[MTD] [NAND] at91_nand rdy_pin fix
authorIvan Kuten <ivan.kuten@promwad.com>
Thu, 24 May 2007 11:35:58 +0000 (14:35 +0300)
committerDavid Woodhouse <dwmw2@infradead.org>
Thu, 2 Aug 2007 20:46:48 +0000 (21:46 +0100)
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>
drivers/mtd/nand/at91_nand.c

index 512e999..b2a5672 100644 (file)
@@ -128,7 +128,10 @@ static int __init at91_nand_probe(struct platform_device *pdev)
        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 */