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| author | Jagan Teki <jteki@openedev.com> | 2015-12-16 13:48:08 +0530 |
|---|---|---|
| committer | Jagan Teki <jteki@openedev.com> | 2016-01-13 18:47:26 +0530 |
| commit | d9a0ab6c0dc318750ce5d389bf9268e31fd8af60 (patch) | |
| tree | 0dce573a96122ad6d3b7afd9ced309a91d1a1c49 /drivers/mtd/spi | |
| parent | bfcdc3956d2cf4fb692b8ccbdafd56d0b4b11b2d (diff) | |
| download | blackbird-obmc-uboot-d9a0ab6c0dc318750ce5d389bf9268e31fd8af60.tar.gz blackbird-obmc-uboot-d9a0ab6c0dc318750ce5d389bf9268e31fd8af60.zip | |
sf: Write quad bit along with read status
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 <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
Diffstat (limited to 'drivers/mtd/spi')
| -rw-r--r-- | drivers/mtd/spi/spi_flash.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c index 682d1a0df6..e72abb97ac 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; |
