Remove legacy NAND and disk on chip code.

Legacy NAND had been scheduled for removal.  Any boards that use this
were already not building in the previous release due to an #error.

The disk on chip code in common/cmd_doc.c relies on legacy NAND,
and it has also been removed.  There is newer disk on chip code
in drivers/mtd/nand; someone with access to hardware and sufficient
time and motivation can try to get that working, but for now disk
on chip is not supported.

Signed-off-by: Scott Wood <scottwood@freescale.com>

7 files changed, 0 insertions, 2600 deletions

diff --git a/common/Makefile b/common/Makefile
index c8a997b..dd6636b 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -83,7 +83,6 @@ ifdef CONFIG_POST
 COBJS-$(CONFIG_CMD_DIAG) += cmd_diag.o
 endif
 COBJS-$(CONFIG_CMD_DISPLAY) += cmd_display.o
-COBJS-$(CONFIG_CMD_DOC) += cmd_doc.o
 COBJS-$(CONFIG_CMD_DTT) += cmd_dtt.o
 COBJS-$(CONFIG_ENV_IS_IN_EEPROM) += cmd_eeprom.o
 COBJS-$(CONFIG_CMD_EEPROM) += cmd_eeprom.o
@@ -150,7 +149,6 @@ COBJS-$(CONFIG_VFD) += cmd_vfd.o
 
