upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
153 lines
4.8 KiB
153 lines
4.8 KiB
/*
|
|
* Copyright (c) International Business Machines Corp., 2006
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* Author: Artem Bityutskiy (Битюцкий Артём)
|
|
*/
|
|
|
|
#ifndef __UBI_SCAN_H__
|
|
#define __UBI_SCAN_H__
|
|
|
|
/* The erase counter value for this physical eraseblock is unknown */
|
|
#define UBI_SCAN_UNKNOWN_EC (-1)
|
|
|
|
/**
|
|
* struct ubi_scan_leb - scanning information about a physical eraseblock.
|
|
* @ec: erase counter (%UBI_SCAN_UNKNOWN_EC if it is unknown)
|
|
* @pnum: physical eraseblock number
|
|
* @lnum: logical eraseblock number
|
|
* @scrub: if this physical eraseblock needs scrubbing
|
|
* @sqnum: sequence number
|
|
* @u: unions RB-tree or @list links
|
|
* @u.rb: link in the per-volume RB-tree of &struct ubi_scan_leb objects
|
|
* @u.list: link in one of the eraseblock lists
|
|
* @leb_ver: logical eraseblock version (obsolete)
|
|
*
|
|
* One object of this type is allocated for each physical eraseblock during
|
|
* scanning.
|
|
*/
|
|
struct ubi_scan_leb {
|
|
int ec;
|
|
int pnum;
|
|
int lnum;
|
|
int scrub;
|
|
unsigned long long sqnum;
|
|
union {
|
|
struct rb_node rb;
|
|
struct list_head list;
|
|
} u;
|
|
uint32_t leb_ver;
|
|
};
|
|
|
|
/**
|
|
* struct ubi_scan_volume - scanning information about a volume.
|
|
* @vol_id: volume ID
|
|
* @highest_lnum: highest logical eraseblock number in this volume
|
|
* @leb_count: number of logical eraseblocks in this volume
|
|
* @vol_type: volume type
|
|
* @used_ebs: number of used logical eraseblocks in this volume (only for
|
|
* static volumes)
|
|
* @last_data_size: amount of data in the last logical eraseblock of this
|
|
* volume (always equivalent to the usable logical eraseblock size in case of
|
|
* dynamic volumes)
|
|
* @data_pad: how many bytes at the end of logical eraseblocks of this volume
|
|
* are not used (due to volume alignment)
|
|
* @compat: compatibility flags of this volume
|
|
* @rb: link in the volume RB-tree
|
|
* @root: root of the RB-tree containing all the eraseblock belonging to this
|
|
* volume (&struct ubi_scan_leb objects)
|
|
*
|
|
* One object of this type is allocated for each volume during scanning.
|
|
*/
|
|
struct ubi_scan_volume {
|
|
int vol_id;
|
|
int highest_lnum;
|
|
int leb_count;
|
|
int vol_type;
|
|
int used_ebs;
|
|
int last_data_size;
|
|
int data_pad;
|
|
int compat;
|
|
struct rb_node rb;
|
|
struct rb_root root;
|
|
};
|
|
|
|
/**
|
|
* struct ubi_scan_info - UBI scanning information.
|
|
* @volumes: root of the volume RB-tree
|
|
* @corr: list of corrupted physical eraseblocks
|
|
* @free: list of free physical eraseblocks
|
|
* @erase: list of physical eraseblocks which have to be erased
|
|
* @alien: list of physical eraseblocks which should not be used by UBI (e.g.,
|
|
* @bad_peb_count: count of bad physical eraseblocks
|
|
* those belonging to "preserve"-compatible internal volumes)
|
|
* @vols_found: number of volumes found during scanning
|
|
* @highest_vol_id: highest volume ID
|
|
* @alien_peb_count: count of physical eraseblocks in the @alien list
|
|
* @is_empty: flag indicating whether the MTD device is empty or not
|
|
* @min_ec: lowest erase counter value
|
|
* @max_ec: highest erase counter value
|
|
* @max_sqnum: highest sequence number value
|
|
* @mean_ec: mean erase counter value
|
|
* @ec_sum: a temporary variable used when calculating @mean_ec
|
|
* @ec_count: a temporary variable used when calculating @mean_ec
|
|
*
|
|
* This data structure contains the result of scanning and may be used by other
|
|
* UBI units to build final UBI data structures, further error-recovery and so
|
|
* on.
|
|
*/
|
|
struct ubi_scan_info {
|
|
struct rb_root volumes;
|
|
struct list_head corr;
|
|
struct list_head free;
|
|
struct list_head erase;
|
|
struct list_head alien;
|
|
int bad_peb_count;
|
|
int vols_found;
|
|
int highest_vol_id;
|
|
int alien_peb_count;
|
|
int is_empty;
|
|
int min_ec;
|
|
int max_ec;
|
|
unsigned long long max_sqnum;
|
|
int mean_ec;
|
|
uint64_t ec_sum;
|
|
int ec_count;
|
|
};
|
|
|
|
struct ubi_device;
|
|
struct ubi_vid_hdr;
|
|
|
|
/*
|
|
* ubi_scan_move_to_list - move a physical eraseblock from the volume tree to a
|
|
* list.
|
|
*
|
|
* @sv: volume scanning information
|
|
* @seb: scanning eraseblock infprmation
|
|
* @list: the list to move to
|
|
*/
|
|
static inline void ubi_scan_move_to_list(struct ubi_scan_volume *sv,
|
|
struct ubi_scan_leb *seb,
|
|
struct list_head *list)
|
|
{
|
|
rb_erase(&seb->u.rb, &sv->root);
|
|
list_add_tail(&seb->u.list, list);
|
|
}
|
|
|
|
int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si,
|
|
int pnum, int ec, const struct ubi_vid_hdr *vid_hdr,
|
|
int bitflips);
|
|
struct ubi_scan_volume *ubi_scan_find_sv(const struct ubi_scan_info *si,
|
|
int vol_id);
|
|
struct ubi_scan_leb *ubi_scan_find_seb(const struct ubi_scan_volume *sv,
|
|
int lnum);
|
|
void ubi_scan_rm_volume(struct ubi_scan_info *si, struct ubi_scan_volume *sv);
|
|
struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi,
|
|
struct ubi_scan_info *si);
|
|
int ubi_scan_erase_peb(struct ubi_device *ubi, const struct ubi_scan_info *si,
|
|
int pnum, int ec);
|
|
struct ubi_scan_info *ubi_scan(struct ubi_device *ubi);
|
|
void ubi_scan_destroy_si(struct ubi_scan_info *si);
|
|
|
|
#endif /* !__UBI_SCAN_H__ */
|
|
|