Update MTD to that of Linux 2.6.22.1

A lot changed in the Linux MTD code, since it was last ported from Linux to U-Boot. This patch takes U-Boot NAND support to the level of Linux 2.6.22.1 and will enable support for very large NAND devices (4KB pages) and ease the compatibility between U-Boot and Linux filesystems. This patch is tested on two custom boards with PPC and ARM processors running YAFFS in U-Boot and Linux using gcc-4.1.2 cross compilers. MAKEALL ppc/arm has some issues: * DOC/OneNand/nand_spl is not building (I have not tried porting these parts, and since I do not have any HW and I am not familiar with this code/HW I think its best left to someone else.) Except for the issues mentioned above, I have ported all drivers necessary to run MAKEALL ppc/arm without errors and warnings. Many drivers were trivial to port, but some were not so trivial. The following drivers must be examined carefully and maybe rewritten to some degree: cpu/ppc4xx/ndfc.c cpu/arm926ejs/davinci/nand.c board/delta/nand.c board/zylonite/nand.c Signed-off-by: William Juul <william.juul@tandberg.com> Signed-off-by: Stig Olsen <stig.olsen@tandberg.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
author: William Juul <william.juul@datarespons.no> 2007-10-31 13:53:06 +0100
committer: Scott Wood <scottwood@freescale.com> 2008-08-12 11:31:15 -0500
commit: cfa460adfdefcc30d104e1a9ee44994ee349bb7b (patch)
tree: 59400f96629aec9c968b0e3251628302824f5d35 /drivers
parent: cd82919e6c8a73b363a26f34b734923844e52d1c (diff)
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6 files changed, 2753 insertions, 2299 deletions
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index fdd85c1..a03f982 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -16,7 +16,7 @@
  *
  * Interface to generic NAND code for M-Systems DiskOnChip devices
  *
- * $Id: diskonchip.c,v 1.45 2005/01/05 18:05:14 dwmw2 Exp $
+ * $Id: diskonchip.c,v 1.55 2005/11/07 11:14:30 gleixner Exp $
  */
 
 #include <common.h>
@@ -39,13 +39,13 @@
 #include <linux/mtd/inftl.h>
 
 /* Where to look for the devices? */
-#ifndef CONFIG_MTD_DISKONCHIP_PROBE_ADDRESS
-#define CONFIG_MTD_DISKONCHIP_PROBE_ADDRESS 0
+#ifndef CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS
+#define CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS 0
 #endif
 
 static unsigned long __initdata doc_locations[] = {
 #if defined (__alpha__) || defined(__i386__) || defined(__x86_64__)
-#ifdef CONFIG_MTD_DISKONCHIP_PROBE_HIGH
+#ifdef CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH
 	0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000,
 	0xfffd0000, 0xfffd2000, 0xfffd4000, 0xfffd6000,
 	0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000,
@@ -65,7 +65,7 @@ static unsigned long __initdata doc_locations[] = {
 	0xff000000,
 #elif defined(CONFIG_MOMENCO_OCELOT_G) || defined (CONFIG_MOMENCO_OCELOT_C)
 	0xff000000,
-##else
+#else
 #warning Unknown architecture for DiskOnChip. No default probe locations defined
 #endif
 	0xffffffff };
@@ -77,7 +77,7 @@ struct doc_priv {
 	unsigned long physadr;
 	u_char ChipID;
 	u_char CDSNControl;
-	int chips_per_floor; /* The number of chips detected on each floor */
+	int chips_per_floor;	/* The number of chips detected on each floor */
 	int curfloor;
 	int curchip;
 	int mh0_page;
@@ -85,14 +85,10 @@ struct doc_priv {
 	struct mtd_info *nextdoc;
 };
 
-/* Max number of eraseblocks to scan (from start of device) for the (I)NFTL
-   MediaHeader.  The spec says to just keep going, I think, but that's just
-   silly. */
-#define MAX_MEDIAHEADER_SCAN 8
-
 /* This is the syndrome computed by the HW ecc generator upon reading an empty
    page, one with all 0xff for data and stored ecc code. */
 static u_char empty_read_syndrome[6] = { 0x26, 0xff, 0x6d, 0x47, 0x73, 0x7a };
+
 /* This is the ecc value computed by the HW ecc generator upon writing an empty
    page, one with all 0xff for data. */
 static u_char empty_write_ecc[6] = { 0x4b, 0x00, 0xe2, 0x0e, 0x93, 0xf7 };
@@ -103,35 +99,36 @@ static u_char empty_write_ecc[6] = { 0x4b, 0x00, 0xe2, 0x0e, 0x93, 0xf7 };
 #define DoC_is_Millennium(doc) ((doc)->ChipID == DOC_ChipID_DocMil)
 #define DoC_is_2000(doc) ((doc)->ChipID == DOC_ChipID_Doc2k)
 
-static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd);
+static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
+			      unsigned int bitmask);
 static void doc200x_select_chip(struct mtd_info *mtd, int chip);
 
-static int debug=0;
+static int debug = 0;
 module_param(debug, int, 0);
 
-static int try_dword=1;
+static int try_dword = 1;
 module_param(try_dword, int, 0);
 
-static int no_ecc_failures=0;
+static int no_ecc_failures = 0;
 module_param(no_ecc_failures, int, 0);
 
-#ifdef CONFIG_MTD_PARTITIONS
-static int no_autopart=0;
+static int no_autopart = 0;
 module_param(no_autopart, int, 0);
-#endif
 
-#ifdef MTD_NAND_DISKONCHIP_BBTWRITE
-static int inftl_bbt_write=1;
+static int show_firmware_partition = 0;
+module_param(show_firmware_partition, int, 0);
+
+#ifdef CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE
+static int inftl_bbt_write = 1;
 #else
-static int inftl_bbt_write=0;
+static int inftl_bbt_write = 0;
 #endif
 module_param(inftl_bbt_write, int, 0);
 
-static unsigned long doc_config_location = CONFIG_MTD_DISKONCHIP_PROBE_ADDRESS;
+static unsigned long doc_config_location = CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS;
 module_param(doc_config_location, ulong, 0);
 MODULE_PARM_DESC(doc_config_location, "Physical memory address at which to probe for DiskOnChip");
 
-
 /* Sector size for HW ECC */
 #define SECTOR_SIZE 512
 /* The sector bytes are packed into NB_DATA 10 bit words */
@@ -155,7 +152,7 @@ static struct rs_control *rs_decoder;
  * some comments, improved a minor bit and converted it to make use
  * of the generic Reed-Solomon libary. tglx
  */
-static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
+static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc)
 {
 	int i, j, nerr, errpos[8];
 	uint8_t parity;
@@ -176,11 +173,11 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
 	 *  s[i] = ds[3]x^3 + ds[2]x^2 + ds[1]x^1 + ds[0]
 	 *  where x = alpha^(FCR + i)
 	 */
-	for(j = 1; j < NROOTS; j++) {
-		if(ds[j] == 0)
+	for (j = 1; j < NROOTS; j++) {
+		if (ds[j] == 0)
 			continue;
 		tmp = rs->index_of[ds[j]];
-		for(i = 0; i < NROOTS; i++)
+		for (i = 0; i < NROOTS; i++)
 			s[i] ^= rs->alpha_to[rs_modnn(rs, tmp + (FCR + i) * j)];
 	}
 
@@ -201,7 +198,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
 	 * but they are given by the design of the de/encoder circuit
 	 * in the DoC ASIC's.
 	 */
-	for(i = 0;i < nerr; i++) {
+	for (i = 0; i < nerr; i++) {
 		int index, bitpos, pos = 1015 - errpos[i];
 		uint8_t val;
 		if (pos >= NB_DATA && pos < 1019)
@@ -213,8 +210,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
 			   can be modified since pos is even */
 			index = (pos >> 3) ^ 1;
 			bitpos = pos & 7;
-			if ((index >= 0 && index < SECTOR_SIZE) ||
-			    index == (SECTOR_SIZE + 1)) {
+			if ((index >= 0 && index < SECTOR_SIZE) || index == (SECTOR_SIZE + 1)) {
 				val = (uint8_t) (errval[i] >> (2 + bitpos));
 				parity ^= val;
 				if (index < SECTOR_SIZE)
@@ -224,9 +220,8 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
 			bitpos = (bitpos + 10) & 7;
 			if (bitpos == 0)
 				bitpos = 8;
-			if ((index >= 0 && index < SECTOR_SIZE) ||
-			    index == (SECTOR_SIZE + 1)) {
-				val = (uint8_t)(errval[i] << (8 - bitpos));
+			if ((index >= 0 && index < SECTOR_SIZE) || index == (SECTOR_SIZE + 1)) {
+				val = (uint8_t) (errval[i] << (8 - bitpos));
 				parity ^= val;
 				if (index < SECTOR_SIZE)
 					data[index] ^= val;
@@ -261,7 +256,8 @@ static int _DoC_WaitReady(struct doc_priv *doc)
 	void __iomem *docptr = doc->virtadr;
 	unsigned long timeo = jiffies + (HZ * 10);
 
-	if(debug) printk("_DoC_WaitReady...\n");
+	if (debug)
+		printk("_DoC_WaitReady...\n");
 	/* Out-of-line routine to wait for chip response */
 	if (DoC_is_MillenniumPlus(doc)) {
 		while ((ReadDOC(docptr, Mplus_FlashControl) & CDSN_CTRL_FR_B_MASK) != CDSN_CTRL_FR_B_MASK) {
@@ -306,7 +302,8 @@ static inline int DoC_WaitReady(struct doc_priv *doc)
 		DoC_Delay(doc, 2);
 	}
 
-	if(debug) printk("DoC_WaitReady OK\n");
+	if (debug)
+		printk("DoC_WaitReady OK\n");
 	return ret;
 }
 
@@ -316,7 +313,8 @@ static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 
-	if(debug)printk("write_byte %02x\n", datum);
+	if (debug)
+		printk("write_byte %02x\n", datum);
 	WriteDOC(datum, docptr, CDSNSlowIO);
 	WriteDOC(datum, docptr, 2k_CDSN_IO);
 }
@@ -331,37 +329,39 @@ static u_char doc2000_read_byte(struct mtd_info *mtd)
 	ReadDOC(docptr, CDSNSlowIO);
 	DoC_Delay(doc, 2);
 	ret = ReadDOC(docptr, 2k_CDSN_IO);
-	if (debug) printk("read_byte returns %02x\n", ret);
+	if (debug)
+		printk("read_byte returns %02x\n", ret);
 	return ret;
 }
 
-static void doc2000_writebuf(struct mtd_info *mtd,
-			     const u_char *buf, int len)
+static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 	int i;
-	if (debug)printk("writebuf of %d bytes: ", len);
-	for (i=0; i < len; i++) {
+	if (debug)
+		printk("writebuf of %d bytes: ", len);
+	for (i = 0; i < len; i++) {
 		WriteDOC_(buf[i], docptr, DoC_2k_CDSN_IO + i);
 		if (debug && i < 16)
 			printk("%02x ", buf[i]);
 	}
-	if (debug) printk("\n");
+	if (debug)
+		printk("\n");
 }
 
-static void doc2000_readbuf(struct mtd_info *mtd,
-			    u_char *buf, int len)
+static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
-	if (debug)printk("readbuf of %d bytes: ", len);
+	if (debug)
+		printk("readbuf of %d bytes: ", len);
 
-	for (i=0; i < len; i++) {
+	for (i = 0; i < len; i++) {
 		buf[i] = ReadDOC(docptr, 2k_CDSN_IO + i);
 	}
 }
@@ -374,28 +374,28 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd,
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
-	if (debug) printk("readbuf_dword of %d bytes: ", len);
+	if (debug)
+		printk("readbuf_dword of %d bytes: ", len);
 
-	if (unlikely((((unsigned long)buf)|len) & 3)) {
-		for (i=0; i < len; i++) {
-			*(uint8_t *)(&buf[i]) = ReadDOC(docptr, 2k_CDSN_IO + i);
+	if (unlikely((((unsigned long)buf) | len) & 3)) {
+		for (i = 0; i < len; i++) {
+			*(uint8_t *) (&buf[i]) = ReadDOC(docptr, 2k_CDSN_IO + i);
 		}
 	} else {
-		for (i=0; i < len; i+=4) {
-			*(uint32_t*)(&buf[i]) = readl(docptr + DoC_2k_CDSN_IO + i);
+		for (i = 0; i < len; i += 4) {
+			*(uint32_t*) (&buf[i]) = readl(docptr + DoC_2k_CDSN_IO + i);
 		}
 	}
 }
 
-static int doc2000_verifybuf(struct mtd_info *mtd,
-			      const u_char *buf, int len)
+static int doc2000_verifybuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
-	for (i=0; i < len; i++)
+	for (i = 0; i < len; i++)
 		if (buf[i] != ReadDOC(docptr, 2k_CDSN_IO))
 			return -EFAULT;
 	return 0;
@@ -408,12 +408,15 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
 	uint16_t ret;
 
 	doc200x_select_chip(mtd, nr);
-	doc200x_hwcontrol(mtd, NAND_CTL_SETCLE);
-	this->write_byte(mtd, NAND_CMD_READID);
-	doc200x_hwcontrol(mtd, NAND_CTL_CLRCLE);
-	doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
-	this->write_byte(mtd, 0);
-	doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
+	doc200x_hwcontrol(mtd, NAND_CMD_READID,
+			  NAND_CTRL_CLE | NAND_CTRL_CHANGE);
+	doc200x_hwcontrol(mtd, 0, NAND_CTRL_ALE | NAND_CTRL_CHANGE);
+	doc200x_hwcontrol(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
+
+	/* We cant' use dev_ready here, but at least we wait for the
+	 * command to complete
+	 */
+	udelay(50);
 
 	ret = this->read_byte(mtd) << 8;
 	ret |= this->read_byte(mtd);
@@ -426,12 +429,13 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
 		} ident;
 		void __iomem *docptr = doc->virtadr;
 
-		doc200x_hwcontrol(mtd, NAND_CTL_SETCLE);
-		doc2000_write_byte(mtd, NAND_CMD_READID);
-		doc200x_hwcontrol(mtd, NAND_CTL_CLRCLE);
-		doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
-		doc2000_write_byte(mtd, 0);
-		doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
+		doc200x_hwcontrol(mtd, NAND_CMD_READID,
+				  NAND_CTRL_CLE | NAND_CTRL_CHANGE);
+		doc200x_hwcontrol(mtd, 0, NAND_CTRL_ALE | NAND_CTRL_CHANGE);
+		doc200x_hwcontrol(mtd, NAND_CMD_NONE,
+				  NAND_NCE | NAND_CTRL_CHANGE);
+
+		udelay(50);
 
 		ident.dword = readl(docptr + DoC_2k_CDSN_IO);
 		if (((ident.byte[0] << 8) | ident.byte[1]) == ret) {
@@ -465,7 +469,7 @@ static void __init doc2000_count_chips(struct mtd_info *mtd)
 	printk(KERN_DEBUG "Detected %d chips per floor.\n", i);
 }
 
-static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
+static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this)
 {
 	struct doc_priv *doc = this->priv;
 
@@ -496,30 +500,28 @@ static u_char doc2001_read_byte(struct mtd_info *mtd)
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 
-	/*ReadDOC(docptr, CDSNSlowIO); */
+	//ReadDOC(docptr, CDSNSlowIO);
 	/* 11.4.5 -- delay twice to allow extended length cycle */
 	DoC_Delay(doc, 2);
 	ReadDOC(docptr, ReadPipeInit);
-	/*return ReadDOC(docptr, Mil_CDSN_IO); */
+	//return ReadDOC(docptr, Mil_CDSN_IO);
 	return ReadDOC(docptr, LastDataRead);
 }
 
-static void doc2001_writebuf(struct mtd_info *mtd,
-			     const u_char *buf, int len)
+static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
-	for (i=0; i < len; i++)
+	for (i = 0; i < len; i++)
 		WriteDOC_(buf[i], docptr, DoC_Mil_CDSN_IO + i);
 	/* Terminate write pipeline */
 	WriteDOC(0x00, docptr, WritePipeTerm);
 }
 
-static void doc2001_readbuf(struct mtd_info *mtd,
-			    u_char *buf, int len)
+static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
@@ -529,15 +531,14 @@ static void doc2001_readbuf(struct mtd_info *mtd,
 	/* Start read pipeline */
 	ReadDOC(docptr, ReadPipeInit);
 
-	for (i=0; i < len-1; i++)
+	for (i = 0; i < len - 1; i++)
 		buf[i] = ReadDOC(docptr, Mil_CDSN_IO + (i & 0xff));
 
 	/* Terminate read pipeline */
 	buf[i] = ReadDOC(docptr, LastDataRead);
 }
 
-static int doc2001_verifybuf(struct mtd_info *mtd,
-			     const u_char *buf, int len)
+static int doc2001_verifybuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
@@ -547,7 +548,7 @@ static int doc2001_verifybuf(struct mtd_info *mtd,
 	/* Start read pipeline */
 	ReadDOC(docptr, ReadPipeInit);
 
-	for (i=0; i < len-1; i++)
+	for (i = 0; i < len - 1; i++)
 		if (buf[i] != ReadDOC(docptr, Mil_CDSN_IO)) {
 			ReadDOC(docptr, LastDataRead);
 			return i;
@@ -567,81 +568,84 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd)
 	ReadDOC(docptr, Mplus_ReadPipeInit);
 	ReadDOC(docptr, Mplus_ReadPipeInit);
 	ret = ReadDOC(docptr, Mplus_LastDataRead);
-	if (debug) printk("read_byte returns %02x\n", ret);
+	if (debug)
+		printk("read_byte returns %02x\n", ret);
 	return ret;
 }
 
-static void doc2001plus_writebuf(struct mtd_info *mtd,
-			     const u_char *buf, int len)
+static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
-	if (debug)printk("writebuf of %d bytes: ", len);
-	for (i=0; i < len; i++) {
+	if (debug)
+		printk("writebuf of %d bytes: ", len);
+	for (i = 0; i < len; i++) {
 		WriteDOC_(buf[i], docptr, DoC_Mil_CDSN_IO + i);
 		if (debug && i < 16)
 			printk("%02x ", buf[i]);
 	}
-	if (debug) printk("\n");
+	if (debug)
+		printk("\n");
 }
 
-static void doc2001plus_readbuf(struct mtd_info *mtd,
-			    u_char *buf, int len)
+static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
-	if (debug)printk("readbuf of %d bytes: ", len);
+	if (debug)
+		printk("readbuf of %d bytes: ", len);
 
 	/* Start read pipeline */
 	ReadDOC(docptr, Mplus_ReadPipeInit);
 	ReadDOC(docptr, Mplus_ReadPipeInit);
 
-	for (i=0; i < len-2; i++) {
+	for (i = 0; i < len - 2; i++) {
 		buf[i] = ReadDOC(docptr, Mil_CDSN_IO);
 		if (debug && i < 16)
 			printk("%02x ", buf[i]);
 	}
 
 	/* Terminate read pipeline */
-	buf[len-2] = ReadDOC(docptr, Mplus_LastDataRead);
+	buf[len - 2] = ReadDOC(docptr, Mplus_LastDataRead);
 	if (debug && i < 16)
-		printk("%02x ", buf[len-2]);
-	buf[len-1] = ReadDOC(docptr, Mplus_LastDataRead);
+		printk("%02x ", buf[len - 2]);
+	buf[len - 1] = ReadDOC(docptr, Mplus_LastDataRead);
 	if (debug && i < 16)
-		printk("%02x ", buf[len-1]);
-	if (debug) printk("\n");
+		printk("%02x ", buf[len - 1]);
+	if (debug)
+		printk("\n");
 }
 
-static int doc2001plus_verifybuf(struct mtd_info *mtd,
-			     const u_char *buf, int len)
+static int doc2001plus_verifybuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
-	if (debug)printk("verifybuf of %d bytes: ", len);
+	if (debug)
+		printk("verifybuf of %d bytes: ", len);
 
 	/* Start read pipeline */
 	ReadDOC(docptr, Mplus_ReadPipeInit);
 	ReadDOC(docptr, Mplus_ReadPipeInit);
 
-	for (i=0; i < len-2; i++)
+	for (i = 0; i < len - 2; i++)
 		if (buf[i] != ReadDOC(docptr, Mil_CDSN_IO)) {
 			ReadDOC(docptr, Mplus_LastDataRead);
 			ReadDOC(docptr, Mplus_LastDataRead);
 			return i;
 		}
-	if (buf[len-2] != ReadDOC(docptr, Mplus_LastDataRead))
-		return len-2;
-	if (buf[len-1] != ReadDOC(docptr, Mplus_LastDataRead))
-		return len-1;
+	if (buf[len - 2] != ReadDOC(docptr, Mplus_LastDataRead))
+		return len - 2;
+	if (buf[len - 1] != ReadDOC(docptr, Mplus_LastDataRead))
+		return len - 1;
 	return 0;
 }
 
@@ -652,7 +656,8 @@ static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
 	void __iomem *docptr = doc->virtadr;
 	int floor = 0;
 
-	if(debug)printk("select chip (%d)\n", chip);
+	if (debug)
+		printk("select chip (%d)\n", chip);
 
 	if (chip == -1) {
 		/* Disable flash internally */
@@ -661,7 +666,7 @@ static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
 	}
 
 	floor = chip / doc->chips_per_floor;
-	chip -= (floor *  doc->chips_per_floor);
+	chip -= (floor * doc->chips_per_floor);
 
 	/* Assert ChipEnable and deassert WriteProtect */
 	WriteDOC((DOC_FLASH_CE), docptr, Mplus_FlashSelect);
@@ -678,65 +683,54 @@ static void doc200x_select_chip(struct mtd_info *mtd, int chip)
 	void __iomem *docptr = doc->virtadr;
 	int floor = 0;
 
-	if(debug)printk("select chip (%d)\n", chip);
+	if (debug)
+		printk("select chip (%d)\n", chip);
 
 	if (chip == -1)
 		return;
 
 	floor = chip / doc->chips_per_floor;
-	chip -= (floor *  doc->chips_per_floor);
+	chip -= (floor * doc->chips_per_floor);
 
 	/* 11.4.4 -- deassert CE before changing chip */
-	doc200x_hwcontrol(mtd, NAND_CTL_CLRNCE);
+	doc200x_hwcontrol(mtd, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE);
 
 	WriteDOC(floor, docptr, FloorSelect);
 	WriteDOC(chip, docptr, CDSNDeviceSelect);
 
-	doc200x_hwcontrol(mtd, NAND_CTL_SETNCE);
+	doc200x_hwcontrol(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
 	doc->curchip = chip;
 	doc->curfloor = floor;
 }
 
-static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd)
+#define CDSN_CTRL_MSK (CDSN_CTRL_CE | CDSN_CTRL_CLE | CDSN_CTRL_ALE)
+
+static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
+			      unsigned int ctrl)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
 
-	switch(cmd) {
-	case NAND_CTL_SETNCE:
-		doc->CDSNControl |= CDSN_CTRL_CE;
-		break;
-	case NAND_CTL_CLRNCE:
-		doc->CDSNControl &= ~CDSN_CTRL_CE;
-		break;
-	case NAND_CTL_SETCLE:
-		doc->CDSNControl |= CDSN_CTRL_CLE;
-		break;
-	case NAND_CTL_CLRCLE:
-		doc->CDSNControl &= ~CDSN_CTRL_CLE;
-		break;
-	case NAND_CTL_SETALE:
-		doc->CDSNControl |= CDSN_CTRL_ALE;
-		break;
-	case NAND_CTL_CLRALE:
-		doc->CDSNControl &= ~CDSN_CTRL_ALE;
-		break;
-	case NAND_CTL_SETWP:
-		doc->CDSNControl |= CDSN_CTRL_WP;
-		break;
-	case NAND_CTL_CLRWP:
-		doc->CDSNControl &= ~CDSN_CTRL_WP;
-		break;
+	if (ctrl & NAND_CTRL_CHANGE) {
+		doc->CDSNControl &= ~CDSN_CTRL_MSK;
+		doc->CDSNControl |= ctrl & CDSN_CTRL_MSK;
+		if (debug)
+			printk("hwcontrol(%d): %02x\n", cmd, doc->CDSNControl);
+		WriteDOC(doc->CDSNControl, docptr, CDSNControl);
+		/* 11.4.3 -- 4 NOPs after CSDNControl write */
+		DoC_Delay(doc, 4);
+	}
+	if (cmd != NAND_CMD_NONE) {
+		if (DoC_is_2000(doc))
+			doc2000_write_byte(mtd, cmd);
+		else
+			doc2001_write_byte(mtd, cmd);
 	}
-	if (debug)printk("hwcontrol(%d): %02x\n", cmd, doc->CDSNControl);
-	WriteDOC(doc->CDSNControl, docptr, CDSNControl);
-	/* 11.4.3 -- 4 NOPs after CSDNControl write */
-	DoC_Delay(doc, 4);
 }
 
-static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
+static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
@@ -757,9 +751,9 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col
 	if (command == NAND_CMD_SEQIN) {
 		int readcmd;
 
-		if (column >= mtd->oobblock) {
+		if (column >= mtd->writesize) {
 			/* OOB area */
-			column -= mtd->oobblock;
+			column -= mtd->writesize;
 			readcmd = NAND_CMD_READOOB;
 		} else if (column < 256) {
 			/* First 256 bytes --> READ0 */
@@ -783,25 +777,26 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col
 			WriteDOC(column, docptr, Mplus_FlashAddress);
 		}
 		if (page_addr != -1) {
-			WriteDOC((unsigned char) (page_addr & 0xff), docptr, Mplus_FlashAddress);
-			WriteDOC((unsigned char) ((page_addr >> 8) & 0xff), docptr, Mplus_FlashAddress);
+			WriteDOC((unsigned char)(page_addr & 0xff), docptr, Mplus_FlashAddress);
+			WriteDOC((unsigned char)((page_addr >> 8) & 0xff), docptr, Mplus_FlashAddress);
 			/* One more address cycle for higher density devices */
 			if (this->chipsize & 0x0c000000) {
-				WriteDOC((unsigned char) ((page_addr >> 16) & 0x0f), docptr, Mplus_FlashAddress);
+				WriteDOC((unsigned char)((page_addr >> 16) & 0x0f), docptr, Mplus_FlashAddress);
 				printk("high density\n");
 			}
 		}
 		WriteDOC(0, docptr, Mplus_WritePipeTerm);
 		WriteDOC(0, docptr, Mplus_WritePipeTerm);
 		/* deassert ALE */
-		if (command == NAND_CMD_READ0 || command == NAND_CMD_READ1 || command == NAND_CMD_READOOB || command == NAND_CMD_READID)
+		if (command == NAND_CMD_READ0 || command == NAND_CMD_READ1 ||
+		    command == NAND_CMD_READOOB || command == NAND_CMD_READID)
 			WriteDOC(0, docptr, Mplus_FlashControl);
 	}
 
 	/*
 	 * program and erase have their own busy handlers
 	 * status and sequential in needs no delay
-	*/
+	 */
 	switch (command) {
 
 	case NAND_CMD_PAGEPROG:
@@ -818,26 +813,26 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col
 		WriteDOC(NAND_CMD_STATUS, docptr, Mplus_FlashCmd);
 		WriteDOC(0, docptr, Mplus_WritePipeTerm);
 		WriteDOC(0, docptr, Mplus_WritePipeTerm);
-		while ( !(this->read_byte(mtd) & 0x40));
+		while (!(this->read_byte(mtd) & 0x40)) ;
 		return;
 
-	/* This applies to read commands */
+		/* This applies to read commands */
 	default:
 		/*
 		 * If we don't have access to the busy pin, we apply the given
 		 * command delay
-		*/
+		 */
 		if (!this->dev_ready) {
-			udelay (this->chip_delay);
+			udelay(this->chip_delay);
 			return;
 		}
 	}
 
 	/* Apply this short delay always to ensure that we do wait tWB in
 	 * any case on any machine. */
-	ndelay (100);
+	ndelay(100);
 	/* wait until command is processed */
-	while (!this->dev_ready(mtd));
+	while (!this->dev_ready(mtd)) ;
 }
 
 static int doc200x_dev_ready(struct mtd_info *mtd)
@@ -850,23 +845,25 @@ static int doc200x_dev_ready(struct mtd_info *mtd)
 		/* 11.4.2 -- must NOP four times before checking FR/B# */
 		DoC_Delay(doc, 4);
 		if ((ReadDOC(docptr, Mplus_FlashControl) & CDSN_CTRL_FR_B_MASK) != CDSN_CTRL_FR_B_MASK) {
-			if(debug)
+			if (debug)
 				printk("not ready\n");
 			return 0;
 		}
-		if (debug)printk("was ready\n");
+		if (debug)
+			printk("was ready\n");
 		return 1;
 	} else {
 		/* 11.4.2 -- must NOP four times before checking FR/B# */
 		DoC_Delay(doc, 4);
 		if (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
-			if(debug)
+			if (debug)
 				printk("not ready\n");
 			return 0;
 		}
 		/* 11.4.2 -- Must NOP twice if it's ready */
 		DoC_Delay(doc, 2);
-		if (debug)printk("was ready\n");
+		if (debug)
+			printk("was ready\n");
 		return 1;
 	}
 }
@@ -885,7 +882,7 @@ static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
 	void __iomem *docptr = doc->virtadr;
 
 	/* Prime the ECC engine */
-	switch(mode) {
+	switch (mode) {
 	case NAND_ECC_READ:
 		WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
 		WriteDOC(DOC_ECC_EN, docptr, ECCConf);
@@ -904,7 +901,7 @@ static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
 	void __iomem *docptr = doc->virtadr;
 
 	/* Prime the ECC engine */
-	switch(mode) {
+	switch (mode) {
 	case NAND_ECC_READ:
 		WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
 		WriteDOC(DOC_ECC_EN, docptr, Mplus_ECCConf);
@@ -917,8 +914,7 @@ static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
 }
 
 /* This code is only called on write */
-static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
-				 unsigned char *ecc_code)
+static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
@@ -962,7 +958,8 @@ static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 		   often.  It could be optimized away by examining the data in
 		   the writebuf routine, and remembering the result. */
 		for (i = 0; i < 512; i++) {
-			if (dat[i] == 0xff) continue;
+			if (dat[i] == 0xff)
+				continue;
 			emptymatch = 0;
 			break;
 		}
@@ -970,17 +967,20 @@ static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 	/* If emptymatch still =1, we do have an all-0xff data buffer.
 	   Return all-0xff ecc value instead of the computed one, so
 	   it'll look just like a freshly-erased page. */
-	if (emptymatch) memset(ecc_code, 0xff, 6);
+	if (emptymatch)
+		memset(ecc_code, 0xff, 6);
 #endif
 	return 0;
 }
 
-static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
+static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
+				u_char *read_ecc, u_char *isnull)
 {
 	int i, ret = 0;
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 	void __iomem *docptr = doc->virtadr;
+	uint8_t calc_ecc[6];
 	volatile u_char dummy;
 	int emptymatch = 1;
 
@@ -1013,18 +1013,20 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_
 		   all-0xff data and stored ecc block.  Check the stored ecc. */
 		if (emptymatch) {
 			for (i = 0; i < 6; i++) {
-				if (read_ecc[i] == 0xff) continue;
+				if (read_ecc[i] == 0xff)
+					continue;
 				emptymatch = 0;
 				break;
 			}
 		}
 		/* If emptymatch still =1, check the data block. */
 		if (emptymatch) {
-		/* Note: this somewhat expensive test should not be triggered
-		   often.  It could be optimized away by examining the data in
-		   the readbuf routine, and remembering the result. */
+			/* Note: this somewhat expensive test should not be triggered
+			   often.  It could be optimized away by examining the data in
+			   the readbuf routine, and remembering the result. */
 			for (i = 0; i < 512; i++) {
-				if (dat[i] == 0xff) continue;
+				if (dat[i] == 0xff)
+					continue;
 				emptymatch = 0;
 				break;
 			}
@@ -1033,7 +1035,8 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_
 		   erased block, in which case the ECC will not come out right.
 		   We'll suppress the error and tell the caller everything's
 		   OK.  Because it is. */
-		if (!emptymatch) ret = doc_ecc_decode (rs_decoder, dat, calc_ecc);
+		if (!emptymatch)
+			ret = doc_ecc_decode(rs_decoder, dat, calc_ecc);
 		if (ret > 0)
 			printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret);
 	}
@@ -1048,13 +1051,22 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_
 	return ret;
 }
 
-/*u_char mydatabuf[528]; */
-
-static struct nand_oobinfo doc200x_oobinfo = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
+//u_char mydatabuf[528];
+
+/* The strange out-of-order .oobfree list below is a (possibly unneeded)
+ * attempt to retain compatibility.  It used to read:
+ * 	.oobfree = { {8, 8} }
+ * Since that leaves two bytes unusable, it was changed.  But the following
+ * scheme might affect existing jffs2 installs by moving the cleanmarker:
+ * 	.oobfree = { {6, 10} }
+ * jffs2 seems to handle the above gracefully, but the current scheme seems
+ * safer.  The only problem with it is that any code that parses oobfree must
+ * be able to handle out-of-order segments.
+ */
+static struct nand_ecclayout doc200x_oobinfo = {
 	.eccbytes = 6,
 	.eccpos = {0, 1, 2, 3, 4, 5},
-	.oobfree = { {8, 8} }
+	.oobfree = {{8, 8}, {6, 2}}
 };
 
