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cmd/ubi.c
16.2 KB
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/* * Unsorted Block Image commands * * Copyright (C) 2008 Samsung Electronics * Kyungmin Park <kyungmin.park@samsung.com> * |
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* Copyright 2008-2009 Stefan Roese <sr@denx.de>, DENX Software Engineering |
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* * 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> |
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#include <env.h> |
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#include <exports.h> |
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#include <malloc.h> |
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#include <memalign.h> |
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#include <mtd.h> |
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#include <nand.h> #include <onenand_uboot.h> |
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#include <dm/devres.h> |
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#include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> |
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#include <linux/err.h> |
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#include <ubi_uboot.h> |
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#include <linux/errno.h> |
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#include <jffs2/load_kernel.h> |
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#undef ubi_msg #define ubi_msg(fmt, ...) printf("UBI: " fmt " ", ##__VA_ARGS__) |
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/* Private own data */ static struct ubi_device *ubi; |
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#ifdef CONFIG_CMD_UBIFS |
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#include <ubifs_uboot.h> |
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#endif |
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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; } |
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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; } |
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return 1; |
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} |
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static int verify_mkvol_req(const struct ubi_device *ubi, const struct ubi_mkvol_req *req) { |
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int n, err = EINVAL; |
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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; |
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if (req->bytes == 0) { printf("No space left in UBI device! "); err = ENOMEM; |
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goto bad; |
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} |
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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) { |
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printf("Name too long! "); err = ENAMETOOLONG; |
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goto bad; } return 0; bad: |
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return err; } |
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static int ubi_create_vol(char *volume, int64_t size, int dynamic, int vol_id, bool skipcheck) |
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{ struct ubi_mkvol_req req; int err; if (dynamic) req.vol_type = UBI_DYNAMIC_VOLUME; else req.vol_type = UBI_STATIC_VOLUME; |
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req.vol_id = vol_id; |
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req.alignment = 1; req.bytes = size; strcpy(req.name, volume); req.name_len = strlen(volume); req.name[req.name_len] = '\0'; |
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req.flags = 0; if (skipcheck) req.flags |= UBI_VOL_SKIP_CRC_CHECK_FLG; |
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/* It's duplicated at drivers/mtd/ubi/cdev.c */ err = verify_mkvol_req(ubi, &req); if (err) { printf("verify_mkvol_req failed %d ", err); return err; } |
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printf("Creating %s volume %s of size %lld ", |
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dynamic ? "dynamic" : "static", volume, size); /* Call real ubi create volume */ return ubi_create_volume(ubi, &req); } |
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static struct ubi_volume *ubi_find_volume(char *volume) |
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{ |
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struct ubi_volume *vol = NULL; |
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int i; |
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for (i = 0; i < ubi->vtbl_slots; i++) { vol = ubi->volumes[i]; |
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if (vol && !strcmp(vol->name, volume)) return vol; |
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} |
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printf("Volume %s not found! ", 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) ", vol->name, vol->vol_id); |
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if (ubi->ro_mode) { printf("It's read-only mode "); |
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err = EROFS; |
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goto out_err; } |
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err = ubi_change_vtbl_record(ubi, vol->vol_id, NULL); |
