3430_PRM_POLCTRL_OFFMODE_POL; + pr_debug("PM: fixing sys_clkreq and sys_off_mode polarity to 0x%x\n", + val); + voltdm->write(val, OMAP3_PRM_POLCTRL_OFFSET); + } + + /* + * By default let's use I2C4 signaling for retention idle + * and sys_off_mode pin signaling for off idle. This way we + * have sys_clk_req pin go down for retention and both + * sys_clk_req and sys_off_mode pins will go down for off + * idle. And we can also scale voltages to zero for off-idle. + * Note that no actual voltage scaling during off-idle will + * happen unless the board specific twl4030 PMIC scripts are + * loaded. See also omap_vc_i2c_init for comments regarding + * erratum i531. + */ + val = voltdm->read(OMAP3_PRM_VOLTCTRL_OFFSET); + if (!(val & OMAP3430_PRM_VOLTCTRL_SEL_OFF)) { + val |= OMAP3430_PRM_VOLTCTRL_SEL_OFF; + pr_debug("PM: setting voltctrl sys_off_mode signaling to 0x%x\n", + val); + voltdm->write(val, OMAP3_PRM_VOLTCTRL_OFFSET); + } + vc.voltctrl = val; + + omap3_vc_set_pmic_signaling(PWRDM_POWER_ON); +} + +static void omap3_init_voltsetup1(struct voltagedomain *voltdm, + struct omap3_vc_timings *c, u32 idle) +{ + unsigned long val; + + val = (voltdm->vc_param->on - idle) / voltdm->pmic->slew_rate; + val *= voltdm->sys_clk.rate / 8 / 1000000 + 1; + val <<= __ffs(voltdm->vfsm->voltsetup_mask); + c->voltsetup1 &= ~voltdm->vfsm->voltsetup_mask; + c->voltsetup1 |= val; +} + +/** + * omap3_set_i2c_timings - sets i2c sleep timings for a channel + * @voltdm: channel to configure + * @off_mode: select whether retention or off mode values used + * + * Calculates and sets up voltage controller to use I2C based + * voltage scaling for sleep modes. This can be used for either off mode + * or retention. Off mode has additionally an option to use sys_off_mode + * pad, which uses a global signal to program the whole power IC to + * off-mode. + * + * Note that pmic is not controlling the voltage scaling during + * retention signaled over I2C4, so we can keep voltsetup2 as 0. + * And the oscillator is not shut off over I2C4, so no need to + * set clksetup. + */ +static void omap3_set_i2c_timings(struct voltagedomain *voltdm) +{ + struct omap3_vc_timings *c = vc.timings; + + /* Configure PRWDM_POWER_OFF over I2C4 */ + omap3_init_voltsetup1(voltdm, c, voltdm->vc_param->off); + c++; + /* Configure PRWDM_POWER_RET over I2C4 */ + omap3_init_voltsetup1(voltdm, c, voltdm->vc_param->ret); +} + +/** + * omap3_set_off_timings - sets off-mode timings for a channel + * @voltdm: channel to configure + * + * Calculates and sets up off-mode timings for a channel. Off-mode + * can use either I2C based voltage scaling, or alternatively + * sys_off_mode pad can be used to send a global command to power IC.n, + * sys_off_mode has the additional benefit that voltages can be + * scaled to zero volt level with TWL4030 / TWL5030, I2C can only + * scale to 600mV. + * + * Note that omap is not controlling the voltage scaling during + * off idle signaled by sys_off_mode, so we can keep voltsetup1 + * as 0. + */ +static void omap3_set_off_timings(struct voltagedomain *voltdm) +{ + struct omap3_vc_timings *c = vc.timings; + u32 tstart, tshut, clksetup, voltoffset; + + if (c->voltsetup2) + return; + + omap_pm_get_oscillator(&tstart, &tshut); + if (tstart == ULONG_MAX) { + pr_debug("PM: oscillator start-up time not initialized, using 10ms\n"); + clksetup = omap_usec_to_32k(10000); + } else { + clksetup = omap_usec_to_32k(tstart); + } + + /* + * For twl4030 errata 27, we need to allow minimum ~488.32 us wait to + * switch from HFCLKIN to internal oscillator. That means timings + * have voltoffset fixed to 0xa in rounded up 32 KiHz cycles. And + * that means we can calculate the value based on the oscillator + * start-up time since voltoffset2 = clksetup - voltoffset. + */ + voltoffset = omap_usec_to_32k(488); + c->voltsetup2 = clksetup - voltoffset; + voltdm->write(clksetup, OMAP3_PRM_CLKSETUP_OFFSET); + voltdm->write(voltoffset, OMAP3_PRM_VOLTOFFSET_OFFSET); +} + +static void __init omap3_vc_init_channel(struct voltagedomain *voltdm) +{ + omap3_vc_init_pmic_signaling(voltdm); + omap3_set_off_timings(voltdm); + omap3_set_i2c_timings(voltdm); +} + +/** + * omap4_calc_volt_ramp - calculates voltage ramping delays on omap4 + * @voltdm: channel to calculate values for + * @voltage_diff: voltage difference in microvolts + * + * Calculates voltage ramp prescaler + counter values for a voltage + * difference on omap4. Returns a field value suitable for writing to + * VOLTSETUP register for a channel in following format: + * bits[8:9] prescaler ... bits[0:5] counter. See OMAP4 TRM for reference. + */ +static u32 omap4_calc_volt_ramp(struct voltagedomain *voltdm, u32 voltage_diff) +{ + u32 prescaler; + u32 cycles; + u32 time; + + time = voltage_diff / voltdm->pmic->slew_rate; + + cycles = voltdm->sys_clk.rate / 1000 * time / 1000; + + cycles /= 64; + prescaler = 0; + + /* shift to next prescaler until no overflow */ + + /* scale for div 256 = 64 * 4 */ + if (cycles > 63) { + cycles /= 4; + prescaler++; + } + + /* scale for div 512 = 256 * 2 */ + if (cycles > 63) { + cycles /= 2; + prescaler++; + } + + /* scale for div 2048 = 512 * 4 */ + if (cycles > 63) { + cycles /= 4; + prescaler++; + } + + /* check for overflow => invalid ramp time */ + if (cycles > 63) { + pr_warn("%s: invalid setuptime for vdd_%s\n", __func__, + voltdm->name); + return 0; + } + + cycles++; + + return (prescaler << OMAP4430_RAMP_UP_PRESCAL_SHIFT) | + (cycles << OMAP4430_RAMP_UP_COUNT_SHIFT); +} + +/** + * omap4_usec_to_val_scrm - convert microsecond value to SCRM module bitfield + * @usec: microseconds + * @shift: number of bits to shift left + * @mask: bitfield mask + * + * Converts microsecond value to OMAP4 SCRM bitfield. Bitfield is + * shifted to requested position, and checked agains the mask value. + * If larger, forced to the max value of the field (i.e. the mask itself.) + * Returns the SCRM bitfield value. + */ +static u32 omap4_usec_to_val_scrm(u32 usec, int shift, u32 mask) +{ + u32 val; + + val = omap_usec_to_32k(usec) << shift; + + /* Check for overflow, if yes, force to max value */ + if (val > mask) + val = mask; + + return val; +} + +/** + * omap4_set_timings - set voltage ramp timings for a channel + * @voltdm: channel to configure + * @off_mode: whether off-mode values are used + * + * Calculates and sets the voltage ramp up / down values for a channel. + */ +static void omap4_set_timings(struct voltagedomain *voltdm, bool off_mode) +{ + u32 val; + u32 ramp; + int offset; + u32 tstart, tshut; + + if (off_mode) { + ramp = omap4_calc_volt_ramp(voltdm, + voltdm->vc_param->on - voltdm->vc_param->off); + offset = voltdm->vfsm->voltsetup_off_reg; + } else { + ramp = omap4_calc_volt_ramp(voltdm, + voltdm->vc_param->on - voltdm->vc_param->ret); + offset = voltdm->vfsm->voltsetup_reg; + } + + if (!ramp) + return; + + val = voltdm->read(offset); + + val |= ramp << OMAP4430_RAMP_DOWN_COUNT_SHIFT; + + val |= ramp << OMAP4430_RAMP_UP_COUNT_SHIFT; + + voltdm->write(val, offset); + + omap_pm_get_oscillator(&tstart, &tshut); + + val = omap4_usec_to_val_scrm(tstart, OMAP4_SETUPTIME_SHIFT, + OMAP4_SETUPTIME_MASK); + val |= omap4_usec_to_val_scrm(tshut, OMAP4_DOWNTIME_SHIFT, + OMAP4_DOWNTIME_MASK); + + writel_relaxed(val, OMAP4_SCRM_CLKSETUPTIME); +} + +static void __init omap4_vc_init_pmic_signaling(struct voltagedomain *voltdm) +{ + if (vc.vd) + return; + + vc.vd = voltdm; + voltdm->write(OMAP4_VDD_DEFAULT_VAL, OMAP4_PRM_VOLTCTRL_OFFSET); +} + +/* OMAP4 specific voltage init functions */ +static void __init omap4_vc_init_channel(struct voltagedomain *voltdm) +{ + omap4_vc_init_pmic_signaling(voltdm); + omap4_set_timings(voltdm, true); + omap4_set_timings(voltdm, false); +} + +struct i2c_init_data { + u8 loadbits; + u8 load; + u8 hsscll_38_4; + u8 hsscll_26; + u8 hsscll_19_2; + u8 hsscll_16_8; + u8 hsscll_12; +}; + +static const struct i2c_init_data omap4_i2c_timing_data[] __initconst = { + { + .load = 50, + .loadbits = 0x3, + .hsscll_38_4 = 13, + .hsscll_26 = 11, + .hsscll_19_2 = 9, + .hsscll_16_8 = 9, + .hsscll_12 = 8, + }, + { + .load = 25, + .loadbits = 0x2, + .hsscll_38_4 = 13, + .hsscll_26 = 11, + .hsscll_19_2 = 9, + .hsscll_16_8 = 9, + .hsscll_12 = 8, + }, + { + .load = 12, + .loadbits = 0x1, + .hsscll_38_4 = 11, + .hsscll_26 = 10, + .hsscll_19_2 = 9, + .hsscll_16_8 = 9, + .hsscll_12 = 8, + }, + { + .load = 0, + .loadbits = 0x0, + .hsscll_38_4 = 12, + .hsscll_26 = 10, + .hsscll_19_2 = 9, + .hsscll_16_8 = 8, + .hsscll_12 = 8, + }, +}; + +/** + * omap4_vc_i2c_timing_init - sets up board I2C timing parameters + * @voltdm: voltagedomain pointer to get data from + * + * Use PMIC + board supplied settings for calculating the total I2C + * channel capacitance and set the timing parameters based on this. + * Pre-calculated values are provided in data tables, as it is not + * too straightforward to calculate these runtime. + */ +static void __init omap4_vc_i2c_timing_init(struct voltagedomain *voltdm) +{ + u32 capacitance; + u32 val; + u16 hsscll; + const struct i2c_init_data *i2c_data; + + if (!voltdm->pmic->i2c_high_speed) { + pr_info("%s: using bootloader low-speed timings\n", __func__); + return; + } + + /* PCB trace capacitance, 0.125pF / mm => mm / 8 */ + capacitance = DIV_ROUND_UP(sr_i2c_pcb_length, 8); + + /* OMAP pad capacitance */ + capacitance += 4; + + /* PMIC pad capacitance */ + capacitance += voltdm->pmic->i2c_pad_load; + + /* Search for capacitance match in the table */ + i2c_data = omap4_i2c_timing_data; + + while (i2c_data->load > capacitance) + i2c_data++; + + /* Select proper values based on sysclk frequency */ + switch (voltdm->sys_clk.rate) { + case 38400000: + hsscll = i2c_data->hsscll_38_4; + break; + case 26000000: + hsscll = i2c_data->hsscll_26; + break; + case 19200000: + hsscll = i2c_data->hsscll_19_2; + break; + case 16800000: + hsscll = i2c_data->hsscll_16_8; + break; + case 12000000: + hsscll = i2c_data->hsscll_12; + break; + default: + pr_warn("%s: unsupported sysclk rate: %d!