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https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 17:08:52 +09:00
![Stefan Roese](/assets/img/avatar_default.png)
When trying to attach an UBI MTD partition via "ubi part", it may happen that the MTD partition defined in U-Boot (via mtdparts) is not big enough than the one, where the UBI device has been created on. This may lead to errors, which are not really descriptive to debug and solve this issue, like: ubi0 error: vtbl_check: too large reserved_pebs 1982, good PEBs 1020 ubi0 error: vtbl_check: volume table check failed: record 0, error 9 or: ubi0 error: init_volumes: not enough PEBs, required 1738, available 1020 ubi0 error: ubi_wl_init: no enough physical eraseblocks (-718, need 1) ubi0 error: ubi_attach_mtd_dev: failed to attach mtd1, error -12 Lets add an additional message upon attach failure, to aid the U-Boot user to solve this problem. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Heiko Schocher <hs@denx.de>
716 lines
16 KiB
C
716 lines
16 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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printf("Read %u bytes from volume %s to %p\n", size, volume, buf);
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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,
|
|
vid_header_offset);
|
|
if (err) {
|
|
printf("UBI init error %d\n", err);
|
|
printf("Please check, if the correct MTD partition is used (size big enough?)\n");
|
|
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], "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) {
|
|
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)"
|
|
);
|