[U-Boot-Users] SAM-BA 2.8 NAND scrub equals all blocks bad

Darrik Spaude dspaude at multitech.com
Wed Aug 6 17:37:50 CEST 2008


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




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