[PATCH 09/10] ARM: dts: stm32mp: Add OP-TEE "/firmware" node to SPL dtb

[Patrick DELAUNAY]

Hi,

On 8/26/21 11:42 PM, Alexandru Gagniuc wrote:
> This node is required in SPL when booting an OP-TEE payload. Add it to
> the SPL devicetree.
>
> Signed-off-by: Alexandru Gagniuc <mr.nuke.me at gmail.com>
> ---
>   arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> index 0101962ea5..2e65b9b4d5 100644
> --- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> @@ -31,6 +31,7 @@
>   		optee {
>   			compatible = "linaro,optee-tz";
>   			method = "smc";
> +			u-boot,dm-spl;
>   		};
>   	};
>   


NAK = the OP-TEE nodes are ADDED by the OP-TEE firmware

when SPL is running the OP-TEE firmware is not running and the OP-TEE 
driver is not probed

=> this nodes are not required

This node should be present ONLY for backyard compatibility (STM32IMAGE 
support in U-Boot trusted boot)


regards


Patrick