 # others
 COBJS-$(CONFIG_DDR_SPD) += ddr_spd.o
-COBJS-$(CONFIG_CMD_DOC) += docecc.o
 COBJS-$(CONFIG_HWCONFIG) += hwconfig.o
 COBJS-$(CONFIG_CONSOLE_MUX) += iomux.o
 COBJS-y += flash.o
diff --git a/common/cmd_doc.c b/common/cmd_doc.c
deleted file mode 100644
index 5cc90f0..0000000
--- a/common/cmd_doc.c
+++ /dev/null
@@ -1,1644 +0,0 @@
-/*
- * Driver for Disk-On-Chip 2000 and Millennium
- * (c) 1999 Machine Vision Holdings, Inc.
- * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
- *
- * $Id: doc2000.c,v 1.46 2001/10/02 15:05:13 dwmw2 Exp $
- */
-
-#include <common.h>
-#include <config.h>
-#include <command.h>
-#include <malloc.h>
-#include <asm/io.h>
-#include <linux/mtd/nftl.h>
-#include <linux/mtd/doc2000.h>
-
-#error This code is broken and will be removed outright in the next release.
-#error If you need diskonchip support, please update the Linux driver in
-#error drivers/mtd/nand/diskonchip.c to work with u-boot.
-
-/*
- * ! BROKEN !
- *
- * TODO: must be implemented and tested by someone with HW
- */
-#if 0
-#ifdef CONFIG_SYS_DOC_SUPPORT_2000
-#define DoC_is_2000(doc) (doc->ChipID == DOC_ChipID_Doc2k)
-#else
-#define DoC_is_2000(doc) (0)
-#endif
-
-#ifdef CONFIG_SYS_DOC_SUPPORT_MILLENNIUM
-#define DoC_is_Millennium(doc) (doc->ChipID == DOC_ChipID_DocMil)
-#else
-#define DoC_is_Millennium(doc) (0)
-#endif
-
-/* CONFIG_SYS_DOC_PASSIVE_PROBE:
-   In order to ensure that the BIOS checksum is correct at boot time, and
-   hence that the onboard BIOS extension gets executed, the DiskOnChip
-   goes into reset mode when it is read sequentially: all registers
-   return 0xff until the chip is woken up again by writing to the
-   DOCControl register.
-
-   Unfortunately, this means that the probe for the DiskOnChip is unsafe,
-   because one of the first things it does is write to where it thinks
-   the DOCControl register should be - which may well be shared memory
-   for another device. I've had machines which lock up when this is
-   attempted. Hence the possibility to do a passive probe, which will fail
-   to detect a chip in reset mode, but is at least guaranteed not to lock
-   the machine.
-
-   If you have this problem, uncomment the following line:
-#define CONFIG_SYS_DOC_PASSIVE_PROBE
-*/
-
-#undef	DOC_DEBUG
-#undef	ECC_DEBUG
-#undef	PSYCHO_DEBUG
-#undef	NFTL_DEBUG
-
-static struct DiskOnChip doc_dev_desc[CONFIG_SYS_MAX_DOC_DEVICE];
-
-/* Current DOC Device	*/
-static int curr_device = -1;
-
-/* Supported NAND flash devices */
-static struct nand_flash_dev nand_flash_ids[] = {
-	{"Toshiba TC5816BDC",     NAND_MFR_TOSHIBA, 0x64, 21, 1, 2, 0x1000, 0},
-	{"Toshiba TC5832DC",      NAND_MFR_TOSHIBA, 0x6b, 22, 0, 2, 0x2000, 0},
-	{"Toshiba TH58V128DC",    NAND_MFR_TOSHIBA, 0x73, 24, 0, 2, 0x4000, 0},
-	{"Toshiba TC58256FT/DC",  NAND_MFR_TOSHIBA, 0x75, 25, 0, 2, 0x4000, 0},
-	{"Toshiba TH58512FT",     NAND_MFR_TOSHIBA, 0x76, 26, 0, 3, 0x4000, 0},
-	{"Toshiba TC58V32DC",     NAND_MFR_TOSHIBA, 0xe5, 22, 0, 2, 0x2000, 0},
-	{"Toshiba TC58V64AFT/DC", NAND_MFR_TOSHIBA, 0xe6, 23, 0, 2, 0x2000, 0},
-	{"Toshiba TC58V16BDC",    NAND_MFR_TOSHIBA, 0xea, 21, 1, 2, 0x1000, 0},
-	{"Toshiba TH58100FT",     NAND_MFR_TOSHIBA, 0x79, 27, 0, 3, 0x4000, 0},
-	{"Samsung KM29N16000",    NAND_MFR_SAMSUNG, 0x64, 21, 1, 2, 0x1000, 0},
-	{"Samsung unknown 4Mb",   NAND_MFR_SAMSUNG, 0x6b, 22, 0, 2, 0x2000, 0},
-	{"Samsung KM29U128T",     NAND_MFR_SAMSUNG, 0x73, 24, 0, 2, 0x4000, 0},
-	{"Samsung KM29U256T",     NAND_MFR_SAMSUNG, 0x75, 25, 0, 2, 0x4000, 0},
-	{"Samsung unknown 64Mb",  NAND_MFR_SAMSUNG, 0x76, 26, 0, 3, 0x4000, 0},
-	{"Samsung KM29W32000",    NAND_MFR_SAMSUNG, 0xe3, 22, 0, 2, 0x2000, 0},
-	{"Samsung unknown 4Mb",   NAND_MFR_SAMSUNG, 0xe5, 22, 0, 2, 0x2000, 0},
-	{"Samsung KM29U64000",    NAND_MFR_SAMSUNG, 0xe6, 23, 0, 2, 0x2000, 0},
-	{"Samsung KM29W16000",    NAND_MFR_SAMSUNG, 0xea, 21, 1, 2, 0x1000, 0},
-	{"Samsung K9F5616Q0C",    NAND_MFR_SAMSUNG, 0x45, 25, 0, 2, 0x4000, 1},
-	{"Samsung K9K1216Q0C",    NAND_MFR_SAMSUNG, 0x46, 26, 0, 3, 0x4000, 1},
-	{"Samsung K9F1G08U0M",    NAND_MFR_SAMSUNG, 0xf1, 27, 0, 2, 0, 0},
-	{NULL,}
-};
-
-/* ------------------------------------------------------------------------- */
-
-int do_doc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-    int rcode = 0;
-
-    switch (argc) {
-    case 0:
-    case 1:
-	cmd_usage(cmdtp);
-	return 1;
-    case 2:
-	if (strcmp(argv[1],"info") == 0) {
-		int i;
-
-		putc ('\n');
-
-		for (i=0; i<CONFIG_SYS_MAX_DOC_DEVICE; ++i) {
-			if(doc_dev_desc[i].ChipID == DOC_ChipID_UNKNOWN)
-				continue; /* list only known devices */
-			printf ("Device %d: ", i);
-			doc_print(&doc_dev_desc[i]);
-		}
-		return 0;
-
-	} else if (strcmp(argv[1],"device") == 0) {
-		if ((curr_device < 0) || (curr_device >= CONFIG_SYS_MAX_DOC_DEVICE)) {
-			puts ("\nno devices available\n");
-			return 1;
-		}
-		printf ("\nDevice %d: ", curr_device);
-		doc_print(&doc_dev_desc[curr_device]);
-		return 0;
-	}
-	cmd_usage(cmdtp);
-	return 1;
-    case 3:
-	if (strcmp(argv[1],"device") == 0) {
-		int dev = (int)simple_strtoul(argv[2], NULL, 10);
-
-		printf ("\nDevice %d: ", dev);
-		if (dev >= CONFIG_SYS_MAX_DOC_DEVICE) {
-			puts ("unknown device\n");
-			return 1;
-		}
-		doc_print(&doc_dev_desc[dev]);
-		/*doc_print (dev);*/
-
-		if (doc_dev_desc[dev].ChipID == DOC_ChipID_UNKNOWN) {
-			return 1;
-		}
-
-		curr_device = dev;
-
-		puts ("... is now current device\n");
-
-		return 0;
-	}
-
-	cmd_usage(cmdtp);
-	return 1;
-    default:
-	/* at least 4 args */
-
-	if (strcmp(argv[1],"read") == 0 || strcmp(argv[1],"write") == 0) {
-		ulong addr = simple_strtoul(argv[2], NULL, 16);
-		ulong off  = simple_strtoul(argv[3], NULL, 16);
-		ulong size = simple_strtoul(argv[4], NULL, 16);
-		int cmd    = (strcmp(argv[1],"read") == 0);
-		int ret, total;
-
-		printf ("\nDOC %s: device %d offset %ld, size %ld ... ",
-			cmd ? "read" : "write", curr_device, off, size);
-
-		ret = doc_rw(doc_dev_desc + curr_device, cmd, off, size,
-			     (size_t *)&total, (u_char*)addr);
-
-		printf ("%d bytes %s: %s\n", total, cmd ? "read" : "write",
-			ret ? "ERROR" : "OK");
-
-		return ret;
-	} else if (strcmp(argv[1],"erase") == 0) {
-		ulong off = simple_strtoul(argv[2], NULL, 16);
-		ulong size = simple_strtoul(argv[3], NULL, 16);
-		int ret;
-
-		printf ("\nDOC erase: device %d offset %ld, size %ld ... ",
-			curr_device, off, size);
-
-		ret = doc_erase (doc_dev_desc + curr_device, off, size);
-
-		printf("%s\n", ret ? "ERROR" : "OK");
-
-		return ret;
-	} else {
-		cmd_usage(cmdtp);
-		rcode = 1;
-	}
-
-	return rcode;
-    }
-}
-U_BOOT_CMD(
-	doc,	5,	1,	do_doc,
-	"Disk-On-Chip sub-system",
-	"info  - show available DOC devices\n"
-	"doc device [dev] - show or set current device\n"
-	"doc read  addr off size\n"
-	"doc write addr off size - read/write `size'"
-	" bytes starting at offset `off'\n"
-	"    to/from memory address `addr'\n"
-	"doc erase off size - erase `size' bytes of DOC from offset `off'"
-);
-
-int do_docboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-	char *boot_device = NULL;
-	char *ep;
-	int dev;
-	ulong cnt;
-	ulong addr;
-	ulong offset = 0;
-	image_header_t *hdr;
-	int rcode = 0;
-#if defined(CONFIG_FIT)
-	const void *fit_hdr = NULL;
-#endif
-
-	show_boot_progress (34);
-	switch (argc) {
-	case 1:
-		addr = CONFIG_SYS_LOAD_ADDR;
-		boot_device = getenv ("bootdevice");
-		break;
-	case 2:
-		addr = simple_strtoul(argv[1], NULL, 16);
-		boot_device = getenv ("bootdevice");
-		break;
-	case 3:
-		addr = simple_strtoul(argv[1], NULL, 16);
-		boot_device = argv[2];
-		break;
-	case 4:
-		addr = simple_strtoul(argv[1], NULL, 16);
-		boot_device = argv[2];
-		offset = simple_strtoul(argv[3], NULL, 16);
-		break;
-	default:
-		cmd_usage(cmdtp);
-		show_boot_progress (-35);
-		return 1;
-	}
-
-	show_boot_progress (35);
-	if (!boot_device) {
-		puts ("\n** No boot device **\n");
-		show_boot_progress (-36);
-		return 1;
-	}
-	show_boot_progress (36);
-
-	dev = simple_strtoul(boot_device, &ep, 16);
-
-	if ((dev >= CONFIG_SYS_MAX_DOC_DEVICE) ||
-	    (doc_dev_desc[dev].ChipID == DOC_ChipID_UNKNOWN)) {
-		printf ("\n** Device %d not available\n", dev);
-		show_boot_progress (-37);
-		return 1;
-	}
-	show_boot_progress (37);
-
-	printf ("\nLoading from device %d: %s at 0x%lX (offset 0x%lX)\n",
-		dev, doc_dev_desc[dev].name, doc_dev_desc[dev].physadr,
-		offset);
-
-	if (doc_rw (doc_dev_desc + dev, 1, offset,
-		    SECTORSIZE, NULL, (u_char *)addr)) {
-		printf ("** Read error on %d\n", dev);
-		show_boot_progress (-38);
-		return 1;
-	}
-	show_boot_progress (38);
-
-	switch (genimg_get_format ((void *)addr)) {
-	case IMAGE_FORMAT_LEGACY:
-		hdr = (image_header_t *)addr;
-
-		image_print_contents (hdr);
-
-		cnt = image_get_image_size (hdr);
-		break;
-#if defined(CONFIG_FIT)
-	case IMAGE_FORMAT_FIT:
-		fit_hdr = (const void *)addr;
-		puts ("Fit image detected...\n");
-
-		cnt = fit_get_size (fit_hdr);
-		break;
-#endif
-	default:
-		show_boot_progress (-39);
-		puts ("** Unknown image type\n");
-		return 1;
-	}
-	show_boot_progress (39);
-
-	cnt -= SECTORSIZE;
-	if (doc_rw (doc_dev_desc + dev, 1, offset + SECTORSIZE, cnt,
-		    NULL, (u_char *)(addr+SECTORSIZE))) {
-		printf ("** Read error on %d\n", dev);
-		show_boot_progress (-40);
-		return 1;
-	}
-	show_boot_progress (40);
-
-#if defined(CONFIG_FIT)
-	/* This cannot be done earlier, we need complete FIT image in RAM first */
-	if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
-		if (!fit_check_format (fit_hdr)) {
-			show_boot_progress (-130);
-			puts ("** Bad FIT image format\n");
-			return 1;
-		}
-		show_boot_progress (131);
-		fit_print_contents (fit_hdr);
-	}
-#endif
-
-	/* Loading ok, update default load address */
-
-	load_addr = addr;
-
-	/* Check if we should attempt an auto-start */
-	if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
-		char *local_args[2];
-		extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
-
-		local_args[0] = argv[0];
-		local_args[1] = NULL;
-
-		printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
-
-		do_bootm (cmdtp, 0, 1, local_args);
-		rcode = 1;
-	}
-	return rcode;
-}
-
-U_BOOT_CMD(
-	docboot,	4,	1,	do_docboot,
-	"boot from DOC device",
-	"loadAddr dev"
-);
-
-int doc_rw (struct DiskOnChip* this, int cmd,
-	    loff_t from, size_t len,
-	    size_t * retlen, u_char * buf)
-{
-	int noecc, ret = 0, n, total = 0;
-	char eccbuf[6];
-
-	while(len) {
-		/* The ECC will not be calculated correctly if
-		   less than 512 is written or read */
-		noecc = (from != (from | 0x1ff) + 1) ||	(len < 0x200);
-
-		if (cmd)
-			ret = doc_read_ecc(this, from, len,
-					   (size_t *)&n, (u_char*)buf,
-					   noecc ? (uchar *)NULL : (uchar *)eccbuf);
-		else
-			ret = doc_write_ecc(this, from, len,
-					    (size_t *)&n, (u_char*)buf,
-					    noecc ? (uchar *)NULL : (uchar *)eccbuf);
-
-		if (ret)
-			break;
-
-		from  += n;
-		buf   += n;
-		total += n;
-		len   -= n;
-	}
-
-	if (retlen)
-		*retlen = total;
-
-	return ret;
-}
-
-void doc_print(struct DiskOnChip *this) {
-	printf("%s at 0x%lX,\n"
-	       "\t  %d chip%s %s, size %d MB, \n"
-	       "\t  total size %ld MB, sector size %ld kB\n",
-	       this->name, this->physadr, this->numchips,
-	       this->numchips>1 ? "s" : "", this->chips_name,
-	       1 << (this->chipshift - 20),
-	       this->totlen >> 20, this->erasesize >> 10);
-
-	if (this->nftl_found) {
-		struct NFTLrecord *nftl = &this->nftl;
-		unsigned long bin_size, flash_size;
-
-		bin_size = nftl->nb_boot_blocks * this->erasesize;
-		flash_size = (nftl->nb_blocks - nftl->nb_boot_blocks) * this->erasesize;
-
-		printf("\t  NFTL boot record:\n"
-		       "\t    Binary partition: size %ld%s\n"
-		       "\t    Flash disk partition: size %ld%s, offset 0x%lx\n",
-		       bin_size > (1 << 20) ? bin_size >> 20 : bin_size >> 10,
-		       bin_size > (1 << 20) ? "MB" : "kB",