\n", __func__, + voltdm->sys_clk.rate); + return; + } + + /* Loadbits define pull setup for the I2C channels */ + val = i2c_data->loadbits << 25 | i2c_data->loadbits << 29; + + /* Write to SYSCTRL_PADCONF_WKUP_CTRL_I2C_2 to setup I2C pull */ + writel_relaxed(val, OMAP2_L4_IO_ADDRESS(OMAP4_CTRL_MODULE_PAD_WKUP + + OMAP4_CTRL_MODULE_PAD_WKUP_CONTROL_I2C_2)); + + /* HSSCLH can always be zero */ + val = hsscll << OMAP4430_HSSCLL_SHIFT; + val |= (0x28 << OMAP4430_SCLL_SHIFT | 0x2c << OMAP4430_SCLH_SHIFT); + + /* Write setup times to I2C config register */ + voltdm->write(val, OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET); +} + + + +/** + * omap_vc_i2c_init - initialize I2C interface to PMIC + * @voltdm: voltage domain containing VC data + * + * Use PMIC supplied settings for I2C high-speed mode and + * master code (if set) and program the VC I2C configuration + * register. + * + * The VC I2C configuration is common to all VC channels, + * so this function only configures I2C for the first VC + * channel registers. All other VC channels will use the + * same configuration. + */ +static void __init omap_vc_i2c_init(struct voltagedomain *voltdm) +{ + struct omap_vc_channel *vc = voltdm->vc; + static bool initialized; + static bool i2c_high_speed; + u8 mcode; + + if (initialized) { + if (voltdm->pmic->i2c_high_speed != i2c_high_speed) + pr_warn("%s: I2C config for vdd_%s does not match other channels (%u).\n", + __func__, voltdm->name, i2c_high_speed); + return; + } + + /* + * Note that for omap3 OMAP3430_SREN_MASK clears SREN to work around + * erratum i531 "Extra Power Consumed When Repeated Start Operation + * Mode Is Enabled on I2C Interface Dedicated for Smart Reflex (I2C4)". + * Otherwise I2C4 eventually leads into about 23mW extra power being + * consumed even during off idle using VMODE. + */ + i2c_high_speed = voltdm->pmic->i2c_high_speed; + if (i2c_high_speed) + voltdm->rmw(vc->common->i2c_cfg_clear_mask, + vc->common->i2c_cfg_hsen_mask, + vc->common->i2c_cfg_reg); + + mcode = voltdm->pmic->i2c_mcode; + if (mcode) + voltdm->rmw(vc->common->i2c_mcode_mask, + mcode << __ffs(vc->common->i2c_mcode_mask), + vc->common->i2c_cfg_reg); + + if (cpu_is_omap44xx()) + omap4_vc_i2c_timing_init(voltdm); + + initialized = true; +} + +/** + * omap_vc_calc_vsel - calculate vsel value for a channel + * @voltdm: channel to calculate value for + * @uvolt: microvolt value to convert to vsel + * + * Converts a microvolt value to vsel value for the used PMIC. + * This checks whether the microvolt value is out of bounds, and + * adjusts the value accordingly. If unsupported value detected, + * warning is thrown. + */ +static u8 omap_vc_calc_vsel(struct voltagedomain *voltdm, u32 uvolt) +{ + if (voltdm->pmic->vddmin > uvolt) + uvolt = voltdm->pmic->vddmin; + if (voltdm->pmic->vddmax < uvolt) { + WARN(1, "%s: voltage not supported by pmic: %u vs max %u\n", + __func__, uvolt, voltdm->pmic->vddmax); + /* Lets try maximum value anyway */ + uvolt = voltdm->pmic->vddmax; + } + + return voltdm->pmic->uv_to_vsel(uvolt); +} + +void __init omap_vc_init_channel(struct voltagedomain *voltdm) +{ + struct omap_vc_channel *vc = voltdm->vc; + u8 on_vsel, onlp_vsel, ret_vsel, off_vsel; + u32 val; + + if (!voltdm->pmic || !voltdm->pmic->uv_to_vsel) { + pr_err("%s: No PMIC info for vdd_%s\n", __func__, voltdm->name); + return; + } + + if (!voltdm->read || !voltdm->write) { + pr_err("%s: No read/write API for accessing vdd_%s regs\n", + __func__, voltdm->name); + return; + } + + vc->cfg_channel = 0; + if (vc->flags & OMAP_VC_CHANNEL_CFG_MUTANT) + vc_cfg_bits = &vc_mutant_channel_cfg; + else + vc_cfg_bits = &vc_default_channel_cfg; + + /* get PMIC/board specific settings */ + vc->i2c_slave_addr = voltdm->pmic->i2c_slave_addr; + vc->volt_reg_addr = voltdm->pmic->volt_reg_addr; + vc->cmd_reg_addr = voltdm->pmic->cmd_reg_addr; + + /* Configure the i2c slave address for this VC */ + voltdm->rmw(vc->smps_sa_mask, + vc->i2c_slave_addr << __ffs(vc->smps_sa_mask), + vc->smps_sa_reg); + vc->cfg_channel |= vc_cfg_bits->sa; + + /* + * Configure the PMIC register addresses. + */ + voltdm->rmw(vc->smps_volra_mask, + vc->volt_reg_addr << __ffs(vc->smps_volra_mask), + vc->smps_volra_reg); + vc->cfg_channel |= vc_cfg_bits->rav; + + if (vc->cmd_reg_addr) { + voltdm->rmw(vc->smps_cmdra_mask, + vc->cmd_reg_addr << __ffs(vc->smps_cmdra_mask), + vc->smps_cmdra_reg); + vc->cfg_channel |= vc_cfg_bits->rac; + } + + if (vc->cmd_reg_addr == vc->volt_reg_addr) + vc->cfg_channel |= vc_cfg_bits->racen; + + /* Set up the on, inactive, retention and off voltage */ + on_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->on); + onlp_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->onlp); + ret_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->ret); + off_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->off); + + val = ((on_vsel << vc->common->cmd_on_shift) | + (onlp_vsel << vc->common->cmd_onlp_shift) | + (ret_vsel << vc->common->cmd_ret_shift) | + (off_vsel << vc->common->cmd_off_shift)); + voltdm->write(val, vc->cmdval_reg); + vc->cfg_channel |= vc_cfg_bits->cmd; + + /* Channel configuration */ + omap_vc_config_channel(voltdm); + + omap_vc_i2c_init(voltdm); + + if (cpu_is_omap34xx()) + omap3_vc_init_channel(voltdm); + else if (cpu_is_omap44xx()) + omap4_vc_init_channel(voltdm); +} diff --git a/arch/arm/mach-omap2/vc.h b/arch/arm/mach-omap2/vc.h new file mode 100644 index 000000000..9e861dbc2 --- /dev/null +++ b/arch/arm/mach-omap2/vc.h @@ -0,0 +1,133 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP3/4 Voltage Controller (VC) structure and macro definitions + * + * Copyright (C) 2007, 2010 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + */ +#ifndef __ARCH_ARM_MACH_OMAP2_VC_H +#define __ARCH_ARM_MACH_OMAP2_VC_H + +#include <linux/kernel.h> + +struct voltagedomain; + +/** + * struct omap_vc_common - per-VC register/bitfield data + * @cmd_on_mask: ON bitmask in PRM_VC_CMD_VAL* register + * @valid: VALID bitmask in PRM_VC_BYPASS_VAL register + * @bypass_val_reg: Offset of PRM_VC_BYPASS_VAL reg from PRM start + * @data_shift: DATA field shift in PRM_VC_BYPASS_VAL register + * @slaveaddr_shift: SLAVEADDR field shift in PRM_VC_BYPASS_VAL register + * @regaddr_shift: REGADDR field shift in PRM_VC_BYPASS_VAL register + * @cmd_on_shift: ON field shift in PRM_VC_CMD_VAL_* register + * @cmd_onlp_shift: ONLP field shift in PRM_VC_CMD_VAL_* register + * @cmd_ret_shift: RET field shift in PRM_VC_CMD_VAL_* register + * @cmd_off_shift: OFF field shift in PRM_VC_CMD_VAL_* register + * @i2c_cfg_reg: I2C configuration register offset + * @i2c_cfg_clear_mask: high-speed mode bit clear mask in I2C config register + * @i2c_cfg_hsen_mask: high-speed mode bit field mask in I2C config register + * @i2c_mcode_mask: MCODE field mask for I2C config register + * + * XXX One of cmd_on_mask and cmd_on_shift are not needed + * XXX VALID should probably be a shift, not a mask + */ +struct omap_vc_common { + u32 cmd_on_mask; + u32 valid; + u8 bypass_val_reg; + u8 data_shift; + u8 slaveaddr_shift; + u8 regaddr_shift; + u8 cmd_on_shift; + u8 cmd_onlp_shift; + u8 cmd_ret_shift; + u8 cmd_off_shift; + u8 i2c_cfg_reg; + u8 i2c_cfg_clear_mask; + u8 i2c_cfg_hsen_mask; + u8 i2c_mcode_mask; +}; + +/* omap_vc_channel.flags values */ +#define OMAP_VC_CHANNEL_DEFAULT BIT(0) +#define OMAP_VC_CHANNEL_CFG_MUTANT BIT(1) + +/** + * struct omap_vc_channel - VC per-instance data + * @i2c_slave_addr: I2C slave address of PMIC for this VC channel + * @volt_reg_addr: voltage configuration register address + * @cmd_reg_addr: command configuration register address + * @setup_time: setup time (in sys_clk cycles) of regulator for this channel + * @cfg_channel: current value of VC channel configuration register + * @i2c_high_speed: whether or not to use I2C high-speed mode + * + * @common: pointer to VC common data for this platform + * @smps_sa_mask: i2c slave address bitmask in the PRM_VC_SMPS_SA register + * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register + * @smps_cmdra_mask: CMDRA* bitmask in the PRM_VC_CMD_RA register + * @cmdval_reg: register for on/ret/off voltage level values for this channel + * @smps_sa_reg: Offset of PRM_VC_SMPS_SA reg from PRM start + * @smps_volra_reg: Offset of PRM_VC_SMPS_VOL_RA reg from