diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index c31dad98f989d26a7f3ae1252fce5bfce62432aa..728e206009eaba7a80336277952992833709e5c5 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -587,7 +587,8 @@ mdio0: mdio@2d24000 {
 			device_type = "mdio";
 			#address-cells = <1>;
 			#size-cells = <0>;
-			reg = <0x0 0x2d24000 0x0 0x4000>;
+			reg = <0x0 0x2d24000 0x0 0x4000>,
+			      <0x0 0x2d10030 0x0 0x4>;
 		};
 
 		ptp_clock@2d10e00 {