KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted

Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.

Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>

58 files changed, 12999 insertions, 0 deletions

diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
new file mode 100644
index 000000000..2a724aa66
--- /dev/null
+++ b/arch/arm/mach-omap1/Kconfig
@@ -0,0 +1,164 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menuconfig ARCH_OMAP1
+	bool "TI OMAP1"
+	depends on ARCH_MULTI_V4T || ARCH_MULTI_V5
+	depends on CPU_LITTLE_ENDIAN
+	depends on ATAGS
+	select ARCH_OMAP
+	select CLKSRC_MMIO
+	select FORCE_PCI if PCCARD
+	select GENERIC_IRQ_CHIP
+	select GPIOLIB
+	help
+	  Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
+
+if ARCH_OMAP1
+
+menu "TI OMAP1 specific features"
+
+comment "OMAP Core Type"
+
+config ARCH_OMAP15XX
+	depends on ARCH_MULTI_V4T
+	default y
+	bool "OMAP15xx Based System"
+	select CPU_ARM925T
+	select OMAP_MPU_TIMER
+
+config ARCH_OMAP16XX
+	depends on ARCH_MULTI_V5
+	bool "OMAP16xx Based System"
+	select ARCH_OMAP_OTG
+	select CPU_ARM926T
+	select OMAP_DM_TIMER
+
+config ARCH_OMAP
+	bool
+
+comment "OMAP Feature Selections"
+
+config OMAP_MUX
+	bool "OMAP multiplexing support"
+	default y
+	help
+	  Pin multiplexing support for OMAP boards. If your bootloader
+	  sets the multiplexing correctly, say N. Otherwise, or if unsure,
+	  say Y.
+
+config OMAP_MUX_DEBUG
+	bool "Multiplexing debug output"
+	depends on OMAP_MUX
+	help
+	  Makes the multiplexing functions print out a lot of debug info.
+	  This is useful if you want to find out the correct values of the
+	  multiplexing registers.
+
+config OMAP_MUX_WARNINGS
+	bool "Warn about pins the bootloader didn't set up"
+	depends on OMAP_MUX
+	default y
+	help
+	  Choose Y here to warn whenever driver initialization logic needs
+	  to change the pin multiplexing setup.	 When there are no warnings
+	  printed, it's safe to deselect OMAP_MUX for your product.
+
+config OMAP_32K_TIMER
+	bool "Use 32KHz timer"
+	depends on ARCH_OMAP16XX
+	default ARCH_OMAP16XX
+	help
+	  Select this option if you want to enable the OMAP 32KHz timer.
+	  This timer saves power compared to the OMAP_MPU_TIMER, and has
+	  support for no tick during idle. The 32KHz timer provides less
+	  intra-tick resolution than OMAP_MPU_TIMER. The 32KHz timer is
+	  currently only available for OMAP16XX, 24XX, 34XX, OMAP4/5 and DRA7XX.
+
+	  On OMAP2PLUS this value is only used for CONFIG_HZ and
+	  timer frequency compile time calculation.
+	  The actual timer selection is done in the board file
+	  through the (DT_)MACHINE_START structure.
+
+config OMAP_MPU_TIMER
+	bool "Use mpu timer"
+	depends on ARCH_OMAP1
+	help
+	  Select this option if you want to use the OMAP mpu timer. This
+	  timer provides more intra-tick resolution than the 32KHz timer,
+	  but consumes more power.
+
+config OMAP_SERIAL_WAKE
+	bool "Enable wake-up events for serial ports"
+	depends on ARCH_OMAP1 && OMAP_MUX
+	default y
+	help
+	  Select this option if you want to have your system wake up
+	  to data on the serial RX line. This allows you to wake the
+	  system from serial console.
+
+config OMAP_RESET_CLOCKS
+	bool "Reset unused clocks during boot"
+	depends on ARCH_OMAP
+	help
+	  Say Y if you want to reset unused clocks during boot.
+	  This option saves power, but assumes all drivers are
+	  using the clock framework. Broken drivers that do not
+	  yet use clock framework may not work with this option.
+	  If you are booting from another operating system, you
+	  probably do not want this option enabled until your
+	  device drivers work properly.
+
+config ARCH_OMAP_OTG
+	bool
+
+comment "OMAP Board Type"
+
+config MACH_OMAP_OSK
+	bool "TI OSK Support"
+	depends on ARCH_OMAP16XX
+	help
+	  TI OMAP 5912 OSK (OMAP Starter Kit) board support. Say Y here
+	  if you have such a board.
+
+config MACH_OMAP_PALMTE
+	bool "Palm Tungsten E"
+	depends on ARCH_OMAP15XX
+	help
+	  Support for the Palm Tungsten E PDA.  To boot the kernel, you'll
+	  need a PalmOS compatible bootloader; check out
+	  http://palmtelinux.sourceforge.net/ for more information.
+	  Say Y here if you have this PDA model, say N otherwise.
+
+config MACH_SX1
+	bool "Siemens SX1"
+	depends on ARCH_OMAP15XX
+	select I2C
+	help
+	  Support for the Siemens SX1 phone. To boot the kernel,
+	  you'll need a SX1 compatible bootloader; check out
+	  http://forum.oslik.ru and
+	  https://www.handhelds.org/moin/moin.cgi/SiemensSX1
+	  for more information.
+	  Say Y here if you have such a phone, say NO otherwise.
+
+config MACH_NOKIA770
+	bool "Nokia 770"
+	depends on ARCH_OMAP16XX
+	help
+	  Support for the Nokia 770 Internet Tablet. Say Y here if you
+	  have such a device.
+
+config MACH_AMS_DELTA
+	bool "Amstrad E3 (Delta)"
+	depends on ARCH_OMAP15XX
+	select FIQ
+	select GPIO_GENERIC_PLATFORM
+	select LEDS_GPIO_REGISTER
+	select REGULATOR
+	select REGULATOR_FIXED_VOLTAGE
+	help
+	  Support for the Amstrad E3 (codename Delta) videophone. Say Y here
+	  if you have such a device.
+
+endmenu
+
+endif
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
new file mode 100644
index 000000000..d9e251ea4
--- /dev/null
+++ b/arch/arm/mach-omap1/Makefile
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the linux kernel.
+#
+
+# Common support
+obj-y := io.o id.o sram-init.o sram.o time.o irq.o mux.o flash.o \
+	 serial.o devices.o dma.o omap-dma.o fb.o
+obj-y += clock.o clock_data.o opp_data.o reset.o pm_bus.o timer.o
+
+ifneq ($(CONFIG_SND_SOC_OMAP_MCBSP),)
+obj-y += mcbsp.o
+endif
+
+obj-$(CONFIG_OMAP_32K_TIMER)	+= timer32k.o
+
+# OCPI interconnect support for 1710, 1610 and 5912
+obj-$(CONFIG_ARCH_OMAP16XX) += ocpi.o
+
+# Power Management
+obj-$(CONFIG_PM) += pm.o sleep.o
+
+i2c-omap-$(CONFIG_I2C_OMAP)		:= i2c.o
+obj-y					+= $(i2c-omap-m) $(i2c-omap-y)
+
+led-y := leds.o
+
+usb-fs-$(CONFIG_USB_SUPPORT)		:= usb.o
+obj-y					+= $(usb-fs-m) $(usb-fs-y)
+
+# Specific board support
+obj-$(CONFIG_MACH_OMAP_OSK)		+= board-osk.o
+obj-$(CONFIG_MACH_OMAP_PALMTE)		+= board-palmte.o
+obj-$(CONFIG_MACH_NOKIA770)		+= board-nokia770.o
+obj-$(CONFIG_MACH_AMS_DELTA)		+= board-ams-delta.o ams-delta-fiq.o \
+					   ams-delta-fiq-handler.o
+obj-$(CONFIG_MACH_SX1)			+= board-sx1.o board-sx1-mmc.o
+
+# GPIO
+obj-$(CONFIG_ARCH_OMAP15XX)		+= gpio15xx.o
+obj-$(CONFIG_ARCH_OMAP16XX)		+= gpio16xx.o
diff --git a/arch/arm/mach-omap1/ams-delta-fiq-handler.S b/arch/arm/mach-omap1/ams-delta-fiq-handler.S
new file mode 100644
index 000000000..5cf6fcca6
--- /dev/null
+++ b/arch/arm/mach-omap1/ams-delta-fiq-handler.S
@@ -0,0 +1,275 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/arch/arm/mach-omap1/ams-delta-fiq-handler.S
+ *
+ *  Based on  linux/arch/arm/lib/floppydma.S
+ *  Renamed and modified to work with 2.6 kernel by Matt Callow
+ *  Copyright (C) 1995, 1996 Russell King
+ *  Copyright (C) 2004 Pete Trapps
+ *  Copyright (C) 2006 Matt Callow
+ *  Copyright (C) 2010 Janusz Krzysztofik
+ */
+
+#include <linux/linkage.h>
+#include <linux/platform_data/ams-delta-fiq.h>
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <asm/assembler.h>
+#include <asm/irq.h>
+
+#include "hardware.h"
+#include "ams-delta-fiq.h"
+#include "board-ams-delta.h"
+#include "iomap.h"
+
+/*
+ * OMAP1510 GPIO related symbol copied from arch/arm/mach-omap1/gpio15xx.c.
+ * Unfortunately, it was not placed in a separate header file.
+ */
+#define OMAP1510_GPIO_BASE		0xFFFCE000
+
+/* GPIO register bitmasks */
+#define KEYBRD_DATA_MASK		(0x1 << AMS_DELTA_GPIO_PIN_KEYBRD_DATA)
+#define KEYBRD_CLK_MASK			(0x1 << AMS_DELTA_GPIO_PIN_KEYBRD_CLK)
+#define MODEM_IRQ_MASK			(0x1 << AMS_DELTA_GPIO_PIN_MODEM_IRQ)
+#define HOOK_SWITCH_MASK		(0x1 << AMS_DELTA_GPIO_PIN_HOOK_SWITCH)
+#define OTHERS_MASK			(MODEM_IRQ_MASK | HOOK_SWITCH_MASK)
+
+/* IRQ handler register bitmasks */
+#define DEFERRED_FIQ_MASK		OMAP_IRQ_BIT(INT_DEFERRED_FIQ)
+#define GPIO_BANK1_MASK  		OMAP_IRQ_BIT(INT_GPIO_BANK1)
+
+/* Driver buffer byte offsets */
+#define BUF_MASK			(FIQ_MASK * 4)
+#define BUF_STATE			(FIQ_STATE * 4)
+#define BUF_KEYS_CNT			(FIQ_KEYS_CNT * 4)
+#define BUF_TAIL_OFFSET			(FIQ_TAIL_OFFSET * 4)
+#define BUF_HEAD_OFFSET			(FIQ_HEAD_OFFSET * 4)
+#define BUF_BUF_LEN			(FIQ_BUF_LEN * 4)
+#define BUF_KEY				(FIQ_KEY * 4)
+#define BUF_MISSED_KEYS			(FIQ_MISSED_KEYS * 4)
+#define BUF_BUFFER_START		(FIQ_BUFFER_START * 4)
+#define BUF_GPIO_INT_MASK		(FIQ_GPIO_INT_MASK * 4)
+#define BUF_KEYS_HICNT			(FIQ_KEYS_HICNT * 4)
+#define BUF_IRQ_PEND			(FIQ_IRQ_PEND * 4)
+#define BUF_SIR_CODE_L1			(FIQ_SIR_CODE_L1 * 4)
+#define BUF_SIR_CODE_L2			(IRQ_SIR_CODE_L2 * 4)
+#define BUF_CNT_INT_00			(FIQ_CNT_INT_00 * 4)
+#define BUF_CNT_INT_KEY			(FIQ_CNT_INT_KEY * 4)
+#define BUF_CNT_INT_MDM			(FIQ_CNT_INT_MDM * 4)
+#define BUF_CNT_INT_03			(FIQ_CNT_INT_03 * 4)
+#define BUF_CNT_INT_HSW			(FIQ_CNT_INT_HSW * 4)
+#define BUF_CNT_INT_05			(FIQ_CNT_INT_05 * 4)
+#define BUF_CNT_INT_06			(FIQ_CNT_INT_06 * 4)
+#define BUF_CNT_INT_07			(FIQ_CNT_INT_07 * 4)
+#define BUF_CNT_INT_08			(FIQ_CNT_INT_08 * 4)
+#define BUF_CNT_INT_09			(FIQ_CNT_INT_09 * 4)
+#define BUF_CNT_INT_10			(FIQ_CNT_INT_10 * 4)
+#define BUF_CNT_INT_11			(FIQ_CNT_INT_11 * 4)
+#define BUF_CNT_INT_12			(FIQ_CNT_INT_12 * 4)
+#define BUF_CNT_INT_13			(FIQ_CNT_INT_13 * 4)
+#define BUF_CNT_INT_14			(FIQ_CNT_INT_14 * 4)
+#define BUF_CNT_INT_15			(FIQ_CNT_INT_15 * 4)
+#define BUF_CIRC_BUFF			(FIQ_CIRC_BUFF * 4)
+
+
+/*
+ * Register usage
+ * r8  - temporary
+ * r9  - the driver buffer
+ * r10 - temporary
+ * r11 - interrupts mask
+ * r12 - base pointers
+ * r13 - interrupts status
+ */
+
+	.text
+
+	.global qwerty_fiqin_end
+
+ENTRY(qwerty_fiqin_start)
+	@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+	@ FIQ intrrupt handler
+	ldr r12, omap_ih1_base			@ set pointer to level1 handler
+
+	ldr r11, [r12, #IRQ_MIR_REG_OFFSET]	@ fetch interrupts mask
+
+	ldr r13, [r12, #IRQ_ITR_REG_OFFSET]	@ fetch interrupts status
+	bics r13, r13, r11			@ clear masked - any left?
+	beq .Lexit				@ none - spurious FIQ? exit
+
+	ldr r10, [r12, #IRQ_SIR_FIQ_REG_OFFSET]	@ get requested interrupt number
+
+	mov r8, #2				@ reset FIQ agreement
+	str r8, [r12, #IRQ_CONTROL_REG_OFFSET]
+
+	cmp r10, #(INT_GPIO_BANK1 - NR_IRQS_LEGACY)	@ is it GPIO interrupt?
+	beq .Lgpio				@ yes - process it
+
+	mov r8, #1
+	orr r8, r11, r8, lsl r10		@ mask spurious interrupt
+	str r8, [r12, #IRQ_MIR_REG_OFFSET]
+.Lexit:
+	subs	pc, lr, #4			@ return from FIQ
+	@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+
+
+	@@@@@@@@@@@@@@@@@@@@@@@@@@@
+.Lgpio:	@ GPIO bank interrupt handler
+	ldr r12, omap1510_gpio_base		@ set base pointer to GPIO bank
+
+	ldr r11, [r12, #OMAP1510_GPIO_INT_MASK]	@ fetch GPIO interrupts mask
+.Lrestart:
+	ldr r13, [r12, #OMAP1510_GPIO_INT_STATUS]	@ fetch status bits
+	bics r13, r13, r11			@ clear masked - any left?
+	beq .Lexit				@ no - spurious interrupt? exit
+
+	orr r11, r11, r13			@ mask all requested interrupts
+	str r11, [r12, #OMAP1510_GPIO_INT_MASK]
+
+	str r13, [r12, #OMAP1510_GPIO_INT_STATUS] @ ack all requested interrupts
+
+	ands r10, r13, #KEYBRD_CLK_MASK		@ extract keyboard status - set?
+	beq .Lhksw				@ no - try next source
+
+
+	@@@@@@@@@@@@@@@@@@@@@@
+	@ Keyboard clock FIQ mode interrupt handler
+	@ r10 now contains KEYBRD_CLK_MASK, use it
+	bic r11, r11, r10				@ unmask it
+	str r11, [r12, #OMAP1510_GPIO_INT_MASK]
+
+	@ Process keyboard data
+	ldr r8, [r12, #OMAP1510_GPIO_DATA_INPUT]	@ fetch GPIO input
+
+	ldr r10, [r9, #BUF_STATE]		@ fetch kbd interface state
+	cmp r10, #0				@ are we expecting start bit?
+	bne .Ldata				@ no - go to data processing
+
+	ands r8, r8, #KEYBRD_DATA_MASK		@ check start bit - detected?
+	beq .Lhksw				@ no - try next source
+
+	@ r8 contains KEYBRD_DATA_MASK, use it
+	str r8, [r9, #BUF_STATE]		@ enter data processing state
+	@ r10 already contains 0, reuse it
+	str r10, [r9, #BUF_KEY]			@ clear keycode
+	mov r10, #2				@ reset input bit mask
+	str r10, [r9, #BUF_MASK]
+
+	@ Mask other GPIO line interrupts till key done
+	str r11, [r9, #BUF_GPIO_INT_MASK]	@ save mask for later restore
+	mvn r11, #KEYBRD_CLK_MASK		@ prepare all except kbd mask
+	str r11, [r12, #OMAP1510_GPIO_INT_MASK]	@ store into the mask register
+
+	b .Lrestart				@ restart
+
+.Ldata:	ldr r10, [r9, #BUF_MASK]		@ fetch current input bit mask
+
+	@ r8 still contains GPIO input bits
+	ands r8, r8, #KEYBRD_DATA_MASK		@ is keyboard data line low?
+	ldreq r8, [r9, #BUF_KEY]		@ yes - fetch collected so far,
+	orreq r8, r8, r10			@ set 1 at current mask position
+	streq r8, [r9, #BUF_KEY]		@ and save back
+
+	mov r10, r10, lsl #1			@ shift mask left
+	bics r10, r10, #0x800			@ have we got all the bits?
+	strne r10, [r9, #BUF_MASK]		@ not yet - store the mask
+	bne .Lrestart				@ and restart
+
+	@ r10 already contains 0, reuse it
+	str r10, [r9, #BUF_STATE]		@ reset state to start
+
+	@ Key done - restore interrupt mask
+	ldr r10, [r9, #BUF_GPIO_INT_MASK]	@ fetch saved mask
+	and r11, r11, r10			@ unmask all saved as unmasked
+	str r11, [r12, #OMAP1510_GPIO_INT_MASK]	@ restore into the mask register
+
+	@ Try appending the keycode to the circular buffer
+	ldr r10, [r9, #BUF_KEYS_CNT]		@ get saved keystrokes count
+	ldr r8, [r9, #BUF_BUF_LEN]		@ get buffer size
+	cmp r10, r8				@ is buffer full?
+	beq .Lhksw				@ yes - key lost, next source
+
+	add r10, r10, #1			@ incremet keystrokes counter
+	str r10, [r9, #BUF_KEYS_CNT]
+
+	ldr r10, [r9, #BUF_TAIL_OFFSET]		@ get buffer tail offset
+	@ r8 already contains buffer size
+	cmp r10, r8				@ end of buffer?
+	moveq r10, #0				@ yes - rewind to buffer start
+
+	ldr r12, [r9, #BUF_BUFFER_START]	@ get buffer start address
+	add r12, r12, r10, LSL #2		@ calculate buffer tail address
+	ldr r8, [r9, #BUF_KEY]			@ get last keycode
+	str r8, [r12]				@ append it to the buffer tail
+
+	add r10, r10, #1			@ increment buffer tail offset
+	str r10, [r9, #BUF_TAIL_OFFSET]
+
+	ldr r10, [r9, #BUF_CNT_INT_KEY]		@ increment interrupts counter
+	add r10, r10, #1
+	str r10, [r9, #BUF_CNT_INT_KEY]
+	@@@@@@@@@@@@@@@@@@@@@@@@
+
+
+.Lhksw:	@Is hook switch interrupt requested?
+	tst r13, #HOOK_SWITCH_MASK 		@ is hook switch status bit set?
+	beq .Lmdm				@ no - try next source
+
+
+	@@@@@@@@@@@@@@@@@@@@@@@@
+	@ Hook switch interrupt FIQ mode simple handler
+
+	@ Don't toggle active edge, the switch always bounces
+
+	@ Increment hook switch interrupt counter
+	ldr r10, [r9, #BUF_CNT_INT_HSW]
+	add r10, r10, #1
+	str r10, [r9, #BUF_CNT_INT_HSW]
+	@@@@@@@@@@@@@@@@@@@@@@@@
+
+
+.Lmdm:	@Is it a modem interrupt?
+	tst r13, #MODEM_IRQ_MASK 		@ is modem status bit set?
+	beq .Lirq				@ no - check for next interrupt
+
+
+	@@@@@@@@@@@@@@@@@@@@@@@@
+	@ Modem FIQ mode interrupt handler stub
+
+	@ Increment modem interrupt counter
+	ldr r10, [r9, #BUF_CNT_INT_MDM]
+	add r10, r10, #1
+	str r10, [r9, #BUF_CNT_INT_MDM]
+	@@@@@@@@@@@@@@@@@@@@@@@@
+
+
+.Lirq:	@ Place deferred_fiq interrupt request
+	ldr r12, deferred_fiq_ih_base		@ set pointer to IRQ handler
+	mov r10, #DEFERRED_FIQ_MASK		@ set deferred_fiq bit
+	str r10, [r12, #IRQ_ISR_REG_OFFSET] 	@ place it in the ISR register
+
+	ldr r12, omap1510_gpio_base		@ set pointer back to GPIO bank
+	b .Lrestart				@ check for next GPIO interrupt
+	@@@@@@@@@@@@@@@@@@@@@@@@@@@
+
+
+/*
+ * Virtual addresses for IO
+ */
+omap_ih1_base:
+	.word OMAP1_IO_ADDRESS(OMAP_IH1_BASE)
+deferred_fiq_ih_base:
+	.word OMAP1_IO_ADDRESS(DEFERRED_FIQ_IH_BASE)
+omap1510_gpio_base:
+	.word OMAP1_IO_ADDRESS(OMAP1510_GPIO_BASE)
+qwerty_fiqin_end:
+
+/*
+ * Check the size of the FIQ,
+ * it cannot go beyond 0xffff0200, and is copied to 0xffff001c
+ */
+.if (qwerty_fiqin_end - qwerty_fiqin_start) > (0x200 - 0x1c)
+	.err
+.endif
diff --git a/arch/arm/mach-omap1/ams-delta-fiq.c b/arch/arm/mach-omap1/ams-delta-fiq.c
new file mode 100644
index 000000000..1f5852be0
--- /dev/null
+++ b/arch/arm/mach-omap1/ams-delta-fiq.c
@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Amstrad E3 FIQ handling
+ *
+ *  Copyright (C) 2009 Janusz Krzysztofik
+ *  Copyright (c) 2006 Matt Callow
+ *  Copyright (c) 2004 Amstrad Plc
+ *  Copyright (C) 2001 RidgeRun, Inc.
+ *
+ * Parts of this code are taken from linux/arch/arm/mach-omap/irq.c
+ * in the MontaVista 2.4 kernel (and the Amstrad changes therein)
+ */
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/machine.h>
+#include <linux/gpio/driver.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/platform_data/ams-delta-fiq.h>
+#include <linux/platform_device.h>
+
+#include <asm/fiq.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include "hardware.h"
+#include "ams-delta-fiq.h"
+#include "board-ams-delta.h"
+
+static struct fiq_handler fh = {
+	.name	= "ams-delta-fiq"
+};
+
+/*
+ * This buffer is shared between FIQ and IRQ contexts.
+ * The FIQ and IRQ isrs can both read and write it.
+ * It is structured as a header section several 32bit slots,
+ * followed by the circular buffer where the FIQ isr stores
+ * keystrokes received from the qwerty keyboard.  See
+ * <linux/platform_data/ams-delta-fiq.h> for details of offsets.
+ */
+static unsigned int fiq_buffer[1024];
+
+static struct irq_chip *irq_chip;
+static struct irq_data *irq_data[16];
+static unsigned int irq_counter[16];
+
+static const char *pin_name[16] __initconst = {
+	[AMS_DELTA_GPIO_PIN_KEYBRD_DATA]	= "keybrd_data",
+	[AMS_DELTA_GPIO_PIN_KEYBRD_CLK]		= "keybrd_clk",
+};
+
+static irqreturn_t deferred_fiq(int irq, void *dev_id)
+{
+	struct irq_data *d;
+	int gpio, irq_num, fiq_count;
+
+	/*
+	 * For each handled GPIO interrupt, keep calling its interrupt handler
+	 * until the IRQ counter catches the FIQ incremented interrupt counter.
+	 */
+	for (gpio = AMS_DELTA_GPIO_PIN_KEYBRD_CLK;
+			gpio <= AMS_DELTA_GPIO_PIN_HOOK_SWITCH; gpio++) {
+		d = irq_data[gpio];
+		irq_num = d->irq;
+		fiq_count = fiq_buffer[FIQ_CNT_INT_00 + gpio];
+
+		if (irq_counter[gpio] < fiq_count &&
+				gpio != AMS_DELTA_GPIO_PIN_KEYBRD_CLK) {
+			/*
+			 * handle_simple_irq() that OMAP GPIO edge
+			 * interrupts default to since commit 80ac93c27441
+			 * requires interrupt already acked and unmasked.
+			 */
+			if (!WARN_ON_ONCE(!irq_chip->irq_unmask))
+				irq_chip->irq_unmask(d);
+		}
+		for (; irq_counter[gpio] < fiq_count; irq_counter[gpio]++)
+			generic_handle_irq(irq_num);
+	}
+	return IRQ_HANDLED;
+}
+
+void __init ams_delta_init_fiq(struct gpio_chip *chip,
+			       struct platform_device *serio)
+{
+	struct gpio_desc *gpiod, *data = NULL, *clk = NULL;
+	void *fiqhandler_start;
+	unsigned int fiqhandler_length;
+	struct pt_regs FIQ_regs;
+	unsigned long val, offset;
+	int i, retval;
+
+	/* Store irq_chip location for IRQ handler use */
+	irq_chip = chip->irq.chip;
+	if (!irq_chip) {
+		pr_err("%s: GPIO chip %s is missing IRQ function\n", __func__,
+		       chip->label);
+		return;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(irq_data); i++) {
+		gpiod = gpiochip_request_own_desc(chip, i, pin_name[i],
+						  GPIO_ACTIVE_HIGH, GPIOD_IN);
+		if (IS_ERR(gpiod)) {
+			pr_err("%s: failed to get GPIO pin %d (%ld)\n",
+			       __func__, i, PTR_ERR(gpiod));
+			return;
+		}
+		/* Store irq_data location for IRQ handler use */
+		irq_data[i] = irq_get_irq_data(gpiod_to_irq(gpiod));
+
+		/*
+		 * FIQ handler takes full control over serio data and clk GPIO
+		 * pins.  Initialize them and keep requested so nobody can
+		 * interfere.  Fail if any of those two couldn't be requested.
+		 */
+		switch (i) {
+		case AMS_DELTA_GPIO_PIN_KEYBRD_DATA:
+			data = gpiod;
+			gpiod_direction_input(data);
+			break;
+		case AMS_DELTA_GPIO_PIN_KEYBRD_CLK:
+			clk = gpiod;
+			gpiod_direction_input(clk);
+			break;
+		default:
+			gpiochip_free_own_desc(gpiod);
+			break;
+		}
+	}
+	if (!data || !clk)
+		goto out_gpio;
+
+	fiqhandler_start = &qwerty_fiqin_start;
+	fiqhandler_length = &qwerty_fiqin_end - &qwerty_fiqin_start;
+	pr_info("Installing fiq handler from %p, length 0x%x\n",
+			fiqhandler_start, fiqhandler_length);
+
+	retval = claim_fiq(&fh);
+	if (retval) {
+		pr_err("ams_delta_init_fiq(): couldn't claim FIQ, ret=%d\n",
+				retval);
+		goto out_gpio;
+	}
+
+	retval = request_irq(INT_DEFERRED_FIQ, deferred_fiq,
+			IRQ_TYPE_EDGE_RISING, "deferred_fiq", NULL);
+	if (retval < 0) {
+		pr_err("Failed to get deferred_fiq IRQ, ret=%d\n", retval);
+		release_fiq(&fh);
+		goto out_gpio;
+	}
+	/*
+	 * Since no set_type() method is provided by OMAP irq chip,
+	 * switch to edge triggered interrupt type manually.
+	 */
+	offset = IRQ_ILR0_REG_OFFSET +
+			((INT_DEFERRED_FIQ - NR_IRQS_LEGACY) & 0x1f) * 0x4;
+	val = omap_readl(DEFERRED_FIQ_IH_BASE + offset) & ~(1 << 1);
+	omap_writel(val, DEFERRED_FIQ_IH_BASE + offset);
+
+	set_fiq_handler(fiqhandler_start, fiqhandler_length);
+
+	/*
+	 * Initialise the buffer which is shared
+	 * between FIQ mode and IRQ mode
+	 */
+	fiq_buffer[FIQ_GPIO_INT_MASK]	= 0;
+	fiq_buffer[FIQ_MASK]		= 0;
+	fiq_buffer[FIQ_STATE]		= 0;
+	fiq_buffer[FIQ_KEY]		= 0;
+	fiq_buffer[FIQ_KEYS_CNT]	= 0;
+	fiq_buffer[FIQ_KEYS_HICNT]	= 0;
+	fiq_buffer[FIQ_TAIL_OFFSET]	= 0;
+	fiq_buffer[FIQ_HEAD_OFFSET]	= 0;
+	fiq_buffer[FIQ_BUF_LEN]		= 256;
+	fiq_buffer[FIQ_MISSED_KEYS]	= 0;
+	fiq_buffer[FIQ_BUFFER_START]	=
+			(unsigned int) &fiq_buffer[FIQ_CIRC_BUFF];
+
+	for (i = FIQ_CNT_INT_00; i <= FIQ_CNT_INT_15; i++)
+		fiq_buffer[i] = 0;
+
+	/*
+	 * FIQ mode r9 always points to the fiq_buffer, because the FIQ isr
+	 * will run in an unpredictable context. The fiq_buffer is the FIQ isr's
+	 * only means of communication with the IRQ level and other kernel
+	 * context code.
+	 */
+	FIQ_regs.ARM_r9 = (unsigned int)fiq_buffer;
+	set_fiq_regs(&FIQ_regs);
+
+	pr_info("request_fiq(): fiq_buffer = %p\n", fiq_buffer);
+
+	/*
+	 * Redirect GPIO interrupts to FIQ
+	 */
+	offset = IRQ_ILR0_REG_OFFSET + (INT_GPIO_BANK1 - NR_IRQS_LEGACY) * 0x4;
+	val = omap_readl(OMAP_IH1_BASE + offset) | 1;
+	omap_writel(val, OMAP_IH1_BASE + offset);
+
+	/* Initialize serio device IRQ resource and platform_data */
+	serio->resource[0].start = gpiod_to_irq(clk);
+	serio->resource[0].end = serio->resource[0].start;
+	serio->dev.platform_data = fiq_buffer;
+
+	/*
+	 * Since FIQ handler performs handling of GPIO registers for
+	 * "keybrd_clk" IRQ pin, ams_delta_serio driver used to set
+	 * handle_simple_irq() as active IRQ handler for that pin to avoid
+	 * bad interaction with gpio-omap driver.  This is no longer needed
+	 * as handle_simple_irq() is now the default handler for OMAP GPIO
+	 * edge interrupts.
+	 * This comment replaces the obsolete code which has been removed
+	 * from the ams_delta_serio driver and stands here only as a reminder
+	 * of that dependency on gpio-omap driver behavior.
+	 */
+
+	return;
+
+out_gpio:
+	if (data)
+		gpiochip_free_own_desc(data);
+	if (clk)
+		gpiochip_free_own_desc(clk);
+}
diff --git a/arch/arm/mach-omap1/ams-delta-fiq.h b/arch/arm/mach-omap1/ams-delta-fiq.h
new file mode 100644
index 000000000..7f843caed
--- /dev/null
+++ b/arch/arm/mach-omap1/ams-delta-fiq.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * arch/arm/mach-omap1/ams-delta-fiq.h
+ *
+ * Taken from the original Amstrad modifications to fiq.h
+ *
+ * Copyright (c) 2004 Amstrad Plc
+ * Copyright (c) 2006 Matt Callow
+ * Copyright (c) 2010 Janusz Krzysztofik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __AMS_DELTA_FIQ_H
+#define __AMS_DELTA_FIQ_H
+
+#include "irqs.h"
+
+/*
+ * Interrupt number used for passing control from FIQ to IRQ.
+ * IRQ12, described as reserved, has been selected.
+ */
+#define INT_DEFERRED_FIQ	INT_1510_RES12
+/*
+ * Base address of an interrupt handler that the INT_DEFERRED_FIQ belongs to.
+ */
+#if (INT_DEFERRED_FIQ < IH2_BASE)
+#define DEFERRED_FIQ_IH_BASE	OMAP_IH1_BASE
+#else
+#define DEFERRED_FIQ_IH_BASE	OMAP_IH2_BASE
+#endif
+
+#ifndef __ASSEMBLER__
+extern unsigned char qwerty_fiqin_start, qwerty_fiqin_end;
+
+extern void __init ams_delta_init_fiq(struct gpio_chip *chip,
+				      struct platform_device *pdev);
+#endif
+
+#endif
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
new file mode 100644
index 000000000..1bec4fa0b
--- /dev/null
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -0,0 +1,873 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/board-ams-delta.c
+ *
+ * Modified from board-generic.c
+ *
+ * Board specific inits for the Amstrad E3 (codename Delta) videophone
+ *
+ * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
+ */
+#include <linux/gpio/driver.h>
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/leds.h>
+#include <linux/mtd/nand-gpio.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+#include <linux/serial_8250.h>
+#include <linux/export.h>
+#include <linux/omapfb.h>
+#include <linux/io.h>
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/soc/ti/omap1-mux.h>
+
+#include <asm/serial.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <linux/platform_data/keypad-omap.h>
+
+#include "hardware.h"
+#include "usb.h"
+#include "ams-delta-fiq.h"
+#include "board-ams-delta.h"
+#include "iomap.h"
+#include "common.h"
+
+static const unsigned int ams_delta_keymap[] = {
+	KEY(0, 0, KEY_F1),		/* Advert    */
+
+	KEY(0, 3, KEY_COFFEE),		/* Games     */
+	KEY(0, 2, KEY_QUESTION),	/* Directory */
+	KEY(2, 3, KEY_CONNECT),		/* Internet  */
+	KEY(1, 2, KEY_SHOP),		/* Services  */
+	KEY(1, 1, KEY_PHONE),		/* VoiceMail */
+
+	KEY(0, 1, KEY_DELETE),		/* Delete    */
+	KEY(2, 2, KEY_PLAY),		/* Play      */
+	KEY(1, 0, KEY_PAGEUP),		/* Up        */
+	KEY(1, 3, KEY_PAGEDOWN),	/* Down      */
+	KEY(2, 0, KEY_EMAIL),		/* ReadEmail */
+	KEY(2, 1, KEY_STOP),		/* Stop      */
+
+	/* Numeric keypad portion */
+	KEY(0, 7, KEY_KP1),
+	KEY(0, 6, KEY_KP2),
+	KEY(0, 5, KEY_KP3),
+	KEY(1, 7, KEY_KP4),
+	KEY(1, 6, KEY_KP5),
+	KEY(1, 5, KEY_KP6),
+	KEY(2, 7, KEY_KP7),
+	KEY(2, 6, KEY_KP8),
+	KEY(2, 5, KEY_KP9),
+	KEY(3, 6, KEY_KP0),
+	KEY(3, 7, KEY_KPASTERISK),
+	KEY(3, 5, KEY_KPDOT),		/* # key     */
+	KEY(7, 2, KEY_NUMLOCK),		/* Mute      */
+	KEY(7, 1, KEY_KPMINUS),		/* Recall    */
+	KEY(6, 1, KEY_KPPLUS),		/* Redial    */
+	KEY(7, 6, KEY_KPSLASH),		/* Handsfree */
+	KEY(6, 0, KEY_ENTER),		/* Video     */
+
+	KEY(7, 4, KEY_CAMERA),		/* Photo     */
+
+	KEY(0, 4, KEY_F2),		/* Home      */
+	KEY(1, 4, KEY_F3),		/* Office    */
+	KEY(2, 4, KEY_F4),		/* Mobile    */
+	KEY(7, 7, KEY_F5),		/* SMS       */
+	KEY(7, 5, KEY_F6),		/* Email     */
+
+	/* QWERTY portion of keypad */
+	KEY(3, 4, KEY_Q),
+	KEY(3, 3, KEY_W),
+	KEY(3, 2, KEY_E),
+	KEY(3, 1, KEY_R),
+	KEY(3, 0, KEY_T),
+	KEY(4, 7, KEY_Y),
+	KEY(4, 6, KEY_U),
+	KEY(4, 5, KEY_I),
+	KEY(4, 4, KEY_O),
+	KEY(4, 3, KEY_P),
+
+	KEY(4, 2, KEY_A),
+	KEY(4, 1, KEY_S),
+	KEY(4, 0, KEY_D),
+	KEY(5, 7, KEY_F),
+	KEY(5, 6, KEY_G),
+	KEY(5, 5, KEY_H),
+	KEY(5, 4, KEY_J),
+	KEY(5, 3, KEY_K),
+	KEY(5, 2, KEY_L),
+
+	KEY(5, 1, KEY_Z),
+	KEY(5, 0, KEY_X),
+	KEY(6, 7, KEY_C),
+	KEY(6, 6, KEY_V),
+	KEY(6, 5, KEY_B),
+	KEY(6, 4, KEY_N),
+	KEY(6, 3, KEY_M),
+	KEY(6, 2, KEY_SPACE),
+
+	KEY(7, 0, KEY_LEFTSHIFT),	/* Vol up    */
+	KEY(7, 3, KEY_LEFTCTRL),	/* Vol down  */
+};
+
+#define LATCH1_PHYS	0x01000000
+#define LATCH1_VIRT	0xEA000000
+#define MODEM_PHYS	0x04000000
+#define MODEM_VIRT	0xEB000000
+#define LATCH2_PHYS	0x08000000
+#define LATCH2_VIRT	0xEC000000
+
+static struct map_desc ams_delta_io_desc[] __initdata = {
+	/* AMS_DELTA_LATCH1 */
+	{
+		.virtual	= LATCH1_VIRT,
+		.pfn		= __phys_to_pfn(LATCH1_PHYS),
+		.length		= 0x01000000,
+		.type		= MT_DEVICE
+	},
+	/* AMS_DELTA_LATCH2 */
+	{
+		.virtual	= LATCH2_VIRT,
+		.pfn		= __phys_to_pfn(LATCH2_PHYS),
+		.length		= 0x01000000,
+		.type		= MT_DEVICE
+	},
+	/* AMS_DELTA_MODEM */
+	{
+		.virtual	= MODEM_VIRT,
+		.pfn		= __phys_to_pfn(MODEM_PHYS),
+		.length		= 0x01000000,
+		.type		= MT_DEVICE
+	}
+};
+
+static const struct omap_lcd_config ams_delta_lcd_config __initconst = {
+	.ctrl_name	= "internal",
+};
+
+static struct omap_usb_config ams_delta_usb_config __initdata = {
+	.register_host	= 1,
+	.hmc_mode	= 16,
+	.pins[0]	= 2,
+};
+
+#define LATCH1_NGPIO		8
+
+static struct resource latch1_resources[] = {
+	[0] = {
+		.name	= "dat",
+		.start	= LATCH1_PHYS,
+		.end	= LATCH1_PHYS + (LATCH1_NGPIO - 1) / 8,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+#define LATCH1_LABEL	"latch1"
+
+static const struct property_entry latch1_gpio_props[] = {
+	PROPERTY_ENTRY_STRING("label", LATCH1_LABEL),
+	PROPERTY_ENTRY_U32("ngpios", LATCH1_NGPIO),
+	{ }
+};
+
+static const struct platform_device_info latch1_gpio_devinfo = {
+	.name		= "basic-mmio-gpio",
+	.id		= 0,
+	.res		= latch1_resources,
+	.num_res	= ARRAY_SIZE(latch1_resources),
+	.properties	= latch1_gpio_props,
+};
+
+#define LATCH1_PIN_LED_CAMERA		0
+#define LATCH1_PIN_LED_ADVERT		1
+#define LATCH1_PIN_LED_MAIL		2
+#define LATCH1_PIN_LED_HANDSFREE	3
+#define LATCH1_PIN_LED_VOICEMAIL	4
+#define LATCH1_PIN_LED_VOICE		5
+#define LATCH1_PIN_DOCKIT1		6
+#define LATCH1_PIN_DOCKIT2		7
+
+#define LATCH2_NGPIO			16
+
+static struct resource latch2_resources[] = {
+	[0] = {
+		.name	= "dat",
+		.start	= LATCH2_PHYS,
+		.end	= LATCH2_PHYS + (LATCH2_NGPIO - 1) / 8,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+#define LATCH2_LABEL	"latch2"
+
+static const struct property_entry latch2_gpio_props[] = {
+	PROPERTY_ENTRY_STRING("label", LATCH2_LABEL),
+	PROPERTY_ENTRY_U32("ngpios", LATCH2_NGPIO),
+	{ }
+};
+
+static struct platform_device_info latch2_gpio_devinfo = {
+	.name		= "basic-mmio-gpio",
+	.id		= 1,
+	.res		= latch2_resources,
+	.num_res	= ARRAY_SIZE(latch2_resources),
+	.properties	= latch2_gpio_props,
+};
+
+#define LATCH2_PIN_LCD_VBLEN		0
+#define LATCH2_PIN_LCD_NDISP		1
+#define LATCH2_PIN_NAND_NCE		2
+#define LATCH2_PIN_NAND_NRE		3
+#define LATCH2_PIN_NAND_NWP		4
+#define LATCH2_PIN_NAND_NWE		5
+#define LATCH2_PIN_NAND_ALE		6
+#define LATCH2_PIN_NAND_CLE		7
+#define LATCH2_PIN_KEYBRD_PWR		8
+#define LATCH2_PIN_KEYBRD_DATAOUT	9
+#define LATCH2_PIN_SCARD_RSTIN		10
+#define LATCH2_PIN_SCARD_CMDVCC		11
+#define LATCH2_PIN_MODEM_NRESET		12
+#define LATCH2_PIN_MODEM_CODEC		13
+#define LATCH2_PIN_HANDSFREE_MUTE	14
+#define LATCH2_PIN_HANDSET_MUTE		15
+
+static struct regulator_consumer_supply modem_nreset_consumers[] = {
+	REGULATOR_SUPPLY("RESET#", "serial8250.1"),
+	REGULATOR_SUPPLY("POR", "cx20442-codec"),
+};
+
+static struct regulator_init_data modem_nreset_data = {
+	.constraints		= {
+		.valid_ops_mask		= REGULATOR_CHANGE_STATUS,
+		.boot_on		= 1,
+	},
+	.num_consumer_supplies	= ARRAY_SIZE(modem_nreset_consumers),
+	.consumer_supplies	= modem_nreset_consumers,
+};
+
+static struct fixed_voltage_config modem_nreset_config = {
+	.supply_name		= "modem_nreset",
+	.microvolts		= 3300000,
+	.startup_delay		= 25000,
+	.enabled_at_boot	= 1,
+	.init_data		= &modem_nreset_data,
+};
+
+static struct platform_device modem_nreset_device = {
+	.name	= "reg-fixed-voltage",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &modem_nreset_config,
+	},
+};
+
+static struct gpiod_lookup_table ams_delta_nreset_gpiod_table = {
+	.dev_id = "reg-fixed-voltage",
+	.table = {
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_NRESET,
+			    NULL, GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+struct modem_private_data {
+	struct regulator *regulator;
+};
+
+static struct modem_private_data modem_priv;
+
+/*
+ * Define partitions for flash device
+ */
+
+static struct mtd_partition partition_info[] = {
+	{ .name		= "Kernel",
+	  .offset	= 0,
+	  .size		= 3 * SZ_1M + SZ_512K },
+	{ .name		= "u-boot",
+	  .offset	= 3 * SZ_1M + SZ_512K,
+	  .size		= SZ_256K },
+	{ .name		= "u-boot params",
+	  .offset	= 3 * SZ_1M + SZ_512K + SZ_256K,
+	  .size		= SZ_256K },
+	{ .name		= "Amstrad LDR",
+	  .offset	= 4 * SZ_1M,
+	  .size		= SZ_256K },
+	{ .name		= "File system",
+	  .offset	= 4 * SZ_1M + 1 * SZ_256K,
+	  .size		= 27 * SZ_1M },
+	{ .name		= "PBL reserved",
+	  .offset	= 32 * SZ_1M - 3 * SZ_256K,
+	  .size		=  3 * SZ_256K },
+};
+
+static struct gpio_nand_platdata nand_platdata = {
+	.parts		= partition_info,
+	.num_parts	= ARRAY_SIZE(partition_info),
+};
+
+static struct platform_device ams_delta_nand_device = {
+	.name	= "ams-delta-nand",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &nand_platdata,
+	},
+};
+
+#define OMAP_GPIO_LABEL		"gpio-0-15"
+#define OMAP_MPUIO_LABEL	"mpuio"
+
+static struct gpiod_lookup_table ams_delta_nand_gpio_table = {
+	.table = {
+		GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_NAND_RB, "rdy",
+			    0),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NCE, "nce",
+			    GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NRE, "nre",
+			    GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWP, "nwp",
+			    GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWE, "nwe",
+			    GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_ALE, "ale", 0),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_CLE, "cle", 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 0, "data", 0, 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 1, "data", 1, 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 2, "data", 2, 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 3, "data", 3, 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 4, "data", 4, 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 5, "data", 5, 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 6, "data", 6, 0),
+		GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 7, "data", 7, 0),
+		{ },
+	},
+};
+
+static struct resource ams_delta_kp_resources[] = {
+	[0] = {
+		.start	= INT_KEYBOARD,
+		.end	= INT_KEYBOARD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static const struct matrix_keymap_data ams_delta_keymap_data = {
+	.keymap		= ams_delta_keymap,
+	.keymap_size	= ARRAY_SIZE(ams_delta_keymap),
+};
+
+static struct omap_kp_platform_data ams_delta_kp_data = {
+	.rows		= 8,
+	.cols		= 8,
+	.keymap_data	= &ams_delta_keymap_data,
+	.delay		= 9,
+};
+
+static struct platform_device ams_delta_kp_device = {
+	.name		= "omap-keypad",
+	.id		= -1,
+	.dev		= {
+		.platform_data = &ams_delta_kp_data,
+	},
+	.num_resources	= ARRAY_SIZE(ams_delta_kp_resources),
+	.resource	= ams_delta_kp_resources,
+};
+
+static struct platform_device ams_delta_lcd_device = {
+	.name	= "lcd_ams_delta",
+	.id	= -1,
+};
+
+static struct gpiod_lookup_table ams_delta_lcd_gpio_table = {
+	.table = {
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_VBLEN, "vblen", 0),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_NDISP, "ndisp", 0),
+		{ },
+	},
+};
+
+static struct gpio_led gpio_leds[] __initdata = {
+	[LATCH1_PIN_LED_CAMERA] = {
+		.name		 = "camera",
+		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
+	},
+	[LATCH1_PIN_LED_ADVERT] = {
+		.name		 = "advert",
+		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
+	},
+	[LATCH1_PIN_LED_MAIL] = {
+		.name		 = "email",
+		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
+	},
+	[LATCH1_PIN_LED_HANDSFREE] = {
+		.name		 = "handsfree",
+		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
+	},
+	[LATCH1_PIN_LED_VOICEMAIL] = {
+		.name		 = "voicemail",
+		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
+	},
+	[LATCH1_PIN_LED_VOICE] = {
+		.name		 = "voice",
+		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
+	},
+};
+
+static const struct gpio_led_platform_data leds_pdata __initconst = {
+	.leds		= gpio_leds,
+	.num_leds	= ARRAY_SIZE(gpio_leds),
+};
+
+static struct gpiod_lookup_table leds_gpio_table = {
+	.table = {
+		GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_CAMERA, NULL,
+				LATCH1_PIN_LED_CAMERA, 0),
+		GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_ADVERT, NULL,
+				LATCH1_PIN_LED_ADVERT, 0),
+		GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_MAIL, NULL,
+				LATCH1_PIN_LED_MAIL, 0),
+		GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_HANDSFREE, NULL,
+				LATCH1_PIN_LED_HANDSFREE, 0),
+		GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICEMAIL, NULL,
+				LATCH1_PIN_LED_VOICEMAIL, 0),
+		GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICE, NULL,
+				LATCH1_PIN_LED_VOICE, 0),
+		{ },
+	},
+};
+
+static struct platform_device ams_delta_audio_device = {
+	.name   = "ams-delta-audio",
+	.id     = -1,
+};
+
+static struct gpiod_lookup_table ams_delta_audio_gpio_table = {
+	.table = {
+		GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_HOOK_SWITCH,
+			    "hook_switch", 0),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_CODEC,
+			    "modem_codec", 0),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_HANDSFREE_MUTE,
+			    "handsfree_mute", 0),
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_HANDSET_MUTE,
+			    "handset_mute", 0),
+		{ },
+	},
+};
+
+static struct platform_device cx20442_codec_device = {
+	.name   = "cx20442-codec",
+	.id     = -1,
+};
+
+static struct resource ams_delta_serio_resources[] = {
+	{
+		.flags	= IORESOURCE_IRQ,
+		/*
+		 * Initialize IRQ resource with invalid IRQ number.
+		 * It will be replaced with dynamically allocated GPIO IRQ
+		 * obtained from GPIO chip as soon as the chip is available.
+		 */
+		.start	= -EINVAL,
+		.end	= -EINVAL,
+	},
+};
+
+static struct platform_device ams_delta_serio_device = {
+	.name		= "ams-delta-serio",
+	.id		= PLATFORM_DEVID_NONE,
+	.dev		= {
+		/*
+		 * Initialize .platform_data explicitly with NULL to
+		 * indicate it is going to be used.  It will be replaced
+		 * with FIQ buffer address as soon as FIQ is initialized.
+		 */
+		.platform_data = NULL,
+	},
+	.num_resources	= ARRAY_SIZE(ams_delta_serio_resources),
+	.resource	= ams_delta_serio_resources,
+};
+
+static struct regulator_consumer_supply keybrd_pwr_consumers[] = {
+	/*
+	 * Initialize supply .dev_name with NULL.  It will be replaced
+	 * with serio dev_name() as soon as the serio device is registered.
+	 */
+	REGULATOR_SUPPLY("vcc", NULL),
+};
+
+static struct regulator_init_data keybrd_pwr_initdata = {
+	.constraints		= {
+		.valid_ops_mask		= REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= ARRAY_SIZE(keybrd_pwr_consumers),
+	.consumer_supplies	= keybrd_pwr_consumers,
+};
+
+static struct fixed_voltage_config keybrd_pwr_config = {
+	.supply_name		= "keybrd_pwr",
+	.microvolts		= 5000000,
+	.init_data		= &keybrd_pwr_initdata,
+};
+
+static struct platform_device keybrd_pwr_device = {
+	.name	= "reg-fixed-voltage",
+	.id	= PLATFORM_DEVID_AUTO,
+	.dev	= {
+		.platform_data	= &keybrd_pwr_config,
+	},
+};
+
+static struct gpiod_lookup_table keybrd_pwr_gpio_table = {
+	.table = {
+		GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_KEYBRD_PWR, NULL,
+			    GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+static struct platform_device *ams_delta_devices[] __initdata = {
+	&ams_delta_kp_device,
+	&ams_delta_audio_device,
+	&ams_delta_serio_device,
+	&ams_delta_nand_device,
+	&ams_delta_lcd_device,
+	&cx20442_codec_device,
+	&modem_nreset_device,
+};
+
+static struct gpiod_lookup_table *ams_delta_gpio_tables[] __initdata = {
+	&ams_delta_nreset_gpiod_table,
+	&ams_delta_audio_gpio_table,
+	&keybrd_pwr_gpio_table,
+	&ams_delta_lcd_gpio_table,
+	&ams_delta_nand_gpio_table,
+};
+
+static const struct software_node latch2_gpio_swnode = {
+	.name = LATCH2_LABEL,
+};
+
+static const u32 latch2_hog_gpios[] = { LATCH2_PIN_KEYBRD_DATAOUT, 0 };
+
+static const struct property_entry latch2_gpio_hog_props[] = {
+	PROPERTY_ENTRY_BOOL("gpio-hog"),
+	PROPERTY_ENTRY_U32_ARRAY("gpios", latch2_hog_gpios),
+	PROPERTY_ENTRY_STRING("line-name", "keybrd_dataout"),
+	PROPERTY_ENTRY_BOOL("output-low"),
+	{ }
+};
+
+static const struct software_node latch2_gpio_hog_swnode = {
+	.parent = &latch2_gpio_swnode,
+	.name = "latch2-hog",
+	.properties = latch2_gpio_hog_props,
+};
+
+static const struct software_node *const latch2_gpio_swnodes[] = {
+	&latch2_gpio_swnode,
+	&latch2_gpio_hog_swnode,
+	NULL
+};
+
+static struct plat_serial8250_port ams_delta_modem_ports[];
+
+/*
+ * Obtain MODEM IRQ GPIO descriptor using its hardware pin
+ * number and assign related IRQ number to the MODEM port.
+ * Keep the GPIO descriptor open so nobody steps in.
+ */
+static void __init modem_assign_irq(struct gpio_chip *chip)
+{
+	struct gpio_desc *gpiod;
+
+	gpiod = gpiochip_request_own_desc(chip, AMS_DELTA_GPIO_PIN_MODEM_IRQ,
+					  "modem_irq", GPIO_ACTIVE_HIGH,
+					  GPIOD_IN);
+	if (IS_ERR(gpiod)) {
+		pr_err("%s: modem IRQ GPIO request failed (%ld)\n", __func__,
+		       PTR_ERR(gpiod));
+	} else {
+		ams_delta_modem_ports[0].irq = gpiod_to_irq(gpiod);
+	}
+}
+
+/*
+ * The purpose of this function is to take care of proper initialization of
+ * devices and data structures which depend on GPIO lines provided by OMAP GPIO
+ * banks but their drivers don't use GPIO lookup tables or GPIO layer at all.
+ * The function may be called as soon as OMAP GPIO devices are probed.
+ * Since that happens at postcore_initcall, it can be called successfully
+ * from init_machine or later.
+ * Dependent devices may be registered from within this function or later.
+ */
+static void __init omap_gpio_deps_init(void)
+{
+	struct gpio_device *gdev;
+	struct gpio_chip *chip;
+
+	/*
+	 * Some drivers may not use GPIO lookup tables but need to be provided
+	 * with GPIO numbers. The same applies to GPIO based IRQ lines - some
+	 * drivers may even not use GPIO layer but expect just IRQ numbers.
+	 * We could either define GPIO lookup tables then use them on behalf
+	 * of those devices, or we can use GPIO driver level methods for
+	 * identification of GPIO and IRQ numbers.
+	 *
+	 * This reference will be leaked but that's alright as this device
+	 * never goes down.
+	 */
+	gdev = gpio_device_find_by_label(OMAP_GPIO_LABEL);
+	if (!gdev) {
+		pr_err("%s: OMAP GPIO device not found\n", __func__);
+		return;
+	}
+
+	chip = gpio_device_get_chip(gdev);
+
+	/*
+	 * Start with FIQ initialization as it may have to request
+	 * and release successfully each OMAP GPIO pin in turn.
+	 */
+	ams_delta_init_fiq(chip, &ams_delta_serio_device);
+
+	modem_assign_irq(chip);
+}
+
+/*
+ * Initialize latch2 pins with values which are safe for dependent on-board
+ * devices or useful for their successull initialization even before GPIO
+ * driver takes control over the latch pins:
+ * - LATCH2_PIN_LCD_VBLEN	= 0
+ * - LATCH2_PIN_LCD_NDISP	= 0	Keep LCD device powered off before its
+ *					driver takes control over it.
+ * - LATCH2_PIN_NAND_NCE	= 0
+ * - LATCH2_PIN_NAND_NWP	= 0	Keep NAND device down and write-
+ *					protected before its driver takes
+ *					control over it.
+ * - LATCH2_PIN_KEYBRD_PWR	= 0	Keep keyboard powered off before serio
+ *					driver takes control over it.
+ * - LATCH2_PIN_KEYBRD_DATAOUT	= 0	Keep low to avoid corruption of first
+ *					byte of data received from attached
+ *					keyboard when serio device is probed;
+ *					the pin is also hogged low by the latch2
+ *					GPIO driver as soon as it is ready.
+ * - LATCH2_PIN_MODEM_NRESET	= 1	Enable voice MODEM device, allowing for
+ *					its successful probe even before a
+ *					regulator it depends on, which in turn
+ *					takes control over the pin, is set up.
+ * - LATCH2_PIN_MODEM_CODEC	= 1	Attach voice MODEM CODEC data port
+ *					to the MODEM so the CODEC is under
+ *					control even if audio driver doesn't
+ *					take it over.
+ */
+static void __init ams_delta_latch2_init(void)
+{
+	u16 latch2 = 1 << LATCH2_PIN_MODEM_NRESET | 1 << LATCH2_PIN_MODEM_CODEC;
+
+	__raw_writew(latch2, IOMEM(LATCH2_VIRT));
+}
+
+static void __init ams_delta_init(void)
+{
+	struct platform_device *leds_pdev;
+
+	/* mux pins for uarts */
+	omap_cfg_reg(UART1_TX);
+	omap_cfg_reg(UART1_RTS);
+
+	/* parallel camera interface */
+	omap_cfg_reg(H19_1610_CAM_EXCLK);
+	omap_cfg_reg(J15_1610_CAM_LCLK);
+	omap_cfg_reg(L18_1610_CAM_VS);
+	omap_cfg_reg(L15_1610_CAM_HS);
+	omap_cfg_reg(L19_1610_CAM_D0);
+	omap_cfg_reg(K14_1610_CAM_D1);
+	omap_cfg_reg(K15_1610_CAM_D2);
+	omap_cfg_reg(K19_1610_CAM_D3);
+	omap_cfg_reg(K18_1610_CAM_D4);
+	omap_cfg_reg(J14_1610_CAM_D5);
+	omap_cfg_reg(J19_1610_CAM_D6);
+	omap_cfg_reg(J18_1610_CAM_D7);
+
+	omap_gpio_deps_init();
+	ams_delta_latch2_init();
+
+	omap_serial_init();
+	omap_register_i2c_bus(1, 100, NULL, 0);
+
+	omap1_usb_init(&ams_delta_usb_config);
+	platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
+
+	platform_device_register_full(&latch1_gpio_devinfo);
+
+	software_node_register_node_group(latch2_gpio_swnodes);
+	latch2_gpio_devinfo.fwnode = software_node_fwnode(&latch2_gpio_swnode);
+	platform_device_register_full(&latch2_gpio_devinfo);
+
+	/*
+	 * As soon as regulator consumers have been registered, assign their
+	 * dev_names to consumer supply entries of respective regulators.
+	 */
+	keybrd_pwr_consumers[0].dev_name =
+			dev_name(&ams_delta_serio_device.dev);
+
+	/*
+	 * Once consumer supply entries are populated with dev_names,
+	 * register regulator devices.  At this stage only the keyboard
+	 * power regulator has its consumer supply table fully populated.
+	 */
+	platform_device_register(&keybrd_pwr_device);
+
+	/*
+	 * As soon as GPIO consumers have been registered, assign
+	 * their dev_names to respective GPIO lookup tables.
+	 */
+	ams_delta_audio_gpio_table.dev_id =
+			dev_name(&ams_delta_audio_device.dev);
+	keybrd_pwr_gpio_table.dev_id = dev_name(&keybrd_pwr_device.dev);
+	ams_delta_nand_gpio_table.dev_id = dev_name(&ams_delta_nand_device.dev);
+	ams_delta_lcd_gpio_table.dev_id = dev_name(&ams_delta_lcd_device.dev);
+
+	/*
+	 * Once GPIO lookup tables are populated with dev_names, register them.
