diff options
| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2012-02-13 14:58:30 +0800 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2012-04-17 14:46:43 +0200 |
| commit | efd09165aa554f84a42565d5ae6a1af58b06a97a (patch) | |
| tree | 3ca981db0ec5b7882f8e07f2ef204e97ea1b63f9 /arch/arm/mach-at91 | |
| parent | 7eb1dbb3beb982a7d72514abff96ebc08a22e5cd (diff) | |
ARM: at91: pm select memory controler at runtime
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
[nicolas.ferre@atmel.com: add cpuidle modification]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/cpuidle.c | 8 | ||||
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 12 | ||||
| -rw-r--r-- | arch/arm/mach-at91/pm.h | 13 |
3 files changed, 15 insertions, 18 deletions
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c index ece1f9aefb4..0c6381516a5 100644 --- a/arch/arm/mach-at91/cpuidle.c +++ b/arch/arm/mach-at91/cpuidle.c @@ -21,6 +21,7 @@ #include <linux/export.h> #include <asm/proc-fns.h> #include <asm/cpuidle.h> +#include <mach/cpu.h> #include "pm.h" @@ -33,7 +34,12 @@ static int at91_enter_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - at91_standby(); + if (cpu_is_at91rm9200()) + at91rm9200_standby(); + else if (cpu_is_at91sam9g45()) + at91sam9g45_standby(); + else + at91sam9_standby(); return index; } diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index f630250c6b8..1bfaad62873 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -261,7 +261,12 @@ static int at91_pm_enter(suspend_state_t state) * For ARM 926 based chips, this requirement is weaker * as at91sam9 can access a RAM in self-refresh mode. */ - at91_standby(); + if (cpu_is_at91rm9200()) + at91rm9200_standby(); + else if (cpu_is_at91sam9g45()) + at91sam9g45_standby(); + else + at91sam9_standby(); break; case PM_SUSPEND_ON: @@ -307,10 +312,9 @@ static int __init at91_pm_init(void) pr_info("AT91: Power Management%s\n", (slow_clock ? " (with slow clock mode)" : "")); -#ifdef CONFIG_ARCH_AT91RM9200 /* AT91RM9200 SDRAM low-power mode cannot be used with self-refresh. */ - at91_ramc_write(0, AT91RM9200_SDRAMC_LPR, 0); -#endif + if (cpu_is_at91rm9200()) + at91_ramc_write(0, AT91RM9200_SDRAMC_LPR, 0); suspend_set_ops(&at91_pm_ops); diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h index 89f56f3a802..1b4865e7571 100644 --- a/arch/arm/mach-at91/pm.h +++ b/arch/arm/mach-at91/pm.h @@ -12,7 +12,6 @@ #define __ARCH_ARM_MACH_AT91_PM #include <mach/at91_ramc.h> -#ifdef CONFIG_ARCH_AT91RM9200 #include <mach/at91rm9200_sdramc.h> /* @@ -43,10 +42,6 @@ static inline void at91rm9200_standby(void) "r" (lpr)); } -#define at91_standby at91rm9200_standby - -#elif defined(CONFIG_ARCH_AT91SAM9G45) - /* We manage both DDRAM/SDRAM controllers, we need more than one value to * remember. */ @@ -75,10 +70,6 @@ static inline void at91sam9g45_standby(void) at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1); } -#define at91_standby at91sam9g45_standby - -#else - #ifdef CONFIG_ARCH_AT91SAM9263 /* * FIXME either or both the SDRAM controllers (EB0, EB1) might be in use; @@ -102,8 +93,4 @@ static inline void at91sam9_standby(void) at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr); } -#define at91_standby at91sam9_standby - -#endif - #endif |