diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index 6fdd5ef..6070c6b 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -26,7 +26,7 @@
 #define S3C6400_CPU_ID		0x36400000
 #define S3C6410_CPU_ID		0x36410000
 #define S3C64XX_CPU_ID		(S3C6400_CPU_ID & S3C6410_CPU_ID)
-#define S3C64XX_CPU_MASK	0x1FF40000
+#define S3C64XX_CPU_MASK	0xFFFFF000
 
 #define S5P6440_CPU_ID		0x56440000
 #define S5P6450_CPU_ID		0x36450000