[MTD] [NAND] Add support for 4KiB pages.

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=81ec5364a58c0545b694dee02fe65b9ae48f37b6
Commit:     81ec5364a58c0545b694dee02fe65b9ae48f37b6
Parent:     45b09076149f1360e15919ca7e004e8d3810a0f7
Author:     Thomas Gleixner <tglx at linutronix.de>
AuthorDate: Wed Dec 12 17:27:03 2007 +0100
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Mon Apr 6 07:01:56 2009 -0700

    [MTD] [NAND] Add support for 4KiB pages.
    
    Signed-off-by: Thomas Gleixner <tglx at linutronix.de>
    Signed-off-by: Sebastian Siewior <bigeasy at linutronix.de>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/nand/nand_base.c |   18 ++++++++++++++++++
 include/linux/mtd/nand.h     |    4 ++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 0793ca3..facee26 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -82,6 +82,20 @@ static struct nand_ecclayout nand_oob_64 = {
 		 .length = 38}}
 };
 
+static struct nand_ecclayout nand_oob_128 = {
+	.eccbytes = 48,
+	.eccpos = {
+		   80, 81, 82, 83, 84, 85, 86, 87,
+		   88, 89, 90, 91, 92, 93, 94, 95,
+		   96, 97, 98, 99, 100, 101, 102, 103,
+		   104, 105, 106, 107, 108, 109, 110, 111,
+		   112, 113, 114, 115, 116, 117, 118, 119,
+		   120, 121, 122, 123, 124, 125, 126, 127},
+	.oobfree = {
+		{.offset = 2,
+		 .length = 78}}
+};
+
 static int nand_get_device(struct nand_chip *chip, struct mtd_info *mtd,
 			   int new_state);
 
@@ -2638,6 +2652,9 @@ int nand_scan_tail(struct mtd_info *mtd)
 		case 64:
 			chip->ecc.layout = &nand_oob_64;
 			break;
+		case 128:
+			chip->ecc.layout = &nand_oob_128;
+			break;
 		default:
 			printk(KERN_WARNING "No oob scheme defined for "
 			       "oobsize %d\n", mtd->oobsize);
@@ -2767,6 +2784,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 			break;
 		case 4:
 		case 8:
+		case 16:
 			mtd->subpage_sft = 2;
 			break;
 		}
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index db5b63d..7efb9be 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -43,8 +43,8 @@ extern void nand_wait_ready(struct mtd_info *mtd);
  * is supported now. If you add a chip with bigger oobsize/page
  * adjust this accordingly.
  */
-#define NAND_MAX_OOBSIZE	64
-#define NAND_MAX_PAGESIZE	2048
+#define NAND_MAX_OOBSIZE	128
+#define NAND_MAX_PAGESIZE	4096
 
 /*
  * Constants for hardware specific CLE/ALE/NCE function