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[MTD] [NAND] at91_nand.c: CMDLINE_PARTS support

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This patch allows you to specify at91_nand partitions on the
kernel command line using the mtdparts variable, if
CONFIG_MTD_CMDLINE_PARTS is set.

Signed-off-by: Frank Mandarino <fmandarino@endrelia.com>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Andrew Victor 2007-05-03 08:16:44 +02:00 committed by David Woodhouse
parent 1a12f46af1
commit 693ef66d89
1 changed files with 10 additions and 0 deletions
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10
drivers/mtd/nand/at91_nand.c
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@ -82,6 +82,10 @@ static void at91_nand_disable(struct at91_nand_host *host)
at91_set_gpio_value(host->board->enable_pin, 1);
}
#ifdef CONFIG_MTD_PARTITIONS
const char *part_probes[] = { "cmdlinepart", NULL };
#endif
/*
* Probe for the NAND device.
*/
@ -151,6 +155,12 @@ static int __init at91_nand_probe(struct platform_device *pdev)
#ifdef CONFIG_MTD_PARTITIONS
if (host->board->partition_info)
partitions = host->board->partition_info(mtd->size, &num_partitions);
#ifdef CONFIG_MTD_CMDLINE_PARTS
else {
mtd->name = "at91_nand";
num_partitions = parse_mtd_partitions(mtd, part_probes, &partitions, 0);
}
#endif
if ((!partitions) || (num_partitions == 0)) {
printk(KERN_ERR "at91_nand: No parititions defined, or unsupported device.\n");