Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / arch / arm / include / asm / system.h

diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 1f92d27e0614248f5e1c3189e287fbea099dcc44..8b5b9f47b465bb047f632d9da1a6f71457bd0d54 100644 (file)
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -61,6 +61,12 @@
 
 #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");
 
+#ifdef __ARM_ARCH_7A__
+#define wfi() __asm__ __volatile__ ("wfi" : : : "memory")
+#else
+#define wfi()
+#endif
+
 static inline unsigned int get_cr(void)
 {
        unsigned int val;
@@ -75,6 +81,20 @@ static inline void set_cr(unsigned int val)
        isb();
 }
 
+static inline unsigned int get_dacr(void)
+{
+       unsigned int val;
+       asm("mrc p15, 0, %0, c3, c0, 0  @ get DACR" : "=r" (val) : : "cc");
+       return val;
+}
+
+static inline void set_dacr(unsigned int val)
+{
+       asm volatile("mcr p15, 0, %0, c3, c0, 0 @ set DACR"
+         : : "r" (val) : "cc");
+       isb();
+}
+
 /* options available for data cache on each page */
 enum dcache_option {
        DCACHE_OFF = 0x12,