| /* |
| * Driver for NAND support, Rick Bronson |
| * borrowed heavily from: |
| * (c) 1999 Machine Vision Holdings, Inc. |
| * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org> |
| * |
| * Ported 'dynenv' to 'nand env.oob' command |
| * (C) 2010 Nanometrics, Inc. |
| * 'dynenv' -- Dynamic environment offset in NAND OOB |
| * (C) Copyright 2006-2007 OpenMoko, Inc. |
| * Added 16-bit nand support |
| * (C) 2004 Texas Instruments |
| * |
| * Copyright 2010, 2012 Freescale Semiconductor |
| * The portions of this file whose copyright is held by Freescale and which |
| * are not considered a derived work of GPL v2-only code may be distributed |
| * and/or modified under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of the |
| * License, or (at your option) any later version. |
| */ |
| |
| #include <common.h> |
| #include <linux/mtd/mtd.h> |
| #include <command.h> |
| #include <watchdog.h> |
| #include <malloc.h> |
| #include <asm/byteorder.h> |
| #include <jffs2/jffs2.h> |
| #include <nand.h> |
| #include <bootstage.h> |
| #include <config.h> |
| |
| |
| #if defined(CONFIG_CMD_MTDPARTS) |
| |
| /* partition 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 repeat) |
| { |
| int i; |
| u_char *datbuf, *oobbuf, *p; |
| static loff_t last; |
| |
| if (repeat) |
| off = last + nand->writesize; |
| |
| last = off; |
| |
| datbuf = malloc(nand->writesize); |
| 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; |
| 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; |
| p = oobbuf; |
| 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 int set_dev(int dev) |
| { |
| if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || |
| !nand_info[dev].name) { |
| puts("No such device\n"); |
| return -1; |
| } |
| |
| if (nand_curr_device == dev) |
| return 0; |
| |
| 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 |
| board_nand_select_device(nand_info[dev].priv, dev); |
| #endif |
| |
| return 0; |
| } |
| |
| static inline int str2off(const char *p, loff_t *num) |
| { |
| char *endptr; |
| |
| *num = simple_strtoull(p, &endptr, 16); |
| return *p != '\0' && *endptr == '\0'; |
| } |
| |
| static inline int str2long(const char *p, ulong *num) |
| { |
| char *endptr; |
| |
| *num = simple_strtoul(p, &endptr, 16); |
| return *p != '\0' && *endptr == '\0'; |
| } |
| |
| static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size) |
| { |
| #ifdef CONFIG_CMD_MTDPARTS |
| struct mtd_device *dev; |
| struct part_info *part; |
| u8 pnum; |
| int ret; |
| |
| ret = mtdparts_init(); |
| if (ret) |
| return ret; |
| |
| ret = find_dev_and_part(partname, &dev, &pnum, &part); |
| if (ret) |
| return ret; |
| |
| if (dev->id->type != MTD_DEV_TYPE_NAND) { |
| puts("not a NAND device\n"); |
| return -1; |
| } |
| |
| *off = part->offset; |
| *size = part->size; |
| *idx = dev->id->num; |
| |
| ret = set_dev(*idx); |
| if (ret) |
| return ret; |
| |
| return 0; |
| #else |
| puts("offset is not a number\n"); |
| return -1; |
| #endif |
| } |
| |
| static int arg_off(const char *arg, int *idx, loff_t *off, loff_t *maxsize) |
| { |
| if (!str2off(arg, off)) |
| return get_part(arg, idx, off, maxsize); |
| |
| if (*off >= nand_info[*idx].size) { |
| puts("Offset exceeds device limit\n"); |
| return -1; |
| } |
| |
| *maxsize = nand_info[*idx].size - *off; |
| return 0; |
| } |
| |
| static int arg_off_size(int argc, char *const argv[], int *idx, |
| loff_t *off, loff_t *size) |
| { |
| int ret; |
| loff_t maxsize = 0; |
| |
| if (argc == 0) { |
| *off = 0; |
| *size = nand_info[*idx].size; |
| goto print; |
| } |
| |
| ret = arg_off(argv[0], idx, off, &maxsize); |
| if (ret) |
| return ret; |
| |
| if (argc == 1) { |
| *size = maxsize; |
| goto print; |
| } |
| |
| if (!str2off(argv[1], size)) { |
| printf("'%s' is not a number\n", argv[1]); |
