From: Fabio Estevam fabio.estevam@freescale.com
SST flashes have a similar SPI NOR protection scheme as STMICRO, so add support for it.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Changes since v4: - None. Newly introduced in this version
drivers/mtd/spi/sf_internal.h | 1 + drivers/mtd/spi/sf_probe.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index db46aa8..214ceaa 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -63,6 +63,7 @@ enum spi_nor_option_flags { /* CFI Manufacture ID's */ #define SPI_FLASH_CFI_MFR_SPANSION 0x01 #define SPI_FLASH_CFI_MFR_STMICRO 0x20 +#define SPI_FLASH_CFI_MFR_SST 0xbf #define SPI_FLASH_CFI_MFR_MACRONIX 0xc2 #define SPI_FLASH_CFI_MFR_WINBOND 0xef
diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index 3626433..8a736c4 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -140,7 +140,8 @@ int static is_stm(struct spi_slave *spi, struct spi_flash *flash) if (ret < 0) return ret;
- if (idcode[0] == SPI_FLASH_CFI_MFR_STMICRO) + if (idcode[0] == SPI_FLASH_CFI_MFR_STMICRO || + idcode[0] == SPI_FLASH_CFI_MFR_SST) return 1; else return 0;