drivers/mtd : move mtd drivers to drivers/mtd

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

8 files changed, 0 insertions, 6842 deletions

diff --git a/drivers/nand/Makefile b/drivers/nand/Makefile
deleted file mode 100644
index 42864f9..0000000
--- a/drivers/nand/Makefile
+++ /dev/null
@@ -1,51 +0,0 @@
-#
-# (C) Copyright 2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-include $(TOPDIR)/config.mk
-
-LIB 	:= $(obj)libnand.a
-
-COBJS-y += nand.o
-COBJS-y += nand_base.o
-COBJS-y += nand_ids.o
-COBJS-y += nand_ecc.o
-COBJS-y += nand_bbt.o
-COBJS-y += nand_util.o
-
-COBJS	:= $(COBJS-y)
-SRCS 	:= $(COBJS:.o=.c)
-OBJS 	:= $(addprefix $(obj),$(COBJS))
-
-all:	$(LIB)
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/drivers/nand/diskonchip.c b/drivers/nand/diskonchip.c
deleted file mode 100644
index e17af70..0000000
--- a/drivers/nand/diskonchip.c
+++ /dev/null
@@ -1,1787 +0,0 @@
-/*
- * drivers/mtd/nand/diskonchip.c
- *
- * (C) 2003 Red Hat, Inc.
- * (C) 2004 Dan Brown <dan_brown@ieee.org>
- * (C) 2004 Kalev Lember <kalev@smartlink.ee>
- *
- * Author: David Woodhouse <dwmw2@infradead.org>
- * Additional Diskonchip 2000 and Millennium support by Dan Brown <dan_brown@ieee.org>
- * Diskonchip Millennium Plus support by Kalev Lember <kalev@smartlink.ee>
- *
- * Error correction code lifted from the old docecc code
- * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
- * Copyright (C) 2000 Netgem S.A.
- * converted to the generic Reed-Solomon library by Thomas Gleixner <tglx@linutronix.de>
- *
- * Interface to generic NAND code for M-Systems DiskOnChip devices
- *
- * $Id: diskonchip.c,v 1.45 2005/01/05 18:05:14 dwmw2 Exp $
- */
-
-#include <common.h>
-
-#if !defined(CFG_NAND_LEGACY)
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/rslib.h>
-#include <linux/moduleparam.h>
-#include <asm/io.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/doc2000.h>
-#include <linux/mtd/compatmac.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/inftl.h>
-
-/* Where to look for the devices? */
-#ifndef CONFIG_MTD_DISKONCHIP_PROBE_ADDRESS
-#define CONFIG_MTD_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
-	0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000,
-	0xfffd0000, 0xfffd2000, 0xfffd4000, 0xfffd6000,
-	0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000,
-	0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000,
-	0xfffe8000, 0xfffea000, 0xfffec000, 0xfffee000,
-#else /*  CONFIG_MTD_DOCPROBE_HIGH */
-	0xc8000, 0xca000, 0xcc000, 0xce000,
-	0xd0000, 0xd2000, 0xd4000, 0xd6000,
-	0xd8000, 0xda000, 0xdc000, 0xde000,
-	0xe0000, 0xe2000, 0xe4000, 0xe6000,
-	0xe8000, 0xea000, 0xec000, 0xee000,
-#endif /*  CONFIG_MTD_DOCPROBE_HIGH */
-#elif defined(__PPC__)
-	0xe4000000,
-#elif defined(CONFIG_MOMENCO_OCELOT)
-	0x2f000000,
-	0xff000000,
-#elif defined(CONFIG_MOMENCO_OCELOT_G) || defined (CONFIG_MOMENCO_OCELOT_C)
-	0xff000000,
-##else
-#warning Unknown architecture for DiskOnChip. No default probe locations defined
-#endif
-	0xffffffff };
-
-static struct mtd_info *doclist = NULL;
-
-struct doc_priv {
-	void __iomem *virtadr;
-	unsigned long physadr;
-	u_char ChipID;
-	u_char CDSNControl;
-	int chips_per_floor; /* The number of chips detected on each floor */
-	int curfloor;
-	int curchip;
-	int mh0_page;
-	int mh1_page;
-	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 };
-
-#define INFTL_BBT_RESERVED_BLOCKS 4
-
-#define DoC_is_MillenniumPlus(doc) ((doc)->ChipID == DOC_ChipID_DocMilPlus16 || (doc)->ChipID == DOC_ChipID_DocMilPlus32)
-#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_select_chip(struct mtd_info *mtd, int chip);
-
-static int debug=0;
-module_param(debug, int, 0);
-
-static int try_dword=1;
-module_param(try_dword, int, 0);
-
-static int no_ecc_failures=0;
-module_param(no_ecc_failures, int, 0);
-
-#ifdef CONFIG_MTD_PARTITIONS
-static int no_autopart=0;
-module_param(no_autopart, int, 0);
-#endif
-
-#ifdef MTD_NAND_DISKONCHIP_BBTWRITE
-static int inftl_bbt_write=1;
-#else
-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;
-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 */
-#define NB_DATA (((SECTOR_SIZE + 1) * 8 + 6) / 10)
-/* Number of roots */
-#define NROOTS 4
-/* First consective root */
-#define FCR 510
-/* Number of symbols */
-#define NN 1023
-
-/* the Reed Solomon control structure */
-static struct rs_control *rs_decoder;
-
-/*
- * The HW decoder in the DoC ASIC's provides us a error syndrome,
- * which we must convert to a standard syndrom usable by the generic
- * Reed-Solomon library code.
- *
- * Fabrice Bellard figured this out in the old docecc code. I added
- * 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)
-{
-	int i, j, nerr, errpos[8];
-	uint8_t parity;
-	uint16_t ds[4], s[5], tmp, errval[8], syn[4];
-
-	/* Convert the ecc bytes into words */
-	ds[0] = ((ecc[4] & 0xff) >> 0) | ((ecc[5] & 0x03) << 8);
-	ds[1] = ((ecc[5] & 0xfc) >> 2) | ((ecc[2] & 0x0f) << 6);
-	ds[2] = ((ecc[2] & 0xf0) >> 4) | ((ecc[3] & 0x3f) << 4);
-	ds[3] = ((ecc[3] & 0xc0) >> 6) | ((ecc[0] & 0xff) << 2);
-	parity = ecc[1];
-
-	/* Initialize the syndrom buffer */
-	for (i = 0; i < NROOTS; i++)
-		s[i] = ds[0];
-	/*
-	 *  Evaluate
-	 *  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)
-			continue;
-		tmp = rs->index_of[ds[j]];
-		for(i = 0; i < NROOTS; i++)
-			s[i] ^= rs->alpha_to[rs_modnn(rs, tmp + (FCR + i) * j)];
-	}
-
-	/* Calc s[i] = s[i] / alpha^(v + i) */
-	for (i = 0; i < NROOTS; i++) {
-		if (syn[i])
- 			syn[i] = rs_modnn(rs, rs->index_of[s[i]] + (NN - FCR - i));
-	}
-	/* Call the decoder library */
-	nerr = decode_rs16(rs, NULL, NULL, 1019, syn, 0, errpos, 0, errval);
-
-	/* Incorrectable errors ? */
-	if (nerr < 0)
-		return nerr;
-
-	/*
-	 * Correct the errors. The bitpositions are a bit of magic,
-	 * but they are given by the design of the de/encoder circuit
-	 * in the DoC ASIC's.
-	 */
-	for(i = 0;i < nerr; i++) {
-		int index, bitpos, pos = 1015 - errpos[i];
-		uint8_t val;
-		if (pos >= NB_DATA && pos < 1019)
-			continue;
-		if (pos < NB_DATA) {
-			/* extract bit position (MSB first) */
-			pos = 10 * (NB_DATA - 1 - pos) - 6;
-			/* now correct the following 10 bits. At most two bytes
-			   can be modified since pos is even */
-			index = (pos >> 3) ^ 1;
-			bitpos = pos & 7;
-			if ((index >= 0 && index < SECTOR_SIZE) ||
-			    index == (SECTOR_SIZE + 1)) {
-				val = (uint8_t) (errval[i] >> (2 + bitpos));
-				parity ^= val;
-				if (index < SECTOR_SIZE)
-					data[index] ^= val;
-			}
-			index = ((pos >> 3) + 1) ^ 1;
-			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));
-				parity ^= val;
-				if (index < SECTOR_SIZE)
-					data[index] ^= val;
-			}
-		}
-	}
-	/* If the parity is wrong, no rescue possible */
-	return parity ? -1 : nerr;
-}
-
-static void DoC_Delay(struct doc_priv *doc, unsigned short cycles)
-{
-	volatile char dummy;
-	int i;
-
-	for (i = 0; i < cycles; i++) {
-		if (DoC_is_Millennium(doc))
-			dummy = ReadDOC(doc->virtadr, NOP);
-		else if (DoC_is_MillenniumPlus(doc))
-			dummy = ReadDOC(doc->virtadr, Mplus_NOP);
-		else
-			dummy = ReadDOC(doc->virtadr, DOCStatus);
-	}
-
-}
-
-#define CDSN_CTRL_FR_B_MASK	(CDSN_CTRL_FR_B0 | CDSN_CTRL_FR_B1)
-
-/* DOC_WaitReady: Wait for RDY line to be asserted by the flash chip */
-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");
-	/* 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) {
-			if (time_after(jiffies, timeo)) {
-				printk("_DoC_WaitReady timed out.\n");
-				return -EIO;
-			}
-			udelay(1);
-			cond_resched();
-		}
-	} else {
-		while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
-			if (time_after(jiffies, timeo)) {
-				printk("_DoC_WaitReady timed out.\n");
-				return -EIO;
-			}
-			udelay(1);
-			cond_resched();
-		}
-	}
-
-	return 0;
-}
-
-static inline int DoC_WaitReady(struct doc_priv *doc)
-{
-	void __iomem *docptr = doc->virtadr;
-	int ret = 0;
-
-	if (DoC_is_MillenniumPlus(doc)) {
-		DoC_Delay(doc, 4);
-
-		if ((ReadDOC(docptr, Mplus_FlashControl) & CDSN_CTRL_FR_B_MASK) != CDSN_CTRL_FR_B_MASK)
-			/* Call the out-of-line routine to wait */
-			ret = _DoC_WaitReady(doc);
-	} else {
-		DoC_Delay(doc, 4);
-
-		if (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B))
-			/* Call the out-of-line routine to wait */
-			ret = _DoC_WaitReady(doc);
-		DoC_Delay(doc, 2);
-	}
-
-	if(debug) printk("DoC_WaitReady OK\n");
-	return ret;
-}
-
-static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-
-	if(debug)printk("write_byte %02x\n", datum);
-	WriteDOC(datum, docptr, CDSNSlowIO);
-	WriteDOC(datum, docptr, 2k_CDSN_IO);
-}
-
-static u_char doc2000_read_byte(struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-	u_char ret;
-
-	ReadDOC(docptr, CDSNSlowIO);
-	DoC_Delay(doc, 2);
-	ret = ReadDOC(docptr, 2k_CDSN_IO);
-	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)
-{
-	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++) {
-		WriteDOC_(buf[i], docptr, DoC_2k_CDSN_IO + i);
-		if (debug && i < 16)
-			printk("%02x ", buf[i]);
-	}
-	if (debug) printk("\n");
-}
-
-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);
-
-	for (i=0; i < len; i++) {
-		buf[i] = ReadDOC(docptr, 2k_CDSN_IO + i);
-	}
-}
-
-static void doc2000_readbuf_dword(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_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);
-		}
-	} else {
-		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)
-{
-	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++)
-		if (buf[i] != ReadDOC(docptr, 2k_CDSN_IO))
-			return -EFAULT;
-	return 0;
-}
-
-static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	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);
-
-	ret = this->read_byte(mtd) << 8;
-	ret |= this->read_byte(mtd);
-
-	if (doc->ChipID == DOC_ChipID_Doc2k && try_dword && !nr) {
-		/* First chip probe. See if we get same results by 32-bit access */
-		union {
-			uint32_t dword;
-			uint8_t byte[4];
-		} 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);
-
-		ident.dword = readl(docptr + DoC_2k_CDSN_IO);
-		if (((ident.byte[0] << 8) | ident.byte[1]) == ret) {
-			printk(KERN_INFO "DiskOnChip 2000 responds to DWORD access\n");
-			this->read_buf = &doc2000_readbuf_dword;
-		}
-	}
-
-	return ret;
-}
-
-static void __init doc2000_count_chips(struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	uint16_t mfrid;
-	int i;
-
-	/* Max 4 chips per floor on DiskOnChip 2000 */
-	doc->chips_per_floor = 4;
-
-	/* Find out what the first chip is */
-	mfrid = doc200x_ident_chip(mtd, 0);
-
-	/* Find how many chips in each floor. */
-	for (i = 1; i < 4; i++) {
-		if (doc200x_ident_chip(mtd, i) != mfrid)
-			break;
-	}
-	doc->chips_per_floor = i;
-	printk(KERN_DEBUG "Detected %d chips per floor.\n", i);
-}
-
-static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
-{
-	struct doc_priv *doc = this->priv;
-
-	int status;
-
-	DoC_WaitReady(doc);
-	this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
-	DoC_WaitReady(doc);
-	status = (int)this->read_byte(mtd);
-
-	return status;
-}
-
-static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-
-	WriteDOC(datum, docptr, CDSNSlowIO);
-	WriteDOC(datum, docptr, Mil_CDSN_IO);
-	WriteDOC(datum, docptr, WritePipeTerm);
-}
-
-static u_char doc2001_read_byte(struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-
-	/*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, LastDataRead);
-}
-
-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++)
-		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)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-	int i;
-
-	/* Start read pipeline */
-	ReadDOC(docptr, ReadPipeInit);
-
-	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)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-	int i;
-
-	/* Start read pipeline */
-	ReadDOC(docptr, ReadPipeInit);
-
-	for (i=0; i < len-1; i++)
-		if (buf[i] != ReadDOC(docptr, Mil_CDSN_IO)) {
-			ReadDOC(docptr, LastDataRead);
-			return i;
-		}
-	if (buf[i] != ReadDOC(docptr, LastDataRead))
-		return i;
-	return 0;
-}
-
-static u_char doc2001plus_read_byte(struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-	u_char ret;
-
-	ReadDOC(docptr, Mplus_ReadPipeInit);
-	ReadDOC(docptr, Mplus_ReadPipeInit);
-	ret = ReadDOC(docptr, Mplus_LastDataRead);
-	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)
-{
-	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++) {
-		WriteDOC_(buf[i], docptr, DoC_Mil_CDSN_IO + i);
-		if (debug && i < 16)
-			printk("%02x ", buf[i]);
-	}
-	if (debug) printk("\n");
-}
-
-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);
-
-	/* Start read pipeline */
-	ReadDOC(docptr, Mplus_ReadPipeInit);
-	ReadDOC(docptr, Mplus_ReadPipeInit);
-
-	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);
-	if (debug && i < 16)
-		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");
-}
-
-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);
-
-	/* Start read pipeline */
-	ReadDOC(docptr, Mplus_ReadPipeInit);
-	ReadDOC(docptr, Mplus_ReadPipeInit);
-
-	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;
-	return 0;
-}
-
-static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-	int floor = 0;
-
-	if(debug)printk("select chip (%d)\n", chip);
-
-	if (chip == -1) {
-		/* Disable flash internally */
-		WriteDOC(0, docptr, Mplus_FlashSelect);
-		return;
-	}
-
-	floor = chip / doc->chips_per_floor;
-	chip -= (floor *  doc->chips_per_floor);
-
-	/* Assert ChipEnable and deassert WriteProtect */
-	WriteDOC((DOC_FLASH_CE), docptr, Mplus_FlashSelect);
-	this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
-
-	doc->curchip = chip;
-	doc->curfloor = floor;
-}
-
-static void doc200x_select_chip(struct mtd_info *mtd, int chip)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-	int floor = 0;
-
-	if(debug)printk("select chip (%d)\n", chip);
-
-	if (chip == -1)
-		return;
-
-	floor = chip / doc->chips_per_floor;
-	chip -= (floor *  doc->chips_per_floor);
-
-	/* 11.4.4 -- deassert CE before changing chip */
-	doc200x_hwcontrol(mtd, NAND_CTL_CLRNCE);
-
-	WriteDOC(floor, docptr, FloorSelect);
-	WriteDOC(chip, docptr, CDSNDeviceSelect);
-
-	doc200x_hwcontrol(mtd, NAND_CTL_SETNCE);
-
-	doc->curchip = chip;
-	doc->curfloor = floor;
-}
-
-static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd)
-{
-	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 (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)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-
-	/*
-	 * Must terminate write pipeline before sending any commands
-	 * to the device.
-	 */
-	if (command == NAND_CMD_PAGEPROG) {
-		WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
-		WriteDOC(0x00, docptr, Mplus_WritePipeTerm);
-	}
-
-	/*
-	 * Write out the command to the device.
