| /* |
| * Unsorted Block Image commands |
| * |
| * Copyright (C) 2008 Samsung Electronics |
| * Kyungmin Park <kyungmin.park@samsung.com> |
| * |
| * Copyright 2008-2009 Stefan Roese <sr@denx.de>, DENX Software Engineering |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <common.h> |
| #include <command.h> |
| #include <exports.h> |
| |
| #include <nand.h> |
| #include <onenand_uboot.h> |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/partitions.h> |
| #include <linux/err.h> |
| #include <ubi_uboot.h> |
| #include <asm/errno.h> |
| #include <jffs2/load_kernel.h> |
| |
| #undef ubi_msg |
| #define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__) |
| |
| #define DEV_TYPE_NONE 0 |
| #define DEV_TYPE_NAND 1 |
| #define DEV_TYPE_ONENAND 2 |
| #define DEV_TYPE_NOR 3 |
| |
| /* Private own data */ |
| static struct ubi_device *ubi; |
| static char buffer[80]; |
| static int ubi_initialized; |
| |
| struct selected_dev { |
| char part_name[80]; |
| int selected; |
| int nr; |
| struct mtd_info *mtd_info; |
| }; |
| |
| static struct selected_dev ubi_dev; |
| |
| #ifdef CONFIG_CMD_UBIFS |
| int ubifs_is_mounted(void); |
| void cmd_ubifs_umount(void); |
| #endif |
| |
| static void display_volume_info(struct ubi_device *ubi) |
| { |
| int i; |
| |
| for (i = 0; i < (ubi->vtbl_slots + 1); i++) { |
| if (!ubi->volumes[i]) |
| continue; /* Empty record */ |
| ubi_dump_vol_info(ubi->volumes[i]); |
| } |
| } |
| |
| static void display_ubi_info(struct ubi_device *ubi) |
| { |
| ubi_msg("MTD device name: \"%s\"", ubi->mtd->name); |
| ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20); |
| ubi_msg("physical eraseblock size: %d bytes (%d KiB)", |
| ubi->peb_size, ubi->peb_size >> 10); |
| ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size); |
| ubi_msg("number of good PEBs: %d", ubi->good_peb_count); |
| ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count); |
| ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size); |
| ubi_msg("VID header offset: %d (aligned %d)", |
| ubi->vid_hdr_offset, ubi->vid_hdr_aloffset); |
| ubi_msg("data offset: %d", ubi->leb_start); |
| ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots); |
| ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD); |
| ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT); |
| ubi_msg("number of user volumes: %d", |
| ubi->vol_count - UBI_INT_VOL_COUNT); |
| ubi_msg("available PEBs: %d", ubi->avail_pebs); |
| ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs); |
| ubi_msg("number of PEBs reserved for bad PEB handling: %d", |
| ubi->beb_rsvd_pebs); |
| ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec); |
| } |
| |
| static int ubi_info(int layout) |
| { |
| if (layout) |
| display_volume_info(ubi); |
| else |
| display_ubi_info(ubi); |
| |
| return 0; |
| } |
| |
| static int ubi_check_volumename(const struct ubi_volume *vol, char *name) |
| { |
| return strcmp(vol->name, name); |
| } |
| |
| static int ubi_check(char *name) |
| { |
| int i; |
| |
| for (i = 0; i < (ubi->vtbl_slots + 1); i++) { |
| if (!ubi->volumes[i]) |
| continue; /* Empty record */ |
| |
| if (!ubi_check_volumename(ubi->volumes[i], name)) |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| |
| static int verify_mkvol_req(const struct ubi_device *ubi, |
| const struct ubi_mkvol_req *req) |
| { |
