| /* |
| * Driver for NAND support, Rick Bronson |
| * borrowed heavily from: |
| * (c) 1999 Machine Vision Holdings, Inc. |
| * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org> |
| * |
| * Added 16-bit nand support |
| * (C) 2004 Texas Instruments |
| */ |
| |
| #include <common.h> |
| |
| |
| #ifndef CFG_NAND_LEGACY |
| /* |
| * |
| * New NAND support |
| * |
| */ |
| #include <common.h> |
| |
| #if defined(CONFIG_CMD_NAND) |
| |
| #include <command.h> |
| #include <watchdog.h> |
| #include <malloc.h> |
| #include <asm/byteorder.h> |
| #include <jffs2/jffs2.h> |
| #include <nand.h> |
| |
| #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE) |
| |
| /* parition handling routines */ |
| int mtdparts_init(void); |
| int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num); |
| int find_dev_and_part(const char *id, struct mtd_device **dev, |
| u8 *part_num, struct part_info **part); |
| #endif |
| |
| static int nand_dump_oob(nand_info_t *nand, ulong off) |
| { |
| return 0; |
| } |
| |
| static int nand_dump(nand_info_t *nand, ulong off) |
| { |
| int i; |
| u_char *buf, *p; |
| |
| buf = malloc(nand->oobblock + nand->oobsize); |
| if (!buf) { |
| puts("No memory for page buffer\n"); |
| return 1; |
| } |
| off &= ~(nand->oobblock - 1); |
| i = nand_read_raw(nand, buf, off, nand->oobblock, nand->oobsize); |
| if (i < 0) { |
| printf("Error (%d) reading page %08x\n", i, off); |
| free(buf); |
| return 1; |
| } |
| printf("Page %08x dump:\n", off); |
| i = nand->oobblock >> 4; p = buf; |
| while (i--) { |
| printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x" |
| " %02x %02x %02x %02x %02x %02x %02x %02x\n", |
| p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], |
| p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]); |
| p += 16; |
| } |
| puts("OOB:\n"); |
| i = nand->oobsize >> 3; |
| while (i--) { |
| printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x\n", |
| p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); |
| p += 8; |
| } |
| free(buf); |
| |
| return 0; |
| } |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| static inline int str2long(char *p, ulong *num) |
| { |
| char *endptr; |
| |
| *num = simple_strtoul(p, &endptr, 16); |
| return (*p != '\0' && *endptr == '\0') ? 1 : 0; |
| } |
| |
| static int |
| arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, size_t *size) |
| { |
| int idx = nand_curr_device; |
| #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE) |
| struct mtd_device *dev; |
| struct part_info *part; |
| u8 pnum; |
| |
| if (argc >= 1 && !(str2long(argv[0], off))) { |
| if ((mtdparts_init() == 0) && |
| (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) { |
| if (dev->id->type != MTD_DEV_TYPE_NAND) { |
| puts("not a NAND device\n"); |
| return -1; |
| } |
| *off = part->offset; |
| if (argc >= 2) { |
| if (!(str2long(argv[1], (ulong *)size))) { |
| printf("'%s' is not a number\n", argv[1]); |
| return -1; |
| } |
| if (*size > part->size) |
| *size = part->size; |
| } else { |
| *size = part->size; |
| } |
| idx = dev->id->num; |
| *nand = nand_info[idx]; |
| goto out; |
| } |
| } |
| #endif |
| |
| if (argc >= 1) { |
| if (!(str2long(argv[0], off))) { |
| printf("'%s' is not a number\n", argv[0]); |
| return -1; |
| } |
| } else { |
| *off = 0; |
| } |
| |
| if (argc >= 2) { |
| if (!(str2long(argv[1], (ulong *)size))) { |
| printf("'%s' is not a number\n", argv[1]); |
| return -1; |
| } |
| } else { |
| *size = nand->size - *off; |
| } |
| |
| #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE) |
| out: |
| #endif |
| printf("device %d ", idx); |
