diff --git a/target/linux/airoha/dts/an7581-nokia-valyrian.dts b/target/linux/airoha/dts/an7581-nokia-valyrian.dts
index ae24d075e7..7e5facbcda 100644
--- a/target/linux/airoha/dts/an7581-nokia-valyrian.dts
+++ b/target/linux/airoha/dts/an7581-nokia-valyrian.dts
@@ -356,6 +356,7 @@
 };
 
 &pcie0 {
+	airoha,x2-mode;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie1_rst_pins>;
 	status = "okay";
diff --git a/target/linux/airoha/dts/an7581-w1700k-ubi.dts b/target/linux/airoha/dts/an7581-w1700k-ubi.dts
index 10a2c7d115..bbcc1d1135 100644
--- a/target/linux/airoha/dts/an7581-w1700k-ubi.dts
+++ b/target/linux/airoha/dts/an7581-w1700k-ubi.dts
@@ -252,6 +252,8 @@
 &pcie0 {
 	status = "okay";
 
+	airoha,x2-mode;
+
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie0_rst_pins>;
 	pcie@0,0 {
diff --git a/target/linux/airoha/dts/an7581.dtsi b/target/linux/airoha/dts/an7581.dtsi
index 0cb4d32701..056e593f39 100644
--- a/target/linux/airoha/dts/an7581.dtsi
+++ b/target/linux/airoha/dts/an7581.dtsi
@@ -728,10 +728,7 @@
 
 			mediatek,pbus-csr = <&pbus_csr 0x0 0x4>;
 
-			airoha,chip-scu = <&chip_scu>;
 			airoha,np-scu = <&scuclk>;
-			airoha,x2-mode;
-			airoha,serdes-lanes-mask = <0x3>;
 
 			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
 			bus-range = <0x00 0xff>;
@@ -819,8 +816,6 @@
 
 			mediatek,pbus-csr = <&pbus_csr 0x10 0x14>;
 
-			airoha,chip-scu = <&chip_scu>;
-			airoha,serdes-lanes-mask = <0x4>;
 			airoha,np-scu = <&scuclk>;
 
 			interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;