diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index ce6f9de5caaec334a5a22c39e479cc2dff9e12af..382297ecfefaf981881601238fdcf9091b8d57d1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1457,6 +1457,7 @@
 			clock-names = "refclk";
 			#phy-cells = <1>;
 			resets = <&cru SRST_PCIEPHY>;
+			drive-impedance-ohm = <50>;
 			reset-names = "phy";
 			status = "disabled";
 		};