mtd表
dev: size erasesize name
mtd0: 00080000 00020000 "loader" //512K
mtd1: 00100000 00020000 "uboot" //1M
mtd2: 00080000 00020000 "envirment" //512K
mtd3: 00800000 00020000 "kernel" //8M
mtd4: 00100000 00020000 "device-tree" //1M
mtd5: 03400000 00020000 "rootfs_uRamdisk" //52M
mtd6: 1c000000 00020000 "userfilesystem" //448M
要擦写的分区 /dev/mtd5 信息
root@lig-ppc:/nandflash# mtd_debug info /dev/mtd5
mtd.type = MTD_NANDFLASH
mtd.flags = MTD_CAP_NANDFLASH
mtd.size = 54525952 (52M)
mtd.erasesize = 131072 (128K)
mtd.writesize = 2048 (2K)
mtd.oobsize = 64
regions = 0
操作
1.flash_eraseall /dev/mtd5
2.nandwrite -p /dev/mtd5 uRamdisk_upgrade
uboot中的启动信息
正常:
## Loading init Ramdisk from Legacy Image at 03000000 ...
Image Name: init ramdisk
Created: 2017-12-04 8:20:58 UTC
Image Type: PowerPC Linux RAMDisk Image (gzip compressed)
Data Size: 12549477 Bytes = 12 MB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
擦写后
.....
UnCorrectable RS-ECC Error
UnCorrectable RS-ECC Error
UnCorrectable RS-ECC Error
UnCorrectable RS-ECC Error
.....
## Loading init Ramdisk from Legacy Image at 03000000 ...
Image Name: init ramdisk
Created: 2017-12-04 8:20:58 UTC
Image Type: PowerPC Linux RAMDisk Image (gzip compressed)
Data Size: 12549477 Bytes = 12 MB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... Bad Data CRC
Ramdisk image is corrupt or invalid
uboot下操作nandwrite时,能正常启动,目前就是在linux下进行nandwrite操作,无法正常启动
文件大小读取的是正确的,但是校验错误了,请教大神,这个校验问题怎么解决?或者这个问题的解决思路应该怎么办?
nandwrite 使用的是mtd-utils-1.0.0
代码:
/*
* nandwrite.c
*
* Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
* 2003 Thomas Gleixner (tglx@linutronix.de)
*
* $Id: nandwrite.c,v 1.32 2005/11/07 11:15:13 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.
*
* Overview:
* This utility writes a binary image directly to a NAND flash
* chip or NAND chips contained in DoC devices. This is the
* "inverse operation" of nanddump.
*
* tglx: Major rewrite to handle bad blocks, write data with or without ECC
* write oob data only on request
*
* Bug/ToDo:
*/
#define _GNU_SOURCE
#include <ctype.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <getopt.h>
#include <asm/types.h>
#include "mtd/mtd-user.h"
#define PROGRAM "nandwrite"
#define VERSION "$Revision: 1.32 $"
#define MAX_PAGE_SIZE 2048
#define MAX_OOB_SIZE 64
/*
* Buffer array used for writing data
*/
unsigned char writebuf[MAX_PAGE_SIZE];
unsigned char oobbuf[MAX_OOB_SIZE];
unsigned char oobreadbuf[MAX_OOB_SIZE];
// oob layouts to pass into the kernel as default
struct nand_oobinfo none_oobinfo = {
.useecc = MTD_NANDECC_OFF,
};
struct nand_oobinfo jffs2_oobinfo = {
.useecc = MTD_NANDECC_PLACE,
.eccbytes = 6,
.eccpos = { 0, 1, 2, 3, 6, 7 }
};
struct nand_oobinfo yaffs_oobinfo = {
.useecc = MTD_NANDECC_PLACE,
.eccbytes = 6,
.eccpos = { 8, 9, 10, 13, 14, 15}
};
struct nand_oobinfo autoplace_oobinfo = {
.useecc = MTD_NANDECC_AUTOPLACE
};
void display_help (void)
{
printf("Usage: nandwrite [OPTION] MTD_DEVICE INPUTFILE\n"
"Writes to the specified MTD device.\n"
"\n"
" -a, --autoplace Use auto oob layout\n"
" -j, --jffs2 force jffs2 oob layout (legacy support)\n"
" -y, --yaffs force yaffs oob layout (legacy support)\n"
" -f, --forcelegacy force legacy support on autoplacement enabled mtd device\n"
" -n, --noecc write without ecc\n"
" -o, --oob image contains oob data\n"