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if (err) { printf("Error changing Vol tabel record err=%x ", 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); |
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ubi->volumes[vol->vol_id]->eba_tbl = NULL; ubi->volumes[vol->vol_id] = NULL; |
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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: |
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ubi_err(ubi, "cannot remove volume %s, error %d", volume, err); |
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if (err < 0) err = -err; |
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return err; } |
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static int ubi_rename_vol(char *oldname, char *newname) { struct ubi_volume *vol; struct ubi_rename_entry rename; struct ubi_volume_desc desc; struct list_head list; vol = ubi_find_volume(oldname); if (!vol) { printf("%s: volume %s doesn't exist ", __func__, oldname); return ENODEV; } |
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if (!ubi_check(newname)) { printf("%s: volume %s already exist ", __func__, newname); return EINVAL; } |
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printf("Rename UBI volume %s to %s ", oldname, newname); if (ubi->ro_mode) { printf("%s: ubi device is in read-only mode ", __func__); return EROFS; } rename.new_name_len = strlen(newname); strcpy(rename.new_name, newname); rename.remove = 0; desc.vol = vol; desc.mode = 0; rename.desc = &desc; INIT_LIST_HEAD(&rename.list); INIT_LIST_HEAD(&list); list_add(&rename.list, &list); return ubi_rename_volumes(ubi, &list); } |
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static int ubi_volume_continue_write(char *volume, void *buf, size_t size) |
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{ |
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int err = 1; |
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struct ubi_volume *vol; |
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vol = ubi_find_volume(volume); if (vol == NULL) return ENODEV; |
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err = ubi_more_update_data(ubi, vol, buf, size); if (err < 0) { |
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printf("Couldnt or partially wrote data "); return -err; |
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} if (err) { size = err; err = ubi_check_volume(ubi, vol->vol_id); |
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if (err < 0) return -err; |
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if (err) { |
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ubi_warn(ubi, "volume %d on UBI device %d is corrupt", vol->vol_id, ubi->ubi_num); |
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vol->corrupted = 1; } vol->checked = 1; ubi_gluebi_updated(vol); } return 0; } |
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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); |
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if (size > rsvd_bytes) { |
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printf("size > volume size! Aborting! "); return EINVAL; } err = ubi_start_update(ubi, vol, full_size); if (err < 0) { printf("Cannot start volume update "); 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); } |
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int ubi_volume_read(char *volume, char *buf, size_t size) |
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{ |
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int err, lnum, off, len, tbuf_size; |
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void *tbuf; unsigned long long tmp; |
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struct ubi_volume *vol; |
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loff_t offp = 0; |
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size_t len_read; |
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vol = ubi_find_volume(volume); if (vol == NULL) return ENODEV; |
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if (vol->updating) { printf("updating"); |
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return EBUSY; |
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} if (vol->upd_marker) { printf("damaged volume, update marker is set"); |
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return EBADF; |
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} if (offp == vol->used_bytes) return 0; if (size == 0) { |
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printf("No size specified -> Using max size (%lld) ", vol->used_bytes); |
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size = vol->used_bytes; } |
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printf("Read %zu bytes from volume %s to %p ", size, volume, buf); |
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if (vol->corrupted) printf("read from corrupted volume %d", vol->vol_id); if (offp + size > vol->used_bytes) |
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size = vol->used_bytes - offp; |
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tbuf_size = vol->usable_leb_size; if (size < tbuf_size) tbuf_size = ALIGN(size, ubi->min_io_size); |
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tbuf = malloc_cache_aligned(tbuf_size); |
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if (!tbuf) { printf("NO MEM "); |
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return ENOMEM; |
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} len = size > tbuf_size ? tbuf_size : size; tmp = offp; off = do_div(tmp, vol->usable_leb_size); lnum = tmp; |
