Re: [PATCH v7 2/2] arm64: dts: qcom: sm8550: extend the register range for UFS ICE

[neil.armstrong@linaro.org]

On 01/10/2024 10:35, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> The Inline Crypto Engine (ICE) for UFS/EMMC supports the Hardware Key
> Manager (HWKM) to securely manage storage keys. Enable using this
> hardware on sm8550.
> 
> 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.
> 
> NOTE: Although wrapped keys cannot be independently generated and
> tested on this platform using generate, prepare and import key calls,
> there are non-kernel paths to create wrapped keys, and still use the
> kernel to program them into ICE. Hence, enabling wrapped key support
> on sm8550 too.
> 
> Signed-off-by: Gaurav Kashyap <quic_gaurkash@quicinc.com>
> Co-developed-by: Gaurav Kashyap <quic_gaurkash@quicinc.com>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm8550.dtsi | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> index 9dc0ee3eb98f..93c8aa32e411 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> @@ -2076,7 +2076,8 @@ opp-300000000 {
>   		ice: crypto@1d88000 {
>   			compatible = "qcom,sm8550-inline-crypto-engine",
>   				     "qcom,inline-crypto-engine";
> -			reg = <0 0x01d88000 0 0x8000>;
> +			reg = <0 0x01d88000 0 0x18000>;
> +
>   			clocks = <&gcc GCC_UFS_PHY_ICE_CORE_CLK>;
>   		};
>   
> 

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>