-	 */
-	if (command == NAND_CMD_SEQIN) {
-		int readcmd;
-
-		if (column >= mtd->oobblock) {
-			/* OOB area */
-			column -= mtd->oobblock;
-			readcmd = NAND_CMD_READOOB;
-		} else if (column < 256) {
-			/* First 256 bytes --> READ0 */
-			readcmd = NAND_CMD_READ0;
-		} else {
-			column -= 256;
-			readcmd = NAND_CMD_READ1;
-		}
-		WriteDOC(readcmd, docptr, Mplus_FlashCmd);
-	}
-	WriteDOC(command, docptr, Mplus_FlashCmd);
-	WriteDOC(0, docptr, Mplus_WritePipeTerm);
-	WriteDOC(0, docptr, Mplus_WritePipeTerm);
-
-	if (column != -1 || page_addr != -1) {
-		/* Serially input address */
-		if (column != -1) {
-			/* Adjust columns for 16 bit buswidth */
-			if (this->options & NAND_BUSWIDTH_16)
-				column >>= 1;
-			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);
-			/* One more address cycle for higher density devices */
-			if (this->chipsize & 0x0c000000) {
-				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)
-			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:
-	case NAND_CMD_ERASE1:
-	case NAND_CMD_ERASE2:
-	case NAND_CMD_SEQIN:
-	case NAND_CMD_STATUS:
-		return;
-
-	case NAND_CMD_RESET:
-		if (this->dev_ready)
-			break;
-		udelay(this->chip_delay);
-		WriteDOC(NAND_CMD_STATUS, docptr, Mplus_FlashCmd);
-		WriteDOC(0, docptr, Mplus_WritePipeTerm);
-		WriteDOC(0, docptr, Mplus_WritePipeTerm);
-		while ( !(this->read_byte(mtd) & 0x40));
-		return;
-
-	/* 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);
-			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));
-}
-
-static int doc200x_dev_ready(struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-
-	if (DoC_is_MillenniumPlus(doc)) {
-		/* 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)
-				printk("not ready\n");
-			return 0;
-		}
-		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)
-				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");
-		return 1;
-	}
-}
-
-static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
-{
-	/* This is our last resort if we couldn't find or create a BBT.  Just
-	   pretend all blocks are good. */
-	return 0;
-}
-
-static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-
-	/* Prime the ECC engine */
-	switch(mode) {
-	case NAND_ECC_READ:
-		WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
-		WriteDOC(DOC_ECC_EN, docptr, ECCConf);
-		break;
-	case NAND_ECC_WRITE:
-		WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
-		WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, ECCConf);
-		break;
-	}
-}
-
-static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-
-	/* Prime the ECC engine */
-	switch(mode) {
-	case NAND_ECC_READ:
-		WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
-		WriteDOC(DOC_ECC_EN, docptr, Mplus_ECCConf);
-		break;
-	case NAND_ECC_WRITE:
-		WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf);
-		WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, Mplus_ECCConf);
-		break;
-	}
-}
-
-/* This code is only called on write */
-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;
-	void __iomem *docptr = doc->virtadr;
-	int i;
-	int emptymatch = 1;
-
-	/* flush the pipeline */
-	if (DoC_is_2000(doc)) {
-		WriteDOC(doc->CDSNControl & ~CDSN_CTRL_FLASH_IO, docptr, CDSNControl);
-		WriteDOC(0, docptr, 2k_CDSN_IO);
-		WriteDOC(0, docptr, 2k_CDSN_IO);
-		WriteDOC(0, docptr, 2k_CDSN_IO);
-		WriteDOC(doc->CDSNControl, docptr, CDSNControl);
-	} else if (DoC_is_MillenniumPlus(doc)) {
-		WriteDOC(0, docptr, Mplus_NOP);
-		WriteDOC(0, docptr, Mplus_NOP);
-		WriteDOC(0, docptr, Mplus_NOP);
-	} else {
-		WriteDOC(0, docptr, NOP);
-		WriteDOC(0, docptr, NOP);
-		WriteDOC(0, docptr, NOP);
-	}
-
-	for (i = 0; i < 6; i++) {
-		if (DoC_is_MillenniumPlus(doc))
-			ecc_code[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i);
-		else
-			ecc_code[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i);
-		if (ecc_code[i] != empty_write_ecc[i])
-			emptymatch = 0;
-	}
-	if (DoC_is_MillenniumPlus(doc))
-		WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf);
-	else
-		WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
-#if 0
-	/* If emptymatch=1, we might have an all-0xff data buffer.  Check. */
-	if (emptymatch) {
-		/* Note: this somewhat expensive test should not be triggered
-		   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;
-			emptymatch = 0;
-			break;
-		}
-	}
-	/* 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);
-#endif
-	return 0;
-}
-
-static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
-{
-	int i, ret = 0;
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	void __iomem *docptr = doc->virtadr;
-	volatile u_char dummy;
-	int emptymatch = 1;
-
-	/* flush the pipeline */
-	if (DoC_is_2000(doc)) {
-		dummy = ReadDOC(docptr, 2k_ECCStatus);
-		dummy = ReadDOC(docptr, 2k_ECCStatus);
-		dummy = ReadDOC(docptr, 2k_ECCStatus);
-	} else if (DoC_is_MillenniumPlus(doc)) {
-		dummy = ReadDOC(docptr, Mplus_ECCConf);
-		dummy = ReadDOC(docptr, Mplus_ECCConf);
-		dummy = ReadDOC(docptr, Mplus_ECCConf);
-	} else {
-		dummy = ReadDOC(docptr, ECCConf);
-		dummy = ReadDOC(docptr, ECCConf);
-		dummy = ReadDOC(docptr, ECCConf);
-	}
-
-	/* Error occured ? */
-	if (dummy & 0x80) {
-		for (i = 0; i < 6; i++) {
-			if (DoC_is_MillenniumPlus(doc))
-				calc_ecc[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i);
-			else
-				calc_ecc[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i);
-			if (calc_ecc[i] != empty_read_syndrome[i])
-				emptymatch = 0;
-		}
-		/* If emptymatch=1, the read syndrome is consistent with an
-		   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;
-				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. */
-			for (i = 0; i < 512; i++) {
-				if (dat[i] == 0xff) continue;
-				emptymatch = 0;
-				break;
-			}
-		}
-		/* If emptymatch still =1, this is almost certainly a freshly-
-		   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 (ret > 0)
-			printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret);
-	}
-	if (DoC_is_MillenniumPlus(doc))
-		WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf);
-	else
-		WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
-	if (no_ecc_failures && (ret == -1)) {
-		printk(KERN_ERR "suppressing ECC failure\n");
-		ret = 0;
-	}
-	return ret;
-}
-
-/*u_char mydatabuf[528]; */
-
-static struct nand_oobinfo doc200x_oobinfo = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
-	.eccbytes = 6,
-	.eccpos = {0, 1, 2, 3, 4, 5},
-	.oobfree = { {8, 8} }
-};
-
-/* Find the (I)NFTL Media Header, and optionally also the mirror media header.
-   On sucessful return, buf will contain a copy of the media header for
-   further processing.  id is the string to scan for, and will presumably be
-   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)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	unsigned offs, end = (MAX_MEDIAHEADER_SCAN << this->phys_erase_shift);
-	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;
-		if (ret) {
-			printk(KERN_WARNING "ECC error scanning DOC at 0x%x\n",
-				offs);
-		}
-		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;
-			continue;
-		}
-		doc->mh1_page = offs >> this->page_shift;
-		return 2;
-	}
-	if (doc->mh0_page == -1) {
-		printk(KERN_WARNING "DiskOnChip %s Media Header not found.\n", id);
-		return 0;
-	}
-	/* 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) {
-		/* Insanity.  Give up. */
-		printk(KERN_ERR "Read DiskOnChip Media Header once, but can't reread it???\n");
-		return 0;
-	}
-	return 1;
-}
-
-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;
-	int ret = 0;
-	u_char *buf;
-	struct NFTLMediaHeader *mh;
-	const unsigned psize = 1 << this->page_shift;
-	unsigned blocks, maxblocks;
-	int offs, numheaders;
-
-	buf = kmalloc(mtd->oobblock, 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;
-
-/*#ifdef CONFIG_MTD_DEBUG_VERBOSE */
-/*	if (CONFIG_MTD_DEBUG_VERBOSE >= 2) */
-	printk(KERN_INFO "    DataOrgID        = %s\n"
-			 "    NumEraseUnits    = %d\n"
-			 "    FirstPhysicalEUN = %d\n"
-			 "    FormattedSize    = %d\n"
-			 "    UnitSizeFactor   = %d\n",
-		mh->DataOrgID, mh->NumEraseUnits,
-		mh->FirstPhysicalEUN, mh->FormattedSize,
-		mh->UnitSizeFactor);
-/*#endif */
-
-	blocks = mtd->size >> this->phys_erase_shift;
-	maxblocks = min(32768U, mtd->erasesize - psize);
-
-	if (mh->UnitSizeFactor == 0x00) {
-		/* 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).
-		*/
-		mh->UnitSizeFactor = 0xff;
-		while (blocks > maxblocks) {
-			blocks >>= 1;
-			maxblocks = min(32768U, (maxblocks << 1) + psize);
-			mh->UnitSizeFactor--;
-		}
-		printk(KERN_WARNING "UnitSizeFactor=0x00 detected.  Correct value is assumed to be 0x%02x.\n", mh->UnitSizeFactor);
-	}
-
-	/* NOTE: The lines below modify internal variables of the NAND and MTD
-	   layers; variables with have already been configured by nand_scan.
-	   Unfortunately, we didn't know before this point what these values
-	   should be.  Thus, this code is somewhat dependant on the exact
-	   implementation of the NAND layer.  */
-	if (mh->UnitSizeFactor != 0xff) {
-		this->bbt_erase_shift += (0xff - mh->UnitSizeFactor);
-		mtd->erasesize <<= (0xff - mh->UnitSizeFactor);
-		printk(KERN_INFO "Setting virtual erase size to %d\n", mtd->erasesize);
-		blocks = mtd->size >> this->bbt_erase_shift;
-		maxblocks = min(32768U, mtd->erasesize - psize);
-	}
-
-	if (blocks > maxblocks) {
-		printk(KERN_ERR "UnitSizeFactor of 0x%02x is inconsistent with device size.  Aborting.\n", mh->UnitSizeFactor);
-		goto out;
-	}
-
-	/* Skip past the media headers. */
-	offs = max(doc->mh0_page, doc->mh1_page);
-	offs <<= this->page_shift;
-	offs += mtd->erasesize;
-
-	/*parts[0].name = " DiskOnChip Boot / Media Header partition"; */
-	/*parts[0].offset = 0; */
-	/*parts[0].size = offs; */
-
-	parts[0].name = " DiskOnChip BDTL partition";
-	parts[0].offset = offs;
-	parts[0].size = (mh->NumEraseUnits - numheaders) << this->bbt_erase_shift;
-
-	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;
-	}
-	ret = 1;
-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)
-{
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	int ret = 0;
-	u_char *buf;
-	struct INFTLMediaHeader *mh;
-	struct INFTLPartition *ip;
-	int numparts = 0;
-	int blocks;
-	int vshift, lastvunit = 0;
-	int i;
-	int end = mtd->size;
-
-	if (inftl_bbt_write)
-		end -= (INFTL_BBT_RESERVED_BLOCKS << this->phys_erase_shift);
-
-	buf = kmalloc(mtd->oobblock, GFP_KERNEL);
-	if (!buf) {
-		printk(KERN_ERR "DiskOnChip mediaheader kmalloc failed!\n");
-		return 0;
-	}
-
-	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->NoOfBootImageBlocks = le32_to_cpu(mh->NoOfBootImageBlocks);
-	mh->NoOfBinaryPartitions = le32_to_cpu(mh->NoOfBinaryPartitions);
-	mh->NoOfBDTLPartitions = le32_to_cpu(mh->NoOfBDTLPartitions);
-	mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits);
-	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"
-			 "    NoOfBDTLPartitions    = %d\n"
-			 "    BlockMultiplerBits    = %d\n"
-			 "    FormatFlgs            = %d\n"
-			 "    OsakVersion           = %d.%d.%d.%d\n"
-			 "    PercentUsed           = %d\n",
-		mh->bootRecordID, mh->NoOfBootImageBlocks,
-		mh->NoOfBinaryPartitions,
-		mh->NoOfBDTLPartitions,
-		mh->BlockMultiplierBits, mh->FormatFlags,
-		((unsigned char *) &mh->OsakVersion)[0] & 0xf,
-		((unsigned char *) &mh->OsakVersion)[1] & 0xf,
-		((unsigned char *) &mh->OsakVersion)[2] & 0xf,
-		((unsigned char *) &mh->OsakVersion)[3] & 0xf,
-		mh->PercentUsed);
-/*#endif */
-
-	vshift = this->phys_erase_shift + mh->BlockMultiplierBits;
-
-	blocks = mtd->size >> vshift;
-	if (blocks > 32768) {
-		printk(KERN_ERR "BlockMultiplierBits=%d is inconsistent with device size.  Aborting.\n", mh->BlockMultiplierBits);
-		goto out;
-	}
-
-	blocks = doc->chips_per_floor << (this->chip_shift - this->phys_erase_shift);
-	if (inftl_bbt_write && (blocks > mtd->erasesize)) {
-		printk(KERN_ERR "Writeable BBTs spanning more than one erase block are not yet supported.  FIX ME!\n");
-		goto out;
-	}
-
-	/* Scan the partitions */
-	for (i = 0; (i < 4); i++) {
-		ip = &(mh->Partitions[i]);
-		ip->virtualUnits = le32_to_cpu(ip->virtualUnits);
-		ip->firstUnit = le32_to_cpu(ip->firstUnit);
-		ip->lastUnit = le32_to_cpu(ip->lastUnit);
-		ip->flags = le32_to_cpu(ip->flags);
-		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"
-			"        lastUnit        = %d\n"
-			"        flags           = 0x%x\n"
-			"        spareUnits      = %d\n",
-			i, ip->virtualUnits, ip->firstUnit,
-			ip->lastUnit, ip->flags,
-			ip->spareUnits);
-/*#endif */
-
-/*
-		if ((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";
-		else
-			parts[numparts].name = " DiskOnChip BDTL partition";
-		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;
-	}
-	lastvunit++;
-	if ((lastvunit << vshift) < end) {
-		parts[numparts].name = " DiskOnChip Remainder partition";
-		parts[numparts].offset = lastvunit << vshift;
-		parts[numparts].size = end - parts[numparts].offset;
-		numparts++;
-	}
-	ret = numparts;
-out:
-	kfree(buf);
-	return ret;
-}
-
-static int __init nftl_scan_bbt(struct mtd_info *mtd)
-{
-	int ret, numparts;
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	struct mtd_partition parts[2];
-
-	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;
-	this->bbt_td->options = NAND_BBT_ABSPAGE | NAND_BBT_8BIT |
-				NAND_BBT_SAVECONTENT | NAND_BBT_WRITE |
-				NAND_BBT_VERSION;
-	this->bbt_td->veroffs = 7;
-	this->bbt_td->pages[0] = doc->mh0_page + 1;
-	if (doc->mh1_page != -1) {
-		this->bbt_md->options = NAND_BBT_ABSPAGE | NAND_BBT_8BIT |
-					NAND_BBT_SAVECONTENT | NAND_BBT_WRITE |
-					NAND_BBT_VERSION;
-		this->bbt_md->veroffs = 7;
-		this->bbt_md->pages[0] = doc->mh1_page + 1;
-	} else {
-		this->bbt_md = NULL;
-	}
-
-	/* It's safe to set bd=NULL below because NAND_BBT_CREATE is not set.
-	   At least as nand_bbt.c is currently written. */
-	if ((ret = nand_scan_bbt(mtd, NULL)))
-		return ret;
-	add_mtd_device(mtd);
-#ifdef CONFIG_MTD_PARTITIONS
-	if (!no_autopart)
-		add_mtd_partitions(mtd, parts, numparts);
-#endif
-	return 0;
-}
-
-static int __init inftl_scan_bbt(struct mtd_info *mtd)
-{
-	int ret, numparts;
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
-	struct mtd_partition parts[5];
-
-	if (this->numchips > doc->chips_per_floor) {
-		printk(KERN_ERR "Multi-floor INFTL devices not yet supported.\n");
-		return -EIO;
-	}
-
-	if (DoC_is_MillenniumPlus(doc)) {
-		this->bbt_td->options = NAND_BBT_2BIT | NAND_BBT_ABSPAGE;
-		if (inftl_bbt_write)
-			this->bbt_td->options |= NAND_BBT_WRITE;
-		this->bbt_td->pages[0] = 2;
-		this->bbt_md = NULL;
-	} else {
-		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;
-		this->bbt_td->len = 8;
-		this->bbt_td->veroffs = 7;
-		this->bbt_td->maxblocks = INFTL_BBT_RESERVED_BLOCKS;
-		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;
-		if (inftl_bbt_write)
-			this->bbt_md->options |= NAND_BBT_WRITE;
-		this->bbt_md->offs = 8;
-		this->bbt_md->len = 8;
-		this->bbt_md->veroffs = 7;
-		this->bbt_md->maxblocks = INFTL_BBT_RESERVED_BLOCKS;
-		this->bbt_md->reserved_block_code = 0x01;
-		this->bbt_md->pattern = "TBB_SYSM";
-	}
-
-	/* It's safe to set bd=NULL below because NAND_BBT_CREATE is not set.