PRM start + * @smps_cmdra_reg: Offset of PRM_VC_SMPS_CMD_RA reg from PRM start + * @cfg_channel_reg: VC channel configuration register + * @cfg_channel_sa_shift: bit shift for slave address cfg_channel register + * @flags: VC channel-specific flags (optional) + */ +struct omap_vc_channel { + /* channel state */ + u16 i2c_slave_addr; + u16 volt_reg_addr; + u16 cmd_reg_addr; + u8 cfg_channel; + bool i2c_high_speed; + + /* register access data */ + const struct omap_vc_common *common; + u32 smps_sa_mask; + u32 smps_volra_mask; + u32 smps_cmdra_mask; + u8 cmdval_reg; + u8 smps_sa_reg; + u8 smps_volra_reg; + u8 smps_cmdra_reg; + u8 cfg_channel_reg; + u8 cfg_channel_sa_shift; + u8 flags; +}; + +extern struct omap_vc_channel omap3_vc_mpu; +extern struct omap_vc_channel omap3_vc_core; + +extern struct omap_vc_channel omap4_vc_mpu; +extern struct omap_vc_channel omap4_vc_iva; +extern struct omap_vc_channel omap4_vc_core; + +extern struct omap_vc_param omap3_mpu_vc_data; +extern struct omap_vc_param omap3_core_vc_data; + +extern struct omap_vc_param omap4_mpu_vc_data; +extern struct omap_vc_param omap4_iva_vc_data; +extern struct omap_vc_param omap4_core_vc_data; + +void omap3_vc_set_pmic_signaling(int core_next_state); +void omap4_vc_set_pmic_signaling(int core_next_state); + +void omap_vc_init_channel(struct voltagedomain *voltdm); +int omap_vc_pre_scale(struct voltagedomain *voltdm, + unsigned long target_volt, + u8 *target_vsel, u8 *current_vsel); +void omap_vc_post_scale(struct voltagedomain *voltdm, + unsigned long target_volt, + u8 target_vsel, u8 current_vsel); +int omap_vc_bypass_scale(struct voltagedomain *voltdm, + unsigned long target_volt); + +#endif + diff --git a/arch/arm/mach-omap2/vc3xxx_data.c b/arch/arm/mach-omap2/vc3xxx_data.c new file mode 100644 index 000000000..227345081 --- /dev/null +++ b/arch/arm/mach-omap2/vc3xxx_data.c @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 Voltage Controller (VC) data + * + * Copyright (C) 2007, 2010 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + */ +#include <linux/io.h> +#include <linux/err.h> +#include <linux/init.h> + +#include "common.h" + +#include "prm-regbits-34xx.h" +#include "voltage.h" + +#include "vc.h" + +/* + * VC data common to 34xx/36xx chips + * XXX This stuff presumably belongs in the vc3xxx.c or vc.c file. + */ +static struct omap_vc_common omap3_vc_common = { + .bypass_val_reg = OMAP3_PRM_VC_BYPASS_VAL_OFFSET, + .data_shift = OMAP3430_DATA_SHIFT, + .slaveaddr_shift = OMAP3430_SLAVEADDR_SHIFT, + .regaddr_shift = OMAP3430_REGADDR_SHIFT, + .valid = OMAP3430_VALID_MASK, + .cmd_on_shift = OMAP3430_VC_CMD_ON_SHIFT, + .cmd_on_mask = OMAP3430_VC_CMD_ON_MASK, + .cmd_onlp_shift = OMAP3430_VC_CMD_ONLP_SHIFT, + .cmd_ret_shift = OMAP3430_VC_CMD_RET_SHIFT, + .cmd_off_shift = OMAP3430_VC_CMD_OFF_SHIFT, + .i2c_cfg_clear_mask = OMAP3430_SREN_MASK | OMAP3430_HSEN_MASK, + .i2c_cfg_hsen_mask = OMAP3430_HSEN_MASK, + .i2c_cfg_reg = OMAP3_PRM_VC_I2C_CFG_OFFSET, + .i2c_mcode_mask = OMAP3430_MCODE_MASK, +}; + +struct omap_vc_channel omap3_vc_mpu = { + .flags = OMAP_VC_CHANNEL_DEFAULT, + .common = &omap3_vc_common, + .smps_sa_reg = OMAP3_PRM_VC_SMPS_SA_OFFSET, + .smps_volra_reg = OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET, + .smps_cmdra_reg = OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET, + .cfg_channel_reg = OMAP3_PRM_VC_CH_CONF_OFFSET, + .cmdval_reg = OMAP3_PRM_VC_CMD_VAL_0_OFFSET, + .smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA0_MASK, + .smps_volra_mask = OMAP3430_VOLRA0_MASK, + .smps_cmdra_mask = OMAP3430_CMDRA0_MASK, + .cfg_channel_sa_shift = OMAP3430_PRM_VC_SMPS_SA_SA0_SHIFT, +}; + +struct omap_vc_channel omap3_vc_core = { + .common = &omap3_vc_common, + .smps_sa_reg = OMAP3_PRM_VC_SMPS_SA_OFFSET, + .smps_volra_reg = OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET, + .smps_cmdra_reg = OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET, + .cfg_channel_reg = OMAP3_PRM_VC_CH_CONF_OFFSET, + .cmdval_reg = OMAP3_PRM_VC_CMD_VAL_1_OFFSET, + .smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA1_MASK, + .smps_volra_mask = OMAP3430_VOLRA1_MASK, + .smps_cmdra_mask = OMAP3430_CMDRA1_MASK, + .cfg_channel_sa_shift = OMAP3430_PRM_VC_SMPS_SA_SA1_SHIFT, +}; + +/* + * Voltage levels for different operating modes: on, sleep, retention and off + */ +#define OMAP3_ON_VOLTAGE_UV 1200000 +#define OMAP3_ONLP_VOLTAGE_UV 1000000 +#define OMAP3_RET_VOLTAGE_UV 975000 +#define OMAP3_OFF_VOLTAGE_UV 600000 + +struct omap_vc_param omap3_mpu_vc_data = { + .on = OMAP3_ON_VOLTAGE_UV, + .onlp = OMAP3_ONLP_VOLTAGE_UV, + .ret = OMAP3_RET_VOLTAGE_UV, + .off = OMAP3_OFF_VOLTAGE_UV, +}; + +struct omap_vc_param omap3_core_vc_data = { + .on = OMAP3_ON_VOLTAGE_UV, + .onlp = OMAP3_ONLP_VOLTAGE_UV, + .ret = OMAP3_RET_VOLTAGE_UV, + .off = OMAP3_OFF_VOLTAGE_UV, +}; diff --git a/arch/arm/mach-omap2/vc44xx_data.c b/arch/arm/mach-omap2/vc44xx_data.c new file mode 100644 index 000000000..0c70c0815 --- /dev/null +++ b/arch/arm/mach-omap2/vc44xx_data.c @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP4 Voltage Controller (VC) data + * + * Copyright (C) 2007, 2010 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + */ +#include <linux/io.h> +#include <linux/err.h> +#include <linux/init.h> + +#include "common.h" + +#include "prm44xx.h" +#include "prm-regbits-44xx.h" +#include "voltage.h" + +#include "vc.h" + +/* + * VC data common to 44xx chips + * XXX This stuff presumably belongs in the vc3xxx.c or vc.c file. + */ +static const struct omap_vc_common omap4_vc_common = { + .bypass_val_reg = OMAP4_PRM_VC_VAL_BYPASS_OFFSET, + .data_shift = OMAP4430_DATA_SHIFT, + .slaveaddr_shift = OMAP4430_SLAVEADDR_SHIFT, + .regaddr_shift = OMAP4430_REGADDR_SHIFT, + .valid = OMAP4430_VALID_MASK, + .cmd_on_shift = OMAP4430_ON_SHIFT, + .cmd_on_mask = OMAP4430_ON_MASK, + .cmd_onlp_shift = OMAP4430_ONLP_SHIFT, + .cmd_ret_shift = OMAP4430_RET_SHIFT, + .cmd_off_shift = OMAP4430_OFF_SHIFT, + .i2c_cfg_reg = OMAP4_PRM_VC_CFG_I2C_MODE_OFFSET, + .i2c_cfg_clear_mask = OMAP4430_SRMODEEN_MASK | OMAP4430_HSMODEEN_MASK, + .i2c_cfg_hsen_mask = OMAP4430_HSMODEEN_MASK, + .i2c_mcode_mask = OMAP4430_HSMCODE_MASK, +}; + +/* VC instance data for each controllable voltage line */ +struct omap_vc_channel omap4_vc_mpu = { + .flags = OMAP_VC_CHANNEL_DEFAULT | OMAP_VC_CHANNEL_CFG_MUTANT, + .common = &omap4_vc_common, + .smps_sa_reg = OMAP4_PRM_VC_SMPS_SA_OFFSET, + .smps_volra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_VOL_OFFSET, + .smps_cmdra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_CMD_OFFSET, + .cfg_channel_reg = OMAP4_PRM_VC_CFG_CHANNEL_OFFSET, + .cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_MPU_L_OFFSET, + .smps_sa_mask = OMAP4430_SA_VDD_MPU_L_PRM_VC_SMPS_SA_MASK, + .smps_volra_mask = OMAP4430_VOLRA_VDD_MPU_L_MASK, + .smps_cmdra_mask = OMAP4430_CMDRA_VDD_MPU_L_MASK, + .cfg_channel_sa_shift = OMAP4430_SA_VDD_MPU_L_SHIFT, +}; + +struct omap_vc_channel omap4_vc_iva = { + .common = &omap4_vc_common, + .smps_sa_reg = OMAP4_PRM_VC_SMPS_SA_OFFSET, + .smps_volra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_VOL_OFFSET, + .smps_cmdra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_CMD_OFFSET, + .cfg_channel_reg = OMAP4_PRM_VC_CFG_CHANNEL_OFFSET, + .cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_IVA_L_OFFSET, + .smps_sa_mask = OMAP4430_SA_VDD_IVA_L_PRM_VC_SMPS_SA_MASK, + .smps_volra_mask = OMAP4430_VOLRA_VDD_IVA_L_MASK, + .smps_cmdra_mask = OMAP4430_CMDRA_VDD_IVA_L_MASK, + .cfg_channel_sa_shift = OMAP4430_SA_VDD_IVA_L_SHIFT, +}; + +struct omap_vc_channel omap4_vc_core = { + .common = &omap4_vc_common, + .smps_sa_reg = OMAP4_PRM_VC_SMPS_SA_OFFSET, + .smps_volra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_VOL_OFFSET, + .smps_cmdra_reg = OMAP4_PRM_VC_VAL_SMPS_RA_CMD_OFFSET, + .cfg_channel_reg = OMAP4_PRM_VC_CFG_CHANNEL_OFFSET, + .cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_CORE_L_OFFSET, + .smps_sa_mask = OMAP4430_SA_VDD_CORE_L_0_6_MASK, + .smps_volra_mask = OMAP4430_VOLRA_VDD_CORE_L_MASK, + .smps_cmdra_mask = OMAP4430_CMDRA_VDD_CORE_L_MASK, + .cfg_channel_sa_shift = OMAP4430_SA_VDD_CORE_L_SHIFT, +}; + +/* + * Voltage levels for different operating modes: on, sleep, retention and off + */ +#define OMAP4_ON_VOLTAGE_UV 1375000 +#define OMAP4_ONLP_VOLTAGE_UV 1375000 +#define OMAP4_RET_VOLTAGE_UV 837500 +#define OMAP4_OFF_VOLTAGE_UV 0 + +struct omap_vc_param omap4_mpu_vc_data = { + .on = OMAP4_ON_VOLTAGE_UV, + .onlp = OMAP4_ONLP_VOLTAGE_UV, + .ret = OMAP4_RET_VOLTAGE_UV, + .off = OMAP4_OFF_VOLTAGE_UV, +}; + +struct omap_vc_param omap4_iva_vc_data = { + .on = OMAP4_ON_VOLTAGE_UV, + .onlp = OMAP4_ONLP_VOLTAGE_UV, + .ret = OMAP4_RET_VOLTAGE_UV, + .off = OMAP4_OFF_VOLTAGE_UV, +}; + +struct omap_vc_param omap4_core_vc_data = { + .on = OMAP4_ON_VOLTAGE_UV, + .onlp = OMAP4_ONLP_VOLTAGE_UV, + .ret = OMAP4_RET_VOLTAGE_UV, + .off = OMAP4_OFF_VOLTAGE_UV, +}; diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c new file mode 100644 index 000000000..000c2bca5 --- /dev/null +++ b/arch/arm/mach-omap2/voltage.c @@ -0,0 +1,339 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3/OMAP4 Voltage Management