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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-02 03:22:01 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-02 03:22:01 (GMT) |
commit | cd9a0b6bd67ec372b0ef3cb2abe26974f888b956 (patch) | |
tree | ffec66aa48f95b2b764f9e84fbafc519cce5000e /arch/arm/mach-prima2/sleep.S | |
parent | ac5761a650d22dd7dfad4d417463a0981d2da0a4 (diff) | |
parent | 090ad104c5c59c7952d4b8d4cfb60559b38eb3e0 (diff) | |
download | linux-fsl-qoriq-cd9a0b6bd67ec372b0ef3cb2abe26974f888b956.tar.xz |
Merge branch 'next/pm' of git://git.linaro.org/people/arnd/arm-soc
* 'next/pm' of git://git.linaro.org/people/arnd/arm-soc: (66 commits)
ARM: CSR: PM: use outer_resume to resume L2 cache
ARM: CSR: call l2x0_of_init to init L2 cache of SiRFprimaII
ARM: OMAP: voltage: voltage layer present, even when CONFIG_PM=n
ARM: CSR: PM: add sleep entry for SiRFprimaII
ARM: CSR: PM: save/restore irq status in suspend cycle
ARM: CSR: PM: save/restore timer status in suspend cycle
OMAP4: PM: TWL6030: add cmd register
OMAP4: PM: TWL6030: fix ON/RET/OFF voltages
OMAP4: PM: TWL6030: address 0V conversions
OMAP4: PM: TWL6030: fix uv to voltage for >0x39
OMAP4: PM: TWL6030: fix voltage conversion formula
omap: voltage: add a stub header file for external/regulator use
OMAP2+: VC: more registers are per-channel starting with OMAP5
OMAP3+: voltage: update nominal voltage in voltdm_scale() not VC post-scale
OMAP3+: voltage: rename omap_voltage_get_nom_volt -> voltdm_get_voltage
OMAP3+: voltdm: final removal of omap_vdd_info
OMAP3+: voltage: move/rename curr_volt from vdd_info into struct voltagedomain
OMAP3+: voltage: rename scale and reset functions using voltdm_ prefix
OMAP3+: VP: combine setting init voltage into common function
OMAP3+: VP: remove unused omap_vp_get_curr_volt()
...
Fix up trivial conflict in arch/arm/mach-prima2/l2x0.c (code removal vs
edit)
Diffstat (limited to 'arch/arm/mach-prima2/sleep.S')
-rw-r--r-- | arch/arm/mach-prima2/sleep.S | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/mach-prima2/sleep.S b/arch/arm/mach-prima2/sleep.S new file mode 100644 index 0000000..0745abc --- /dev/null +++ b/arch/arm/mach-prima2/sleep.S @@ -0,0 +1,64 @@ +/* + * sleep mode for CSR SiRFprimaII + * + * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. + * + * Licensed under GPLv2 or later. + */ + +#include <linux/linkage.h> +#include <asm/ptrace.h> +#include <asm/assembler.h> + +#include "pm.h" + +#define DENALI_CTL_22_OFF 0x58 +#define DENALI_CTL_112_OFF 0x1c0 + + .text + +ENTRY(sirfsoc_finish_suspend) + @ r5: mem controller + ldr r0, =sirfsoc_memc_base + ldr r5, [r0] + @ r6: pwrc base offset + ldr r0, =sirfsoc_pwrc_base + ldr r6, [r0] + @ r7: rtc iobrg controller + ldr r0, =sirfsoc_rtciobrg_base + ldr r7, [r0] + + @ Read the power control register and set the + @ sleep force bit. + add r0, r6, #SIRFSOC_PWRC_PDN_CTRL + bl __sirfsoc_rtc_iobrg_readl + orr r0,r0,#SIRFSOC_PWR_SLEEPFORCE + add r1, r6, #SIRFSOC_PWRC_PDN_CTRL + bl sirfsoc_rtc_iobrg_pre_writel + mov r1, #0x1 + + @ read the MEM ctl register and set the self + @ refresh bit + + ldr r2, [r5, #DENALI_CTL_22_OFF] + orr r2, r2, #0x1 + + @ Following code has to run from cache since + @ the RAM is going to self refresh mode + .align 5 + str r2, [r5, #DENALI_CTL_22_OFF] + +1: + ldr r4, [r5, #DENALI_CTL_112_OFF] + tst r4, #0x1 + bne 1b + + @ write SLEEPFORCE through rtc iobridge + + str r1, [r7] + @ wait rtc io bridge sync +1: + ldr r3, [r7] + tst r3, #0x01 + bne 1b + b . |