diff --git a/target/linux/ramips/dts/mt7620n.dtsi b/target/linux/ramips/dts/mt7620n.dtsi
index 5d3c1e3fa4..26c7d91e33 100644
--- a/target/linux/ramips/dts/mt7620n.dtsi
+++ b/target/linux/ramips/dts/mt7620n.dtsi
@@ -293,11 +293,11 @@
 
 		mediatek,switch = <&gsw>;
 
-		mdio-bus {
-			#address-cells = <1>;
-			#size-cells = <0>;
+		port@4 {
+			compatible = "mediatek,mt7620a-gsw-port", "mediatek,eth-port";
+			reg = <4>;
 
-			status = "disabled";
+			status = "okay";
 		};
 	};
 
@@ -310,7 +310,7 @@
 
 		interrupt-parent = <&intc>;
 		interrupts = <17>;
-		mediatek,port4 = "gmac";
+		mediatek,port4 = "ephy";
 	};
 
 	ehci: ehci@101c0000 {