 /* Find the (I)NFTL Media Header, and optionally also the mirror media header.
@@ -1063,28 +1075,28 @@ static struct nand_oobinfo doc200x_oobinfo = {
    either "ANAND" or "BNAND".  If findmirror=1, also look for the mirror media
    header.  The page #s of the found media headers are placed in mh0_page and
    mh1_page in the DOC private structure. */
-static int __init find_media_headers(struct mtd_info *mtd, u_char *buf,
-				     const char *id, int findmirror)
+static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const char *id, int findmirror)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
-	unsigned offs, end = (MAX_MEDIAHEADER_SCAN << this->phys_erase_shift);
+	unsigned offs;
 	int ret;
 	size_t retlen;
 
-	end = min(end, mtd->size); /* paranoia */
-	for (offs = 0; offs < end; offs += mtd->erasesize) {
-		ret = mtd->read(mtd, offs, mtd->oobblock, &retlen, buf);
-		if (retlen != mtd->oobblock) continue;
+	for (offs = 0; offs < mtd->size; offs += mtd->erasesize) {
+		ret = mtd->read(mtd, offs, mtd->writesize, &retlen, buf);
+		if (retlen != mtd->writesize)
+			continue;
 		if (ret) {
-			printk(KERN_WARNING "ECC error scanning DOC at 0x%x\n",
-				offs);
+			printk(KERN_WARNING "ECC error scanning DOC at 0x%x\n", offs);
 		}
-		if (memcmp(buf, id, 6)) continue;
+		if (memcmp(buf, id, 6))
+			continue;
 		printk(KERN_INFO "Found DiskOnChip %s Media Header at 0x%x\n", id, offs);
 		if (doc->mh0_page == -1) {
 			doc->mh0_page = offs >> this->page_shift;
-			if (!findmirror) return 1;
+			if (!findmirror)
+				return 1;
 			continue;
 		}
 		doc->mh1_page = offs >> this->page_shift;
@@ -1097,8 +1109,8 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf,
 	/* Only one mediaheader was found.  We want buf to contain a
 	   mediaheader on return, so we'll have to re-read the one we found. */
 	offs = doc->mh0_page << this->page_shift;
-	ret = mtd->read(mtd, offs, mtd->oobblock, &retlen, buf);
-	if (retlen != mtd->oobblock) {
+	ret = mtd->read(mtd, offs, mtd->writesize, &retlen, buf);
+	if (retlen != mtd->writesize) {
 		/* Insanity.  Give up. */
 		printk(KERN_ERR "Read DiskOnChip Media Header once, but can't reread it???\n");
 		return 0;
@@ -1106,8 +1118,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf,
 	return 1;
 }
 
-static inline int __init nftl_partscan(struct mtd_info *mtd,
-				struct mtd_partition *parts)
+static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
@@ -1115,19 +1126,23 @@ static inline int __init nftl_partscan(struct mtd_info *mtd,
 	u_char *buf;
 	struct NFTLMediaHeader *mh;
 	const unsigned psize = 1 << this->page_shift;
+	int numparts = 0;
 	unsigned blocks, maxblocks;
 	int offs, numheaders;
 
-	buf = kmalloc(mtd->oobblock, GFP_KERNEL);
+	buf = kmalloc(mtd->writesize, GFP_KERNEL);
 	if (!buf) {
 		printk(KERN_ERR "DiskOnChip mediaheader kmalloc failed!\n");
 		return 0;
 	}
-	if (!(numheaders=find_media_headers(mtd, buf, "ANAND", 1))) goto out;
-	mh = (struct NFTLMediaHeader *) buf;
+	if (!(numheaders = find_media_headers(mtd, buf, "ANAND", 1)))
+		goto out;
+	mh = (struct NFTLMediaHeader *)buf;
+
+	mh->NumEraseUnits = le16_to_cpu(mh->NumEraseUnits);
+	mh->FirstPhysicalEUN = le16_to_cpu(mh->FirstPhysicalEUN);
+	mh->FormattedSize = le32_to_cpu(mh->FormattedSize);
 
-/*#ifdef CONFIG_MTD_DEBUG_VERBOSE */
-/*	if (CONFIG_MTD_DEBUG_VERBOSE >= 2) */
 	printk(KERN_INFO "    DataOrgID        = %s\n"
 			 "    NumEraseUnits    = %d\n"
 			 "    FirstPhysicalEUN = %d\n"
@@ -1136,7 +1151,6 @@ static inline int __init nftl_partscan(struct mtd_info *mtd,
 		mh->DataOrgID, mh->NumEraseUnits,
 		mh->FirstPhysicalEUN, mh->FormattedSize,
 		mh->UnitSizeFactor);
-/*#endif */
 
 	blocks = mtd->size >> this->phys_erase_shift;
 	maxblocks = min(32768U, mtd->erasesize - psize);
@@ -1145,8 +1159,8 @@ static inline int __init nftl_partscan(struct mtd_info *mtd,
 		/* Auto-determine UnitSizeFactor.  The constraints are:
 		   - There can be at most 32768 virtual blocks.
 		   - There can be at most (virtual block size - page size)
-		     virtual blocks (because MediaHeader+BBT must fit in 1).
-		*/
+		   virtual blocks (because MediaHeader+BBT must fit in 1).
+		 */
 		mh->UnitSizeFactor = 0xff;
 		while (blocks > maxblocks) {
 			blocks >>= 1;
@@ -1179,31 +1193,35 @@ static inline int __init nftl_partscan(struct mtd_info *mtd,
 	offs <<= this->page_shift;
 	offs += mtd->erasesize;
 
-	/*parts[0].name = " DiskOnChip Boot / Media Header partition"; */
-	/*parts[0].offset = 0; */
-	/*parts[0].size = offs; */
+	if (show_firmware_partition == 1) {
+		parts[0].name = " DiskOnChip Firmware / Media Header partition";
+		parts[0].offset = 0;
+		parts[0].size = offs;
+		numparts = 1;
+	}
+
+	parts[numparts].name = " DiskOnChip BDTL partition";
+	parts[numparts].offset = offs;
+	parts[numparts].size = (mh->NumEraseUnits - numheaders) << this->bbt_erase_shift;
 
-	parts[0].name = " DiskOnChip BDTL partition";
-	parts[0].offset = offs;
-	parts[0].size = (mh->NumEraseUnits - numheaders) << this->bbt_erase_shift;
+	offs += parts[numparts].size;
+	numparts++;
 
-	offs += parts[0].size;
 	if (offs < mtd->size) {
-		parts[1].name = " DiskOnChip Remainder partition";
-		parts[1].offset = offs;
-		parts[1].size = mtd->size - offs;
-		ret = 2;
-		goto out;
+		parts[numparts].name = " DiskOnChip Remainder partition";
+		parts[numparts].offset = offs;
+		parts[numparts].size = mtd->size - offs;
+		numparts++;
 	}
-	ret = 1;
-out:
+
+	ret = numparts;
+ out:
 	kfree(buf);
 	return ret;
 }
 
 /* This is a stripped-down copy of the code in inftlmount.c */
-static inline int __init inftl_partscan(struct mtd_info *mtd,
-				 struct mtd_partition *parts)
+static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
 {
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
@@ -1220,15 +1238,16 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
 	if (inftl_bbt_write)
 		end -= (INFTL_BBT_RESERVED_BLOCKS << this->phys_erase_shift);
 
-	buf = kmalloc(mtd->oobblock, GFP_KERNEL);
+	buf = kmalloc(mtd->writesize, GFP_KERNEL);
 	if (!buf) {
 		printk(KERN_ERR "DiskOnChip mediaheader kmalloc failed!\n");
 		return 0;
 	}
 
-	if (!find_media_headers(mtd, buf, "BNAND", 0)) goto out;
+	if (!find_media_headers(mtd, buf, "BNAND", 0))
+		goto out;
 	doc->mh1_page = doc->mh0_page + (4096 >> this->page_shift);
-	mh = (struct INFTLMediaHeader *) buf;
+	mh = (struct INFTLMediaHeader *)buf;
 
 	mh->NoOfBootImageBlocks = le32_to_cpu(mh->NoOfBootImageBlocks);
 	mh->NoOfBinaryPartitions = le32_to_cpu(mh->NoOfBinaryPartitions);
@@ -1237,8 +1256,6 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
 	mh->FormatFlags = le32_to_cpu(mh->FormatFlags);
 	mh->PercentUsed = le32_to_cpu(mh->PercentUsed);
 
-/*#ifdef CONFIG_MTD_DEBUG_VERBOSE */
-/*	if (CONFIG_MTD_DEBUG_VERBOSE >= 2) */
 	printk(KERN_INFO "    bootRecordID          = %s\n"
 			 "    NoOfBootImageBlocks   = %d\n"
 			 "    NoOfBinaryPartitions  = %d\n"
@@ -1256,7 +1273,6 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
 		((unsigned char *) &mh->OsakVersion)[2] & 0xf,
 		((unsigned char *) &mh->OsakVersion)[3] & 0xf,
 		mh->PercentUsed);
-/*#endif */
 
 	vshift = this->phys_erase_shift + mh->BlockMultiplierBits;
 
@@ -1282,8 +1298,6 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
 		ip->spareUnits = le32_to_cpu(ip->spareUnits);
 		ip->Reserved0 = le32_to_cpu(ip->Reserved0);
 
-/*#ifdef CONFIG_MTD_DEBUG_VERBOSE */
-/*		if (CONFIG_MTD_DEBUG_VERBOSE >= 2) */
 		printk(KERN_INFO	"    PARTITION[%d] ->\n"
 			"        virtualUnits    = %d\n"
 			"        firstUnit       = %d\n"
@@ -1293,16 +1307,14 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
 			i, ip->virtualUnits, ip->firstUnit,
 			ip->lastUnit, ip->flags,
 			ip->spareUnits);
-/*#endif */
 
-/*
-		if ((i == 0) && (ip->firstUnit > 0)) {
+		if ((show_firmware_partition == 1) &&
+		    (i == 0) && (ip->firstUnit > 0)) {
 			parts[0].name = " DiskOnChip IPL / Media Header partition";
 			parts[0].offset = 0;
 			parts[0].size = mtd->erasesize * ip->firstUnit;
 			numparts = 1;
 		}
-*/
 
 		if (ip->flags & INFTL_BINARY)
 			parts[numparts].name = " DiskOnChip BDK partition";
@@ -1311,8 +1323,10 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
 		parts[numparts].offset = ip->firstUnit << vshift;
 		parts[numparts].size = (1 + ip->lastUnit - ip->firstUnit) << vshift;
 		numparts++;
-		if (ip->lastUnit > lastvunit) lastvunit = ip->lastUnit;
-		if (ip->flags & INFTL_LAST) break;
+		if (ip->lastUnit > lastvunit)
+			lastvunit = ip->lastUnit;
+		if (ip->flags & INFTL_LAST)
+			break;
 	}
 	lastvunit++;
 	if ((lastvunit << vshift) < end) {
@@ -1322,7 +1336,7 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
 		numparts++;
 	}
 	ret = numparts;
-out:
+ out:
 	kfree(buf);
 	return ret;
 }
@@ -1334,11 +1348,12 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd)
 	struct doc_priv *doc = this->priv;
 	struct mtd_partition parts[2];
 
-	memset((char *) parts, 0, sizeof(parts));
+	memset((char *)parts, 0, sizeof(parts));
 	/* On NFTL, we have to find the media headers before we can read the
 	   BBTs, since they're stored in the media header eraseblocks. */
 	numparts = nftl_partscan(mtd, parts);
-	if (!numparts) return -EIO;
+	if (!numparts)
+		return -EIO;
 	this->bbt_td->options = NAND_BBT_ABSPAGE | NAND_BBT_8BIT |
 				NAND_BBT_SAVECONTENT | NAND_BBT_WRITE |
 				NAND_BBT_VERSION;
@@ -1385,8 +1400,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd)
 		this->bbt_td->pages[0] = 2;
 		this->bbt_md = NULL;
 	} else {
-		this->bbt_td->options = NAND_BBT_LASTBLOCK | NAND_BBT_8BIT |
-					NAND_BBT_VERSION;
+		this->bbt_td->options = NAND_BBT_LASTBLOCK | NAND_BBT_8BIT | NAND_BBT_VERSION;
 		if (inftl_bbt_write)
 			this->bbt_td->options |= NAND_BBT_WRITE;
 		this->bbt_td->offs = 8;
@@ -1396,8 +1410,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd)
 		this->bbt_td->reserved_block_code = 0x01;
 		this->bbt_td->pattern = "MSYS_BBT";
 
-		this->bbt_md->options = NAND_BBT_LASTBLOCK | NAND_BBT_8BIT |
-					NAND_BBT_VERSION;
+		this->bbt_md->options = NAND_BBT_LASTBLOCK | NAND_BBT_8BIT | NAND_BBT_VERSION;
 		if (inftl_bbt_write)
 			this->bbt_md->options |= NAND_BBT_WRITE;
 		this->bbt_md->offs = 8;
@@ -1412,12 +1425,13 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd)
 	   At least as nand_bbt.c is currently written. */
 	if ((ret = nand_scan_bbt(mtd, NULL)))
 		return ret;
-	memset((char *) parts, 0, sizeof(parts));
+	memset((char *)parts, 0, sizeof(parts));
 	numparts = inftl_partscan(mtd, parts);
 	/* At least for now, require the INFTL Media Header.  We could probably
 	   do without it for non-INFTL use, since all it gives us is
 	   autopartitioning, but I want to give it more thought. */
-	if (!numparts) return -EIO;
+	if (!numparts)
+		return -EIO;
 	add_mtd_device(mtd);
 #ifdef CONFIG_MTD_PARTITIONS
 	if (!no_autopart)
@@ -1431,7 +1445,6 @@ static inline int __init doc2000_init(struct mtd_info *mtd)
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 
-	this->write_byte = doc2000_write_byte;
 	this->read_byte = doc2000_read_byte;
 	this->write_buf = doc2000_writebuf;
 	this->read_buf = doc2000_readbuf;
@@ -1449,7 +1462,6 @@ static inline int __init doc2001_init(struct mtd_info *mtd)
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 
-	this->write_byte = doc2001_write_byte;
 	this->read_byte = doc2001_read_byte;
 	this->write_buf = doc2001_writebuf;
 	this->read_buf = doc2001_readbuf;
@@ -1481,16 +1493,15 @@ static inline int __init doc2001plus_init(struct mtd_info *mtd)
 	struct nand_chip *this = mtd->priv;
 	struct doc_priv *doc = this->priv;
 
-	this->write_byte = NULL;
 	this->read_byte = doc2001plus_read_byte;
 	this->write_buf = doc2001plus_writebuf;
 	this->read_buf = doc2001plus_readbuf;
 	this->verify_buf = doc2001plus_verifybuf;
 	this->scan_bbt = inftl_scan_bbt;
-	this->hwcontrol = NULL;
+	this->cmd_ctrl = NULL;
 	this->select_chip = doc2001plus_select_chip;
 	this->cmdfunc = doc2001plus_command;
-	this->enable_hwecc = doc2001plus_enable_hwecc;
+	this->ecc.hwctl = doc2001plus_enable_hwecc;
 
 	doc->chips_per_floor = 1;
 	mtd->name = "DiskOnChip Millennium Plus";
@@ -1498,7 +1509,7 @@ static inline int __init doc2001plus_init(struct mtd_info *mtd)
 	return 1;
 }
 
-static inline int __init doc_probe(unsigned long physadr)
+static int __init doc_probe(unsigned long physadr)
 {
 	unsigned char ChipID;
 	struct mtd_info *mtd;
@@ -1527,20 +1538,16 @@ static inline int __init doc_probe(unsigned long physadr)
 	save_control = ReadDOC(virtadr, DOCControl);
 
 	/* Reset the DiskOnChip ASIC */
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
-		 virtadr, DOCControl);
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
-		 virtadr, DOCControl);
+	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, virtadr, DOCControl);
+	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, virtadr, DOCControl);
 
 	/* Enable the DiskOnChip ASIC */
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
-		 virtadr, DOCControl);
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
-		 virtadr, DOCControl);
+	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, virtadr, DOCControl);
+	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, virtadr, DOCControl);
 
 	ChipID = ReadDOC(virtadr, ChipID);
 
-	switch(ChipID) {
+	switch (ChipID) {
 	case DOC_ChipID_Doc2k:
 		reg = DoC_2k_ECCStatus;
 		break;
@@ -1556,15 +1563,13 @@ static inline int __init doc_probe(unsigned long physadr)
 			ReadDOC(virtadr, Mplus_Power);
 
 		/* Reset the Millennium Plus ASIC */
-		tmp = DOC_MODE_RESET | DOC_MODE_MDWREN | DOC_MODE_RST_LAT |
-			DOC_MODE_BDECT;
+		tmp = DOC_MODE_RESET | DOC_MODE_MDWREN | DOC_MODE_RST_LAT | DOC_MODE_BDECT;
 		WriteDOC(tmp, virtadr, Mplus_DOCControl);
 		WriteDOC(~tmp, virtadr, Mplus_CtrlConfirm);
 
 		mdelay(1);
 		/* Enable the Millennium Plus ASIC */
-		tmp = DOC_MODE_NORMAL | DOC_MODE_MDWREN | DOC_MODE_RST_LAT |
-			DOC_MODE_BDECT;
+		tmp = DOC_MODE_NORMAL | DOC_MODE_MDWREN | DOC_MODE_RST_LAT | DOC_MODE_BDECT;
 		WriteDOC(tmp, virtadr, Mplus_DOCControl);
 		WriteDOC(~tmp, virtadr, Mplus_CtrlConfirm);
 		mdelay(1);
@@ -1588,7 +1593,7 @@ static inline int __init doc_probe(unsigned long physadr)
 		goto notfound;
 	}
 	/* Check the TOGGLE bit in the ECC register */
-	tmp  = ReadDOC_(virtadr, reg) & DOC_TOGGLE_BIT;
+	tmp = ReadDOC_(virtadr, reg) & DOC_TOGGLE_BIT;
 	tmpb = ReadDOC_(virtadr, reg) & DOC_TOGGLE_BIT;
 	tmpc = ReadDOC_(virtadr, reg) & DOC_TOGGLE_BIT;
 	if ((tmp == tmpb) || (tmp != tmpc)) {
@@ -1618,11 +1623,11 @@ static inline int __init doc_probe(unsigned long physadr)
 		if (ChipID == DOC_ChipID_DocMilPlus16) {
 			WriteDOC(~newval, virtadr, Mplus_AliasResolution);
 			oldval = ReadDOC(doc->virtadr, Mplus_AliasResolution);
-			WriteDOC(newval, virtadr, Mplus_AliasResolution); /* restore it */
+			WriteDOC(newval, virtadr, Mplus_AliasResolution);	// restore it
 		} else {
 			WriteDOC(~newval, virtadr, AliasResolution);
 			oldval = ReadDOC(doc->virtadr, AliasResolution);
-			WriteDOC(newval, virtadr, AliasResolution); /* restore it */
+			WriteDOC(newval, virtadr, AliasResolution);	// restore it
 		}
 		newval = ~newval;
 		if (oldval == newval) {
@@ -1634,16 +1639,13 @@ static inline int __init doc_probe(unsigned long physadr)
 	printk(KERN_NOTICE "DiskOnChip found at 0x%lx\n", physadr);
 
 	len = sizeof(struct mtd_info) +
-	      sizeof(struct nand_chip) +
-	      sizeof(struct doc_priv) +
-	      (2 * sizeof(struct nand_bbt_descr));
-	mtd =  kmalloc(len, GFP_KERNEL);
+	    sizeof(struct nand_chip) + sizeof(struct doc_priv) + (2 * sizeof(struct nand_bbt_descr));
+	mtd = kzalloc(len, GFP_KERNEL);
 	if (!mtd) {
 		printk(KERN_ERR "DiskOnChip kmalloc (%d bytes) failed!\n", len);
 		ret = -ENOMEM;
 		goto fail;
 	}
-	memset(mtd, 0, len);
 
 	nand			= (struct nand_chip *) (mtd + 1);
 	doc			= (struct doc_priv *) (nand + 1);
@@ -1655,17 +1657,19 @@ static inline int __init doc_probe(unsigned long physadr)
 
 	nand->priv		= doc;
 	nand->select_chip	= doc200x_select_chip;
-	nand->hwcontrol		= doc200x_hwcontrol;
+	nand->cmd_ctrl		= doc200x_hwcontrol;
 	nand->dev_ready		= doc200x_dev_ready;
 	nand->waitfunc		= doc200x_wait;
 	nand->block_bad		= doc200x_block_bad;
-	nand->enable_hwecc	= doc200x_enable_hwecc;
-	nand->calculate_ecc	= doc200x_calculate_ecc;
-	nand->correct_data	= doc200x_correct_data;
+	nand->ecc.hwctl		= doc200x_enable_hwecc;
+	nand->ecc.calculate	= doc200x_calculate_ecc;
+	nand->ecc.correct	= doc200x_correct_data;
 
-	nand->autooob		= &doc200x_oobinfo;
-	nand->eccmode		= NAND_ECC_HW6_512;
-	nand->options		= NAND_USE_FLASH_BBT | NAND_HWECC_SYNDROME;
+	nand->ecc.layout	= &doc200x_oobinfo;
+	nand->ecc.mode		= NAND_ECC_HW_SYNDROME;
+	nand->ecc.size		= 512;
+	nand->ecc.bytes		= 6;
+	nand->options		= NAND_USE_FLASH_BBT;
 
 	doc->physadr		= physadr;
 	doc->virtadr		= virtadr;
@@ -1699,11 +1703,11 @@ static inline int __init doc_probe(unsigned long physadr)
 	doclist = mtd;
 	return 0;
 
-notfound:
+ notfound:
 	/* Put back the contents of the DOCControl register, in case it's not
 	   actually a DiskOnChip.  */
 	WriteDOC(save_control, virtadr, DOCControl);
-fail:
+ fail:
 	iounmap(virtadr);
 	return ret;
 }
@@ -1740,7 +1744,7 @@ static int __init init_nanddoc(void)
 	 */
 	rs_decoder = init_rs(10, 0x409, FCR, 1, NROOTS);
 	if (!rs_decoder) {
-		printk (KERN_ERR "DiskOnChip: Could not create a RS decoder\n");
+		printk(KERN_ERR "DiskOnChip: Could not create a RS decoder\n");
 		return -ENOMEM;
 	}
 
@@ -1750,7 +1754,7 @@ static int __init init_nanddoc(void)
 		if (ret < 0)
 			goto outerr;
 	} else {
-		for (i=0; (doc_locations[i] != 0xffffffff); i++) {
+		for (i = 0; (doc_locations[i] != 0xffffffff); i++) {
 			doc_probe(doc_locations[i]);
 		}
 	}
@@ -1762,7 +1766,7 @@ static int __init init_nanddoc(void)
 		goto outerr;
 	}
 	return 0;
-outerr:
+ outerr:
 	free_rs(rs_decoder);
 	return ret;
 }
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 6416d15..aeb1797 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -10,39 +10,21 @@
  *	http://www.linux-mtd.infradead.org/tech/nand.html
  *
  *  Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
- *		  2002 Thomas Gleixner (tglx@linutronix.de)
+ *		  2002-2006 Thomas Gleixner (tglx@linutronix.de)
  *
- *  02-08-2004  tglx: support for strange chips, which cannot auto increment
- *		pages on read / read_oob
- *
- *  03-17-2004  tglx: Check ready before auto increment check. Simon Bayes
- *		pointed this out, as he marked an auto increment capable chip
- *		as NOAUTOINCR in the board driver.
- *		Make reads over block boundaries work too
- *
- *  04-14-2004	tglx: first working version for 2k page size chips
- *
- *  05-19-2004  tglx: Basic support for Renesas AG-AND chips
- *
- *  09-24-2004  tglx: add support for hardware controllers (e.g. ECC) shared
- *		among multiple independend devices. Suggestions and initial patch
- *		from Ben Dooks <ben-mtd@fluff.org>
- *
- * Credits:
+ *  Credits:
  *	David Woodhouse for adding multichip support
  *
  *	Aleph One Ltd. and Toby Churchill Ltd. for supporting the
  *	rework for 2K page size chips
  *
- * TODO:
+ *  TODO:
  *	Enable cached programming for 2k page size chips
  *	Check, if mtd->ecctype should be set to MTD_ECC_HW
  *	if we have HW ecc support.
  *	The AG-AND chips have nice features for speed improvement,
  *	which are not supported yet. Read / program 4 pages in one go.
  *
- * $Id: nand_base.c,v 1.126 2004/12/13 11:22:25 lavinen Exp $
- *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
@@ -51,8 +33,10 @@
 
 /* XXX U-BOOT XXX */
 #if 0
+#include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
+#include <linux/err.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -62,6 +46,7 @@
 #include <linux/mtd/compatmac.h>
 #include <linux/interrupt.h>
 #include <linux/bitops.h>
+#include <linux/leds.h>
 #include <asm/io.h>
 
 #ifdef CONFIG_MTD_PARTITIONS
@@ -72,10 +57,13 @@
 
 #include <common.h>
 
+#define ENOTSUPP	524	/* Operation is not supported */
+
 #if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
 
 #include <malloc.h>
 #include <watchdog.h>
+#include <linux/err.h>
 #include <linux/mtd/compat.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
@@ -89,83 +77,67 @@
 #endif
 
 /* Define default oob placement schemes for large and small page devices */
-static struct nand_oobinfo nand_oob_8 = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
+static struct nand_ecclayout nand_oob_8 = {
 	.eccbytes = 3,
 	.eccpos = {0, 1, 2},
-	.oobfree = { {3, 2}, {6, 2} }
+	.oobfree = {
+		{.offset = 3,
+		 .length = 2},
+		{.offset = 6,
+		 .length = 2}}
 };
 
-static struct nand_oobinfo nand_oob_16 = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
+static struct nand_ecclayout nand_oob_16 = {
 	.eccbytes = 6,
 	.eccpos = {0, 1, 2, 3, 6, 7},
-	.oobfree = { {8, 8} }
+	.oobfree = {
+		{.offset = 8,
+		 . length = 8}}
 };
 
-static struct nand_oobinfo nand_oob_64 = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
+static struct nand_ecclayout nand_oob_64 = {
 	.eccbytes = 24,
 	.eccpos = {
-		40, 41, 42, 43, 44, 45, 46, 47,
-		48, 49, 50, 51, 52, 53, 54, 55,
-		56, 57, 58, 59, 60, 61, 62, 63},
-	.oobfree = { {2, 38} }
+		   40, 41, 42, 43, 44, 45, 46, 47,
+		   48, 49, 50, 51, 52, 53, 54, 55,
+		   56, 57, 58, 59, 60, 61, 62, 63},
+	.oobfree = {
+		{.offset = 2,
+		 .length = 38}}
 };
 
-static struct nand_oobinfo nand_oob_128 = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
+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 = { {2, 78} }
+		    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}}
 };
 
-/* This is used for padding purposes in nand_write_oob */
-static u_char *ffchars;
+
+static int nand_get_device(struct nand_chip *chip, struct mtd_info *mtd,
+			   int new_state);
+
+static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
+			     struct mtd_oob_ops *ops);
+
+static int nand_wait(struct mtd_info *mtd, struct nand_chip *this);
 
 /*
- * NAND low-level MTD interface functions
+ * For devices which display every fart in the system on a seperate LED. Is
+ * compiled away when LED support is disabled.
  */
-static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
-static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
-static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len);
-
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
-static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
-			  size_t * retlen, u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
-static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf);
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
-			   size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char *buf);
 /* XXX U-BOOT XXX */
 #if 0
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
-			unsigned long count, loff_t to, size_t * retlen);
-static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs,
-			unsigned long count, loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
-#endif
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr);
-static void nand_sync (struct mtd_info *mtd);
-
-/* Some internal functions */
-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf,
-		struct nand_oobinfo *oobsel, int mode);
-#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
-static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
-	u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode);
-#else
-#define nand_verify_pages(...) (0)
+DEFINE_LED_TRIGGER(nand_led_trigger);
 #endif
 
-static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state);
-
 /**
  * nand_release_device - [GENERIC] release chip
  * @mtd:	MTD device structure
@@ -174,33 +146,25 @@ static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int n
  */
 /* XXX U-BOOT XXX */
 #if 0
-static void nand_release_device (struct mtd_info *mtd)
+static void nand_release_device(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
 	/* De-select the NAND device */
-	this->select_chip(mtd, -1);
-	/* Do we have a hardware controller ? */
-	if (this->controller) {
-		spin_lock(&this->controller->lock);
-		this->controller->active = NULL;
-		spin_unlock(&this->controller->lock);
-	}
-	/* Release the chip */
-	spin_lock (&this->chip_lock);
-	this->state = FL_READY;
-	wake_up (&this->wq);
-	spin_unlock (&this->chip_lock);
+	chip->select_chip(mtd, -1);
+
+	/* Release the controller and the chip */
+	spin_lock(&chip->controller->lock);
+	chip->controller->active = NULL;
+	chip->state = FL_READY;
+	wake_up(&chip->controller->wq);
+	spin_unlock(&chip->controller->lock);
 }
 #else
 static void nand_release_device (struct mtd_info *mtd)
 {
 	struct nand_chip *this = mtd->priv;
 	this->select_chip(mtd, -1);	/* De-select the NAND device */
-	if (ffchars) {
-		kfree(ffchars);
-		ffchars = NULL;
-	}
 }
 #endif
 
@@ -210,23 +174,10 @@ static void nand_release_device (struct mtd_info *mtd)
  *
  * Default read function for 8bit buswith
  */
-static u_char nand_read_byte(struct mtd_info *mtd)
+static uint8_t nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	return readb(this->IO_ADDR_R);
-}
-
-/**
- * nand_write_byte - [DEFAULT] write one byte to the chip
- * @mtd:	MTD device structure
- * @byte:	pointer to data byte to write
- *
- * Default write function for 8it buswith
- */
-static void nand_write_byte(struct mtd_info *mtd, u_char byte)
-{
-	struct nand_chip *this = mtd->priv;
-	writeb(byte, this->IO_ADDR_W);
+	struct nand_chip *chip = mtd->priv;
+	return readb(chip->IO_ADDR_R);
 }
 
 /**
@@ -236,24 +187,10 @@ static void nand_write_byte(struct mtd_info *mtd, u_char byte)
  * Default read function for 16bit buswith with
  * endianess conversion
  */
-static u_char nand_read_byte16(struct mtd_info *mtd)
+static uint8_t nand_read_byte16(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	return (u_char) cpu_to_le16(readw(this->IO_ADDR_R));
-}
-
-/**
- * nand_write_byte16 - [DEFAULT] write one byte endianess aware to the chip
- * @mtd:	MTD device structure
- * @byte:	pointer to data byte to write
- *
- * Default write function for 16bit buswith with
- * endianess conversion
- */
-static void nand_write_byte16(struct mtd_info *mtd, u_char byte)
-{
-	struct nand_chip *this = mtd->priv;
-	writew(le16_to_cpu((u16) byte), this->IO_ADDR_W);
+	struct nand_chip *chip = mtd->priv;
+	return (uint8_t) cpu_to_le16(readw(chip->IO_ADDR_R));
 }
 
 /**
@@ -265,40 +202,26 @@ static void nand_write_byte16(struct mtd_info *mtd, u_char byte)
  */
 static u16 nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	return readw(this->IO_ADDR_R);
-}
-
-/**
- * nand_write_word - [DEFAULT] write one word to the chip
- * @mtd:	MTD device structure
- * @word:	data word to write
- *
- * Default write function for 16bit buswith without
- * endianess conversion
- */
-static void nand_write_word(struct mtd_info *mtd, u16 word)
-{
-	struct nand_chip *this = mtd->priv;
-	writew(word, this->IO_ADDR_W);
+	struct nand_chip *chip = mtd->priv;
+	return readw(chip->IO_ADDR_R);
 }
 
 /**
  * nand_select_chip - [DEFAULT] control CE line
  * @mtd:	MTD device structure
- * @chip:	chipnumber to select, -1 for deselect
+ * @chipnr:	chipnumber to select, -1 for deselect
  *
  * Default select function for 1 chip devices.
  */
-static void nand_select_chip(struct mtd_info *mtd, int chip)
+static void nand_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *this = mtd->priv;
-	switch(chip) {
+	struct nand_chip *chip = mtd->priv;
+
+	switch (chipnr) {
 	case -1:
-		this->hwcontrol(mtd, NAND_CTL_CLRNCE);
+		chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE);
 		break;
 	case 0:
-		this->hwcontrol(mtd, NAND_CTL_SETNCE);
 		break;
 
 	default:
@@ -314,13 +237,13 @@ static void nand_select_chip(struct mtd_info *mtd, int chip)
  *
  * Default write function for 8bit buswith
  */
-static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
+static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
-	for (i=0; i<len; i++)
-		writeb(buf[i], this->IO_ADDR_W);
+	for (i = 0; i < len; i++)
+		writeb(buf[i], chip->IO_ADDR_W);
 }
 
 /**
@@ -331,13 +254,13 @@ static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
  *
  * Default read function for 8bit buswith
  */
-static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
+static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
-	for (i=0; i<len; i++)
-		buf[i] = readb(this->IO_ADDR_R);
+	for (i = 0; i < len; i++)
+		buf[i] = readb(chip->IO_ADDR_R);
 }
 
 /**
@@ -348,15 +271,14 @@ static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
  *
  * Default verify function for 8bit buswith
  */
-static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
+static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
-	for (i=0; i<len; i++)
-		if (buf[i] != readb(this->IO_ADDR_R))
+	for (i = 0; i < len; i++)
+		if (buf[i] != readb(chip->IO_ADDR_R))
 			return -EFAULT;
-
 	return 0;
 }
 
@@ -368,15 +290,15 @@ static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
  *
  * Default write function for 16bit buswith
  */
-static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
+static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	u16 *p = (u16 *) buf;
 	len >>= 1;
 
