Re: [PATCH v2] mtd: spinand: add support for Foresee FS35ND01G-S1Y2

Daniel Palmer
2021-04-07T12:00:56Z

Hi Miquel,

On Wed, 7 Apr 2021 at 17:02, Miquel Raynal <miquel.raynal@bootlin.com> wrote:
> You may look at micron_8_ecc_get_status() helper to guide you. But
> IMHO, if there are 0-3 bf, you should probably assume there were 3 bf
> and return 3, if there were 4, return 4, if it's uncorrectable return
> -EBADMSG otherwise -EINVAL.

Understood.

> We should verify that this does not mess with UBI wear leveling
> though. Please check that returning 3-bit errors no matter the
> actual number of flipped bits does not lead UBI to move the data away
> (I think it's fine but we need to be sure otherwise the implementation
> proposal is not valid).

Ok. I'm not sure how to check that yet but I'll look into it.

Thanks for all of the help on this.

Cheers,