-		       flash_size > (1 << 20) ? flash_size >> 20 : flash_size >> 10,
-		       flash_size > (1 << 20) ? "MB" : "kB", bin_size);
-	} else {
-		puts ("\t  No NFTL boot record found.\n");
-	}
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* This function is needed to avoid calls of the __ashrdi3 function. */
-static int shr(int val, int shift) {
-	return val >> shift;
-}
-
-/* Perform the required delay cycles by reading from the appropriate register */
-static void DoC_Delay(struct DiskOnChip *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
-			dummy = ReadDOC(doc->virtadr, DOCStatus);
-	}
-
-}
-
-/* DOC_WaitReady: Wait for RDY line to be asserted by the flash chip */
-static int _DoC_WaitReady(struct DiskOnChip *doc)
-{
-	unsigned long docptr = doc->virtadr;
-	unsigned long start = get_timer(0);
-
-#ifdef PSYCHO_DEBUG
-	puts ("_DoC_WaitReady called for out-of-line wait\n");
-#endif
-
-	/* Out-of-line routine to wait for chip response */
-	while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
-#ifdef CONFIG_SYS_DOC_SHORT_TIMEOUT
-		/* it seems that after a certain time the DoC deasserts
-		 * the CDSN_CTRL_FR_B although it is not ready...
-		 * using a short timout solve this (timer increments every ms) */
-		if (get_timer(start) > 10) {
-			return DOC_ETIMEOUT;
-		}
-#else
-		if (get_timer(start) > 10 * 1000) {
-			puts ("_DoC_WaitReady timed out.\n");
-			return DOC_ETIMEOUT;
-		}
-#endif
-		udelay(1);
-	}
-
-	return 0;
-}
-
-static int DoC_WaitReady(struct DiskOnChip *doc)
-{
-	unsigned long docptr = doc->virtadr;
-	/* This is inline, to optimise the common case, where it's ready instantly */
-	int ret = 0;
-
-	/* 4 read form NOP register should be issued in prior to the read from CDSNControl
-	   see Software Requirement 11.4 item 2. */
-	DoC_Delay(doc, 4);
-
-	if (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B))
-		/* Call the out-of-line routine to wait */
-		ret = _DoC_WaitReady(doc);
-
-	/* issue 2 read from NOP register after reading from CDSNControl register
-	   see Software Requirement 11.4 item 2. */
-	DoC_Delay(doc, 2);
-
-	return ret;
-}
-
-/* DoC_Command: Send a flash command to the flash chip through the CDSN Slow IO register to
-   bypass the internal pipeline. Each of 4 delay cycles (read from the NOP register) is
-   required after writing to CDSN Control register, see Software Requirement 11.4 item 3. */
-
-static inline int DoC_Command(struct DiskOnChip *doc, unsigned char command,
-			      unsigned char xtraflags)
-{
-	unsigned long docptr = doc->virtadr;
-
-	if (DoC_is_2000(doc))
-		xtraflags |= CDSN_CTRL_FLASH_IO;
-
-	/* Assert the CLE (Command Latch Enable) line to the flash chip */
-	WriteDOC(xtraflags | CDSN_CTRL_CLE | CDSN_CTRL_CE, docptr, CDSNControl);
-	DoC_Delay(doc, 4);	/* Software requirement 11.4.3 for Millennium */
-
-	if (DoC_is_Millennium(doc))
-		WriteDOC(command, docptr, CDSNSlowIO);
-
-	/* Send the command */
-	WriteDOC_(command, docptr, doc->ioreg);
-
-	/* Lower the CLE line */
-	WriteDOC(xtraflags | CDSN_CTRL_CE, docptr, CDSNControl);
-	DoC_Delay(doc, 4);	/* Software requirement 11.4.3 for Millennium */
-
-	/* Wait for the chip to respond - Software requirement 11.4.1 (extended for any command) */
-	return DoC_WaitReady(doc);
-}
-
-/* DoC_Address: Set the current address for the flash chip through the CDSN Slow IO register to
-   bypass the internal pipeline. Each of 4 delay cycles (read from the NOP register) is
-   required after writing to CDSN Control register, see Software Requirement 11.4 item 3. */
-
-static int DoC_Address(struct DiskOnChip *doc, int numbytes, unsigned long ofs,
-		       unsigned char xtraflags1, unsigned char xtraflags2)
-{
-	unsigned long docptr;
-	int i;
-
-	docptr = doc->virtadr;
-
-	if (DoC_is_2000(doc))
-		xtraflags1 |= CDSN_CTRL_FLASH_IO;
-
-	/* Assert the ALE (Address Latch Enable) line to the flash chip */
-	WriteDOC(xtraflags1 | CDSN_CTRL_ALE | CDSN_CTRL_CE, docptr, CDSNControl);
-
-	DoC_Delay(doc, 4);	/* Software requirement 11.4.3 for Millennium */
-
-	/* Send the address */
-	/* Devices with 256-byte page are addressed as:
-	   Column (bits 0-7), Page (bits 8-15, 16-23, 24-31)
-	   * there is no device on the market with page256
-	   and more than 24 bits.
-	   Devices with 512-byte page are addressed as:
-	   Column (bits 0-7), Page (bits 9-16, 17-24, 25-31)
-	   * 25-31 is sent only if the chip support it.
-	   * bit 8 changes the read command to be sent
-	   (NAND_CMD_READ0 or NAND_CMD_READ1).
-	 */
-
-	if (numbytes == ADDR_COLUMN || numbytes == ADDR_COLUMN_PAGE) {
-		if (DoC_is_Millennium(doc))
-			WriteDOC(ofs & 0xff, docptr, CDSNSlowIO);
-		WriteDOC_(ofs & 0xff, docptr, doc->ioreg);
-	}
-
-	if (doc->page256) {
-		ofs = ofs >> 8;
-	} else {
-		ofs = ofs >> 9;
-	}
-
-	if (numbytes == ADDR_PAGE || numbytes == ADDR_COLUMN_PAGE) {
-		for (i = 0; i < doc->pageadrlen; i++, ofs = ofs >> 8) {
-			if (DoC_is_Millennium(doc))
-				WriteDOC(ofs & 0xff, docptr, CDSNSlowIO);
-			WriteDOC_(ofs & 0xff, docptr, doc->ioreg);
-		}
-	}
-
-	DoC_Delay(doc, 2);	/* Needed for some slow flash chips. mf. */
-
-	/* FIXME: The SlowIO's for millennium could be replaced by
-	   a single WritePipeTerm here. mf. */
-
-	/* Lower the ALE line */
-	WriteDOC(xtraflags1 | xtraflags2 | CDSN_CTRL_CE, docptr,
-		 CDSNControl);
-
-	DoC_Delay(doc, 4);	/* Software requirement 11.4.3 for Millennium */
-
-	/* Wait for the chip to respond - Software requirement 11.4.1 */
-	return DoC_WaitReady(doc);
-}
-
-/* Read a buffer from DoC, taking care of Millennium oddities */
-static void DoC_ReadBuf(struct DiskOnChip *doc, u_char * buf, int len)
-{
-	volatile int dummy;
-	int modulus = 0xffff;
-	unsigned long docptr;
-	int i;
-
-	docptr = doc->virtadr;
-
-	if (len <= 0)
-		return;
-
-	if (DoC_is_Millennium(doc)) {
-		/* Read the data via the internal pipeline through CDSN IO register,
-		   see Pipelined Read Operations 11.3 */
-		dummy = ReadDOC(docptr, ReadPipeInit);
-
-		/* Millennium should use the LastDataRead register - Pipeline Reads */
-		len--;
-
-		/* This is needed for correctly ECC calculation */
-		modulus = 0xff;
-	}
-
-	for (i = 0; i < len; i++)
-		buf[i] = ReadDOC_(docptr, doc->ioreg + (i & modulus));
-
-	if (DoC_is_Millennium(doc)) {
-		buf[i] = ReadDOC(docptr, LastDataRead);
-	}
-}
-
-/* Write a buffer to DoC, taking care of Millennium oddities */
-static void DoC_WriteBuf(struct DiskOnChip *doc, const u_char * buf, int len)
-{
-	unsigned long docptr;
-	int i;
-
-	docptr = doc->virtadr;
-
-	if (len <= 0)
-		return;
-
-	for (i = 0; i < len; i++)
-		WriteDOC_(buf[i], docptr, doc->ioreg + i);
-
-	if (DoC_is_Millennium(doc)) {
-		WriteDOC(0x00, docptr, WritePipeTerm);
-	}
-}
-
-
-/* DoC_SelectChip: Select a given flash chip within the current floor */
-
-static inline int DoC_SelectChip(struct DiskOnChip *doc, int chip)
-{
-	unsigned long docptr = doc->virtadr;
-
-	/* Software requirement 11.4.4 before writing DeviceSelect */
-	/* Deassert the CE line to eliminate glitches on the FCE# outputs */
-	WriteDOC(CDSN_CTRL_WP, docptr, CDSNControl);
-	DoC_Delay(doc, 4);	/* Software requirement 11.4.3 for Millennium */
-
-	/* Select the individual flash chip requested */
-	WriteDOC(chip, docptr, CDSNDeviceSelect);
-	DoC_Delay(doc, 4);
-
-	/* Reassert the CE line */
-	WriteDOC(CDSN_CTRL_CE | CDSN_CTRL_FLASH_IO | CDSN_CTRL_WP, docptr,
-		 CDSNControl);
-	DoC_Delay(doc, 4);	/* Software requirement 11.4.3 for Millennium */
-
-	/* Wait for it to be ready */
-	return DoC_WaitReady(doc);
-}
-
-/* DoC_SelectFloor: Select a given floor (bank of flash chips) */
-
-static inline int DoC_SelectFloor(struct DiskOnChip *doc, int floor)
-{
-	unsigned long docptr = doc->virtadr;
-
-	/* Select the floor (bank) of chips required */
-	WriteDOC(floor, docptr, FloorSelect);
-
-	/* Wait for the chip to be ready */
-	return DoC_WaitReady(doc);
-}
-
-/* DoC_IdentChip: Identify a given NAND chip given {floor,chip} */
-
-static int DoC_IdentChip(struct DiskOnChip *doc, int floor, int chip)
-{
-	int mfr, id, i;
-	volatile char dummy;
-
-	/* Page in the required floor/chip */
-	DoC_SelectFloor(doc, floor);
-	DoC_SelectChip(doc, chip);
-
-	/* Reset the chip */
-	if (DoC_Command(doc, NAND_CMD_RESET, CDSN_CTRL_WP)) {
-#ifdef DOC_DEBUG
-		printf("DoC_Command (reset) for %d,%d returned true\n",
-		       floor, chip);
-#endif
-		return 0;
-	}
-
-
-	/* Read the NAND chip ID: 1. Send ReadID command */
-	if (DoC_Command(doc, NAND_CMD_READID, CDSN_CTRL_WP)) {
-#ifdef DOC_DEBUG
-		printf("DoC_Command (ReadID) for %d,%d returned true\n",
-		       floor, chip);
-#endif
-		return 0;
-	}
-
-	/* Read the NAND chip ID: 2. Send address byte zero */
-	DoC_Address(doc, ADDR_COLUMN, 0, CDSN_CTRL_WP, 0);
-
-	/* Read the manufacturer and device id codes from the device */
-
-	/* CDSN Slow IO register see Software Requirement 11.4 item 5. */
-	dummy = ReadDOC(doc->virtadr, CDSNSlowIO);
-	DoC_Delay(doc, 2);
-	mfr = ReadDOC_(doc->virtadr, doc->ioreg);
-
-	/* CDSN Slow IO register see Software Requirement 11.4 item 5. */
-	dummy = ReadDOC(doc->virtadr, CDSNSlowIO);
-	DoC_Delay(doc, 2);
-	id = ReadDOC_(doc->virtadr, doc->ioreg);
-
-	/* No response - return failure */
-	if (mfr == 0xff || mfr == 0)
-		return 0;
-
-	/* Check it's the same as the first chip we identified.
-	 * M-Systems say that any given DiskOnChip device should only
-	 * contain _one_ type of flash part, although that's not a
-	 * hardware restriction. */
-	if (doc->mfr) {
-		if (doc->mfr == mfr && doc->id == id)
-			return 1;	/* This is another the same the first */
-		else
-			printf("Flash chip at floor %d, chip %d is different:\n",
-			       floor, chip);
-	}
-
-	/* Print and store the manufacturer and ID codes. */
-	for (i = 0; nand_flash_ids[i].name != NULL; i++) {
-		if (mfr == nand_flash_ids[i].manufacture_id &&
-		    id == nand_flash_ids[i].model_id) {
-#ifdef DOC_DEBUG
-			printf("Flash chip found: Manufacturer ID: %2.2X, "
-			       "Chip ID: %2.2X (%s)\n", mfr, id,
-			       nand_flash_ids[i].name);
-#endif
-			if (!doc->mfr) {
-				doc->mfr = mfr;
-				doc->id = id;
-				doc->chipshift =
-				    nand_flash_ids[i].chipshift;
-				doc->page256 = nand_flash_ids[i].page256;
-				doc->pageadrlen =
-				    nand_flash_ids[i].pageadrlen;
-				doc->erasesize =
-				    nand_flash_ids[i].erasesize;
-				doc->chips_name =
-				    nand_flash_ids[i].name;
-				return 1;
-			}
-			return 0;
-		}
-	}
-
-
-#ifdef DOC_DEBUG
-	/* We haven't fully identified the chip. Print as much as we know. */
-	printf("Unknown flash chip found: %2.2X %2.2X\n",
-	       id, mfr);
-#endif
-
-	return 0;
-}
-
-/* DoC_ScanChips: Find all NAND chips present in a DiskOnChip, and identify them */
-
-static void DoC_ScanChips(struct DiskOnChip *this)
-{
-	int floor, chip;
-	int numchips[MAX_FLOORS];
-	int maxchips = MAX_CHIPS;
-	int ret = 1;
-
-	this->numchips = 0;
-	this->mfr = 0;
-	this->id = 0;
-
-	if (DoC_is_Millennium(this))
-		maxchips = MAX_CHIPS_MIL;
-
-	/* For each floor, find the number of valid chips it contains */
-	for (floor = 0; floor < MAX_FLOORS; floor++) {
-		ret = 1;
-		numchips[floor] = 0;
-		for (chip = 0; chip < maxchips && ret != 0; chip++) {
-
-			ret = DoC_IdentChip(this, floor, chip);
-			if (ret) {
-				numchips[floor]++;
-				this->numchips++;
-			}
-		}
-	}
-
-	/* If there are none at all that we recognise, bail */
-	if (!this->numchips) {
-		puts ("No flash chips recognised.\n");
-		return;
-	}
-
-	/* Allocate an array to hold the information for each chip */
-	this->chips = malloc(sizeof(struct Nand) * this->numchips);
-	if (!this->chips) {
-		puts ("No memory for allocating chip info structures\n");
-		return;
-	}
-
-	ret = 0;
-
-	/* Fill out the chip array with {floor, chipno} for each
-	 * detected chip in the device. */
-	for (floor = 0; floor < MAX_FLOORS; floor++) {
-		for (chip = 0; chip < numchips[floor]; chip++) {
