Re: [PATCH v6 2/2] arm64: dts: qcom: sm8550: extend the register range for UFS ICE

From: Konrad Dybcio
Date: Mon Sep 09 2024 - 07:00:11 EST


On 6.09.2024 7:56 PM, Bartosz Golaszewski wrote:
> From: Gaurav Kashyap <quic_gaurkash@xxxxxxxxxxx>
>
> 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@xxxxxxxxxxx>
> Co-developed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> ---
> 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..a000785f3915 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 0x10000>;

Same as p1

Konrad