imx8mn SPL serial output does not work after powerup

[Heiko Thiery]

Am Mo., 13. Juni 2022 um 21:43 Uhr schrieb Heiko Thiery
<heiko.thiery at gmail.com>:
>
> Hi,
>
> Am Mo., 13. Juni 2022 um 21:28 Uhr schrieb Fabio Estevam <festevam at gmail.com>:
> >
> > Hi Heiko,
> >
> > On Mon, Jun 13, 2022 at 4:16 PM Heiko Thiery <heiko.thiery at gmail.com> wrote:
> >
> > > Can anyone confirm the behavior?
> >
> > imx8mn ddr4 evk prints the SPL part just fine.
> >
> > Take a look at arch/arm/dts/imx8mn-ddr4-evk-u-boot.dtsi .
> >
> > It passes:
> >
> > &uart2 {
> >       u-boot,dm-spl;
> > };
> >
> > &pinctrl_uart2 {
> >      u-boot,dm-spl;
> > };
> >
> > Are you doing the same for the imx8mn ddr3 u-boot dtsi?
>
> Indeed these are missing. Now I see the whole output from U-Boot but
> the output from SPL is still missing. When enabloing SPL_DM_SERIAL the
> board does not start.


I now did include the whole "imx8mn-ddr4-evk-u-boot.dtsi" like it is
done in "imx8mn-evk-u-boot.dtsi". Then it works.

> --
> Heiko