| if (*size == nand->size) |
| puts("whole chip\n"); |
| else |
| printf("offset 0x%x, size 0x%x\n", *off, *size); |
| return 0; |
| } |
| |
| int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
| { |
| int i, dev, ret; |
| ulong addr, off; |
| size_t size; |
| char *cmd, *s; |
| nand_info_t *nand; |
| #ifdef CFG_NAND_QUIET |
| int quiet = CFG_NAND_QUIET; |
| #else |
| int quiet = 0; |
| #endif |
| const char *quiet_str = getenv("quiet"); |
| |
| /* at least two arguments please */ |
| if (argc < 2) |
| goto usage; |
| |
| if (quiet_str) |
| quiet = simple_strtoul(quiet_str, NULL, 0) != 0; |
| |
| cmd = argv[1]; |
| |
| if (strcmp(cmd, "info") == 0) { |
| |
| putc('\n'); |
| for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) { |
| if (nand_info[i].name) |
| printf("Device %d: %s, sector size %lu KiB\n", |
| i, nand_info[i].name, |
| nand_info[i].erasesize >> 10); |
| } |
| return 0; |
| } |
| |
| if (strcmp(cmd, "device") == 0) { |
| |
| if (argc < 3) { |
| if ((nand_curr_device < 0) || |
| (nand_curr_device >= CFG_MAX_NAND_DEVICE)) |
| puts("\nno devices available\n"); |
| else |
| printf("\nDevice %d: %s\n", nand_curr_device, |
| nand_info[nand_curr_device].name); |
| return 0; |
| } |
| dev = (int)simple_strtoul(argv[2], NULL, 10); |
| if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) { |
| puts("No such device\n"); |
| return 1; |
| } |
| printf("Device %d: %s", dev, nand_info[dev].name); |
| puts("... is now current device\n"); |
| nand_curr_device = dev; |
| |
| #ifdef CFG_NAND_SELECT_DEVICE |
| /* |
| * Select the chip in the board/cpu specific driver |
| */ |
| board_nand_select_device(nand_info[dev].priv, dev); |
| #endif |
| |
| return 0; |
| } |
| |
| if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 && |
| strncmp(cmd, "dump", 4) != 0 && |
| strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 && |
| strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 && |
| strcmp(cmd, "biterr") != 0 && |
| strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 ) |
| goto usage; |
| |
| /* the following commands operate on the current device */ |
| if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE || |
| !nand_info[nand_curr_device].name) { |
| puts("\nno devices available\n"); |
| return 1; |
| } |
| nand = &nand_info[nand_curr_device]; |
| |
| if (strcmp(cmd, "bad") == 0) { |
| printf("\nDevice %d bad blocks:\n", nand_curr_device); |
| for (off = 0; off < nand->size; off += nand->erasesize) |
| if (nand_block_isbad(nand, off)) |
| printf(" %08x\n", off); |
| return 0; |
| } |
| |
| /* |
| * Syntax is: |
| * 0 1 2 3 4 |
| * nand erase [clean] [off size] |
| */ |
| if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) { |
| nand_erase_options_t opts; |
| /* "clean" at index 2 means request to write cleanmarker */ |
| int clean = argc > 2 && !strcmp("clean", argv[2]); |
| int o = clean ? 3 : 2; |
| int scrub = !strcmp(cmd, "scrub"); |
| |
| printf("\nNAND %s: ", scrub ? "scrub" : "erase"); |
| /* skip first two or three arguments, look for offset and size */ |
| if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0) |
| return 1; |
| |
| memset(&opts, 0, sizeof(opts)); |
| opts.offset = off; |
| opts.length = size; |
| opts.jffs2 = clean; |
| opts.quiet = quiet; |
| |
| if (scrub) { |
| puts("Warning: " |
| "scrub option will erase all factory set " |
| "bad blocks!\n" |
| " " |
| "There is no reliable way to recover them.\n" |
| " " |
| "Use this command only for testing purposes " |
| "if you\n" |
| " " |
| "are sure of what you are doing!\n" |
| "\nReally scrub this NAND flash? <y/N>\n"); |
