[MTD] [NAND] at91_nand rdy_pin fix
The patch below fixes nand driver for AT91 boards which do not have NAND
R/B signal connected to gpio (rdy_pin is not connected).
Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Acked-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 512e999..b2a5672 100644
--- a/drivers/mtd/nand/at91_nand.c
+++ b/drivers/mtd/nand/at91_nand.c
@@ -128,7 +128,10 @@
nand_chip->IO_ADDR_R = host->io_base;
nand_chip->IO_ADDR_W = host->io_base;
nand_chip->cmd_ctrl = at91_nand_cmd_ctrl;
- nand_chip->dev_ready = at91_nand_device_ready;
+
+ if (host->board->rdy_pin)
+ nand_chip->dev_ready = at91_nand_device_ready;
+
nand_chip->ecc.mode = NAND_ECC_SOFT; /* enable ECC */
nand_chip->chip_delay = 20; /* 20us command delay time */