samba.git - Unnamed repository; edit this file 'description' to name the repository.

diff options

Diffstat (limited to 'python')

0 files changed, 0 insertions, 0 deletions

/* * 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) { 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(" %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; } 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(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); /* FIXME: skip bad blocks */ r = nand_read(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 */


context:
space:
mode: