/* * MTD partitioning layer definitions * * (C) 2000 Nicolas Pitre <nico@fluxnic.net> * * This code is GPL */ #ifndef MTD_PARTITIONS_H #define MTD_PARTITIONS_H #include <linux/types.h> /* * Partition definition structure: * * An array of struct partition is passed along with a MTD object to * mtd_device_register() to create them. * * For each partition, these fields are available: * name: string that will be used to label the partition's MTD device. * types: some partitions can be containers using specific format to describe * embedded subpartitions / volumes. E.g. many home routers use "firmware" * partition that contains at least kernel and rootfs. In such case an * extra parser is needed that will detect these dynamic partitions and * report them to the MTD subsystem. If set this property stores an array * of parser names to use when looking for subpartitions. * size: the partition size; if defined as MTDPART_SIZ_FULL, the partition * will extend to the end of the master MTD device. * offset: absolute starting position within the master MTD device; if * defined as MTDPART_OFS_APPEND, the partition will start where the * previous one ended; if MTDPART_OFS_NXTBLK, at the next erase block; * if MTDPART_OFS_RETAIN, consume as much as possible, leaving size * after the end of partition. * mask_flags: contains flags that have to be masked (removed) from the * master MTD flag set for the corresponding MTD partition. * For example, to force a read-only partition, simply adding * MTD_WRITEABLE to the mask_flags will do the trick. * * Note: writeable partitions require their size and offset be * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK). */ struct mtd_partition { const char *name; /* identifier string */ const char *const *types; /* names of parsers to use if any */ uint64_t size; /* partition size */ uint64_t offset; /* offset within the master MTD space */ uint32_t mask_flags; /* master MTD flags to mask out for this partition */ struct device_node *of_node; }; #define MTDPART_OFS_RETAIN (-3) #define MTDPART_OFS_NXTBLK (-2) #define MTDPART_OFS_APPEND (-1) #define MTDPART_SIZ_FULL (0) struct mtd_info; struct device_node; /** * struct mtd_part_parser_data - used to pass data to MTD partition parsers. * @origin: for RedBoot, start address of MTD device */ struct mtd_part_parser_data { unsigned long origin; }; /* * Functions dealing with the various ways of partitioning the space */ struct mtd_part_parser { struct list_head list; struct module *owner; const char *name; int (*parse_fn)(struct mtd_info *, const struct mtd_partition **, struct mtd_part_parser_data *); void (*cleanup)(const struct mtd_partition *pparts, int nr_parts); }; /* Container for passing around a set of parsed partitions */ struct mtd_partitions { const struct mtd_partition *parts; int nr_parts; const struct mtd_part_parser *parser; }; extern int __register_mtd_parser(struct mtd_part_parser *parser, struct module *owner); #define register_mtd_parser(parser) __register_mtd_parser(parser, THIS_MODULE) extern void deregister_mtd_parser(struct mtd_part_parser *parser); /* * module_mtd_part_parser() - Helper macro for MTD partition parsers that don't * do anything special in module init/exit. Each driver may only use this macro * once, and calling it replaces module_init() and module_exit(). */ #define module_mtd_part_parser(__mtd_part_parser) \ module_driver(__mtd_part_parser, register_mtd_parser, \ deregister_mtd_parser) int mtd_is_partition(const struct mtd_info *mtd); int mtd_add_partition(struct mtd_info *master, const char *name, long long offset, long long length); int mtd_del_partition(struct mtd_info *master, int partno); uint64_t mtd_get_device_size(const struct mtd_info *mtd); #endif
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bbm.h | File | 5.84 KB | 0644 |
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blktrans.h | File | 2.81 KB | 0644 |
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cfi.h | File | 10.31 KB | 0644 |
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cfi_endian.h | File | 2.13 KB | 0644 |
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concat.h | File | 1.14 KB | 0644 |
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doc2000.h | File | 6.03 KB | 0644 |
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flashchip.h | File | 3.08 KB | 0644 |
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ftl.h | File | 2.49 KB | 0644 |
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gen_probe.h | File | 1.26 KB | 0644 |
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inftl.h | File | 1.56 KB | 0644 |
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latch-addr-flash.h | File | 716 B | 0644 |
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lpc32xx_mlc.h | File | 531 B | 0644 |
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lpc32xx_slc.h | File | 531 B | 0644 |
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map.h | File | 13.37 KB | 0644 |
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mtd.h | File | 19.05 KB | 0644 |
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mtdram.h | File | 257 B | 0644 |
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nand-gpio.h | File | 330 B | 0644 |
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nand_bch.h | File | 1.56 KB | 0644 |
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nand_ecc.h | File | 1.14 KB | 0644 |
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ndfc.h | File | 2.2 KB | 0644 |
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nftl.h | File | 2.35 KB | 0644 |
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onenand.h | File | 7.87 KB | 0644 |
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onenand_regs.h | File | 7.15 KB | 0644 |
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partitions.h | File | 3.75 KB | 0644 |
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pfow.h | File | 5.56 KB | 0644 |
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physmap.h | File | 1 KB | 0644 |
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pismo.h | File | 440 B | 0644 |
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plat-ram.h | File | 817 B | 0644 |
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qinfo.h | File | 2.47 KB | 0644 |
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rawnand.h | File | 41.17 KB | 0644 |
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sh_flctl.h | File | 6.41 KB | 0644 |
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sharpsl.h | File | 587 B | 0644 |
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spear_smi.h | File | 1.67 KB | 0644 |
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spi-nor.h | File | 14.28 KB | 0644 |
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super.h | File | 835 B | 0644 |
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ubi.h | File | 10.33 KB | 0644 |
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xip.h | File | 2.66 KB | 0644 |
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