Re: [RFC PATCH] mtd: spinand: core: Properly fill the OOB area.

From: Miquel Raynal
Date: Fri Aug 06 2021 - 16:03:13 EST


On Thu, 2021-06-17 at 11:08:42 UTC, Daniel Palmer wrote:
> The comment in spinand_write_to_cache_op() says that
> spinand_ondie_ecc_prepare_io_req() should 0xff fill the OOB
> area but it doesn't.
>
> This causes the OOB area to get filled with zeros
> and anytime the first page in a block the bad block marker
> is cleared and it becomes a bad block on the next boot.
>
> This was observed on Longsys FORSEE branded parts and
> might be specific to these parts.
>
> Signed-off-by: Daniel Palmer <daniel@xxxxxxxx>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel