diff --git a/arch/arm/mach-rockchip/rk3368/rk3368.c b/arch/arm/mach-rockchip/rk3368/rk3368.c
index e82b631138..0bfe39d5f3 100644
--- a/arch/arm/mach-rockchip/rk3368/rk3368.c
+++ b/arch/arm/mach-rockchip/rk3368/rk3368.c
@@ -66,13 +66,13 @@ static struct mm_region rk3368_mem_map[] = {
 	{
 		.virt = 0x0UL,
 		.phys = 0x0UL,
-		.size = 0x80000000UL,
+		.size = 0xfe000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
 			 PTE_BLOCK_INNER_SHARE
 	}, {
-		.virt = 0xf0000000UL,
-		.phys = 0xf0000000UL,
-		.size = 0x10000000UL,
+		.virt = 0xfe000000UL,
+		.phys = 0xfe000000UL,
+		.size = 0x02000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 			 PTE_BLOCK_NON_SHARE |
 			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
diff --git a/include/configs/rk3368_common.h b/include/configs/rk3368_common.h
index e7f4178f0c..4f9105edac 100644
--- a/include/configs/rk3368_common.h
+++ b/include/configs/rk3368_common.h
@@ -15,7 +15,7 @@
 #include <linux/sizes.h>
 
 #define CONFIG_SYS_SDRAM_BASE		0
-#define SDRAM_MAX_SIZE			0xff000000
+#define SDRAM_MAX_SIZE			0xfe000000
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_SYS_MALLOC_LEN		(192 << 20)
 #define CONFIG_SYS_CBSIZE		1024