diff --git a/arch/arm64/boot/dts/rockchip/rk3566-evb3-ddr3-v10.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-evb3-ddr3-v10.dtsi
index 4893b76cb9d1..879cb459f1b8 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-evb3-ddr3-v10.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-evb3-ddr3-v10.dtsi
@@ -411,6 +411,8 @@
 
 &uart1 {
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1m0_xfer &uart1m0_ctsn>;
 };
 
 &vcc3v3_lcd0_n {