Serial Download Boot on i.MX8MN EVK Board

[Fabio Estevam]

Hi Thomas,

On Mon, May 30, 2022 at 9:50 AM Thomas Schaefer
<Thomas.Schaefer at kontron.com> wrote:

> But anyway, the patch above is the missing piece, now the DDR3L EVK boots fine over USB.

Ok, great.

> >I am using the NXP lf_v2.4 branch instead.
>
> We are using NXP imx_5.4.47_2.2.0 branch because it is documented this way in the board docs. Is there a reason why you prefer lf_v2.4 ?

Yes, lf_v2.4 allows passing the IMX_BOOT_UART_BASE as a build parameter.

Passing IMX_BOOT_UART_BASE is not needed for imx8mn-evk, but other
boards need to specify it so that a different UART port can be used
by TF-A.

Regards,

Fabio Estevam