" -s addr, --start=addr set start address (default is 0)\n"
" -p, --pad pad to page size\n"
" -b, --blockalign=1|2|4 set multiple of eraseblocks to align to\n"
" -q, --quiet don't display progress messages\n"
" --help display this help and exit\n"
" --version output version information and exit\n");
exit(0);
}
void display_version (void)
{
printf(PROGRAM " " VERSION "\n"
"\n"
"Copyright (C) 2003 Thomas Gleixner \n"
"\n"
PROGRAM " comes with NO WARRANTY\n"
"to the extent permitted by law.\n"
"\n"
"You may redistribute copies of " PROGRAM "\n"
"under the terms of the GNU General Public Licence.\n"
"See the file `COPYING' for more information.\n");
exit(0);
}
char *mtd_device, *img;
int mtdoffset = 0;
int quiet = 0;
int writeoob = 0;
int autoplace = 0;
int forcejffs2 = 0;
int forceyaffs = 0;
int forcelegacy = 0;
int noecc = 0;
int pad = 0;
int blockalign = 1; /*default to using 16K block size */
void process_options (int argc, char *argv[])
{
int error = 0;
for (;;) {
int option_index = 0;
static const char *short_options = "ab:fjnopqs:y";
static const struct option long_options[] = {
{"help", no_argument, 0, 0},
{"version", no_argument, 0, 0},
{"autoplace", no_argument, 0, 'a'},
{"blockalign", required_argument, 0, 'b'},
{"forcelegacy", no_argument, 0, 'f'},
{"jffs2", no_argument, 0, 'j'},
{"noecc", no_argument, 0, 'n'},
{"oob", no_argument, 0, 'o'},
{"pad", no_argument, 0, 'p'},
{"quiet", no_argument, 0, 'q'},
{"start", required_argument, 0, 's'},
{"yaffs", no_argument, 0, 'y'},
{0, 0, 0, 0},
};
int c = getopt_long(argc, argv, short_options,
long_options, &option_index);
if (c == EOF) {
break;
}
switch (c) {
case 0:
switch (option_index) {
case 0:
display_help();
break;
case 1:
display_version();
break;
}
break;
case 'q':
quiet = 1;
break;
case 'a':
autoplace = 1;
break;
case 'j':
forcejffs2 = 1;
break;
case 'y':
forceyaffs = 1;
break;
case 'f':
forcelegacy = 1;
break;
case 'n':
noecc = 1;
break;
case 'o':
writeoob = 1;
break;
case 'p':
pad = 1;
break;
case 's':
mtdoffset = atoi (optarg);
break;
case 'b':
blockalign = atoi (optarg);
break;
case '?':
error = 1;
break;
}
}
if ((argc - optind) != 2 || error)
display_help ();
mtd_device = argv[optind++];
img = argv[optind];
}
/*
* Main program
*/
int main(int argc, char **argv)
{
int cnt, fd, ifd, imglen = 0, pagelen, baderaseblock, blockstart = -1;
struct mtd_info_user meminfo;
struct mtd_oob_buf oob;
loff_t offs;
int ret, readlen;
int oobinfochanged = 0;
struct nand_oobinfo old_oobinfo;
process_options(argc, argv);
memset(oobbuf, 0xff, sizeof(oobbuf));
if (pad && writeoob) {
fprintf(stderr, "Can't pad when oob data is present.\n");
exit(1);
}
/* Open the device */
if ((fd = open(mtd_device, O_RDWR)) == -1) {
perror("open flash");
exit(1);
}
/* Fill in MTD device capability structure */
if (ioctl(fd, MEMGETINFO, &meminfo) != 0) {
perror("MEMGETINFO");
close(fd);
exit(1);
}
/* Set erasesize to specified number of blocks - to match jffs2 (virtual) block size */
meminfo.erasesize *= 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)) {
fprintf(stderr, "Unknown flash (not normal NAND)\n");
close(fd);
exit(1);
}
/* Read the current oob info */
if (ioctl (fd, MEMGETOOBSEL, &old_oobinfo) != 0) {
perror ("MEMGETOOBSEL");
close (fd);
exit (1);
}
// write without ecc ?