+	 */
+	gpiod_add_lookup_tables(ams_delta_gpio_tables,
+				ARRAY_SIZE(ams_delta_gpio_tables));
+
+	leds_pdev = gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata);
+	if (!IS_ERR_OR_NULL(leds_pdev)) {
+		leds_gpio_table.dev_id = dev_name(&leds_pdev->dev);
+		gpiod_add_lookup_table(&leds_gpio_table);
+	}
+
+	omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
+
+	omapfb_set_lcd_config(&ams_delta_lcd_config);
+}
+
+static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
+{
+	struct modem_private_data *priv = port->private_data;
+	int ret;
+
+	if (!priv)
+		return;
+
+	if (IS_ERR(priv->regulator))
+		return;
+
+	if (state == old)
+		return;
+
+	if (state == 0)
+		ret = regulator_enable(priv->regulator);
+	else if (old == 0)
+		ret = regulator_disable(priv->regulator);
+	else
+		ret = 0;
+
+	if (ret)
+		dev_warn(port->dev,
+			 "ams_delta modem_pm: failed to %sable regulator: %d\n",
+			 state ? "dis" : "en", ret);
+}
+
+static struct plat_serial8250_port ams_delta_modem_ports[] = {
+	{
+		.membase	= IOMEM(MODEM_VIRT),
+		.mapbase	= MODEM_PHYS,
+		.irq		= IRQ_NOTCONNECTED, /* changed later */
+		.flags		= UPF_BOOT_AUTOCONF,
+		.irqflags	= IRQF_TRIGGER_RISING,
+		.iotype		= UPIO_MEM,
+		.regshift	= 1,
+		.uartclk	= BASE_BAUD * 16,
+		.pm		= modem_pm,
+		.private_data	= &modem_priv,
+	},
+	{ },
+};
+
+static int ams_delta_modem_pm_activate(struct device *dev)
+{
+	modem_priv.regulator = regulator_get(dev, "RESET#");
+	if (IS_ERR(modem_priv.regulator))
+		return -EPROBE_DEFER;
+
+	return 0;
+}
+
+static struct dev_pm_domain ams_delta_modem_pm_domain = {
+	.activate	= ams_delta_modem_pm_activate,
+};
+
+static struct platform_device ams_delta_modem_device = {
+	.name	= "serial8250",
+	.id	= PLAT8250_DEV_PLATFORM1,
+	.dev		= {
+		.platform_data = ams_delta_modem_ports,
+		.pm_domain = &ams_delta_modem_pm_domain,
+	},
+};
+
+/*
+ * This function expects MODEM IRQ number already assigned to the port.
+ * The MODEM device requires its RESET# pin kept high during probe.
+ * That requirement can be fulfilled in several ways:
+ * - with a descriptor of already functional modem_nreset regulator
+ *   assigned to the MODEM private data,
+ * - with the regulator not yet controlled by modem_pm function but
+ *   already enabled by default on probe,
+ * - before the modem_nreset regulator is probed, with the pin already
+ *   set high explicitly.
+ * The last one is already guaranteed by ams_delta_latch2_init() called
+ * from machine_init.
+ * In order to avoid taking over ttyS0 device slot, the MODEM device
+ * should be registered after OMAP serial ports.  Since those ports
+ * are registered at arch_initcall, this function can be called safely
+ * at arch_initcall_sync earliest.
+ */
+static int __init ams_delta_modem_init(void)
+{
+	if (!machine_is_ams_delta())
+		return -ENODEV;
+
+	omap_cfg_reg(M14_1510_GPIO2);
+
+	/* Initialize the modem_nreset regulator consumer before use */
+	modem_priv.regulator = ERR_PTR(-ENODEV);
+
+	return platform_device_register(&ams_delta_modem_device);
+}
+arch_initcall_sync(ams_delta_modem_init);
+
+static void __init ams_delta_map_io(void)
+{
+	omap1_map_io();
+	iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
+}
+
+MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
+	/* Maintainer: Jonathan McDowell <noodles@earth.li> */
+	.atag_offset	= 0x100,
+	.map_io		= ams_delta_map_io,
+	.init_early	= omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= ams_delta_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END
diff --git a/arch/arm/mach-omap1/board-ams-delta.h b/arch/arm/mach-omap1/board-ams-delta.h
new file mode 100644
index 000000000..b5c4a373b
--- /dev/null
+++ b/arch/arm/mach-omap1/board-ams-delta.h
@@ -0,0 +1,42 @@
+/*
+ * arch/arm/mach-omap1/board-ams-delta.h
+ *
+ * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
+ *
+ * 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 __ASM_ARCH_OMAP_AMS_DELTA_H
+#define __ASM_ARCH_OMAP_AMS_DELTA_H
+
+#if defined (CONFIG_MACH_AMS_DELTA)
+
+#define AMS_DELTA_GPIO_PIN_KEYBRD_DATA	0
+#define AMS_DELTA_GPIO_PIN_KEYBRD_CLK	1
+#define AMS_DELTA_GPIO_PIN_MODEM_IRQ	2
+#define AMS_DELTA_GPIO_PIN_HOOK_SWITCH	4
+#define AMS_DELTA_GPIO_PIN_SCARD_NOFF	6
+#define AMS_DELTA_GPIO_PIN_SCARD_IO	7
+#define AMS_DELTA_GPIO_PIN_CONFIG	11
+#define AMS_DELTA_GPIO_PIN_NAND_RB	12
+
+#endif /* CONFIG_MACH_AMS_DELTA */
+
+#endif /* __ASM_ARCH_OMAP_AMS_DELTA_H */
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
new file mode 100644
index 000000000..72d9e92a1
--- /dev/null
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -0,0 +1,328 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/board-nokia770.c
+ *
+ * Modified from board-generic.c
+ */
+#include <linux/clkdev.h>
+#include <linux/irq.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/input.h>
+#include <linux/omapfb.h>
+
+#include <linux/spi/spi.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+
+#include <linux/platform_data/keypad-omap.h>
+#include <linux/platform_data/lcd-mipid.h>
+#include <linux/platform_data/gpio-omap.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "mux.h"
+#include "hardware.h"
+#include "usb.h"
+#include "common.h"
+#include "clock.h"
+#include "mmc.h"
+
+static const unsigned int nokia770_keymap[] = {
+	KEY(1, 0, GROUP_0 | KEY_UP),
+	KEY(2, 0, GROUP_1 | KEY_F5),
+	KEY(0, 1, GROUP_0 | KEY_LEFT),
+	KEY(1, 1, GROUP_0 | KEY_ENTER),
+	KEY(2, 1, GROUP_0 | KEY_RIGHT),
+	KEY(0, 2, GROUP_1 | KEY_ESC),
+	KEY(1, 2, GROUP_0 | KEY_DOWN),
+	KEY(2, 2, GROUP_1 | KEY_F4),
+	KEY(0, 3, GROUP_2 | KEY_F7),
+	KEY(1, 3, GROUP_2 | KEY_F8),
+	KEY(2, 3, GROUP_2 | KEY_F6),
+};
+
+static struct resource nokia770_kp_resources[] = {
+	[0] = {
+		.start	= INT_KEYBOARD,
+		.end	= INT_KEYBOARD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static const struct matrix_keymap_data nokia770_keymap_data = {
+	.keymap		= nokia770_keymap,
+	.keymap_size	= ARRAY_SIZE(nokia770_keymap),
+};
+
+static struct omap_kp_platform_data nokia770_kp_data = {
+	.rows		= 8,
+	.cols		= 8,
+	.keymap_data	= &nokia770_keymap_data,
+	.delay		= 4,
+};
+
+static struct platform_device nokia770_kp_device = {
+	.name		= "omap-keypad",
+	.id		= -1,
+	.dev		= {
+		.platform_data = &nokia770_kp_data,
+	},
+	.num_resources	= ARRAY_SIZE(nokia770_kp_resources),
+	.resource	= nokia770_kp_resources,
+};
+
+static struct platform_device *nokia770_devices[] __initdata = {
+	&nokia770_kp_device,
+};
+
+static struct mipid_platform_data nokia770_mipid_platform_data = { };
+
+static const struct omap_lcd_config nokia770_lcd_config __initconst = {
+	.ctrl_name	= "hwa742",
+};
+
+static const struct property_entry nokia770_mipid_props[] = {
+	PROPERTY_ENTRY_GPIO("reset-gpios", &omap16xx_gpio1_swnode,
+			    13, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node nokia770_mipid_swnode = {
+	.name = "lcd_mipid",
+	.properties = nokia770_mipid_props,
+};
+
+static void __init mipid_dev_init(void)
+{
+	nokia770_mipid_platform_data.data_lines = 16;
+
+	omapfb_set_lcd_config(&nokia770_lcd_config);
+}
+
+static const struct property_entry nokia770_ads7846_props[] = {
+	PROPERTY_ENTRY_STRING("compatible", "ti,ads7846"),
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 4096),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 4096),
+	PROPERTY_ENTRY_U32("touchscreen-max-pressure", 256),
+	PROPERTY_ENTRY_U32("touchscreen-average-samples", 10),
+	PROPERTY_ENTRY_U16("ti,x-plate-ohms", 180),
+	PROPERTY_ENTRY_U16("ti,debounce-tol", 3),
+	PROPERTY_ENTRY_U16("ti,debounce-rep", 1),
+	PROPERTY_ENTRY_GPIO("pendown-gpios", &omap16xx_gpio1_swnode, 15, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node nokia770_ads7846_swnode = {
+	.name = "ads7846",
+	.properties = nokia770_ads7846_props,
+};
+
+static struct spi_board_info nokia770_spi_board_info[] __initdata = {
+	[0] = {
+		.modalias       = "lcd_mipid",
+		.bus_num        = 2,
+		.chip_select    = 3,
+		.max_speed_hz   = 12000000,
+		.platform_data	= &nokia770_mipid_platform_data,
+		.swnode         = &nokia770_mipid_swnode,
+	},
+	[1] = {
+		.modalias       = "ads7846",
+		.bus_num        = 2,
+		.chip_select    = 0,
+		.max_speed_hz   = 2500000,
+		.swnode         = &nokia770_ads7846_swnode,
+	},
+};
+
+static void __init hwa742_dev_init(void)
+{
+	clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
+}
+
+/* assume no Mini-AB port */
+
+static struct omap_usb_config nokia770_usb_config __initdata = {
+	.otg		= 1,
+	.register_host	= 1,
+	.register_dev	= 1,
+	.hmc_mode	= 16,
+	.pins[0]	= 6,
+	.extcon		= "tahvo-usb",
+};
+
+#if IS_ENABLED(CONFIG_MMC_OMAP)
+
+static struct gpiod_lookup_table nokia770_mmc_gpio_table = {
+	.dev_id = "mmci-omap.1",
+	.table = {
+		/* Slot index 0, VSD power, GPIO 41 */
+		GPIO_LOOKUP_IDX("gpio-32-47", 9,
+				"vsd", 0, GPIO_ACTIVE_HIGH),
+		/* Slot index 0, switch, GPIO 23 */
+		GPIO_LOOKUP_IDX("gpio-16-31", 7,
+				"cover", 0, GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
+static struct omap_mmc_platform_data nokia770_mmc2_data = {
+	.nr_slots                       = 1,
+	.max_freq                       = 12000000,
+	.slots[0]       = {
+		.ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
+		.name                   = "mmcblk",
+	},
+};
+
+static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
+
+static void __init nokia770_mmc_init(void)
+{
+	gpiod_add_lookup_table(&nokia770_mmc_gpio_table);
+	/* Only the second MMC controller is used */
+	nokia770_mmc_data[1] = &nokia770_mmc2_data;
+	omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
+}
+
+#else
+static inline void nokia770_mmc_init(void)
+{
+}
+#endif
+
+#if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
+
+static const struct software_node_ref_args nokia770_cbus_gpio_refs[] = {
+	SOFTWARE_NODE_REFERENCE(&omap16xx_mpu_gpio_swnode, 9, 0),
+	SOFTWARE_NODE_REFERENCE(&omap16xx_mpu_gpio_swnode, 10, 0),
+	SOFTWARE_NODE_REFERENCE(&omap16xx_mpu_gpio_swnode, 11, 0),
+};
+
+static const struct property_entry nokia770_cbus_props[] = {
+	PROPERTY_ENTRY_REF_ARRAY("gpios", nokia770_cbus_gpio_refs),
+	{ }
+};
+
+static struct platform_device nokia770_cbus_device = {
+	.name   = "i2c-cbus-gpio",
+	.id     = 2,
+};
+
+static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
+	{
+		I2C_BOARD_INFO("retu", 0x01),
+	},
+	{
+		I2C_BOARD_INFO("tahvo", 0x02),
+	},
+};
+
+static void __init nokia770_cbus_init(void)
+{
+	struct gpio_desc *d;
+	int irq;
+
+	d = gpiod_get(NULL, "retu_irq", GPIOD_IN);
+	if (IS_ERR(d)) {
+		pr_err("Unable to get CBUS Retu IRQ GPIO descriptor\n");
+	} else {
+		irq = gpiod_to_irq(d);
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
+		nokia770_i2c_board_info_2[0].irq = irq;
+	}
+	d = gpiod_get(NULL, "tahvo_irq", GPIOD_IN);
+	if (IS_ERR(d)) {
+		pr_err("Unable to get CBUS Tahvo IRQ GPIO descriptor\n");
+	} else {
+		irq = gpiod_to_irq(d);
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
+		nokia770_i2c_board_info_2[1].irq = irq;
+	}
+	i2c_register_board_info(2, nokia770_i2c_board_info_2,
+				ARRAY_SIZE(nokia770_i2c_board_info_2));
+	device_create_managed_software_node(&nokia770_cbus_device.dev,
+					    nokia770_cbus_props, NULL);
+	platform_device_register(&nokia770_cbus_device);
+}
+#else /* CONFIG_I2C_CBUS_GPIO */
+static void __init nokia770_cbus_init(void)
+{
+}
+#endif /* CONFIG_I2C_CBUS_GPIO */
+
+static struct gpiod_lookup_table nokia770_irq_gpio_table = {
+	.dev_id = NULL,
+	.table = {
+		/* GPIO used by SPI device 1 */
+		GPIO_LOOKUP("gpio-0-15", 15, "ads7846_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIO used for retu IRQ */
+		GPIO_LOOKUP("gpio-48-63", 14, "retu_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIO used for tahvo IRQ */
+		GPIO_LOOKUP("gpio-32-47", 8, "tahvo_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIOs used by serial wakeup IRQs */
+		GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0,
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1,
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2,
+			    GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
+static void __init omap_nokia770_init(void)
+{
+	struct gpio_desc *d;
+
+	/* On Nokia 770, the SleepX signal is masked with an
+	 * MPUIO line by default.  It has to be unmasked for it
+	 * to become functional */
+
+	/* SleepX mask direction */
+	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
+	/* Unmask SleepX signal */
+	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
+
+	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
+
+	gpiod_add_lookup_table(&nokia770_irq_gpio_table);
+	d = gpiod_get(NULL, "ads7846_irq", GPIOD_IN);
+	if (IS_ERR(d))
+		pr_err("Unable to get ADS7846 IRQ GPIO descriptor\n");
+	else
+		nokia770_spi_board_info[1].irq = gpiod_to_irq(d);
+
+	spi_register_board_info(nokia770_spi_board_info,
+				ARRAY_SIZE(nokia770_spi_board_info));
+	omap_serial_init();
+	omap_register_i2c_bus(1, 100, NULL, 0);
+	hwa742_dev_init();
+	mipid_dev_init();
+	omap1_usb_init(&nokia770_usb_config);
+	nokia770_mmc_init();
+	nokia770_cbus_init();
+}
+
+MACHINE_START(NOKIA770, "Nokia 770")
+	.atag_offset	= 0x100,
+	.map_io		= omap1_map_io,
+	.init_early     = omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= omap_nokia770_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
new file mode 100644
index 000000000..7d5e6f903
--- /dev/null
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -0,0 +1,454 @@
+/*
+ * linux/arch/arm/mach-omap1/board-osk.c
+ *
+ * Board specific init for OMAP5912 OSK
+ *
+ * Written by Dirk Behme <dirk.behme@de.bosch.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.
+ */
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
+#include <linux/gpio/machine.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/smc91x.h>
+#include <linux/omapfb.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mfd/tps65010.h>
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/platform_data/omap1_bl.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "tc.h"
+#include "flash.h"
+#include "mux.h"
+#include "hardware.h"
+#include "usb.h"
+#include "common.h"
+
+/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
+#define OMAP_GPIO_LABEL		"gpio-0-15"
+
+/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
+#define OMAP_OSK_ETHR_START		0x04800300
+
+/* TPS65010 has four GPIOs.  nPG and LED2 can be treated like GPIOs with
+ * alternate pin configurations for hardware-controlled blinking.
+ */
+#define OSK_TPS_GPIO_USB_PWR_EN	0
+#define OSK_TPS_GPIO_LED_D3	1
+#define OSK_TPS_GPIO_LAN_RESET	2
+#define OSK_TPS_GPIO_DSP_PWR_EN	3
+#define OSK_TPS_GPIO_LED_D9	4
+#define OSK_TPS_GPIO_LED_D2	5
+
+static struct mtd_partition osk_partitions[] = {
+	/* bootloader (U-Boot, etc) in first sector */
+	{
+	      .name		= "bootloader",
+	      .offset		= 0,
+	      .size		= SZ_128K,
+	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
+	},
+	/* bootloader params in the next sector */
+	{
+	      .name		= "params",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_128K,
+	      .mask_flags	= 0,
+	}, {
+	      .name		= "kernel",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_2M,
+	      .mask_flags	= 0
+	}, {
+	      .name		= "filesystem",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= MTDPART_SIZ_FULL,
+	      .mask_flags	= 0
+	}
+};
+
+static struct physmap_flash_data osk_flash_data = {
+	.width		= 2,
+	.set_vpp	= omap1_set_vpp,
+	.parts		= osk_partitions,
+	.nr_parts	= ARRAY_SIZE(osk_partitions),
+};
+
+static struct resource osk_flash_resource = {
+	/* this is on CS3, wherever it's mapped */
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device osk5912_flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &osk_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &osk_flash_resource,
+};
+
+static struct smc91x_platdata osk5912_smc91x_info = {
+	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
+	.leda	= RPC_LED_100_10,
+	.ledb	= RPC_LED_TX_RX,
+};
+
+static struct resource osk5912_smc91x_resources[] = {
+	[0] = {
+		.start	= OMAP_OSK_ETHR_START,		/* Physical */
+		.end	= OMAP_OSK_ETHR_START + 0xf,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	},
+};
+
+static struct platform_device osk5912_smc91x_device = {
+	.name		= "smc91x",
+	.id		= -1,
+	.dev	= {
+		.platform_data	= &osk5912_smc91x_info,
+	},
+	.num_resources	= ARRAY_SIZE(osk5912_smc91x_resources),
+	.resource	= osk5912_smc91x_resources,
+};
+
+static struct resource osk5912_cf_resources[] = {
+	[0] = {
+		.flags	= IORESOURCE_IRQ,
+	},
+	[1] = {
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device osk5912_cf_device = {
+	.name		= "omap_cf",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(osk5912_cf_resources),
+	.resource	= osk5912_cf_resources,
+};
+
+static struct platform_device *osk5912_devices[] __initdata = {
+	&osk5912_flash_device,
+	&osk5912_smc91x_device,
+	&osk5912_cf_device,
+};
+
+static const struct gpio_led tps_leds[] = {
+	/* NOTE:  D9 and D2 have hardware blink support.
+	 * Also, D9 requires non-battery power.
+	 */
+	{ .name = "d9", .default_trigger = "disk-activity", },
+	{ .name = "d2", },
+	{ .name = "d3", .default_trigger = "heartbeat", },
+};
+
+static struct gpiod_lookup_table tps_leds_gpio_table = {
+	.dev_id = "leds-gpio",
+	.table = {
+		/* Use local offsets on TPS65010 */
+		GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D9, NULL, 0, GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D2, NULL, 1, GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D3, NULL, 2, GPIO_ACTIVE_LOW),
+		{ }
+	},
+};
+
+static struct gpio_led_platform_data tps_leds_data = {
+	.num_leds	= 3,
+	.leds		= tps_leds,
+};
+
+static struct platform_device osk5912_tps_leds = {
+	.name			= "leds-gpio",
+	.id			= 0,
+	.dev.platform_data	= &tps_leds_data,
+};
+
+/* The board just hold these GPIOs hogged from setup to teardown */
+static struct gpio_desc *eth_reset;
+static struct gpio_desc *vdd_dsp;
+
+static int osk_tps_setup(struct i2c_client *client, struct gpio_chip *gc)
+{
+	struct gpio_desc *d;
+	if (!IS_BUILTIN(CONFIG_TPS65010))
+		return -ENOSYS;
+
+	/* Set GPIO 1 HIGH to disable VBUS power supply;
+	 * OHCI driver powers it up/down as needed.
+	 */
+	d = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en",
+				      GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH);
+	/* Free the GPIO again as the driver will request it */
+	gpiochip_free_own_desc(d);
+
+	/* Set GPIO 2 high so LED D3 is off by default */
+	tps65010_set_gpio_out_value(GPIO2, HIGH);
+
+	/* Set GPIO 3 low to take ethernet out of reset */
+	eth_reset = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_LAN_RESET, "smc_reset",
+					      GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW);
+
+	/* GPIO4 is VDD_DSP */
+	vdd_dsp = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power",
+					    GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH);
+	/* REVISIT if DSP support isn't configured, power it off ... */
+
+	/* Let LED1 (D9) blink; leds-gpio may override it */
+	tps65010_set_led(LED1, BLINK);
+
+	/* Set LED2 off by default */
+	tps65010_set_led(LED2, OFF);
+
+	/* Enable LOW_PWR handshake */
+	tps65010_set_low_pwr(ON);
+
+	/* Switch VLDO2 to 3.0V for AIC23 */
+	tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
+			| TPS_LDO1_ENABLE);
+
+	/* register these three LEDs */
+	osk5912_tps_leds.dev.parent = &client->dev;
+	gpiod_add_lookup_table(&tps_leds_gpio_table);
+	platform_device_register(&osk5912_tps_leds);
+
+	return 0;
+}
+
+static void osk_tps_teardown(struct i2c_client *client, struct gpio_chip *gc)
+{
+	gpiochip_free_own_desc(eth_reset);
+	gpiochip_free_own_desc(vdd_dsp);
+}
+
+static struct tps65010_board tps_board = {
+	.outmask	= 0x0f,
+	.setup		= osk_tps_setup,
+	.teardown	= osk_tps_teardown,
+};
+
+static struct i2c_board_info __initdata osk_i2c_board_info[] = {
+	{
+		/* This device will get the name "i2c-tps65010" */
+		I2C_BOARD_INFO("tps65010", 0x48),
+		.dev_name = "tps65010",
+		.platform_data	= &tps_board,
+
+	},
+	{
+		I2C_BOARD_INFO("tlv320aic23", 0x1B),
+	},
+	/* TODO when driver support is ready:
+	 *  - optionally on Mistral, ov9640 camera sensor at 0x30
+	 */
+};
+
+static void __init osk_init_smc91x(void)
+{
+	u32 l;
+
+	/* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
+	l = omap_readl(EMIFS_CCS(1));
+	l |= 0x3;
+	omap_writel(l, EMIFS_CCS(1));
+}
+
+static void __init osk_init_cf(int seg)
+{
+	struct resource *res = &osk5912_cf_resources[1];
+
+	omap_cfg_reg(M7_1610_GPIO62);
+
+	switch (seg) {
+	/* NOTE: CS0 could be configured too ... */
+	case 1:
+		res->start = OMAP_CS1_PHYS;
+		break;
+	case 2:
+		res->start = OMAP_CS2_PHYS;
+		break;
+	case 3:
+		res->start = omap_cs3_phys();
+		break;
+	}
+
+	res->end = res->start + SZ_8K - 1;
+	osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg;
+
+	/* NOTE:  better EMIFS setup might support more cards; but the
+	 * TRM only shows how to affect regular flash signals, not their
+	 * CF/PCMCIA variants...
+	 */
+	pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__,
+		seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
+	omap_writel(0x0004a1b3, EMIFS_CCS(seg));	/* synch mode 4 etc */
+	omap_writel(0x00000000, EMIFS_ACS(seg));	/* OE hold/setup */
+}
+
+static struct gpiod_lookup_table osk_usb_gpio_table = {
+	.dev_id = "ohci",
+	.table = {
+		/* Power GPIO on the I2C-attached TPS65010 */
+		GPIO_LOOKUP("tps65010", OSK_TPS_GPIO_USB_PWR_EN, "power",
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
+			    GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
+static struct omap_usb_config osk_usb_config __initdata = {
+	/* has usb host connector (A) ... for development it can also
+	 * be used, with a NONSTANDARD gender-bending cable/dongle, as
+	 * a peripheral.
+	 */
+#if IS_ENABLED(CONFIG_USB_OMAP)
+	.register_dev	= 1,
+	.hmc_mode	= 0,
+#else
+	.register_host	= 1,
+	.hmc_mode	= 16,
+	.rwc		= 1,
+#endif
+	.pins[0]	= 2,
+};
+
+#define EMIFS_CS3_VAL	(0x88013141)
+
+static struct gpiod_lookup_table osk_irq_gpio_table = {
+	.dev_id = NULL,
+	.table = {
+		/* GPIO used for SMC91x IRQ */
+		GPIO_LOOKUP(OMAP_GPIO_LABEL, 0, "smc_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIO used for CF IRQ */
+		GPIO_LOOKUP("gpio-48-63", 14, "cf_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIO used by the TPS65010 chip */
+		GPIO_LOOKUP("mpuio", 1, "tps65010",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIOs used for serial wakeup IRQs */
+		GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0,
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1,
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2,
+			    GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
+static void __init osk_init(void)
+{
+	struct gpio_desc *d;
+	u32 l;
+
+	osk_init_smc91x();
+	osk_init_cf(2); /* CS2 */
+
+	/* Workaround for wrong CS3 (NOR flash) timing
+	 * There are some U-Boot versions out there which configure
+	 * wrong CS3 memory timings. This mainly leads to CRC
+	 * or similar errors if you use NOR flash (e.g. with JFFS2)
+	 */
+	l = omap_readl(EMIFS_CCS(3));
+	if (l != EMIFS_CS3_VAL)
+		omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
+
+	osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
+	osk_flash_resource.end += SZ_32M - 1;
+
+	/*
+	 * Add the GPIOs to be used as IRQs and immediately look them up
+	 * to be passed as an IRQ resource. This is ugly but should work
+	 * until the day we convert to device tree.
+	 */
+	gpiod_add_lookup_table(&osk_irq_gpio_table);
+
+	d = gpiod_get(NULL, "smc_irq", GPIOD_IN);
+	if (IS_ERR(d)) {
+		pr_err("Unable to get SMC IRQ GPIO descriptor\n");
+	} else {
+		irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_RISING);
+		osk5912_smc91x_resources[1] = DEFINE_RES_IRQ(gpiod_to_irq(d));
+	}
+
+	d = gpiod_get(NULL, "cf_irq", GPIOD_IN);
+	if (IS_ERR(d)) {
+		pr_err("Unable to get CF IRQ GPIO descriptor\n");
+	} else {
+		/* the CF I/O IRQ is really active-low */
+		irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_FALLING);
+		osk5912_cf_resources[0] = DEFINE_RES_IRQ(gpiod_to_irq(d));
+	}
+
+	platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
+
+	l = omap_readl(USB_TRANSCEIVER_CTRL);
+	l |= (3 << 1);
+	omap_writel(l, USB_TRANSCEIVER_CTRL);
+
+	gpiod_add_lookup_table(&osk_usb_gpio_table);
+	omap1_usb_init(&osk_usb_config);
+
+	omap_serial_init();
+
+	/* irq for tps65010 chip */
+	/* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
+	d = gpiod_get(NULL, "tps65010", GPIOD_IN);
+	if (IS_ERR(d))
+		pr_err("Unable to get TPS65010 IRQ GPIO descriptor\n");
+	else
+		osk_i2c_board_info[0].irq = gpiod_to_irq(d);
+	omap_register_i2c_bus(1, 400, osk_i2c_board_info,
+			      ARRAY_SIZE(osk_i2c_board_info));
+}
+
+MACHINE_START(OMAP_OSK, "TI-OSK")
+	/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
+	.atag_offset	= 0x100,
+	.map_io		= omap1_map_io,
+	.init_early	= omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= osk_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END
diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c
new file mode 100644
index 000000000..c917cb2c6
--- /dev/null
+++ b/arch/arm/mach-omap1/board-palmte.c
@@ -0,0 +1,272 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/board-palmte.c
+ *
+ * Modified from board-generic.c
+ *
+ * Support for the Palm Tungsten E PDA.
+ *
+ * Original version : Laurent Gonzalez
+ *
+ * Maintainers : http://palmtelinux.sf.net
+ *                palmtelinux-developpers@lists.sf.net
+ *
+ * Copyright (c) 2006 Andrzej Zaborowski  <balrog@zabor.org>
+ */
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/spi/spi.h>
+#include <linux/interrupt.h>
+#include <linux/apm-emulation.h>
+#include <linux/omapfb.h>
+#include <linux/omap-dma.h>
+#include <linux/platform_data/keypad-omap.h>
+#include <linux/platform_data/omap1_bl.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "tc.h"
+#include "flash.h"
+#include "mux.h"
+#include "hardware.h"
+#include "usb.h"
+#include "mmc.h"
+#include "common.h"
+
+#define PALMTE_USBDETECT_GPIO	0
+#define PALMTE_USB_OR_DC_GPIO	1
+#define PALMTE_TSC_GPIO		4
+#define PALMTE_PINTDAV_GPIO	6
+#define PALMTE_MMC_WP_GPIO	8
+#define PALMTE_MMC_POWER_GPIO	9
+#define PALMTE_HDQ_GPIO		11
+#define PALMTE_HEADPHONES_GPIO	14
+#define PALMTE_SPEAKER_GPIO	15
+
+static const unsigned int palmte_keymap[] = {
+	KEY(0, 0, KEY_F1),		/* Calendar */
+	KEY(1, 0, KEY_F2),		/* Contacts */
+	KEY(2, 0, KEY_F3),		/* Tasks List */
+	KEY(3, 0, KEY_F4),		/* Note Pad */
+	KEY(4, 0, KEY_POWER),
+	KEY(0, 1, KEY_LEFT),
+	KEY(1, 1, KEY_DOWN),
+	KEY(2, 1, KEY_UP),
+	KEY(3, 1, KEY_RIGHT),
+	KEY(4, 1, KEY_ENTER),
+};
+
+static const struct matrix_keymap_data palmte_keymap_data = {
+	.keymap		= palmte_keymap,
+	.keymap_size	= ARRAY_SIZE(palmte_keymap),
+};
+
+static struct omap_kp_platform_data palmte_kp_data = {
+	.rows	= 8,
+	.cols	= 8,
+	.keymap_data = &palmte_keymap_data,
+	.rep	= true,
+	.delay	= 12,
+};
+
+static struct resource palmte_kp_resources[] = {
+	[0]	= {
+		.start	= INT_KEYBOARD,
+		.end	= INT_KEYBOARD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device palmte_kp_device = {
+	.name		= "omap-keypad",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &palmte_kp_data,
+	},
+	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
+	.resource	= palmte_kp_resources,
+};
+
+static struct mtd_partition palmte_rom_partitions[] = {
+	/* PalmOS "Small ROM", contains the bootloader and the debugger */
+	{
+		.name		= "smallrom",
+		.offset		= 0,
+		.size		= 0xa000,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
+	{
+		.name		= "bigrom",
+		.offset		= SZ_128K,
+		/*
+		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
+		 * 0x7b0000 bytes in the English-only ("enUS") version.
+		 */
+		.size		= 0x7b0000,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+};
+
+static struct physmap_flash_data palmte_rom_data = {
+	.width		= 2,
+	.set_vpp	= omap1_set_vpp,
+	.parts		= palmte_rom_partitions,
+	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
+};
+
+static struct resource palmte_rom_resource = {
+	.start		= OMAP_CS0_PHYS,
+	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device palmte_rom_device = {
+	.name		= "physmap-flash",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &palmte_rom_data,
+	},
+	.num_resources	= 1,
+	.resource	= &palmte_rom_resource,
+};
+
+static struct platform_device palmte_lcd_device = {
+	.name		= "lcd_palmte",
+	.id		= -1,
+};
+
+static struct omap_backlight_config palmte_backlight_config = {
+	.default_intensity	= 0xa0,
+};
+
+static struct platform_device palmte_backlight_device = {
+	.name		= "omap-bl",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &palmte_backlight_config,
+	},
+};
+
+static struct platform_device *palmte_devices[] __initdata = {
+	&palmte_rom_device,
+	&palmte_kp_device,
+	&palmte_lcd_device,
+	&palmte_backlight_device,
+};
+
+static struct omap_usb_config palmte_usb_config __initdata = {
+	.register_dev	= 1,	/* Mini-B only receptacle */
+	.hmc_mode	= 0,
+	.pins[0]	= 2,
+};
+
+static const struct omap_lcd_config palmte_lcd_config __initconst = {
+	.ctrl_name	= "internal",
+};
+
+static struct spi_board_info palmte_spi_info[] __initdata = {
+	{
+		.modalias	= "tsc2102",
+		.bus_num	= 2,	/* uWire (officially) */
+		.chip_select	= 0,	/* As opposed to 3 */
+		.max_speed_hz	= 8000000,
+	},
+};
+
+#if IS_ENABLED(CONFIG_MMC_OMAP)
+
+static struct omap_mmc_platform_data _palmte_mmc_config = {
+	.nr_slots			= 1,
+	.slots[0]			= {
+		.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
+		.name			= "mmcblk",
+	},
+};
+
+static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
+	[0] = &_palmte_mmc_config,
+};
+
+static void palmte_mmc_init(void)
+{
+	omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
+}
+
+#else /* CONFIG_MMC_OMAP */
+
+static void palmte_mmc_init(void)
+{
+}
+
+#endif /* CONFIG_MMC_OMAP */
+
+static struct gpiod_lookup_table palmte_irq_gpio_table = {
+	.dev_id = NULL,
+	.table = {
+		/* GPIO used for TSC2102 PINTDAV IRQ */
+		GPIO_LOOKUP("gpio-0-15", PALMTE_PINTDAV_GPIO, "tsc2102_irq",
+			    GPIO_ACTIVE_HIGH),
+		/* GPIO used for USB or DC input detection */
+		GPIO_LOOKUP("gpio-0-15", PALMTE_USB_OR_DC_GPIO, "usb_dc_irq",
+			    GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
+static void __init omap_palmte_init(void)
+{
+	struct gpio_desc *d;
+
+	/* mux pins for uarts */
+	omap_cfg_reg(UART1_TX);
+	omap_cfg_reg(UART1_RTS);
+	omap_cfg_reg(UART2_TX);
+	omap_cfg_reg(UART2_RTS);
+	omap_cfg_reg(UART3_TX);
+	omap_cfg_reg(UART3_RX);
+
+	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
+
+	gpiod_add_lookup_table(&palmte_irq_gpio_table);
+	d = gpiod_get(NULL, "tsc2102_irq", GPIOD_IN);
+	if (IS_ERR(d))
+		pr_err("Unable to get TSC2102 IRQ GPIO descriptor\n");
+	else
+		palmte_spi_info[0].irq = gpiod_to_irq(d);
+	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
+
+	/* We are getting this just to set it up as input */
+	d = gpiod_get(NULL, "usb_dc_irq", GPIOD_IN);
+	if (IS_ERR(d))
+		pr_err("Unable to get USB/DC IRQ GPIO descriptor\n");
+	else
+		gpiod_put(d);
+
+	omap_serial_init();
+	omap1_usb_init(&palmte_usb_config);
+	omap_register_i2c_bus(1, 100, NULL, 0);
+
+	omapfb_set_lcd_config(&palmte_lcd_config);
+	palmte_mmc_init();
+}
+
+MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
+	.atag_offset	= 0x100,
+	.map_io		= omap1_map_io,
+	.init_early     = omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= omap_palmte_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END
diff --git a/arch/arm/mach-omap1/board-sx1-mmc.c b/arch/arm/mach-omap1/board-sx1-mmc.c
new file mode 100644
index 000000000..f183a8448
--- /dev/null
+++ b/arch/arm/mach-omap1/board-sx1-mmc.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/board-sx1-mmc.c
+ *
+ * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
+ * Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
+ *
+ * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
+ * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
+ */
+
+#include <linux/platform_device.h>
+
+#include "hardware.h"
+#include "board-sx1.h"
+#include "mmc.h"
+
+#if IS_ENABLED(CONFIG_MMC_OMAP)
+
+static int mmc_set_power(struct device *dev, int slot, int power_on,
+				int vdd)
+{
+	int err;
+	u8 dat = 0;
+
+	err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
+	if (err < 0)
+		return err;
+
+	if (power_on)
+		dat |= SOFIA_MMC_POWER;
+	else
+		dat &= ~SOFIA_MMC_POWER;
+
+	return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
+}
+
+/* Cover switch is at OMAP_MPUIO(3) */
+static struct omap_mmc_platform_data mmc1_data = {
+	.nr_slots                       = 1,
+	.slots[0]       = {
+		.set_power              = mmc_set_power,
+		.ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
+		.name                   = "mmcblk",
+	},
+};
+
+static struct omap_mmc_platform_data *mmc_data[OMAP15XX_NR_MMC];
+
+void __init sx1_mmc_init(void)
+{
+	mmc_data[0] = &mmc1_data;
+	omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
+}
+
+#else
+
+void __init sx1_mmc_init(void)
+{
+}
+
+#endif
diff --git a/arch/arm/mach-omap1/board-sx1.c b/arch/arm/mach-omap1/board-sx1.c
new file mode 100644
index 000000000..b869c7ba1
--- /dev/null
+++ b/arch/arm/mach-omap1/board-sx1.c
@@ -0,0 +1,371 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+* linux/arch/arm/mach-omap1/board-sx1.c
+*
+* Modified from board-generic.c
+*
+* Support for the Siemens SX1 mobile phone.
+*
+* Original version : Vladimir Ananiev (Vovan888-at-gmail com)
+*
+* Maintainters : Vladimir Ananiev (aka Vovan888), Sergge
+*		oslik.ru
+*/
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/notifier.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/types.h>
+#include <linux/i2c.h>
+#include <linux/errno.h>
+#include <linux/export.h>
+#include <linux/omapfb.h>
+#include <linux/platform_data/keypad-omap.h>
+#include <linux/omap-dma.h>
+#include "tc.h"
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "flash.h"
+#include "mux.h"
+#include "board-sx1.h"
+#include "hardware.h"
+#include "usb.h"
+#include "common.h"
+
+/* Write to I2C device */
+int sx1_i2c_write_byte(u8 devaddr, u8 regoffset, u8 value)
+{
+	struct i2c_adapter *adap;
+	int err;
+	struct i2c_msg msg[1];
+	unsigned char data[2];
+
+	adap = i2c_get_adapter(0);
+	if (!adap)
+		return -ENODEV;
+	msg->addr = devaddr;	/* I2C address of chip */
+	msg->flags = 0;
+	msg->len = 2;
+	msg->buf = data;
+	data[0] = regoffset;	/* register num */
+	data[1] = value;		/* register data */
+	err = i2c_transfer(adap, msg, 1);
+	i2c_put_adapter(adap);
+	if (err >= 0)
+		return 0;
+	return err;
+}
+
+/* Read from I2C device */
+int sx1_i2c_read_byte(u8 devaddr, u8 regoffset, u8 *value)
+{
+	struct i2c_adapter *adap;
+	int err;
+	struct i2c_msg msg[1];
+	unsigned char data[2];
+
+	adap = i2c_get_adapter(0);
+	if (!adap)
+		return -ENODEV;
+
+	msg->addr = devaddr;	/* I2C address of chip */
+	msg->flags = 0;
+	msg->len = 1;
+	msg->buf = data;
+	data[0] = regoffset;	/* register num */
+	err = i2c_transfer(adap, msg, 1);
+
+	msg->addr = devaddr;	/* I2C address */
+	msg->flags = I2C_M_RD;
+	msg->len = 1;
+	msg->buf = data;
+	err = i2c_transfer(adap, msg, 1);
+	*value = data[0];
+	i2c_put_adapter(adap);
+
+	if (err >= 0)
+		return 0;
+	return err;
+}
+/* set keyboard backlight intensity */
+int sx1_setkeylight(u8 keylight)
+{
+	if (keylight > SOFIA_MAX_LIGHT_VAL)
+		keylight = SOFIA_MAX_LIGHT_VAL;
+	return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight);
+}
+/* get current keylight intensity */
+int sx1_getkeylight(u8 * keylight)
+{
+	return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight);
+}
+/* set LCD backlight intensity */
+int sx1_setbacklight(u8 backlight)
+{
+	if (backlight > SOFIA_MAX_LIGHT_VAL)
+		backlight = SOFIA_MAX_LIGHT_VAL;
+	return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG,
+				  backlight);
+}
+/* get current LCD backlight intensity */
+int sx1_getbacklight (u8 * backlight)
+{
+	return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG,
+				 backlight);
+}
+/* set LCD backlight power on/off */
+int sx1_setmmipower(u8 onoff)
+{
+	int err;
+	u8 dat = 0;
+	err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
+	if (err < 0)
+		return err;
+	if (onoff)
+		dat |= SOFIA_MMILIGHT_POWER;
+	else
+		dat &= ~SOFIA_MMILIGHT_POWER;
+	return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
+}
+
+/* set USB power on/off */
+int sx1_setusbpower(u8 onoff)
+{
+	int err;
+	u8 dat = 0;
+	err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
+	if (err < 0)
+		return err;
+	if (onoff)
+		dat |= SOFIA_USB_POWER;
+	else
+		dat &= ~SOFIA_USB_POWER;
+	return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
+}
+
+EXPORT_SYMBOL(sx1_setkeylight);
+EXPORT_SYMBOL(sx1_getkeylight);
+EXPORT_SYMBOL(sx1_setbacklight);
+EXPORT_SYMBOL(sx1_getbacklight);
+EXPORT_SYMBOL(sx1_setmmipower);
+EXPORT_SYMBOL(sx1_setusbpower);
+
+/*----------- Keypad -------------------------*/
+
+static const unsigned int sx1_keymap[] = {
+	KEY(3, 5, GROUP_0 | 117), /* camera Qt::Key_F17 */
+	KEY(4, 0, GROUP_0 | 114), /* voice memo Qt::Key_F14 */
+	KEY(4, 1, GROUP_2 | 114), /* voice memo */
+	KEY(4, 2, GROUP_3 | 114), /* voice memo */
+	KEY(0, 0, GROUP_1 | KEY_F12),	/* red button Qt::Key_Hangup */
+	KEY(3, 4, GROUP_1 | KEY_LEFT),
+	KEY(3, 2, GROUP_1 | KEY_DOWN),
+	KEY(3, 1, GROUP_1 | KEY_RIGHT),
+	KEY(3, 0, GROUP_1 | KEY_UP),
+	KEY(3, 3, GROUP_1 | KEY_POWER), /* joystick press or Qt::Key_Select */
+	KEY(0, 5, GROUP_1 | KEY_1),
+	KEY(0, 4, GROUP_1 | KEY_2),
+	KEY(0, 3, GROUP_1 | KEY_3),
+	KEY(4, 3, GROUP_1 | KEY_4),
+	KEY(4, 4, GROUP_1 | KEY_5),
+	KEY(4, 5, GROUP_1 | KEY_KPASTERISK),/* "*" */
+	KEY(1, 4, GROUP_1 | KEY_6),
+	KEY(1, 5, GROUP_1 | KEY_7),
+	KEY(1, 3, GROUP_1 | KEY_8),
+	KEY(2, 3, GROUP_1 | KEY_9),
+	KEY(2, 5, GROUP_1 | KEY_0),
+	KEY(2, 4, GROUP_1 | 113), /* # F13 Toggle input method Qt::Key_F13 */
+	KEY(1, 0, GROUP_1 | KEY_F11),	/* green button Qt::Key_Call */
+	KEY(2, 1, GROUP_1 | KEY_YEN),	/* left soft Qt::Key_Context1 */
+	KEY(2, 2, GROUP_1 | KEY_F8),	/* right soft Qt::Key_Back */
+	KEY(1, 2, GROUP_1 | KEY_LEFTSHIFT), /* shift */
+	KEY(1, 1, GROUP_1 | KEY_BACKSPACE), /* C (clear) */
+	KEY(2, 0, GROUP_1 | KEY_F7),	/* menu Qt::Key_Menu */
+};
+
+static struct resource sx1_kp_resources[] = {
+	[0] = {
+		.start	= INT_KEYBOARD,
+		.end	= INT_KEYBOARD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static const struct matrix_keymap_data sx1_keymap_data = {
+	.keymap		= sx1_keymap,
+	.keymap_size	= ARRAY_SIZE(sx1_keymap),
+};
+
+static struct omap_kp_platform_data sx1_kp_data = {
+	.rows		= 6,
+	.cols		= 6,
+	.keymap_data	= &sx1_keymap_data,
+	.delay	= 80,
+};
+
+static struct platform_device sx1_kp_device = {
+	.name		= "omap-keypad",
+	.id		= -1,
+	.dev		= {
+		.platform_data = &sx1_kp_data,
+	},
+	.num_resources	= ARRAY_SIZE(sx1_kp_resources),
+	.resource	= sx1_kp_resources,
+};
+
+/*----------- MTD -------------------------*/
+
+static struct mtd_partition sx1_partitions[] = {
+	/* bootloader (U-Boot, etc) in first sector */
+	{
+		.name		= "bootloader",
+		.offset		= 0x01800000,
+		.size		= SZ_128K,
+		.mask_flags	= MTD_WRITEABLE, /* force read-only */
+	},
+	/* bootloader params in the next sector */
+	{
+		.name		= "params",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_128K,
+		.mask_flags	= 0,
+	},
+	/* kernel */
+	{
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_2M - 2 * SZ_128K,
+		.mask_flags	= 0
+	},
+	/* file system */
+	{
+		.name		= "filesystem",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+		.mask_flags	= 0
+	}
+};
+
+static struct physmap_flash_data sx1_flash_data = {
+	.width		= 2,
+	.set_vpp	= omap1_set_vpp,
+	.parts		= sx1_partitions,
+	.nr_parts	= ARRAY_SIZE(sx1_partitions),
+};
+
+/* MTD Intel 4000 flash - new flashes */
+static struct resource sx1_new_flash_resource = {
+	.start		= OMAP_CS0_PHYS,
+	.end		= OMAP_CS0_PHYS + SZ_32M - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device sx1_flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &sx1_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &sx1_new_flash_resource,
+};
+
+/*----------- USB -------------------------*/
+
+static struct omap_usb_config sx1_usb_config __initdata = {
+	.otg		= 0,
+	.register_dev	= 1,
+	.register_host	= 0,
+	.hmc_mode	= 0,
+	.pins[0]	= 2,
+	.pins[1]	= 0,
+	.pins[2]	= 0,
+};
+
+/*----------- LCD -------------------------*/
+
+static const struct omap_lcd_config sx1_lcd_config __initconst = {
+	.ctrl_name	= "internal",
+};
+
+/*-----------------------------------------*/
+static struct platform_device *sx1_devices[] __initdata = {
+	&sx1_flash_device,
+	&sx1_kp_device,
+};
+
+/*-----------------------------------------*/
+
+static struct gpiod_lookup_table sx1_gpio_table = {
+	.dev_id = NULL,
+	.table = {
+		GPIO_LOOKUP("gpio-0-15", 1, "irda_off",
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-0-15", 11, "switch",
+			    GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-0-15", 15, "usb_on",
+			    GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
+static void __init omap_sx1_init(void)
+{
+	struct gpio_desc *d;
+
+	/* mux pins for uarts */
+	omap_cfg_reg(UART1_TX);
+	omap_cfg_reg(UART1_RTS);
+	omap_cfg_reg(UART2_TX);
+	omap_cfg_reg(UART2_RTS);
+	omap_cfg_reg(UART3_TX);
+	omap_cfg_reg(UART3_RX);
+
+	platform_add_devices(sx1_devices, ARRAY_SIZE(sx1_devices));
+
+	omap_serial_init();
+	omap_register_i2c_bus(1, 100, NULL, 0);
+	omap1_usb_init(&sx1_usb_config);
+	sx1_mmc_init();
+	gpiod_add_lookup_table(&sx1_gpio_table);
+
+	/* turn on USB power */
+	/* sx1_setusbpower(1); can't do it here because i2c is not ready */
+	d = gpiod_get(NULL, "irda_off", GPIOD_OUT_HIGH);
+	if (IS_ERR(d))
+		pr_err("Unable to get IRDA OFF GPIO descriptor\n");
+	else
+		gpiod_put(d);
+	d = gpiod_get(NULL, "switch", GPIOD_OUT_LOW);
+	if (IS_ERR(d))
+		pr_err("Unable to get SWITCH GPIO descriptor\n");
+	else
+		gpiod_put(d);
+	d = gpiod_get(NULL, "usb_on", GPIOD_OUT_LOW);
+	if (IS_ERR(d))
+		pr_err("Unable to get USB ON GPIO descriptor\n");
+	else
+		gpiod_put(d);
+
+	omapfb_set_lcd_config(&sx1_lcd_config);
+}
+
+MACHINE_START(SX1, "OMAP310 based Siemens SX1")
+	.atag_offset	= 0x100,
+	.map_io		= omap1_map_io,
+	.init_early     = omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= omap_sx1_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END
diff --git a/arch/arm/mach-omap1/board-sx1.h b/arch/arm/mach-omap1/board-sx1.h
new file mode 100644
index 000000000..fafe54a2e
--- /dev/null
+++ b/arch/arm/mach-omap1/board-sx1.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Siemens SX1 board definitions
+ *
+ * Copyright: Vovan888 at gmail com
+ */
+
+#ifndef __ASM_ARCH_SX1_I2C_CHIPS_H
+#define __ASM_ARCH_SX1_I2C_CHIPS_H
+
+#define SOFIA_MAX_LIGHT_VAL	0x2B
+
+#define SOFIA_I2C_ADDR		0x32
+/* Sofia reg 3 bits masks */
+#define SOFIA_POWER1_REG	0x03
+
+#define	SOFIA_USB_POWER		0x01
+#define	SOFIA_MMC_POWER		0x04
+#define	SOFIA_BLUETOOTH_POWER	0x08
+#define	SOFIA_MMILIGHT_POWER	0x20
+
+#define SOFIA_POWER2_REG	0x04
+#define SOFIA_BACKLIGHT_REG	0x06
+#define SOFIA_KEYLIGHT_REG	0x07
+#define SOFIA_DIMMING_REG	0x09
+
+
+/* Function Prototypes for SX1 devices control on I2C bus */
+
+int sx1_setbacklight(u8 backlight);
+int sx1_getbacklight(u8 *backlight);
+int sx1_setkeylight(u8 keylight);
+int sx1_getkeylight(u8 *keylight);
+
+int sx1_setmmipower(u8 onoff);
+int sx1_setusbpower(u8 onoff);
+int sx1_i2c_read_byte(u8 devaddr, u8 regoffset, u8 *value);
+int sx1_i2c_write_byte(u8 devaddr, u8 regoffset, u8 value);
+
+/* MMC prototypes */
+
+extern void sx1_mmc_init(void);
+extern void sx1_mmc_slot_cover_handler(void *arg, int state);
+
+#endif /* __ASM_ARCH_SX1_I2C_CHIPS_H */
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
new file mode 100644
index 000000000..afc6404f6
--- /dev/null
+++ b/arch/arm/mach-omap1/clock.c
@@ -0,0 +1,847 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/arch/arm/mach-omap1/clock.c
+ *
+ *  Copyright (C) 2004 - 2005, 2009-2010 Nokia Corporation
+ *  Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *
+ *  Modified to use omap shared clock framework by
+ *  Tony Lindgren <tony@atomide.com>
+ */
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/soc/ti/omap1-io.h>
+#include <linux/spinlock.h>
+
+#include <asm/mach-types.h>
+
+#include "hardware.h"
+#include "soc.h"
+#include "iomap.h"
+#include "clock.h"
+#include "opp.h"
+#include "sram.h"
+
+__u32 arm_idlect1_mask;
+/* provide direct internal access (not via clk API) to some clocks */
+struct omap1_clk *api_ck_p, *ck_dpll1_p, *ck_ref_p;
+
+/* protect registeres shared among clk_enable/disable() and clk_set_rate() operations */
+static DEFINE_SPINLOCK(arm_ckctl_lock);
+static DEFINE_SPINLOCK(arm_idlect2_lock);
+static DEFINE_SPINLOCK(mod_conf_ctrl_0_lock);
+static DEFINE_SPINLOCK(mod_conf_ctrl_1_lock);
+static DEFINE_SPINLOCK(swd_clk_div_ctrl_sel_lock);
+
+/*
+ * Omap1 specific clock functions
+ */
+
+unsigned long omap1_uart_recalc(struct omap1_clk *clk, unsigned long p_rate)
+{
+	unsigned int val = __raw_readl(clk->enable_reg);
+	return val & 1 << clk->enable_bit ? 48000000 : 12000000;
+}
+
+unsigned long omap1_sossi_recalc(struct omap1_clk *clk, unsigned long p_rate)
+{
+	u32 div = omap_readl(MOD_CONF_CTRL_1);
+
+	div = (div >> 17) & 0x7;
+	div++;
+
+	return p_rate / div;
+}
+
+static void omap1_clk_allow_idle(struct omap1_clk *clk)
+{
+	struct arm_idlect1_clk * iclk = (struct arm_idlect1_clk *)clk;
+
+	if (!(clk->flags & CLOCK_IDLE_CONTROL))
+		return;
+
+	if (iclk->no_idle_count > 0 && !(--iclk->no_idle_count))
+		arm_idlect1_mask |= 1 << iclk->idlect_shift;
+}
+
+static void omap1_clk_deny_idle(struct omap1_clk *clk)
+{
+	struct arm_idlect1_clk * iclk = (struct arm_idlect1_clk *)clk;
+
+	if (!(clk->flags & CLOCK_IDLE_CONTROL))
+		return;
+
+	if (iclk->no_idle_count++ == 0)
+		arm_idlect1_mask &= ~(1 << iclk->idlect_shift);
+}
+
+static __u16 verify_ckctl_value(__u16 newval)
+{
+	/* This function checks for following limitations set
+	 * by the hardware (all conditions must be true):
+	 * DSPMMU_CK == DSP_CK  or  DSPMMU_CK == DSP_CK/2
+	 * ARM_CK >= TC_CK
+	 * DSP_CK >= TC_CK
+	 * DSPMMU_CK >= TC_CK
+	 *
+	 * In addition following rules are enforced:
+	 * LCD_CK <= TC_CK
+	 * ARMPER_CK <= TC_CK
+	 *
+	 * However, maximum frequencies are not checked for!
+	 */
+	__u8 per_exp;
+	__u8 lcd_exp;
+	__u8 arm_exp;
+	__u8 dsp_exp;
+	__u8 tc_exp;
+	__u8 dspmmu_exp;
+
+	per_exp = (newval >> CKCTL_PERDIV_OFFSET) & 3;
+	lcd_exp = (newval >> CKCTL_LCDDIV_OFFSET) & 3;
+	arm_exp = (newval >> CKCTL_ARMDIV_OFFSET) & 3;
+	dsp_exp = (newval >> CKCTL_DSPDIV_OFFSET) & 3;
+	tc_exp = (newval >> CKCTL_TCDIV_OFFSET) & 3;
+	dspmmu_exp = (newval >> CKCTL_DSPMMUDIV_OFFSET) & 3;
+
+	if (dspmmu_exp < dsp_exp)
+		dspmmu_exp = dsp_exp;
+	if (dspmmu_exp > dsp_exp+1)
+		dspmmu_exp = dsp_exp+1;
+	if (tc_exp < arm_exp)
+		tc_exp = arm_exp;
+	if (tc_exp < dspmmu_exp)
+		tc_exp = dspmmu_exp;
+	if (tc_exp > lcd_exp)
+		lcd_exp = tc_exp;
+	if (tc_exp > per_exp)
+		per_exp = tc_exp;
+
+	newval &= 0xf000;
+	newval |= per_exp << CKCTL_PERDIV_OFFSET;
+	newval |= lcd_exp << CKCTL_LCDDIV_OFFSET;
+	newval |= arm_exp << CKCTL_ARMDIV_OFFSET;
+	newval |= dsp_exp << CKCTL_DSPDIV_OFFSET;
+	newval |= tc_exp << CKCTL_TCDIV_OFFSET;
+	newval |= dspmmu_exp << CKCTL_DSPMMUDIV_OFFSET;
+
+	return newval;
+}
+
+static int calc_dsor_exp(unsigned long rate, unsigned long realrate)
+{
+	/* Note: If target frequency is too low, this function will return 4,
+	 * which is invalid value. Caller must check for this value and act
+	 * accordingly.
+	 *
+	 * Note: This function does not check for following limitations set
+	 * by the hardware (all conditions must be true):
+	 * DSPMMU_CK == DSP_CK  or  DSPMMU_CK == DSP_CK/2
+	 * ARM_CK >= TC_CK
+	 * DSP_CK >= TC_CK
+	 * DSPMMU_CK >= TC_CK
+	 */
+	unsigned  dsor_exp;
+
+	if (unlikely(realrate == 0))
+		return -EIO;
+
+	for (dsor_exp=0; dsor_exp<4; dsor_exp++) {
+		if (realrate <= rate)
+			break;
+
+		realrate /= 2;
+	}
+
+	return dsor_exp;
+}
+
+unsigned long omap1_ckctl_recalc(struct omap1_clk *clk, unsigned long p_rate)
+{
+	/* Calculate divisor encoded as 2-bit exponent */
+	int dsor = 1 << (3 & (omap_readw(ARM_CKCTL) >> clk->rate_offset));
+
+	/* update locally maintained rate, required by arm_ck for omap1_show_rates() */
+	clk->rate = p_rate / dsor;
+	return clk->rate;
+}
+
+static int omap1_clk_is_enabled(struct clk_hw *hw)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw);
+	bool api_ck_was_enabled = true;
+	__u32 regval32;
+	int ret;
+
+	if (!clk->ops)	/* no gate -- always enabled */
+		return 1;
+
+	if (clk->ops == &clkops_dspck) {
+		api_ck_was_enabled = omap1_clk_is_enabled(&api_ck_p->hw);
+		if (!api_ck_was_enabled)
+			if (api_ck_p->ops->enable(api_ck_p) < 0)
+				return 0;
+	}
+
+	if (clk->flags & ENABLE_REG_32BIT)
+		regval32 = __raw_readl(clk->enable_reg);
+	else
+		regval32 = __raw_readw(clk->enable_reg);
+
+	ret = regval32 & (1 << clk->enable_bit);
+
+	if (!api_ck_was_enabled)
+		api_ck_p->ops->disable(api_ck_p);
+
+	return ret;
+}
+
+
+unsigned long omap1_ckctl_recalc_dsp_domain(struct omap1_clk *clk, unsigned long p_rate)
+{
+	bool api_ck_was_enabled;
+	int dsor;
+
+	/* Calculate divisor encoded as 2-bit exponent
+	 *
+	 * The clock control bits are in DSP domain,
+	 * so api_ck is needed for access.
+	 * Note that DSP_CKCTL virt addr = phys addr, so
+	 * we must use __raw_readw() instead of omap_readw().
+	 */
+	api_ck_was_enabled = omap1_clk_is_enabled(&api_ck_p->hw);
+	if (!api_ck_was_enabled)
+		api_ck_p->ops->enable(api_ck_p);
+	dsor = 1 << (3 & (__raw_readw(DSP_CKCTL) >> clk->rate_offset));
+	if (!api_ck_was_enabled)
+		api_ck_p->ops->disable(api_ck_p);
+
+	return p_rate / dsor;
+}
+
+/* MPU virtual clock functions */
+int omap1_select_table_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate)
+{
+	/* Find the highest supported frequency <= rate and switch to it */
+	struct mpu_rate * ptr;
+	unsigned long ref_rate;
+
+	ref_rate = ck_ref_p->rate;
+
+	for (ptr = omap1_rate_table; ptr->rate; ptr++) {
+		if (!(ptr->flags & cpu_mask))
+			continue;
+
+		if (ptr->xtal != ref_rate)
+			continue;
+
+		/* Can check only after xtal frequency check */
+		if (ptr->rate <= rate)
+			break;
+	}
+
+	if (!ptr->rate)
+		return -EINVAL;
+
+	/*
+	 * In most cases we should not need to reprogram DPLL.