Routines + * + * Author: Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2007 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Thara Gopinath <thara@ti.com> + */ + +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/export.h> +#include <linux/debugfs.h> +#include <linux/slab.h> +#include <linux/clk.h> + +#include "common.h" + +#include "prm-regbits-34xx.h" +#include "prm-regbits-44xx.h" +#include "prm44xx.h" +#include "prcm44xx.h" +#include "prminst44xx.h" +#include "control.h" + +#include "voltage.h" +#include "powerdomain.h" + +#include "vc.h" +#include "vp.h" + +static LIST_HEAD(voltdm_list); + +/* Public functions */ +/** + * voltdm_get_voltage() - Gets the current non-auto-compensated voltage + * @voltdm: pointer to the voltdm for which current voltage info is needed + * + * API to get the current non-auto-compensated voltage for a voltage domain. + * Returns 0 in case of error else returns the current voltage. + */ +unsigned long voltdm_get_voltage(struct voltagedomain *voltdm) +{ + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return 0; + } + + return voltdm->nominal_volt; +} + +/** + * voltdm_scale() - API to scale voltage of a particular voltage domain. + * @voltdm: pointer to the voltage domain which is to be scaled. + * @target_volt: The target voltage of the voltage domain + * + * This API should be called by the kernel to do the voltage scaling + * for a particular voltage domain during DVFS. + */ +static int voltdm_scale(struct voltagedomain *voltdm, + unsigned long target_volt) +{ + int ret, i; + unsigned long volt = 0; + + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return -EINVAL; + } + + if (!voltdm->scale) { + pr_err("%s: No voltage scale API registered for vdd_%s\n", + __func__, voltdm->name); + return -ENODATA; + } + + if (!voltdm->volt_data) { + pr_err("%s: No voltage data defined for vdd_%s\n", + __func__, voltdm->name); + return -ENODATA; + } + + /* Adjust voltage to the exact voltage from the OPP table */ + for (i = 0; voltdm->volt_data[i].volt_nominal != 0; i++) { + if (voltdm->volt_data[i].volt_nominal >= target_volt) { + volt = voltdm->volt_data[i].volt_nominal; + break; + } + } + + if (!volt) { + pr_warn("%s: not scaling. OPP voltage for %lu, not found.\n", + __func__, target_volt); + return -EINVAL; + } + + ret = voltdm->scale(voltdm, volt); + if (!ret) + voltdm->nominal_volt = volt; + + return ret; +} + +/** + * voltdm_reset() - Resets the voltage of a particular voltage domain + * to that of the current OPP. + * @voltdm: pointer to the voltage domain whose voltage is to be reset. + * + * This API finds out the correct voltage the voltage domain is supposed + * to be at and resets the voltage to that level. Should be used especially + * while disabling any voltage compensation modules. + */ +void voltdm_reset(struct voltagedomain *voltdm) +{ + unsigned long target_volt; + + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return; + } + + target_volt = voltdm_get_voltage(voltdm); + if (!target_volt) { + pr_err("%s: unable to find current voltage for vdd_%s\n", + __func__, voltdm->name); + return; + } + + voltdm_scale(voltdm, target_volt); +} + +/** + * omap_voltage_get_volttable() - API to get the voltage table associated with a + * particular voltage domain. + * @voltdm: pointer to the VDD for which the voltage table is required + * @volt_data: the voltage table for the particular vdd which is to be + * populated by this API + * + * This API populates the voltage table associated with a VDD into the + * passed parameter pointer. Returns the count of distinct voltages + * supported by this vdd. + * + */ +void omap_voltage_get_volttable(struct voltagedomain *voltdm, + struct omap_volt_data **volt_data) +{ + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return; + } + + *volt_data = voltdm->volt_data; +} + +/** + * omap_voltage_get_voltdata() - API to get the voltage table entry for a + * particular voltage + * @voltdm: pointer to the VDD whose voltage table has to be searched + * @volt: the voltage to be searched in the voltage table + * + * This API searches through the voltage table for the required voltage + * domain and tries to find a matching entry for the passed voltage volt. + * If a matching entry is found volt_data is populated with that entry. + * This API searches only through the non-compensated voltages int the + * voltage table. + * Returns pointer to the voltage table entry corresponding to volt on + * success. Returns -ENODATA if no voltage table exisits for the passed voltage + * domain or if there is no matching entry. + */ +struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm, + unsigned long volt) +{ + int i; + + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return ERR_PTR(-EINVAL); + } + + if (!voltdm->volt_data) { + pr_warn("%s: voltage table does not exist for vdd_%s\n", + __func__, voltdm->name); + return ERR_PTR(-ENODATA); + } + + for (i = 0; voltdm->volt_data[i].volt_nominal != 0; i++) { + if (voltdm->volt_data[i].volt_nominal == volt) + return &voltdm->volt_data[i]; + } + + pr_notice("%s: Unable to match the current voltage with the voltage table for vdd_%s\n", + __func__, voltdm->name); + + return ERR_PTR(-ENODATA); +} + +/** + * omap_voltage_register_pmic() - API to register PMIC specific data + * @voltdm: pointer to the VDD for which the PMIC specific data is + * to be registered + * @pmic: the structure containing pmic info + * + * This API is to be called by the SOC/PMIC file to specify the + * pmic specific info as present in omap_voltdm_pmic structure. + */ +int omap_voltage_register_pmic(struct voltagedomain *voltdm, + struct omap_voltdm_pmic *pmic) +{ + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return -EINVAL; + } + + voltdm->pmic = pmic; + + return 0; +} + +/** + * omap_voltage_late_init() - Init the various voltage parameters + * + * This API is to be called in the later stages of the + * system boot to init the voltage controller and + * voltage processors. + */ +int __init omap_voltage_late_init(void) +{ + struct voltagedomain *voltdm; + + if (list_empty(&voltdm_list)) { + pr_err("%s: Voltage driver support not added\n", + __func__); + return -EINVAL; + } + + list_for_each_entry(voltdm, &voltdm_list, node) { + struct clk *sys_ck; + + if (!voltdm->scalable) + continue; + + sys_ck = clk_get(NULL, voltdm->sys_clk.name); + if (IS_ERR(sys_ck)) { + pr_warn("%s: Could not get sys clk.\n", __func__); + return -EINVAL; + } + voltdm->sys_clk.rate = clk_get_rate(sys_ck); + WARN_ON(!voltdm->sys_clk.rate); + clk_put(sys_ck); + + if (voltdm->vc) { + voltdm->scale = omap_vc_bypass_scale; + omap_vc_init_channel(voltdm); + } + + if (voltdm->vp) { + voltdm->scale = omap_vp_forceupdate_scale; + omap_vp_init(voltdm); + } + } + + return 0; +} + +static struct voltagedomain *_voltdm_lookup(const char *name) +{ + struct voltagedomain *voltdm, *temp_voltdm; + + voltdm = NULL; + + list_for_each_entry(temp_voltdm, &voltdm_list, node) { + if (!strcmp(name, temp_voltdm->name)) { + voltdm = temp_voltdm; + break; + } + } + + return voltdm; +} + +static int _voltdm_register(struct voltagedomain *voltdm) +{ + if (!voltdm || !voltdm->name) + return -EINVAL; + + list_add(&voltdm->node, &voltdm_list); + + pr_debug("voltagedomain: registered %s\n", voltdm->name); + + return 0; +} + +/** + * voltdm_lookup - look up a voltagedomain by name, return a pointer + * @name: name of voltagedomain + * + * Find a registered voltagedomain by its name @name. Returns a pointer + * to the struct voltagedomain if found, or NULL otherwise. + */ +struct voltagedomain *voltdm_lookup(const char *name) +{ + struct voltagedomain *voltdm ; + + if (!name) + return NULL; + + voltdm = _voltdm_lookup(name); + + return voltdm; +} + +/** + * voltdm_init - set up the voltagedomain layer + * @voltdm_list: array of struct voltagedomain pointers to register + * + * Loop through the array of voltagedomains @voltdm_list, registering all + * that are available on the current CPU. If voltdm_list is supplied + * and not null, all of the referenced voltagedomains will be + * registered. No return value. + */ +void voltdm_init(struct voltagedomain **voltdms) +{ + struct voltagedomain **v; + + if (voltdms) { + for (v = voltdms; *v; v++) + _voltdm_register(*v); + } +} diff --git a/arch/arm/mach-omap2/voltage.h b/arch/arm/mach-omap2/voltage.h new file mode 100644 index 000000000..e610f63a0 --- /dev/null +++ b/arch/arm/mach-omap2/voltage.h @@ -0,0 +1,168 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP Voltage Management Routines + * + * Author: Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2009 Texas Instruments, Inc. + * Thara Gopinath <thara@ti.com> + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_VOLTAGE_H +#define __ARCH_ARM_MACH_OMAP2_VOLTAGE_H + +#include <linux/err.h> + +#include <linux/platform_data/voltage-omap.h> + +#include "vc.h" +#include "vp.h" + +struct powerdomain; + +/* + * OMAP3 GENERIC setup times. Revisit to see if these needs to be + * passed from board or PMIC file + */ +#define OMAP3_CLKSETUP 0xff +#define OMAP3_VOLTOFFSET 0xff +#define OMAP3_VOLTSETUP2 0xff + +/** + * struct omap_vfsm_instance - per-voltage manager FSM register/bitfield + * data + * @voltsetup_mask: SETUP_TIME* bitmask in the PRM_VOLTSETUP* register + * @voltsetup_reg: register offset of PRM_VOLTSETUP from PRM base + * @voltsetup_off_reg: register offset of PRM_VOLTSETUP_OFF from PRM base + * + * XXX What about VOLTOFFSET/VOLTCTRL? + */ +struct omap_vfsm_instance { + u32 voltsetup_mask; + u8 voltsetup_reg; + u8 voltsetup_off_reg; +}; + +/** + * struct voltagedomain - omap voltage domain global structure. + * @name: Name of the voltage domain which can be used as a unique identifier. + * @scalable: Whether or not this voltage domain is scalable + * @node: list_head linking all voltage domains + * @vc: pointer to VC channel associated with this voltagedomain + * @vp: pointer to VP associated with this voltagedomain + * @read: read a VC/VP register + * @write: write a VC/VP register + * @read: read-modify-write a VC/VP register + * @sys_clk: system clock name/frequency, used for various timing calculations + * @scale: function used to scale the voltage of the voltagedomain + * @nominal_volt: current nominal voltage for this voltage domain + * @volt_data: voltage table having the distinct voltages supported + * by the domain and other associated per voltage data. + */ +struct voltagedomain { + char *name; + bool scalable; + struct list_head node; + struct omap_vc_channel *vc; + const struct omap_vfsm_instance *vfsm; + struct omap_vp_instance *vp; + struct omap_voltdm_pmic *pmic; + struct omap_vp_param *vp_param; + struct omap_vc_param *vc_param; + + /* VC/VP register access functions: SoC specific */ + u32 (*read) (u8 offset); + void (*write) (u32 val, u8 offset); + u32 (*rmw)(u32 mask, u32 bits, u8 offset); + + union { + const char *name; + u32 rate; + } sys_clk; + + int (*scale) (struct voltagedomain *voltdm, + unsigned long target_volt); + + u32 nominal_volt; + struct omap_volt_data *volt_data; +}; + +/* Min and max voltages from OMAP perspective */ +#define OMAP3430_VP1_VLIMITTO_VDDMIN 850000 +#define OMAP3430_VP1_VLIMITTO_VDDMAX 1425000 +#define OMAP3430_VP2_VLIMITTO_VDDMIN 900000 +#define OMAP3430_VP2_VLIMITTO_VDDMAX 1150000 + +#define OMAP3630_VP1_VLIMITTO_VDDMIN 900000 +#define OMAP3630_VP1_VLIMITTO_VDDMAX 1350000 +#define OMAP3630_VP2_VLIMITTO_VDDMIN 900000 +#define OMAP3630_VP2_VLIMITTO_VDDMAX 1200000 + +#define OMAP4_VP_MPU_VLIMITTO_VDDMIN 830000 +#define OMAP4_VP_MPU_VLIMITTO_VDDMAX 1410000 +#define OMAP4_VP_IVA_VLIMITTO_VDDMIN 830000 +#define OMAP4_VP_IVA_VLIMITTO_VDDMAX 1260000 +#define OMAP4_VP_CORE_VLIMITTO_VDDMIN 830000 +#define OMAP4_VP_CORE_VLIMITTO_VDDMAX 1200000 + +/** + * struct omap_voltdm_pmic - PMIC specific data required by voltage driver. + * @slew_rate: PMIC slew rate (in uv/us) + * @step_size: PMIC voltage step size (in uv) + * @i2c_slave_addr: I2C slave address of PMIC + * @volt_reg_addr: voltage configuration register address + * @cmd_reg_addr: command (on, on-LP, ret, off) configuration register address + * @i2c_high_speed: whether VC uses I2C high-speed mode to PMIC + * @i2c_mcode: master code value for I2C high-speed preamble transmission + * @vsel_to_uv: PMIC API to convert vsel value to actual voltage in uV. + * @uv_to_vsel: PMIC API to convert voltage in uV to vsel value. + */ +struct omap_voltdm_pmic { + int slew_rate; + int step_size; + u16 i2c_slave_addr; + u16 volt_reg_addr; + u16 cmd_reg_addr; + u8 vp_erroroffset; + u8 vp_vstepmin; + u8 vp_vstepmax; + u32 vddmin; + u32 vddmax; + u8 vp_timeout_us; + bool i2c_high_speed; + u32 i2c_pad_load; + u8 i2c_mcode; + unsigned long (*vsel_to_uv) (const u8 vsel); + u8 (*uv_to_vsel) (unsigned long uV); +}; + +struct omap_vp_param { + u32 vddmax; + u32 vddmin; +}; + +struct omap_vc_param { + u32 on; + u32 onlp; + u32 ret; + u32 off; +}; + +void omap_voltage_get_volttable(struct voltagedomain *voltdm, + struct omap_volt_data **volt_data); +struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm, + unsigned long volt); +int omap_voltage_register_pmic(struct voltagedomain *voltdm, + struct omap_voltdm_pmic *pmic); +int omap_voltage_late_init(void); + +extern void omap2xxx_voltagedomains_init(void); +extern void omap3xxx_voltagedomains_init(void); +extern void omap44xx_voltagedomains_init(void); +extern void omap54xx_voltagedomains_init(void); + +struct voltagedomain *voltdm_lookup(const char *name); +void voltdm_init(struct voltagedomain **voltdm_list); +void voltdm_reset(struct voltagedomain *voltdm); +unsigned long voltdm_get_voltage(struct voltagedomain *voltdm); +#endif diff --git a/arch/arm/mach-omap2/voltagedomains2xxx_data.c b/arch/arm/mach-omap2/voltagedomains2xxx_data.c new file mode 100644 index 000000000..9bc116fe3 --- /dev/null +++ b/arch/arm/mach-omap2/voltagedomains2xxx_data.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 voltage domain data + * + * Copyright (C) 2011 Texas Instruments, Inc. + */ +#include <linux/kernel.h> +#include <linux/init.h> + +#include "voltage.h" + +static struct voltagedomain omap2_voltdm_core = { + .name = "core", +}; + +static struct voltagedomain omap2_voltdm_wkup = { + .name = "wakeup", +}; + +static struct voltagedomain *voltagedomains_omap2[] __initdata = { + &omap2_voltdm_core, + &omap2_voltdm_wkup, + NULL, +}; + +void __init omap2xxx_voltagedomains_init(void) +{ + voltdm_init(voltagedomains_omap2); +} diff --git a/arch/arm/mach-omap2/voltagedomains3xxx_data.c b/arch/arm/mach-omap2/voltagedomains3xxx_data.c new file mode 100644 index 000000000..e98a3f289 --- /dev/null +++ b/arch/arm/mach-omap2/voltagedomains3xxx_data.c @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 voltage domain data + * + * Copyright (C) 2007, 2010 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + */ +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/init.h> + +#include "soc.h" +#include "common.h" +#include "prm-regbits-34xx.h" +#include "omap_opp_data.h" +#include "voltage.h" +#include "vc.h" +#include "vp.h" + +/* + * VDD data + */ + +/* OMAP3-common voltagedomain data */ + +static struct voltagedomain omap3_voltdm_wkup = { + .name = "wakeup", +}; + +/* 34xx/36xx voltagedomain data */ + +static const struct omap_vfsm_instance omap3_vdd1_vfsm = { + .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET, + .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK, +}; + +static const struct omap_vfsm_instance omap3_vdd2_vfsm = { + .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET, + .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK, +}; + +static struct voltagedomain omap3_voltdm_mpu = { + .name = "mpu_iva", + .scalable = true, + .read = omap3_prm_vcvp_read, + .write = omap3_prm_vcvp_write, + .rmw = omap3_prm_vcvp_rmw, + .vc = &omap3_vc_mpu, + .vfsm = &omap3_vdd1_vfsm, + .vp = &omap3_vp_mpu, +}; + +static struct voltagedomain omap3_voltdm_core = { + .name = "core", + .scalable = true, + .read = omap3_prm_vcvp_read, + .write = omap3_prm_vcvp_write, + .rmw = omap3_prm_vcvp_rmw, + .vc = &omap3_vc_core, + .vfsm = &omap3_vdd2_vfsm, + .vp = &omap3_vp_core, +}; + +static struct voltagedomain *voltagedomains_omap3[] __initdata = { + &omap3_voltdm_mpu, + &omap3_voltdm_core, + &omap3_voltdm_wkup, + NULL, +}; + +/* AM35xx voltagedomain data */ + +static struct voltagedomain am35xx_voltdm_mpu = { + .name = "mpu_iva", +}; + +static struct voltagedomain am35xx_voltdm_core = { + .name = "core", +}; + +static struct voltagedomain *voltagedomains_am35xx[] __initdata = { + &am35xx_voltdm_mpu, + &am35xx_voltdm_core, + &omap3_voltdm_wkup, + NULL, +}; + + +static const char *const sys_clk_name __initconst = "sys_ck"; + +void __init omap3xxx_voltagedomains_init(void) +{ + struct voltagedomain *voltdm; + struct voltagedomain **voltdms; + int i; + + /* + * XXX Will depend on the process, validation, and binning + * for the currently-running IC + */ +#ifdef CONFIG_PM_OPP + if (cpu_is_omap3630()) { + omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data; + omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data; + } else { + omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data; + omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data; + } +#endif + + omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data; + omap3_voltdm_core.vp_param = &omap3_core_vp_data; + omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data; + omap3_voltdm_core.vc_param = &omap3_core_vc_data; + + if (soc_is_am35xx()) + voltdms = voltagedomains_am35xx; + else + voltdms = voltagedomains_omap3; + + for (i = 0; voltdm = voltdms[i], voltdm; i++) + voltdm->sys_clk.name = sys_clk_name; + + voltdm_init(voltdms); +}; diff --git a/arch/arm/mach-omap2/voltagedomains44xx_data.c b/arch/arm/mach-omap2/voltagedomains44xx_data.c new file mode 100644 index 000000000..5ea86f16f --- /dev/null +++ b/arch/arm/mach-omap2/voltagedomains44xx_data.c @@ -0,0 +1,127 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3/OMAP4 Voltage Management Routines + * + * Author: Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2007 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * + * Copyright (C) 2008 Nokia Corporation + * Kalle Jokiniemi + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Thara Gopinath <thara@ti.com> + */ +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/init.h> + +#include "common.h" +#include "soc.h" +#include "prm-regbits-44xx.h" +#include "prm44xx.h" +#include "prcm44xx.h" +#include "prminst44xx.h" +#include "voltage.h" +#include "omap_opp_data.h" +#include "vc.h" +#include "vp.h" + +static const struct omap_vfsm_instance omap4_vdd_mpu_vfsm = { + .voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET, + .