--- /dev/null
+/*
+ * 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>
+
+#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;
+}
+
+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,
+ loff_t *maxsize)
+{
+#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;
+ *maxsize = 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 *size,
+ loff_t *maxsize)
+{
+ if (!str2off(arg, off))
+ return get_part(arg, idx, off, size, maxsize);
+
+ if (*off >= nand_info[*idx].size) {
+ puts("Offset exceeds device limit\n");
+ return -1;
+ }
+
+ *maxsize = nand_info[*idx].size - *off;
+ *size = *maxsize;
+ return 0;
+}
+
+static int arg_off_size(int argc, char *const argv[], int *idx,
+ loff_t *off, loff_t *size, loff_t *maxsize)
+{
+ int ret;
+
+ if (argc == 0) {
+ *off = 0;
+ *size = nand_info[*idx].size;
+ *maxsize = *size;
+ goto print;
+ }
+
+ ret = arg_off(argv[0], idx, off, size, maxsize);
+ if (ret)
+ return ret;
+
+ if (argc == 1)
+ 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)
+{
+ /*
+ * 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 (arg_off(argv[2], &idx, &addr, &maxsize, &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;
+
+ 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 */
+ 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) {
+ 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 (arg_off_size(argc - o, argv + o, &dev, &off, &size,
+ &maxsize) != 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 = 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");
+
+ nand = &nand_info[dev];
+
+ s = strchr(cmd, '.');
+
+ if (s && !strcmp(s, ".raw")) {
+ raw = 1;
+
+ if (arg_off(argv[3], &dev, &off, &size, &maxsize))
+ 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, &maxsize) != 0)
+ return 1;
+
+ /* size is unspecified */
+ if (argc < 5)
+ adjust_size_for_badblocks(&size, off, dev);
+ rwsize = size;
+ }
+
+ 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, 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, NULL,
+ maxsize, (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, NULL,
+ maxsize, (u_char *)addr,
+ WITH_YAFFS_OOB);
+#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 (arg_off_size(argc - 2, argv + 2, &dev, &off, &size,
+ &maxsize) < 0)
+ 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
+#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"
+#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;
+ 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, 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)) {
+ 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, 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]"
+);
Code Review / kvmfornfv.git / blobdiff