diff --git a/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi b/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi
index 4a5ca3281385..5f81a295bc99 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi
@@ -66,6 +66,11 @@
 	status = "okay";
 };
 
+&combphy1_usq {
+	rockchip,dis-u3otg1-port;
+	status = "okay";
+};
+
 &combphy2_psq {
 	status = "disabled";
 };