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mtd: spi-nor: add macros related to MICRON flash 

Some MICRON related macros in spi-nor domain were ST.
Rename entries related to STMicroelectronics under macro SNOR_MFR_ST.

Added entry of MFR Id for Micron flashes, 0x002C.

Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Yogesh Narayan Gaur 2018-10-12 02:23:08 +00:00 committed by Boris Brezillon
parent f66734ae2d
commit 0005aad094
3 changed files with 9 additions and 4 deletions
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7
drivers/mtd/spi-nor/spi-nor.c
View File

@ -284,6 +284,7 @@ static inline int set_4byte(struct spi_nor *nor, const struct flash_info *info,
u8 cmd;
switch (JEDEC_MFR(info)) {
case SNOR_MFR_ST:
case SNOR_MFR_MICRON:
/* Some Micron need WREN command; all will accept it */
need_wren = true;
@ -1391,7 +1392,7 @@ static const struct flash_info spi_nor_ids[] = {
{ "mx66l1g45g", INFO(0xc2201b, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ "mx66l1g55g", INFO(0xc2261b, 0, 64 * 1024, 2048, SPI_NOR_QUAD_READ) },
/* Micron */
/* Micron <--> ST Micro */
{ "n25q016a", INFO(0x20bb15, 0, 64 * 1024, 32, SECT_4K | SPI_NOR_QUAD_READ) },
{ "n25q032", INFO(0x20ba16, 0, 64 * 1024, 64, SPI_NOR_QUAD_READ) },
{ "n25q032a", INFO(0x20bb16, 0, 64 * 1024, 64, SPI_NOR_QUAD_READ) },
@ -3324,6 +3325,7 @@ static int spi_nor_init_params(struct spi_nor *nor,
params->quad_enable = macronix_quad_enable;
break;
case SNOR_MFR_ST:
case SNOR_MFR_MICRON:
break;
@ -3774,7 +3776,8 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
mtd->_resume = spi_nor_resume;
/* NOR protection support for STmicro/Micron chips and similar */
if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||
if (JEDEC_MFR(info) == SNOR_MFR_ST ||
JEDEC_MFR(info) == SNOR_MFR_MICRON ||
info->flags & SPI_NOR_HAS_LOCK) {
nor->flash_lock = stm_lock;
nor->flash_unlock = stm_unlock;

1
include/linux/mtd/cfi.h
View File

@ -377,6 +377,7 @@ struct cfi_fixup {
#define CFI_MFR_SHARP 0x00B0
#define CFI_MFR_SST 0x00BF
#define CFI_MFR_ST 0x0020 /* STMicroelectronics */
#define CFI_MFR_MICRON 0x002C /* Micron */
#define CFI_MFR_TOSHIBA 0x0098
#define CFI_MFR_WINBOND 0x00DA

3
include/linux/mtd/spi-nor.h
View File

@ -23,7 +23,8 @@
#define SNOR_MFR_ATMEL CFI_MFR_ATMEL
#define SNOR_MFR_GIGADEVICE 0xc8
#define SNOR_MFR_INTEL CFI_MFR_INTEL
#define SNOR_MFR_MICRON CFI_MFR_ST /* ST Micro <--> Micron */
#define SNOR_MFR_ST CFI_MFR_ST /* ST Micro */
#define SNOR_MFR_MICRON CFI_MFR_MICRON /* Micron */
#define SNOR_MFR_MACRONIX CFI_MFR_MACRONIX
#define SNOR_MFR_SPANSION CFI_MFR_AMD
#define SNOR_MFR_SST CFI_MFR_SST