On Sat, Jun 11, 2022 at 2:50 PM Otavio Salvador
<otavio.salvador@...> wrote:

I'm trying to build Yocto dunfell for imx51evk derived board.

The board has only sd card with 1 dram of ram.

imx51evk has 512MB of RAM.

You need to adapt the DDR for your specific board to be able to boot it.

It has been ages since I used those. @Fabio Estevam have you tried them lately?

Yes, it boots well with the top of tree U-Boot:

U-Boot 2022.07-rc4-00007-g57bd363de7 (Jun 11 2022 - 17:26:16 -0300)

CPU: Freescale i.MX51 rev3.0 at 800 MHz
Reset cause: POR
Model: Freescale i.MX51 Babbage Board
Board: MX51EVK
DRAM: 512 MiB
Core: 20 devices, 9 uclasses, devicetree: separate
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
In: serial
Out: serial
Err: serial
Net: No ethernet found.
Hit any key to stop autoboot: 0