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cmd/ubi.c
15.4 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> #include <exports.h> |
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#include <memalign.h> |
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#include <nand.h> #include <onenand_uboot.h> #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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#define DEV_TYPE_NONE 0 #define DEV_TYPE_NAND 1 #define DEV_TYPE_ONENAND 2 |
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#define DEV_TYPE_NOR 3 |
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/* Private own data */ static struct ubi_device *ubi; |
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static char buffer[80]; |
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static int ubi_initialized; |
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struct selected_dev { |
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char part_name[80]; |
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int selected; |
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int nr; struct mtd_info *mtd_info; }; static struct selected_dev ubi_dev; |
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#ifdef CONFIG_CMD_UBIFS int ubifs_is_mounted(void); void cmd_ubifs_umount(void); #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) |
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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'; 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 ", 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_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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|
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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; } 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, char *ubidev, const char *vid_header_offset) |
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{ struct mtd_device *dev; struct part_info *part; struct mtd_partition mtd_part; |
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char ubi_mtd_param_buffer[80]; |
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u8 pnum; int err; |
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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); |
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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); |
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if (err) { del_mtd_partitions(info); |
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return -err; |
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} err = ubi_init(); if (err) { del_mtd_partitions(info); |
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return -err; |
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} |
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ubi_initialized = 1; |
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return 0; } |
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int ubi_detach(void) |
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{ |
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if (mtdparts_init() != 0) { printf("Error initializing mtdparts! "); return 1; } |
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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 */ if (ubi_initialized) { ubi_exit(); del_mtd_partitions(ubi_dev.mtd_info); |
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ubi_initialized = 0; |
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} |
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ubi_dev.selected = 0; 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; ubi_detach(); |
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/* * 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! ", 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! ", 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 ", 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[]) { |
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int64_t size = 0; |
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ulong addr = 0; if (argc < 2) return CMD_RET_USAGE; |
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if (strcmp(argv[1], "detach") == 0) { if (argc < 2) return CMD_RET_USAGE; 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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|
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/* Print current partition */ if (argc == 2) { |
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if (!ubi_dev.selected) { |
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printf("Error, no UBI device/partition selected! "); return 1; } |
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printf("Device %d: %s, partition %s ", |
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ubi_dev.nr, ubi_dev.mtd_info->name, ubi_dev.part_name); 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); |
694a0b3f1 UBI: Add UBI comm... |