| |
| if (getc() == 'y' && getc() == '\r') { |
| opts.scrub = 1; |
| } else { |
| puts("scrub aborted\n"); |
| return -1; |
| } |
| } |
| ret = nand_erase_opts(nand, &opts); |
| printf("%s\n", ret ? "ERROR" : "OK"); |
| |
| return ret == 0 ? 0 : 1; |
| } |
| |
| if (strncmp(cmd, "dump", 4) == 0) { |
| if (argc < 3) |
| goto usage; |
| |
| s = strchr(cmd, '.'); |
| off = (int)simple_strtoul(argv[2], NULL, 16); |
| |
| if (s != NULL && strcmp(s, ".oob") == 0) |
| ret = nand_dump_oob(nand, off); |
| else |
| ret = nand_dump(nand, off); |
| |
| return ret == 0 ? 1 : 0; |
| |
| } |
| |
| /* read write */ |
| if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { |
| int read; |
| |
| if (argc < 4) |
| goto usage; |
| |
| addr = (ulong)simple_strtoul(argv[2], NULL, 16); |
| |
| read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ |
| printf("\nNAND %s: ", read ? "read" : "write"); |
| if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0) |
| return 1; |
| |
| s = strchr(cmd, '.'); |
| if (s != NULL && |
| (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) { |
| if (read) { |
| /* read */ |
| nand_read_options_t opts; |
| memset(&opts, 0, sizeof(opts)); |
| opts.buffer = (u_char*) addr; |
| opts.length = size; |
| opts.offset = off; |
| opts.quiet = quiet; |
| ret = nand_read_opts(nand, &opts); |
| } else { |
| /* write */ |
| nand_write_options_t opts; |
| memset(&opts, 0, sizeof(opts)); |
| opts.buffer = (u_char*) addr; |
| opts.length = size; |
| opts.offset = off; |
| /* opts.forcejffs2 = 1; */ |
| opts.pad = 1; |
| opts.blockalign = 1; |
| opts.quiet = quiet; |
| ret = nand_write_opts(nand, &opts); |
| } |
| } else if (s != NULL && !strcmp(s, ".oob")) { |
| /* read out-of-band data */ |
| if (read) |
| ret = nand->read_oob(nand, off, size, &size, |
| (u_char *) addr); |
| else |
| ret = nand->write_oob(nand, off, size, &size, |
| (u_char *) addr); |
| } else { |
| if (read) |
| ret = nand_read(nand, off, &size, (u_char *)addr); |
| else |
| ret = nand_write(nand, off, &size, (u_char *)addr); |
| } |
| |
| printf(" %d bytes %s: %s\n", size, |
| read ? "read" : "written", ret ? "ERROR" : "OK"); |
| |
| return ret == 0 ? 0 : 1; |
| } |
| |
| if (strcmp(cmd, "markbad") == 0) { |
| addr = (ulong)simple_strtoul(argv[2], NULL, 16); |
| |
| int ret = nand->block_markbad(nand, addr); |
| if (ret == 0) { |
| printf("block 0x%08lx successfully marked as bad\n", |
| (ulong) addr); |
| return 0; |
| } else { |
| printf("block 0x%08lx NOT marked as bad! ERROR %d\n", |
| (ulong) addr, ret); |
| } |
| return 1; |
| } |
| if (strcmp(cmd, "biterr") == 0) { |
| /* todo */ |
| return 1; |
| } |
| |
| if (strcmp(cmd, "lock") == 0) { |
| int tight = 0; |
| int status = 0; |
| if (argc == 3) { |
| if (!strcmp("tight", argv[2])) |
| tight = 1; |
| if (!strcmp("status", argv[2])) |
| status = 1; |
| } |
| |
| if (status) { |
| ulong block_start = 0; |
| ulong off; |
| int last_status = -1; |
| |
| struct nand_chip *nand_chip = nand->priv; |
| /* check the WP bit */ |
| nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1); |
| printf("device is %swrite protected\n", |
| (nand_chip->read_byte(nand) & 0x80 ? |
| "NOT " : "" ) ); |
| |
| for (off = 0; off < nand->size; off += nand->oobblock) { |
| int s = nand_get_lock_status(nand, off); |
| |
| /* print message only if status has changed |
| * or at end of chip |
| */ |
| if (off == nand->size - nand->oobblock |
| || (s != last_status && off != 0)) { |
| |
| printf("%08x - %08x: %8d pages %s%s%s\n", |
| block_start, |
| off-1, |
| (off-block_start)/nand->oobblock, |
| ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""), |
| ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""), |
| ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : "")); |
| } |
| |
| last_status = s; |
| } |
| } else { |
| if (!nand_lock(nand, tight)) { |
| puts("NAND flash successfully locked\n"); |
| } else { |
| puts("Error locking NAND flash\n"); |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| if (strcmp(cmd, "unlock") == 0) { |
| if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0) |
| return 1; |
| |
| if (!nand_unlock(nand, off, size)) { |
| puts("NAND flash successfully unlocked\n"); |
| } else { |
| puts("Error unlocking NAND flash, " |
| "write and erase will probably fail\n"); |
| return 1; |
| } |
| return 0; |
| } |
| |
| usage: |
| printf("Usage:\n%s\n", cmdtp->usage); |
| return 1; |
| } |
| |
| U_BOOT_CMD(nand, 5, 1, do_nand, |
| "nand - NAND sub-system\n", |
| "info - show available NAND devices\n" |
| "nand device [dev] - show or set current device\n" |
| "nand read[.jffs2] - addr off|partition size\n" |
| "nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n" |
| " at offset `off' to/from memory address `addr'\n" |
| "nand erase [clean] [off size] - erase `size' bytes from\n" |
| " offset `off' (entire device if not specified)\n" |
| "nand bad - show bad blocks\n" |
| "nand dump[.oob] off - dump page\n" |
| "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n" |
| "nand markbad off - mark bad block at offset (UNSAFE)\n" |
| "nand biterr off - make a bit error at offset (UNSAFE)\n" |
| "nand lock [tight] [status] - bring nand to lock state or display locked pages\n" |
| "nand unlock [offset] [size] - unlock section\n"); |
| |
| static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand, |
| ulong offset, ulong addr, char *cmd) |
| { |
| int r; |
| char *ep, *s; |
| size_t cnt; |
| image_header_t *hdr; |
| int jffs2 = 0; |
| #if defined(CONFIG_FIT) |
| const void *fit_hdr; |
| #endif |
| |
| s = strchr(cmd, '.'); |
| if (s != NULL && |
| (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) |
| jffs2 = 1; |
| |
| printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset); |
| |
| cnt = nand->oobblock; |
| if (jffs2) { |
| nand_read_options_t opts; |
| memset(&opts, 0, sizeof(opts)); |
| opts.buffer = (u_char*) addr; |
| opts.length = cnt; |
| opts.offset = offset; |
| opts.quiet = 1; |
| r = nand_read_opts(nand, &opts); |
| } else { |
| r = nand_read(nand, offset, &cnt, (u_char *) addr); |
| } |
| |
| if (r) { |
| puts("** Read error\n"); |
| show_boot_progress (-56); |
| return 1; |
| } |
| show_boot_progress (56); |
| |
| switch (genimg_get_format ((void *)addr)) { |
| case IMAGE_FORMAT_LEGACY: |
| hdr = (image_header_t *)addr; |
| |
| show_boot_progress (57); |
| image_print_contents (hdr); |
| |
| cnt = image_get_image_size (hdr); |
| break; |
| #if defined(CONFIG_FIT) |
| case IMAGE_FORMAT_FIT: |
| fit_hdr = (const void *)addr; |
| if (!fit_check_format (fit_hdr)) { |
| show_boot_progress (-150); |
| puts ("** Bad FIT image format\n"); |
| return 1; |
| } |
| show_boot_progress (151); |
| puts ("Fit image detected...\n"); |
| |
| cnt = fit_get_size (fit_hdr); |
| break; |
| #endif |
| default: |
| show_boot_progress (-57); |
| puts ("** Unknown image type\n"); |
| return 1; |
| } |
| |
| if (jffs2) { |
| nand_read_options_t opts; |
| memset(&opts, 0, sizeof(opts)); |
| opts.buffer = (u_char*) addr; |
| opts.length = cnt; |
| opts.offset = offset; |
| opts.quiet = 1; |
| r = nand_read_opts(nand, &opts); |
| } else { |
| r = nand_read(nand, offset, &cnt, (u_char *) addr); |
| } |
| |