| return -1; |
| } |
| |
| if (*size > maxsize) { |
| puts("Size exceeds partition or device limit\n"); |
| return -1; |
| } |
| |
| print: |
| printf("device %d ", *idx); |
| if (*size == nand_info[*idx].size) |
| puts("whole chip\n"); |
| else |
| printf("offset 0x%llx, size 0x%llx\n", |
| (unsigned long long)*off, (unsigned long long)*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 |
| |
| #ifdef CONFIG_ENV_OFFSET_OOB |
| unsigned long nand_env_oob_offset; |
| |
| int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[]) |
| { |
| int ret; |
| uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)]; |
| nand_info_t *nand = &nand_info[0]; |
| char *cmd = argv[1]; |
| |
| if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !nand->name) { |
| puts("no devices available\n"); |
| return 1; |
| } |
| |
| set_dev(0); |
| |
| if (!strcmp(cmd, "get")) { |
| ret = get_nand_env_oob(nand, &nand_env_oob_offset); |
| if (ret) |
| return 1; |
| |
| printf("0x%08lx\n", nand_env_oob_offset); |
| } else if (!strcmp(cmd, "set")) { |
| loff_t addr; |
| loff_t maxsize; |
| struct mtd_oob_ops ops; |
| int idx = 0; |
| |
| if (argc < 3) |
| goto usage; |
| |
| if (arg_off(argv[2], &idx, &addr, &maxsize)) { |
| puts("Offset or partition name expected\n"); |
| return 1; |
| } |
| |
| if (idx != 0) { |
| puts("Partition not on first NAND device\n"); |
| return 1; |
| } |
| |
| if (nand->oobavail < ENV_OFFSET_SIZE) { |
| printf("Insufficient available OOB bytes:\n" |
| "%d OOB bytes available but %d required for " |
| "env.oob support\n", |
| nand->oobavail, ENV_OFFSET_SIZE); |
| return 1; |
| } |
| |
| if ((addr & (nand->erasesize - 1)) != 0) { |
| printf("Environment offset must be block-aligned\n"); |
| return 1; |
| } |
| |
| ops.datbuf = NULL; |
| ops.mode = MTD_OOB_AUTO; |
| ops.ooboffs = 0; |
| ops.ooblen = ENV_OFFSET_SIZE; |
| ops.oobbuf = (void *) oob_buf; |
| |
| oob_buf[0] = ENV_OOB_MARKER; |
| oob_buf[1] = addr / nand->erasesize; |
| |
| ret = nand->write_oob(nand, ENV_OFFSET_SIZE, &ops); |
| if (ret) { |
| printf("Error writing OOB block 0\n"); |
| return ret; |
| } |
| |
| ret = get_nand_env_oob(nand, &nand_env_oob_offset); |
| if (ret) { |
| printf("Error reading env offset in OOB\n"); |
| return ret; |
| } |
| |
| if (addr != nand_env_oob_offset) { |
| printf("Verification of env offset in OOB failed: " |
| "0x%08llx expected but got 0x%08lx\n", |
| (unsigned long long)addr, nand_env_oob_offset); |
| return 1; |
| } |
| } else { |
| goto usage; |
| } |
| |
| return ret; |
| |
| usage: |
| return CMD_RET_USAGE; |
| } |
| |
| #endif |
| |
| static void nand_print_and_set_info(int idx) |
| { |
| nand_info_t *nand = &nand_info[idx]; |
| struct nand_chip *chip = nand->priv; |
| const int bufsz = 32; |
| char buf[bufsz]; |
| |
| printf("Device %d: ", idx); |
| if (chip->numchips > 1) |
| printf("%dx ", chip->numchips); |
| printf("%s, sector size %u KiB\n", |
| nand->name, nand->erasesize >> 10); |
| printf(" Page size %8d b\n", nand->writesize); |
| printf(" OOB size %8d b\n", nand->oobsize); |
| printf(" Erase size %8d b\n", nand->erasesize); |
| |
| /* Set geometry info */ |
| sprintf(buf, "%x", nand->writesize); |
| setenv("nand_writesize", buf); |
| |
| sprintf(buf, "%x", nand->oobsize); |
| setenv("nand_oobsize", buf); |
| |
| sprintf(buf, "%x", nand->erasesize); |
| setenv("nand_erasesize", buf); |
| } |
| |
| static int raw_access(nand_info_t *nand, ulong addr, loff_t off, ulong count, |
| int read) |
| { |
| int ret = 0; |
| |
| while (count--) { |
| /* Raw access */ |
| mtd_oob_ops_t ops = { |
| .datbuf = (u8 *)addr, |
| .oobbuf = ((u8 *)addr) + nand->writesize, |
| .len = nand->writesize, |
| .ooblen = nand->oobsize, |
| .mode = MTD_OOB_RAW |
| }; |
| |
| if (read) |
| ret = nand->read_oob(nand, off, &ops); |
