* Wolfgang Grandegger | 2009-03-25 11:48:37 [+0100]:
>Signed-off-by: Ilya Yanok <ya...@emcraft.com>
>Acked-by: Wolfgang Grandegger <w...@grandegger.com>
You seem to forgot a few bits (subpage_sft & max page size). I had this
patch in my tree like for ever and forgot post it here. I did however
merge the mtd-utils bits allready :)
From: Thomas Gleixner <t...@linutronix.de>
Date: Wed, 12 Dec 2007 17:27:03 +0100
Subject: [PATCH 7/8] [PATCH] [MTD] Add support for 4k pages.
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: Sebastian Siewior <bige...@linutronix.de>
---
drivers/mtd/nand/nand_base.c | 18 ++++++++++++++++++
include/linux/mtd/nand.h | 4 ++--
2 files changed, 20 insertions(+), 2 deletions(-)
Index: linux-2.6/drivers/mtd/nand/nand_base.c
===================================================================
--- linux-2.6.orig/drivers/mtd/nand/nand_base.c 2009-03-30 12:47:55.673721571
+0200
+++ linux-2.6/drivers/mtd/nand/nand_base.c 2009-03-30 12:48:07.896719130
+0200
@@ -82,6 +82,20 @@
.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);
@@ -2555,6 +2569,9 @@
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);
@@ -2676,6 +2693,7 @@
break;
case 4:
case 8:
+ case 16:
mtd->subpage_sft = 2;
break;
}
Index: linux-2.6/include/linux/mtd/nand.h
===================================================================
--- linux-2.6.orig/include/linux/mtd/nand.h 2009-03-30 12:47:55.673721571
+0200
+++ linux-2.6/include/linux/mtd/nand.h 2009-03-30 12:48:07.910718894 +0200
@@ -43,8 +43,8 @@
* 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
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