-	   At least as nand_bbt.c is currently written. */
-	if ((ret = nand_scan_bbt(mtd, NULL)))
-		return ret;
-	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;
-	add_mtd_device(mtd);
-#ifdef CONFIG_MTD_PARTITIONS
-	if (!no_autopart)
-		add_mtd_partitions(mtd, parts, numparts);
-#endif
-	return 0;
-}
-
-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;
-	this->verify_buf = doc2000_verifybuf;
-	this->scan_bbt = nftl_scan_bbt;
-
-	doc->CDSNControl = CDSN_CTRL_FLASH_IO | CDSN_CTRL_ECC_IO;
-	doc2000_count_chips(mtd);
-	mtd->name = "DiskOnChip 2000 (NFTL Model)";
-	return (4 * doc->chips_per_floor);
-}
-
-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;
-	this->verify_buf = doc2001_verifybuf;
-
-	ReadDOC(doc->virtadr, ChipID);
-	ReadDOC(doc->virtadr, ChipID);
-	ReadDOC(doc->virtadr, ChipID);
-	if (ReadDOC(doc->virtadr, ChipID) != DOC_ChipID_DocMil) {
-		/* It's not a Millennium; it's one of the newer
-		   DiskOnChip 2000 units with a similar ASIC.
-		   Treat it like a Millennium, except that it
-		   can have multiple chips. */
-		doc2000_count_chips(mtd);
-		mtd->name = "DiskOnChip 2000 (INFTL Model)";
-		this->scan_bbt = inftl_scan_bbt;
-		return (4 * doc->chips_per_floor);
-	} else {
-		/* Bog-standard Millennium */
-		doc->chips_per_floor = 1;
-		mtd->name = "DiskOnChip Millennium";
-		this->scan_bbt = nftl_scan_bbt;
-		return 1;
-	}
-}
-
-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->select_chip = doc2001plus_select_chip;
-	this->cmdfunc = doc2001plus_command;
-	this->enable_hwecc = doc2001plus_enable_hwecc;
-
-	doc->chips_per_floor = 1;
-	mtd->name = "DiskOnChip Millennium Plus";
-
-	return 1;
-}
-
-static inline int __init doc_probe(unsigned long physadr)
-{
-	unsigned char ChipID;
-	struct mtd_info *mtd;
-	struct nand_chip *nand;
-	struct doc_priv *doc;
-	void __iomem *virtadr;
-	unsigned char save_control;
-	unsigned char tmp, tmpb, tmpc;
-	int reg, len, numchips;
-	int ret = 0;
-
-	virtadr = ioremap(physadr, DOC_IOREMAP_LEN);
-	if (!virtadr) {
-		printk(KERN_ERR "Diskonchip ioremap failed: 0x%x bytes at 0x%lx\n", DOC_IOREMAP_LEN, physadr);
-		return -EIO;
-	}
-
-	/* It's not possible to cleanly detect the DiskOnChip - the
-	 * bootup procedure will put the device into reset mode, and
-	 * it's not possible to talk to it without actually writing
-	 * to the DOCControl register. So we store the current contents
-	 * of the DOCControl register's location, in case we later decide
-	 * that it's not a DiskOnChip, and want to put it back how we
-	 * found it.
-	 */
-	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);
-
-	/* 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);
-
-	ChipID = ReadDOC(virtadr, ChipID);
-
-	switch(ChipID) {
-	case DOC_ChipID_Doc2k:
-		reg = DoC_2k_ECCStatus;
-		break;
-	case DOC_ChipID_DocMil:
-		reg = DoC_ECCConf;
-		break;
-	case DOC_ChipID_DocMilPlus16:
-	case DOC_ChipID_DocMilPlus32:
-	case 0:
-		/* Possible Millennium Plus, need to do more checks */
-		/* Possibly release from power down mode */
-		for (tmp = 0; (tmp < 4); tmp++)
-			ReadDOC(virtadr, Mplus_Power);
-
-		/* Reset the Millennium Plus ASIC */
-		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;
-		WriteDOC(tmp, virtadr, Mplus_DOCControl);
-		WriteDOC(~tmp, virtadr, Mplus_CtrlConfirm);
-		mdelay(1);
-
-		ChipID = ReadDOC(virtadr, ChipID);
-
-		switch (ChipID) {
-		case DOC_ChipID_DocMilPlus16:
-			reg = DoC_Mplus_Toggle;
-			break;
-		case DOC_ChipID_DocMilPlus32:
-			printk(KERN_ERR "DiskOnChip Millennium Plus 32MB is not supported, ignoring.\n");
-		default:
-			ret = -ENODEV;
-			goto notfound;
-		}
-		break;
-
-	default:
-		ret = -ENODEV;
-		goto notfound;
-	}
-	/* Check the TOGGLE bit in the ECC register */
-	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)) {
-		printk(KERN_WARNING "Possible DiskOnChip at 0x%lx failed TOGGLE test, dropping.\n", physadr);
-		ret = -ENODEV;
-		goto notfound;
-	}
-
-	for (mtd = doclist; mtd; mtd = doc->nextdoc) {
-		unsigned char oldval;
-		unsigned char newval;
-		nand = mtd->priv;
-		doc = nand->priv;
-		/* Use the alias resolution register to determine if this is
-		   in fact the same DOC aliased to a new address.  If writes
-		   to one chip's alias resolution register change the value on
-		   the other chip, they're the same chip. */
-		if (ChipID == DOC_ChipID_DocMilPlus16) {
-			oldval = ReadDOC(doc->virtadr, Mplus_AliasResolution);
-			newval = ReadDOC(virtadr, Mplus_AliasResolution);
-		} else {
-			oldval = ReadDOC(doc->virtadr, AliasResolution);
-			newval = ReadDOC(virtadr, AliasResolution);
-		}
-		if (oldval != newval)
-			continue;
-		if (ChipID == DOC_ChipID_DocMilPlus16) {
-			WriteDOC(~newval, virtadr, Mplus_AliasResolution);
-			oldval = ReadDOC(doc->virtadr, Mplus_AliasResolution);
-			WriteDOC(newval, virtadr, Mplus_AliasResolution); /* restore it */
-		} else {
-			WriteDOC(~newval, virtadr, AliasResolution);
-			oldval = ReadDOC(doc->virtadr, AliasResolution);
-			WriteDOC(newval, virtadr, AliasResolution); /* restore it */
-		}
-		newval = ~newval;
-		if (oldval == newval) {
-			printk(KERN_DEBUG "Found alias of DOC at 0x%lx to 0x%lx\n", doc->physadr, physadr);
-			goto notfound;
-		}
-	}
-
-	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);
-	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);
-	nand->bbt_td		= (struct nand_bbt_descr *) (doc + 1);
-	nand->bbt_md		= nand->bbt_td + 1;
-
-	mtd->priv		= nand;
-	mtd->owner		= THIS_MODULE;
-
-	nand->priv		= doc;
-	nand->select_chip	= doc200x_select_chip;
-	nand->hwcontrol		= 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->autooob		= &doc200x_oobinfo;
-	nand->eccmode		= NAND_ECC_HW6_512;
-	nand->options		= NAND_USE_FLASH_BBT | NAND_HWECC_SYNDROME;
-
-	doc->physadr		= physadr;
-	doc->virtadr		= virtadr;
-	doc->ChipID		= ChipID;
-	doc->curfloor		= -1;
-	doc->curchip		= -1;
-	doc->mh0_page		= -1;
-	doc->mh1_page		= -1;
-	doc->nextdoc		= doclist;
-
-	if (ChipID == DOC_ChipID_Doc2k)
-		numchips = doc2000_init(mtd);
-	else if (ChipID == DOC_ChipID_DocMilPlus16)
-		numchips = doc2001plus_init(mtd);
-	else
-		numchips = doc2001_init(mtd);
-
-	if ((ret = nand_scan(mtd, numchips))) {
-		/* DBB note: i believe nand_release is necessary here, as
-		   buffers may have been allocated in nand_base.  Check with
-		   Thomas. FIX ME! */
-		/* nand_release will call del_mtd_device, but we haven't yet
-		   added it.  This is handled without incident by
-		   del_mtd_device, as far as I can tell. */
-		nand_release(mtd);
-		kfree(mtd);
-		goto fail;
-	}
-
-	/* Success! */
-	doclist = mtd;
-	return 0;
-
-notfound:
-	/* Put back the contents of the DOCControl register, in case it's not
-	   actually a DiskOnChip.  */
-	WriteDOC(save_control, virtadr, DOCControl);
-fail:
-	iounmap(virtadr);
-	return ret;
-}
-
-static void release_nanddoc(void)
-{
- 	struct mtd_info *mtd, *nextmtd;
-	struct nand_chip *nand;
-	struct doc_priv *doc;
-
-	for (mtd = doclist; mtd; mtd = nextmtd) {
-		nand = mtd->priv;
-		doc = nand->priv;
-
-		nextmtd = doc->nextdoc;
-		nand_release(mtd);
-		iounmap(doc->virtadr);
-		kfree(mtd);
-	}
-}
-
-static int __init init_nanddoc(void)
-{
-	int i, ret = 0;
-
-	/* We could create the decoder on demand, if memory is a concern.
-	 * This way we have it handy, if an error happens
-	 *
-	 * Symbolsize is 10 (bits)
-	 * Primitve polynomial is x^10+x^3+1
-	 * first consecutive root is 510
-	 * primitve element to generate roots = 1
-	 * generator polinomial degree = 4
-	 */
-	rs_decoder = init_rs(10, 0x409, FCR, 1, NROOTS);
- 	if (!rs_decoder) {
-		printk (KERN_ERR "DiskOnChip: Could not create a RS decoder\n");
-		return -ENOMEM;
-	}
-
-	if (doc_config_location) {
-		printk(KERN_INFO "Using configured DiskOnChip probe address 0x%lx\n", doc_config_location);
-		ret = doc_probe(doc_config_location);
-		if (ret < 0)
-			goto outerr;
-	} else {
-		for (i=0; (doc_locations[i] != 0xffffffff); i++) {
-			doc_probe(doc_locations[i]);
-		}
-	}
-	/* No banner message any more. Print a message if no DiskOnChip
-	   found, so the user knows we at least tried. */
-	if (!doclist) {
-		printk(KERN_INFO "No valid DiskOnChip devices found\n");
-		ret = -ENODEV;
-		goto outerr;
-	}
-	return 0;
-outerr:
-	free_rs(rs_decoder);
-	return ret;
-}
-
-static void __exit cleanup_nanddoc(void)
-{
-	/* Cleanup the nand/DoC resources */
-	release_nanddoc();
-
-	/* Free the reed solomon resources */
-	if (rs_decoder) {
-		free_rs(rs_decoder);
-	}
-}
-
-module_init(init_nanddoc);
-module_exit(cleanup_nanddoc);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
-MODULE_DESCRIPTION("M-Systems DiskOnChip 2000, Millennium and Millennium Plus device driver\n");
-#endif
diff --git a/drivers/nand/nand.c b/drivers/nand/nand.c
deleted file mode 100644
index 27b5792..0000000
--- a/drivers/nand/nand.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * (C) Copyright 2005
- * 2N Telekomunikace, a.s. <www.2n.cz>
- * Ladislav Michl <michl@2n.cz>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-
-#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
-
-#include <nand.h>
-
-#ifndef CFG_NAND_BASE_LIST
-#define CFG_NAND_BASE_LIST { CFG_NAND_BASE }
-#endif
-
-int nand_curr_device = -1;
-nand_info_t nand_info[CFG_MAX_NAND_DEVICE];
-
-static struct nand_chip nand_chip[CFG_MAX_NAND_DEVICE];
-static ulong base_address[CFG_MAX_NAND_DEVICE] = CFG_NAND_BASE_LIST;
-
-static const char default_nand_name[] = "nand";
-
-extern int board_nand_init(struct nand_chip *nand);
-
-static void nand_init_chip(struct mtd_info *mtd, struct nand_chip *nand,
-			   ulong base_addr)
-{
-	mtd->priv = nand;
-
-	nand->IO_ADDR_R = nand->IO_ADDR_W = (void  __iomem *)base_addr;
-	if (board_nand_init(nand) == 0) {
-		if (nand_scan(mtd, 1) == 0) {
-			if (!mtd->name)
-				mtd->name = (char *)default_nand_name;
-		} else
-			mtd->name = NULL;
-	} else {
-		mtd->name = NULL;
-		mtd->size = 0;
-	}
-
-}
-
-void nand_init(void)
-{
-	int i;
-	unsigned int size = 0;
-	for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
-		nand_init_chip(&nand_info[i], &nand_chip[i], base_address[i]);
-		size += nand_info[i].size;
-		if (nand_curr_device == -1)
-			nand_curr_device = i;
-	}
-	printf("%lu MiB\n", size / (1024 * 1024));
-
-#ifdef CFG_NAND_SELECT_DEVICE
-	/*
-	 * Select the chip in the board/cpu specific driver
-	 */
-	board_nand_select_device(nand_info[nand_curr_device].priv, nand_curr_device);
-#endif
-}
-
-#endif
diff --git a/drivers/nand/nand_base.c b/drivers/nand/nand_base.c
deleted file mode 100644
index 151f535..0000000
--- a/drivers/nand/nand_base.c
+++ /dev/null
@@ -1,2668 +0,0 @@
-/*
- *  drivers/mtd/nand.c
- *
- *  Overview:
- *   This is the generic MTD driver for NAND flash devices. It should be
- *   capable of working with almost all NAND chips currently available.
- *   Basic support for AG-AND chips is provided.
- *
- *	Additional technical information is available on
- *	http://www.linux-mtd.infradead.org/tech/nand.html
- *
- *  Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
- * 		  2002 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:
- *	David Woodhouse for adding multichip support
- *
- *	Aleph One Ltd. and Toby Churchill Ltd. for supporting the
- *	rework for 2K page size chips
- *
- * 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.
- *
- */
-
-/* XXX U-BOOT XXX */
-#if 0
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#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/interrupt.h>
-#include <linux/bitops.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_MTD_PARTITIONS
-#include <linux/mtd/partitions.h>
-#endif
-
-#endif
-
-#include <common.h>
-
-#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
-
-#include <malloc.h>
-#include <watchdog.h>
-#include <linux/mtd/compat.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/nand_ecc.h>
-
-#include <asm/io.h>
-#include <asm/errno.h>
-
-#ifdef CONFIG_JFFS2_NAND
-#include <jffs2/jffs2.h>
-#endif
-
-/* Define default oob placement schemes for large and small page devices */
-static struct nand_oobinfo nand_oob_8 = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
-	.eccbytes = 3,
-	.eccpos = {0, 1, 2},
-	.oobfree = { {3, 2}, {6, 2} }
-};
-
-static struct nand_oobinfo nand_oob_16 = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
-	.eccbytes = 6,
-	.eccpos = {0, 1, 2, 3, 6, 7},
-	.oobfree = { {8, 8} }
-};
-
-static struct nand_oobinfo nand_oob_64 = {
-	.useecc = MTD_NANDECC_AUTOPLACE,
-	.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} }
-};
-
-/* This is used for padding purposes in nand_write_oob */
-static u_char ffchars[] = {
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-};
-
-/*
- * NAND low-level MTD interface functions
- */
-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)
-#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
- *
- * Deselect, release chip lock and wake up anyone waiting on the device
- */
-/* XXX U-BOOT XXX */
-#if 0
-static void nand_release_device (struct mtd_info *mtd)
-{
-	struct nand_chip *this = 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);
-}
-#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 */
-}
-#endif
-
-/**
- * nand_read_byte - [DEFAULT] read one byte from the chip
- * @mtd:	MTD device structure
- *
- * Default read function for 8bit buswith
- */
-static u_char 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);
-}
-
-/**
- * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip
- * @mtd:	MTD device structure
- *
- * Default read function for 16bit buswith with
- * endianess conversion
- */
-static u_char 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);
-}
-
-/**
- * nand_read_word - [DEFAULT] read one word from the chip
- * @mtd:	MTD device structure
- *
- * Default read function for 16bit buswith without
- * endianess conversion
- */
-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);
-}
-
-/**
- * nand_select_chip - [DEFAULT] control CE line
- * @mtd:	MTD device structure
- * @chip:	chipnumber to select, -1 for deselect
- *
- * Default select function for 1 chip devices.