-	for (i=0; i<len; i++)
-		writew(p[i], this->IO_ADDR_W);
+	for (i = 0; i < len; i++)
+		writew(p[i], chip->IO_ADDR_W);
 
 }
 
@@ -388,15 +310,15 @@ static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
  *
  * Default read function for 16bit buswith
  */
-static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
+static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	u16 *p = (u16 *) buf;
 	len >>= 1;
 
-	for (i=0; i<len; i++)
-		p[i] = readw(this->IO_ADDR_R);
+	for (i = 0; i < len; i++)
+		p[i] = readw(chip->IO_ADDR_R);
 }
 
 /**
@@ -407,15 +329,15 @@ static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
  *
  * Default verify function for 16bit buswith
  */
-static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
+static int nand_verify_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	u16 *p = (u16 *) buf;
 	len >>= 1;
 
-	for (i=0; i<len; i++)
-		if (p[i] != readw(this->IO_ADDR_R))
+	for (i = 0; i < len; i++)
+		if (p[i] != readw(chip->IO_ADDR_R))
 			return -EFAULT;
 
 	return 0;
@@ -432,38 +354,36 @@ static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
 static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
 {
 	int page, chipnr, res = 0;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	u16 bad;
 
-	page = (int)(ofs >> this->page_shift) & this->pagemask;
+	page = (int)(ofs >> chip->page_shift) & chip->pagemask;
 
 	if (getchip) {
-		chipnr = (int)(ofs >> this->chip_shift);
+		chipnr = (int)(ofs >> chip->chip_shift);
 
-		/* Grab the lock and see if the device is available */
-		nand_get_device (this, mtd, FL_READING);
+		nand_get_device(chip, mtd, FL_READING);
 
 		/* Select the NAND device */
-		this->select_chip(mtd, chipnr);
+		chip->select_chip(mtd, chipnr);
 	}
 
-	if (this->options & NAND_BUSWIDTH_16) {
-		this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page);
-		bad = cpu_to_le16(this->read_word(mtd));
-		if (this->badblockpos & 0x1)
-			bad >>= 1;
+	if (chip->options & NAND_BUSWIDTH_16) {
+		chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos & 0xFE,
+			      page);
+		bad = cpu_to_le16(chip->read_word(mtd));
+		if (chip->badblockpos & 0x1)
+			bad >>= 8;
 		if ((bad & 0xFF) != 0xff)
 			res = 1;
 	} else {
-		this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos, page);
-		if (this->read_byte(mtd) != 0xff)
+		chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos, page);
+		if (chip->read_byte(mtd) != 0xff)
 			res = 1;
 	}
 
-	if (getchip) {
-		/* Deselect and wake up anyone waiting on the device */
+	if (getchip)
 		nand_release_device(mtd);
-	}
 
 	return res;
 }
@@ -478,22 +398,33 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
 */
 static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *this = mtd->priv;
-	u_char buf[2] = {0, 0};
-	size_t	retlen;
-	int block;
+	struct nand_chip *chip = mtd->priv;
+	uint8_t buf[2] = { 0, 0 };
+	int block, ret;
 
 	/* Get block number */
-	block = ((int) ofs) >> this->bbt_erase_shift;
-	this->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
+	block = (int)(ofs >> chip->bbt_erase_shift);
+	if (chip->bbt)
+		chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
 
 	/* Do we have a flash based bad block table ? */
-	if (this->options & NAND_USE_FLASH_BBT)
-		return nand_update_bbt (mtd, ofs);
+	if (chip->options & NAND_USE_FLASH_BBT)
+		ret = nand_update_bbt(mtd, ofs);
+	else {
+		/* We write two bytes, so we dont have to mess with 16 bit
+		 * access
+		 */
+		ofs += mtd->oobsize;
+		chip->ops.len = chip->ops.ooblen = 2;
+		chip->ops.datbuf = NULL;
+		chip->ops.oobbuf = buf;
+		chip->ops.ooboffs = chip->badblockpos & ~0x01;
 
-	/* We write two bytes, so we dont have to mess with 16 bit access */
-	ofs += mtd->oobsize + (this->badblockpos & ~0x01);
-	return nand_write_oob (mtd, ofs , 2, &retlen, buf);
+		ret = nand_do_write_oob(mtd, ofs, &chip->ops);
+	}
+	if (!ret)
+		mtd->ecc_stats.badblocks++;
+	return ret;
 }
 
 /**
@@ -503,12 +434,12 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
  *
  * The function expects, that the device is already selected
  */
-static int nand_check_wp (struct mtd_info *mtd)
+static int nand_check_wp(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	/* Check the WP bit */
-	this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
-	return (this->read_byte(mtd) & 0x80) ? 0 : 1;
+	chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
+	return (chip->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1;
 }
 
 /**
@@ -521,16 +452,46 @@ static int nand_check_wp (struct mtd_info *mtd)
  * Check, if the block is bad. Either by reading the bad block table or
  * calling of the scan function.
  */
-static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt)
+static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip,
+			       int allowbbt)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
-	if (!this->bbt)
-		return this->block_bad(mtd, ofs, getchip);
+	if (!chip->bbt)
+		return chip->block_bad(mtd, ofs, getchip);
 
 	/* Return info from the table */
-	return nand_isbad_bbt (mtd, ofs, allowbbt);
+	return nand_isbad_bbt(mtd, ofs, allowbbt);
+}
+
+/*
+ * Wait for the ready pin, after a command
+ * The timeout is catched later.
+ */
+/* XXX U-BOOT XXX */
+#if 0
+void nand_wait_ready(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = mtd->priv;
+	unsigned long timeo = jiffies + 2;
+
+	led_trigger_event(nand_led_trigger, LED_FULL);
+	/* wait until command is processed or timeout occures */
+	do {
+		if (chip->dev_ready(mtd))
+			break;
+		touch_softlockup_watchdog();
+	} while (time_before(jiffies, timeo));
+	led_trigger_event(nand_led_trigger, LED_OFF);
 }
+EXPORT_SYMBOL_GPL(nand_wait_ready);
+#else
+void nand_wait_ready(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = mtd->priv;
+	nand_wait(mtd, chip);
+}
+#endif
 
 /**
  * nand_command - [DEFAULT] Send command to NAND device
@@ -542,21 +503,21 @@ static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, i
  * Send command to NAND device. This function is used for small page
  * devices (256/512 Bytes per page)
  */
-static void nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
+static void nand_command(struct mtd_info *mtd, unsigned int command,
+			 int column, int page_addr)
 {
-	register struct nand_chip *this = mtd->priv;
+	register struct nand_chip *chip = mtd->priv;
+	int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE;
 
-	/* Begin command latch cycle */
-	this->hwcontrol(mtd, NAND_CTL_SETCLE);
 	/*
 	 * Write out the command to the device.
 	 */
 	if (command == NAND_CMD_SEQIN) {
 		int readcmd;
 
-		if (column >= mtd->oobblock) {
+		if (column >= mtd->writesize) {
 			/* OOB area */
-			column -= mtd->oobblock;
+			column -= mtd->writesize;
 			readcmd = NAND_CMD_READOOB;
 		} else if (column < 256) {
 			/* First 256 bytes --> READ0 */
@@ -565,38 +526,37 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
 			column -= 256;
 			readcmd = NAND_CMD_READ1;
 		}
-		this->write_byte(mtd, readcmd);
+		chip->cmd_ctrl(mtd, readcmd, ctrl);
+		ctrl &= ~NAND_CTRL_CHANGE;
 	}
-	this->write_byte(mtd, command);
-
-	/* Set ALE and clear CLE to start address cycle */
-	this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-
-	if (column != -1 || page_addr != -1) {
-		this->hwcontrol(mtd, NAND_CTL_SETALE);
+	chip->cmd_ctrl(mtd, command, ctrl);
 
-		/* Serially input address */
-		if (column != -1) {
-			/* Adjust columns for 16 bit buswidth */
-			if (this->options & NAND_BUSWIDTH_16)
-				column >>= 1;
-			this->write_byte(mtd, column);
-		}
-		if (page_addr != -1) {
-			this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
-			this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
-			/* One more address cycle for devices > 32MiB */
-			if (this->chipsize > (32 << 20))
-				this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
-		}
-		/* Latch in address */
-		this->hwcontrol(mtd, NAND_CTL_CLRALE);
+	/*
+	 * Address cycle, when necessary
+	 */
+	ctrl = NAND_CTRL_ALE | NAND_CTRL_CHANGE;
+	/* Serially input address */
+	if (column != -1) {
+		/* Adjust columns for 16 bit buswidth */
+		if (chip->options & NAND_BUSWIDTH_16)
+			column >>= 1;
+		chip->cmd_ctrl(mtd, column, ctrl);
+		ctrl &= ~NAND_CTRL_CHANGE;
 	}
+	if (page_addr != -1) {
+		chip->cmd_ctrl(mtd, page_addr, ctrl);
+		ctrl &= ~NAND_CTRL_CHANGE;
+		chip->cmd_ctrl(mtd, page_addr >> 8, ctrl);
+		/* One more address cycle for devices > 32MiB */
+		if (chip->chipsize > (32 << 20))
+			chip->cmd_ctrl(mtd, page_addr >> 16, ctrl);
+	}
+	chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
 	/*
 	 * program and erase have their own busy handlers
 	 * status and sequential in needs no delay
-	*/
+	 */
 	switch (command) {
 
 	case NAND_CMD_PAGEPROG:
@@ -607,32 +567,32 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
 		return;
 
 	case NAND_CMD_RESET:
-		if (this->dev_ready)
+		if (chip->dev_ready)
 			break;
-		udelay(this->chip_delay);
-		this->hwcontrol(mtd, NAND_CTL_SETCLE);
-		this->write_byte(mtd, NAND_CMD_STATUS);
-		this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-		while ( !(this->read_byte(mtd) & 0x40));
+		udelay(chip->chip_delay);
+		chip->cmd_ctrl(mtd, NAND_CMD_STATUS,
+			       NAND_CTRL_CLE | NAND_CTRL_CHANGE);
+		chip->cmd_ctrl(mtd,
+			       NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
+		while (!(chip->read_byte(mtd) & NAND_STATUS_READY)) ;
 		return;
 
-	/* This applies to read commands */
+		/* This applies to read commands */
 	default:
 		/*
 		 * If we don't have access to the busy pin, we apply the given
 		 * command delay
-		*/
-		if (!this->dev_ready) {
-			udelay (this->chip_delay);
+		 */
+		if (!chip->dev_ready) {
+			udelay(chip->chip_delay);
 			return;
 		}
 	}
-
 	/* Apply this short delay always to ensure that we do wait tWB in
 	 * any case on any machine. */
-	ndelay (100);
-	/* wait until command is processed */
-	while (!this->dev_ready(mtd));
+	ndelay(100);
+
+	nand_wait_ready(mtd);
 }
 
 /**
@@ -642,55 +602,53 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
  * @column:	the column address for this command, -1 if none
  * @page_addr:	the page address for this command, -1 if none
  *
- * Send command to NAND device. This is the version for the new large page devices
- * We dont have the seperate regions as we have in the small page devices.
- * We must emulate NAND_CMD_READOOB to keep the code compatible.
- *
+ * Send command to NAND device. This is the version for the new large page
+ * devices We dont have the separate regions as we have in the small page
+ * devices.  We must emulate NAND_CMD_READOOB to keep the code compatible.
  */
-static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, int page_addr)
+static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
+			    int column, int page_addr)
 {
-	register struct nand_chip *this = mtd->priv;
+	register struct nand_chip *chip = mtd->priv;
 
 	/* Emulate NAND_CMD_READOOB */
 	if (command == NAND_CMD_READOOB) {
-		column += mtd->oobblock;
+		column += mtd->writesize;
 		command = NAND_CMD_READ0;
 	}
 
-
-	/* Begin command latch cycle */
-	this->hwcontrol(mtd, NAND_CTL_SETCLE);
-	/* Write out the command to the device. */
-	this->write_byte(mtd, command);
-	/* End command latch cycle */
-	this->hwcontrol(mtd, NAND_CTL_CLRCLE);
+	/* Command latch cycle */
+	chip->cmd_ctrl(mtd, command & 0xff,
+		       NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
 
 	if (column != -1 || page_addr != -1) {
-		this->hwcontrol(mtd, NAND_CTL_SETALE);
+		int ctrl = NAND_CTRL_CHANGE | NAND_NCE | NAND_ALE;
 
 		/* Serially input address */
 		if (column != -1) {
 			/* Adjust columns for 16 bit buswidth */
-			if (this->options & NAND_BUSWIDTH_16)
+			if (chip->options & NAND_BUSWIDTH_16)
 				column >>= 1;
-			this->write_byte(mtd, column & 0xff);
-			this->write_byte(mtd, column >> 8);
+			chip->cmd_ctrl(mtd, column, ctrl);
+			ctrl &= ~NAND_CTRL_CHANGE;
+			chip->cmd_ctrl(mtd, column >> 8, ctrl);
 		}
 		if (page_addr != -1) {
-			this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
-			this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
+			chip->cmd_ctrl(mtd, page_addr, ctrl);
+			chip->cmd_ctrl(mtd, page_addr >> 8,
+				       NAND_NCE | NAND_ALE);
 			/* One more address cycle for devices > 128MiB */
-			if (this->chipsize > (128 << 20))
-				this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0xff));
+			if (chip->chipsize > (128 << 20))
+				chip->cmd_ctrl(mtd, page_addr >> 16,
+					       NAND_NCE | NAND_ALE);
 		}
-		/* Latch in address */
-		this->hwcontrol(mtd, NAND_CTL_CLRALE);
 	}
+	chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
 	/*
 	 * program and erase have their own busy handlers
-	 * status and sequential in needs no delay
-	*/
+	 * status, sequential in, and deplete1 need no delay
+	 */
 	switch (command) {
 
 	case NAND_CMD_CACHEDPROG:
@@ -698,51 +656,69 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
 	case NAND_CMD_ERASE1:
 	case NAND_CMD_ERASE2:
 	case NAND_CMD_SEQIN:
+	case NAND_CMD_RNDIN:
 	case NAND_CMD_STATUS:
+	case NAND_CMD_DEPLETE1:
 		return;
 
+		/*
+		 * read error status commands require only a short delay
+		 */
+	case NAND_CMD_STATUS_ERROR:
+	case NAND_CMD_STATUS_ERROR0:
+	case NAND_CMD_STATUS_ERROR1:
+	case NAND_CMD_STATUS_ERROR2:
+	case NAND_CMD_STATUS_ERROR3:
+		udelay(chip->chip_delay);
+		return;
 
 	case NAND_CMD_RESET:
-		if (this->dev_ready)
+		if (chip->dev_ready)
 			break;
-		udelay(this->chip_delay);
-		this->hwcontrol(mtd, NAND_CTL_SETCLE);
-		this->write_byte(mtd, NAND_CMD_STATUS);
-		this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-		while ( !(this->read_byte(mtd) & 0x40));
+		udelay(chip->chip_delay);
+		chip->cmd_ctrl(mtd, NAND_CMD_STATUS,
+			       NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
+		chip->cmd_ctrl(mtd, NAND_CMD_NONE,
+			       NAND_NCE | NAND_CTRL_CHANGE);
+		while (!(chip->read_byte(mtd) & NAND_STATUS_READY)) ;
+		return;
+
+	case NAND_CMD_RNDOUT:
+		/* No ready / busy check necessary */
+		chip->cmd_ctrl(mtd, NAND_CMD_RNDOUTSTART,
+			       NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
+		chip->cmd_ctrl(mtd, NAND_CMD_NONE,
+			       NAND_NCE | NAND_CTRL_CHANGE);
 		return;
 
 	case NAND_CMD_READ0:
-		/* Begin command latch cycle */
-		this->hwcontrol(mtd, NAND_CTL_SETCLE);
-		/* Write out the start read command */
-		this->write_byte(mtd, NAND_CMD_READSTART);
-		/* End command latch cycle */
-		this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-		/* Fall through into ready check */
-
-	/* This applies to read commands */
+		chip->cmd_ctrl(mtd, NAND_CMD_READSTART,
+			       NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
+		chip->cmd_ctrl(mtd, NAND_CMD_NONE,
+			       NAND_NCE | NAND_CTRL_CHANGE);
+
+		/* This applies to read commands */
 	default:
 		/*
 		 * If we don't have access to the busy pin, we apply the given
 		 * command delay
-		*/
-		if (!this->dev_ready) {
-			udelay (this->chip_delay);
+		 */
+		if (!chip->dev_ready) {
+			udelay(chip->chip_delay);
 			return;
 		}
 	}
 
 	/* Apply this short delay always to ensure that we do wait tWB in
 	 * any case on any machine. */
-	ndelay (100);
-	/* wait until command is processed */
-	while (!this->dev_ready(mtd));
+	ndelay(100);
+
+	nand_wait_ready(mtd);
 }
 
 /**
  * nand_get_device - [GENERIC] Get chip for selected access
- * @this:	the nand chip descriptor
+ * @chip:	the nand chip descriptor
  * @mtd:	MTD device structure
  * @new_state:	the state which is requested
  *
@@ -750,100 +726,96 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
  */
 /* XXX U-BOOT XXX */
 #if 0
-static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state)
+static int
+nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, int new_state)
 {
-	struct nand_chip *active = this;
-
-	DECLARE_WAITQUEUE (wait, current);
+	spinlock_t *lock = &chip->controller->lock;
+	wait_queue_head_t *wq = &chip->controller->wq;
+	DECLARE_WAITQUEUE(wait, current);
+ retry:
+	spin_lock(lock);
 
-	/*
-	 * Grab the lock and see if the device is available
-	*/
-retry:
 	/* Hardware controller shared among independend devices */
-	if (this->controller) {
-		spin_lock (&this->controller->lock);
-		if (this->controller->active)
-			active = this->controller->active;
-		else
-			this->controller->active = this;
-		spin_unlock (&this->controller->lock);
-	}
+	/* Hardware controller shared among independend devices */
+	if (!chip->controller->active)
+		chip->controller->active = chip;
 
-	if (active == this) {
-		spin_lock (&this->chip_lock);
-		if (this->state == FL_READY) {
-			this->state = new_state;
-			spin_unlock (&this->chip_lock);
-			return;
-		}
+	if (chip->controller->active == chip && chip->state == FL_READY) {
+		chip->state = new_state;
+		spin_unlock(lock);
+		return 0;
+	}
+	if (new_state == FL_PM_SUSPENDED) {
+		spin_unlock(lock);
+		return (chip->state == FL_PM_SUSPENDED) ? 0 : -EAGAIN;
 	}
-	set_current_state (TASK_UNINTERRUPTIBLE);
-	add_wait_queue (&active->wq, &wait);
-	spin_unlock (&active->chip_lock);
-	schedule ();
-	remove_wait_queue (&active->wq, &wait);
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	add_wait_queue(wq, &wait);
+	spin_unlock(lock);
+	schedule();
+	remove_wait_queue(wq, &wait);
 	goto retry;
 }
 #else
-static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state) {}
+static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state)
+{
+	return 0;
+}
 #endif
 
 /**
  * nand_wait - [DEFAULT]  wait until the command is done
  * @mtd:	MTD device structure
- * @this:	NAND chip structure
- * @state:	state to select the max. timeout value
+ * @chip:	NAND chip structure
  *
  * Wait for command done. This applies to erase and program only
  * Erase can take up to 400ms and program up to 20ms according to
  * general NAND and SmartMedia specs
- *
-*/
+ */
 /* XXX U-BOOT XXX */
 #if 0
-static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
+static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	unsigned long	timeo = jiffies;
-	int	status;
+
+	unsigned long timeo = jiffies;
+	int status, state = chip->state;
 
 	if (state == FL_ERASING)
-		 timeo += (HZ * 400) / 1000;
+		timeo += (HZ * 400) / 1000;
 	else
-		 timeo += (HZ * 20) / 1000;
+		timeo += (HZ * 20) / 1000;
+
+	led_trigger_event(nand_led_trigger, LED_FULL);
 
 	/* Apply this short delay always to ensure that we do wait tWB in
 	 * any case on any machine. */
-	ndelay (100);
+	ndelay(100);
 
-	if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
-		this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1);
+	if ((state == FL_ERASING) && (chip->options & NAND_IS_AND))
+		chip->cmdfunc(mtd, NAND_CMD_STATUS_MULTI, -1, -1);
 	else
-		this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
+		chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
 
 	while (time_before(jiffies, timeo)) {
-		/* Check, if we were interrupted */
-		if (this->state != state)
-			return 0;
-
-		if (this->dev_ready) {
-			if (this->dev_ready(mtd))
+		if (chip->dev_ready) {
+			if (chip->dev_ready(mtd))
 				break;
 		} else {
-			if (this->read_byte(mtd) & NAND_STATUS_READY)
+			if (chip->read_byte(mtd) & NAND_STATUS_READY)
 				break;
 		}
-		yield ();
+		cond_resched();
 	}
-	status = (int) this->read_byte(mtd);
-	return status;
+	led_trigger_event(nand_led_trigger, LED_OFF);
 
-	return 0;
+	status = (int)chip->read_byte(mtd);
+	return status;
 }
 #else
-static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
+static int nand_wait(struct mtd_info *mtd, struct nand_chip *this)
 {
 	unsigned long	timeo;
+	int state = this->state;
 
 	if (state == FL_ERASING)
 		timeo = (CFG_HZ * 400) / 1000;
@@ -881,478 +853,305 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
 #endif
 
 /**
- * nand_write_page - [GENERIC] write one page
- * @mtd:	MTD device structure
- * @this:	NAND chip structure
- * @page:	startpage inside the chip, must be called with (page & this->pagemask)
- * @oob_buf:	out of band data buffer
- * @oobsel:	out of band selecttion structre
- * @cached:	1 = enable cached programming if supported by chip
- *
- * Nand_page_program function is used for write and writev !
- * This function will always program a full page of data
- * If you call it with a non page aligned buffer, you're lost :)
- *
- * Cached programming is not supported yet.
+ * nand_read_page_raw - [Intern] read raw page data without ecc
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	buffer to store read data
  */
-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page,
-	u_char *oob_buf,  struct nand_oobinfo *oobsel, int cached)
+static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+			      uint8_t *buf)
 {
-	int	i, status;
-	u_char	ecc_code[NAND_MAX_OOBSIZE];
-	int	eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
-	uint	*oob_config = oobsel->eccpos;
-	int	datidx = 0, eccidx = 0, eccsteps = this->eccsteps;
-	int	eccbytes = 0;
+	chip->read_buf(mtd, buf, mtd->writesize);
+	chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+	return 0;
+}
 
-	/* FIXME: Enable cached programming */
-	cached = 0;
+/**
+ * nand_read_page_swecc - [REPLACABLE] software ecc based page read function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	buffer to store read data
+ */
+static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
+				uint8_t *buf)
+{
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	uint8_t *p = buf;
+	uint8_t *ecc_calc = chip->buffers->ecccalc;
+	uint8_t *ecc_code = chip->buffers->ecccode;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
 
-	/* Send command to begin auto page programming */
-	this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page);
+	chip->ecc.read_page_raw(mtd, chip, buf);
 
-	/* Write out complete page of data, take care of eccmode */
-	switch (eccmode) {
-	/* No ecc, write all */
-	case NAND_ECC_NONE:
-		printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n");
-		this->write_buf(mtd, this->data_poi, mtd->oobblock);
-		break;
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
+		chip->ecc.calculate(mtd, p, &ecc_calc[i]);
 
-	/* Software ecc 3/256, write all */
-	case NAND_ECC_SOFT:
-		for (; eccsteps; eccsteps--) {
-			this->calculate_ecc(mtd, &this->data_poi[datidx], ecc_code);
-			for (i = 0; i < 3; i++, eccidx++)
-				oob_buf[oob_config[eccidx]] = ecc_code[i];
-			datidx += this->eccsize;
-		}
-		this->write_buf(mtd, this->data_poi, mtd->oobblock);
-		break;
-	default:
-		eccbytes = this->eccbytes;
-		for (; eccsteps; eccsteps--) {
-			/* enable hardware ecc logic for write */
-			this->enable_hwecc(mtd, NAND_ECC_WRITE);
-			this->write_buf(mtd, &this->data_poi[datidx], this->eccsize);
-			this->calculate_ecc(mtd, &this->data_poi[datidx], ecc_code);
-			for (i = 0; i < eccbytes; i++, eccidx++)
-				oob_buf[oob_config[eccidx]] = ecc_code[i];
-			/* If the hardware ecc provides syndromes then
-			 * the ecc code must be written immediately after
-			 * the data bytes (words) */
-			if (this->options & NAND_HWECC_SYNDROME)
-				this->write_buf(mtd, ecc_code, eccbytes);
-			datidx += this->eccsize;
-		}
-		break;
-	}
+	for (i = 0; i < chip->ecc.total; i++)
+		ecc_code[i] = chip->oob_poi[eccpos[i]];
 
-	/* Write out OOB data */
-	if (this->options & NAND_HWECC_SYNDROME)
-		this->write_buf(mtd, &oob_buf[oobsel->eccbytes], mtd->oobsize - oobsel->eccbytes);
-	else
-		this->write_buf(mtd, oob_buf, mtd->oobsize);
-
-	/* Send command to actually program the data */
-	this->cmdfunc (mtd, cached ? NAND_CMD_CACHEDPROG : NAND_CMD_PAGEPROG, -1, -1);
-
-	if (!cached) {
-		/* call wait ready function */
-		status = this->waitfunc (mtd, this, FL_WRITING);
-		/* See if device thinks it succeeded */
-		if (status & 0x01) {
-			MTDDEBUG (MTD_DEBUG_LEVEL0,
-			          "%s: Failed write, page 0x%08x, ",
-			          __FUNCTION__, page);
-			return -EIO;
-		}
-	} else {
-		/* FIXME: Implement cached programming ! */
-		/* wait until cache is ready*/
-		/* status = this->waitfunc (mtd, this, FL_CACHEDRPG); */
+	eccsteps = chip->ecc.steps;
+	p = buf;
+
+	for (i = 0 ; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		int stat;
+
+		stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
+		if (stat == -1)
+			mtd->ecc_stats.failed++;
+		else
+			mtd->ecc_stats.corrected += stat;
 	}
 	return 0;
 }
 
-#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
 /**
- * nand_verify_pages - [GENERIC] verify the chip contents after a write
- * @mtd:	MTD device structure
- * @this:	NAND chip structure
- * @page:	startpage inside the chip, must be called with (page & this->pagemask)
- * @numpages:	number of pages to verify
- * @oob_buf:	out of band data buffer
- * @oobsel:	out of band selecttion structre
- * @chipnr:	number of the current chip
- * @oobmode:	1 = full buffer verify, 0 = ecc only
+ * nand_read_page_hwecc - [REPLACABLE] hardware ecc based page read function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	buffer to store read data
  *
- * The NAND device assumes that it is always writing to a cleanly erased page.
- * Hence, it performs its internal write verification only on bits that
- * transitioned from 1 to 0. The device does NOT verify the whole page on a
- * byte by byte basis. It is possible that the page was not completely erased
- * or the page is becoming unusable due to wear. The read with ECC would catch
- * the error later when the ECC page check fails, but we would rather catch
- * it early in the page write stage. Better to write no data than invalid data.
+ * Not for syndrome calculating ecc controllers which need a special oob layout
  */
-static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
-	u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode)
-{
-	int	i, j, datidx = 0, oobofs = 0, res = -EIO;
-	int	eccsteps = this->eccsteps;
-	int	hweccbytes;
-	u_char	oobdata[64];
-
-	hweccbytes = (this->options & NAND_HWECC_SYNDROME) ? (oobsel->eccbytes / eccsteps) : 0;
-
-	/* Send command to read back the first page */
-	this->cmdfunc (mtd, NAND_CMD_READ0, 0, page);
-
-	for(;;) {
-		for (j = 0; j < eccsteps; j++) {
-			/* Loop through and verify the data */
-			if (this->verify_buf(mtd, &this->data_poi[datidx], mtd->eccsize)) {
-				MTDDEBUG (MTD_DEBUG_LEVEL0, "%s: "
-				          "Failed write verify, page 0x%08x ",
-				          __FUNCTION__, page);
-				goto out;
-			}
-			datidx += mtd->eccsize;
-			/* Have we a hw generator layout ? */
-			if (!hweccbytes)
-				continue;
-			if (this->verify_buf(mtd, &this->oob_buf[oobofs], hweccbytes)) {
-				MTDDEBUG (MTD_DEBUG_LEVEL0, "%s: "
-				          "Failed write verify, page 0x%08x ",
-				          __FUNCTION__, page);
-				goto out;
-			}
-			oobofs += hweccbytes;
-		}
+static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
+				uint8_t *buf)
+{
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	uint8_t *p = buf;
+	uint8_t *ecc_calc = chip->buffers->ecccalc;
+	uint8_t *ecc_code = chip->buffers->ecccode;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
+
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		chip->ecc.hwctl(mtd, NAND_ECC_READ);
+		chip->read_buf(mtd, p, eccsize);
+		chip->ecc.calculate(mtd, p, &ecc_calc[i]);
+	}
+	chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-		/* check, if we must compare all data or if we just have to
-		 * compare the ecc bytes
-		 */
-		if (oobmode) {
-			if (this->verify_buf(mtd, &oob_buf[oobofs], mtd->oobsize - hweccbytes * eccsteps)) {
-				MTDDEBUG (MTD_DEBUG_LEVEL0, "%s: "
-				          "Failed write verify, page 0x%08x ",
-				          __FUNCTION__, page);
-				goto out;
-			}
-		} else {
-			/* Read always, else autoincrement fails */
-			this->read_buf(mtd, oobdata, mtd->oobsize - hweccbytes * eccsteps);
-
-			if (oobsel->useecc != MTD_NANDECC_OFF && !hweccbytes) {
-				int ecccnt = oobsel->eccbytes;
-
-				for (i = 0; i < ecccnt; i++) {
-					int idx = oobsel->eccpos[i];
-					if (oobdata[idx] != oob_buf[oobofs + idx] ) {
-						MTDDEBUG (MTD_DEBUG_LEVEL0,
-						"%s: Failed ECC write "
-						"verify, page 0x%08x, "
-						"%6i bytes were succesful\n",
-						__FUNCTION__, page, i);
-						goto out;
-					}
-				}
-			}
-		}
-		oobofs += mtd->oobsize - hweccbytes * eccsteps;
-		page++;
-		numpages--;
-
-		/* Apply delay or wait for ready/busy pin
-		 * Do this before the AUTOINCR check, so no problems
-		 * arise if a chip which does auto increment
-		 * is marked as NOAUTOINCR by the board driver.
-		 * Do this also before returning, so the chip is
-		 * ready for the next command.
-		*/
-		if (!this->dev_ready)
-			udelay (this->chip_delay);
-		else
-			while (!this->dev_ready(mtd));
+	for (i = 0; i < chip->ecc.total; i++)
+		ecc_code[i] = chip->oob_poi[eccpos[i]];
 
-		/* All done, return happy */
-		if (!numpages)
-			return 0;
+	eccsteps = chip->ecc.steps;
+	p = buf;
 
+	for (i = 0 ; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		int stat;
 
-		/* Check, if the chip supports auto page increment */
-		if (!NAND_CANAUTOINCR(this))
-			this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
+		stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
+		if (stat == -1)
+			mtd->ecc_stats.failed++;
+		else
+			mtd->ecc_stats.corrected += stat;
 	}
-	/*
-	 * Terminate the read command. We come here in case of an error
-	 * So we must issue a reset command.
-	 */
-out:
-	this->cmdfunc (mtd, NAND_CMD_RESET, -1, -1);
-	return res;
-}
-#endif
-
-/**
- * nand_read - [MTD Interface] MTD compability function for nand_read_ecc
- * @mtd:	MTD device structure
- * @from:	offset to read from
- * @len:	number of bytes to read
- * @retlen:	pointer to variable to store the number of read bytes
- * @buf:	the databuffer to put data
- *
- * This function simply calls nand_read_ecc with oob buffer and oobsel = NULL
-*/
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
-{
-	return nand_read_ecc (mtd, from, len, retlen, buf, NULL, NULL);
+	return 0;
 }
 
-
 /**
- * nand_read_ecc - [MTD Interface] Read data with ECC
- * @mtd:	MTD device structure
- * @from:	offset to read from
- * @len:	number of bytes to read
- * @retlen:	pointer to variable to store the number of read bytes
- * @buf:	the databuffer to put data
- * @oob_buf:	filesystem supplied oob data buffer
- * @oobsel:	oob selection structure
+ * nand_read_page_syndrome - [REPLACABLE] hardware ecc syndrom based page read
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	buffer to store read data
  *
- * NAND read with ECC
+ * The hw generator calculates the error syndrome automatically. Therefor
+ * we need a special oob layout and handling.
  */
-static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
-			  size_t * retlen, u_char * buf, u_char * oob_buf, struct nand_oobinfo *oobsel)
+static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+				   uint8_t *buf)
 {
-	int i, j, col, realpage, page, end, ecc, chipnr, sndcmd = 1;
-	int read = 0, oob = 0, ecc_status = 0, ecc_failed = 0;
-	struct nand_chip *this = mtd->priv;
-	u_char *data_poi, *oob_data = oob_buf;
-	u_char ecc_calc[NAND_MAX_OOBSIZE];
-	u_char ecc_code[NAND_MAX_OOBSIZE];
-	int eccmode, eccsteps;
-	unsigned *oob_config;
-	int	datidx;
-	int	blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
-	int	eccbytes;
-	int	compareecc = 1;
-	int	oobreadlen;
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	uint8_t *p = buf;
+	uint8_t *oob = chip->oob_poi;
 
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		int stat;
 
