linux-kernel - Re: [PATCH v6 1/2] arm64: dts: qcom: sm8650: extend the register range for UFS ICE

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Message-ID: <486ec029-dc10-48bf-af8d-c0a8426d3247@kernel.org>
Date: Mon, 9 Sep 2024 12:59:28 +0200
From: Konrad Dybcio <konradybcio@...nel.org>
To: Bartosz Golaszewski <brgl@...ev.pl>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org,
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
 Gaurav Kashyap <quic_gaurkash@...cinc.com>,
 Om Prakash Singh <quic_omprsing@...cinc.com>,
 Neil Armstrong <neil.armstrong@...aro.org>
Subject: Re: [PATCH v6 1/2] arm64: dts: qcom: sm8650: extend the register
 range for UFS ICE

On 6.09.2024 7:56 PM, Bartosz Golaszewski wrote:
> From: Gaurav Kashyap <quic_gaurkash@...cinc.com>
> 
> The Inline Crypto Engine (ICE) for UFS/EMMC supports the Hardware Key
> Manager (HWKM) to securely manage storage keys. Enable using this
> hardware on sm8650.
> 
> This requires us to increase the register range: HWKM is an additional
> piece of hardware sitting alongside ICE, and extends the old ICE's
> register space.
> 
> Reviewed-by: Om Prakash Singh <quic_omprsing@...cinc.com>
> Tested-by: Neil Armstrong <neil.armstrong@...aro.org>
> Signed-off-by: Gaurav Kashyap <quic_gaurkash@...cinc.com>
> Co-developed-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8650.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> index 01ac3769ffa6..54b119d6cf92 100644
> --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> @@ -2595,7 +2595,7 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
>  		ice: crypto@...8000 {
>  			compatible = "qcom,sm8650-inline-crypto-engine",
>  				     "qcom,inline-crypto-engine";
> -			reg = <0 0x01d88000 0 0x8000>;
> +			reg = <0 0x01d88000 0 0x10000>;

I see mentions of this being a bit longer, any reasons not to stretch
it to full size?

Konrad