From 0005aad094538e1c290b1cdb5b940e4a16f405b0 Mon Sep 17 00:00:00 2001 From: Yogesh Narayan Gaur Date: Fri, 12 Oct 2018 02:23:08 +0000 Subject: [PATCH] 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 Reviewed-by: Tudor Ambarus Signed-off-by: Boris Brezillon --- drivers/mtd/spi-nor/spi-nor.c | 9 ++++++--- include/linux/mtd/cfi.h | 1 + include/linux/mtd/spi-nor.h | 3 ++- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 5ca4aaf..33cc51c 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -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; @@ -3774,8 +3776,9 @@ 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 || - info->flags & SPI_NOR_HAS_LOCK) { + 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; nor->flash_is_locked = stm_is_locked; diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index 9b57a9b..cbf7716 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -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 diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index 7f0c730..8b1acf6 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -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 -- 2.7.4