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_MPU_OFF_OFFSET, +}; + +static const struct omap_vfsm_instance omap4_vdd_iva_vfsm = { + .voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET, + .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_IVA_OFF_OFFSET, +}; + +static const struct omap_vfsm_instance omap4_vdd_core_vfsm = { + .voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET, + .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_CORE_OFF_OFFSET, +}; + +static struct voltagedomain omap4_voltdm_mpu = { + .name = "mpu", + .scalable = true, + .read = omap4_prm_vcvp_read, + .write = omap4_prm_vcvp_write, + .rmw = omap4_prm_vcvp_rmw, + .vc = &omap4_vc_mpu, + .vfsm = &omap4_vdd_mpu_vfsm, + .vp = &omap4_vp_mpu, +}; + +static struct voltagedomain omap4_voltdm_iva = { + .name = "iva", + .scalable = true, + .read = omap4_prm_vcvp_read, + .write = omap4_prm_vcvp_write, + .rmw = omap4_prm_vcvp_rmw, + .vc = &omap4_vc_iva, + .vfsm = &omap4_vdd_iva_vfsm, + .vp = &omap4_vp_iva, +}; + +static struct voltagedomain omap4_voltdm_core = { + .name = "core", + .scalable = true, + .read = omap4_prm_vcvp_read, + .write = omap4_prm_vcvp_write, + .rmw = omap4_prm_vcvp_rmw, + .vc = &omap4_vc_core, + .vfsm = &omap4_vdd_core_vfsm, + .vp = &omap4_vp_core, +}; + +static struct voltagedomain omap4_voltdm_wkup = { + .name = "wakeup", +}; + +static struct voltagedomain *voltagedomains_omap4[] __initdata = { + &omap4_voltdm_mpu, + &omap4_voltdm_iva, + &omap4_voltdm_core, + &omap4_voltdm_wkup, + NULL, +}; + +static const char *const sys_clk_name __initconst = "sys_clkin_ck"; + +void __init omap44xx_voltagedomains_init(void) +{ + struct voltagedomain *voltdm; + int i; + + /* + * XXX Will depend on the process, validation, and binning + * for the currently-running IC + */ +#ifdef CONFIG_PM_OPP + if (cpu_is_omap443x()) { + omap4_voltdm_mpu.volt_data = omap443x_vdd_mpu_volt_data; + omap4_voltdm_iva.volt_data = omap443x_vdd_iva_volt_data; + omap4_voltdm_core.volt_data = omap443x_vdd_core_volt_data; + } else if (cpu_is_omap446x()) { + omap4_voltdm_mpu.volt_data = omap446x_vdd_mpu_volt_data; + omap4_voltdm_iva.volt_data = omap446x_vdd_iva_volt_data; + omap4_voltdm_core.volt_data = omap446x_vdd_core_volt_data; + } +#endif + + omap4_voltdm_mpu.vp_param = &omap4_mpu_vp_data; + omap4_voltdm_iva.vp_param = &omap4_iva_vp_data; + omap4_voltdm_core.vp_param = &omap4_core_vp_data; + + omap4_voltdm_mpu.vc_param = &omap4_mpu_vc_data; + omap4_voltdm_iva.vc_param = &omap4_iva_vc_data; + omap4_voltdm_core.vc_param = &omap4_core_vc_data; + + for (i = 0; voltdm = voltagedomains_omap4[i], voltdm; i++) + voltdm->sys_clk.name = sys_clk_name; + + voltdm_init(voltagedomains_omap4); +}; diff --git a/arch/arm/mach-omap2/voltagedomains54xx_data.c b/arch/arm/mach-omap2/voltagedomains54xx_data.c new file mode 100644 index 000000000..e60d76db0 --- /dev/null +++ b/arch/arm/mach-omap2/voltagedomains54xx_data.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP5 Voltage Management Routines + * + * Based on voltagedomains44xx_data.c + * + * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com + */ +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/init.h> + +#include "common.h" + +#include "prm54xx.h" +#include "voltage.h" +#include "omap_opp_data.h" +#include "vc.h" +#include "vp.h" + +static const struct omap_vfsm_instance omap5_vdd_mpu_vfsm = { + .voltsetup_reg = OMAP54XX_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET, +}; + +static const struct omap_vfsm_instance omap5_vdd_mm_vfsm = { + .voltsetup_reg = OMAP54XX_PRM_VOLTSETUP_MM_RET_SLEEP_OFFSET, +}; + +static const struct omap_vfsm_instance omap5_vdd_core_vfsm = { + .voltsetup_reg = OMAP54XX_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET, +}; + +static struct voltagedomain omap5_voltdm_mpu = { + .name = "mpu", + .scalable = true, + .read = omap4_prm_vcvp_read, + .write = omap4_prm_vcvp_write, + .rmw = omap4_prm_vcvp_rmw, + .vc = &omap4_vc_mpu, + .vfsm = &omap5_vdd_mpu_vfsm, + .vp = &omap4_vp_mpu, +}; + +static struct voltagedomain omap5_voltdm_mm = { + .name = "mm", + .scalable = true, + .read = omap4_prm_vcvp_read, + .write = omap4_prm_vcvp_write, + .rmw = omap4_prm_vcvp_rmw, + .vc = &omap4_vc_iva, + .vfsm = &omap5_vdd_mm_vfsm, + .vp = &omap4_vp_iva, +}; + +static struct voltagedomain omap5_voltdm_core = { + .name = "core", + .scalable = true, + .read = omap4_prm_vcvp_read, + .write = omap4_prm_vcvp_write, + .rmw = omap4_prm_vcvp_rmw, + .vc = &omap4_vc_core, + .vfsm = &omap5_vdd_core_vfsm, + .vp = &omap4_vp_core, +}; + +static struct voltagedomain omap5_voltdm_wkup = { + .name = "wkup", +}; + +static struct voltagedomain *voltagedomains_omap5[] __initdata = { + &omap5_voltdm_mpu, + &omap5_voltdm_mm, + &omap5_voltdm_core, + &omap5_voltdm_wkup, + NULL, +}; + +static const char *const sys_clk_name __initconst = "sys_clkin"; + +void __init omap54xx_voltagedomains_init(void) +{ + struct voltagedomain *voltdm; + int i; + + for (i = 0; voltdm = voltagedomains_omap5[i], voltdm; i++) + voltdm->sys_clk.name = sys_clk_name; + + voltdm_init(voltagedomains_omap5); +}; diff --git a/arch/arm/mach-omap2/vp.c b/arch/arm/mach-omap2/vp.c new file mode 100644 index 000000000..03c481c47 --- /dev/null +++ b/arch/arm/mach-omap2/vp.c @@ -0,0 +1,283 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/kernel.h> +#include <linux/init.h> + +#include "common.h" + +#include "voltage.h" +#include "vp.h" +#include "prm-regbits-34xx.h" +#include "prm-regbits-44xx.h" +#include "prm44xx.h" + +static u32 _vp_set_init_voltage(struct voltagedomain *voltdm, u32 volt) +{ + struct omap_vp_instance *vp = voltdm->vp; + u32 vpconfig; + char vsel; + + vsel = voltdm->pmic->uv_to_vsel(volt); + + vpconfig = voltdm->read(vp->vpconfig); + vpconfig &= ~(vp->common->vpconfig_initvoltage_mask | + vp->common->vpconfig_forceupdate | + vp->common->vpconfig_initvdd); + vpconfig |= vsel << __ffs(vp->common->vpconfig_initvoltage_mask); + voltdm->write(vpconfig, vp->vpconfig); + + /* Trigger initVDD value copy to voltage processor */ + voltdm->write((vpconfig | vp->common->vpconfig_initvdd), + vp->vpconfig); + + /* Clear initVDD copy trigger bit */ + voltdm->write(vpconfig, vp->vpconfig); + + return vpconfig; +} + +/* Generic voltage init functions */ +void __init omap_vp_init(struct voltagedomain *voltdm) +{ + struct omap_vp_instance *vp = voltdm->vp; + u32 val, sys_clk_rate, timeout, waittime; + u32 vddmin, vddmax, vstepmin, vstepmax; + + if (!voltdm->pmic || !voltdm->pmic->uv_to_vsel) { + pr_err("%s: No PMIC info for vdd_%s\n", __func__, voltdm->name); + return; + } + + if (!voltdm->read || !voltdm->write) { + pr_err("%s: No read/write API for accessing vdd_%s regs\n", + __func__, voltdm->name); + return; + } + + vp->enabled = false; + + /* Divide to avoid overflow */ + sys_clk_rate = voltdm->sys_clk.rate / 1000; + + timeout = (sys_clk_rate * voltdm->pmic->vp_timeout_us) / 1000; + vddmin = max(voltdm->vp_param->vddmin, voltdm->pmic->vddmin); + vddmax = min(voltdm->vp_param->vddmax, voltdm->pmic->vddmax); + vddmin = voltdm->pmic->uv_to_vsel(vddmin); + vddmax = voltdm->pmic->uv_to_vsel(vddmax); + + waittime = DIV_ROUND_UP(voltdm->pmic->step_size * sys_clk_rate, + 1000 * voltdm->pmic->slew_rate); + vstepmin = voltdm->pmic->vp_vstepmin; + vstepmax = voltdm->pmic->vp_vstepmax; + + /* + * VP_CONFIG: error gain is not set here, it will be updated + * on each scale, based on OPP. + */ + val = (voltdm->pmic->vp_erroroffset << + __ffs(voltdm->vp->common->vpconfig_erroroffset_mask)) | + vp->common->vpconfig_timeouten; + voltdm->write(val, vp->vpconfig); + + /* VSTEPMIN */ + val = (waittime << vp->common->vstepmin_smpswaittimemin_shift) | + (vstepmin << vp->common->vstepmin_stepmin_shift); + voltdm->write(val, vp->vstepmin); + + /* VSTEPMAX */ + val = (vstepmax << vp->common->vstepmax_stepmax_shift) | + (waittime << vp->common->vstepmax_smpswaittimemax_shift); + voltdm->write(val, vp->vstepmax); + + /* VLIMITTO */ + val = (vddmax << vp->common->vlimitto_vddmax_shift) | + (vddmin << vp->common->vlimitto_vddmin_shift) | + (timeout << vp->common->vlimitto_timeout_shift); + voltdm->write(val, vp->vlimitto); +} + +int omap_vp_update_errorgain(struct voltagedomain *voltdm, + unsigned long target_volt) +{ + struct omap_volt_data *volt_data; + + if (!voltdm->vp) + return -EINVAL; + + /* Get volt_data corresponding to target_volt */ + volt_data = omap_voltage_get_voltdata(voltdm, target_volt); + if (IS_ERR(volt_data)) + return -EINVAL; + + /* Setting vp errorgain based on the voltage */ + voltdm->rmw(voltdm->vp->common->vpconfig_errorgain_mask, + volt_data->vp_errgain << + __ffs(voltdm->vp->common->vpconfig_errorgain_mask), + voltdm->vp->vpconfig); + + return 0; +} + +/* VP force update method of