sorry for delay, i give that command
setenv bootargs_console 'console=ttyS0,115200 root=/dev/mmcblk0p2'
saveenv
reset
but now i have still an "Error: unrecognized/unsupported machine ID (r1 = 0x0000020f)"
now i'll try to reset bootargs....
EDIT: ok, now i give that command:
setenv mainlineLinux yes
setenv arcNumber 2097
saveenv
reset
and now system works! I have the login screen