| else |
| ret = nand->write_oob(nand, off, &ops); |
| |
| if (ret) { |
| printf("%s: error at offset %llx, ret %d\n", |
| __func__, (long long)off, ret); |
| break; |
| } |
| |
| addr += nand->writesize + nand->oobsize; |
| off += nand->writesize; |
| } |
| |
| return ret; |
| } |
| |
| int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
| { |
| int i, ret = 0; |
| ulong addr; |
| loff_t off, 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"); |
| int dev = nand_curr_device; |
| int repeat = flag & CMD_FLAG_REPEAT; |
| |
| /* at least two arguments please */ |
| if (argc < 2) |
| goto usage; |
| |
| if (quiet_str) |
| quiet = simple_strtoul(quiet_str, NULL, 0) != 0; |
| |
| cmd = argv[1]; |
| |
| /* Only "dump" is repeatable. */ |
| if (repeat && strcmp(cmd, "dump")) |
| return 0; |
| |
| if (strcmp(cmd, "info") == 0) { |
| |
| putc('\n'); |
| for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) { |
| if (nand_info[i].name) |
| nand_print_and_set_info(i); |
| } |
| return 0; |
| } |
| |
| if (strcmp(cmd, "device") == 0) { |
| if (argc < 3) { |
| putc('\n'); |
| if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE) |
| puts("no devices available\n"); |
| else |
| nand_print_and_set_info(dev); |
| return 0; |
| } |
| |
| dev = (int)simple_strtoul(argv[2], NULL, 10); |
| set_dev(dev); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_ENV_OFFSET_OOB |
| /* this command operates only on the first nand device */ |
| if (strcmp(cmd, "env.oob") == 0) |
| return do_nand_env_oob(cmdtp, argc - 1, argv + 1); |
| #endif |
| |
| /* The following commands operate on the current device, unless |
| * overridden by a partition specifier. Note that if somehow the |
| * current device is invalid, it will have to be changed to a valid |
| * one before these commands can run, even if a partition specifier |
| * for another device is to be used. |
| */ |
| if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || |
| !nand_info[dev].name) { |
| puts("\nno devices available\n"); |
| return 1; |
| } |
| nand = &nand_info[dev]; |
| |
| if (strcmp(cmd, "bad") == 0) { |
| printf("\nDevice %d bad blocks:\n", dev); |
| for (off = 0; off < nand->size; off += nand->erasesize) |
| if (nand_block_isbad(nand, off)) |
| printf(" %08llx\n", (unsigned long long)off); |
| return 0; |
| } |
| |
| /* |
| * Syntax is: |
| * 0 1 2 3 4 |
| * nand erase [clean] [off size] |
| */ |
| if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) { |
| nand_erase_options_t opts; |
| /* "clean" at index 2 means request to write cleanmarker */ |
| int clean = argc > 2 && !strcmp("clean", argv[2]); |
| int scrub_yes = argc > 2 && !strcmp("-y", argv[2]); |
| int o = (clean || scrub_yes) ? 3 : 2; |
| int scrub = !strncmp(cmd, "scrub", 5); |
| int spread = 0; |
| int args = 2; |
| const char *scrub_warn = |
| "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 (cmd[5] != 0) { |
| if (!strcmp(&cmd[5], ".spread")) { |
| spread = 1; |
| } else if (!strcmp(&cmd[5], ".part")) { |
| args = 1; |
| } else if (!strcmp(&cmd[5], ".chip")) { |
| args = 0; |
| } else { |
| goto usage; |
| } |
| } |
| |
| /* |
| * Don't allow missing arguments to cause full chip/partition |
| * erases -- easy to do accidentally, e.g. with a misspelled |
| * variable name. |
| */ |
| if (argc != o + args) |
| goto usage; |
| |
| printf("\nNAND %s: ", cmd); |
| /* skip first two or three arguments, look for offset and size */ |
| if (arg_off_size(argc - o, argv + o, &dev, &off, &size) != 0) |
| return 1; |
| |
| nand = &nand_info[dev]; |
| |
| memset(&opts, 0, sizeof(opts)); |
| opts.offset = off; |
| opts.length = size; |
| opts.jffs2 = clean; |
| opts.quiet = quiet; |
| opts.spread = spread; |
| |
| if (scrub) { |
| if (!scrub_yes) |
| puts(scrub_warn); |
| |
| if (scrub_yes) |
