diff --git a/target/linux/ramips/dts/mt7620a.dtsi b/target/linux/ramips/dts/mt7620a.dtsi
index 211d8dc3c1082b3f97f708fa5e4379431624d135..37b65600ef8fbc6e8496baa6d63b73d53e9bdb6e 100644
--- a/target/linux/ramips/dts/mt7620a.dtsi
+++ b/target/linux/ramips/dts/mt7620a.dtsi
@@ -434,6 +434,9 @@
 		reg = <0x10140000 0x100
 			0x10142000 0x100>;
 
+		#address-cells = <3>;
+		#size-cells = <2>;
+
 		resets = <&rstctrl 26>;
 		reset-names = "pcie0";
 
@@ -444,6 +447,10 @@
 
 		pcie-bridge {
 			reg = <0x0000 0 0 0 0>;
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+
 			device_type = "pci";
 		};
 	};
diff --git a/target/linux/ramips/dts/mt7628an.dtsi b/target/linux/ramips/dts/mt7628an.dtsi
index ee953cd026a6f4dc6da7a5292734e142fe519af8..f0cb7b5f5056ca5cd4aecb28e7a63b778b3139e2 100644
--- a/target/linux/ramips/dts/mt7628an.dtsi
+++ b/target/linux/ramips/dts/mt7628an.dtsi
@@ -202,6 +202,9 @@
 		reg = <0x10140000 0x100
 			0x10142000 0x100>;
 
+		#address-cells = <3>;
+		#size-cells = <2>;
+
 		resets = <&rstctrl 26>;
 		reset-names = "pcie0";
 
@@ -212,6 +215,10 @@
 
 		pcie-bridge {
 			reg = <0x0000 0 0 0 0>;
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+
 			device_type = "pci";
 		};
 	};