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len_read = size; |
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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 ", err); |
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err = -err; |
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break; } off += len; if (off == vol->usable_leb_size) { lnum += 1; off -= vol->usable_leb_size; } size -= len; offp += len; |
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memcpy(buf, tbuf, len); |
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buf += len; len = size > tbuf_size ? tbuf_size : size; } while (size); |
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if (!size) env_set_hex("filesize", len_read); |
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free(tbuf); |
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return err; |
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} |
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static int ubi_dev_scan(struct mtd_info *info, const char *vid_header_offset) |
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{ |
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char ubi_mtd_param_buffer[80]; |
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int err; |
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if (!vid_header_offset) sprintf(ubi_mtd_param_buffer, "%s", info->name); else sprintf(ubi_mtd_param_buffer, "%s,%s", info->name, vid_header_offset); |
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err = ubi_mtd_param_parse(ubi_mtd_param_buffer, NULL); |
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if (err) |
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return -err; |
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err = ubi_init(); |
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if (err) |
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return -err; |
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return 0; } |
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static int ubi_set_skip_check(char *volume, bool skip_check) { struct ubi_vtbl_record vtbl_rec; struct ubi_volume *vol; vol = ubi_find_volume(volume); if (!vol) return ENODEV; printf("%sing skip_check on volume %s ", skip_check ? "Sett" : "Clear", volume); vtbl_rec = ubi->vtbl[vol->vol_id]; if (skip_check) { vtbl_rec.flags |= UBI_VTBL_SKIP_CRC_CHECK_FLG; vol->skip_check = 1; } else { vtbl_rec.flags &= ~UBI_VTBL_SKIP_CRC_CHECK_FLG; vol->skip_check = 0; } return ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec); } |
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static int ubi_detach(void) |
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{ |
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#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 |
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/* * Call ubi_exit() before re-initializing the UBI subsystem */ |
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if (ubi) |
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ubi_exit(); |
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ubi = NULL; |
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return 0; } int ubi_part(char *part_name, const char *vid_header_offset) { |
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struct mtd_info *mtd; |
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int err = 0; |
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ubi_detach(); |
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mtd_probe_devices(); mtd = get_mtd_device_nm(part_name); if (IS_ERR(mtd)) { |
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printf("Partition %s not found! ", part_name); return 1; } |
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put_mtd_device(mtd); |
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err = ubi_dev_scan(mtd, vid_header_offset); |
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if (err) { printf("UBI init error %d ", err); |
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printf("Please check, if the correct MTD partition is used (size big enough?) "); |
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return err; } ubi = ubi_devices[0]; return 0; } |
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static int do_ubi(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) |
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{ |
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int64_t size = 0; |
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ulong addr = 0; |
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bool skipcheck = false; |
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if (argc < 2) return CMD_RET_USAGE; |
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if (strcmp(argv[1], "detach") == 0) |
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return ubi_detach(); |
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if (strcmp(argv[1], "part") == 0) { |
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const char *vid_header_offset = NULL; |
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/* Print current partition */ if (argc == 2) { |
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if (!ubi) { printf("Error, no UBI device selected! "); |
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return 1; } |
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printf("Device %d: %s, MTD partition %s ", ubi->ubi_num, ubi->ubi_name, ubi->mtd->name); |
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return 0; } |
