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author | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-12-17 16:53:07 +0100 |
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committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-12-17 16:53:07 +0100 |
commit | cb5473205206c7f14cbb1e747f28ec75b48826e2 (patch) | |
tree | 8f4808d60917100b18a10b05230f7638a0a9bbcc /include/linux/mtd/partitions.h | |
parent | baf449fc5ff96f071bb0e3789fd3265f6d4fd9a0 (diff) | |
parent | 92c78a3bbcb2ce508b4bf1c4a1e0940406a024bb (diff) | |
download | u-boot-imx-cb5473205206c7f14cbb1e747f28ec75b48826e2.zip u-boot-imx-cb5473205206c7f14cbb1e747f28ec75b48826e2.tar.gz u-boot-imx-cb5473205206c7f14cbb1e747f28ec75b48826e2.tar.bz2 |
Merge branch 'fixes' into cleanups
Conflicts:
board/atmel/atngw100/atngw100.c
board/atmel/atstk1000/atstk1000.c
cpu/at32ap/at32ap700x/gpio.c
include/asm-avr32/arch-at32ap700x/clk.h
include/configs/atngw100.h
include/configs/atstk1002.h
include/configs/atstk1003.h
include/configs/atstk1004.h
include/configs/atstk1006.h
include/configs/favr-32-ezkit.h
include/configs/hammerhead.h
include/configs/mimc200.h
Diffstat (limited to 'include/linux/mtd/partitions.h')
-rw-r--r-- | include/linux/mtd/partitions.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h new file mode 100644 index 0000000..1016675 --- /dev/null +++ b/include/linux/mtd/partitions.h @@ -0,0 +1,84 @@ +/* + * MTD partitioning layer definitions + * + * (C) 2000 Nicolas Pitre <nico@cam.org> + * + * This code is GPL + * + * $Id: partitions.h,v 1.17 2005/11/07 11:14:55 gleixner Exp $ + */ + +#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 + * add_mtd_partitions() to create them. + * + * For each partition, these fields are available: + * name: string that will be used to label the partition's MTD device. + * 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. + * 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 { + char *name; /* identifier string */ + u_int32_t size; /* partition size */ + u_int32_t offset; /* offset within the master MTD space */ + u_int32_t mask_flags; /* master MTD flags to mask out for this partition */ + struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only)*/ + struct mtd_info **mtdp; /* pointer to store the MTD object */ +}; + +#define MTDPART_OFS_NXTBLK (-2) +#define MTDPART_OFS_APPEND (-1) +#define MTDPART_SIZ_FULL (0) + + +int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); +int del_mtd_partitions(struct mtd_info *); + +#if 0 +/* + * 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 *, struct mtd_partition **, unsigned long); +}; + +extern int register_mtd_parser(struct mtd_part_parser *parser); +extern int deregister_mtd_parser(struct mtd_part_parser *parser); +extern int parse_mtd_partitions(struct mtd_info *master, const char **types, + struct mtd_partition **pparts, unsigned long origin); + +#define put_partition_parser(p) do { module_put((p)->owner); } while(0) + +struct device; +struct device_node; + +int __devinit of_mtd_parse_partitions(struct device *dev, + struct mtd_info *mtd, + struct device_node *node, + struct mtd_partition **pparts); +#endif + +#endif |