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[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>
Andrew Victor 18 years ago
parent
4a0c50c07a
commit
dd11b8cdf0
1 changed files with 3 additions and 0 deletions
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  1. 3 0
      drivers/mtd/nand/at91_nand.c

+ 3 - 0
drivers/mtd/nand/at91_nand.c
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@@ -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->ecc.mode = NAND_ECC_SOFT;	/* enable ECC */
 
 	nand_chip->chip_delay = 20;		/* 20us command delay time */
 
 	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);
 
 	platform_set_drvdata(pdev, host);
 
 	at91_nand_enable(host);
 
 	at91_nand_enable(host);