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| author | Jean Pihet <j-pihet@ti.com> | 2011-02-02 16:38:06 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-04 15:26:08 +0100 |
| commit | b6338bdc8305b27688a7feb8689e4ccfd42f0292 (patch) | |
| tree | 2854dda3c50899b00cb7b302b06d2ba6fd03cdb2 /arch/arm/mach-omap2/sleep24xx.S | |
| parent | ARM: 6640/1: Thumb-2: Symbol manipulation macros for function body copying (diff) | |
| download | linux-b6338bdc8305b27688a7feb8689e4ccfd42f0292.tar.xz linux-b6338bdc8305b27688a7feb8689e4ccfd42f0292.zip | |
ARM: 6649/1: omap: use fncpy to copy the PM code functions to SRAM
The new fncpy API is better suited* for copying some
code to SRAM at runtime. This patch changes the ad-hoc
code to the more generic fncpy API.
*: 1. fncpy ensures that the thumb mode bit is propagated,
2. fncpy provides the security of type safety between the
original function and the sram function pointer.
Tested OK on OMAP3 in low power modes (RET/OFF)
using omap2plus_defconfig with !CONFIG_THUMB2_KERNEL.
Compile tested on OMAP1/2 using omap1_defconfig.
Boot tested on OMAP1 & OMAP2
Tested OK with suspend/resume on OMAP2420/n810
Boots fine on osk5912 and n800
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Dave Martin <dave.martin@linaro.org>
Tested-by: Kevin Hilman <khilman@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap2/sleep24xx.S')
| -rw-r--r-- | arch/arm/mach-omap2/sleep24xx.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/sleep24xx.S b/arch/arm/mach-omap2/sleep24xx.S index c7780cc8d919..b5071a47ec39 100644 --- a/arch/arm/mach-omap2/sleep24xx.S +++ b/arch/arm/mach-omap2/sleep24xx.S @@ -47,6 +47,7 @@ * 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. */ + .align 3 ENTRY(omap24xx_idle_loop_suspend) stmfd sp!, {r0, lr} @ save registers on stack mov r0, #0 @ clear for mcr setup @@ -82,6 +83,7 @@ ENTRY(omap24xx_idle_loop_suspend_sz) * The DLL load value is not kept in RETENTION or OFF. It needs to be restored * at wake */ + .align 3 ENTRY(omap24xx_cpu_suspend) stmfd sp!, {r0 - r12, lr} @ save registers on stack mov r3, #0x0 @ clear for mcr call |