в файле auconfig.txt предварительно прописал какой файл грузить.
Далее такая картина.
U-Boot 2010.06-svn198 (Dec 08 2014 - 13:02:43)
Check spi flash controller v350... Found
Spi(cs1) ID: 0xC2 0x20 0x17 0xC2 0x20 0x17
Spi(cs1): Block:64KB Chip:8MB Name:"MX25L6406E"
envcrc 0x7108c8f3
ENV_SIZE = 0xfffc
In: serial
Out: serial
Err: serial
USB: scanning bus for devices... 2 USB Device(s) found
usb_stor_get_info->1406,blksz:512
1 Storage Device(s) found
Interface: USB
Device 0: Vendor: QUMO USB Rev: 1100 Prod: FLASH DRIVE
Type: Removable Hard Disk
Capacity: 15600.9 MB = 15.2 GB (31950720 x 512)
Partition 1: Filesystem: FAT32 "NO NAME "
reading auconfig.txt
strline: custom-x.cramfs.img
aucfgfile[0].name custom-x.cramfs.img
reading custom-x.cramfs.img
reading custom-x.cramfs.img
.....................................................................................................................
Press CTRL-C to abort autoboot in 0 seconds8192 KiB hi_sfc at 0:0 is now current device
CFG_BOOT_ADDR:0x0
0ff:0x84000000
### /UbootLogo UbootLogoload complete: 47143 bytes loaded to 0x8e800000
jpeg decoding ...
<<addr=0x8e800000, size=0xb85f9, vobuf=0x8e800000>>
<<imgwidth=800, imgheight=600, linebytes=1600>>
decode success!!!!
decode jpeg success.
decode jpeg!
srcAddr 0x82000000, dstAddr 0x82000000