Previous solution copy image to nand. Somtimes imposible boot device to copy image.  There is another, which can help boot device: 1. Stop booting device by pressing "Enter" when u-boot starting. 2.  Enter next commands i2c mw 0x34 0x12 0x1f i2c mw 0x34 0x29 0x00 i2c mw 0x34 0x12 0x5f i2c mw 0x34 0x29 0x58 3. Continue booting by send command:  boot 4. In file /boot/boot.cmd add next lines: i2c mw 0x34 0x12 0x1f i2c mw