mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 06:42:56 +00:00
985fa93e61
After a successful read of a UBI volume, the variable filesize is set to the number of read bytes. To boot linux with a raw initramfs/initrd, you must specify the exact size of the initramfs/initrd image in boot command. If the initramfs/inird is read from UBI volume, $filesize is required to access the number of read bytes. Example: ubi read ${loadaddr} kernelvol ubi read ${fdtaddr} dtbvol ubi read ${initrd_addr} initrdvol bootz ${loadaddr} ${initrd_addr}:${filesize} ${fdt_addr} Signed-off-by: Holger Dengler <dengler@linutronix.de> Reviewed-by: Heiko Schocher <hs@denx.de>
715 lines
15 KiB
C
715 lines
15 KiB
C
/*
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* Unsorted Block Image commands
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*
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* Copyright (C) 2008 Samsung Electronics
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* Kyungmin Park <kyungmin.park@samsung.com>
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*
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* Copyright 2008-2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <common.h>
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#include <command.h>
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#include <exports.h>
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#include <memalign.h>
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#include <nand.h>
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#include <onenand_uboot.h>
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#include <linux/mtd/mtd.h>
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#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
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#define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__)
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#define DEV_TYPE_NONE 0
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#define DEV_TYPE_NAND 1
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#define DEV_TYPE_ONENAND 2
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#define DEV_TYPE_NOR 3
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/* Private own data */
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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;
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struct mtd_info *mtd_info;
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};
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static struct selected_dev ubi_dev;
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#ifdef CONFIG_CMD_UBIFS
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int ubifs_is_mounted(void);
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void cmd_ubifs_umount(void);
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#endif
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static void display_volume_info(struct ubi_device *ubi)
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{
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int i;
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for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
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if (!ubi->volumes[i])
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continue; /* Empty record */
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ubi_dump_vol_info(ubi->volumes[i]);
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}
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}
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static void display_ubi_info(struct ubi_device *ubi)
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{
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ubi_msg("MTD device name: \"%s\"", ubi->mtd->name);
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ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20);
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ubi_msg("physical eraseblock size: %d bytes (%d KiB)",
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ubi->peb_size, ubi->peb_size >> 10);
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ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size);
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ubi_msg("number of good PEBs: %d", ubi->good_peb_count);
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ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count);
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ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size);
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ubi_msg("VID header offset: %d (aligned %d)",
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ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
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ubi_msg("data offset: %d", ubi->leb_start);
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ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots);
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ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD);
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ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
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ubi_msg("number of user volumes: %d",
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ubi->vol_count - UBI_INT_VOL_COUNT);
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ubi_msg("available PEBs: %d", ubi->avail_pebs);
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ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs);
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ubi_msg("number of PEBs reserved for bad PEB handling: %d",
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ubi->beb_rsvd_pebs);
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ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
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}
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static int ubi_info(int layout)
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{
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if (layout)
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display_volume_info(ubi);
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else
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display_ubi_info(ubi);
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return 0;
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}
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static int ubi_check_volumename(const struct ubi_volume *vol, char *name)
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{
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return strcmp(vol->name, name);
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}
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static int ubi_check(char *name)
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{
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int i;
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for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
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if (!ubi->volumes[i])
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continue; /* Empty record */
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if (!ubi_check_volumename(ubi->volumes[i], name))
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return 0;
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}
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return 1;
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}
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static int verify_mkvol_req(const struct ubi_device *ubi,
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const struct ubi_mkvol_req *req)
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{
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int n, err = EINVAL;
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if (req->bytes < 0 || req->alignment < 0 || req->vol_type < 0 ||
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req->name_len < 0)
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goto bad;
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if ((req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots) &&
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req->vol_id != UBI_VOL_NUM_AUTO)
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goto bad;
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if (req->alignment == 0)
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goto bad;
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if (req->bytes == 0) {
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printf("No space left in UBI device!\n");
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err = ENOMEM;
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goto bad;
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}
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if (req->vol_type != UBI_DYNAMIC_VOLUME &&
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req->vol_type != UBI_STATIC_VOLUME)
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goto bad;
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if (req->alignment > ubi->leb_size)
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goto bad;
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n = req->alignment % ubi->min_io_size;
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if (req->alignment != 1 && n)
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goto bad;
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if (req->name_len > UBI_VOL_NAME_MAX) {
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printf("Name too long!\n");
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err = ENAMETOOLONG;
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goto bad;
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}
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return 0;
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bad:
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return err;
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}
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static int ubi_create_vol(char *volume, int64_t size, int dynamic, int vol_id)
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{
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struct ubi_mkvol_req req;