| if (r) { |
| puts("** Read error\n"); |
| show_boot_progress (-58); |
| return 1; |
| } |
| show_boot_progress (58); |
| |
| #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) |
| fit_print_contents ((const void *)addr); |
| #endif |
| |
| /* Loading ok, update default load address */ |
| |
| load_addr = addr; |
| |
| /* Check if we should attempt an auto-start */ |
| if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) { |
| char *local_args[2]; |
| extern int do_bootm(cmd_tbl_t *, int, int, char *[]); |
| |
| local_args[0] = cmd; |
| local_args[1] = NULL; |
| |
| printf("Automatic boot of image at addr 0x%08lx ...\n", addr); |
| |
| do_bootm(cmdtp, 0, 1, local_args); |
| return 1; |
| } |
| return 0; |
| } |
| |
| int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
| { |
| char *boot_device = NULL; |
| int idx; |
| ulong addr, offset = 0; |
| #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE) |
| struct mtd_device *dev; |
| struct part_info *part; |
| u8 pnum; |
| |
| if (argc >= 2) { |
| char *p = (argc == 2) ? argv[1] : argv[2]; |
| if (!(str2long(p, &addr)) && (mtdparts_init() == 0) && |
| (find_dev_and_part(p, &dev, &pnum, &part) == 0)) { |
| if (dev->id->type != MTD_DEV_TYPE_NAND) { |
| puts("Not a NAND device\n"); |
| return 1; |
| } |
| if (argc > 3) |
| goto usage; |
| if (argc == 3) |
| addr = simple_strtoul(argv[1], NULL, 16); |
| else |
| addr = CFG_LOAD_ADDR; |
| return nand_load_image(cmdtp, &nand_info[dev->id->num], |
| part->offset, addr, argv[0]); |
| } |
| } |
| #endif |
| |
| show_boot_progress(52); |
| switch (argc) { |
| case 1: |
| addr = CFG_LOAD_ADDR; |
| boot_device = getenv("bootdevice"); |
| break; |
| case 2: |
| addr = simple_strtoul(argv[1], NULL, 16); |
| boot_device = getenv("bootdevice"); |
| break; |
| case 3: |
| addr = simple_strtoul(argv[1], NULL, 16); |
| boot_device = argv[2]; |
| break; |
| case 4: |
| addr = simple_strtoul(argv[1], NULL, 16); |
| boot_device = argv[2]; |
| offset = simple_strtoul(argv[3], NULL, 16); |
| break; |
| default: |
| #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE) |
| usage: |
| #endif |
| printf("Usage:\n%s\n", cmdtp->usage); |
| show_boot_progress(-53); |
| return 1; |
| } |
| |
| show_boot_progress(53); |
| if (!boot_device) { |
| puts("\n** No boot device **\n"); |
| show_boot_progress(-54); |
| return 1; |
| } |
| show_boot_progress(54); |
| |
| idx = simple_strtoul(boot_device, NULL, 16); |
| |
| if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) { |
| printf("\n** Device %d not available\n", idx); |
| show_boot_progress(-55); |
| return 1; |
| } |
| show_boot_progress(55); |
| |
| return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]); |
| } |
| |
| U_BOOT_CMD(nboot, 4, 1, do_nandboot, |
| "nboot - boot from NAND device\n", |
| "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n"); |
| |
| #endif |
| |
| #else /* CFG_NAND_LEGACY */ |
| /* |
| * |
| * Legacy NAND support - to be phased out |
| * |
| */ |
| #include <command.h> |
| #include <malloc.h> |
| #include <asm/io.h> |
| #include <watchdog.h> |
| |
| #ifdef CONFIG_show_boot_progress |
| # include <status_led.h> |
| # define show_boot_progress(arg) show_boot_progress(arg) |
| #else |
| # define show_boot_progress(arg) |
| #endif |
| |
| #if defined(CONFIG_CMD_NAND) |
| #include <linux/mtd/nand_legacy.h> |
| #if 0 |
| #include <linux/mtd/nand_ids.h> |
| #include <jffs2/jffs2.h> |
| #endif |
| |
| #ifdef CONFIG_OMAP1510 |
| void archflashwp(void *archdata, int wp); |
| #endif |
| |
| #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1))) |
| |
| #undef NAND_DEBUG |
