linux-kernel - Re: [PATCH 4/5] ARM: dts: qcom: msm8226: Add IMEM node

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Message-ID: <7d8ff3f4-fa9f-109e-b255-329803532e9f@linaro.org>
Date:   Sat, 20 May 2023 01:25:17 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Matti Lehtimäki <matti.lehtimaki@...il.com>,
        linux-arm-msm@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] ARM: dts: qcom: msm8226: Add IMEM node



On 19.05.2023 23:09, Matti Lehtimäki wrote:
> This is used for example for reboot-mode which enables userspace to
> signal the bootloader to go into the bootloader or recovery mode.
> 
> Signed-off-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
>  arch/arm/boot/dts/qcom-msm8226.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-msm8226.dtsi b/arch/arm/boot/dts/qcom-msm8226.dtsi
> index 006263373348..3628e48c1ec1 100644
> --- a/arch/arm/boot/dts/qcom-msm8226.dtsi
> +++ b/arch/arm/boot/dts/qcom-msm8226.dtsi
> @@ -646,6 +646,18 @@ smd-edge {
>  				label = "lpass";
>  			};
>  		};
> +
> +		imem: sram@...05000 {
> +			compatible = "qcom,msm8226-imem", "syscon", "simple-mfd";
> +			reg = <0xfe805000 0x1000>;
> +
> +			status = "disabled";
> +
> +			reboot-mode {
> +				compatible = "syscon-reboot-mode";
> +				offset = <0x65c>;
> +			};
> +		};
>  	};
>  
>  	timer {