Messages in this thread | | | From | Vignesh Raghavendra <> | Subject | Re: [PATCH v5 1/3] mtd: spi-nor: add support for is25wp256 | Date | Sun, 16 Jun 2019 18:14:16 +0530 |
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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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