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if (argc < 3) |
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return CMD_RET_USAGE; |
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if (argc > 3) vid_header_offset = argv[3]; |
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return ubi_part(argv[2], vid_header_offset); |
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} |
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if ((strcmp(argv[1], "part") != 0) && !ubi) { printf("Error, no UBI device selected! "); |
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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); } |
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if (strcmp(argv[1], "check") == 0) { if (argc > 2) return ubi_check(argv[2]); printf("Error, no volume name passed "); return 1; } |
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if (strncmp(argv[1], "create", 6) == 0) { int dynamic = 1; /* default: dynamic volume */ |
006124223
|
585 |
int id = UBI_VOL_NUM_AUTO; |
694a0b3f1
|
586 587 588 |
/* Use maximum available size */ size = 0; |
386f20cad
|
589 590 591 592 593 |
/* E.g., create volume with "skipcheck" bit set */ if (argc == 7) { skipcheck = strncmp(argv[6], "--skipcheck", 11) == 0; argc--; } |
006124223
|
594 595 596 597 598 |
/* E.g., create volume size type vol_id */ if (argc == 6) { id = simple_strtoull(argv[5], NULL, 16); argc--; } |
694a0b3f1
|
599 600 601 602 603 604 605 606 607 608 609 610 611 |
/* 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 "); return 1; } argc--; } /* E.g., create volume size */ if (argc == 4) { |
f59f07ece
|
612 613 |
if (argv[3][0] != '-') size = simple_strtoull(argv[3], NULL, 16); |
694a0b3f1
|
614 615 616 |
argc--; } /* Use maximum available size */ |
7f5d8a4d8
|
617 |
if (!size) { |
dd7185f17
|
618 619 620 |
size = (int64_t)ubi->avail_pebs * ubi->leb_size; printf("No size specified -> Using max size (%lld) ", size); |
7f5d8a4d8
|
621 |
} |
694a0b3f1
|
622 |
/* E.g., create volume */ |
386f20cad
|
623 624 625 626 |
if (argc == 3) { return ubi_create_vol(argv[2], size, dynamic, id, skipcheck); } |
694a0b3f1
|
627 628 629 630 631 632 633 |
} if (strncmp(argv[1], "remove", 6) == 0) { /* E.g., remove volume */ if (argc == 3) return ubi_remove_vol(argv[2]); } |
83f7078b6
|
634 635 |
if (IS_ENABLED(CONFIG_CMD_UBI_RENAME) && !strncmp(argv[1], "rename", 6)) return ubi_rename_vol(argv[2], argv[3]); |
e6661cf76
|
636 637 638 639 640 641 642 |
if (strncmp(argv[1], "skipcheck", 9) == 0) { /* E.g., change skip_check flag */ if (argc == 4) { skipcheck = strncmp(argv[3], "on", 2) == 0; return ubi_set_skip_check(argv[2], skipcheck); } } |
694a0b3f1
|
643 |
if (strncmp(argv[1], "write", 5) == 0) { |
718290675
|
644 |
int ret; |
694a0b3f1
|
645 646 647 648 649 |
if (argc < 5) { printf("Please see usage "); return 1; } |
7e5f460ec
|
650 651 |
addr = hextoul(argv[2], NULL); size = hextoul(argv[4], NULL); |
694a0b3f1
|
652 |
|
cc734f5ab
|
653 654 655 656 657 658 659 |
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; |
7e5f460ec
|
660 |
full_size = hextoul(argv[5], NULL); |
cc734f5ab
|
661 662 663 664 665 666 |
ret = ubi_volume_begin_write(argv[3], (void *)addr, size, full_size); } } else { ret = ubi_volume_write(argv[3], (void *)addr, size); } |
718290675
|
667 |
if (!ret) { |
dd7185f17
|
668 669 |
printf("%lld bytes written to volume %s ", size, |
718290675
|
670 671 672 673 |
argv[3]); } return ret; |
694a0b3f1
|
674 675 676 677 678 679 680 |
} if (strncmp(argv[1], "read", 4) == 0) { size = 0; /* E.g., read volume size */ if (argc == 5) { |
7e5f460ec
|
681 |
size = hextoul(argv[4], NULL); |
694a0b3f1
|
682 683 684 685 686 |
argc--; } /* E.g., read volume */ if (argc == 4) { |
7e5f460ec
|
687 |
addr = hextoul(argv[2], NULL); |
694a0b3f1
|
688 689 |
argc--; } |
718290675
|
690 |
if (argc == 3) { |
694a0b3f1
|
691 |
return ubi_volume_read(argv[3], (char *)addr, size); |
718290675
|
692 |
} |
694a0b3f1
|
693 694 695 696 |
} printf("Please see usage "); |
7f5d8a4d8
|
697 |
return 1; |
694a0b3f1
|
698 |
} |
388a29d02
|
699 |
U_BOOT_CMD( |
386f20cad
|
700 |
ubi, 7, 1, do_ubi, |
2fb2604d5
|
701 |
"ubi commands", |
cddfc97d1
|
702 703 704 705 706 |
"detach" " - detach ubi from a mtd partition " "ubi part [part] [offset] " |
25c8f4005
|
707 708 709 |
" - Show or set current partition (with optional VID" " header offset) " |
694a0b3f1
|
710 711 712 |
"ubi info [l[ayout]]" " - Display volume and ubi layout information " |
f9f4d809a
|
713 714 715 |
"ubi check volumename" " - check if volumename exists " |
386f20cad
|
716 717 |
"ubi create[vol] volume [size] [type] [id] [--skipcheck] " |
f59f07ece
|
718 719 720 |
" - create volume name with size ('-' for maximum" " available size) " |
694a0b3f1
|
721 722 723 |
"ubi write[vol] address volume size" " - Write volume from address with size " |
cc734f5ab
|
724 725 726 727 |
"ubi write.part address volume size [fullsize] " " - Write part of a volume from address " |
694a0b3f1
|
728 729 730 731 732 733 |
"ubi read[vol] address volume [size]" " - Read volume to address with size " "ubi remove[vol] volume" " - Remove volume " |
83f7078b6
|
734 735 736 737 |
#if IS_ENABLED(CONFIG_CMD_UBI_RENAME) "ubi rename oldname newname " #endif |
e6661cf76
|
738 739 |
"ubi skipcheck volume on/off - Set or clear skip_check flag in volume header " |
694a0b3f1
|
740 741 |
"[Legends] " |
f6ca3b709
|
742 743 744 745 |
" volume: character name " " size: specified in bytes " |
a89c33db9
|
746 |
" type: s[tatic] or d[ynamic] (default=dynamic)" |
694a0b3f1
|
747 |
); |