diff --git a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi b/arch/arm64/boot/dts/renesas/r9a08g046.dtsi
index e52498b3a745..232a0e299df7 100644
--- a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a08g046.dtsi
@@ -210,6 +210,96 @@ pinctrl: pinctrl@11030000 {
 			/* placeholder */
 		};
 
+		icu: interrupt-controller@11050000 {
+			compatible = "renesas,r9a08g046-irqc";
+			#interrupt-cells = <2>;
+			#address-cells = <0>;
+			interrupt-controller;
+			reg = <0 0x11050000 0 0x10000>;
+			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 529 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 530 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 531 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 532 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 533 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 534 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 535 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 536 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 505 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 507 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 509 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 510 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 511 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 512 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 513 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 514 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 515 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 516 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 517 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 518 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 519 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 520 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 521 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 522 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 523 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 524 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 525 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 526 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 527 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 528 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 529 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 530 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 531 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 532 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 533 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 534 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 535 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 536 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 236 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 248 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 260 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 284 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 296 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "nmi",
+					  "irq0", "irq1", "irq2", "irq3",
+					  "irq4", "irq5", "irq6", "irq7",
+					  "irq8", "irq9", "irq10", "irq11",
+					  "irq12", "irq13", "irq14", "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",
+					  "bus-err", "ec7tie1-0", "ec7tie2-0", "ec7tiovf-0",
+					  "ovfunf0", "ovfunf1", "ovfunf2", "ovfunf3",
+					  "ovfunf4", "ovfunf5", "ovfunf6", "ovfunf7";
+			clocks = <&cpg CPG_MOD R9A08G046_IA55_CLK>,
+				 <&cpg CPG_MOD R9A08G046_IA55_PCLK>;
+			clock-names = "clk", "pclk";
+			power-domains = <&cpg>;
+			resets = <&cpg R9A08G046_IA55_RESETN>;
+		};
+
 		sdhi1: mmc@11c10000 {
 			reg = <0x0 0x11c10000 0 0x10000>;
 			/* placeholder */