This patch adds support QUAD_IO_FAST read command.

Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com --- drivers/mtd/spi/sf_internal.h | 1 + drivers/mtd/spi/sf_probe.c | 2 ++ include/spi.h | 4 +++- include/spi_flash.h | 3 ++- 4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index dca34f7..7be0292 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -45,6 +45,7 @@ #define CMD_READ_DUAL_OUTPUT_FAST 0x3b #define CMD_READ_DUAL_IO_FAST 0xbb #define CMD_READ_QUAD_OUTPUT_FAST 0x6b +#define CMD_READ_QUAD_IO_FAST 0xeb #define CMD_READ_ID 0x9f

/* Bank addr access commands */ diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index d95c8b9..a049e72 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -25,6 +25,7 @@ static u8 spi_read_cmds_array[] = { CMD_READ_DUAL_OUTPUT_FAST, CMD_READ_DUAL_IO_FAST, CMD_READ_QUAD_OUTPUT_FAST, + CMD_READ_QUAD_IO_FAST, };

static int spi_flash_set_qeb(struct spi_flash *flash, u8 idcode0) @@ -131,6 +132,7 @@ static struct spi_flash *spi_flash_validate_params(struct spi_slave *spi,

/* Set the quad enable bit - only for quad commands */ if ((flash->read_cmd == CMD_READ_QUAD_OUTPUT_FAST) || + (flash->read_cmd == CMD_READ_QUAD_IO_FAST) || (flash->write_cmd == CMD_QUAD_PAGE_PROGRAM)) { if (spi_flash_set_qeb(flash, idcode[0])) { debug("SF: Fail to set QEB for %02x\n", idcode[0]); diff --git a/include/spi.h b/include/spi.h index 5dd490a..c8a9d87 100644 --- a/include/spi.h +++ b/include/spi.h @@ -39,8 +39,10 @@ #define SPI_OPM_RX_DOUT 1 << 1 #define SPI_OPM_RX_DIO 1 << 2 #define SPI_OPM_RX_QOF 1 << 3 +#define SPI_OPM_RX_QIOF 1 << 4 #define SPI_OPM_RX_EXTN SPI_OPM_RX_AS | SPI_OPM_RX_DOUT | \ - SPI_OPM_RX_DIO | SPI_OPM_RX_QOF + SPI_OPM_RX_DIO | SPI_OPM_RX_QOF | \ + SPI_OPM_RX_QIOF

/* Header byte that marks the start of the message */ #define SPI_PREAMBLE_END_BYTE 0xec diff --git a/include/spi_flash.h b/include/spi_flash.h index 8e0bb46..99724a0 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -28,9 +28,10 @@ enum spi_read_cmds { DUAL_OUTPUT_FAST = 1 << 1, DUAL_IO_FAST = 1 << 2, QUAD_OUTPUT_FAST = 1 << 3, + QUAD_IO_FAST = 1 << 4, }; #define RD_EXTN ARRAY_SLOW | DUAL_OUTPUT_FAST | DUAL_IO_FAST -#define RD_FULL RD_EXTN | QUAD_OUTPUT_FAST +#define RD_FULL RD_EXTN | QUAD_OUTPUT_FAST | QUAD_IO_FAST

/** * struct spi_flash_params - SPI/QSPI flash device params structure