| int n, err = EINVAL; |
| |
| if (req->bytes < 0 || req->alignment < 0 || req->vol_type < 0 || |
| req->name_len < 0) |
| goto bad; |
| |
| if ((req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots) && |
| req->vol_id != UBI_VOL_NUM_AUTO) |
| goto bad; |
| |
| if (req->alignment == 0) |
| goto bad; |
| |
| if (req->bytes == 0) { |
| printf("No space left in UBI device!\n"); |
| err = ENOMEM; |
| goto bad; |
| } |
| |
| if (req->vol_type != UBI_DYNAMIC_VOLUME && |
| req->vol_type != UBI_STATIC_VOLUME) |
| goto bad; |
| |
| if (req->alignment > ubi->leb_size) |
| goto bad; |
| |
| n = req->alignment % ubi->min_io_size; |
| if (req->alignment != 1 && n) |
| goto bad; |
| |
| if (req->name_len > UBI_VOL_NAME_MAX) { |
| printf("Name too long!\n"); |
| err = ENAMETOOLONG; |
| goto bad; |
| } |
| |
| return 0; |
| bad: |
| return err; |
| } |
| |
| static int ubi_create_vol(char *volume, int64_t size, int dynamic) |
| { |
| struct ubi_mkvol_req req; |
| int err; |
| |
| if (dynamic) |
| req.vol_type = UBI_DYNAMIC_VOLUME; |
| else |
| req.vol_type = UBI_STATIC_VOLUME; |
| |
| req.vol_id = UBI_VOL_NUM_AUTO; |
| req.alignment = 1; |
| req.bytes = size; |
| |
| strcpy(req.name, volume); |
| req.name_len = strlen(volume); |
| req.name[req.name_len] = '\0'; |
| req.padding1 = 0; |
| /* It's duplicated at drivers/mtd/ubi/cdev.c */ |
| err = verify_mkvol_req(ubi, &req); |
| if (err) { |
| printf("verify_mkvol_req failed %d\n", err); |
| return err; |
| } |
| printf("Creating %s volume %s of size %lld\n", |
| dynamic ? "dynamic" : "static", volume, size); |
| /* Call real ubi create volume */ |
| return ubi_create_volume(ubi, &req); |
| } |
| |
| static struct ubi_volume *ubi_find_volume(char *volume) |
| { |
| struct ubi_volume *vol = NULL; |
| int i; |
| |
| for (i = 0; i < ubi->vtbl_slots; i++) { |
| vol = ubi->volumes[i]; |
| if (vol && !strcmp(vol->name, volume)) |
| return vol; |
| } |
| |
| printf("Volume %s not found!\n", volume); |
| return NULL; |
| } |
| |
| static int ubi_remove_vol(char *volume) |
| { |
| int err, reserved_pebs, i; |
| struct ubi_volume *vol; |
| |
| vol = ubi_find_volume(volume); |
| if (vol == NULL) |
| return ENODEV; |
| |
| printf("Remove UBI volume %s (id %d)\n", vol->name, vol->vol_id); |
| |
| if (ubi->ro_mode) { |
| printf("It's read-only mode\n"); |
| err = EROFS; |
| goto out_err; |
| } |
| |
| err = ubi_change_vtbl_record(ubi, vol->vol_id, NULL); |
| if (err) { |
| printf("Error changing Vol tabel record err=%x\n", err); |
| goto out_err; |
| } |
| reserved_pebs = vol->reserved_pebs; |
| for (i = 0; i < vol->reserved_pebs; i++) { |
| err = ubi_eba_unmap_leb(ubi, vol, i); |
| if (err) |
| goto out_err; |
| } |
| |
| kfree(vol->eba_tbl); |
| ubi->volumes[vol->vol_id]->eba_tbl = NULL; |
| ubi->volumes[vol->vol_id] = NULL; |
| |
| ubi->rsvd_pebs -= reserved_pebs; |
| ubi->avail_pebs += reserved_pebs; |
| i = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs; |
| if (i > 0) { |
| i = ubi->avail_pebs >= i ? i : ubi->avail_pebs; |
| ubi->avail_pebs -= i; |
| ubi->rsvd_pebs += i; |
| ubi->beb_rsvd_pebs += i; |
| if (i > 0) |
| ubi_msg("reserve more %d PEBs", i); |
| } |
| ubi->vol_count -= 1; |
| |
| return 0; |
| out_err: |
| ubi_err(ubi, "cannot remove volume %s, error %d", volume, err); |
| if (err < 0) |
| err = -err; |
| return err; |
| } |
| |
