mirror of
https://github.com/brain-hackers/u-boot-brain
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4549e789c1
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have multiple licenses (in these cases, dual license) declared in the SPDX-License-Identifier tag. In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B" as per the Linux Kernel style document. Note that parenthesis are allowed so when they were used before we continue to use them. Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Tom Rini <trini@konsulko.com>
136 lines
4.3 KiB
C
136 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL 2.0+ OR BSD-3-Clause */
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/*
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* Copyright (c) Thomas Gleixner <tglx@linutronix.de>
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*/
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#ifndef _UBOOT_MTD_UBISPL_H
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#define _UBOOT_MTD_UBISPL_H
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#include "../ubi/ubi-media.h"
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#include "ubi-wrapper.h"
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/*
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* The maximum number of volume ids we scan. So you can load volume id
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* 0 to (CONFIG_SPL_UBI_VOL_ID_MAX - 1)
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*/
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#define UBI_SPL_VOL_IDS CONFIG_SPL_UBI_VOL_IDS
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/*
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* The size of the read buffer for the fastmap blocks. In theory up to
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* UBI_FM_MAX_BLOCKS * CONFIG_SPL_MAX_PEB_SIZE. In practice today
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* one or two blocks.
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*/
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#define UBI_FM_BUF_SIZE (UBI_FM_MAX_BLOCKS*CONFIG_SPL_UBI_MAX_PEB_SIZE)
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/*
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* The size of the bitmaps for the attach/ scan
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*/
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#define UBI_FM_BM_SIZE ((CONFIG_SPL_UBI_MAX_PEBS / BITS_PER_LONG) + 1)
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/*
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* The maximum number of logical erase blocks per loadable volume
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*/
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#define UBI_MAX_VOL_LEBS CONFIG_SPL_UBI_MAX_VOL_LEBS
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/*
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* The bitmap size for the above to denote the found blocks inside the volume
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*/
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#define UBI_VOL_BM_SIZE ((UBI_MAX_VOL_LEBS / BITS_PER_LONG) + 1)
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/**
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* struct ubi_vol_info - UBISPL internal volume represenation
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* @last_block: The last block (highest LEB) found for this volume
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* @found: Bitmap to mark found LEBS
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* @lebs_to_pebs: LEB to PEB translation table
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*/
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struct ubi_vol_info {
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u32 last_block;
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unsigned long found[UBI_VOL_BM_SIZE];
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u32 lebs_to_pebs[UBI_MAX_VOL_LEBS];
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};
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/**
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* struct ubi_scan_info - UBISPL internal data for FM attach and full scan
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*
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* @read: Read function to access the flash provided by the caller
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* @peb_count: Number of physical erase blocks in the UBI FLASH area
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* aka MTD partition.
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* @peb_offset: Offset of PEB0 in the UBI FLASH area (aka MTD partition)
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* to the real start of the FLASH in erase blocks.
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* @fsize_mb: Size of the scanned FLASH area in MB (stats only)
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* @vid_offset: Offset from the start of a PEB to the VID header
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* @leb_start: Offset from the start of a PEB to the data area
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* @leb_size: Size of the data area
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*
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* @fastmap_pebs: Counter of PEBs "attached" by fastmap
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* @fastmap_anchor: The anchor PEB of the fastmap
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* @fm_sb: The fastmap super block data
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* @fm_vh: The fastmap VID header
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* @fm: Pointer to the fastmap layout
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* @fm_layout: The fastmap layout itself
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* @fm_pool: The pool of PEBs to scan at fastmap attach time
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* @fm_wl_pool: The pool of PEBs scheduled for wearleveling
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*
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* @fm_enabled: Indicator whether fastmap attachment is enabled.
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* @fm_used: Bitmap to indicate the PEBS covered by fastmap
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* @scanned: Bitmap to indicate the PEBS of which the VID header
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* hase been physically scanned.
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* @corrupt: Bitmap to indicate corrupt blocks
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* @toload: Bitmap to indicate the volumes which should be loaded
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*
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* @blockinfo: The vid headers of the scanned blocks
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* @volinfo: The volume information of the interesting (toload)
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* volumes
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*
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* @fm_buf: The large fastmap attach buffer
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*/
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struct ubi_scan_info {
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ubispl_read_flash read;
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unsigned int fsize_mb;
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unsigned int peb_count;
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unsigned int peb_offset;
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unsigned long vid_offset;
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unsigned long leb_start;
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unsigned long leb_size;
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/* Fastmap: The upstream required fields */
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int fastmap_pebs;
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int fastmap_anchor;
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size_t fm_size;
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struct ubi_fm_sb fm_sb;
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struct ubi_vid_hdr fm_vh;
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struct ubi_fastmap_layout *fm;
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struct ubi_fastmap_layout fm_layout;
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struct ubi_fm_pool fm_pool;
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struct ubi_fm_pool fm_wl_pool;
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/* Fastmap: UBISPL specific data */
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int fm_enabled;
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unsigned long fm_used[UBI_FM_BM_SIZE];
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unsigned long scanned[UBI_FM_BM_SIZE];
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unsigned long corrupt[UBI_FM_BM_SIZE];
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unsigned long toload[UBI_FM_BM_SIZE];
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/* Data for storing the VID and volume information */
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struct ubi_vol_info volinfo[UBI_SPL_VOL_IDS];
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struct ubi_vid_hdr blockinfo[CONFIG_SPL_UBI_MAX_PEBS];
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/* The large buffer for the fastmap */
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uint8_t fm_buf[UBI_FM_BUF_SIZE];
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};
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#ifdef CFG_DEBUG
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#define ubi_dbg(fmt, ...) printf("UBI: debug:" fmt "\n", ##__VA_ARGS__)
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#else
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#define ubi_dbg(fmt, ...)
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#endif
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#ifdef CONFIG_UBI_SILENCE_MSG
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#define ubi_msg(fmt, ...)
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#else
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#define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__)
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#endif
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/* UBI warning messages */
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#define ubi_warn(fmt, ...) printf("UBI warning: " fmt "\n", ##__VA_ARGS__)
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/* UBI error messages */
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#define ubi_err(fmt, ...) printf("UBI error: " fmt "\n", ##__VA_ARGS__)
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#endif
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