After the conversion to DM_SERIAL in commit 01f372d8d6 ("udoo_neo:
Select DM_SERIAL and drop iomux board level init") the SPL log is gone
and the U-Boot proper log becomes incomplete:
Core: 80 devices, 18 uclasses, devicetree: separate
MMC: FSL_SDHC: 1, FSL_SDHC: 2
Loading Environment from MMC... OK
In: serial@2020000
Out: serial@2020000
Err: serial@2020000
Net: eth0: ethernet@2188000
Hit any key to stop autoboot: 0
Introduce the u-boot.dtsi file that passes the u-boot,dm-pre-reloc
properties to the relevant nodes so that UART can be used early in SPL.
With this change, the complete SPL and U-Boot messages are seen again.
Signed-off-by: Fabio Estevam <festevam@denx.de>
