linux-kernel - [PATCH] arm64: dts: qcom: hamoa: Add PSCI SYSTEM

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Message-ID: <20260209042700.1186392-1-xin.liu@oss.qualcomm.com>
Date: Sun,  8 Feb 2026 20:27:00 -0800
From: Xin Liu <xin.liu@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        xin.liu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
        jie.gan@....qualcomm.com
Subject: [PATCH] arm64: dts: qcom: hamoa: Add PSCI SYSTEM_RESET2 types

Add support for SYSTEM_RESET2 vendor-specific resets as
reboot-modes in the psci node.  Describe the resets: "bootloader"
will cause device to reboot and stop in the bootloader's fastboot
mode.  "edl" will cause device to reboot into "emergency download
mode", which permits loading images via the Firehose protocol.

Signed-off-by: Xin Liu <xin.liu@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/hamoa.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
index db65c392e618..2a490e0a8b5d 100644
--- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
@@ -450,6 +450,11 @@ system_pd: power-domain-system {
 			#power-domain-cells = <0>;
 			/* TODO: system-wide idle states */
 		};
+
+		reboot-mode {
+			mode-bootloader = <0x10001 0x2>;
+			mode-edl = <0 0x1>;
+		};
 	};
 
 	reserved-memory {
-- 
2.43.0