if (noecc) {
if (ioctl (fd, MEMSETOOBSEL, &none_oobinfo) != 0) {
perror ("MEMSETOOBSEL");
close (fd);
exit (1);
}
oobinfochanged = 1;
}
// autoplace ECC ?
if (autoplace && (old_oobinfo.useecc != MTD_NANDECC_AUTOPLACE)) {
if (ioctl (fd, MEMSETOOBSEL, &autoplace_oobinfo) != 0) {
perror ("MEMSETOOBSEL");
close (fd);
exit (1);
}
oobinfochanged = 1;
}
/*
* force oob layout for jffs2 or yaffs ?
* Legacy support
*/
if (forcejffs2 || forceyaffs) {
struct nand_oobinfo *oobsel = forcejffs2 ? &jffs2_oobinfo : &yaffs_oobinfo;
if (autoplace) {
fprintf(stderr, "Autoplacement is not possible for legacy -j/-y options\n");
goto restoreoob;
}
if ((old_oobinfo.useecc == MTD_NANDECC_AUTOPLACE) && !forcelegacy) {
fprintf(stderr, "Use -f option to enforce legacy placement on autoplacement enabled mtd device\n");
goto restoreoob;
}
if (meminfo.oobsize == 8) {
if (forceyaffs) {
fprintf (stderr, "YAFSS cannot operate on 256 Byte page size");
goto restoreoob;
}
/* Adjust number of ecc bytes */
jffs2_oobinfo.eccbytes = 3;
}
if (ioctl (fd, MEMSETOOBSEL, oobsel) != 0) {
perror ("MEMSETOOBSEL");
goto restoreoob;
}
}
oob.length = meminfo.oobsize;
oob.ptr = noecc ? oobreadbuf : oobbuf;
/* Open the input file */
if ((ifd = open(img, O_RDONLY)) == -1) {
perror("open input file");
goto restoreoob;
}
// get image length
imglen = lseek(ifd, 0, SEEK_END);
lseek (ifd, 0, SEEK_SET);
pagelen = meminfo.oobblock + ((writeoob == 1) ? meminfo.oobsize : 0);
// Check, if file is pagealigned
if ((!pad) && ((imglen % pagelen) != 0)) {
fprintf (stderr, "Input file is not page aligned\n");
goto closeall;
}
// Check, if length fits into device
if ( ((imglen / pagelen) * meminfo.oobblock) > (meminfo.size - mtdoffset)) {
fprintf (stderr, "Image %d bytes, NAND page %d bytes, OOB area %u bytes, device size %u bytes\n",
imglen, pagelen, meminfo.oobblock, meminfo.size);
perror ("Input file does not fit into device");
goto closeall;
}
/* Get data from input and write to the device */
while (imglen && (mtdoffset < meminfo.size)) {
// new eraseblock , check for bad block(s)
// Stay in the loop to be sure if the mtdoffset 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;
if (!quiet)
fprintf (stdout, "Writing data to block %x\n", blockstart);
/* Check all the blocks in an erase block for bad blocks */
do {
if ((ret = ioctl(fd, MEMGETBADBLOCK, &offs)) < 0) {
perror("ioctl(MEMGETBADBLOCK)");
goto closeall;
}
if (ret == 1) {
baderaseblock = 1;
if (!quiet)
fprintf (stderr, "Bad block at %x, %u block(s) from %x will be skipped\n", (int) offs, blockalign, blockstart);
}
if (baderaseblock) {
mtdoffset = blockstart + meminfo.erasesize;
}
offs += meminfo.erasesize / blockalign ;
} while ( offs < blockstart + meminfo.erasesize );
}
readlen = meminfo.oobblock;
if (pad && (imglen < readlen))
{
readlen = imglen;
memset(writebuf + readlen, 0xff, meminfo.oobblock - readlen);
}
/* Read Page Data from input file */
if ((cnt = read(ifd, writebuf, readlen)) != readlen) {
if (cnt == 0) // EOF
break;
perror ("File I/O error on input file");
goto closeall;
}
if (writeoob) {
/* Read OOB data from input file, exit on failure */
if ((cnt = read(ifd, oobreadbuf, meminfo.oobsize)) != meminfo.oobsize) {
perror ("File I/O error on input file");
goto closeall;
}
if (!noecc) {
int i, start, len;
/*
* We use autoplacement and have the oobinfo with the autoplacement
* information from the kernel available
*
* Modified to support out of order oobfree segments,
* such as the layout used by diskonchip.c
*/
if (!oobinfochanged && (old_oobinfo.useecc == MTD_NANDECC_AUTOPLACE)) {
for (i = 0;old_oobinfo.oobfree[i][1]; i++) {
/* Set the reserved bytes to 0xff */
