From: Andrew Victor <andrew@sanpeople.com>
Date: Fri, 8 Dec 2006 11:49:42 +0000 (+0200)
Subject: [MTD] NAND: Support for 16-bit bus-width on AT91.
X-Git-Tag: v2.6.20-rc6~47^2~15
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=dd11b8cdf0c455f4cfbc5daa70aabce9dcc6c07b;p=linux-2.6-omap-h63xx.git

[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 a58ed376308..14b80cc90a7 100644
--- a/drivers/mtd/nand/at91_nand.c
+++ b/drivers/mtd/nand/at91_nand.c
@@ -128,6 +128,9 @@ static int __init at91_nand_probe(struct platform_device *pdev)
 	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);