| #undef PSYCHO_DEBUG |
| |
| /* ****************** WARNING ********************* |
| * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will |
| * erase (or at least attempt to erase) blocks that are marked |
| * bad. This can be very handy if you are _sure_ that the block |
| * is OK, say because you marked a good block bad to test bad |
| * block handling and you are done testing, or if you have |
| * accidentally marked blocks bad. |
| * |
| * Erasing factory marked bad blocks is a _bad_ idea. If the |
| * erase succeeds there is no reliable way to find them again, |
| * and attempting to program or erase bad blocks can affect |
| * the data in _other_ (good) blocks. |
| */ |
| #define ALLOW_ERASE_BAD_DEBUG 0 |
| |
| #define CONFIG_MTD_NAND_ECC /* enable ECC */ |
| #define CONFIG_MTD_NAND_ECC_JFFS2 |
| |
| /* bits for nand_legacy_rw() `cmd'; or together as needed */ |
| #define NANDRW_READ 0x01 |
| #define NANDRW_WRITE 0x00 |
| #define NANDRW_JFFS2 0x02 |
| #define NANDRW_JFFS2_SKIP 0x04 |
| |
| /* |
| * Imports from nand_legacy.c |
| */ |
| extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE]; |
| extern int curr_device; |
| extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs, |
| size_t len, int clean); |
| extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start, |
| size_t len, size_t *retlen, u_char *buf); |
| extern void nand_print(struct nand_chip *nand); |
| extern void nand_print_bad(struct nand_chip *nand); |
| extern int nand_read_oob(struct nand_chip *nand, size_t ofs, |
| size_t len, size_t *retlen, u_char *buf); |
| extern int nand_write_oob(struct nand_chip *nand, size_t ofs, |
| size_t len, size_t *retlen, const u_char *buf); |
| |
| |
| int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
| { |
| int rcode = 0; |
| |
| switch (argc) { |
| case 0: |
| case 1: |
| printf ("Usage:\n%s\n", cmdtp->usage); |
| return 1; |
| case 2: |
| if (strcmp (argv[1], "info") == 0) { |
| int i; |
| |
| putc ('\n'); |
| |
| for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) { |
| if (nand_dev_desc[i].ChipID == |
| NAND_ChipID_UNKNOWN) |
| continue; /* list only known devices */ |
| printf ("Device %d: ", i); |
| nand_print (&nand_dev_desc[i]); |
| } |
| return 0; |
| |
| } else if (strcmp (argv[1], "device") == 0) { |
| if ((curr_device < 0) |
| || (curr_device >= CFG_MAX_NAND_DEVICE)) { |
| puts ("\nno devices available\n"); |
| return 1; |
| } |
| printf ("\nDevice %d: ", curr_device); |
| nand_print (&nand_dev_desc[curr_device]); |
| return 0; |
| |
| } else if (strcmp (argv[1], "bad") == 0) { |
| if ((curr_device < 0) |
| || (curr_device >= CFG_MAX_NAND_DEVICE)) { |
| puts ("\nno devices available\n"); |
| return 1; |
| } |
| printf ("\nDevice %d bad blocks:\n", curr_device); |
| nand_print_bad (&nand_dev_desc[curr_device]); |
| return 0; |
| |
| } |
| printf ("Usage:\n%s\n", cmdtp->usage); |
| return 1; |
| case 3: |
| if (strcmp (argv[1], "device") == 0) { |
| int dev = (int) simple_strtoul (argv[2], NULL, 10); |
| |
| printf ("\nDevice %d: ", dev); |
| if (dev >= CFG_MAX_NAND_DEVICE) { |
| puts ("unknown device\n"); |
| return 1; |
| } |
| nand_print (&nand_dev_desc[dev]); |
| /*nand_print (dev); */ |
| |
| if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) { |
| return 1; |
| } |
| |
| curr_device = dev; |
| |
| puts ("... is now current device\n"); |
| |
| return 0; |
| } else if (strcmp (argv[1], "erase") == 0 |
| && strcmp (argv[2], "clean") == 0) { |
| struct nand_chip *nand = &nand_dev_desc[curr_device]; |
| ulong off = 0; |
| ulong size = nand->totlen; |
| int ret; |
| |
| printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size); |
| |
| ret = nand_legacy_erase (nand, off, size, 1); |
| |
| printf ("%s\n", ret ? "ERROR" : "OK"); |
| |
| return ret; |
| } |
| |
| printf ("Usage:\n%s\n", cmdtp->usage); |
| return 1; |
| default: |
| /* at least 4 args */ |
| |
| if (strncmp (argv[1], "read", 4) == 0 || |
| strncmp (argv[1], "write", 5) == 0) { |
| ulong addr = simple_strtoul (argv[2], NULL, 16); |
| off_t off = simple_strtoul (argv[3], NULL, 16); |
| size_t size = simple_strtoul (argv[4], NULL, 16); |
| int cmd = (strncmp (argv[1], "read", 4) == 0) ? |
| NANDRW_READ : NANDRW_WRITE; |
| size_t total; |
| int ret; |
| char *cmdtail = strchr (argv[1], '.'); |
| |
| if (cmdtail && !strncmp (cmdtail, ".oob", 2)) { |
| /* read out-of-band data */ |
| if (cmd & NANDRW_READ) { |
| ret = nand_read_oob (nand_dev_desc + curr_device, |
| off, size, &total, |
| (u_char *) addr); |
| } else { |
| ret = nand_write_oob (nand_dev_desc + curr_device, |
| off, size, &total, |
| (u_char *) addr); |
| } |
| return ret; |
| } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2)) |
| cmd |= NANDRW_JFFS2; /* skip bad blocks */ |
| else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) { |
| cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */ |
| if (cmd & NANDRW_READ) |
| cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */ |
| } |
| #ifdef SXNI855T |
| /* need ".e" same as ".j" for compatibility with older units */ |
| else if (cmdtail && !strcmp (cmdtail, ".e")) |
| cmd |= NANDRW_JFFS2; /* skip bad blocks */ |
| #endif |
| #ifdef CFG_NAND_SKIP_BAD_DOT_I |
| /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */ |
| /* ".i" for image -> read skips bad block (no 0xff) */ |
| else if (cmdtail && !strcmp (cmdtail, ".i")) { |
| cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */ |
| if (cmd & NANDRW_READ) |
| cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */ |
| } |
| #endif /* CFG_NAND_SKIP_BAD_DOT_I */ |
| else if (cmdtail) { |
| printf ("Usage:\n%s\n", cmdtp->usage); |
| return 1; |
| } |
| |
| printf ("\nNAND %s: device %d offset %ld, size %ld ...\n", |
| (cmd & NANDRW_READ) ? "read" : "write", |
| curr_device, off, size); |
| |
| ret = nand_legacy_rw (nand_dev_desc + curr_device, |
| cmd, off, size, |
| &total, |
| (u_char *) addr); |
| |
| printf (" %d bytes %s: %s\n", total, |
| (cmd & NANDRW_READ) ? "read" : "written", |
| ret ? "ERROR" : "OK"); |
| |
| return ret; |
| } else if (strcmp (argv[1], "erase") == 0 && |
| (argc == 4 || strcmp ("clean", argv[2]) == 0)) { |
| int clean = argc == 5; |
| ulong off = |
| simple_strtoul (argv[2 + clean], NULL, 16); |
| ulong size = |
| simple_strtoul (argv[3 + clean], NULL, 16); |
| int ret; |
| |
| printf ("\nNAND erase: device %d offset %ld, size %ld ...\n", |
| curr_device, off, size); |
| |
| ret = nand_legacy_erase (nand_dev_desc + curr_device, |
| off, size, clean); |
| |
| printf ("%s\n", ret ? "ERROR" : "OK"); |
| |
| return ret; |
| } else { |
| printf ("Usage:\n%s\n", cmdtp->usage); |
| rcode = 1; |
| } |
| |
| return rcode; |
| } |
| } |
| |
| U_BOOT_CMD( |
| nand, 5, 1, do_nand, |
| "nand - legacy NAND sub-system\n", |
| "info - show available NAND devices\n" |
| "nand device [dev] - show or set current device\n" |
| "nand read[.jffs2[s]] addr off size\n" |
| "nand write[.jffs2] addr off size - read/write `size' bytes starting\n" |
| " at offset `off' to/from memory address `addr'\n" |
| "nand erase [clean] [off size] - erase `size' bytes from\n" |
| " offset `off' (entire device if not specified)\n" |
| "nand bad - show bad blocks\n" |
