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sf: probe: Fix quad bit set path 

Currently, flash quad bit is set in "spi_flash_validate_params" and later
at the end in the same api, we write 0 to status register for few flashes,
thereby overriding the quad bit set. This fix moves the quad bit setting
outside this api in "spi_flash_probe_slave"

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
This commit is contained in:
Poddar, Sourav 2014-04-23 18:57:03 +05:30 committed by Jagannadha Sutradharudu Teki
parent c1c0dd2644
commit 1f436a6ddf
1 changed files with 10 additions and 10 deletions
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20
drivers/mtd/spi/sf_probe.c
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@ -197,16 +197,6 @@ static struct spi_flash *spi_flash_validate_params(struct spi_slave *spi,
/* Go for default supported write cmd */
flash->write_cmd = CMD_PAGE_PROGRAM;
/* 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]);
return NULL;
}
}
/* Read dummy_byte: dummy byte is determined based on the
* dummy cycles of a particular command.
* Fast commands - dummy_byte = dummy_cycles/8
@ -327,6 +317,16 @@ static struct spi_flash *spi_flash_probe_slave(struct spi_slave *spi)
if (!flash)
goto err_read_id;
/* 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]);
return NULL;
}
}
#ifdef CONFIG_OF_CONTROL
if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
debug("SF: FDT decode error\n");