| static int ubi_volume_continue_write(char *volume, void *buf, size_t size) |
| { |
| int err = 1; |
| struct ubi_volume *vol; |
| |
| vol = ubi_find_volume(volume); |
| if (vol == NULL) |
| return ENODEV; |
| |
| err = ubi_more_update_data(ubi, vol, buf, size); |
| if (err < 0) { |
| printf("Couldnt or partially wrote data\n"); |
| return -err; |
| } |
| |
| if (err) { |
| size = err; |
| |
| err = ubi_check_volume(ubi, vol->vol_id); |
| if (err < 0) |
| return -err; |
| |
| if (err) { |
| ubi_warn(ubi, "volume %d on UBI device %d is corrupt", |
| vol->vol_id, ubi->ubi_num); |
| vol->corrupted = 1; |
| } |
| |
| vol->checked = 1; |
| ubi_gluebi_updated(vol); |
| } |
| |
| return 0; |
| } |
| |
| int ubi_volume_begin_write(char *volume, void *buf, size_t size, |
| size_t full_size) |
| { |
| int err = 1; |
| int rsvd_bytes = 0; |
| struct ubi_volume *vol; |
| |
| vol = ubi_find_volume(volume); |
| if (vol == NULL) |
| return ENODEV; |
| |
| rsvd_bytes = vol->reserved_pebs * (ubi->leb_size - vol->data_pad); |
| if (size < 0 || size > rsvd_bytes) { |
| printf("size > volume size! Aborting!\n"); |
| return EINVAL; |
| } |
| |
| err = ubi_start_update(ubi, vol, full_size); |
| if (err < 0) { |
| printf("Cannot start volume update\n"); |
| return -err; |
| } |
| |
| return ubi_volume_continue_write(volume, buf, size); |
| } |
| |
| int ubi_volume_write(char *volume, void *buf, size_t size) |
| { |
| return ubi_volume_begin_write(volume, buf, size, size); |
| } |
| |
| int ubi_volume_read(char *volume, char *buf, size_t size) |
| { |
| int err, lnum, off, len, tbuf_size; |
| void *tbuf; |
| unsigned long long tmp; |
| struct ubi_volume *vol; |
| loff_t offp = 0; |
| |
| vol = ubi_find_volume(volume); |
| if (vol == NULL) |
| return ENODEV; |
| |
| if (vol->updating) { |
| printf("updating"); |
| return EBUSY; |
| } |
| if (vol->upd_marker) { |
| printf("damaged volume, update marker is set"); |
| return EBADF; |
| } |
| if (offp == vol->used_bytes) |
| return 0; |
| |
| if (size == 0) { |
| printf("No size specified -> Using max size (%lld)\n", vol->used_bytes); |
| size = vol->used_bytes; |
| } |
| |
| if (vol->corrupted) |
| printf("read from corrupted volume %d", vol->vol_id); |
| if (offp + size > vol->used_bytes) |
| size = vol->used_bytes - offp; |
| |
| tbuf_size = vol->usable_leb_size; |
| if (size < tbuf_size) |
| tbuf_size = ALIGN(size, ubi->min_io_size); |
| tbuf = malloc(tbuf_size); |
| if (!tbuf) { |
| printf("NO MEM\n"); |
| return ENOMEM; |
| } |
| len = size > tbuf_size ? tbuf_size : size; |
| |
| tmp = offp; |
| off = do_div(tmp, vol->usable_leb_size); |
| lnum = tmp; |
| do { |
| if (off + len >= vol->usable_leb_size) |
| len = vol->usable_leb_size - off; |
| |
| err = ubi_eba_read_leb(ubi, vol, lnum, tbuf, off, len, 0); |
| if (err) { |
| printf("read err %x\n", err); |
| err = -err; |
| break; |
| } |
| off += len; |
| if (off == vol->usable_leb_size) { |
| lnum += 1; |
| off -= vol->usable_leb_size; |
| } |
| |
| size -= len; |
| offp += len; |
| |
| memcpy(buf, tbuf, len); |
| |
| buf += len; |
| len = size > tbuf_size ? tbuf_size : size; |
| } while (size); |
| |
| free(tbuf); |
| return err; |
| } |
| |
| static int ubi_dev_scan(struct mtd_info *info, char *ubidev, |
| const char *vid_header_offset) |
| { |
| struct mtd_device *dev; |
| struct part_info *part; |
| struct mtd_partition mtd_part; |
