[U-Boot-Users] NAND driver question

Zach Sadecki
2008-01-29T19:36:27Z

"nand write.jffs2" skips bad blocks. I always thought that was a bad
name as it has nothing to do with jffs2 other than skipping is how jffs2
handles bad blocks...

Zach

Craig Millen wrote:
> I have been experiencing a few problems when using a NAND flash for
> storage in u-boot.
>
> When I'm reading large files (7MB) from the NAND, periodically there
> will be a NAND ECC read error when using the following command:
>
> => nand read 400000 0 154000
> NAND read: device 0 offset 0x0, size 0x154000 1392640 bytes read:
> ERROR.
>
> After turning on debug, the problem is occurring in the nand_read_ecc
> function whereby the ecc check fails. After running it numerous times,
> there seems to be no correlation between pages that fail and appears to
> be completely random.
> Has anyone else had these problems?
>
>
> Furthermore, the "nand write" command doesn't skip bad blocks. Are you
> supposed to use a different command to write files to the NAND that
> skips the bad blocks?
>
>
> Thanks
> Craig
>
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