547 |
} |
2d579e506 ubi: Remove flash... |
548 |
if ((strcmp(argv[1], "part") != 0) && (!ubi_dev.selected)) { |
694a0b3f1 UBI: Add UBI comm... |
549 550 551 552 553 554 555 556 557 558 559 |
printf("Error, no UBI device/partition selected! "); 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); } |
f9f4d809a common, ubi: add ... |
560 561 562 563 564 565 566 567 |
if (strcmp(argv[1], "check") == 0) { if (argc > 2) return ubi_check(argv[2]); printf("Error, no volume name passed "); return 1; } |
694a0b3f1 UBI: Add UBI comm... |
568 569 |
if (strncmp(argv[1], "create", 6) == 0) { int dynamic = 1; /* default: dynamic volume */ |
006124223 cmd: ubi: add opt... |
570 |
int id = UBI_VOL_NUM_AUTO; |
694a0b3f1 UBI: Add UBI comm... |
571 572 573 |
/* Use maximum available size */ size = 0; |
006124223 cmd: ubi: add opt... |
574 575 576 577 578 |
/* E.g., create volume size type vol_id */ if (argc == 6) { id = simple_strtoull(argv[5], NULL, 16); argc--; } |
694a0b3f1 UBI: Add UBI comm... |
579 580 581 582 583 584 585 586 587 588 589 590 591 |
/* 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 cmd: ubi: allow '... |
592 593 |
if (argv[3][0] != '-') size = simple_strtoull(argv[3], NULL, 16); |
694a0b3f1 UBI: Add UBI comm... |
594 595 596 |
argc--; } /* Use maximum available size */ |
7f5d8a4d8 UBI: Fix error co... |
597 |
if (!size) { |
dd7185f17 cmd_ubi: use int6... |
598 599 600 |
size = (int64_t)ubi->avail_pebs * ubi->leb_size; printf("No size specified -> Using max size (%lld) ", size); |
7f5d8a4d8 UBI: Fix error co... |
601 |
} |
694a0b3f1 UBI: Add UBI comm... |
602 603 |
/* E.g., create volume */ if (argc == 3) |
006124223 cmd: ubi: add opt... |
604 |
return ubi_create_vol(argv[2], size, dynamic, id); |
694a0b3f1 UBI: Add UBI comm... |
605 606 607 608 609 610 611 612 613 |
} 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) { |
718290675 ubi: Expose a few... |
614 |
int ret; |
694a0b3f1 UBI: Add UBI comm... |
615 616 617 618 619 620 621 |
if (argc < 5) { printf("Please see usage "); return 1; } addr = simple_strtoul(argv[2], NULL, 16); |
a5c406701 UBI: Change parsi... |
622 |
size = simple_strtoul(argv[4], NULL, 16); |
694a0b3f1 UBI: Add UBI comm... |
623 |
|
cc734f5ab cmd_ubi: add writ... |
624 625 626 627 628 629 630 631 632 633 634 635 636 637 |
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); } |
718290675 ubi: Expose a few... |
638 |
if (!ret) { |
dd7185f17 cmd_ubi: use int6... |
639 640 |
printf("%lld bytes written to volume %s ", size, |
718290675 ubi: Expose a few... |
641 642 643 644 |
argv[3]); } return ret; |
694a0b3f1 UBI: Add UBI comm... |
645 646 647 648 649 650 651 |
} if (strncmp(argv[1], "read", 4) == 0) { size = 0; /* E.g., read volume size */ if (argc == 5) { |
a5c406701 UBI: Change parsi... |
652 |
size = simple_strtoul(argv[4], NULL, 16); |
694a0b3f1 UBI: Add UBI comm... |
653 654 655 656 657 658 659 660 |
argc--; } /* E.g., read volume */ if (argc == 4) { addr = simple_strtoul(argv[2], NULL, 16); argc--; } |
718290675 ubi: Expose a few... |
661 |
if (argc == 3) { |
dd7185f17 cmd_ubi: use int6... |
662 663 |
printf("Read %lld bytes from volume %s to %lx ", size, |
718290675 ubi: Expose a few... |
664 |
argv[3], addr); |
694a0b3f1 UBI: Add UBI comm... |
665 |
return ubi_volume_read(argv[3], (char *)addr, size); |
718290675 ubi: Expose a few... |
666 |
} |
694a0b3f1 UBI: Add UBI comm... |
667 668 669 670 |
} printf("Please see usage "); |
7f5d8a4d8 UBI: Fix error co... |
671 |
return 1; |
694a0b3f1 UBI: Add UBI comm... |
672 |
} |
388a29d02 various cmd_* fil... |
673 674 |
U_BOOT_CMD( ubi, 6, 1, do_ubi, |
2fb2604d5 Command usage cle... |
675 |
"ubi commands", |
cddfc97d1 ubi: add new ubi ... |
676 677 678 679 680 |
"detach" " - detach ubi from a mtd partition " "ubi part [part] [offset] " |
25c8f4005 Handle VID header... |
681 682 683 |
" - Show or set current partition (with optional VID" " header offset) " |
694a0b3f1 UBI: Add UBI comm... |
684 685 686 |
"ubi info [l[ayout]]" " - Display volume and ubi layout information " |
f9f4d809a common, ubi: add ... |
687 688 689 |
"ubi check volumename" " - check if volumename exists " |
f59f07ece cmd: ubi: allow '... |
690 691 692 693 694 |
"ubi create[vol] volume [size] [type] [id] " " - create volume name with size ('-' for maximum" " available size) " |
694a0b3f1 UBI: Add UBI comm... |
695 696 697 |
"ubi write[vol] address volume size" " - Write volume from address with size " |
cc734f5ab cmd_ubi: add writ... |
698 699 700 701 |
"ubi write.part address volume size [fullsize] " " - Write part of a volume from address " |
694a0b3f1 UBI: Add UBI comm... |
702 703 704 705 706 707 708 709 |
"ubi read[vol] address volume [size]" " - Read volume to address with size " "ubi remove[vol] volume" " - Remove volume " "[Legends] " |
f6ca3b709 ubi: help message... |
710 711 712 713 |
" volume: character name " " size: specified in bytes " |
a89c33db9 General help mess... |
714 |
" type: s[tatic] or d[ynamic] (default=dynamic)" |
694a0b3f1 UBI: Add UBI comm... |
715 |
); |