diff --git a/arch/arm/dts/r8a77990-u-boot.dtsi b/arch/arm/dts/r8a77990-u-boot.dtsi
index 564c258..052caa7 100644
--- a/arch/arm/dts/r8a77990-u-boot.dtsi
+++ b/arch/arm/dts/r8a77990-u-boot.dtsi
@@ -6,3 +6,13 @@
  */
 
 #include "r8a779x-u-boot.dtsi"
+
+&soc {
+	rpc: rpc@0xee200000 {
+		compatible = "renesas,rpc-r8a77990", "renesas,rpc";
+		reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0>;
+		clocks = <&cpg CPG_MOD 917>;
+		bank-width = <2>;
+		status = "disabled";
+	};
+};