- */
-static void nand_select_chip(struct mtd_info *mtd, int chip)
-{
-	struct nand_chip *this = mtd->priv;
-	switch(chip) {
-	case -1:
-		this->hwcontrol(mtd, NAND_CTL_CLRNCE);
-		break;
-	case 0:
-		this->hwcontrol(mtd, NAND_CTL_SETNCE);
-		break;
-
-	default:
-		BUG();
-	}
-}
-
-/**
- * nand_write_buf - [DEFAULT] write buffer to chip
- * @mtd:	MTD device structure
- * @buf:	data buffer
- * @len:	number of bytes to write
- *
- * Default write function for 8bit buswith
- */
-static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-
-	for (i=0; i<len; i++)
-		writeb(buf[i], this->IO_ADDR_W);
-}
-
-/**
- * nand_read_buf - [DEFAULT] read chip data into buffer
- * @mtd:	MTD device structure
- * @buf:	buffer to store date
- * @len:	number of bytes to read
- *
- * Default read function for 8bit buswith
- */
-static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-
-	for (i=0; i<len; i++)
-		buf[i] = readb(this->IO_ADDR_R);
-}
-
-/**
- * nand_verify_buf - [DEFAULT] Verify chip data against buffer
- * @mtd:	MTD device structure
- * @buf:	buffer containing the data to compare
- * @len:	number of bytes to compare
- *
- * Default verify function for 8bit buswith
- */
-static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-
-	for (i=0; i<len; i++)
-		if (buf[i] != readb(this->IO_ADDR_R))
-			return -EFAULT;
-
-	return 0;
-}
-
-/**
- * nand_write_buf16 - [DEFAULT] write buffer to chip
- * @mtd:	MTD device structure
- * @buf:	data buffer
- * @len:	number of bytes to write
- *
- * Default write function for 16bit buswith
- */
-static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-	u16 *p = (u16 *) buf;
-	len >>= 1;
-
-	for (i=0; i<len; i++)
-		writew(p[i], this->IO_ADDR_W);
-
-}
-
-/**
- * nand_read_buf16 - [DEFAULT] read chip data into buffer
- * @mtd:	MTD device structure
- * @buf:	buffer to store date
- * @len:	number of bytes to read
- *
- * Default read function for 16bit buswith
- */
-static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-	u16 *p = (u16 *) buf;
-	len >>= 1;
-
-	for (i=0; i<len; i++)
-		p[i] = readw(this->IO_ADDR_R);
-}
-
-/**
- * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer
- * @mtd:	MTD device structure
- * @buf:	buffer containing the data to compare
- * @len:	number of bytes to compare
- *
- * Default verify function for 16bit buswith
- */
-static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-	u16 *p = (u16 *) buf;
-	len >>= 1;
-
-	for (i=0; i<len; i++)
-		if (p[i] != readw(this->IO_ADDR_R))
-			return -EFAULT;
-
-	return 0;
-}
-
-/**
- * nand_block_bad - [DEFAULT] Read bad block marker from the chip
- * @mtd:	MTD device structure
- * @ofs:	offset from device start
- * @getchip:	0, if the chip is already selected
- *
- * Check, if the block is bad.
- */
-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;
-	u16 bad;
-
-	page = (int)(ofs >> this->page_shift) & this->pagemask;
-
-	if (getchip) {
-		chipnr = (int)(ofs >> this->chip_shift);
-
-		/* Grab the lock and see if the device is available */
-		nand_get_device (this, mtd, FL_READING);
-
-		/* Select the NAND device */
-		this->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 ((bad & 0xFF) != 0xff)
-			res = 1;
-	} else {
-		this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos, page);
-		if (this->read_byte(mtd) != 0xff)
-			res = 1;
-	}
-
-	if (getchip) {
-		/* Deselect and wake up anyone waiting on the device */
-		nand_release_device(mtd);
-	}
-
-	return res;
-}
-
-/**
- * nand_default_block_markbad - [DEFAULT] mark a block bad
- * @mtd:	MTD device structure
- * @ofs:	offset from device start
- *
- * This is the default implementation, which can be overridden by
- * a hardware specific driver.
-*/
-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;
-
-	/* Get block number */
-	block = ((int) ofs) >> this->bbt_erase_shift;
-	this->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);
-
-	/* 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);
-}
-
-/**
- * nand_check_wp - [GENERIC] check if the chip is write protected
- * @mtd:	MTD device structure
- * Check, if the device is write protected
- *
- * The function expects, that the device is already selected
- */
-static int nand_check_wp (struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-	/* Check the WP bit */
-	this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
-	return (this->read_byte(mtd) & 0x80) ? 0 : 1;
-}
-
-/**
- * nand_block_checkbad - [GENERIC] Check if a block is marked bad
- * @mtd:	MTD device structure
- * @ofs:	offset from device start
- * @getchip:	0, if the chip is already selected
- * @allowbbt:	1, if its allowed to access the bbt area
- *
- * 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)
-{
-	struct nand_chip *this = mtd->priv;
-
-	if (!this->bbt)
-		return this->block_bad(mtd, ofs, getchip);
-
-	/* Return info from the table */
-	return nand_isbad_bbt (mtd, ofs, allowbbt);
-}
-
-/**
- * nand_command - [DEFAULT] Send command to NAND device
- * @mtd:	MTD device structure
- * @command:	the command to be sent
- * @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 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)
-{
-	register struct nand_chip *this = mtd->priv;
-
-	/* 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) {
-			/* OOB area */
-			column -= mtd->oobblock;
-			readcmd = NAND_CMD_READOOB;
-		} else if (column < 256) {
-			/* First 256 bytes --> READ0 */
-			readcmd = NAND_CMD_READ0;
-		} else {
-			column -= 256;
-			readcmd = NAND_CMD_READ1;
-		}
-		this->write_byte(mtd, readcmd);
-	}
-	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);
-
-		/* 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);
-	}
-
-	/*
-	 * program and erase have their own busy handlers
-	 * status and sequential in needs no delay
-	*/
-	switch (command) {
-
-	case NAND_CMD_PAGEPROG:
-	case NAND_CMD_ERASE1:
-	case NAND_CMD_ERASE2:
-	case NAND_CMD_SEQIN:
-	case NAND_CMD_STATUS:
-		return;
-
-	case NAND_CMD_RESET:
-		if (this->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));
-		return;
-
-	/* 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);
-			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));
-}
-
-/**
- * nand_command_lp - [DEFAULT] Send command to NAND large page device
- * @mtd:	MTD device structure
- * @command:	the command to be sent
- * @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.
- *
- */
-static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, int page_addr)
-{
-	register struct nand_chip *this = mtd->priv;
-
-	/* Emulate NAND_CMD_READOOB */
-	if (command == NAND_CMD_READOOB) {
-		column += mtd->oobblock;
-		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);
-
-	if (column != -1 || page_addr != -1) {
-		this->hwcontrol(mtd, NAND_CTL_SETALE);
-
-		/* 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 & 0xff);
-			this->write_byte(mtd, column >> 8);
-		}
-		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 > 128MiB */
-			if (this->chipsize > (128 << 20))
-				this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0xff));
-		}
-		/* Latch in address */
-		this->hwcontrol(mtd, NAND_CTL_CLRALE);
-	}
-
-	/*
-	 * program and erase have their own busy handlers
-	 * status and sequential in needs no delay
-	*/
-	switch (command) {
-
-	case NAND_CMD_CACHEDPROG:
-	case NAND_CMD_PAGEPROG:
-	case NAND_CMD_ERASE1:
-	case NAND_CMD_ERASE2:
-	case NAND_CMD_SEQIN:
-	case NAND_CMD_STATUS:
-		return;
-
-
-	case NAND_CMD_RESET:
-		if (this->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));
-		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 */
-	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);
-			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));
-}
-
-/**
- * nand_get_device - [GENERIC] Get chip for selected access
- * @this:	the nand chip descriptor
- * @mtd:	MTD device structure
- * @new_state:	the state which is requested
- *
- * Get the device and lock it for exclusive access
- */
-/* XXX U-BOOT XXX */
-#if 0
-static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state)
-{
-	struct nand_chip *active = this;
-
-	DECLARE_WAITQUEUE (wait, current);
-
-	/*
-	 * 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);
-	}
-
-	if (active == this) {
-		spin_lock (&this->chip_lock);
-		if (this->state == FL_READY) {
-			this->state = new_state;
-			spin_unlock (&this->chip_lock);
-			return;
-		}
-	}
-	set_current_state (TASK_UNINTERRUPTIBLE);
-	add_wait_queue (&active->wq, &wait);
-	spin_unlock (&active->chip_lock);
-	schedule ();
-	remove_wait_queue (&active->wq, &wait);
-	goto retry;
-}
-#else
-static void nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state) {}
-#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
- *
- * 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)
-{
-	unsigned long	timeo = jiffies;
-	int	status;
-
-	if (state == FL_ERASING)
-		 timeo += (HZ * 400) / 1000;
-	else
-		 timeo += (HZ * 20) / 1000;
-
-	/* Apply this short delay always to ensure that we do wait tWB in
-	 * any case on any machine. */
-	ndelay (100);
-
-	if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
-		this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1);
-	else
-		this->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))
-				break;
-		} else {
-			if (this->read_byte(mtd) & NAND_STATUS_READY)
-				break;
-		}
-		yield ();
-	}
-	status = (int) this->read_byte(mtd);
-	return status;
-
-	return 0;
-}
-#else
-static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
-{
-	unsigned long	timeo;
-
-	if (state == FL_ERASING)
- 		timeo = (CFG_HZ * 400) / 1000;
-	else
-		timeo = (CFG_HZ * 20) / 1000;
-
-	if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
-		this->cmdfunc(mtd, NAND_CMD_STATUS_MULTI, -1, -1);
-	else
-		this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
-
-	reset_timer();
-
-	while (1) {
-		if (get_timer(0) > timeo) {
-			printf("Timeout!");
-			return 0x01;
-		}
-
-		if (this->dev_ready) {
-			if (this->dev_ready(mtd))
-				break;
-		} else {
-			if (this->read_byte(mtd) & NAND_STATUS_READY)
-				break;
-		}
-	}
-#ifdef PPCHAMELON_NAND_TIMER_HACK
-	reset_timer();
-	while (get_timer(0) < 10);
-#endif /*  PPCHAMELON_NAND_TIMER_HACK */
-
-	return this->read_byte(mtd);
-}
-#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.
- */
-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)
-{
-	int 	i, status;
-	u_char	ecc_code[32];
-	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;
-
-	/* FIXME: Enable cached programming */
-	cached = 0;
-
-	/* Send command to begin auto page programming */
-	this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page);
-
-	/* 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;
-
-	/* 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 immidiately after
-			 * the data bytes (words) */
-			if (this->options & NAND_HWECC_SYNDROME)
-				this->write_buf(mtd, ecc_code, eccbytes);
-			datidx += this->eccsize;
-		}
-		break;
-	}
-
-	/* 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) {
-			DEBUG (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); */
-	}
-	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
- *
- * 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.
- */
-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)) {
-				DEBUG (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)) {
-				DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
-				goto out;
-			}
-			oobofs += hweccbytes;
-		}
-
-		/* 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)) {
-				DEBUG (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] ) {
-						DEBUG (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));
-
-		/* All done, return happy */
-		if (!numpages)
-			return 0;
-
-
-		/* Check, if the chip supports auto page increment */
-		if (!NAND_CANAUTOINCR(this))
-			this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
-	}
-	/*
-	 * 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);
-}
-
-
-/**
- * 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 with ECC
- */
-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)
-{
-	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[32];
-	u_char ecc_code[32];
-	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;
-
-
-	DEBUG (MTD_DEBUG_LEVEL3, "nand_read_ecc: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
-
-	/* Do not allow reads past end of device */
-	if ((from + len) > mtd->size) {
-		DEBUG (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);
-
-	/* use userspace supplied oobinfo, if zero */
-	if (oobsel == NULL)
-		oobsel = &mtd->oobinfo;
-
-	/* Autoplace of oob data ? Use the default placement scheme */
-	if (oobsel->useecc == MTD_NANDECC_AUTOPLACE)
-		oobsel = this->autooob;
-
-	eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
-	oob_config = oobsel->eccpos;
-
-	/* Select the NAND device */
-	chipnr = (int)(from >> this->chip_shift);
-	this->select_chip(mtd, chipnr);
-
-	/* First we calculate the starting page */
-	realpage = (int) (from >> this->page_shift);
-	page = realpage & this->pagemask;
-
-	/* Get raw starting column */
-	col = from & (mtd->oobblock - 1);
-
-	end = mtd->oobblock;
-	ecc = this->eccsize;
-	eccbytes = this->eccbytes;
-
-	if ((eccmode == NAND_ECC_NONE) || (this->options & NAND_HWECC_SYNDROME))
-		compareecc = 0;
-
-	oobreadlen = mtd->oobsize;
-	if (this->options & NAND_HWECC_SYNDROME)
-		oobreadlen -= oobsel->eccbytes;
-
-	/* Loop until all data read */
-	while (read < len) {
-
-		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;
-
-		/* 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;
-		}
-
-		/* Check, if we must send the read command */
-		if (sndcmd) {
-			this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
-			sndcmd = 0;
-		}
-
-		/* 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];
-
-		eccsteps = this->eccsteps;
-
-		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;
-			}
-#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;
-
-		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) {
-						DEBUG (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]);
-				}
-			}
-			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;
-			}
-
-			if (ecc_status == -1) {
-				DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page);
-				ecc_failed++;
-			}
-		}
-
-	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], &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));
-
-		if (read == len)
-			break;
-
-		/* For subsequent reads align to page boundary. */
-		col = 0;
-		/* Increment page address */
-		realpage++;
-
-		page = realpage & this->pagemask;
-		/* Check, if we cross a chip boundary */
-		if (!page) {
-			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))
-			sndcmd = 1;
-	}
-
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
-
-	/*
-	 * 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;
-}
-
-/**
- * nand_read_oob - [MTD Interface] NAND read out-of-band
- * @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
- */
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
-{
-	int i, col, page, chipnr;
-	struct nand_chip *this = mtd->priv;
-	int	blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
-
-	DEBUG (MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
-
-	/* Shift to get page */
-	page = (int)(from >> this->page_shift);
-	chipnr = (int)(from >> this->chip_shift);
-
-	/* Mask to get column */
-	col = from & (mtd->oobsize - 1);
-
-	/* Initialize return length value */
-	*retlen = 0;
-
-	/* Do not allow reads past end of device */
-	if ((from + len) > mtd->size) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: 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);
-
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
-
-	/* 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 !
-	 */
-	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);
-			}
-		}
-	}
-
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
-
-	/* Return happy */
-	*retlen = len;
-	return 0;
-}
-
-/**
- * nand_read_raw - [GENERIC] Read raw data including oob into buffer
- * @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
- *
- * Read raw data including oob into buffer
- */
-int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen)
-{
-	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;
-
-	/* Do not allow reads past end of device */
-	if ((from + len) > mtd->size) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_read_raw: 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);
-
-	this->select_chip (mtd, chip);
-
-	/* Add requested oob length */
-	len += ooblen;
-
-	while (len) {
-		if (sndcmd)
-			this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask);
-		sndcmd = 0;
-
-		this->read_buf (mtd, &buf[cnt], pagesize);
-
-		len -= pagesize;
-		cnt += pagesize;
-		page++;
-
-		if (!this->dev_ready)
-			udelay (this->chip_delay);
-		else
-			while (!this->dev_ready(mtd));
-
-		/* Check, if the chip supports auto page increment */
-		if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
-			sndcmd = 1;
-	}
-
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
-	return 0;
-}
-
-
-/**
- * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer
- * @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.
