Yeah I have given you the wrong command line.
This one was to see what happens while booting the whole image file.

But the one that should work for the network is these,
console=ttyS0,115200 ip=dhcp root=/dev/nfs rw

See image for a fully overview.


And about the fault..
SW != 9000
error in receive
error during t1 transfer

Use dreamup, with recovery bad sectors and use the serial port.
Sometimes it's better to do it several times until all bad sectors are marked on the nand flash chip.
Use a image file for the process.

However this error may also come from the tuner, try it without.