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authorBen Dooks <ben-linux@fluff.org>2007-07-11 11:10:42 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-07-12 10:56:25 +0100
commitad3613f4798e229c8885b924c88e17ab85fef96a (patch)
tree27c87cf58d6a8e705336e6997b1b06787a169d5c /arch/arm
parent8a9ccb7f182d15d6d6d0debb819790f25c87a30b (diff)
[ARM] 4469/1: ANUBIS: large page NAND support
Add support for the partition layour used on the revision B modules which ship with large page NAND flash as default. The differnce between the old and new layouts is that the large page devices use 128KiB blocks, so the initial loader partition now ends at 128KiB boundary pushing the begining of partition 1 up. The rest of the partitions are in the same place as the small page NAND devices. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-s3c2440/mach-anubis.c36
1 files changed, 34 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c2440/mach-anubis.c b/arch/arm/mach-s3c2440/mach-anubis.c
index 53675aa516f..29c163d300d 100644
--- a/arch/arm/mach-s3c2440/mach-anubis.c
+++ b/arch/arm/mach-s3c2440/mach-anubis.c
@@ -158,6 +158,29 @@ static struct mtd_partition anubis_default_nand_part[] = {
}
};
+static struct mtd_partition anubis_default_nand_part_large[] = {
+ [0] = {
+ .name = "Boot Agent",
+ .size = SZ_128K,
+ .offset = 0,
+ },
+ [1] = {
+ .name = "/boot",
+ .size = SZ_4M - SZ_128K,
+ .offset = SZ_128K,
+ },
+ [2] = {
+ .name = "user1",
+ .offset = SZ_4M,
+ .size = SZ_32M - SZ_4M,
+ },
+ [3] = {
+ .name = "user2",
+ .offset = SZ_32M,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
/* the Anubis has 3 selectable slots for nand-flash, the two
* on-board chip areas, as well as the external slot.
*
@@ -409,8 +432,17 @@ static void __init anubis_map_io(void)
s3c24xx_init_clocks(0);
s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
- /* ensure that the GPIO is setup */
- s3c2410_gpio_setpin(S3C2410_GPA0, 1);
+ /* check for the newer revision boards with large page nand */
+
+ if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
+ printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
+ __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
+ anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
+ anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
+ } else {
+ /* ensure that the GPIO is setup */
+ s3c2410_gpio_setpin(S3C2410_GPA0, 1);
+ }
}
static void __init anubis_init(void)