- *
-*/
-static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct nand_oobinfo *oobsel,
-		int autoplace, int numpages)
-{
-	struct nand_chip *this = mtd->priv;
-	int i, len, ofs;
-
-	/* Zero copy fs supplied buffer */
-	if (fsbuf && !autoplace)
-		return fsbuf;
-
-	/* 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;
-	}
-
-	/* 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;
-	}
-	return this->oob_buf;
-}
-
-#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)
-{
-	return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL));
-}
-
-/**
- * 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
- */
-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)
-{
-	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));
-
-	DEBUG (MTD_DEBUG_LEVEL3, "nand_write_ecc: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
-
-	/* Initialize retlen, in case of early exit */
-	*retlen = 0;
-
-	/* Do not allow write past end of device */
-	if ((to + len) > mtd->size) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: Attempt to write past end of page\n");
-		return -EINVAL;
-	}
-
-	/* 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;
-	}
-
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_WRITING);
-
-	/* Calculate chipnr */
-	chipnr = (int)(to >> this->chip_shift);
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
-
-	/* Check, if it is write protected */
-	if (nand_check_wp(mtd))
-		goto out;
-
-	/* if oobsel is NULL, use chip defaults */
-	if (oobsel == NULL)
-		oobsel = &mtd->oobinfo;
-
-	/* 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;
-
-	/* 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) {
-			DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: write_page failed %d\n", ret);
-			goto out;
-		}
-		/* 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) {
-				DEBUG (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);
-			}
-		}
-	}
-	/* 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;
-	else
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
-
-out:
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
-
-	return ret;
-}
-
-
-/**
- * nand_write_oob - [MTD Interface] NAND write out-of-band
- * @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
- *
- * NAND write out-of-band
- */
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
-{
-	int column, page, status, ret = -EIO, chipnr;
-	struct nand_chip *this = mtd->priv;
-
-	DEBUG (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);
-
-	/* Mask to get column */
-	column = to & (mtd->oobsize - 1);
-
-	/* Initialize return length value */
-	*retlen = 0;
-
-	/* Do not allow write past end of page */
-	if ((column + len) > mtd->oobsize) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: Attempt to write past end of page\n");
-		return -EINVAL;
-	}
-
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_WRITING);
-
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
-
-	/* 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);
-
-	/* Check, if it is write protected */
-	if (nand_check_wp(mtd))
-		goto out;
-
-	/* 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);
-		/* 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);
-
-	/* See if device thinks it succeeded */
-	if (status & 0x01) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write, page 0x%08x\n", page);
-		ret = -EIO;
-		goto out;
-	}
-	/* Return happy */
-	*retlen = len;
-
-#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
-	/* Send command to read back the data */
-	this->cmdfunc (mtd, NAND_CMD_READOOB, column, page & this->pagemask);
-
-	if (this->verify_buf(mtd, buf, len)) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write verify, page 0x%08x\n", page);
-		ret = -EIO;
-		goto out;
-	}
-#endif
-	ret = 0;
-out:
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
-
-	return ret;
-}
-
-/* XXX U-BOOT XXX */
-#if 0
-/**
- * nand_writev - [MTD Interface] compabilty function for nand_writev_ecc
- * @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
- *
- * NAND write with kvec. This just calls the ecc function
- */
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
-		loff_t to, size_t * retlen)
-{
-	return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL));
-}
-
-/**
- * nand_writev_ecc - [MTD Interface] write with iovec with ecc
- * @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
- *
- * NAND write with iovec with ecc
- */
-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)
-{
-	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;
-
-	/* Calculate total length of data */
-	total_len = 0;
-	for (i = 0; i < count; i++)
-		total_len += (int) vecs[i].iov_len;
-
-	DEBUG (MTD_DEBUG_LEVEL3,
-	       "nand_writev: to = 0x%08x, len = %i, count = %ld\n", (unsigned int) to, (unsigned int) total_len, count);
-
-	/* Do not allow write past end of page */
-	if ((to + total_len) > mtd->size) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_writev: Attempted write past end of device\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");
-		return -EINVAL;
-	}
-
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_WRITING);
-
-	/* Get the current chip-nr */
-	chipnr = (int) (to >> this->chip_shift);
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
-
-	/* Check, if it is write protected */
-	if (nand_check_wp(mtd))
-		goto out;
-
-	/* if oobsel is NULL, use chip defaults */
-	if (oobsel == NULL)
-		oobsel = &mtd->oobinfo;
-
-	/* 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;
-
-	/* 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;
-
-	startpage = page & this->pagemask;
-
-	/* 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++;
-		}
-
-		this->data_poi = bufstart;
-		ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0);
-		if (ret)
-			goto out;
-
-		written += mtd->oobblock * numpages;
-		/* All done ? */
-		if (!count)
-			break;
-
-		startpage = page & this->pagemask;
-		/* Check, if we cross a chip boundary */
-		if (!startpage) {
-			chipnr++;
-			this->select_chip(mtd, -1);
-			this->select_chip(mtd, chipnr);
-		}
-	}
-	ret = 0;
-out:
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
-
-	*retlen = written;
-	return ret;
-}
-#endif
-
-/**
- * single_erease_cmd - [GENERIC] NAND standard block erase command function
- * @mtd:	MTD device structure
- * @page:	the page address of the block which will be erased
- *
- * Standard erase command for NAND chips
- */
-static void single_erase_cmd (struct mtd_info *mtd, int page)
-{
-	struct nand_chip *this = mtd->priv;
-	/* Send commands to erase a block */
-	this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
-	this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
-}
-
-/**
- * multi_erease_cmd - [GENERIC] AND specific block erase command function
- * @mtd:	MTD device structure
- * @page:	the page address of the block which will be erased
- *
- * AND multi block erase command function
- * Erase 4 consecutive blocks
- */
-static void multi_erase_cmd (struct mtd_info *mtd, int page)
-{
-	struct nand_chip *this = 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);
-}
-
-/**
- * nand_erase - [MTD Interface] erase block(s)
- * @mtd:	MTD device structure
- * @instr:	erase instruction
- *
- * Erase one ore more blocks
- */
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
-{
-	return nand_erase_nand (mtd, instr, 0);
-}
-
-/**
- * nand_erase_intern - [NAND Interface] 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 page, len, status, pages_per_block, ret, chipnr;
-	struct nand_chip *this = mtd->priv;
-
-	DEBUG (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)) {
-		DEBUG (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)) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Length not block aligned\n");
-		return -EINVAL;
-	}
-
-	/* Do not allow erase past end of device */
-	if ((instr->len + instr->addr) > mtd->size) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Erase past end of device\n");
-		return -EINVAL;
-	}
-
-	instr->fail_addr = 0xffffffff;
-
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_ERASING);
-
-	/* Shift to get first page */
-	page = (int) (instr->addr >> this->page_shift);
-	chipnr = (int) (instr->addr >> this->chip_shift);
-
-	/* Calculate pages in each block */
-	pages_per_block = 1 << (this->phys_erase_shift - this->page_shift);
-
-	/* Select the NAND device */
-	this->select_chip(mtd, chipnr);
-
-	/* Check the WP bit */
-	/* Check, if it is write protected */
-	if (nand_check_wp(mtd)) {
-		DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Device is write protected!!!\n");
-		instr->state = MTD_ERASE_FAILED;
-		goto erase_exit;
-	}
-
-	/* 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);
-			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);
-
-		status = this->waitfunc (mtd, this, FL_ERASING);
-
-		/* See if block erase succeeded */
-		if (status & 0x01) {
-			DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: " "Failed erase, page 0x%08x\n", page);
-			instr->state = MTD_ERASE_FAILED;
-			instr->fail_addr = (page << this->page_shift);
-			goto erase_exit;
-		}
-
-		/* Increment page address and decrement length */
-		len -= (1 << this->phys_erase_shift);
-		page += pages_per_block;
-
-		/* Check, if we cross a chip boundary */
-		if (len && !(page & this->pagemask)) {
-			chipnr++;
-			this->select_chip(mtd, -1);
-			this->select_chip(mtd, chipnr);
-		}
-	}
-	instr->state = MTD_ERASE_DONE;
-
-erase_exit:
-
-	ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
-	/* Do call back function */
-	if (!ret)
-		mtd_erase_callback(instr);
-
-	/* Deselect and wake up anyone waiting on the device */
-	nand_release_device(mtd);
-
-	/* Return more or less happy */
-	return ret;
-}
-
-/**
- * nand_sync - [MTD Interface] sync
- * @mtd:	MTD device structure
- *
- * Sync is actually a wait for chip ready function
- */
-static void nand_sync (struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-
-	DEBUG (MTD_DEBUG_LEVEL3, "nand_sync: called\n");
-
-	/* Grab the lock and see if the device is available */
-	nand_get_device (this, mtd, FL_SYNCING);
-	/* Release it and go back */
-	nand_release_device (mtd);
-}
-
-
-/**
- * nand_block_isbad - [MTD Interface] Check whether the block at the given offset is bad
- * @mtd:	MTD device structure
- * @ofs:	offset relative to mtd start
- */
-static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs)
-{
-	/* Check for invalid offset */
-	if (ofs > mtd->size)
-		return -EINVAL;
-
-	return nand_block_checkbad (mtd, ofs, 1, 0);
-}
-
-/**
- * nand_block_markbad - [MTD Interface] Mark the 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)
-{
-	struct nand_chip *this = mtd->priv;
-	int ret;
-
-	if ((ret = nand_block_isbad(mtd, ofs))) {
-		/* If it was bad already, return success and do nothing. */
-		if (ret > 0)
-			return 0;
-		return ret;
-	}
-
-	return this->block_markbad(mtd, ofs);
-}
-
-/**
- * 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 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)
-{
-	int i, j, nand_maf_id, nand_dev_id, busw;
-	struct nand_chip *this = mtd->priv;
-
-	/* Get buswidth to select the correct functions*/
-	busw = this->options & NAND_BUSWIDTH_16;
-
-	/* check for proper chip_delay setup, set 20us if not */
-	if (!this->chip_delay)
-		this->chip_delay = 20;
-
-	/* check, if a user supplied command function given */
-	if (this->cmdfunc == NULL)
-		this->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;
-
-	/* Select the device */
-	this->select_chip(mtd, 0);
-
-	/* Send the command for reading device ID */
-	this->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);
-
-	/* Print and store flash device information */
-	for (i = 0; nand_flash_ids[i].name != NULL; i++) {
-
-		if (nand_dev_id != nand_flash_ids[i].id)
-			continue;
-
-		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 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;
-		}
-
-		/* 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;
-		}
-
-		/* 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;
-
-		/* 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;
-
-		/* Do not replace user supplied command function ! */
-		if (mtd->oobblock > 512 && this->cmdfunc == nand_command)
-			this->cmdfunc = nand_command_lp;
-
-		/* 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;
-	}
-
-	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;
-	}
-
-	for (i=1; i < maxchips; i++) {
-		this->select_chip(mtd, i);
-
-		/* Send the command for reading device ID */
-		this->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))
-			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;
-	}
-
-	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;
-	}
-
-	/* 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 */
-		switch (mtd->oobsize) {
-		case 8:
-			this->autooob = &nand_oob_8;
-			break;
-		case 16:
-			this->autooob = &nand_oob_16;
-			break;
-		case 64:
-			this->autooob = &nand_oob_64;
-			break;
-		default:
-			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 */
-	if (this->options & NAND_BUSWIDTH_16) {
-		mtd->oobavail = mtd->oobsize - (this->autooob->eccbytes + 2);
-		if (this->autooob->eccbytes & 0x01)
-			mtd->oobavail--;
-	} else
-		mtd->oobavail = mtd->oobsize - (this->autooob->eccbytes + 1);
-
-	/*
-	 * 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;
-
-	case NAND_ECC_HW3_256:
-		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;
-		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();	*/
-	}
-
-	mtd->eccsize = this->eccsize;
-
-	/* 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;
-
-	case NAND_ECC_NONE:
-		this->eccsteps = 1;
-		break;
-	}
-
-/* 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
-
-	/* De-select the device */
-	this->select_chip(mtd, -1);
-
-	/* Invalidate the pagebuffer reference */
-	this->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->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->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 */
-#if 0
-	mtd->owner = THIS_MODULE;
-#endif
-	/* Build bad block table */
-	return this->scan_bbt (mtd);
-}
-
-/**
- * nand_release - [NAND Interface] Free resources held by the NAND device
- * @mtd:	MTD device structure
- */
-void nand_release (struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-
-#ifdef CONFIG_MTD_PARTITIONS
-	/* Deregister partitions */
-	del_mtd_partitions (mtd);
-#endif
-	/* Deregister the device */
-/* XXX U-BOOT XXX */
-#if 0
-	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);
-}
-
-#endif
diff --git a/drivers/nand/nand_bbt.c b/drivers/nand/nand_bbt.c
deleted file mode 100644
index 19a9bc2..0000000
--- a/drivers/nand/nand_bbt.c
+++ /dev/null
@@ -1,1052 +0,0 @@
-/*
- *  drivers/mtd/nand_bbt.c
- *
- *  Overview:
- *   Bad block table support for the NAND driver
- *
- *  Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de)
- *
- * $Id: nand_bbt.c,v 1.28 2004/11/13 10:19:09 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
- * published by the Free Software Foundation.
- *
- * Description:
- *
- * When nand_scan_bbt is called, then it tries to find the bad block table
- * depending on the options in the bbt descriptor(s). If a bbt is found
- * then the contents are read and the memory based bbt is created. If a
- * mirrored bbt is selected then the mirror is searched too and the
- * versions are compared. If the mirror has a greater version number
- * than the mirror bbt is used to build the memory based bbt.
- * If the tables are not versioned, then we "or" the bad block information.
- * If one of the bbt's is out of date or does not exist it is (re)created.
- * If no bbt exists at all then the device is scanned for factory marked
- * good / bad blocks and the bad block tables are created.
- *
- * For manufacturer created bbts like the one found on M-SYS DOC devices
- * the bbt is searched and read but never created
- *
- * The autogenerated bad block table is located in the last good blocks
- * of the device. The table is mirrored, so it can be updated eventually.
- * The table is marked in the oob area with an ident pattern and a version
- * number which indicates which of both tables is more up to date.
- *
- * The table uses 2 bits per block
- * 11b: 	block is good
- * 00b: 	block is factory marked bad
- * 01b, 10b: 	block is marked bad due to wear
- *
- * The memory bad block table uses the following scheme:
- * 00b:		block is good
- * 01b:		block is marked bad due to wear
- * 10b:		block is reserved (to protect the bbt area)
- * 11b:		block is factory marked bad
- *
- * Multichip devices like DOC store the bad block info per floor.
- *
- * 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
- *
- */
-
-#include <common.h>
-
-#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
-
-#include <malloc.h>
-#include <linux/mtd/compat.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-
-#include <asm/errno.h>
-
-/**
- * check_pattern - [GENERIC] check if a pattern is in the buffer
- * @buf:	the buffer to search
- * @len:	the length of buffer to search
- * @paglen:	the pagelength
- * @td:		search pattern descriptor
- *
- * Check for a pattern at the given place. Used to search bad block
- * tables and good / bad block identifiers.
- * If the SCAN_EMPTY option is set then check, if all bytes except the
- * pattern area contain 0xff
- *
-*/
-static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td)
-{
-	int i, end;
-	uint8_t *p = buf;
-
-	end = paglen + td->offs;
-	if (td->options & NAND_BBT_SCANEMPTY) {
-		for (i = 0; i < end; i++) {
-			if (p[i] != 0xff)
-				return -1;
-		}
-	}
-	p += end;
-
-	/* Compare the pattern */
-	for (i = 0; i < td->len; i++) {
-		if (p[i] != td->pattern[i])
-			return -1;
-	}
-
-	p += td->len;
-	end += td->len;
-	if (td->options & NAND_BBT_SCANEMPTY) {
-		for (i = end; i < len; i++) {
-			if (*p++ != 0xff)
-				return -1;
-		}
-	}
-	return 0;
-}
-
-/**
- * read_bbt - [GENERIC] Read the bad block table starting from page
- * @mtd:	MTD device structure
- * @buf:	temporary buffer
- * @page:	the starting page
- * @num:	the number of bbt descriptors to read
- * @bits:	number of bits per block
- * @offs:	offset in the memory table
- * @reserved_block_code:	Pattern to identify reserved blocks
- *
- * 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)
-{
-	int res, i, j, act = 0;
-	struct nand_chip *this = mtd->priv;
-	size_t retlen, len, totlen;
-	loff_t from;
-	uint8_t msk = (uint8_t) ((1 << bits) - 1);
-
-	totlen = (num * bits) >> 3;
-	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);
-		if (res < 0) {
-			if (retlen != len) {
-				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");
-		}
-
-		/* Analyse data */
-		for (i = 0; i < len; i++) {
-			uint8_t dat = buf[i];
-			for (j = 0; j < 8; j += bits, act += 2) {
-				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);
-					this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
-					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);
-				/* 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);
-			}
-		}
-		totlen -= len;
-		from += len;
-	}
-	return 0;
-}
-
-/**
- * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page
- * @mtd:	MTD device structure
- * @buf:	temporary buffer
- * @td:		descriptor for the bad block table
- * @chip:	read the table for a specific chip, -1 read all chips.
