diff --git a/arch/arm/include/asm/arch-s5pc1xx/mmc.h b/arch/arm/include/asm/arch-s5pc1xx/mmc.h
index ac560c27046358fd30f76830230556731f241b91..68c59d13e3406223d73815220a7753153f010696 100644
--- a/arch/arm/include/asm/arch-s5pc1xx/mmc.h
+++ b/arch/arm/include/asm/arch-s5pc1xx/mmc.h
@@ -56,7 +56,7 @@ struct s5p_mmc {
 	unsigned int	control4;
 	unsigned char	res4[0x6e];
 	unsigned short	hcver;
-	unsigned char	res5[0xFFF00];
+	unsigned char	res5[0xFFF02];
 };
 
 struct mmc_host {