Hi.
Aras Vaichas wrote:
> Thomas Gleixner wrote:
>>>Surely it's not the easy to "break" a NAND chip? Can my original NAND be recovered?
>>>
>> It's quite easy, if the timing is wrong or if the rdy/busy check is not
>> reliable.
>
> Is there a utility that writes to every single page, reads back the data and then marks the pages correctly? Or are those "bad eraseblocks" permanently lost?
>
AFAIK, the eraseall can't erase blocks already marked bad.
To do it i'm just comment out a 'goto' near "attempt to erase bad block"
warning in drivers/mtd/nand/nand_base.c
Not the best way, though there were no appropriate ioctl to do it else.
You'll have to reboot after eraseall, since bad block list still reside
in memory.
Regards.
Timofei.
(text/plain)