On 6/7/05, Xie, Chao <
chao.xie@intel.com> wrote:
> Hi
> First, you should make clear which byte in OOB of your nand flash indicates the bad block. I think the spec has described it.
It is the standard location, byte 517.
> If you have erased the nand flash with the bad blocks, the bad block information may be lost, and you may get wrong bad block warnings.
I don't think there exist any bad block unaware erasure tools.
>
> Best Regards
> Chao
> -----Original Message-----
> From: yaffs-admin@stoneboat.aleph1.co.uk [mailto:yaffs-admin@stoneboat.aleph1.co.uk] On Behalf Of wang dengyi
> Sent: 2005年6月7日 1:58
> To: yaffs@stoneboat.aleph1.co.uk
> Subject: [Yaffs] Bad eraseblock
>
> Hello,
>
> My embedded system is AT91RM9200(arm9) with linux
> 2.6.11.10. My NAND flash is Toshiba TC58DVG02A1FT00.
>
> The flash has 8192 blocks. When linux boots, it
> reports that the first 2105 blocks are "Bad
> eraseblock". What does it mean? I check the code. It's
> in the function create_bbt(). Seems it reads the flash
> and compares with some pattern then shows the error
> message. Does it affect anything at all?
>
--
Coywolf Qi Hunt
http://ahbl.org/~coywolf/
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