+	 * Reprogramming the DPLL is tricky, it must be done from SRAM.
+	 */
+	omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val);
+
+	/* XXX Do we need to recalculate the tree below DPLL1 at this point? */
+	ck_dpll1_p->rate = ptr->pll_rate;
+
+	return 0;
+}
+
+int omap1_clk_set_rate_dsp_domain(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate)
+{
+	int dsor_exp;
+	u16 regval;
+
+	dsor_exp = calc_dsor_exp(rate, p_rate);
+	if (dsor_exp > 3)
+		dsor_exp = -EINVAL;
+	if (dsor_exp < 0)
+		return dsor_exp;
+
+	regval = __raw_readw(DSP_CKCTL);
+	regval &= ~(3 << clk->rate_offset);
+	regval |= dsor_exp << clk->rate_offset;
+	__raw_writew(regval, DSP_CKCTL);
+	clk->rate = p_rate / (1 << dsor_exp);
+
+	return 0;
+}
+
+long omap1_clk_round_rate_ckctl_arm(struct omap1_clk *clk, unsigned long rate,
+				    unsigned long *p_rate)
+{
+	int dsor_exp = calc_dsor_exp(rate, *p_rate);
+
+	if (dsor_exp < 0)
+		return dsor_exp;
+	if (dsor_exp > 3)
+		dsor_exp = 3;
+	return *p_rate / (1 << dsor_exp);
+}
+
+int omap1_clk_set_rate_ckctl_arm(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate)
+{
+	unsigned long flags;
+	int dsor_exp;
+	u16 regval;
+
+	dsor_exp = calc_dsor_exp(rate, p_rate);
+	if (dsor_exp > 3)
+		dsor_exp = -EINVAL;
+	if (dsor_exp < 0)
+		return dsor_exp;
+
+	/* protect ARM_CKCTL register from concurrent access via clk_enable/disable() */
+	spin_lock_irqsave(&arm_ckctl_lock, flags);
+
+	regval = omap_readw(ARM_CKCTL);
+	regval &= ~(3 << clk->rate_offset);
+	regval |= dsor_exp << clk->rate_offset;
+	regval = verify_ckctl_value(regval);
+	omap_writew(regval, ARM_CKCTL);
+	clk->rate = p_rate / (1 << dsor_exp);
+
+	spin_unlock_irqrestore(&arm_ckctl_lock, flags);
+
+	return 0;
+}
+
+long omap1_round_to_table_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate)
+{
+	/* Find the highest supported frequency <= rate */
+	struct mpu_rate * ptr;
+	long highest_rate;
+	unsigned long ref_rate;
+
+	ref_rate = ck_ref_p->rate;
+
+	highest_rate = -EINVAL;
+
+	for (ptr = omap1_rate_table; ptr->rate; ptr++) {
+		if (!(ptr->flags & cpu_mask))
+			continue;
+
+		if (ptr->xtal != ref_rate)
+			continue;
+
+		highest_rate = ptr->rate;
+
+		/* Can check only after xtal frequency check */
+		if (ptr->rate <= rate)
+			break;
+	}
+
+	return highest_rate;
+}
+
+static unsigned calc_ext_dsor(unsigned long rate)
+{
+	unsigned dsor;
+
+	/* MCLK and BCLK divisor selection is not linear:
+	 * freq = 96MHz / dsor
+	 *
+	 * RATIO_SEL range: dsor <-> RATIO_SEL
+	 * 0..6: (RATIO_SEL+2) <-> (dsor-2)
+	 * 6..48:  (8+(RATIO_SEL-6)*2) <-> ((dsor-8)/2+6)
+	 * Minimum dsor is 2 and maximum is 96. Odd divisors starting from 9
+	 * can not be used.
+	 */
+	for (dsor = 2; dsor < 96; ++dsor) {
+		if ((dsor & 1) && dsor > 8)
+			continue;
+		if (rate >= 96000000 / dsor)
+			break;
+	}
+	return dsor;
+}
+
+/* XXX Only needed on 1510 */
+long omap1_round_uart_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate)
+{
+	return rate > 24000000 ? 48000000 : 12000000;
+}
+
+int omap1_set_uart_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate)
+{
+	unsigned long flags;
+	unsigned int val;
+
+	if (rate == 12000000)
+		val = 0;
+	else if (rate == 48000000)
+		val = 1 << clk->enable_bit;
+	else
+		return -EINVAL;
+
+	/* protect MOD_CONF_CTRL_0 register from concurrent access via clk_enable/disable() */
+	spin_lock_irqsave(&mod_conf_ctrl_0_lock, flags);
+
+	val |= __raw_readl(clk->enable_reg) & ~(1 << clk->enable_bit);
+	__raw_writel(val, clk->enable_reg);
+
+	spin_unlock_irqrestore(&mod_conf_ctrl_0_lock, flags);
+
+	clk->rate = rate;
+
+	return 0;
+}
+
+/* External clock (MCLK & BCLK) functions */
+int omap1_set_ext_clk_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate)
+{
+	unsigned long flags;
+	unsigned dsor;
+	__u16 ratio_bits;
+
+	dsor = calc_ext_dsor(rate);
+	clk->rate = 96000000 / dsor;
+	if (dsor > 8)
+		ratio_bits = ((dsor - 8) / 2 + 6) << 2;
+	else
+		ratio_bits = (dsor - 2) << 2;
+
+	/* protect SWD_CLK_DIV_CTRL_SEL register from concurrent access via clk_enable/disable() */
+	spin_lock_irqsave(&swd_clk_div_ctrl_sel_lock, flags);
+
+	ratio_bits |= __raw_readw(clk->enable_reg) & ~0xfd;
+	__raw_writew(ratio_bits, clk->enable_reg);
+
+	spin_unlock_irqrestore(&swd_clk_div_ctrl_sel_lock, flags);
+
+	return 0;
+}
+
+static int calc_div_sossi(unsigned long rate, unsigned long p_rate)
+{
+	int div;
+
+	/* Round towards slower frequency */
+	div = (p_rate + rate - 1) / rate;
+
+	return --div;
+}
+
+long omap1_round_sossi_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate)
+{
+	int div;
+
+	div = calc_div_sossi(rate, *p_rate);
+	if (div < 0)
+		div = 0;
+	else if (div > 7)
+		div = 7;
+
+	return *p_rate / (div + 1);
+}
+
+int omap1_set_sossi_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate)
+{
+	unsigned long flags;
+	u32 l;
+	int div;
+
+	div = calc_div_sossi(rate, p_rate);
+	if (div < 0 || div > 7)
+		return -EINVAL;
+
+	/* protect MOD_CONF_CTRL_1 register from concurrent access via clk_enable/disable() */
+	spin_lock_irqsave(&mod_conf_ctrl_1_lock, flags);
+
+	l = omap_readl(MOD_CONF_CTRL_1);
+	l &= ~(7 << 17);
+	l |= div << 17;
+	omap_writel(l, MOD_CONF_CTRL_1);
+
+	clk->rate = p_rate / (div + 1);
+
+	spin_unlock_irqrestore(&mod_conf_ctrl_1_lock, flags);
+
+	return 0;
+}
+
+long omap1_round_ext_clk_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate)
+{
+	return 96000000 / calc_ext_dsor(rate);
+}
+
+int omap1_init_ext_clk(struct omap1_clk *clk)
+{
+	unsigned dsor;
+	__u16 ratio_bits;
+
+	/* Determine current rate and ensure clock is based on 96MHz APLL */
+	ratio_bits = __raw_readw(clk->enable_reg) & ~1;
+	__raw_writew(ratio_bits, clk->enable_reg);
+
+	ratio_bits = (ratio_bits & 0xfc) >> 2;
+	if (ratio_bits > 6)
+		dsor = (ratio_bits - 6) * 2 + 8;
+	else
+		dsor = ratio_bits + 2;
+
+	clk-> rate = 96000000 / dsor;
+
+	return 0;
+}
+
+static int omap1_clk_enable(struct clk_hw *hw)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw), *parent = to_omap1_clk(clk_hw_get_parent(hw));
+	int ret = 0;
+
+	if (parent && clk->flags & CLOCK_NO_IDLE_PARENT)
+		omap1_clk_deny_idle(parent);
+
+	if (clk->ops && !(WARN_ON(!clk->ops->enable)))
+		ret = clk->ops->enable(clk);
+
+	return ret;
+}
+
+static void omap1_clk_disable(struct clk_hw *hw)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw), *parent = to_omap1_clk(clk_hw_get_parent(hw));
+
+	if (clk->ops && !(WARN_ON(!clk->ops->disable)))
+		clk->ops->disable(clk);
+
+	if (likely(parent) && clk->flags & CLOCK_NO_IDLE_PARENT)
+		omap1_clk_allow_idle(parent);
+}
+
+static int omap1_clk_enable_generic(struct omap1_clk *clk)
+{
+	unsigned long flags;
+	__u16 regval16;
+	__u32 regval32;
+
+	if (unlikely(clk->enable_reg == NULL)) {
+		printk(KERN_ERR "clock.c: Enable for %s without enable code\n",
+		       clk_hw_get_name(&clk->hw));
+		return -EINVAL;
+	}
+
+	/* protect clk->enable_reg from concurrent access via clk_set_rate() */
+	if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_CKCTL))
+		spin_lock_irqsave(&arm_ckctl_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_IDLECT2))
+		spin_lock_irqsave(&arm_idlect2_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0))
+		spin_lock_irqsave(&mod_conf_ctrl_0_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_1))
+		spin_lock_irqsave(&mod_conf_ctrl_1_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(SWD_CLK_DIV_CTRL_SEL))
+		spin_lock_irqsave(&swd_clk_div_ctrl_sel_lock, flags);
+
+	if (clk->flags & ENABLE_REG_32BIT) {
+		regval32 = __raw_readl(clk->enable_reg);
+		regval32 |= (1 << clk->enable_bit);
+		__raw_writel(regval32, clk->enable_reg);
+	} else {
+		regval16 = __raw_readw(clk->enable_reg);
+		regval16 |= (1 << clk->enable_bit);
+		__raw_writew(regval16, clk->enable_reg);
+	}
+
+	if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_CKCTL))
+		spin_unlock_irqrestore(&arm_ckctl_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_IDLECT2))
+		spin_unlock_irqrestore(&arm_idlect2_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0))
+		spin_unlock_irqrestore(&mod_conf_ctrl_0_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_1))
+		spin_unlock_irqrestore(&mod_conf_ctrl_1_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(SWD_CLK_DIV_CTRL_SEL))
+		spin_unlock_irqrestore(&swd_clk_div_ctrl_sel_lock, flags);
+
+	return 0;
+}
+
+static void omap1_clk_disable_generic(struct omap1_clk *clk)
+{
+	unsigned long flags;
+	__u16 regval16;
+	__u32 regval32;
+
+	if (clk->enable_reg == NULL)
+		return;
+
+	/* protect clk->enable_reg from concurrent access via clk_set_rate() */
+	if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_CKCTL))
+		spin_lock_irqsave(&arm_ckctl_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_IDLECT2))
+		spin_lock_irqsave(&arm_idlect2_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0))
+		spin_lock_irqsave(&mod_conf_ctrl_0_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_1))
+		spin_lock_irqsave(&mod_conf_ctrl_1_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(SWD_CLK_DIV_CTRL_SEL))
+		spin_lock_irqsave(&swd_clk_div_ctrl_sel_lock, flags);
+
+	if (clk->flags & ENABLE_REG_32BIT) {
+		regval32 = __raw_readl(clk->enable_reg);
+		regval32 &= ~(1 << clk->enable_bit);
+		__raw_writel(regval32, clk->enable_reg);
+	} else {
+		regval16 = __raw_readw(clk->enable_reg);
+		regval16 &= ~(1 << clk->enable_bit);
+		__raw_writew(regval16, clk->enable_reg);
+	}
+
+	if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_CKCTL))
+		spin_unlock_irqrestore(&arm_ckctl_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(ARM_IDLECT2))
+		spin_unlock_irqrestore(&arm_idlect2_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0))
+		spin_unlock_irqrestore(&mod_conf_ctrl_0_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(MOD_CONF_CTRL_1))
+		spin_unlock_irqrestore(&mod_conf_ctrl_1_lock, flags);
+	else if (clk->enable_reg == OMAP1_IO_ADDRESS(SWD_CLK_DIV_CTRL_SEL))
+		spin_unlock_irqrestore(&swd_clk_div_ctrl_sel_lock, flags);
+}
+
+const struct clkops clkops_generic = {
+	.enable		= omap1_clk_enable_generic,
+	.disable	= omap1_clk_disable_generic,
+};
+
+static int omap1_clk_enable_dsp_domain(struct omap1_clk *clk)
+{
+	bool api_ck_was_enabled;
+	int retval = 0;
+
+	api_ck_was_enabled = omap1_clk_is_enabled(&api_ck_p->hw);
+	if (!api_ck_was_enabled)
+		retval = api_ck_p->ops->enable(api_ck_p);
+
+	if (!retval) {
+		retval = omap1_clk_enable_generic(clk);
+
+		if (!api_ck_was_enabled)
+			api_ck_p->ops->disable(api_ck_p);
+	}
+
+	return retval;
+}
+
+static void omap1_clk_disable_dsp_domain(struct omap1_clk *clk)
+{
+	bool api_ck_was_enabled;
+
+	api_ck_was_enabled = omap1_clk_is_enabled(&api_ck_p->hw);
+	if (!api_ck_was_enabled)
+		if (api_ck_p->ops->enable(api_ck_p) < 0)
+			return;
+
+	omap1_clk_disable_generic(clk);
+
+	if (!api_ck_was_enabled)
+		api_ck_p->ops->disable(api_ck_p);
+}
+
+const struct clkops clkops_dspck = {
+	.enable		= omap1_clk_enable_dsp_domain,
+	.disable	= omap1_clk_disable_dsp_domain,
+};
+
+/* XXX SYSC register handling does not belong in the clock framework */
+static int omap1_clk_enable_uart_functional_16xx(struct omap1_clk *clk)
+{
+	int ret;
+	struct uart_clk *uclk;
+
+	ret = omap1_clk_enable_generic(clk);
+	if (ret == 0) {
+		/* Set smart idle acknowledgement mode */
+		uclk = (struct uart_clk *)clk;
+		omap_writeb((omap_readb(uclk->sysc_addr) & ~0x10) | 8,
+			    uclk->sysc_addr);
+	}
+
+	return ret;
+}
+
+/* XXX SYSC register handling does not belong in the clock framework */
+static void omap1_clk_disable_uart_functional_16xx(struct omap1_clk *clk)
+{
+	struct uart_clk *uclk;
+
+	/* Set force idle acknowledgement mode */
+	uclk = (struct uart_clk *)clk;
+	omap_writeb((omap_readb(uclk->sysc_addr) & ~0x18), uclk->sysc_addr);
+
+	omap1_clk_disable_generic(clk);
+}
+
+/* XXX SYSC register handling does not belong in the clock framework */
+const struct clkops clkops_uart_16xx = {
+	.enable		= omap1_clk_enable_uart_functional_16xx,
+	.disable	= omap1_clk_disable_uart_functional_16xx,
+};
+
+static unsigned long omap1_clk_recalc_rate(struct clk_hw *hw, unsigned long p_rate)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw);
+
+	if (clk->recalc)
+		return clk->recalc(clk, p_rate);
+
+	return clk->rate;
+}
+
+static int omap1_clk_determine_rate(struct clk_hw *hw,
+				    struct clk_rate_request *req)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw);
+
+	if (clk->round_rate != NULL) {
+		req->rate = clk->round_rate(clk, req->rate,
+					    &req->best_parent_rate);
+
+		return 0;
+	}
+
+	req->rate = omap1_clk_recalc_rate(hw, req->best_parent_rate);
+
+	return 0;
+}
+
+static int omap1_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long p_rate)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw);
+	int  ret = -EINVAL;
+
+	if (clk->set_rate)
+		ret = clk->set_rate(clk, rate, p_rate);
+	return ret;
+}
+
+/*
+ * Omap1 clock reset and init functions
+ */
+
+static int omap1_clk_init_op(struct clk_hw *hw)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw);
+
+	if (clk->init)
+		return clk->init(clk);
+
+	return 0;
+}
+
+#ifdef CONFIG_OMAP_RESET_CLOCKS
+
+static void omap1_clk_disable_unused(struct clk_hw *hw)
+{
+	struct omap1_clk *clk = to_omap1_clk(hw);
+	const char *name = clk_hw_get_name(hw);
+
+	/* Clocks in the DSP domain need api_ck. Just assume bootloader
+	 * has not enabled any DSP clocks */
+	if (clk->enable_reg == DSP_IDLECT2) {
+		pr_info("Skipping reset check for DSP domain clock \"%s\"\n", name);
+		return;
+	}
+
+	pr_info("Disabling unused clock \"%s\"... ", name);
+	omap1_clk_disable(hw);
+	printk(" done\n");
+}
+
+#endif
+
+const struct clk_ops omap1_clk_gate_ops = {
+	.enable		= omap1_clk_enable,
+	.disable	= omap1_clk_disable,
+	.is_enabled	= omap1_clk_is_enabled,
+#ifdef CONFIG_OMAP_RESET_CLOCKS
+	.disable_unused	= omap1_clk_disable_unused,
+#endif
+};
+
+const struct clk_ops omap1_clk_rate_ops = {
+	.recalc_rate	= omap1_clk_recalc_rate,
+	.determine_rate = omap1_clk_determine_rate,
+	.set_rate	= omap1_clk_set_rate,
+	.init		= omap1_clk_init_op,
+};
+
+const struct clk_ops omap1_clk_full_ops = {
+	.enable		= omap1_clk_enable,
+	.disable	= omap1_clk_disable,
+	.is_enabled	= omap1_clk_is_enabled,
+#ifdef CONFIG_OMAP_RESET_CLOCKS
+	.disable_unused	= omap1_clk_disable_unused,
+#endif
+	.recalc_rate	= omap1_clk_recalc_rate,
+	.determine_rate = omap1_clk_determine_rate,
+	.set_rate	= omap1_clk_set_rate,
+	.init		= omap1_clk_init_op,
+};
+
+/*
+ * OMAP specific clock functions shared between omap1 and omap2
+ */
+
+/* Used for clocks that always have same value as the parent clock */
+unsigned long followparent_recalc(struct omap1_clk *clk, unsigned long p_rate)
+{
+	return p_rate;
+}
+
+/*
+ * Used for clocks that have the same value as the parent clock,
+ * divided by some factor
+ */
+unsigned long omap_fixed_divisor_recalc(struct omap1_clk *clk, unsigned long p_rate)
+{
+	WARN_ON(!clk->fixed_div);
+
+	return p_rate / clk->fixed_div;
+}
+
+/* Propagate rate to children */
+void propagate_rate(struct omap1_clk *tclk)
+{
+	struct clk *clkp;
+
+	/* depend on CCF ability to recalculate new rates across whole clock subtree */
+	if (WARN_ON(!(clk_hw_get_flags(&tclk->hw) & CLK_GET_RATE_NOCACHE)))
+		return;
+
+	clkp = clk_get_sys(NULL, clk_hw_get_name(&tclk->hw));
+	if (WARN_ON(!clkp))
+		return;
+
+	clk_get_rate(clkp);
+	clk_put(clkp);
+}
+
+const struct clk_ops omap1_clk_null_ops = {
+};
+
+/*
+ * Dummy clock
+ *
+ * Used for clock aliases that are needed on some OMAPs, but not others
+ */
+struct omap1_clk dummy_ck __refdata = {
+	.hw.init	= CLK_HW_INIT_NO_PARENT("dummy", &omap1_clk_null_ops, 0),
+};
diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h
new file mode 100644
index 000000000..16cfb2e86
--- /dev/null
+++ b/arch/arm/mach-omap1/clock.h
@@ -0,0 +1,195 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/arch/arm/mach-omap1/clock.h
+ *
+ *  Copyright (C) 2004 - 2005, 2009 Nokia corporation
+ *  Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *  Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP1_CLOCK_H
+#define __ARCH_ARM_MACH_OMAP1_CLOCK_H
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+
+struct module;
+struct omap1_clk;
+
+struct omap_clk {
+	u16				cpu;
+	struct clk_lookup		lk;
+};
+
+#define CLK(dev, con, ck, cp)		\
+	{				\
+		 .cpu = cp,		\
+		.lk = {			\
+			.dev_id = dev,	\
+			.con_id = con,	\
+			.clk_hw = ck,	\
+		},			\
+	}
+
+/* Platform flags for the clkdev-OMAP integration code */
+#define CK_310		(1 << 0)
+#define CK_7XX		(1 << 1)	/* 7xx, 850 */
+#define CK_1510		(1 << 2)
+#define CK_16XX		(1 << 3)	/* 16xx, 17xx, 5912 */
+#define CK_1710		(1 << 4)	/* 1710 extra for rate selection */
+
+/**
+ * struct clkops - some clock function pointers
+ * @enable: fn ptr that enables the current clock in hardware
+ * @disable: fn ptr that enables the current clock in hardware
+ * @allow_idle: fn ptr that enables autoidle for the current clock in hardware
+ */
+struct clkops {
+	int			(*enable)(struct omap1_clk *clk);
+	void			(*disable)(struct omap1_clk *clk);
+};
+
+/*
+ * struct clk.flags possibilities
+ *
+ * XXX document the rest of the clock flags here
+ */
+#define ENABLE_REG_32BIT	(1 << 0)	/* Use 32-bit access */
+#define CLOCK_IDLE_CONTROL	(1 << 1)
+#define CLOCK_NO_IDLE_PARENT	(1 << 2)
+
+/**
+ * struct omap1_clk - OMAP1 struct clk
+ * @hw: struct clk_hw for common clock framework integration
+ * @ops: struct clkops * for this clock
+ * @rate: current clock rate
+ * @enable_reg: register to write to enable the clock (see @enable_bit)
+ * @recalc: fn ptr that returns the clock's current rate
+ * @set_rate: fn ptr that can change the clock's current rate
+ * @round_rate: fn ptr that can round the clock's current rate
+ * @init: fn ptr to do clock-specific initialization
+ * @enable_bit: bitshift to write to enable/disable the clock (see @enable_reg)
+ * @fixed_div: when > 0, this clock's rate is its parent's rate / @fixed_div
+ * @flags: see "struct clk.flags possibilities" above
+ * @rate_offset: bitshift for rate selection bitfield (OMAP1 only)
+ */
+struct omap1_clk {
+	struct clk_hw		hw;
+	const struct clkops	*ops;
+	unsigned long		rate;
+	void __iomem		*enable_reg;
+	unsigned long		(*recalc)(struct omap1_clk *clk, unsigned long rate);
+	int			(*set_rate)(struct omap1_clk *clk, unsigned long rate,
+					    unsigned long p_rate);
+	long			(*round_rate)(struct omap1_clk *clk, unsigned long rate,
+					      unsigned long *p_rate);
+	int			(*init)(struct omap1_clk *clk);
+	u8			enable_bit;
+	u8			fixed_div;
+	u8			flags;
+	u8			rate_offset;
+};
+#define to_omap1_clk(_hw)	container_of(_hw, struct omap1_clk, hw)
+
+void propagate_rate(struct omap1_clk *clk);
+unsigned long followparent_recalc(struct omap1_clk *clk, unsigned long p_rate);
+unsigned long omap_fixed_divisor_recalc(struct omap1_clk *clk, unsigned long p_rate);
+
+extern struct omap1_clk dummy_ck;
+
+int omap1_clk_init(void);
+void omap1_clk_late_init(void);
+unsigned long omap1_ckctl_recalc(struct omap1_clk *clk, unsigned long p_rate);
+long omap1_round_sossi_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
+int omap1_set_sossi_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
+unsigned long omap1_sossi_recalc(struct omap1_clk *clk, unsigned long p_rate);
+unsigned long omap1_ckctl_recalc_dsp_domain(struct omap1_clk *clk, unsigned long p_rate);
+int omap1_clk_set_rate_dsp_domain(struct omap1_clk *clk, unsigned long rate,
+				  unsigned long p_rate);
+long omap1_round_uart_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
+int omap1_set_uart_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
+unsigned long omap1_uart_recalc(struct omap1_clk *clk, unsigned long p_rate);
+int omap1_set_ext_clk_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
+long omap1_round_ext_clk_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
+int omap1_init_ext_clk(struct omap1_clk *clk);
+int omap1_select_table_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
+long omap1_round_to_table_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
+int omap1_clk_set_rate_ckctl_arm(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
+long omap1_clk_round_rate_ckctl_arm(struct omap1_clk *clk, unsigned long rate,
+				    unsigned long *p_rate);
+
+struct uart_clk {
+	struct omap1_clk	clk;
+	unsigned long		sysc_addr;
+};
+
+/* Provide a method for preventing idling some ARM IDLECT clocks */
+struct arm_idlect1_clk {
+	struct omap1_clk	clk;
+	unsigned long		no_idle_count;
+	__u8			idlect_shift;
+};
+
+/* ARM_CKCTL bit shifts */
+#define CKCTL_PERDIV_OFFSET	0
+#define CKCTL_LCDDIV_OFFSET	2
+#define CKCTL_ARMDIV_OFFSET	4
+#define CKCTL_DSPDIV_OFFSET	6
+#define CKCTL_TCDIV_OFFSET	8
+#define CKCTL_DSPMMUDIV_OFFSET	10
+/*#define ARM_TIMXO		12*/
+#define EN_DSPCK		13
+/*#define ARM_INTHCK_SEL	14*/ /* Divide-by-2 for mpu inth_ck */
+/* DSP_CKCTL bit shifts */
+#define CKCTL_DSPPERDIV_OFFSET	0
+
+/* ARM_IDLECT2 bit shifts */
+#define EN_WDTCK	0
+#define EN_XORPCK	1
+#define EN_PERCK	2
+#define EN_LCDCK	3
+#define EN_LBCK		4 /* Not on 1610/1710 */
+/*#define EN_HSABCK	5*/
+#define EN_APICK	6
+#define EN_TIMCK	7
+#define DMACK_REQ	8
+#define EN_GPIOCK	9 /* Not on 1610/1710 */
+/*#define EN_LBFREECK	10*/
+#define EN_CKOUT_ARM	11
+
+/* ARM_IDLECT3 bit shifts */
+#define EN_OCPI_CK	0
+#define EN_TC1_CK	2
+#define EN_TC2_CK	4
+
+/* DSP_IDLECT2 bit shifts (0,1,2 are same as for ARM_IDLECT2) */
+#define EN_DSPTIMCK	5
+
+/* Various register defines for clock controls scattered around OMAP chip */
+#define SDW_MCLK_INV_BIT	2	/* In ULPD_CLKC_CTRL */
+#define USB_MCLK_EN_BIT		4	/* In ULPD_CLKC_CTRL */
+#define USB_HOST_HHC_UHOST_EN	9	/* In MOD_CONF_CTRL_0 */
+#define SWD_ULPD_PLL_CLK_REQ	1	/* In SWD_CLK_DIV_CTRL_SEL */
+#define COM_ULPD_PLL_CLK_REQ	1	/* In COM_CLK_DIV_CTRL_SEL */
+#define SWD_CLK_DIV_CTRL_SEL	0xfffe0874
+#define COM_CLK_DIV_CTRL_SEL	0xfffe0878
+#define SOFT_REQ_REG		0xfffe0834
+#define SOFT_REQ_REG2		0xfffe0880
+
+extern __u32 arm_idlect1_mask;
+extern struct omap1_clk *api_ck_p, *ck_dpll1_p, *ck_ref_p;
+
+extern const struct clkops clkops_dspck;
+extern const struct clkops clkops_uart_16xx;
+extern const struct clkops clkops_generic;
+
+/* used for passing SoC type to omap1_{select,round_to}_table_rate() */
+extern u32 cpu_mask;
+
+extern const struct clk_ops omap1_clk_null_ops;
+extern const struct clk_ops omap1_clk_gate_ops;
+extern const struct clk_ops omap1_clk_rate_ops;
+extern const struct clk_ops omap1_clk_full_ops;
+
+#endif
diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c
new file mode 100644
index 000000000..5203b047d
--- /dev/null
+++ b/arch/arm/mach-omap1/clock_data.c
@@ -0,0 +1,834 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/arch/arm/mach-omap1/clock_data.c
+ *
+ *  Copyright (C) 2004 - 2005, 2009-2010 Nokia Corporation
+ *  Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *  Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
+ *
+ * To do:
+ * - Clocks that are only available on some chips should be marked with the
+ *   chips that they are present on.
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/cpufreq.h>
+#include <linux/delay.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <asm/mach-types.h>  /* for machine_is_* */
+
+#include "soc.h"
+#include "hardware.h"
+#include "usb.h"   /* for OTG_BASE */
+#include "iomap.h"
+#include "clock.h"
+#include "sram.h"
+
+/* Some ARM_IDLECT1 bit shifts - used in struct arm_idlect1_clk */
+#define IDL_CLKOUT_ARM_SHIFT			12
+#define IDLTIM_ARM_SHIFT			9
+#define IDLAPI_ARM_SHIFT			8
+#define IDLIF_ARM_SHIFT				6
+#define IDLLB_ARM_SHIFT				4	/* undocumented? */
+#define OMAP1510_IDLLCD_ARM_SHIFT		3	/* undocumented? */
+#define IDLPER_ARM_SHIFT			2
+#define IDLXORP_ARM_SHIFT			1
+#define IDLWDT_ARM_SHIFT			0
+
+/* Some MOD_CONF_CTRL_0 bit shifts - used in struct clk.enable_bit */
+#define CONF_MOD_UART3_CLK_MODE_R		31
+#define CONF_MOD_UART2_CLK_MODE_R		30
+#define CONF_MOD_UART1_CLK_MODE_R		29
+#define CONF_MOD_MMC_SD_CLK_REQ_R		23
+#define CONF_MOD_MCBSP3_AUXON			20
+
+/* Some MOD_CONF_CTRL_1 bit shifts - used in struct clk.enable_bit */
+#define CONF_MOD_SOSSI_CLK_EN_R			16
+
+/* Some OTG_SYSCON_2-specific bit fields */
+#define OTG_SYSCON_2_UHOST_EN_SHIFT		8
+
+/* Some SOFT_REQ_REG bit fields - used in struct clk.enable_bit */
+#define SOFT_MMC2_DPLL_REQ_SHIFT	13
+#define SOFT_MMC_DPLL_REQ_SHIFT		12
+#define SOFT_UART3_DPLL_REQ_SHIFT	11
+#define SOFT_UART2_DPLL_REQ_SHIFT	10
+#define SOFT_UART1_DPLL_REQ_SHIFT	9
+#define SOFT_USB_OTG_DPLL_REQ_SHIFT	8
+#define SOFT_CAM_DPLL_REQ_SHIFT		7
+#define SOFT_COM_MCKO_REQ_SHIFT		6
+#define SOFT_PERIPH_REQ_SHIFT		5	/* sys_ck gate for UART2 ? */
+#define USB_REQ_EN_SHIFT		4
+#define SOFT_USB_REQ_SHIFT		3	/* sys_ck gate for USB host? */
+#define SOFT_SDW_REQ_SHIFT		2	/* sys_ck gate for Bluetooth? */
+#define SOFT_COM_REQ_SHIFT		1	/* sys_ck gate for com proc? */
+#define SOFT_DPLL_REQ_SHIFT		0
+
+/*
+ * Omap1 clocks
+ */
+
+static struct omap1_clk ck_ref = {
+	.hw.init	= CLK_HW_INIT_NO_PARENT("ck_ref", &omap1_clk_rate_ops, 0),
+	.rate		= 12000000,
+};
+
+static struct omap1_clk ck_dpll1 = {
+	.hw.init	= CLK_HW_INIT("ck_dpll1", "ck_ref", &omap1_clk_rate_ops,
+				      /*
+				       * force recursive refresh of rates of the clock
+				       * and its children when clk_get_rate() is called
+				       */
+				      CLK_GET_RATE_NOCACHE),
+};
+
+/*
+ * FIXME: This clock seems to be necessary but no-one has asked for its
+ * activation.  [ FIX: SoSSI, SSR ]
+ */
+static struct arm_idlect1_clk ck_dpll1out = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("ck_dpll1out", "ck_dpll1", &omap1_clk_gate_ops, 0),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL | ENABLE_REG_32BIT,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_CKOUT_ARM,
+	},
+	.idlect_shift	= IDL_CLKOUT_ARM_SHIFT,
+};
+
+static struct omap1_clk sossi_ck = {
+	.hw.init	= CLK_HW_INIT("ck_sossi", "ck_dpll1out", &omap1_clk_full_ops, 0),
+	.ops		= &clkops_generic,
+	.flags		= CLOCK_NO_IDLE_PARENT | ENABLE_REG_32BIT,
+	.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_1),
+	.enable_bit	= CONF_MOD_SOSSI_CLK_EN_R,
+	.recalc		= &omap1_sossi_recalc,
+	.round_rate	= &omap1_round_sossi_rate,
+	.set_rate	= &omap1_set_sossi_rate,
+};
+
+static struct omap1_clk arm_ck = {
+	.hw.init	= CLK_HW_INIT("arm_ck", "ck_dpll1", &omap1_clk_rate_ops, 0),
+	.rate_offset	= CKCTL_ARMDIV_OFFSET,
+	.recalc		= &omap1_ckctl_recalc,
+	.round_rate	= omap1_clk_round_rate_ckctl_arm,
+	.set_rate	= omap1_clk_set_rate_ckctl_arm,
+};
+
+static struct arm_idlect1_clk armper_ck = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("armper_ck", "ck_dpll1", &omap1_clk_full_ops,
+					      CLK_IS_CRITICAL),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_PERCK,
+		.rate_offset	= CKCTL_PERDIV_OFFSET,
+		.recalc		= &omap1_ckctl_recalc,
+		.round_rate	= omap1_clk_round_rate_ckctl_arm,
+		.set_rate	= omap1_clk_set_rate_ckctl_arm,
+	},
+	.idlect_shift	= IDLPER_ARM_SHIFT,
+};
+
+/*
+ * FIXME: This clock seems to be necessary but no-one has asked for its
+ * activation.  [ GPIO code for 1510 ]
+ */
+static struct omap1_clk arm_gpio_ck = {
+	.hw.init	= CLK_HW_INIT("ick", "ck_dpll1", &omap1_clk_gate_ops, CLK_IS_CRITICAL),
+	.ops		= &clkops_generic,
+	.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+	.enable_bit	= EN_GPIOCK,
+};
+
+static struct arm_idlect1_clk armxor_ck = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("armxor_ck", "ck_ref", &omap1_clk_gate_ops,
+					      CLK_IS_CRITICAL),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_XORPCK,
+	},
+	.idlect_shift	= IDLXORP_ARM_SHIFT,
+};
+
+static struct arm_idlect1_clk armtim_ck = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("armtim_ck", "ck_ref", &omap1_clk_gate_ops,
+					      CLK_IS_CRITICAL),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_TIMCK,
+	},
+	.idlect_shift	= IDLTIM_ARM_SHIFT,
+};
+
+static struct arm_idlect1_clk armwdt_ck = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("armwdt_ck", "ck_ref", &omap1_clk_full_ops, 0),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_WDTCK,
+		.fixed_div	= 14,
+		.recalc		= &omap_fixed_divisor_recalc,
+	},
+	.idlect_shift	= IDLWDT_ARM_SHIFT,
+};
+
+static struct omap1_clk arminth_ck16xx = {
+	.hw.init	= CLK_HW_INIT("arminth_ck", "arm_ck", &omap1_clk_null_ops, 0),
+	/* Note: On 16xx the frequency can be divided by 2 by programming
+	 * ARM_CKCTL:ARM_INTHCK_SEL(14) to 1
+	 *
+	 * 1510 version is in TC clocks.
+	 */
+};
+
+static struct omap1_clk dsp_ck = {
+	.hw.init	= CLK_HW_INIT("dsp_ck", "ck_dpll1", &omap1_clk_full_ops, 0),
+	.ops		= &clkops_generic,
+	.enable_reg	= OMAP1_IO_ADDRESS(ARM_CKCTL),
+	.enable_bit	= EN_DSPCK,
+	.rate_offset	= CKCTL_DSPDIV_OFFSET,
+	.recalc		= &omap1_ckctl_recalc,
+	.round_rate	= omap1_clk_round_rate_ckctl_arm,
+	.set_rate	= omap1_clk_set_rate_ckctl_arm,
+};
+
+static struct omap1_clk dspmmu_ck = {
+	.hw.init	= CLK_HW_INIT("dspmmu_ck", "ck_dpll1", &omap1_clk_rate_ops, 0),
+	.rate_offset	= CKCTL_DSPMMUDIV_OFFSET,
+	.recalc		= &omap1_ckctl_recalc,
+	.round_rate	= omap1_clk_round_rate_ckctl_arm,
+	.set_rate	= omap1_clk_set_rate_ckctl_arm,
+};
+
+static struct omap1_clk dspper_ck = {
+	.hw.init	= CLK_HW_INIT("dspper_ck", "ck_dpll1", &omap1_clk_full_ops, 0),
+	.ops		= &clkops_dspck,
+	.enable_reg	= DSP_IDLECT2,
+	.enable_bit	= EN_PERCK,
+	.rate_offset	= CKCTL_PERDIV_OFFSET,
+	.recalc		= &omap1_ckctl_recalc_dsp_domain,
+	.round_rate	= omap1_clk_round_rate_ckctl_arm,
+	.set_rate	= &omap1_clk_set_rate_dsp_domain,
+};
+
+static struct omap1_clk dspxor_ck = {
+	.hw.init	= CLK_HW_INIT("dspxor_ck", "ck_ref", &omap1_clk_gate_ops, 0),
+	.ops		= &clkops_dspck,
+	.enable_reg	= DSP_IDLECT2,
+	.enable_bit	= EN_XORPCK,
+};
+
+static struct omap1_clk dsptim_ck = {
+	.hw.init	= CLK_HW_INIT("dsptim_ck", "ck_ref", &omap1_clk_gate_ops, 0),
+	.ops		= &clkops_dspck,
+	.enable_reg	= DSP_IDLECT2,
+	.enable_bit	= EN_DSPTIMCK,
+};
+
+static struct arm_idlect1_clk tc_ck = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("tc_ck", "ck_dpll1", &omap1_clk_rate_ops, 0),
+		.flags		= CLOCK_IDLE_CONTROL,
+		.rate_offset	= CKCTL_TCDIV_OFFSET,
+		.recalc		= &omap1_ckctl_recalc,
+		.round_rate	= omap1_clk_round_rate_ckctl_arm,
+		.set_rate	= omap1_clk_set_rate_ckctl_arm,
+	},
+	.idlect_shift	= IDLIF_ARM_SHIFT,
+};
+
+static struct omap1_clk arminth_ck1510 = {
+	.hw.init	= CLK_HW_INIT("arminth_ck", "tc_ck", &omap1_clk_null_ops, 0),
+	/* Note: On 1510 the frequency follows TC_CK
+	 *
+	 * 16xx version is in MPU clocks.
+	 */
+};
+
+static struct omap1_clk tipb_ck = {
+	/* No-idle controlled by "tc_ck" */
+	.hw.init	= CLK_HW_INIT("tipb_ck", "tc_ck", &omap1_clk_null_ops, 0),
+};
+
+static struct omap1_clk l3_ocpi_ck = {
+	/* No-idle controlled by "tc_ck" */
+	.hw.init	= CLK_HW_INIT("l3_ocpi_ck", "tc_ck", &omap1_clk_gate_ops, 0),
+	.ops		= &clkops_generic,
+	.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT3),
+	.enable_bit	= EN_OCPI_CK,
+};
+
+static struct omap1_clk tc1_ck = {
+	.hw.init	= CLK_HW_INIT("tc1_ck", "tc_ck", &omap1_clk_gate_ops, 0),
+	.ops		= &clkops_generic,
+	.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT3),
+	.enable_bit	= EN_TC1_CK,
+};
+
+/*
+ * FIXME: This clock seems to be necessary but no-one has asked for its
+ * activation.  [ pm.c (SRAM), CCP, Camera ]
+ */
+
+static struct omap1_clk tc2_ck = {
+	.hw.init	= CLK_HW_INIT("tc2_ck", "tc_ck", &omap1_clk_gate_ops, CLK_IS_CRITICAL),
+	.ops		= &clkops_generic,
+	.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT3),
+	.enable_bit	= EN_TC2_CK,
+};
+
+static struct omap1_clk dma_ck = {
+	/* No-idle controlled by "tc_ck" */
+	.hw.init	= CLK_HW_INIT("dma_ck", "tc_ck", &omap1_clk_null_ops, 0),
+};
+
+static struct omap1_clk dma_lcdfree_ck = {
+	.hw.init	= CLK_HW_INIT("dma_lcdfree_ck", "tc_ck", &omap1_clk_null_ops, 0),
+};
+
+static struct arm_idlect1_clk api_ck = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("api_ck", "tc_ck", &omap1_clk_gate_ops, 0),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_APICK,
+	},
+	.idlect_shift	= IDLAPI_ARM_SHIFT,
+};
+
+static struct arm_idlect1_clk lb_ck = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("lb_ck", "tc_ck", &omap1_clk_gate_ops, 0),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_LBCK,
+	},
+	.idlect_shift	= IDLLB_ARM_SHIFT,
+};
+
+static struct omap1_clk rhea1_ck = {
+	.hw.init	= CLK_HW_INIT("rhea1_ck", "tc_ck", &omap1_clk_null_ops, 0),
+};
+
+static struct omap1_clk rhea2_ck = {
+	.hw.init	= CLK_HW_INIT("rhea2_ck", "tc_ck", &omap1_clk_null_ops, 0),
+};
+
+static struct omap1_clk lcd_ck_16xx = {
+	.hw.init	= CLK_HW_INIT("lcd_ck", "ck_dpll1", &omap1_clk_full_ops, 0),
+	.ops		= &clkops_generic,
+	.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+	.enable_bit	= EN_LCDCK,
+	.rate_offset	= CKCTL_LCDDIV_OFFSET,
+	.recalc		= &omap1_ckctl_recalc,
+	.round_rate	= omap1_clk_round_rate_ckctl_arm,
+	.set_rate	= omap1_clk_set_rate_ckctl_arm,
+};
+
+static struct arm_idlect1_clk lcd_ck_1510 = {
+	.clk = {
+		.hw.init	= CLK_HW_INIT("lcd_ck", "ck_dpll1", &omap1_clk_full_ops, 0),
+		.ops		= &clkops_generic,
+		.flags		= CLOCK_IDLE_CONTROL,
+		.enable_reg	= OMAP1_IO_ADDRESS(ARM_IDLECT2),
+		.enable_bit	= EN_LCDCK,
+		.rate_offset	= CKCTL_LCDDIV_OFFSET,
+		.recalc		= &omap1_ckctl_recalc,
+		.round_rate	= omap1_clk_round_rate_ckctl_arm,
+		.set_rate	= omap1_clk_set_rate_ckctl_arm,
+	},
+	.idlect_shift	= OMAP1510_IDLLCD_ARM_SHIFT,
+};
+
+
+/*
+ * XXX The enable_bit here is misused - it simply switches between 12MHz
+ * and 48MHz.  Reimplement with clk_mux.
+ *
+ * XXX does this need SYSC register handling?
+ */
+static struct omap1_clk uart1_1510 = {
+	/* Direct from ULPD, no real parent */
+	.hw.init	= CLK_HW_INIT("uart1_ck", "armper_ck", &omap1_clk_full_ops, 0),
+	.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+	.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+	.enable_bit	= CONF_MOD_UART1_CLK_MODE_R,
+	.round_rate	= &omap1_round_uart_rate,
+	.set_rate	= &omap1_set_uart_rate,
+	.recalc		= &omap1_uart_recalc,
+};
+
+/*
+ * XXX The enable_bit here is misused - it simply switches between 12MHz
+ * and 48MHz.  Reimplement with clk_mux.
+ *
+ * XXX SYSC register handling does not belong in the clock framework
+ */
+static struct uart_clk uart1_16xx = {
+	.clk	= {
+		.ops		= &clkops_uart_16xx,
+		/* Direct from ULPD, no real parent */
+		.hw.init	= CLK_HW_INIT("uart1_ck", "armper_ck", &omap1_clk_full_ops, 0),
+		.rate		= 48000000,
+		.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+		.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+		.enable_bit	= CONF_MOD_UART1_CLK_MODE_R,
+	},
+	.sysc_addr	= 0xfffb0054,
+};
+
+/*
+ * XXX The enable_bit here is misused - it simply switches between 12MHz
+ * and 48MHz.  Reimplement with clk_mux.
+ *
+ * XXX does this need SYSC register handling?
+ */
+static struct omap1_clk uart2_ck = {
+	/* Direct from ULPD, no real parent */
+	.hw.init	= CLK_HW_INIT("uart2_ck", "armper_ck", &omap1_clk_full_ops, 0),
+	.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+	.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+	.enable_bit	= CONF_MOD_UART2_CLK_MODE_R,
+	.round_rate	= &omap1_round_uart_rate,
+	.set_rate	= &omap1_set_uart_rate,
+	.recalc		= &omap1_uart_recalc,
+};
+
+/*
+ * XXX The enable_bit here is misused - it simply switches between 12MHz
+ * and 48MHz.  Reimplement with clk_mux.
+ *
+ * XXX does this need SYSC register handling?
+ */
+static struct omap1_clk uart3_1510 = {
+	/* Direct from ULPD, no real parent */
+	.hw.init	= CLK_HW_INIT("uart3_ck", "armper_ck", &omap1_clk_full_ops, 0),
+	.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+	.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+	.enable_bit	= CONF_MOD_UART3_CLK_MODE_R,
+	.round_rate	= &omap1_round_uart_rate,
+	.set_rate	= &omap1_set_uart_rate,
+	.recalc		= &omap1_uart_recalc,
+};
+
+/*
+ * XXX The enable_bit here is misused - it simply switches between 12MHz
+ * and 48MHz.  Reimplement with clk_mux.
+ *
+ * XXX SYSC register handling does not belong in the clock framework
+ */
+static struct uart_clk uart3_16xx = {
+	.clk	= {
+		.ops		= &clkops_uart_16xx,
+		/* Direct from ULPD, no real parent */
+		.hw.init	= CLK_HW_INIT("uart3_ck", "armper_ck", &omap1_clk_full_ops, 0),
+		.rate		= 48000000,
+		.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+		.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+		.enable_bit	= CONF_MOD_UART3_CLK_MODE_R,
+	},
+	.sysc_addr	= 0xfffb9854,
+};
+
+static struct omap1_clk usb_clko = {	/* 6 MHz output on W4_USB_CLKO */
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("usb_clko", &omap1_clk_full_ops, 0),
+	.rate		= 6000000,
+	.flags		= ENABLE_REG_32BIT,
+	.enable_reg	= OMAP1_IO_ADDRESS(ULPD_CLOCK_CTRL),
+	.enable_bit	= USB_MCLK_EN_BIT,
+};
+
+static struct omap1_clk usb_hhc_ck1510 = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("usb_hhc_ck", &omap1_clk_full_ops, 0),
+	.rate		= 48000000, /* Actually 2 clocks, 12MHz and 48MHz */
+	.flags		= ENABLE_REG_32BIT,
+	.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+	.enable_bit	= USB_HOST_HHC_UHOST_EN,
+};
+
+static struct omap1_clk usb_hhc_ck16xx = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("usb_hhc_ck", &omap1_clk_full_ops, 0),
+	.rate		= 48000000,
+	/* OTG_SYSCON_2.OTG_PADEN == 0 (not 1510-compatible) */
+	.flags		= ENABLE_REG_32BIT,
+	.enable_reg	= OMAP1_IO_ADDRESS(OTG_BASE + 0x08), /* OTG_SYSCON_2 */
+	.enable_bit	= OTG_SYSCON_2_UHOST_EN_SHIFT
+};
+
+static struct omap1_clk usb_dc_ck = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("usb_dc_ck", &omap1_clk_full_ops, 0),
+	.rate		= 48000000,
+	.enable_reg	= OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+	.enable_bit	= SOFT_USB_OTG_DPLL_REQ_SHIFT,
+};
+
+static struct omap1_clk uart1_7xx = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("uart1_ck", &omap1_clk_full_ops, 0),
+	.rate		= 12000000,
+	.enable_reg	= OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+	.enable_bit	= 9,
+};
+
+static struct omap1_clk uart2_7xx = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("uart2_ck", &omap1_clk_full_ops, 0),
+	.rate		= 12000000,
+	.enable_reg	= OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+	.enable_bit	= 11,
+};
+
+static struct omap1_clk mclk_1510 = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent. May be enabled by ext hardware. */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("mclk", &omap1_clk_full_ops, 0),
+	.rate		= 12000000,
+	.enable_reg	= OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+	.enable_bit	= SOFT_COM_MCKO_REQ_SHIFT,
+};
+
+static struct omap1_clk mclk_16xx = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent. May be enabled by ext hardware. */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("mclk", &omap1_clk_full_ops, 0),
+	.enable_reg	= OMAP1_IO_ADDRESS(COM_CLK_DIV_CTRL_SEL),
+	.enable_bit	= COM_ULPD_PLL_CLK_REQ,
+	.set_rate	= &omap1_set_ext_clk_rate,
+	.round_rate	= &omap1_round_ext_clk_rate,
+	.init		= &omap1_init_ext_clk,
+};
+
+static struct omap1_clk bclk_1510 = {
+	/* Direct from ULPD, no parent. May be enabled by ext hardware. */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("bclk", &omap1_clk_rate_ops, 0),
+	.rate		= 12000000,
+};
+
+static struct omap1_clk bclk_16xx = {
+	.ops		= &clkops_generic,
+	/* Direct from ULPD, no parent. May be enabled by ext hardware. */
+	.hw.init	= CLK_HW_INIT_NO_PARENT("bclk", &omap1_clk_full_ops, 0),
+	.enable_reg	= OMAP1_IO_ADDRESS(SWD_CLK_DIV_CTRL_SEL),
+	.enable_bit	= SWD_ULPD_PLL_CLK_REQ,
+	.set_rate	= &omap1_set_ext_clk_rate,
+	.round_rate	= &omap1_round_ext_clk_rate,
+	.init		= &omap1_init_ext_clk,
+};
+
+static struct omap1_clk mmc1_ck = {
+	.ops		= &clkops_generic,
+	/* Functional clock is direct from ULPD, interface clock is ARMPER */
+	.hw.init	= CLK_HW_INIT("mmc1_ck", "armper_ck", &omap1_clk_full_ops, 0),
+	.rate		= 48000000,
+	.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+	.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+	.enable_bit	= CONF_MOD_MMC_SD_CLK_REQ_R,
+};
+
+/*
+ * XXX MOD_CONF_CTRL_0 bit 20 is defined in the 1510 TRM as
+ * CONF_MOD_MCBSP3_AUXON ??
+ */
+static struct omap1_clk mmc2_ck = {
+	.ops		= &clkops_generic,
+	/* Functional clock is direct from ULPD, interface clock is ARMPER */
+	.hw.init	= CLK_HW_INIT("mmc2_ck", "armper_ck", &omap1_clk_full_ops, 0),
+	.rate		= 48000000,
+	.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+	.enable_reg	= OMAP1_IO_ADDRESS(MOD_CONF_CTRL_0),
+	.enable_bit	= 20,
+};
+
+static struct omap1_clk mmc3_ck = {
+	.ops		= &clkops_generic,
+	/* Functional clock is direct from ULPD, interface clock is ARMPER */
+	.hw.init	= CLK_HW_INIT("mmc3_ck", "armper_ck", &omap1_clk_full_ops, 0),
+	.rate		= 48000000,
+	.flags		= ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+	.enable_reg	= OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+	.enable_bit	= SOFT_MMC_DPLL_REQ_SHIFT,
+};
+
+static struct omap1_clk virtual_ck_mpu = {
+	/* Is smarter alias for arm_ck */
+	.hw.init	= CLK_HW_INIT("mpu", "arm_ck", &omap1_clk_rate_ops, 0),
+	.recalc		= &followparent_recalc,
+	.set_rate	= &omap1_select_table_rate,
+	.round_rate	= &omap1_round_to_table_rate,
+};
+
+/* virtual functional clock domain for I2C. Just for making sure that ARMXOR_CK
+remains active during MPU idle whenever this is enabled */
+static struct omap1_clk i2c_fck = {
+	.hw.init	= CLK_HW_INIT("i2c_fck", "armxor_ck", &omap1_clk_gate_ops, 0),
+	.flags		= CLOCK_NO_IDLE_PARENT,
+};
+
+static struct omap1_clk i2c_ick = {
+	.hw.init	= CLK_HW_INIT("i2c_ick", "armper_ck", &omap1_clk_gate_ops, 0),
+	.flags		= CLOCK_NO_IDLE_PARENT,
+};
+
+/*
+ * clkdev integration
+ */
+
+static struct omap_clk omap_clks[] = {
+	/* non-ULPD clocks */
+	CLK(NULL,	"ck_ref",	&ck_ref.hw,	CK_16XX | CK_1510 | CK_310 | CK_7XX),
+	CLK(NULL,	"ck_dpll1",	&ck_dpll1.hw,	CK_16XX | CK_1510 | CK_310 | CK_7XX),
+	/* CK_GEN1 clocks */
+	CLK(NULL,	"ck_dpll1out",	&ck_dpll1out.clk.hw, CK_16XX),
+	CLK(NULL,	"ck_sossi",	&sossi_ck.hw,	CK_16XX),
+	CLK(NULL,	"arm_ck",	&arm_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"armper_ck",	&armper_ck.clk.hw, CK_16XX | CK_1510 | CK_310),
+	CLK("omap_gpio.0", "ick",	&arm_gpio_ck.hw, CK_1510 | CK_310),
+	CLK(NULL,	"armxor_ck",	&armxor_ck.clk.hw, CK_16XX | CK_1510 | CK_310 | CK_7XX),
+	CLK(NULL,	"armtim_ck",	&armtim_ck.clk.hw, CK_16XX | CK_1510 | CK_310),
+	CLK("omap_wdt",	"fck",		&armwdt_ck.clk.hw, CK_16XX | CK_1510 | CK_310),
+	CLK("omap_wdt",	"ick",		&armper_ck.clk.hw, CK_16XX),
+	CLK("omap_wdt", "ick",		&dummy_ck.hw,	CK_1510 | CK_310),
+	CLK(NULL,	"arminth_ck",	&arminth_ck1510.hw, CK_1510 | CK_310),
+	CLK(NULL,	"arminth_ck",	&arminth_ck16xx.hw, CK_16XX),
+	/* CK_GEN2 clocks */
+	CLK(NULL,	"dsp_ck",	&dsp_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"dspmmu_ck",	&dspmmu_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"dspper_ck",	&dspper_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"dspxor_ck",	&dspxor_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"dsptim_ck",	&dsptim_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	/* CK_GEN3 clocks */
+	CLK(NULL,	"tc_ck",	&tc_ck.clk.hw,	CK_16XX | CK_1510 | CK_310 | CK_7XX),
+	CLK(NULL,	"tipb_ck",	&tipb_ck.hw,	CK_1510 | CK_310),
+	CLK(NULL,	"l3_ocpi_ck",	&l3_ocpi_ck.hw,	CK_16XX | CK_7XX),
+	CLK(NULL,	"tc1_ck",	&tc1_ck.hw,	CK_16XX),
+	CLK(NULL,	"tc2_ck",	&tc2_ck.hw,	CK_16XX),
+	CLK(NULL,	"dma_ck",	&dma_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"dma_lcdfree_ck", &dma_lcdfree_ck.hw, CK_16XX),
+	CLK(NULL,	"api_ck",	&api_ck.clk.hw,	CK_16XX | CK_1510 | CK_310 | CK_7XX),
+	CLK(NULL,	"lb_ck",	&lb_ck.clk.hw,	CK_1510 | CK_310),
+	CLK(NULL,	"rhea1_ck",	&rhea1_ck.hw,	CK_16XX),
+	CLK(NULL,	"rhea2_ck",	&rhea2_ck.hw,	CK_16XX),
+	CLK(NULL,	"lcd_ck",	&lcd_ck_16xx.hw, CK_16XX | CK_7XX),
+	CLK(NULL,	"lcd_ck",	&lcd_ck_1510.clk.hw, CK_1510 | CK_310),
+	/* ULPD clocks */
+	CLK(NULL,	"uart1_ck",	&uart1_1510.hw,	CK_1510 | CK_310),
+	CLK(NULL,	"uart1_ck",	&uart1_16xx.clk.hw, CK_16XX),
+	CLK(NULL,	"uart1_ck",	&uart1_7xx.hw,	CK_7XX),
+	CLK(NULL,	"uart2_ck",	&uart2_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"uart2_ck",	&uart2_7xx.hw,	CK_7XX),
+	CLK(NULL,	"uart3_ck",	&uart3_1510.hw,	CK_1510 | CK_310),
+	CLK(NULL,	"uart3_ck",	&uart3_16xx.clk.hw, CK_16XX),
+	CLK(NULL,	"usb_clko",	&usb_clko.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK(NULL,	"usb_hhc_ck",	&usb_hhc_ck1510.hw, CK_1510 | CK_310),
+	CLK(NULL,	"usb_hhc_ck",	&usb_hhc_ck16xx.hw, CK_16XX),
+	CLK(NULL,	"usb_dc_ck",	&usb_dc_ck.hw,	CK_16XX | CK_7XX),
+	CLK(NULL,	"mclk",		&mclk_1510.hw,	CK_1510 | CK_310),
+	CLK(NULL,	"mclk",		&mclk_16xx.hw,	CK_16XX),
+	CLK(NULL,	"bclk",		&bclk_1510.hw,	CK_1510 | CK_310),
+	CLK(NULL,	"bclk",		&bclk_16xx.hw,	CK_16XX),
+	CLK("mmci-omap.0", "fck",	&mmc1_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK("mmci-omap.0", "fck",	&mmc3_ck.hw,	CK_7XX),
+	CLK("mmci-omap.0", "ick",	&armper_ck.clk.hw, CK_16XX | CK_1510 | CK_310 | CK_7XX),
+	CLK("mmci-omap.1", "fck",	&mmc2_ck.hw,	CK_16XX),
+	CLK("mmci-omap.1", "ick",	&armper_ck.clk.hw, CK_16XX),
+	/* Virtual clocks */
+	CLK(NULL,	"mpu",		&virtual_ck_mpu.hw, CK_16XX | CK_1510 | CK_310),
+	CLK("omap_i2c.1", "fck",	&i2c_fck.hw,	CK_16XX | CK_1510 | CK_310 | CK_7XX),
+	CLK("omap_i2c.1", "ick",	&i2c_ick.hw,	CK_16XX),
+	CLK("omap_i2c.1", "ick",	&dummy_ck.hw,	CK_1510 | CK_310 | CK_7XX),
+	CLK("omap1_spi100k.1", "fck",	&dummy_ck.hw,	CK_7XX),
+	CLK("omap1_spi100k.1", "ick",	&dummy_ck.hw,	CK_7XX),
+	CLK("omap1_spi100k.2", "fck",	&dummy_ck.hw,	CK_7XX),
+	CLK("omap1_spi100k.2", "ick",	&dummy_ck.hw,	CK_7XX),
+	CLK("omap_uwire", "fck",	&armxor_ck.clk.hw, CK_16XX | CK_1510 | CK_310),
+	CLK("omap-mcbsp.1", "ick",	&dspper_ck.hw,	CK_16XX),
+	CLK("omap-mcbsp.1", "ick",	&dummy_ck.hw,	CK_1510 | CK_310),
+	CLK("omap-mcbsp.2", "ick",	&armper_ck.clk.hw, CK_16XX),
+	CLK("omap-mcbsp.2", "ick",	&dummy_ck.hw,	CK_1510 | CK_310),
+	CLK("omap-mcbsp.3", "ick",	&dspper_ck.hw,	CK_16XX),
+	CLK("omap-mcbsp.3", "ick",	&dummy_ck.hw,	CK_1510 | CK_310),
+	CLK("omap-mcbsp.1", "fck",	&dspxor_ck.hw,	CK_16XX | CK_1510 | CK_310),
+	CLK("omap-mcbsp.2", "fck",	&armper_ck.clk.hw, CK_16XX | CK_1510 | CK_310),
+	CLK("omap-mcbsp.3", "fck",	&dspxor_ck.hw,	CK_16XX | CK_1510 | CK_310),
+};
+
+/*
+ * init
+ */
+
+static void __init omap1_show_rates(void)
+{
+	pr_notice("Clocking rate (xtal/DPLL1/MPU): %ld.%01ld/%ld.%01ld/%ld.%01ld MHz\n",
+		  ck_ref.rate / 1000000, (ck_ref.rate / 100000) % 10,
+		  ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10,
+		  arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);
+}
+
+u32 cpu_mask;
+
+int __init omap1_clk_init(void)
+{
+	struct omap_clk *c;
+	u32 reg;
+
+#ifdef CONFIG_DEBUG_LL
+	/* Make sure UART clocks are enabled early */
+	if (cpu_is_omap16xx())
+		omap_writel(omap_readl(MOD_CONF_CTRL_0) |
+			    (1 << CONF_MOD_UART1_CLK_MODE_R) |
+			    (1 << CONF_MOD_UART3_CLK_MODE_R), MOD_CONF_CTRL_0);
+#endif
+
+	/* USB_REQ_EN will be disabled later if necessary (usb_dc_ck) */
+	reg = omap_readw(SOFT_REQ_REG) & (1 << 4);
+	omap_writew(reg, SOFT_REQ_REG);
+	if (!cpu_is_omap15xx())
+		omap_writew(0, SOFT_REQ_REG2);
+
+	/* By default all idlect1 clocks are allowed to idle */
+	arm_idlect1_mask = ~0;
+
+	cpu_mask = 0;
+	if (cpu_is_omap1710())
+		cpu_mask |= CK_1710;
+	if (cpu_is_omap16xx())
+		cpu_mask |= CK_16XX;
+	if (cpu_is_omap1510())
+		cpu_mask |= CK_1510;
+	if (cpu_is_omap310())
+		cpu_mask |= CK_310;
+
+	/* Pointers to these clocks are needed by code in clock.c */
+	api_ck_p = &api_ck.clk;
+	ck_dpll1_p = &ck_dpll1;
+	ck_ref_p = &ck_ref;
+
+	pr_info("Clocks: ARM_SYSST: 0x%04x DPLL_CTL: 0x%04x ARM_CKCTL: 0x%04x\n",
+		omap_readw(ARM_SYSST), omap_readw(DPLL_CTL),
+		omap_readw(ARM_CKCTL));
+
+	/* We want to be in synchronous scalable mode */
+	omap_writew(0x1000, ARM_SYSST);
+
+
+	/*
+	 * Initially use the values set by bootloader. Determine PLL rate and
+	 * recalculate dependent clocks as if kernel had changed PLL or
+	 * divisors. See also omap1_clk_late_init() that can reprogram dpll1
+	 * after the SRAM is initialized.
