log：
Booting from nand ...
HW ECC BCH8 Selected
NAND read: device 0 offset 0xc00000, size 0x800000
8388608 bytes read: OK
## Booting kernel from Legacy Image at 80200000 ...
Image Name: Linux-3.2.0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3509528 Bytes = 3.3 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... Bad Data CRC
ERROR: can't get kernel image!
开关机概率性的出现此问题，请问这个可能是什么引起的？
