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Message-ID: <f23f3db8-08a7-78a9-a516-de211c53b6f4@linaro.org>
Date:   Wed, 14 Dec 2022 12:27:08 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Sibi Sankar <quic_sibis@...cinc.com>, andersson@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        manivannan.sadhasivam@...aro.org
Cc:     agross@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        konrad.dybcio@...ainline.org, amit.pundir@...aro.org,
        regressions@...mhuis.info, sumit.semwal@...aro.org,
        will@...nel.org, catalin.marinas@....com, robin.murphy@....com
Subject: Re: [PATCH 1/4] arm64: dts: qcom: Introduce a carveout for modem
 metadata

On 13/12/2022 15:07, Sibi Sankar wrote:
> Introduce a new carveout for modem metadata. This will serve as a
> replacement for the memory region used by MSA to authenticate modem
> ELF headers.
> 
> Signed-off-by: Sibi Sankar <quic_sibis@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi    | 6 ++++++
>  arch/arm64/boot/dts/qcom/msm8996.dtsi                  | 9 +++++++++
>  arch/arm64/boot/dts/qcom/msm8998.dtsi                  | 9 +++++++++
>  arch/arm64/boot/dts/qcom/sc7180-idp.dts                | 7 ++++++-
>  arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi           | 7 ++++++-
>  arch/arm64/boot/dts/qcom/sc7280-herobrine-lte-sku.dtsi | 7 ++++++-
>  arch/arm64/boot/dts/qcom/sdm845.dtsi                   | 9 +++++++++
>  7 files changed, 51 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi
> index 5b47b8de69da..4242f8587c19 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996-xiaomi-common.dtsi
> @@ -127,6 +127,12 @@
>  			reg = <0x0 0xf6f00000 0x0 0x100000>;
>  			no-map;
>  		};
> +
> +		/delete-node/ memory@...00000;
> +		mdata_mem: memory@...00000 {
> +			reg = <0x0 0xf7100000 0x0 0x4000>;
> +			no-map;
> +		};
>  	};
>  
>  	vph_pwr: vph-pwr-regulator {
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index cc65f52bb80f..3f5fb08e2341 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -462,6 +462,11 @@
>  			reg = <0x0 0x91500000 0x0 0x200000>;
>  			no-map;
>  		};
> +
> +		mdata_mem: memory@...00000 {
> +			reg = <0x0 0x91700000 0x0 0x4000>;
> +			no-map;
> +		};
>  	};
>  
>  	rpm-glink {
> @@ -2458,6 +2463,10 @@
>  				memory-region = <&mpss_mem>;
>  			};
>  
> +			metadata {

Does it pass dtbs_check?

Best regards,
Krzysztof

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