Все получилось. Конфигурация во вложении.
Благодарю!
U-Boot> RomBOOT
>Start AT91Bootstrap...
Copy application ...
Run ...
U-Boot 1.1.5 (Oct 19 2009 - 14:11:48)
DRAM: 64 MB
DataFlash:AT45DB321
Nb pages: 8192
Page Size: 528
Size= 4325376 bytes
Logical address: 0xC0000000
Area 0: C0000000 to C0003FFF (RO)
Area 1: C0004000 to C0007FFF
Area 2: C0008000 to C0037FFF (RO)
Area 3: C0038000 to C041FFFF
In: serial
Out: serial
Err: serial
KS8721 PHY Detected
ETH: 100M Full Duplex.
End of Autonegociation
U-Boot>