diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index eb2de8c10515d118aa8616e27adb2f6accd149ad..ec91d1ff032a5ebbeff161a91a83ef25932eb51e 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -415,6 +415,9 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
 	return ret;
 }
 
+extern void disable_hlt(void);
+extern void enable_hlt(void);
+
 #endif /* __ASSEMBLY__ */
 
 #define arch_align_stack(x) (x)