voltage scaling */ +int omap_vp_forceupdate_scale(struct voltagedomain *voltdm, + unsigned long target_volt) +{ + struct omap_vp_instance *vp = voltdm->vp; + u32 vpconfig; + u8 target_vsel, current_vsel; + int ret, timeout = 0; + + ret = omap_vc_pre_scale(voltdm, target_volt, &target_vsel, ¤t_vsel); + if (ret) + return ret; + + /* + * Clear all pending TransactionDone interrupt/status. Typical latency + * is <3us + */ + while (timeout++ < VP_TRANXDONE_TIMEOUT) { + vp->common->ops->clear_txdone(vp->id); + if (!vp->common->ops->check_txdone(vp->id)) + break; + udelay(1); + } + if (timeout >= VP_TRANXDONE_TIMEOUT) { + pr_warn("%s: vdd_%s TRANXDONE timeout exceeded. Voltage change aborted\n", + __func__, voltdm->name); + return -ETIMEDOUT; + } + + vpconfig = _vp_set_init_voltage(voltdm, target_volt); + + /* Force update of voltage */ + voltdm->write(vpconfig | vp->common->vpconfig_forceupdate, + voltdm->vp->vpconfig); + + /* + * Wait for TransactionDone. Typical latency is <200us. + * Depends on SMPSWAITTIMEMIN/MAX and voltage change + */ + timeout = 0; + omap_test_timeout(vp->common->ops->check_txdone(vp->id), + VP_TRANXDONE_TIMEOUT, timeout); + if (timeout >= VP_TRANXDONE_TIMEOUT) + pr_err("%s: vdd_%s TRANXDONE timeout exceeded. TRANXDONE never got set after the voltage update\n", + __func__, voltdm->name); + + omap_vc_post_scale(voltdm, target_volt, target_vsel, current_vsel); + + /* + * Disable TransactionDone interrupt , clear all status, clear + * control registers + */ + timeout = 0; + while (timeout++ < VP_TRANXDONE_TIMEOUT) { + vp->common->ops->clear_txdone(vp->id); + if (!vp->common->ops->check_txdone(vp->id)) + break; + udelay(1); + } + + if (timeout >= VP_TRANXDONE_TIMEOUT) + pr_warn("%s: vdd_%s TRANXDONE timeout exceeded while trying to clear the TRANXDONE status\n", + __func__, voltdm->name); + + /* Clear force bit */ + voltdm->write(vpconfig, vp->vpconfig); + + return 0; +} + +/** + * omap_vp_enable() - API to enable a particular VP + * @voltdm: pointer to the VDD whose VP is to be enabled. + * + * This API enables a particular voltage processor. Needed by the smartreflex + * class drivers. + */ +void omap_vp_enable(struct voltagedomain *voltdm) +{ + struct omap_vp_instance *vp; + u32 vpconfig, volt; + + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return; + } + + vp = voltdm->vp; + if (!voltdm->read || !voltdm->write) { + pr_err("%s: No read/write API for accessing vdd_%s regs\n", + __func__, voltdm->name); + return; + } + + /* If VP is already enabled, do nothing. Return */ + if (vp->enabled) + return; + + volt = voltdm_get_voltage(voltdm); + if (!volt) { + pr_warn("%s: unable to find current voltage for %s\n", + __func__, voltdm->name); + return; + } + + vpconfig = _vp_set_init_voltage(voltdm, volt); + + /* Enable VP */ + vpconfig |= vp->common->vpconfig_vpenable; + voltdm->write(vpconfig, vp->vpconfig); + + vp->enabled = true; +} + +/** + * omap_vp_disable() - API to disable a particular VP + * @voltdm: pointer to the VDD whose VP is to be disabled. + * + * This API disables a particular voltage processor. Needed by the smartreflex + * class drivers. + */ +void omap_vp_disable(struct voltagedomain *voltdm) +{ + struct omap_vp_instance *vp; + u32 vpconfig; + int timeout; + + if (IS_ERR_OR_NULL(voltdm)) { + pr_warn("%s: VDD specified does not exist!\n", __func__); + return; + } + + vp = voltdm->vp; + if (!voltdm->read || !voltdm->write) { + pr_err("%s: No read/write API for accessing vdd_%s regs\n", + __func__, voltdm->name); + return; + } + + /* If VP is already disabled, do nothing. Return */ + if (!vp->enabled) { + pr_warn("%s: Trying to disable VP for vdd_%s when it is already disabled\n", + __func__, voltdm->name); + return; + } + + /* Disable VP */ + vpconfig = voltdm->read(vp->vpconfig); + vpconfig &= ~vp->common->vpconfig_vpenable; + voltdm->write(vpconfig, vp->vpconfig); + + /* + * Wait for VP idle Typical latency is <2us. Maximum latency is ~100us + */ + omap_test_timeout((voltdm->read(vp->vstatus)), + VP_IDLE_TIMEOUT, timeout); + + if (timeout >= VP_IDLE_TIMEOUT) + pr_warn("%s: vdd_%s idle timedout\n", __func__, voltdm->name); + + vp->enabled = false; + + return; +} diff --git a/arch/arm/mach-omap2/vp.h b/arch/arm/mach-omap2/vp.h new file mode 100644 index 000000000..4d7dd204e --- /dev/null +++ b/arch/arm/mach-omap2/vp.h @@ -0,0 +1,123 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * OMAP3/4 Voltage Processor (VP) structure and macro definitions + * + * Copyright (C) 2007, 2010 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + */ +#ifndef __ARCH_ARM_MACH_OMAP2_VP_H +#define __ARCH_ARM_MACH_OMAP2_VP_H + +#include <linux/kernel.h> + +struct voltagedomain; + +/* XXX document */ +#define VP_IDLE_TIMEOUT 200 +#define VP_TRANXDONE_TIMEOUT 300 + +/** + * struct omap_vp_ops - per-VP operations + * @check_txdone: check for VP transaction done + * @clear_txdone: clear VP transaction done status + */ +struct omap_vp_ops { + u32 (*check_txdone)(u8 vp_id); + void (*clear_txdone)(u8 vp_id); +}; + +/** + * struct omap_vp_common - register data common to all VDDs + * @vpconfig_erroroffset_mask: ERROROFFSET bitmask in the PRM_VP*_CONFIG reg + * @vpconfig_errorgain_mask: ERRORGAIN bitmask in the PRM_VP*_CONFIG reg + * @vpconfig_initvoltage_mask: INITVOLTAGE bitmask in the PRM_VP*_CONFIG reg + * @vpconfig_timeouten: TIMEOUT bitmask in the PRM_VP*_CONFIG reg + * @vpconfig_initvdd: INITVDD bitmask in the PRM_VP*_CONFIG reg + * @vpconfig_forceupdate: FORCEUPDATE bitmask in the PRM_VP*_CONFIG reg + * @vpconfig_vpenable: VPENABLE bitmask in the PRM_VP*_CONFIG reg + * @vpconfig_erroroffset_shift: ERROROFFSET field shift in PRM_VP*_CONFIG reg + * @vpconfig_errorgain_shift: ERRORGAIN field shift in PRM_VP*_CONFIG reg + * @vpconfig_initvoltage_shift: INITVOLTAGE field shift in PRM_VP*_CONFIG reg + * @vstepmin_stepmin_shift: VSTEPMIN field shift in the PRM_VP*_VSTEPMIN reg + * @vstepmin_smpswaittimemin_shift: SMPSWAITTIMEMIN field shift in PRM_VP*_VSTEPMIN reg + * @vstepmax_stepmax_shift: VSTEPMAX field shift in the PRM_VP*_VSTEPMAX reg + * @vstepmax_smpswaittimemax_shift: SMPSWAITTIMEMAX field shift in PRM_VP*_VSTEPMAX reg + * @vlimitto_vddmin_shift: VDDMIN field shift in PRM_VP*_VLIMITTO reg + * @vlimitto_vddmax_shift: VDDMAX field shift in PRM_VP*_VLIMITTO reg + * @vlimitto_timeout_shift: TIMEOUT field shift in PRM_VP*_VLIMITTO reg + * @vpvoltage_mask: VPVOLTAGE field mask in PRM_VP*_VOLTAGE reg + */ +struct omap_vp_common { + u32 vpconfig_erroroffset_mask; + u32 vpconfig_errorgain_mask; + u32 vpconfig_initvoltage_mask; + u8 vpconfig_timeouten; + u8 vpconfig_initvdd; + u8 vpconfig_forceupdate; + u8 vpconfig_vpenable; + u8 vstepmin_stepmin_shift; + u8 vstepmin_smpswaittimemin_shift; + u8 vstepmax_stepmax_shift; + u8 vstepmax_smpswaittimemax_shift; + u8 vlimitto_vddmin_shift; + u8 vlimitto_vddmax_shift; + u8 vlimitto_timeout_shift; + u8 vpvoltage_mask; + + const struct omap_vp_ops *ops; +}; + +/** + * struct omap_vp_instance - VP register offsets (per-VDD) + * @common: pointer to struct omap_vp_common * for this SoC + * @vpconfig: PRM_VP*_CONFIG reg offset from PRM start + * @vstepmin: PRM_VP*_VSTEPMIN reg offset from PRM start + * @vlimitto: PRM_VP*_VLIMITTO reg offset from PRM start + * @vstatus: PRM_VP*_VSTATUS reg offset from PRM start + * @voltage: PRM_VP*_VOLTAGE reg offset from PRM start + * @id: Unique identifier for VP instance. + * @enabled: flag to keep track of whether vp is enabled or not + * + * XXX vp_common is probably not needed since it is per-SoC + */ +struct omap_vp_instance { + const struct omap_vp_common *common; + u8 vpconfig; + u8 vstepmin; + u8 vstepmax; + u8 vlimitto; + u8 vstatus; + u8 voltage; + u8 id; + bool enabled; +}; + +extern struct omap_vp_instance omap3_vp_mpu; +extern struct omap_vp_instance omap3_vp_core; + +extern struct omap_vp_instance omap4_vp_mpu; +extern struct omap_vp_instance omap4_vp_iva; +extern struct omap_vp_instance omap4_vp_core; + +extern struct omap_vp_param omap3_mpu_vp_data; +extern struct omap_vp_param omap3_core_vp_data; + +extern struct omap_vp_param omap4_mpu_vp_data; +extern struct omap_vp_param omap4_iva_vp_data; +extern struct omap_vp_param omap4_core_vp_data; + +void omap_vp_init(struct voltagedomain *voltdm); +void omap_vp_enable(struct voltagedomain *voltdm); +void omap_vp_disable(struct voltagedomain *voltdm); +int omap_vp_forceupdate_scale(struct voltagedomain *voltdm, + unsigned long target_volt); +int omap_vp_update_errorgain(struct voltagedomain *voltdm, + unsigned long target_volt); + +#endif diff --git a/arch/arm/mach-omap2/vp3xxx_data.c b/arch/arm/mach-omap2/vp3xxx_data.c new file mode 100644 index 000000000..9db9dd269 --- /dev/null +++ b/arch/arm/mach-omap2/vp3xxx_data.