diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
index 82a7278836e5..8a291447b904 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
@@ -589,6 +589,23 @@ tmu4: timer@ffc00000 {
 			status = "disabled";
 		};
 
+		mfis: system-controller@e6260000 {
+			compatible = "renesas,r8a779g0-mfis";
+			reg = <0 0xe6260000 0 0x10000>;
+			reg-names = "common";
+			interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 916 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 918 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 920 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 922 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 135 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "ch0e", "ch1e", "ch2e", "ch3e", "ch4e", "ch5e",
+					  "ch6e", "ch7e", "ch8e", "ch9e", "ch10e", "ch11e";
+			#hwlock-cells = <1>;
+			#mbox-cells = <2>;
+			status = "disabled";
+		};
+
 		tsn0: ethernet@e6460000 {
 			compatible = "renesas,r8a779g0-ethertsn", "renesas,rcar-gen4-ethertsn";
 			reg = <0 0xe6460000 0 0x7000>,