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authorJagannadha Sutradharudu Teki2014-01-12 21:40:11 +0530
committerJagannadha Sutradharudu Teki2014-01-12 21:40:11 +0530
commitf77f469117ab3184ac45683a50dc446265be28cc (patch)
tree3f5f0783521f5401251cc4a94503573dc2e91baf /drivers/mtd/spi/sf.c
parentab92224f4550f9677be32dd903e99acf1475dbf7 (diff)
sf: Add dual memories support - DUAL_STACKED
This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Diffstat (limited to 'drivers/mtd/spi/sf.c')
-rw-r--r--drivers/mtd/spi/sf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/spi/sf.c b/drivers/mtd/spi/sf.c
index d5e175ca000..c780a81c599 100644
--- a/drivers/mtd/spi/sf.c
+++ b/drivers/mtd/spi/sf.c
@@ -18,6 +18,9 @@ static int spi_flash_read_write(struct spi_slave *spi,
unsigned long flags = SPI_XFER_BEGIN;
int ret;
+ if (spi->flags & SPI_XFER_U_PAGE)
+ flags |= SPI_XFER_U_PAGE;
+
if (data_len == 0)
flags |= SPI_XFER_END;