-	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_read_ecc: from = 0x%08x, len = %i\n",
-	          (unsigned int) from, (int) len);
+		chip->ecc.hwctl(mtd, NAND_ECC_READ);
+		chip->read_buf(mtd, p, eccsize);
 
-	/* Do not allow reads past end of device */
-	if ((from + len) > mtd->size) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0,
-		          "nand_read_ecc: Attempt read beyond end of device\n");
-		*retlen = 0;
-		return -EINVAL;
-	}
-
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd ,FL_READING);
+		if (chip->ecc.prepad) {
+			chip->read_buf(mtd, oob, chip->ecc.prepad);
+			oob += chip->ecc.prepad;
+		}
 
-	/* use userspace supplied oobinfo, if zero */
-	if (oobsel == NULL)
-		oobsel = &mtd->oobinfo;
+		chip->ecc.hwctl(mtd, NAND_ECC_READSYN);
+		chip->read_buf(mtd, oob, eccbytes);
+		stat = chip->ecc.correct(mtd, p, oob, NULL);
 
-	/* Autoplace of oob data ? Use the default placement scheme */
-	if (oobsel->useecc == MTD_NANDECC_AUTOPLACE)
-		oobsel = this->autooob;
+		if (stat == -1)
+			mtd->ecc_stats.failed++;
+		else
+			mtd->ecc_stats.corrected += stat;
 
-	eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
-	oob_config = oobsel->eccpos;
+		oob += eccbytes;
 
-	/* Select the NAND device */
-	chipnr = (int)(from >> this->chip_shift);
-	this->select_chip(mtd, chipnr);
+		if (chip->ecc.postpad) {
+			chip->read_buf(mtd, oob, chip->ecc.postpad);
+			oob += chip->ecc.postpad;
+		}
+	}
 
-	/* First we calculate the starting page */
-	realpage = (int) (from >> this->page_shift);
-	page = realpage & this->pagemask;
+	/* Calculate remaining oob bytes */
+	i = mtd->oobsize - (oob - chip->oob_poi);
+	if (i)
+		chip->read_buf(mtd, oob, i);
 
-	/* Get raw starting column */
-	col = from & (mtd->oobblock - 1);
+	return 0;
+}
 
-	end = mtd->oobblock;
-	ecc = this->eccsize;
-	eccbytes = this->eccbytes;
+/**
+ * nand_transfer_oob - [Internal] Transfer oob to client buffer
+ * @chip:	nand chip structure
+ * @oob:	oob destination address
+ * @ops:	oob ops structure
+ * @len:	size of oob to transfer
+ */
+static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
+				  struct mtd_oob_ops *ops, size_t len)
+{
+	switch(ops->mode) {
+
+	case MTD_OOB_PLACE:
+	case MTD_OOB_RAW:
+		memcpy(oob, chip->oob_poi + ops->ooboffs, len);
+		return oob + len;
+
+	case MTD_OOB_AUTO: {
+		struct nand_oobfree *free = chip->ecc.layout->oobfree;
+		uint32_t boffs = 0, roffs = ops->ooboffs;
+		size_t bytes = 0;
+
+		for(; free->length && len; free++, len -= bytes) {
+			/* Read request not from offset 0 ? */
+			if (unlikely(roffs)) {
+				if (roffs >= free->length) {
+					roffs -= free->length;
+					continue;
+				}
+				boffs = free->offset + roffs;
+				bytes = min_t(size_t, len,
+					      (free->length - roffs));
+				roffs = 0;
+			} else {
+				bytes = min_t(size_t, len, free->length);
+				boffs = free->offset;
+			}
+			memcpy(oob, chip->oob_poi + boffs, bytes);
+			oob += bytes;
+		}
+		return oob;
+	}
+	default:
+		BUG();
+	}
+	return NULL;
+}
 
-	if ((eccmode == NAND_ECC_NONE) || (this->options & NAND_HWECC_SYNDROME))
-		compareecc = 0;
+/**
+ * nand_do_read_ops - [Internal] Read data with ECC
+ *
+ * @mtd:	MTD device structure
+ * @from:	offset to read from
+ * @ops:	oob ops structure
+ *
+ * Internal function. Called with chip held.
+ */
+static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
+			    struct mtd_oob_ops *ops)
+{
+	int chipnr, page, realpage, col, bytes, aligned;
+	struct nand_chip *chip = mtd->priv;
+	struct mtd_ecc_stats stats;
+	int blkcheck = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
+	int sndcmd = 1;
+	int ret = 0;
+	uint32_t readlen = ops->len;
+	uint32_t oobreadlen = ops->ooblen;
+	uint8_t *bufpoi, *oob, *buf;
 
-	oobreadlen = mtd->oobsize;
-	if (this->options & NAND_HWECC_SYNDROME)
-		oobreadlen -= oobsel->eccbytes;
+	stats = mtd->ecc_stats;
 
-	/* Loop until all data read */
-	while (read < len) {
+	chipnr = (int)(from >> chip->chip_shift);
+	chip->select_chip(mtd, chipnr);
 
-		int aligned = (!col && (len - read) >= end);
-		/*
-		 * If the read is not page aligned, we have to read into data buffer
-		 * due to ecc, else we read into return buffer direct
-		 */
-		if (aligned)
-			data_poi = &buf[read];
-		else
-			data_poi = this->data_buf;
+	realpage = (int)(from >> chip->page_shift);
+	page = realpage & chip->pagemask;
 
-		/* Check, if we have this page in the buffer
-		 *
-		 * FIXME: Make it work when we must provide oob data too,
-		 * check the usage of data_buf oob field
-		 */
-		if (realpage == this->pagebuf && !oob_buf) {
-			/* aligned read ? */
-			if (aligned)
-				memcpy (data_poi, this->data_buf, end);
-			goto readdata;
-		}
+	col = (int)(from & (mtd->writesize - 1));
 
-		/* Check, if we must send the read command */
-		if (sndcmd) {
-			this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
-			sndcmd = 0;
-		}
+	buf = ops->datbuf;
+	oob = ops->oobbuf;
 
-		/* get oob area, if we have no oob buffer from fs-driver */
-		if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE ||
-			oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
-			oob_data = &this->data_buf[end];
+	while(1) {
+		bytes = min(mtd->writesize - col, readlen);
+		aligned = (bytes == mtd->writesize);
 
-		eccsteps = this->eccsteps;
+		/* Is the current page in the buffer ? */
+		if (realpage != chip->pagebuf || oob) {
+			bufpoi = aligned ? buf : chip->buffers->databuf;
 
-		switch (eccmode) {
-		case NAND_ECC_NONE: {	/* No ECC, Read in a page */
-/* XXX U-BOOT XXX */
-#if 0
-			static unsigned long lastwhinge = 0;
-			if ((lastwhinge / HZ) != (jiffies / HZ)) {
-				printk (KERN_WARNING "Reading data from NAND FLASH without ECC is not recommended\n");
-				lastwhinge = jiffies;
+			if (likely(sndcmd)) {
+				chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
+				sndcmd = 0;
 			}
-#else
-			puts("Reading data from NAND FLASH without ECC is not recommended\n");
-#endif
-			this->read_buf(mtd, data_poi, end);
-			break;
-		}
 
-		case NAND_ECC_SOFT:	/* Software ECC 3/256: Read in a page + oob data */
-			this->read_buf(mtd, data_poi, end);
-			for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc)
-				this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
-			break;
+			/* Now read the page into the buffer */
+			if (unlikely(ops->mode == MTD_OOB_RAW))
+				ret = chip->ecc.read_page_raw(mtd, chip, bufpoi);
+			else
+				ret = chip->ecc.read_page(mtd, chip, bufpoi);
+			if (ret < 0)
+				break;
 
-		default:
-			for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=eccbytes, datidx += ecc) {
-				this->enable_hwecc(mtd, NAND_ECC_READ);
-				this->read_buf(mtd, &data_poi[datidx], ecc);
-
-				/* HW ecc with syndrome calculation must read the
-				 * syndrome from flash immidiately after the data */
-				if (!compareecc) {
-					/* Some hw ecc generators need to know when the
-					 * syndrome is read from flash */
-					this->enable_hwecc(mtd, NAND_ECC_READSYN);
-					this->read_buf(mtd, &oob_data[i], eccbytes);
-					/* We calc error correction directly, it checks the hw
-					 * generator for an error, reads back the syndrome and
-					 * does the error correction on the fly */
-					if (this->correct_data(mtd, &data_poi[datidx], &oob_data[i], &ecc_code[i]) == -1) {
-						MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: "
-							"Failed ECC read, page 0x%08x on chip %d\n", page, chipnr);
-						ecc_failed++;
-					}
-				} else {
-					this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
-				}
+			/* Transfer not aligned data */
+			if (!aligned) {
+				chip->pagebuf = realpage;
+				memcpy(buf, chip->buffers->databuf + col, bytes);
 			}
-			break;
-		}
 
-		/* read oobdata */
-		this->read_buf(mtd, &oob_data[mtd->oobsize - oobreadlen], oobreadlen);
-
-		/* Skip ECC check, if not requested (ECC_NONE or HW_ECC with syndromes) */
-		if (!compareecc)
-			goto readoob;
-
-		/* Pick the ECC bytes out of the oob data */
-		for (j = 0; j < oobsel->eccbytes; j++)
-			ecc_code[j] = oob_data[oob_config[j]];
-
-		/* correct data, if neccecary */
-		for (i = 0, j = 0, datidx = 0; i < this->eccsteps; i++, datidx += ecc) {
-			ecc_status = this->correct_data(mtd, &data_poi[datidx], &ecc_code[j], &ecc_calc[j]);
-
-			/* Get next chunk of ecc bytes */
-			j += eccbytes;
-
-			/* Check, if we have a fs supplied oob-buffer,
-			 * This is the legacy mode. Used by YAFFS1
-			 * Should go away some day
-			 */
-			if (oob_buf && oobsel->useecc == MTD_NANDECC_PLACE) {
-				int *p = (int *)(&oob_data[mtd->oobsize]);
-				p[i] = ecc_status;
+			buf += bytes;
+
+			if (unlikely(oob)) {
+				/* Raw mode does data:oob:data:oob */
+				if (ops->mode != MTD_OOB_RAW) {
+					int toread = min(oobreadlen,
+						chip->ecc.layout->oobavail);
+					if (toread) {
+						oob = nand_transfer_oob(chip,
+							oob, ops, toread);
+						oobreadlen -= toread;
+					}
+				} else
+					buf = nand_transfer_oob(chip,
+						buf, ops, mtd->oobsize);
 			}
 
-			if (ecc_status == -1) {
-				MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: "
-				          "Failed ECC read, page 0x%08x\n",
-				          page);
-				ecc_failed++;
+			if (!(chip->options & NAND_NO_READRDY)) {
+				/*
+				 * Apply delay or wait for ready/busy pin. Do
+				 * this before the AUTOINCR check, so no
+				 * problems arise if a chip which does auto
+				 * increment is marked as NOAUTOINCR by the
+				 * board driver.
+				 */
+				if (!chip->dev_ready)
+					udelay(chip->chip_delay);
+				else
+					nand_wait_ready(mtd);
 			}
+		} else {
+			memcpy(buf, chip->buffers->databuf + col, bytes);
+			buf += bytes;
 		}
 
-	readoob:
-		/* check, if we have a fs supplied oob-buffer */
-		if (oob_buf) {
-			/* without autoplace. Legacy mode used by YAFFS1 */
-			switch(oobsel->useecc) {
-			case MTD_NANDECC_AUTOPLACE:
-			case MTD_NANDECC_AUTOPL_USR:
-				/* Walk through the autoplace chunks */
-				for (i = 0, j = 0; j < mtd->oobavail; i++) {
-					int from = oobsel->oobfree[i][0];
-					int num = oobsel->oobfree[i][1];
-					memcpy(&oob_buf[oob+j], &oob_data[from], num);
-					j+= num;
-				}
-				oob += mtd->oobavail;
-				break;
-			case MTD_NANDECC_PLACE:
-				/* YAFFS1 legacy mode */
-				oob_data += this->eccsteps * sizeof (int);
-			default:
-				oob_data += mtd->oobsize;
-			}
-		}
-	readdata:
-		/* Partial page read, transfer data into fs buffer */
-		if (!aligned) {
-			for (j = col; j < end && read < len; j++)
-				buf[read++] = data_poi[j];
-			this->pagebuf = realpage;
-		} else
-			read += mtd->oobblock;
-
-		/* Apply delay or wait for ready/busy pin
-		 * Do this before the AUTOINCR check, so no problems
-		 * arise if a chip which does auto increment
-		 * is marked as NOAUTOINCR by the board driver.
-		*/
-		if (!this->dev_ready)
-			udelay (this->chip_delay);
-		else
-			while (!this->dev_ready(mtd));
+		readlen -= bytes;
 
-		if (read == len)
+		if (!readlen)
 			break;
 
 		/* For subsequent reads align to page boundary. */
@@ -1360,732 +1159,829 @@ static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
 		/* Increment page address */
 		realpage++;
 
-		page = realpage & this->pagemask;
+		page = realpage & chip->pagemask;
 		/* Check, if we cross a chip boundary */
 		if (!page) {
 			chipnr++;
-			this->select_chip(mtd, -1);
-			this->select_chip(mtd, chipnr);
+			chip->select_chip(mtd, -1);
+			chip->select_chip(mtd, chipnr);
 		}
+
 		/* Check, if the chip supports auto page increment
 		 * or if we have hit a block boundary.
-		*/
-		if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
+		 */
+		if (!NAND_CANAUTOINCR(chip) || !(page & blkcheck))
 			sndcmd = 1;
 	}
 
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
+	ops->retlen = ops->len - (size_t) readlen;
+	if (oob)
+		ops->oobretlen = ops->ooblen - oobreadlen;
 
-	/*
-	 * Return success, if no ECC failures, else -EBADMSG
-	 * fs driver will take care of that, because
-	 * retlen == desired len and result == -EBADMSG
-	 */
-	*retlen = read;
-	return ecc_failed ? -EBADMSG : 0;
+	if (ret)
+		return ret;
+
+	if (mtd->ecc_stats.failed - stats.failed)
+		return -EBADMSG;
+
+	return  mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
 }
 
 /**
- * nand_read_oob - [MTD Interface] NAND read out-of-band
+ * nand_read - [MTD Interface] MTD compability function for nand_do_read_ecc
  * @mtd:	MTD device structure
  * @from:	offset to read from
  * @len:	number of bytes to read
  * @retlen:	pointer to variable to store the number of read bytes
  * @buf:	the databuffer to put data
  *
- * NAND read out-of-band data from the spare area
+ * Get hold of the chip and call nand_do_read
  */
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
+static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
+		     size_t *retlen, uint8_t *buf)
 {
-	int i, col, page, chipnr;
-	struct nand_chip *this = mtd->priv;
-	int	blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
+	struct nand_chip *chip = mtd->priv;
+	int ret;
 
-	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08x, len = %i\n",
-	          (unsigned int) from, (int) len);
+	/* Do not allow reads past end of device */
+	if ((from + len) > mtd->size)
+		return -EINVAL;
+	if (!len)
+		return 0;
 
-	/* Shift to get page */
-	page = (int)(from >> this->page_shift);
-	chipnr = (int)(from >> this->chip_shift);
+	nand_get_device(chip, mtd, FL_READING);
 
-	/* Mask to get column */
-	col = from & (mtd->oobsize - 1);
+	chip->ops.len = len;
+	chip->ops.datbuf = buf;
+	chip->ops.oobbuf = NULL;
 
-	/* Initialize return length value */
-	*retlen = 0;
+	ret = nand_do_read_ops(mtd, from, &chip->ops);
 
-	/* Do not allow reads past end of device */
-	if ((from + len) > mtd->size) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0,
-		          "nand_read_oob: Attempt read beyond end of device\n");
-		*retlen = 0;
-		return -EINVAL;
+	*retlen = chip->ops.retlen;
+
+	nand_release_device(mtd);
+
+	return ret;
+}
+
+/**
+ * nand_read_oob_std - [REPLACABLE] the most common OOB data read function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @page:	page number to read
+ * @sndcmd:	flag whether to issue read command or not
+ */
+static int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
+			     int page, int sndcmd)
+{
+	if (sndcmd) {
+		chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
+		sndcmd = 0;
 	}
+	chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+	return sndcmd;
+}
 
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd , FL_READING);
+/**
+ * nand_read_oob_syndrome - [REPLACABLE] OOB data read function for HW ECC
+ *			    with syndromes
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @page:	page number to read
+ * @sndcmd:	flag whether to issue read command or not
+ */
+static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+				  int page, int sndcmd)
+{
+	uint8_t *buf = chip->oob_poi;
+	int length = mtd->oobsize;
+	int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad;
+	int eccsize = chip->ecc.size;
+	uint8_t *bufpoi = buf;
+	int i, toread, sndrnd = 0, pos;
+
+	chip->cmdfunc(mtd, NAND_CMD_READ0, chip->ecc.size, page);
+	for (i = 0; i < chip->ecc.steps; i++) {
+		if (sndrnd) {
+			pos = eccsize + i * (eccsize + chunk);
+			if (mtd->writesize > 512)
+				chip->cmdfunc(mtd, NAND_CMD_RNDOUT, pos, -1);
+			else
+				chip->cmdfunc(mtd, NAND_CMD_READ0, pos, page);
+		} else
+			sndrnd = 1;
+		toread = min_t(int, length, chunk);
+		chip->read_buf(mtd, bufpoi, toread);
+		bufpoi += toread;
+		length -= toread;
+	}
+	if (length > 0)
+		chip->read_buf(mtd, bufpoi, length);
 
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
+	return 1;
+}
+
+/**
+ * nand_write_oob_std - [REPLACABLE] the most common OOB data write function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @page:	page number to write
+ */
+static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
+			      int page)
+{
+	int status = 0;
+	const uint8_t *buf = chip->oob_poi;
+	int length = mtd->oobsize;
+
+	chip->cmdfunc(mtd, NAND_CMD_SEQIN, mtd->writesize, page);
+	chip->write_buf(mtd, buf, length);
+	/* Send command to program the OOB data */
+	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+	status = chip->waitfunc(mtd, chip);
+
+	return status & NAND_STATUS_FAIL ? -EIO : 0;
+}
+
+/**
+ * nand_write_oob_syndrome - [REPLACABLE] OOB data write function for HW ECC
+ *			     with syndrome - only for large page flash !
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @page:	page number to write
+ */
+static int nand_write_oob_syndrome(struct mtd_info *mtd,
+				   struct nand_chip *chip, int page)
+{
+	int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad;
+	int eccsize = chip->ecc.size, length = mtd->oobsize;
+	int i, len, pos, status = 0, sndcmd = 0, steps = chip->ecc.steps;
+	const uint8_t *bufpoi = chip->oob_poi;
 
-	/* Send the read command */
-	this->cmdfunc (mtd, NAND_CMD_READOOB, col, page & this->pagemask);
 	/*
-	 * Read the data, if we read more than one page
-	 * oob data, let the device transfer the data !
+	 * data-ecc-data-ecc ... ecc-oob
+	 * or
+	 * data-pad-ecc-pad-data-pad .... ecc-pad-oob
 	 */
-	i = 0;
-	while (i < len) {
-		int thislen = mtd->oobsize - col;
-		thislen = min_t(int, thislen, len);
-		this->read_buf(mtd, &buf[i], thislen);
-		i += thislen;
-
-		/* Apply delay or wait for ready/busy pin
-		 * Do this before the AUTOINCR check, so no problems
-		 * arise if a chip which does auto increment
-		 * is marked as NOAUTOINCR by the board driver.
-		*/
-		if (!this->dev_ready)
-			udelay (this->chip_delay);
-		else
-			while (!this->dev_ready(mtd));
-
-		/* Read more ? */
-		if (i < len) {
-			page++;
-			col = 0;
-
-			/* Check, if we cross a chip boundary */
-			if (!(page & this->pagemask)) {
-				chipnr++;
-				this->select_chip(mtd, -1);
-				this->select_chip(mtd, chipnr);
-			}
-
-			/* Check, if the chip supports auto page increment
-			 * or if we have hit a block boundary.
-			*/
-			if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) {
-				/* For subsequent page reads set offset to 0 */
-				this->cmdfunc (mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
+	if (!chip->ecc.prepad && !chip->ecc.postpad) {
+		pos = steps * (eccsize + chunk);
+		steps = 0;
+	} else
+		pos = eccsize;
+
+	chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page);
+	for (i = 0; i < steps; i++) {
+		if (sndcmd) {
+			if (mtd->writesize <= 512) {
+				uint32_t fill = 0xFFFFFFFF;
+
+				len = eccsize;
+				while (len > 0) {
+					int num = min_t(int, len, 4);
+					chip->write_buf(mtd, (uint8_t *)&fill,
+							num);
+					len -= num;
+				}
+			} else {
+				pos = eccsize + i * (eccsize + chunk);
+				chip->cmdfunc(mtd, NAND_CMD_RNDIN, pos, -1);
 			}
-		}
+		} else
+			sndcmd = 1;
+		len = min_t(int, length, chunk);
+		chip->write_buf(mtd, bufpoi, len);
+		bufpoi += len;
+		length -= len;
 	}
+	if (length > 0)
+		chip->write_buf(mtd, bufpoi, length);
 
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
+	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+	status = chip->waitfunc(mtd, chip);
 
-	/* Return happy */
-	*retlen = len;
-	return 0;
+	return status & NAND_STATUS_FAIL ? -EIO : 0;
 }
 
 /**
- * nand_read_raw - [GENERIC] Read raw data including oob into buffer
+ * nand_do_read_oob - [Intern] NAND read out-of-band
  * @mtd:	MTD device structure
- * @buf:	temporary buffer
  * @from:	offset to read from
- * @len:	number of bytes to read
- * @ooblen:	number of oob data bytes to read
+ * @ops:	oob operations description structure
  *
- * Read raw data including oob into buffer
+ * NAND read out-of-band data from the spare area
  */
-int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen)
+static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
+			    struct mtd_oob_ops *ops)
 {
-	struct nand_chip *this = mtd->priv;
-	int page = (int) (from >> this->page_shift);
-	int chip = (int) (from >> this->chip_shift);
-	int sndcmd = 1;
-	int cnt = 0;
-	int pagesize = mtd->oobblock + mtd->oobsize;
-	int	blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
+	int page, realpage, chipnr, sndcmd = 1;
+	struct nand_chip *chip = mtd->priv;
+	int blkcheck = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
+	int readlen = ops->ooblen;
+	int len;
+	uint8_t *buf = ops->oobbuf;
+
+	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08Lx, len = %i\n",
+	          (unsigned long long)from, readlen);
+
+	if (ops->mode == MTD_OOB_AUTO)
+		len = chip->ecc.layout->oobavail;
+	else
+		len = mtd->oobsize;
+
+	if (unlikely(ops->ooboffs >= len)) {
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		          "Attempt to start read outside oob\n");
+		return -EINVAL;
+	}
 
 	/* Do not allow reads past end of device */
-	if ((from + len) > mtd->size) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0,
-		          "nand_read_raw: Attempt read beyond end of device\n");
+	if (unlikely(from >= mtd->size ||
+		     ops->ooboffs + readlen > ((mtd->size >> chip->page_shift) -
+					(from >> chip->page_shift)) * len)) {
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		          "Attempt read beyond end of device\n");
 		return -EINVAL;
 	}
 
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd , FL_READING);
+	chipnr = (int)(from >> chip->chip_shift);
+	chip->select_chip(mtd, chipnr);
 
-	this->select_chip (mtd, chip);
+	/* Shift to get page */
+	realpage = (int)(from >> chip->page_shift);
+	page = realpage & chip->pagemask;
 
-	/* Add requested oob length */
-	len += ooblen;
+	while(1) {
+		sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
 
-	while (len) {
-		if (sndcmd)
-			this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask);
-		sndcmd = 0;
+		len = min(len, readlen);
+		buf = nand_transfer_oob(chip, buf, ops, len);
 
-		this->read_buf (mtd, &buf[cnt], pagesize);
+		if (!(chip->options & NAND_NO_READRDY)) {
+			/*
+			 * Apply delay or wait for ready/busy pin. Do this
+			 * before the AUTOINCR check, so no problems arise if a
+			 * chip which does auto increment is marked as
+			 * NOAUTOINCR by the board driver.
+			 */
+			if (!chip->dev_ready)
+				udelay(chip->chip_delay);
+			else
+				nand_wait_ready(mtd);
+		}
 
-		len -= pagesize;
-		cnt += pagesize;
-		page++;
+		readlen -= len;
+		if (!readlen)
+			break;
 
-		if (!this->dev_ready)
-			udelay (this->chip_delay);
-		else
-			while (!this->dev_ready(mtd));
+		/* Increment page address */
+		realpage++;
+
+		page = realpage & chip->pagemask;
+		/* Check, if we cross a chip boundary */
+		if (!page) {
+			chipnr++;
+			chip->select_chip(mtd, -1);
+			chip->select_chip(mtd, chipnr);
+		}
 
-		/* Check, if the chip supports auto page increment */
-		if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
+		/* Check, if the chip supports auto page increment
+		 * or if we have hit a block boundary.
+		 */
+		if (!NAND_CANAUTOINCR(chip) || !(page & blkcheck))
 			sndcmd = 1;
 	}
 
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
+	ops->oobretlen = ops->ooblen;
 	return 0;
 }
 
-
 /**
- * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer
+ * nand_read_oob - [MTD Interface] NAND read data and/or out-of-band
  * @mtd:	MTD device structure
- * @fsbuf:	buffer given by fs driver
- * @oobsel:	out of band selection structre
- * @autoplace:	1 = place given buffer into the oob bytes
- * @numpages:	number of pages to prepare
- *
- * Return:
- * 1. Filesystem buffer available and autoplacement is off,
- *    return filesystem buffer
- * 2. No filesystem buffer or autoplace is off, return internal
- *    buffer
- * 3. Filesystem buffer is given and autoplace selected
- *    put data from fs buffer into internal buffer and
- *    retrun internal buffer
- *
- * Note: The internal buffer is filled with 0xff. This must
- * be done only once, when no autoplacement happens
- * Autoplacement sets the buffer dirty flag, which
- * forces the 0xff fill before using the buffer again.
+ * @from:	offset to read from
+ * @ops:	oob operation description structure
  *
-*/
-static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct nand_oobinfo *oobsel,
-		int autoplace, int numpages)
+ * NAND read data and/or out-of-band data
+ */
+static int nand_read_oob(struct mtd_info *mtd, loff_t from,
+			 struct mtd_oob_ops *ops)
 {
-	struct nand_chip *this = mtd->priv;
-	int i, len, ofs;
+	struct nand_chip *chip = mtd->priv;
+	int ret = -ENOTSUPP;
 
-	/* Zero copy fs supplied buffer */
-	if (fsbuf && !autoplace)
-		return fsbuf;
+	ops->retlen = 0;
 
-	/* Check, if the buffer must be filled with ff again */
-	if (this->oobdirty) {
-		memset (this->oob_buf, 0xff,
-			mtd->oobsize << (this->phys_erase_shift - this->page_shift));
-		this->oobdirty = 0;
+	/* Do not allow reads past end of device */
+	if (ops->datbuf && (from + ops->len) > mtd->size) {
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		          "Attempt read beyond end of device\n");
+		return -EINVAL;
 	}
 
-	/* If we have no autoplacement or no fs buffer use the internal one */
-	if (!autoplace || !fsbuf)
-		return this->oob_buf;
-
-	/* Walk through the pages and place the data */
-	this->oobdirty = 1;
-	ofs = 0;
-	while (numpages--) {
-		for (i = 0, len = 0; len < mtd->oobavail; i++) {
-			int to = ofs + oobsel->oobfree[i][0];
-			int num = oobsel->oobfree[i][1];
-			memcpy (&this->oob_buf[to], fsbuf, num);
-			len += num;
-			fsbuf += num;
-		}
-		ofs += mtd->oobavail;
+	nand_get_device(chip, mtd, FL_READING);
+
+	switch(ops->mode) {
+	case MTD_OOB_PLACE:
+	case MTD_OOB_AUTO:
+	case MTD_OOB_RAW:
+		break;
+
+	default:
+		goto out;
 	}
-	return this->oob_buf;
+
+	if (!ops->datbuf)
+		ret = nand_do_read_oob(mtd, from, ops);
+	else
+		ret = nand_do_read_ops(mtd, from, ops);
+
+ out:
+	nand_release_device(mtd);
+	return ret;
 }
 
-#define NOTALIGNED(x) (x & (mtd->oobblock-1)) != 0
 
 /**
- * nand_write - [MTD Interface] compability function for nand_write_ecc
- * @mtd:	MTD device structure
- * @to:		offset to write to
- * @len:	number of bytes to write
- * @retlen:	pointer to variable to store the number of written bytes
- * @buf:	the data to write
- *
- * This function simply calls nand_write_ecc with oob buffer and oobsel = NULL
- *
-*/
-static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
+ * nand_write_page_raw - [Intern] raw page write function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	data buffer
+ */
+static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+				const uint8_t *buf)
 {
-	return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL));
+	chip->write_buf(mtd, buf, mtd->writesize);
+	chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
 }
 
 /**
- * nand_write_ecc - [MTD Interface] NAND write with ECC
- * @mtd:	MTD device structure
- * @to:		offset to write to
- * @len:	number of bytes to write
- * @retlen:	pointer to variable to store the number of written bytes
- * @buf:	the data to write
- * @eccbuf:	filesystem supplied oob data buffer
- * @oobsel:	oob selection structure
- *
- * NAND write with ECC
+ * nand_write_page_swecc - [REPLACABLE] software ecc based page write function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	data buffer
  */
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
-			   size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel)
+static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
+				  const uint8_t *buf)
 {
-	int startpage, page, ret = -EIO, oob = 0, written = 0, chipnr;
-	int autoplace = 0, numpages, totalpages;
-	struct nand_chip *this = mtd->priv;
-	u_char *oobbuf, *bufstart;
-	int	ppblock = (1 << (this->phys_erase_shift - this->page_shift));
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	uint8_t *ecc_calc = chip->buffers->ecccalc;
+	const uint8_t *p = buf;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
 
-	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_write_ecc: to = 0x%08x, len = %i\n",
-	          (unsigned int) to, (int) len);
+	/* Software ecc calculation */
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
+		chip->ecc.calculate(mtd, p, &ecc_calc[i]);
 
-	/* Initialize retlen, in case of early exit */
-	*retlen = 0;
+	for (i = 0; i < chip->ecc.total; i++)
+		chip->oob_poi[eccpos[i]] = ecc_calc[i];
 
-	/* Do not allow write past end of device */
-	if ((to + len) > mtd->size) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0,
-		          "nand_write_ecc: Attempt to write past end of page\n");
-		return -EINVAL;
-	}
+	chip->ecc.write_page_raw(mtd, chip, buf);
+}
 
-	/* reject writes, which are not page aligned */
-	if (NOTALIGNED (to) || NOTALIGNED(len)) {
-		printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
-		return -EINVAL;
+/**
+ * nand_write_page_hwecc - [REPLACABLE] hardware ecc based page write function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	data buffer
+ */
+static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
+				  const uint8_t *buf)
+{
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	uint8_t *ecc_calc = chip->buffers->ecccalc;
+	const uint8_t *p = buf;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
+
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
+		chip->write_buf(mtd, p, eccsize);
+		chip->ecc.calculate(mtd, p, &ecc_calc[i]);
 	}
 
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_WRITING);
+	for (i = 0; i < chip->ecc.total; i++)
+		chip->oob_poi[eccpos[i]] = ecc_calc[i];
 
-	/* Calculate chipnr */
-	chipnr = (int)(to >> this->chip_shift);
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
+	chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
+}
 
-	/* Check, if it is write protected */
-	if (nand_check_wp(mtd)) {
-		printk (KERN_NOTICE "nand_write_ecc: Device is write protected\n");
-		goto out;
-	}
+/**
+ * nand_write_page_syndrome - [REPLACABLE] hardware ecc syndrom based page write
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	data buffer
+ *
+ * The hw generator calculates the error syndrome automatically. Therefor
+ * we need a special oob layout and handling.
+ */
+static void nand_write_page_syndrome(struct mtd_info *mtd,
+				    struct nand_chip *chip, const uint8_t *buf)
+{
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	const uint8_t *p = buf;
+	uint8_t *oob = chip->oob_poi;
 
-	/* if oobsel is NULL, use chip defaults */
-	if (oobsel == NULL)
-		oobsel = &mtd->oobinfo;
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
 
-	/* Autoplace of oob data ? Use the default placement scheme */
-	if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
-		oobsel = this->autooob;
-		autoplace = 1;
-	}
-	if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
-		autoplace = 1;
+		chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
+		chip->write_buf(mtd, p, eccsize);
 
-	/* Setup variables and oob buffer */
-	totalpages = len >> this->page_shift;
-	page = (int) (to >> this->page_shift);
-	/* Invalidate the page cache, if we write to the cached page */
-	if (page <= this->pagebuf && this->pagebuf < (page + totalpages))
-		this->pagebuf = -1;
-
-	/* Set it relative to chip */
-	page &= this->pagemask;
-	startpage = page;
-	/* Calc number of pages we can write in one go */
-	numpages = min (ppblock - (startpage  & (ppblock - 1)), totalpages);
-	oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel, autoplace, numpages);
-	bufstart = (u_char *)buf;
-
-	/* Loop until all data is written */
-	while (written < len) {
-
-		this->data_poi = (u_char*) &buf[written];
-		/* Write one page. If this is the last page to write
-		 * or the last page in this block, then use the
-		 * real pageprogram command, else select cached programming
-		 * if supported by the chip.
-		 */
-		ret = nand_write_page (mtd, this, page, &oobbuf[oob], oobsel, (--numpages > 0));
-		if (ret) {
-			MTDDEBUG (MTD_DEBUG_LEVEL0,
-			          "nand_write_ecc: write_page failed %d\n", ret);
-			goto out;
+		if (chip->ecc.prepad) {
+			chip->write_buf(mtd, oob, chip->ecc.prepad);
+			oob += chip->ecc.prepad;
 		}
-		/* Next oob page */
-		oob += mtd->oobsize;
-		/* Update written bytes count */
-		written += mtd->oobblock;
-		if (written == len)
-			goto cmp;
 