start = old_oobinfo.oobfree[i][0];
len = old_oobinfo.oobfree[i][1];
memcpy(oobbuf + start,
oobreadbuf + start,
len);
}
} else {
/* Set at least the ecc byte positions to 0xff */
start = old_oobinfo.eccbytes;
len = meminfo.oobsize - start;
memcpy(oobbuf + start,
oobreadbuf + start,
len);
}
}
/* Write OOB data first, as ecc will be placed in there*/
oob.start = mtdoffset;
if (ioctl(fd, MEMWRITEOOB, &oob) != 0) {
perror ("ioctl(MEMWRITEOOB)");
goto closeall;
}
imglen -= meminfo.oobsize;
}
/* Write out the Page data */
if (pwrite(fd, writebuf, meminfo.oobblock, mtdoffset) != meminfo.oobblock) {
perror ("pwrite");
goto closeall;
}
imglen -= readlen;
mtdoffset += meminfo.oobblock;
}
closeall:
close(ifd);
restoreoob:
if (oobinfochanged) {
if (ioctl (fd, MEMSETOOBSEL, &old_oobinfo) != 0) {
perror ("MEMSETOOBSEL");
close (fd);
exit (1);
}
}
close(fd);
if (imglen > 0) {
perror ("Data did not fit into device, due to bad blocks\n");
exit (1);
}
/* Return happy */
return 0;
}
uboot中nandwrite部分的代码
/*
* Driver for NAND support, Rick Bronson
* borrowed heavily from:
* (c) 1999 Machine Vision Holdings, Inc.
* (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
*
* Added 16-bit nand support
* (C) 2004 Texas Instruments
*/
#include <common.h>
#ifndef CONFIG_NAND_LEGACY
/*
*
* New NAND support
*
*/
#include <common.h>
#include <linux/mtd/mtd.h>
#if defined(CONFIG_CMD_NAND)
#include <command.h>
#include <watchdog.h>
#include <malloc.h>
#include <asm/byteorder.h>
#include <jffs2/jffs2.h>
#include <nand.h>
#if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
/* parition handling routines */
int mtdparts_init(void);
int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
int find_dev_and_part(const char *id, struct mtd_device **dev,
u8 *part_num, struct part_info **part);
#endif
static int nand_dump(nand_info_t *nand, ulong off, int only_oob)
{
int i;
u_char *datbuf, *oobbuf, *p;
datbuf = malloc(nand->writesize + nand->oobsize);
oobbuf = malloc(nand->oobsize);
if (!datbuf || !oobbuf) {
puts("No memory for page buffer\n");
return 1;
}
off &= ~(nand->writesize - 1);
loff_t addr = (loff_t) off;
struct mtd_oob_ops ops;
memset(&ops, 0, sizeof(ops));
ops.datbuf = datbuf;
ops.oobbuf = oobbuf; /* must exist, but oob data will be appended to ops.datbuf */
ops.len = nand->writesize;
ops.ooblen = nand->oobsize;
ops.mode = MTD_OOB_RAW;
i = nand->read_oob(nand, addr, &ops);
if (i < 0) {
printf("Error (%d) reading page %08lx\n", i, off);
free(datbuf);
free(oobbuf);
return 1;
}
printf("Page %08lx dump:\n", off);
i = nand->writesize >> 4;
p = datbuf;
while (i--) {
if (!only_oob)
printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
" %02x %02x %02x %02x %02x %02x %02x %02x\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
p[8], p[9], p[10], p[11], p[12], p[13], p[14],
p[15]);
p += 16;
}
puts("OOB:\n");
i = nand->oobsize >> 3;
while (i--) {
printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
p += 8;
}
free(datbuf);
free(oobbuf);
return 0;
}
/* ------------------------------------------------------------------------- */
static inline int str2long(char *p, ulong *num)
{
char *endptr;
*num = simple_strtoul(p, &endptr, 16);
return (*p != '\0' && *endptr == '\0') ? 1 : 0;
}
static int
arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, size_t *size)
{
int idx = nand_curr_device;
#if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
struct mtd_device *dev;
struct part_info *part;
u8 pnum;
if (argc >= 1 && !(str2long(argv[0], off))) {
if ((mtdparts_init() == 0) &&
(find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) {
if (dev->id->type != MTD_DEV_TYPE_NAND) {