| opts.scrub = 1; |
| else if (getc() == 'y') { |
| puts("y"); |
| if (getc() == '\r') |
| opts.scrub = 1; |
| else { |
| puts("scrub aborted\n"); |
| return -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; |
| |
| off = (int)simple_strtoul(argv[2], NULL, 16); |
| ret = nand_dump(nand, off, !strcmp(&cmd[4], ".oob"), repeat); |
| |
| return ret == 0 ? 1 : 0; |
| } |
| |
| if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { |
| size_t rwsize; |
| ulong pagecount = 1; |
| int read; |
| int raw; |
| |
| 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"); |
| |
| nand = &nand_info[dev]; |
| |
| s = strchr(cmd, '.'); |
| |
| if (s && !strcmp(s, ".raw")) { |
| printf("\n .raw \n"); |
| raw = 1; |
| |
| if (arg_off(argv[3], &dev, &off, &size)) |
| return 1; |
| |
| if (argc > 4 && !str2long(argv[4], &pagecount)) { |
| printf("'%s' is not a number\n", argv[4]); |
| return 1; |
| } |
| |
| if (pagecount * nand->writesize > size) { |
| puts("Size exceeds partition or device limit\n"); |
| return -1; |
| } |
| |
| rwsize = pagecount * (nand->writesize + nand->oobsize); |
| } else { |
| if (arg_off_size(argc - 3, argv + 3, &dev, |
| &off, &size) != 0) |
| return 1; |
| |
| rwsize = size; |
| } |
| |
| if (!s || !strcmp(s, ".jffs2") || |
| !strcmp(s, ".e") || !strcmp(s, ".i")) { |
| if (read) |
| ret = nand_read_skip_bad(nand, off, &rwsize, |
| (u_char *)addr); |
| else |
| ret = nand_write_skip_bad(nand, off, &rwsize, |
| (u_char *)addr, 0); |
| #ifdef CONFIG_CMD_NAND_TRIMFFS |
| } else if (!strcmp(s, ".trimffs")) { |
| if (read) { |
| printf("Unknown nand command suffix '%s'\n", s); |
| return 1; |
| } |
| ret = nand_write_skip_bad(nand, off, &rwsize, |
| (u_char *)addr, |
| WITH_DROP_FFS); |
| #endif |
| #ifdef CONFIG_CMD_NAND_YAFFS |
| } else if (!strcmp(s, ".yaffs")) { |
| if (read) { |
| printf("Unknown nand command suffix '%s'.\n", s); |
| return 1; |
| } |
| ret = nand_write_skip_bad(nand, off, &rwsize, |
| (u_char *)addr, |
| WITH_INLINE_OOB); |
| #endif |
| } else if (!strcmp(s, ".oob")) { |
| /* out-of-band data */ |
| mtd_oob_ops_t ops = { |
| .oobbuf = (u8 *)addr, |
| .ooblen = rwsize, |
| .mode = MTD_OOB_RAW |
| }; |
| |
| if (read) |
| ret = nand->read_oob(nand, off, &ops); |
| else |
| ret = nand->write_oob(nand, off, &ops); |
| } else if (raw) { |
| ret = raw_access(nand, addr, off, pagecount, read); |
| } else { |
| printf("Unknown nand command suffix '%s'.\n", s); |
| return 1; |
| } |
| |
| printf(" %d bytes %s: %s\n", rwsize, |
| read ? "read" : "written", ret ? "ERROR" : "OK"); |
| |
| return ret == 0 ? 0 : 1; |
| } |
| |
| if (strcmp(cmd, "markbad") == 0) { |
| argc -= 2; |
| argv += 2; |
| |
| if (argc <= 0) |
| goto usage; |
| |
| while (argc > 0) { |
| addr = simple_strtoul(*argv, NULL, 16); |
| |
| if (nand->block_markbad(nand, addr)) { |
| printf("block 0x%08lx NOT marked " |
| "as bad! ERROR %d\n", |
| addr, ret); |
| ret = 1; |
| } else { |
| printf("block 0x%08lx successfully " |
| "marked as bad\n", |
| addr); |
| } |
| --argc; |
| ++argv; |
| } |
| return ret; |
| } |
| |
| 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, &dev, &off, &size) < 0) |
| return 1; |
| |
| if (!nand_unlock(&nand_info[dev], 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: |
| return CMD_RET_USAGE; |
| } |
| |
| U_BOOT_CMD( |
| nand, CONFIG_SYS_MAXARGS, 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 read.raw - addr off|partition [count]\n" |
| "nand write.raw - addr off|partition [count]\n" |
| " Use read.raw/write.raw to avoid ECC and access the flash as-is.\n" |
| #ifdef CONFIG_CMD_NAND_TRIMFFS |
| "nand write.trimffs - addr off|partition size\n" |
| " write 'size' bytes starting at offset 'off' from memory address\n" |
| " 'addr', skipping bad blocks and dropping any pages at the end\n" |
