diff --git a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
index ecb9e1102266..67ce368ff9ee 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
@@ -37,10 +37,18 @@ &extal_clk {
 };
 
 &pfc {
+	pinctrl-0 = <&scif_clk_pins>;
+	pinctrl-names = "default";
+
 	scif2_pins: scif2 {
 		groups = "scif2_data_a";
 		function = "scif2";
 	};
+
+	scif_clk_pins: scif_clk {
+		groups = "scif_clk_a";
+		function = "scif_clk";
+	};
 };
 
 &scif2 {
@@ -49,3 +57,8 @@ &scif2 {
 
 	status = "okay";
 };
+
+&scif_clk {
+	clock-frequency = <14745600>;
+	status = "okay";
+};