+	 */
+	{
+		unsigned pll_ctl_val = omap_readw(DPLL_CTL);
+
+		ck_dpll1.rate = ck_ref.rate; /* Base xtal rate */
+		if (pll_ctl_val & 0x10) {
+			/* PLL enabled, apply multiplier and divisor */
+			if (pll_ctl_val & 0xf80)
+				ck_dpll1.rate *= (pll_ctl_val & 0xf80) >> 7;
+			ck_dpll1.rate /= ((pll_ctl_val & 0x60) >> 5) + 1;
+		} else {
+			/* PLL disabled, apply bypass divisor */
+			switch (pll_ctl_val & 0xc) {
+			case 0:
+				break;
+			case 0x4:
+				ck_dpll1.rate /= 2;
+				break;
+			default:
+				ck_dpll1.rate /= 4;
+				break;
+			}
+		}
+	}
+
+	/* Amstrad Delta wants BCLK high when inactive */
+	if (machine_is_ams_delta())
+		omap_writel(omap_readl(ULPD_CLOCK_CTRL) |
+				(1 << SDW_MCLK_INV_BIT),
+				ULPD_CLOCK_CTRL);
+
+	/* Turn off DSP and ARM_TIMXO. Make sure ARM_INTHCK is not divided */
+	omap_writew(omap_readw(ARM_CKCTL) & 0x0fff, ARM_CKCTL);
+
+	/* Put DSP/MPUI into reset until needed */
+	omap_writew(0, ARM_RSTCT1);
+	omap_writew(1, ARM_RSTCT2);
+	omap_writew(0x400, ARM_IDLECT1);
+
+	/*
+	 * According to OMAP5910 Erratum SYS_DMA_1, bit DMACK_REQ (bit 8)
+	 * of the ARM_IDLECT2 register must be set to zero. The power-on
+	 * default value of this bit is one.
+	 */
+	omap_writew(0x0000, ARM_IDLECT2);	/* Turn LCD clock off also */
+
+	for (c = omap_clks; c < omap_clks + ARRAY_SIZE(omap_clks); c++) {
+		if (!(c->cpu & cpu_mask))
+			continue;
+
+		if (c->lk.clk_hw->init) { /* NULL if provider already registered */
+			const struct clk_init_data *init = c->lk.clk_hw->init;
+			const char *name = c->lk.clk_hw->init->name;
+			int err;
+
+			err = clk_hw_register(NULL, c->lk.clk_hw);
+			if (err < 0) {
+				pr_err("failed to register clock \"%s\"! (%d)\n", name, err);
+				/* may be tried again, restore init data */
+				c->lk.clk_hw->init = init;
+				continue;
+			}
+		}
+
+		clk_hw_register_clkdev(c->lk.clk_hw, c->lk.con_id, c->lk.dev_id);
+	}
+
+	omap1_show_rates();
+
+	return 0;
+}
+
+#define OMAP1_DPLL1_SANE_VALUE	60000000
+
+void __init omap1_clk_late_init(void)
+{
+	unsigned long rate = ck_dpll1.rate;
+
+	/* Find the highest supported frequency and enable it */
+	if (omap1_select_table_rate(&virtual_ck_mpu, ~0, arm_ck.rate)) {
+		pr_err("System frequencies not set, using default. Check your config.\n");
+		/*
+		 * Reprogramming the DPLL is tricky, it must be done from SRAM.
+		 */
+		omap_sram_reprogram_clock(0x2290, 0x0005);
+		ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE;
+	}
+	propagate_rate(&ck_dpll1);
+	omap1_show_rates();
+	loops_per_jiffy = cpufreq_scale(loops_per_jiffy, rate, ck_dpll1.rate);
+}
diff --git a/arch/arm/mach-omap1/common.h b/arch/arm/mach-omap1/common.h
new file mode 100644
index 000000000..c0f6e231f
--- /dev/null
+++ b/arch/arm/mach-omap1/common.h
@@ -0,0 +1,81 @@
+/*
+ *
+ * Header for code common to all OMAP1 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_OMAP1_COMMON_H
+#define __ARCH_ARM_MACH_OMAP1_COMMON_H
+
+#include <linux/platform_data/i2c-omap.h>
+#include <linux/reboot.h>
+
+#include <asm/exception.h>
+
+#include "irqs.h"
+#include "soc.h"
+#include "i2c.h"
+
+extern const struct software_node omap16xx_mpu_gpio_swnode;
+extern const struct software_node omap16xx_gpio1_swnode;
+
+#ifdef CONFIG_OMAP_SERIAL_WAKE
+int omap_serial_wakeup_init(void);
+#else
+static inline int omap_serial_wakeup_init(void)
+{
+	return 0;
+}
+#endif
+
+void omap1_map_io(void);
+void omap1_init_early(void);
+void omap1_init_irq(void);
+void __exception_irq_entry omap1_handle_irq(struct pt_regs *regs);
+void omap1_init_late(void);
+void omap1_restart(enum reboot_mode, const char *);
+
+extern void __init omap_check_revision(void);
+
+struct nand_chip;
+extern void omap1_nand_cmd_ctl(struct nand_chip *this, int cmd,
+			       unsigned int ctrl);
+
+extern void omap1_timer_init(void);
+#ifdef CONFIG_OMAP_32K_TIMER
+extern int omap_32k_timer_init(void);
+#else
+static inline int __init omap_32k_timer_init(void)
+{
+	return -ENODEV;
+}
+#endif
+
+#ifdef CONFIG_ARCH_OMAP16XX
+extern int ocpi_enable(void);
+#else
+static inline int ocpi_enable(void) { return 0; }
+#endif
+
+extern u32 omap1_get_reset_sources(void);
+
+#endif /* __ARCH_ARM_MACH_OMAP1_COMMON_H */
diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
new file mode 100644
index 000000000..8b2c5f911
--- /dev/null
+++ b/arch/arm/mach-omap1/devices.c
@@ -0,0 +1,363 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * linux/arch/arm/mach-omap1/devices.c
+ *
+ * OMAP1 platform device setup/initialization
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+
+#include <linux/platform_data/omap-wd-timer.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <asm/mach/map.h>
+
+#include "tc.h"
+#include "mux.h"
+
+#include "hardware.h"
+#include "common.h"
+#include "clock.h"
+#include "mmc.h"
+#include "sram.h"
+
+#if IS_ENABLED(CONFIG_RTC_DRV_OMAP)
+
+#define	OMAP_RTC_BASE		0xfffb4800
+
+static struct resource rtc_resources[] = {
+	{
+		.start		= OMAP_RTC_BASE,
+		.end		= OMAP_RTC_BASE + 0x5f,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= INT_RTC_TIMER,
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		.start		= INT_RTC_ALARM,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device omap_rtc_device = {
+	.name           = "omap_rtc",
+	.id             = -1,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
+	.resource	= rtc_resources,
+};
+
+static void omap_init_rtc(void)
+{
+	(void) platform_device_register(&omap_rtc_device);
+}
+#else
+static inline void omap_init_rtc(void) {}
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+#if IS_ENABLED(CONFIG_MMC_OMAP)
+
+static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
+			int controller_nr)
+{
+	if (controller_nr == 0) {
+		omap_cfg_reg(MMC_CMD);
+		omap_cfg_reg(MMC_CLK);
+		omap_cfg_reg(MMC_DAT0);
+
+		if (cpu_is_omap1710()) {
+			omap_cfg_reg(M15_1710_MMC_CLKI);
+			omap_cfg_reg(P19_1710_MMC_CMDDIR);
+			omap_cfg_reg(P20_1710_MMC_DATDIR0);
+		}
+		if (mmc_controller->slots[0].wires == 4) {
+			omap_cfg_reg(MMC_DAT1);
+			/* NOTE: DAT2 can be on W10 (here) or M15 */
+			if (!mmc_controller->slots[0].nomux)
+				omap_cfg_reg(MMC_DAT2);
+			omap_cfg_reg(MMC_DAT3);
+		}
+	}
+
+	/* Block 2 is on newer chips, and has many pinout options */
+	if (cpu_is_omap16xx() && controller_nr == 1) {
+		if (!mmc_controller->slots[1].nomux) {
+			omap_cfg_reg(Y8_1610_MMC2_CMD);
+			omap_cfg_reg(Y10_1610_MMC2_CLK);
+			omap_cfg_reg(R18_1610_MMC2_CLKIN);
+			omap_cfg_reg(W8_1610_MMC2_DAT0);
+			if (mmc_controller->slots[1].wires == 4) {
+				omap_cfg_reg(V8_1610_MMC2_DAT1);
+				omap_cfg_reg(W15_1610_MMC2_DAT2);
+				omap_cfg_reg(R10_1610_MMC2_DAT3);
+			}
+
+			/* These are needed for the level shifter */
+			omap_cfg_reg(V9_1610_MMC2_CMDDIR);
+			omap_cfg_reg(V5_1610_MMC2_DATDIR0);
+			omap_cfg_reg(W19_1610_MMC2_DATDIR1);
+		}
+
+		/* Feedback clock must be set on OMAP-1710 MMC2 */
+		if (cpu_is_omap1710())
+			omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
+					MOD_CONF_CTRL_1);
+	}
+}
+
+#define OMAP_MMC_NR_RES		4
+
+/*
+ * Register MMC devices.
+ */
+static int __init omap_mmc_add(const char *name, int id, unsigned long base,
+				unsigned long size, unsigned int irq,
+				unsigned rx_req, unsigned tx_req,
+				struct omap_mmc_platform_data *data)
+{
+	struct platform_device *pdev;
+	struct resource res[OMAP_MMC_NR_RES];
+	int ret;
+
+	pdev = platform_device_alloc(name, id);
+	if (!pdev)
+		return -ENOMEM;
+
+	memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
+	res[0].start = base;
+	res[0].end = base + size - 1;
+	res[0].flags = IORESOURCE_MEM;
+	res[1].start = res[1].end = irq;
+	res[1].flags = IORESOURCE_IRQ;
+	res[2].start = rx_req;
+	res[2].name = "rx";
+	res[2].flags = IORESOURCE_DMA;
+	res[3].start = tx_req;
+	res[3].name = "tx";
+	res[3].flags = IORESOURCE_DMA;
+
+	if (cpu_is_omap15xx())
+		data->slots[0].features = MMC_OMAP15XX;
+	if (cpu_is_omap16xx())
+		data->slots[0].features = MMC_OMAP16XX;
+
+	ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
+	if (ret == 0)
+		ret = platform_device_add_data(pdev, data, sizeof(*data));
+	if (ret)
+		goto fail;
+
+	ret = platform_device_add(pdev);
+	if (ret)
+		goto fail;
+
+	/* return device handle to board setup code */
+	data->dev = &pdev->dev;
+	return 0;
+
+fail:
+	platform_device_put(pdev);
+	return ret;
+}
+
+void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
+			int nr_controllers)
+{
+	int i;
+
+	for (i = 0; i < nr_controllers; i++) {
+		unsigned long base, size;
+		unsigned rx_req, tx_req;
+		unsigned int irq = 0;
+
+		if (!mmc_data[i])
+			continue;
+
+		omap1_mmc_mux(mmc_data[i], i);
+
+		switch (i) {
+		case 0:
+			base = OMAP1_MMC1_BASE;
+			irq = INT_MMC;
+			rx_req = 22;
+			tx_req = 21;
+			break;
+		case 1:
+			if (!cpu_is_omap16xx())
+				return;
+			base = OMAP1_MMC2_BASE;
+			irq = INT_1610_MMC2;
+			rx_req = 55;
+			tx_req = 54;
+			break;
+		default:
+			continue;
+		}
+		size = OMAP1_MMC_SIZE;
+
+		omap_mmc_add("mmci-omap", i, base, size, irq,
+				rx_req, tx_req, mmc_data[i]);
+	}
+}
+
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+/* Numbering for the SPI-capable controllers when used for SPI:
+ * spi		= 1
+ * uwire	= 2
+ * mmc1..2	= 3..4
+ * mcbsp1..3	= 5..7
+ */
+
+#if IS_ENABLED(CONFIG_SPI_OMAP_UWIRE)
+
+#define	OMAP_UWIRE_BASE		0xfffb3000
+
+static struct resource uwire_resources[] = {
+	{
+		.start		= OMAP_UWIRE_BASE,
+		.end		= OMAP_UWIRE_BASE + 0x20,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device omap_uwire_device = {
+	.name	   = "omap_uwire",
+	.id	     = -1,
+	.num_resources	= ARRAY_SIZE(uwire_resources),
+	.resource	= uwire_resources,
+};
+
+static void omap_init_uwire(void)
+{
+	/* FIXME define and use a boot tag; not all boards will be hooking
+	 * up devices to the microwire controller, and multi-board configs
+	 * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
+	 */
+
+	/* board-specific code must configure chipselects (only a few
+	 * are normally used) and SCLK/SDI/SDO (each has two choices).
+	 */
+	(void) platform_device_register(&omap_uwire_device);
+}
+#else
+static inline void omap_init_uwire(void) {}
+#endif
+
+
+#define OMAP1_RNG_BASE		0xfffe5000
+
+static struct resource omap1_rng_resources[] = {
+	{
+		.start		= OMAP1_RNG_BASE,
+		.end		= OMAP1_RNG_BASE + 0x4f,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device omap1_rng_device = {
+	.name		= "omap_rng",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(omap1_rng_resources),
+	.resource	= omap1_rng_resources,
+};
+
+static void omap1_init_rng(void)
+{
+	if (!cpu_is_omap16xx())
+		return;
+
+	(void) platform_device_register(&omap1_rng_device);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * This gets called after board-specific INIT_MACHINE, and initializes most
+ * on-chip peripherals accessible on this board (except for few like USB):
+ *
+ *  (a) Does any "standard config" pin muxing needed.  Board-specific
+ *	code will have muxed GPIO pins and done "nonstandard" setup;
+ *	that code could live in the boot loader.
+ *  (b) Populating board-specific platform_data with the data drivers
+ *	rely on to handle wiring variations.
+ *  (c) Creating platform devices as meaningful on this board and
+ *	with this kernel configuration.
+ *
+ * Claiming GPIOs, and setting their direction and initial values, is the
+ * responsibility of the device drivers.  So is responding to probe().
+ *
+ * Board-specific knowledge like creating devices or pin setup is to be
+ * kept out of drivers as much as possible.  In particular, pin setup
+ * may be handled by the boot loader, and drivers should expect it will
+ * normally have been done by the time they're probed.
+ */
+static int __init omap1_init_devices(void)
+{
+	if (!cpu_class_is_omap1())
+		return -ENODEV;
+
+	omap1_sram_init();
+	omap1_clk_late_init();
+
+	/* please keep these calls, and their implementations above,
+	 * in alphabetical order so they're easier to sort through.
+	 */
+
+	omap_init_rtc();
+	omap_init_uwire();
+	omap1_init_rng();
+
+	return 0;
+}
+arch_initcall(omap1_init_devices);
+
+#if IS_ENABLED(CONFIG_OMAP_WATCHDOG)
+
+static struct resource wdt_resources[] = {
+	{
+		.start		= 0xfffeb000,
+		.end		= 0xfffeb07F,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device omap_wdt_device = {
+	.name		= "omap_wdt",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
+	.resource	= wdt_resources,
+};
+
+static int __init omap_init_wdt(void)
+{
+	struct omap_wd_timer_platform_data pdata;
+	int ret;
+
+	if (!cpu_is_omap16xx())
+		return -ENODEV;
+
+	pdata.read_reset_sources = omap1_get_reset_sources;
+
+	ret = platform_device_register(&omap_wdt_device);
+	if (!ret) {
+		ret = platform_device_add_data(&omap_wdt_device, &pdata,
+					       sizeof(pdata));
+		if (ret)
+			platform_device_del(&omap_wdt_device);
+	}
+
+	return ret;
+}
+subsys_initcall(omap_init_wdt);
+#endif
diff --git a/arch/arm/mach-omap1/dma.c b/arch/arm/mach-omap1/dma.c
new file mode 100644
index 000000000..e5d102887
--- /dev/null
+++ b/arch/arm/mach-omap1/dma.c
@@ -0,0 +1,394 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP1/OMAP7xx - specific 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) 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/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/omap-dma.h>
+#include "tc.h"
+
+#include "soc.h"
+
+#define OMAP1_DMA_BASE			(0xfffed800)
+
+static u32 enable_1510_mode;
+
+static const struct omap_dma_reg reg_map[] = {
+	[GCR]		= { 0x0400, 0x00, OMAP_DMA_REG_16BIT },
+	[GSCR]		= { 0x0404, 0x00, OMAP_DMA_REG_16BIT },
+	[GRST1]		= { 0x0408, 0x00, OMAP_DMA_REG_16BIT },
+	[HW_ID]		= { 0x0442, 0x00, OMAP_DMA_REG_16BIT },
+	[PCH2_ID]	= { 0x0444, 0x00, OMAP_DMA_REG_16BIT },
+	[PCH0_ID]	= { 0x0446, 0x00, OMAP_DMA_REG_16BIT },
+	[PCH1_ID]	= { 0x0448, 0x00, OMAP_DMA_REG_16BIT },
+	[PCHG_ID]	= { 0x044a, 0x00, OMAP_DMA_REG_16BIT },
+	[PCHD_ID]	= { 0x044c, 0x00, OMAP_DMA_REG_16BIT },
+	[CAPS_0]	= { 0x044e, 0x00, OMAP_DMA_REG_2X16BIT },
+	[CAPS_1]	= { 0x0452, 0x00, OMAP_DMA_REG_2X16BIT },
+	[CAPS_2]	= { 0x0456, 0x00, OMAP_DMA_REG_16BIT },
+	[CAPS_3]	= { 0x0458, 0x00, OMAP_DMA_REG_16BIT },
+	[CAPS_4]	= { 0x045a, 0x00, OMAP_DMA_REG_16BIT },
+	[PCH2_SR]	= { 0x0460, 0x00, OMAP_DMA_REG_16BIT },
+	[PCH0_SR]	= { 0x0480, 0x00, OMAP_DMA_REG_16BIT },
+	[PCH1_SR]	= { 0x0482, 0x00, OMAP_DMA_REG_16BIT },
+	[PCHD_SR]	= { 0x04c0, 0x00, OMAP_DMA_REG_16BIT },
+
+	/* Common Registers */
+	[CSDP]		= { 0x0000, 0x40, OMAP_DMA_REG_16BIT },
+	[CCR]		= { 0x0002, 0x40, OMAP_DMA_REG_16BIT },
+	[CICR]		= { 0x0004, 0x40, OMAP_DMA_REG_16BIT },
+	[CSR]		= { 0x0006, 0x40, OMAP_DMA_REG_16BIT },
+	[CEN]		= { 0x0010, 0x40, OMAP_DMA_REG_16BIT },
+	[CFN]		= { 0x0012, 0x40, OMAP_DMA_REG_16BIT },
+	[CSFI]		= { 0x0014, 0x40, OMAP_DMA_REG_16BIT },
+	[CSEI]		= { 0x0016, 0x40, OMAP_DMA_REG_16BIT },
+	[CPC]		= { 0x0018, 0x40, OMAP_DMA_REG_16BIT },	/* 15xx only */
+	[CSAC]		= { 0x0018, 0x40, OMAP_DMA_REG_16BIT },
+	[CDAC]		= { 0x001a, 0x40, OMAP_DMA_REG_16BIT },
+	[CDEI]		= { 0x001c, 0x40, OMAP_DMA_REG_16BIT },
+	[CDFI]		= { 0x001e, 0x40, OMAP_DMA_REG_16BIT },
+	[CLNK_CTRL]	= { 0x0028, 0x40, OMAP_DMA_REG_16BIT },
+
+	/* Channel specific register offsets */
+	[CSSA]		= { 0x0008, 0x40, OMAP_DMA_REG_2X16BIT },
+	[CDSA]		= { 0x000c, 0x40, OMAP_DMA_REG_2X16BIT },
+	[COLOR]		= { 0x0020, 0x40, OMAP_DMA_REG_2X16BIT },
+	[CCR2]		= { 0x0024, 0x40, OMAP_DMA_REG_16BIT },
+	[LCH_CTRL]	= { 0x002a, 0x40, OMAP_DMA_REG_16BIT },
+};
+
+static struct resource res[] __initdata = {
+	[0] = {
+		.start	= OMAP1_DMA_BASE,
+		.end	= OMAP1_DMA_BASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name   = "0",
+		.start  = INT_DMA_CH0_6,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[2] = {
+		.name   = "1",
+		.start  = INT_DMA_CH1_7,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[3] = {
+		.name   = "2",
+		.start  = INT_DMA_CH2_8,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[4] = {
+		.name   = "3",
+		.start  = INT_DMA_CH3,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[5] = {
+		.name   = "4",
+		.start  = INT_DMA_CH4,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[6] = {
+		.name   = "5",
+		.start  = INT_DMA_CH5,
+		.flags  = IORESOURCE_IRQ,
+	},
+	/* Handled in lcd_dma.c */
+	[7] = {
+		.name   = "6",
+		.start  = INT_1610_DMA_CH6,
+		.flags  = IORESOURCE_IRQ,
+	},
+	/* irq's for omap16xx and omap7xx */
+	[8] = {
+		.name   = "7",
+		.start  = INT_1610_DMA_CH7,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[9] = {
+		.name   = "8",
+		.start  = INT_1610_DMA_CH8,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[10] = {
+		.name  = "9",
+		.start = INT_1610_DMA_CH9,
+		.flags = IORESOURCE_IRQ,
+	},
+	[11] = {
+		.name  = "10",
+		.start = INT_1610_DMA_CH10,
+		.flags = IORESOURCE_IRQ,
+	},
+	[12] = {
+		.name  = "11",
+		.start = INT_1610_DMA_CH11,
+		.flags = IORESOURCE_IRQ,
+	},
+	[13] = {
+		.name  = "12",
+		.start = INT_1610_DMA_CH12,
+		.flags = IORESOURCE_IRQ,
+	},
+	[14] = {
+		.name  = "13",
+		.start = INT_1610_DMA_CH13,
+		.flags = IORESOURCE_IRQ,
+	},
+	[15] = {
+		.name  = "14",
+		.start = INT_1610_DMA_CH14,
+		.flags = IORESOURCE_IRQ,
+	},
+	[16] = {
+		.name  = "15",
+		.start = INT_1610_DMA_CH15,
+		.flags = IORESOURCE_IRQ,
+	},
+	[17] = {
+		.name  = "16",
+		.start = INT_DMA_LCD,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static void __iomem *dma_base;
+static inline void dma_write(u32 val, int reg, int lch)
+{
+	void __iomem *addr = dma_base;
+
+	addr += reg_map[reg].offset;
+	addr += reg_map[reg].stride * lch;
+
+	__raw_writew(val, addr);
+	if (reg_map[reg].type == OMAP_DMA_REG_2X16BIT)
+		__raw_writew(val >> 16, addr + 2);
+}
+
+static inline u32 dma_read(int reg, int lch)
+{
+	void __iomem *addr = dma_base;
+	uint32_t val;
+
+	addr += reg_map[reg].offset;
+	addr += reg_map[reg].stride * lch;
+
+	val = __raw_readw(addr);
+	if (reg_map[reg].type == OMAP_DMA_REG_2X16BIT)
+		val |= __raw_readw(addr + 2) << 16;
+
+	return val;
+}
+
+static void omap1_clear_lch_regs(int lch)
+{
+	int i;
+
+	for (i = CPC; i <= COLOR; i += 1)
+		dma_write(0, i, lch);
+}
+
+static void omap1_clear_dma(int lch)
+{
+	u32 l;
+
+	l = dma_read(CCR, lch);
+	l &= ~OMAP_DMA_CCR_EN;
+	dma_write(l, CCR, lch);
+
+	/* Clear pending interrupts */
+	l = dma_read(CSR, lch);
+}
+
+static void omap1_show_dma_caps(void)
+{
+	if (enable_1510_mode) {
+		printk(KERN_INFO "DMA support for OMAP15xx initialized\n");
+	} else {
+		u16 w;
+		printk(KERN_INFO "OMAP DMA hardware version %d\n",
+							dma_read(HW_ID, 0));
+		printk(KERN_INFO "DMA capabilities: %08x:%08x:%04x:%04x:%04x\n",
+			dma_read(CAPS_0, 0), dma_read(CAPS_1, 0),
+			dma_read(CAPS_2, 0), dma_read(CAPS_3, 0),
+			dma_read(CAPS_4, 0));
+
+		/* Disable OMAP 3.0/3.1 compatibility mode. */
+		w = dma_read(GSCR, 0);
+		w |= 1 << 3;
+		dma_write(w, GSCR, 0);
+	}
+}
+
+static unsigned configure_dma_errata(void)
+{
+	unsigned errata = 0;
+
+	/*
+	 * Erratum 3.2/3.3: sometimes 0 is returned if CSAC/CDAC is
+	 * read before the DMA controller finished disabling the channel.
+	 */
+	if (!cpu_is_omap15xx())
+		SET_DMA_ERRATA(DMA_ERRATA_3_3);
+
+	return errata;
+}
+
+static const struct platform_device_info omap_dma_dev_info = {
+	.name = "omap-dma-engine",
+	.id = -1,
+	.dma_mask = DMA_BIT_MASK(32),
+	.res = res,
+	.num_res = 1,
+};
+
+/* OMAP1510, OMAP1610*/
+static const struct dma_slave_map omap1xxx_sdma_map[] = {
+	{ "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(8) },
+	{ "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(9) },
+	{ "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(10) },
+	{ "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(11) },
+	{ "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(16) },
+	{ "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(17) },
+	{ "mmci-omap.0", "tx", SDMA_FILTER_PARAM(21) },
+	{ "mmci-omap.0", "rx", SDMA_FILTER_PARAM(22) },
+	{ "omap_udc", "rx0", SDMA_FILTER_PARAM(26) },
+	{ "omap_udc", "rx1", SDMA_FILTER_PARAM(27) },
+	{ "omap_udc", "rx2", SDMA_FILTER_PARAM(28) },
+	{ "omap_udc", "tx0", SDMA_FILTER_PARAM(29) },
+	{ "omap_udc", "tx1", SDMA_FILTER_PARAM(30) },
+	{ "omap_udc", "tx2", SDMA_FILTER_PARAM(31) },
+	{ "mmci-omap.1", "tx", SDMA_FILTER_PARAM(54) },
+	{ "mmci-omap.1", "rx", SDMA_FILTER_PARAM(55) },
+};
+
+static struct omap_system_dma_plat_info dma_plat_info __initdata = {
+	.reg_map	= reg_map,
+	.channel_stride	= 0x40,
+	.show_dma_caps	= omap1_show_dma_caps,
+	.clear_lch_regs	= omap1_clear_lch_regs,
+	.clear_dma	= omap1_clear_dma,
+	.dma_write	= dma_write,
+	.dma_read	= dma_read,
+};
+
+static int __init omap1_system_dma_init(void)
+{
+	struct omap_system_dma_plat_info	p;
+	struct omap_dma_dev_attr		*d;
+	struct platform_device			*pdev, *dma_pdev;
+	int ret;
+
+	pdev = platform_device_alloc("omap_dma_system", 0);
+	if (!pdev) {
+		pr_err("%s: Unable to device alloc for dma\n",
+			__func__);
+		return -ENOMEM;
+	}
+
+	dma_base = ioremap(res[0].start, resource_size(&res[0]));
+	if (!dma_base) {
+		pr_err("%s: Unable to ioremap\n", __func__);
+		ret = -ENODEV;
+		goto exit_device_put;
+	}
+
+	ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
+	if (ret) {
+		dev_err(&pdev->dev, "%s: Unable to add resources for %s%d\n",
+			__func__, pdev->name, pdev->id);
+		goto exit_iounmap;
+	}
+
+	d = kzalloc_obj(*d);
+	if (!d) {
+		ret = -ENOMEM;
+		goto exit_iounmap;
+	}
+
+	/* Valid attributes for omap1 plus processors */
+	if (cpu_is_omap15xx())
+		d->dev_caps = ENABLE_1510_MODE;
+	enable_1510_mode = d->dev_caps & ENABLE_1510_MODE;
+
+	if (cpu_is_omap16xx())
+		d->dev_caps = ENABLE_16XX_MODE;
+
+	d->dev_caps		|= SRC_PORT;
+	d->dev_caps		|= DST_PORT;
+	d->dev_caps		|= SRC_INDEX;
+	d->dev_caps		|= DST_INDEX;
+	d->dev_caps		|= IS_BURST_ONLY4;
+	d->dev_caps		|= CLEAR_CSR_ON_READ;
+	d->dev_caps		|= IS_WORD_16;
+
+	/* available logical channels */
+	if (cpu_is_omap15xx()) {
+		d->lch_count = 9;
+	} else {
+		if (d->dev_caps & ENABLE_1510_MODE)
+			d->lch_count = 9;
+		else
+			d->lch_count = 16;
+	}
+
+	p = dma_plat_info;
+	p.dma_attr = d;
+	p.errata = configure_dma_errata();
+
+	p.slave_map = omap1xxx_sdma_map;
+	p.slavecnt = ARRAY_SIZE(omap1xxx_sdma_map);
+
+	ret = platform_device_add_data(pdev, &p, sizeof(p));
+	if (ret) {
+		dev_err(&pdev->dev, "%s: Unable to add resources for %s%d\n",
+			__func__, pdev->name, pdev->id);
+		goto exit_release_d;
+	}
+
+	ret = platform_device_add(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "%s: Unable to add resources for %s%d\n",
+			__func__, pdev->name, pdev->id);
+		goto exit_release_d;
+	}
+
+	dma_pdev = platform_device_register_full(&omap_dma_dev_info);
+	if (IS_ERR(dma_pdev)) {
+		ret = PTR_ERR(dma_pdev);
+		goto exit_release_pdev;
+	}
+
+	return ret;
+
+exit_release_pdev:
+	platform_device_del(pdev);
+exit_release_d:
+	kfree(d);
+exit_iounmap:
+	iounmap(dma_base);
+exit_device_put:
+	platform_device_put(pdev);
+
+	return ret;
+}
+arch_initcall(omap1_system_dma_init);
diff --git a/arch/arm/mach-omap1/fb.c b/arch/arm/mach-omap1/fb.c
new file mode 100644
index 000000000..b6e952b03
--- /dev/null
+++ b/arch/arm/mach-omap1/fb.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * File: arch/arm/plat-omap/fb.c
+ *
+ * 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 <linux/irq.h>
+
+#include <asm/mach/map.h>
+
+#include "irqs.h"
+
+#if IS_ENABLED(CONFIG_FB_OMAP)
+
+static bool omapfb_lcd_configured;
+static struct omapfb_platform_data omapfb_config;
+
+static u64 omap_fb_dma_mask = ~(u32)0;
+
+static struct resource omap_fb_resources[] = {
+	{
+		.name  = "irq",
+		.start = INT_LCD_CTRL,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.name  = "irq",
+		.start = INT_SOSSI_MATCH,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+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 = ARRAY_SIZE(omap_fb_resources),
+	.resource = omap_fb_resources,
+};
+
+void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
+{
+	omapfb_config.lcd = *config;
+	omapfb_lcd_configured = true;
+}
+
+static int __init omap_init_fb(void)
+{
+	/*
+	 * If the board file has not set the lcd config with
+	 * omapfb_set_lcd_config(), don't bother registering the omapfb device
+	 */
+	if (!omapfb_lcd_configured)
+		return 0;
+
+	return platform_device_register(&omap_fb_device);
+}
+
+arch_initcall(omap_init_fb);
+
+#else
+
+void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
+{
+}
+
+#endif
diff --git a/arch/arm/mach-omap1/flash.c b/arch/arm/mach-omap1/flash.c
new file mode 100644
index 000000000..0a3ddb3b6
--- /dev/null
+++ b/arch/arm/mach-omap1/flash.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Flash support for OMAP1
+ */
+
+#include <linux/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include "tc.h"
+
+#include "flash.h"
+
+
+void omap1_set_vpp(struct platform_device *pdev, int enable)
+{
+	u32 l;
+
+	l = omap_readl(EMIFS_CONFIG);
+	if (enable)
+		l |= OMAP_EMIFS_CONFIG_WP;
+	else
+		l &= ~OMAP_EMIFS_CONFIG_WP;
+	omap_writel(l, EMIFS_CONFIG);
+}
diff --git a/arch/arm/mach-omap1/flash.h b/arch/arm/mach-omap1/flash.h
new file mode 100644
index 000000000..7077224f6
--- /dev/null
+++ b/arch/arm/mach-omap1/flash.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Flash support for OMAP1
+ */
+
+#ifndef __OMAP_FLASH_H
+#define __OMAP_FLASH_H
+
+#include <linux/mtd/map.h>
+
+struct platform_device;
+extern void omap1_set_vpp(struct platform_device *pdev, int enable);
+
+#endif
diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c
new file mode 100644
index 000000000..6724af492
--- /dev/null
+++ b/arch/arm/mach-omap1/gpio15xx.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP15xx specific gpio init
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ * Author:
+ *	Charulatha V <charu@ti.com>
+ */
+
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/soc/ti/omap1-soc.h>
+#include <asm/irq.h>
+
+#include "irqs.h"
+
+#define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
+#define OMAP1510_GPIO_BASE		0xFFFCE000
+
+/* gpio1 */
+static struct resource omap15xx_mpu_gpio_resources[] = {
+	{
+		.start	= OMAP1_MPUIO_VBASE,
+		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_MPUIO,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
+	.revision       = USHRT_MAX,
+	.direction	= OMAP_MPUIO_IO_CNTL,
+	.datain		= OMAP_MPUIO_INPUT_LATCH,
+	.dataout	= OMAP_MPUIO_OUTPUT,
+	.irqstatus	= OMAP_MPUIO_GPIO_INT,
+	.irqenable	= OMAP_MPUIO_GPIO_MASKIT,
+	.irqenable_inv	= true,
+	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
+};
+
+static struct omap_gpio_platform_data omap15xx_mpu_gpio_config = {
+	.is_mpuio		= true,
+	.bank_width		= 16,
+	.bank_stride		= 1,
+	.regs			= &omap15xx_mpuio_regs,
+};
+
+static struct platform_device omap15xx_mpu_gpio = {
+	.name           = "omap_gpio",
+	.id             = 0,
+	.dev            = {
+		.platform_data = &omap15xx_mpu_gpio_config,
+	},
+	.num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources),
+	.resource = omap15xx_mpu_gpio_resources,
+};
+
+/* gpio2 */
+static struct resource omap15xx_gpio_resources[] = {
+	{
+		.start	= OMAP1510_GPIO_BASE,
+		.end	= OMAP1510_GPIO_BASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_GPIO_BANK1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
+	.revision	= USHRT_MAX,
+	.direction	= OMAP1510_GPIO_DIR_CONTROL,
+	.datain		= OMAP1510_GPIO_DATA_INPUT,
+	.dataout	= OMAP1510_GPIO_DATA_OUTPUT,
+	.irqstatus	= OMAP1510_GPIO_INT_STATUS,
+	.irqenable	= OMAP1510_GPIO_INT_MASK,
+	.irqenable_inv	= true,
+	.irqctrl	= OMAP1510_GPIO_INT_CONTROL,
+	.pinctrl	= OMAP1510_GPIO_PIN_CONTROL,
+};
+
+static struct omap_gpio_platform_data omap15xx_gpio_config = {
+	.bank_width		= 16,
+	.regs                   = &omap15xx_gpio_regs,
+};
+
+static struct platform_device omap15xx_gpio = {
+	.name           = "omap_gpio",
+	.id             = 1,
+	.dev            = {
+		.platform_data = &omap15xx_gpio_config,
+	},
+	.num_resources = ARRAY_SIZE(omap15xx_gpio_resources),
+	.resource = omap15xx_gpio_resources,
+};
+
+/*
+ * omap15xx_gpio_init needs to be done before
+ * machine_init functions access gpio APIs.
+ * Hence omap15xx_gpio_init is a postcore_initcall.
+ */
+static int __init omap15xx_gpio_init(void)
+{
+	if (!cpu_is_omap15xx())
+		return -EINVAL;
+
+	platform_device_register(&omap15xx_mpu_gpio);
+	platform_device_register(&omap15xx_gpio);
+
+	return 0;
+}
+postcore_initcall(omap15xx_gpio_init);
diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c
new file mode 100644
index 000000000..0f97972fd
--- /dev/null
+++ b/arch/arm/mach-omap1/gpio16xx.c
@@ -0,0 +1,251 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP16xx specific gpio init
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ * Author:
+ *	Charulatha V <charu@ti.com>
+ */
+
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/property.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include "hardware.h"
+#include "irqs.h"
+#include "soc.h"
+
+#define OMAP1610_GPIO1_BASE		0xfffbe400
+#define OMAP1610_GPIO2_BASE		0xfffbec00
+#define OMAP1610_GPIO3_BASE		0xfffbb400
+#define OMAP1610_GPIO4_BASE		0xfffbbc00
+#define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
+
+/* smart idle, enable wakeup */
+#define SYSCONFIG_WORD			0x14
+
+/* mpu gpio */
+static struct resource omap16xx_mpu_gpio_resources[] = {
+	{
+		.start	= OMAP1_MPUIO_VBASE,
+		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_MPUIO,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
+	.revision       = USHRT_MAX,
+	.direction	= OMAP_MPUIO_IO_CNTL,
+	.datain		= OMAP_MPUIO_INPUT_LATCH,
+	.dataout	= OMAP_MPUIO_OUTPUT,
+	.irqstatus	= OMAP_MPUIO_GPIO_INT,
+	.irqenable	= OMAP_MPUIO_GPIO_MASKIT,
+	.irqenable_inv	= true,
+	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
+};
+
+static struct omap_gpio_platform_data omap16xx_mpu_gpio_config = {
+	.is_mpuio		= true,
+	.bank_width		= 16,
+	.bank_stride		= 1,
+	.regs                   = &omap16xx_mpuio_regs,
+};
+
+const struct software_node omap16xx_mpu_gpio_swnode = { };
+
+static const struct platform_device_info omap16xx_mpu_gpio = {
+	.name           = "omap_gpio",
+	.id             = 0,
+	.data           = &omap16xx_mpu_gpio_config,
+	.size_data      = sizeof(omap16xx_mpu_gpio_config),
+	.num_res        = ARRAY_SIZE(omap16xx_mpu_gpio_resources),
+	.res            = omap16xx_mpu_gpio_resources,
+	.swnode         = &omap16xx_mpu_gpio_swnode,
+};
+
+/* gpio1 */
+static struct resource omap16xx_gpio1_resources[] = {
+	{
+		.start	= OMAP1610_GPIO1_BASE,
+		.end	= OMAP1610_GPIO1_BASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_GPIO_BANK1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
+	.revision       = OMAP1610_GPIO_REVISION,
+	.direction	= OMAP1610_GPIO_DIRECTION,
+	.set_dataout	= OMAP1610_GPIO_SET_DATAOUT,
+	.clr_dataout	= OMAP1610_GPIO_CLEAR_DATAOUT,
+	.datain		= OMAP1610_GPIO_DATAIN,
+	.dataout	= OMAP1610_GPIO_DATAOUT,
+	.irqstatus	= OMAP1610_GPIO_IRQSTATUS1,
+	.irqenable	= OMAP1610_GPIO_IRQENABLE1,
+	.set_irqenable	= OMAP1610_GPIO_SET_IRQENABLE1,
+	.clr_irqenable	= OMAP1610_GPIO_CLEAR_IRQENABLE1,
+	.wkup_en	= OMAP1610_GPIO_WAKEUPENABLE,
+	.edgectrl1	= OMAP1610_GPIO_EDGE_CTRL1,
+	.edgectrl2	= OMAP1610_GPIO_EDGE_CTRL2,
+};
+
+static struct omap_gpio_platform_data omap16xx_gpio1_config = {
+	.bank_width		= 16,
+	.regs                   = &omap16xx_gpio_regs,
+};
+
+const struct software_node omap16xx_gpio1_swnode = { };
+
+static const struct platform_device_info omap16xx_gpio1 = {
+	.name           = "omap_gpio",
+	.id             = 1,
+	.data           = &omap16xx_gpio1_config,
+	.size_data      = sizeof(omap16xx_gpio1_config),
+	.num_res        = ARRAY_SIZE(omap16xx_gpio1_resources),
+	.res            = omap16xx_gpio1_resources,
+	.swnode         = &omap16xx_gpio1_swnode,
+};
+
+/* gpio2 */
+static struct resource omap16xx_gpio2_resources[] = {
+	{
+		.start	= OMAP1610_GPIO2_BASE,
+		.end	= OMAP1610_GPIO2_BASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_1610_GPIO_BANK2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_platform_data omap16xx_gpio2_config = {
+	.bank_width		= 16,
+	.regs                   = &omap16xx_gpio_regs,
+};
+
+static const struct platform_device_info omap16xx_gpio2 = {
+	.name           = "omap_gpio",
+	.id             = 2,
+	.data           = &omap16xx_gpio2_config,
+	.size_data      = sizeof(omap16xx_gpio2_config),
+	.num_res        = ARRAY_SIZE(omap16xx_gpio2_resources),
+	.res            = omap16xx_gpio2_resources,
+};
+
+/* gpio3 */
+static struct resource omap16xx_gpio3_resources[] = {
+	{
+		.start	= OMAP1610_GPIO3_BASE,
+		.end	= OMAP1610_GPIO3_BASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_1610_GPIO_BANK3,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_platform_data omap16xx_gpio3_config = {
+	.bank_width		= 16,
+	.regs                   = &omap16xx_gpio_regs,
+};
+
+static const struct platform_device_info omap16xx_gpio3 = {
+	.name           = "omap_gpio",
+	.id             = 3,
+	.data           = &omap16xx_gpio3_config,
+	.size_data      = sizeof(omap16xx_gpio3_config),
+	.num_res        = ARRAY_SIZE(omap16xx_gpio3_resources),
+	.res            = omap16xx_gpio3_resources,
+};
+
+/* gpio4 */
+static struct resource omap16xx_gpio4_resources[] = {
+	{
+		.start	= OMAP1610_GPIO4_BASE,
+		.end	= OMAP1610_GPIO4_BASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_1610_GPIO_BANK4,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_platform_data omap16xx_gpio4_config = {
+	.bank_width		= 16,
+	.regs                   = &omap16xx_gpio_regs,
+};
+
+static const struct platform_device_info omap16xx_gpio4 = {
+	.name           = "omap_gpio",
+	.id             = 4,
+	.data           = &omap16xx_gpio4_config,
+	.size_data      = sizeof(omap16xx_gpio4_config),
+	.num_res        = ARRAY_SIZE(omap16xx_gpio4_resources),
+	.res            = omap16xx_gpio4_resources,
+};
+
+static const struct platform_device_info *omap16xx_gpio_dev[] __initconst = {
+	&omap16xx_mpu_gpio,
+	&omap16xx_gpio1,
+	&omap16xx_gpio2,
+	&omap16xx_gpio3,
+	&omap16xx_gpio4,
+};
+
+/*
+ * omap16xx_gpio_init needs to be done before
+ * machine_init functions access gpio APIs.
+ * Hence omap16xx_gpio_init is a postcore_initcall.
+ */
+static int __init omap16xx_gpio_init(void)
+{
+	int i;
+	void __iomem *base;
+	const struct resource *res;
+	const struct platform_device_info *pdevinfo;
+
+	if (!cpu_is_omap16xx())
+		return -EINVAL;
+
+	/*
+	 * Enable system clock for GPIO module.
+	 * The CAM_CLK_CTRL *is* really the right place.
+	 */
+	omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
+					ULPD_CAM_CLK_CTRL);
+
+	for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++) {
+		pdevinfo = omap16xx_gpio_dev[i];
+
+		res = &pdevinfo->res[0];
+		if (unlikely(!res)) {
+			pr_err("%s.%d: Invalid mem resource.\n", pdevinfo->name, pdevinfo->id);
+			return -ENODEV;
+		}
+
+		base = ioremap(res->start, resource_size(res));
+		if (unlikely(!base)) {
+			pr_err("%s.%d: ioremap failed.\n", pdevinfo->name, pdevinfo->id);
+			return -ENOMEM;
+		}
+
+		__raw_writel(SYSCONFIG_WORD, base + OMAP1610_GPIO_SYSCONFIG);
+		iounmap(base);
+
+		platform_device_register_full(omap16xx_gpio_dev[i]);
+	}
+
+	return 0;
+}
+postcore_initcall(omap16xx_gpio_init);
diff --git a/arch/arm/mach-omap1/hardware.h b/arch/arm/mach-omap1/hardware.h
new file mode 100644
index 000000000..0aa571c9e
--- /dev/null
+++ b/arch/arm/mach-omap1/hardware.h
@@ -0,0 +1,235 @@
+/*
+ * Hardware definitions for TI OMAP processors and boards
+ *
+ * NOTE: Please put device driver specific defines into a separate header
+ *	 file for each driver.
+ *
+ * Copyright (C) 2001 RidgeRun, Inc.
+ * Author: RidgeRun, Inc. Greg Lonnon <glonnon@ridgerun.com>
+ *
+ * Reorganized for Linux-2.6 by Tony Lindgren <tony@atomide.com>
+ *                          and Dirk Behme <dirk.behme@de.bosch.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.
+ */
+
+#ifndef __ASM_ARCH_OMAP_HARDWARE_H
+#define __ASM_ARCH_OMAP_HARDWARE_H
+
+#include <linux/sizes.h>
+#include <linux/soc/ti/omap1-io.h>
+#ifndef __ASSEMBLER__
+#include <asm/types.h>
+#include <linux/soc/ti/omap1-soc.h>
+
+#include "tc.h"
+
+/* Almost all documentation for chip and board memory maps assumes
+ * BM is clear.  Most devel boards have a switch to control booting
+ * from NOR flash (using external chipselect 3) rather than mask ROM,
+ * which uses BM to interchange the physical CS0 and CS3 addresses.
+ */
+static inline u32 omap_cs0m_phys(void)
+{
+	return (omap_readl(EMIFS_CONFIG) & OMAP_EMIFS_CONFIG_BM)
+			?  OMAP_CS3_PHYS : 0;
+}
+
+static inline u32 omap_cs3_phys(void)
+{
+	return (omap_readl(EMIFS_CONFIG) & OMAP_EMIFS_CONFIG_BM)
+			? 0 : OMAP_CS3_PHYS;
+}
+
+#endif	/* ifndef __ASSEMBLER__ */
+
+#define OMAP1_IO_OFFSET		0x00f00000	/* Virtual IO = 0xff0b0000 */
+#define OMAP1_IO_ADDRESS(pa)	IOMEM((pa) - OMAP1_IO_OFFSET)
+
+#include "serial.h"
+
+/*
+ * ---------------------------------------------------------------------------
+ * Common definitions for all OMAP processors
+ * NOTE: Put all processor or board specific parts to the special header
+ *	 files.
+ * ---------------------------------------------------------------------------
+ */
+
+/*
+ * ----------------------------------------------------------------------------
+ * Timers
+ * ----------------------------------------------------------------------------
+ */
+#define OMAP_MPU_TIMER1_BASE	(0xfffec500)
+#define OMAP_MPU_TIMER2_BASE	(0xfffec600)
+#define OMAP_MPU_TIMER3_BASE	(0xfffec700)
+#define MPU_TIMER_FREE		(1 << 6)
+#define MPU_TIMER_CLOCK_ENABLE	(1 << 5)
+#define MPU_TIMER_AR		(1 << 1)
+#define MPU_TIMER_ST		(1 << 0)
+
+/*
+ * ---------------------------------------------------------------------------
+ * Watchdog timer
+ * ---------------------------------------------------------------------------
+ */
+
+/* Watchdog timer within the OMAP3.2 gigacell */
+#define OMAP_MPU_WATCHDOG_BASE	(0xfffec800)
+#define OMAP_WDT_TIMER		(OMAP_MPU_WATCHDOG_BASE + 0x0)
+#define OMAP_WDT_LOAD_TIM	(OMAP_MPU_WATCHDOG_BASE + 0x4)
+#define OMAP_WDT_READ_TIM	(OMAP_MPU_WATCHDOG_BASE + 0x4)
+#define OMAP_WDT_TIMER_MODE	(OMAP_MPU_WATCHDOG_BASE + 0x8)
+
+/*
+ * ---------------------------------------------------------------------------
+ * Interrupts
+ * ---------------------------------------------------------------------------
+ */
+#ifdef CONFIG_ARCH_OMAP1
+
+/*
+ * XXX: These probably want to be moved to arch/arm/mach-omap/omap1/irq.c
+ * or something similar.. -- PFM.
+ */
+
+#define OMAP_IH1_BASE		0xfffecb00
+#define OMAP_IH2_BASE		0xfffe0000
+#define OMAP_IH2_0_BASE		(0xfffe0000)
+#define OMAP_IH2_1_BASE		(0xfffe0100)
+#define OMAP_IH2_2_BASE		(0xfffe0200)
+#define OMAP_IH2_3_BASE		(0xfffe0300)
+
+#define OMAP_IH1_ITR		(OMAP_IH1_BASE + 0x00)
+#define OMAP_IH1_MIR		(OMAP_IH1_BASE + 0x04)
+#define OMAP_IH1_SIR_IRQ	(OMAP_IH1_BASE + 0x10)
+#define OMAP_IH1_SIR_FIQ	(OMAP_IH1_BASE + 0x14)
+#define OMAP_IH1_CONTROL	(OMAP_IH1_BASE + 0x18)
+#define OMAP_IH1_ILR0		(OMAP_IH1_BASE + 0x1c)
+#define OMAP_IH1_ISR		(OMAP_IH1_BASE + 0x9c)
+
+#define OMAP_IH2_ITR		(OMAP_IH2_BASE + 0x00)
+#define OMAP_IH2_MIR		(OMAP_IH2_BASE + 0x04)
+#define OMAP_IH2_SIR_IRQ	(OMAP_IH2_BASE + 0x10)
+#define OMAP_IH2_SIR_FIQ	(OMAP_IH2_BASE + 0x14)
+#define OMAP_IH2_CONTROL	(OMAP_IH2_BASE + 0x18)
+#define OMAP_IH2_ILR0		(OMAP_IH2_BASE + 0x1c)
+#define OMAP_IH2_ISR		(OMAP_IH2_BASE + 0x9c)
+
+#define OMAP_IH2_0_ITR		(OMAP_IH2_0_BASE + 0x00)
+#define OMAP_IH2_0_MIR		(OMAP_IH2_0_BASE + 0x04)
+#define OMAP_IH2_0_SIR_IRQ	(OMAP_IH2_0_BASE + 0x10)
+#define OMAP_IH2_0_SIR_FIQ	(OMAP_IH2_0_BASE + 0x14)
+#define OMAP_IH2_0_CONTROL	(OMAP_IH2_0_BASE + 0x18)
+#define OMAP_IH2_0_ILR0		(OMAP_IH2_0_BASE + 0x1c)
+#define OMAP_IH2_0_ISR		(OMAP_IH2_0_BASE + 0x9c)
+
+#define OMAP_IH2_1_ITR		(OMAP_IH2_1_BASE + 0x00)
+#define OMAP_IH2_1_MIR		(OMAP_IH2_1_BASE + 0x04)
+#define OMAP_IH2_1_SIR_IRQ	(OMAP_IH2_1_BASE + 0x10)
+#define OMAP_IH2_1_SIR_FIQ	(OMAP_IH2_1_BASE + 0x14)
+#define OMAP_IH2_1_CONTROL	(OMAP_IH2_1_BASE + 0x18)
+#define OMAP_IH2_1_ILR1		(OMAP_IH2_1_BASE + 0x1c)
+#define OMAP_IH2_1_ISR		(OMAP_IH2_1_BASE + 0x9c)
+
+#define OMAP_IH2_2_ITR		(OMAP_IH2_2_BASE + 0x00)
+#define OMAP_IH2_2_MIR		(OMAP_IH2_2_BASE + 0x04)
+#define OMAP_IH2_2_SIR_IRQ	(OMAP_IH2_2_BASE + 0x10)
+#define OMAP_IH2_2_SIR_FIQ	(OMAP_IH2_2_BASE + 0x14)
+#define OMAP_IH2_2_CONTROL	(OMAP_IH2_2_BASE + 0x18)
+#define OMAP_IH2_2_ILR2		(OMAP_IH2_2_BASE + 0x1c)
+#define OMAP_IH2_2_ISR		(OMAP_IH2_2_BASE + 0x9c)
+
+#define OMAP_IH2_3_ITR		(OMAP_IH2_3_BASE + 0x00)
+#define OMAP_IH2_3_MIR		(OMAP_IH2_3_BASE + 0x04)
+#define OMAP_IH2_3_SIR_IRQ	(OMAP_IH2_3_BASE + 0x10)
+#define OMAP_IH2_3_SIR_FIQ	(OMAP_IH2_3_BASE + 0x14)
+#define OMAP_IH2_3_CONTROL	(OMAP_IH2_3_BASE + 0x18)
+#define OMAP_IH2_3_ILR3		(OMAP_IH2_3_BASE + 0x1c)
+#define OMAP_IH2_3_ISR		(OMAP_IH2_3_BASE + 0x9c)
+
+#define IRQ_ITR_REG_OFFSET	0x00
+#define IRQ_MIR_REG_OFFSET	0x04
+#define IRQ_SIR_IRQ_REG_OFFSET	0x10
+#define IRQ_SIR_FIQ_REG_OFFSET	0x14
+#define IRQ_CONTROL_REG_OFFSET	0x18
+#define IRQ_ISR_REG_OFFSET	0x9c
+#define IRQ_ILR0_REG_OFFSET	0x1c
+#define IRQ_GMR_REG_OFFSET	0xa0
+
+#endif
+
+/* Timer32K for 1610 and 1710*/
+#define OMAP_TIMER32K_BASE	0xFFFBC400
+
+/*
+ * ---------------------------------------------------------------------------
+ * TIPB bus interface
+ * ---------------------------------------------------------------------------
+ */
+#define TIPB_PUBLIC_CNTL_BASE		0xfffed300
+#define MPU_PUBLIC_TIPB_CNTL		(TIPB_PUBLIC_CNTL_BASE + 0x8)
+#define TIPB_PRIVATE_CNTL_BASE		0xfffeca00
+#define MPU_PRIVATE_TIPB_CNTL		(TIPB_PRIVATE_CNTL_BASE + 0x8)
+
+/*
+ * ----------------------------------------------------------------------------
+ * MPUI interface
+ * ----------------------------------------------------------------------------
+ */
+#define MPUI_BASE			(0xfffec900)
+#define MPUI_CTRL			(MPUI_BASE + 0x0)
+#define MPUI_DEBUG_ADDR			(MPUI_BASE + 0x4)
+#define MPUI_DEBUG_DATA			(MPUI_BASE + 0x8)
+#define MPUI_DEBUG_FLAG			(MPUI_BASE + 0xc)
+#define MPUI_STATUS_REG			(MPUI_BASE + 0x10)
+#define MPUI_DSP_STATUS			(MPUI_BASE + 0x14)
+#define MPUI_DSP_BOOT_CONFIG		(MPUI_BASE + 0x18)
+#define MPUI_DSP_API_CONFIG		(MPUI_BASE + 0x1c)
+
+/*
+ * ----------------------------------------------------------------------------
+ * LED Pulse Generator
+ * ----------------------------------------------------------------------------
+ */
+#define OMAP_LPG1_BASE			0xfffbd000
+#define OMAP_LPG2_BASE			0xfffbd800
+#define OMAP_LPG1_LCR			(OMAP_LPG1_BASE + 0x00)
+#define OMAP_LPG1_PMR			(OMAP_LPG1_BASE + 0x04)
+#define OMAP_LPG2_LCR			(OMAP_LPG2_BASE + 0x00)
+#define OMAP_LPG2_PMR			(OMAP_LPG2_BASE + 0x04)
+
+/*
+ * ---------------------------------------------------------------------------
+ * DSP
+ * ---------------------------------------------------------------------------
+ */
+
+#define OMAP1_DSP_BASE		0xE0000000
+#define OMAP1_DSP_SIZE		0x28000
+#define OMAP1_DSP_START		0xE0000000
+
+#define OMAP1_DSPREG_BASE	0xE1000000
+#define OMAP1_DSPREG_SIZE	SZ_128K
+#define OMAP1_DSPREG_START	0xE1000000
+
+#endif	/* __ASM_ARCH_OMAP_HARDWARE_H */
diff --git a/arch/arm/mach-omap1/i2c.c b/arch/arm/mach-omap1/i2c.c
new file mode 100644
index 000000000..94d3e7883
--- /dev/null
+++ b/arch/arm/mach-omap1/i2c.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Helper module for board specific I2C bus registration
+ *
+ * Copyright (C) 2009 Nokia Corporation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/platform_data/i2c-omap.h>
+
+#include "mux.h"
+#include "soc.h"
+#include "i2c.h"
+
+#define OMAP_I2C_SIZE		0x3f
+#define OMAP1_I2C_BASE		0xfffb3800
+
+static const char name[] = "omap_i2c";
+
+static struct resource i2c_resources[2] = {
+};
+
+static struct platform_device omap_i2c_devices[1] = {
+};
+
+static void __init omap1_i2c_mux_pins(int bus_id)
+{
+	omap_cfg_reg(I2C_SDA);
+	omap_cfg_reg(I2C_SCL);
+}
+
+int __init omap_i2c_add_bus(struct omap_i2c_bus_platform_data *pdata,
+				int bus_id)
+{
+	struct platform_device *pdev;
+	struct resource *res;
+
+	if (bus_id > 1)
+		return -EINVAL;
+
+	omap1_i2c_mux_pins(bus_id);
+
+	pdev = &omap_i2c_devices[bus_id - 1];
+	pdev->id = bus_id;
+	pdev->name = name;
+	pdev->num_resources = ARRAY_SIZE(i2c_resources);
+	res = i2c_resources;
+	res[0].start = OMAP1_I2C_BASE;
+	res[0].end = res[0].start + OMAP_I2C_SIZE;
+	res[0].flags = IORESOURCE_MEM;
+	res[1].start = INT_I2C;
+	res[1].flags = IORESOURCE_IRQ;
+	pdev->resource = res;
+
+	/* all OMAP1 have IP version 1 register set */
+	pdata->rev = OMAP_I2C_IP_VERSION_1;
+
+	/* all OMAP1 I2C are implemented like this */
+	pdata->flags = OMAP_I2C_FLAG_NO_FIFO |
+		       OMAP_I2C_FLAG_SIMPLE_CLOCK |
+		       OMAP_I2C_FLAG_16BIT_DATA_REG |
+		       OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK;
+
+	/* how the cpu bus is wired up differs for 7xx only */
+
+	pdata->flags |= OMAP_I2C_FLAG_BUS_SHIFT_2;
+
+	pdev->dev.platform_data = pdata;
+
+	return platform_device_register(pdev);
+}
+
+#define OMAP_I2C_MAX_CONTROLLERS 4
+static struct omap_i2c_bus_platform_data i2c_pdata[OMAP_I2C_MAX_CONTROLLERS];
+
+#define OMAP_I2C_CMDLINE_SETUP	(BIT(31))
+
+/**
+ * omap_i2c_bus_setup - Process command line options for the I2C bus speed
+ * @str: String of options
+ *
+ * This function allow to override the default I2C bus speed for given I2C
+ * bus with a command line option.
