arm64: dts: renesas: r8a77990: ebisu: Enable watchdog timer

Add a device node for the Watchdog Timer (WDT) controller on the
R8A77990 SoC, and enable the watchdog on the Ebisu board.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Squashed 2 commits]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
index 7a09d0524f9b06633a014231a20938b01a1ca58f..28945a8b980080f2b2a934f3ec1b4195d5d8ee6b 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
@@ -60,6 +60,11 @@
        };
 };
 
+&rwdt {
+       timeout-sec = <60>;
+       status = "okay";
+};
+
 &scif2 {
        status = "okay";
 };

diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index be4f519711a1b029458dbcde96cf994af234b5b5..e644f49c9b58ef6c28a4269557b77247cbefc24e 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -60,6 +60,16 @@
                #size-cells = <2>;
                ranges;
 
+               rwdt: watchdog@e6020000 {
+                       compatible = "renesas,r8a77990-wdt",
+                                    "renesas,rcar-gen3-wdt";
+                       reg = <0 0xe6020000 0 0x0c>;
+                       clocks = <&cpg CPG_MOD 402>;
+                       power-domains = <&sysc 32>;
+                       resets = <&cpg 402>;
+                       status = "disabled";
+               };
+
                gpio0: gpio@e6050000 {
                        compatible = "renesas,gpio-r8a77990",
                                     "renesas,rcar-gen3-gpio";