From: "Lokanathan, Raaj" raaj.lokanathan@intel.com

Add support for reading data/images from this ISSI QSPI flash.

Signed-off-by: Lokanathan, Raaj raaj.lokanathan@intel.com --- drivers/mtd/spi/spi-nor-tiny.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi/spi-nor-tiny.c b/drivers/mtd/spi/spi-nor-tiny.c index 68152ce3b4..6a5da38cb1 100644 --- a/drivers/mtd/spi/spi-nor-tiny.c +++ b/drivers/mtd/spi/spi-nor-tiny.c @@ -219,6 +219,7 @@ static inline int set_4byte(struct spi_nor *nor, const struct flash_info *info, case SNOR_MFR_MICRON: /* Some Micron need WREN command; all will accept it */ need_wren = true; + case SNOR_MFR_ISSI: case SNOR_MFR_MACRONIX: case SNOR_MFR_WINBOND: if (need_wren) @@ -432,7 +433,7 @@ static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len, return -ENOTSUPP; }

-#ifdef CONFIG_SPI_FLASH_MACRONIX +#if defined(CONFIG_SPI_FLASH_MACRONIX) || defined(CONFIG_SPI_FLASH_ISSI) /** * macronix_quad_enable() - set QE bit in Status Register. * @nor: pointer to a 'struct spi_nor' @@ -661,8 +662,9 @@ static int spi_nor_setup(struct spi_nor *nor, const struct flash_info *info, /* Enable Quad I/O if needed. */ if (spi_nor_get_protocol_width(nor->read_proto) == 4) { switch (JEDEC_MFR(info)) { -#ifdef CONFIG_SPI_FLASH_MACRONIX +#if defined(CONFIG_SPI_FLASH_MACRONIX) || defined(CONFIG_SPI_FLASH_ISSI) case SNOR_MFR_MACRONIX: + case SNOR_MFR_ISSI: err = macronix_quad_enable(nor); break; #endif