+ *
+ * Format: i2c_bus=bus_id,clkrate (in kHz)
+ *
+ * Returns 1 on success, 0 otherwise.
+ */
+static int __init omap_i2c_bus_setup(char *str)
+{
+	int ints[3];
+
+	get_options(str, 3, ints);
+	if (ints[0] < 2 || ints[1] < 1 ||
+			ints[1] > OMAP_I2C_MAX_CONTROLLERS)
+		return 0;
+	i2c_pdata[ints[1] - 1].clkrate = ints[2];
+	i2c_pdata[ints[1] - 1].clkrate |= OMAP_I2C_CMDLINE_SETUP;
+
+	return 1;
+}
+__setup("i2c_bus=", omap_i2c_bus_setup);
+
+/*
+ * Register busses defined in command line but that are not registered with
+ * omap_register_i2c_bus from board initialization code.
+ */
+int __init omap_register_i2c_bus_cmdline(void)
+{
+	int i, err = 0;
+
+	for (i = 0; i < ARRAY_SIZE(i2c_pdata); i++)
+		if (i2c_pdata[i].clkrate & OMAP_I2C_CMDLINE_SETUP) {
+			i2c_pdata[i].clkrate &= ~OMAP_I2C_CMDLINE_SETUP;
+			err = omap_i2c_add_bus(&i2c_pdata[i], i + 1);
+			if (err)
+				goto out;
+		}
+
+out:
+	return err;
+}
+
+/**
+ * omap_register_i2c_bus - register I2C bus with device descriptors
+ * @bus_id: bus id counting from number 1
+ * @clkrate: clock rate of the bus in kHz
+ * @info: pointer into I2C device descriptor table or NULL
+ * @len: number of descriptors in the table
+ *
+ * Returns 0 on success or an error code.
+ */
+int __init omap_register_i2c_bus(int bus_id, u32 clkrate,
+			  struct i2c_board_info const *info,
+			  unsigned len)
+{
+	int err;
+
+	BUG_ON(bus_id < 1 || bus_id > OMAP_I2C_MAX_CONTROLLERS);
+
+	if (info) {
+		err = i2c_register_board_info(bus_id, info, len);
+		if (err)
+			return err;
+	}
+
+	if (!i2c_pdata[bus_id - 1].clkrate)
+		i2c_pdata[bus_id - 1].clkrate = clkrate;
+
+	i2c_pdata[bus_id - 1].clkrate &= ~OMAP_I2C_CMDLINE_SETUP;
+
+	return omap_i2c_add_bus(&i2c_pdata[bus_id - 1], bus_id);
+}
+
+static  int __init omap_i2c_cmdline(void)
+{
+	return omap_register_i2c_bus_cmdline();
+}
+subsys_initcall(omap_i2c_cmdline);
diff --git a/arch/arm/mach-omap1/i2c.h b/arch/arm/mach-omap1/i2c.h
new file mode 100644
index 000000000..03e2ac2ef
--- /dev/null
+++ b/arch/arm/mach-omap1/i2c.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Helper module for board specific I2C bus registration
+ *
+ * Copyright (C) 2009 Nokia Corporation.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP1_I2C_H
+#define __ARCH_ARM_MACH_OMAP1_I2C_H
+
+struct i2c_board_info;
+struct omap_i2c_bus_platform_data;
+
+int omap_i2c_add_bus(struct omap_i2c_bus_platform_data *i2c_pdata,
+			int bus_id);
+
+#if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
+extern int omap_register_i2c_bus(int bus_id, u32 clkrate,
+				 struct i2c_board_info const *info,
+				 unsigned len);
+extern int omap_register_i2c_bus_cmdline(void);
+#else
+static inline int omap_register_i2c_bus(int bus_id, u32 clkrate,
+				 struct i2c_board_info const *info,
+				 unsigned len)
+{
+	return 0;
+}
+
+static inline int omap_register_i2c_bus_cmdline(void)
+{
+	return 0;
+}
+#endif
+
+#endif /* __ARCH_ARM_MACH_OMAP1_I2C_H */
diff --git a/arch/arm/mach-omap1/id.c b/arch/arm/mach-omap1/id.c
new file mode 100644
index 000000000..c3bb1b71f
--- /dev/null
+++ b/arch/arm/mach-omap1/id.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/id.c
+ *
+ * OMAP1 CPU identification code
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Written by Tony Lindgren <tony@atomide.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/soc/ti/omap1-io.h>
+#include <asm/system_info.h>
+
+#include "soc.h"
+#include "hardware.h"
+#include "common.h"
+
+#define OMAP_DIE_ID_0		0xfffe1800
+#define OMAP_DIE_ID_1		0xfffe1804
+#define OMAP_PRODUCTION_ID_0	0xfffe2000
+#define OMAP_PRODUCTION_ID_1	0xfffe2004
+#define OMAP32_ID_0		0xfffed400
+#define OMAP32_ID_1		0xfffed404
+
+struct omap_id {
+	u16	jtag_id;	/* Used to determine OMAP type */
+	u8	die_rev;	/* Processor revision */
+	u32	omap_id;	/* OMAP revision */
+	u32	type;		/* Cpu id bits [31:08], cpu class bits [07:00] */
+};
+
+static unsigned int omap_revision;
+
+/* Register values to detect the OMAP version */
+static struct omap_id omap_ids[] __initdata = {
+	{ .jtag_id = 0xb574, .die_rev = 0x2, .omap_id = 0x03310315, .type = 0x03100000},
+	{ .jtag_id = 0x355f, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x07300100},
+	{ .jtag_id = 0xb55f, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x07300300},
+	{ .jtag_id = 0xb62c, .die_rev = 0x1, .omap_id = 0x03320500, .type = 0x08500000},
+	{ .jtag_id = 0xb470, .die_rev = 0x0, .omap_id = 0x03310100, .type = 0x15100000},
+	{ .jtag_id = 0xb576, .die_rev = 0x0, .omap_id = 0x03320000, .type = 0x16100000},
+	{ .jtag_id = 0xb576, .die_rev = 0x2, .omap_id = 0x03320100, .type = 0x16110000},
+	{ .jtag_id = 0xb576, .die_rev = 0x3, .omap_id = 0x03320100, .type = 0x16100c00},
+	{ .jtag_id = 0xb576, .die_rev = 0x0, .omap_id = 0x03320200, .type = 0x16100d00},
+	{ .jtag_id = 0xb613, .die_rev = 0x0, .omap_id = 0x03320300, .type = 0x1610ef00},
+	{ .jtag_id = 0xb613, .die_rev = 0x0, .omap_id = 0x03320300, .type = 0x1610ef00},
+	{ .jtag_id = 0xb576, .die_rev = 0x1, .omap_id = 0x03320100, .type = 0x16110000},
+	{ .jtag_id = 0xb58c, .die_rev = 0x2, .omap_id = 0x03320200, .type = 0x16110b00},
+	{ .jtag_id = 0xb58c, .die_rev = 0x3, .omap_id = 0x03320200, .type = 0x16110c00},
+	{ .jtag_id = 0xb65f, .die_rev = 0x0, .omap_id = 0x03320400, .type = 0x16212300},
+	{ .jtag_id = 0xb65f, .die_rev = 0x1, .omap_id = 0x03320400, .type = 0x16212300},
+	{ .jtag_id = 0xb65f, .die_rev = 0x1, .omap_id = 0x03320500, .type = 0x16212300},
+	{ .jtag_id = 0xb5f7, .die_rev = 0x0, .omap_id = 0x03330000, .type = 0x17100000},
+	{ .jtag_id = 0xb5f7, .die_rev = 0x1, .omap_id = 0x03330100, .type = 0x17100000},
+	{ .jtag_id = 0xb5f7, .die_rev = 0x2, .omap_id = 0x03330100, .type = 0x17100000},
+};
+
+unsigned int omap_rev(void)
+{
+	return omap_revision;
+}
+EXPORT_SYMBOL(omap_rev);
+
+/*
+ * Get OMAP type from PROD_ID.
+ * 1710 has the PROD_ID in bits 15:00, not in 16:01 as documented in TRM.
+ * 1510 PROD_ID is empty, and 1610 PROD_ID does not make sense.
+ * Undocumented register in TEST BLOCK is used as fallback; This seems to
+ * work on 1510, 1610 & 1710. The official way hopefully will work in future
+ * processors.
+ */
+static u16 __init omap_get_jtag_id(void)
+{
+	u32 prod_id, omap_id;
+
+	prod_id = omap_readl(OMAP_PRODUCTION_ID_1);
+	omap_id = omap_readl(OMAP32_ID_1);
+
+	/* Check for unusable OMAP_PRODUCTION_ID_1 on 1611B/5912 and 730/850 */
+	if (((prod_id >> 20) == 0) || (prod_id == omap_id))
+		prod_id = 0;
+	else
+		prod_id &= 0xffff;
+
+	if (prod_id)
+		return prod_id;
+
+	/* Use OMAP32_ID_1 as fallback */
+	prod_id = ((omap_id >> 12) & 0xffff);
+
+	return prod_id;
+}
+
+/*
+ * Get OMAP revision from DIE_REV.
+ * Early 1710 processors may have broken OMAP_DIE_ID, it contains PROD_ID.
+ * Undocumented register in the TEST BLOCK is used as fallback.
+ * REVISIT: This does not seem to work on 1510
+ */
+static u8 __init omap_get_die_rev(void)
+{
+	u32 die_rev;
+
+	die_rev = omap_readl(OMAP_DIE_ID_1);
+
+	/* Check for broken OMAP_DIE_ID on early 1710 */
+	if (((die_rev >> 12) & 0xffff) == omap_get_jtag_id())
+		die_rev = 0;
+
+	die_rev = (die_rev >> 17) & 0xf;
+	if (die_rev)
+		return die_rev;
+
+	die_rev = (omap_readl(OMAP32_ID_1) >> 28) & 0xf;
+
+	return die_rev;
+}
+
+void __init omap_check_revision(void)
+{
+	int i;
+	u16 jtag_id;
+	u8 die_rev;
+	u32 omap_id;
+	u8 cpu_type;
+
+	jtag_id = omap_get_jtag_id();
+	die_rev = omap_get_die_rev();
+	omap_id = omap_readl(OMAP32_ID_0);
+
+#ifdef DEBUG
+	printk(KERN_DEBUG "OMAP_DIE_ID_0: 0x%08x\n", omap_readl(OMAP_DIE_ID_0));
+	printk(KERN_DEBUG "OMAP_DIE_ID_1: 0x%08x DIE_REV: %i\n",
+		omap_readl(OMAP_DIE_ID_1),
+	       (omap_readl(OMAP_DIE_ID_1) >> 17) & 0xf);
+	printk(KERN_DEBUG "OMAP_PRODUCTION_ID_0: 0x%08x\n",
+		omap_readl(OMAP_PRODUCTION_ID_0));
+	printk(KERN_DEBUG "OMAP_PRODUCTION_ID_1: 0x%08x JTAG_ID: 0x%04x\n",
+		omap_readl(OMAP_PRODUCTION_ID_1),
+		omap_readl(OMAP_PRODUCTION_ID_1) & 0xffff);
+	printk(KERN_DEBUG "OMAP32_ID_0: 0x%08x\n", omap_readl(OMAP32_ID_0));
+	printk(KERN_DEBUG "OMAP32_ID_1: 0x%08x\n", omap_readl(OMAP32_ID_1));
+	printk(KERN_DEBUG "JTAG_ID: 0x%04x DIE_REV: %i\n", jtag_id, die_rev);
+#endif
+
+	system_serial_high = omap_readl(OMAP_DIE_ID_0);
+	system_serial_low = omap_readl(OMAP_DIE_ID_1);
+
+	/* First check only the major version in a safe way */
+	for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
+		if (jtag_id == (omap_ids[i].jtag_id)) {
+			omap_revision = omap_ids[i].type;
+			break;
+		}
+	}
+
+	/* Check if we can find the die revision */
+	for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
+		if (jtag_id == omap_ids[i].jtag_id && die_rev == omap_ids[i].die_rev) {
+			omap_revision = omap_ids[i].type;
+			break;
+		}
+	}
+
+	/* Finally check also the omap_id */
+	for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
+		if (jtag_id == omap_ids[i].jtag_id
+		    && die_rev == omap_ids[i].die_rev
+		    && omap_id == omap_ids[i].omap_id) {
+			omap_revision = omap_ids[i].type;
+			break;
+		}
+	}
+
+	/* Add the cpu class info (7xx, 15xx, 16xx, 24xx) */
+	cpu_type = omap_revision >> 24;
+
+	switch (cpu_type) {
+	case 0x07:
+	case 0x08:
+		omap_revision |= 0x07;
+		break;
+	case 0x03:
+	case 0x15:
+		omap_revision |= 0x15;
+		break;
+	case 0x16:
+	case 0x17:
+		omap_revision |= 0x16;
+		break;
+	default:
+		printk(KERN_INFO "Unknown OMAP cpu type: 0x%02x\n", cpu_type);
+	}
+
+	pr_info("OMAP%04x", omap_revision >> 16);
+	if ((omap_revision >> 8) & 0xff)
+		pr_cont("%x", (omap_revision >> 8) & 0xff);
+	pr_cont(" revision %i handled as %02xxx id: %08x%08x\n",
+	       die_rev, omap_revision & 0xff, system_serial_low,
+	       system_serial_high);
+}
+
diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c
new file mode 100644
index 000000000..1f20fe99b
--- /dev/null
+++ b/arch/arm/mach-omap1/io.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/io.c
+ *
+ * OMAP1 I/O mapping code
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/omap-dma.h>
+
+#include <asm/tlb.h>
+#include <asm/mach/map.h>
+
+#include "tc.h"
+#include "iomap.h"
+#include "common.h"
+
+/*
+ * The machine specific code may provide the extra mapping besides the
+ * default mapping provided here.
+ */
+static struct map_desc omap1_io_desc[] __initdata = {
+	{
+		.virtual	= OMAP1_IO_VIRT,
+		.pfn		= __phys_to_pfn(OMAP1_IO_PHYS),
+		.length		= OMAP1_IO_SIZE,
+		.type		= MT_DEVICE
+	}, {
+		.virtual	= OMAP1_DSP_BASE,
+		.pfn		= __phys_to_pfn(OMAP1_DSP_START),
+		.length		= OMAP1_DSP_SIZE,
+		.type		= MT_DEVICE
+	}, {
+		.virtual	= OMAP1_DSPREG_BASE,
+		.pfn		= __phys_to_pfn(OMAP1_DSPREG_START),
+		.length		= OMAP1_DSPREG_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+
+/*
+ * Maps common IO regions for omap1
+ */
+void __init omap1_map_io(void)
+{
+	iotable_init(omap1_io_desc, ARRAY_SIZE(omap1_io_desc));
+}
+
+/*
+ * Common low-level hardware init for omap1.
+ */
+void __init omap1_init_early(void)
+{
+	omap_check_revision();
+
+	/* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
+	 * on a Posted Write in the TIPB Bridge".
+	 */
+	omap_writew(0x0, MPU_PUBLIC_TIPB_CNTL);
+	omap_writew(0x0, MPU_PRIVATE_TIPB_CNTL);
+}
+
+void __init omap1_init_late(void)
+{
+	omap_serial_wakeup_init();
+}
+
+/*
+ * NOTE: Please use ioremap + __raw_read/write where possible instead of these
+ */
+
+u8 omap_readb(u32 pa)
+{
+	return __raw_readb(OMAP1_IO_ADDRESS(pa));
+}
+EXPORT_SYMBOL(omap_readb);
+
+u16 omap_readw(u32 pa)
+{
+	return __raw_readw(OMAP1_IO_ADDRESS(pa));
+}
+EXPORT_SYMBOL(omap_readw);
+
+u32 omap_readl(u32 pa)
+{
+	return __raw_readl(OMAP1_IO_ADDRESS(pa));
+}
+EXPORT_SYMBOL(omap_readl);
+
+void omap_writeb(u8 v, u32 pa)
+{
+	__raw_writeb(v, OMAP1_IO_ADDRESS(pa));
+}
+EXPORT_SYMBOL(omap_writeb);
+
+void omap_writew(u16 v, u32 pa)
+{
+	__raw_writew(v, OMAP1_IO_ADDRESS(pa));
+}
+EXPORT_SYMBOL(omap_writew);
+
+void omap_writel(u32 v, u32 pa)
+{
+	__raw_writel(v, OMAP1_IO_ADDRESS(pa));
+}
+EXPORT_SYMBOL(omap_writel);
diff --git a/arch/arm/mach-omap1/iomap.h b/arch/arm/mach-omap1/iomap.h
new file mode 100644
index 000000000..f4e2d7a21
--- /dev/null
+++ b/arch/arm/mach-omap1/iomap.h
@@ -0,0 +1,33 @@
+/*
+ * IO mappings for OMAP1
+ *
+ * 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.
+ */
+
+/*
+ * ----------------------------------------------------------------------------
+ * Omap1 specific IO mapping
+ * ----------------------------------------------------------------------------
+ */
+
+#define OMAP1_IO_PHYS		0xFFFB0000
+#define OMAP1_IO_SIZE		0x40000
+#define OMAP1_IO_VIRT		(OMAP1_IO_PHYS - OMAP1_IO_OFFSET)
diff --git a/arch/arm/mach-omap1/irq.c b/arch/arm/mach-omap1/irq.c
new file mode 100644
index 000000000..bb1bc060e
--- /dev/null
+++ b/arch/arm/mach-omap1/irq.c
@@ -0,0 +1,258 @@
+/*
+ * linux/arch/arm/mach-omap1/irq.c
+ *
+ * Interrupt handler for all OMAP boards
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Written by Tony Lindgren <tony@atomide.com>
+ * Major cleanups by Juha Yrjölä <juha.yrjola@nokia.com>
+ *
+ * Completely re-written to support various OMAP chips with bank specific
+ * interrupt handlers.
+ *
+ * Some snippets of the code taken from the older OMAP interrupt handler
+ * Copyright (C) 2001 RidgeRun, Inc. Greg Lonnon <glonnon@ridgerun.com>
+ *
+ * GPIO interrupt handler moved to gpio.c by Juha Yrjola
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irqdomain.h>
+
+#include <asm/irq.h>
+#include <asm/exception.h>
+#include <asm/mach/irq.h>
+
+#include "soc.h"
+#include "hardware.h"
+#include "common.h"
+
+#define IRQ_BANK(irq) ((irq) >> 5)
+#define IRQ_BIT(irq)  ((irq) & 0x1f)
+
+struct omap_irq_bank {
+	unsigned long base_reg;
+	void __iomem *va;
+	unsigned long trigger_map;
+	unsigned long wake_enable;
+};
+
+static u32 omap_l2_irq;
+static unsigned int irq_bank_count;
+static struct omap_irq_bank *irq_banks;
+static struct irq_domain *domain;
+
+static inline unsigned int irq_bank_readl(int bank, int offset)
+{
+	return readl_relaxed(irq_banks[bank].va + offset);
+}
+static inline void irq_bank_writel(unsigned long value, int bank, int offset)
+{
+	writel_relaxed(value, irq_banks[bank].va + offset);
+}
+
+static void omap_ack_irq(int irq)
+{
+	if (irq > 31)
+		writel_relaxed(0x1, irq_banks[1].va + IRQ_CONTROL_REG_OFFSET);
+
+	writel_relaxed(0x1, irq_banks[0].va + IRQ_CONTROL_REG_OFFSET);
+}
+
+static void omap_mask_ack_irq(struct irq_data *d)
+{
+	struct irq_chip_type *ct = irq_data_get_chip_type(d);
+
+	ct->chip.irq_mask(d);
+	omap_ack_irq(d->irq);
+}
+
+/*
+ * Allows tuning the IRQ type and priority
+ *
+ * NOTE: There is currently no OMAP fiq handler for Linux. Read the
+ *	 mailing list threads on FIQ handlers if you are planning to
+ *	 add a FIQ handler for OMAP.
+ */
+static void omap_irq_set_cfg(int irq, int fiq, int priority, int trigger)
+{
+	signed int bank;
+	unsigned long val, offset;
+
+	bank = IRQ_BANK(irq);
+	/* FIQ is only available on bank 0 interrupts */
+	fiq = bank ? 0 : (fiq & 0x1);
+	val = fiq | ((priority & 0x1f) << 2) | ((trigger & 0x1) << 1);
+	offset = IRQ_ILR0_REG_OFFSET + IRQ_BIT(irq) * 0x4;
+	irq_bank_writel(val, bank, offset);
+}
+
+#ifdef CONFIG_ARCH_OMAP15XX
+static struct omap_irq_bank omap1510_irq_banks[] = {
+	{ .base_reg = OMAP_IH1_BASE,		.trigger_map = 0xb3febfff },
+	{ .base_reg = OMAP_IH2_BASE,		.trigger_map = 0xffbfffed },
+};
+static struct omap_irq_bank omap310_irq_banks[] = {
+	{ .base_reg = OMAP_IH1_BASE,		.trigger_map = 0xb3faefc3 },
+	{ .base_reg = OMAP_IH2_BASE,		.trigger_map = 0x65b3c061 },
+};
+#endif
+
+#if defined(CONFIG_ARCH_OMAP16XX)
+
+static struct omap_irq_bank omap1610_irq_banks[] = {
+	{ .base_reg = OMAP_IH1_BASE,		.trigger_map = 0xb3fefe8f },
+	{ .base_reg = OMAP_IH2_BASE,		.trigger_map = 0xfdb7c1fd },
+	{ .base_reg = OMAP_IH2_BASE + 0x100,	.trigger_map = 0xffffb7ff },
+	{ .base_reg = OMAP_IH2_BASE + 0x200,	.trigger_map = 0xffffffff },
+};
+#endif
+
+asmlinkage void __exception_irq_entry omap1_handle_irq(struct pt_regs *regs)
+{
+	void __iomem *l1 = irq_banks[0].va;
+	void __iomem *l2 = irq_banks[1].va;
+	u32 irqnr;
+
+	do {
+		irqnr = readl_relaxed(l1 + IRQ_ITR_REG_OFFSET);
+		irqnr &= ~(readl_relaxed(l1 + IRQ_MIR_REG_OFFSET) & 0xffffffff);
+		if (!irqnr)
+			break;
+
+		irqnr = readl_relaxed(l1 + IRQ_SIR_FIQ_REG_OFFSET);
+		if (irqnr)
+			goto irq;
+
+		irqnr = readl_relaxed(l1 + IRQ_SIR_IRQ_REG_OFFSET);
+		if (irqnr == omap_l2_irq) {
+			irqnr = readl_relaxed(l2 + IRQ_SIR_IRQ_REG_OFFSET);
+			if (irqnr)
+				irqnr += 32;
+		}
+irq:
+		if (irqnr)
+			generic_handle_domain_irq(domain, irqnr);
+		else
+			break;
+	} while (irqnr);
+}
+
+static __init void
+omap_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num)
+{
+	struct irq_chip_generic *gc;
+	struct irq_chip_type *ct;
+
+	gc = irq_alloc_generic_chip("MPU", 1, irq_start, base,
+				    handle_level_irq);
+	ct = gc->chip_types;
+	ct->chip.irq_ack = omap_mask_ack_irq;
+	ct->chip.irq_mask = irq_gc_mask_set_bit;
+	ct->chip.irq_unmask = irq_gc_mask_clr_bit;
+	ct->chip.irq_set_wake = irq_gc_set_wake;
+	ct->regs.mask = IRQ_MIR_REG_OFFSET;
+	irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE,
+			       IRQ_NOREQUEST | IRQ_NOPROBE, 0);
+}
+
+void __init omap1_init_irq(void)
+{
+	struct irq_chip_type *ct;
+	struct irq_data *d = NULL;
+	int i, j, irq_base;
+	unsigned long nr_irqs;
+
+#ifdef CONFIG_ARCH_OMAP15XX
+	if (cpu_is_omap1510()) {
+		irq_banks = omap1510_irq_banks;
+		irq_bank_count = ARRAY_SIZE(omap1510_irq_banks);
+	}
+	if (cpu_is_omap310()) {
+		irq_banks = omap310_irq_banks;
+		irq_bank_count = ARRAY_SIZE(omap310_irq_banks);
+	}
+#endif
+#if defined(CONFIG_ARCH_OMAP16XX)
+	if (cpu_is_omap16xx()) {
+		irq_banks = omap1610_irq_banks;
+		irq_bank_count = ARRAY_SIZE(omap1610_irq_banks);
+	}
+#endif
+
+	for (i = 0; i < irq_bank_count; i++) {
+		irq_banks[i].va = ioremap(irq_banks[i].base_reg, 0xff);
+		if (WARN_ON(!irq_banks[i].va))
+			return;
+	}
+
+	nr_irqs = irq_bank_count * 32;
+
+	irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0);
+	if (irq_base < 0) {
+		pr_warn("Couldn't allocate IRQ numbers\n");
+		irq_base = 0;
+	}
+	omap_l2_irq = irq_base;
+	omap_l2_irq -= NR_IRQS_LEGACY;
+
+	domain = irq_domain_create_legacy(NULL, nr_irqs, irq_base, 0, &irq_domain_simple_ops, NULL);
+
+	pr_info("Total of %lu interrupts in %i interrupt banks\n",
+		nr_irqs, irq_bank_count);
+
+	/* Mask and clear all interrupts */
+	for (i = 0; i < irq_bank_count; i++) {
+		irq_bank_writel(~0x0, i, IRQ_MIR_REG_OFFSET);
+		irq_bank_writel(0x0, i, IRQ_ITR_REG_OFFSET);
+	}
+
+	/* Clear any pending interrupts */
+	irq_bank_writel(0x03, 0, IRQ_CONTROL_REG_OFFSET);
+	irq_bank_writel(0x03, 1, IRQ_CONTROL_REG_OFFSET);
+
+	/* Install the interrupt handlers for each bank */
+	for (i = 0; i < irq_bank_count; i++) {
+		for (j = i * 32; j < (i + 1) * 32; j++) {
+			int irq_trigger;
+
+			irq_trigger = irq_banks[i].trigger_map >> IRQ_BIT(j);
+			omap_irq_set_cfg(j, 0, 0, irq_trigger);
+			irq_clear_status_flags(j, IRQ_NOREQUEST);
+		}
+		omap_alloc_gc(irq_banks[i].va, irq_base + i * 32, 32);
+	}
+
+	/* Unmask level 2 handler */
+	d = irq_get_irq_data(irq_find_mapping(domain, omap_l2_irq));
+	if (d) {
+		ct = irq_data_get_chip_type(d);
+		ct->chip.irq_unmask(d);
+	}
+
+	set_handle_irq(omap1_handle_irq);
+}
diff --git a/arch/arm/mach-omap1/irqs.h b/arch/arm/mach-omap1/irqs.h
new file mode 100644
index 000000000..3ab7050b1
--- /dev/null
+++ b/arch/arm/mach-omap1/irqs.h
@@ -0,0 +1,240 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *  Copyright (C) Greg Lonnon 2001
+ *  Updated for OMAP-1610 by Tony Lindgren <tony@atomide.com>
+ *
+ * Copyright (C) 2009 Texas Instruments
+ * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * NOTE: The interrupt vectors for the OMAP-1509, OMAP-1510, and OMAP-1610
+ *	 are different.
+ */
+
+#ifndef __ASM_ARCH_OMAP15XX_IRQS_H
+#define __ASM_ARCH_OMAP15XX_IRQS_H
+
+/*
+ * IRQ numbers for interrupt handler 1
+ *
+ * NOTE: See also the OMAP-1510 and 1610 specific IRQ numbers below
+ *
+ */
+#define INT_CAMERA		(NR_IRQS_LEGACY + 1)
+#define INT_FIQ			(NR_IRQS_LEGACY + 3)
+#define INT_RTDX		(NR_IRQS_LEGACY + 6)
+#define INT_DSP_MMU_ABORT	(NR_IRQS_LEGACY + 7)
+#define INT_HOST		(NR_IRQS_LEGACY + 8)
+#define INT_ABORT		(NR_IRQS_LEGACY + 9)
+#define INT_BRIDGE_PRIV		(NR_IRQS_LEGACY + 13)
+#define INT_GPIO_BANK1		(NR_IRQS_LEGACY + 14)
+#define INT_UART3		(NR_IRQS_LEGACY + 15)
+#define INT_TIMER3		(NR_IRQS_LEGACY + 16)
+#define INT_DMA_CH0_6		(NR_IRQS_LEGACY + 19)
+#define INT_DMA_CH1_7		(NR_IRQS_LEGACY + 20)
+#define INT_DMA_CH2_8		(NR_IRQS_LEGACY + 21)
+#define INT_DMA_CH3		(NR_IRQS_LEGACY + 22)
+#define INT_DMA_CH4		(NR_IRQS_LEGACY + 23)
+#define INT_DMA_CH5		(NR_IRQS_LEGACY + 24)
+#define INT_TIMER1		(NR_IRQS_LEGACY + 26)
+#define INT_WD_TIMER		(NR_IRQS_LEGACY + 27)
+#define INT_BRIDGE_PUB		(NR_IRQS_LEGACY + 28)
+#define INT_TIMER2		(NR_IRQS_LEGACY + 30)
+#define INT_LCD_CTRL		(NR_IRQS_LEGACY + 31)
+
+/*
+ * OMAP-1510 specific IRQ numbers for interrupt handler 1
+ */
+#define INT_1510_IH2_IRQ	(NR_IRQS_LEGACY + 0)
+#define INT_1510_RES2		(NR_IRQS_LEGACY + 2)
+#define INT_1510_SPI_TX		(NR_IRQS_LEGACY + 4)
+#define INT_1510_SPI_RX		(NR_IRQS_LEGACY + 5)
+#define INT_1510_DSP_MAILBOX1	(NR_IRQS_LEGACY + 10)
+#define INT_1510_DSP_MAILBOX2	(NR_IRQS_LEGACY + 11)
+#define INT_1510_RES12		(NR_IRQS_LEGACY + 12)
+#define INT_1510_LB_MMU		(NR_IRQS_LEGACY + 17)
+#define INT_1510_RES18		(NR_IRQS_LEGACY + 18)
+#define INT_1510_LOCAL_BUS	(NR_IRQS_LEGACY + 29)
+
+/*
+ * OMAP-1610 specific IRQ numbers for interrupt handler 1
+ */
+#define INT_1610_IH2_IRQ	INT_1510_IH2_IRQ
+#define INT_1610_IH2_FIQ	(NR_IRQS_LEGACY + 2)
+#define INT_1610_McBSP2_TX	(NR_IRQS_LEGACY + 4)
+#define INT_1610_McBSP2_RX	(NR_IRQS_LEGACY + 5)
+#define INT_1610_DSP_MAILBOX1	(NR_IRQS_LEGACY + 10)
+#define INT_1610_DSP_MAILBOX2	(NR_IRQS_LEGACY + 11)
+#define INT_1610_LCD_LINE	(NR_IRQS_LEGACY + 12)
+#define INT_1610_GPTIMER1	(NR_IRQS_LEGACY + 17)
+#define INT_1610_GPTIMER2	(NR_IRQS_LEGACY + 18)
+#define INT_1610_SSR_FIFO_0	(NR_IRQS_LEGACY + 29)
+
+/*
+ * OMAP-7xx specific IRQ numbers for interrupt handler 1
+ */
+#define INT_7XX_IH2_FIQ		(NR_IRQS_LEGACY + 0)
+#define INT_7XX_IH2_IRQ		(NR_IRQS_LEGACY + 1)
+#define INT_7XX_USB_NON_ISO	(NR_IRQS_LEGACY + 2)
+#define INT_7XX_USB_ISO		(NR_IRQS_LEGACY + 3)
+#define INT_7XX_ICR		(NR_IRQS_LEGACY + 4)
+#define INT_7XX_EAC		(NR_IRQS_LEGACY + 5)
+#define INT_7XX_GPIO_BANK1	(NR_IRQS_LEGACY + 6)
+#define INT_7XX_GPIO_BANK2	(NR_IRQS_LEGACY + 7)
+#define INT_7XX_GPIO_BANK3	(NR_IRQS_LEGACY + 8)
+#define INT_7XX_McBSP2TX	(NR_IRQS_LEGACY + 10)
+#define INT_7XX_McBSP2RX	(NR_IRQS_LEGACY + 11)
+#define INT_7XX_McBSP2RX_OVF	(NR_IRQS_LEGACY + 12)
+#define INT_7XX_LCD_LINE	(NR_IRQS_LEGACY + 14)
+#define INT_7XX_GSM_PROTECT	(NR_IRQS_LEGACY + 15)
+#define INT_7XX_TIMER3		(NR_IRQS_LEGACY + 16)
+#define INT_7XX_GPIO_BANK5	(NR_IRQS_LEGACY + 17)
+#define INT_7XX_GPIO_BANK6	(NR_IRQS_LEGACY + 18)
+#define INT_7XX_SPGIO_WR	(NR_IRQS_LEGACY + 29)
+
+/*
+ * IRQ numbers for interrupt handler 2
+ *
+ * NOTE: See also the OMAP-1510 and 1610 specific IRQ numbers below
+ */
+#define IH2_BASE		(NR_IRQS_LEGACY + 32)
+
+#define INT_KEYBOARD		(1 + IH2_BASE)
+#define INT_uWireTX		(2 + IH2_BASE)
+#define INT_uWireRX		(3 + IH2_BASE)
+#define INT_I2C			(4 + IH2_BASE)
+#define INT_MPUIO		(5 + IH2_BASE)
+#define INT_USB_HHC_1		(6 + IH2_BASE)
+#define INT_McBSP3TX		(10 + IH2_BASE)
+#define INT_McBSP3RX		(11 + IH2_BASE)
+#define INT_McBSP1TX		(12 + IH2_BASE)
+#define INT_McBSP1RX		(13 + IH2_BASE)
+#define INT_UART1		(14 + IH2_BASE)
+#define INT_UART2		(15 + IH2_BASE)
+#define INT_BT_MCSI1TX		(16 + IH2_BASE)
+#define INT_BT_MCSI1RX		(17 + IH2_BASE)
+#define INT_SOSSI_MATCH		(19 + IH2_BASE)
+#define INT_USB_W2FC		(20 + IH2_BASE)
+#define INT_1WIRE		(21 + IH2_BASE)
+#define INT_OS_TIMER		(22 + IH2_BASE)
+#define INT_MMC			(23 + IH2_BASE)
+#define INT_GAUGE_32K		(24 + IH2_BASE)
+#define INT_RTC_TIMER		(25 + IH2_BASE)
+#define INT_RTC_ALARM		(26 + IH2_BASE)
+#define INT_MEM_STICK		(27 + IH2_BASE)
+
+/*
+ * OMAP-1510 specific IRQ numbers for interrupt handler 2
+ */
+#define INT_1510_DSP_MMU	(28 + IH2_BASE)
+#define INT_1510_COM_SPI_RO	(31 + IH2_BASE)
+
+/*
+ * OMAP-1610 specific IRQ numbers for interrupt handler 2
+ */
+#define INT_1610_FAC		(0 + IH2_BASE)
+#define INT_1610_USB_HHC_2	(7 + IH2_BASE)
+#define INT_1610_USB_OTG	(8 + IH2_BASE)
+#define INT_1610_SoSSI		(9 + IH2_BASE)
+#define INT_1610_SoSSI_MATCH	(19 + IH2_BASE)
+#define INT_1610_DSP_MMU	(28 + IH2_BASE)
+#define INT_1610_McBSP2RX_OF	(31 + IH2_BASE)
+#define INT_1610_STI		(32 + IH2_BASE)
+#define INT_1610_STI_WAKEUP	(33 + IH2_BASE)
+#define INT_1610_GPTIMER3	(34 + IH2_BASE)
+#define INT_1610_GPTIMER4	(35 + IH2_BASE)
+#define INT_1610_GPTIMER5	(36 + IH2_BASE)
+#define INT_1610_GPTIMER6	(37 + IH2_BASE)
+#define INT_1610_GPTIMER7	(38 + IH2_BASE)
+#define INT_1610_GPTIMER8	(39 + IH2_BASE)
+#define INT_1610_GPIO_BANK2	(40 + IH2_BASE)
+#define INT_1610_GPIO_BANK3	(41 + IH2_BASE)
+#define INT_1610_MMC2		(42 + IH2_BASE)
+#define INT_1610_CF		(43 + IH2_BASE)
+#define INT_1610_WAKE_UP_REQ	(46 + IH2_BASE)
+#define INT_1610_GPIO_BANK4	(48 + IH2_BASE)
+#define INT_1610_SPI		(49 + IH2_BASE)
+#define INT_1610_DMA_CH6	(53 + IH2_BASE)
+#define INT_1610_DMA_CH7	(54 + IH2_BASE)
+#define INT_1610_DMA_CH8	(55 + IH2_BASE)
+#define INT_1610_DMA_CH9	(56 + IH2_BASE)
+#define INT_1610_DMA_CH10	(57 + IH2_BASE)
+#define INT_1610_DMA_CH11	(58 + IH2_BASE)
+#define INT_1610_DMA_CH12	(59 + IH2_BASE)
+#define INT_1610_DMA_CH13	(60 + IH2_BASE)
+#define INT_1610_DMA_CH14	(61 + IH2_BASE)
+#define INT_1610_DMA_CH15	(62 + IH2_BASE)
+#define INT_1610_NAND		(63 + IH2_BASE)
+#define INT_1610_SHA1MD5	(91 + IH2_BASE)
+
+/*
+ * OMAP-7xx specific IRQ numbers for interrupt handler 2
+ */
+#define INT_7XX_HW_ERRORS	(0 + IH2_BASE)
+#define INT_7XX_NFIQ_PWR_FAIL	(1 + IH2_BASE)
+#define INT_7XX_CFCD		(2 + IH2_BASE)
+#define INT_7XX_CFIREQ		(3 + IH2_BASE)
+#define INT_7XX_I2C		(4 + IH2_BASE)
+#define INT_7XX_PCC		(5 + IH2_BASE)
+#define INT_7XX_MPU_EXT_NIRQ	(6 + IH2_BASE)
+#define INT_7XX_SPI_100K_1	(7 + IH2_BASE)
+#define INT_7XX_SYREN_SPI	(8 + IH2_BASE)
+#define INT_7XX_VLYNQ		(9 + IH2_BASE)
+#define INT_7XX_GPIO_BANK4	(10 + IH2_BASE)
+#define INT_7XX_McBSP1TX	(11 + IH2_BASE)
+#define INT_7XX_McBSP1RX	(12 + IH2_BASE)
+#define INT_7XX_McBSP1RX_OF	(13 + IH2_BASE)
+#define INT_7XX_UART_MODEM_IRDA_2 (14 + IH2_BASE)
+#define INT_7XX_UART_MODEM_1	(15 + IH2_BASE)
+#define INT_7XX_MCSI		(16 + IH2_BASE)
+#define INT_7XX_uWireTX		(17 + IH2_BASE)
+#define INT_7XX_uWireRX		(18 + IH2_BASE)
+#define INT_7XX_SMC_CD		(19 + IH2_BASE)
+#define INT_7XX_SMC_IREQ	(20 + IH2_BASE)
+#define INT_7XX_HDQ_1WIRE	(21 + IH2_BASE)
+#define INT_7XX_TIMER32K	(22 + IH2_BASE)
+#define INT_7XX_MMC_SDIO	(23 + IH2_BASE)
+#define INT_7XX_UPLD		(24 + IH2_BASE)
+#define INT_7XX_USB_HHC_1	(27 + IH2_BASE)
+#define INT_7XX_USB_HHC_2	(28 + IH2_BASE)
+#define INT_7XX_USB_GENI	(29 + IH2_BASE)
+#define INT_7XX_USB_OTG		(30 + IH2_BASE)
+#define INT_7XX_CAMERA_IF	(31 + IH2_BASE)
+#define INT_7XX_RNG		(32 + IH2_BASE)
+#define INT_7XX_DUAL_MODE_TIMER (33 + IH2_BASE)
+#define INT_7XX_DBB_RF_EN	(34 + IH2_BASE)
+#define INT_7XX_MPUIO_KEYPAD	(35 + IH2_BASE)
+#define INT_7XX_SHA1_MD5	(36 + IH2_BASE)
+#define INT_7XX_SPI_100K_2	(37 + IH2_BASE)
+#define INT_7XX_RNG_IDLE	(38 + IH2_BASE)
+#define INT_7XX_MPUIO		(39 + IH2_BASE)
+#define INT_7XX_LLPC_LCD_CTRL_CAN_BE_OFF	(40 + IH2_BASE)
+#define INT_7XX_LLPC_OE_FALLING (41 + IH2_BASE)
+#define INT_7XX_LLPC_OE_RISING	(42 + IH2_BASE)
+#define INT_7XX_LLPC_VSYNC	(43 + IH2_BASE)
+#define INT_7XX_WAKE_UP_REQ	(46 + IH2_BASE)
+#define INT_7XX_DMA_CH6		(53 + IH2_BASE)
+#define INT_7XX_DMA_CH7		(54 + IH2_BASE)
+#define INT_7XX_DMA_CH8		(55 + IH2_BASE)
+#define INT_7XX_DMA_CH9		(56 + IH2_BASE)
+#define INT_7XX_DMA_CH10	(57 + IH2_BASE)
+#define INT_7XX_DMA_CH11	(58 + IH2_BASE)
+#define INT_7XX_DMA_CH12	(59 + IH2_BASE)
+#define INT_7XX_DMA_CH13	(60 + IH2_BASE)
+#define INT_7XX_DMA_CH14	(61 + IH2_BASE)
+#define INT_7XX_DMA_CH15	(62 + IH2_BASE)
+#define INT_7XX_NAND		(63 + IH2_BASE)
+
+/* Max. 128 level 2 IRQs (OMAP1610), 192 GPIOs (OMAP730/850) and
+ * 16 MPUIO lines */
+#define OMAP_MAX_GPIO_LINES	192
+#define IH_GPIO_BASE		(128 + IH2_BASE)
+#define IH_MPUIO_BASE		(OMAP_MAX_GPIO_LINES + IH_GPIO_BASE)
+#define OMAP_IRQ_END		(IH_MPUIO_BASE + 16)
+
+#define OMAP_IRQ_BIT(irq)	(1 << ((irq - NR_IRQS_LEGACY) % 32))
+
+#ifdef CONFIG_FIQ
+#define FIQ_START		1024
+#endif
+
+#endif
diff --git a/arch/arm/mach-omap1/mcbsp.c b/arch/arm/mach-omap1/mcbsp.c
new file mode 100644
index 000000000..b6cce510c
--- /dev/null
+++ b/arch/arm/mach-omap1/mcbsp.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/mcbsp.c
+ *
+ * Copyright (C) 2008 Instituto Nokia de Tecnologia
+ * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br>
+ *
+ * Multichannel mode not supported.
+ */
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/omap-dma.h>
+#include <linux/soc/ti/omap1-io.h>
+#include <linux/platform_data/asoc-ti-mcbsp.h>
+
+#include "mux.h"
+#include "soc.h"
+#include "irqs.h"
+#include "iomap.h"
+
+#define DPS_RSTCT2_PER_EN	(1 << 0)
+#define DSP_RSTCT2_WD_PER_EN	(1 << 1)
+
+static int dsp_use;
+static struct clk *api_clk;
+static struct clk *dsp_clk;
+static struct platform_device **omap_mcbsp_devices;
+
+static void omap1_mcbsp_request(unsigned int id)
+{
+	/*
+	 * On 1510, 1610 and 1710, McBSP1 and McBSP3
+	 * are DSP public peripherals.
+	 */
+	if (id == 0 || id == 2) {
+		if (dsp_use++ == 0) {
+			api_clk = clk_get(NULL, "api_ck");
+			dsp_clk = clk_get(NULL, "dsp_ck");
+			if (!IS_ERR(api_clk) && !IS_ERR(dsp_clk)) {
+				clk_prepare_enable(api_clk);
+				clk_prepare_enable(dsp_clk);
+
+				/*
+				 * DSP external peripheral reset
+				 * FIXME: This should be moved to dsp code
+				 */
+				__raw_writew(__raw_readw(DSP_RSTCT2) | DPS_RSTCT2_PER_EN |
+						DSP_RSTCT2_WD_PER_EN, DSP_RSTCT2);
+			}
+		}
+	}
+}
+
+static void omap1_mcbsp_free(unsigned int id)
+{
+	if (id == 0 || id == 2) {
+		if (--dsp_use == 0) {
+			if (!IS_ERR(api_clk)) {
+				clk_disable_unprepare(api_clk);
+				clk_put(api_clk);
+			}
+			if (!IS_ERR(dsp_clk)) {
+				clk_disable_unprepare(dsp_clk);
+				clk_put(dsp_clk);
+			}
+		}
+	}
+}
+
+static struct omap_mcbsp_ops omap1_mcbsp_ops = {
+	.request	= omap1_mcbsp_request,
+	.free		= omap1_mcbsp_free,
+};
+
+#define OMAP7XX_MCBSP1_BASE	0xfffb1000
+#define OMAP7XX_MCBSP2_BASE	0xfffb1800
+
+#define OMAP1510_MCBSP1_BASE	0xe1011800
+#define OMAP1510_MCBSP2_BASE	0xfffb1000
+#define OMAP1510_MCBSP3_BASE	0xe1017000
+
+#define OMAP1610_MCBSP1_BASE	0xe1011800
+#define OMAP1610_MCBSP2_BASE	0xfffb1000
+#define OMAP1610_MCBSP3_BASE	0xe1017000
+
+struct resource omap15xx_mcbsp_res[][6] = {
+	{
+		{
+			.start = OMAP1510_MCBSP1_BASE,
+			.end   = OMAP1510_MCBSP1_BASE + SZ_256,
+			.flags = IORESOURCE_MEM,
+		},
+		{
+			.name  = "rx",
+			.start = INT_McBSP1RX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "tx",
+			.start = INT_McBSP1TX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "rx",
+			.start = 9,
+			.flags = IORESOURCE_DMA,
+		},
+		{
+			.name  = "tx",
+			.start = 8,
+			.flags = IORESOURCE_DMA,
+		},
+	},
+	{
+		{
+			.start = OMAP1510_MCBSP2_BASE,
+			.end   = OMAP1510_MCBSP2_BASE + SZ_256,
+			.flags = IORESOURCE_MEM,
+		},
+		{
+			.name  = "rx",
+			.start = INT_1510_SPI_RX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "tx",
+			.start = INT_1510_SPI_TX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "rx",
+			.start = 17,
+			.flags = IORESOURCE_DMA,
+		},
+		{
+			.name  = "tx",
+			.start = 16,
+			.flags = IORESOURCE_DMA,
+		},
+	},
+	{
+		{
+			.start = OMAP1510_MCBSP3_BASE,
+			.end   = OMAP1510_MCBSP3_BASE + SZ_256,
+			.flags = IORESOURCE_MEM,
+		},
+		{
+			.name  = "rx",
+			.start = INT_McBSP3RX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "tx",
+			.start = INT_McBSP3TX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "rx",
+			.start = 11,
+			.flags = IORESOURCE_DMA,
+		},
+		{
+			.name  = "tx",
+			.start = 10,
+			.flags = IORESOURCE_DMA,
+		},
+	},
+};
+
+#define omap15xx_mcbsp_res_0		omap15xx_mcbsp_res[0]
+
+static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
+	{
+		.ops		= &omap1_mcbsp_ops,
+	},
+	{
+		.ops		= &omap1_mcbsp_ops,
+	},
+	{
+		.ops		= &omap1_mcbsp_ops,
+	},
+};
+#define OMAP15XX_MCBSP_RES_SZ		ARRAY_SIZE(omap15xx_mcbsp_res[1])
+#define OMAP15XX_MCBSP_COUNT		ARRAY_SIZE(omap15xx_mcbsp_res)
+
+struct resource omap16xx_mcbsp_res[][6] = {
+	{
+		{
+			.start = OMAP1610_MCBSP1_BASE,
+			.end   = OMAP1610_MCBSP1_BASE + SZ_256,
+			.flags = IORESOURCE_MEM,
+		},
+		{
+			.name  = "rx",
+			.start = INT_McBSP1RX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "tx",
+			.start = INT_McBSP1TX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "rx",
+			.start = 9,
+			.flags = IORESOURCE_DMA,
+		},
+		{
+			.name  = "tx",
+			.start = 8,
+			.flags = IORESOURCE_DMA,
+		},
+	},
+	{
+		{
+			.start = OMAP1610_MCBSP2_BASE,
+			.end   = OMAP1610_MCBSP2_BASE + SZ_256,
+			.flags = IORESOURCE_MEM,
+		},
+		{
+			.name  = "rx",
+			.start = INT_1610_McBSP2_RX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "tx",
+			.start = INT_1610_McBSP2_TX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "rx",
+			.start = 17,
+			.flags = IORESOURCE_DMA,
+		},
+		{
+			.name  = "tx",
+			.start = 16,
+			.flags = IORESOURCE_DMA,
+		},
+	},
+	{
+		{
+			.start = OMAP1610_MCBSP3_BASE,
+			.end   = OMAP1610_MCBSP3_BASE + SZ_256,
+			.flags = IORESOURCE_MEM,
+		},
+		{
+			.name  = "rx",
+			.start = INT_McBSP3RX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "tx",
+			.start = INT_McBSP3TX,
+			.flags = IORESOURCE_IRQ,
+		},
+		{
+			.name  = "rx",
+			.start = 11,
+			.flags = IORESOURCE_DMA,
+		},
+		{
+			.name  = "tx",
+			.start = 10,
+			.flags = IORESOURCE_DMA,
+		},
+	},
+};
+
+#define omap16xx_mcbsp_res_0		omap16xx_mcbsp_res[0]
+
+static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
+	{
+		.ops		= &omap1_mcbsp_ops,
+	},
+	{
+		.ops		= &omap1_mcbsp_ops,
+	},
+	{
+		.ops		= &omap1_mcbsp_ops,
+	},
+};
+#define OMAP16XX_MCBSP_RES_SZ		ARRAY_SIZE(omap16xx_mcbsp_res[1])
+#define OMAP16XX_MCBSP_COUNT		ARRAY_SIZE(omap16xx_mcbsp_res)
+
+static void omap_mcbsp_register_board_cfg(struct resource *res, int res_count,
+			struct omap_mcbsp_platform_data *config, int size)
+{
+	int i;
+
+	omap_mcbsp_devices = kzalloc_objs(struct platform_device *, size);
+	if (!omap_mcbsp_devices) {
+		printk(KERN_ERR "Could not register McBSP devices\n");
+		return;
+	}
+
+	for (i = 0; i < size; i++) {
+		struct platform_device *new_mcbsp;
+		int ret;
+
+		new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
+		if (!new_mcbsp)
+			continue;
+		platform_device_add_resources(new_mcbsp, &res[i * res_count],
+					res_count);
+		config[i].reg_size = 2;
+		config[i].reg_step = 2;
+		new_mcbsp->dev.platform_data = &config[i];
+		ret = platform_device_add(new_mcbsp);
+		if (ret) {
+			platform_device_put(new_mcbsp);
+			continue;
+		}
+		omap_mcbsp_devices[i] = new_mcbsp;
+	}
+}
+
+static int __init omap1_mcbsp_init(void)
+{
+	if (!cpu_class_is_omap1())
+		return -ENODEV;
+
+	if (cpu_is_omap15xx())
+		omap_mcbsp_register_board_cfg(omap15xx_mcbsp_res_0,
+					OMAP15XX_MCBSP_RES_SZ,
+					omap15xx_mcbsp_pdata,
+					OMAP15XX_MCBSP_COUNT);
+
+	if (cpu_is_omap16xx())
+		omap_mcbsp_register_board_cfg(omap16xx_mcbsp_res_0,
+					OMAP16XX_MCBSP_RES_SZ,
+					omap16xx_mcbsp_pdata,
+					OMAP16XX_MCBSP_COUNT);
+
+	return 0;
+}
+
+arch_initcall(omap1_mcbsp_init);
diff --git a/arch/arm/mach-omap1/mmc.h b/arch/arm/mach-omap1/mmc.h
new file mode 100644
index 000000000..043bd02f3
--- /dev/null
+++ b/arch/arm/mach-omap1/mmc.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/mmc/host.h>
+#include <linux/platform_data/mmc-omap.h>
+
+#define OMAP15XX_NR_MMC		1
+#define OMAP16XX_NR_MMC		2
+#define OMAP1_MMC_SIZE		0x080
+#define OMAP1_MMC1_BASE		0xfffb7800
+#define OMAP1_MMC2_BASE		0xfffb7c00	/* omap16xx only */
+
+#if IS_ENABLED(CONFIG_MMC_OMAP)
+void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
+				int nr_controllers);
+#else
+static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
+				int nr_controllers)
+{
+}
+#endif
diff --git a/arch/arm/mach-omap1/mtd-xip.h b/arch/arm/mach-omap1/mtd-xip.h
new file mode 100644
index 000000000..cbeda46dd
--- /dev/null
+++ b/arch/arm/mach-omap1/mtd-xip.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * MTD primitives for XIP support. Architecture specific functions.
+ *
+ * Do not include this file directly. It's included from linux/mtd/xip.h
+ *
+ * Author: Vladimir Barinov <vbarinov@embeddedalley.com>
+ *
+ * (c) 2005 MontaVista Software, Inc.
+ */
+
+#ifndef __ARCH_OMAP_MTD_XIP_H__
+#define __ARCH_OMAP_MTD_XIP_H__
+
+#include "hardware.h"
+#include <linux/soc/ti/omap1-io.h>
+#define OMAP_MPU_TIMER_BASE	(0xfffec500)
+#define OMAP_MPU_TIMER_OFFSET	0x100
+
+typedef struct {
+	u32 cntl;			/* CNTL_TIMER, R/W */
+	u32 load_tim;			/* LOAD_TIM,   W */
+	u32 read_tim;			/* READ_TIM,   R */
+} xip_omap_mpu_timer_regs_t;
+
+#define xip_omap_mpu_timer_base(n)					\
+((volatile xip_omap_mpu_timer_regs_t*)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE +	\
+	(n)*OMAP_MPU_TIMER_OFFSET))
+
+static inline unsigned long xip_omap_mpu_timer_read(int nr)
+{
+	volatile xip_omap_mpu_timer_regs_t* timer = xip_omap_mpu_timer_base(nr);
+	return timer->read_tim;
+}
+
+#define xip_irqpending()	\
+	(omap_readl(OMAP_IH1_ITR) & ~omap_readl(OMAP_IH1_MIR))
+#define xip_currtime()		(~xip_omap_mpu_timer_read(0))
+
+/*
+ * It's permitted to do approximation for xip_elapsed_since macro
+ * (see linux/mtd/xip.h)
+ */
+
+#define xip_elapsed_since(x)	(signed)((~xip_omap_mpu_timer_read(0) - (x)) / 6)
+
+/*
+ * xip_cpu_idle() is used when waiting for a delay equal or larger than
+ * the system timer tick period.  This should put the CPU into idle mode
+ * to save power and to be woken up only when some interrupts are pending.
+ * As above, this should not rely upon standard kernel code.
