From c4ba0d82d329791c3f0456d88e93032b11e48535 Mon Sep 17 00:00:00 2001 From: Jagannadha Sutradharudu Teki Date: Tue, 24 Dec 2013 15:24:31 +0530 Subject: sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki --- drivers/mtd/spi/sf_internal.h | 1 + drivers/mtd/spi/sf_probe.c | 2 ++ 2 files changed, 3 insertions(+) (limited to 'drivers') 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]); -- cgit v1.1