Hi,
writing it down here so I know where to look it up
once I forget again: To have fw_printenv/fw_setenv
work you need a file /etc/fw_env.config with the
follwing line:
/dev/mmcblk0 0x40000 0x4000
(I have no reason to believe this is correct other
than that it works for me. I didn't read the source
or whatever.)
HTHSE,
Harald