+ */
+
+#define xip_cpu_idle()  asm volatile ("mcr p15, 0, %0, c7, c0, 4" :: "r" (1))
+
+#endif /* __ARCH_OMAP_MTD_XIP_H__ */
diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c
new file mode 100644
index 000000000..4456fbc8a
--- /dev/null
+++ b/arch/arm/mach-omap1/mux.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * linux/arch/arm/mach-omap1/mux.c
+ *
+ * OMAP1 pin multiplexing configurations
+ *
+ * Copyright (C) 2003 - 2008 Nokia Corporation
+ *
+ * Written by Tony Lindgren
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include "hardware.h"
+#include "mux.h"
+
+#ifdef CONFIG_OMAP_MUX
+
+static struct omap_mux_cfg arch_mux_cfg;
+
+#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
+static struct pin_config omap1xxx_pins[] = {
+/*
+ *	 description		mux  mode   mux	 pull pull  pull  pu_pd	 pu  dbg
+ *				reg  offset mode reg  bit   ena	  reg
+ */
+MUX_CFG("UART1_TX",		 9,   21,    1,	  2,   3,   0,	 NA,	 0,  0)
+MUX_CFG("UART1_RTS",		 9,   12,    1,	  2,   0,   0,	 NA,	 0,  0)
+
+/* UART2 (COM_UART_GATING), conflicts with USB2 */
+MUX_CFG("UART2_TX",		 C,   27,    1,	  3,   3,   0,	 NA,	 0,  0)
+MUX_CFG("UART2_RX",		 C,   18,    0,	  3,   1,   1,	 NA,	 0,  0)
+MUX_CFG("UART2_CTS",		 C,   21,    0,	  3,   1,   1,	 NA,	 0,  0)
+MUX_CFG("UART2_RTS",		 C,   24,    1,	  3,   2,   0,	 NA,	 0,  0)
+
+/* UART3 (GIGA_UART_GATING) */
+MUX_CFG("UART3_TX",		 6,    0,    1,	  0,  30,   0,	 NA,	 0,  0)
+MUX_CFG("UART3_RX",		 6,    3,    0,	  0,  31,   1,	 NA,	 0,  0)
+MUX_CFG("UART3_CTS",		 5,   12,    2,	  0,  24,   0,	 NA,	 0,  0)
+MUX_CFG("UART3_RTS",		 5,   15,    2,	  0,  25,   0,	 NA,	 0,  0)
+MUX_CFG("UART3_CLKREQ",		 9,   27,    0,	  2,   5,   0,	 NA,	 0,  0)
+MUX_CFG("UART3_BCLK",		 A,    0,    0,	  2,   6,   0,	 NA,	 0,  0)
+MUX_CFG("Y15_1610_UART3_RTS",	 A,    0,    1,	  2,   6,   0,	 NA,	 0,  0)
+
+/* PWT & PWL, conflicts with UART3 */
+MUX_CFG("PWT",			 6,    0,    2,	  0,  30,   0,	 NA,	 0,  0)
+MUX_CFG("PWL",			 6,    3,    1,	  0,  31,   1,	 NA,	 0,  0)
+
+/* USB internal master generic */
+MUX_CFG("R18_USB_VBUS",		 7,    9,    2,	  1,  11,   0,	 NA,	 0,  1)
+MUX_CFG("R18_1510_USB_GPIO0",	 7,    9,    0,	  1,  11,   1,	 NA,	 0,  1)
+/* works around erratum:  W4_USB_PUEN and W4_USB_PUDIS are switched! */
+MUX_CFG("W4_USB_PUEN",		 D,    3,    3,	  3,   5,   1,	 NA,	 0,  1)
+MUX_CFG("W4_USB_CLKO",		 D,    3,    1,	  3,   5,   0,	 NA,	 0,  1)
+MUX_CFG("W4_USB_HIGHZ",		 D,    3,    4,	  3,   5,   0,	  3,	 0,  1)
+MUX_CFG("W4_GPIO58",		 D,    3,    7,	  3,   5,   0,	  3,	 0,  1)
+
+/* USB1 master */
+MUX_CFG("USB1_SUSP",		 8,   27,    2,	  1,  27,   0,	 NA,	 0,  1)
+MUX_CFG("USB1_SE0",		 9,    0,    2,	  1,  28,   0,	 NA,	 0,  1)
+MUX_CFG("W13_1610_USB1_SE0",	 9,    0,    4,	  1,  28,   0,	 NA,	 0,  1)
+MUX_CFG("USB1_TXEN",		 9,    3,    2,	  1,  29,   0,	 NA,	 0,  1)
+MUX_CFG("USB1_TXD",		 9,   24,    1,	  2,   4,   0,	 NA,	 0,  1)
+MUX_CFG("USB1_VP",		 A,    3,    1,	  2,   7,   0,	 NA,	 0,  1)
+MUX_CFG("USB1_VM",		 A,    6,    1,	  2,   8,   0,	 NA,	 0,  1)
+MUX_CFG("USB1_RCV",		 A,    9,    1,	  2,   9,   0,	 NA,	 0,  1)
+MUX_CFG("USB1_SPEED",		 A,   12,    2,	  2,  10,   0,	 NA,	 0,  1)
+MUX_CFG("R13_1610_USB1_SPEED",	 A,   12,    5,	  2,  10,   0,	 NA,	 0,  1)
+MUX_CFG("R13_1710_USB1_SEO",	 A,   12,    5,   2,  10,   0,   NA,     0,  1)
+
+/* USB2 master */
+MUX_CFG("USB2_SUSP",		 B,    3,    1,	  2,  17,   0,	 NA,	 0,  1)
+MUX_CFG("USB2_VP",		 B,    6,    1,	  2,  18,   0,	 NA,	 0,  1)
+MUX_CFG("USB2_TXEN",		 B,    9,    1,	  2,  19,   0,	 NA,	 0,  1)
+MUX_CFG("USB2_VM",		 C,   18,    1,	  3,   0,   0,	 NA,	 0,  1)
+MUX_CFG("USB2_RCV",		 C,   21,    1,	  3,   1,   0,	 NA,	 0,  1)
+MUX_CFG("USB2_SE0",		 C,   24,    2,	  3,   2,   0,	 NA,	 0,  1)
+MUX_CFG("USB2_TXD",		 C,   27,    2,	  3,   3,   0,	 NA,	 0,  1)
+
+/* OMAP-1510 GPIO */
+MUX_CFG("R18_1510_GPIO0",	 7,    9,    0,   1,  11,   1,    0,     0,  1)
+MUX_CFG("R19_1510_GPIO1",	 7,    6,    0,   1,  10,   1,    0,     0,  1)
+MUX_CFG("M14_1510_GPIO2",	 7,    3,    0,   1,   9,   1,    0,     0,  1)
+
+/* OMAP1610 GPIO */
+MUX_CFG("P18_1610_GPIO3",	 7,    0,    0,   1,   8,   0,   NA,     0,  1)
+MUX_CFG("Y15_1610_GPIO17",	 A,    0,    7,   2,   6,   0,   NA,     0,  1)
+
+/* OMAP-1710 GPIO */
+MUX_CFG("R18_1710_GPIO0",        7,    9,    0,   1,  11,   1,    1,     1,  1)
+MUX_CFG("V2_1710_GPIO10",        F,   27,    1,   4,   3,   1,    4,     1,  1)
+MUX_CFG("N21_1710_GPIO14",       6,    9,    0,   1,   1,   1,    1,     1,  1)
+MUX_CFG("W15_1710_GPIO40",       9,   27,    7,   2,   5,   1,    2,     1,  1)
+
+/* MPUIO */
+MUX_CFG("MPUIO2",		 7,   18,    0,	  1,  14,   1,	 NA,	 0,  1)
+MUX_CFG("N15_1610_MPUIO2",	 7,   18,    0,	  1,  14,   1,	  1,	 0,  1)
+MUX_CFG("MPUIO4",		 7,   15,    0,	  1,  13,   1,	 NA,	 0,  1)
+MUX_CFG("MPUIO5",		 7,   12,    0,	  1,  12,   1,	 NA,	 0,  1)
+
+MUX_CFG("T20_1610_MPUIO5",	 7,   12,    0,	  1,  12,   0,	  3,	 0,  1)
+MUX_CFG("W11_1610_MPUIO6",	10,   15,    2,	  3,   8,   0,	  3,	 0,  1)
+MUX_CFG("V10_1610_MPUIO7",	 A,   24,    2,	  2,  14,   0,	  2,	 0,  1)
+MUX_CFG("W11_1610_MPUIO9",	10,   15,    1,	  3,   8,   0,	  3,	 0,  1)
+MUX_CFG("V10_1610_MPUIO10",	 A,   24,    1,	  2,  14,   0,	  2,	 0,  1)
+MUX_CFG("W10_1610_MPUIO11",	 A,   18,    2,	  2,  11,   0,	  2,	 0,  1)
+MUX_CFG("E20_1610_MPUIO13",	 3,   21,    1,	  0,   7,   0,	  0,	 0,  1)
+MUX_CFG("U20_1610_MPUIO14",	 9,    6,    6,	  0,  30,   0,	  0,	 0,  1)
+MUX_CFG("E19_1610_MPUIO15",	 3,   18,    1,	  0,   6,   0,	  0,	 0,  1)
+
+/* MCBSP2 */
+MUX_CFG("MCBSP2_CLKR",		 C,    6,    0,	  2,  27,   1,	 NA,	 0,  1)
+MUX_CFG("MCBSP2_CLKX",		 C,    9,    0,	  2,  29,   1,	 NA,	 0,  1)
+MUX_CFG("MCBSP2_DR",		 C,    0,    0,	  2,  26,   1,	 NA,	 0,  1)
+MUX_CFG("MCBSP2_DX",		 C,   15,    0,	  2,  31,   1,	 NA,	 0,  1)
+MUX_CFG("MCBSP2_FSR",		 C,   12,    0,	  2,  30,   1,	 NA,	 0,  1)
+MUX_CFG("MCBSP2_FSX",		 C,    3,    0,	  2,  27,   1,	 NA,	 0,  1)
+
+/* MCBSP3 NOTE: Mode must 1 for clock */
+MUX_CFG("MCBSP3_CLKX",		 9,    3,    1,	  1,  29,   0,	 NA,	 0,  1)
+
+/* Misc ballouts */
+MUX_CFG("BALLOUT_V8_ARMIO3",	 B,   18,    0,	  2,  25,   1,	 NA,	 0,  1)
+MUX_CFG("N20_HDQ",		 6,   18,    1,   1,   4,   0,    1,     4,  0)
+
+/* OMAP-1610 MMC2 */
+MUX_CFG("W8_1610_MMC2_DAT0",	 B,   21,    6,	  2,  23,   1,	  2,	 1,  1)
+MUX_CFG("V8_1610_MMC2_DAT1",	 B,   27,    6,	  2,  25,   1,	  2,	 1,  1)
+MUX_CFG("W15_1610_MMC2_DAT2",	 9,   12,    6,	  2,   5,   1,	  2,	 1,  1)
+MUX_CFG("R10_1610_MMC2_DAT3",	 B,   18,    6,	  2,  22,   1,	  2,	 1,  1)
+MUX_CFG("Y10_1610_MMC2_CLK",	 B,    3,    6,	  2,  17,   0,	  2,	 0,  1)
+MUX_CFG("Y8_1610_MMC2_CMD",	 B,   24,    6,	  2,  24,   1,	  2,	 1,  1)
+MUX_CFG("V9_1610_MMC2_CMDDIR",	 B,   12,    6,	  2,  20,   0,	  2,	 1,  1)
+MUX_CFG("V5_1610_MMC2_DATDIR0",	 B,   15,    6,	  2,  21,   0,	  2,	 1,  1)
+MUX_CFG("W19_1610_MMC2_DATDIR1", 8,   15,    6,	  1,  23,   0,	  1,	 1,  1)
+MUX_CFG("R18_1610_MMC2_CLKIN",	 7,    9,    6,	  1,  11,   0,	  1,	11,  1)
+
+/* OMAP-1610 External Trace Interface */
+MUX_CFG("M19_1610_ETM_PSTAT0",	 5,   27,    1,	  0,  29,   0,	  0,	 0,  1)
+MUX_CFG("L15_1610_ETM_PSTAT1",	 5,   24,    1,	  0,  28,   0,	  0,	 0,  1)
+MUX_CFG("L18_1610_ETM_PSTAT2",	 5,   21,    1,	  0,  27,   0,	  0,	 0,  1)
+MUX_CFG("L19_1610_ETM_D0",	 5,   18,    1,	  0,  26,   0,	  0,	 0,  1)
+MUX_CFG("J19_1610_ETM_D6",	 5,    0,    1,	  0,  20,   0,	  0,	 0,  1)
+MUX_CFG("J18_1610_ETM_D7",	 5,   27,    1,	  0,  19,   0,	  0,	 0,  1)
+
+/* OMAP16XX GPIO */
+MUX_CFG("P20_1610_GPIO4",	 6,   27,    0,	  1,   7,   0,	  1,	 1,  1)
+MUX_CFG("V9_1610_GPIO7",	 B,   12,    1,	  2,  20,   0,	  2,	 1,  1)
+MUX_CFG("W8_1610_GPIO9",	 B,   21,    0,	  2,  23,   0,	  2,	 1,  1)
+MUX_CFG("N20_1610_GPIO11",       6,   18,    0,   1,   4,   0,    1,     1,  1)
+MUX_CFG("N19_1610_GPIO13",	 6,   12,    0,	  1,   2,   0,	  1,	 1,  1)
+MUX_CFG("P10_1610_GPIO22",	 C,    0,    7,	  2,  26,   0,	  2,	 1,  1)
+MUX_CFG("V5_1610_GPIO24",	 B,   15,    7,	  2,  21,   0,	  2,	 1,  1)
+MUX_CFG("AA20_1610_GPIO_41",	 9,    9,    7,	  1,  31,   0,	  1,	 1,  1)
+MUX_CFG("W19_1610_GPIO48",	 8,   15,    7,   1,  23,   1,    1,     0,  1)
+MUX_CFG("M7_1610_GPIO62",	10,    0,    0,   4,  24,   0,    4,     0,  1)
+MUX_CFG("V14_16XX_GPIO37",	 9,   18,    7,	  2,   2,   0,	  2,	 2,  0)
+MUX_CFG("R9_16XX_GPIO18",	 C,   18,    7,   3,   0,   0,    3,     0,  0)
+MUX_CFG("L14_16XX_GPIO49",	 6,    3,    7,   0,  31,   0,    0,    31,  0)
+
+/* OMAP-1610 uWire */
+MUX_CFG("V19_1610_UWIRE_SCLK",	 8,    6,    0,	  1,  20,   0,	  1,	 1,  1)
+MUX_CFG("U18_1610_UWIRE_SDI",	 8,    0,    0,	  1,  18,   0,	  1,	 1,  1)
+MUX_CFG("W21_1610_UWIRE_SDO",	 8,    3,    0,	  1,  19,   0,	  1,	 1,  1)
+MUX_CFG("N14_1610_UWIRE_CS0",	 8,    9,    1,	  1,  21,   0,	  1,	 1,  1)
+MUX_CFG("P15_1610_UWIRE_CS3",	 8,   12,    1,	  1,  22,   0,	  1,	 1,  1)
+MUX_CFG("N15_1610_UWIRE_CS1",	 7,   18,    2,	  1,  14,   0,	 NA,	 0,  1)
+
+/* OMAP-1610 SPI */
+MUX_CFG("U19_1610_SPIF_SCK",	 7,    21,   6,	  1,  15,   0,	  1,	 1,  1)
+MUX_CFG("U18_1610_SPIF_DIN",	 8,    0,    6,	  1,  18,   1,	  1,	 0,  1)
+MUX_CFG("P20_1610_SPIF_DIN",	 6,    27,   4,   1,   7,   1,    1,     0,  1)
+MUX_CFG("W21_1610_SPIF_DOUT",	 8,    3,    6,	  1,  19,   0,	  1,	 0,  1)
+MUX_CFG("R18_1610_SPIF_DOUT",	 7,    9,    3,	  1,  11,   0,	  1,	 0,  1)
+MUX_CFG("N14_1610_SPIF_CS0",	 8,    9,    6,	  1,  21,   0,	  1,	 1,  1)
+MUX_CFG("N15_1610_SPIF_CS1",	 7,    18,   6,	  1,  14,   0,	  1,	 1,  1)
+MUX_CFG("T19_1610_SPIF_CS2",	 7,    15,   4,	  1,  13,   0,	  1,	 1,  1)
+MUX_CFG("P15_1610_SPIF_CS3",	 8,    12,   3,	  1,  22,   0,	  1,	 1,  1)
+
+/* OMAP-1610 Flash */
+MUX_CFG("L3_1610_FLASH_CS2B_OE",10,    6,    1,	 NA,   0,   0,	 NA,	 0,  1)
+MUX_CFG("M8_1610_FLASH_CS2B_WE",10,    3,    1,	 NA,   0,   0,	 NA,	 0,  1)
+
+/* First MMC interface, same on 1510, 1610 and 1710 */
+MUX_CFG("MMC_CMD",		 A,   27,    0,	  2,  15,   1,	  2,	 1,  1)
+MUX_CFG("MMC_DAT1",		 A,   24,    0,	  2,  14,   1,	  2,	 1,  1)
+MUX_CFG("MMC_DAT2",		 A,   18,    0,	  2,  12,   1,	  2,	 1,  1)
+MUX_CFG("MMC_DAT0",		 B,    0,    0,	  2,  16,   1,	  2,	 1,  1)
+MUX_CFG("MMC_CLK",		 A,   21,    0,	 NA,   0,   0,	 NA,	 0,  1)
+MUX_CFG("MMC_DAT3",		10,   15,    0,	  3,   8,   1,	  3,	 1,  1)
+MUX_CFG("M15_1710_MMC_CLKI",	 6,   21,    2,   0,   0,   0,   NA,     0,  1)
+MUX_CFG("P19_1710_MMC_CMDDIR",	 6,   24,    6,   0,   0,   0,   NA,     0,  1)
+MUX_CFG("P20_1710_MMC_DATDIR0",	 6,   27,    5,   0,   0,   0,   NA,     0,  1)
+
+/* OMAP-1610 USB0 alternate configuration */
+MUX_CFG("W9_USB0_TXEN",		 B,   9,     5,	  2,  19,   0,	  2,	 0,  1)
+MUX_CFG("AA9_USB0_VP",		 B,   6,     5,	  2,  18,   0,	  2,	 0,  1)
+MUX_CFG("Y5_USB0_RCV",		 C,  21,     5,	  3,   1,   0,	  1,	 0,  1)
+MUX_CFG("R9_USB0_VM",		 C,  18,     5,	  3,   0,   0,	  3,	 0,  1)
+MUX_CFG("V6_USB0_TXD",		 C,  27,     5,	  3,   3,   0,	  3,	 0,  1)
+MUX_CFG("W5_USB0_SE0",		 C,  24,     5,	  3,   2,   0,	  3,	 0,  1)
+MUX_CFG("V9_USB0_SPEED",	 B,  12,     5,	  2,  20,   0,	  2,	 0,  1)
+MUX_CFG("Y10_USB0_SUSP",	 B,   3,     5,	  2,  17,   0,	  2,	 0,  1)
+
+/* USB2 interface */
+MUX_CFG("W9_USB2_TXEN",		 B,   9,     1,	 NA,   0,   0,	 NA,	 0,  1)
+MUX_CFG("AA9_USB2_VP",		 B,   6,     1,	 NA,   0,   0,	 NA,	 0,  1)
+MUX_CFG("Y5_USB2_RCV",		 C,  21,     1,	 NA,   0,   0,	 NA,	 0,  1)
+MUX_CFG("R9_USB2_VM",		 C,  18,     1,	 NA,   0,   0,	 NA,	 0,  1)
+MUX_CFG("V6_USB2_TXD",		 C,  27,     2,	 NA,   0,   0,	 NA,	 0,  1)
+MUX_CFG("W5_USB2_SE0",		 C,  24,     2,	 NA,   0,   0,	 NA,	 0,  1)
+
+/* 16XX UART */
+MUX_CFG("R13_1610_UART1_TX",	 A,  12,     6,	  2,  10,   0,	  2,	10,  1)
+MUX_CFG("V14_16XX_UART1_RX",	 9,  18,     0,	  2,   2,   0,	  2,	 2,  1)
+MUX_CFG("R14_1610_UART1_CTS",	 9,  15,     0,	  2,   1,   0,	  2,	 1,  1)
+MUX_CFG("AA15_1610_UART1_RTS",	 9,  12,     1,	  2,   0,   0,	  2,	 0,  1)
+MUX_CFG("R9_16XX_UART2_RX",	 C,  18,     0,   3,   0,   0,    3,     0,  1)
+MUX_CFG("L14_16XX_UART3_RX",	 6,   3,     0,   0,  31,   0,    0,    31,  1)
+
+/* I2C interface */
+MUX_CFG("I2C_SCL",		 7,  24,     0,	 NA,   0,   0,	 NA,	 0,  0)
+MUX_CFG("I2C_SDA",		 7,  27,     0,	 NA,   0,   0,	 NA,	 0,  0)
+
+/* Keypad */
+MUX_CFG("F18_1610_KBC0",	 3,  15,     0,	  0,   5,   1,	  0,	 0,  0)
+MUX_CFG("D20_1610_KBC1",	 3,  12,     0,	  0,   4,   1,	  0,	 0,  0)
+MUX_CFG("D19_1610_KBC2",	 3,   9,     0,	  0,   3,   1,	  0,	 0,  0)
+MUX_CFG("E18_1610_KBC3",	 3,   6,     0,	  0,   2,   1,	  0,	 0,  0)
+MUX_CFG("C21_1610_KBC4",	 3,   3,     0,	  0,   1,   1,	  0,	 0,  0)
+MUX_CFG("G18_1610_KBR0",	 4,   0,     0,	  0,   10,  1,	  0,	 1,  0)
+MUX_CFG("F19_1610_KBR1",	 3,   27,    0,	  0,   9,   1,	  0,	 1,  0)
+MUX_CFG("H14_1610_KBR2",	 3,   24,    0,	  0,   8,   1,	  0,	 1,  0)
+MUX_CFG("E20_1610_KBR3",	 3,   21,    0,	  0,   7,   1,	  0,	 1,  0)
+MUX_CFG("E19_1610_KBR4",	 3,   18,    0,	  0,   6,   1,	  0,	 1,  0)
+MUX_CFG("N19_1610_KBR5",	 6,  12,     1,	  1,   2,   1,	  1,	 1,  0)
+
+/* Power management */
+MUX_CFG("T20_1610_LOW_PWR",	 7,   12,    1,	  NA,   0,   0,   NA,	 0,  0)
+
+/* MCLK Settings */
+MUX_CFG("V5_1710_MCLK_ON",	 B,   15,    0,	  NA,   0,   0,   NA,	 0,  0)
+MUX_CFG("V5_1710_MCLK_OFF",	 B,   15,    6,	  NA,   0,   0,   NA,	 0,  0)
+MUX_CFG("R10_1610_MCLK_ON",	 B,   18,    0,	  NA,  22,   0,	  NA,	 1,  0)
+MUX_CFG("R10_1610_MCLK_OFF",	 B,   18,    6,	  2,   22,   1,	  2,	 1,  1)
+
+/* CompactFlash controller, conflicts with MMC1 */
+MUX_CFG("P11_1610_CF_CD2",	 A,   27,    3,	  2,   15,   1,	  2,	 1,  1)
+MUX_CFG("R11_1610_CF_IOIS16",	 B,    0,    3,	  2,   16,   1,	  2,	 1,  1)
+MUX_CFG("V10_1610_CF_IREQ",	 A,   24,    3,	  2,   14,   0,	  2,	 0,  1)
+MUX_CFG("W10_1610_CF_RESET",	 A,   18,    3,	  2,   12,   1,	  2,	 1,  1)
+MUX_CFG("W11_1610_CF_CD1",	10,   15,    3,	  3,    8,   1,	  3,	 1,  1)
+
+/* parallel camera */
+MUX_CFG("J15_1610_CAM_LCLK",	 4,   24,    0,   0,  18,   1,    0,     0,  0)
+MUX_CFG("J18_1610_CAM_D7",	 4,   27,    0,   0,  19,   1,    0,     0,  0)
+MUX_CFG("J19_1610_CAM_D6",	 5,    0,    0,   0,  20,   1,    0,     0,  0)
+MUX_CFG("J14_1610_CAM_D5",	 5,    3,    0,   0,  21,   1,    0,     0,  0)
+MUX_CFG("K18_1610_CAM_D4",	 5,    6,    0,   0,  22,   1,    0,     0,  0)
+MUX_CFG("K19_1610_CAM_D3",	 5,    9,    0,   0,  23,   1,    0,     0,  0)
+MUX_CFG("K15_1610_CAM_D2",	 5,   12,    0,   0,  24,   1,    0,     0,  0)
+MUX_CFG("K14_1610_CAM_D1",	 5,   15,    0,   0,  25,   1,    0,     0,  0)
+MUX_CFG("L19_1610_CAM_D0",	 5,   18,    0,   0,  26,   1,    0,     0,  0)
+MUX_CFG("L18_1610_CAM_VS",	 5,   21,    0,   0,  27,   1,    0,     0,  0)
+MUX_CFG("L15_1610_CAM_HS",	 5,   24,    0,   0,  28,   1,    0,     0,  0)
+MUX_CFG("M19_1610_CAM_RSTZ",	 5,   27,    0,   0,  29,   0,    0,     0,  0)
+MUX_CFG("Y15_1610_CAM_OUTCLK",	 A,    0,    6,   2,   6,   0,    2,     0,  0)
+
+/* serial camera */
+MUX_CFG("H19_1610_CAM_EXCLK",	 4,   21,    0,   0,  17,   0,    0,     0,  0)
+	/* REVISIT 5912 spec sez CCP_* can't pullup or pulldown ... ? */
+MUX_CFG("Y12_1610_CCP_CLKP",	 8,   18,    6,   1,  24,   1,    1,     0,  0)
+MUX_CFG("W13_1610_CCP_CLKM",	 9,    0,    6,   1,  28,   1,    1,     0,  0)
+MUX_CFG("W14_1610_CCP_DATAP",	 9,   24,    6,   2,   4,   1,    2,     0,  0)
+MUX_CFG("Y14_1610_CCP_DATAM",	 9,   21,    6,   2,   3,   1,    2,     0,  0)
+};
+#define OMAP1XXX_PINS_SZ	ARRAY_SIZE(omap1xxx_pins)
+#else
+#define omap1xxx_pins		NULL
+#define OMAP1XXX_PINS_SZ	0
+#endif	/* CONFIG_ARCH_OMAP15XX || CONFIG_ARCH_OMAP16XX */
+
+static int omap1_cfg_reg(const struct pin_config *cfg)
+{
+	static DEFINE_SPINLOCK(mux_spin_lock);
+	unsigned long flags;
+	unsigned int reg_orig = 0, reg = 0, pu_pd_orig = 0, pu_pd = 0,
+		pull_orig = 0, pull = 0;
+	unsigned int mask, warn = 0;
+
+	/* Check the mux register in question */
+	if (cfg->mux_reg) {
+		unsigned	tmp1, tmp2;
+
+		spin_lock_irqsave(&mux_spin_lock, flags);
+		reg_orig = omap_readl(cfg->mux_reg);
+
+		/* The mux registers always seem to be 3 bits long */
+		mask = (0x7 << cfg->mask_offset);
+		tmp1 = reg_orig & mask;
+		reg = reg_orig & ~mask;
+
+		tmp2 = (cfg->mask << cfg->mask_offset);
+		reg |= tmp2;
+
+		if (tmp1 != tmp2)
+			warn = 1;
+
+		omap_writel(reg, cfg->mux_reg);
+		spin_unlock_irqrestore(&mux_spin_lock, flags);
+	}
+
+	/* Check for pull up or pull down selection on 1610 */
+	if (!cpu_is_omap15xx()) {
+		if (cfg->pu_pd_reg && cfg->pull_val) {
+			spin_lock_irqsave(&mux_spin_lock, flags);
+			pu_pd_orig = omap_readl(cfg->pu_pd_reg);
+			mask = 1 << cfg->pull_bit;
+
+			if (cfg->pu_pd_val) {
+				if (!(pu_pd_orig & mask))
+					warn = 1;
+				/* Use pull up */
+				pu_pd = pu_pd_orig | mask;
+			} else {
+				if (pu_pd_orig & mask)
+					warn = 1;
+				/* Use pull down */
+				pu_pd = pu_pd_orig & ~mask;
+			}
+			omap_writel(pu_pd, cfg->pu_pd_reg);
+			spin_unlock_irqrestore(&mux_spin_lock, flags);
+		}
+	}
+
+	/* Check for an associated pull down register */
+	if (cfg->pull_reg) {
+		spin_lock_irqsave(&mux_spin_lock, flags);
+		pull_orig = omap_readl(cfg->pull_reg);
+		mask = 1 << cfg->pull_bit;
+
+		if (cfg->pull_val) {
+			if (pull_orig & mask)
+				warn = 1;
+			/* Low bit = pull enabled */
+			pull = pull_orig & ~mask;
+		} else {
+			if (!(pull_orig & mask))
+				warn = 1;
+			/* High bit = pull disabled */
+			pull = pull_orig | mask;
+		}
+
+		omap_writel(pull, cfg->pull_reg);
+		spin_unlock_irqrestore(&mux_spin_lock, flags);
+	}
+
+	if (warn) {
+#ifdef CONFIG_OMAP_MUX_WARNINGS
+		printk(KERN_WARNING "MUX: initialized %s\n", cfg->name);
+#endif
+	}
+
+#ifdef CONFIG_OMAP_MUX_DEBUG
+	if (cfg->debug || warn) {
+		printk("MUX: Setting register %s\n", cfg->name);
+		printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",
+		       cfg->mux_reg_name, cfg->mux_reg, reg_orig, reg);
+
+		if (!cpu_is_omap15xx()) {
+			if (cfg->pu_pd_reg && cfg->pull_val) {
+				printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",
+				       cfg->pu_pd_name, cfg->pu_pd_reg,
+				       pu_pd_orig, pu_pd);
+			}
+		}
+
+		if (cfg->pull_reg)
+			printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",
+			       cfg->pull_name, cfg->pull_reg, pull_orig, pull);
+	}
+#endif
+
+#ifdef CONFIG_OMAP_MUX_WARNINGS
+	return warn ? -ETXTBSY : 0;
+#else
+	return 0;
+#endif
+}
+
+static struct omap_mux_cfg *mux_cfg;
+
+int __init omap_mux_register(struct omap_mux_cfg *arch_mux_cfg)
+{
+	if (!arch_mux_cfg || !arch_mux_cfg->pins || arch_mux_cfg->size == 0
+			|| !arch_mux_cfg->cfg_reg) {
+		printk(KERN_ERR "Invalid pin table\n");
+		return -EINVAL;
+	}
+
+	mux_cfg = arch_mux_cfg;
+
+	return 0;
+}
+
+/*
+ * Sets the Omap MUX and PULL_DWN registers based on the table
+ */
+int omap_cfg_reg(const unsigned long index)
+{
+	struct pin_config *reg;
+
+	if (!cpu_class_is_omap1()) {
+		printk(KERN_ERR "mux: Broken omap_cfg_reg(%lu) entry\n",
+				index);
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	if (mux_cfg == NULL) {
+		printk(KERN_ERR "Pin mux table not initialized\n");
+		return -ENODEV;
+	}
+
+	if (index >= mux_cfg->size) {
+		printk(KERN_ERR "Invalid pin mux index: %lu (%lu)\n",
+		       index, mux_cfg->size);
+		dump_stack();
+		return -ENODEV;
+	}
+
+	reg = &mux_cfg->pins[index];
+
+	if (!mux_cfg->cfg_reg)
+		return -ENODEV;
+
+	return mux_cfg->cfg_reg(reg);
+}
+EXPORT_SYMBOL(omap_cfg_reg);
+
+int __init omap1_mux_init(void)
+{
+	if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
+		arch_mux_cfg.pins	= omap1xxx_pins;
+		arch_mux_cfg.size	= OMAP1XXX_PINS_SZ;
+		arch_mux_cfg.cfg_reg	= omap1_cfg_reg;
+	}
+
+	return omap_mux_register(&arch_mux_cfg);
+}
+
+#else
+#define omap_mux_init() do {} while(0)
+#define omap_cfg_reg(x)	do {} while(0)
+#endif	/* CONFIG_OMAP_MUX */
+
diff --git a/arch/arm/mach-omap1/mux.h b/arch/arm/mach-omap1/mux.h
new file mode 100644
index 000000000..3e7ed3348
--- /dev/null
+++ b/arch/arm/mach-omap1/mux.h
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Table of the Omap register configurations for the FUNC_MUX and
+ * PULL_DWN combinations.
+ *
+ * Copyright (C) 2004 - 2008 Texas Instruments Inc.
+ * Copyright (C) 2003 - 2008 Nokia Corporation
+ *
+ * Written by Tony Lindgren
+ *
+ * NOTE: Please use the following naming style for new pin entries.
+ *	 For example, W8_1610_MMC2_DAT0, where:
+ *	 - W8	     = ball
+ *	 - 1610	     = 1510 or 1610, none if common for both 1510 and 1610
+ *	 - MMC2_DAT0 = function
+ */
+
+#ifndef __ASM_ARCH_MUX_H
+#define __ASM_ARCH_MUX_H
+
+#include <linux/soc/ti/omap1-mux.h>
+
+#define PU_PD_SEL_NA		0	/* No pu_pd reg available */
+#define PULL_DWN_CTRL_NA	0	/* No pull-down control needed */
+
+#ifdef	CONFIG_OMAP_MUX_DEBUG
+#define MUX_REG(reg, mode_offset, mode) .mux_reg_name = "FUNC_MUX_CTRL_"#reg, \
+					.mux_reg = FUNC_MUX_CTRL_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG(reg, bit, status)	.pull_name = "PULL_DWN_CTRL_"#reg, \
+					.pull_reg = PULL_DWN_CTRL_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#define PU_PD_REG(reg, status)		.pu_pd_name = "PU_PD_SEL_"#reg, \
+					.pu_pd_reg = PU_PD_SEL_##reg, \
+					.pu_pd_val = status,
+
+#define MUX_REG_7XX(reg, mode_offset, mode) .mux_reg_name = "OMAP7XX_IO_CONF_"#reg, \
+					.mux_reg = OMAP7XX_IO_CONF_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG_7XX(reg, bit, status)	.pull_name = "OMAP7XX_IO_CONF_"#reg, \
+					.pull_reg = OMAP7XX_IO_CONF_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#else
+
+#define MUX_REG(reg, mode_offset, mode) .mux_reg = FUNC_MUX_CTRL_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG(reg, bit, status)	.pull_reg = PULL_DWN_CTRL_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#define PU_PD_REG(reg, status)		.pu_pd_reg = PU_PD_SEL_##reg, \
+					.pu_pd_val = status,
+
+#define MUX_REG_7XX(reg, mode_offset, mode) \
+					.mux_reg = OMAP7XX_IO_CONF_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG_7XX(reg, bit, status)	.pull_reg = OMAP7XX_IO_CONF_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#endif /* CONFIG_OMAP_MUX_DEBUG */
+
+#define MUX_CFG(desc, mux_reg, mode_offset, mode,	\
+		pull_reg, pull_bit, pull_status,	\
+		pu_pd_reg, pu_pd_status, debug_status)	\
+{							\
+	.name =	 desc,					\
+	.debug = debug_status,				\
+	MUX_REG(mux_reg, mode_offset, mode)		\
+	PULL_REG(pull_reg, pull_bit, pull_status)	\
+	PU_PD_REG(pu_pd_reg, pu_pd_status)		\
+},
+
+
+/*
+ * OMAP730/850 has a slightly different config for the pin mux.
+ * - config regs are the OMAP7XX_IO_CONF_x regs (see omap7xx.h) regs and
+ *   not the FUNC_MUX_CTRL_x regs from hardware.h
+ * - for pull-up/down, only has one enable bit which is in the same register
+ *   as mux config
+ */
+#define MUX_CFG_7XX(desc, mux_reg, mode_offset, mode,	\
+		   pull_bit, pull_status, debug_status)\
+{							\
+	.name =	 desc,					\
+	.debug = debug_status,				\
+	MUX_REG_7XX(mux_reg, mode_offset, mode)		\
+	PULL_REG_7XX(mux_reg, pull_bit, pull_status)	\
+	PU_PD_REG(NA, 0)		\
+},
+
+struct pin_config {
+	char 			*name;
+	const unsigned int 	mux_reg;
+	unsigned char		debug;
+
+	const unsigned char mask_offset;
+	const unsigned char mask;
+
+	const char *pull_name;
+	const unsigned int pull_reg;
+	const unsigned char pull_val;
+	const unsigned char pull_bit;
+
+	const char *pu_pd_name;
+	const unsigned int pu_pd_reg;
+	const unsigned char pu_pd_val;
+
+#if	defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
+	const char *mux_reg_name;
+#endif
+
+};
+
+struct omap_mux_cfg {
+	struct pin_config	*pins;
+	unsigned long		size;
+	int			(*cfg_reg)(const struct pin_config *cfg);
+};
+
+#ifdef	CONFIG_OMAP_MUX
+/* setup pin muxing in Linux */
+extern int omap1_mux_init(void);
+extern int omap_mux_register(struct omap_mux_cfg *);
+#else
+/* boot loader does it all (no warnings from CONFIG_OMAP_MUX_WARNINGS) */
+static inline int omap1_mux_init(void) { return 0; }
+#endif
+
+extern int omap2_mux_init(void);
+
+#endif
diff --git a/arch/arm/mach-omap1/ocpi.c b/arch/arm/mach-omap1/ocpi.c
new file mode 100644
index 000000000..d48f72657
--- /dev/null
+++ b/arch/arm/mach-omap1/ocpi.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * linux/arch/arm/plat-omap/ocpi.c
+ *
+ * Minimal OCP bus support for omap16xx
+ *
+ * Copyright (C) 2003 - 2005 Nokia Corporation
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * Written by Tony Lindgren <tony@atomide.com>
+ *
+ * Modified for clock framework by Paul Mundt <paul.mundt@nokia.com>.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include "hardware.h"
+#include "common.h"
+
+#define OCPI_BASE		0xfffec320
+#define OCPI_FAULT		(OCPI_BASE + 0x00)
+#define OCPI_CMD_FAULT		(OCPI_BASE + 0x04)
+#define OCPI_SINT0		(OCPI_BASE + 0x08)
+#define OCPI_TABORT		(OCPI_BASE + 0x0c)
+#define OCPI_SINT1		(OCPI_BASE + 0x10)
+#define OCPI_PROT		(OCPI_BASE + 0x14)
+#define OCPI_SEC		(OCPI_BASE + 0x18)
+
+/* USB OHCI OCPI access error registers */
+#define HOSTUEADDR	0xfffba0e0
+#define HOSTUESTATUS	0xfffba0e4
+
+static struct clk *ocpi_ck;
+
+/*
+ * Enables device access to OMAP buses via the OCPI bridge
+ */
+int ocpi_enable(void)
+{
+	unsigned int val;
+
+	if (!cpu_is_omap16xx())
+		return -ENODEV;
+
+	/* Enable access for OHCI in OCPI */
+	val = omap_readl(OCPI_PROT);
+	val &= ~0xff;
+	/* val &= (1 << 0);	 Allow access only to EMIFS */
+	omap_writel(val, OCPI_PROT);
+
+	val = omap_readl(OCPI_SEC);
+	val &= ~0xff;
+	omap_writel(val, OCPI_SEC);
+
+	return 0;
+}
+EXPORT_SYMBOL(ocpi_enable);
+
+static int __init omap_ocpi_init(void)
+{
+	if (!cpu_is_omap16xx())
+		return -ENODEV;
+
+	ocpi_ck = clk_get(NULL, "l3_ocpi_ck");
+	if (IS_ERR(ocpi_ck))
+		return PTR_ERR(ocpi_ck);
+
+	clk_prepare_enable(ocpi_ck);
+	ocpi_enable();
+	pr_info("OMAP OCPI interconnect driver loaded\n");
+
+	return 0;
+}
+
+static void __exit omap_ocpi_exit(void)
+{
+	/* REVISIT: Disable OCPI */
+
+	if (!cpu_is_omap16xx())
+		return;
+
+	clk_disable_unprepare(ocpi_ck);
+	clk_put(ocpi_ck);
+}
+
+MODULE_AUTHOR("Tony Lindgren <tony@atomide.com>");
+MODULE_DESCRIPTION("OMAP OCPI bus controller module");
+MODULE_LICENSE("GPL");
+module_init(omap_ocpi_init);
+module_exit(omap_ocpi_exit);
diff --git a/arch/arm/mach-omap1/omap-dma.c b/arch/arm/mach-omap1/omap-dma.c
new file mode 100644
index 000000000..aebe5e55f
--- /dev/null
+++ b/arch/arm/mach-omap1/omap-dma.c
@@ -0,0 +1,869 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/plat-omap/dma.c
+ *
+ * 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.
+ * Merged to support both OMAP1 and OMAP2 by Tony Lindgren <tony@atomide.com>
+ * 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>
+ *
+ * Support functions for the OMAP internal DMA channels.
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/
+ * Converted DMA library into DMA platform driver.
+ *	- G, Manjunath Kondaiah <manjugk@ti.com>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+#include <linux/omap-dma.h>
+
+#include <linux/soc/ti/omap1-io.h>
+#include <linux/soc/ti/omap1-soc.h>
+
+#include "tc.h"
+
+/*
+ * MAX_LOGICAL_DMA_CH_COUNT: the maximum number of logical DMA
+ * channels that an instance of the SDMA IP block can support.  Used
+ * to size arrays.  (The actual maximum on a particular SoC may be less
+ * than this -- for example, OMAP1 SDMA instances only support 17 logical
+ * DMA channels.)
+ */
+#define MAX_LOGICAL_DMA_CH_COUNT		32
+
+#undef DEBUG
+
+#define OMAP_DMA_ACTIVE			0x01
+
+#define OMAP_FUNC_MUX_ARM_BASE		(0xfffe1000 + 0xec)
+
+static struct omap_system_dma_plat_info *p;
+static struct omap_dma_dev_attr *d;
+static int enable_1510_mode;
+static u32 errata;
+
+static int dma_lch_count;
+static int dma_chan_count;
+static int omap_dma_reserve_channels;
+
+static DEFINE_SPINLOCK(dma_chan_lock);
+static struct omap_dma_lch *dma_chan;
+
+static inline void omap_disable_channel_irq(int lch)
+{
+	/* disable channel interrupts */
+	p->dma_write(0, CICR, lch);
+	/* Clear CSR */
+	p->dma_read(CSR, lch);
+}
+
+static inline void set_gdma_dev(int req, int dev)
+{
+	u32 reg = OMAP_FUNC_MUX_ARM_BASE + ((req - 1) / 5) * 4;
+	int shift = ((req - 1) % 5) * 6;
+	u32 l;
+
+	l = omap_readl(reg);
+	l &= ~(0x3f << shift);
+	l |= (dev - 1) << shift;
+	omap_writel(l, reg);
+}
+
+#if IS_ENABLED(CONFIG_FB_OMAP)
+void omap_set_dma_priority(int lch, int dst_port, int priority)
+{
+	unsigned long reg;
+	u32 l;
+
+	if (dma_omap1()) {
+		switch (dst_port) {
+		case OMAP_DMA_PORT_OCP_T1:	/* FFFECC00 */
+			reg = OMAP_TC_OCPT1_PRIOR;
+			break;
+		case OMAP_DMA_PORT_OCP_T2:	/* FFFECCD0 */
+			reg = OMAP_TC_OCPT2_PRIOR;
+			break;
+		case OMAP_DMA_PORT_EMIFF:	/* FFFECC08 */
+			reg = OMAP_TC_EMIFF_PRIOR;
+			break;
+		case OMAP_DMA_PORT_EMIFS:	/* FFFECC04 */
+			reg = OMAP_TC_EMIFS_PRIOR;
+			break;
+		default:
+			BUG();
+			return;
+		}
+		l = omap_readl(reg);
+		l &= ~(0xf << 8);
+		l |= (priority & 0xf) << 8;
+		omap_writel(l, reg);
+	}
+}
+EXPORT_SYMBOL(omap_set_dma_priority);
+#endif
+
+#if IS_ENABLED(CONFIG_USB_OMAP)
+#ifdef CONFIG_ARCH_OMAP15XX
+/* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */
+static int omap_dma_in_1510_mode(void)
+{
+	return enable_1510_mode;
+}
+#else
+#define omap_dma_in_1510_mode()		0
+#endif
+
+void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
+				  int frame_count, int sync_mode,
+				  int dma_trigger, int src_or_dst_synch)
+{
+	u32 l;
+	u16 ccr;
+
+	l = p->dma_read(CSDP, lch);
+	l &= ~0x03;
+	l |= data_type;
+	p->dma_write(l, CSDP, lch);
+
+	ccr = p->dma_read(CCR, lch);
+	ccr &= ~(1 << 5);
+	if (sync_mode == OMAP_DMA_SYNC_FRAME)
+		ccr |= 1 << 5;
+	p->dma_write(ccr, CCR, lch);
+
+	ccr = p->dma_read(CCR2, lch);
+	ccr &= ~(1 << 2);
+	if (sync_mode == OMAP_DMA_SYNC_BLOCK)
+		ccr |= 1 << 2;
+	p->dma_write(ccr, CCR2, lch);
+	p->dma_write(elem_count, CEN, lch);
+	p->dma_write(frame_count, CFN, lch);
+}
+EXPORT_SYMBOL(omap_set_dma_transfer_params);
+
+void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode)
+{
+	if (!dma_omap15xx()) {
+		u32 l;
+
+		l = p->dma_read(LCH_CTRL, lch);
+		l &= ~0x7;
+		l |= mode;
+		p->dma_write(l, LCH_CTRL, lch);
+	}
+}
+EXPORT_SYMBOL(omap_set_dma_channel_mode);
+
+/* Note that src_port is only for omap1 */
+void omap_set_dma_src_params(int lch, int src_port, int src_amode,
+			     unsigned long src_start,
+			     int src_ei, int src_fi)
+{
+	u32 l;
+	u16 w;
+
+	w = p->dma_read(CSDP, lch);
+	w &= ~(0x1f << 2);
+	w |= src_port << 2;
+	p->dma_write(w, CSDP, lch);
+
+	l = p->dma_read(CCR, lch);
+	l &= ~(0x03 << 12);
+	l |= src_amode << 12;
+	p->dma_write(l, CCR, lch);
+
+	p->dma_write(src_start, CSSA, lch);
+
+	p->dma_write(src_ei, CSEI, lch);
+	p->dma_write(src_fi, CSFI, lch);
+}
+EXPORT_SYMBOL(omap_set_dma_src_params);
+
+void omap_set_dma_src_data_pack(int lch, int enable)
+{
+	u32 l;
+
+	l = p->dma_read(CSDP, lch);
+	l &= ~(1 << 6);
+	if (enable)
+		l |= (1 << 6);
+	p->dma_write(l, CSDP, lch);
+}
+EXPORT_SYMBOL(omap_set_dma_src_data_pack);
+
+void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
+{
+	unsigned int burst = 0;
+	u32 l;
+
+	l = p->dma_read(CSDP, lch);
+	l &= ~(0x03 << 7);
+
+	switch (burst_mode) {
+	case OMAP_DMA_DATA_BURST_DIS:
+		break;
+	case OMAP_DMA_DATA_BURST_4:
+		burst = 0x2;
+		break;
+	case OMAP_DMA_DATA_BURST_8:
+		/*
+		 * not supported by current hardware on OMAP1
+		 * w |= (0x03 << 7);
+		 */
+		fallthrough;
+	case OMAP_DMA_DATA_BURST_16:
+		/* OMAP1 don't support burst 16 */
+		fallthrough;
+	default:
+		BUG();
+	}
+
+	l |= (burst << 7);
+	p->dma_write(l, CSDP, lch);
+}
+EXPORT_SYMBOL(omap_set_dma_src_burst_mode);
+
+/* Note that dest_port is only for OMAP1 */
+void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
+			      unsigned long dest_start,
+			      int dst_ei, int dst_fi)
+{
+	u32 l;
+
+	l = p->dma_read(CSDP, lch);
+	l &= ~(0x1f << 9);
+	l |= dest_port << 9;
+	p->dma_write(l, CSDP, lch);
+
+	l = p->dma_read(CCR, lch);
+	l &= ~(0x03 << 14);
+	l |= dest_amode << 14;
+	p->dma_write(l, CCR, lch);
+
+	p->dma_write(dest_start, CDSA, lch);
+
+	p->dma_write(dst_ei, CDEI, lch);
+	p->dma_write(dst_fi, CDFI, lch);
+}
+EXPORT_SYMBOL(omap_set_dma_dest_params);
+
+void omap_set_dma_dest_data_pack(int lch, int enable)
+{
+	u32 l;
+
+	l = p->dma_read(CSDP, lch);
+	l &= ~(1 << 13);
+	if (enable)
+		l |= 1 << 13;
+	p->dma_write(l, CSDP, lch);
+}
+EXPORT_SYMBOL(omap_set_dma_dest_data_pack);
+
+void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
+{
+	unsigned int burst = 0;
+	u32 l;
+
+	l = p->dma_read(CSDP, lch);
+	l &= ~(0x03 << 14);
+
+	switch (burst_mode) {
+	case OMAP_DMA_DATA_BURST_DIS:
+		break;
+	case OMAP_DMA_DATA_BURST_4:
+		burst = 0x2;
+		break;
+	case OMAP_DMA_DATA_BURST_8:
+		burst = 0x3;
+		break;
+	case OMAP_DMA_DATA_BURST_16:
+		/* OMAP1 don't support burst 16 */
+		fallthrough;
+	default:
+		printk(KERN_ERR "Invalid DMA burst mode\n");
+		BUG();
+		return;
+	}
+	l |= (burst << 14);
+	p->dma_write(l, CSDP, lch);
+}
+EXPORT_SYMBOL(omap_set_dma_dest_burst_mode);
+
+static inline void omap_enable_channel_irq(int lch)
+{
+	/* Clear CSR */
+	p->dma_read(CSR, lch);
+
+	/* Enable some nice interrupts. */
+	p->dma_write(dma_chan[lch].enabled_irqs, CICR, lch);
+}
+
+void omap_disable_dma_irq(int lch, u16 bits)
+{
+	dma_chan[lch].enabled_irqs &= ~bits;
+}
+EXPORT_SYMBOL(omap_disable_dma_irq);
+
+static inline void enable_lnk(int lch)
+{
+	u32 l;
+
+	l = p->dma_read(CLNK_CTRL, lch);
+
+	l &= ~(1 << 14);
+
+	/* Set the ENABLE_LNK bits */
+	if (dma_chan[lch].next_lch != -1)
+		l = dma_chan[lch].next_lch | (1 << 15);
+
+	p->dma_write(l, CLNK_CTRL, lch);
+}
+
+static inline void disable_lnk(int lch)
+{
+	u32 l;
+
+	l = p->dma_read(CLNK_CTRL, lch);
+
+	/* Disable interrupts */
+	omap_disable_channel_irq(lch);
+
+	/* Set the STOP_LNK bit */
+	l |= 1 << 14;
+
+	p->dma_write(l, CLNK_CTRL, lch);
+	dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;
+}
+#endif
+
+int omap_request_dma(int dev_id, const char *dev_name,
+		     void (*callback)(int lch, u16 ch_status, void *data),
+		     void *data, int *dma_ch_out)
+{
+	int ch, free_ch = -1;
+	unsigned long flags;
+	struct omap_dma_lch *chan;
+
+	WARN(strcmp(dev_name, "DMA engine"), "Using deprecated platform DMA API - please update to DMA engine");
+
+	spin_lock_irqsave(&dma_chan_lock, flags);
+	for (ch = 0; ch < dma_chan_count; ch++) {
+		if (free_ch == -1 && dma_chan[ch].dev_id == -1) {
+			free_ch = ch;
+			/* Exit after first free channel found */
+			break;
+		}
+	}
+	if (free_ch == -1) {
+		spin_unlock_irqrestore(&dma_chan_lock, flags);
+		return -EBUSY;
+	}
+	chan = dma_chan + free_ch;
+	chan->dev_id = dev_id;
+
+	if (p->clear_lch_regs)
+		p->clear_lch_regs(free_ch);
+
+	spin_unlock_irqrestore(&dma_chan_lock, flags);
+
+	chan->dev_name = dev_name;
+	chan->callback = callback;
+	chan->data = data;
+	chan->flags = 0;
+
+	chan->enabled_irqs = OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ;
+
+	chan->enabled_irqs |= OMAP1_DMA_TOUT_IRQ;
+
+	if (dma_omap16xx()) {
+		/* If the sync device is set, configure it dynamically. */
+		if (dev_id != 0) {
+			set_gdma_dev(free_ch + 1, dev_id);
+			dev_id = free_ch + 1;
+		}
+		/*
+		 * Disable the 1510 compatibility mode and set the sync device
+		 * id.
+		 */
+		p->dma_write(dev_id | (1 << 10), CCR, free_ch);
+	} else {
+		p->dma_write(dev_id, CCR, free_ch);
+	}
+
+	*dma_ch_out = free_ch;
+
+	return 0;
+}
+EXPORT_SYMBOL(omap_request_dma);
+
+void omap_free_dma(int lch)
+{
+	unsigned long flags;
+
+	if (dma_chan[lch].dev_id == -1) {
+		pr_err("omap_dma: trying to free unallocated DMA channel %d\n",
+		       lch);
+		return;
+	}
+
+	/* Disable all DMA interrupts for the channel. */
+	omap_disable_channel_irq(lch);
+
+	/* Make sure the DMA transfer is stopped. */
+	p->dma_write(0, CCR, lch);
+
+	spin_lock_irqsave(&dma_chan_lock, flags);
+	dma_chan[lch].dev_id = -1;
+	dma_chan[lch].next_lch = -1;
+	dma_chan[lch].callback = NULL;
+	spin_unlock_irqrestore(&dma_chan_lock, flags);
+}
+EXPORT_SYMBOL(omap_free_dma);
+
+/*
+ * Clears any DMA state so the DMA engine is ready to restart with new buffers
+ * through omap_start_dma(). Any buffers in flight are discarded.
+ */
+static void omap_clear_dma(int lch)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	p->clear_dma(lch);
+	local_irq_restore(flags);
+}
+
+#if IS_ENABLED(CONFIG_USB_OMAP)
+void omap_start_dma(int lch)
+{
+	u32 l;
+
+	/*
+	 * The CPC/CDAC register needs to be initialized to zero
+	 * before starting dma transfer.
+	 */
+	if (dma_omap15xx())
+		p->dma_write(0, CPC, lch);
+	else
+		p->dma_write(0, CDAC, lch);
+
+	if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
+		int next_lch, cur_lch;
+		char dma_chan_link_map[MAX_LOGICAL_DMA_CH_COUNT];
+
+		/* Set the link register of the first channel */
+		enable_lnk(lch);
+
+		memset(dma_chan_link_map, 0, sizeof(dma_chan_link_map));
+		dma_chan_link_map[lch] = 1;
+
+		cur_lch = dma_chan[lch].next_lch;
+		do {
+			next_lch = dma_chan[cur_lch].next_lch;
+
+			/* The loop case: we've been here already */
+			if (dma_chan_link_map[cur_lch])
+				break;
+			/* Mark the current channel */
+			dma_chan_link_map[cur_lch] = 1;
+
+			enable_lnk(cur_lch);
+			omap_enable_channel_irq(cur_lch);
+
+			cur_lch = next_lch;
+		} while (next_lch != -1);
+	} else if (IS_DMA_ERRATA(DMA_ERRATA_PARALLEL_CHANNELS))
+		p->dma_write(lch, CLNK_CTRL, lch);
+
+	omap_enable_channel_irq(lch);
+
+	l = p->dma_read(CCR, lch);
+
+	if (IS_DMA_ERRATA(DMA_ERRATA_IFRAME_BUFFERING))
+			l |= OMAP_DMA_CCR_BUFFERING_DISABLE;
+	l |= OMAP_DMA_CCR_EN;
+
+	/*
+	 * As dma_write() uses IO accessors which are weakly ordered, there
+	 * is no guarantee that data in coherent DMA memory will be visible
+	 * to the DMA device.  Add a memory barrier here to ensure that any
+	 * such data is visible prior to enabling DMA.
+	 */
+	mb();
+	p->dma_write(l, CCR, lch);
+
+	dma_chan[lch].flags |= OMAP_DMA_ACTIVE;
+}
+EXPORT_SYMBOL(omap_start_dma);
+
+void omap_stop_dma(int lch)
+{
+	u32 l;
+
+	/* Disable all interrupts on the channel */
+	omap_disable_channel_irq(lch);
+
+	l = p->dma_read(CCR, lch);
+	if (IS_DMA_ERRATA(DMA_ERRATA_i541) &&
+			(l & OMAP_DMA_CCR_SEL_SRC_DST_SYNC)) {
+		int i = 0;
+		u32 sys_cf;
+
+		/* Configure No-Standby */
+		l = p->dma_read(OCP_SYSCONFIG, lch);
+		sys_cf = l;
+		l &= ~DMA_SYSCONFIG_MIDLEMODE_MASK;
+		l |= DMA_SYSCONFIG_MIDLEMODE(DMA_IDLEMODE_NO_IDLE);
+		p->dma_write(l , OCP_SYSCONFIG, 0);
+
+		l = p->dma_read(CCR, lch);
+		l &= ~OMAP_DMA_CCR_EN;
+		p->dma_write(l, CCR, lch);
+
+		/* Wait for sDMA FIFO drain */
+		l = p->dma_read(CCR, lch);
+		while (i < 100 && (l & (OMAP_DMA_CCR_RD_ACTIVE |
+					OMAP_DMA_CCR_WR_ACTIVE))) {
+			udelay(5);
+			i++;
+			l = p->dma_read(CCR, lch);
+		}
+		if (i >= 100)
+			pr_err("DMA drain did not complete on lch %d\n", lch);
+		/* Restore OCP_SYSCONFIG */
+		p->dma_write(sys_cf, OCP_SYSCONFIG, lch);
+	} else {
+		l &= ~OMAP_DMA_CCR_EN;
+		p->dma_write(l, CCR, lch);
+	}
+
+	/*
+	 * Ensure that data transferred by DMA is visible to any access
+	 * after DMA has been disabled.  This is important for coherent
+	 * DMA regions.
+	 */
+	mb();
+
+	if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
+		int next_lch, cur_lch = lch;
+		char dma_chan_link_map[MAX_LOGICAL_DMA_CH_COUNT];
+
+		memset(dma_chan_link_map, 0, sizeof(dma_chan_link_map));
+		do {
+			/* The loop case: we've been here already */
+			if (dma_chan_link_map[cur_lch])
+				break;
+			/* Mark the current channel */
+			dma_chan_link_map[cur_lch] = 1;
+
+			disable_lnk(cur_lch);
+
+			next_lch = dma_chan[cur_lch].next_lch;
+			cur_lch = next_lch;
+		} while (next_lch != -1);
+	}
+
+	dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;
+}
+EXPORT_SYMBOL(omap_stop_dma);
+
+/*
+ * Allows changing the DMA callback function or data. This may be needed if
+ * the driver shares a single DMA channel for multiple dma triggers.
+ */
+/*
+ * Returns current physical source address for the given DMA channel.
+ * If the channel is running the caller must disable interrupts prior calling
+ * this function and process the returned value before re-enabling interrupt to
+ * prevent races with the interrupt handler. Note that in continuous mode there
+ * is a chance for CSSA_L register overflow between the two reads resulting
+ * in incorrect return value.
+ */
+dma_addr_t omap_get_dma_src_pos(int lch)
+{
+	dma_addr_t offset = 0;
+
+	if (dma_omap15xx())
+		offset = p->dma_read(CPC, lch);
+	else
+		offset = p->dma_read(CSAC, lch);
+
+	if (IS_DMA_ERRATA(DMA_ERRATA_3_3) && offset == 0)
+		offset = p->dma_read(CSAC, lch);
+
+	if (!dma_omap15xx()) {
+		/*
+		 * CDAC == 0 indicates that the DMA transfer on the channel has
+		 * not been started (no data has been transferred so far).
+		 * Return the programmed source start address in this case.
+		 */
+		if (likely(p->dma_read(CDAC, lch)))
+			offset = p->dma_read(CSAC, lch);
+		else
+			offset = p->dma_read(CSSA, lch);
+	}
+
+	offset |= (p->dma_read(CSSA, lch) & 0xFFFF0000);
+
+	return offset;
+}
+EXPORT_SYMBOL(omap_get_dma_src_pos);
+
+/*
+ * Returns current physical destination address for the given DMA channel.
+ * If the channel is running the caller must disable interrupts prior calling
+ * this function and process the returned value before re-enabling interrupt to
+ * prevent races with the interrupt handler. Note that in continuous mode there
+ * is a chance for CDSA_L register overflow between the two reads resulting
+ * in incorrect return value.
+ */
+dma_addr_t omap_get_dma_dst_pos(int lch)
+{
+	dma_addr_t offset = 0;
+
+	if (dma_omap15xx())
+		offset = p->dma_read(CPC, lch);
+	else
+		offset = p->dma_read(CDAC, lch);
+
+	/*
+	 * omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is
+	 * read before the DMA controller finished disabling the channel.
+	 */
+	if (!dma_omap15xx() && offset == 0) {
+		offset = p->dma_read(CDAC, lch);
+		/*
+		 * CDAC == 0 indicates that the DMA transfer on the channel has
+		 * not been started (no data has been transferred so far).
+		 * Return the programmed destination start address in this case.