| " of eraseblocks that contain only 0xFF\n" |
| #endif |
| #ifdef CONFIG_CMD_NAND_YAFFS |
| "nand write.yaffs - addr off|partition size\n" |
| " write 'size' bytes starting at offset 'off' with yaffs format\n" |
| " from memory address 'addr', skipping bad blocks.\n" |
| #endif |
| "nand erase[.spread] [clean] off size - erase 'size' bytes " |
| "from offset 'off'\n" |
| " With '.spread', erase enough for given file size, otherwise,\n" |
| " 'size' includes skipped bad blocks.\n" |
| "nand erase.part [clean] partition - erase entire mtd partition'\n" |
| "nand erase.chip [clean] - erase entire chip'\n" |
| "nand bad - show bad blocks\n" |
| "nand dump[.oob] off - dump page\n" |
| "nand scrub [-y] off size | scrub.part partition | scrub.chip\n" |
| " really clean NAND erasing bad blocks (UNSAFE)\n" |
| "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n" |
| "nand biterr off - make a bit error at offset (UNSAFE)" |
| #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK |
| "\n" |
| "nand lock [tight] [status]\n" |
| " bring nand to lock state or display locked pages\n" |
| "nand unlock [offset] [size] - unlock section" |
| #endif |
| #ifdef CONFIG_ENV_OFFSET_OOB |
| "\n" |
| "nand env.oob - environment offset in OOB of block 0 of" |
| " first device.\n" |
| "nand env.oob set off|partition - set enviromnent offset\n" |
| "nand env.oob get - get environment offset" |
| #endif |
| ); |
| |
| static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand, |
| ulong offset, ulong addr, char *cmd) |
| { |
| int r; |
| char *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); |
| bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX); |
| 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"); |
| bootstage_error(BOOTSTAGE_ID_NAND_HDR_READ); |
| return 1; |
| } |
| bootstage_mark(BOOTSTAGE_ID_NAND_HDR_READ); |
| |
| switch (genimg_get_format ((void *)addr)) { |
| case IMAGE_FORMAT_LEGACY: |
| hdr = (image_header_t *)addr; |
| |
| bootstage_mark(BOOTSTAGE_ID_NAND_TYPE); |
| 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: |
| bootstage_error(BOOTSTAGE_ID_NAND_TYPE); |
| puts ("** Unknown image type\n"); |
| return 1; |
| } |
| bootstage_mark(BOOTSTAGE_ID_NAND_TYPE); |
| |
| r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr); |
| if (r) { |
| puts("** Read error\n"); |
| bootstage_error(BOOTSTAGE_ID_NAND_READ); |
| return 1; |
| } |
| bootstage_mark(BOOTSTAGE_ID_NAND_READ); |
| |
| #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)) { |
| bootstage_error(BOOTSTAGE_ID_NAND_FIT_READ); |
| puts ("** Bad FIT image format\n"); |
| return 1; |
| } |
| bootstage_mark(BOOTSTAGE_ID_NAND_FIT_READ_OK); |
| fit_print_contents (fit_hdr); |
| } |
| #endif |
| |
| /* Loading ok, update default load address */ |
| |
| load_addr = addr; |
| |
| return bootm_maybe_autostart(cmdtp, cmd); |
| } |
| |
| int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
| { |
| char *boot_device = NULL; |
| int idx; |
| ulong addr, offset = 0; |
| #if defined(CONFIG_CMD_MTDPARTS) |
| 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 |
| |
| bootstage_mark(BOOTSTAGE_ID_NAND_PART); |
| 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_MTDPARTS) |
| usage: |
| #endif |
| bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX); |
| return CMD_RET_USAGE; |
| } |
| bootstage_mark(BOOTSTAGE_ID_NAND_SUFFIX); |
| |
| if (!boot_device) { |
| puts("\n** No boot device **\n"); |
| bootstage_error(BOOTSTAGE_ID_NAND_BOOT_DEVICE); |
| return 1; |
| } |
| bootstage_mark(BOOTSTAGE_ID_NAND_BOOT_DEVICE); |
| |
| 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); |
| bootstage_error(BOOTSTAGE_ID_NAND_AVAILABLE); |
| return 1; |
| } |
| bootstage_mark(BOOTSTAGE_ID_NAND_AVAILABLE); |
| |
| 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]" |
| ); |