-			this->chips[ret].floor = floor;
-			this->chips[ret].chip = chip;
-			this->chips[ret].curadr = 0;
-			this->chips[ret].curmode = 0x50;
-			ret++;
-		}
-	}
-
-	/* Calculate and print the total size of the device */
-	this->totlen = this->numchips * (1 << this->chipshift);
-
-#ifdef DOC_DEBUG
-	printf("%d flash chips found. Total DiskOnChip size: %ld MB\n",
-	       this->numchips, this->totlen >> 20);
-#endif
-}
-
-/* find_boot_record: Find the NFTL Media Header and its Spare copy which contains the
- *	various device information of the NFTL partition and Bad Unit Table. Update
- *	the ReplUnitTable[] table accroding to the Bad Unit Table. ReplUnitTable[]
- *	is used for management of Erase Unit in other routines in nftl.c and nftlmount.c
- */
-static int find_boot_record(struct NFTLrecord *nftl)
-{
-	struct nftl_uci1 h1;
-	struct nftl_oob oob;
-	unsigned int block, boot_record_count = 0;
-	int retlen;
-	u8 buf[SECTORSIZE];
-	struct NFTLMediaHeader *mh = &nftl->MediaHdr;
-	unsigned int i;
-
-	nftl->MediaUnit = BLOCK_NIL;
-	nftl->SpareMediaUnit = BLOCK_NIL;
-
-	/* search for a valid boot record */
-	for (block = 0; block < nftl->nb_blocks; block++) {
-		int ret;
-
-		/* Check for ANAND header first. Then can whinge if it's found but later
-		   checks fail */
-		if ((ret = doc_read_ecc(nftl->mtd, block * nftl->EraseSize, SECTORSIZE,
-					(size_t *)&retlen, buf, NULL))) {
-			static int warncount = 5;
-
-			if (warncount) {
-				printf("Block read at 0x%x failed\n", block * nftl->EraseSize);
-				if (!--warncount)
-					puts ("Further failures for this block will not be printed\n");
-			}
-			continue;
-		}
-
-		if (retlen < 6 || memcmp(buf, "ANAND", 6)) {
-			/* ANAND\0 not found. Continue */
-#ifdef PSYCHO_DEBUG
-			printf("ANAND header not found at 0x%x\n", block * nftl->EraseSize);
-#endif
-			continue;
-		}
-
-#ifdef NFTL_DEBUG
-		printf("ANAND header found at 0x%x\n", block * nftl->EraseSize);
-#endif
-
-		/* To be safer with BIOS, also use erase mark as discriminant */
-		if ((ret = doc_read_oob(nftl->mtd, block * nftl->EraseSize + SECTORSIZE + 8,
-				8, (size_t *)&retlen, (uchar *)&h1) < 0)) {
-#ifdef NFTL_DEBUG
-			printf("ANAND header found at 0x%x, but OOB data read failed\n",
-			       block * nftl->EraseSize);
-#endif
-			continue;
-		}
-
-		/* OK, we like it. */
-
-		if (boot_record_count) {
-			/* We've already processed one. So we just check if
-			   this one is the same as the first one we found */
-			if (memcmp(mh, buf, sizeof(struct NFTLMediaHeader))) {
-#ifdef NFTL_DEBUG
-				printf("NFTL Media Headers at 0x%x and 0x%x disagree.\n",
-				       nftl->MediaUnit * nftl->EraseSize, block * nftl->EraseSize);
-#endif
-				/* if (debug) Print both side by side */
-				return -1;
-			}
-			if (boot_record_count == 1)
-				nftl->SpareMediaUnit = block;
-
-			boot_record_count++;
-			continue;
-		}
-
-		/* This is the first we've seen. Copy the media header structure into place */
-		memcpy(mh, buf, sizeof(struct NFTLMediaHeader));
-
-		/* Do some sanity checks on it */
-		if (mh->UnitSizeFactor == 0) {
-#ifdef NFTL_DEBUG
-			puts ("UnitSizeFactor 0x00 detected.\n"
-			      "This violates the spec but we think we know what it means...\n");
-#endif
-		} else if (mh->UnitSizeFactor != 0xff) {
-			printf ("Sorry, we don't support UnitSizeFactor "
-			      "of != 1 yet.\n");
-			return -1;
-		}
-
-		nftl->nb_boot_blocks = le16_to_cpu(mh->FirstPhysicalEUN);
-		if ((nftl->nb_boot_blocks + 2) >= nftl->nb_blocks) {
-			printf ("NFTL Media Header sanity check failed:\n"
-				"nb_boot_blocks (%d) + 2 > nb_blocks (%d)\n",
-				nftl->nb_boot_blocks, nftl->nb_blocks);
-			return -1;
-		}
-
-		nftl->numvunits = le32_to_cpu(mh->FormattedSize) / nftl->EraseSize;
-		if (nftl->numvunits > (nftl->nb_blocks - nftl->nb_boot_blocks - 2)) {
-			printf ("NFTL Media Header sanity check failed:\n"
-				"numvunits (%d) > nb_blocks (%d) - nb_boot_blocks(%d) - 2\n",
-				nftl->numvunits,
-				nftl->nb_blocks,
-				nftl->nb_boot_blocks);
-			return -1;
-		}
-
-		nftl->nr_sects  = nftl->numvunits * (nftl->EraseSize / SECTORSIZE);
-
-		/* If we're not using the last sectors in the device for some reason,
-		   reduce nb_blocks accordingly so we forget they're there */
-		nftl->nb_blocks = le16_to_cpu(mh->NumEraseUnits) + le16_to_cpu(mh->FirstPhysicalEUN);
-
-		/* read the Bad Erase Unit Table and modify ReplUnitTable[] accordingly */
-		for (i = 0; i < nftl->nb_blocks; i++) {
-			if ((i & (SECTORSIZE - 1)) == 0) {
-				/* read one sector for every SECTORSIZE of blocks */
-				if ((ret = doc_read_ecc(nftl->mtd, block * nftl->EraseSize +
-						       i + SECTORSIZE, SECTORSIZE,
-						       (size_t *)&retlen, buf, (uchar *)&oob)) < 0) {
-					puts ("Read of bad sector table failed\n");
-					return -1;
-				}
-			}
-			/* mark the Bad Erase Unit as RESERVED in ReplUnitTable */
-			if (buf[i & (SECTORSIZE - 1)] != 0xff)
-				nftl->ReplUnitTable[i] = BLOCK_RESERVED;
-		}
-
-		nftl->MediaUnit = block;
-		boot_record_count++;
-
-	} /* foreach (block) */
-
-	return boot_record_count?0:-1;
-}
-
-/* This routine is made available to other mtd code via
- * inter_module_register.  It must only be accessed through
- * inter_module_get which will bump the use count of this module.  The
- * addresses passed back in mtd are valid as long as the use count of
- * this module is non-zero, i.e. between inter_module_get and
- * inter_module_put.  Keith Owens <kaos@ocs.com.au> 29 Oct 2000.
- */
-static void DoC2k_init(struct DiskOnChip* this)
-{
-	struct NFTLrecord *nftl;
-
-	switch (this->ChipID) {
-	case DOC_ChipID_Doc2k:
-		this->name = "DiskOnChip 2000";
-		this->ioreg = DoC_2k_CDSN_IO;
-		break;
-	case DOC_ChipID_DocMil:
-		this->name = "DiskOnChip Millennium";
-		this->ioreg = DoC_Mil_CDSN_IO;
-		break;
-	}
-
-#ifdef DOC_DEBUG
-	printf("%s found at address 0x%lX\n", this->name,
-	       this->physadr);
-#endif
-
-	this->totlen = 0;
-	this->numchips = 0;
-
-	this->curfloor = -1;
-	this->curchip = -1;
-
-	/* Ident all the chips present. */
-	DoC_ScanChips(this);
-	if ((!this->numchips) || (!this->chips))
-		return;
-
-	nftl = &this->nftl;
-
-	/* Get physical parameters */
-	nftl->EraseSize = this->erasesize;
-	nftl->nb_blocks = this->totlen / this->erasesize;
-	nftl->mtd = this;
-
-	if (find_boot_record(nftl) != 0)
-		this->nftl_found = 0;
-	else
-		this->nftl_found = 1;
-
-	printf("%s @ 0x%lX, %ld MB\n", this->name, this->physadr, this->totlen >> 20);
-}
-
-int doc_read_ecc(struct DiskOnChip* this, loff_t from, size_t len,
-		 size_t * retlen, u_char * buf, u_char * eccbuf)
-{
-	unsigned long docptr;
-	struct Nand *mychip;
-	unsigned char syndrome[6];
-	volatile char dummy;
-	int i, len256 = 0, ret=0;
-
-	docptr = this->virtadr;
-
-	/* Don't allow read past end of device */
-	if (from >= this->totlen) {
-		puts ("Out of flash\n");
-		return DOC_EINVAL;
-	}
-
-	/* Don't allow a single read to cross a 512-byte block boundary */
-	if (from + len > ((from | 0x1ff) + 1))
-		len = ((from | 0x1ff) + 1) - from;
-
-	/* The ECC will not be calculated correctly if less than 512 is read */
-	if (len != 0x200 && eccbuf)
-		printf("ECC needs a full sector read (adr: %lx size %lx)\n",
-		       (long) from, (long) len);
-
-#ifdef PSYCHO_DEBUG
-	printf("DoC_Read (adr: %lx size %lx)\n", (long) from, (long) len);
-#endif
-
-	/* Find the chip which is to be used and select it */
-	mychip = &this->chips[shr(from, this->chipshift)];
-
-	if (this->curfloor != mychip->floor) {
-		DoC_SelectFloor(this, mychip->floor);
-		DoC_SelectChip(this, mychip->chip);
-	} else if (this->curchip != mychip->chip) {
-		DoC_SelectChip(this, mychip->chip);
-	}
-
-	this->curfloor = mychip->floor;
-	this->curchip = mychip->chip;
-
-	DoC_Command(this,
-		    (!this->page256
-		     && (from & 0x100)) ? NAND_CMD_READ1 : NAND_CMD_READ0,
-		    CDSN_CTRL_WP);
-	DoC_Address(this, ADDR_COLUMN_PAGE, from, CDSN_CTRL_WP,
-		    CDSN_CTRL_ECC_IO);
-
-	if (eccbuf) {
-		/* Prime the ECC engine */
-		WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
-		WriteDOC(DOC_ECC_EN, docptr, ECCConf);
-	} else {
-		/* disable the ECC engine */
-		WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
-		WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
-	}
-
-	/* treat crossing 256-byte sector for 2M x 8bits devices */
-	if (this->page256 && from + len > (from | 0xff) + 1) {
-		len256 = (from | 0xff) + 1 - from;
-		DoC_ReadBuf(this, buf, len256);
-
-		DoC_Command(this, NAND_CMD_READ0, CDSN_CTRL_WP);
-		DoC_Address(this, ADDR_COLUMN_PAGE, from + len256,
-			    CDSN_CTRL_WP, CDSN_CTRL_ECC_IO);
-	}
-
-	DoC_ReadBuf(this, &buf[len256], len - len256);
-
-	/* Let the caller know we completed it */
-	*retlen = len;
-
-	if (eccbuf) {
-		/* Read the ECC data through the DiskOnChip ECC logic */
-		/* Note: this will work even with 2M x 8bit devices as   */
-		/*       they have 8 bytes of OOB per 256 page. mf.      */
-		DoC_ReadBuf(this, eccbuf, 6);
-
-		/* Flush the pipeline */
-		if (DoC_is_Millennium(this)) {
-			dummy = ReadDOC(docptr, ECCConf);
-			dummy = ReadDOC(docptr, ECCConf);
-			i = ReadDOC(docptr, ECCConf);
-		} else {
-			dummy = ReadDOC(docptr, 2k_ECCStatus);
-			dummy = ReadDOC(docptr, 2k_ECCStatus);
-			i = ReadDOC(docptr, 2k_ECCStatus);
-		}
-
-		/* Check the ECC Status */
-		if (i & 0x80) {
-			int nb_errors;
-			/* There was an ECC error */
-#ifdef ECC_DEBUG
-			printf("DiskOnChip ECC Error: Read at %lx\n", (long)from);
-#endif
-			/* Read the ECC syndrom through the DiskOnChip ECC logic.
-			   These syndrome will be all ZERO when there is no error */
-			for (i = 0; i < 6; i++) {
-				syndrome[i] =
-				    ReadDOC(docptr, ECCSyndrome0 + i);
-			}
-			nb_errors = doc_decode_ecc(buf, syndrome);
-
-#ifdef ECC_DEBUG
-			printf("Errors corrected: %x\n", nb_errors);
-#endif
-			if (nb_errors < 0) {
-				/* We return error, but have actually done the read. Not that
-				   this can be told to user-space, via sys_read(), but at least
-				   MTD-aware stuff can know about it by checking *retlen */
-				printf("ECC Errors at %lx\n", (long)from);
-				ret = DOC_EECC;
-			}
-		}
-
-#ifdef PSYCHO_DEBUG
-		printf("ECC DATA at %lxB: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n",
-			     (long)from, eccbuf[0], eccbuf[1], eccbuf[2],
-			     eccbuf[3], eccbuf[4], eccbuf[5]);
-#endif
-
-		/* disable the ECC engine */
-		WriteDOC(DOC_ECC_DIS, docptr , ECCConf);
-	}
-
-	/* according to 11.4.1, we need to wait for the busy line
-	 * drop if we read to the end of the page.  */
-	if(0 == ((from + *retlen) & 0x1ff))
-	{
-	    DoC_WaitReady(this);
-	}
-
-	return ret;
-}
-
-int doc_write_ecc(struct DiskOnChip* this, loff_t to, size_t len,
-		  size_t * retlen, const u_char * buf,
-		  u_char * eccbuf)
-{
-	int di; /* Yes, DI is a hangover from when I was disassembling the binary driver */
-	unsigned long docptr;
-	volatile char dummy;
-	int len256 = 0;
-	struct Nand *mychip;
-
-	docptr = this->virtadr;
-
-	/* Don't allow write past end of device */
-	if (to >= this->totlen) {
-		puts ("Out of flash\n");
-		return DOC_EINVAL;
-	}
-
-	/* Don't allow a single write to cross a 512-byte block boundary */
-	if (to + len > ((to | 0x1ff) + 1))
-		len = ((to | 0x1ff) + 1) - to;
-
-	/* The ECC will not be calculated correctly if less than 512 is written */
-	if (len != 0x200 && eccbuf)
-		printf("ECC needs a full sector write (adr: %lx size %lx)\n",
-		       (long) to, (long) len);
-
-	/* printf("DoC_Write (adr: %lx size %lx)\n", (long) to, (long) len); */
-
-	/* Find the chip which is to be used and select it */
-	mychip = &this->chips[shr(to, this->chipshift)];
-
-	if (this->curfloor != mychip->floor) {
-		DoC_SelectFloor(this, mychip->floor);
-		DoC_SelectChip(this, mychip->chip);
-	} else if (this->curchip != mychip->chip) {
-		DoC_SelectChip(this, mychip->chip);
-	}
-
-	this->curfloor = mychip->floor;
