[U-Boot] booting os 'Unknown OS' (1) is not supported

[Detlev Zundel]

Hello Alexander,

> Thanks for your answer!
>
>>So again, try loading the image somewhere else in RAM and let U-Boot do
>>the copying to the correct place.
>
> It's not obvious for me how to do it.
> Might you have any guide or faq?

[...]

>> > ### main_loop: bootcmd="movi read kernel 0 40008000;movi read rootfs 0
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> > 41000000 100000;bootm 40008000 41000000"
                     ^^^^^^^^^^^^^^

Your bootmcd reads the kernel to 40008000 and then calls bootm to that
address.  Simple change those two places to, say, 40800000 by editing
bootcmd.  (Not knowing your system, I presume RAM starts at 4000,0000
and 4080,0000 then would be 8MiB after the beginning.  U-Boot will copy
the kernel to 4008000 so the kernel should not be bigger than 7.5MiB but
the other snippets from your log say the kernel is ~3.2MiB, so this
should be fine.

Cheers
  Detlev

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