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SubjectRe: [Linux-stm32] [PATCH v2 12/13] ARM: dts: stm32: enable optee firmware and SCMI support on STM32MP13
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On 2/25/22 16:13, Ahmad Fatoum wrote:
> Hello Gabriel,
>
> On 25.02.22 14:31, gabriel.fernandez@foss.st.com wrote:
>> From: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
>>
>> Enable optee and SCMI clocks support.
>>
>> Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
>> ---
>> arch/arm/boot/dts/stm32mp131.dtsi | 37 +++++++++++++++++++++++++++++++
>> 1 file changed, 37 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/stm32mp131.dtsi b/arch/arm/boot/dts/stm32mp131.dtsi
>> index 262de4eeb4ed..78eac53224d4 100644
>> --- a/arch/arm/boot/dts/stm32mp131.dtsi
>> +++ b/arch/arm/boot/dts/stm32mp131.dtsi
>> @@ -27,6 +27,43 @@ arm-pmu {
>> interrupt-parent = <&intc>;
>> };
>>
>> + scmi_sram: sram@2ffff000 {
>> + compatible = "mmio-sram";
>> + reg = <0x2ffff000 0x1000>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges = <0 0x2ffff000 0x1000>;
>> +
>> + scmi_shm: scmi_shm@0 {
>> + compatible = "arm,scmi-shmem";
>> + reg = <0 0x80>;
>> + };
>> + };
>> +
>> + firmware {
>> + optee {
>> + method = "smc";
>> + compatible = "linaro,optee-tz";
>> + };
>> +
>> + scmi: scmi {
>> + compatible = "linaro,scmi-optee";
> This compatible doesn't seem to be documented upstream. I am looking at v5.17-rc5.
> Do you have a reference detailing the difference between this conduit and
> plain arm,scmi-smc (as used with TF-A on the STM32MP151).
>
> Cheers,
> Ahmad

Hi

Ahmad,

it's on going.

https://lore.kernel.org/linux-arm-kernel/20211029102118.GG6526@e120937-lin/T/#mf46c83f0aadce3061ee93fa22159405f38d881a0

>
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + linaro,optee-channel-id = <0>;
>> + shmem = <&scmi_shm>;
>> +
>> + scmi_clk: protocol@14 {
>> + reg = <0x14>;
>> + #clock-cells = <1>;
>> + };
>> +
>> + scmi_reset: protocol@16 {
>> + reg = <0x16>;
>> + #reset-cells = <1>;
>> + };
>> + };
>> + };
>> clocks {
>> clk_axi: clk-axi {
>> #clock-cells = <0>;
>

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