-	this->curchip = mychip->chip;
-
-	/* Set device to main plane of flash */
-	DoC_Command(this, NAND_CMD_RESET, CDSN_CTRL_WP);
-	DoC_Command(this,
-		    (!this->page256
-		     && (to & 0x100)) ? NAND_CMD_READ1 : NAND_CMD_READ0,
-		    CDSN_CTRL_WP);
-
-	DoC_Command(this, NAND_CMD_SEQIN, 0);
-	DoC_Address(this, ADDR_COLUMN_PAGE, to, 0, CDSN_CTRL_ECC_IO);
-
-	if (eccbuf) {
-		/* Prime the ECC engine */
-		WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
-		WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, ECCConf);
-	} else {
-		/* disable the ECC engine */
-		WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
-		WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
-	}
-
-	/* treat crossing 256-byte sector for 2M x 8bits devices */
-	if (this->page256 && to + len > (to | 0xff) + 1) {
-		len256 = (to | 0xff) + 1 - to;
-		DoC_WriteBuf(this, buf, len256);
-
-		DoC_Command(this, NAND_CMD_PAGEPROG, 0);
-
-		DoC_Command(this, NAND_CMD_STATUS, CDSN_CTRL_WP);
-		/* There's an implicit DoC_WaitReady() in DoC_Command */
-
-		dummy = ReadDOC(docptr, CDSNSlowIO);
-		DoC_Delay(this, 2);
-
-		if (ReadDOC_(docptr, this->ioreg) & 1) {
-			puts ("Error programming flash\n");
-			/* Error in programming */
-			*retlen = 0;
-			return DOC_EIO;
-		}
-
-		DoC_Command(this, NAND_CMD_SEQIN, 0);
-		DoC_Address(this, ADDR_COLUMN_PAGE, to + len256, 0,
-			    CDSN_CTRL_ECC_IO);
-	}
-
-	DoC_WriteBuf(this, &buf[len256], len - len256);
-
-	if (eccbuf) {
-		WriteDOC(CDSN_CTRL_ECC_IO | CDSN_CTRL_CE, docptr,
-			 CDSNControl);
-
-		if (DoC_is_Millennium(this)) {
-			WriteDOC(0, docptr, NOP);
-			WriteDOC(0, docptr, NOP);
-			WriteDOC(0, docptr, NOP);
-		} else {
-			WriteDOC_(0, docptr, this->ioreg);
-			WriteDOC_(0, docptr, this->ioreg);
-			WriteDOC_(0, docptr, this->ioreg);
-		}
-
-		/* Read the ECC data through the DiskOnChip ECC logic */
-		for (di = 0; di < 6; di++) {
-			eccbuf[di] = ReadDOC(docptr, ECCSyndrome0 + di);
-		}
-
-		/* Reset the ECC engine */
-		WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
-
-#ifdef PSYCHO_DEBUG
-		printf
-		    ("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n",
-		     (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3],
-		     eccbuf[4], eccbuf[5]);
-#endif
-	}
-
-	DoC_Command(this, NAND_CMD_PAGEPROG, 0);
-
-	DoC_Command(this, NAND_CMD_STATUS, CDSN_CTRL_WP);
-	/* There's an implicit DoC_WaitReady() in DoC_Command */
-
-	dummy = ReadDOC(docptr, CDSNSlowIO);
-	DoC_Delay(this, 2);
-
-	if (ReadDOC_(docptr, this->ioreg) & 1) {
-		puts ("Error programming flash\n");
-		/* Error in programming */
-		*retlen = 0;
-		return DOC_EIO;
-	}
-
-	/* Let the caller know we completed it */
-	*retlen = len;
-
-	if (eccbuf) {
-		unsigned char x[8];
-		size_t dummy;
-		int ret;
-
-		/* Write the ECC data to flash */
-		for (di=0; di<6; di++)
-			x[di] = eccbuf[di];
-
-		x[6]=0x55;
-		x[7]=0x55;
-
-		ret = doc_write_oob(this, to, 8, &dummy, x);
-		return ret;
-	}
-	return 0;
-}
-
-int doc_read_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
-		 size_t * retlen, u_char * buf)
-{
-	int len256 = 0, ret;
-	unsigned long docptr;
-	struct Nand *mychip;
-
-	docptr = this->virtadr;
-
-	mychip = &this->chips[shr(ofs, this->chipshift)];
-
-	if (this->curfloor != mychip->floor) {
-		DoC_SelectFloor(this, mychip->floor);
-		DoC_SelectChip(this, mychip->chip);
-	} else if (this->curchip != mychip->chip) {
-		DoC_SelectChip(this, mychip->chip);
-	}
-	this->curfloor = mychip->floor;
-	this->curchip = mychip->chip;
-
-	/* update address for 2M x 8bit devices. OOB starts on the second */
-	/* page to maintain compatibility with doc_read_ecc. */
-	if (this->page256) {
-		if (!(ofs & 0x8))
-			ofs += 0x100;
-		else
-			ofs -= 0x8;
-	}
-
-	DoC_Command(this, NAND_CMD_READOOB, CDSN_CTRL_WP);
-	DoC_Address(this, ADDR_COLUMN_PAGE, ofs, CDSN_CTRL_WP, 0);
-
-	/* treat crossing 8-byte OOB data for 2M x 8bit devices */
-	/* Note: datasheet says it should automaticaly wrap to the */
-	/*       next OOB block, but it didn't work here. mf.      */
-	if (this->page256 && ofs + len > (ofs | 0x7) + 1) {
-		len256 = (ofs | 0x7) + 1 - ofs;
-		DoC_ReadBuf(this, buf, len256);
-
-		DoC_Command(this, NAND_CMD_READOOB, CDSN_CTRL_WP);
-		DoC_Address(this, ADDR_COLUMN_PAGE, ofs & (~0x1ff),
-			    CDSN_CTRL_WP, 0);
-	}
-
-	DoC_ReadBuf(this, &buf[len256], len - len256);
-
-	*retlen = len;
-	/* Reading the full OOB data drops us off of the end of the page,
-	 * causing the flash device to go into busy mode, so we need
-	 * to wait until ready 11.4.1 and Toshiba TC58256FT docs */
-
-	ret = DoC_WaitReady(this);
-
-	return ret;
-
-}
-
-int doc_write_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
-		  size_t * retlen, const u_char * buf)
-{
-	int len256 = 0;
-	unsigned long docptr = this->virtadr;
-	struct Nand *mychip = &this->chips[shr(ofs, this->chipshift)];
-	volatile int dummy;
-
-#ifdef PSYCHO_DEBUG
-	printf("doc_write_oob(%lx, %d): %2.2X %2.2X %2.2X %2.2X ... %2.2X %2.2X .. %2.2X %2.2X\n",
-	       (long)ofs, len, buf[0], buf[1], buf[2], buf[3],
-	       buf[8], buf[9], buf[14],buf[15]);
-#endif
-
-	/* Find the chip which is to be used and select it */
-	if (this->curfloor != mychip->floor) {
-		DoC_SelectFloor(this, mychip->floor);
-		DoC_SelectChip(this, mychip->chip);
-	} else if (this->curchip != mychip->chip) {
-		DoC_SelectChip(this, mychip->chip);
-	}
-	this->curfloor = mychip->floor;
-	this->curchip = mychip->chip;
-
-	/* disable the ECC engine */
-	WriteDOC (DOC_ECC_RESET, docptr, ECCConf);
-	WriteDOC (DOC_ECC_DIS, docptr, ECCConf);
-
-	/* Reset the chip, see Software Requirement 11.4 item 1. */
-	DoC_Command(this, NAND_CMD_RESET, CDSN_CTRL_WP);
-
-	/* issue the Read2 command to set the pointer to the Spare Data Area. */
-	DoC_Command(this, NAND_CMD_READOOB, CDSN_CTRL_WP);
-
-	/* update address for 2M x 8bit devices. OOB starts on the second */
-	/* page to maintain compatibility with doc_read_ecc. */
-	if (this->page256) {
-		if (!(ofs & 0x8))
-			ofs += 0x100;
-		else
-			ofs -= 0x8;
-	}
-
-	/* issue the Serial Data In command to initial the Page Program process */
-	DoC_Command(this, NAND_CMD_SEQIN, 0);
-	DoC_Address(this, ADDR_COLUMN_PAGE, ofs, 0, 0);
-
-	/* treat crossing 8-byte OOB data for 2M x 8bit devices */
-	/* Note: datasheet says it should automaticaly wrap to the */
-	/*       next OOB block, but it didn't work here. mf.      */
-	if (this->page256 && ofs + len > (ofs | 0x7) + 1) {
-		len256 = (ofs | 0x7) + 1 - ofs;
-		DoC_WriteBuf(this, buf, len256);
-
-		DoC_Command(this, NAND_CMD_PAGEPROG, 0);
-		DoC_Command(this, NAND_CMD_STATUS, 0);
-		/* DoC_WaitReady() is implicit in DoC_Command */
-
-		dummy = ReadDOC(docptr, CDSNSlowIO);
-		DoC_Delay(this, 2);
-
-		if (ReadDOC_(docptr, this->ioreg) & 1) {
-			puts ("Error programming oob data\n");
-			/* There was an error */
-			*retlen = 0;
-			return DOC_EIO;
-		}
-		DoC_Command(this, NAND_CMD_SEQIN, 0);
-		DoC_Address(this, ADDR_COLUMN_PAGE, ofs & (~0x1ff), 0, 0);
-	}
-
-	DoC_WriteBuf(this, &buf[len256], len - len256);
-
-	DoC_Command(this, NAND_CMD_PAGEPROG, 0);
-	DoC_Command(this, NAND_CMD_STATUS, 0);
-	/* DoC_WaitReady() is implicit in DoC_Command */
-
-	dummy = ReadDOC(docptr, CDSNSlowIO);
-	DoC_Delay(this, 2);
-
-	if (ReadDOC_(docptr, this->ioreg) & 1) {
-		puts ("Error programming oob data\n");
-		/* There was an error */
-		*retlen = 0;
-		return DOC_EIO;
-	}
-
-	*retlen = len;
-	return 0;
-
-}
-
-int doc_erase(struct DiskOnChip* this, loff_t ofs, size_t len)
-{
-	volatile int dummy;
-	unsigned long docptr;
-	struct Nand *mychip;
-
-	if (ofs & (this->erasesize-1) || len & (this->erasesize-1)) {
-		puts ("Offset and size must be sector aligned\n");
-		return DOC_EINVAL;
-	}
-
-	docptr = this->virtadr;
-
-	/* FIXME: Do this in the background. Use timers or schedule_task() */
-	while(len) {
-		mychip = &this->chips[shr(ofs, this->chipshift)];
-
-		if (this->curfloor != mychip->floor) {
-			DoC_SelectFloor(this, mychip->floor);
-			DoC_SelectChip(this, mychip->chip);
-		} else if (this->curchip != mychip->chip) {
-			DoC_SelectChip(this, mychip->chip);
-		}
-		this->curfloor = mychip->floor;
-		this->curchip = mychip->chip;
-
-		DoC_Command(this, NAND_CMD_ERASE1, 0);
-		DoC_Address(this, ADDR_PAGE, ofs, 0, 0);
-		DoC_Command(this, NAND_CMD_ERASE2, 0);
-
-		DoC_Command(this, NAND_CMD_STATUS, CDSN_CTRL_WP);
-
-		dummy = ReadDOC(docptr, CDSNSlowIO);
-		DoC_Delay(this, 2);
-
-		if (ReadDOC_(docptr, this->ioreg) & 1) {
-			printf("Error erasing at 0x%lx\n", (long)ofs);
-			/* There was an error */
-			goto callback;
-		}
-		ofs += this->erasesize;
-		len -= this->erasesize;
-	}
-
- callback:
-	return 0;
-}
-
-static inline int doccheck(unsigned long potential, unsigned long physadr)
-{
-	unsigned long window=potential;
-	unsigned char tmp, ChipID;
-#ifndef DOC_PASSIVE_PROBE
-	unsigned char tmp2;
-#endif
-
-	/* Routine copied from the Linux DOC driver */
-
-#ifdef CONFIG_SYS_DOCPROBE_55AA
-	/* Check for 0x55 0xAA signature at beginning of window,
-	   this is no longer true once we remove the IPL (for Millennium */
-	if (ReadDOC(window, Sig1) != 0x55 || ReadDOC(window, Sig2) != 0xaa)
-		return 0;
-#endif /* CONFIG_SYS_DOCPROBE_55AA */
-
-#ifndef DOC_PASSIVE_PROBE
-	/* 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.
-	 */
-	tmp2 = ReadDOC(window, DOCControl);
-
-	/* Reset the DiskOnChip ASIC */
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
-		 window, DOCControl);
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
-		 window, DOCControl);
-
-	/* Enable the DiskOnChip ASIC */
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
-		 window, DOCControl);
-	WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
-		 window, DOCControl);
-#endif /* !DOC_PASSIVE_PROBE */
-
-	ChipID = ReadDOC(window, ChipID);
-
-	switch (ChipID) {
-	case DOC_ChipID_Doc2k:
-		/* Check the TOGGLE bit in the ECC register */
-		tmp = ReadDOC(window, 2k_ECCStatus) & DOC_TOGGLE_BIT;
-		if ((ReadDOC(window, 2k_ECCStatus) & DOC_TOGGLE_BIT) != tmp)
-				return ChipID;
-		break;
-
-	case DOC_ChipID_DocMil:
-		/* Check the TOGGLE bit in the ECC register */
-		tmp = ReadDOC(window, ECCConf) & DOC_TOGGLE_BIT;
-		if ((ReadDOC(window, ECCConf) & DOC_TOGGLE_BIT) != tmp)
-				return ChipID;
-		break;
-
-	default:
-#ifndef CONFIG_SYS_DOCPROBE_55AA
-/*
- * if the ID isn't the DoC2000 or DoCMillenium ID, so we can assume
- * the DOC is missing
- */
-# if 0
-		printf("Possible DiskOnChip with unknown ChipID %2.2X found at 0x%lx\n",
-		       ChipID, physadr);
-# endif
-#endif
-#ifndef DOC_PASSIVE_PROBE
-		/* Put back the contents of the DOCControl register, in case it's not
-		 * actually a DiskOnChip.
-		 */
-		WriteDOC(tmp2, window, DOCControl);
-#endif
-		return 0;
-	}
-
-	puts ("DiskOnChip failed TOGGLE test, dropping.\n");
-
-#ifndef DOC_PASSIVE_PROBE
-	/* Put back the contents of the DOCControl register: it's not a DiskOnChip */
-	WriteDOC(tmp2, window, DOCControl);
-#endif
-	return 0;
-}
-
-void doc_probe(unsigned long physadr)
-{
-	struct DiskOnChip *this = NULL;
-	int i=0, ChipID;
-
-	if ((ChipID = doccheck(physadr, physadr))) {
-
-		for (i=0; i<CONFIG_SYS_MAX_DOC_DEVICE; i++) {
-			if (doc_dev_desc[i].ChipID == DOC_ChipID_UNKNOWN) {
-				this = doc_dev_desc + i;
-				break;
-			}
-		}
-
-		if (!this) {
-			puts ("Cannot allocate memory for data structures.\n");
-			return;
-		}
-
-		if (curr_device == -1)
-			curr_device = i;
-
-		memset((char *)this, 0, sizeof(struct DiskOnChip));
-
-		this->virtadr = physadr;
-		this->physadr = physadr;
-		this->ChipID = ChipID;
-
-		DoC2k_init(this);
-	} else {
-		puts ("No DiskOnChip found\n");
-	}
-}
-#else
-void doc_probe(unsigned long physadr) {}
-#endif
diff --git a/common/cmd_jffs2.c b/common/cmd_jffs2.c
index 4db4a83..372ccb2 100644
--- a/common/cmd_jffs2.c
+++ b/common/cmd_jffs2.c
@@ -96,12 +96,8 @@
 #include <cramfs/cramfs_fs.h>
 
