diff options
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/at91x40.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-at91/include/mach/system.h | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/at91x40.h b/arch/arm/mach-at91/include/mach/at91x40.h index d34cdb8abdc..063ac44a020 100644 --- a/arch/arm/mach-at91/include/mach/at91x40.h +++ b/arch/arm/mach-at91/include/mach/at91x40.h @@ -52,4 +52,10 @@ #define AT91_DBGU_CIDR (AT91_SF + 0) /* CIDR in PS segment */ #define AT91_DBGU_EXID (AT91_SF + 4) /* EXID in PS segment */ +/* + * Support defines for the simple Power Controller module. + */ +#define AT91_PS_CR (AT91_PS + 0) /* PS Control register */ +#define AT91_PS_CR_CPU (1 << 0) /* CPU clock disable bit */ + #endif /* AT91X40_H */ diff --git a/arch/arm/mach-at91/include/mach/system.h b/arch/arm/mach-at91/include/mach/system.h index c80e090b367..bfbb612265d 100644 --- a/arch/arm/mach-at91/include/mach/system.h +++ b/arch/arm/mach-at91/include/mach/system.h @@ -33,7 +33,11 @@ static inline void arch_idle(void) * Disable the processor clock. The processor will be automatically * re-enabled by an interrupt or by a reset. */ +#ifdef AT91_PS + at91_sys_write(AT91_PS_CR, AT91_PS_CR_CPU); +#else at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK); +#endif #else /* * Set the processor (CP15) into 'Wait for Interrupt' mode. |