arm64: dts: renesas: r8a779h0: Add SWDT node

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251006082520.10570-19-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
diff --git a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
index b59e6d8..4dc0e53 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
@@ -199,6 +199,16 @@ rwdt: watchdog@e6020000 {
 			status = "disabled";
 		};
 
+		swdt: watchdog@e6030000 {
+			compatible = "renesas,r8a779h0-wdt", "renesas,rcar-gen4-wdt";
+			reg = <0 0xe6030000 0 0x0c>;
+			interrupts = <GIC_SPI 331 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_CORE R8A779H0_CLK_OSC>;
+			power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
+			resets = <&cpg 1128>;
+			status = "disabled";
+		};
+
 		pfc: pinctrl@e6050000 {
 			compatible = "renesas,pfc-r8a779h0";
 			reg = <0 0xe6050000 0 0x16c>, <0 0xe6050800 0 0x16c>,