 #if defined(CONFIG_CMD_NAND)
-#ifdef CONFIG_NAND_LEGACY
-#include <linux/mtd/nand_legacy.h>
-#else /* !CONFIG_NAND_LEGACY */
 #include <linux/mtd/nand.h>
 #include <nand.h>
-#endif /* !CONFIG_NAND_LEGACY */
 #endif
 
 #if defined(CONFIG_CMD_ONENAND)
@@ -187,12 +183,7 @@ static int mtd_device_validate(u8 type, u8 num, u32 *size)
 	} else if (type == MTD_DEV_TYPE_NAND) {
 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
 		if (num < CONFIG_SYS_MAX_NAND_DEVICE) {
-#ifndef CONFIG_NAND_LEGACY
 			*size = nand_info[num].size;
-#else
-			extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
-			*size = nand_dev_desc[num].totlen;
-#endif
 			return 0;
 		}
 
@@ -267,17 +258,11 @@ static int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *d
 static inline u32 get_part_sector_size_nand(struct mtdids *id)
 {
 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
-#if defined(CONFIG_NAND_LEGACY)
-	extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
-
-	return nand_dev_desc[id->num].erasesize;
-#else
 	nand_info_t *nand;
 
 	nand = &nand_info[id->num];
 
 	return nand->erasesize;
-#endif
 #else
 	BUG();
 	return 0;
diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c
index 2d1446e..665995d 100644
--- a/common/cmd_mtdparts.c
+++ b/common/cmd_mtdparts.c
@@ -94,12 +94,8 @@
 #include <linux/mtd/mtd.h>
 
 #if defined(CONFIG_CMD_NAND)
-#ifdef CONFIG_NAND_LEGACY
-#include <linux/mtd/nand_legacy.h>
-#else /* !CONFIG_NAND_LEGACY */
 #include <linux/mtd/nand.h>
 #include <nand.h>
-#endif /* !CONFIG_NAND_LEGACY */
 #endif
 
 #if defined(CONFIG_CMD_ONENAND)
@@ -462,9 +458,6 @@ static int part_del(struct mtd_device *dev, struct part_info *part)
 		}
 	}
 
-#ifdef CONFIG_NAND_LEGACY
-	jffs2_free_cache(part);
-#endif
 	list_del(&part->link);
 	free(part);
 	dev->num_parts--;
@@ -491,9 +484,6 @@ static void part_delall(struct list_head *head)
 	list_for_each_safe(entry, n, head) {
 		part_tmp = list_entry(entry, struct part_info, link);
 
-#ifdef CONFIG_NAND_LEGACY
-		jffs2_free_cache(part_tmp);
-#endif
 		list_del(entry);
 		free(part_tmp);
 	}
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 2f70521..158a55f 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -11,7 +11,6 @@
 #include <common.h>
 
