From 6479fac2cfb6e430af3eeb8b09cf880c1f2d3a2a Mon Sep 17 00:00:00 2001
From: Roman Tereshonkov <roman.tereshonkov@nokia.com>
Date: Mon, 11 Apr 2011 12:52:01 +0300
Subject: [PATCH] --- yaml --- r: 252476 b: refs/heads/master c:
 99b17c08bca2810f5910b3027f1b9d82edf7a576 h: refs/heads/master v: v3

---
 [refs]                                   |  2 +-
 trunk/drivers/mtd/onenand/onenand_base.c | 46 ++++++++++++++++++++----
 2 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/[refs] b/[refs]
index 2c6a0106d7d5..de3a65b64a5a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9b5705a2bd81e012162ef02eaa96879cd3f370df
+refs/heads/master: 99b17c08bca2810f5910b3027f1b9d82edf7a576
diff --git a/trunk/drivers/mtd/onenand/onenand_base.c b/trunk/drivers/mtd/onenand/onenand_base.c
index 56a8b2005bda..d27f93b354e8 100644
--- a/trunk/drivers/mtd/onenand/onenand_base.c
+++ b/trunk/drivers/mtd/onenand/onenand_base.c
@@ -65,11 +65,11 @@ MODULE_PARM_DESC(otp,	"Corresponding behaviour of OneNAND in OTP"
 			"	   : 2 -> 1st Block lock"
 			"	   : 3 -> BOTH OTP Block and 1st Block lock");
 
-/**
- *  onenand_oob_128 - oob info for Flex-Onenand with 4KB page
- *  For now, we expose only 64 out of 80 ecc bytes
+/*
+ * flexonenand_oob_128 - oob info for Flex-Onenand with 4KB page
+ * For now, we expose only 64 out of 80 ecc bytes
  */
-static struct nand_ecclayout onenand_oob_128 = {
+static struct nand_ecclayout flexonenand_oob_128 = {
 	.eccbytes	= 64,
 	.eccpos		= {
 		6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
@@ -86,6 +86,35 @@ static struct nand_ecclayout onenand_oob_128 = {
 	}
 };
 
+/*
+ * onenand_oob_128 - oob info for OneNAND with 4KB page
+ *
+ * Based on specification:
+ * 4Gb M-die OneNAND Flash (KFM4G16Q4M, KFN8G16Q4M). Rev. 1.3, Apr. 2010
+ *
+ * For eccpos we expose only 64 bytes out of 72 (see struct nand_ecclayout)
+ *
+ * oobfree uses the spare area fields marked as
+ * "Managed by internal ECC logic for Logical Sector Number area"
+ */
+static struct nand_ecclayout onenand_oob_128 = {
+	.eccbytes	= 64,
+	.eccpos		= {
+		7, 8, 9, 10, 11, 12, 13, 14, 15,
+		23, 24, 25, 26, 27, 28, 29, 30, 31,
+		39, 40, 41, 42, 43, 44, 45, 46, 47,
+		55, 56, 57, 58, 59, 60, 61, 62, 63,
+		71, 72, 73, 74, 75, 76, 77, 78, 79,
+		87, 88, 89, 90, 91, 92, 93, 94, 95,
+		103, 104, 105, 106, 107, 108, 109, 110, 111,
+		119
+	},
+	.oobfree	= {
+		{2, 3}, {18, 3}, {34, 3}, {50, 3},
+		{66, 3}, {82, 3}, {98, 3}, {114, 3}
+	}
+};
+
 /**
  * onenand_oob_64 - oob info for large (2KB) page
  */
@@ -4018,8 +4047,13 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
 	 */
 	switch (mtd->oobsize) {
 	case 128:
-		this->ecclayout = &onenand_oob_128;
-		mtd->subpage_sft = 0;
+		if (FLEXONENAND(this)) {
+			this->ecclayout = &flexonenand_oob_128;
+			mtd->subpage_sft = 0;
+		} else {
+			this->ecclayout = &onenand_oob_128;
+			mtd->subpage_sft = 2;
+		}
 		break;
 	case 64:
 		this->ecclayout = &onenand_oob_64;