While setting quad bit on spansion, macronix code
is writing only particular quad bit this may give
wrong functionality with other register bits,
So this patch fix the issue where it with write
previous read reg status along particular quad bit.
Cc: Vignesh R <vigne...@ti.com>
Cc: Mugunthan V N <mugunthan...@ti.com>
Cc: Simon Glass <s...@chromium.org>
Cc: Bin Meng <bmeng...@gmail.com>
Cc: Michal Simek <michal.si...@xilinx.com>
Cc: Siva Durga Prasad Paladugu <siva...@xilinx.com>
Signed-off-by: Jagan Teki <jt...@openedev.com>
---
Changes for v2:
- newly added
drivers/mtd/spi/spi_flash.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index c922322..1ba6222 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -843,7 +843,7 @@ static int macronix_quad_enable(struct spi_flash *flash)
if (qeb_status & STATUS_QEB_MXIC)
return 0;
- ret = write_sr(flash, STATUS_QEB_MXIC);
+ ret = write_sr(flash, qeb_status | STATUS_QEB_MXIC);
if (ret < 0)
return ret;
@@ -871,7 +871,7 @@ static int spansion_quad_enable(struct spi_flash *flash)
if (qeb_status & STATUS_QEB_WINSPAN)
return 0;
- ret = write_cr(flash, STATUS_QEB_WINSPAN);
+ ret = write_cr(flash, qeb_status | STATUS_QEB_WINSPAN);
if (ret < 0)
return ret;
--
1.9.1
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