 
-#ifndef CONFIG_NAND_LEGACY
 /*
  *
  * New NAND support
@@ -688,414 +687,3 @@ U_BOOT_CMD(nboot, 4, 1, do_nandboot,
 	"[partition] | [[[loadAddr] dev] offset]"
 );
 #endif
-
-#else /* CONFIG_NAND_LEGACY */
-/*
- *
- * Legacy NAND support - to be phased out
- *
- */
-#include <command.h>
-#include <malloc.h>
-#include <asm/io.h>
-#include <watchdog.h>
-
-#ifdef CONFIG_show_boot_progress
-# include <status_led.h>
-# define show_boot_progress(arg)	show_boot_progress(arg)
-#else
-# define show_boot_progress(arg)
-#endif
-
-#if defined(CONFIG_CMD_NAND)
-#include <linux/mtd/nand_legacy.h>
-#if 0
-#include <linux/mtd/nand_ids.h>
-#include <jffs2/jffs2.h>
-#endif
-
-#ifdef CONFIG_OMAP1510
-void archflashwp(void *archdata, int wp);
-#endif
-
-#define ROUND_DOWN(value,boundary)      ((value) & (~((boundary)-1)))
-
-#undef	NAND_DEBUG
-#undef	PSYCHO_DEBUG
-
-/* ****************** WARNING *********************
- * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
- * erase (or at least attempt to erase) blocks that are marked
- * bad. This can be very handy if you are _sure_ that the block
- * is OK, say because you marked a good block bad to test bad
- * block handling and you are done testing, or if you have
- * accidentally marked blocks bad.
- *
- * Erasing factory marked bad blocks is a _bad_ idea. If the
- * erase succeeds there is no reliable way to find them again,
- * and attempting to program or erase bad blocks can affect
- * the data in _other_ (good) blocks.
- */
-#define	 ALLOW_ERASE_BAD_DEBUG 0
-
-#define CONFIG_MTD_NAND_ECC  /* enable ECC */
-#define CONFIG_MTD_NAND_ECC_JFFS2
-
-/* bits for nand_legacy_rw() `cmd'; or together as needed */
-#define NANDRW_READ         0x01
-#define NANDRW_WRITE        0x00
-#define NANDRW_JFFS2	    0x02
-#define NANDRW_JFFS2_SKIP   0x04
-
-/*
- * Imports from nand_legacy.c
- */
-extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
-extern int curr_device;
-extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
-			    size_t len, int clean);
-extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
-			 size_t len, size_t *retlen, u_char *buf);
-extern void nand_print(struct nand_chip *nand);
-extern void nand_print_bad(struct nand_chip *nand);
-extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
-			       size_t len, size_t *retlen, u_char *buf);
-extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
-				size_t len, size_t *retlen, const u_char *buf);
-
-
-int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
-{
-	int rcode = 0;
-
-	switch (argc) {
-	case 0:
-	case 1:
-		cmd_usage(cmdtp);
-		return 1;
-	case 2:
-		if (strcmp (argv[1], "info") == 0) {
-			int i;
-
-			putc ('\n');
-
-			for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; ++i) {
-				if (nand_dev_desc[i].ChipID ==
-				    NAND_ChipID_UNKNOWN)
-					continue;	/* list only known devices */
-				printf ("Device %d: ", i);
-				nand_print (&nand_dev_desc[i]);
-			}
-			return 0;
-
-		} else if (strcmp (argv[1], "device") == 0) {
-			if ((curr_device < 0)
-			    || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) {
-				puts ("\nno devices available\n");
-				return 1;
-			}
-			printf ("\nDevice %d: ", curr_device);
-			nand_print (&nand_dev_desc[curr_device]);
-			return 0;
-
-		} else if (strcmp (argv[1], "bad") == 0) {
-			if ((curr_device < 0)
-			    || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) {
-				puts ("\nno devices available\n");
-				return 1;
-			}
-			printf ("\nDevice %d bad blocks:\n", curr_device);
-			nand_print_bad (&nand_dev_desc[curr_device]);
-			return 0;
-
-		}
-		cmd_usage(cmdtp);
-		return 1;
-	case 3:
-		if (strcmp (argv[1], "device") == 0) {
-			int dev = (int) simple_strtoul (argv[2], NULL, 10);
-
-			printf ("\nDevice %d: ", dev);
-			if (dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
-				puts ("unknown device\n");
-				return 1;
-			}
-			nand_print (&nand_dev_desc[dev]);
-			/*nand_print (dev); */
-
-			if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
-				return 1;
-			}
-
-			curr_device = dev;
-
-			puts ("... is now current device\n");
-
-			return 0;
-		} else if (strcmp (argv[1], "erase") == 0
-			   && strcmp (argv[2], "clean") == 0) {
-			struct nand_chip *nand = &nand_dev_desc[curr_device];
-			ulong off = 0;
-			ulong size = nand->totlen;
-			int ret;
-
-			printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
-
-			ret = nand_legacy_erase (nand, off, size, 1);
-
-			printf ("%s\n", ret ? "ERROR" : "OK");
-
-			return ret;
-		}
-
-		cmd_usage(cmdtp);
-		return 1;
-	default:
-		/* at least 4 args */
-
-		if (strncmp (argv[1], "read", 4) == 0 ||
-		    strncmp (argv[1], "write", 5) == 0) {
-			ulong addr = simple_strtoul (argv[2], NULL, 16);
-			off_t off = simple_strtoul (argv[3], NULL, 16);
-			size_t size = simple_strtoul (argv[4], NULL, 16);
-			int cmd = (strncmp (argv[1], "read", 4) == 0) ?
-				  NANDRW_READ : NANDRW_WRITE;
-			size_t total;
-			int ret;
-			char *cmdtail = strchr (argv[1], '.');
-
-			if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
-				/* read out-of-band data */
-				if (cmd & NANDRW_READ) {
-					ret = nand_read_oob (nand_dev_desc + curr_device,
-							     off, size, &total,
-							     (u_char *) addr);
-				} else {
-					ret = nand_write_oob (nand_dev_desc + curr_device,
-							      off, size, &total,
-							      (u_char *) addr);
-				}
-				return ret;
-			} else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 7)) {
-				cmd |= NANDRW_JFFS2;	/* skip bad blocks (on read too) */
-				if (cmd & NANDRW_READ)
-					cmd |= NANDRW_JFFS2_SKIP;	/* skip bad blocks (on read too) */
-			} else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
-				cmd |= NANDRW_JFFS2;	/* skip bad blocks */
-#ifdef SXNI855T
-			/* need ".e" same as ".j" for compatibility with older units */
-			else if (cmdtail && !strcmp (cmdtail, ".e"))
-				cmd |= NANDRW_JFFS2;	/* skip bad blocks */
-#endif
-#ifdef CONFIG_SYS_NAND_SKIP_BAD_DOT_I
-			/* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
-			/* ".i" for image -> read skips bad block (no 0xff) */
-			else if (cmdtail && !strcmp (cmdtail, ".i")) {
-				cmd |= NANDRW_JFFS2;	/* skip bad blocks (on read too) */
-				if (cmd & NANDRW_READ)
-					cmd |= NANDRW_JFFS2_SKIP;	/* skip bad blocks (on read too) */
-			}
-#endif /* CONFIG_SYS_NAND_SKIP_BAD_DOT_I */
-			else if (cmdtail) {
-				cmd_usage(cmdtp);
-				return 1;
-			}
-
-			printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
-				(cmd & NANDRW_READ) ? "read" : "write",
-				curr_device, off, (ulong)size);
-
-			ret = nand_legacy_rw (nand_dev_desc + curr_device,
-					      cmd, off, size,
-					      &total, (u_char *) addr);
-
-			printf (" %d bytes %s: %s\n", total,
-				(cmd & NANDRW_READ) ? "read" : "written",
-				ret ? "ERROR" : "OK");
-
-			return ret;
-		} else if (strcmp (argv[1], "erase") == 0 &&
-			   (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
-			int clean = argc == 5;
-			ulong off =
-				simple_strtoul (argv[2 + clean], NULL, 16);
-			ulong size =
-				simple_strtoul (argv[3 + clean], NULL, 16);
-			int ret;
-
-			printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
-				curr_device, off, size);
-
-			ret = nand_legacy_erase (nand_dev_desc + curr_device,
-						 off, size, clean);
-
-			printf ("%s\n", ret ? "ERROR" : "OK");
-
-			return ret;
-		} else {
-			cmd_usage(cmdtp);
-			rcode = 1;
-		}
-
-		return rcode;
-	}
-}
-
-U_BOOT_CMD(
-	nand,	5,	1,	do_nand,
-	"legacy NAND sub-system",
-	"info  - show available NAND devices\n"
-	"nand device [dev] - show or set current device\n"
-	"nand read[.jffs2[s]]  addr off size\n"
-	"nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
-	"    at offset `off' to/from memory address `addr'\n"
-	"nand erase [clean] [off size] - erase `size' bytes from\n"
-	"    offset `off' (entire device if not specified)\n"
-	"nand bad - show bad blocks\n"
-	"nand read.oob addr off size - read out-of-band data\n"
-	"nand write.oob addr off size - read out-of-band data"
-);
-
-int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-	char *boot_device = NULL;
-	char *ep;
-	int dev;
-	ulong cnt;
-	ulong addr;
-	ulong offset = 0;
-	image_header_t *hdr;
-	int rcode = 0;
-#if defined(CONFIG_FIT)
-	const void *fit_hdr = NULL;
-#endif
-
-	show_boot_progress (52);
-	switch (argc) {
-	case 1:
-		addr = CONFIG_SYS_LOAD_ADDR;
-		boot_device = getenv ("bootdevice");
-		break;
-	case 2:
-		addr = simple_strtoul(argv[1], NULL, 16);
-		boot_device = getenv ("bootdevice");
-		break;
-	case 3:
-		addr = simple_strtoul(argv[1], NULL, 16);
-		boot_device = argv[2];
-		break;
-	case 4:
-		addr = simple_strtoul(argv[1], NULL, 16);
-		boot_device = argv[2];
-		offset = simple_strtoul(argv[3], NULL, 16);
-		break;
-	default:
-		cmd_usage(cmdtp);
-		show_boot_progress (-53);
-		return 1;
-	}
-
-	show_boot_progress (53);
-	if (!boot_device) {
-		puts ("\n** No boot device **\n");
-		show_boot_progress (-54);
-		return 1;
-	}
-	show_boot_progress (54);
-
-	dev = simple_strtoul(boot_device, &ep, 16);
-
-	if ((dev >= CONFIG_SYS_MAX_NAND_DEVICE) ||
-	    (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
-		printf ("\n** Device %d not available\n", dev);
-		show_boot_progress (-55);
-		return 1;
-	}
-	show_boot_progress (55);
-
-	printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
-	    dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
-	    offset);
-
-	if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
-			    SECTORSIZE, NULL, (u_char *)addr)) {
-		printf ("** Read error on %d\n", dev);
-		show_boot_progress (-56);
-		return 1;
-	}
-	show_boot_progress (56);
-
-	switch (genimg_get_format ((void *)addr)) {
-	case IMAGE_FORMAT_LEGACY:
-		hdr = (image_header_t *)addr;
-		image_print_contents (hdr);
-
-		cnt = image_get_image_size (hdr);
-		cnt -= SECTORSIZE;
-		break;
-#if defined(CONFIG_FIT)
-	case IMAGE_FORMAT_FIT:
-		fit_hdr = (const void *)addr;
-		puts ("Fit image detected...\n");
-
-		cnt = fit_get_size (fit_hdr);
-		break;
-#endif
-	default:
-		show_boot_progress (-57);
-		puts ("** Unknown image type\n");
-		return 1;
-	}
-	show_boot_progress (57);
-
-	if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
-			    offset + SECTORSIZE, cnt, NULL,
-			    (u_char *)(addr+SECTORSIZE))) {
-		printf ("** Read error on %d\n", dev);
-		show_boot_progress (-58);
-		return 1;
-	}
-	show_boot_progress (58);
-
-#if defined(CONFIG_FIT)
-	/* This cannot be done earlier, we need complete FIT image in RAM first */
-	if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
-		if (!fit_check_format (fit_hdr)) {
-			show_boot_progress (-150);
-			puts ("** Bad FIT image format\n");
-			return 1;
-		}
-		show_boot_progress (151);
-		fit_print_contents (fit_hdr);
-	}
-#endif
-
-	/* Loading ok, update default load address */
-
-	load_addr = addr;
-
-	/* Check if we should attempt an auto-start */
-	if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
-		char *local_args[2];
-		extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
-
-		local_args[0] = argv[0];
-		local_args[1] = NULL;
-
-		printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
-
-		do_bootm (cmdtp, 0, 1, local_args);
-		rcode = 1;
-	}
-	return rcode;
-}
-
-U_BOOT_CMD(
-	nboot,	4,	1,	do_nandboot,
-	"boot from NAND device",
-	"loadAddr dev"
-);
-
-#endif
-
-#endif /* CONFIG_NAND_LEGACY */
diff --git a/common/docecc.c b/common/docecc.c
deleted file mode 100644
index 3412aff..0000000
--- a/common/docecc.c
+++ /dev/null
@@ -1,513 +0,0 @@
-/*
- * ECC algorithm for M-systems disk on chip. We use the excellent Reed
- * Solmon code of Phil Karn (karn@ka9q.ampr.org) available under the
- * GNU GPL License. The rest is simply to convert the disk on chip
- * syndrom into a standard syndom.
- *
- * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
- * Copyright (C) 2000 Netgem S.A.
- *
- * $Id: docecc.c,v 1.4 2001/10/02 15:05:13 dwmw2 Exp $
- *
- * 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 <config.h>
-#include <common.h>
-#include <malloc.h>
-
-#undef ECC_DEBUG
-#undef PSYCHO_DEBUG
-
-#include <linux/mtd/doc2000.h>
-
-/* need to undef it (from asm/termbits.h) */
-#undef B0
-
-#define MM 10 /* Symbol size in bits */
-#define KK (1023-4) /* Number of data symbols per block */
-#define B0 510 /* First root of generator polynomial, alpha form */
-#define PRIM 1 /* power of alpha used to generate roots of generator poly */
-#define	NN ((1 << MM) - 1)
-
-typedef unsigned short dtype;
-
-/* 1+x^3+x^10 */
-static const int Pp[MM+1] = { 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1 };
-
-/* This defines the type used to store an element of the Galois Field
- * used by the code. Make sure this is something larger than a char if
- * if anything larger than GF(256) is used.
- *
- * Note: unsigned char will work up to GF(256) but int seems to run
- * faster on the Pentium.
- */
-typedef int gf;
-
-/* No legal value in index form represents zero, so
- * we need a special value for this purpose
- */
-#define A0	(NN)
-
-/* Compute x % NN, where NN is 2**MM - 1,
- * without a slow divide
- */
-static inline gf
-modnn(int x)
-{
-  while (x >= NN) {
-    x -= NN;
-    x = (x >> MM) + (x & NN);
-  }