puts("not a NAND device\n");
return -1;
}
*off = part->offset;
if (argc >= 2) {
if (!(str2long(argv[1], (ulong *)size))) {
printf("'%s' is not a number\n", argv[1]);
return -1;
}
if (*size > part->size)
*size = part->size;
} else {
*size = part->size;
}
idx = dev->id->num;
*nand = nand_info[idx];
goto out;
}
}
#endif
if (argc >= 1) {
if (!(str2long(argv[0], off))) {
printf("'%s' is not a number\n", argv[0]);
return -1;
}
} else {
*off = 0;
}
if (argc >= 2) {
if (!(str2long(argv[1], (ulong *)size))) {
printf("'%s' is not a number\n", argv[1]);
return -1;
}
} else {
*size = nand->size - *off;
}
#if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
out:
#endif
printf("device %d ", idx);
if (*size == nand->size)
puts("whole chip\n");
else
printf("offset 0x%lx, size 0x%zx\n", *off, *size);
return 0;
}
#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
static void print_status(ulong start, ulong end, ulong erasesize, int status)
{
printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
start,
end - 1,
(end - start) / erasesize,
((status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
((status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
((status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
}
static void do_nand_status(nand_info_t *nand)
{
ulong block_start = 0;
ulong off;
int last_status = -1;
struct nand_chip *nand_chip = nand->priv;
/* check the WP bit */
nand_chip->cmdfunc(nand, NAND_CMD_STATUS, -1, -1);
printf("device is %swrite protected\n",
(nand_chip->read_byte(nand) & 0x80 ?
"NOT " : ""));
for (off = 0; off < nand->size; off += nand->erasesize) {
int s = nand_get_lock_status(nand, off);
/* print message only if status has changed */
if (s != last_status && off != 0) {
print_status(block_start, off, nand->erasesize,
last_status);
block_start = off;
}
last_status = s;
}
/* Print the last block info */
print_status(block_start, off, nand->erasesize, last_status);
}
#endif
int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int i, dev, ret = 0;
ulong addr, off;
size_t size;
char *cmd, *s;
nand_info_t *nand;
#ifdef CONFIG_SYS_NAND_QUIET
int quiet = CONFIG_SYS_NAND_QUIET;
#else
int quiet = 0;
#endif
const char *quiet_str = getenv("quiet");
/* at least two arguments please */
if (argc < 2)
goto usage;
if (quiet_str)
quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
cmd = argv[1];
if (strcmp(cmd, "info") == 0) {
putc('\n');
for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
if (nand_info[i].name)
printf("Device %d: %s, sector size %u KiB\n",
i, nand_info[i].name,
nand_info[i].erasesize >> 10);
}
return 0;
}
if (strcmp(cmd, "device") == 0) {
if (argc < 3) {
if ((nand_curr_device < 0) ||
(nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE))
puts("\nno devices available\n");
else
printf("\nDevice %d: %s\n", nand_curr_device,
nand_info[nand_curr_device].name);
return 0;
}
dev = (int)simple_strtoul(argv[2], NULL, 10);
if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[dev].name) {
puts("No such device\n");
return 1;
}
printf("Device %d: %s", dev, nand_info[dev].name);
puts("... is now current device\n");
nand_curr_device = dev;
#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
/*
* Select the chip in the board/cpu specific driver
*/
board_nand_select_device(nand_info[dev].priv, dev);
#endif
return 0;
}
if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
strncmp(cmd, "dump", 4) != 0 &&
strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
strcmp(cmd, "biterr") != 0 &&
strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
goto usage;
/* the following commands operate on the current device */
