diff --git a/target/linux/ramips/dts/mt7628an_tplink_8m-split-uboot.dtsi b/target/linux/ramips/dts/mt7628an_tplink_8m-split-uboot.dtsi
index 6d7fb01c56..8807f7f274 100644
--- a/target/linux/ramips/dts/mt7628an_tplink_8m-split-uboot.dtsi
+++ b/target/linux/ramips/dts/mt7628an_tplink_8m-split-uboot.dtsi
@@ -84,5 +84,5 @@
 
 &ethernet {
 	mtd-mac-address = <&rom 0xf100>;
-	mediatek,portmap = "llllw";
+	mediatek,portmap = "wllll";
 };