+		 */
+		if (unlikely(!offset))
+			offset = p->dma_read(CDSA, lch);
+	}
+
+	offset |= (p->dma_read(CDSA, lch) & 0xFFFF0000);
+
+	return offset;
+}
+EXPORT_SYMBOL(omap_get_dma_dst_pos);
+
+int omap_get_dma_active_status(int lch)
+{
+	return (p->dma_read(CCR, lch) & OMAP_DMA_CCR_EN) != 0;
+}
+EXPORT_SYMBOL(omap_get_dma_active_status);
+#endif
+
+int omap_dma_running(void)
+{
+	int lch;
+
+	if (omap_lcd_dma_running())
+		return 1;
+
+	for (lch = 0; lch < dma_chan_count; lch++)
+		if (p->dma_read(CCR, lch) & OMAP_DMA_CCR_EN)
+			return 1;
+
+	return 0;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static int omap1_dma_handle_ch(int ch)
+{
+	u32 csr;
+
+	if (enable_1510_mode && ch >= 6) {
+		csr = dma_chan[ch].saved_csr;
+		dma_chan[ch].saved_csr = 0;
+	} else
+		csr = p->dma_read(CSR, ch);
+	if (enable_1510_mode && ch <= 2 && (csr >> 7) != 0) {
+		dma_chan[ch + 6].saved_csr = csr >> 7;
+		csr &= 0x7f;
+	}
+	if ((csr & 0x3f) == 0)
+		return 0;
+	if (unlikely(dma_chan[ch].dev_id == -1)) {
+		pr_warn("Spurious interrupt from DMA channel %d (CSR %04x)\n",
+			ch, csr);
+		return 0;
+	}
+	if (unlikely(csr & OMAP1_DMA_TOUT_IRQ))
+		pr_warn("DMA timeout with device %d\n", dma_chan[ch].dev_id);
+	if (unlikely(csr & OMAP_DMA_DROP_IRQ))
+		pr_warn("DMA synchronization event drop occurred with device %d\n",
+			dma_chan[ch].dev_id);
+	if (likely(csr & OMAP_DMA_BLOCK_IRQ))
+		dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE;
+	if (likely(dma_chan[ch].callback != NULL))
+		dma_chan[ch].callback(ch, csr, dma_chan[ch].data);
+
+	return 1;
+}
+
+static irqreturn_t omap1_dma_irq_handler(int irq, void *dev_id)
+{
+	int ch = ((int) dev_id) - 1;
+	int handled = 0;
+
+	for (;;) {
+		int handled_now = 0;
+
+		handled_now += omap1_dma_handle_ch(ch);
+		if (enable_1510_mode && dma_chan[ch + 6].saved_csr)
+			handled_now += omap1_dma_handle_ch(ch + 6);
+		if (!handled_now)
+			break;
+		handled += handled_now;
+	}
+
+	return handled ? IRQ_HANDLED : IRQ_NONE;
+}
+
+struct omap_system_dma_plat_info *omap_get_plat_info(void)
+{
+	return p;
+}
+EXPORT_SYMBOL_GPL(omap_get_plat_info);
+
+static int omap_system_dma_probe(struct platform_device *pdev)
+{
+	int ch, ret = 0;
+	int dma_irq;
+	char irq_name[4];
+
+	p = pdev->dev.platform_data;
+	if (!p) {
+		dev_err(&pdev->dev,
+			"%s: System DMA initialized without platform data\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	d			= p->dma_attr;
+	errata			= p->errata;
+
+	if ((d->dev_caps & RESERVE_CHANNEL) && omap_dma_reserve_channels
+			&& (omap_dma_reserve_channels < d->lch_count))
+		d->lch_count	= omap_dma_reserve_channels;
+
+	dma_lch_count		= d->lch_count;
+	dma_chan_count		= dma_lch_count;
+	enable_1510_mode	= d->dev_caps & ENABLE_1510_MODE;
+
+	dma_chan = devm_kcalloc(&pdev->dev, dma_lch_count,
+				sizeof(*dma_chan), GFP_KERNEL);
+	if (!dma_chan)
+		return -ENOMEM;
+
+	for (ch = 0; ch < dma_chan_count; ch++) {
+		omap_clear_dma(ch);
+
+		dma_chan[ch].dev_id = -1;
+		dma_chan[ch].next_lch = -1;
+
+		if (ch >= 6 && enable_1510_mode)
+			continue;
+
+		/*
+		 * request_irq() doesn't like dev_id (ie. ch) being
+		 * zero, so we have to kludge around this.
+		 */
+		sprintf(&irq_name[0], "%d", ch);
+		dma_irq = platform_get_irq_byname(pdev, irq_name);
+
+		if (dma_irq < 0) {
+			ret = dma_irq;
+			goto exit_dma_irq_fail;
+		}
+
+		/* INT_DMA_LCD is handled in lcd_dma.c */
+		if (dma_irq == INT_DMA_LCD)
+			continue;
+
+		ret = request_irq(dma_irq,
+				omap1_dma_irq_handler, 0, "DMA",
+				(void *) (ch + 1));
+		if (ret != 0)
+			goto exit_dma_irq_fail;
+	}
+
+	/* reserve dma channels 0 and 1 in high security devices on 34xx */
+	if (d->dev_caps & HS_CHANNELS_RESERVED) {
+		pr_info("Reserving DMA channels 0 and 1 for HS ROM code\n");
+		dma_chan[0].dev_id = 0;
+		dma_chan[1].dev_id = 1;
+	}
+	p->show_dma_caps();
+	return 0;
+
+exit_dma_irq_fail:
+	return ret;
+}
+
+static void omap_system_dma_remove(struct platform_device *pdev)
+{
+	int dma_irq, irq_rel = 0;
+
+	for ( ; irq_rel < dma_chan_count; irq_rel++) {
+		dma_irq = platform_get_irq(pdev, irq_rel);
+		free_irq(dma_irq, (void *)(irq_rel + 1));
+	}
+}
+
+static struct platform_driver omap_system_dma_driver = {
+	.probe		= omap_system_dma_probe,
+	.remove		= omap_system_dma_remove,
+	.driver		= {
+		.name	= "omap_dma_system"
+	},
+};
+
+static int __init omap_system_dma_init(void)
+{
+	return platform_driver_register(&omap_system_dma_driver);
+}
+arch_initcall(omap_system_dma_init);
+
+static void __exit omap_system_dma_exit(void)
+{
+	platform_driver_unregister(&omap_system_dma_driver);
+}
+
+MODULE_DESCRIPTION("OMAP SYSTEM DMA DRIVER");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Texas Instruments Inc");
+
+/*
+ * Reserve the omap SDMA channels using cmdline bootarg
+ * "omap_dma_reserve_ch=". The valid range is 1 to 32
+ */
+static int __init omap_dma_cmdline_reserve_ch(char *str)
+{
+	if (get_option(&str, &omap_dma_reserve_channels) != 1)
+		omap_dma_reserve_channels = 0;
+	return 1;
+}
+
+__setup("omap_dma_reserve_ch=", omap_dma_cmdline_reserve_ch);
+
+
diff --git a/arch/arm/mach-omap1/opp.h b/arch/arm/mach-omap1/opp.h
new file mode 100644
index 000000000..5b8b9c8ed
--- /dev/null
+++ b/arch/arm/mach-omap1/opp.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/arch/arm/mach-omap1/opp.h
+ *
+ *  Copyright (C) 2004 - 2005 Nokia corporation
+ *  Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *  Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP1_OPP_H
+#define __ARCH_ARM_MACH_OMAP1_OPP_H
+
+#include <linux/types.h>
+
+struct mpu_rate {
+	unsigned long		rate;
+	unsigned long		xtal;
+	unsigned long		pll_rate;
+	__u16			ckctl_val;
+	__u16			dpllctl_val;
+	u32			flags;
+};
+
+extern struct mpu_rate omap1_rate_table[];
+
+#endif
diff --git a/arch/arm/mach-omap1/opp_data.c b/arch/arm/mach-omap1/opp_data.c
new file mode 100644
index 000000000..a27ca7dc0
--- /dev/null
+++ b/arch/arm/mach-omap1/opp_data.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/arch/arm/mach-omap1/opp_data.c
+ *
+ *  Copyright (C) 2004 - 2005 Nokia corporation
+ *  Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *  Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
+ */
+
+#include "clock.h"
+#include "opp.h"
+
+/*-------------------------------------------------------------------------
+ * Omap1 MPU rate table
+ *-------------------------------------------------------------------------*/
+struct mpu_rate omap1_rate_table[] = {
+	/* MPU MHz, xtal MHz, dpll1 MHz, CKCTL, DPLL_CTL
+	 * NOTE: Comment order here is different from bits in CKCTL value:
+	 * armdiv, dspdiv, dspmmu, tcdiv, perdiv, lcddiv
+	 */
+	{ 216000000, 12000000, 216000000, 0x050d, 0x2910, /* 1/1/2/2/2/8 */
+			CK_1710 },
+	{ 195000000, 13000000, 195000000, 0x050e, 0x2790, /* 1/1/2/2/4/8 */
+			CK_7XX },
+	{ 192000000, 19200000, 192000000, 0x050f, 0x2510, /* 1/1/2/2/8/8 */
+			CK_16XX },
+	{ 192000000, 12000000, 192000000, 0x050f, 0x2810, /* 1/1/2/2/8/8 */
+			CK_16XX },
+	{  96000000, 12000000, 192000000, 0x055f, 0x2810, /* 2/2/2/2/8/8 */
+			CK_16XX },
+	{  48000000, 12000000, 192000000, 0x0baf, 0x2810, /* 4/4/4/8/8/8 */
+			CK_16XX },
+	{  24000000, 12000000, 192000000, 0x0fff, 0x2810, /* 8/8/8/8/8/8 */
+			CK_16XX },
+	{ 182000000, 13000000, 182000000, 0x050e, 0x2710, /* 1/1/2/2/4/8 */
+			CK_7XX },
+	{ 168000000, 12000000, 168000000, 0x010f, 0x2710, /* 1/1/1/2/8/8 */
+			CK_16XX|CK_7XX },
+	{ 150000000, 12000000, 150000000, 0x010a, 0x2cb0, /* 1/1/1/2/4/4 */
+			CK_1510 },
+	{ 120000000, 12000000, 120000000, 0x010a, 0x2510, /* 1/1/1/2/4/4 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  96000000, 12000000,  96000000, 0x0005, 0x2410, /* 1/1/1/1/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  60000000, 12000000,  60000000, 0x0005, 0x2290, /* 1/1/1/1/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  30000000, 12000000,  60000000, 0x0555, 0x2290, /* 2/2/2/2/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{ 0, 0, 0, 0, 0 },
+};
+
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
new file mode 100644
index 000000000..6a5815aa0
--- /dev/null
+++ b/arch/arm/mach-omap1/pm.c
@@ -0,0 +1,644 @@
+/*
+ * linux/arch/arm/mach-omap1/pm.c
+ *
+ * OMAP Power Management Routines
+ *
+ * Original code for the SA11x0:
+ * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
+ *
+ * Modified for the PXA250 by Nicolas Pitre:
+ * Copyright (c) 2002 Monta Vista Software, Inc.
+ *
+ * Modified for the OMAP1510 by David Singleton:
+ * Copyright (c) 2002 Monta Vista Software, Inc.
+ *
+ * Cleanup 2004 for OMAP1510/1610 by Dirk Behme <dirk.behme@de.bosch.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.
+ */
+
+#include <linux/suspend.h>
+#include <linux/sched.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/interrupt.h>
+#include <linux/sysfs.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/atomic.h>
+#include <linux/cpu.h>
+
+#include <asm/fncpy.h>
+#include <asm/system_misc.h>
+#include <asm/irq.h>
+#include <asm/mach/time.h>
+#include <asm/mach/irq.h>
+
+#include <linux/soc/ti/omap1-io.h>
+#include "tc.h"
+#include <linux/omap-dma.h>
+#include <clocksource/timer-ti-dm.h>
+
+#include "hardware.h"
+#include "mux.h"
+#include "irqs.h"
+#include "iomap.h"
+#include "clock.h"
+#include "pm.h"
+#include "soc.h"
+#include "sram.h"
+
+static unsigned int arm_sleep_save[ARM_SLEEP_SAVE_SIZE];
+static unsigned short dsp_sleep_save[DSP_SLEEP_SAVE_SIZE];
+static unsigned short ulpd_sleep_save[ULPD_SLEEP_SAVE_SIZE];
+static unsigned int mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_SIZE];
+static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE];
+
+static unsigned short enable_dyn_sleep;
+
+static ssize_t idle_show(struct kobject *kobj, struct kobj_attribute *attr,
+			 char *buf)
+{
+	return sprintf(buf, "%hu\n", enable_dyn_sleep);
+}
+
+static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr,
+			  const char * buf, size_t n)
+{
+	unsigned short value;
+	if (sscanf(buf, "%hu", &value) != 1 ||
+	    (value != 0 && value != 1) ||
+	    (value != 0 && !IS_ENABLED(CONFIG_OMAP_32K_TIMER))) {
+		pr_err("idle_sleep_store: Invalid value\n");
+		return -EINVAL;
+	}
+	enable_dyn_sleep = value;
+	return n;
+}
+
+static struct kobj_attribute sleep_while_idle_attr =
+	__ATTR(sleep_while_idle, 0644, idle_show, idle_store);
+
+
+static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
+
+/*
+ * Let's power down on idle, but only if we are really
+ * idle, because once we start down the path of
+ * going idle we continue to do idle even if we get
+ * a clock tick interrupt . .
+ */
+void omap1_pm_idle(void)
+{
+	extern __u32 arm_idlect1_mask;
+	__u32 use_idlect1 = arm_idlect1_mask;
+
+	local_fiq_disable();
+
+#if defined(CONFIG_OMAP_MPU_TIMER) && !defined(CONFIG_OMAP_DM_TIMER)
+	use_idlect1 = use_idlect1 & ~(1 << 9);
+#endif
+
+#ifdef CONFIG_OMAP_DM_TIMER
+	use_idlect1 = omap_dm_timer_modify_idlect_mask(use_idlect1);
+#endif
+
+	if (omap_dma_running())
+		use_idlect1 &= ~(1 << 6);
+
+	/*
+	 * We should be able to remove the do_sleep variable and multiple
+	 * tests above as soon as drivers, timer and DMA code have been fixed.
+	 * Even the sleep block count should become obsolete.
+	 */
+	if ((use_idlect1 != ~0) || !enable_dyn_sleep) {
+
+		__u32 saved_idlect1 = omap_readl(ARM_IDLECT1);
+		if (cpu_is_omap15xx())
+			use_idlect1 &= OMAP1510_BIG_SLEEP_REQUEST;
+		else
+			use_idlect1 &= OMAP1610_IDLECT1_SLEEP_VAL;
+		omap_writel(use_idlect1, ARM_IDLECT1);
+		__asm__ volatile ("mcr	p15, 0, r0, c7, c0, 4");
+		omap_writel(saved_idlect1, ARM_IDLECT1);
+
+		local_fiq_enable();
+		return;
+	}
+	omap_sram_suspend(omap_readl(ARM_IDLECT1),
+			  omap_readl(ARM_IDLECT2));
+
+	local_fiq_enable();
+}
+
+/*
+ * Configuration of the wakeup event is board specific. For the
+ * moment we put it into this helper function. Later it may move
+ * to board specific files.
+ */
+static void omap_pm_wakeup_setup(void)
+{
+	u32 level1_wake = 0;
+	u32 level2_wake = OMAP_IRQ_BIT(INT_UART2);
+
+	/*
+	 * Turn off all interrupts except GPIO bank 1, L1-2nd level cascade,
+	 * and the L2 wakeup interrupts: keypad and UART2. Note that the
+	 * drivers must still separately call omap_set_gpio_wakeup() to
+	 * wake up to a GPIO interrupt.
+	 */
+	if (cpu_is_omap15xx())
+		level1_wake = OMAP_IRQ_BIT(INT_GPIO_BANK1) |
+			OMAP_IRQ_BIT(INT_1510_IH2_IRQ);
+	else if (cpu_is_omap16xx())
+		level1_wake = OMAP_IRQ_BIT(INT_GPIO_BANK1) |
+			OMAP_IRQ_BIT(INT_1610_IH2_IRQ);
+
+	omap_writel(~level1_wake, OMAP_IH1_MIR);
+
+	if (cpu_is_omap15xx()) {
+		level2_wake |= OMAP_IRQ_BIT(INT_KEYBOARD);
+		omap_writel(~level2_wake,  OMAP_IH2_MIR);
+	} else if (cpu_is_omap16xx()) {
+		level2_wake |= OMAP_IRQ_BIT(INT_KEYBOARD);
+		omap_writel(~level2_wake, OMAP_IH2_0_MIR);
+
+		/* INT_1610_WAKE_UP_REQ is needed for GPIO wakeup... */
+		omap_writel(~OMAP_IRQ_BIT(INT_1610_WAKE_UP_REQ),
+			    OMAP_IH2_1_MIR);
+		omap_writel(~0x0, OMAP_IH2_2_MIR);
+		omap_writel(~0x0, OMAP_IH2_3_MIR);
+	}
+
+	/*  New IRQ agreement, recalculate in cascade order */
+	omap_writel(1, OMAP_IH2_CONTROL);
+	omap_writel(1, OMAP_IH1_CONTROL);
+}
+
+#define EN_DSPCK	13	/* ARM_CKCTL */
+#define EN_APICK	6	/* ARM_IDLECT2 */
+#define DSP_EN		1	/* ARM_RSTCT1 */
+
+void omap1_pm_suspend(void)
+{
+	unsigned long arg0 = 0, arg1 = 0;
+
+	printk(KERN_INFO "PM: OMAP%x is trying to enter deep sleep...\n",
+		omap_rev());
+
+	omap_serial_wake_trigger(1);
+
+	if (!cpu_is_omap15xx())
+		omap_writew(0xffff, ULPD_SOFT_DISABLE_REQ_REG);
+
+	/*
+	 * Step 1: turn off interrupts (FIXME: NOTE: already disabled)
+	 */
+
+	local_irq_disable();
+	local_fiq_disable();
+
+	/*
+	 * Step 2: save registers
+	 *
+	 * The omap is a strange/beautiful device. The caches, memory
+	 * and register state are preserved across power saves.
+	 * We have to save and restore very little register state to
+	 * idle the omap.
+         *
+	 * Save interrupt, MPUI, ARM and UPLD control registers.
+	 */
+
+	if (cpu_is_omap15xx()) {
+		MPUI1510_SAVE(OMAP_IH1_MIR);
+		MPUI1510_SAVE(OMAP_IH2_MIR);
+		MPUI1510_SAVE(MPUI_CTRL);
+		MPUI1510_SAVE(MPUI_DSP_BOOT_CONFIG);
+		MPUI1510_SAVE(MPUI_DSP_API_CONFIG);
+		MPUI1510_SAVE(EMIFS_CONFIG);
+		MPUI1510_SAVE(EMIFF_SDRAM_CONFIG);
+	} else if (cpu_is_omap16xx()) {
+		MPUI1610_SAVE(OMAP_IH1_MIR);
+		MPUI1610_SAVE(OMAP_IH2_0_MIR);
+		MPUI1610_SAVE(OMAP_IH2_1_MIR);
+		MPUI1610_SAVE(OMAP_IH2_2_MIR);
+		MPUI1610_SAVE(OMAP_IH2_3_MIR);
+		MPUI1610_SAVE(MPUI_CTRL);
+		MPUI1610_SAVE(MPUI_DSP_BOOT_CONFIG);
+		MPUI1610_SAVE(MPUI_DSP_API_CONFIG);
+		MPUI1610_SAVE(EMIFS_CONFIG);
+		MPUI1610_SAVE(EMIFF_SDRAM_CONFIG);
+	}
+
+	ARM_SAVE(ARM_CKCTL);
+	ARM_SAVE(ARM_IDLECT1);
+	ARM_SAVE(ARM_IDLECT2);
+	if (!(cpu_is_omap15xx()))
+		ARM_SAVE(ARM_IDLECT3);
+	ARM_SAVE(ARM_EWUPCT);
+	ARM_SAVE(ARM_RSTCT1);
+	ARM_SAVE(ARM_RSTCT2);
+	ARM_SAVE(ARM_SYSST);
+	ULPD_SAVE(ULPD_CLOCK_CTRL);
+	ULPD_SAVE(ULPD_STATUS_REQ);
+
+	/* (Step 3 removed - we now allow deep sleep by default) */
+
+	/*
+	 * Step 4: OMAP DSP Shutdown
+	 */
+
+	/* stop DSP */
+	omap_writew(omap_readw(ARM_RSTCT1) & ~(1 << DSP_EN), ARM_RSTCT1);
+
+	/* shut down dsp_ck */
+	omap_writew(omap_readw(ARM_CKCTL) & ~(1 << EN_DSPCK), ARM_CKCTL);
+
+	/* temporarily enabling api_ck to access DSP registers */
+	omap_writew(omap_readw(ARM_IDLECT2) | 1 << EN_APICK, ARM_IDLECT2);
+
+	/* save DSP registers */
+	DSP_SAVE(DSP_IDLECT2);
+
+	/* Stop all DSP domain clocks */
+	__raw_writew(0, DSP_IDLECT2);
+
+	/*
+	 * Step 5: Wakeup Event Setup
+	 */
+
+	omap_pm_wakeup_setup();
+
+	/*
+	 * Step 6: ARM and Traffic controller shutdown
+	 */
+
+	/* disable ARM watchdog */
+	omap_writel(0x00F5, OMAP_WDT_TIMER_MODE);
+	omap_writel(0x00A0, OMAP_WDT_TIMER_MODE);
+
+	/*
+	 * Step 6b: ARM and Traffic controller shutdown
+	 *
+	 * Step 6 continues here. Prepare jump to power management
+	 * assembly code in internal SRAM.
+	 *
+	 * Since the omap_cpu_suspend routine has been copied to
+	 * SRAM, we'll do an indirect procedure call to it and pass the
+	 * contents of arm_idlect1 and arm_idlect2 so it can restore
+	 * them when it wakes up and it will return.
+	 */
+
+	arg0 = arm_sleep_save[ARM_SLEEP_SAVE_ARM_IDLECT1];
+	arg1 = arm_sleep_save[ARM_SLEEP_SAVE_ARM_IDLECT2];
+
+	/*
+	 * Step 6c: ARM and Traffic controller shutdown
+	 *
+	 * Jump to assembly code. The processor will stay there
+	 * until wake up.
+	 */
+	omap_sram_suspend(arg0, arg1);
+
+	/*
+	 * If we are here, processor is woken up!
+	 */
+
+	/*
+	 * Restore DSP clocks
+	 */
+
+	/* again temporarily enabling api_ck to access DSP registers */
+	omap_writew(omap_readw(ARM_IDLECT2) | 1 << EN_APICK, ARM_IDLECT2);
+
+	/* Restore DSP domain clocks */
+	DSP_RESTORE(DSP_IDLECT2);
+
+	/*
+	 * Restore ARM state, except ARM_IDLECT1/2 which omap_cpu_suspend did
+	 */
+
+	if (!(cpu_is_omap15xx()))
+		ARM_RESTORE(ARM_IDLECT3);
+	ARM_RESTORE(ARM_CKCTL);
+	ARM_RESTORE(ARM_EWUPCT);
+	ARM_RESTORE(ARM_RSTCT1);
+	ARM_RESTORE(ARM_RSTCT2);
+	ARM_RESTORE(ARM_SYSST);
+	ULPD_RESTORE(ULPD_CLOCK_CTRL);
+	ULPD_RESTORE(ULPD_STATUS_REQ);
+
+	if (cpu_is_omap15xx()) {
+		MPUI1510_RESTORE(MPUI_CTRL);
+		MPUI1510_RESTORE(MPUI_DSP_BOOT_CONFIG);
+		MPUI1510_RESTORE(MPUI_DSP_API_CONFIG);
+		MPUI1510_RESTORE(EMIFS_CONFIG);
+		MPUI1510_RESTORE(EMIFF_SDRAM_CONFIG);
+		MPUI1510_RESTORE(OMAP_IH1_MIR);
+		MPUI1510_RESTORE(OMAP_IH2_MIR);
+	} else if (cpu_is_omap16xx()) {
+		MPUI1610_RESTORE(MPUI_CTRL);
+		MPUI1610_RESTORE(MPUI_DSP_BOOT_CONFIG);
+		MPUI1610_RESTORE(MPUI_DSP_API_CONFIG);
+		MPUI1610_RESTORE(EMIFS_CONFIG);
+		MPUI1610_RESTORE(EMIFF_SDRAM_CONFIG);
+
+		MPUI1610_RESTORE(OMAP_IH1_MIR);
+		MPUI1610_RESTORE(OMAP_IH2_0_MIR);
+		MPUI1610_RESTORE(OMAP_IH2_1_MIR);
+		MPUI1610_RESTORE(OMAP_IH2_2_MIR);
+		MPUI1610_RESTORE(OMAP_IH2_3_MIR);
+	}
+
+	if (!cpu_is_omap15xx())
+		omap_writew(0, ULPD_SOFT_DISABLE_REQ_REG);
+
+	/*
+	 * Re-enable interrupts
+	 */
+
+	local_irq_enable();
+	local_fiq_enable();
+
+	omap_serial_wake_trigger(0);
+
+	printk(KERN_INFO "PM: OMAP%x is re-starting from deep sleep...\n",
+		omap_rev());
+}
+
+#ifdef CONFIG_DEBUG_FS
+/*
+ * Read system PM registers for debugging
+ */
+static int omap_pm_debug_show(struct seq_file *m, void *v)
+{
+	ARM_SAVE(ARM_CKCTL);
+	ARM_SAVE(ARM_IDLECT1);
+	ARM_SAVE(ARM_IDLECT2);
+	if (!(cpu_is_omap15xx()))
+		ARM_SAVE(ARM_IDLECT3);
+	ARM_SAVE(ARM_EWUPCT);
+	ARM_SAVE(ARM_RSTCT1);
+	ARM_SAVE(ARM_RSTCT2);
+	ARM_SAVE(ARM_SYSST);
+
+	ULPD_SAVE(ULPD_IT_STATUS);
+	ULPD_SAVE(ULPD_CLOCK_CTRL);
+	ULPD_SAVE(ULPD_SOFT_REQ);
+	ULPD_SAVE(ULPD_STATUS_REQ);
+	ULPD_SAVE(ULPD_DPLL_CTRL);
+	ULPD_SAVE(ULPD_POWER_CTRL);
+
+	if (cpu_is_omap15xx()) {
+		MPUI1510_SAVE(MPUI_CTRL);
+		MPUI1510_SAVE(MPUI_DSP_STATUS);
+		MPUI1510_SAVE(MPUI_DSP_BOOT_CONFIG);
+		MPUI1510_SAVE(MPUI_DSP_API_CONFIG);
+		MPUI1510_SAVE(EMIFF_SDRAM_CONFIG);
+		MPUI1510_SAVE(EMIFS_CONFIG);
+	} else if (cpu_is_omap16xx()) {
+		MPUI1610_SAVE(MPUI_CTRL);
+		MPUI1610_SAVE(MPUI_DSP_STATUS);
+		MPUI1610_SAVE(MPUI_DSP_BOOT_CONFIG);
+		MPUI1610_SAVE(MPUI_DSP_API_CONFIG);
+		MPUI1610_SAVE(EMIFF_SDRAM_CONFIG);
+		MPUI1610_SAVE(EMIFS_CONFIG);
+	}
+
+	seq_printf(m,
+		   "ARM_CKCTL_REG:            0x%-8x     \n"
+		   "ARM_IDLECT1_REG:          0x%-8x     \n"
+		   "ARM_IDLECT2_REG:          0x%-8x     \n"
+		   "ARM_IDLECT3_REG:	      0x%-8x     \n"
+		   "ARM_EWUPCT_REG:           0x%-8x     \n"
+		   "ARM_RSTCT1_REG:           0x%-8x     \n"
+		   "ARM_RSTCT2_REG:           0x%-8x     \n"
+		   "ARM_SYSST_REG:            0x%-8x     \n"
+		   "ULPD_IT_STATUS_REG:       0x%-4x     \n"
+		   "ULPD_CLOCK_CTRL_REG:      0x%-4x     \n"
+		   "ULPD_SOFT_REQ_REG:        0x%-4x     \n"
+		   "ULPD_DPLL_CTRL_REG:       0x%-4x     \n"
+		   "ULPD_STATUS_REQ_REG:      0x%-4x     \n"
+		   "ULPD_POWER_CTRL_REG:      0x%-4x     \n",
+		   ARM_SHOW(ARM_CKCTL),
+		   ARM_SHOW(ARM_IDLECT1),
+		   ARM_SHOW(ARM_IDLECT2),
+		   ARM_SHOW(ARM_IDLECT3),
+		   ARM_SHOW(ARM_EWUPCT),
+		   ARM_SHOW(ARM_RSTCT1),
+		   ARM_SHOW(ARM_RSTCT2),
+		   ARM_SHOW(ARM_SYSST),
+		   ULPD_SHOW(ULPD_IT_STATUS),
+		   ULPD_SHOW(ULPD_CLOCK_CTRL),
+		   ULPD_SHOW(ULPD_SOFT_REQ),
+		   ULPD_SHOW(ULPD_DPLL_CTRL),
+		   ULPD_SHOW(ULPD_STATUS_REQ),
+		   ULPD_SHOW(ULPD_POWER_CTRL));
+
+	if (cpu_is_omap15xx()) {
+		seq_printf(m,
+			   "MPUI1510_CTRL_REG             0x%-8x \n"
+			   "MPUI1510_DSP_STATUS_REG:      0x%-8x \n"
+			   "MPUI1510_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
+			   "MPUI1510_DSP_API_CONFIG_REG:  0x%-8x \n"
+			   "MPUI1510_SDRAM_CONFIG_REG:    0x%-8x \n"
+			   "MPUI1510_EMIFS_CONFIG_REG:    0x%-8x \n",
+			   MPUI1510_SHOW(MPUI_CTRL),
+			   MPUI1510_SHOW(MPUI_DSP_STATUS),
+			   MPUI1510_SHOW(MPUI_DSP_BOOT_CONFIG),
+			   MPUI1510_SHOW(MPUI_DSP_API_CONFIG),
+			   MPUI1510_SHOW(EMIFF_SDRAM_CONFIG),
+			   MPUI1510_SHOW(EMIFS_CONFIG));
+	} else if (cpu_is_omap16xx()) {
+		seq_printf(m,
+			   "MPUI1610_CTRL_REG             0x%-8x \n"
+			   "MPUI1610_DSP_STATUS_REG:      0x%-8x \n"
+			   "MPUI1610_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
+			   "MPUI1610_DSP_API_CONFIG_REG:  0x%-8x \n"
+			   "MPUI1610_SDRAM_CONFIG_REG:    0x%-8x \n"
+			   "MPUI1610_EMIFS_CONFIG_REG:    0x%-8x \n",
+			   MPUI1610_SHOW(MPUI_CTRL),
+			   MPUI1610_SHOW(MPUI_DSP_STATUS),
+			   MPUI1610_SHOW(MPUI_DSP_BOOT_CONFIG),
+			   MPUI1610_SHOW(MPUI_DSP_API_CONFIG),
+			   MPUI1610_SHOW(EMIFF_SDRAM_CONFIG),
+			   MPUI1610_SHOW(EMIFS_CONFIG));
+	}
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(omap_pm_debug);
+
+static void omap_pm_init_debugfs(void)
+{
+	struct dentry *d;
+
+	d = debugfs_create_dir("pm_debug", NULL);
+	debugfs_create_file("omap_pm", S_IWUSR | S_IRUGO, d, NULL,
+			    &omap_pm_debug_fops);
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
+/*
+ *	omap_pm_prepare - Do preliminary suspend work.
+ *
+ */
+static int omap_pm_prepare(void)
+{
+	/* We cannot sleep in idle until we have resumed */
+	cpu_idle_poll_ctrl(true);
+	return 0;
+}
+
+
+/*
+ *	omap_pm_enter - Actually enter a sleep state.
+ *	@state:		State we're entering.
+ *
+ */
+
+static int omap_pm_enter(suspend_state_t state)
+{
+	switch (state)
+	{
+	case PM_SUSPEND_MEM:
+		omap1_pm_suspend();
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+
+/**
+ *	omap_pm_finish - Finish up suspend sequence.
+ *
+ *	This is called after we wake back up (or if entering the sleep state
+ *	failed).
+ */
+
+static void omap_pm_finish(void)
+{
+	cpu_idle_poll_ctrl(false);
+}
+
+
+static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
+{
+	return IRQ_HANDLED;
+}
+
+
+
+static const struct platform_suspend_ops omap_pm_ops = {
+	.prepare	= omap_pm_prepare,
+	.enter		= omap_pm_enter,
+	.finish		= omap_pm_finish,
+	.valid		= suspend_valid_only_mem,
+};
+
+static int __init omap_pm_init(void)
+{
+	int error = 0;
+	int irq;
+
+	if (!cpu_class_is_omap1())
+		return -ENODEV;
+
+	pr_info("Power Management for TI OMAP.\n");
+
+	if (!IS_ENABLED(CONFIG_OMAP_32K_TIMER))
+		pr_info("OMAP1 PM: sleep states in idle disabled due to no 32KiHz timer\n");
+
+	if (!IS_ENABLED(CONFIG_OMAP_DM_TIMER))
+		pr_info("OMAP1 PM: sleep states in idle disabled due to no DMTIMER support\n");
+
+	if (IS_ENABLED(CONFIG_OMAP_32K_TIMER) &&
+	    IS_ENABLED(CONFIG_OMAP_DM_TIMER)) {
+		/* OMAP16xx only */
+		pr_info("OMAP1 PM: sleep states in idle enabled\n");
+		enable_dyn_sleep = 1;
+	}
+
+	/*
+	 * We copy the assembler sleep/wakeup routines to SRAM.
+	 * These routines need to be in SRAM as that's the only
+	 * memory the MPU can see when it wakes up.
+	 */
+	if (cpu_is_omap15xx()) {
+		omap_sram_suspend = omap_sram_push(omap1510_cpu_suspend,
+						   omap1510_cpu_suspend_sz);
+	} else if (cpu_is_omap16xx()) {
+		omap_sram_suspend = omap_sram_push(omap1610_cpu_suspend,
+						   omap1610_cpu_suspend_sz);
+	}
+
+	if (omap_sram_suspend == NULL) {
+		printk(KERN_ERR "PM not initialized: Missing SRAM support\n");
+		return -ENODEV;
+	}
+
+	arm_pm_idle = omap1_pm_idle;
+
+	if (cpu_is_omap16xx())
+		irq = INT_1610_WAKE_UP_REQ;
+	else
+		irq = -1;
+
+	if (irq >= 0) {
+		if (request_irq(irq, omap_wakeup_interrupt, 0, "peripheral wakeup", NULL))
+			pr_err("Failed to request irq %d (peripheral wakeup)\n", irq);
+	}
+
+	/* Program new power ramp-up time
+	 * (0 for most boards since we don't lower voltage when in deep sleep)
+	 */
+	omap_writew(ULPD_SETUP_ANALOG_CELL_3_VAL, ULPD_SETUP_ANALOG_CELL_3);
+
+	/* Setup ULPD POWER_CTRL_REG - enter deep sleep whenever possible */
+	omap_writew(ULPD_POWER_CTRL_REG_VAL, ULPD_POWER_CTRL);
+
+	/* Configure IDLECT3 */
+	if (cpu_is_omap16xx())
+		omap_writel(OMAP1610_IDLECT3_VAL, OMAP1610_IDLECT3);
+
+	suspend_set_ops(&omap_pm_ops);
+
+#ifdef CONFIG_DEBUG_FS
+	omap_pm_init_debugfs();
+#endif
+
+	error = sysfs_create_file(power_kobj, &sleep_while_idle_attr.attr);
+	if (error)
+		pr_err("sysfs_create_file failed: %d\n", error);
+
+	if (cpu_is_omap16xx()) {
+		/* configure LOW_PWR pin */
+		omap_cfg_reg(T20_1610_LOW_PWR);
+	}
+
+	return error;
+}
+__initcall(omap_pm_init);
diff --git a/arch/arm/mach-omap1/pm.h b/arch/arm/mach-omap1/pm.h
new file mode 100644
index 000000000..b2763fb09
--- /dev/null
+++ b/arch/arm/mach-omap1/pm.h
@@ -0,0 +1,237 @@
+/*
+ * arch/arm/mach-omap1/pm.h
+ *
+ * Header file for OMAP1 Power Management Routines
+ *
+ * Author: MontaVista Software, Inc.
+ *	   support@mvista.com
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ *
+ * Cleanup 2004 for Linux 2.6 by Dirk Behme <dirk.behme@de.bosch.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.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP1_PM_H
+#define __ARCH_ARM_MACH_OMAP1_PM_H
+
+#include <linux/soc/ti/omap1-io.h>
+
+/*
+ * ----------------------------------------------------------------------------
+ * Register and offset definitions to be used in PM assembler code
+ * ----------------------------------------------------------------------------
+ */
+#define CLKGEN_REG_ASM_BASE		OMAP1_IO_ADDRESS(0xfffece00)
+#define ARM_IDLECT1_ASM_OFFSET		0x04
+#define ARM_IDLECT2_ASM_OFFSET		0x08
+
+#define TCMIF_ASM_BASE			OMAP1_IO_ADDRESS(0xfffecc00)
+#define EMIFS_CONFIG_ASM_OFFSET		0x0c
+#define EMIFF_SDRAM_CONFIG_ASM_OFFSET	0x20
+
+/*
+ * ----------------------------------------------------------------------------
+ * Power management bitmasks
+ * ----------------------------------------------------------------------------
+ */
+#define IDLE_WAIT_CYCLES		0x00000fff
+#define PERIPHERAL_ENABLE		0x2
+
+#define SELF_REFRESH_MODE		0x0c000001
+#define IDLE_EMIFS_REQUEST		0xc
+#define MODEM_32K_EN			0x1
+#define PER_EN				0x1
+
+#define CPU_SUSPEND_SIZE		200
+#define ULPD_LOW_PWR_EN			0x0001
+#define ULPD_DEEP_SLEEP_TRANSITION_EN	0x0010
+#define ULPD_SETUP_ANALOG_CELL_3_VAL	0
+#define ULPD_POWER_CTRL_REG_VAL		0x0219
+
+#define DSP_IDLE_DELAY			10
+#define DSP_IDLE			0x0040
+#define DSP_RST				0x0004
+#define DSP_ENABLE			0x0002
+#define SUFFICIENT_DSP_RESET_TIME	1000
+#define DEFAULT_MPUI_CONFIG		0x05cf
+#define ENABLE_XORCLK			0x2
+#define DSP_CLOCK_ENABLE		0x2000
+#define DSP_IDLE_MODE			0x2
+#define TC_IDLE_REQUEST			(0x0000000c)
+
+#define IRQ_LEVEL2			(1<<0)
+#define IRQ_KEYBOARD			(1<<1)
+#define IRQ_UART2			(1<<15)
+
+#define PDE_BIT				0x08
+#define PWD_EN_BIT			0x04
+#define EN_PERCK_BIT			0x04
+
+#define OMAP1510_DEEP_SLEEP_REQUEST	0x0ec7
+#define OMAP1510_BIG_SLEEP_REQUEST	0x0cc5
+#define OMAP1510_IDLE_LOOP_REQUEST	0x0c00
+#define OMAP1510_IDLE_CLOCK_DOMAINS	0x2
+
+/* Both big sleep and deep sleep use same values. Difference is in ULPD. */
+#define OMAP1610_IDLECT1_SLEEP_VAL	0x13c7
+#define OMAP1610_IDLECT2_SLEEP_VAL	0x09c7
+#define OMAP1610_IDLECT3_VAL		0x3f
+#define OMAP1610_IDLECT3_SLEEP_ORMASK	0x2c
+#define OMAP1610_IDLECT3		0xfffece24
+#define OMAP1610_IDLE_LOOP_REQUEST	0x0400
+
+#ifndef __ASSEMBLER__
+
+#include <linux/clk.h>
+
+extern struct kset power_subsys;
+
+extern void prevent_idle_sleep(void);
+extern void allow_idle_sleep(void);
+
+extern void omap1_pm_idle(void);
+extern void omap1_pm_suspend(void);
+
+extern void omap1510_cpu_suspend(unsigned long, unsigned long);
+extern void omap1610_cpu_suspend(unsigned long, unsigned long);
+
+extern unsigned int omap1510_cpu_suspend_sz;
+extern unsigned int omap1610_cpu_suspend_sz;
+
+#ifdef CONFIG_OMAP_SERIAL_WAKE
+extern void omap_serial_wake_trigger(int enable);
+#else
+#define omap_serial_wakeup_init()	{}
+#define omap_serial_wake_trigger(x)	{}
+#endif	/* CONFIG_OMAP_SERIAL_WAKE */
+
+#define ARM_SAVE(x) arm_sleep_save[ARM_SLEEP_SAVE_##x] = omap_readl(x)
+#define ARM_RESTORE(x) omap_writel((arm_sleep_save[ARM_SLEEP_SAVE_##x]), (x))
+#define ARM_SHOW(x) arm_sleep_save[ARM_SLEEP_SAVE_##x]
+
+#define DSP_SAVE(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x] = __raw_readw(x)
+#define DSP_RESTORE(x) __raw_writew((dsp_sleep_save[DSP_SLEEP_SAVE_##x]), (x))
+#define DSP_SHOW(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x]
+
+#define ULPD_SAVE(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x] = omap_readw(x)
+#define ULPD_RESTORE(x) omap_writew((ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]), (x))
+#define ULPD_SHOW(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]
+
+#define MPUI1510_SAVE(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x] = omap_readl(x)
+#define MPUI1510_RESTORE(x) omap_writel((mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]), (x))
+#define MPUI1510_SHOW(x) mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_##x]
+
+#define MPUI1610_SAVE(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x] = omap_readl(x)
+#define MPUI1610_RESTORE(x) omap_writel((mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]), (x))
+#define MPUI1610_SHOW(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]
+
+/*
+ * List of global OMAP registers to preserve.
+ * More ones like CP and general purpose register values are preserved
+ * with the stack pointer in sleep.S.
+ */
+
+enum arm_save_state {
+	ARM_SLEEP_SAVE_START = 0,
+	/*
+	 * MPU control registers 32 bits
+	 */
+	ARM_SLEEP_SAVE_ARM_CKCTL,
+	ARM_SLEEP_SAVE_ARM_IDLECT1,
+	ARM_SLEEP_SAVE_ARM_IDLECT2,
+	ARM_SLEEP_SAVE_ARM_IDLECT3,
+	ARM_SLEEP_SAVE_ARM_EWUPCT,
+	ARM_SLEEP_SAVE_ARM_RSTCT1,
+	ARM_SLEEP_SAVE_ARM_RSTCT2,
+	ARM_SLEEP_SAVE_ARM_SYSST,
+	ARM_SLEEP_SAVE_SIZE
+};
+
+enum dsp_save_state {
+	DSP_SLEEP_SAVE_START = 0,
+	/*
+	 * DSP registers 16 bits
+	 */
+	DSP_SLEEP_SAVE_DSP_IDLECT2,
+	DSP_SLEEP_SAVE_SIZE
+};
+
+enum ulpd_save_state {
+	ULPD_SLEEP_SAVE_START = 0,
+	/*
+	 * ULPD registers 16 bits
+	 */
+	ULPD_SLEEP_SAVE_ULPD_IT_STATUS,
+	ULPD_SLEEP_SAVE_ULPD_CLOCK_CTRL,
+	ULPD_SLEEP_SAVE_ULPD_SOFT_REQ,
+	ULPD_SLEEP_SAVE_ULPD_STATUS_REQ,
+	ULPD_SLEEP_SAVE_ULPD_DPLL_CTRL,
+	ULPD_SLEEP_SAVE_ULPD_POWER_CTRL,
+	ULPD_SLEEP_SAVE_SIZE
+};
+
+enum mpui1510_save_state {
+	MPUI1510_SLEEP_SAVE_START = 0,
+	/*
+	 * MPUI registers 32 bits
+	 */
+	MPUI1510_SLEEP_SAVE_MPUI_CTRL,
+	MPUI1510_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
+	MPUI1510_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
+	MPUI1510_SLEEP_SAVE_MPUI_DSP_STATUS,
+	MPUI1510_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
+	MPUI1510_SLEEP_SAVE_EMIFS_CONFIG,
+	MPUI1510_SLEEP_SAVE_OMAP_IH1_MIR,
+	MPUI1510_SLEEP_SAVE_OMAP_IH2_MIR,
+#if defined(CONFIG_ARCH_OMAP15XX)
+	MPUI1510_SLEEP_SAVE_SIZE
+#else
+	MPUI1510_SLEEP_SAVE_SIZE = 0
+#endif
+};
+
+enum mpui1610_save_state {
+	MPUI1610_SLEEP_SAVE_START = 0,
+	/*
+	 * MPUI registers 32 bits
+	 */
+	MPUI1610_SLEEP_SAVE_MPUI_CTRL,
+	MPUI1610_SLEEP_SAVE_MPUI_DSP_BOOT_CONFIG,
+	MPUI1610_SLEEP_SAVE_MPUI_DSP_API_CONFIG,
+	MPUI1610_SLEEP_SAVE_MPUI_DSP_STATUS,
+	MPUI1610_SLEEP_SAVE_EMIFF_SDRAM_CONFIG,
+	MPUI1610_SLEEP_SAVE_EMIFS_CONFIG,
+	MPUI1610_SLEEP_SAVE_OMAP_IH1_MIR,
+	MPUI1610_SLEEP_SAVE_OMAP_IH2_0_MIR,
+	MPUI1610_SLEEP_SAVE_OMAP_IH2_1_MIR,
+	MPUI1610_SLEEP_SAVE_OMAP_IH2_2_MIR,
+	MPUI1610_SLEEP_SAVE_OMAP_IH2_3_MIR,
+#if defined(CONFIG_ARCH_OMAP16XX)
+	MPUI1610_SLEEP_SAVE_SIZE
+#else
+	MPUI1610_SLEEP_SAVE_SIZE = 0
+#endif
+};
+
+#endif /* ASSEMBLER */
+#endif /* __ASM_ARCH_OMAP_PM_H */
diff --git a/arch/arm/mach-omap1/pm_bus.c b/arch/arm/mach-omap1/pm_bus.c
new file mode 100644
index 000000000..c04619ac0
--- /dev/null
+++ b/arch/arm/mach-omap1/pm_bus.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Runtime PM support code for OMAP1
+ *
+ * Author: Kevin Hilman, Deep Root Systems, LLC
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm_clock.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+
+#include "soc.h"
+
+static struct dev_pm_domain default_pm_domain = {
+	.ops = {
+		USE_PM_CLK_RUNTIME_OPS
+		USE_PLATFORM_PM_SLEEP_OPS
+	},
+};
+
+static struct pm_clk_notifier_block platform_bus_notifier = {
+	.pm_domain = &default_pm_domain,
+	.con_ids = { "ick", "fck", NULL, },
+};
+
+static int __init omap1_pm_runtime_init(void)
+{
+	if (!cpu_class_is_omap1())
+		return -ENODEV;
+
+	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
+
+	return 0;
+}
+core_initcall(omap1_pm_runtime_init);
diff --git a/arch/arm/mach-omap1/reset.c b/arch/arm/mach-omap1/reset.c
new file mode 100644
index 000000000..2eee6a696
--- /dev/null
+++ b/arch/arm/mach-omap1/reset.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * OMAP1 reset support
+ */
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/reboot.h>
+
+#include "hardware.h"
+#include "iomap.h"
+#include "common.h"
+
+/* ARM_SYSST bit shifts related to SoC reset sources */
+#define ARM_SYSST_POR_SHIFT				5
+#define ARM_SYSST_EXT_RST_SHIFT				4
+#define ARM_SYSST_ARM_WDRST_SHIFT			2
+#define ARM_SYSST_GLOB_SWRST_SHIFT			1
+
+/* Standardized reset source bits (across all OMAP SoCs) */
+#define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT		0
+#define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT		1
+#define OMAP_MPU_WD_RST_SRC_ID_SHIFT			3
+#define OMAP_EXTWARM_RST_SRC_ID_SHIFT			5
+
+
+void omap1_restart(enum reboot_mode mode, const char *cmd)
+{
+	/*
+	 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
+	 * "Global Software Reset Affects Traffic Controller Frequency".
+	 */
+	if (cpu_is_omap5912()) {
+		omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
+		omap_writew(0x8, ARM_RSTCT1);
+	}
+
+	omap_writew(1, ARM_RSTCT1);
+}
+
+/**
+ * omap1_get_reset_sources - return the source of the SoC's last reset
+ *
+ * Returns bits that represent the last reset source for the SoC.  The
+ * format is standardized across OMAPs for use by the OMAP watchdog.
+ */
+u32 omap1_get_reset_sources(void)
+{
+	u32 ret = 0;
+	u16 rs;
+
+	rs = __raw_readw(OMAP1_IO_ADDRESS(ARM_SYSST));
+
+	if (rs & (1 << ARM_SYSST_POR_SHIFT))
+		ret |= 1 << OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT;
+	if (rs & (1 << ARM_SYSST_EXT_RST_SHIFT))
+		ret |= 1 << OMAP_EXTWARM_RST_SRC_ID_SHIFT;
+	if (rs & (1 << ARM_SYSST_ARM_WDRST_SHIFT))
+		ret |= 1 << OMAP_MPU_WD_RST_SRC_ID_SHIFT;
+	if (rs & (1 << ARM_SYSST_GLOB_SWRST_SHIFT))
+		ret |= 1 << OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT;
+
+	return ret;
+}
diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c
new file mode 100644
index 000000000..ffa4a9bec
--- /dev/null
+++ b/arch/arm/mach-omap1/serial.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/arch/arm/mach-omap1/serial.c
+ *
+ * OMAP1 serial support.
+ */
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/mach-types.h>
+
+#include "common.h"
+#include "serial.h"
+#include "mux.h"
+#include "pm.h"
+#include "soc.h"
+
+static struct clk * uart1_ck;
+static struct clk * uart2_ck;
+static struct clk * uart3_ck;
+
+static inline unsigned int omap_serial_in(struct plat_serial8250_port *up,
+					  int offset)
+{
+	offset <<= up->regshift;
+	return (unsigned int)__raw_readb(up->membase + offset);
+}
+
+static inline void omap_serial_outp(struct plat_serial8250_port *p, int offset,
+				    int value)
+{
+	offset <<= p->regshift;
+	__raw_writeb(value, p->membase + offset);
+}
+
+/*
+ * Internal UARTs need to be initialized for the 8250 autoconfig to work
+ * properly. Note that the TX watermark initialization may not be needed
+ * once the 8250.c watermark handling code is merged.
+ */
+static void __init omap_serial_reset(struct plat_serial8250_port *p)
+{
+	omap_serial_outp(p, UART_OMAP_MDR1,
+			UART_OMAP_MDR1_DISABLE);	/* disable UART */
+	omap_serial_outp(p, UART_OMAP_SCR, 0x08);	/* TX watermark */
+	omap_serial_outp(p, UART_OMAP_MDR1,
+			UART_OMAP_MDR1_16X_MODE);	/* enable UART */
+
+	if (!cpu_is_omap15xx()) {
+		omap_serial_outp(p, UART_OMAP_SYSC, 0x01);
+		while (!(omap_serial_in(p, UART_OMAP_SYSC) & 0x01));
+	}
+}
+
+static struct plat_serial8250_port serial_platform_data[] = {
+	{
+		.mapbase	= OMAP1_UART1_BASE,
+		.irq		= INT_UART1,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP16XX_BASE_BAUD * 16,
+	},
+	{
+		.mapbase	= OMAP1_UART2_BASE,
+		.irq		= INT_UART2,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP16XX_BASE_BAUD * 16,
+	},
+	{
+		.mapbase	= OMAP1_UART3_BASE,
+		.irq		= INT_UART3,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= OMAP16XX_BASE_BAUD * 16,
+	},
+	{ },
+};
+
+static struct platform_device serial_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_PLATFORM,
+	.dev			= {
+		.platform_data	= serial_platform_data,
+	},
+};
+
+/*
+ * Note that on Innovator-1510 UART2 pins conflict with USB2.
+ * By default UART2 does not work on Innovator-1510 if you have
+ * USB OHCI enabled. To use UART2, you must disable USB2 first.
+ */
+void __init omap_serial_init(void)
+{
+	int i;
+
+	if (cpu_is_omap15xx()) {
+		serial_platform_data[0].uartclk = OMAP1510_BASE_BAUD * 16;
+		serial_platform_data[1].uartclk = OMAP1510_BASE_BAUD * 16;
+		serial_platform_data[2].uartclk = OMAP1510_BASE_BAUD * 16;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(serial_platform_data) - 1; i++) {
+		/* Static mapping, never released */
+		serial_platform_data[i].membase =
+			ioremap(serial_platform_data[i].mapbase, SZ_2K);
+		if (!serial_platform_data[i].membase) {
+			printk(KERN_ERR "Could not ioremap uart%i\n", i);
+			continue;
+		}
+		switch (i) {
+		case 0:
+			uart1_ck = clk_get(NULL, "uart1_ck");
+			if (IS_ERR(uart1_ck))
+				printk("Could not get uart1_ck\n");
+			else {
+				clk_prepare_enable(uart1_ck);
+				if (cpu_is_omap15xx())
+					clk_set_rate(uart1_ck, 12000000);
+			}
+			break;
+		case 1:
+			uart2_ck = clk_get(NULL, "uart2_ck");
+			if (IS_ERR(uart2_ck))
+				printk("Could not get uart2_ck\n");
+			else {
+				clk_prepare_enable(uart2_ck);
+				if (cpu_is_omap15xx())
+					clk_set_rate(uart2_ck, 12000000);
+				else
+					clk_set_rate(uart2_ck, 48000000);
+			}
+			break;
+		case 2:
+			uart3_ck = clk_get(NULL, "uart3_ck");
+			if (IS_ERR(uart3_ck))
+				printk("Could not get uart3_ck\n");
+			else {
+				clk_prepare_enable(uart3_ck);
+				if (cpu_is_omap15xx())
+					clk_set_rate(uart3_ck, 12000000);
+			}
+			break;
+		}
+		omap_serial_reset(&serial_platform_data[i]);
+	}
+}
+
+#ifdef CONFIG_OMAP_SERIAL_WAKE
+
+static irqreturn_t omap_serial_wake_interrupt(int irq, void *dev_id)
+{
+	/* Need to do something with serial port right after wake-up? */
+	return IRQ_HANDLED;
+}
+
+/*
+ * Reroutes serial RX lines to GPIO lines for the duration of
+ * sleep to allow waking up the device from serial port even
+ * in deep sleep.
+ */
+void omap_serial_wake_trigger(int enable)
+{
+	if (!cpu_is_omap16xx())
+		return;
+
+	if (uart1_ck != NULL) {
+		if (enable)
+			omap_cfg_reg(V14_16XX_GPIO37);
+		else
+			omap_cfg_reg(V14_16XX_UART1_RX);
+	}
+	if (uart2_ck != NULL) {
+		if (enable)
+			omap_cfg_reg(R9_16XX_GPIO18);
+		else
+			omap_cfg_reg(R9_16XX_UART2_RX);
+	}
+	if (uart3_ck != NULL) {
+		if (enable)
+			omap_cfg_reg(L14_16XX_GPIO49);
+		else
+			omap_cfg_reg(L14_16XX_UART3_RX);
+	}
+}
+
+static void __init omap_serial_set_port_wakeup(int idx)
+{
+	struct gpio_desc *d;
+	int ret;
+
+	d = gpiod_get_index(NULL, "wakeup", idx, GPIOD_IN);
+	if (IS_ERR(d)) {
+		pr_err("Unable to get UART wakeup GPIO descriptor\n");
+		return;
+	}
+	ret = request_irq(gpiod_to_irq(d), &omap_serial_wake_interrupt,
+			  IRQF_TRIGGER_RISING, "serial wakeup", NULL);
+	if (ret) {
+		gpiod_put(d);
+		pr_err("No interrupt for UART%d wake GPIO\n", idx + 1);
+		return;
+	}
+	enable_irq_wake(gpiod_to_irq(d));
+}
+
+
+int __init omap_serial_wakeup_init(void)
+{
+	if (!cpu_is_omap16xx())
+		return 0;
+
+	if (uart1_ck != NULL)
+		omap_serial_set_port_wakeup(0);
+	if (uart2_ck != NULL)
+		omap_serial_set_port_wakeup(1);
+	if (uart3_ck != NULL)
+		omap_serial_set_port_wakeup(2);
+
+	return 0;
+}
+
+#endif	/* CONFIG_OMAP_SERIAL_WAKE */
+
+static int __init omap_init(void)
+{
+	if (!cpu_class_is_omap1())
+		return -ENODEV;
+
+	return platform_device_register(&serial_device);
+}
+arch_initcall(omap_init);
diff --git a/arch/arm/mach-omap1/serial.h b/arch/arm/mach-omap1/serial.h
new file mode 100644
index 000000000..4700e384c
--- /dev/null
+++ b/arch/arm/mach-omap1/serial.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2009 Texas Instruments
+ * Added OMAP4 support- Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ASM_ARCH_SERIAL_H
+#define __ASM_ARCH_SERIAL_H
+
+#include <linux/init.h>
+
+/*
+ * Memory entry used for the DEBUG_LL UART configuration, relative to
+ * start of RAM. See also uncompress.h and debug-macro.S.
+ *
+ * Note that using a memory location for storing the UART configuration
+ * has at least two limitations:
+ *
+ * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the
+ *    uncompress code could then partially overwrite itself
+ * 2. We assume printascii is called at least once before paging_init,
+ *    and addruart has a chance to read OMAP_UART_INFO
+ */
+#define OMAP_UART_INFO_OFS	0x3ffc
+
+#define OMAP_PORT_SHIFT		2
+#define OMAP7XX_PORT_SHIFT	0
+
+#define OMAP1510_BASE_BAUD	(12000000/16)
+#define OMAP16XX_BASE_BAUD	(48000000/16)
+
+/*
+ * DEBUG_LL port encoding stored into the UART1 scratchpad register by
+ * decomp_setup in uncompress.h
+ */
+#define OMAP1UART1		11
+#define OMAP1UART2		12
+#define OMAP1UART3		13
+
+#ifndef __ASSEMBLER__
+extern void omap_serial_init(void);
+#endif
+
+#endif
diff --git a/arch/arm/mach-omap1/sleep.S b/arch/arm/mach-omap1/sleep.S
new file mode 100644
index 000000000..6192f52d5
--- /dev/null
+++ b/arch/arm/mach-omap1/sleep.S
@@ -0,0 +1,290 @@
+/*
+ * linux/arch/arm/mach-omap1/sleep.S
+ *
+ * Low-level OMAP7XX/1510/1610 sleep/wakeUp support
+ *
+ * Initial SA1110 code:
+ * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
+ *
+ * Adapted for PXA by Nicolas Pitre:
+ * Copyright (c) 2002 Monta Vista Software, Inc.
+ *
+ * Support for OMAP1510/1610 by Dirk Behme <dirk.behme@de.bosch.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.
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/assembler.h>
+
+#include "hardware.h"
+
+#include "iomap.h"
+#include "pm.h"
+
+		.text
+
+
+/*
+ * Forces OMAP into deep sleep state
+ *
+ * omapXXXX_cpu_suspend()
+ *
+ * The values of the registers ARM_IDLECT1 and ARM_IDLECT2 are passed
+ * as arg0 and arg1 from caller. arg0 is stored in register r0 and arg1
+ * in register r1.
+ *
+ * Note: This code get's copied to internal SRAM at boot. When the OMAP
+ *	 wakes up it continues execution at the point it went to sleep.
+ *
+ * Note: Because of errata work arounds we have processor specific functions
+ *       here. They are mostly the same, but slightly different.