if (nand_curr_device < 0 || nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE ||
!nand_info[nand_curr_device].name) {
puts("\nno devices available\n");
return 1;
}
nand = &nand_info[nand_curr_device];
if (strcmp(cmd, "bad") == 0) {
long long lloff,llsize=nand->size;
printf("\nDevice %d bad blocks:\n", nand_curr_device);
for (lloff = 0; lloff < llsize; lloff += nand->erasesize)
{
off += nand->erasesize;
if (nand_block_isbad(nand, off))
printf(" %08lx\n", off);
}
return 0;
}
/*
* Syntax is:
* 0 1 2 3 4
* nand erase [clean] [off size]
*/
if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
nand_erase_options_t opts;
/* "clean" at index 2 means request to write cleanmarker */
int clean = argc > 2 && !strcmp("clean", argv[2]);
int o = clean ? 3 : 2;
int scrub = !strcmp(cmd, "scrub");
printf("\nNAND %s: ", scrub ? "scrub" : "erase");
/* skip first two or three arguments, look for offset and size */
if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
return 1;
memset(&opts, 0, sizeof(opts));
opts.offset = off;
opts.length = size;
opts.jffs2 = clean;
opts.quiet = quiet;
if (scrub) {
puts("Warning: "
"scrub option will erase all factory set "
"bad blocks!\n"
" "
"There is no reliable way to recover them.\n"
" "
"Use this command only for testing purposes "
"if you\n"
" "
"are sure of what you are doing!\n"
"\nReally scrub this NAND flash? <y/N>\n");
if (getc() == 'y' && getc() == '\r') {
opts.scrub = 1;
} else {
puts("scrub aborted\n");
return -1;
}
}
ret = nand_erase_opts(nand, &opts);
printf("%s\n", ret ? "ERROR" : "OK");
return ret == 0 ? 0 : 1;
}
if (strncmp(cmd, "dump", 4) == 0) {
if (argc < 3)
goto usage;
s = strchr(cmd, '.');
off = (int)simple_strtoul(argv[2], NULL, 16);
if (s != NULL && strcmp(s, ".oob") == 0)
ret = nand_dump(nand, off, 1);
else
ret = nand_dump(nand, off, 0);
return ret == 0 ? 1 : 0;
}
if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
int read;
if (argc < 4)
goto usage;
addr = (ulong)simple_strtoul(argv[2], NULL, 16);
read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
printf("\nNAND %s: ", read ? "read" : "write");
if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
return 1;
s = strchr(cmd, '.');
if (!s || !strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))
{
if (read)
ret = nand_read_skip_bad(nand, off, &size,
(u_char *)addr);
else
ret = nand_write_skip_bad(nand, off, &size,
(u_char *)addr);
}
else if (s != NULL && !strcmp(s, ".oob")) {
/* out-of-band data */
mtd_oob_ops_t ops = {
.oobbuf = (u8 *)addr,
.ooblen = size,
.mode = MTD_OOB_RAW
};
if (read)
ret = nand->read_oob(nand, off, &ops);
else
ret = nand->write_oob(nand, off, &ops);
} else {
printf("Unknown nand command suffix '%s'.\n", s);
return 1;
}
printf(" %zu bytes %s: %s\n", size,
read ? "read" : "written", ret ? "ERROR" : "OK");
return ret == 0 ? 0 : 1;
}
if (strcmp(cmd, "markbad") == 0) {
addr = (ulong)simple_strtoul(argv[2], NULL, 16);
int ret = nand->block_markbad(nand, addr);
if (ret == 0) {
printf("block 0x%08lx successfully marked as bad\n",
(ulong) addr);
return 0;
} else {
printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
(ulong) addr, ret);
}
return 1;
}
if (strcmp(cmd, "biterr") == 0) {
/* todo */
return 1;
}
#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
if (strcmp(cmd, "lock") == 0) {
int tight = 0;
int status = 0;
if (argc == 3) {
if (!strcmp("tight", argv[2]))
tight = 1;
if (!strcmp("status", argv[2]))
status = 1;
}
if (status) {
do_nand_status(nand);
} else {
if (!nand_lock(nand, tight)) {
puts("NAND flash successfully locked\n");
} else {
puts("Error locking NAND flash\n");
return 1;
}
}
return 0;
}
if (strcmp(cmd, "unlock") == 0) {
