diff options
Diffstat (limited to 'cmd/nand.c')
| -rw-r--r-- | cmd/nand.c | 973 |
1 files changed, 973 insertions, 0 deletions
diff --git a/cmd/nand.c b/cmd/nand.c new file mode 100644 index 0000000000..a6b67e29f1 --- /dev/null +++ b/cmd/nand.c @@ -0,0 +1,973 @@ +/* + * 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 <console.h> +#include <watchdog.h> +#include <malloc.h> +#include <asm/byteorder.h> +#include <jffs2/jffs2.h> +#include <nand.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; + int ret = 0; + + if (repeat) + off = last + nand->writesize; + + last = off; + + datbuf = memalign(ARCH_DMA_MINALIGN, nand->writesize); + if (!datbuf) { + puts("No memory for page buffer\n"); + return 1; + } + + oobbuf = memalign(ARCH_DMA_MINALIGN, nand->oobsize); + if (!oobbuf) { + puts("No memory for page buffer\n"); + ret = 1; + goto free_dat; + } + 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_OPS_RAW; + i = mtd_read_oob(nand, addr, &ops); + if (i < 0) { + printf("Error (%d) reading page %08lx\n", i, off); + ret = 1; + goto free_all; + } + printf("Page %08lx dump:\n", off); + + if (!only_oob) { + i = nand->writesize >> 4; + p = datbuf; + + 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; + 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_all: + free(oobbuf); +free_dat: + free(datbuf); + + return ret; +} + +/* ------------------------------------------------------------------------- */ + +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; +} + +#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK +static void print_status(ulong start, ulong end, ulong erasesize, int status) +{ + /* + * Micron NAND flash (e.g. MT29F4G08ABADAH4) BLOCK LOCK READ STATUS is + * not the same as others. Instead of bit 1 being lock, it is + * #lock_tight. To make the driver support either format, ignore bit 1 + * and use only bit 0 and bit 2. + */ + 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_UNLOCK) ? "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; + + /* We don't care about size, or maxsize. */ + if (mtd_arg_off(argv[2], &idx, &addr, &maxsize, &maxsize, + MTD_DEV_TYPE_NAND, nand_info[idx].size)) { + puts("Offset or partition name expected\n"); + return 1; + } + if (set_dev(idx)) { + 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; + + 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); + printf(" subpagesize %8d b\n", chip->subpagesize); + printf(" options 0x%8x\n", chip->options); + printf(" bbt options 0x%8x\n", chip->bbt_options); + + /* Set geometry info */ + setenv_hex("nand_writesize", nand->writesize); + setenv_hex("nand_oobsize", nand->oobsize); + setenv_hex("nand_erasesize", nand->erasesize); +} + +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_OPS_RAW + }; + + if (read) { + ret = mtd_read_oob(nand, off, &ops); + } else { + ret = mtd_write_oob(nand, off, &ops); + if (!ret) + ret = nand_verify_page_oob(nand, &ops, off); + } + + 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; +} + +/* Adjust a chip/partition size down for bad blocks so we don't + * read/write past the end of a chip/partition by accident. + */ +static void adjust_size_for_badblocks(loff_t *size, loff_t offset, int dev) +{ + /* We grab the nand info object here fresh because this is usually + * called after arg_off_size() which can change the value of dev. + */ + nand_info_t *nand = &nand_info[dev]; + loff_t maxoffset = offset + *size; + int badblocks = 0; + + /* count badblocks in NAND from offset to offset + size */ + for (; offset < maxoffset; offset += nand->erasesize) { + if (nand_block_isbad(nand, offset)) + badblocks++; + } + /* adjust size if any bad blocks found */ + if (badblocks) { + *size -= badblocks * nand->erasesize; + printf("size adjusted to 0x%llx (%d bad blocks)\n", + (unsigned long long)*size, badblocks); + } +} + +static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int i, ret = 0; + ulong addr; + loff_t off, size, maxsize; + 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 (mtd_arg_off_size(argc - o, argv + o, &dev, &off, &size, + &maxsize, MTD_DEV_TYPE_NAND, + nand_info[dev].size) != 0) + return 1; + + if (set_dev(dev)) + 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) { + opts.scrub = 1; + } else { + puts(scrub_warn); + if (confirm_yesno()) { + 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; + + 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 = 0; + + 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"); + + s = strchr(cmd, '.'); + + if (s && !strcmp(s, ".raw")) { + raw = 1; + + if (mtd_arg_off(argv[3], &dev, &off, &size, &maxsize, + MTD_DEV_TYPE_NAND, + nand_info[dev].size)) + return 1; + + if (set_dev(dev)) + return 1; + + nand = &nand_info[dev]; + + 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 (mtd_arg_off_size(argc - 3, argv + 3, &dev, &off, + &size, &maxsize, + MTD_DEV_TYPE_NAND, + nand_info[dev].size) != 0) + return 1; + + if (set_dev(dev)) + return 1; + + /* size is unspecified */ + if (argc < 5) + adjust_size_for_badblocks(&size, off, dev); + rwsize = size; + } + + nand = &nand_info[dev]; + + if (!s || !strcmp(s, ".jffs2") || + !strcmp(s, ".e") || !strcmp(s, ".i")) { + if (read) + ret = nand_read_skip_bad(nand, off, &rwsize, + NULL, maxsize, + (u_char *)addr); + else + ret = nand_write_skip_bad(nand, off, &rwsize, + NULL, maxsize, + (u_char *)addr, + WITH_WR_VERIFY); +#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, NULL, + maxsize, (u_char *)addr, + WITH_DROP_FFS | WITH_WR_VERIFY); +#endif + } else if (!strcmp(s, ".oob")) { + /* out-of-band data */ + mtd_oob_ops_t ops = { + .oobbuf = (u8 *)addr, + .ooblen = rwsize, + .mode = MTD_OPS_RAW + }; + + if (read) + ret = mtd_read_oob(nand, off, &ops); + else + ret = mtd_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(" %zu bytes %s: %s\n", rwsize, + read ? "read" : "written", ret ? "ERROR" : "OK"); + + return ret == 0 ? 0 : 1; + } + +#ifdef CONFIG_CMD_NAND_TORTURE + if (strcmp(cmd, "torture") == 0) { + if (argc < 3) + goto usage; + + if (!str2off(argv[2], &off)) { + puts("Offset is not a valid number\n"); + return 1; + } + + printf("\nNAND torture: device %d offset 0x%llx size 0x%x\n", + dev, off, nand->erasesize); + ret = nand_torture(nand, off); + printf(" %s\n", ret ? "Failed" : "Passed"); + + return ret == 0 ? 0 : 1; + } +#endif + + if (strcmp(cmd, "markbad") == 0) { + argc -= 2; + argv += 2; + + if (argc <= 0) + goto usage; + + while (argc > 0) { + addr = simple_strtoul(*argv, NULL, 16); + + if (mtd_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 (strncmp(cmd, "unlock", 5) == 0) { + int allexcept = 0; + + s = strchr(cmd, '.'); + + if (s && !strcmp(s, ".allexcept")) + allexcept = 1; + + if (mtd_arg_off_size(argc - 2, argv + 2, &dev, &off, &size, + &maxsize, MTD_DEV_TYPE_NAND, + nand_info[dev].size) < 0) + return 1; + + if (set_dev(dev)) + return 1; + + if (!nand_unlock(&nand_info[dev], off, size, allexcept)) { + 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; +} + +#ifdef CONFIG_SYS_LONGHELP +static char nand_help_text[] = + "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 + "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" +#ifdef CONFIG_CMD_NAND_TORTURE + "nand torture off - torture block at offset\n" +#endif + "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[.allexcept] [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 + ""; +#endif + +U_BOOT_CMD( + nand, CONFIG_SYS_MAXARGS, 1, do_nand, + "NAND sub-system", nand_help_text +); + +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; +#if defined(CONFIG_IMAGE_FORMAT_LEGACY) + image_header_t *hdr; +#endif +#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, NULL, nand->size, + (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)) { +#if defined(CONFIG_IMAGE_FORMAT_LEGACY) + 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; +#endif +#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, NULL, nand->size, + (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); +} + +static 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]" +); |