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

[Andrew Victor]

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 at endrelia.com>
Signed-off-by: Andrew Victor <andrew at sanpeople.com>


diff -urN -x CVS linux-2.6.21/drivers/mtd/nand/at91_nand.c linux-2.6/drivers/mtd/nand/at91_nand.c
--- linux-2.6.21/drivers/mtd/nand/at91_nand.c	Thu Apr 26 05:08:32 2007
+++ linux-2.6/drivers/mtd/nand/at91_nand.c	Wed Jan 31 15:18:47 2007
@@ -82,6 +82,10 @@
 		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 @@
 #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");