Hello, don't know if you got yourself out of this, but if you can interrupt u-boot, you may be able to load a working kernel via tftp and the reflash from there.
I think this is explained somewhere in this (very long) thread:
Hello, don't know if you got yourself out of this, but if you can interrupt u-boot, you may be able to load a working kernel via tftp and the reflash from there.
I think this is explained somewhere in this (very long) thread: