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| author | Ingo Molnar <mingo@elte.hu> | 2010-10-18 18:43:43 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-10-18 18:43:46 +0200 |
| commit | f2f108eb4511f22a6f7568090cfcf4e7b2dc0f62 (patch) | |
| tree | 4b75771ec02543372808c7df31a1a65e37fdb361 /arch/arm/mach-at91/include | |
| parent | 756b0322e50aebc4b9afb4488a2d3f6c802b4e64 (diff) | |
| parent | 2b666ca4a68cbc22483b0f2e1ba3c0e59b01ae9e (diff) | |
Merge branch 'linus' into core/locking
Merge reason: Update to almost-final-.36
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-at91/include')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/system.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arm/mach-at91/include/mach/system.h b/arch/arm/mach-at91/include/mach/system.h index c80e090b3670..ee8db152592e 100644 --- a/arch/arm/mach-at91/include/mach/system.h +++ b/arch/arm/mach-at91/include/mach/system.h @@ -28,17 +28,16 @@ static inline void arch_idle(void) { -#ifndef CONFIG_DEBUG_KERNEL /* * Disable the processor clock. The processor will be automatically * re-enabled by an interrupt or by a reset. */ at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK); -#else +#ifndef CONFIG_CPU_ARM920T /* * Set the processor (CP15) into 'Wait for Interrupt' mode. - * Unlike disabling the processor clock via the PMC (above) - * this allows the processor to be woken via JTAG. + * Post-RM9200 processors need this in conjunction with the above + * to save power when idle. */ cpu_do_idle(); #endif |