[U-Boot] [PATCH] apalis_imx6: allocate specific region of memory to OP-TEE

[Max Krummenacher]

On Mon, 2019-09-02 at 18:21 -0300, Ricardo Salveti wrote:
> OP-TEE uses the memory region defined by the maximum DRAM address minus
> CONFIG_OPTEE_TZDRAM_SIZE, so subtract CONFIG_OPTEE_TZDRAM_SIZE from the
> available DRAM size to avoid conflicts.
> 
> Signed-off-by: Ricardo Salveti <ricardo at foundries.io>
> ---
>  board/toradex/apalis_imx6/apalis_imx6.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/board/toradex/apalis_imx6/apalis_imx6.c b/board/toradex/apalis_imx6/apalis_imx6.c
> index 6421a22c25..fa7fcc8d46 100644
> --- a/board/toradex/apalis_imx6/apalis_imx6.c
> +++ b/board/toradex/apalis_imx6/apalis_imx6.c
> @@ -75,6 +75,11 @@ int dram_init(void)
>  	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
>  				    (ulong)imx_ddr_size());
>  
> +	/* Subtract the defined OPTEE runtime firmware length */
> +#ifdef CONFIG_OPTEE_TZDRAM_SIZE
> +	gd->ram_size -= CONFIG_OPTEE_TZDRAM_SIZE;
> +#endif
> +
>  	return 0;
>  }
> 

>  
Acked-by: Max Krummenacher <max.krummenacher at toradex.com>