linux-kernel - [PATCH v15 11/14] arm64: dts: qcom: lemans-evk: Add PSCI SYSTEM

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Message-Id: <20250922-arm-psci-system_reset2-vendor-reboots-v15-11-7ce3a08878f1@oss.qualcomm.com>
Date: Mon, 22 Sep 2025 19:10:21 +0530
From: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
To: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sebastian Reichel <sre@...nel.org>, Rob Herring <robh@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Souvik Chakravarty <Souvik.Chakravarty@....com>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Andy Yan <andy.yan@...k-chips.com>,
        Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Arnd Bergmann <arnd@...db.de>, Konrad Dybcio <konradybcio@...nel.org>,
        cros-qcom-dts-watchers@...omium.org, Vinod Koul <vkoul@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Florian Fainelli <florian.fainelli@...adcom.com>,
        Moritz Fischer <moritz.fischer@...us.com>,
        John Stultz <john.stultz@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Mukesh Ojha <mukesh.ojha@....qualcomm.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Andre Draszik <andre.draszik@...aro.org>,
        Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org,
        Elliot Berman <quic_eberman@...cinc.com>,
        Shivendra Pratap <shivendra.pratap@....qualcomm.com>,
        Srinivas Kandagatla <srini@...nel.org>
Subject: [PATCH v15 11/14] arm64: dts: qcom: lemans-evk: Add PSCI
 SYSTEM_RESET2 types

Add support for SYSTEM_RESET2 vendor-specific resets in
lemans-evk as reboot-modes.  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: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans-evk.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index c7dc9b8f445787a87ba4869bb426f70f14c1dc9f..09460441888a7011ff613c4fe9fa4b6872e12172 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -587,6 +587,13 @@ &pcie1_phy {
 	status = "okay";
 };
 
+&psci {
+	reboot-mode {
+		mode-bootloader = <0x10001 0x2>;
+		mode-edl = <0 0x1>;
+	};
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };

-- 
2.34.1