diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
index c93aa16d0a6e..2023f70d3329 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
@@ -8,6 +8,24 @@
 #include <dt-bindings/clock/renesas,r9a09g047-cpg.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
+#define RZG3E_NMI	0
+#define RZG3E_IRQ0	1
+#define RZG3E_IRQ1	2
+#define RZG3E_IRQ2	3
+#define RZG3E_IRQ3	4
+#define RZG3E_IRQ4	5
+#define RZG3E_IRQ5	6
+#define RZG3E_IRQ6	7
+#define RZG3E_IRQ7	8
+#define RZG3E_IRQ8	9
+#define RZG3E_IRQ9	10
+#define RZG3E_IRQ10	11
+#define RZG3E_IRQ11	12
+#define RZG3E_IRQ12	13
+#define RZG3E_IRQ13	14
+#define RZG3E_IRQ14	15
+#define RZG3E_IRQ15	16
+
 / {
 	compatible = "renesas,r9a09g047";
 	#address-cells = <2>;
@@ -131,6 +149,95 @@ soc: soc {
 		#size-cells = <2>;
 		ranges;
 
+		icu: interrupt-controller@10400000 {
+			compatible = "renesas,r9a09g047-icu";
+			reg = <0 0x10400000 0 0x10000>;
+			#interrupt-cells = <2>;
+			#address-cells = <0>;
+			interrupt-controller;
+			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 419 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 420 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 421 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 423 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 427 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 428 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 429 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 431 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 432 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 433 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 434 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 436 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 437 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 438 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 439 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 440 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 441 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 442 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 443 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 445 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 447 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 448 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 449 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 450 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 262 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 263 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 265 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 451 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 452 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 453 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 454 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "nmi",
+					  "port_irq0", "port_irq1", "port_irq2",
+					  "port_irq3", "port_irq4", "port_irq5",
+					  "port_irq6", "port_irq7", "port_irq8",
+					  "port_irq9", "port_irq10", "port_irq11",
+					  "port_irq12", "port_irq13", "port_irq14",
+					  "port_irq15",
+					  "tint0", "tint1", "tint2", "tint3",
+					  "tint4", "tint5", "tint6", "tint7",
+					  "tint8", "tint9", "tint10", "tint11",
+					  "tint12", "tint13", "tint14", "tint15",
+					  "tint16", "tint17", "tint18", "tint19",
+					  "tint20", "tint21", "tint22", "tint23",
+					  "tint24", "tint25", "tint26", "tint27",
+					  "tint28", "tint29", "tint30", "tint31",
+					  "int-ca55-0", "int-ca55-1",
+					  "int-ca55-2", "int-ca55-3",
+					  "icu-error-ca55",
+					  "gpt-u0-gtciada", "gpt-u0-gtciadb",
+					  "gpt-u1-gtciada", "gpt-u1-gtciadb";
+			clocks = <&cpg CPG_MOD 0x5>;
+			power-domains = <&cpg>;
+			resets = <&cpg 0x36>;
+		};
+
 		pinctrl: pinctrl@10410000 {
 			compatible = "renesas,r9a09g047-pinctrl";
 			reg = <0 0x10410000 0 0x10000>;
@@ -140,6 +247,7 @@ pinctrl: pinctrl@10410000 {
 			gpio-ranges = <&pinctrl 0 0 232>;
 			#interrupt-cells = <2>;
 			interrupt-controller;
+			interrupt-parent = <&icu>;
 			power-domains = <&cpg>;
 			resets = <&cpg 0xa5>, <&cpg 0xa6>;
 		};
