[U-Boot] [PATCH v3 4/7] arm: omap5: Add TEE loading support

[Tom Rini <trini@konsulko.com>]

On Tue, Nov 29, 2016 at 04:33:23PM -0600, Andrew F. Davis wrote:

> From: Harinarayan Bhatta <harinarayan@ti.com>
> 
> secure_tee_install is used to install and initialize a secure TEE OS such as
> Linaro OP-TEE into the secure world. This function takes in the address
> where the signed TEE image is loaded as an argument. The signed TEE image
> consists of a header (struct tee_header), TEE code+data followed by the
> signature generated using image signing tool from TI security development
> package (SECDEV). Refer to README.ti-secure for more information.
> 
> This function uses 2 new secure APIs.
> 
> 1. PPA_SERV_HAL_TEE_LOAD_MASTER - Must be called on CPU Core 0. Protected
>    memory for TEE must be reserved before calling this function. This API
>    needs arguments filled into struct ppa_tee_load_info. The TEE image is
>    authenticated and if there are no errors, the control passes to the TEE
>    entry point.
> 
> 2. PPA_SERV_HAL_TEE_LOAD_SLAVE - Called on other CPU cores only after
>    a TEE_LOAD_MASTER call. Takes no arguments. Checks if TEE was
>    successfully loaded (on core 0) and transfers control to the same TEE
>    entry point.
> 
> The code at TEE entry point is expected perform OS initialization steps
> and return back to non-secure world (U-Boot).
> 
> Signed-off-by: Harinarayan Bhatta <harinarayan@ti.com>
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Tom Rini <trini@konsulko.com>

-- 
Tom
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