diff --git a/target/linux/ramips/dts/MR-102N.dts b/target/linux/ramips/dts/MR-102N.dts
index ffb76e3bf4..e290bd60bb 100644
--- a/target/linux/ramips/dts/MR-102N.dts
+++ b/target/linux/ramips/dts/MR-102N.dts
@@ -117,7 +117,6 @@
 
 &esw {
 	status = "okay";
-	#mediatek,portmap = <0x3e>;
 	mediatek,portmap = <0x2f>;
 };
 
diff --git a/target/linux/ramips/dts/ZL5900V2.dts b/target/linux/ramips/dts/ZL5900V2.dts
index d5d0ca3728..a59bb238bf 100644
--- a/target/linux/ramips/dts/ZL5900V2.dts
+++ b/target/linux/ramips/dts/ZL5900V2.dts
@@ -96,7 +96,6 @@
 };
 
 &esw {
-	mediatek,portmap = <0>;
 	mediatek,portdisable = <0x2f>;
 };