if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
return 1;
if (!nand_unlock(nand, off, size)) {
puts("NAND flash successfully unlocked\n");
} else {
puts("Error unlocking NAND flash, "
"write and erase will probably fail\n");
return 1;
}
return 0;
}
#endif
usage:
cmd_usage(cmdtp);
return 1;
}
//cmd_tbl_s
U_BOOT_CMD(nand, 5, 1, do_nand,
"NAND sub-system",
"info - show available NAND devices\n"
"nand device [dev] - show or set current device\n"
"nand read - addr off|partition size\n"
"nand write - addr off|partition size\n"
" read/write 'size' bytes starting at offset 'off'\n"
" to/from memory address 'addr', skipping bad blocks.\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 dump[.oob] off - dump page\n"
"nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
"nand markbad off - mark bad block at offset (UNSAFE)\n"
"nand biterr off - make a bit error at offset (UNSAFE)\n"
#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
"nand lock [tight] [status]\n"
" bring nand to lock state or display locked pages\n"
"nand unlock [offset] [size] - unlock section\n"
#endif
);
static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
ulong offset, ulong addr, char *cmd)
{
int r;
char *ep, *s;
size_t cnt;
image_header_t *hdr;
#if defined(CONFIG_FIT)
const void *fit_hdr = NULL;
#endif
s = strchr(cmd, '.');
if (s != NULL &&
(strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
printf("Unknown nand load suffix '%s'\n", s);
show_boot_progress(-53);
return 1;
}
printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
cnt = nand->writesize;
r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
if (r) {
puts("** Read error\n");
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;
show_boot_progress (57);
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 (-57);
puts ("** Unknown image type\n");
return 1;
}
show_boot_progress (57);
r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr);
if (r) {
puts("** Read error\n");
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] = cmd;
local_args[1] = NULL;
printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
do_bootm(cmdtp, 0, 1, local_args);
return 1;
}
return 0;
}
int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
char *boot_device = NULL;
int idx;
ulong addr, offset = 0;
#if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
struct mtd_device *dev;
struct part_info *part;
u8 pnum;
if (argc >= 2) {
char *p = (argc == 2) ? argv[1] : argv[2];
if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
(find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
if (dev->id->type != MTD_DEV_TYPE_NAND) {
puts("Not a NAND device\n");
return 1;
}
if (argc > 3)
goto usage;
if (argc == 3)
addr = simple_strtoul(argv[1], NULL, 16);
else
addr = CONFIG_SYS_LOAD_ADDR;
return nand_load_image(cmdtp, &nand_info[dev->id->num],
part->offset, addr, argv[0]);
}
}
#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:
#if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
usage:
#endif
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);
idx = simple_strtoul(boot_device, NULL, 16);
if (idx < 0 || idx >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[idx].name) {
printf("\n** Device %d not available\n", idx);
show_boot_progress(-55);
return 1;
}
show_boot_progress(55);
return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
}
U_BOOT_CMD(nboot, 4, 1, do_nandboot,
"boot from NAND device",
"[partition] | [[[loadAddr] dev] offset]\n");
#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\n"
);
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\n"
);
#endif
#endif /* CONFIG_NAND_LEGACY */
