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mtd: spi-nor: Enable QE bit for ISSI flash

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Enable QE bit for ISSI flash chips.

QE enablement logic is similar to what Macronix
has, so reuse the existing code itself.

Cc: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Jagan Teki
2020-04-20 15:36:06 +05:30
parent e67cd814ee
commit 5bf3f3dd11
2 changed files with 2 additions and 0 deletions
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1
drivers/mtd/spi/spi-nor-core.c
View File

@@ -325,6 +325,7 @@ static int set_4byte(struct spi_nor *nor, const struct flash_info *info,
case SNOR_MFR_MICRON: case SNOR_MFR_MICRON:
/* Some Micron need WREN command; all will accept it */ /* Some Micron need WREN command; all will accept it */
need_wren = true; need_wren = true;
case SNOR_MFR_ISSI:
case SNOR_MFR_MACRONIX: case SNOR_MFR_MACRONIX:
case SNOR_MFR_WINBOND: case SNOR_MFR_WINBOND:
if (need_wren) if (need_wren)

1
include/linux/mtd/spi-nor.h
View File

@@ -22,6 +22,7 @@
#define SNOR_MFR_INTEL CFI_MFR_INTEL #define SNOR_MFR_INTEL CFI_MFR_INTEL
#define SNOR_MFR_ST CFI_MFR_ST /* ST Micro <--> Micron */ #define SNOR_MFR_ST CFI_MFR_ST /* ST Micro <--> Micron */
#define SNOR_MFR_MICRON CFI_MFR_MICRON /* ST Micro <--> Micron */ #define SNOR_MFR_MICRON CFI_MFR_MICRON /* ST Micro <--> Micron */
#define SNOR_MFR_ISSI CFI_MFR_PMC
#define SNOR_MFR_MACRONIX CFI_MFR_MACRONIX #define SNOR_MFR_MACRONIX CFI_MFR_MACRONIX
#define SNOR_MFR_SPANSION CFI_MFR_AMD #define SNOR_MFR_SPANSION CFI_MFR_AMD
#define SNOR_MFR_SST CFI_MFR_SST #define SNOR_MFR_SST CFI_MFR_SST