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SubjectRe: [PATCH v5 1/3] mtd: spi-nor: add support for is25wp256
Date
Hi,

On 12-Jun-19 4:17 PM, Sagar Shrikant Kadam wrote:
[...]

> @@ -4129,7 +4137,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
> if (ret)
> return ret;
>
> - if (nor->addr_width) {
> + if (nor->addr_width && JEDEC_MFR(info) != SNOR_MFR_ISSI) {
> /* already configured from SFDP */

Hmm, why would you want to ignore addr_width that's read from SFDP table?

Regards
Vignesh


> } else if (info->addr_width) {
> nor->addr_width = info->addr_width;
> diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
> index b3d360b..ff13297 100644
> --- a/include/linux/mtd/spi-nor.h
> +++ b/include/linux/mtd/spi-nor.h
> @@ -19,6 +19,7 @@
> #define SNOR_MFR_ATMEL CFI_MFR_ATMEL
> #define SNOR_MFR_GIGADEVICE 0xc8
> #define SNOR_MFR_INTEL CFI_MFR_INTEL
> +#define SNOR_MFR_ISSI 0x9d /* ISSI */
> #define SNOR_MFR_ST CFI_MFR_ST /* ST Micro */
> #define SNOR_MFR_MICRON CFI_MFR_MICRON /* Micron */
> #define SNOR_MFR_MACRONIX CFI_MFR_MACRONIX
>

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