diff options
Diffstat (limited to 'arch/arm/mach-omap2/sleep44xx.S')
| -rw-r--r-- | arch/arm/mach-omap2/sleep44xx.S | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S index 9f6b83d1b193..b7d8ead4b86a 100644 --- a/arch/arm/mach-omap2/sleep44xx.S +++ b/arch/arm/mach-omap2/sleep44xx.S @@ -14,10 +14,10 @@ #include <asm/memory.h> #include <asm/hardware/cache-l2x0.h> -#include <plat/omap44xx.h> #include <mach/omap-secure.h> #include "common.h" +#include "omap44xx.h" #include "omap4-sar-layout.h" #if defined(CONFIG_SMP) && defined(CONFIG_PM) @@ -56,9 +56,13 @@ ppa_por_params: * The restore function pointer is stored at CPUx_WAKEUP_NS_PA_ADDR_OFFSET. * It returns to the caller for CPU INACTIVE and ON power states or in case * CPU failed to transition to targeted OFF/DORMANT state. + * + * omap4_finish_suspend() calls v7_flush_dcache_all() which doesn't save + * stack frame and it expects the caller to take care of it. Hence the entire + * stack frame is saved to avoid possible stack corruption. */ ENTRY(omap4_finish_suspend) - stmfd sp!, {lr} + stmfd sp!, {r4-r12, lr} cmp r0, #0x0 beq do_WFI @ No lowpower state, jump to WFI @@ -226,7 +230,7 @@ scu_gp_clear: skip_scu_gp_clear: isb dsb - ldmfd sp!, {pc} + ldmfd sp!, {r4-r12, pc} ENDPROC(omap4_finish_suspend) /* |