+ *
+ */
+
+#ifdef CONFIG_ARCH_OMAP15XX
+	.align	3
+ENTRY(omap1510_cpu_suspend)
+
+	@ save registers on stack
+	stmfd	sp!, {r0 - r12, lr}
+
+	@ load base address of Traffic Controller
+	mov	r4, #TCMIF_ASM_BASE & 0xff000000
+	orr	r4, r4, #TCMIF_ASM_BASE & 0x00ff0000
+	orr	r4, r4, #TCMIF_ASM_BASE & 0x0000ff00
+
+	@ work around errata of OMAP1510 PDE bit for TC shut down
+	@ clear PDE bit
+	ldr	r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+	bic	r5, r5, #PDE_BIT & 0xff
+	str	r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+
+	@ set PWD_EN bit
+	and	r5, r5, #PWD_EN_BIT & 0xff
+	str	r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+
+	@ prepare to put SDRAM into self-refresh manually
+	ldr	r5, [r4, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
+	orr	r5, r5, #SELF_REFRESH_MODE & 0xff000000
+	orr	r5, r5, #SELF_REFRESH_MODE & 0x000000ff
+	str	r5, [r4, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
+
+	@ prepare to put EMIFS to Sleep
+	ldr	r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+	orr	r5, r5, #IDLE_EMIFS_REQUEST & 0xff
+	str	r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+
+	@ load base address of ARM_IDLECT1 and ARM_IDLECT2
+	mov	r4, #CLKGEN_REG_ASM_BASE & 0xff000000
+	orr	r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
+	orr	r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
+
+	@ turn off clock domains
+	mov	r5, #OMAP1510_IDLE_CLOCK_DOMAINS & 0xff
+	orr	r5, r5, #OMAP1510_IDLE_CLOCK_DOMAINS & 0xff00
+	strh	r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
+
+	@ request ARM idle
+	mov	r3, #OMAP1510_DEEP_SLEEP_REQUEST & 0xff
+	orr	r3, r3, #OMAP1510_DEEP_SLEEP_REQUEST & 0xff00
+	strh	r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
+
+	mov	r5, #IDLE_WAIT_CYCLES & 0xff
+	orr	r5, r5, #IDLE_WAIT_CYCLES & 0xff00
+l_1510_2:
+	subs	r5, r5, #1
+	bne	l_1510_2
+/*
+ * Let's wait for the next wake up event to wake us up. r0 can't be
+ * used here because r0 holds ARM_IDLECT1
+ */
+	mov	r2, #0
+	mcr	p15, 0, r2, c7, c0, 4		@ wait for interrupt
+/*
+ * omap1510_cpu_suspend()'s resume point.
+ *
+ * It will just start executing here, so we'll restore stuff from the
+ * stack, reset the ARM_IDLECT1 and ARM_IDLECT2.
+ */
+	strh	r1, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
+	strh	r0, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
+
+	@ restore regs and return
+	ldmfd	sp!, {r0 - r12, pc}
+
+ENTRY(omap1510_cpu_suspend_sz)
+	.word	. - omap1510_cpu_suspend
+#endif /* CONFIG_ARCH_OMAP15XX */
+
+#if defined(CONFIG_ARCH_OMAP16XX)
+	.align	3
+ENTRY(omap1610_cpu_suspend)
+
+	@ save registers on stack
+	stmfd	sp!, {r0 - r12, lr}
+
+	@ Drain write cache
+	mov	r4, #0
+	mcr	p15, 0, r0, c7, c10, 4
+	nop
+
+	@ Load base address of Traffic Controller
+	mov	r6, #TCMIF_ASM_BASE & 0xff000000
+	orr	r6, r6, #TCMIF_ASM_BASE & 0x00ff0000
+	orr	r6, r6, #TCMIF_ASM_BASE & 0x0000ff00
+
+	@ Prepare to put SDRAM into self-refresh manually
+	ldr	r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
+	orr	r9, r7, #SELF_REFRESH_MODE & 0xff000000
+	orr	r9, r9, #SELF_REFRESH_MODE & 0x000000ff
+	str	r9, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
+
+	@ Prepare to put EMIFS to Sleep
+	ldr	r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+	orr	r9, r8, #IDLE_EMIFS_REQUEST & 0xff
+	str	r9, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+
+	@ Load base address of ARM_IDLECT1 and ARM_IDLECT2
+	mov	r4, #CLKGEN_REG_ASM_BASE & 0xff000000
+	orr	r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
+	orr	r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
+
+	@ Turn off clock domains
+	@ Do not disable PERCK (0x04)
+	mov	r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff
+	orr	r5, r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff00
+	strh	r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
+
+	@ Request ARM idle
+	mov	r3, #OMAP1610_IDLECT1_SLEEP_VAL & 0xff
+	orr	r3, r3, #OMAP1610_IDLECT1_SLEEP_VAL & 0xff00
+	strh	r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
+
+/*
+ * Let's wait for the next wake up event to wake us up. r0 can't be
+ * used here because r0 holds ARM_IDLECT1
+ */
+	mov	r2, #0
+	mcr	p15, 0, r2, c7, c0, 4		@ wait for interrupt
+
+	@ Errata (HEL3SU467, section 1.4.4) specifies nop-instructions
+	@ according to this formula:
+	@ 2 + (4*DPLL_MULT)/DPLL_DIV/ARMDIV
+	@ Max DPLL_MULT = 18
+	@ DPLL_DIV = 1
+	@ ARMDIV = 1
+	@ => 74 nop-instructions
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop	@10
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop	@20
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop	@30
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop	@40
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop	@50
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop	@60
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop	@70
+	nop
+	nop
+	nop
+	nop	@74
+/*
+ * omap1610_cpu_suspend()'s resume point.
+ *
+ * It will just start executing here, so we'll restore stuff from the
+ * stack.
+ */
+	@ Restore the ARM_IDLECT1 and ARM_IDLECT2.
+	strh	r1, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
+	strh	r0, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
+
+	@ Restore EMIFF controls
+	str	r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
+	str	r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
+
+	@ Restore regs and return
+	ldmfd	sp!, {r0 - r12, pc}
+
+ENTRY(omap1610_cpu_suspend_sz)
+	.word	. - omap1610_cpu_suspend
+#endif /* CONFIG_ARCH_OMAP16XX */
diff --git a/arch/arm/mach-omap1/soc.h b/arch/arm/mach-omap1/soc.h
new file mode 100644
index 000000000..5fb57fdd9
--- /dev/null
+++ b/arch/arm/mach-omap1/soc.h
@@ -0,0 +1,6 @@
+/*
+ * We can move linux/soc/ti/omap1-soc.h here once the drivers are fixed
+ */
+#include "hardware.h"
+#include "irqs.h"
+#include <asm/irq.h>
diff --git a/arch/arm/mach-omap1/sram-init.c b/arch/arm/mach-omap1/sram-init.c
new file mode 100644
index 000000000..736a72a2b
--- /dev/null
+++ b/arch/arm/mach-omap1/sram-init.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP SRAM detection and management
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Written by Tony Lindgren <tony@atomide.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 "sram.h"
+
+#define OMAP1_SRAM_PA		0x20000000
+#define SRAM_BOOTLOADER_SZ	0x80
+#define ROUND_DOWN(value, boundary)	((value) & (~((boundary) - 1)))
+
+static void __iomem *omap_sram_base;
+static unsigned long omap_sram_start;
+static unsigned long omap_sram_skip;
+static unsigned long omap_sram_size;
+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 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.
+ * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early.
+ */
+static void __init omap_detect_and_map_sram(void)
+{
+	unsigned long base;
+	int pages;
+
+	omap_sram_skip = SRAM_BOOTLOADER_SZ;
+	omap_sram_start = OMAP1_SRAM_PA;
+
+	if (cpu_is_omap15xx())
+		omap_sram_size = 0x30000;	/* 192K */
+	else if (cpu_is_omap1610() || cpu_is_omap1611() ||
+			cpu_is_omap1621() || cpu_is_omap1710())
+		omap_sram_size = 0x4000;	/* 16K */
+	else {
+		pr_err("Could not detect SRAM size\n");
+		omap_sram_size = 0x4000;
+	}
+
+	omap_sram_start = ROUND_DOWN(omap_sram_start, PAGE_SIZE);
+	omap_sram_base = __arm_ioremap_exec(omap_sram_start, omap_sram_size, 1);
+	if (!omap_sram_base) {
+		pr_err("SRAM: Could not map\n");
+		return;
+	}
+
+	omap_sram_ceil = omap_sram_base + omap_sram_size;
+
+	/*
+	 * 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 (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl);
+
+void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
+{
+	BUG_ON(!_omap_sram_reprogram_clock);
+	_omap_sram_reprogram_clock(dpllctl, ckctl);
+}
+
+int __init omap1_sram_init(void)
+{
+	omap_detect_and_map_sram();
+	_omap_sram_reprogram_clock =
+			omap_sram_push(omap1_sram_reprogram_clock,
+					omap1_sram_reprogram_clock_sz);
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap1/sram.S b/arch/arm/mach-omap1/sram.S
new file mode 100644
index 000000000..89f4dc1b7
--- /dev/null
+++ b/arch/arm/mach-omap1/sram.S
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * linux/arch/arm/plat-omap/sram-fn.S
+ *
+ * Functions that need to be run in internal SRAM
+ */
+
+#include <linux/linkage.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <asm/assembler.h>
+
+#include "hardware.h"
+#include "iomap.h"
+
+	.text
+
+/*
+ * Reprograms ULPD and CKCTL.
+ */
+	.align	3
+ENTRY(omap1_sram_reprogram_clock)
+	stmfd	sp!, {r0 - r12, lr}		@ save registers on stack
+
+	mov	r2, #OMAP1_IO_ADDRESS(DPLL_CTL) & 0xff000000
+	orr	r2, r2, #OMAP1_IO_ADDRESS(DPLL_CTL) & 0x00ff0000
+	orr	r2, r2, #OMAP1_IO_ADDRESS(DPLL_CTL) & 0x0000ff00
+
+	mov	r3, #OMAP1_IO_ADDRESS(ARM_CKCTL) & 0xff000000
+	orr	r3, r3, #OMAP1_IO_ADDRESS(ARM_CKCTL) & 0x00ff0000
+	orr	r3, r3, #OMAP1_IO_ADDRESS(ARM_CKCTL) & 0x0000ff00
+
+	tst	r0, #1 << 4			@ want lock mode?
+	beq	newck				@ nope
+	bic	r0, r0, #1 << 4			@ else clear lock bit
+	strh	r0, [r2]			@ set dpll into bypass mode
+	orr	r0, r0, #1 << 4			@ set lock bit again
+
+newck:
+	strh	r1, [r3]			@ write new ckctl value
+	strh	r0, [r2]			@ write new dpll value
+
+	mov	r4, #0x0700			@ let the clocks settle
+	orr	r4, r4, #0x00ff
+delay:	sub	r4, r4, #1
+	cmp	r4, #0
+	bne	delay
+
+lock:	ldrh	r4, [r2], #0			@ read back dpll value
+	tst	r0, #1 << 4			@ want lock mode?
+	beq	out				@ nope
+	tst	r4, #1 << 0			@ dpll rate locked?
+	beq	lock				@ try again
+
+out:
+	ldmfd	sp!, {r0 - r12, pc}		@ restore regs and return
+ENTRY(omap1_sram_reprogram_clock_sz)
+	.word	. - omap1_sram_reprogram_clock
diff --git a/arch/arm/mach-omap1/sram.h b/arch/arm/mach-omap1/sram.h
new file mode 100644
index 000000000..f45e6dd6d
--- /dev/null
+++ b/arch/arm/mach-omap1/sram.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+extern void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl);
+
+int omap1_sram_init(void);
+void *omap_sram_push(void *funcp, unsigned long size);
+
+/* Do not use these */
+extern void omap1_sram_reprogram_clock(u32 ckctl, u32 dpllctl);
+extern unsigned long omap1_sram_reprogram_clock_sz;
diff --git a/arch/arm/mach-omap1/tc.h b/arch/arm/mach-omap1/tc.h
new file mode 100644
index 000000000..243454bc0
--- /dev/null
+++ b/arch/arm/mach-omap1/tc.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * OMAP Traffic Controller
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ */
+
+#ifndef __ASM_ARCH_TC_H
+#define __ASM_ARCH_TC_H
+
+#define TCMIF_BASE		0xfffecc00
+#define OMAP_TC_OCPT1_PRIOR	(TCMIF_BASE + 0x00)
+#define OMAP_TC_EMIFS_PRIOR	(TCMIF_BASE + 0x04)
+#define OMAP_TC_EMIFF_PRIOR	(TCMIF_BASE + 0x08)
+#define EMIFS_CONFIG		(TCMIF_BASE + 0x0c)
+#define EMIFS_CS0_CONFIG	(TCMIF_BASE + 0x10)
+#define EMIFS_CS1_CONFIG	(TCMIF_BASE + 0x14)
+#define EMIFS_CS2_CONFIG	(TCMIF_BASE + 0x18)
+#define EMIFS_CS3_CONFIG	(TCMIF_BASE + 0x1c)
+#define EMIFF_SDRAM_CONFIG	(TCMIF_BASE + 0x20)
+#define EMIFF_MRS		(TCMIF_BASE + 0x24)
+#define TC_TIMEOUT1		(TCMIF_BASE + 0x28)
+#define TC_TIMEOUT2		(TCMIF_BASE + 0x2c)
+#define TC_TIMEOUT3		(TCMIF_BASE + 0x30)
+#define TC_ENDIANISM		(TCMIF_BASE + 0x34)
+#define EMIFF_SDRAM_CONFIG_2	(TCMIF_BASE + 0x3c)
+#define EMIF_CFG_DYNAMIC_WS	(TCMIF_BASE + 0x40)
+#define EMIFS_ACS0		(TCMIF_BASE + 0x50)
+#define EMIFS_ACS1		(TCMIF_BASE + 0x54)
+#define EMIFS_ACS2		(TCMIF_BASE + 0x58)
+#define EMIFS_ACS3		(TCMIF_BASE + 0x5c)
+#define OMAP_TC_OCPT2_PRIOR	(TCMIF_BASE + 0xd0)
+
+/* external EMIFS chipselect regions */
+#define	OMAP_CS0_PHYS		0x00000000
+#define	OMAP_CS0_SIZE		SZ_64M
+
+#define	OMAP_CS1_PHYS		0x04000000
+#define	OMAP_CS1_SIZE		SZ_64M
+
+#define	OMAP_CS1A_PHYS		OMAP_CS1_PHYS
+#define	OMAP_CS1A_SIZE		SZ_32M
+
+#define	OMAP_CS1B_PHYS		(OMAP_CS1A_PHYS + OMAP_CS1A_SIZE)
+#define	OMAP_CS1B_SIZE		SZ_32M
+
+#define	OMAP_CS2_PHYS		0x08000000
+#define	OMAP_CS2_SIZE		SZ_64M
+
+#define	OMAP_CS2A_PHYS		OMAP_CS2_PHYS
+#define	OMAP_CS2A_SIZE		SZ_32M
+
+#define	OMAP_CS2B_PHYS		(OMAP_CS2A_PHYS + OMAP_CS2A_SIZE)
+#define	OMAP_CS2B_SIZE		SZ_32M
+
+#define	OMAP_CS3_PHYS		0x0c000000
+#define	OMAP_CS3_SIZE		SZ_64M
+
+#ifndef	__ASSEMBLER__
+
+/* EMIF Slow Interface Configuration Register */
+#define OMAP_EMIFS_CONFIG_FR		(1 << 4)
+#define OMAP_EMIFS_CONFIG_PDE		(1 << 3)
+#define OMAP_EMIFS_CONFIG_PWD_EN	(1 << 2)
+#define OMAP_EMIFS_CONFIG_BM		(1 << 1)
+#define OMAP_EMIFS_CONFIG_WP		(1 << 0)
+
+#define EMIFS_CCS(n)		(EMIFS_CS0_CONFIG + (4 * (n)))
+#define EMIFS_ACS(n)		(EMIFS_ACS0 + (4 * (n)))
+
+#endif	/* __ASSEMBLER__ */
+
+#endif	/* __ASM_ARCH_TC_H */
diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
new file mode 100644
index 000000000..d5e127851
--- /dev/null
+++ b/arch/arm/mach-omap1/time.c
@@ -0,0 +1,234 @@
+/*
+ * linux/arch/arm/mach-omap1/time.c
+ *
+ * OMAP Timers
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Partial timer rewrite and additional dynamic tick timer support by
+ * Tony Lindgen <tony@atomide.com> and
+ * Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *
+ * MPU timer code based on the older MPU timer code for OMAP
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: Greg Lonnon <glonnon@ridgerun.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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/io.h>
+#include <linux/sched_clock.h>
+
+#include <asm/irq.h>
+
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+
+#include "hardware.h"
+#include "mux.h"
+#include "iomap.h"
+#include "common.h"
+#include "clock.h"
+
+#ifdef CONFIG_OMAP_MPU_TIMER
+
+#define OMAP_MPU_TIMER_BASE		OMAP_MPU_TIMER1_BASE
+#define OMAP_MPU_TIMER_OFFSET		0x100
+
+typedef struct {
+	u32 cntl;			/* CNTL_TIMER, R/W */
+	u32 load_tim;			/* LOAD_TIM,   W */
+	u32 read_tim;			/* READ_TIM,   R */
+} omap_mpu_timer_regs_t;
+
+#define omap_mpu_timer_base(n)							\
+((omap_mpu_timer_regs_t __iomem *)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE +	\
+				 (n)*OMAP_MPU_TIMER_OFFSET))
+
+static inline unsigned long notrace omap_mpu_timer_read(int nr)
+{
+	omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
+	return readl(&timer->read_tim);
+}
+
+static inline void omap_mpu_set_autoreset(int nr)
+{
+	omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
+
+	writel(readl(&timer->cntl) | MPU_TIMER_AR, &timer->cntl);
+}
+
+static inline void omap_mpu_remove_autoreset(int nr)
+{
+	omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
+
+	writel(readl(&timer->cntl) & ~MPU_TIMER_AR, &timer->cntl);
+}
+
+static inline void omap_mpu_timer_start(int nr, unsigned long load_val,
+					int autoreset)
+{
+	omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
+	unsigned int timerflags = MPU_TIMER_CLOCK_ENABLE | MPU_TIMER_ST;
+
+	if (autoreset)
+		timerflags |= MPU_TIMER_AR;
+
+	writel(MPU_TIMER_CLOCK_ENABLE, &timer->cntl);
+	udelay(1);
+	writel(load_val, &timer->load_tim);
+        udelay(1);
+	writel(timerflags, &timer->cntl);
+}
+
+static inline void omap_mpu_timer_stop(int nr)
+{
+	omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(nr);
+
+	writel(readl(&timer->cntl) & ~MPU_TIMER_ST, &timer->cntl);
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * MPU timer 1 ... count down to zero, interrupt, reload
+ * ---------------------------------------------------------------------------
+ */
+static int omap_mpu_set_next_event(unsigned long cycles,
+				   struct clock_event_device *evt)
+{
+	omap_mpu_timer_start(0, cycles, 0);
+	return 0;
+}
+
+static int omap_mpu_set_oneshot(struct clock_event_device *evt)
+{
+	omap_mpu_timer_stop(0);
+	omap_mpu_remove_autoreset(0);
+	return 0;
+}
+
+static int omap_mpu_set_periodic(struct clock_event_device *evt)
+{
+	omap_mpu_set_autoreset(0);
+	return 0;
+}
+
+static struct clock_event_device clockevent_mpu_timer1 = {
+	.name			= "mpu_timer1",
+	.features		= CLOCK_EVT_FEAT_PERIODIC |
+				  CLOCK_EVT_FEAT_ONESHOT,
+	.set_next_event		= omap_mpu_set_next_event,
+	.set_state_periodic	= omap_mpu_set_periodic,
+	.set_state_oneshot	= omap_mpu_set_oneshot,
+};
+
+static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *evt = &clockevent_mpu_timer1;
+
+	evt->event_handler(evt);
+
+	return IRQ_HANDLED;
+}
+
+static __init void omap_init_mpu_timer(unsigned long rate)
+{
+	if (request_irq(INT_TIMER1, omap_mpu_timer1_interrupt,
+			IRQF_TIMER | IRQF_IRQPOLL, "mpu_timer1", NULL))
+		pr_err("Failed to request irq %d (mpu_timer1)\n", INT_TIMER1);
+	omap_mpu_timer_start(0, (rate / HZ) - 1, 1);
+
+	clockevent_mpu_timer1.cpumask = cpumask_of(0);
+	clockevents_config_and_register(&clockevent_mpu_timer1, rate,
+					1, -1);
+}
+
+
+/*
+ * ---------------------------------------------------------------------------
+ * MPU timer 2 ... free running 32-bit clock source and scheduler clock
+ * ---------------------------------------------------------------------------
+ */
+
+static u64 notrace omap_mpu_read_sched_clock(void)
+{
+	return ~omap_mpu_timer_read(1);
+}
+
+static void __init omap_init_clocksource(unsigned long rate)
+{
+	omap_mpu_timer_regs_t __iomem *timer = omap_mpu_timer_base(1);
+	static char err[] __initdata = KERN_ERR
+			"%s: can't register clocksource!\n";
+
+	omap_mpu_timer_start(1, ~0, 1);
+	sched_clock_register(omap_mpu_read_sched_clock, 32, rate);
+
+	if (clocksource_mmio_init(&timer->read_tim, "mpu_timer2", rate,
+			300, 32, clocksource_mmio_readl_down))
+		printk(err, "mpu_timer2");
+}
+
+static void __init omap_mpu_timer_init(void)
+{
+	struct clk	*ck_ref = clk_get(NULL, "ck_ref");
+	unsigned long	rate;
+
+	BUG_ON(IS_ERR(ck_ref));
+
+	rate = clk_get_rate(ck_ref);
+	clk_put(ck_ref);
+
+	/* PTV = 0 */
+	rate /= 2;
+
+	omap_init_mpu_timer(rate);
+	omap_init_clocksource(rate);
+}
+
+#else
+static inline void omap_mpu_timer_init(void)
+{
+	pr_err("Bogus timer, should not happen\n");
+}
+#endif	/* CONFIG_OMAP_MPU_TIMER */
+
+/*
+ * ---------------------------------------------------------------------------
+ * Timer initialization
+ * ---------------------------------------------------------------------------
+ */
+void __init omap1_timer_init(void)
+{
+	omap1_clk_init();
+	omap1_mux_init();
+
+	if (omap_32k_timer_init() != 0)
+		omap_mpu_timer_init();
+}
diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c
new file mode 100644
index 000000000..399e6d840
--- /dev/null
+++ b/arch/arm/mach-omap1/timer.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP1 Dual-Mode Timers - platform device registration
+ *
+ * Contains first level initialization routines which internally
+ * generates timer device information and registers with linux
+ * device model. It also has a low level function to change the timer
+ * input clock source.
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
+ * Tarun Kanti DebBarma <tarun.kanti@ti.com>
+ * Thara Gopinath <thara@ti.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/dmtimer-omap.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <clocksource/timer-ti-dm.h>
+
+#include "soc.h"
+
+#define OMAP1610_GPTIMER1_BASE		0xfffb1400
+#define OMAP1610_GPTIMER2_BASE		0xfffb1c00
+#define OMAP1610_GPTIMER3_BASE		0xfffb2400
+#define OMAP1610_GPTIMER4_BASE		0xfffb2c00
+#define OMAP1610_GPTIMER5_BASE		0xfffb3400
+#define OMAP1610_GPTIMER6_BASE		0xfffb3c00
+#define OMAP1610_GPTIMER7_BASE		0xfffb7400
+#define OMAP1610_GPTIMER8_BASE		0xfffbd400
+
+#define OMAP1_DM_TIMER_COUNT		8
+
+static int omap1_dm_timer_set_src(struct platform_device *pdev,
+				int source)
+{
+	int n = (pdev->id - 1) << 1;
+	u32 l;
+
+	l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n);
+	l |= source << n;
+	omap_writel(l, MOD_CONF_CTRL_1);
+
+	return 0;
+}
+
+static int __init omap1_dm_timer_init(void)
+{
+	int i;
+	int ret;
+	struct dmtimer_platform_data *pdata;
+	struct platform_device *pdev;
+
+	if (!cpu_is_omap16xx())
+		return 0;
+
+	for (i = 1; i <= OMAP1_DM_TIMER_COUNT; i++) {
+		struct resource res[2];
+		u32 base, irq;
+
+		switch (i) {
+		case 1:
+			base = OMAP1610_GPTIMER1_BASE;
+			irq = INT_1610_GPTIMER1;
+			break;
+		case 2:
+			base = OMAP1610_GPTIMER2_BASE;
+			irq = INT_1610_GPTIMER2;
+			break;
+		case 3:
+			base = OMAP1610_GPTIMER3_BASE;
+			irq = INT_1610_GPTIMER3;
+			break;
+		case 4:
+			base = OMAP1610_GPTIMER4_BASE;
+			irq = INT_1610_GPTIMER4;
+			break;
+		case 5:
+			base = OMAP1610_GPTIMER5_BASE;
+			irq = INT_1610_GPTIMER5;
+			break;
+		case 6:
+			base = OMAP1610_GPTIMER6_BASE;
+			irq = INT_1610_GPTIMER6;
+			break;
+		case 7:
+			base = OMAP1610_GPTIMER7_BASE;
+			irq = INT_1610_GPTIMER7;
+			break;
+		case 8:
+			base = OMAP1610_GPTIMER8_BASE;
+			irq = INT_1610_GPTIMER8;
+			break;
+		default:
+			/*
+			 * not supposed to reach here.
+			 * this is to remove warning.
+			 */
+			return -EINVAL;
+		}
+
+		pdev = platform_device_alloc("omap_timer", i);
+		if (!pdev) {
+			pr_err("%s: Failed to device alloc for dmtimer%d\n",
+				__func__, i);
+			return -ENOMEM;
+		}
+
+		memset(res, 0, 2 * sizeof(struct resource));
+		res[0].start = base;
+		res[0].end = base + 0x46;
+		res[0].flags = IORESOURCE_MEM;
+		res[1].start = irq;
+		res[1].end = irq;
+		res[1].flags = IORESOURCE_IRQ;
+		ret = platform_device_add_resources(pdev, res,
+				ARRAY_SIZE(res));
+		if (ret) {
+			dev_err(&pdev->dev, "%s: Failed to add resources.\n",
+				__func__);
+			goto err_free_pdev;
+		}
+
+		pdata = kzalloc_obj(*pdata);
+		if (!pdata) {
+			ret = -ENOMEM;
+			goto err_free_pdata;
+		}
+
+		pdata->set_timer_src = omap1_dm_timer_set_src;
+		pdata->timer_capability = OMAP_TIMER_ALWON |
+				OMAP_TIMER_NEEDS_RESET | OMAP_TIMER_HAS_DSP_IRQ;
+
+		ret = platform_device_add_data(pdev, pdata, sizeof(*pdata));
+		if (ret) {
+			dev_err(&pdev->dev, "%s: Failed to add platform data.\n",
+				__func__);
+			goto err_free_pdata;
+		}
+
+		ret = platform_device_add(pdev);
+		if (ret) {
+			dev_err(&pdev->dev, "%s: Failed to add platform device.\n",
+				__func__);
+			goto err_free_pdata;
+		}
+
+		dev_dbg(&pdev->dev, " Registered.\n");
+	}
+
+	return 0;
+
+err_free_pdata:
+	kfree(pdata);
+
+err_free_pdev:
+	platform_device_put(pdev);
+
+	return ret;
+}
+arch_initcall(omap1_dm_timer_init);
diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
new file mode 100644
index 000000000..f618a6df2
--- /dev/null
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -0,0 +1,282 @@
+/*
+ * linux/arch/arm/mach-omap1/timer32k.c
+ *
+ * OMAP 32K Timer
+ *
+ * Copyright (C) 2004 - 2005 Nokia Corporation
+ * Partial timer rewrite and additional dynamic tick timer support by
+ * Tony Lindgen <tony@atomide.com> and
+ * Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ * OMAP Dual-mode timer framework support by Timo Teras
+ *
+ * MPU timer code based on the older MPU timer code for OMAP
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: Greg Lonnon <glonnon@ridgerun.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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/io.h>
+#include <linux/sched_clock.h>
+
+#include <asm/irq.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+
+#include "hardware.h"
+#include "common.h"
+
+/*
+ * ---------------------------------------------------------------------------
+ * 32KHz OS timer
+ *
+ * This currently works only on 16xx, as 1510 does not have the continuous
+ * 32KHz synchronous timer. The 32KHz synchronous timer is used to keep track
+ * of time in addition to the 32KHz OS timer. Using only the 32KHz OS timer
+ * on 1510 would be possible, but the timer would not be as accurate as
+ * with the 32KHz synchronized timer.
+ * ---------------------------------------------------------------------------
+ */
+
+/* 16xx specific defines */
+#define OMAP1_32K_TIMER_BASE		0xfffb9000
+#define OMAP1_32KSYNC_TIMER_BASE	0xfffbc400
+#define OMAP1_32K_TIMER_CR		0x08
+#define OMAP1_32K_TIMER_TVR		0x00
+#define OMAP1_32K_TIMER_TCR		0x04
+
+#define OMAP_32K_TICKS_PER_SEC		(32768)
+
+/*
+ * TRM says 1 / HZ = ( TVR + 1) / 32768, so TRV = (32768 / HZ) - 1
+ * so with HZ = 128, TVR = 255.
+ */
+#define OMAP_32K_TIMER_TICK_PERIOD	((OMAP_32K_TICKS_PER_SEC / HZ) - 1)
+
+#define JIFFIES_TO_HW_TICKS(nr_jiffies, clock_rate)			\
+				(((nr_jiffies) * (clock_rate)) / HZ)
+
+static inline void omap_32k_timer_write(int val, int reg)
+{
+	omap_writew(val, OMAP1_32K_TIMER_BASE + reg);
+}
+
+static inline void omap_32k_timer_start(unsigned long load_val)
+{
+	if (!load_val)
+		load_val = 1;
+	omap_32k_timer_write(load_val, OMAP1_32K_TIMER_TVR);
+	omap_32k_timer_write(0x0f, OMAP1_32K_TIMER_CR);
+}
+
+static inline void omap_32k_timer_stop(void)
+{
+	omap_32k_timer_write(0x0, OMAP1_32K_TIMER_CR);
+}
+
+#define omap_32k_timer_ack_irq()
+
+static int omap_32k_timer_set_next_event(unsigned long delta,
+					 struct clock_event_device *dev)
+{
+	omap_32k_timer_start(delta);
+
+	return 0;
+}
+
+static int omap_32k_timer_shutdown(struct clock_event_device *evt)
+{
+	omap_32k_timer_stop();
+	return 0;
+}
+
+static int omap_32k_timer_set_periodic(struct clock_event_device *evt)
+{
+	omap_32k_timer_stop();
+	omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD);
+	return 0;
+}
+
+static struct clock_event_device clockevent_32k_timer = {
+	.name			= "32k-timer",
+	.features		= CLOCK_EVT_FEAT_PERIODIC |
+				  CLOCK_EVT_FEAT_ONESHOT,
+	.set_next_event		= omap_32k_timer_set_next_event,
+	.set_state_shutdown	= omap_32k_timer_shutdown,
+	.set_state_periodic	= omap_32k_timer_set_periodic,
+	.set_state_oneshot	= omap_32k_timer_shutdown,
+	.tick_resume		= omap_32k_timer_shutdown,
+};
+
+static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *evt = &clockevent_32k_timer;
+	omap_32k_timer_ack_irq();
+
+	evt->event_handler(evt);
+
+	return IRQ_HANDLED;
+}
+
+static __init void omap_init_32k_timer(void)
+{
+	if (request_irq(INT_OS_TIMER, omap_32k_timer_interrupt,
+			IRQF_TIMER | IRQF_IRQPOLL, "32KHz timer", NULL))
+		pr_err("Failed to request irq %d(32KHz timer)\n", INT_OS_TIMER);
+
+	clockevent_32k_timer.cpumask = cpumask_of(0);
+	clockevents_config_and_register(&clockevent_32k_timer,
+					OMAP_32K_TICKS_PER_SEC, 1, 0xfffffffe);
+}
+
+/* OMAP2_32KSYNCNT_CR_OFF: offset of 32ksync counter register */
+#define OMAP2_32KSYNCNT_REV_OFF		0x0
+#define OMAP2_32KSYNCNT_REV_SCHEME	(0x3 << 30)
+#define OMAP2_32KSYNCNT_CR_OFF_LOW	0x10
+#define OMAP2_32KSYNCNT_CR_OFF_HIGH	0x30
+
+/*
+ * 32KHz clocksource ... always available, on pretty most chips except
+ * OMAP 730 and 1510.  Other timers could be used as clocksources, with
+ * higher resolution in free-running counter modes (e.g. 12 MHz xtal),
+ * but systems won't necessarily want to spend resources that way.
+ */
+static void __iomem *sync32k_cnt_reg;
+
+static u64 notrace omap_32k_read_sched_clock(void)
+{
+	return sync32k_cnt_reg ? readl_relaxed(sync32k_cnt_reg) : 0;
+}
+
+static struct timespec64 persistent_ts;
+static cycles_t cycles;
+static unsigned int persistent_mult, persistent_shift;
+
+/**
+ * omap_read_persistent_clock64 -  Return time from a persistent clock.
+ * @ts: &struct timespec64 for the returned time
+ *
+ * Reads the time from a source which isn't disabled during PM, the
+ * 32k sync timer.  Convert the cycles elapsed since last read into
+ * nsecs and adds to a monotonically increasing timespec64.
+ */
+static void omap_read_persistent_clock64(struct timespec64 *ts)
+{
+	unsigned long long nsecs;
+	cycles_t last_cycles;
+
+	last_cycles = cycles;
+	cycles = sync32k_cnt_reg ? readl_relaxed(sync32k_cnt_reg) : 0;
+
+	nsecs = clocksource_cyc2ns(cycles - last_cycles,
+					persistent_mult, persistent_shift);
+
+	timespec64_add_ns(&persistent_ts, nsecs);
+
+	*ts = persistent_ts;
+}
+
+/**
+ * omap_init_clocksource_32k - setup and register counter 32k as a
+ * kernel clocksource
+ * @vbase: base addr of counter_32k module
+ *
+ * Returns: %0 upon success or negative error code upon failure.
+ *
+ */
+static int __init omap_init_clocksource_32k(void __iomem *vbase)
+{
+	int ret;
+
+	/*
+	 * 32k sync Counter IP register offsets vary between the
+	 * highlander version and the legacy ones.
+	 * The 'SCHEME' bits(30-31) of the revision register is used
+	 * to identify the version.
+	 */
+	if (readl_relaxed(vbase + OMAP2_32KSYNCNT_REV_OFF) &
+						OMAP2_32KSYNCNT_REV_SCHEME)
+		sync32k_cnt_reg = vbase + OMAP2_32KSYNCNT_CR_OFF_HIGH;
+	else
+		sync32k_cnt_reg = vbase + OMAP2_32KSYNCNT_CR_OFF_LOW;
+
+	/*
+	 * 120000 rough estimate from the calculations in
+	 * __clocksource_update_freq_scale.
+	 */
+	clocks_calc_mult_shift(&persistent_mult, &persistent_shift,
+			32768, NSEC_PER_SEC, 120000);
+
+	ret = clocksource_mmio_init(sync32k_cnt_reg, "32k_counter", 32768,
+				250, 32, clocksource_mmio_readl_up);
+	if (ret) {
+		pr_err("32k_counter: can't register clocksource\n");
+		return ret;
+	}
+
+	sched_clock_register(omap_32k_read_sched_clock, 32, 32768);
+	register_persistent_clock(omap_read_persistent_clock64);
+	pr_info("OMAP clocksource: 32k_counter at 32768 Hz\n");
+
+	return 0;
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * Timer initialization
+ * ---------------------------------------------------------------------------
+ */
+int __init omap_32k_timer_init(void)
+{
+	int ret = -ENODEV;
+
+	if (cpu_is_omap16xx()) {
+		void __iomem *base;
+		struct clk *sync32k_ick;
+
+		base = ioremap(OMAP1_32KSYNC_TIMER_BASE, SZ_1K);
+		if (!base) {
+			pr_err("32k_counter: failed to map base addr\n");
+			return -ENODEV;
+		}
+
+		sync32k_ick = clk_get(NULL, "omap_32ksync_ick");
+		if (!IS_ERR(sync32k_ick))
+			clk_prepare_enable(sync32k_ick);
+
+		ret = omap_init_clocksource_32k(base);
+	}
+
+	if (!ret)
+		omap_init_32k_timer();
+
+	return ret;
+}
diff --git a/arch/arm/mach-omap1/usb.c b/arch/arm/mach-omap1/usb.c
new file mode 100644
index 000000000..08d42abc4
--- /dev/null
+++ b/arch/arm/mach-omap1/usb.c
@@ -0,0 +1,687 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Platform level USB initialization for FS USB OTG controller on omap1
+ *
+ * Copyright (C) 2004 Texas Instruments, Inc.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-map-ops.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <asm/irq.h>
+
+#include "hardware.h"
+#include "mux.h"
+#include "usb.h"
+#include "common.h"
+
+/* These routines should handle the standard chip-specific modes
+ * for usb0/1/2 ports, covering basic mux and transceiver setup.
+ *
+ * Some board-*.c files will need to set up additional mux options,
+ * like for suspend handling, vbus sensing, GPIOs, and the D+ pullup.
+ */
+
+/* TESTED ON:
+ *  - 1611B H2 (with usb1 mini-AB) using standard Mini-B or OTG cables
+ *  - 5912 OSK OHCI (with usb0 standard-A), standard A-to-B cables
+ *  - 5912 OSK UDC, with *nonstandard* A-to-A cable
+ *  - 1510 Innovator UDC with bundled usb0 cable
+ *  - 1510 Innovator OHCI with bundled usb1/usb2 cable
+ *  - 1510 Innovator OHCI with custom usb0 cable, feeding 5V VBUS
+ *  - 1710 custom development board using alternate pin group
+ *  - 1710 H3 (with usb1 mini-AB) using standard Mini-B or OTG cables
+ */
+
+#define INT_USB_IRQ_GEN		IH2_BASE + 20
+#define INT_USB_IRQ_NISO	IH2_BASE + 30
+#define INT_USB_IRQ_ISO		IH2_BASE + 29
+#define INT_USB_IRQ_HGEN	INT_USB_HHC_1
+#define INT_USB_IRQ_OTG		IH2_BASE + 8
+
+#ifdef	CONFIG_ARCH_OMAP_OTG
+
+static void __init
+omap_otg_init(struct omap_usb_config *config)
+{
+	u32		syscon;
+	int		alt_pingroup = 0;
+	u16		w;
+
+	/* NOTE:  no bus or clock setup (yet?) */
+
+	syscon = omap_readl(OTG_SYSCON_1) & 0xffff;
+	if (!(syscon & OTG_RESET_DONE))
+		pr_debug("USB resets not complete?\n");
+
+	//omap_writew(0, OTG_IRQ_EN);
+
+	/* pin muxing and transceiver pinouts */
+	if (config->pins[0] > 2)	/* alt pingroup 2 */
+		alt_pingroup = 1;
+	syscon |= config->usb0_init(config->pins[0], is_usb0_device(config));
+	syscon |= config->usb1_init(config->pins[1]);
+	syscon |= config->usb2_init(config->pins[2], alt_pingroup);
+	pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1));
+	omap_writel(syscon, OTG_SYSCON_1);
+
+	syscon = config->hmc_mode;
+	syscon |= USBX_SYNCHRO | (4 << 16) /* B_ASE0_BRST */;
+#ifdef	CONFIG_USB_OTG
+	if (config->otg)
+		syscon |= OTG_EN;
+#endif
+	pr_debug("USB_TRANSCEIVER_CTRL = %03x\n",
+		 omap_readl(USB_TRANSCEIVER_CTRL));
+	pr_debug("OTG_SYSCON_2 = %08x\n", omap_readl(OTG_SYSCON_2));
+	omap_writel(syscon, OTG_SYSCON_2);
+
+	printk("USB: hmc %d", config->hmc_mode);
+	if (!alt_pingroup)
+		pr_cont(", usb2 alt %d wires", config->pins[2]);
+	else if (config->pins[0])
+		pr_cont(", usb0 %d wires%s", config->pins[0],
+			is_usb0_device(config) ? " (dev)" : "");
+	if (config->pins[1])
+		pr_cont(", usb1 %d wires", config->pins[1]);
+	if (!alt_pingroup && config->pins[2])
+		pr_cont(", usb2 %d wires", config->pins[2]);
+	if (config->otg)
+		pr_cont(", Mini-AB on usb%d", config->otg - 1);
+	pr_cont("\n");
+
+	/* leave USB clocks/controllers off until needed */
+	w = omap_readw(ULPD_SOFT_REQ);
+	w &= ~SOFT_USB_CLK_REQ;
+	omap_writew(w, ULPD_SOFT_REQ);
+
+	w = omap_readw(ULPD_CLOCK_CTRL);
+	w &= ~USB_MCLK_EN;
+	w |= DIS_USB_PVCI_CLK;
+	omap_writew(w, ULPD_CLOCK_CTRL);
+
+	syscon = omap_readl(OTG_SYSCON_1);
+	syscon |= HST_IDLE_EN|DEV_IDLE_EN|OTG_IDLE_EN;
+
+#if IS_ENABLED(CONFIG_USB_OMAP)
+	if (config->otg || config->register_dev) {
+		struct platform_device *udc_device = config->udc_device;
+		int status;
+
+		syscon &= ~DEV_IDLE_EN;
+		udc_device->dev.platform_data = config;
+		status = platform_device_register(udc_device);
+		if (status)
+			pr_debug("can't register UDC device, %d\n", status);
+	}
+#endif
+
+#if	IS_ENABLED(CONFIG_USB_OHCI_HCD)
+	if (config->otg || config->register_host) {
+		struct platform_device *ohci_device = config->ohci_device;
+		int status;
+
+		syscon &= ~HST_IDLE_EN;
+		ohci_device->dev.platform_data = config;
+		status = platform_device_register(ohci_device);
+		if (status)
+			pr_debug("can't register OHCI device, %d\n", status);
+	}
+#endif
+
+#ifdef	CONFIG_USB_OTG
+	if (config->otg) {
+		struct platform_device *otg_device = config->otg_device;
+		int status;
+
+		syscon &= ~OTG_IDLE_EN;
+		otg_device->dev.platform_data = config;
+		status = platform_device_register(otg_device);
+		if (status)
+			pr_debug("can't register OTG device, %d\n", status);
+	}
+#endif
+	pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1));
+	omap_writel(syscon, OTG_SYSCON_1);
+}
+
+#else
+static void omap_otg_init(struct omap_usb_config *config) {}
+#endif
+
+#if IS_ENABLED(CONFIG_USB_OMAP)
+
+static struct resource udc_resources[] = {
+	/* order is significant! */
+	{		/* registers */
+		.start		= UDC_BASE,
+		.end		= UDC_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {		/* general IRQ */
+		.start		= INT_USB_IRQ_GEN,
+		.flags		= IORESOURCE_IRQ,
+	}, {		/* PIO IRQ */
+		.start		= INT_USB_IRQ_NISO,
+		.flags		= IORESOURCE_IRQ,
+	}, {		/* SOF IRQ */
+		.start		= INT_USB_IRQ_ISO,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static u64 udc_dmamask = ~(u32)0;
+
+static struct platform_device udc_device = {
+	.name		= "omap_udc",
+	.id		= -1,
+	.dev = {
+		.dma_mask		= &udc_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(udc_resources),
+	.resource	= udc_resources,
+};
+
+static inline void udc_device_init(struct omap_usb_config *pdata)
+{
+	pdata->udc_device = &udc_device;
+}
+
+#else
+
+static inline void udc_device_init(struct omap_usb_config *pdata)
+{
+}
+
+#endif
+
+/* The dmamask must be set for OHCI to work */
+static u64 ohci_dmamask = ~(u32)0;
+
+static struct resource ohci_resources[] = {
+	{
+		.start	= OMAP_OHCI_BASE,
+		.end	= OMAP_OHCI_BASE + 0xff,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_USB_IRQ_HGEN,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ohci_device = {
+	.name			= "ohci",
+	.id			= -1,
+	.dev = {
+		.dma_mask		= &ohci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(ohci_resources),
+	.resource		= ohci_resources,
+};
+
+static inline void ohci_device_init(struct omap_usb_config *pdata)
+{
+	if (!IS_ENABLED(CONFIG_USB_OHCI_HCD))
+		return;
+
+	pdata->ohci_device = &ohci_device;
+	pdata->ocpi_enable = &ocpi_enable;
+}
+
+#if	defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG)
+
+static struct resource otg_resources[] = {
+	/* order is significant! */
+	{
+		.start		= OTG_BASE,
+		.end		= OTG_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= INT_USB_IRQ_OTG,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device otg_device = {
+	.name		= "omap_otg",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(otg_resources),
+	.resource	= otg_resources,
+};
+
+static inline void otg_device_init(struct omap_usb_config *pdata)
+{
+	pdata->otg_device = &otg_device;
+}
+
+#else
+
+static inline void otg_device_init(struct omap_usb_config *pdata)
+{
+}
+
+#endif
+
+static u32 __init omap1_usb0_init(unsigned nwires, unsigned is_device)
+{
+	u32	syscon1 = 0;
+
+	if (nwires == 0) {
+		if (!cpu_is_omap15xx()) {
+			u32 l;
+
+			/* pulldown D+/D- */
+			l = omap_readl(USB_TRANSCEIVER_CTRL);
+			l &= ~(3 << 1);
+			omap_writel(l, USB_TRANSCEIVER_CTRL);
+		}
+		return 0;
+	}
+
+	if (is_device) {
+		omap_cfg_reg(W4_USB_PUEN);
+	}
+
+	if (nwires == 2) {
+		u32 l;
+
+		// omap_cfg_reg(P9_USB_DP);
+		// omap_cfg_reg(R8_USB_DM);
+
+		if (cpu_is_omap15xx()) {
+			/* This works on 1510-Innovator */
+			return 0;
+		}
+
+		/* NOTES:
+		 *  - peripheral should configure VBUS detection!
+		 *  - only peripherals may use the internal D+/D- pulldowns
+		 *  - OTG support on this port not yet written
+		 */
+
+		l = omap_readl(USB_TRANSCEIVER_CTRL);
+		l &= ~(7 << 4);
+		if (!is_device)
+			l |= (3 << 1);
+		omap_writel(l, USB_TRANSCEIVER_CTRL);
+
+		return 3 << 16;
+	}
+
+	/* alternate pin config, external transceiver */
+	if (cpu_is_omap15xx()) {
+		printk(KERN_ERR "no usb0 alt pin config on 15xx\n");
+		return 0;
+	}
+
+	omap_cfg_reg(V6_USB0_TXD);
+	omap_cfg_reg(W9_USB0_TXEN);
+	omap_cfg_reg(W5_USB0_SE0);
+	if (nwires != 3)
+		omap_cfg_reg(Y5_USB0_RCV);
+
+	/* NOTE:  SPEED and SUSP aren't configured here.  OTG hosts
+	 * may be able to use I2C requests to set those bits along
+	 * with VBUS switching and overcurrent detection.
+	 */
+
+	if (nwires != 6) {
+		u32 l;
+
+		l = omap_readl(USB_TRANSCEIVER_CTRL);
+		l &= ~CONF_USB2_UNI_R;
+		omap_writel(l, USB_TRANSCEIVER_CTRL);
+	}
+
+	switch (nwires) {
+	case 3:
+		syscon1 = 2;
+		break;
+	case 4:
+		syscon1 = 1;
+		break;
+	case 6:
+		syscon1 = 3;
+		{
+			u32 l;
+
+			omap_cfg_reg(AA9_USB0_VP);
+			omap_cfg_reg(R9_USB0_VM);
+			l = omap_readl(USB_TRANSCEIVER_CTRL);
+			l |= CONF_USB2_UNI_R;
+			omap_writel(l, USB_TRANSCEIVER_CTRL);
+		}
+		break;
+	default:
+		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
+			0, nwires);
+	}
+
+	return syscon1 << 16;
+}
+
+static u32 __init omap1_usb1_init(unsigned nwires)
+{
+	u32	syscon1 = 0;
+
+	if (!cpu_is_omap15xx() && nwires != 6) {
+		u32 l;
+
+		l = omap_readl(USB_TRANSCEIVER_CTRL);
+		l &= ~CONF_USB1_UNI_R;
+		omap_writel(l, USB_TRANSCEIVER_CTRL);
+	}
+	if (nwires == 0)
+		return 0;
+
+	/* external transceiver */
+	omap_cfg_reg(USB1_TXD);
+	omap_cfg_reg(USB1_TXEN);
+	if (nwires != 3)
+		omap_cfg_reg(USB1_RCV);
+
+	if (cpu_is_omap15xx()) {
+		omap_cfg_reg(USB1_SEO);
+		omap_cfg_reg(USB1_SPEED);
+		// SUSP
+	} else if (cpu_is_omap1610() || cpu_is_omap5912()) {
+		omap_cfg_reg(W13_1610_USB1_SE0);
+		omap_cfg_reg(R13_1610_USB1_SPEED);
+		// SUSP
+	} else if (cpu_is_omap1710()) {
+		omap_cfg_reg(R13_1710_USB1_SE0);
+		// SUSP
+	} else {
+		pr_debug("usb%d cpu unrecognized\n", 1);
+		return 0;
+	}
+
+	switch (nwires) {
+	case 2:
+		goto bad;
+	case 3:
+		syscon1 = 2;
+		break;
+	case 4:
+		syscon1 = 1;
+		break;
+	case 6:
+		syscon1 = 3;
+		omap_cfg_reg(USB1_VP);
+		omap_cfg_reg(USB1_VM);
+		if (!cpu_is_omap15xx()) {
+			u32 l;
+
+			l = omap_readl(USB_TRANSCEIVER_CTRL);
+			l |= CONF_USB1_UNI_R;
+			omap_writel(l, USB_TRANSCEIVER_CTRL);
+		}
+		break;
+	default:
+bad:
+		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
+			1, nwires);
+	}
+
+	return syscon1 << 20;
+}
+
+static u32 __init omap1_usb2_init(unsigned nwires, unsigned alt_pingroup)
+{
+	u32	syscon1 = 0;
+
+	/* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */
+	if (alt_pingroup || nwires == 0)
+		return 0;
+
+	if (!cpu_is_omap15xx() && nwires != 6) {
+		u32 l;
+
+		l = omap_readl(USB_TRANSCEIVER_CTRL);
+		l &= ~CONF_USB2_UNI_R;
+		omap_writel(l, USB_TRANSCEIVER_CTRL);
+	}
+
+	/* external transceiver */
+	if (cpu_is_omap15xx()) {
+		omap_cfg_reg(USB2_TXD);
+		omap_cfg_reg(USB2_TXEN);
+		omap_cfg_reg(USB2_SEO);
+		if (nwires != 3)
+			omap_cfg_reg(USB2_RCV);
+		/* there is no USB2_SPEED */
+	} else if (cpu_is_omap16xx()) {
+		omap_cfg_reg(V6_USB2_TXD);
+		omap_cfg_reg(W9_USB2_TXEN);
+		omap_cfg_reg(W5_USB2_SE0);
+		if (nwires != 3)
+			omap_cfg_reg(Y5_USB2_RCV);
+		// FIXME omap_cfg_reg(USB2_SPEED);
+	} else {
+		pr_debug("usb%d cpu unrecognized\n", 1);
+		return 0;
+	}
+
+	// omap_cfg_reg(USB2_SUSP);
+
+	switch (nwires) {
+	case 2:
+		goto bad;
+	case 3:
+		syscon1 = 2;
+		break;
+	case 4:
+		syscon1 = 1;
+		break;
+	case 5:
+		goto bad;
+	case 6:
+		syscon1 = 3;
+		if (cpu_is_omap15xx()) {
+			omap_cfg_reg(USB2_VP);
+			omap_cfg_reg(USB2_VM);
+		} else {
+			u32 l;
+
+			omap_cfg_reg(AA9_USB2_VP);
+			omap_cfg_reg(R9_USB2_VM);
+			l = omap_readl(USB_TRANSCEIVER_CTRL);
+			l |= CONF_USB2_UNI_R;
+			omap_writel(l, USB_TRANSCEIVER_CTRL);
+		}
+		break;
+	default:
+bad:
+		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
+			2, nwires);
+	}
+
+	return syscon1 << 24;
+}
+
+#ifdef	CONFIG_ARCH_OMAP15XX
+/* OMAP-1510 OHCI has its own MMU for DMA */
+#define OMAP1510_LB_MEMSIZE	32	/* Should be same as SDRAM size */
+#define OMAP1510_LB_CLOCK_DIV	0xfffec10c
+#define OMAP1510_LB_MMU_CTL	0xfffec208
+#define OMAP1510_LB_MMU_LCK	0xfffec224
+#define OMAP1510_LB_MMU_LD_TLB	0xfffec228
+#define OMAP1510_LB_MMU_CAM_H	0xfffec22c
+#define OMAP1510_LB_MMU_CAM_L	0xfffec230
+#define OMAP1510_LB_MMU_RAM_H	0xfffec234
+#define OMAP1510_LB_MMU_RAM_L	0xfffec238
+
+/*
+ * Bus address is physical address, except for OMAP-1510 Local Bus.
+ * OMAP-1510 bus address is translated into a Local Bus address if the
+ * OMAP bus type is lbus.
+ */
+#define OMAP1510_LB_OFFSET	   UL(0x30000000)
+
+/*
+ * OMAP-1510 specific Local Bus clock on/off
+ */
+static int omap_1510_local_bus_power(int on)
+{
+	if (on) {
+		omap_writel((1 << 1) | (1 << 0), OMAP1510_LB_MMU_CTL);
+		udelay(200);
+	} else {
+		omap_writel(0, OMAP1510_LB_MMU_CTL);
+	}
+
+	return 0;
+}
+
+/*
+ * OMAP-1510 specific Local Bus initialization
+ * NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE.
+ *       See also arch/mach-omap/memory.h for __virt_to_dma() and
+ *       __dma_to_virt() which need to match with the physical
+ *       Local Bus address below.
+ */
+static int omap_1510_local_bus_init(void)
+{
+	unsigned int tlb;
+	unsigned long lbaddr, physaddr;
+
+	omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4,
+	       OMAP1510_LB_CLOCK_DIV);
+
+	/* Configure the Local Bus MMU table */
+	for (tlb = 0; tlb < OMAP1510_LB_MEMSIZE; tlb++) {
+		lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET;
+		physaddr = tlb * 0x00100000 + PHYS_OFFSET;
+		omap_writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H);
+		omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc,
+		       OMAP1510_LB_MMU_CAM_L);
+		omap_writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H);
+		omap_writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L);
+		omap_writel(tlb << 4, OMAP1510_LB_MMU_LCK);
+		omap_writel(0x1, OMAP1510_LB_MMU_LD_TLB);
+	}
+
+	/* Enable the walking table */
+	omap_writel(omap_readl(OMAP1510_LB_MMU_CTL) | (1 << 3), OMAP1510_LB_MMU_CTL);
+	udelay(200);
+
+	return 0;
+}
+
+static void omap_1510_local_bus_reset(void)
+{
+	omap_1510_local_bus_power(1);
+	omap_1510_local_bus_init();
+}
+
+/* ULPD_DPLL_CTRL */
+#define DPLL_IOB		(1 << 13)
+#define DPLL_PLL_ENABLE		(1 << 4)
+#define DPLL_LOCK		(1 << 0)
+
+/* ULPD_APLL_CTRL */
+#define APLL_NDPLL_SWITCH	(1 << 0)
+
+static void __init omap_1510_usb_init(struct omap_usb_config *config)
+{
+	unsigned int val;
+	u16 w;
+
+	config->usb0_init(config->pins[0], is_usb0_device(config));
+	config->usb1_init(config->pins[1]);
+	config->usb2_init(config->pins[2], 0);
+
+	val = omap_readl(MOD_CONF_CTRL_0) & ~(0x3f << 1);
+	val |= (config->hmc_mode << 1);
+	omap_writel(val, MOD_CONF_CTRL_0);
+
+	printk("USB: hmc %d", config->hmc_mode);
+	if (config->pins[0])
+		pr_cont(", usb0 %d wires%s", config->pins[0],
+			is_usb0_device(config) ? " (dev)" : "");
+	if (config->pins[1])
+		pr_cont(", usb1 %d wires", config->pins[1]);
+	if (config->pins[2])
+		pr_cont(", usb2 %d wires", config->pins[2]);
+	pr_cont("\n");
+
+	/* use DPLL for 48 MHz function clock */
+	pr_debug("APLL %04x DPLL %04x REQ %04x\n", omap_readw(ULPD_APLL_CTRL),
+			omap_readw(ULPD_DPLL_CTRL), omap_readw(ULPD_SOFT_REQ));
+
+	w = omap_readw(ULPD_APLL_CTRL);
+	w &= ~APLL_NDPLL_SWITCH;
+	omap_writew(w, ULPD_APLL_CTRL);
+
+	w = omap_readw(ULPD_DPLL_CTRL);
+	w |= DPLL_IOB | DPLL_PLL_ENABLE;
+	omap_writew(w, ULPD_DPLL_CTRL);
+
+	w = omap_readw(ULPD_SOFT_REQ);
+	w |= SOFT_UDC_REQ | SOFT_DPLL_REQ;
+	omap_writew(w, ULPD_SOFT_REQ);
+
+	while (!(omap_readw(ULPD_DPLL_CTRL) & DPLL_LOCK))
+		cpu_relax();
+
+#if IS_ENABLED(CONFIG_USB_OMAP)
+	if (config->register_dev) {
+		int status;
+
+		udc_device.dev.platform_data = config;
+		status = platform_device_register(&udc_device);
+		if (status)
+			pr_debug("can't register UDC device, %d\n", status);
+		/* udc driver gates 48MHz by D+ pullup */
+	}
+#endif
+
+	if (IS_ENABLED(CONFIG_USB_OHCI_HCD) && config->register_host) {
+		int status;
+
+		ohci_device.dev.platform_data = config;
+		dma_direct_set_offset(&ohci_device.dev, PHYS_OFFSET,
+				      OMAP1510_LB_OFFSET, (u64)-1);
+		status = platform_device_register(&ohci_device);
+		if (status)
+			pr_debug("can't register OHCI device, %d\n", status);
+		/* hcd explicitly gates 48MHz */
+
+		config->lb_reset = omap_1510_local_bus_reset;
+	}
+}
+
+#else
+static inline void omap_1510_usb_init(struct omap_usb_config *config) {}
+#endif
+
+void __init omap1_usb_init(struct omap_usb_config *_pdata)
+{
+	struct omap_usb_config *pdata;
+
+	pdata = kmemdup(_pdata, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return;
+
+	pdata->usb0_init = omap1_usb0_init;
+	pdata->usb1_init = omap1_usb1_init;
+	pdata->usb2_init = omap1_usb2_init;
+	udc_device_init(pdata);
+	ohci_device_init(pdata);
+	otg_device_init(pdata);
+
+	if (cpu_is_omap16xx())
+		omap_otg_init(pdata);
+	else if (cpu_is_omap15xx())
+		omap_1510_usb_init(pdata);
+	else
+		printk(KERN_ERR "USB: No init for your chip yet\n");
+}
diff --git a/arch/arm/mach-omap1/usb.h b/arch/arm/mach-omap1/usb.h
new file mode 100644
index 000000000..08c9344c4
--- /dev/null
+++ b/arch/arm/mach-omap1/usb.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fixme correct answer depends on hmc_mode,
+ * as does (on omap1) any nonzero value for config->otg port number
+ */
+#include <linux/platform_data/usb-omap1.h>
+#include <linux/soc/ti/omap1-usb.h>
+
+#if IS_ENABLED(CONFIG_USB_OMAP)
+#define	is_usb0_device(config)	1
+#else
+#define	is_usb0_device(config)	0
+#endif
+
+#if IS_ENABLED(CONFIG_USB_SUPPORT)
+void omap1_usb_init(struct omap_usb_config *pdata);
+#else
+static inline void omap1_usb_init(struct omap_usb_config *pdata)
+{
+}
+#endif
+
+#define OMAP1_OHCI_BASE			0xfffba000
+#define OMAP2_OHCI_BASE			0x4805e000
+#define OMAP_OHCI_BASE			OMAP1_OHCI_BASE