arm64: dts: renesas: r8a779g0: Add RWDT node

Add a device node for the RCLK Watchdog Timer (RWDT) on the Renesas
R-Car V4H (R8A779G0) SoC.

Based on a patch in the BSP by Thanh Quan.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/187904c279be6654ea3deb11b7250b64dd18c3b5.1662715538.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
index 1c15726..63319fe 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
@@ -59,6 +59,17 @@
                #size-cells = <2>;
                ranges;
 
+               rwdt: watchdog@e6020000 {
+                       compatible = "renesas,r8a779g0-wdt",
+                                    "renesas,rcar-gen4-wdt";
+                       reg = <0 0xe6020000 0 0x0c>;
+                       interrupts = <GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&cpg CPG_MOD 907>;
+                       power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+                       resets = <&cpg 907>;
+                       status = "disabled";
+               };
+
                cpg: clock-controller@e6150000 {
                        compatible = "renesas,r8a779g0-cpg-mssr";
                        reg = <0 0xe6150000 0 0x4000>;