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-rw-r--r--arch/arm/mach-at91/pm.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index 2c4424bfa6c4..ce9a20699111 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -21,7 +21,8 @@ static inline u32 sdram_selfrefresh_enable(void)
}
#define sdram_selfrefresh_disable(saved_lpr) at91_sys_write(AT91_SDRAMC_LPR, saved_lpr)
-#define wait_for_interrupt_enable() asm("mcr p15, 0, r0, c7, c0, 4")
+#define wait_for_interrupt_enable() asm volatile ("mcr p15, 0, %0, c7, c0, 4" \
+ : : "r" (0))
#elif defined(CONFIG_ARCH_AT91CAP9)
#include <mach/at91cap9_ddrsdr.h>