diff --git a/arch/arm/plat-rk/include/plat/memory.h b/arch/arm/plat-rk/include/plat/memory.h
index be59d3bdf400..1b55a3902a90 100644
--- a/arch/arm/plat-rk/include/plat/memory.h
+++ b/arch/arm/plat-rk/include/plat/memory.h
@@ -8,6 +8,8 @@
  */
 #define PLAT_PHYS_OFFSET	UL(0x60000000)
 
+#define CONSISTENT_DMA_SIZE	SZ_8M
+
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 34))
 #define dmac_clean_range(start, end)	dmac_map_area(start, end - start, DMA_TO_DEVICE)
 #define dmac_inv_range(start, end)	dmac_unmap_area(start, end - start, DMA_FROM_DEVICE)