mirror of
https://github.com/LineageOS/android_kernel_samsung_msm8226.git
synced 2026-09-29 00:00:25 +02:00
Steve Muckle
f132c6cf77
AU_LINUX_ANDROID_ICS.04.00.04.00.126 from msm-3.0. First parent is from google/android-3.4. * commit 'AU_LINUX_ANDROID_ICS.04.00.04.00.126': (8712 commits) PRNG: Device tree entry for qrng device. vidc:1080p: Set video core timeout value for Thumbnail mode msm: sps: improve the debugging support in SPS driver board-8064 msm: Overlap secure and non secure video firmware heaps. msm: clock: Add handoff ops for 7x30 and copper XO clocks msm_fb: display: Wait for external vsync before DTV IOMMU unmap msm: Fix ciruclar dependency in debug UART settings msm: gdsc: Add GDSC regulator driver for msm-copper defconfig: Enable Mobicore Driver. mobicore: Add mobicore driver. mobicore: rename variable to lower case. mobicore: rename folder. mobicore: add makefiles mobicore: initial import of kernel driver ASoC: msm: Add SLIMBUS_2_RX CPU DAI board-8064-gpio: Update FUNC for EPM SPI CS msm_fb: display: Remove chicken bit config during video playback mmc: msm_sdcc: enable the sanitize capability msm-fb: display: lm2 writeback support on mpq platfroms msm_fb: display: Disable LVDS phy & pll during panel off ... Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/*
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* MTD partitioning layer definitions
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*
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* (C) 2000 Nicolas Pitre <nico@fluxnic.net>
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*
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* This code is GPL
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*/
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#ifndef MTD_PARTITIONS_H
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#define MTD_PARTITIONS_H
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#include <linux/types.h>
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/*
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* Partition definition structure:
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*
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* An array of struct partition is passed along with a MTD object to
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* mtd_device_register() to create them.
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*
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* For each partition, these fields are available:
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* name: string that will be used to label the partition's MTD device.
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* size: the partition size; if defined as MTDPART_SIZ_FULL, the partition
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* will extend to the end of the master MTD device.
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* offset: absolute starting position within the master MTD device; if
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* defined as MTDPART_OFS_APPEND, the partition will start where the
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* previous one ended; if MTDPART_OFS_NXTBLK, at the next erase block;
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* if MTDPART_OFS_RETAIN, consume as much as possible, leaving size
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* after the end of partition.
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* mask_flags: contains flags that have to be masked (removed) from the
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* master MTD flag set for the corresponding MTD partition.
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* For example, to force a read-only partition, simply adding
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* MTD_WRITEABLE to the mask_flags will do the trick.
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*
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* Note: writeable partitions require their size and offset be
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* erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
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*/
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struct mtd_partition {
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char *name; /* identifier string */
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uint64_t size; /* partition size */
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uint64_t offset; /* offset within the master MTD space */
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uint32_t mask_flags; /* master MTD flags to mask out for this partition */
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struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only) */
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};
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#define MTDPART_OFS_RETAIN (-3)
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#define MTDPART_OFS_NXTBLK (-2)
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#define MTDPART_OFS_APPEND (-1)
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#define MTDPART_SIZ_FULL (0)
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struct mtd_info;
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struct device_node;
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/**
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* struct mtd_part_parser_data - used to pass data to MTD partition parsers.
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* @origin: for RedBoot, start address of MTD device
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* @of_node: for OF parsers, device node containing partitioning information
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*/
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struct mtd_part_parser_data {
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unsigned long origin;
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struct device_node *of_node;
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};
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void part_fill_badblockstats(struct mtd_info *mtd);
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/*
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* Functions dealing with the various ways of partitioning the space
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*/
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struct mtd_part_parser {
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struct list_head list;
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struct module *owner;
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const char *name;
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int (*parse_fn)(struct mtd_info *, struct mtd_partition **,
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struct mtd_part_parser_data *);
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};
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extern int register_mtd_parser(struct mtd_part_parser *parser);
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extern int deregister_mtd_parser(struct mtd_part_parser *parser);
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int mtd_is_partition(struct mtd_info *mtd);
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int mtd_add_partition(struct mtd_info *master, char *name,
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long long offset, long long length);
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int mtd_del_partition(struct mtd_info *master, int partno);
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#endif
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