Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-27 07:01:24 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/common/cmd_nand.c
Wolfgang Denk dd520bf314 Code cleanup.
2006-11-30 18:02:20 +01:00

990 lines
25 KiB
C
Raw Blame History

/*
* 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 CFG_NAND_LEGACY
/*
*
* New NAND support
*
*/
#include <common.h>
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
#include <command.h>
#include <watchdog.h>
#include <malloc.h>
#include <asm/byteorder.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
#include <jffs2/jffs2.h>
#include <nand.h>
#if (CONFIG_COMMANDS & CFG_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
extern nand_info_t nand_info[]; /* info for NAND chips */
static int nand_dump_oob(nand_info_t *nand, ulong off)
{
return 0;
}
static int nand_dump(nand_info_t *nand, ulong off)
{
int i;
u_char *buf, *p;
buf = malloc(nand->oobblock + nand->oobsize);
if (!buf) {
puts("No memory for page buffer\n");
return 1;
}
off &= ~(nand->oobblock - 1);
i = nand_read_raw(nand, buf, off, nand->oobblock, nand->oobsize);
if (i < 0) {
printf("Error (%d) reading page %08x\n", i, off);
free(buf);
return 1;
}
printf("Page %08x dump:\n", off);
i = nand->oobblock >> 4; p = buf;
while (i--) {
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(buf);
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, ulong *size)
{
int idx = nand_curr_device;
#if (CONFIG_COMMANDS & CFG_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], 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], size))) {
printf("'%s' is not a number\n", argv[1]);
return -1;
}
} else {
*size = nand->size - *off;
}
#if (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
out:
#endif
printf("device %d ", idx);
if (*size == nand->size)
puts("whole chip\n");
else
printf("offset 0x%x, size 0x%x\n", *off, *size);
return 0;
}
int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int i, dev, ret;
ulong addr, off, size;
char *cmd, *s;
nand_info_t *nand;
int quiet = 0;
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 < CFG_MAX_NAND_DEVICE; i++) {
if (nand_info[i].name)
printf("Device %d: %s, sector size %lu 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 >= CFG_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 >= CFG_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 CFG_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 >= CFG_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) {
printf("\nDevice %d bad blocks:\n", nand_curr_device);
for (off = 0; off < nand->size; off += nand->erasesize)
if (nand_block_isbad(nand, off))
printf(" %08x\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_oob(nand, off);
else
ret = nand_dump(nand, off);
return ret == 0 ? 1 : 0;
}
/* read write */
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 != NULL &&
(!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
if (read) {
/* read */
nand_read_options_t opts;
memset(&opts, 0, sizeof(opts));
opts.buffer = (u_char*) addr;
opts.length = size;
opts.offset = off;
opts.quiet = quiet;
ret = nand_read_opts(nand, &opts);
} else {
/* write */
nand_write_options_t opts;
memset(&opts, 0, sizeof(opts));
opts.buffer = (u_char*) addr;
opts.length = size;
opts.offset = off;
/* opts.forcejffs2 = 1; */
opts.pad = 1;
opts.blockalign = 1;
opts.quiet = quiet;
ret = nand_write_opts(nand, &opts);
}
} else {
if (read)
ret = nand_read(nand, off, &size, (u_char *)addr);
else
ret = nand_write(nand, off, &size, (u_char *)addr);
}
printf(" %d 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;
}
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) {
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->oobblock) {
int s = nand_get_lock_status(nand, off);
/* print message only if status has changed
* or at end of chip
*/
if (off == nand->size - nand->oobblock
|| (s != last_status && off != 0)) {
printf("%08x - %08x: %8d pages %s%s%s\n",
block_start,
off-1,
(off-block_start)/nand->oobblock,
((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
}
last_status = s;
}
} 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;
}
usage:
printf("Usage:\n%s\n", cmdtp->usage);
return 1;
}
U_BOOT_CMD(nand, 5, 1, do_nand,
"nand - NAND sub-system\n",
"info - show available NAND devices\n"
"nand device [dev] - show or set current device\n"
"nand read[.jffs2] - addr off|partition size\n"
"nand write[.jffs2] - addr off|partiton 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 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"
"nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
"nand unlock [offset] [size] - unlock section\n");
static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
ulong offset, ulong addr, char *cmd)
{
int r;
char *ep;
ulong cnt;
image_header_t *hdr;
printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
