[PATCH 0/2] arm64: dts: renesas: r8a779h0/gray-hawk-single: Add watchdog support

[PATCH 0/2] arm64: dts: renesas: r8a779h0/gray-hawk-single: Add watchdog support

[Geert Uytterhoeven]

	Hi all,

This patch series adds watchdog timer support for the Renesas R-Car V4M
(R8A779H0) Soc and the Gray Hawk Single development board.

I intend to queue this in renesas-devel for v6.9.

Thanks for your comments!

Geert Uytterhoeven (1):
  arm64: dts: renesas: gray-hawk-single: Enable watchdog timer

Minh Le (1):
  arm64: dts: renesas: r8a779h0: Add RWDT node

 .../boot/dts/renesas/r8a779h0-gray-hawk-single.dts    |  5 +++++
 arch/arm64/boot/dts/renesas/r8a779h0.dtsi             | 11 +++++++++++
 2 files changed, 16 insertions(+)

-- 
2.34.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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[PATCH 1/2] arm64: dts: renesas: r8a779h0: Add RWDT node

[Geert Uytterhoeven]

From: Minh Le <minh.le.aj@renesas.com>

Add a device node for the RCLK Watchdog Timer (RWDT) on the Renesas
R-Car V4M (R8A779H0) SoC.

Signed-off-by: Minh Le <minh.le.aj@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Changes compared to the BSP:
  - Split in separate commits for SoC and board support,
  - Use TABs for indentation,
  - Add missing interrupts property.
---
 arch/arm64/boot/dts/renesas/r8a779h0.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
index f59d0dd25ca93822..f5a688e300d29a73 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
@@ -59,6 +59,17 @@ soc: soc {
 		#size-cells = <2>;
 		ranges;
 
+		rwdt: watchdog@e6020000 {
+			compatible = "renesas,r8a779h0-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 R8A779H0_PD_ALWAYS_ON>;
+			resets = <&cpg 907>;
+			status = "disabled";
+		};
+
 		pfc: pinctrl@e6050000 {
 			compatible = "renesas,pfc-r8a779h0";
 			reg = <0 0xe6050000 0 0x16c>, <0 0xe6050800 0 0x16c>,
-- 
2.34.1


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Re: [PATCH 1/2] arm64: dts: renesas: r8a779h0: Add RWDT node

[Wolfram Sang]

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On Thu, Feb 01, 2024 at 03:09:16PM +0100, Geert Uytterhoeven wrote:
> From: Minh Le <minh.le.aj@renesas.com>
> 
> Add a device node for the RCLK Watchdog Timer (RWDT) on the Renesas
> R-Car V4M (R8A779H0) SoC.
> 
> Signed-off-by: Minh Le <minh.le.aj@renesas.com>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>


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[PATCH 2/2] arm64: dts: renesas: gray-hawk-single: Enable watchdog timer

[Geert Uytterhoeven]

Enable the watchdog timer on the Gray Hawk Single board.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
index 716cb7622f167973..1c84fe7171d3fd85 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
@@ -65,6 +65,11 @@ scif_clk_pins: scif_clk {
 	};
 };
 
+&rwdt {
+	timeout-sec = <60>;
+	status = "okay";
+};
+
 &scif_clk {
 	clock-frequency = <24000000>;
 };
-- 
2.34.1


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Re: [PATCH 2/2] arm64: dts: renesas: gray-hawk-single: Enable watchdog timer

[Wolfram Sang]

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On Thu, Feb 01, 2024 at 03:09:17PM +0100, Geert Uytterhoeven wrote:
> Enable the watchdog timer on the Gray Hawk Single board.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>


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