Index: linux-4.14.51/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
===================================================================
--- linux-4.14.51.orig/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
+++ linux-4.14.51/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
@@ -141,7 +141,7 @@
 	gmac1: mac@1 {
 		compatible = "mediatek,eth-mac";
 		reg = <1>;
-		phy-mode = "rgmii";
+		phy-mode = "trgmii";
 
 		fixed-link {
 			speed = <1000>;
@@ -206,7 +206,7 @@
 					reg = <5>;
 					label = "cpu";
 					ethernet = <&gmac1>;
-					phy-mode = "rgmii";
+					phy-mode = "trgmii";
 
 					fixed-link {
 						speed = <1000>;