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>
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c
index ece1f9a..0c63815 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 @@
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 f630250..1bfaad6 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -261,7 +261,12 @@
* 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 @@
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 89f56f3..1b4865e 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 @@
"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 @@
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 @@
at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr);
}
-#define at91_standby at91sam9_standby
-
-#endif
-
#endif