imx8mn SPL serial output does not work after powerup

[Fabio Estevam]

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?