diff --git a/target/linux/ramips/dts/D240.dts b/target/linux/ramips/dts/D240.dts
index 3da96f2a9e..ef45d38e61 100644
--- a/target/linux/ramips/dts/D240.dts
+++ b/target/linux/ramips/dts/D240.dts
@@ -136,7 +136,7 @@
 
 &ethernet {
 	mtd-mac-address = <&factory 0x4>;
-	ralink,port-map = "wllll";
+	mediatek,portmap = "wllll";
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/GL-MT300A.dts b/target/linux/ramips/dts/GL-MT300A.dts
index a700558a03..d4c8351f1e 100644
--- a/target/linux/ramips/dts/GL-MT300A.dts
+++ b/target/linux/ramips/dts/GL-MT300A.dts
@@ -133,7 +133,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&ephy_pins>;
 	mtd-mac-address = <&factory 0x4000>;
-	ralink,port-map = "wllll";
+	mediatek,portmap = "wllll";
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/GL-MT300N.dts b/target/linux/ramips/dts/GL-MT300N.dts
index be78a72b50..927ea54d0e 100644
--- a/target/linux/ramips/dts/GL-MT300N.dts
+++ b/target/linux/ramips/dts/GL-MT300N.dts
@@ -122,7 +122,7 @@
 
 &ethernet {
 	mtd-mac-address = <&factory 0x4000>;
-	ralink,port-map = "wllll";
+	mediatek,portmap = "wllll";
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/GL-MT750.dts b/target/linux/ramips/dts/GL-MT750.dts
index ad1e3f9173..1266dd3230 100644
--- a/target/linux/ramips/dts/GL-MT750.dts
+++ b/target/linux/ramips/dts/GL-MT750.dts
@@ -128,7 +128,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&ephy_pins>;
 	mtd-mac-address = <&factory 0x4000>;
-	ralink,port-map = "llllw";
+	mediatek,portmap = "llllw";
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/MAC1200RV2.dts b/target/linux/ramips/dts/MAC1200RV2.dts
index 73ba493c5d..6d58b25b87 100644
--- a/target/linux/ramips/dts/MAC1200RV2.dts
+++ b/target/linux/ramips/dts/MAC1200RV2.dts
@@ -72,7 +72,7 @@
 &ethernet {
 	pinctrl-names = "default";
 	mtd-mac-address = <&factory 0xd>;
-	ralink,port-map = "llllw";
+	mediatek,portmap = "llllw";
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/NBG-419N2.dts b/target/linux/ramips/dts/NBG-419N2.dts
index 18e7902397..73143bd642 100644
--- a/target/linux/ramips/dts/NBG-419N2.dts
+++ b/target/linux/ramips/dts/NBG-419N2.dts
@@ -102,7 +102,7 @@
 };
 
 &esw {
-	ralink,portmap = <0x2f>;
+	mediatek,portmap = <0x2f>;
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/WL-WN575A3.dts b/target/linux/ramips/dts/WL-WN575A3.dts
index 98716beb49..213cf9c70b 100644
--- a/target/linux/ramips/dts/WL-WN575A3.dts
+++ b/target/linux/ramips/dts/WL-WN575A3.dts
@@ -125,5 +125,5 @@
 
 &ethernet {
 	mtd-mac-address = <&factory 0x2e>;
-	ralink,port-map = "llllw";
+	mediatek,portmap = "llllw";
 };
diff --git a/target/linux/ramips/dts/WRTNODE2.dtsi b/target/linux/ramips/dts/WRTNODE2.dtsi
index 294616c0f7..ca7aa3befc 100644
--- a/target/linux/ramips/dts/WRTNODE2.dtsi
+++ b/target/linux/ramips/dts/WRTNODE2.dtsi
@@ -75,7 +75,7 @@
 
 &ethernet {
 	mtd-mac-address = <&factory 0x4>;
-	ralink,port-map = "llllw";
+	mediatek,portmap = "llllw";
 };
 
 &sdhci {
diff --git a/target/linux/ramips/dts/ZBT-WE826.dts b/target/linux/ramips/dts/ZBT-WE826.dts
index de7fa42d91..8a453bca32 100644
--- a/target/linux/ramips/dts/ZBT-WE826.dts
+++ b/target/linux/ramips/dts/ZBT-WE826.dts
@@ -102,7 +102,7 @@
 
 &ethernet {
 	mtd-mac-address = <&factory 0x4>;
-	ralink,port-map = "wllll";
+	mediatek,portmap = "wllll";
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/kn_rc.dts b/target/linux/ramips/dts/kn_rc.dts
index 2709b5188a..e25783f685 100644
--- a/target/linux/ramips/dts/kn_rc.dts
+++ b/target/linux/ramips/dts/kn_rc.dts
@@ -115,7 +115,7 @@
 
 &ethernet {
 	mtd-mac-address = <&factory 0x4>;
-	ralink,port-map = "wllll";
+	mediatek,portmap = "wllll";
 };
 
 &wmac {
diff --git a/target/linux/ramips/dts/kn_rf.dts b/target/linux/ramips/dts/kn_rf.dts
index 1190eab714..4f2b71035e 100644
--- a/target/linux/ramips/dts/kn_rf.dts
+++ b/target/linux/ramips/dts/kn_rf.dts
@@ -115,7 +115,7 @@
 
 &ethernet {
 	mtd-mac-address = <&factory 0x4>;
-	ralink,port-map = "wllll";
+	mediatek,portmap = "wllll";
 };
 
 &wmac {