diff --git a/arch/arm/mach-s3c64xx/include/mach/memory.h b/arch/arm/mach-s3c64xx/include/mach/memory.h
index a3ac84a6548010815bde285679c645ff172ce6b2..42cc54e2ee3061824da68112789cdf7555231352 100644
--- a/arch/arm/mach-s3c64xx/include/mach/memory.h
+++ b/arch/arm/mach-s3c64xx/include/mach/memory.h
@@ -15,4 +15,6 @@
 
 #define PHYS_OFFSET     UL(0x50000000)
 
+#define CONSISTENT_DMA_SIZE	SZ_8M
+
 #endif