/* * 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) || defined(CONFIG_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_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_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_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_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_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) || 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[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 */