diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index 66790578f960..3d7e3566fbcc 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -1226,8 +1226,8 @@
 			clocks = <&pmucru SCLK_USBPHY_REF>;
 			clock-names = "phyclk";
 			#clock-cells = <0>;
-			assigned-clocks = <&cru USB480M>;
-			assigned-clock-parents = <&u2phy>;
+			assigned-clocks = <&cru USB480M>, <&cru SCLK_UART1_SRC>;
+			assigned-clock-parents = <&u2phy>, <&cru USB480M>;
 			clock-output-names = "usb480m_phy";
 			status = "disabled";