Describe RWDT in the R8A77980 SoC device tree.
Enable RWDT on the Condor and V3H Starter Kit boards.
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
---
The patch is against the 'renesas-devel-20180720-v4.18-rc5' of Simon Horman's
'renesas.git' repo. It depends on Geert Uytterhoeven's clock driver patches
(adding the RWDT clock) in order to work...
arch/arm64/boot/dts/renesas/r8a77980-condor.dts | 5 +++++
arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts | 5 +++++
arch/arm64/boot/dts/renesas/r8a77980.dtsi | 10 ++++++++++
3 files changed, 20 insertions(+)
Index: renesas/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
+++ renesas/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
@@ -262,6 +262,11 @@
};
};
+&rwdt {
+ timeout-sec = <60>;
+ status = "okay";
+};
+
&scif0 {
pinctrl-0 = <&scif0_pins>, <&scif_clk_pins>;
pinctrl-names = "default";
Index: renesas/arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts
+++ renesas/arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts
@@ -191,6 +191,11 @@
};
};
+&rwdt {
+ timeout-sec = <60>;
+ status = "okay";
+};
+
&scif0 {
pinctrl-0 = <&scif0_pins>, <&scif_clk_pins>;
pinctrl-names = "default";
Index: renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980.dtsi
+++ renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
@@ -118,6 +118,16 @@
#size-cells = <2>;
ranges;
+ rwdt: watchdog@e6020000 {
+ compatible = "renesas,r8a77980-wdt",
+ "renesas,rcar-gen3-wdt";
+ reg = <0 0xe6020000 0 0x0c>;
+ clocks = <&cpg CPG_MOD 402>;
+ power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
+ resets = <&cpg 402>;
+ status = "disabled";
+ };
+
gpio0: gpio@e6050000 {
compatible = "renesas,gpio-r8a77980",
"renesas,rcar-gen3-gpio";
