summaryrefslogtreecommitdiff
path: root/common/cmd_nand.c
diff options
context:
space:
mode:
Diffstat (limited to 'common/cmd_nand.c')
-rw-r--r--common/cmd_nand.c973
1 files changed, 0 insertions, 973 deletions
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
deleted file mode 100644
index a6b67e2..0000000
--- a/common/cmd_nand.c
+++ /dev/null
@@ -1,973 +0,0 @@
-/*
- * 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]"
-);