Add PMU syscon, and syscon-reboot nodes to the Exynos990 dtsi.

Reboot of the Exynos990 SoC is handled by setting bit(SWRESET_TRIGGER[1])
of SWRESET register (PMU + 0x3a00).

Tested using the "reboot" command.

Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
---
 arch/arm64/boot/dts/exynos/exynos990.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos990.dtsi b/arch/arm64/boot/dts/exynos/exynos990.dtsi
index c1986f00e443..2619f821bc7c 100644
--- a/arch/arm64/boot/dts/exynos/exynos990.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos990.dtsi
@@ -227,6 +227,20 @@ wakeup-interrupt-controller {
 			};
 		};
 
+		pmu_system_controller: system-controller@15860000 {
+			compatible = "samsung,exynos990-pmu",
+				     "samsung,exynos7-pmu", "syscon";
+			reg = <0x15860000 0x10000>;
+
+			reboot: syscon-reboot {
+				compatible = "syscon-reboot";
+				regmap = <&pmu_system_controller>;
+				offset = <0x3a00>; /* SWRESET */
+				mask = <0x2>; /* SWRESET_TRIGGER */
+				value = <0x2>;
+			};
+		};
+
 		pinctrl_cmgp: pinctrl@15c30000 {
 			compatible = "samsung,exynos990-pinctrl";
 			reg = <0x15c30000 0x1000>;
-- 
2.45.2

Hi Igor

> -----Original Message-----
> From: Igor Belwon <igor.belwon@mentallysanemainliners.org>
> Sent: Wednesday, December 4, 2024 8:26 PM
> To: Rob Herring <robh@kernel.org>; Krzysztof Kozlowski
> <krzk+dt@kernel.org>; Conor Dooley <conor+dt@kernel.org>; Alim Akhtar
> <alim.akhtar@samsung.com>
> Cc: devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
linux-
> samsung-soc@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: [PATCH v2 2/2] arm64: dts: exynos990: Add pmu and syscon-reboot
> nodes
> 
> Add PMU syscon, and syscon-reboot nodes to the Exynos990 dtsi.
> 
> Reboot of the Exynos990 SoC is handled by setting bit(SWRESET_TRIGGER[1])
> of SWRESET register (PMU + 0x3a00).
> 
> Tested using the "reboot" command.
> 
> Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
> ---

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>

>  arch/arm64/boot/dts/exynos/exynos990.dtsi | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
[snip]
> 2.45.2

On Wed, 04 Dec 2024 15:55:59 +0100, Igor Belwon wrote:
> Add PMU syscon, and syscon-reboot nodes to the Exynos990 dtsi.
> 
> Reboot of the Exynos990 SoC is handled by setting bit(SWRESET_TRIGGER[1])
> of SWRESET register (PMU + 0x3a00).
> 
> Tested using the "reboot" command.
> 
> [...]

Applied, thanks!

[2/2] arm64: dts: exynos990: Add pmu and syscon-reboot nodes
      https://git.kernel.org/krzk/linux/c/d5b3944bec944b40e91cae82583ce11740af6f10

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>