| char ubi_mtd_param_buffer[80]; |
| u8 pnum; |
| int err; |
| |
| if (find_dev_and_part(ubidev, &dev, &pnum, &part) != 0) |
| return 1; |
| |
| sprintf(buffer, "mtd=%d", pnum); |
| memset(&mtd_part, 0, sizeof(mtd_part)); |
| mtd_part.name = buffer; |
| mtd_part.size = part->size; |
| mtd_part.offset = part->offset; |
| add_mtd_partitions(info, &mtd_part, 1); |
| |
| strcpy(ubi_mtd_param_buffer, buffer); |
| if (vid_header_offset) |
| sprintf(ubi_mtd_param_buffer, "mtd=%d,%s", pnum, |
| vid_header_offset); |
| err = ubi_mtd_param_parse(ubi_mtd_param_buffer, NULL); |
| if (err) { |
| del_mtd_partitions(info); |
| return -err; |
| } |
| |
| err = ubi_init(); |
| if (err) { |
| del_mtd_partitions(info); |
| return -err; |
| } |
| |
| ubi_initialized = 1; |
| |
| return 0; |
| } |
| |
| int ubi_part(char *part_name, const char *vid_header_offset) |
| { |
| int err = 0; |
| char mtd_dev[16]; |
| struct mtd_device *dev; |
| struct part_info *part; |
| u8 pnum; |
| |
| if (mtdparts_init() != 0) { |
| printf("Error initializing mtdparts!\n"); |
| return 1; |
| } |
| |
| #ifdef CONFIG_CMD_UBIFS |
| /* |
| * Automatically unmount UBIFS partition when user |
| * changes the UBI device. Otherwise the following |
| * UBIFS commands will crash. |
| */ |
| if (ubifs_is_mounted()) |
| cmd_ubifs_umount(); |
| #endif |
| |
| /* todo: get dev number for NAND... */ |
| ubi_dev.nr = 0; |
| |
| /* |
| * Call ubi_exit() before re-initializing the UBI subsystem |
| */ |
| if (ubi_initialized) { |
| ubi_exit(); |
| del_mtd_partitions(ubi_dev.mtd_info); |
| } |
| |
| /* |
| * Search the mtd device number where this partition |
| * is located |
| */ |
| if (find_dev_and_part(part_name, &dev, &pnum, &part)) { |
| printf("Partition %s not found!\n", part_name); |
| return 1; |
| } |
| sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(dev->id->type), dev->id->num); |
| ubi_dev.mtd_info = get_mtd_device_nm(mtd_dev); |
| if (IS_ERR(ubi_dev.mtd_info)) { |
| printf("Partition %s not found on device %s!\n", part_name, |
| mtd_dev); |
| return 1; |
| } |
| |
| ubi_dev.selected = 1; |
| |
| strcpy(ubi_dev.part_name, part_name); |
| err = ubi_dev_scan(ubi_dev.mtd_info, ubi_dev.part_name, |
| vid_header_offset); |
| if (err) { |
| printf("UBI init error %d\n", err); |
| ubi_dev.selected = 0; |
| return err; |
| } |
| |
| ubi = ubi_devices[0]; |
| |
| return 0; |
| } |
| |
| static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| { |
| int64_t size = 0; |
| ulong addr = 0; |
| |
| if (argc < 2) |
| return CMD_RET_USAGE; |
| |
| if (strcmp(argv[1], "part") == 0) { |
| const char *vid_header_offset = NULL; |
| |
| /* Print current partition */ |
| if (argc == 2) { |
| if (!ubi_dev.selected) { |
| printf("Error, no UBI device/partition selected!\n"); |
| return 1; |
| } |
| |
| printf("Device %d: %s, partition %s\n", |
| ubi_dev.nr, ubi_dev.mtd_info->name, ubi_dev.part_name); |
| return 0; |
| } |
| |
| if (argc < 3) |
| return CMD_RET_USAGE; |
| |
| if (argc > 3) |
| vid_header_offset = argv[3]; |
| |
| return ubi_part(argv[2], vid_header_offset); |
| } |
| |
| if ((strcmp(argv[1], "part") != 0) && (!ubi_dev.selected)) { |
| printf("Error, no UBI device/partition selected!\n"); |
| return 1; |
| } |
| |
| if (strcmp(argv[1], "info") == 0) { |
| int layout = 0; |
| if (argc > 2 && !strncmp(argv[2], "l", 1)) |
