linux-kernel - [PATCH v18 08/10] arm64: dts: qcom: lemans: Add psci reboot-modes

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Message-Id: <20251223-arm-psci-system_reset2-vendor-reboots-v18-8-32fa9e76efc3@oss.qualcomm.com>
Date: Tue, 23 Dec 2025 22:37:39 +0530
From: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        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>,
        Andy Yan <andy.yan@...k-chips.com>,
        Bartosz Golaszewski <brgl@...nel.org>
Cc: Florian Fainelli <florian.fainelli@...adcom.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Mukesh Ojha <mukesh.ojha@....qualcomm.com>,
        Andre Draszik <andre.draszik@...aro.org>,
        Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        Shivendra Pratap <shivendra.pratap@....qualcomm.com>,
        Srinivas Kandagatla <srini@...nel.org>
Subject: [PATCH v18 08/10] arm64: dts: qcom: lemans: Add psci reboot-modes

Add PSCI SYSTEM_RESET2 reboot-modes for lemans based boards, for use by
the psci_reboot_mode driver.

The following modes are defined:
- bootloader: reboot into fastboot mode for fastboot flashing.
- edl: reboot into emergency download mode for image loading via
  the Firehose protocol.

Support for these modes is firmware dependent.

Signed-off-by: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 0b154d57ba24e69a9d900f06bbb22baa2781cc3f..cc70316d6949c8a36280b85931c4adec9cd60f62 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -698,6 +698,11 @@ system_pd: power-domain-system {
 			#power-domain-cells = <0>;
 			domain-idle-states = <&cluster_sleep_apss_rsc_pc>;
 		};
+
+		reboot-mode {
+			mode-bootloader = <0x80010001 0x2>;
+			mode-edl = <0x80000000 0x1>;
+		};
 	};
 
 	reserved-memory {

-- 
2.34.1