- *		Applies only if NAND_BBT_PERCHIP option is set
- *
- * 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)
-{
-	struct nand_chip *this = mtd->priv;
-	int res = 0, i;
-	int bits;
-
-	bits = td->options & NAND_BBT_NRBITS_MSK;
-	if (td->options & NAND_BBT_PERCHIP) {
-		int offs = 0;
-		for (i = 0; i < this->numchips; i++) {
-			if (chip == -1 || chip == i)
-				res = read_bbt (mtd, buf, td->pages[i], this->chipsize >> this->bbt_erase_shift, bits, offs, td->reserved_block_code);
-			if (res)
-				return res;
-			offs += this->chipsize >> (this->bbt_erase_shift + 2);
-		}
-	} else {
-		res = read_bbt (mtd, buf, td->pages[0], mtd->size >> this->bbt_erase_shift, bits, 0, td->reserved_block_code);
-		if (res)
-			return res;
-	}
-	return 0;
-}
-
-/**
- * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page
- * @mtd:	MTD device structure
- * @buf:	temporary buffer
- * @td:		descriptor for the bad block table
- * @md:		descriptor for the bad block table mirror
- *
- * Read the bad block table(s) for all chips starting at a given page
- * 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)
-{
-	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]);
-	}
-
-	/* 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]);
-	}
-
-	return 1;
-}
-
-/**
- * create_bbt - [GENERIC] Create a bad block table by scanning the device
- * @mtd:	MTD device structure
- * @buf:	temporary buffer
- * @bd:		descriptor for the good/bad block search pattern
- * @chip:	create the table for a specific chip, -1 read all chips.
- *		Applies only if NAND_BBT_PERCHIP option is set
- *
- * 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)
-{
-	struct nand_chip *this = mtd->priv;
-	int i, j, numblocks, len, scanlen;
-	int startblock;
-	loff_t from;
-	size_t readlen, ooblen;
-
-	if (bd->options & NAND_BBT_SCANALLPAGES)
-		len = 1 << (this->bbt_erase_shift - this->page_shift);
-	else {
-		if (bd->options & NAND_BBT_SCAN2NDPAGE)
-			len = 2;
-		else
-			len = 1;
-	}
-	scanlen	= mtd->oobblock + mtd->oobsize;
-	readlen = len * mtd->oobblock;
-	ooblen = len * mtd->oobsize;
-
-	if (chip == -1) {
-		/* 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;
-		}
-		numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
-		startblock = chip * numblocks;
-		numblocks += startblock;
-		from = startblock << (this->bbt_erase_shift - 1);
-	}
-
-	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;
-			}
-		}
-		i += 2;
-		from += (1 << this->bbt_erase_shift);
-	}
-}
-
-/**
- * search_bbt - [GENERIC] scan the device for a specific bad block table
- * @mtd:	MTD device structure
- * @buf:	temporary buffer
- * @td:		descriptor for the bad block table
- *
- * Read the bad block table by searching for a given ident pattern.
- * Search is preformed either from the beginning up or from the end of
- * the device downwards. The search starts always at the start of a
- * 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.
- *
- * 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)
-{
-	struct nand_chip *this = mtd->priv;
-	int i, chips;
-	int bits, startblock, block, dir;
-	int scanlen = mtd->oobblock + mtd->oobsize;
-	int bbtblocks;
-
-	/* Search direction top -> down ? */
-	if (td->options & NAND_BBT_LASTBLOCK) {
-		startblock = (mtd->size >> this->bbt_erase_shift) -1;
-		dir = -1;
-	} else {
-		startblock = 0;
-		dir = 1;
-	}
-
-	/* Do we have a bbt per chip ? */
-	if (td->options & NAND_BBT_PERCHIP) {
-		chips = this->numchips;
-		bbtblocks = this->chipsize >> this->bbt_erase_shift;
-		startblock &= bbtblocks - 1;
-	} else {
-		chips = 1;
-		bbtblocks = mtd->size >> this->bbt_erase_shift;
-	}
-
-	/* Number of bits for each erase block in the bbt */
-	bits = td->options & NAND_BBT_NRBITS_MSK;
-
-	for (i = 0; i < chips; i++) {
-		/* Reset version information */
-		td->version[i] = 0;
-		td->pages[i] = -1;
-		/* Scan the maximum number of blocks */
-		for (block = 0; block < td->maxblocks; block++) {
-			int actblock = startblock + dir * block;
-			/* 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);
-				if (td->options & NAND_BBT_VERSION) {
-					td->version[i] = buf[mtd->oobblock + td->veroffs];
-				}
-				break;
-			}
-		}
-		startblock += this->chipsize >> this->bbt_erase_shift;
-	}
-	/* 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);
-		else
-			printk (KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]);
-	}
-	return 0;
-}
-
-/**
- * search_read_bbts - [GENERIC] scan the device for bad block table(s)
- * @mtd:	MTD device structure
- * @buf:	temporary buffer
- * @td:		descriptor for the bad block table
- * @md:		descriptor for the bad block table mirror
- *
- * 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)
-{
-	/* Search the primary table */
-	search_bbt (mtd, buf, td);
-
-	/* Search the mirror table */
-	if (md)
-		search_bbt (mtd, buf, md);
-
-	/* Force result check */
-	return 1;
-}
-
-
-/**
- * write_bbt - [GENERIC] (Re)write the bad block table
- *
- * @mtd:	MTD device structure
- * @buf:	temporary buffer
- * @td:		descriptor for the bad block table
- * @md:		descriptor for the bad block table mirror
- * @chipsel:	selector for a specific chip, -1 for all
- *
- * (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)
-{
-	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;
-	uint8_t msk[4];
-	uint8_t rcode = td->reserved_block_code;
-	size_t retlen, len = 0;
-	loff_t to;
-
-	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);
-		/* Full device write or specific chip ? */
-		if (chipsel == -1) {
-			nrchips = this->numchips;
-		} else {
-			nrchips = chipsel + 1;
-			chip = chipsel;
-		}
-	} else {
-		numblocks = (int) (mtd->size >> this->bbt_erase_shift);
-		nrchips = 1;
-	}
-
-	/* Loop through the chips */
-	for (; chip < nrchips; chip++) {
-
-		/* There was already a version of the table, reuse the page
-		 * This applies for absolute placement too, as we have the
-		 * page nr. in td->pages.
-		 */
-		if (td->pages[chip] != -1) {
-			page = td->pages[chip];
-			goto write;
-		}
-
-		/* Automatic placement of the bad block table */
-		/* Search direction top -> down ? */
-		if (td->options & NAND_BBT_LASTBLOCK) {
-			startblock = numblocks * (chip + 1) - 1;
-			dir = -1;
-		} else {
-			startblock = chip * numblocks;
-			dir = 1;
-		}
-
-		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) {
-			case 0x01:
-			case 0x03:
-				continue;
-			}
-			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");
-		return -ENOSPC;
-write:
-
-		/* Set up shift count and masks for the flash table */
-		bits = td->options & NAND_BBT_NRBITS_MSK;
-		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;
-		default: return -EINVAL;
-		}
-
-		bbtoffs = chip * (numblocks >> 2);
-
-		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);
-			if (res < 0) {
-				if (retlen != len) {
-					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");
-			}
-			/* 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];
-			}
-		} else {
-			/* Calc length */
-			len = (size_t) (numblocks >> sft);
-			/* Make it page aligned ! */
-			len = (len + (mtd->oobblock-1)) & ~(mtd->oobblock-1);
-			/* Preset the buffer with 0xff */
-			memset (buf, 0xff, len + (len >> this->page_shift) * mtd->oobsize);
-			offs = 0;
-			/* 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];
-			}
-		}
-
-		/* walk through the memory table */
-		for (i = 0; i < numblocks; ) {
-			uint8_t dat;
-			dat = this->bbt[bbtoffs + (i >> 2)];
-			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);
-				dat >>= 2;
-			}
-		}
-
-		memset (&einfo, 0, sizeof (einfo));
-		einfo.mtd = mtd;
-		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 = 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]);
-
-		/* Mark it as used */
-		td->pages[chip] = page;
-	}
-	return 0;
-}
-
-/**
- * nand_memory_bbt - [GENERIC] create a memory based bad block table
- * @mtd:	MTD device structure
- * @bd:		descriptor for the good/bad block search pattern
- *
- * 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)
-{
-	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;
-}
-
-/**
- * check_create - [GENERIC] create and write bbt(s) if neccecary
- * @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
- * 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)
-{
-	int i, chips, writeops, chipsel, res;
-	struct nand_chip *this = mtd->priv;
-	struct nand_bbt_descr *td = this->bbt_td;
-	struct nand_bbt_descr *md = this->bbt_md;
-	struct nand_bbt_descr *rd, *rd2;
-
-	/* Do we have a bbt per chip ? */
-	if (td->options & NAND_BBT_PERCHIP)
-		chips = this->numchips;
-	else
-		chips = 1;
-
-	for (i = 0; i < chips; i++) {
-		writeops = 0;
-		rd = NULL;
-		rd2 = NULL;
-		/* Per chip or per device ? */
-		chipsel = (td->options & NAND_BBT_PERCHIP) ? i : -1;
-		/* Mirrored table avilable ? */
-		if (md) {
-			if (td->pages[i] == -1 && md->pages[i] == -1) {
-				writeops = 0x03;
-				goto create;
-			}
-
-			if (td->pages[i] == -1) {
-				rd = md;
-				td->version[i] = md->version[i];
-				writeops = 1;
-				goto writecheck;
-			}
-
-			if (md->pages[i] == -1) {
-				rd = td;
-				md->version[i] = td->version[i];
-				writeops = 2;
-				goto writecheck;
-			}
-
-			if (td->version[i] == md->version[i]) {
-				rd = td;
-				if (!(td->options & NAND_BBT_VERSION))
-					rd2 = md;
-				goto writecheck;
-			}
-
-			if (((int8_t) (td->version[i] - md->version[i])) > 0) {
-				rd = td;
-				md->version[i] = td->version[i];
-				writeops = 2;
-			} else {
-				rd = md;
-				td->version[i] = md->version[i];
-				writeops = 1;
-			}
-
-			goto writecheck;
-
-		} else {
-			if (td->pages[i] == -1) {
-				writeops = 0x01;
-				goto create;
-			}
-			rd = td;
-			goto writecheck;
-		}
-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);
-
-		td->version[i] = 1;
-		if (md)
-			md->version[i] = 1;
-writecheck:
-		/* read back first ? */
-		if (rd)
-			read_abs_bbt (mtd, buf, rd, chipsel);
-		/* If they weren't versioned, read both. */
-		if (rd2)
-			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);
-			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);
-			if (res < 0)
-				return res;
-		}
-	}
-	return 0;
-}
-
-/**
- * mark_bbt_regions - [GENERIC] mark the bad block table regions
- * @mtd:	MTD device structure
- * @td:		bad block table descriptor
- *
- * The bad block table regions are marked as "bad" to prevent
- * 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)
-{
-	struct nand_chip *this = mtd->priv;
-	int i, j, chips, block, nrblocks, update;
-	uint8_t oldval, newval;
-
-	/* Do we have a bbt per chip ? */
-	if (td->options & NAND_BBT_PERCHIP) {
-		chips = this->numchips;
-		nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);
-	} else {
-		chips = 1;
-		nrblocks = (int)(mtd->size >> this->bbt_erase_shift);
-	}
-
-	for (i = 0; i < chips; i++) {
-		if ((td->options & NAND_BBT_ABSPAGE) ||
-		    !(td->options & NAND_BBT_WRITE)) {
-		    	if (td->pages[i] == -1) continue;
-			block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
-			block <<= 1;
-			oldval = this->bbt[(block >> 3)];
-			newval = oldval | (0x2 << (block & 0x06));
-			this->bbt[(block >> 3)] = newval;
-			if ((oldval != newval) && td->reserved_block_code)
-				nand_update_bbt(mtd, block << (this->bbt_erase_shift - 1));
-			continue;
-		}
-		update = 0;
-		if (td->options & NAND_BBT_LASTBLOCK)
-			block = ((i + 1) * nrblocks) - td->maxblocks;
-		else
-			block = i * nrblocks;
-		block <<= 1;
-		for (j = 0; j < td->maxblocks; j++) {
-			oldval = this->bbt[(block >> 3)];
-			newval = oldval | (0x2 << (block & 0x06));
-			this->bbt[(block >> 3)] = newval;
-			if (oldval != newval) update = 1;
-			block += 2;
-		}
-		/* If we want reserved blocks to be recorded to flash, and some
-		   new ones have been marked, then we need to update the stored
-		   bbts.  This should only happen once. */
-		if (update && td->reserved_block_code)
-			nand_update_bbt(mtd, (block - 2) << (this->bbt_erase_shift - 1));
-	}
-}
-
-/**
- * nand_scan_bbt - [NAND Interface] scan, find, read and maybe create bad block table(s)
- * @mtd:	MTD device structure
- * @bd:		descriptor for the good/bad block search pattern
- *
- * The function checks, if a bad block table(s) is/are already
- * available. If not it scans the device for manufacturer
- * marked good / bad blocks and writes the bad block table(s) to
- * the selected place.
- *
- * The bad block table memory is allocated here. It must be freed
- * by calling the nand_free_bbt function.
- *
-*/
-int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
-{
-	struct nand_chip *this = mtd->priv;
-	int len, res = 0;
-	uint8_t *buf;
-	struct nand_bbt_descr *td = this->bbt_td;
-	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);
-	if (!this->bbt) {
-		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);
-
-	/* 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);
-	if (!buf) {
-		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);
-	} else {
-		/* Search the bad block table using a pattern in oob */
-		res = search_read_bbts (mtd, buf, td, md);
-	}
-
-	if (res)
-		res = check_create (mtd, buf, bd);
-
-	/* Prevent the bbt regions from erasing / writing */
-	mark_bbt_region (mtd, td);
-	if (md)
-		mark_bbt_region (mtd, md);
-
-	kfree (buf);
-	return res;
-}
-
-
-/**
- * nand_update_bbt - [NAND Interface] update bad block table(s)
- * @mtd:	MTD device structure
- * @offs:	the offset of the newly marked block
- *
- * The function updates the bad block table(s)
-*/
-int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
-{
-	struct nand_chip *this = mtd->priv;
-	int len, res = 0, writeops = 0;
-	int chip, chipsel;
-	uint8_t *buf;
-	struct nand_bbt_descr *td = this->bbt_td;
-	struct nand_bbt_descr *md = this->bbt_md;
-
-	if (!this->bbt || !td)
-		return -EINVAL;
-
-	len = mtd->size >> (this->bbt_erase_shift + 2);
-	/* 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);
-	if (!buf) {
-		printk (KERN_ERR "nand_update_bbt: Out of memory\n");
-		return -ENOMEM;
-	}
-
-	writeops = md != NULL ? 0x03 : 0x01;
-
-	/* Do we have a bbt per chip ? */
-	if (td->options & NAND_BBT_PERCHIP) {
-		chip = (int) (offs >> this->chip_shift);
-		chipsel = chip;
-	} else {
-		chip = 0;
-		chipsel = -1;
-	}
-
-	td->version[chip]++;
-	if (md)
-		md->version[chip]++;
-
-	/* Write the bad block table to the device ? */
-	if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
-		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);
-	}
-
-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
- */
-static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
-
-static struct nand_bbt_descr smallpage_memorybased = {
-	.options = 0,
-	.offs = 5,
-	.len = 1,
-	.pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr largepage_memorybased = {
-	.options = 0,
-	.offs = 0,
-	.len = 2,
-	.pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr smallpage_flashbased = {
-	.options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
-	.offs = 5,
-	.len = 1,
-	.pattern = scan_ff_pattern
-};
-
-static struct nand_bbt_descr largepage_flashbased = {
-	.options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
-	.offs = 0,
-	.len = 2,
-	.pattern = scan_ff_pattern
-};
-
-static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 };
-
-static struct nand_bbt_descr agand_flashbased = {
-	.options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
-	.offs = 0x20,
-	.len = 6,
-	.pattern = scan_agand_pattern
-};
-
-/* Generic flash bbt decriptors
-*/
-static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
-static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
-
-static struct nand_bbt_descr bbt_main_descr = {
-	.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-		| NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
-	.offs =	8,
-	.len = 4,
-	.veroffs = 12,
-	.maxblocks = 4,
-	.pattern = bbt_pattern
-};
-
-static struct nand_bbt_descr bbt_mirror_descr = {
-	.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-		| NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
-	.offs =	8,
-	.len = 4,
-	.veroffs = 12,
-	.maxblocks = 4,
-	.pattern = mirror_pattern
-};
-
-/**
- * nand_default_bbt - [NAND Interface] Select a default bad block table for the device
- * @mtd:	MTD device structure
- *
- * This function selects the default bad block table
- * support for the device and calls the nand_scan_bbt function
- *
-*/
-int nand_default_bbt (struct mtd_info *mtd)
-{
-	struct nand_chip *this = mtd->priv;
-
-	/* Default for AG-AND. We must use a flash based
-	 * bad block table as the devices have factory marked
-	 * _good_ blocks. Erasing those blocks leads to loss
-	 * 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) {
-			this->bbt_td = &bbt_main_descr;
-			this->bbt_md = &bbt_mirror_descr;
-		}
-		this->options |= NAND_USE_FLASH_BBT;
-		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 */
-		if (!this->bbt_td) {
-			this->bbt_td = &bbt_main_descr;
-			this->bbt_md = &bbt_mirror_descr;
-		}
-		if (!this->badblock_pattern) {
-			this->badblock_pattern = (mtd->oobblock > 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;
-		}
-	}
-	return nand_scan_bbt (mtd, this->badblock_pattern);
-}
-
-/**
- * nand_isbad_bbt - [NAND Interface] Check if a block is bad
- * @mtd:	MTD device structure
- * @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)
-{
-	struct nand_chip *this = mtd->priv;
-	int block;
-	uint8_t	res;
-
-	/* Get block number * 2 */
-	block = (int) (offs >> (this->bbt_erase_shift - 1));
-	res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
-
-	DEBUG (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;
-	}
-	return 1;
-}
-
-#endif
diff --git a/drivers/nand/nand_ecc.c b/drivers/nand/nand_ecc.c
deleted file mode 100644
index 4c532b0..0000000
--- a/drivers/nand/nand_ecc.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * This file contains an ECC algorithm from Toshiba that detects and
- * corrects 1 bit errors in a 256 byte block of data.
