diff --git a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-eth1.dtso b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-eth1.dtso
index 4d0e5c04067..51d5dc661ad 100644
--- a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-eth1.dtso
+++ b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-eth1.dtso
@@ -18,6 +18,8 @@
 	fragment@1 {
 		target = <&mdio_bus>;
 		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
 			reset-gpios = <&pio 14 GPIO_ACTIVE_LOW>;
 			reset-delay-us = <600>;
 			reset-post-delay-us = <20000>;
diff --git a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-swp5.dtso b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-swp5.dtso
index 710e6c0bcfb..4cc3cf1df6c 100644
--- a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-swp5.dtso
+++ b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7981-rfb-mxl-2p5g-phy-swp5.dtso
@@ -19,6 +19,8 @@
 	fragment@1 {
 		target = <&mdio_bus>;
 		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
 			reset-gpios = <&pio 14 GPIO_ACTIVE_LOW>;
 			reset-delay-us = <600>;
 			reset-post-delay-us = <20000>;