diff options
| author | Wenyou Yang <[email protected]> | 2015-03-09 11:54:26 +0800 |
|---|---|---|
| committer | Nicolas Ferre <[email protected]> | 2015-03-13 13:34:55 +0100 |
| commit | 385acc0dac88d79447a03a1363072fc258429dec (patch) | |
| tree | 077716a902e08443bbe6e52fb0a637f5b8ea98c9 | |
| parent | 20567658b8f010eea287087bfdbeb25757801aed (diff) | |
ARM: at91/pm: flush data cache and clean, invalidate and disable the L2 cache
Flush data cache, and clean, invalidate and disable the L2 cache before going to suspend.
Restore the L2 cache configuration and re-enable the L2 cache after waking up.
Signed-off-by: Wenyou Yang <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Tested-by: Sylvain Rochet <[email protected]>
Signed-off-by: Nicolas Ferre <[email protected]>
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 9fb868d2b9da..ac947cdd506c 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -30,6 +30,7 @@ #include <asm/mach/time.h> #include <asm/mach/irq.h> #include <asm/fncpy.h> +#include <asm/cacheflush.h> #include <mach/cpu.h> #include <mach/hardware.h> @@ -133,8 +134,13 @@ static void at91_pm_suspend(suspend_state_t state) pm_data |= (state == PM_SUSPEND_MEM) ? AT91_PM_MODE(AT91_PM_SLOW_CLOCK) : 0; + flush_cache_all(); + outer_disable(); + at91_suspend_sram_fn(at91_pmc_base, at91_ramc_base[0], at91_ramc_base[1], pm_data); + + outer_resume(); } static int at91_pm_enter(suspend_state_t state) |