linux-kernel - Re: [PATCH v3] arm64: dts: qcom: sm8450: Add IMEM and PIL info region

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Date:   Wed, 22 Feb 2023 17:06:47 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Mukesh Ojha <quic_mojha@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, elder@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] arm64: dts: qcom: sm8450: Add IMEM and PIL info region



On 22.02.2023 16:30, Mukesh Ojha wrote:
> Add a simple-mfd representing IMEM on SM8450 and define the PIL
> relocation info region, so that post mortem tools will be able
> to locate the loaded remoteprocs.
> 
> Signed-off-by: Mukesh Ojha <quic_mojha@...cinc.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
> Change in v3:
>  - Sorted by address.
> 
> Changes in v2:
>  -  put ranges after regs and corrected the sram node position.
> 
>  arch/arm64/boot/dts/qcom/sm8450.dtsi | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> index 1a744a3..7671f15 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> @@ -3689,6 +3689,20 @@
>  			};
>  		};
>  
> +		sram@...aa000 {
> +			compatible = "qcom,sm8450-imem", "syscon", "simple-mfd";
> +			reg = <0 0x146aa000 0 0x1000>;
> +			ranges = <0 0 0x146aa000 0x1000>;
> +
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +
> +			pil-reloc@94c {
> +				compatible = "qcom,pil-reloc-info";
> +				reg = <0x94c 0xc8>;
> +			};
> +		};
> +
>  		apps_smmu: iommu@...00000 {
>  			compatible = "qcom,sm8450-smmu-500", "arm,mmu-500";
>  			reg = <0 0x15000000 0 0x100000>;