linux-kernel - [PATCH v2 3/4] arm64: dts: exynos: gs101-pixel-common: add nvmem-reboot-mode

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Message-Id: <20250524-b4-max77759-mfd-dts-v2-3-b479542eb97d@linaro.org>
Date: Sat, 24 May 2025 06:21:30 +0100
From: André Draszik <andre.draszik@...aro.org>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH v2 3/4] arm64: dts: exynos: gs101-pixel-common: add
 nvmem-reboot-mode

Add the 'nvmem-reboot-mode' which is used to communicate a requested
boot mode to the boot loader.

Signed-off-by: André Draszik <andre.draszik@...aro.org>

---
v2:
- add dm-verity-device-corrupted
- update commit message slightly
---
 .../boot/dts/exynos/google/gs101-pixel-common.dtsi      | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
index de5c8d236b705505c0745827c5c6b67d94ba6227..cd8e1b8a10b111190b984e104f749d04514d0449 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
@@ -60,6 +60,21 @@ button-power {
 		};
 	};
 
+	reboot-mode {
+		compatible = "nvmem-reboot-mode";
+		nvmem-cells = <&nvmem_reboot_mode>;
+		nvmem-cell-names = "reboot-mode";
+		mode-bootloader = <0x800000fc>;
+		mode-charge = <0x8000000a>;
+		mode-dm-verity-device-corrupted = <0x80000050>;
+		mode-fastboot = <0x800000fa>;
+		mode-reboot-ab-update = <0x80000052>;
+		mode-recovery = <0x800000ff>;
+		mode-rescue = <0x800000f9>;
+		mode-shutdown-thermal = <0x80000051>;
+		mode-shutdown-thermal-battery = <0x80000051>;
+	};
+
 	/* TODO: Remove this once PMIC is implemented  */
 	reg_placeholder: regulator-0 {
 		compatible = "regulator-fixed";
@@ -224,7 +239,7 @@ nvmem-layout {
 				#address-cells = <1>;
 				#size-cells = <1>;
 
-				reboot-mode@0 {
+				nvmem_reboot_mode: reboot-mode@0 {
 					reg = <0x0 0x4>;
 				};
 

-- 
2.49.0.1151.ga128411c76-goog