This patch adds bank addr access support for macronix flash's so-that the macronix flashes which has > 16Mbyte sizes can be accessible in 3-byte addressing mode.
Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com --- drivers/mtd/spi/spi_flash.c | 1 + drivers/mtd/spi/spi_flash_internal.h | 1 + 2 files changed, 2 insertions(+)
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c index 9814395..2528ebc 100644 --- a/drivers/mtd/spi/spi_flash.c +++ b/drivers/mtd/spi/spi_flash.c @@ -371,6 +371,7 @@ int spi_flash_bank_config(struct spi_flash *flash, u8 idcode0) break; case SPI_FLASH_STMICRO_IDCODE0: case SPI_FLASH_WINBOND_IDCODE0: + case SPI_FLASH_MACRONIX_IDCODE0: flash->bank_read_cmd = CMD_EXTNADDR_RDEAR; flash->bank_write_cmd = CMD_EXTNADDR_WREAR; break; diff --git a/drivers/mtd/spi/spi_flash_internal.h b/drivers/mtd/spi/spi_flash_internal.h index 20eed7c..30b2749 100644 --- a/drivers/mtd/spi/spi_flash_internal.h +++ b/drivers/mtd/spi/spi_flash_internal.h @@ -36,6 +36,7 @@ # define SPI_FLASH_SPANSION_IDCODE0 0x01 # define SPI_FLASH_STMICRO_IDCODE0 0x20 # define SPI_FLASH_WINBOND_IDCODE0 0xef +# define SPI_FLASH_MACRONIX_IDCODE0 0xc2
/* Bank addr access commands */ # define CMD_BANKADDR_BRWR 0x17