I have been trying to recover from ignorance on my part when I used Atmel's SAM-BA 2.8 utility to scrub the NAND on my board. Scrubbing should be more thorough than erasing, right??? Oops. So, I thought that maybe I could use u-boot (pulled from DataFlash via AT91SAM9G20) to recover my NAND, but I haven't had any success. U-boot (1.3.3) has scrub and erase capabilities, but all efforts still result in all blocks being bad. I found a "createbbt" patch and that still results in all blocks being bad.

Any ideas on how to recover the NAND to a state where u-boot can determine REAL bad blocks? Or did the Atmel SAM-BA utility truly destroy the NAND and I should replace it?

Thanks for the help, Darrik