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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
| commit | cf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch) | |
| tree | 757a3d280760c654767631cab5ad8af2d86d1848 /arch/mips/econet/init.c | |
| download | linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip | |
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij:
"Core changes:
- Use the non-blocking mux_state_try_select() in the generic MUX pin
control back-end
- Free pin maps on pinctrl_generic_to_map() failure in the core
helpers
New hardware pin control:
- Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC
(this is for the low power audio, LPASS = Low Power Audio SubSystem
portions)
- Upboard support on top of the Intel pin controller
- Apple T6030 and T6031 support (just compatible strings)
- Samsung Exynos 8855 SoC
- Mediatek MT6858 SoC
- Rockchip RK3308B and RV1106 SoCs
- Airoha EN7523 and AN7563 SoCs
Improvements:
- Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable
- Qualcomm improvements on top of the Qualcomm PDC (power domain
controller) irqchip improvements from tglx:s tree
- Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups
- The NPCM8xx driver has been put into shape fixing many pin and
group definitions
- Some non-urgent Tegra 264 pin assignments are fixed up
- Some non-urgent fixups to Airoha AN7581 and AN7583 registers and
pin assignments, missing features etc"
* tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits)
dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema
pinctrl: meson: sync some modify from A4
pinctrl: meson: a4: Add input enable pin configuration
pinctrl: realtek: rtd1625: remove unused group name spdif_sel
pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13
dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema
Revert "Merge branch 'ib-rsk7204' into devel"
pinctrl: rockchip: Add RV1106 pinctrl support
dt-bindings: pinctrl: rockchip: Add RV1106 compatible
pinctrl: rockchip: Decode drive strength in the get function
pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable
pinctrl: airoha: add support of an7563 SoC
dt-bindings: pinctrl: airoha: add support of an7563 pin controller
pinctrl: airoha: try to find chip scu node by phandle first
pinctrl: airoha: add support of en7523 SoC
dt-bindings: pinctrl: airoha: add support of en7523 pin controller
pinctrl: airoha: an7583: add support for olt pinmux
pinctrl: airoha: an7583: add support for pon_alt pinmux
pinctrl: airoha: an7583: add support for npu_uart pinmux
dt-bindings: pinctrl: airoha: an7583: add missed features
...
Diffstat (limited to 'arch/mips/econet/init.c')
| -rw-r--r-- | arch/mips/econet/init.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/arch/mips/econet/init.c b/arch/mips/econet/init.c new file mode 100644 index 000000000..ae45b8788 --- /dev/null +++ b/arch/mips/econet/init.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * EcoNet setup code + * + * Copyright (C) 2025 Caleb James DeLisle <cjd@cjdns.fr> + */ + +#include <linux/init.h> +#include <linux/of_clk.h> +#include <linux/irqchip.h> + +#include <asm/addrspace.h> +#include <asm/io.h> +#include <asm/bootinfo.h> +#include <asm/time.h> +#include <asm/prom.h> +#include <asm/smp-ops.h> +#include <asm/reboot.h> + +#define CR_AHB_RSTCR ((void __iomem *)CKSEG1ADDR(0x1fb00040)) +#define RESET BIT(31) + +#define UART_BASE CKSEG1ADDR(0x1fbf0003) +#define UART_REG_SHIFT 2 + +static void hw_reset(char *command) +{ + iowrite32(RESET, CR_AHB_RSTCR); +} + +/* + * vsmp_init_secondary expects either GIC or cascading interrupt configuration. + * The EN751221 is a 34Kc with VEIC, but not GIC compatible. The cascading + * configuration enables lines 6 and 7 for performance counters, but when this + * is done on the EN751221 intc with VEIC enabled, it causes the whole intc to + * stop sending interrupts. + * Only unmask lines 0 and 1 (software interrupts) in init_secondary. + */ +#ifdef CONFIG_MIPS_MT_SMP +extern const struct plat_smp_ops vsmp_smp_ops; +static struct plat_smp_ops en75_smp_ops __ro_after_init; + +static void en751221_init_secondary(void) +{ + write_c0_status((read_c0_status() & ~ST0_IM) | + (STATUSF_IP0 | STATUSF_IP1)); +} + +static int __init en751221_register_vsmp_smp_ops(void) +{ + if (!cpu_has_mipsmt) + return -ENODEV; + + en75_smp_ops = vsmp_smp_ops; + en75_smp_ops.init_secondary = en751221_init_secondary; + register_smp_ops(&en75_smp_ops); + return 0; +} +#else +static int __init en751221_register_vsmp_smp_ops(void) +{ + return -ENODEV; +} +#endif /* CONFIG_MIPS_MT_SMP */ + +/* 1. Bring up early printk. */ +void __init prom_init(void) +{ + setup_8250_early_printk_port(UART_BASE, UART_REG_SHIFT, 0); + _machine_restart = hw_reset; +} + +/* 2. Parse the DT and find memory */ +void __init plat_mem_setup(void) +{ + void *dtb; + + set_io_port_base(KSEG1); + + dtb = get_fdt(); + if (!dtb) + panic("no dtb found"); + + __dt_setup_arch(dtb); + + early_init_dt_scan_memory(); +} + +/* 3. Overload __weak device_tree_init(), add SMP ops */ +void __init device_tree_init(void) +{ + unflatten_and_copy_device_tree(); + + /* EN751221 dual-vpe */ + if (!en751221_register_vsmp_smp_ops()) + return; + + /* EN751221 with MT_SMP disabled */ + register_up_smp_ops(); +} + +const char *get_system_type(void) +{ + return "EcoNet-EN75xx"; +} + +/* 4. Initialize the IRQ subsystem */ +void __init arch_init_irq(void) +{ + irqchip_init(); +} + +/* 5. Timers */ +void __init plat_time_init(void) +{ + of_clk_init(NULL); + timer_probe(); +} |
