【急】分区后Uboot启动不了

xiatiandefeng

通过tftp移植嵌入式linux，还分了区，之后启动终端后显示如下：
U-Boot SPL 2011.09-00000-g2cfed4f-dirty (Jan 23 2014 - 09:43:37)
Texas Instruments Revision detection unimplemented
Booting from NAND...
mkimage signature not found - ih_magic = 40000506
Assuming u-boot.bin ..
到这里就卡在这里了，请飞凌大神帮帮忙，谢谢了