diff options
Diffstat (limited to 'arch/arm/mach-omap1/sleep.S')
| -rw-r--r-- | arch/arm/mach-omap1/sleep.S | 192 |
1 files changed, 19 insertions, 173 deletions
diff --git a/arch/arm/mach-omap1/sleep.S b/arch/arm/mach-omap1/sleep.S index abef33d10f0..a908c51839a 100644 --- a/arch/arm/mach-omap1/sleep.S +++ b/arch/arm/mach-omap1/sleep.S @@ -1,7 +1,7 @@ /* * linux/arch/arm/mach-omap1/sleep.S * - * Low-level OMAP730/1510/1610 sleep/wakeUp support + * Low-level OMAP7XX/1510/1610 sleep/wakeUp support * * Initial SA1110 code: * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com> @@ -33,173 +33,16 @@ */ #include <linux/linkage.h> -#include <asm/assembler.h> -#include <asm/arch/io.h> -#include <asm/arch/pm.h> - - .text - -/* - * Forces OMAP into idle state - * - * omapXXXX_idle_loop_suspend() - * - * 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 slightly different configuration values we have - * processor specific functions here. - */ - -#if defined(CONFIG_ARCH_OMAP730) -ENTRY(omap730_idle_loop_suspend) - - stmfd sp!, {r0 - r12, lr} @ save registers on stack - - @ 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 - @ get ARM_IDLECT2 into r2 - ldrh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] - mov r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff - orr r5, r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff00 - strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] - - @ request ARM idle - @ get ARM_IDLECT1 into r1 - ldrh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - orr r3, r1, #OMAP730_IDLE_LOOP_REQUEST & 0xffff - strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - - mov r5, #IDLE_WAIT_CYCLES & 0xff - orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00 -l_730: subs r5, r5, #1 - bne l_730 -/* - * Let's wait for the next clock tick to wake us up. - */ - mov r0, #0 - mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt -/* - * omap730_idle_loop_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. - */ - - @ restore ARM_IDLECT1 and ARM_IDLECT2 and return - @ r1 has ARM_IDLECT1 and r2 still has ARM_IDLECT2 - strh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] - strh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - - ldmfd sp!, {r0 - r12, pc} @ restore regs and return - -ENTRY(omap730_idle_loop_suspend_sz) - .word . - omap730_idle_loop_suspend -#endif /* CONFIG_ARCH_OMAP730 */ - -#ifdef CONFIG_ARCH_OMAP15XX -ENTRY(omap1510_idle_loop_suspend) - - stmfd sp!, {r0 - r12, lr} @ save registers on stack - - @ 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 - @ get ARM_IDLECT2 into r2 - ldrh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] - 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 - @ get ARM_IDLECT1 into r1 - ldrh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - orr r3, r1, #OMAP1510_IDLE_LOOP_REQUEST & 0xffff - strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - - mov r5, #IDLE_WAIT_CYCLES & 0xff - orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00 -l_1510: subs r5, r5, #1 - bne l_1510 -/* - * Let's wait for the next clock tick to wake us up. - */ - mov r0, #0 - mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt -/* - * omap1510_idle_loop_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. - */ - - @ restore ARM_IDLECT1 and ARM_IDLECT2 and return - @ r1 has ARM_IDLECT1 and r2 still has ARM_IDLECT2 - strh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] - strh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - - ldmfd sp!, {r0 - r12, pc} @ restore regs and return -ENTRY(omap1510_idle_loop_suspend_sz) - .word . - omap1510_idle_loop_suspend -#endif /* CONFIG_ARCH_OMAP15XX */ - -#if defined(CONFIG_ARCH_OMAP16XX) -ENTRY(omap1610_idle_loop_suspend) - - stmfd sp!, {r0 - r12, lr} @ save registers on stack - - @ 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 +#include <asm/assembler.h> - @ turn off clock domains - @ get ARM_IDLECT2 into r2 - ldrh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] - mov r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff - orr r5, r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff00 - strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] +#include <mach/hardware.h> - @ request ARM idle - @ get ARM_IDLECT1 into r1 - ldrh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - orr r3, r1, #OMAP1610_IDLE_LOOP_REQUEST & 0xffff - strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] +#include "iomap.h" +#include "pm.h" - mov r5, #IDLE_WAIT_CYCLES & 0xff - orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00 -l_1610: subs r5, r5, #1 - bne l_1610 -/* - * Let's wait for the next clock tick to wake us up. - */ - mov r0, #0 - mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt -/* - * omap1610_idle_loop_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. - */ - - @ restore ARM_IDLECT1 and ARM_IDLECT2 and return - @ r1 has ARM_IDLECT1 and r2 still has ARM_IDLECT2 - strh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] - strh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] - - ldmfd sp!, {r0 - r12, pc} @ restore regs and return + .text -ENTRY(omap1610_idle_loop_suspend_sz) - .word . - omap1610_idle_loop_suspend -#endif /* CONFIG_ARCH_OMAP16XX */ /* * Forces OMAP into deep sleep state @@ -218,8 +61,9 @@ ENTRY(omap1610_idle_loop_suspend_sz) * */ -#if defined(CONFIG_ARCH_OMAP730) -ENTRY(omap730_cpu_suspend) +#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) + .align 3 +ENTRY(omap7xx_cpu_suspend) @ save registers on stack stmfd sp!, {r0 - r12, lr} @@ -252,13 +96,13 @@ ENTRY(omap730_cpu_suspend) @ turn off clock domains @ do not disable PERCK (0x04) - mov r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff - orr r5, r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff00 + mov r5, #OMAP7XX_IDLECT2_SLEEP_VAL & 0xff + orr r5, r5, #OMAP7XX_IDLECT2_SLEEP_VAL & 0xff00 strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff] @ request ARM idle - mov r3, #OMAP730_IDLECT1_SLEEP_VAL & 0xff - orr r3, r3, #OMAP730_IDLECT1_SLEEP_VAL & 0xff00 + mov r3, #OMAP7XX_IDLECT1_SLEEP_VAL & 0xff + orr r3, r3, #OMAP7XX_IDLECT1_SLEEP_VAL & 0xff00 strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff] @ disable instruction cache @@ -274,7 +118,7 @@ ENTRY(omap730_cpu_suspend) mov r2, #0 mcr p15, 0, r2, c7, c0, 4 @ wait for interrupt /* - * omap730_cpu_suspend()'s resume point. + * omap7xx_cpu_suspend()'s resume point. * * It will just start executing here, so we'll restore stuff from the * stack. @@ -293,11 +137,12 @@ ENTRY(omap730_cpu_suspend) @ restore regs and return ldmfd sp!, {r0 - r12, pc} -ENTRY(omap730_cpu_suspend_sz) - .word . - omap730_cpu_suspend -#endif /* CONFIG_ARCH_OMAP730 */ +ENTRY(omap7xx_cpu_suspend_sz) + .word . - omap7xx_cpu_suspend +#endif /* CONFIG_ARCH_OMAP730 || CONFIG_ARCH_OMAP850 */ #ifdef CONFIG_ARCH_OMAP15XX + .align 3 ENTRY(omap1510_cpu_suspend) @ save registers on stack @@ -372,6 +217,7 @@ ENTRY(omap1510_cpu_suspend_sz) #endif /* CONFIG_ARCH_OMAP15XX */ #if defined(CONFIG_ARCH_OMAP16XX) + .align 3 ENTRY(omap1610_cpu_suspend) @ save registers on stack |