linux-kernel - [PATCH v10 06/10] arm64: dts: qcom: qcm6490-idp: Add PSCI SYSTEM

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Message-Id: <20250710-arm-psci-system_reset2-vendor-reboots-v10-6-b2d3b882be85@oss.qualcomm.com>
Date: Thu, 10 Jul 2025 14:45:48 +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>, Olof Johansson <olof@...om.net>,
        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>,
        Elliot Berman <elliotb317@...il.com>
Cc: Stephen Boyd <swboyd@...omium.org>, 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,
        Andre Draszik <andre.draszik@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        linux-samsung-soc@...r.kernel.org, Wei Xu <xuwei5@...ilicon.com>,
        linux-rockchip@...ts.infradead.org,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Sen Chu <sen.chu@...iatek.com>, Sean Wang <sean.wang@...iatek.com>,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
        Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Elliot Berman <quic_eberman@...cinc.com>,
        Shivendra Pratap <shivendra.pratap@....qualcomm.com>,
        Srinivas Kandagatla <srini@...nel.org>,
        Elliot Berman <elliot.berman@....qualcomm.com>,
        Konrad Dybcio <konradybcio@...nel.org>
Subject: [PATCH v10 06/10] arm64: dts: qcom: qcm6490-idp: Add PSCI
 SYSTEM_RESET2 types

From: Elliot Berman <elliot.berman@....qualcomm.com>

qcm6490-idp firmware supports vendor-defined SYSTEM_RESET2 types.
Describe the reset types: "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.

Co-developed-by: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
Signed-off-by: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Elliot Berman <elliot.berman@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcm6490-idp.dts | 7 +++++++
 arch/arm64/boot/dts/qcom/sc7280.dtsi     | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
index 7a155ef6492e176390faa3f2dbe419f5cfa62f0d..6de4b140ed10b0da72f3bffae524f65406d8f571 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
@@ -654,6 +654,13 @@ &pon_resin {
 	status = "okay";
 };
 
+&psci {
+	reset-types {
+		mode-bootloader = <0x10001 0x2>;
+		mode-edl = <0 0x1>;
+	};
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 64a2abd3010018e94eb50c534a509d6b4cf2473b..e6a99ef50b9b9ade9d2a71a14fcde429f8076dd5 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -857,7 +857,7 @@ pmu-a78 {
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
 	};
 
-	psci {
+	psci: psci {
 		compatible = "arm,psci-1.0";
 		method = "smc";
 

-- 
2.34.1