Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3c3e69cd4c667e6ce7939d83b274d48c57779479
Commit: 3c3e69cd4c667e6ce7939d83b274d48c57779479
Parent: 5ce4b1fe6c6a126f9274f19d8b2d2c8d29cd49b6
Author: Ben Dooks <[EMAIL PROTECTED]>
AuthorDate: Thu Jul 12 10:57:37 2007 +0100
Committer: Russell King <[EMAIL PROTECTED]>
CommitDate: Thu Jul 12 11:01:13 2007 +0100
[ARM] 4470/2: OSIRIS: large page NAND support
Add support for the partition layout on the revision B
modules which have large page NAND fitted.
The new partition table accounts for the use of the
128KiB block parts, which means the second partition
on the device is moved to the new boundary.
Signed-off-by: Ben Dooks <[EMAIL PROTECTED]>
Signed-off-by: Russell King <[EMAIL PROTECTED]>
---
arch/arm/mach-s3c2440/mach-osiris.c | 38 ++++++++++++++++++++++++++++++++--
1 files changed, 35 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-s3c2440/mach-osiris.c
b/arch/arm/mach-s3c2440/mach-osiris.c
index 1581160..89f4c9c 100644
--- a/arch/arm/mach-s3c2440/mach-osiris.c
+++ b/arch/arm/mach-s3c2440/mach-osiris.c
@@ -166,6 +166,29 @@ static struct mtd_partition osiris_default_nand_part[] = {
}
};
+static struct mtd_partition osiris_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 Osiris has 3 selectable slots for nand-flash, the two
* on-board chip areas, as well as the external slot.
*
@@ -322,14 +345,23 @@ static void __init osiris_map_io(void)
s3c24xx_init_clocks(0);
s3c24xx_init_uarts(osiris_uartcfgs, ARRAY_SIZE(osiris_uartcfgs));
+ /* check for the newer revision boards with large page nand */
+
+ if ((__raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK) >= 4) {
+ printk(KERN_INFO "OSIRIS-B detected (revision %d)\n",
+ __raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK);
+ osiris_nand_sets[0].partitions = osiris_default_nand_part_large;
+ osiris_nand_sets[0].nr_partitions =
ARRAY_SIZE(osiris_default_nand_part_large);
+ } else {
+ /* write-protect line to the NAND */
+ s3c2410_gpio_setpin(S3C2410_GPA0, 1);
+ }
+
/* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */
local_irq_save(flags);
__raw_writel(__raw_readl(S3C2410_BWSCON) | S3C2410_BWSCON_ST1 |
S3C2410_BWSCON_ST2 | S3C2410_BWSCON_ST3 | S3C2410_BWSCON_ST4 |
S3C2410_BWSCON_ST5, S3C2410_BWSCON);
local_irq_restore(flags);
-
- /* write-protect line to the NAND */
- s3c2410_gpio_setpin(S3C2410_GPA0, 1);
}
static void __init osiris_init(void)
-
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