- *
- * drivers/mtd/nand/nand_ecc.c
- *
- * 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 $
- *
- * 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
- * Free Software Foundation; either version 2 or (at your option) any
- * later version.
- *
- * This file is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this file; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * As a special exception, if other files instantiate templates or use
- * macros or inline functions from these files, or you compile these
- * files and link them with other works to produce a work based on these
- * files, these files do not by themselves cause the resulting work to be
- * covered by the GNU General Public License. However the source code for
- * these files must still be made available in accordance with section (3)
- * of the GNU General Public License.
- *
- * This exception does not invalidate any other reasons why a work based on
- * this file might be covered by the GNU General Public License.
- */
-
-#include <common.h>
-
-#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
-
-#include<linux/mtd/mtd.h>
-
-/*
- * NAND-SPL has no sofware ECC for now, so don't include nand_calculate_ecc(),
- * only nand_correct_data() is needed
- */
-
-#ifndef CONFIG_NAND_SPL
-/*
- * Pre-calculated 256-way 1 byte column parity
- */
-static const u_char nand_ecc_precalc_table[] = {
-	0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a, 0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00,
-	0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f, 0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
-	0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c, 0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
-	0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59, 0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
-	0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33, 0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
-	0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56, 0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
-	0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55, 0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
-	0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30, 0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
-	0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30, 0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
-	0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55, 0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
-	0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56, 0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
-	0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33, 0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
-	0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59, 0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
-	0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c, 0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
-	0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f, 0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
-	0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a, 0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00
-};
-
-/**
- * nand_calculate_ecc - [NAND Interface] Calculate 3-byte ECC for 256-byte block
- * @mtd:	MTD block structure
- * @dat:	raw data
- * @ecc_code:	buffer for ECC
- */
-int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
-		       u_char *ecc_code)
-{
-	uint8_t idx, reg1, reg2, reg3, tmp1, tmp2;
-	int i;
-
-	/* Initialize variables */
-	reg1 = reg2 = reg3 = 0;
-
-	/* Build up column parity */
-	for(i = 0; i < 256; i++) {
-		/* Get CP0 - CP5 from table */
-		idx = nand_ecc_precalc_table[*dat++];
-		reg1 ^= (idx & 0x3f);
-
-		/* All bit XOR = 1 ? */
-		if (idx & 0x40) {
-			reg3 ^= (uint8_t) i;
-			reg2 ^= ~((uint8_t) i);
-		}
-	}
-
-	/* Create non-inverted ECC code from line parity */
-	tmp1  = (reg3 & 0x80) >> 0; /* B7 -> B7 */
-	tmp1 |= (reg2 & 0x80) >> 1; /* B7 -> B6 */
-	tmp1 |= (reg3 & 0x40) >> 1; /* B6 -> B5 */
-	tmp1 |= (reg2 & 0x40) >> 2; /* B6 -> B4 */
-	tmp1 |= (reg3 & 0x20) >> 2; /* B5 -> B3 */
-	tmp1 |= (reg2 & 0x20) >> 3; /* B5 -> B2 */
-	tmp1 |= (reg3 & 0x10) >> 3; /* B4 -> B1 */
-	tmp1 |= (reg2 & 0x10) >> 4; /* B4 -> B0 */
-
-	tmp2  = (reg3 & 0x08) << 4; /* B3 -> B7 */
-	tmp2 |= (reg2 & 0x08) << 3; /* B3 -> B6 */
-	tmp2 |= (reg3 & 0x04) << 3; /* B2 -> B5 */
-	tmp2 |= (reg2 & 0x04) << 2; /* B2 -> B4 */
-	tmp2 |= (reg3 & 0x02) << 2; /* B1 -> B3 */
-	tmp2 |= (reg2 & 0x02) << 1; /* B1 -> B2 */
-	tmp2 |= (reg3 & 0x01) << 1; /* B0 -> B1 */
-	tmp2 |= (reg2 & 0x01) << 0; /* B7 -> B0 */
-
-	/* Calculate final ECC code */
-#ifdef CONFIG_MTD_NAND_ECC_SMC
-	ecc_code[0] = ~tmp2;
-	ecc_code[1] = ~tmp1;
-#else
-	ecc_code[0] = ~tmp1;
-	ecc_code[1] = ~tmp2;
-#endif
-	ecc_code[2] = ((~reg1) << 2) | 0x03;
-
-	return 0;
-}
-#endif /* CONFIG_NAND_SPL */
-
-static inline int countbits(uint32_t byte)
-{
-	int res = 0;
-
-	for (;byte; byte >>= 1)
-		res += byte & 0x01;
-	return res;
-}
-
-/**
- * nand_correct_data - [NAND Interface] Detect and correct bit error(s)
- * @mtd:	MTD block structure
- * @dat:	raw data read from the chip
- * @read_ecc:	ECC from the chip
- * @calc_ecc:	the ECC calculated from raw data
- *
- * Detect and correct a 1 bit error for 256 byte block
- */
-int nand_correct_data(struct mtd_info *mtd, u_char *dat,
-		      u_char *read_ecc, u_char *calc_ecc)
-{
-	uint8_t s0, s1, s2;
-
-#ifdef CONFIG_MTD_NAND_ECC_SMC
-	s0 = calc_ecc[0] ^ read_ecc[0];
-	s1 = calc_ecc[1] ^ read_ecc[1];
-	s2 = calc_ecc[2] ^ read_ecc[2];
-#else
-	s1 = calc_ecc[0] ^ read_ecc[0];
-	s0 = calc_ecc[1] ^ read_ecc[1];
-	s2 = calc_ecc[2] ^ read_ecc[2];
-#endif
-	if ((s0 | s1 | s2) == 0)
-		return 0;
-
-	/* Check for a single bit error */
-	if( ((s0 ^ (s0 >> 1)) & 0x55) == 0x55 &&
-	    ((s1 ^ (s1 >> 1)) & 0x55) == 0x55 &&
-	    ((s2 ^ (s2 >> 1)) & 0x54) == 0x54) {
-
-		uint32_t byteoffs, bitnum;
-
-		byteoffs = (s1 << 0) & 0x80;
-		byteoffs |= (s1 << 1) & 0x40;
-		byteoffs |= (s1 << 2) & 0x20;
-		byteoffs |= (s1 << 3) & 0x10;
-
-		byteoffs |= (s0 >> 4) & 0x08;
-		byteoffs |= (s0 >> 3) & 0x04;
-		byteoffs |= (s0 >> 2) & 0x02;
-		byteoffs |= (s0 >> 1) & 0x01;
-
-		bitnum = (s2 >> 5) & 0x04;
-		bitnum |= (s2 >> 4) & 0x02;
-		bitnum |= (s2 >> 3) & 0x01;
-
-		dat[byteoffs] ^= (1 << bitnum);
-
-		return 1;
-	}
-
-	if(countbits(s0 | ((uint32_t)s1 << 8) | ((uint32_t)s2 <<16)) == 1)
-		return 1;
-
-	return -1;
-}
-
-#endif
diff --git a/drivers/nand/nand_ids.c b/drivers/nand/nand_ids.c
deleted file mode 100644
index 6d7e347..0000000
--- a/drivers/nand/nand_ids.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- *  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 $
- *
- * 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.
- *
- */
-
-#include <common.h>
-
-#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
-
-#include <linux/mtd/nand.h>
-
-/*
-*	Chip ID list
-*
-*	Name. ID code, pagesize, chipsize in MegaByte, eraseblock size,
-*	options
-*
-* 	Pagesize; 0, 256, 512
-*	0 	get this information from the extended chip ID
-+	256	256 Byte page size
-*	512	512 Byte page size
-*/
-struct nand_flash_dev nand_flash_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", 	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},
-
-	{"NAND 8MiB 1,8V 8-bit", 	0x39, 512, 8, 0x2000, 0},
-	{"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},
-
-	{"NAND 16MiB 1,8V 8-bit", 	0x33, 512, 16, 0x4000, 0},
-	{"NAND 16MiB 3,3V 8-bit", 	0x73, 512, 16, 0x4000, 0},
-	{"NAND 16MiB 1,8V 16-bit", 	0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16},
-	{"NAND 16MiB 3,3V 16-bit", 	0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16},
-
-	{"NAND 32MiB 1,8V 8-bit", 	0x35, 512, 32, 0x4000, 0},
-	{"NAND 32MiB 3,3V 8-bit", 	0x75, 512, 32, 0x4000, 0},
-	{"NAND 32MiB 1,8V 16-bit", 	0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16},
-	{"NAND 32MiB 3,3V 16-bit", 	0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16},
-
-	{"NAND 64MiB 1,8V 8-bit", 	0x36, 512, 64, 0x4000, 0},
-	{"NAND 64MiB 3,3V 8-bit", 	0x76, 512, 64, 0x4000, 0},
-	{"NAND 64MiB 1,8V 16-bit", 	0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16},
-	{"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 3,3V 8-bit", 	0x79, 512, 128, 0x4000, 0},
-	{"NAND 128MiB 1,8V 16-bit", 	0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16},
-	{"NAND 128MiB 3,3V 16-bit", 	0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16},
-
-	{"NAND 256MiB 3,3V 8-bit", 	0x71, 512, 256, 0x4000, 0},
-
-	{"NAND 512MiB 3,3V 8-bit", 	0xDC, 512, 512, 0x4000, 0},
-
-	/* These are the new chips with large page size. The pagesize
-	* and the erasesize is determined from the extended id bytes
-	*/
-	/* 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},
-
-	/* 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},
-
-	/* 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},
-
-	/* 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},
-
-	/* 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
-	 */
-	{"AND 128MiB 3,3V 8-bit",	0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR | NAND_4PAGE_ARRAY},
-
-	{NULL,}
-};
-
-/*
-*	Manufacturer ID list
-*/
-struct nand_manufacturers nand_manuf_ids[] = {
-	{NAND_MFR_TOSHIBA, "Toshiba"},
-	{NAND_MFR_SAMSUNG, "Samsung"},
-	{NAND_MFR_FUJITSU, "Fujitsu"},
-	{NAND_MFR_NATIONAL, "National"},
-	{NAND_MFR_RENESAS, "Renesas"},
-	{NAND_MFR_STMICRO, "ST Micro"},
-	{NAND_MFR_MICRON, "Micron"},
-	{0x0, "Unknown"}
-};
-#endif
diff --git a/drivers/nand/nand_util.c b/drivers/nand/nand_util.c
deleted file mode 100644
index 4fd4e16..0000000
--- a/drivers/nand/nand_util.c
+++ /dev/null
@@ -1,872 +0,0 @@
-/*
- * drivers/nand/nand_util.c
- *
- * Copyright (C) 2006 by Weiss-Electronic GmbH.
- * All rights reserved.
- *
- * @author:	Guido Classen <clagix@gmail.com>
- * @descr:	NAND Flash support
- * @references: borrowed heavily from Linux mtd-utils code:
- *		flash_eraseall.c by Arcom Control System Ltd
- *		nandwrite.c by Steven J. Hill (sjhill@realitydiluted.com)
- *			       and Thomas Gleixner (tglx@linutronix.de)
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-
-#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
-
-#include <command.h>
-#include <watchdog.h>
-#include <malloc.h>
-#include <div64.h>
-
-#include <nand.h>
-#include <jffs2/jffs2.h>
-
-typedef struct erase_info erase_info_t;
-typedef struct mtd_info	  mtd_info_t;
-
-/* support only for native endian JFFS2 */
-#define cpu_to_je16(x) (x)
-#define cpu_to_je32(x) (x)
-
-/*****************************************************************************/
-static int nand_block_bad_scrub(struct mtd_info *mtd, loff_t ofs, int getchip)
-{
-	return 0;
-}
-
-/**
- * nand_erase_opts: - erase NAND flash with support for various options
- *		      (jffs2 formating)
- *
- * @param meminfo	NAND device to erase
- * @param opts		options,  @see struct nand_erase_options
- * @return		0 in case of success
- *
- * This code is ported from flash_eraseall.c from Linux mtd utils by
- * Arcom Control System Ltd.
- */
-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;
-
-	memset(&erase, 0, sizeof(erase));
-
-	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));
-	}
-
-	/* scrub option allows to erase badblock. To prevent internal
-	 * check from erase() method, set block check method to dummy
-	 * and disable bad block table while erasing.
-	 */
-	if (opts->scrub) {
-		struct nand_chip *priv_nand = meminfo->priv;
-
-		nand_block_bad_old = priv_nand->block_bad;
-		priv_nand->block_bad = nand_block_bad_scrub;
-		/* we don't need the bad block table anymore...
-		 * after scrub, there are no bad blocks left!
-		 */
-		if (priv_nand->bbt) {
-			kfree(priv_nand->bbt);
-		}
-		priv_nand->bbt = NULL;
-	}
-
-	for (;
-	     erase.addr < opts->offset + erase_length;
-	     erase.addr += meminfo->erasesize) {
-
-		WATCHDOG_RESET ();
-
-		if (!opts->scrub && bbtest) {
-			int ret = meminfo->block_isbad(meminfo, erase.addr);
-			if (ret > 0) {
-				if (!opts->quiet)
-					printf("\rSkipping bad block at  "
-					       "0x%08x                   "
-					       "                         \n",
-					       erase.addr);
-				continue;
-
-			} else if (ret < 0) {
-				printf("\n%s: MTD get bad block failed: %d\n",
-				       mtd_device,
-				       ret);
-				return -1;
-			}
-		}
-
-		result = meminfo->erase(meminfo, &erase);
-		if (result != 0) {
-			printf("\n%s: MTD Erase failure: %d\n",
-			       mtd_device, result);
-			continue;
-		}
-
-		/* 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);
-			}
-		}
-
-		if (!opts->quiet) {
-			unsigned long long n =(unsigned long long)
-				(erase.addr + meminfo->erasesize - opts->offset)
-				* 100;
-			int percent;
-
-			do_div(n, erase_length);
-			percent = (int)n;
-
-			/* output progress message only at whole percent
-			 * steps to reduce the number of messages printed
-			 * on (slow) serial consoles
-			 */
-			if (percent != percent_complete) {
-				percent_complete = percent;
-
-				printf("\rErasing at 0x%x -- %3d%% complete.",
-				       erase.addr, percent);
-
-				if (opts->jffs2 && result == 0)
-					printf(" Cleanmarker written at 0x%x.",
-					       erase.addr);
-			}
-		}
-	}
-	if (!opts->quiet)
-		printf("\n");
-
-	if (nand_block_bad_old) {
-		struct nand_chip *priv_nand = meminfo->priv;
-
-		priv_nand->block_bad = nand_block_bad_old;
-		priv_nand->scan_bbt(meminfo);
-	}
-
-	return 0;
-}
-
-#define MAX_PAGE_SIZE	2048
-#define MAX_OOB_SIZE	64
-
-/*
- * buffer array used for writing data
- */
-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 = {
-	.useecc = MTD_NANDECC_OFF,
-};
-
-static struct nand_oobinfo jffs2_oobinfo = {
-	.useecc = MTD_NANDECC_PLACE,
-	.eccbytes = 6,
-	.eccpos = { 0, 1, 2, 3, 6, 7 }
-};
-
-static struct nand_oobinfo yaffs_oobinfo = {
-	.useecc = MTD_NANDECC_PLACE,
-	.eccbytes = 6,
-	.eccpos = { 8, 9, 10, 13, 14, 15}
-};
-
-static struct nand_oobinfo autoplace_oobinfo = {
-	.useecc = MTD_NANDECC_AUTOPLACE
-};
-
-/**
- * nand_write_opts: - write image to NAND flash with support for various options
- *
- * @param meminfo	NAND device to erase
- * @param opts		write options (@see nand_write_options)
- * @return		0 in case of success
- *
- * This code is ported from nandwrite.c from Linux mtd utils by
- * Steven J. Hill and Thomas Gleixner.