-		/* Increment page address */
-		page++;
-
-		/* Have we hit a block boundary ? Then we have to verify and
-		 * if verify is ok, we have to setup the oob buffer for
-		 * the next pages.
-		*/
-		if (!(page & (ppblock - 1))){
-			int ofs;
-			this->data_poi = bufstart;
-			ret = nand_verify_pages (mtd, this, startpage,
-				page - startpage,
-				oobbuf, oobsel, chipnr, (eccbuf != NULL));
-			if (ret) {
-				MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: "
-				          "verify_pages failed %d\n", ret);
-				goto out;
-			}
-			*retlen = written;
-			bufstart = (u_char*) &buf[written];
-
-			ofs = autoplace ? mtd->oobavail : mtd->oobsize;
-			if (eccbuf)
-				eccbuf += (page - startpage) * ofs;
-			totalpages -= page - startpage;
-			numpages = min (totalpages, ppblock);
-			page &= this->pagemask;
-			startpage = page;
-			oob = 0;
-			this->oobdirty = 1;
-			oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel,
-					autoplace, numpages);
-			/* Check, if we cross a chip boundary */
-			if (!page) {
-				chipnr++;
-				this->select_chip(mtd, -1);
-				this->select_chip(mtd, chipnr);
-			}
+		chip->ecc.calculate(mtd, p, oob);
+		chip->write_buf(mtd, oob, eccbytes);
+		oob += eccbytes;
+
+		if (chip->ecc.postpad) {
+			chip->write_buf(mtd, oob, chip->ecc.postpad);
+			oob += chip->ecc.postpad;
 		}
 	}
-	/* Verify the remaining pages */
-cmp:
-	this->data_poi = bufstart;
-	ret = nand_verify_pages (mtd, this, startpage, totalpages,
-		oobbuf, oobsel, chipnr, (eccbuf != NULL));
-	if (!ret)
-		*retlen = written;
+
+	/* Calculate remaining oob bytes */
+	i = mtd->oobsize - (oob - chip->oob_poi);
+	if (i)
+		chip->write_buf(mtd, oob, i);
+}
+
+/**
+ * nand_write_page - [REPLACEABLE] write one page
+ * @mtd:	MTD device structure
+ * @chip:	NAND chip descriptor
+ * @buf:	the data to write
+ * @page:	page number to write
+ * @cached:	cached programming
+ * @raw:	use _raw version of write_page
+ */
+static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
+			   const uint8_t *buf, int page, int cached, int raw)
+{
+	int status;
+
+	chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
+
+	if (unlikely(raw))
+		chip->ecc.write_page_raw(mtd, chip, buf);
 	else
-		MTDDEBUG (MTD_DEBUG_LEVEL0,
-		          "nand_write_ecc: verify_pages failed %d\n", ret);
+		chip->ecc.write_page(mtd, chip, buf);
 
-out:
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
+	/*
+	 * Cached progamming disabled for now, Not sure if its worth the
+	 * trouble. The speed gain is not very impressive. (2.3->2.6Mib/s)
+	 */
+	cached = 0;
 
-	return ret;
+	if (!cached || !(chip->options & NAND_CACHEPRG)) {
+
+		chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+		status = chip->waitfunc(mtd, chip);
+		/*
+		 * See if operation failed and additional status checks are
+		 * available
+		 */
+		if ((status & NAND_STATUS_FAIL) && (chip->errstat))
+			status = chip->errstat(mtd, chip, FL_WRITING, status,
+					       page);
+
+		if (status & NAND_STATUS_FAIL)
+			return -EIO;
+	} else {
+		chip->cmdfunc(mtd, NAND_CMD_CACHEDPROG, -1, -1);
+		status = chip->waitfunc(mtd, chip);
+	}
+
+#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
+	/* Send command to read back the data */
+	chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
+
+	if (chip->verify_buf(mtd, buf, mtd->writesize))
+		return -EIO;
+#endif
+	return 0;
 }
 
+/**
+ * nand_fill_oob - [Internal] Transfer client buffer to oob
+ * @chip:	nand chip structure
+ * @oob:	oob data buffer
+ * @ops:	oob ops structure
+ */
+static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob,
+				  struct mtd_oob_ops *ops)
+{
+	size_t len = ops->ooblen;
+
+	switch(ops->mode) {
+
+	case MTD_OOB_PLACE:
+	case MTD_OOB_RAW:
+		memcpy(chip->oob_poi + ops->ooboffs, oob, len);
+		return oob + len;
+
+	case MTD_OOB_AUTO: {
+		struct nand_oobfree *free = chip->ecc.layout->oobfree;
+		uint32_t boffs = 0, woffs = ops->ooboffs;
+		size_t bytes = 0;
+
+		for(; free->length && len; free++, len -= bytes) {
+			/* Write request not from offset 0 ? */
+			if (unlikely(woffs)) {
+				if (woffs >= free->length) {
+					woffs -= free->length;
+					continue;
+				}
+				boffs = free->offset + woffs;
+				bytes = min_t(size_t, len,
+					      (free->length - woffs));
+				woffs = 0;
+			} else {
+				bytes = min_t(size_t, len, free->length);
+				boffs = free->offset;
+			}
+			memcpy(chip->oob_poi + boffs, oob, bytes);
+			oob += bytes;
+		}
+		return oob;
+	}
+	default:
+		BUG();
+	}
+	return NULL;
+}
+
+#define NOTALIGNED(x)	(x & (chip->subpagesize - 1)) != 0
 
 /**
- * nand_write_oob - [MTD Interface] NAND write out-of-band
+ * nand_do_write_ops - [Internal] NAND write with ECC
  * @mtd:	MTD device structure
  * @to:		offset to write to
- * @len:	number of bytes to write
- * @retlen:	pointer to variable to store the number of written bytes
- * @buf:	the data to write
+ * @ops:	oob operations description structure
  *
- * NAND write out-of-band
+ * NAND write with ECC
  */
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
+static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
+			     struct mtd_oob_ops *ops)
 {
-	int column, page, status, ret = -EIO, chipnr;
-	struct nand_chip *this = mtd->priv;
-
-	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n",
-	          (unsigned int) to, (int) len);
-
-	/* Shift to get page */
-	page = (int) (to >> this->page_shift);
-	chipnr = (int) (to >> this->chip_shift);
+	int chipnr, realpage, page, blockmask, column;
+	struct nand_chip *chip = mtd->priv;
+	uint32_t writelen = ops->len;
+	uint8_t *oob = ops->oobbuf;
+	uint8_t *buf = ops->datbuf;
+	int ret, subpage;
 
-	/* Mask to get column */
-	column = to & (mtd->oobsize - 1);
+	ops->retlen = 0;
+	if (!writelen)
+		return 0;
 
-	/* Initialize return length value */
-	*retlen = 0;
-
-	/* Do not allow write past end of page */
-	if ((column + len) > mtd->oobsize) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: "
-		          "Attempt to write past end of page\n");
+	/* reject writes, which are not page aligned */
+	if (NOTALIGNED(to) || NOTALIGNED(ops->len)) {
+		printk(KERN_NOTICE "nand_write: "
+		       "Attempt to write not page aligned data\n");
 		return -EINVAL;
 	}
 
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_WRITING);
+	column = to & (mtd->writesize - 1);
+	subpage = column || (writelen & (mtd->writesize - 1));
 
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
+	if (subpage && oob)
+		return -EINVAL;
 
-	/* Reset the chip. Some chips (like the Toshiba TC5832DC found
-	   in one of my DiskOnChip 2000 test units) will clear the whole
-	   data page too if we don't do this. I have no clue why, but
-	   I seem to have 'fixed' it in the doc2000 driver in
-	   August 1999.  dwmw2. */
-	this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
+	chipnr = (int)(to >> chip->chip_shift);
+	chip->select_chip(mtd, chipnr);
 
 	/* Check, if it is write protected */
-	if (nand_check_wp(mtd))
-		goto out;
+	if (nand_check_wp(mtd)) {
+		printk (KERN_NOTICE "nand_do_write_ops: Device is write protected\n");
+		return -EIO;
+	}
 
-	/* Invalidate the page cache, if we write to the cached page */
-	if (page == this->pagebuf)
-		this->pagebuf = -1;
-
-	if (NAND_MUST_PAD(this)) {
-		/* Write out desired data */
-		this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock, page & this->pagemask);
-		if (!ffchars) {
-			if (!(ffchars = kmalloc (mtd->oobsize, GFP_KERNEL))) {
-				MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: "
-				          "No memory for padding array, "
-				          "need %d bytes", mtd->oobsize);
-				ret = -ENOMEM;
-				goto out;
-			}
-			memset(ffchars, 0xff, mtd->oobsize);
+	realpage = (int)(to >> chip->page_shift);
+	page = realpage & chip->pagemask;
+	blockmask = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
+
+	/* Invalidate the page cache, when we write to the cached page */
+	if (to <= (chip->pagebuf << chip->page_shift) &&
+	    (chip->pagebuf << chip->page_shift) < (to + ops->len))
+		chip->pagebuf = -1;
+
+	/* If we're not given explicit OOB data, let it be 0xFF */
+	if (likely(!oob))
+		memset(chip->oob_poi, 0xff, mtd->oobsize);
+
+	while(1) {
+		int bytes = mtd->writesize;
+		int cached = writelen > bytes && page != blockmask;
+		uint8_t *wbuf = buf;
+
+		/* Partial page write ? */
+		if (unlikely(column || writelen < (mtd->writesize - 1))) {
+			cached = 0;
+			bytes = min_t(int, bytes - column, (int) writelen);
+			chip->pagebuf = -1;
+			memset(chip->buffers->databuf, 0xff, mtd->writesize);
+			memcpy(&chip->buffers->databuf[column], buf, bytes);
+			wbuf = chip->buffers->databuf;
 		}
-		/* prepad 0xff for partial programming */
-		this->write_buf(mtd, ffchars, column);
-		/* write data */
-		this->write_buf(mtd, buf, len);
-		/* postpad 0xff for partial programming */
-		this->write_buf(mtd, ffchars, mtd->oobsize - (len+column));
-	} else {
-		/* Write out desired data */
-		this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock + column, page & this->pagemask);
-		/* write data */
-		this->write_buf(mtd, buf, len);
-	}
-	/* Send command to program the OOB data */
-	this->cmdfunc (mtd, NAND_CMD_PAGEPROG, -1, -1);
 
-	status = this->waitfunc (mtd, this, FL_WRITING);
+		if (unlikely(oob))
+			oob = nand_fill_oob(chip, oob, ops);
 
-	/* See if device thinks it succeeded */
-	if (status & 0x01) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: "
-		          "Failed write, page 0x%08x\n", page);
-		ret = -EIO;
-		goto out;
-	}
-	/* Return happy */
-	*retlen = len;
+		ret = chip->write_page(mtd, chip, wbuf, page, cached,
+				       (ops->mode == MTD_OOB_RAW));
+		if (ret)
+			break;
 
-#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
-	/* Send command to read back the data */
-	this->cmdfunc (mtd, NAND_CMD_READOOB, column, page & this->pagemask);
+		writelen -= bytes;
+		if (!writelen)
+			break;
 
-	if (this->verify_buf(mtd, buf, len)) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: "
-		          "Failed write verify, page 0x%08x\n", page);
-		ret = -EIO;
-		goto out;
+		column = 0;
+		buf += bytes;
+		realpage++;
+
+		page = realpage & chip->pagemask;
+		/* Check, if we cross a chip boundary */
+		if (!page) {
+			chipnr++;
+			chip->select_chip(mtd, -1);
+			chip->select_chip(mtd, chipnr);
+		}
 	}
-#endif
-	ret = 0;
-out:
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
 
+	ops->retlen = ops->len - writelen;
+	if (unlikely(oob))
+		ops->oobretlen = ops->ooblen;
 	return ret;
 }
 
-/* XXX U-BOOT XXX */
-#if 0
 /**
- * nand_writev - [MTD Interface] compabilty function for nand_writev_ecc
+ * nand_write - [MTD Interface] NAND write with ECC
  * @mtd:	MTD device structure
- * @vecs:	the iovectors to write
- * @count:	number of vectors
  * @to:		offset to write to
+ * @len:	number of bytes to write
  * @retlen:	pointer to variable to store the number of written bytes
+ * @buf:	the data to write
  *
- * NAND write with kvec. This just calls the ecc function
+ * NAND write with ECC
  */
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
-		loff_t to, size_t * retlen)
+static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
+			  size_t *retlen, const uint8_t *buf)
 {
-	return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL));
+	struct nand_chip *chip = mtd->priv;
+	int ret;
+
+	/* Do not allow reads past end of device */
+	if ((to + len) > mtd->size)
+		return -EINVAL;
+	if (!len)
+		return 0;
+
+	nand_get_device(chip, mtd, FL_WRITING);
+
+	chip->ops.len = len;
+	chip->ops.datbuf = (uint8_t *)buf;
+	chip->ops.oobbuf = NULL;
+
+	ret = nand_do_write_ops(mtd, to, &chip->ops);
+
+	*retlen = chip->ops.retlen;
+
+	nand_release_device(mtd);
+
+	return ret;
 }
 
 /**
- * nand_writev_ecc - [MTD Interface] write with iovec with ecc
+ * nand_do_write_oob - [MTD Interface] NAND write out-of-band
  * @mtd:	MTD device structure
- * @vecs:	the iovectors to write
- * @count:	number of vectors
  * @to:		offset to write to
- * @retlen:	pointer to variable to store the number of written bytes
- * @eccbuf:	filesystem supplied oob data buffer
- * @oobsel:	oob selection structure
+ * @ops:	oob operation description structure
  *
- * NAND write with iovec with ecc
+ * NAND write out-of-band
  */
-static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
-		loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel)
+static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
+			     struct mtd_oob_ops *ops)
 {
-	int i, page, len, total_len, ret = -EIO, written = 0, chipnr;
-	int oob, numpages, autoplace = 0, startpage;
-	struct nand_chip *this = mtd->priv;
-	int	ppblock = (1 << (this->phys_erase_shift - this->page_shift));
-	u_char *oobbuf, *bufstart;
-
-	/* Preset written len for early exit */
-	*retlen = 0;
+	int chipnr, page, status, len;
+	struct nand_chip *chip = mtd->priv;
 
-	/* Calculate total length of data */
-	total_len = 0;
-	for (i = 0; i < count; i++)
-		total_len += (int) vecs[i].iov_len;
+	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n",
+	          (unsigned int)to, (int)ops->ooblen);
 
-	MTDDEBUG (MTD_DEBUG_LEVEL3,
-	          "nand_writev: to = 0x%08x, len = %i, count = %ld\n",
-	          (unsigned int) to, (unsigned int) total_len, count);
+	if (ops->mode == MTD_OOB_AUTO)
+		len = chip->ecc.layout->oobavail;
+	else
+		len = mtd->oobsize;
 
 	/* Do not allow write past end of page */
-	if ((to + total_len) > mtd->size) {
-		MTDDEBUG (MTD_DEBUG_LEVEL0,
-		          "nand_writev: Attempted write past end of device\n");
+	if ((ops->ooboffs + ops->ooblen) > len) {
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: "
+		          "Attempt to write past end of page\n");
 		return -EINVAL;
 	}
 
-	/* reject writes, which are not page aligned */
-	if (NOTALIGNED (to) || NOTALIGNED(total_len)) {
-		printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
+	if (unlikely(ops->ooboffs >= len)) {
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		          "Attempt to start write outside oob\n");
 		return -EINVAL;
 	}
 
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_WRITING);
+	/* Do not allow reads past end of device */
+	if (unlikely(to >= mtd->size ||
+		     ops->ooboffs + ops->ooblen >
+			((mtd->size >> chip->page_shift) -
+			 (to >> chip->page_shift)) * len)) {
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		          "Attempt write beyond end of device\n");
+		return -EINVAL;
+	}
 
-	/* Get the current chip-nr */
-	chipnr = (int) (to >> this->chip_shift);
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
+	chipnr = (int)(to >> chip->chip_shift);
+	chip->select_chip(mtd, chipnr);
+
+	/* Shift to get page */
+	page = (int)(to >> chip->page_shift);
+
+	/*
+	 * Reset the chip. Some chips (like the Toshiba TC5832DC found in one
+	 * of my DiskOnChip 2000 test units) will clear the whole data page too
+	 * if we don't do this. I have no clue why, but I seem to have 'fixed'
+	 * it in the doc2000 driver in August 1999.  dwmw2.
+	 */
+	chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
 
 	/* Check, if it is write protected */
 	if (nand_check_wp(mtd))
-		goto out;
+		return -EROFS;
+
+	/* Invalidate the page cache, if we write to the cached page */
+	if (page == chip->pagebuf)
+		chip->pagebuf = -1;
 
-	/* if oobsel is NULL, use chip defaults */
-	if (oobsel == NULL)
-		oobsel = &mtd->oobinfo;
+	memset(chip->oob_poi, 0xff, mtd->oobsize);
+	nand_fill_oob(chip, ops->oobbuf, ops);
+	status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask);
+	memset(chip->oob_poi, 0xff, mtd->oobsize);
 
-	/* Autoplace of oob data ? Use the default placement scheme */
-	if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
-		oobsel = this->autooob;
-		autoplace = 1;
-	}
-	if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
-		autoplace = 1;
+	if (status)
+		return status;
 
-	/* Setup start page */
-	page = (int) (to >> this->page_shift);
-	/* Invalidate the page cache, if we write to the cached page */
-	if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift))
-		this->pagebuf = -1;
+	ops->oobretlen = ops->ooblen;
 
-	startpage = page & this->pagemask;
+	return 0;
+}
 
-	/* Loop until all kvec' data has been written */
-	len = 0;
-	while (count) {
-		/* If the given tuple is >= pagesize then
-		 * write it out from the iov
-		 */
-		if ((vecs->iov_len - len) >= mtd->oobblock) {
-			/* Calc number of pages we can write
-			 * out of this iov in one go */
-			numpages = (vecs->iov_len - len) >> this->page_shift;
-			/* Do not cross block boundaries */
-			numpages = min (ppblock - (startpage & (ppblock - 1)), numpages);
-			oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
-			bufstart = (u_char *)vecs->iov_base;
-			bufstart += len;
-			this->data_poi = bufstart;
-			oob = 0;
-			for (i = 1; i <= numpages; i++) {
-				/* Write one page. If this is the last page to write
-				 * then use the real pageprogram command, else select
-				 * cached programming if supported by the chip.
-				 */
-				ret = nand_write_page (mtd, this, page & this->pagemask,
-					&oobbuf[oob], oobsel, i != numpages);
-				if (ret)
-					goto out;
-				this->data_poi += mtd->oobblock;
-				len += mtd->oobblock;
-				oob += mtd->oobsize;
-				page++;
-			}
-			/* Check, if we have to switch to the next tuple */
-			if (len >= (int) vecs->iov_len) {
-				vecs++;
-				len = 0;
-				count--;
-			}
-		} else {
-			/* We must use the internal buffer, read data out of each
-			 * tuple until we have a full page to write
-			 */
-			int cnt = 0;
-			while (cnt < mtd->oobblock) {
-				if (vecs->iov_base != NULL && vecs->iov_len)
-					this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++];
-				/* Check, if we have to switch to the next tuple */
-				if (len >= (int) vecs->iov_len) {
-					vecs++;
-					len = 0;
-					count--;
-				}
-			}
-			this->pagebuf = page;
-			this->data_poi = this->data_buf;
-			bufstart = this->data_poi;
-			numpages = 1;
-			oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
-			ret = nand_write_page (mtd, this, page & this->pagemask,
-				oobbuf, oobsel, 0);
-			if (ret)
-				goto out;
-			page++;
-		}
+/**
+ * nand_write_oob - [MTD Interface] NAND write data and/or out-of-band
+ * @mtd:	MTD device structure
+ * @to:		offset to write to
+ * @ops:	oob operation description structure
+ */
+static int nand_write_oob(struct mtd_info *mtd, loff_t to,
+			  struct mtd_oob_ops *ops)
+{
+	struct nand_chip *chip = mtd->priv;
+	int ret = -ENOTSUPP;
 
-		this->data_poi = bufstart;
-		ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0);
-		if (ret)
-			goto out;
+	ops->retlen = 0;
 
-		written += mtd->oobblock * numpages;
-		/* All done ? */
-		if (!count)
-			break;
+	/* Do not allow writes past end of device */
+	if (ops->datbuf && (to + ops->len) > mtd->size) {
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
+		          "Attempt read beyond end of device\n");
+		return -EINVAL;
+	}
 
-		startpage = page & this->pagemask;
-		/* Check, if we cross a chip boundary */
-		if (!startpage) {
-			chipnr++;
-			this->select_chip(mtd, -1);
-			this->select_chip(mtd, chipnr);
-		}
+	nand_get_device(chip, mtd, FL_WRITING);
+
+	switch(ops->mode) {
+	case MTD_OOB_PLACE:
+	case MTD_OOB_AUTO:
+	case MTD_OOB_RAW:
+		break;
+
+	default:
+		goto out;
 	}
-	ret = 0;
-out:
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
 
-	*retlen = written;
+	if (!ops->datbuf)
+		ret = nand_do_write_oob(mtd, to, ops);
+	else
+		ret = nand_do_write_ops(mtd, to, ops);
+
+ out:
+	nand_release_device(mtd);
 	return ret;
 }
-#endif
 
 /**
  * single_erease_cmd - [GENERIC] NAND standard block erase command function
@@ -2094,12 +1990,12 @@ out:
  *
  * Standard erase command for NAND chips
  */
-static void single_erase_cmd (struct mtd_info *mtd, int page)
+static void single_erase_cmd(struct mtd_info *mtd, int page)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	/* Send commands to erase a block */
-	this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
-	this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
+	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
+	chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
 }
 
 /**
@@ -2110,15 +2006,15 @@ static void single_erase_cmd (struct mtd_info *mtd, int page)
  * AND multi block erase command function
  * Erase 4 consecutive blocks
  */
-static void multi_erase_cmd (struct mtd_info *mtd, int page)
+static void multi_erase_cmd(struct mtd_info *mtd, int page)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	/* Send commands to erase a block */
-	this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
-	this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
-	this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
-	this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
-	this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
+	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page++);
+	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page++);
+	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page++);
+	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
+	chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
 }
 
 /**
@@ -2128,35 +2024,39 @@ static void multi_erase_cmd (struct mtd_info *mtd, int page)
  *
  * Erase one ore more blocks
  */
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
+static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
-	return nand_erase_nand (mtd, instr, 0);
+	return nand_erase_nand(mtd, instr, 0);
 }
 
+#define BBT_PAGE_MASK	0xffffff3f
 /**
- * nand_erase_intern - [NAND Interface] erase block(s)
+ * nand_erase_nand - [Internal] erase block(s)
  * @mtd:	MTD device structure
  * @instr:	erase instruction
  * @allowbbt:	allow erasing the bbt area
  *
  * Erase one ore more blocks
  */
-int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt)
+int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
+		    int allowbbt)
 {
 	int page, len, status, pages_per_block, ret, chipnr;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
+	int rewrite_bbt[NAND_MAX_CHIPS]={0};
+	unsigned int bbt_masked_page = 0xffffffff;
 
 	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_erase: start = 0x%08x, len = %i\n",
 	          (unsigned int) instr->addr, (unsigned int) instr->len);
 
 	/* Start address must align on block boundary */
-	if (instr->addr & ((1 << this->phys_erase_shift) - 1)) {
+	if (instr->addr & ((1 << chip->phys_erase_shift) - 1)) {
 		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Unaligned address\n");
 		return -EINVAL;
 	}
 
 	/* Length must align on block boundary */
-	if (instr->len & ((1 << this->phys_erase_shift) - 1)) {
+	if (instr->len & ((1 << chip->phys_erase_shift) - 1)) {
 		MTDDEBUG (MTD_DEBUG_LEVEL0,
 		          "nand_erase: Length not block aligned\n");
 		return -EINVAL;
@@ -2172,19 +2072,18 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
 	instr->fail_addr = 0xffffffff;
 
 	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_ERASING);
+	nand_get_device(chip, mtd, FL_ERASING);
 
 	/* Shift to get first page */
-	page = (int) (instr->addr >> this->page_shift);
-	chipnr = (int) (instr->addr >> this->chip_shift);
+	page = (int)(instr->addr >> chip->page_shift);
+	chipnr = (int)(instr->addr >> chip->chip_shift);
 
 	/* Calculate pages in each block */
-	pages_per_block = 1 << (this->phys_erase_shift - this->page_shift);
-
+	pages_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
+	
 	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
+	chip->select_chip(mtd, chipnr);
 
-	/* Check the WP bit */
 	/* Check, if it is write protected */
 	if (nand_check_wp(mtd)) {
 		MTDDEBUG (MTD_DEBUG_LEVEL0,
@@ -2193,52 +2092,92 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
 		goto erase_exit;
 	}
 
+	/*
+	 * If BBT requires refresh, set the BBT page mask to see if the BBT
+	 * should be rewritten. Otherwise the mask is set to 0xffffffff which
+	 * can not be matched. This is also done when the bbt is actually
+	 * erased to avoid recusrsive updates
+	 */
+	if (chip->options & BBT_AUTO_REFRESH && !allowbbt)
+		bbt_masked_page = chip->bbt_td->pages[chipnr] & BBT_PAGE_MASK;
+
 	/* Loop through the pages */
 	len = instr->len;
 
 	instr->state = MTD_ERASING;
 
 	while (len) {
-#ifndef NAND_ALLOW_ERASE_ALL
-		/* Check if we have a bad block, we do not erase bad blocks ! */
-		if (nand_block_checkbad(mtd, ((loff_t) page) << this->page_shift, 0, allowbbt)) {
-			printk (KERN_WARNING "nand_erase: attempt to erase a bad block at page 0x%08x\n", page);
+		/*
+		 * heck if we have a bad block, we do not erase bad blocks !
+		 */
+		if (nand_block_checkbad(mtd, ((loff_t) page) <<
+					chip->page_shift, 0, allowbbt)) {
+			printk(KERN_WARNING "nand_erase: attempt to erase a "
+			       "bad block at page 0x%08x\n", page);
 			instr->state = MTD_ERASE_FAILED;
 			goto erase_exit;
 		}
-#endif
-		/* Invalidate the page cache, if we erase the block which contains
-		   the current cached page */
-		if (page <= this->pagebuf && this->pagebuf < (page + pages_per_block))
-			this->pagebuf = -1;
 
-		this->erase_cmd (mtd, page & this->pagemask);
+		/*
+		 * Invalidate the page cache, if we erase the block which
+		 * contains the current cached page
+		 */
+		if (page <= chip->pagebuf && chip->pagebuf <
+		    (page + pages_per_block))
+			chip->pagebuf = -1;
 
-		status = this->waitfunc (mtd, this, FL_ERASING);
+		chip->erase_cmd(mtd, page & chip->pagemask);
+
+		status = chip->waitfunc(mtd, chip);
+
+		/*
+		 * See if operation failed and additional status checks are
+		 * available
+		 */
+		if ((status & NAND_STATUS_FAIL) && (chip->errstat))
+			status = chip->errstat(mtd, chip, FL_ERASING,
+					       status, page);
 
 		/* See if block erase succeeded */
-		if (status & 0x01) {
+		if (status & NAND_STATUS_FAIL) {
 			MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_erase: "
 			          "Failed erase, page 0x%08x\n", page);
 			instr->state = MTD_ERASE_FAILED;
-			instr->fail_addr = (page << this->page_shift);
+			instr->fail_addr = (page << chip->page_shift);
 			goto erase_exit;
 		}
 
+		/*
+		 * If BBT requires refresh, set the BBT rewrite flag to the
+		 * page being erased
+		 */
+		if (bbt_masked_page != 0xffffffff &&
+		    (page & BBT_PAGE_MASK) == bbt_masked_page)
+			    rewrite_bbt[chipnr] = (page << chip->page_shift);
+
 		/* Increment page address and decrement length */
-		len -= (1 << this->phys_erase_shift);
+		len -= (1 << chip->phys_erase_shift);
 		page += pages_per_block;
 
 		/* Check, if we cross a chip boundary */
-		if (len && !(page & this->pagemask)) {
+		if (len && !(page & chip->pagemask)) {
 			chipnr++;
-			this->select_chip(mtd, -1);
-			this->select_chip(mtd, chipnr);
+			chip->select_chip(mtd, -1);
+			chip->select_chip(mtd, chipnr);
+
+			/*
+			 * If BBT requires refresh and BBT-PERCHIP, set the BBT
+			 * page mask to see if this BBT should be rewritten
+			 */
+			if (bbt_masked_page != 0xffffffff &&
+			    (chip->bbt_td->options & NAND_BBT_PERCHIP))
+				bbt_masked_page = chip->bbt_td->pages[chipnr] &
+					BBT_PAGE_MASK;
 		}
 	}
 	instr->state = MTD_ERASE_DONE;
 
-erase_exit:
+ erase_exit:
 
 	ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
 	/* Do call back function */
@@ -2248,6 +2187,23 @@ erase_exit:
 	/* Deselect and wake up anyone waiting on the device */
 	nand_release_device(mtd);
 
+	/*
+	 * If BBT requires refresh and erase was successful, rewrite any
+	 * selected bad block tables
+	 */
+	if (bbt_masked_page == 0xffffffff || ret)
+		return ret;
+
+	for (chipnr = 0; chipnr < chip->numchips; chipnr++) {
+		if (!rewrite_bbt[chipnr])
+			continue;
+		/* update the BBT for chip */
+		MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt "
+		          "(%d:0x%0x 0x%0x)\n", chipnr, rewrite_bbt[chipnr],
+		          chip->bbt_td->pages[chipnr]);
+		nand_update_bbt(mtd, rewrite_bbt[chipnr]);
+	}
+
 	/* Return more or less happy */
 	return ret;
 }
@@ -2258,41 +2214,40 @@ erase_exit:
  *
  * Sync is actually a wait for chip ready function
  */
-static void nand_sync (struct mtd_info *mtd)
+static void nand_sync(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
 	MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_sync: called\n");
 
 	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_SYNCING);
+	nand_get_device(chip, mtd, FL_SYNCING);
 	/* Release it and go back */
-	nand_release_device (mtd);
+	nand_release_device(mtd);
 }
 
-
 /**
- * nand_block_isbad - [MTD Interface] Check whether the block at the given offset is bad
+ * nand_block_isbad - [MTD Interface] Check if block at offset is bad
  * @mtd:	MTD device structure
- * @ofs:	offset relative to mtd start
+ * @offs:	offset relative to mtd start
  */
-static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs)
+static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
 {
 	/* Check for invalid offset */
-	if (ofs > mtd->size)
+	if (offs > mtd->size)
 		return -EINVAL;
 
-	return nand_block_checkbad (mtd, ofs, 1, 0);
+	return nand_block_checkbad(mtd, offs, 1, 0);
 }
 
 /**
- * nand_block_markbad - [MTD Interface] Mark the block at the given offset as bad
+ * nand_block_markbad - [MTD Interface] Mark block at the given offset as bad
  * @mtd:	MTD device structure
  * @ofs:	offset relative to mtd start
  */
-static int nand_block_markbad (struct mtd_info *mtd, loff_t ofs)
+static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 	int ret;
 
 	if ((ret = nand_block_isbad(mtd, ofs))) {
@@ -2302,419 +2257,553 @@ static int nand_block_markbad (struct mtd_info *mtd, loff_t ofs)
 		return ret;
 	}
 
-	return this->block_markbad(mtd, ofs);
+	return chip->block_markbad(mtd, ofs);
 }
 
 /**
- * nand_scan - [NAND Interface] Scan for the NAND device
+ * nand_suspend - [MTD Interface] Suspend the NAND flash
  * @mtd:	MTD device structure
- * @maxchips:	Number of chips to scan for
- *
- * This fills out all the not initialized function pointers
- * with the defaults.
- * The flash ID is read and the mtd/chip structures are
- * filled with the appropriate values. Buffers are allocated if
- * they are not provided by the board driver
- *
  */
-int nand_scan (struct mtd_info *mtd, int maxchips)
+static int nand_suspend(struct mtd_info *mtd)
 {
-	int i, j, nand_maf_id, nand_dev_id, busw;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
-	/* Get buswidth to select the correct functions*/
-	busw = this->options & NAND_BUSWIDTH_16;
+	return nand_get_device(chip, mtd, FL_PM_SUSPENDED);
+}
+
+/**
+ * nand_resume - [MTD Interface] Resume the NAND flash
+ * @mtd:	MTD device structure
+ */
+static void nand_resume(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = mtd->priv;
+
+	if (chip->state == FL_PM_SUSPENDED)
+		nand_release_device(mtd);
+	else
+		printk(KERN_ERR "nand_resume() called for a chip which is not "
+		       "in suspended state\n");
+}
 
+/*
+ * Set default functions
+ */
+static void nand_set_defaults(struct nand_chip *chip, int busw)
+{
 	/* check for proper chip_delay setup, set 20us if not */
-	if (!this->chip_delay)
-		this->chip_delay = 20;
+	if (!chip->chip_delay)
+		chip->chip_delay = 20;
 
