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

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>
Jagan Teki 4 gadi atpakaļ
vecāks
revīzija
5bf3f3dd11
2 mainītis faili ar 2 papildinājumiem un 0 dzēšanām
  1. 1 0
      drivers/mtd/spi/spi-nor-core.c
  2. 1 0
      include/linux/mtd/spi-nor.h

+ 1 - 0
drivers/mtd/spi/spi-nor-core.c

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

+ 1 - 0
include/linux/mtd/spi-nor.h

@@ -22,6 +22,7 @@
 #define SNOR_MFR_INTEL		CFI_MFR_INTEL
 #define SNOR_MFR_ST		CFI_MFR_ST /* 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_SPANSION	CFI_MFR_AMD
 #define SNOR_MFR_SST		CFI_MFR_SST