diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
index 320250d708c3bbabd9cc79019568cdec9f495e6f..ce808d3f9f628539f05ef4232bac9726894d7e31 100644
--- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -338,6 +338,15 @@
 	clock-frequency = <32768>;
 };
 
+&hscif1 {
+	pinctrl-0 = <&hscif1_pins>;
+	pinctrl-names = "default";
+
+	uart-has-rtscts;
+	/* Please only enable hscif1 or scif1 */
+	/* status = "okay"; */
+};
+
 &hsusb {
 	dr_mode = "otg";
 	status = "okay";
@@ -543,6 +552,11 @@
 		function = "du";
 	};
 
+	hscif1_pins: hscif1 {
+		groups = "hscif1_data_a", "hscif1_ctrl_a";
+		function = "hscif1";
+	};
+
 	i2c2_pins: i2c2 {
 		groups = "i2c2_a";
 		function = "i2c2";
@@ -708,6 +722,7 @@
 	pinctrl-names = "default";
 
 	uart-has-rtscts;
+	/* Please only enable hscif1 or scif1 */
 	status = "okay";
 };