Re: [PATCH] mtd: rawnand: fsl_elbc: Fix none ECC mode

From: Marek Behún
Date: Fri Jul 15 2022 - 05:23:38 EST


On Thu, 7 Jul 2022 20:43:28 +0200
Pali Rohár <pali@xxxxxxxxxx> wrote:

> Commit f6424c22aa36 ("mtd: rawnand: fsl_elbc: Make SW ECC work") added
> support for specifying ECC mode via DTS and skipping autodetection.
>
> But it broke explicit specification of HW ECC mode in DTS as correct
> settings for HW ECC mode are applied only when NONE mode or nothing was
> specified in DTS file.
>
> Also it started aliasing NONE mode to be same as when ECC mode was not
> specified and disallowed usage of ON_DIE mode.
>
> Fix all these issues. Use autodetection of ECC mode only in case when mode
> was really not specified in DTS file by checking that ecc value is invalid.
> Set HW ECC settings either when HW ECC was specified in DTS or it was
> autodetected. And do not fail when ON_DIE mode is set.
>
> Fixes: f6424c22aa36 ("mtd: rawnand: fsl_elbc: Make SW ECC work")
> Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>

Reviewed-by: Marek Behún <kabel@xxxxxxxxxx>