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int err;
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if (dynamic)
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req.vol_type = UBI_DYNAMIC_VOLUME;
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else
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req.vol_type = UBI_STATIC_VOLUME;
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req.vol_id = vol_id;
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req.alignment = 1;
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req.bytes = size;
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strcpy(req.name, volume);
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req.name_len = strlen(volume);
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req.name[req.name_len] = '\0';
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req.padding1 = 0;
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/* It's duplicated at drivers/mtd/ubi/cdev.c */
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err = verify_mkvol_req(ubi, &req);
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if (err) {
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printf("verify_mkvol_req failed %d\n", err);
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return err;
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}
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printf("Creating %s volume %s of size %lld\n",
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dynamic ? "dynamic" : "static", volume, size);
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/* Call real ubi create volume */
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return ubi_create_volume(ubi, &req);
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}
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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++) {
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vol = ubi->volumes[i];
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if (vol && !strcmp(vol->name, volume))
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return vol;
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}
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printf("Volume %s not found!\n", volume);
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return NULL;
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}
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static int ubi_remove_vol(char *volume)
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{
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int err, reserved_pebs, i;
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struct ubi_volume *vol;
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vol = ubi_find_volume(volume);
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if (vol == NULL)
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return ENODEV;
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printf("Remove UBI volume %s (id %d)\n", vol->name, vol->vol_id);
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if (ubi->ro_mode) {
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printf("It's read-only mode\n");
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err = EROFS;
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goto out_err;
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}
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err = ubi_change_vtbl_record(ubi, vol->vol_id, NULL);
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if (err) {
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printf("Error changing Vol tabel record err=%x\n", err);
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goto out_err;
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}
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reserved_pebs = vol->reserved_pebs;
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for (i = 0; i < vol->reserved_pebs; i++) {
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err = ubi_eba_unmap_leb(ubi, vol, i);
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if (err)
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goto out_err;
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}
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kfree(vol->eba_tbl);
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ubi->volumes[vol->vol_id]->eba_tbl = NULL;
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ubi->volumes[vol->vol_id] = NULL;
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ubi->rsvd_pebs -= reserved_pebs;
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ubi->avail_pebs += reserved_pebs;
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i = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs;
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if (i > 0) {
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i = ubi->avail_pebs >= i ? i : ubi->avail_pebs;
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ubi->avail_pebs -= i;
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ubi->rsvd_pebs += i;
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ubi->beb_rsvd_pebs += i;
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if (i > 0)
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ubi_msg("reserve more %d PEBs", i);
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}
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ubi->vol_count -= 1;
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return 0;
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out_err:
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ubi_err(ubi, "cannot remove volume %s, error %d", volume, err);
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if (err < 0)
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err = -err;
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return err;
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}
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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);
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if (vol == NULL)
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return ENODEV;
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err = ubi_more_update_data(ubi, vol, buf, size);
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if (err < 0) {
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printf("Couldnt or partially wrote data\n");
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return -err;
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}
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if (err) {
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size = err;
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err = ubi_check_volume(ubi, vol->vol_id);
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if (err < 0)
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return -err;
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if (err) {
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ubi_warn(ubi, "volume %d on UBI device %d is corrupt",
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vol->vol_id, ubi->ubi_num);
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vol->corrupted = 1;
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}
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vol->checked = 1;
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ubi_gluebi_updated(vol);
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}
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return 0;
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}
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int ubi_volume_begin_write(char *volume, void *buf, size_t size,
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size_t full_size)
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{
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int err = 1;
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int rsvd_bytes = 0;
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struct ubi_volume *vol;
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vol = ubi_find_volume(volume);
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if (vol == NULL)
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return ENODEV;
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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!\n");
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return EINVAL;
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}
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err = ubi_start_update(ubi, vol, full_size);
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if (err < 0) {
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printf("Cannot start volume update\n");
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return -err;
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}
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return ubi_volume_continue_write(volume, buf, size);
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}
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int ubi_volume_write(char *volume, void *buf, size_t size)
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{
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return ubi_volume_begin_write(volume, buf, size, size);
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}
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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;
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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);
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if (vol == NULL)
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return ENODEV;
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if (vol->updating) {
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printf("updating");
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return EBUSY;
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}
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if (vol->upd_marker) {
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printf("damaged volume, update marker is set");
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return EBADF;
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}
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if (offp == vol->used_bytes)
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return 0;
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if (size == 0) {
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printf("No size specified -> Using max size (%lld)\n", vol->used_bytes);
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size = vol->used_bytes;
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}
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if (vol->corrupted)
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printf("read from corrupted volume %d", vol->vol_id);
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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;
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if (size < tbuf_size)
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tbuf_size = ALIGN(size, ubi->min_io_size);
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tbuf = malloc_cache_aligned(tbuf_size);
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if (!tbuf) {
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printf("NO MEM\n");
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return ENOMEM;
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}
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len = size > tbuf_size ? tbuf_size : size;
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tmp = offp;
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off = do_div(tmp, vol->usable_leb_size);
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lnum = tmp;
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len_read = size;
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do {
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if (off + len >= vol->usable_leb_size)
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len = vol->usable_leb_size - off;
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err = ubi_eba_read_leb(ubi, vol, lnum, tbuf, off, len, 0);
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if (err) {
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printf("read err %x\n", err);
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err = -err;
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break;
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}
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off += len;
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if (off == vol->usable_leb_size) {
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lnum += 1;
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off -= vol->usable_leb_size;
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}
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size -= len;
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offp += len;
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memcpy(buf, tbuf, len);
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buf += len;
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len = size > tbuf_size ? tbuf_size : size;
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} while (size);
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if (!size)
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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,
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const char *vid_header_offset)
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{
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struct mtd_device *dev;
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struct part_info *part;
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struct mtd_partition mtd_part;
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char ubi_mtd_param_buffer[80];
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u8 pnum;
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int err;
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if (find_dev_and_part(ubidev, &dev, &pnum, &part) != 0)
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return 1;
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sprintf(buffer, "mtd=%d", pnum);
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memset(&mtd_part, 0, sizeof(mtd_part));
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mtd_part.name = buffer;
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mtd_part.size = part->size;
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mtd_part.offset = part->offset;
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add_mtd_partitions(info, &mtd_part, 1);
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strcpy(ubi_mtd_param_buffer, buffer);
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if (vid_header_offset)
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sprintf(ubi_mtd_param_buffer, "mtd=%d,%s", pnum,
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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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del_mtd_partitions(info);
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return -err;
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}
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err = ubi_init();
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if (err) {
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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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}
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int ubi_detach(void)
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{
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if (mtdparts_init() != 0) {
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printf("Error initializing mtdparts!\n");
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return 1;
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}
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#ifdef CONFIG_CMD_UBIFS
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/*
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* Automatically unmount UBIFS partition when user
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* changes the UBI device. Otherwise the following
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* UBIFS commands will crash.
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*/
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if (ubifs_is_mounted())
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cmd_ubifs_umount();
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#endif
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/*
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* Call ubi_exit() before re-initializing the UBI subsystem
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*/
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if (ubi_initialized) {
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ubi_exit();
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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;
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return 0;
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}
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int ubi_part(char *part_name, const char *vid_header_offset)
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{
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int err = 0;
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char mtd_dev[16];
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struct mtd_device *dev;
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struct part_info *part;
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u8 pnum;
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ubi_detach();
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/*
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* Search the mtd device number where this partition
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* is located
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*/
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if (find_dev_and_part(part_name, &dev, &pnum, &part)) {
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printf("Partition %s not found!\n", part_name);
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return 1;
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}
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sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(dev->id->type), dev->id->num);
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ubi_dev.mtd_info = get_mtd_device_nm(mtd_dev);
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if (IS_ERR(ubi_dev.mtd_info)) {
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printf("Partition %s not found on device %s!\n", part_name,
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mtd_dev);
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return 1;
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}
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ubi_dev.selected = 1;
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strcpy(ubi_dev.part_name, part_name);
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err = ubi_dev_scan(ubi_dev.mtd_info, ubi_dev.part_name,
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vid_header_offset);
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if (err) {
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printf("UBI init error %d\n", err);
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ubi_dev.selected = 0;
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return err;
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}
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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], "detach") == 0) {
|
|
if (argc < 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
return ubi_detach();
|
|
}
|
|
|
|
|
|
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 */
|
|
int id = UBI_VOL_NUM_AUTO;
|
|
|
|
/* Use maximum available size */
|
|
size = 0;
|
|
|
|
/* E.g., create volume size type vol_id */
|
|
if (argc == 6) {
|
|
id = simple_strtoull(argv[5], NULL, 16);
|
|
argc--;
|
|
}
|
|
|
|
/* 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) {
|
|
if (argv[3][0] != '-')
|
|
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, id);
|
|
}
|
|
|
|
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",
|
|
"detach"
|
|
" - detach ubi from a mtd partition\n"
|
|
"ubi 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] [id]\n"
|
|
" - create volume name with size ('-' for maximum"
|
|
" available 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)"
|
|
);
|