Added support to set the quad enable bit in status register for ISSI parts. Tis would be same as for Macronix parts.

Signed-off-by: Siva Durga Prasad Paladugu sivadur@xilinx.com --- - This patch is based on u-boot-spi/master --- drivers/mtd/spi/sf_internal.h | 1 + drivers/mtd/spi/sf_probe.c | 5 +++-- 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index 9c95d56..a995d9b 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -60,6 +60,7 @@ enum { #define SPI_FLASH_CFI_MFR_STMICRO 0x20 #define SPI_FLASH_CFI_MFR_MACRONIX 0xc2 #define SPI_FLASH_CFI_MFR_WINBOND 0xef +#define SPI_FLASH_CFI_MFR_ISSI 0x9d

/* Erase commands */ #define CMD_ERASE_4K 0x20 diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index 954376d..b4f8a33 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -32,7 +32,7 @@ static u8 spi_read_cmds_array[] = { CMD_READ_QUAD_IO_FAST, };

-#ifdef CONFIG_SPI_FLASH_MACRONIX +#if defined(CONFIG_SPI_FLASH_MACRONIX) || defined(CONFIG_SPI_FLASH_ISSI) static int spi_flash_set_qeb_mxic(struct spi_flash *flash) { u8 qeb_status; @@ -79,8 +79,9 @@ static int spi_flash_set_qeb_winspan(struct spi_flash *flash) static int spi_flash_set_qeb(struct spi_flash *flash, u8 idcode0) { switch (idcode0) { -#ifdef CONFIG_SPI_FLASH_MACRONIX +#if defined(CONFIG_SPI_FLASH_MACRONIX) || defined(CONFIG_SPI_FLASH_ISSI) case SPI_FLASH_CFI_MFR_MACRONIX: + case SPI_FLASH_CFI_MFR_ISSI: return spi_flash_set_qeb_mxic(flash); #endif #if defined(CONFIG_SPI_FLASH_SPANSION) || defined(CONFIG_SPI_FLASH_WINBOND)