 	/* check, if a user supplied command function given */
-	if (this->cmdfunc == NULL)
-		this->cmdfunc = nand_command;
+	if (chip->cmdfunc == NULL)
+		chip->cmdfunc = nand_command;
 
 	/* check, if a user supplied wait function given */
-	if (this->waitfunc == NULL)
-		this->waitfunc = nand_wait;
-
-	if (!this->select_chip)
-		this->select_chip = nand_select_chip;
-	if (!this->write_byte)
-		this->write_byte = busw ? nand_write_byte16 : nand_write_byte;
-	if (!this->read_byte)
-		this->read_byte = busw ? nand_read_byte16 : nand_read_byte;
-	if (!this->write_word)
-		this->write_word = nand_write_word;
-	if (!this->read_word)
-		this->read_word = nand_read_word;
-	if (!this->block_bad)
-		this->block_bad = nand_block_bad;
-	if (!this->block_markbad)
-		this->block_markbad = nand_default_block_markbad;
-	if (!this->write_buf)
-		this->write_buf = busw ? nand_write_buf16 : nand_write_buf;
-	if (!this->read_buf)
-		this->read_buf = busw ? nand_read_buf16 : nand_read_buf;
-	if (!this->verify_buf)
-		this->verify_buf = busw ? nand_verify_buf16 : nand_verify_buf;
-	if (!this->scan_bbt)
-		this->scan_bbt = nand_default_bbt;
+	if (chip->waitfunc == NULL)
+		chip->waitfunc = nand_wait;
+
+	if (!chip->select_chip)
+		chip->select_chip = nand_select_chip;
+	if (!chip->read_byte)
+		chip->read_byte = busw ? nand_read_byte16 : nand_read_byte;
+	if (!chip->read_word)
+		chip->read_word = nand_read_word;
+	if (!chip->block_bad)
+		chip->block_bad = nand_block_bad;
+	if (!chip->block_markbad)
+		chip->block_markbad = nand_default_block_markbad;
+	if (!chip->write_buf)
+		chip->write_buf = busw ? nand_write_buf16 : nand_write_buf;
+	if (!chip->read_buf)
+		chip->read_buf = busw ? nand_read_buf16 : nand_read_buf;
+	if (!chip->verify_buf)
+		chip->verify_buf = busw ? nand_verify_buf16 : nand_verify_buf;
+	if (!chip->scan_bbt)
+		chip->scan_bbt = nand_default_bbt;
+
+	if (!chip->controller) {
+		chip->controller = &chip->hwcontrol;
+
+		/* XXX U-BOOT XXX */
+#if 0
+		spin_lock_init(&chip->controller->lock);
+		init_waitqueue_head(&chip->controller->wq);
+#endif
+	}
+
+}
+
+/*
+ * Get the flash and manufacturer id and lookup if the type is supported
+ */
+static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
+						  struct nand_chip *chip,
+						  int busw, int *maf_id)
+{
+	struct nand_flash_dev *type = NULL;
+	int i, dev_id, maf_idx;
 
 	/* Select the device */
-	this->select_chip(mtd, 0);
+	chip->select_chip(mtd, 0);
 
 	/* Send the command for reading device ID */
-	this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
+	chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
 
 	/* Read manufacturer and device IDs */
-	nand_maf_id = this->read_byte(mtd);
-	nand_dev_id = this->read_byte(mtd);
+	*maf_id = chip->read_byte(mtd);
+	dev_id = chip->read_byte(mtd);
 
-	/* Print and store flash device information */
+	/* Lookup the flash id */
 	for (i = 0; nand_flash_ids[i].name != NULL; i++) {
+		if (dev_id == nand_flash_ids[i].id) {
+			type =  &nand_flash_ids[i];
+			break;
+		}
+	}
 
-		if (nand_dev_id != nand_flash_ids[i].id)
-			continue;
+	if (!type)
+		return ERR_PTR(-ENODEV);
+
+	if (!mtd->name)
+		mtd->name = type->name;
+
+	chip->chipsize = type->chipsize << 20;
+
+	/* Newer devices have all the information in additional id bytes */
+	if (!type->pagesize) {
+		int extid;
+		/* The 3rd id byte holds MLC / multichip data */
+		chip->cellinfo = chip->read_byte(mtd);
+		/* The 4th id byte is the important one */
+		extid = chip->read_byte(mtd);
+		/* Calc pagesize */
+		mtd->writesize = 1024 << (extid & 0x3);
+		extid >>= 2;
+		/* Calc oobsize */
+		mtd->oobsize = (8 << (extid & 0x01)) * (mtd->writesize >> 9);
+		extid >>= 2;
+		/* Calc blocksize. Blocksize is multiples of 64KiB */
+		mtd->erasesize = (64 * 1024) << (extid & 0x03);
+		extid >>= 2;
+		/* Get buswidth information */
+		busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
 
-		if (!mtd->name) mtd->name = nand_flash_ids[i].name;
-		this->chipsize = nand_flash_ids[i].chipsize << 20;
-
-		/* New devices have all the information in additional id bytes */
-		if (!nand_flash_ids[i].pagesize) {
-			int extid;
-			/* The 3rd id byte contains non relevant data ATM */
-			extid = this->read_byte(mtd);
-			/* The 4th id byte is the important one */
-			extid = this->read_byte(mtd);
-			/* Calc pagesize */
-			mtd->oobblock = 1024 << (extid & 0x3);
-			extid >>= 2;
-			/* Calc oobsize */
-			mtd->oobsize = (8 << (extid & 0x01)) * (mtd->oobblock / 512);
-			extid >>= 2;
-			/* Calc blocksize. Blocksize is multiples of 64KiB */
-			mtd->erasesize = (64 * 1024)  << (extid & 0x03);
-			extid >>= 2;
-			/* Get buswidth information */
-			busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
+	} else {
+		/*
+		 * Old devices have chip data hardcoded in the device id table
+		 */
+		mtd->erasesize = type->erasesize;
+		mtd->writesize = type->pagesize;
+		mtd->oobsize = mtd->writesize / 32;
+		busw = type->options & NAND_BUSWIDTH_16;
+	}
 
-		} else {
-			/* Old devices have this data hardcoded in the
-			 * device id table */
-			mtd->erasesize = nand_flash_ids[i].erasesize;
-			mtd->oobblock = nand_flash_ids[i].pagesize;
-			mtd->oobsize = mtd->oobblock / 32;
-			busw = nand_flash_ids[i].options & NAND_BUSWIDTH_16;
-		}
+	/* Try to identify manufacturer */
+	for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_idx++) {
+		if (nand_manuf_ids[maf_idx].id == *maf_id)
+			break;
+	}
 
-		/* Check, if buswidth is correct. Hardware drivers should set
-		 * this correct ! */
-		if (busw != (this->options & NAND_BUSWIDTH_16)) {
-			printk (KERN_INFO "NAND device: Manufacturer ID:"
-				" 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
-				nand_manuf_ids[i].name , mtd->name);
-			printk (KERN_WARNING
-				"NAND bus width %d instead %d bit\n",
-					(this->options & NAND_BUSWIDTH_16) ? 16 : 8,
-					busw ? 16 : 8);
-			this->select_chip(mtd, -1);
-			return 1;
-		}
+	/*
+	 * Check, if buswidth is correct. Hardware drivers should set
+	 * chip correct !
+	 */
+	if (busw != (chip->options & NAND_BUSWIDTH_16)) {
+		printk(KERN_INFO "NAND device: Manufacturer ID:"
+		       " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id,
+		       dev_id, nand_manuf_ids[maf_idx].name, mtd->name);
+		printk(KERN_WARNING "NAND bus width %d instead %d bit\n",
+		       (chip->options & NAND_BUSWIDTH_16) ? 16 : 8,
+		       busw ? 16 : 8);
+		return ERR_PTR(-EINVAL);
+	}
 
-		/* Calculate the address shift from the page size */
-		this->page_shift = ffs(mtd->oobblock) - 1;
-		this->bbt_erase_shift = this->phys_erase_shift = ffs(mtd->erasesize) - 1;
-		this->chip_shift = ffs(this->chipsize) - 1;
-
-		/* Set the bad block position */
-		this->badblockpos = mtd->oobblock > 512 ?
-			NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
-
-		/* Get chip options, preserve non chip based options */
-		this->options &= ~NAND_CHIPOPTIONS_MSK;
-		this->options |= nand_flash_ids[i].options & NAND_CHIPOPTIONS_MSK;
-		/* Set this as a default. Board drivers can override it, if neccecary */
-		this->options |= NAND_NO_AUTOINCR;
-		/* Check if this is a not a samsung device. Do not clear the options
-		 * for chips which are not having an extended id.
-		 */
-		if (nand_maf_id != NAND_MFR_SAMSUNG && !nand_flash_ids[i].pagesize)
-			this->options &= ~NAND_SAMSUNG_LP_OPTIONS;
+	/* Calculate the address shift from the page size */
+	chip->page_shift = ffs(mtd->writesize) - 1;
+	/* Convert chipsize to number of pages per chip -1. */
+	chip->pagemask = (chip->chipsize >> chip->page_shift) - 1;
 
-		/* Check for AND chips with 4 page planes */
-		if (this->options & NAND_4PAGE_ARRAY)
-			this->erase_cmd = multi_erase_cmd;
-		else
-			this->erase_cmd = single_erase_cmd;
+	chip->bbt_erase_shift = chip->phys_erase_shift =
+		ffs(mtd->erasesize) - 1;
+	chip->chip_shift = ffs(chip->chipsize) - 1;
 
-		/* Do not replace user supplied command function ! */
-		if (mtd->oobblock > 512 && this->cmdfunc == nand_command)
-			this->cmdfunc = nand_command_lp;
+	/* Set the bad block position */
+	chip->badblockpos = mtd->writesize > 512 ?
+		NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
 
-		/* Try to identify manufacturer */
-		for (j = 0; nand_manuf_ids[j].id != 0x0; j++) {
-			if (nand_manuf_ids[j].id == nand_maf_id)
-				break;
-		}
-		break;
-	}
+	/* Get chip options, preserve non chip based options */
+	chip->options &= ~NAND_CHIPOPTIONS_MSK;
+	chip->options |= type->options & NAND_CHIPOPTIONS_MSK;
 
-	if (!nand_flash_ids[i].name) {
-#ifndef CFG_NAND_QUIET_TEST
-		printk (KERN_WARNING "No NAND device found!!!\n");
-#endif
-		this->select_chip(mtd, -1);
-		return 1;
-	}
+	/*
+	 * Set chip as a default. Board drivers can override it, if necessary
+	 */
+	chip->options |= NAND_NO_AUTOINCR;
 
-	for (i=1; i < maxchips; i++) {
-		this->select_chip(mtd, i);
+	/* Check if chip is a not a samsung device. Do not clear the
+	 * options for chips which are not having an extended id.
+	 */
+	if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize)
+		chip->options &= ~NAND_SAMSUNG_LP_OPTIONS;
 
-		/* Send the command for reading device ID */
-		this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
+	/* Check for AND chips with 4 page planes */
+	if (chip->options & NAND_4PAGE_ARRAY)
+		chip->erase_cmd = multi_erase_cmd;
+	else
+		chip->erase_cmd = single_erase_cmd;
+
+	/* Do not replace user supplied command function ! */
+	if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
+		chip->cmdfunc = nand_command_lp;
+
+	printk(KERN_INFO "NAND device: Manufacturer ID:"
+	       " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, dev_id,
+	       nand_manuf_ids[maf_idx].name, type->name);
 
+	return type;
+}
+
+/**
+ * nand_scan_ident - [NAND Interface] Scan for the NAND device
+ * @mtd:	     MTD device structure
+ * @maxchips:	     Number of chips to scan for
+ *
+ * This is the first phase of the normal nand_scan() function. It
+ * reads the flash ID and sets up MTD fields accordingly.
+ *
+ * The mtd->owner field must be set to the module of the caller.
+ */
+int nand_scan_ident(struct mtd_info *mtd, int maxchips)
+{
+	int i, busw, nand_maf_id;
+	struct nand_chip *chip = mtd->priv;
+	struct nand_flash_dev *type;
+
+	/* Get buswidth to select the correct functions */
+	busw = chip->options & NAND_BUSWIDTH_16;
+	/* Set the default functions */
+	nand_set_defaults(chip, busw);
+
+	/* Read the flash type */
+	type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id);
+
+	if (IS_ERR(type)) {
+		printk(KERN_WARNING "No NAND device found!!!\n");
+		chip->select_chip(mtd, -1);
+		return PTR_ERR(type);
+	}
+
+	/* Check for a chip array */
+	for (i = 1; i < maxchips; i++) {
+		chip->select_chip(mtd, i);
+		/* Send the command for reading device ID */
+		chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
 		/* Read manufacturer and device IDs */
-		if (nand_maf_id != this->read_byte(mtd) ||
-		    nand_dev_id != this->read_byte(mtd))
+		if (nand_maf_id != chip->read_byte(mtd) ||
+		    type->id != chip->read_byte(mtd))
 			break;
 	}
 	if (i > 1)
 		printk(KERN_INFO "%d NAND chips detected\n", i);
 
-	/* Allocate buffers, if neccecary */
-	if (!this->oob_buf) {
-		size_t len;
-		len = mtd->oobsize << (this->phys_erase_shift - this->page_shift);
-		this->oob_buf = kmalloc (len, GFP_KERNEL);
-		if (!this->oob_buf) {
-			printk (KERN_ERR "nand_scan(): Cannot allocate oob_buf\n");
-			return -ENOMEM;
-		}
-		this->options |= NAND_OOBBUF_ALLOC;
-	}
+	/* Store the number of chips and calc total size for mtd */
+	chip->numchips = i;
+	mtd->size = i * chip->chipsize;
 
-	if (!this->data_buf) {
-		size_t len;
-		len = mtd->oobblock + mtd->oobsize;
-		this->data_buf = kmalloc (len, GFP_KERNEL);
-		if (!this->data_buf) {
-			if (this->options & NAND_OOBBUF_ALLOC)
-				kfree (this->oob_buf);
-			printk (KERN_ERR "nand_scan(): Cannot allocate data_buf\n");
-			return -ENOMEM;
-		}
-		this->options |= NAND_DATABUF_ALLOC;
-	}
+	return 0;
+}
 
-	/* Store the number of chips and calc total size for mtd */
-	this->numchips = i;
-	mtd->size = i * this->chipsize;
-	/* Convert chipsize to number of pages per chip -1. */
-	this->pagemask = (this->chipsize >> this->page_shift) - 1;
-	/* Preset the internal oob buffer */
-	memset(this->oob_buf, 0xff, mtd->oobsize << (this->phys_erase_shift - this->page_shift));
-
-	/* If no default placement scheme is given, select an
-	 * appropriate one */
-	if (!this->autooob) {
-		/* Select the appropriate default oob placement scheme for
-		 * placement agnostic filesystems */
+
+/**
+ * nand_scan_tail - [NAND Interface] Scan for the NAND device
+ * @mtd:	    MTD device structure
+ * @maxchips:	    Number of chips to scan for
+ *
+ * This is the second phase of the normal nand_scan() function. It
+ * fills out all the uninitialized function pointers with the defaults
+ * and scans for a bad block table if appropriate.
+ */
+int nand_scan_tail(struct mtd_info *mtd)
+{
+	int i;
+	struct nand_chip *chip = mtd->priv;
+
+	if (!(chip->options & NAND_OWN_BUFFERS))
+		chip->buffers = kmalloc(sizeof(*chip->buffers), GFP_KERNEL);
+	if (!chip->buffers)
+		return -ENOMEM;
+
+	/* Set the internal oob buffer location, just after the page data */
+	chip->oob_poi = chip->buffers->databuf + mtd->writesize;
+
+	/*
+	 * If no default placement scheme is given, select an appropriate one
+	 */
+	if (!chip->ecc.layout) {
 		switch (mtd->oobsize) {
 		case 8:
-			this->autooob = &nand_oob_8;
+			chip->ecc.layout = &nand_oob_8;
 			break;
 		case 16:
-			this->autooob = &nand_oob_16;
+			chip->ecc.layout = &nand_oob_16;
 			break;
 		case 64:
-			this->autooob = &nand_oob_64;
+			chip->ecc.layout = &nand_oob_64;
 			break;
 		case 128:
-			this->autooob = &nand_oob_128;
+			chip->ecc.layout = &nand_oob_128;
 			break;
 		default:
-			printk (KERN_WARNING "No oob scheme defined for oobsize %d\n",
-				mtd->oobsize);
-/*			BUG(); */
+			printk(KERN_WARNING "No oob scheme defined for "
+			       "oobsize %d\n", mtd->oobsize);
+//			BUG();
 		}
 	}
 
-	/* The number of bytes available for the filesystem to place fs dependend
-	 * oob data */
-	mtd->oobavail = 0;
-	for (i=0; this->autooob->oobfree[i][1]; i++)
-		mtd->oobavail += this->autooob->oobfree[i][1];
+	if (!chip->write_page)
+		chip->write_page = nand_write_page;
 
 	/*
-	 * check ECC mode, default to software
-	 * if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize
-	 * fallback to software ECC
-	*/
-	this->eccsize = 256;	/* set default eccsize */
-	this->eccbytes = 3;
-
-	switch (this->eccmode) {
-	case NAND_ECC_HW12_2048:
-		if (mtd->oobblock < 2048) {
-			printk(KERN_WARNING "2048 byte HW ECC not possible on %d byte page size, fallback to SW ECC\n",
-			       mtd->oobblock);
-			this->eccmode = NAND_ECC_SOFT;
-			this->calculate_ecc = nand_calculate_ecc;
-			this->correct_data = nand_correct_data;
-		} else
-			this->eccsize = 2048;
-		break;
-
-	case NAND_ECC_HW3_512:
-	case NAND_ECC_HW6_512:
-	case NAND_ECC_HW8_512:
-		if (mtd->oobblock == 256) {
-			printk (KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n");
-			this->eccmode = NAND_ECC_SOFT;
-			this->calculate_ecc = nand_calculate_ecc;
-			this->correct_data = nand_correct_data;
-		} else
-			this->eccsize = 512; /* set eccsize to 512 */
-		break;
+	 * check ECC mode, default to software if 3byte/512byte hardware ECC is
+	 * selected and we have 256 byte pagesize fallback to software ECC
+	 */
+	if (!chip->ecc.read_page_raw)
+		chip->ecc.read_page_raw = nand_read_page_raw;
+	if (!chip->ecc.write_page_raw)
+		chip->ecc.write_page_raw = nand_write_page_raw;
+
+	switch (chip->ecc.mode) {
+	case NAND_ECC_HW:
+		/* Use standard hwecc read page function ? */
+		if (!chip->ecc.read_page)
+			chip->ecc.read_page = nand_read_page_hwecc;
+		if (!chip->ecc.write_page)
+			chip->ecc.write_page = nand_write_page_hwecc;
+		if (!chip->ecc.read_oob)
+			chip->ecc.read_oob = nand_read_oob_std;
+		if (!chip->ecc.write_oob)
+			chip->ecc.write_oob = nand_write_oob_std;
+
+	case NAND_ECC_HW_SYNDROME:
+		if (!chip->ecc.calculate || !chip->ecc.correct ||
+		    !chip->ecc.hwctl) {
+			printk(KERN_WARNING "No ECC functions supplied, "
+			       "Hardware ECC not possible\n");
+			BUG();
+		}
+		/* Use standard syndrome read/write page function ? */
+		if (!chip->ecc.read_page)
+			chip->ecc.read_page = nand_read_page_syndrome;
+		if (!chip->ecc.write_page)
+			chip->ecc.write_page = nand_write_page_syndrome;
+		if (!chip->ecc.read_oob)
+			chip->ecc.read_oob = nand_read_oob_syndrome;
+		if (!chip->ecc.write_oob)
+			chip->ecc.write_oob = nand_write_oob_syndrome;
+
+		if (mtd->writesize >= chip->ecc.size)
+			break;
+		printk(KERN_WARNING "%d byte HW ECC not possible on "
+		       "%d byte page size, fallback to SW ECC\n",
+		       chip->ecc.size, mtd->writesize);
+		chip->ecc.mode = NAND_ECC_SOFT;
 
-	case NAND_ECC_HW3_256:
+	case NAND_ECC_SOFT:
+		chip->ecc.calculate = nand_calculate_ecc;
+		chip->ecc.correct = nand_correct_data;
+		chip->ecc.read_page = nand_read_page_swecc;
+		chip->ecc.write_page = nand_write_page_swecc;
+		chip->ecc.read_oob = nand_read_oob_std;
+		chip->ecc.write_oob = nand_write_oob_std;
+		chip->ecc.size = 256;
+		chip->ecc.bytes = 3;
 		break;
 
 	case NAND_ECC_NONE:
-		printk (KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n");
-		this->eccmode = NAND_ECC_NONE;
-		break;
-
-	case NAND_ECC_SOFT:
-		this->calculate_ecc = nand_calculate_ecc;
-		this->correct_data = nand_correct_data;
+		printk(KERN_WARNING "NAND_ECC_NONE selected by board driver. "
+		       "This is not recommended !!\n");
+		chip->ecc.read_page = nand_read_page_raw;
+		chip->ecc.write_page = nand_write_page_raw;
+		chip->ecc.read_oob = nand_read_oob_std;
+		chip->ecc.write_oob = nand_write_oob_std;
+		chip->ecc.size = mtd->writesize;
+		chip->ecc.bytes = 0;
 		break;
 
 	default:
-		printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode);
-/*		BUG(); */
-	}
-
-	/* Check hardware ecc function availability and adjust number of ecc bytes per
-	 * calculation step
-	*/
-	switch (this->eccmode) {
-	case NAND_ECC_HW12_2048:
-		this->eccbytes += 4;
-	case NAND_ECC_HW8_512:
-		this->eccbytes += 2;
-	case NAND_ECC_HW6_512:
-		this->eccbytes += 3;
-	case NAND_ECC_HW3_512:
-	case NAND_ECC_HW3_256:
-		if (this->calculate_ecc && this->correct_data && this->enable_hwecc)
-			break;
-		printk (KERN_WARNING "No ECC functions supplied, Hardware ECC not possible\n");
-/*		BUG();	*/
+		printk(KERN_WARNING "Invalid NAND_ECC_MODE %d\n",
+		       chip->ecc.mode);
+		BUG();
 	}
 
-	mtd->eccsize = this->eccsize;
+	/*
+	 * The number of bytes available for a client to place data into
+	 * the out of band area
+	 */
+	chip->ecc.layout->oobavail = 0;
+	for (i = 0; chip->ecc.layout->oobfree[i].length; i++)
+		chip->ecc.layout->oobavail +=
+			chip->ecc.layout->oobfree[i].length;
+	mtd->oobavail = chip->ecc.layout->oobavail;
 
-	/* Set the number of read / write steps for one page to ensure ECC generation */
-	switch (this->eccmode) {
-	case NAND_ECC_HW12_2048:
-		this->eccsteps = mtd->oobblock / 2048;
-		break;
-	case NAND_ECC_HW3_512:
-	case NAND_ECC_HW6_512:
-	case NAND_ECC_HW8_512:
-		this->eccsteps = mtd->oobblock / 512;
-		break;
-	case NAND_ECC_HW3_256:
-	case NAND_ECC_SOFT:
-		this->eccsteps = mtd->oobblock / 256;
-		break;
+	/*
+	 * Set the number of read / write steps for one page depending on ECC
+	 * mode
+	 */
+	chip->ecc.steps = mtd->writesize / chip->ecc.size;
+	if(chip->ecc.steps * chip->ecc.size != mtd->writesize) {
+		printk(KERN_WARNING "Invalid ecc parameters\n");
+		BUG();
+	}
+	chip->ecc.total = chip->ecc.steps * chip->ecc.bytes;
 
-	case NAND_ECC_NONE:
-		this->eccsteps = 1;
-		break;
+	/*
+	 * Allow subpage writes up to ecc.steps. Not possible for MLC
+	 * FLASH.
+	 */
+	if (!(chip->options & NAND_NO_SUBPAGE_WRITE) &&
+	    !(chip->cellinfo & NAND_CI_CELLTYPE_MSK)) {
+		switch(chip->ecc.steps) {
+		case 2:
+			mtd->subpage_sft = 1;
+			break;
+		case 4:
+		case 8:
+			mtd->subpage_sft = 2;
+			break;
+		}
 	}
+	chip->subpagesize = mtd->writesize >> mtd->subpage_sft;
 
-/* XXX U-BOOT XXX */
-#if 0
-	/* Initialize state, waitqueue and spinlock */
-	this->state = FL_READY;
-	init_waitqueue_head (&this->wq);
-	spin_lock_init (&this->chip_lock);
-#endif
+	/* Initialize state */
+	chip->state = FL_READY;
 
 	/* De-select the device */
-	this->select_chip(mtd, -1);
+	chip->select_chip(mtd, -1);
 
 	/* Invalidate the pagebuffer reference */
-	this->pagebuf = -1;
+	chip->pagebuf = -1;
 
 	/* Fill in remaining MTD driver data */
 	mtd->type = MTD_NANDFLASH;
-	mtd->flags = MTD_CAP_NANDFLASH | MTD_ECC;
-	mtd->ecctype = MTD_ECC_SW;
+	mtd->flags = MTD_CAP_NANDFLASH;
 	mtd->erase = nand_erase;
 	mtd->point = NULL;
 	mtd->unpoint = NULL;
 	mtd->read = nand_read;
 	mtd->write = nand_write;
-	mtd->read_ecc = nand_read_ecc;
-	mtd->write_ecc = nand_write_ecc;
 	mtd->read_oob = nand_read_oob;
 	mtd->write_oob = nand_write_oob;
-/* XXX U-BOOT XXX */
-#if 0
-	mtd->readv = NULL;
-	mtd->writev = nand_writev;
-	mtd->writev_ecc = nand_writev_ecc;
-#endif
 	mtd->sync = nand_sync;
-/* XXX U-BOOT XXX */
-#if 0
 	mtd->lock = NULL;
 	mtd->unlock = NULL;
-	mtd->suspend = NULL;
-	mtd->resume = NULL;
-#endif
+	mtd->suspend = nand_suspend;
+	mtd->resume = nand_resume;
 	mtd->block_isbad = nand_block_isbad;
 	mtd->block_markbad = nand_block_markbad;
 
-	/* and make the autooob the default one */
-	memcpy(&mtd->oobinfo, this->autooob, sizeof(mtd->oobinfo));
-/* XXX U-BOOT XXX */
+	/* propagate ecc.layout to mtd_info */
+	mtd->ecclayout = chip->ecc.layout;
+
+	/* Check, if we should skip the bad block table scan */
+	if (chip->options & NAND_SKIP_BBTSCAN)
+		return 0;
+
+	/* Build bad block table */
+	return chip->scan_bbt(mtd);
+}
+
+/* module_text_address() isn't exported, and it's mostly a pointless
+   test if this is a module _anyway_ -- they'd have to try _really_ hard
+   to call us from in-kernel code if the core NAND support is modular. */
+#ifdef MODULE
+#define caller_is_module() (1)
+#else
+#define caller_is_module() \
+	module_text_address((unsigned long)__builtin_return_address(0))
+#endif
+
+/**
+ * nand_scan - [NAND Interface] Scan for the NAND device
+ * @mtd:	MTD device structure
+ * @maxchips:	Number of chips to scan for
+ *
+ * This fills out all the uninitialized function pointers
+ * with the defaults.
+ * The flash ID is read and the mtd/chip structures are
+ * filled with the appropriate values.
+ * The mtd->owner field must be set to the module of the caller
+ *
+ */
+int nand_scan(struct mtd_info *mtd, int maxchips)
+{
+	int ret;
+
+	/* Many callers got this wrong, so check for it for a while... */
+	/* XXX U-BOOT XXX */
 #if 0
-	mtd->owner = THIS_MODULE;
+	if (!mtd->owner && caller_is_module()) {
+		printk(KERN_CRIT "nand_scan() called with NULL mtd->owner!\n");
+		BUG();
+	}
 #endif
-	/* Build bad block table */
-	return this->scan_bbt (mtd);
+	
+	ret = nand_scan_ident(mtd, maxchips);
+	if (!ret)
+		ret = nand_scan_tail(mtd);
+	return ret;
 }
 
 /**
  * nand_release - [NAND Interface] Free resources held by the NAND device
  * @mtd:	MTD device structure
- */
-void nand_release (struct mtd_info *mtd)
+*/
+void nand_release(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *chip = mtd->priv;
 
 #ifdef CONFIG_MTD_PARTITIONS
 	/* Deregister partitions */
-	del_mtd_partitions (mtd);
+	del_mtd_partitions(mtd);
 #endif
 	/* Deregister the device */
-/* XXX U-BOOT XXX */
+	/* XXX U-BOOT XXX */
 #if 0
-	del_mtd_device (mtd);
+	del_mtd_device(mtd);
 #endif
-	/* Free bad block table memory, if allocated */
-	if (this->bbt)
-		kfree (this->bbt);
-	/* Buffer allocated by nand_scan ? */
-	if (this->options & NAND_OOBBUF_ALLOC)
-		kfree (this->oob_buf);
-	/* Buffer allocated by nand_scan ? */
-	if (this->options & NAND_DATABUF_ALLOC)
-		kfree (this->data_buf);
+
+	/* Free bad block table memory */
+	kfree(chip->bbt);
+	if (!(chip->options & NAND_OWN_BUFFERS))
+		kfree(chip->buffers);
 }
 
+/* XXX U-BOOT XXX */
+#if 0
+EXPORT_SYMBOL_GPL(nand_scan);
+EXPORT_SYMBOL_GPL(nand_scan_ident);
+EXPORT_SYMBOL_GPL(nand_scan_tail);
+EXPORT_SYMBOL_GPL(nand_release);
+
+static int __init nand_base_init(void)
+{
+	led_trigger_register_simple("nand-disk", &nand_led_trigger);
+	return 0;
+}
+
+static void __exit nand_base_exit(void)
+{
+	led_trigger_unregister_simple(nand_led_trigger);
+}
+
+module_init(nand_base_init);
+module_exit(nand_base_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com>, Thomas Gleixner <tglx@linutronix.de>");
+MODULE_DESCRIPTION("Generic NAND flash driver code");
 #endif
+
+#endif
+
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index a97743b..acf1cf5 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -6,7 +6,7 @@
  *
  *  Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de)
  *
- * $Id: nand_bbt.c,v 1.28 2004/11/13 10:19:09 gleixner Exp $
+ * $Id: nand_bbt.c,v 1.36 2005/11/07 11:14:30 gleixner Exp $
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -48,7 +48,7 @@
  *
  * Following assumptions are made:
  * - bbts start at a page boundary, if autolocated on a block boundary
- * - the space neccecary for a bbt in FLASH does not exceed a block boundary
+ * - the space necessary for a bbt in FLASH does not exceed a block boundary
  *
  */
 
@@ -63,6 +63,19 @@
 
 #include <asm/errno.h>
 
+/* XXX U-BOOT XXX */
+#if 0
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/compatmac.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/vmalloc.h>
+#endif
+
 /**
  * check_pattern - [GENERIC] check if a pattern is in the buffer
  * @buf:	the buffer to search
@@ -76,9 +89,9 @@
  * pattern area contain 0xff
  *
 */
-static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td)
+static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td)
 {
-	int i, end;
+	int i, end = 0;
 	uint8_t *p = buf;
 
 	end = paglen + td->offs;
@@ -96,9 +109,9 @@ static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_des
 			return -1;
 	}
 
-	p += td->len;
-	end += td->len;
 	if (td->options & NAND_BBT_SCANEMPTY) {
+		p += td->len;
+		end += td->len;
 		for (i = end; i < len; i++) {
 			if (*p++ != 0xff)
 				return -1;
@@ -108,6 +121,29 @@ static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_des
 }
 
 /**
+ * check_short_pattern - [GENERIC] check if a pattern is in the buffer
+ * @buf:	the buffer to search
+ * @td:		search pattern descriptor
+ *
+ * Check for a pattern at the given place. Used to search bad block
+ * tables and good / bad block identifiers. Same as check_pattern, but
+ * no optional empty check
+ *
+*/
+static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td)
+{
+	int i;
+	uint8_t *p = buf;
+
+	/* Compare the pattern */
+	for (i = 0; i < td->len; i++) {
+		if (p[td->offs + i] != td->pattern[i])
+			return -1;
+	}
+	return 0;
+}
+
+/**
  * read_bbt - [GENERIC] Read the bad block table starting from page
  * @mtd:	MTD device structure
  * @buf:	temporary buffer
@@ -120,8 +156,8 @@ static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_des
  * Read the bad block table starting from page.
  *
  */
-static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
-	int bits, int offs, int reserved_block_code)
+static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
+		    int bits, int offs, int reserved_block_code)
 {
 	int res, i, j, act = 0;
 	struct nand_chip *this = mtd->priv;
@@ -130,17 +166,17 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
 	uint8_t msk = (uint8_t) ((1 << bits) - 1);
 
 	totlen = (num * bits) >> 3;
-	from = ((loff_t)page) << this->page_shift;
+	from = ((loff_t) page) << this->page_shift;
 
 	while (totlen) {
-		len = min (totlen, (size_t) (1 << this->bbt_erase_shift));
-		res = mtd->read_ecc (mtd, from, len, &retlen, buf, NULL, this->autooob);
+		len = min(totlen, (size_t) (1 << this->bbt_erase_shift));
+		res = mtd->read(mtd, from, len, &retlen, buf);
 		if (res < 0) {
 			if (retlen != len) {
-				printk (KERN_INFO "nand_bbt: Error reading bad block table\n");
+				printk(KERN_INFO "nand_bbt: Error reading bad block table\n");
 				return res;
 			}
-			printk (KERN_WARNING "nand_bbt: ECC error while reading bad block table\n");
+			printk(KERN_WARNING "nand_bbt: ECC error while reading bad block table\n");
 		}
 
