diff --git a/arch/arm/boot/dts/rk3288-tb.dts b/arch/arm/boot/dts/rk3288-tb.dts
index 605fafda29ec..c65b0143f7e8 100755
--- a/arch/arm/boot/dts/rk3288-tb.dts
+++ b/arch/arm/boot/dts/rk3288-tb.dts
@@ -185,8 +185,8 @@
 };
 
 &emmc {
-	clock-frequency = <50000000>;
-        clock-freq-min-max = <400000 50000000>;
+	clock-frequency = <200000000>;
+        clock-freq-min-max = <400000 200000000>;
 
         supports-highspeed;
 	supports-emmc;
@@ -206,7 +206,7 @@
 
 	
         vmmc-supply = <&rk808_ldo5_reg>;
-	status = "disabled";
+	status = "okay";
 };
 		
 &sdio {