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at91_nand CMDLINE_PARTS support

PATCH New Frank Mandarino 1 participant 1 message Nov 30, 2006

Subsystems (3)
Memory technology devices (MTD) Arm/Microchip (AT91) SoC support NAND flash
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Frank Mandarino

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PATCH 1/1 at91_nand CMDLINE_PARTS support

Hi,

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

Regards,
../fam
--
Frank Mandarino fmandarino(a)endrelia.com
Endrelia Technologies Inc.
Toronto, Ontario, Canada

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

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 <[email protected]>
drivers/mtd/nand/at91_nand.c +12 -0
index a58ed37..0d18fed 100644
@@ -82,6 +82,12 @@ static void at91_nand_disable(struct at9
 		at91_set_gpio_value(host->board->enable_pin, 1);
 }
 
+#ifdef CONFIG_MTD_PARTITIONS
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+const char *part_probes[] = { "cmdlinepart", NULL };
+#endif
+#endif
+
 /*
  * Probe for the NAND device.
  */

@@ -148,6 +154,12 @@ #endif
 #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");