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 Voltage Processor (VP) data + * + * Copyright (C) 2007, 2010 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + */ + +#include <linux/io.h> +#include <linux/err.h> +#include <linux/init.h> + +#include "common.h" + +#include "prm-regbits-34xx.h" +#include "voltage.h" + +#include "vp.h" +#include "prm2xxx_3xxx.h" + +static const struct omap_vp_ops omap3_vp_ops = { + .check_txdone = omap_prm_vp_check_txdone, + .clear_txdone = omap_prm_vp_clear_txdone, +}; + +/* + * VP data common to 34xx/36xx chips + * XXX This stuff presumably belongs in the vp3xxx.c or vp.c file. + */ +static const struct omap_vp_common omap3_vp_common = { + .vpconfig_erroroffset_mask = OMAP3430_ERROROFFSET_MASK, + .vpconfig_errorgain_mask = OMAP3430_ERRORGAIN_MASK, + .vpconfig_initvoltage_mask = OMAP3430_INITVOLTAGE_MASK, + .vpconfig_timeouten = OMAP3430_TIMEOUTEN_MASK, + .vpconfig_initvdd = OMAP3430_INITVDD_MASK, + .vpconfig_forceupdate = OMAP3430_FORCEUPDATE_MASK, + .vpconfig_vpenable = OMAP3430_VPENABLE_MASK, + .vstepmin_smpswaittimemin_shift = OMAP3430_SMPSWAITTIMEMIN_SHIFT, + .vstepmax_smpswaittimemax_shift = OMAP3430_SMPSWAITTIMEMAX_SHIFT, + .vstepmin_stepmin_shift = OMAP3430_VSTEPMIN_SHIFT, + .vstepmax_stepmax_shift = OMAP3430_VSTEPMAX_SHIFT, + .vlimitto_vddmin_shift = OMAP3430_VDDMIN_SHIFT, + .vlimitto_vddmax_shift = OMAP3430_VDDMAX_SHIFT, + .vlimitto_timeout_shift = OMAP3430_TIMEOUT_SHIFT, + .vpvoltage_mask = OMAP3430_VPVOLTAGE_MASK, + + .ops = &omap3_vp_ops, +}; + +struct omap_vp_instance omap3_vp_mpu = { + .id = OMAP3_VP_VDD_MPU_ID, + .common = &omap3_vp_common, + .vpconfig = OMAP3_PRM_VP1_CONFIG_OFFSET, + .vstepmin = OMAP3_PRM_VP1_VSTEPMIN_OFFSET, + .vstepmax = OMAP3_PRM_VP1_VSTEPMAX_OFFSET, + .vlimitto = OMAP3_PRM_VP1_VLIMITTO_OFFSET, + .vstatus = OMAP3_PRM_VP1_STATUS_OFFSET, + .voltage = OMAP3_PRM_VP1_VOLTAGE_OFFSET, +}; + +struct omap_vp_instance omap3_vp_core = { + .id = OMAP3_VP_VDD_CORE_ID, + .common = &omap3_vp_common, + .vpconfig = OMAP3_PRM_VP2_CONFIG_OFFSET, + .vstepmin = OMAP3_PRM_VP2_VSTEPMIN_OFFSET, + .vstepmax = OMAP3_PRM_VP2_VSTEPMAX_OFFSET, + .vlimitto = OMAP3_PRM_VP2_VLIMITTO_OFFSET, + .vstatus = OMAP3_PRM_VP2_STATUS_OFFSET, + .voltage = OMAP3_PRM_VP2_VOLTAGE_OFFSET, +}; + +struct omap_vp_param omap3_mpu_vp_data = { + .vddmin = OMAP3430_VP1_VLIMITTO_VDDMIN, + .vddmax = OMAP3430_VP1_VLIMITTO_VDDMAX, +}; + +struct omap_vp_param omap3_core_vp_data = { + .vddmin = OMAP3430_VP2_VLIMITTO_VDDMIN, + .vddmax = OMAP3430_VP2_VLIMITTO_VDDMAX, +}; diff --git a/arch/arm/mach-omap2/vp44xx_data.c b/arch/arm/mach-omap2/vp44xx_data.c new file mode 100644 index 000000000..ec7104ec8 --- /dev/null +++ b/arch/arm/mach-omap2/vp44xx_data.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * OMAP3 Voltage Processor (VP) data + * + * Copyright (C) 2007, 2010 Texas Instruments, Inc. + * Rajendra Nayak <rnayak@ti.com> + * Lesly A M <x0080970@ti.com> + * Thara Gopinath <thara@ti.com> + * + * Copyright (C) 2008, 2011 Nokia Corporation + * Kalle Jokiniemi + * Paul Walmsley + */ + +#include <linux/io.h> +#include <linux/err.h> +#include <linux/init.h> + +#include "common.h" + +#include "prm44xx.h" +#include "prm-regbits-44xx.h" +#include "voltage.h" + +#include "vp.h" + +static const struct omap_vp_ops omap4_vp_ops = { + .check_txdone = omap_prm_vp_check_txdone, + .clear_txdone = omap_prm_vp_clear_txdone, +}; + +/* + * VP data common to 44xx chips + * XXX This stuff presumably belongs in the vp44xx.c or vp.c file. + */ +static const struct omap_vp_common omap4_vp_common = { + .vpconfig_erroroffset_mask = OMAP4430_ERROROFFSET_MASK, + .vpconfig_errorgain_mask = OMAP4430_ERRORGAIN_MASK, + .vpconfig_initvoltage_mask = OMAP4430_INITVOLTAGE_MASK, + .vpconfig_timeouten = OMAP4430_TIMEOUTEN_MASK, + .vpconfig_initvdd = OMAP4430_INITVDD_MASK, + .vpconfig_forceupdate = OMAP4430_FORCEUPDATE_MASK, + .vpconfig_vpenable = OMAP4430_VPENABLE_MASK, + .vstepmin_smpswaittimemin_shift = OMAP4430_SMPSWAITTIMEMIN_SHIFT, + .vstepmax_smpswaittimemax_shift = OMAP4430_SMPSWAITTIMEMAX_SHIFT, + .vstepmin_stepmin_shift = OMAP4430_VSTEPMIN_SHIFT, + .vstepmax_stepmax_shift = OMAP4430_VSTEPMAX_SHIFT, + .vlimitto_vddmin_shift = OMAP4430_VDDMIN_SHIFT, + .vlimitto_vddmax_shift = OMAP4430_VDDMAX_SHIFT, + .vlimitto_timeout_shift = OMAP4430_TIMEOUT_SHIFT, + .vpvoltage_mask = OMAP4430_VPVOLTAGE_MASK, + .ops = &omap4_vp_ops, +}; + +struct omap_vp_instance omap4_vp_mpu = { + .id = OMAP4_VP_VDD_MPU_ID, + .common = &omap4_vp_common, + .vpconfig = OMAP4_PRM_VP_MPU_CONFIG_OFFSET, + .vstepmin = OMAP4_PRM_VP_MPU_VSTEPMIN_OFFSET, + .vstepmax = OMAP4_PRM_VP_MPU_VSTEPMAX_OFFSET, + .vlimitto = OMAP4_PRM_VP_MPU_VLIMITTO_OFFSET, + .vstatus = OMAP4_PRM_VP_MPU_STATUS_OFFSET, + .voltage = OMAP4_PRM_VP_MPU_VOLTAGE_OFFSET, +}; + +struct omap_vp_instance omap4_vp_iva = { + .id = OMAP4_VP_VDD_IVA_ID, + .common = &omap4_vp_common, + .vpconfig = OMAP4_PRM_VP_IVA_CONFIG_OFFSET, + .vstepmin = OMAP4_PRM_VP_IVA_VSTEPMIN_OFFSET, + .vstepmax = OMAP4_PRM_VP_IVA_VSTEPMAX_OFFSET, + .vlimitto = OMAP4_PRM_VP_IVA_VLIMITTO_OFFSET, + .vstatus = OMAP4_PRM_VP_IVA_STATUS_OFFSET, + .voltage = OMAP4_PRM_VP_IVA_VOLTAGE_OFFSET, +}; + +struct omap_vp_instance omap4_vp_core = { + .id = OMAP4_VP_VDD_CORE_ID, + .common = &omap4_vp_common, + .vpconfig = OMAP4_PRM_VP_CORE_CONFIG_OFFSET, + .vstepmin = OMAP4_PRM_VP_CORE_VSTEPMIN_OFFSET, + .vstepmax = OMAP4_PRM_VP_CORE_VSTEPMAX_OFFSET, + .vlimitto = OMAP4_PRM_VP_CORE_VLIMITTO_OFFSET, + .vstatus = OMAP4_PRM_VP_CORE_STATUS_OFFSET, + .voltage = OMAP4_PRM_VP_CORE_VOLTAGE_OFFSET, +}; + +struct omap_vp_param omap4_mpu_vp_data = { + .vddmin = OMAP4_VP_MPU_VLIMITTO_VDDMIN, + .vddmax = OMAP4_VP_MPU_VLIMITTO_VDDMAX, +}; + +struct omap_vp_param omap4_iva_vp_data = { + .vddmin = OMAP4_VP_IVA_VLIMITTO_VDDMIN, + .vddmax = OMAP4_VP_IVA_VLIMITTO_VDDMAX, +}; + +struct omap_vp_param omap4_core_vp_data = { + .vddmin = OMAP4_VP_CORE_VLIMITTO_VDDMIN, + .vddmax = OMAP4_VP_CORE_VLIMITTO_VDDMAX, +}; diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c new file mode 100644 index 000000000..898e7e332 --- /dev/null +++ b/arch/arm/mach-omap2/wd_timer.c @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * OMAP2+ MPU WD_TIMER-specific code + * + * Copyright (C) 2012 Texas Instruments, Inc. + */ + +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/err.h> + +#include <linux/platform_data/omap-wd-timer.h> + +#include "omap_hwmod.h" +#include "omap_device.h" +#include "wd_timer.h" +#include "common.h" +#include "prm.h" +#include "soc.h" + +/* + * In order to avoid any assumptions from bootloader regarding WDT + * settings, WDT module is reset during init. This enables the watchdog + * timer. Hence it is required to disable the watchdog after the WDT reset + * during init. Otherwise the system would reboot as per the default + * watchdog timer registers settings. + */ +#define OMAP_WDT_WPS 0x34 +#define OMAP_WDT_SPR 0x48 + +int omap2_wd_timer_disable(struct omap_hwmod *oh) +{ + void __iomem *base; + + if (!oh) { + pr_err("%s: Could not look up wdtimer_hwmod\n", __func__); + return -EINVAL; + } + + base = omap_hwmod_get_mpu_rt_va(oh); + if (!base) { + pr_err("%s: Could not get the base address for %s\n", + oh->name, __func__); + return -EINVAL; + } + + /* sequence required to disable watchdog */ + writel_relaxed(0xAAAA, base + OMAP_WDT_SPR); + while (readl_relaxed(base + OMAP_WDT_WPS) & 0x10) + cpu_relax(); + + writel_relaxed(0x5555, base + OMAP_WDT_SPR); + while (readl_relaxed(base + OMAP_WDT_WPS) & 0x10) + cpu_relax(); + + return 0; +} + +/** + * omap2_wd_timer_reset - reset and disable the WDTIMER IP block + * @oh: struct omap_hwmod * + * + * After the WDTIMER IP blocks are reset on OMAP2/3, we must also take + * care to execute the special watchdog disable sequence. This is + * because the watchdog is re-armed upon OCP softreset. (On OMAP4, + * this behavior was apparently changed and the watchdog is no longer + * re-armed after an OCP soft-reset.) Returns -ETIMEDOUT if the reset + * did not complete, or 0 upon success. + * + * XXX Most of this code should be moved to the omap_hwmod.c layer + * during a normal merge window. omap_hwmod_softreset() should be + * renamed to omap_hwmod_set_ocp_softreset(), and omap_hwmod_softreset() + * should call the hwmod _ocp_softreset() code. + * + * Returns: %0 on success or -errno value on error. + */ +int omap2_wd_timer_reset(struct omap_hwmod *oh) +{ + int c = 0; + + /* Write to the SOFTRESET bit */ + omap_hwmod_softreset(oh); + + /* Poll on RESETDONE bit */ + omap_test_timeout((omap_hwmod_read(oh, + oh->class->sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + + if (oh->class->sysc->srst_udelay) + udelay(oh->class->sysc->srst_udelay); + + if (c == MAX_MODULE_SOFTRESET_WAIT) + pr_warn("%s: %s: softreset failed (waited %d usec)\n", + __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); + else + pr_debug("%s: %s: softreset in %d usec\n", __func__, + oh->name, c); + + return (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT : + omap2_wd_timer_disable(oh); +} diff --git a/arch/arm/mach-omap2/wd_timer.h b/arch/arm/mach-omap2/wd_timer.h new file mode 100644 index 000000000..fa44a07a5 --- /dev/null +++ b/arch/arm/mach-omap2/wd_timer.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * OMAP2+ MPU WD_TIMER-specific function prototypes + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_WD_TIMER_H +#define __ARCH_ARM_MACH_OMAP2_WD_TIMER_H + +#include "omap_hwmod.h" + +extern int omap2_wd_timer_disable(struct omap_hwmod *oh); +extern int omap2_wd_timer_reset(struct omap_hwmod *oh); + +#endif |