sf: Add QUAD_IO_FAST read support
This patch adds support QUAD_IO_FAST read command.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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 @@
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 @@
/* 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]);