linux-kernel - Re: [PATCH v17 12/12] arm64: dts: qcom: talos: Add PSCI SYSTEM

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Message-ID: <20251110123941.deecglwnwvhl3soe@hu-mojha-hyd.qualcomm.com>
Date: Mon, 10 Nov 2025 18:09:41 +0530
From: Mukesh Ojha <mukesh.ojha@....qualcomm.com>
To: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
Cc: 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>,
        Dmitry Baryshkov <dmitry.baryshkov@....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>,
        Xin Liu <xin.liu@....qualcomm.com>,
        Srinivas Kandagatla <srini@...nel.org>,
        Song Xue <quic_songxue@...cinc.com>
Subject: Re: [PATCH v17 12/12] arm64: dts: qcom: talos: Add PSCI
 SYSTEM_RESET2 types

On Sun, Nov 09, 2025 at 08:07:25PM +0530, Shivendra Pratap wrote:
> 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: Song Xue <quic_songxue@...cinc.com>
> Signed-off-by: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/talos.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi
> index eb6f69be4a82ea47486f5c8e39519d0952b146cb..c946d07c540f5ae40f147ccb06539ecf0de18df5 100644
> --- a/arch/arm64/boot/dts/qcom/talos.dtsi
> +++ b/arch/arm64/boot/dts/qcom/talos.dtsi
> @@ -612,6 +612,11 @@ cluster_pd: power-domain-cluster {
>  					      &cluster_sleep_1
>  					      &cluster_sleep_2>;
>  		};
> +
> +		reboot-mode {
> +			mode-bootloader = <0x10001 0x2>;
> +			mode-edl = <0 0x1>;
> +		};
>  	};

Feel free to add

Reviewed-by: Mukesh Ojha <mukesh.ojha@....qualcomm.com>

for Lemans, Monaco, Talos ..

>  
>  	reserved-memory {
> 
> -- 
> 2.34.1
> 

-- 
-Mukesh Ojha