diff options
| -rw-r--r-- | arch/arm/mach-at91/pm_suspend.S | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index 1002bb80a939..7c444c259740 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -51,6 +51,24 @@ tmp2 .req r5 beq 1b .endm +/* + * Put the processor to enter the idle state + */ + .macro at91_cpu_idle + +#if defined(CONFIG_CPU_V7) + mov tmp1, #AT91_PMC_PCK + str tmp1, [pmc, #AT91_PMC_SCDR] + + dsb + + wfi @ Wait For Interrupt +#else + mcr p15, 0, tmp1, c7, c0, 4 +#endif + + .endm + .text .arm @@ -123,7 +141,7 @@ skip_disable_main_clock: ldr pmc, .pmc_base /* Wait for interrupt */ - mcr p15, 0, tmp1, c7, c0, 4 + at91_cpu_idle ldr r0, .pm_mode tst r0, #AT91_PM_SLOW_CLOCK |