- */
-int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
-{
-	int imglen = 0;
-	int pagelen;
-	int baderaseblock;
-	int blockstart = -1;
-	loff_t offs;
-	int readlen;
-	int oobinfochanged = 0;
-	int percent_complete = -1;
-	struct nand_oobinfo old_oobinfo;
-	ulong mtdoffset = opts->offset;
-	ulong erasesize_blockalign;
-	u_char *buffer = opts->buffer;
-	size_t written;
-	int result;
-
-	if (opts->pad && opts->writeoob) {
-		printf("Can't pad when oob data is present.\n");
-		return -1;
-	}
-
-	/* set erasesize to specified number of blocks - to match
-	 * jffs2 (virtual) block size */
-	if (opts->blockalign == 0) {
-		erasesize_blockalign = meminfo->erasesize;
-	} else {
-		erasesize_blockalign = meminfo->erasesize * opts->blockalign;
-	}
-
-	/* 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)) {
-		printf("Unknown flash (not normal NAND)\n");
-		return -1;
-	}
-
-	/* read the current oob info */
-	memcpy(&old_oobinfo, &meminfo->oobinfo, sizeof(old_oobinfo));
-
-	/* write without ecc? */
-	if (opts->noecc) {
-		memcpy(&meminfo->oobinfo, &none_oobinfo,
-		       sizeof(meminfo->oobinfo));
-		oobinfochanged = 1;
-	}
-
-	/* autoplace ECC? */
-	if (opts->autoplace && (old_oobinfo.useecc != MTD_NANDECC_AUTOPLACE)) {
-
-		memcpy(&meminfo->oobinfo, &autoplace_oobinfo,
-		       sizeof(meminfo->oobinfo));
-		oobinfochanged = 1;
-	}
-
-	/* force OOB layout for jffs2 or yaffs? */
-	if (opts->forcejffs2 || opts->forceyaffs) {
-		struct nand_oobinfo *oobsel =
-			opts->forcejffs2 ? &jffs2_oobinfo : &yaffs_oobinfo;
-
-		if (meminfo->oobsize == 8) {
-			if (opts->forceyaffs) {
-				printf("YAFSS cannot operate on "
-				       "256 Byte page size\n");
-				goto restoreoob;
-			}
-			/* Adjust number of ecc bytes */
-			jffs2_oobinfo.eccbytes = 3;
-		}
-
-		memcpy(&meminfo->oobinfo, oobsel, sizeof(meminfo->oobinfo));
-	}
-
-	/* get image length */
-	imglen = opts->length;
-	pagelen = meminfo->oobblock
-		+ ((opts->writeoob != 0) ? meminfo->oobsize : 0);
-
-	/* check, if file is pagealigned */
-	if ((!opts->pad) && ((imglen % pagelen) != 0)) {
-		printf("Input block length is not page aligned\n");
-		goto restoreoob;
-	}
-
-	/* check, if length fits into device */
-	if (((imglen / pagelen) * meminfo->oobblock)
-	     > (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);
-		printf("Input block does not fit into device\n");
-		goto restoreoob;
-	}
-
-	if (!opts->quiet)
-		printf("\n");
-
-	/* get data from input and write to the device */
-	while (imglen && (mtdoffset < meminfo->size)) {
-
-		WATCHDOG_RESET ();
-
-		/*
-		 * new eraseblock, check for bad block(s). Stay in the
-		 * loop to be sure if the offset changes because of
-		 * a bad block, that the next block that will be
-		 * written to is also checked. Thus avoiding errors if
-		 * the block(s) after the skipped block(s) is also bad
-		 * (number of blocks depending on the blockalign
-		 */
-		while (blockstart != (mtdoffset & (~erasesize_blockalign+1))) {
-			blockstart = mtdoffset & (~erasesize_blockalign+1);
-			offs = blockstart;
-			baderaseblock = 0;
-
-			/* check all the blocks in an erase block for
-			 * bad blocks */
-			do {
-				int ret = meminfo->block_isbad(meminfo, offs);
-
-				if (ret < 0) {
-					printf("Bad block check failed\n");
-					goto restoreoob;
-				}
-				if (ret == 1) {
-					baderaseblock = 1;
-					if (!opts->quiet)
-						printf("\rBad block at 0x%lx "
-						       "in erase block from "
-						       "0x%x will be skipped\n",
-						       (long) offs,
-						       blockstart);
-				}
-
-				if (baderaseblock) {
-					mtdoffset = blockstart
-						+ erasesize_blockalign;
-				}
-				offs +=	 erasesize_blockalign
-					/ opts->blockalign;
-			} while (offs < blockstart + erasesize_blockalign);
-		}
-
-		readlen = meminfo->oobblock;
-		if (opts->pad && (imglen < readlen)) {
-			readlen = imglen;
-			memset(data_buf + readlen, 0xff,
-			       meminfo->oobblock - readlen);
-		}
-
-		/* read page data from input memory buffer */
-		memcpy(data_buf, buffer, readlen);
-		buffer += readlen;
-
-		if (opts->writeoob) {
-			/* read OOB data from input memory block, exit
-			 * on failure */
-			memcpy(oob_buf, buffer, meminfo->oobsize);
-			buffer += meminfo->oobsize;
-
-			/* write OOB data first, as ecc will be placed
-			 * in there*/
-			result = meminfo->write_oob(meminfo,
-						    mtdoffset,
-						    meminfo->oobsize,
-						    &written,
-						    (unsigned char *)
-						    &oob_buf);
-
-			if (result != 0) {
-				printf("\nMTD writeoob failure: %d\n",
-				       result);
-				goto restoreoob;
-			}
-			imglen -= meminfo->oobsize;
-		}
-
-		/* write out the page data */
-		result = meminfo->write(meminfo,
-					mtdoffset,
-					meminfo->oobblock,
-					&written,
-					(unsigned char *) &data_buf);
-
-		if (result != 0) {
-			printf("writing NAND page at offset 0x%lx failed\n",
-			       mtdoffset);
-			goto restoreoob;
-		}
-		imglen -= readlen;
-
-		if (!opts->quiet) {
-			unsigned long long n = (unsigned long long)
-				 (opts->length-imglen) * 100;
-			int percent;
-
-			do_div(n, opts->length);
-			percent = (int)n;
-
-			/* output progress message only at whole percent
-			 * steps to reduce the number of messages printed
-			 * on (slow) serial consoles
-			 */
-			if (percent != percent_complete) {
-				printf("\rWriting data at 0x%x "
-				       "-- %3d%% complete.",
-				       mtdoffset, percent);
-				percent_complete = percent;
-			}
-		}
-
-		mtdoffset += meminfo->oobblock;
-	}
-
-	if (!opts->quiet)
-		printf("\n");
-
-restoreoob:
-	if (oobinfochanged) {
-		memcpy(&meminfo->oobinfo, &old_oobinfo,
-		       sizeof(meminfo->oobinfo));
-	}
-
-	if (imglen > 0) {
-		printf("Data did not fit into device, due to bad blocks\n");
-		return -1;
-	}
-
-	/* return happy */
-	return 0;
-}
-
-/**
- * nand_read_opts: - read image from NAND flash with support for various options
- *
- * @param meminfo	NAND device to erase
- * @param opts		read options (@see struct nand_read_options)
- * @return		0 in case of success
- *
- */
-int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts)
-{
-	int imglen = opts->length;
-	int pagelen;
-	int baderaseblock;
-	int blockstart = -1;
-	int percent_complete = -1;
-	loff_t offs;
-	size_t readlen;
-	ulong mtdoffset = opts->offset;
-	u_char *buffer = opts->buffer;
-	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)) {
-		printf("Unknown flash (not normal NAND)\n");
-		return -1;
-	}
-
-	pagelen = meminfo->oobblock
-		+ ((opts->readoob != 0) ? meminfo->oobsize : 0);
-
-	/* check, if length is not larger than device */
-	if (((imglen / pagelen) * meminfo->oobblock)
-	     > (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);
-		printf("Input block is larger than device\n");
-		return -1;
-	}
-
-	if (!opts->quiet)
-		printf("\n");
-
-	/* get data from input and write to the device */
-	while (imglen && (mtdoffset < meminfo->size)) {
-
-		WATCHDOG_RESET ();
-
-		/*
-		 * new eraseblock, check for bad block(s). Stay in the
-		 * loop to be sure if the offset changes because of
-		 * a bad block, that the next block that will be
-		 * written to is also checked. Thus avoiding errors if
-		 * the block(s) after the skipped block(s) is also bad
-		 * (number of blocks depending on the blockalign
-		 */
-		while (blockstart != (mtdoffset & (~meminfo->erasesize+1))) {
-			blockstart = mtdoffset & (~meminfo->erasesize+1);
-			offs = blockstart;
-			baderaseblock = 0;
-
-			/* check all the blocks in an erase block for
-			 * bad blocks */
-			do {
-				int ret = meminfo->block_isbad(meminfo, offs);
-
-				if (ret < 0) {
-					printf("Bad block check failed\n");
-					return -1;
-				}
-				if (ret == 1) {
-					baderaseblock = 1;
-					if (!opts->quiet)
-						printf("\rBad block at 0x%lx "
-						       "in erase block from "
-						       "0x%x will be skipped\n",
-						       (long) offs,
-						       blockstart);
-				}
-
-				if (baderaseblock) {
-					mtdoffset = blockstart
-						+ meminfo->erasesize;
-				}
-				offs +=	 meminfo->erasesize;
-
-			} while (offs < blockstart + meminfo->erasesize);
-		}
-
-
-		/* read page data to memory buffer */
-		result = meminfo->read(meminfo,
-				       mtdoffset,
-				       meminfo->oobblock,
-				       &readlen,
-				       (unsigned char *) &data_buf);
-
-		if (result != 0) {
-			printf("reading NAND page at offset 0x%lx failed\n",
-			       mtdoffset);
-			return -1;
-		}
-
-		if (imglen < readlen) {
-			readlen = imglen;
-		}
-
-		memcpy(buffer, data_buf, readlen);
-		buffer += readlen;
-		imglen -= readlen;
-
-		if (opts->readoob) {
-			result = meminfo->read_oob(meminfo,
-						   mtdoffset,
-						   meminfo->oobsize,
-						   &readlen,
-						   (unsigned char *)
-						   &oob_buf);
-
-			if (result != 0) {
-				printf("\nMTD readoob failure: %d\n",
-				       result);
-				return -1;
-			}
-
-
-			if (imglen < readlen) {
-				readlen = imglen;
-			}
-
-			memcpy(buffer, oob_buf, readlen);
-
-			buffer += readlen;
-			imglen -= readlen;
-		}
-
-		if (!opts->quiet) {
-			unsigned long long n = (unsigned long long)
-				 (opts->length-imglen) * 100;
-			int percent;
-
-			do_div(n, opts->length);
-			percent = (int)n;
-
-			/* output progress message only at whole percent
-			 * steps to reduce the number of messages printed
-			 * on (slow) serial consoles
-			 */
-			if (percent != percent_complete) {
-			if (!opts->quiet)
-				printf("\rReading data from 0x%x "
-				       "-- %3d%% complete.",
-				       mtdoffset, percent);
-				percent_complete = percent;
-			}
-		}
-
-		mtdoffset += meminfo->oobblock;
-	}
-
-	if (!opts->quiet)
-		printf("\n");
-
-	if (imglen > 0) {
-		printf("Could not read entire image due to bad blocks\n");
-		return -1;
-	}
-
-	/* return happy */
-	return 0;
-}
-
-/******************************************************************************
- * Support for locking / unlocking operations of some NAND devices
- *****************************************************************************/
-
-#define NAND_CMD_LOCK		0x2a
-#define NAND_CMD_LOCK_TIGHT	0x2c
-#define NAND_CMD_UNLOCK1	0x23
-#define NAND_CMD_UNLOCK2	0x24
-#define NAND_CMD_LOCK_STATUS	0x7a
-
-/**
- * nand_lock: Set all pages of NAND flash chip to the LOCK or LOCK-TIGHT
- *	      state
- *
- * @param meminfo	nand mtd instance
- * @param tight		bring device in lock tight mode
- *
- * @return		0 on success, -1 in case of error
- *
- * The lock / lock-tight command only applies to the whole chip. To get some
- * parts of the chip lock and others unlocked use the following sequence:
- *
- * - Lock all pages of the chip using nand_lock(mtd, 0) (or the lockpre pin)
- * - Call nand_unlock() once for each consecutive area to be unlocked
- * - If desired: Bring the chip to the lock-tight state using nand_lock(mtd, 1)
- *
- *   If the device is in lock-tight state software can't change the
- *   current active lock/unlock state of all pages. nand_lock() / nand_unlock()
- *   calls will fail. It is only posible to leave lock-tight state by
- *   an hardware signal (low pulse on _WP pin) or by power down.
- */
-int nand_lock(nand_info_t *meminfo, int tight)
-{
-	int ret = 0;
-	int status;
-	struct nand_chip *this = meminfo->priv;
-
-	/* select the NAND device */
-	this->select_chip(meminfo, 0);
-
-	this->cmdfunc(meminfo,
-		      (tight ? NAND_CMD_LOCK_TIGHT : NAND_CMD_LOCK),
-		      -1, -1);
-
-	/* call wait ready function */
-	status = this->waitfunc(meminfo, this, FL_WRITING);
-
-	/* see if device thinks it succeeded */
-	if (status & 0x01) {
-		ret = -1;
-	}
-
-	/* de-select the NAND device */
-	this->select_chip(meminfo, -1);
-	return ret;
-}
-
-/**
- * nand_get_lock_status: - query current lock state from one page of NAND
- *			   flash
- *
- * @param meminfo	nand mtd instance
- * @param offset	page address to query (muss be page aligned!)
- *
- * @return		-1 in case of error
- *			>0 lock status:
- *			  bitfield with the following combinations:
- *			  NAND_LOCK_STATUS_TIGHT: page in tight state
- *			  NAND_LOCK_STATUS_LOCK:  page locked
- *			  NAND_LOCK_STATUS_UNLOCK: page unlocked
- *
- */
-int nand_get_lock_status(nand_info_t *meminfo, ulong offset)
-{
-	int ret = 0;
-	int chipnr;
-	int page;
-	struct nand_chip *this = meminfo->priv;
-
-	/* select the NAND device */
-	chipnr = (int)(offset >> this->chip_shift);
-	this->select_chip(meminfo, chipnr);
-
-
-	if ((offset & (meminfo->oobblock - 1)) != 0) {
-		printf ("nand_get_lock_status: "
-			"Start address must be beginning of "
-			"nand page!\n");
-		ret = -1;
-		goto out;
-	}
-
-	/* check the Lock Status */
-	page = (int)(offset >> this->page_shift);
-	this->cmdfunc(meminfo, NAND_CMD_LOCK_STATUS, -1, page & this->pagemask);
-
-	ret = this->read_byte(meminfo) & (NAND_LOCK_STATUS_TIGHT
-					  | NAND_LOCK_STATUS_LOCK
-					  | NAND_LOCK_STATUS_UNLOCK);
-
- out:
-	/* de-select the NAND device */
-	this->select_chip(meminfo, -1);
-	return ret;
-}
-
-/**
- * nand_unlock: - Unlock area of NAND pages
- *		  only one consecutive area can be unlocked at one time!
- *
- * @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)
- *
- * @return		0 on success, -1 in case of error
- */
-int nand_unlock(nand_info_t *meminfo, ulong start, ulong length)
-{
-	int ret = 0;
-	int chipnr;
-	int status;
-	int page;
-	struct nand_chip *this = meminfo->priv;
-	printf ("nand_unlock: start: %08x, length: %d!\n",
-		(int)start, (int)length);
-
-	/* select the NAND device */
-	chipnr = (int)(start >> this->chip_shift);
-	this->select_chip(meminfo, chipnr);
-
-	/* check the WP bit */
-	this->cmdfunc(meminfo, NAND_CMD_STATUS, -1, -1);
-	if ((this->read_byte(meminfo) & 0x80) == 0) {
-		printf ("nand_unlock: Device is write protected!\n");
-		ret = -1;
-		goto out;
-	}
-
-	if ((start & (meminfo->oobblock - 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) {
-		printf ("nand_unlock: Length must be a multiple of nand page "
-			"size!\n");
-		ret = -1;
-		goto out;
-	}
-
-	/* submit address of first page to unlock */
-	page = (int)(start >> this->page_shift);
-	this->cmdfunc(meminfo, NAND_CMD_UNLOCK1, -1, page & this->pagemask);
-
-	/* submit ADDRESS of LAST page to unlock */
-	page += (int)(length >> this->page_shift) - 1;
-	this->cmdfunc(meminfo, NAND_CMD_UNLOCK2, -1, page & this->pagemask);
-
-	/* call wait ready function */
-	status = this->waitfunc(meminfo, this, FL_WRITING);
-	/* see if device thinks it succeeded */
-	if (status & 0x01) {
-		/* there was an error */
-		ret = -1;
-		goto out;
-	}
-
- out:
-	/* de-select the NAND device */
-	this->select_chip(meminfo, -1);
-	return ret;
-}
-
-#endif