-  return x;
-}
-
-#define	CLEAR(a,n) {\
-int ci;\
-for(ci=(n)-1;ci >=0;ci--)\
-(a)[ci] = 0;\
-}
-
-#define	COPY(a,b,n) {\
-int ci;\
-for(ci=(n)-1;ci >=0;ci--)\
-(a)[ci] = (b)[ci];\
-}
-
-#define	COPYDOWN(a,b,n) {\
-int ci;\
-for(ci=(n)-1;ci >=0;ci--)\
-(a)[ci] = (b)[ci];\
-}
-
-#define Ldec 1
-
-/* generate GF(2**m) from the irreducible polynomial p(X) in Pp[0]..Pp[m]
-   lookup tables:  index->polynomial form   alpha_to[] contains j=alpha**i;
-		   polynomial form -> index form  index_of[j=alpha**i] = i
-   alpha=2 is the primitive element of GF(2**m)
-   HARI's COMMENT: (4/13/94) alpha_to[] can be used as follows:
-	Let @ represent the primitive element commonly called "alpha" that
-   is the root of the primitive polynomial p(x). Then in GF(2^m), for any
-   0 <= i <= 2^m-2,
-	@^i = a(0) + a(1) @ + a(2) @^2 + ... + a(m-1) @^(m-1)
-   where the binary vector (a(0),a(1),a(2),...,a(m-1)) is the representation
-   of the integer "alpha_to[i]" with a(0) being the LSB and a(m-1) the MSB. Thus for
-   example the polynomial representation of @^5 would be given by the binary
-   representation of the integer "alpha_to[5]".
-		   Similarily, index_of[] can be used as follows:
-	As above, let @ represent the primitive element of GF(2^m) that is
-   the root of the primitive polynomial p(x). In order to find the power
-   of @ (alpha) that has the polynomial representation
-	a(0) + a(1) @ + a(2) @^2 + ... + a(m-1) @^(m-1)
-   we consider the integer "i" whose binary representation with a(0) being LSB
-   and a(m-1) MSB is (a(0),a(1),...,a(m-1)) and locate the entry
-   "index_of[i]". Now, @^index_of[i] is that element whose polynomial
-    representation is (a(0),a(1),a(2),...,a(m-1)).
-   NOTE:
-	The element alpha_to[2^m-1] = 0 always signifying that the
-   representation of "@^infinity" = 0 is (0,0,0,...,0).
-	Similarily, the element index_of[0] = A0 always signifying
-   that the power of alpha which has the polynomial representation
-   (0,0,...,0) is "infinity".
-
-*/
-
-static void
-generate_gf(dtype Alpha_to[NN + 1], dtype Index_of[NN + 1])
-{
-  register int i, mask;
-
-  mask = 1;
-  Alpha_to[MM] = 0;
-  for (i = 0; i < MM; i++) {
-    Alpha_to[i] = mask;
-    Index_of[Alpha_to[i]] = i;
-    /* If Pp[i] == 1 then, term @^i occurs in poly-repr of @^MM */
-    if (Pp[i] != 0)
-      Alpha_to[MM] ^= mask;	/* Bit-wise EXOR operation */
-    mask <<= 1;	/* single left-shift */
-  }
-  Index_of[Alpha_to[MM]] = MM;
-  /*
-   * Have obtained poly-repr of @^MM. Poly-repr of @^(i+1) is given by
-   * poly-repr of @^i shifted left one-bit and accounting for any @^MM
-   * term that may occur when poly-repr of @^i is shifted.
-   */
-  mask >>= 1;
-  for (i = MM + 1; i < NN; i++) {
-    if (Alpha_to[i - 1] >= mask)
-      Alpha_to[i] = Alpha_to[MM] ^ ((Alpha_to[i - 1] ^ mask) << 1);
-    else
-      Alpha_to[i] = Alpha_to[i - 1] << 1;
-    Index_of[Alpha_to[i]] = i;
-  }
-  Index_of[0] = A0;
-  Alpha_to[NN] = 0;
-}
-
-/*
- * Performs ERRORS+ERASURES decoding of RS codes. bb[] is the content
- * of the feedback shift register after having processed the data and
- * the ECC.
- *
- * Return number of symbols corrected, or -1 if codeword is illegal
- * or uncorrectable. If eras_pos is non-null, the detected error locations
- * are written back. NOTE! This array must be at least NN-KK elements long.
- * The corrected data are written in eras_val[]. They must be xor with the data
- * to retrieve the correct data : data[erase_pos[i]] ^= erase_val[i] .
- *
- * First "no_eras" erasures are declared by the calling program. Then, the
- * maximum # of errors correctable is t_after_eras = floor((NN-KK-no_eras)/2).
- * If the number of channel errors is not greater than "t_after_eras" the
- * transmitted codeword will be recovered. Details of algorithm can be found
- * in R. Blahut's "Theory ... of Error-Correcting Codes".
-
- * Warning: the eras_pos[] array must not contain duplicate entries; decoder failure
- * will result. The decoder *could* check for this condition, but it would involve
- * extra time on every decoding operation.
- * */
-static int
-eras_dec_rs(dtype Alpha_to[NN + 1], dtype Index_of[NN + 1],
-	    gf bb[NN - KK + 1], gf eras_val[NN-KK], int eras_pos[NN-KK],
-	    int no_eras)
-{
-  int deg_lambda, el, deg_omega;
-  int i, j, r,k;
-  gf u,q,tmp,num1,num2,den,discr_r;
-  gf lambda[NN-KK + 1], s[NN-KK + 1];	/* Err+Eras Locator poly
-					 * and syndrome poly */
-  gf b[NN-KK + 1], t[NN-KK + 1], omega[NN-KK + 1];
-  gf root[NN-KK], reg[NN-KK + 1], loc[NN-KK];
-  int syn_error, count;
-
-  syn_error = 0;
-  for(i=0;i<NN-KK;i++)
-      syn_error |= bb[i];
-
-  if (!syn_error) {
-    /* if remainder is zero, data[] is a codeword and there are no
-     * errors to correct. So return data[] unmodified
-     */
-    count = 0;
-    goto finish;
-  }
-
-  for(i=1;i<=NN-KK;i++){
-    s[i] = bb[0];
-  }
-  for(j=1;j<NN-KK;j++){
-    if(bb[j] == 0)
-      continue;
-    tmp = Index_of[bb[j]];
-
-    for(i=1;i<=NN-KK;i++)
-      s[i] ^= Alpha_to[modnn(tmp + (B0+i-1)*PRIM*j)];
-  }
-
-  /* undo the feedback register implicit multiplication and convert
-     syndromes to index form */
-
-  for(i=1;i<=NN-KK;i++) {
-      tmp = Index_of[s[i]];
-      if (tmp != A0)
-	  tmp = modnn(tmp + 2 * KK * (B0+i-1)*PRIM);
-      s[i] = tmp;
-  }
-
-  CLEAR(&lambda[1],NN-KK);
-  lambda[0] = 1;
-
-  if (no_eras > 0) {
-    /* Init lambda to be the erasure locator polynomial */
-    lambda[1] = Alpha_to[modnn(PRIM * eras_pos[0])];
-    for (i = 1; i < no_eras; i++) {
-      u = modnn(PRIM*eras_pos[i]);
-      for (j = i+1; j > 0; j--) {
-	tmp = Index_of[lambda[j - 1]];
-	if(tmp != A0)
-	  lambda[j] ^= Alpha_to[modnn(u + tmp)];
-      }
-    }
-#ifdef ECC_DEBUG
-    /* Test code that verifies the erasure locator polynomial just constructed
-       Needed only for decoder debugging. */
-
-    /* find roots of the erasure location polynomial */
-    for(i=1;i<=no_eras;i++)
-      reg[i] = Index_of[lambda[i]];
-    count = 0;
-    for (i = 1,k=NN-Ldec; i <= NN; i++,k = modnn(NN+k-Ldec)) {
-      q = 1;
-      for (j = 1; j <= no_eras; j++)
-	if (reg[j] != A0) {
-	  reg[j] = modnn(reg[j] + j);
-	  q ^= Alpha_to[reg[j]];
-	}
-      if (q != 0)
-	continue;
-      /* store root and error location number indices */
-      root[count] = i;
-      loc[count] = k;
-      count++;
-    }
-    if (count != no_eras) {
-      printf("\n lambda(x) is WRONG\n");
-      count = -1;
-      goto finish;
-    }
-#ifdef PSYCHO_DEBUG
-    printf("\n Erasure positions as determined by roots of Eras Loc Poly:\n");
-    for (i = 0; i < count; i++)
-      printf("%d ", loc[i]);
-    printf("\n");
-#endif
-#endif
-  }
-  for(i=0;i<NN-KK+1;i++)
-    b[i] = Index_of[lambda[i]];
-
-  /*
-   * Begin Berlekamp-Massey algorithm to determine error+erasure
-   * locator polynomial
-   */
-  r = no_eras;
-  el = no_eras;
-  while (++r <= NN-KK) {	/* r is the step number */
-    /* Compute discrepancy at the r-th step in poly-form */
-    discr_r = 0;
-    for (i = 0; i < r; i++){
-      if ((lambda[i] != 0) && (s[r - i] != A0)) {
-	discr_r ^= Alpha_to[modnn(Index_of[lambda[i]] + s[r - i])];
-      }
-    }
-    discr_r = Index_of[discr_r];	/* Index form */
-    if (discr_r == A0) {
-      /* 2 lines below: B(x) <-- x*B(x) */
-      COPYDOWN(&b[1],b,NN-KK);
-      b[0] = A0;
-    } else {
-      /* 7 lines below: T(x) <-- lambda(x) - discr_r*x*b(x) */
-      t[0] = lambda[0];
-      for (i = 0 ; i < NN-KK; i++) {
-	if(b[i] != A0)
-	  t[i+1] = lambda[i+1] ^ Alpha_to[modnn(discr_r + b[i])];
-	else
-	  t[i+1] = lambda[i+1];
-      }
-      if (2 * el <= r + no_eras - 1) {
-	el = r + no_eras - el;
-	/*
-	 * 2 lines below: B(x) <-- inv(discr_r) *
-	 * lambda(x)
-	 */
-	for (i = 0; i <= NN-KK; i++)
-	  b[i] = (lambda[i] == 0) ? A0 : modnn(Index_of[lambda[i]] - discr_r + NN);
-      } else {
-	/* 2 lines below: B(x) <-- x*B(x) */
-	COPYDOWN(&b[1],b,NN-KK);
-	b[0] = A0;
-      }
-      COPY(lambda,t,NN-KK+1);
-    }
-  }
-
-  /* Convert lambda to index form and compute deg(lambda(x)) */
-  deg_lambda = 0;
-  for(i=0;i<NN-KK+1;i++){
-    lambda[i] = Index_of[lambda[i]];
-    if(lambda[i] != A0)
-      deg_lambda = i;
-  }
-  /*
-   * Find roots of the error+erasure locator polynomial by Chien
-   * Search
-   */
-  COPY(&reg[1],&lambda[1],NN-KK);
-  count = 0;		/* Number of roots of lambda(x) */
-  for (i = 1,k=NN-Ldec; i <= NN; i++,k = modnn(NN+k-Ldec)) {
-    q = 1;
-    for (j = deg_lambda; j > 0; j--){
-      if (reg[j] != A0) {
-	reg[j] = modnn(reg[j] + j);
-	q ^= Alpha_to[reg[j]];
-      }
-    }
-    if (q != 0)
-      continue;
-    /* store root (index-form) and error location number */
-    root[count] = i;
-    loc[count] = k;
-    /* If we've already found max possible roots,
-     * abort the search to save time
-     */
-    if(++count == deg_lambda)
-      break;
-  }
-  if (deg_lambda != count) {
-    /*
-     * deg(lambda) unequal to number of roots => uncorrectable
-     * error detected
-     */
-    count = -1;
-    goto finish;
-  }
-  /*
-   * Compute err+eras evaluator poly omega(x) = s(x)*lambda(x) (modulo
-   * x**(NN-KK)). in index form. Also find deg(omega).
-   */
-  deg_omega = 0;
-  for (i = 0; i < NN-KK;i++){
-    tmp = 0;
-    j = (deg_lambda < i) ? deg_lambda : i;
-    for(;j >= 0; j--){
-      if ((s[i + 1 - j] != A0) && (lambda[j] != A0))
-	tmp ^= Alpha_to[modnn(s[i + 1 - j] + lambda[j])];
-    }
-    if(tmp != 0)
-      deg_omega = i;
-    omega[i] = Index_of[tmp];
-  }
-  omega[NN-KK] = A0;
-
-  /*
-   * Compute error values in poly-form. num1 = omega(inv(X(l))), num2 =
-   * inv(X(l))**(B0-1) and den = lambda_pr(inv(X(l))) all in poly-form
-   */
-  for (j = count-1; j >=0; j--) {
-    num1 = 0;
-    for (i = deg_omega; i >= 0; i--) {
-      if (omega[i] != A0)
-	num1  ^= Alpha_to[modnn(omega[i] + i * root[j])];
-    }
-    num2 = Alpha_to[modnn(root[j] * (B0 - 1) + NN)];
-    den = 0;
-
-    /* lambda[i+1] for i even is the formal derivative lambda_pr of lambda[i] */
-    for (i = min(deg_lambda,NN-KK-1) & ~1; i >= 0; i -=2) {
-      if(lambda[i+1] != A0)
-	den ^= Alpha_to[modnn(lambda[i+1] + i * root[j])];
-    }
-    if (den == 0) {
-#ifdef ECC_DEBUG
-      printf("\n ERROR: denominator = 0\n");
-#endif
-      /* Convert to dual- basis */
-      count = -1;
-      goto finish;
-    }
-    /* Apply error to data */
-    if (num1 != 0) {
-	eras_val[j] = Alpha_to[modnn(Index_of[num1] + Index_of[num2] + NN - Index_of[den])];
-    } else {
-	eras_val[j] = 0;
-    }
-  }
- finish:
-  for(i=0;i<count;i++)
-      eras_pos[i] = loc[i];
-  return count;
-}
-
-/***************************************************************************/
-/* The DOC specific code begins here */
-
-#define SECTOR_SIZE 512
-/* The sector bytes are packed into NB_DATA MM bits words */
-#define NB_DATA (((SECTOR_SIZE + 1) * 8 + 6) / MM)
-
-/*
- * Correct the errors in 'sector[]' by using 'ecc1[]' which is the
- * content of the feedback shift register applyied to the sector and
- * the ECC. Return the number of errors corrected (and correct them in
- * sector), or -1 if error
- */
-int doc_decode_ecc(unsigned char sector[SECTOR_SIZE], unsigned char ecc1[6])
-{
-    int parity, i, nb_errors;
-    gf bb[NN - KK + 1];
-    gf error_val[NN-KK];
-    int error_pos[NN-KK], pos, bitpos, index, val;
-    dtype *Alpha_to, *Index_of;
-
-    /* init log and exp tables here to save memory. However, it is slower */
-    Alpha_to = malloc((NN + 1) * sizeof(dtype));
-    if (!Alpha_to)
-	return -1;
-
-    Index_of = malloc((NN + 1) * sizeof(dtype));
-    if (!Index_of) {
-	free(Alpha_to);
-	return -1;
-    }
-
-    generate_gf(Alpha_to, Index_of);
-
-    parity = ecc1[1];
-
-    bb[0] =  (ecc1[4] & 0xff) | ((ecc1[5] & 0x03) << 8);
-    bb[1] = ((ecc1[5] & 0xfc) >> 2) | ((ecc1[2] & 0x0f) << 6);
-    bb[2] = ((ecc1[2] & 0xf0) >> 4) | ((ecc1[3] & 0x3f) << 4);
-    bb[3] = ((ecc1[3] & 0xc0) >> 6) | ((ecc1[0] & 0xff) << 2);
-
-    nb_errors = eras_dec_rs(Alpha_to, Index_of, bb,
-			    error_val, error_pos, 0);
-    if (nb_errors <= 0)
-	goto the_end;
-
-    /* correct the errors */
-    for(i=0;i<nb_errors;i++) {
-	pos = error_pos[i];
-	if (pos >= NB_DATA && pos < KK) {
-	    nb_errors = -1;
-	    goto the_end;
-	}
-	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 = error_val[i] >> (2 + bitpos);
-		parity ^= val;
-		if (index < SECTOR_SIZE)
-		    sector[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 = error_val[i] << (8 - bitpos);
-		parity ^= val;
-		if (index < SECTOR_SIZE)
-		    sector[index] ^= val;
-	    }
-	}
-    }
-
-    /* use parity to test extra errors */
-    if ((parity & 0xff) != 0)
-	nb_errors = -1;
-
- the_end:
-    free(Alpha_to);
-    free(Index_of);
-    return nb_errors;
-}
diff --git a/common/env_nand.c b/common/env_nand.c
index 90a1c45..8052fb7 100644
--- a/common/env_nand.c
+++ b/common/env_nand.c
@@ -57,10 +57,6 @@
 #define CONFIG_ENV_RANGE	CONFIG_ENV_SIZE
 #endif
 
-int nand_legacy_rw (struct nand_chip* nand, int cmd,
-	    size_t start, size_t len,
-	    size_t * retlen, u_char * buf);
-
 /* references to names in env_common.c */
 extern uchar default_environment[];
 extern int default_environment_size;