| layout = 1; |
| return ubi_info(layout); |
| } |
| |
| if (strcmp(argv[1], "check") == 0) { |
| if (argc > 2) |
| return ubi_check(argv[2]); |
| |
| printf("Error, no volume name passed\n"); |
| return 1; |
| } |
| |
| if (strncmp(argv[1], "create", 6) == 0) { |
| int dynamic = 1; /* default: dynamic volume */ |
| |
| /* Use maximum available size */ |
| size = 0; |
| |
| /* E.g., create volume size type */ |
| if (argc == 5) { |
| if (strncmp(argv[4], "s", 1) == 0) |
| dynamic = 0; |
| else if (strncmp(argv[4], "d", 1) != 0) { |
| printf("Incorrect type\n"); |
| return 1; |
| } |
| argc--; |
| } |
| /* E.g., create volume size */ |
| if (argc == 4) { |
| size = simple_strtoull(argv[3], NULL, 16); |
| argc--; |
| } |
| /* Use maximum available size */ |
| if (!size) { |
| size = (int64_t)ubi->avail_pebs * ubi->leb_size; |
| printf("No size specified -> Using max size (%lld)\n", size); |
| } |
| /* E.g., create volume */ |
| if (argc == 3) |
| return ubi_create_vol(argv[2], size, dynamic); |
| } |
| |
| if (strncmp(argv[1], "remove", 6) == 0) { |
| /* E.g., remove volume */ |
| if (argc == 3) |
| return ubi_remove_vol(argv[2]); |
| } |
| |
| if (strncmp(argv[1], "write", 5) == 0) { |
| int ret; |
| |
| if (argc < 5) { |
| printf("Please see usage\n"); |
| return 1; |
| } |
| |
| addr = simple_strtoul(argv[2], NULL, 16); |
| size = simple_strtoul(argv[4], NULL, 16); |
| |
| if (strlen(argv[1]) == 10 && |
| strncmp(argv[1] + 5, ".part", 5) == 0) { |
| if (argc < 6) { |
| ret = ubi_volume_continue_write(argv[3], |
| (void *)addr, size); |
| } else { |
| size_t full_size; |
| full_size = simple_strtoul(argv[5], NULL, 16); |
| ret = ubi_volume_begin_write(argv[3], |
| (void *)addr, size, full_size); |
| } |
| } else { |
| ret = ubi_volume_write(argv[3], (void *)addr, size); |
| } |
| if (!ret) { |
| printf("%lld bytes written to volume %s\n", size, |
| argv[3]); |
| } |
| |
| return ret; |
| } |
| |
| if (strncmp(argv[1], "read", 4) == 0) { |
| size = 0; |
| |
| /* E.g., read volume size */ |
| if (argc == 5) { |
| size = simple_strtoul(argv[4], NULL, 16); |
| argc--; |
| } |
| |
| /* E.g., read volume */ |
| if (argc == 4) { |
| addr = simple_strtoul(argv[2], NULL, 16); |
| argc--; |
| } |
| |
| if (argc == 3) { |
| printf("Read %lld bytes from volume %s to %lx\n", size, |
| argv[3], addr); |
| |
| return ubi_volume_read(argv[3], (char *)addr, size); |
| } |
| } |
| |
| printf("Please see usage\n"); |
| return 1; |
| } |
| |
| U_BOOT_CMD( |
| ubi, 6, 1, do_ubi, |
| "ubi commands", |
| "part [part] [offset]\n" |
| " - Show or set current partition (with optional VID" |
| " header offset)\n" |
| "ubi info [l[ayout]]" |
| " - Display volume and ubi layout information\n" |
| "ubi check volumename" |
| " - check if volumename exists\n" |
| "ubi create[vol] volume [size] [type]" |
| " - create volume name with size\n" |
| "ubi write[vol] address volume size" |
| " - Write volume from address with size\n" |
| "ubi write.part address volume size [fullsize]\n" |
| " - Write part of a volume from address\n" |
| "ubi read[vol] address volume [size]" |
| " - Read volume to address with size\n" |
| "ubi remove[vol] volume" |
| " - Remove volume\n" |
| "[Legends]\n" |
| " volume: character name\n" |
| " size: specified in bytes\n" |
| " type: s[tatic] or d[ynamic] (default=dynamic)" |
| ); |