| "nand read.oob addr off size - read out-of-band data\n" |
| "nand write.oob addr off size - read out-of-band data\n" |
| ); |
| |
| int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
| { |
| char *boot_device = NULL; |
| char *ep; |
| int dev; |
| ulong cnt; |
| ulong addr; |
| ulong offset = 0; |
| image_header_t *hdr; |
| int rcode = 0; |
| #if defined(CONFIG_FIT) |
| const void *fit_hdr; |
| #endif |
| |
| show_boot_progress (52); |
| switch (argc) { |
| case 1: |
| addr = CFG_LOAD_ADDR; |
| boot_device = getenv ("bootdevice"); |
| break; |
| case 2: |
| addr = simple_strtoul(argv[1], NULL, 16); |
| boot_device = getenv ("bootdevice"); |
| break; |
| case 3: |
| addr = simple_strtoul(argv[1], NULL, 16); |
| boot_device = argv[2]; |
| break; |
| case 4: |
| addr = simple_strtoul(argv[1], NULL, 16); |
| boot_device = argv[2]; |
| offset = simple_strtoul(argv[3], NULL, 16); |
| break; |
| default: |
| printf ("Usage:\n%s\n", cmdtp->usage); |
| show_boot_progress (-53); |
| return 1; |
| } |
| |
| show_boot_progress (53); |
| if (!boot_device) { |
| puts ("\n** No boot device **\n"); |
| show_boot_progress (-54); |
| return 1; |
| } |
| show_boot_progress (54); |
| |
| dev = simple_strtoul(boot_device, &ep, 16); |
| |
| if ((dev >= CFG_MAX_NAND_DEVICE) || |
| (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) { |
| printf ("\n** Device %d not available\n", dev); |
| show_boot_progress (-55); |
| return 1; |
| } |
| show_boot_progress (55); |
| |
| printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n", |
| dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR, |
| offset); |
| |
| if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset, |
| SECTORSIZE, NULL, (u_char *)addr)) { |
| printf ("** Read error on %d\n", dev); |
| show_boot_progress (-56); |
| return 1; |
| } |
| show_boot_progress (56); |
| |
| switch (genimg_get_format ((void *)addr)) { |
| case IMAGE_FORMAT_LEGACY: |
| hdr = (image_header_t *)addr; |
| image_print_contents (hdr); |
| |
| cnt = image_get_image_size (hdr); |
| cnt -= SECTORSIZE; |
| break; |
| #if defined(CONFIG_FIT) |
| case IMAGE_FORMAT_FIT: |
| fit_hdr = (const void *)addr; |
| if (!fit_check_format (fit_hdr)) { |
| show_boot_progress (-150); |
| puts ("** Bad FIT image format\n"); |
| return 1; |
| } |
| show_boot_progress (151); |
| puts ("Fit image detected...\n"); |
| |
| cnt = fit_get_size (fit_hdr); |
| break; |
| #endif |
| default: |
| show_boot_progress (-57); |
| puts ("** Unknown image type\n"); |
| return 1; |
| } |
| show_boot_progress (57); |
| |
| if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, |
| offset + SECTORSIZE, cnt, NULL, |
| (u_char *)(addr+SECTORSIZE))) { |
| printf ("** Read error on %d\n", dev); |
| show_boot_progress (-58); |
| return 1; |
| } |
| show_boot_progress (58); |
| |
| #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) |
| fit_print_contents ((const void *)addr); |
| #endif |
| |
| /* Loading ok, update default load address */ |
| |
| load_addr = addr; |
| |
| /* Check if we should attempt an auto-start */ |
| if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) { |
| char *local_args[2]; |
| extern int do_bootm (cmd_tbl_t *, int, int, char *[]); |
| |
| local_args[0] = argv[0]; |
| local_args[1] = NULL; |
| |
| printf ("Automatic boot of image at addr 0x%08lx ...\n", addr); |
| |
| do_bootm (cmdtp, 0, 1, local_args); |
| rcode = 1; |
| } |
| return rcode; |
| } |
| |
| U_BOOT_CMD( |
| nboot, 4, 1, do_nandboot, |
| "nboot - boot from NAND device\n", |
| "loadAddr dev\n" |
| ); |
| |
| #endif |
| |
| #endif /* CFG_NAND_LEGACY */ |