[PATCH v2] arm: dts: imx8ulp: Update device tree to fix boot issue on i.MX8ULP EVK

[Fabio Estevam]

Hi Alice,

On Wed, Nov 19, 2025 at 1:00 AM <alice.guo at oss.nxp.com> wrote:
>
> From: Alice Guo <alice.guo at nxp.com>
>
> mu at 27020000 is required for communication with ELE firmware, and
> lpuart5 is the standard output device. Both peripherals must be
> available before U-Boot relocation. Use bootph-all instead of
> bootph-pre-ram so these nodes are retained across all boot phases.

This is much better, thanks.

> The driver model for watchdog timer is not enabled yet, so disable wdog3
> temporarily.

This change should be in a separate patch.