I have the same problem and currently I am working on it.
However, I still have no reasonable idea what to do. I wrote the image
via dd into the nand device and thought this might be the problem and
using nandwrite could solve it ... but as I see in your post it is not.

If you have some success, pleas let me know it.

Thanks,

Christian

PS: sorry for posting this message previously with a wrong subject (of 
another thread)