 		/* Analyse data */
@@ -150,22 +186,23 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
 				uint8_t tmp = (dat >> j) & msk;
 				if (tmp == msk)
 					continue;
-				if (reserved_block_code &&
-				    (tmp == reserved_block_code)) {
-					printk (KERN_DEBUG "nand_read_bbt: Reserved block at 0x%08x\n",
-						((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+				if (reserved_block_code && (tmp == reserved_block_code)) {
+					printk(KERN_DEBUG "nand_read_bbt: Reserved block at 0x%08x\n",
+					       ((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
 					this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
+					mtd->ecc_stats.bbtblocks++;
 					continue;
 				}
 				/* Leave it for now, if its matured we can move this
 				 * message to MTD_DEBUG_LEVEL0 */
-				printk (KERN_DEBUG "nand_read_bbt: Bad block at 0x%08x\n",
-					((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+				printk(KERN_DEBUG "nand_read_bbt: Bad block at 0x%08x\n",
+				       ((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
 				/* Factory marked bad or worn out ? */
 				if (tmp == 0)
 					this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
 				else
 					this->bbt[offs + (act >> 3)] |= 0x1 << (act & 0x06);
+				mtd->ecc_stats.badblocks++;
 			}
 		}
 		totlen -= len;
@@ -185,7 +222,7 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
  * Read the bad block table for all chips starting at a given page
  * We assume that the bbt bits are in consecutive order.
 */
-static int read_abs_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
+static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
 {
 	struct nand_chip *this = mtd->priv;
 	int res = 0, i;
@@ -209,6 +246,42 @@ static int read_abs_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
 	return 0;
 }
 
+/*
+ * Scan read raw data from flash
+ */
+static int scan_read_raw(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
+			 size_t len)
+{
+	struct mtd_oob_ops ops;
+
+	ops.mode = MTD_OOB_RAW;
+	ops.ooboffs = 0;
+	ops.ooblen = mtd->oobsize;
+	ops.oobbuf = buf;
+	ops.datbuf = buf;
+	ops.len = len;
+
+	return mtd->read_oob(mtd, offs, &ops);
+}
+
+/*
+ * Scan write data with oob to flash
+ */
+static int scan_write_bbt(struct mtd_info *mtd, loff_t offs, size_t len,
+			  uint8_t *buf, uint8_t *oob)
+{
+	struct mtd_oob_ops ops;
+
+	ops.mode = MTD_OOB_PLACE;
+	ops.ooboffs = 0;
+	ops.ooblen = mtd->oobsize;
+	ops.datbuf = buf;
+	ops.oobbuf = oob;
+	ops.len = len;
+
+	return mtd->write_oob(mtd, offs, &ops);
+}
+
 /**
  * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page
  * @mtd:	MTD device structure
@@ -220,28 +293,84 @@ static int read_abs_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
  * We assume that the bbt bits are in consecutive order.
  *
 */
-static int read_abs_bbts (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td,
-	struct nand_bbt_descr *md)
+static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
+			 struct nand_bbt_descr *td, struct nand_bbt_descr *md)
 {
 	struct nand_chip *this = mtd->priv;
 
 	/* Read the primary version, if available */
 	if (td->options & NAND_BBT_VERSION) {
-		nand_read_raw (mtd, buf, td->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
-		td->version[0] = buf[mtd->oobblock + td->veroffs];
-		printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", td->pages[0], td->version[0]);
+		scan_read_raw(mtd, buf, td->pages[0] << this->page_shift,
+			      mtd->writesize);
+		td->version[0] = buf[mtd->writesize + td->veroffs];
+		printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n",
+		       td->pages[0], td->version[0]);
 	}
 
 	/* Read the mirror version, if available */
 	if (md && (md->options & NAND_BBT_VERSION)) {
-		nand_read_raw (mtd, buf, md->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
-		md->version[0] = buf[mtd->oobblock + md->veroffs];
-		printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", md->pages[0], md->version[0]);
+		scan_read_raw(mtd, buf, md->pages[0] << this->page_shift,
+			      mtd->writesize);
+		md->version[0] = buf[mtd->writesize + md->veroffs];
+		printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n",
+		       md->pages[0], md->version[0]);
 	}
-
 	return 1;
 }
 
+/*
+ * Scan a given block full
+ */
+static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
+			   loff_t offs, uint8_t *buf, size_t readlen,
+			   int scanlen, int len)
+{
+	int ret, j;
+
+	ret = scan_read_raw(mtd, buf, offs, readlen);
+	if (ret)
+		return ret;
+
+	for (j = 0; j < len; j++, buf += scanlen) {
+		if (check_pattern(buf, scanlen, mtd->writesize, bd))
+			return 1;
+	}
+	return 0;
+}
+
+/*
+ * Scan a given block partially
+ */
+static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
+			   loff_t offs, uint8_t *buf, int len)
+{
+	struct mtd_oob_ops ops;
+	int j, ret;
+
+	ops.ooblen = mtd->oobsize;
+	ops.oobbuf = buf;
+	ops.ooboffs = 0;
+	ops.datbuf = NULL;
+	ops.mode = MTD_OOB_PLACE;
+
+	for (j = 0; j < len; j++) {
+		/*
+		 * Read the full oob until read_oob is fixed to
+		 * handle single byte reads for 16 bit
+		 * buswidth
+		 */
+		ret = mtd->read_oob(mtd, offs, &ops);
+		if (ret)
+			return ret;
+
+		if (check_short_pattern(buf, bd))
+			return 1;
+
+		offs += mtd->writesize;
+	}
+	return 0;
+}
+
 /**
  * create_bbt - [GENERIC] Create a bad block table by scanning the device
  * @mtd:	MTD device structure
@@ -253,13 +382,16 @@ static int read_abs_bbts (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_de
  * Create a bad block table by scanning the device
  * for the given good/bad block identify pattern
  */
-static void create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd, int chip)
+static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
+	struct nand_bbt_descr *bd, int chip)
 {
 	struct nand_chip *this = mtd->priv;
-	int i, j, numblocks, len, scanlen;
+	int i, numblocks, len, scanlen;
 	int startblock;
 	loff_t from;
-	size_t readlen, ooblen;
+	size_t readlen;
+
+	printk(KERN_INFO "Scanning device for bad blocks\n");
 
 	if (bd->options & NAND_BBT_SCANALLPAGES)
 		len = 1 << (this->bbt_erase_shift - this->page_shift);
@@ -269,21 +401,28 @@ static void create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
 		else
 			len = 1;
 	}
-	scanlen	= mtd->oobblock + mtd->oobsize;
-	readlen = len * mtd->oobblock;
-	ooblen = len * mtd->oobsize;
+
+	if (!(bd->options & NAND_BBT_SCANEMPTY)) {
+		/* We need only read few bytes from the OOB area */
+		scanlen = 0;
+		readlen = bd->len;
+	} else {
+		/* Full page content should be read */
+		scanlen = mtd->writesize + mtd->oobsize;
+		readlen = len * mtd->writesize;
+	}
 
 	if (chip == -1) {
-		/* Note that numblocks is 2 * (real numblocks) here, see i+=2 below as it
-		 * makes shifting and masking less painful */
+		/* Note that numblocks is 2 * (real numblocks) here, see i+=2
+		 * below as it makes shifting and masking less painful */
 		numblocks = mtd->size >> (this->bbt_erase_shift - 1);
 		startblock = 0;
 		from = 0;
 	} else {
 		if (chip >= this->numchips) {
-			printk (KERN_WARNING "create_bbt(): chipnr (%d) > available chips (%d)\n",
-				chip + 1, this->numchips);
-			return;
+			printk(KERN_WARNING "create_bbt(): chipnr (%d) > available chips (%d)\n",
+			       chip + 1, this->numchips);
+			return -EINVAL;
 		}
 		numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
 		startblock = chip * numblocks;
@@ -292,16 +431,28 @@ static void create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
 	}
 
 	for (i = startblock; i < numblocks;) {
-		nand_read_raw (mtd, buf, from, readlen, ooblen);
-		for (j = 0; j < len; j++) {
-			if (check_pattern (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) {
-				this->bbt[i >> 3] |= 0x03 << (i & 0x6);
-				break;
-			}
+		int ret;
+
+		if (bd->options & NAND_BBT_SCANALLPAGES)
+			ret = scan_block_full(mtd, bd, from, buf, readlen,
+					      scanlen, len);
+		else
+			ret = scan_block_fast(mtd, bd, from, buf, len);
+
+		if (ret < 0)
+			return ret;
+
+		if (ret) {
+			this->bbt[i >> 3] |= 0x03 << (i & 0x6);
+			printk(KERN_WARNING "Bad eraseblock %d at 0x%08x\n",
+			       i >> 1, (unsigned int)from);
+			mtd->ecc_stats.badblocks++;
 		}
+
 		i += 2;
 		from += (1 << this->bbt_erase_shift);
 	}
+	return 0;
 }
 
 /**
@@ -316,22 +467,23 @@ static void create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
  * block.
  * If the option NAND_BBT_PERCHIP is given, each chip is searched
  * for a bbt, which contains the bad block information of this chip.
- * This is neccecary to provide support for certain DOC devices.
+ * This is necessary to provide support for certain DOC devices.
  *
  * The bbt ident pattern resides in the oob area of the first page
  * in a block.
  */
-static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
+static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
 {
 	struct nand_chip *this = mtd->priv;
 	int i, chips;
 	int bits, startblock, block, dir;
-	int scanlen = mtd->oobblock + mtd->oobsize;
+	int scanlen = mtd->writesize + mtd->oobsize;
 	int bbtblocks;
+	int blocktopage = this->bbt_erase_shift - this->page_shift;
 
 	/* Search direction top -> down ? */
 	if (td->options & NAND_BBT_LASTBLOCK) {
-		startblock = (mtd->size >> this->bbt_erase_shift) -1;
+		startblock = (mtd->size >> this->bbt_erase_shift) - 1;
 		dir = -1;
 	} else {
 		startblock = 0;
@@ -357,13 +509,16 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
 		td->pages[i] = -1;
 		/* Scan the maximum number of blocks */
 		for (block = 0; block < td->maxblocks; block++) {
+
 			int actblock = startblock + dir * block;
+			loff_t offs = actblock << this->bbt_erase_shift;
+
 			/* Read first page */
-			nand_read_raw (mtd, buf, actblock << this->bbt_erase_shift, mtd->oobblock, mtd->oobsize);
-			if (!check_pattern(buf, scanlen, mtd->oobblock, td)) {
-				td->pages[i] = actblock << (this->bbt_erase_shift - this->page_shift);
+			scan_read_raw(mtd, buf, offs, mtd->writesize);
+			if (!check_pattern(buf, scanlen, mtd->writesize, td)) {
+				td->pages[i] = actblock << blocktopage;
 				if (td->options & NAND_BBT_VERSION) {
-					td->version[i] = buf[mtd->oobblock + td->veroffs];
+					td->version[i] = buf[mtd->writesize + td->veroffs];
 				}
 				break;
 			}
@@ -373,9 +528,10 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
 	/* Check, if we found a bbt for each requested chip */
 	for (i = 0; i < chips; i++) {
 		if (td->pages[i] == -1)
-			printk (KERN_WARNING "Bad block table not found for chip %d\n", i);
+			printk(KERN_WARNING "Bad block table not found for chip %d\n", i);
 		else
-			printk (KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]);
+			printk(KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i],
+			       td->version[i]);
 	}
 	return 0;
 }
@@ -389,21 +545,19 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
  *
  * Search and read the bad block table(s)
 */
-static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf,
-	struct nand_bbt_descr *td, struct nand_bbt_descr *md)
+static int search_read_bbts(struct mtd_info *mtd, uint8_t * buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md)
 {
 	/* Search the primary table */
-	search_bbt (mtd, buf, td);
+	search_bbt(mtd, buf, td);
 
 	/* Search the mirror table */
 	if (md)
-		search_bbt (mtd, buf, md);
+		search_bbt(mtd, buf, md);
 
 	/* Force result check */
 	return 1;
 }
 
-
 /**
  * write_bbt - [GENERIC] (Re)write the bad block table
  *
@@ -416,25 +570,31 @@ static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf,
  * (Re)write the bad block table
  *
 */
-static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
-	struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel)
+static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
+		     struct nand_bbt_descr *td, struct nand_bbt_descr *md,
+		     int chipsel)
 {
 	struct nand_chip *this = mtd->priv;
-	struct nand_oobinfo oobinfo;
 	struct erase_info einfo;
 	int i, j, res, chip = 0;
 	int bits, startblock, dir, page, offs, numblocks, sft, sftmsk;
-	int nrchips, bbtoffs, pageoffs;
+	int nrchips, bbtoffs, pageoffs, ooboffs;
 	uint8_t msk[4];
 	uint8_t rcode = td->reserved_block_code;
 	size_t retlen, len = 0;
 	loff_t to;
+	struct mtd_oob_ops ops;
+
+	ops.ooblen = mtd->oobsize;
+	ops.ooboffs = 0;
+	ops.datbuf = NULL;
+	ops.mode = MTD_OOB_PLACE;
 
 	if (!rcode)
 		rcode = 0xff;
 	/* Write bad block table per chip rather than per device ? */
 	if (td->options & NAND_BBT_PERCHIP) {
-		numblocks = (int) (this->chipsize >> this->bbt_erase_shift);
+		numblocks = (int)(this->chipsize >> this->bbt_erase_shift);
 		/* Full device write or specific chip ? */
 		if (chipsel == -1) {
 			nrchips = this->numchips;
@@ -443,7 +603,7 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
 			chip = chipsel;
 		}
 	} else {
-		numblocks = (int) (mtd->size >> this->bbt_erase_shift);
+		numblocks = (int)(mtd->size >> this->bbt_erase_shift);
 		nrchips = 1;
 	}
 
@@ -472,27 +632,38 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
 		for (i = 0; i < td->maxblocks; i++) {
 			int block = startblock + dir * i;
 			/* Check, if the block is bad */
-			switch ((this->bbt[block >> 2] >> (2 * (block & 0x03))) & 0x03) {
+			switch ((this->bbt[block >> 2] >>
+				 (2 * (block & 0x03))) & 0x03) {
 			case 0x01:
 			case 0x03:
 				continue;
 			}
-			page = block << (this->bbt_erase_shift - this->page_shift);
+			page = block <<
+				(this->bbt_erase_shift - this->page_shift);
 			/* Check, if the block is used by the mirror table */
 			if (!md || md->pages[chip] != page)
 				goto write;
 		}
-		printk (KERN_ERR "No space left to write bad block table\n");
+		printk(KERN_ERR "No space left to write bad block table\n");
 		return -ENOSPC;
-write:
+	write:
 
 		/* Set up shift count and masks for the flash table */
 		bits = td->options & NAND_BBT_NRBITS_MSK;
+		msk[2] = ~rcode;
 		switch (bits) {
-		case 1: sft = 3; sftmsk = 0x07; msk[0] = 0x00; msk[1] = 0x01; msk[2] = ~rcode; msk[3] = 0x01; break;
-		case 2: sft = 2; sftmsk = 0x06; msk[0] = 0x00; msk[1] = 0x01; msk[2] = ~rcode; msk[3] = 0x03; break;
-		case 4: sft = 1; sftmsk = 0x04; msk[0] = 0x00; msk[1] = 0x0C; msk[2] = ~rcode; msk[3] = 0x0f; break;
-		case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F; msk[2] = ~rcode; msk[3] = 0xff; break;
+		case 1: sft = 3; sftmsk = 0x07; msk[0] = 0x00; msk[1] = 0x01;
+			msk[3] = 0x01;
+			break;
+		case 2: sft = 2; sftmsk = 0x06; msk[0] = 0x00; msk[1] = 0x01;
+			msk[3] = 0x03;
+			break;
+		case 4: sft = 1; sftmsk = 0x04; msk[0] = 0x00; msk[1] = 0x0C;
+			msk[3] = 0x0f;
+			break;
+		case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F;
+			msk[3] = 0xff;
+			break;
 		default: return -EINVAL;
 		}
 
@@ -500,82 +671,92 @@ write:
 
 		to = ((loff_t) page) << this->page_shift;
 
-		memcpy (&oobinfo, this->autooob, sizeof(oobinfo));
-		oobinfo.useecc = MTD_NANDECC_PLACEONLY;
-
 		/* Must we save the block contents ? */
 		if (td->options & NAND_BBT_SAVECONTENT) {
 			/* Make it block aligned */
 			to &= ~((loff_t) ((1 << this->bbt_erase_shift) - 1));
 			len = 1 << this->bbt_erase_shift;
-			res = mtd->read_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo);
+			res = mtd->read(mtd, to, len, &retlen, buf);
 			if (res < 0) {
 				if (retlen != len) {
-					printk (KERN_INFO "nand_bbt: Error reading block for writing the bad block table\n");
+					printk(KERN_INFO "nand_bbt: Error "
+					       "reading block for writing "
+					       "the bad block table\n");
 					return res;
 				}
-				printk (KERN_WARNING "nand_bbt: ECC error while reading block for writing bad block table\n");
+				printk(KERN_WARNING "nand_bbt: ECC error "
+				       "while reading block for writing "
+				       "bad block table\n");
 			}
+			/* Read oob data */
+			ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
+			ops.oobbuf = &buf[len];
+			res = mtd->read_oob(mtd, to + mtd->writesize, &ops);
+			if (res < 0 || ops.oobretlen != ops.ooblen)
+				goto outerr;
+
 			/* Calc the byte offset in the buffer */
 			pageoffs = page - (int)(to >> this->page_shift);
 			offs = pageoffs << this->page_shift;
 			/* Preset the bbt area with 0xff */
-			memset (&buf[offs], 0xff, (size_t)(numblocks >> sft));
-			/* Preset the bbt's oob area with 0xff */
-			memset (&buf[len + pageoffs * mtd->oobsize], 0xff,
-				((len >> this->page_shift) - pageoffs) * mtd->oobsize);
-			if (td->options & NAND_BBT_VERSION) {
-				buf[len + (pageoffs * mtd->oobsize) + td->veroffs] = td->version[chip];
-			}
+			memset(&buf[offs], 0xff, (size_t) (numblocks >> sft));
+			ooboffs = len + (pageoffs * mtd->oobsize);
+
 		} else {
 			/* Calc length */
 			len = (size_t) (numblocks >> sft);
 			/* Make it page aligned ! */
-			len = (len + (mtd->oobblock-1)) & ~(mtd->oobblock-1);
+			len = (len + (mtd->writesize - 1)) &
+				~(mtd->writesize - 1);
 			/* Preset the buffer with 0xff */
-			memset (buf, 0xff, len + (len >> this->page_shift) * mtd->oobsize);
+			memset(buf, 0xff, len +
+			       (len >> this->page_shift)* mtd->oobsize);
 			offs = 0;
+			ooboffs = len;
 			/* Pattern is located in oob area of first page */
-			memcpy (&buf[len + td->offs], td->pattern, td->len);
-			if (td->options & NAND_BBT_VERSION) {
-				buf[len + td->veroffs] = td->version[chip];
-			}
+			memcpy(&buf[ooboffs + td->offs], td->pattern, td->len);
 		}
 
+		if (td->options & NAND_BBT_VERSION)
+			buf[ooboffs + td->veroffs] = td->version[chip];
+
 		/* walk through the memory table */
-		for (i = 0; i < numblocks; ) {
+		for (i = 0; i < numblocks;) {
 			uint8_t dat;
 			dat = this->bbt[bbtoffs + (i >> 2)];
-			for (j = 0; j < 4; j++ , i++) {
+			for (j = 0; j < 4; j++, i++) {
 				int sftcnt = (i << (3 - sft)) & sftmsk;
 				/* Do not store the reserved bbt blocks ! */
-				buf[offs + (i >> sft)] &= ~(msk[dat & 0x03] << sftcnt);
+				buf[offs + (i >> sft)] &=
+					~(msk[dat & 0x03] << sftcnt);
 				dat >>= 2;
 			}
 		}
 
-		memset (&einfo, 0, sizeof (einfo));
+		memset(&einfo, 0, sizeof(einfo));
 		einfo.mtd = mtd;
-		einfo.addr = (unsigned long) to;
+		einfo.addr = (unsigned long)to;
 		einfo.len = 1 << this->bbt_erase_shift;
-		res = nand_erase_nand (mtd, &einfo, 1);
-		if (res < 0) {
-			printk (KERN_WARNING "nand_bbt: Error during block erase: %d\n", res);
-			return res;
-		}
+		res = nand_erase_nand(mtd, &einfo, 1);
+		if (res < 0)
+			goto outerr;
 
-		res = mtd->write_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo);
-		if (res < 0) {
-			printk (KERN_WARNING "nand_bbt: Error while writing bad block table %d\n", res);
-			return res;
-		}
-		printk (KERN_DEBUG "Bad block table written to 0x%08x, version 0x%02X\n",
-			(unsigned int) to, td->version[chip]);
+		res = scan_write_bbt(mtd, to, len, buf, &buf[len]);
+		if (res < 0)
+			goto outerr;
+
+		printk(KERN_DEBUG "Bad block table written to 0x%08x, version "
+		       "0x%02X\n", (unsigned int)to, td->version[chip]);
 
 		/* Mark it as used */
 		td->pages[chip] = page;
 	}
 	return 0;
+
+ outerr:
+	printk(KERN_WARNING
+	       "nand_bbt: Error while writing bad block table %d\n", res);
+	return res;
 }
 
 /**
@@ -586,29 +767,27 @@ write:
  * The function creates a memory based bbt by scanning the device
  * for manufacturer / software marked good / bad blocks
 */
-static int nand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
+static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
 	struct nand_chip *this = mtd->priv;
 
-	/* Ensure that we only scan for the pattern and nothing else */
-	bd->options = 0;
-	create_bbt (mtd, this->data_buf, bd, -1);
-	return 0;
+	bd->options &= ~NAND_BBT_SCANEMPTY;
+	return create_bbt(mtd, this->buffers->databuf, bd, -1);
 }
 
 /**
- * check_create - [GENERIC] create and write bbt(s) if neccecary
+ * check_create - [GENERIC] create and write bbt(s) if necessary
  * @mtd:	MTD device structure
  * @buf:	temporary buffer
  * @bd:		descriptor for the good/bad block search pattern
  *
  * The function checks the results of the previous call to read_bbt
- * and creates / updates the bbt(s) if neccecary
- * Creation is neccecary if no bbt was found for the chip/device
- * Update is neccecary if one of the tables is missing or the
+ * and creates / updates the bbt(s) if necessary
+ * Creation is necessary if no bbt was found for the chip/device
+ * Update is necessary if one of the tables is missing or the
  * version nr. of one table is less than the other
 */
-static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
+static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
 {
 	int i, chips, writeops, chipsel, res;
 	struct nand_chip *this = mtd->priv;
@@ -676,35 +855,35 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
 			rd = td;
 			goto writecheck;
 		}
-create:
+	create:
 		/* Create the bad block table by scanning the device ? */
 		if (!(td->options & NAND_BBT_CREATE))
 			continue;
 
 		/* Create the table in memory by scanning the chip(s) */
-		create_bbt (mtd, buf, bd, chipsel);
+		create_bbt(mtd, buf, bd, chipsel);
 
 		td->version[i] = 1;
 		if (md)
 			md->version[i] = 1;
-writecheck:
+	writecheck:
 		/* read back first ? */
 		if (rd)
-			read_abs_bbt (mtd, buf, rd, chipsel);
+			read_abs_bbt(mtd, buf, rd, chipsel);
 		/* If they weren't versioned, read both. */
 		if (rd2)
-			read_abs_bbt (mtd, buf, rd2, chipsel);
+			read_abs_bbt(mtd, buf, rd2, chipsel);
 
 		/* Write the bad block table to the device ? */
 		if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
-			res = write_bbt (mtd, buf, td, md, chipsel);
+			res = write_bbt(mtd, buf, td, md, chipsel);
 			if (res < 0)
 				return res;
 		}
 
 		/* Write the mirror bad block table to the device ? */
 		if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
-			res = write_bbt (mtd, buf, md, td, chipsel);
+			res = write_bbt(mtd, buf, md, td, chipsel);
 			if (res < 0)
 				return res;
 		}
@@ -721,7 +900,7 @@ writecheck:
  * accidental erasures / writes. The regions are identified by
  * the mark 0x02.
 */
-static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
+static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
 {
 	struct nand_chip *this = mtd->priv;
 	int i, j, chips, block, nrblocks, update;
@@ -739,7 +918,8 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
 	for (i = 0; i < chips; i++) {
 		if ((td->options & NAND_BBT_ABSPAGE) ||
 		    !(td->options & NAND_BBT_WRITE)) {
-			if (td->pages[i] == -1) continue;
+			if (td->pages[i] == -1)
+				continue;
 			block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
 			block <<= 1;
 			oldval = this->bbt[(block >> 3)];
@@ -759,7 +939,8 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
 			oldval = this->bbt[(block >> 3)];
 			newval = oldval | (0x2 << (block & 0x06));
 			this->bbt[(block >> 3)] = newval;
-			if (oldval != newval) update = 1;
+			if (oldval != newval)
+				update = 1;
 			block += 2;
 		}
 		/* If we want reserved blocks to be recorded to flash, and some
@@ -784,7 +965,7 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
  * by calling the nand_free_bbt function.
  *
 */
-int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
+int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
 	struct nand_chip *this = mtd->priv;
 	int len, res = 0;
@@ -793,53 +974,56 @@ int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
 	struct nand_bbt_descr *md = this->bbt_md;
 
 	len = mtd->size >> (this->bbt_erase_shift + 2);
-	/* Allocate memory (2bit per block) */
-	this->bbt = kmalloc (len, GFP_KERNEL);
+	/* Allocate memory (2bit per block) and clear the memory bad block table */
+	this->bbt = kzalloc(len, GFP_KERNEL);
 	if (!this->bbt) {
-		printk (KERN_ERR "nand_scan_bbt: Out of memory\n");
+		printk(KERN_ERR "nand_scan_bbt: Out of memory\n");
 		return -ENOMEM;
 	}
-	/* Clear the memory bad block table */
-	memset (this->bbt, 0x00, len);
 
 	/* If no primary table decriptor is given, scan the device
 	 * to build a memory based bad block table
 	 */
-	if (!td)
-		return nand_memory_bbt(mtd, bd);
+	if (!td) {
+		if ((res = nand_memory_bbt(mtd, bd))) {
+			printk(KERN_ERR "nand_bbt: Can't scan flash and build the RAM-based BBT\n");
+			kfree(this->bbt);
+			this->bbt = NULL;
+		}
+		return res;
+	}
 
 	/* Allocate a temporary buffer for one eraseblock incl. oob */
 	len = (1 << this->bbt_erase_shift);
 	len += (len >> this->page_shift) * mtd->oobsize;
-	buf = kmalloc (len, GFP_KERNEL);
+	buf = vmalloc(len);
 	if (!buf) {
-		printk (KERN_ERR "nand_bbt: Out of memory\n");
-		kfree (this->bbt);
+		printk(KERN_ERR "nand_bbt: Out of memory\n");
+		kfree(this->bbt);
 		this->bbt = NULL;
 		return -ENOMEM;
 	}
 
 	/* Is the bbt at a given page ? */
 	if (td->options & NAND_BBT_ABSPAGE) {
-		res = read_abs_bbts (mtd, buf, td, md);
+		res = read_abs_bbts(mtd, buf, td, md);
 	} else {
 		/* Search the bad block table using a pattern in oob */
-		res = search_read_bbts (mtd, buf, td, md);
+		res = search_read_bbts(mtd, buf, td, md);
 	}
 
 	if (res)
-		res = check_create (mtd, buf, bd);
+		res = check_create(mtd, buf, bd);
 
 	/* Prevent the bbt regions from erasing / writing */
-	mark_bbt_region (mtd, td);
+	mark_bbt_region(mtd, td);
 	if (md)
-		mark_bbt_region (mtd, md);
+		mark_bbt_region(mtd, md);
 
-	kfree (buf);
+	vfree(buf);
 	return res;
 }
 
-
 /**
  * nand_update_bbt - [NAND Interface] update bad block table(s)
  * @mtd:	MTD device structure
@@ -847,7 +1031,7 @@ int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
  *
  * The function updates the bad block table(s)
 */
-int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
+int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
 {
 	struct nand_chip *this = mtd->priv;
 	int len, res = 0, writeops = 0;
@@ -863,9 +1047,9 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
 	/* Allocate a temporary buffer for one eraseblock incl. oob */
 	len = (1 << this->bbt_erase_shift);
 	len += (len >> this->page_shift) * mtd->oobsize;
-	buf = kmalloc (len, GFP_KERNEL);
+	buf = kmalloc(len, GFP_KERNEL);
 	if (!buf) {
-		printk (KERN_ERR "nand_update_bbt: Out of memory\n");
+		printk(KERN_ERR "nand_update_bbt: Out of memory\n");
 		return -ENOMEM;
 	}
 
@@ -873,7 +1057,7 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
 
 	/* Do we have a bbt per chip ? */
 	if (td->options & NAND_BBT_PERCHIP) {
-		chip = (int) (offs >> this->chip_shift);
+		chip = (int)(offs >> this->chip_shift);
 		chipsel = chip;
 	} else {
 		chip = 0;
@@ -886,29 +1070,26 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
 
 	/* Write the bad block table to the device ? */
 	if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
-		res = write_bbt (mtd, buf, td, md, chipsel);
+		res = write_bbt(mtd, buf, td, md, chipsel);
 		if (res < 0)
 			goto out;
 	}
 	/* Write the mirror bad block table to the device ? */
 	if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
-		res = write_bbt (mtd, buf, md, td, chipsel);
+		res = write_bbt(mtd, buf, md, td, chipsel);
 	}
 
-out:
-	kfree (buf);
+ out:
+	kfree(buf);
 	return res;
 }
 
 /* Define some generic bad / good block scan pattern which are used
- * while scanning a device for factory marked good / bad blocks
- *
- * The memory based patterns just
- */
+ * while scanning a device for factory marked good / bad blocks. */
 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 
 static struct nand_bbt_descr smallpage_memorybased = {
-	.options = 0,
+	.options = NAND_BBT_SCAN2NDPAGE,
 	.offs = 5,
 	.len = 1,
 	.pattern = scan_ff_pattern
@@ -922,14 +1103,14 @@ static struct nand_bbt_descr largepage_memorybased = {
 };
 
 static struct nand_bbt_descr smallpage_flashbased = {
-	.options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
+	.options = NAND_BBT_SCAN2NDPAGE,
 	.offs = 5,
 	.len = 1,
 	.pattern = scan_ff_pattern
 };
 
 static struct nand_bbt_descr largepage_flashbased = {
-	.options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
+	.options = NAND_BBT_SCAN2NDPAGE,
 	.offs = 0,
 	.len = 2,
 	.pattern = scan_ff_pattern
@@ -977,7 +1158,7 @@ static struct nand_bbt_descr bbt_mirror_descr = {
  * support for the device and calls the nand_scan_bbt function
  *
 */
-int nand_default_bbt (struct mtd_info *mtd)
+int nand_default_bbt(struct mtd_info *mtd)
 {
 	struct nand_chip *this = mtd->priv;
 
@@ -987,7 +1168,7 @@ int nand_default_bbt (struct mtd_info *mtd)
 	 * of the good / bad information, so we _must_ store
 	 * this information in a good / bad table during
 	 * startup
-	*/
+	 */
 	if (this->options & NAND_IS_AND) {
 		/* Use the default pattern descriptors */
 		if (!this->bbt_td) {
@@ -995,10 +1176,9 @@ int nand_default_bbt (struct mtd_info *mtd)
 			this->bbt_md = &bbt_mirror_descr;
 		}
 		this->options |= NAND_USE_FLASH_BBT;
-		return nand_scan_bbt (mtd, &agand_flashbased);
+		return nand_scan_bbt(mtd, &agand_flashbased);
 	}
 
-
 	/* Is a flash based bad block table requested ? */
 	if (this->options & NAND_USE_FLASH_BBT) {
 		/* Use the default pattern descriptors */
@@ -1007,18 +1187,17 @@ int nand_default_bbt (struct mtd_info *mtd)
 			this->bbt_md = &bbt_mirror_descr;
 		}
 		if (!this->badblock_pattern) {
-			this->badblock_pattern = (mtd->oobblock > 512) ?
-				&largepage_flashbased : &smallpage_flashbased;
+			this->badblock_pattern = (mtd->writesize > 512) ? &largepage_flashbased : &smallpage_flashbased;
 		}
 	} else {
 		this->bbt_td = NULL;
 		this->bbt_md = NULL;
 		if (!this->badblock_pattern) {
-			this->badblock_pattern = (mtd->oobblock > 512) ?
-				&largepage_memorybased : &smallpage_memorybased;
+			this->badblock_pattern = (mtd->writesize > 512) ?
+			    &largepage_memorybased : &smallpage_memorybased;
 		}
 	}
-	return nand_scan_bbt (mtd, this->badblock_pattern);
+	return nand_scan_bbt(mtd, this->badblock_pattern);
 }
 
 /**
@@ -1027,26 +1206,35 @@ int nand_default_bbt (struct mtd_info *mtd)
  * @offs:	offset in the device
  * @allowbbt:	allow access to bad block table region
  *
- */
-int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt)
+*/
+int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
 {
 	struct nand_chip *this = mtd->priv;
 	int block;
-	uint8_t	res;
+	uint8_t res;
 