cnt = nand->oobblock;
r = nand_read(nand, offset, &cnt, (u_char *) addr);
if (r) {
puts("** Read error\n");
SHOW_BOOT_PROGRESS(-1);
return 1;
}
hdr = (image_header_t *) addr;
if (ntohl(hdr->ih_magic) != IH_MAGIC) {
printf("\n** Bad Magic Number 0x%x **\n", hdr->ih_magic);
SHOW_BOOT_PROGRESS(-1);
return 1;
}
print_image_hdr(hdr);
cnt = (ntohl(hdr->ih_size) + sizeof (image_header_t));
r = nand_read(nand, offset, &cnt, (u_char *) addr);
if (r) {
puts("** Read error\n");
SHOW_BOOT_PROGRESS(-1);
return 1;
}
/* 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 (CONFIG_COMMANDS & CFG_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[2], NULL, 16);
else
addr = CFG_LOAD_ADDR;
return nand_load_image(cmdtp, &nand_info[dev->id->num],
part->offset, addr, argv[0]);
}
}
#endif
switch (argc) {
case 1:
addr = CFG_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 (CONFIG_COMMANDS & CFG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
usage:
#endif
printf("Usage:\n%s\n", cmdtp->usage);
SHOW_BOOT_PROGRESS(-1);
return 1;
}
if (!boot_device) {
puts("\n** No boot device **\n");
SHOW_BOOT_PROGRESS(-1);
return 1;
}
idx = simple_strtoul(boot_device, NULL, 16);
if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
printf("\n** Device %d not available\n", idx);
SHOW_BOOT_PROGRESS(-1);
return 1;
}
return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
}
U_BOOT_CMD(nboot, 4, 1, do_nandboot,
"nboot - boot from NAND device\n",
"[partition] | [[[loadAddr] dev] offset]\n");
#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
#else /* CFG_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 (CONFIG_COMMANDS & CFG_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[CFG_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:
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
case 2:
if (strcmp (argv[1], "info") == 0) {
int i;
putc ('\n');
for (i = 0; i < CFG_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 >= CFG_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 >= CFG_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;
}
printf ("Usage:\n%s\n", cmdtp->usage);
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 >= CFG_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;
}
printf ("Usage:\n%s\n", cmdtp->usage);
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);
ulong off = simple_strtoul (argv[3], NULL, 16);
ulong size = simple_strtoul (argv[4], NULL, 16);
int cmd = (strncmp (argv[1], "read", 4) == 0) ?
NANDRW_READ : NANDRW_WRITE;
int ret, total;
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, (size_t *) & total,
(u_char *) addr);
} else {
ret = nand_write_oob (nand_dev_desc + curr_device,
off, size, (size_t *) & total,
(u_char *) addr);
}
return ret;
} else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
cmd |= NANDRW_JFFS2; /* skip bad blocks */
else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
if (cmd & NANDRW_READ)
cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
}
#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 CFG_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 /* CFG_NAND_SKIP_BAD_DOT_I */
else if (cmdtail) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
printf ("\nNAND %s: device %d offset %ld, size %ld ...\n",
(cmd & NANDRW_READ) ? "read" : "write",
curr_device, off, size);
ret = nand_legacy_rw (nand_dev_desc + curr_device,
cmd, off, size,
(size_t *) & 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 {
printf ("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
}
return rcode;
}
}
U_BOOT_CMD(
nand, 5, 1, do_nand,
"nand - legacy NAND sub-system\n",
"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;
switch (argc) {
case 1:
addr = CFG_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:
printf ("Usage:\n%s\n", cmdtp->usage);
SHOW_BOOT_PROGRESS (-1);
return 1;
}
if (!boot_device) {
puts ("\n** No boot device **\n");
SHOW_BOOT_PROGRESS (-1);
return 1;
}
dev = simple_strtoul(boot_device, &ep, 16);
if ((dev >= CFG_MAX_NAND_DEVICE) ||
(nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
printf ("\n** Device %d not available\n", dev);
SHOW_BOOT_PROGRESS (-1);
return 1;
}
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 (-1);
return 1;
}
hdr = (image_header_t *)addr;
if (ntohl(hdr->ih_magic) == IH_MAGIC) {
print_image_hdr (hdr);
cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
cnt -= SECTORSIZE;
} else {
printf ("\n** Bad Magic Number 0x%x **\n", ntohl(hdr->ih_magic));
SHOW_BOOT_PROGRESS (-1);
return 1;
}
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 (-1);
return 1;
}
/* 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,
"nboot - boot from NAND device\n",
"loadAddr dev\n"
);
#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
#endif /* CFG_NAND_LEGACY */
Reference in a new issue View git blame Copy permalink