diff --git a/arch/arm/boot/dts/rk3066a-marsboard.dts b/arch/arm/boot/dts/rk3066a-marsboard.dts
index bae965c123c1..7cdc308bfac5 100644
--- a/arch/arm/boot/dts/rk3066a-marsboard.dts
+++ b/arch/arm/boot/dts/rk3066a-marsboard.dts
@@ -178,6 +178,14 @@
 	};
 };
 
+&mmc0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
+	vmmc-supply = <&vcc_sd0>;
+};
+
 &pinctrl {
 	lan8720a {
 		phy_int: phy-int {