Re: [PATCH] mtd: spinand: winbond: add support for W25N04LV
Dominique Martinet <[email protected]>
| Newsgroups | org.infradead.lists.linux-mtd,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Huasin Liao wrote on Sun, Aug 16, 2026 at 05:31:24PM +0800:
> diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c
> index 9b78c1e6cbc9..892220a12b22 100644
> --- a/drivers/mtd/nand/spi/winbond.c
> +++ b/drivers/mtd/nand/spi/winbond.c
> @@ -345,6 +345,35 @@ static const struct mtd_ooblayout_ops w25n02kv_ooblayout = {
> .free = w25n02kv_ooblayout_free,
> };
>
> +static int w25n04lv_ooblayout_ecc(struct mtd_info *mtd, int section,
> + struct mtd_oob_region *region)
> +{
> + if (section > 7)
> + return -ERANGE;
> +
> + region->offset = 128 + (16 * section);
> + region->length = 13;
> +
> + return 0;
> +}
> +
> +static int w25n04lv_ooblayout_free(struct mtd_info *mtd, int section,
> + struct mtd_oob_region *region)
> +{
> + if (section > 7)
> + return -ERANGE;
> +
> + region->offset = (16 * section) + 2;
> + region->length = 14;
> +
> + return 0;
> +}
> +
> +static const struct mtd_ooblayout_ops w25n04lv_ooblayout = {
> + .ecc = w25n04lv_ooblayout_ecc,
> + .free = w25n04lv_ooblayout_free,
FWIW, these two are the same as what I consolidated in
https://lore.kernel.org/r/[email protected]
using oobsize, so we probably want to reuse that here too
(Should I split the patch?)
--
Dominique Martinet | Asmadeus
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