On 12/02/2015 at 10:52:58 +0800, Wenyou Yang wrote : > 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 <wenyou.y...@atmel.com> Acked-by: Alexandre Belloni <alexandre.bell...@free-electrons.com>
> --- > arch/arm/mach-at91/pm.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c > index 9075b41..2574bad 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> > @@ -145,8 +146,13 @@ 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) > -- > 1.7.9.5 > -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
