Thank you, it is working know. I tried 2 times yesterday … the third is the good one. Very strange. I had to upgrade with an intermediate version to use the last one.
The board is the one provided to my collegue at the Yocto training:
Model: Toradex Colibri iMX7 Solo 256MB V1.1A, Serial# 02794246
WARNING: This module uses an early tapeout/stepping of the i.MX 7 SoC which suffers a NAND flash issue requiring a software workaround. This U-Boot version still implements this workaround, but future U-Boot versions provided by Toradex will not use the workaround anymore. You must use a newer Colibri iMX7 (V1.1B or la ter) to use future software versions. For evaluation and testing purposes it will be possible to keep the current U-Boot and only update the kernel and root filesystem.
U-boot cannot be updated, and the procedure seems specific:
NOTE: The U-Boot provided with this BSP version does not support the
early tapeout/stepping of i.MX 7 used on your module. You still can
update the kernel/device-tree/rootfs manually using:
# run prepare_ubi && run update_kernel && run update_fdt && run update_rootfs
Anyway, it is working now, thank you! I will order a new one to be able to use the latest u-boot