 	/* Get block number * 2 */
-	block = (int) (offs >> (this->bbt_erase_shift - 1));
+	block = (int)(offs >> (this->bbt_erase_shift - 1));
 	res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
 
 	MTDDEBUG (MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: "
 	          "(block %d) 0x%02x\n", (unsigned int)offs, res, block >> 1);
 
 	switch ((int)res) {
-	case 0x00:	return 0;
-	case 0x01:	return 1;
-	case 0x02:	return allowbbt ? 0 : 1;
+	case 0x00:
+		return 0;
+	case 0x01:
+		return 1;
+	case 0x02:
+		return allowbbt ? 0 : 1;
 	}
 	return 1;
 }
 
+/* XXX U-BOOT XXX */
+#if 0
+EXPORT_SYMBOL(nand_scan_bbt);
+EXPORT_SYMBOL(nand_default_bbt);
+#endif
+
 #endif
diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
index 4c532b0..e1d5154 100644
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -7,7 +7,9 @@
  * Copyright (C) 2000-2004 Steven J. Hill (sjhill@realitydiluted.com)
  *                         Toshiba America Electronics Components, Inc.
  *
- * $Id: nand_ecc.c,v 1.14 2004/06/16 15:34:37 gleixner Exp $
+ * Copyright (C) 2006 Thomas Gleixner <tglx@linutronix.de>
+ *
+ * $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $
  *
  * This file is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -39,6 +41,14 @@
 
 #if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
 
+/* XXX U-BOOT XXX */
+#if 0
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mtd/nand_ecc.h>
+#endif
+
 #include<linux/mtd/mtd.h>
 
 /*
@@ -128,6 +138,10 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 
 	return 0;
 }
+/* XXX U-BOOT XXX */
+#if 0
+EXPORT_SYMBOL(nand_calculate_ecc);
+#endif
 #endif /* CONFIG_NAND_SPL */
 
 static inline int countbits(uint32_t byte)
@@ -197,4 +211,9 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat,
 	return -1;
 }
 
+/* XXX U-BOOT XXX */
+#if 0
+EXPORT_SYMBOL(nand_correct_data);
+#endif
+
 #endif
diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index 7363490..f8b96cf 100644
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -2,8 +2,8 @@
  *  drivers/mtd/nandids.c
  *
  *  Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de)
-  *
- * $Id: nand_ids.c,v 1.10 2004/05/26 13:40:12 gleixner Exp $
+ *
+ * $Id: nand_ids.c,v 1.16 2005/11/07 11:14:31 gleixner Exp $
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -16,7 +16,6 @@
 #if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
 
 #include <linux/mtd/nand.h>
-
 /*
 *	Chip ID list
 *
@@ -29,13 +28,15 @@
 *	512	512 Byte page size
 */
 struct nand_flash_dev nand_flash_ids[] = {
+
+#ifdef CONFIG_MTD_NAND_MUSEUM_IDS
 	{"NAND 1MiB 5V 8-bit",		0x6e, 256, 1, 0x1000, 0},
 	{"NAND 2MiB 5V 8-bit",		0x64, 256, 2, 0x1000, 0},
 	{"NAND 4MiB 5V 8-bit",		0x6b, 512, 4, 0x2000, 0},
 	{"NAND 1MiB 3,3V 8-bit",	0xe8, 256, 1, 0x1000, 0},
 	{"NAND 1MiB 3,3V 8-bit",	0xec, 256, 1, 0x1000, 0},
 	{"NAND 2MiB 3,3V 8-bit",	0xea, 256, 2, 0x1000, 0},
-	{"NAND 4MiB 3,3V 8-bit",	0xd5, 512, 4, 0x2000, 0},
+	{"NAND 4MiB 3,3V 8-bit", 	0xd5, 512, 4, 0x2000, 0},
 	{"NAND 4MiB 3,3V 8-bit",	0xe3, 512, 4, 0x2000, 0},
 	{"NAND 4MiB 3,3V 8-bit",	0xe5, 512, 4, 0x2000, 0},
 	{"NAND 8MiB 3,3V 8-bit",	0xd6, 512, 8, 0x2000, 0},
@@ -44,6 +45,7 @@ struct nand_flash_dev nand_flash_ids[] = {
 	{"NAND 8MiB 3,3V 8-bit",	0xe6, 512, 8, 0x2000, 0},
 	{"NAND 8MiB 1,8V 16-bit",	0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16},
 	{"NAND 8MiB 3,3V 16-bit",	0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16},
+#endif
 
 	{"NAND 16MiB 1,8V 8-bit",	0x33, 512, 16, 0x4000, 0},
 	{"NAND 16MiB 3,3V 8-bit",	0x73, 512, 16, 0x4000, 0},
@@ -61,52 +63,72 @@ struct nand_flash_dev nand_flash_ids[] = {
 	{"NAND 64MiB 3,3V 16-bit",	0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16},
 
 	{"NAND 128MiB 1,8V 8-bit",	0x78, 512, 128, 0x4000, 0},
+	{"NAND 128MiB 1,8V 8-bit",	0x39, 512, 128, 0x4000, 0},
 	{"NAND 128MiB 3,3V 8-bit",	0x79, 512, 128, 0x4000, 0},
 	{"NAND 128MiB 1,8V 16-bit",	0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16},
+	{"NAND 128MiB 1,8V 16-bit",	0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16},
 	{"NAND 128MiB 3,3V 16-bit",	0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16},
+	{"NAND 128MiB 3,3V 16-bit",	0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16},
 
 	{"NAND 256MiB 3,3V 8-bit",	0x71, 512, 256, 0x4000, 0},
 
-	/* These are the new chips with large page size. The pagesize
-	* and the erasesize is determined from the extended id bytes
-	*/
+	/*
+	 * These are the new chips with large page size. The pagesize and the
+	 * erasesize is determined from the extended id bytes
+	 */
+#define LP_OPTIONS (NAND_SAMSUNG_LP_OPTIONS | NAND_NO_READRDY | NAND_NO_AUTOINCR)
+#define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
+
+	/*512 Megabit */
+	{"NAND 64MiB 1,8V 8-bit",	0xA2, 0,  64, 0, LP_OPTIONS},
+	{"NAND 64MiB 3,3V 8-bit",	0xF2, 0,  64, 0, LP_OPTIONS},
+	{"NAND 64MiB 1,8V 16-bit",	0xB2, 0,  64, 0, LP_OPTIONS16},
+	{"NAND 64MiB 3,3V 16-bit",	0xC2, 0,  64, 0, LP_OPTIONS16},
+
 	/* 1 Gigabit */
-	{"NAND 128MiB 1,8V 8-bit",	0xA1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 128MiB 3,3V 8-bit",	0xF1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 128MiB 1,8V 16-bit",	0xB1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
-	{"NAND 128MiB 3,3V 16-bit",	0xC1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
+	{"NAND 128MiB 1,8V 8-bit",	0xA1, 0, 128, 0, LP_OPTIONS},
+	{"NAND 128MiB 3,3V 8-bit",	0xF1, 0, 128, 0, LP_OPTIONS},
+	{"NAND 128MiB 1,8V 16-bit",	0xB1, 0, 128, 0, LP_OPTIONS16},
+	{"NAND 128MiB 3,3V 16-bit",	0xC1, 0, 128, 0, LP_OPTIONS16},
 
 	/* 2 Gigabit */
-	{"NAND 256MiB 1,8V 8-bit",	0xAA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 256MiB 3,3V 8-bit",	0xDA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 256MiB 1,8V 16-bit",	0xBA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
-	{"NAND 256MiB 3,3V 16-bit",	0xCA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
+	{"NAND 256MiB 1,8V 8-bit",	0xAA, 0, 256, 0, LP_OPTIONS},
+	{"NAND 256MiB 3,3V 8-bit",	0xDA, 0, 256, 0, LP_OPTIONS},
+	{"NAND 256MiB 1,8V 16-bit",	0xBA, 0, 256, 0, LP_OPTIONS16},
+	{"NAND 256MiB 3,3V 16-bit",	0xCA, 0, 256, 0, LP_OPTIONS16},
 
 	/* 4 Gigabit */
-	{"NAND 512MiB 1,8V 8-bit",	0xAC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 512MiB 3,3V 8-bit",	0xDC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 512MiB 1,8V 16-bit",	0xBC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
-	{"NAND 512MiB 3,3V 16-bit",	0xCC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
+	{"NAND 512MiB 1,8V 8-bit",	0xAC, 0, 512, 0, LP_OPTIONS},
+	{"NAND 512MiB 3,3V 8-bit",	0xDC, 0, 512, 0, LP_OPTIONS},
+	{"NAND 512MiB 1,8V 16-bit",	0xBC, 0, 512, 0, LP_OPTIONS16},
+	{"NAND 512MiB 3,3V 16-bit",	0xCC, 0, 512, 0, LP_OPTIONS16},
 
 	/* 8 Gigabit */
-	{"NAND 1GiB 1,8V 8-bit",	0xA3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 1GiB 3,3V 8-bit",	0xD3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 1GiB 1,8V 16-bit",	0xB3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
-	{"NAND 1GiB 3,3V 16-bit",	0xC3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
+	{"NAND 1GiB 1,8V 8-bit",	0xA3, 0, 1024, 0, LP_OPTIONS},
+	{"NAND 1GiB 3,3V 8-bit",	0xD3, 0, 1024, 0, LP_OPTIONS},
+	{"NAND 1GiB 1,8V 16-bit",	0xB3, 0, 1024, 0, LP_OPTIONS16},
+	{"NAND 1GiB 3,3V 16-bit",	0xC3, 0, 1024, 0, LP_OPTIONS16},
 
 	/* 16 Gigabit */
-	{"NAND 2GiB 1,8V 8-bit",	0xA5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 2GiB 3,3V 8-bit",	0xD5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
-	{"NAND 2GiB 1,8V 16-bit",	0xB5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
-	{"NAND 2GiB 3,3V 16-bit",	0xC5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
-
-	/* Renesas AND 1 Gigabit. Those chips do not support extended id and have a strange page/block layout !
-	 * The chosen minimum erasesize is 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page planes
-	 * 1 block = 2 pages, but due to plane arrangement the blocks 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7
-	 * Anyway JFFS2 would increase the eraseblock size so we chose a combined one which can be erased in one go
-	 * There are more speed improvements for reads and writes possible, but not implemented now
+	{"NAND 2GiB 1,8V 8-bit",	0xA5, 0, 2048, 0, LP_OPTIONS},
+	{"NAND 2GiB 3,3V 8-bit",	0xD5, 0, 2048, 0, LP_OPTIONS},
+	{"NAND 2GiB 1,8V 16-bit",	0xB5, 0, 2048, 0, LP_OPTIONS16},
+	{"NAND 2GiB 3,3V 16-bit",	0xC5, 0, 2048, 0, LP_OPTIONS16},
+
+	/*
+	 * Renesas AND 1 Gigabit. Those chips do not support extended id and
+	 * have a strange page/block layout !  The chosen minimum erasesize is
+	 * 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page
+	 * planes 1 block = 2 pages, but due to plane arrangement the blocks
+	 * 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7 Anyway JFFS2 would
+	 * increase the eraseblock size so we chose a combined one which can be
+	 * erased in one go There are more speed improvements for reads and
+	 * writes possible, but not implemented now
 	 */
-	{"AND 128MiB 3,3V 8-bit",	0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR | NAND_4PAGE_ARRAY},
+	{"AND 128MiB 3,3V 8-bit",	0x01, 2048, 128, 0x4000,
+	 NAND_IS_AND | NAND_NO_AUTOINCR |NAND_NO_READRDY | NAND_4PAGE_ARRAY |
+	 BBT_AUTO_REFRESH
+	},
 
 	{NULL,}
 };
@@ -121,6 +143,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
 	{NAND_MFR_NATIONAL, "National"},
 	{NAND_MFR_RENESAS, "Renesas"},
 	{NAND_MFR_STMICRO, "ST Micro"},
+	{NAND_MFR_HYNIX, "Hynix"},
 	{NAND_MFR_MICRON, "Micron"},
 	{0x0, "Unknown"}
 };
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index 828cc33..78e70cc 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -39,6 +39,9 @@
 #include <malloc.h>
 #include <div64.h>
 
+
+#include <asm/errno.h>
+#include <linux/mtd/mtd.h>
 #include <nand.h>
 #include <jffs2/jffs2.h>
 
@@ -69,71 +72,33 @@ static int nand_block_bad_scrub(struct mtd_info *mtd, loff_t ofs, int getchip)
 int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
 {
 	struct jffs2_unknown_node cleanmarker;
-	int clmpos = 0;
-	int clmlen = 8;
 	erase_info_t erase;
 	ulong erase_length;
-	int isNAND;
 	int bbtest = 1;
 	int result;
 	int percent_complete = -1;
 	int (*nand_block_bad_old)(struct mtd_info *, loff_t, int) = NULL;
 	const char *mtd_device = meminfo->name;
+	struct mtd_oob_ops oob_opts;
+	struct nand_chip *chip = meminfo->priv;
+	uint8_t buf[64];
 
+	memset(buf, 0, sizeof(buf));
 	memset(&erase, 0, sizeof(erase));
+	memset(&oob_opts, 0, sizeof(oob_opts));
 
 	erase.mtd = meminfo;
 	erase.len  = meminfo->erasesize;
 	erase.addr = opts->offset;
 	erase_length = opts->length;
 
-	isNAND = meminfo->type == MTD_NANDFLASH ? 1 : 0;
 
-	if (opts->jffs2) {
-		cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
-		cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
-		if (isNAND) {
-			struct nand_oobinfo *oobinfo = &meminfo->oobinfo;
-
-			/* check for autoplacement */
-			if (oobinfo->useecc == MTD_NANDECC_AUTOPLACE) {
-				/* get the position of the free bytes */
-				if (!oobinfo->oobfree[0][1]) {
-					printf(" Eeep. Autoplacement selected "
-					       "and no empty space in oob\n");
-					return -1;
-				}
-				clmpos = oobinfo->oobfree[0][0];
-				clmlen = oobinfo->oobfree[0][1];
-				if (clmlen > 8)
-					clmlen = 8;
-			} else {
-				/* legacy mode */
-				switch (meminfo->oobsize) {
-				case 8:
-					clmpos = 6;
-					clmlen = 2;
-					break;
-				case 16:
-					clmpos = 8;
-					clmlen = 8;
-					break;
-				case 64:
-					clmpos = 16;
-					clmlen = 8;
-					break;
-				}
-			}
-
-			cleanmarker.totlen = cpu_to_je32(8);
-		} else {
-			cleanmarker.totlen =
-				cpu_to_je32(sizeof(struct jffs2_unknown_node));
-		}
-		cleanmarker.hdr_crc =  cpu_to_je32(
-			crc32_no_comp(0, (unsigned char *) &cleanmarker,
-				      sizeof(struct jffs2_unknown_node) - 4));
-	}
+	cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
+	cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
+	cleanmarker.totlen = cpu_to_je32(8);
+	cleanmarker.hdr_crc = cpu_to_je32(
+	crc32_no_comp(0, (unsigned char *) &cleanmarker,
+	sizeof(struct jffs2_unknown_node) - 4));
 
 	/* scrub option allows to erase badblock. To prevent internal
 	 * check from erase() method, set block check method to dummy
@@ -163,7 +128,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
 	for (;
 	     erase.addr < opts->offset + erase_length;
 	     erase.addr += meminfo->erasesize) {
-
+		
 		WATCHDOG_RESET ();
 
 		if (!opts->scrub && bbtest) {
@@ -194,25 +159,21 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
 		/* format for JFFS2 ? */
 		if (opts->jffs2) {
 
-			/* write cleanmarker */
-			if (isNAND) {
-				size_t written;
-				result = meminfo->write_oob(meminfo,
-							    erase.addr + clmpos,
-							    clmlen,
-							    &written,
-							    (unsigned char *)
-							    &cleanmarker);
-				if (result != 0) {
-					printf("\n%s: MTD writeoob failure: %d\n",
-					       mtd_device, result);
-					continue;
-				}
-			} else {
-				printf("\n%s: this erase routine only supports"
-				       " NAND devices!\n",
-				       mtd_device);
+			chip->ops.len = chip->ops.ooblen = 64;
+			chip->ops.datbuf = NULL;
+			chip->ops.oobbuf = buf;
+			chip->ops.ooboffs = chip->badblockpos & ~0x01;
+			
+			result = meminfo->write_oob(meminfo,
+							erase.addr + meminfo->oobsize,
+							&chip->ops);
+			if (result != 0) {
+				printf("\n%s: MTD writeoob failure: %d\n",
+				mtd_device, result);
+				continue;
 			}
+			else
+				printf("%s: MTD writeoob at 0x%08x\n",mtd_device, erase.addr + meminfo->oobsize );
 		}
 
 		if (!opts->quiet) {
@@ -232,11 +193,11 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
 				percent_complete = percent;
 
 				printf("\rErasing at 0x%x -- %3d%% complete.",
-				       erase.addr, percent);
+				erase.addr, percent);
 
 				if (opts->jffs2 && result == 0)
-					printf(" Cleanmarker written at 0x%x.",
-					       erase.addr);
+				printf(" Cleanmarker written at 0x%x.",
+				erase.addr);
 			}
 		}
 	}
@@ -253,6 +214,9 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
 	return 0;
 }
 
+/* XXX U-BOOT XXX */
+#if 0
+
 #define MAX_PAGE_SIZE	2048
 #define MAX_OOB_SIZE	64
 
@@ -263,27 +227,190 @@ static unsigned char data_buf[MAX_PAGE_SIZE];
 static unsigned char oob_buf[MAX_OOB_SIZE];
 
 /* OOB layouts to pass into the kernel as default */
-static struct nand_oobinfo none_oobinfo = {
+static struct nand_ecclayout none_ecclayout = {
 	.useecc = MTD_NANDECC_OFF,
 };
 
-static struct nand_oobinfo jffs2_oobinfo = {
+static struct nand_ecclayout jffs2_ecclayout = {
 	.useecc = MTD_NANDECC_PLACE,
 	.eccbytes = 6,
 	.eccpos = { 0, 1, 2, 3, 6, 7 }
 };
 
-static struct nand_oobinfo yaffs_oobinfo = {
+static struct nand_ecclayout yaffs_ecclayout = {
 	.useecc = MTD_NANDECC_PLACE,
 	.eccbytes = 6,
 	.eccpos = { 8, 9, 10, 13, 14, 15}
 };
 
-static struct nand_oobinfo autoplace_oobinfo = {
+static struct nand_ecclayout autoplace_ecclayout = {
 	.useecc = MTD_NANDECC_AUTOPLACE
 };
+#endif
+
 
 /**
+ * nand_fill_oob - [Internal] Transfer client buffer to oob
+ * @chip:	nand chip structure
+ * @oob:	oob data buffer
+ * @ops:	oob ops structure
+ * 
+ * Copied from nand_base.c
+ */
+static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob,
+				  struct mtd_oob_ops *ops)
+{
+	size_t len = ops->ooblen;
+
+	switch(ops->mode) {
+
+	case MTD_OOB_PLACE:
+	case MTD_OOB_RAW:
+		memcpy(chip->oob_poi + ops->ooboffs, oob, len);
+		return oob + len;
+
+	case MTD_OOB_AUTO: {
+		struct nand_oobfree *free = chip->ecc.layout->oobfree;
+		uint32_t boffs = 0, woffs = ops->ooboffs;
+		size_t bytes = 0;
+
+		for(; free->length && len; free++, len -= bytes) {
+			/* Write request not from offset 0 ? */
+			if (unlikely(woffs)) {
+				if (woffs >= free->length) {
+					woffs -= free->length;
+					continue;
+				}
+				boffs = free->offset + woffs;
+				bytes = min_t(size_t, len,
+					      (free->length - woffs));
+				woffs = 0;
+			} else {
+				bytes = min_t(size_t, len, free->length);
+				boffs = free->offset;
+			}
+			memcpy(chip->oob_poi + boffs, oob, bytes);
+			oob += bytes;
+		}
+		return oob;
+	}
+	default:
+		BUG();
+	}
+	return NULL;
+}
+
+#define NOTALIGNED(x)	(x & (chip->subpagesize - 1)) != 0
+
+
+/* copied from nand_base.c: nand_do_write_ops()
+ * Only very small changes
+ */
+int nand_write_opts(nand_info_t *mtd, loff_t to, mtd_oob_ops_t *ops)
+{
+	int chipnr, realpage, page, blockmask, column;
+	struct nand_chip *chip = mtd->priv;
+	uint32_t writelen = ops->len;
+	uint8_t *oob = ops->oobbuf;
+	uint8_t *buf = ops->datbuf;
+	int ret, subpage;
+	
+	ops->retlen = 0;
+	if (!writelen)
+		return 0;
+
+	printk("nand_write_opts: to: 0x%08x, ops->len: 0x%08x\n", to, ops->len);
+	
+	/* reject writes, which are not page aligned */
+	if (NOTALIGNED(to) || NOTALIGNED(ops->len)) {
+		printk(KERN_NOTICE "nand_write: "
+		       "Attempt to write not page aligned data\n");
+		return -EINVAL;
+	}
+
+	column = to & (mtd->writesize - 1);
+	subpage = column || (writelen & (mtd->writesize - 1));
+
+	if (subpage && oob) {
+		printk(KERN_NOTICE "nand_write: "
+		       "Attempt to write oob to subpage\n");
+		return -EINVAL;
+	}
+
+	chipnr = (int)(to >> chip->chip_shift);
+	chip->select_chip(mtd, chipnr);
+
+	/* XXX U-BOOT XXX */
+#if 0
+	/* Check, if it is write protected */
+	if (nand_check_wp(mtd))
+		return -EIO;
+#endif
+
+	realpage = (int)(to >> chip->page_shift);
+	page = realpage & chip->pagemask;
+	blockmask = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
+
+	/* Invalidate the page cache, when we write to the cached page */
+	if (to <= (chip->pagebuf << chip->page_shift) &&
+	    (chip->pagebuf << chip->page_shift) < (to + ops->len))
+		chip->pagebuf = -1;
+
+	/* If we're not given explicit OOB data, let it be 0xFF */
+	if (likely(!oob)) {
+		printf("!oob, writing %d bytes with 0xff to chip->oob_poi (0x%08x)\n", mtd->oobsize, chip->oob_poi);
+		memset(chip->oob_poi, 0xff, mtd->oobsize);
+	}
+
+	while(1) {
+		int bytes = mtd->writesize;
+		int cached = writelen > bytes && page != blockmask;
+		uint8_t *wbuf = buf;
+
+		/* Partial page write ? */
+		if (unlikely(column || writelen < (mtd->writesize - 1))) {
+			cached = 0;
+			bytes = min_t(int, bytes - column, (int) writelen);
+			chip->pagebuf = -1;
+			memset(chip->buffers->databuf, 0xff, mtd->writesize);
+			memcpy(&chip->buffers->databuf[column], buf, bytes);
+			wbuf = chip->buffers->databuf;
+		}
+
+		if (unlikely(oob))
+			oob = nand_fill_oob(chip, oob, ops);
+
+		ret = chip->write_page(mtd, chip, wbuf, page, cached,
+				       (ops->mode == MTD_OOB_RAW));
+		if (ret)
+			break;
+
+		writelen -= bytes;
+		if (!writelen)
+			break;
+
+		column = 0;
+		buf += bytes;
+		realpage++;
+
+		page = realpage & chip->pagemask;
+		/* Check, if we cross a chip boundary */
+		if (!page) {
+			chipnr++;
+			chip->select_chip(mtd, -1);
+			chip->select_chip(mtd, chipnr);
+		}
+	}
+
+	ops->retlen = ops->len - writelen;
+	if (unlikely(oob))
+		ops->oobretlen = ops->ooblen;
+	return ret;
+}
+
+/* XXX U-BOOT XXX */
+#if 0
+/**
  * nand_write_opts: - write image to NAND flash with support for various options
  *
  * @param meminfo	NAND device to erase
@@ -301,9 +428,9 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
 	int blockstart = -1;
 	loff_t offs;
 	int readlen;
-	int oobinfochanged = 0;
+	int ecclayoutchanged = 0;
 	int percent_complete = -1;
-	struct nand_oobinfo old_oobinfo;
+	struct nand_ecclayout old_ecclayout;
 	ulong mtdoffset = opts->offset;
 	ulong erasesize_blockalign;
 	u_char *buffer = opts->buffer;
@@ -324,35 +451,35 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
 	}
 
 	/* make sure device page sizes are valid */
-	if (!(meminfo->oobsize == 16 && meminfo->oobblock == 512)
-	    && !(meminfo->oobsize == 8 && meminfo->oobblock == 256)
-	    && !(meminfo->oobsize == 64 && meminfo->oobblock == 2048)) {
+	if (!(meminfo->oobsize == 16 && meminfo->writesize == 512)
+	    && !(meminfo->oobsize == 8 && meminfo->writesize == 256)
+	    && !(meminfo->oobsize == 64 && meminfo->writesize == 2048)) {
 		printf("Unknown flash (not normal NAND)\n");
 		return -1;
 	}
 
 	/* read the current oob info */
-	memcpy(&old_oobinfo, &meminfo->oobinfo, sizeof(old_oobinfo));
+	memcpy(&old_ecclayout, &meminfo->ecclayout, sizeof(old_ecclayout));
 
 	/* write without ecc? */
 	if (opts->noecc) {
-		memcpy(&meminfo->oobinfo, &none_oobinfo,
-		       sizeof(meminfo->oobinfo));
-		oobinfochanged = 1;
+		memcpy(&meminfo->ecclayout, &none_ecclayout,
+		       sizeof(meminfo->ecclayout));
+		ecclayoutchanged = 1;
 	}
 
 	/* autoplace ECC? */
-	if (opts->autoplace && (old_oobinfo.useecc != MTD_NANDECC_AUTOPLACE)) {
+	if (opts->autoplace && (old_ecclayout.useecc != MTD_NANDECC_AUTOPLACE)) {
 
-		memcpy(&meminfo->oobinfo, &autoplace_oobinfo,
-		       sizeof(meminfo->oobinfo));
-		oobinfochanged = 1;
+		memcpy(&meminfo->ecclayout, &autoplace_ecclayout,
+		       sizeof(meminfo->ecclayout));
+		ecclayoutchanged = 1;
 	}
 
 	/* force OOB layout for jffs2 or yaffs? */
 	if (opts->forcejffs2 || opts->forceyaffs) {
-		struct nand_oobinfo *oobsel =
-			opts->forcejffs2 ? &jffs2_oobinfo : &yaffs_oobinfo;
+		struct nand_ecclayout *oobsel =
+			opts->forcejffs2 ? &jffs2_ecclayout : &yaffs_ecclayout;
 
 		if (meminfo->oobsize == 8) {
 			if (opts->forceyaffs) {
@@ -361,15 +488,15 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
 				goto restoreoob;
 			}
 			/* Adjust number of ecc bytes */
-			jffs2_oobinfo.eccbytes = 3;
+			jffs2_ecclayout.eccbytes = 3;
 		}
 
-		memcpy(&meminfo->oobinfo, oobsel, sizeof(meminfo->oobinfo));
+		memcpy(&meminfo->ecclayout, oobsel, sizeof(meminfo->ecclayout));
 	}
 
 	/* get image length */
 	imglen = opts->length;
-	pagelen = meminfo->oobblock
+	pagelen = meminfo->writesize
 		+ ((opts->writeoob != 0) ? meminfo->oobsize : 0);
 
 	/* check, if file is pagealigned */
@@ -379,11 +506,11 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
 	}
 
 	/* check, if length fits into device */
-	if (((imglen / pagelen) * meminfo->oobblock)
+	if (((imglen / pagelen) * meminfo->writesize)
 	     > (meminfo->size - opts->offset)) {
 		printf("Image %d bytes, NAND page %d bytes, "
 		       "OOB area %u bytes, device size %u bytes\n",
-		       imglen, pagelen, meminfo->oobblock, meminfo->size);
+		       imglen, pagelen, meminfo->writesize, meminfo->size);
 		printf("Input block does not fit into device\n");
 		goto restoreoob;
 	}
@@ -437,11 +564,11 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
 			} while (offs < blockstart + erasesize_blockalign);
 		}
 
-		readlen = meminfo->oobblock;
+		readlen = meminfo->writesize;
 		if (opts->pad && (imglen < readlen)) {
 			readlen = imglen;
 			memset(data_buf + readlen, 0xff,
-			       meminfo->oobblock - readlen);
+			       meminfo->writesize - readlen);
 		}
 
 		/* read page data from input memory buffer */
@@ -474,7 +601,7 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
 		/* write out the page data */
 		result = meminfo->write(meminfo,
 					mtdoffset,
-					meminfo->oobblock,
+					meminfo->writesize,
 					&written,
 					(unsigned char *) &data_buf);
 
@@ -505,16 +632,16 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
 			}
 		}
 
-		mtdoffset += meminfo->oobblock;
+		mtdoffset += meminfo->writesize;
 	}
 
 	if (!opts->quiet)
 		printf("\n");
 
 restoreoob:
-	if (oobinfochanged) {
-		memcpy(&meminfo->oobinfo, &old_oobinfo,
-		       sizeof(meminfo->oobinfo));
+	if (ecclayoutchanged) {
+		memcpy(&meminfo->ecclayout, &old_ecclayout,
+		       sizeof(meminfo->ecclayout));
 	}
 
 	if (imglen > 0) {
@@ -548,22 +675,22 @@ int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts)
 	int result;
 
 	/* make sure device page sizes are valid */
-	if (!(meminfo->oobsize == 16 && meminfo->oobblock == 512)
-	    && !(meminfo->oobsize == 8 && meminfo->oobblock == 256)
-	    && !(meminfo->oobsize == 64 && meminfo->oobblock == 2048)) {
+	if (!(meminfo->oobsize == 16 && meminfo->writesize == 512)
+	    && !(meminfo->oobsize == 8 && meminfo->writesize == 256)
+	    && !(meminfo->oobsize == 64 && meminfo->writesize == 2048)) {
 		printf("Unknown flash (not normal NAND)\n");
 		return -1;
 	}
 
-	pagelen = meminfo->oobblock
+	pagelen = meminfo->writesize
 		+ ((opts->readoob != 0) ? meminfo->oobsize : 0);
 
 	/* check, if length is not larger than device */
-	if (((imglen / pagelen) * meminfo->oobblock)
+	if (((imglen / pagelen) * meminfo->writesize)
 	     > (meminfo->size - opts->offset)) {
 		printf("Image %d bytes, NAND page %d bytes, "
 		       "OOB area %u bytes, device size %u bytes\n",
-		       imglen, pagelen, meminfo->oobblock, meminfo->size);
+		       imglen, pagelen, meminfo->writesize, meminfo->size);
 		printf("Input block is larger than device\n");
 		return -1;
 	}
@@ -621,7 +748,7 @@ int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts)
 		/* read page data to memory buffer */
 		result = meminfo->read(meminfo,
 				       mtdoffset,
-				       meminfo->oobblock,
+				       meminfo->writesize,
 				       &readlen,
 				       (unsigned char *) &data_buf);
 
@@ -685,7 +812,7 @@ int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts)
 			}
 		}
 
-		mtdoffset += meminfo->oobblock;
+		mtdoffset += meminfo->writesize;
 	}
 
 	if (!opts->quiet)
@@ -699,7 +826,10 @@ int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts)
 	/* return happy */
 	return 0;
 }
+#endif
 
+/* XXX U-BOOT XXX */
+#if 0
 /******************************************************************************
  * Support for locking / unlocking operations of some NAND devices
  *****************************************************************************/
@@ -784,7 +914,7 @@ int nand_get_lock_status(nand_info_t *meminfo, ulong offset)
 	this->select_chip(meminfo, chipnr);
 
 
-	if ((offset & (meminfo->oobblock - 1)) != 0) {
+	if ((offset & (meminfo->writesize - 1)) != 0) {
 		printf ("nand_get_lock_status: "
 			"Start address must be beginning of "
 			"nand page!\n");
@@ -813,7 +943,7 @@ int nand_get_lock_status(nand_info_t *meminfo, ulong offset)
  * @param meminfo	nand mtd instance
  * @param start		start byte address
  * @param length	number of bytes to unlock (must be a multiple of
- *			page size nand->oobblock)
+ *			page size nand->writesize)
  *
  * @return		0 on success, -1 in case of error
  */
@@ -839,14 +969,14 @@ int nand_unlock(nand_info_t *meminfo, ulong start, ulong length)
 		goto out;
 	}
 
-	if ((start & (meminfo->oobblock - 1)) != 0) {
+	if ((start & (meminfo->writesize - 1)) != 0) {
 		printf ("nand_unlock: Start address must be beginning of "
 			"nand page!\n");
 		ret = -1;
 		goto out;
 	}
 
-	if (length == 0 || (length & (meminfo->oobblock - 1)) != 0) {
+	if (length == 0 || (length & (meminfo->writesize - 1)) != 0) {
 		printf ("nand_unlock: Length must be a multiple of nand page "
 			"size!\n");
 		ret = -1;
@@ -875,5 +1005,6 @@ int nand_unlock(nand_info_t *meminfo, ulong start, ulong length)
 	this->select_chip(meminfo, -1);
 	return ret;
 }
+#endif
 
 #endif
author	William Juul <william.juul@datarespons.no>	2007-10-31 13:53:06 +0100
committer	Scott Wood <scottwood@freescale.com>	2008-08-12 11:31:15 -0500
commit	cfa460adfdefcc30d104e1a9ee44994ee349bb7b (patch)
tree	59400f96629aec9c968b0e3251628302824f5d35 /drivers
parent	cd82919e6c8a73b363a26f34b734923844e52d1c (diff)
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