[MTD] NAND: Support for 16-bit bus-width on AT91.
Add support for 16-bit NAND bus-width for the AT91 NAND driver.
The 16-bit NAND is found on the Atmel AT91SAM9260-EK and AT91SAM9261-EK
boards.
Orignal Patch from Patrice Vilchez
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/mtd/nand/at91_nand.c b/drivers/mtd/nand/at91_nand.c
index a58ed37..14b80cc 100644
--- a/drivers/mtd/nand/at91_nand.c
+++ b/drivers/mtd/nand/at91_nand.c
@@ -128,6 +128,9 @@
nand_chip->ecc.mode = NAND_ECC_SOFT; /* enable ECC */
nand_chip->chip_delay = 20; /* 20us command delay time */
+ if (host->board->bus_width_16) /* 16-bit bus width */
+ nand_chip->options |= NAND_BUSWIDTH_16;
+
platform_set_drvdata(pdev, host);
at91_nand_enable(host);