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| author | Stefan Roese <sr@denx.de> | 2009-05-11 16:03:55 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-06-12 20:45:47 +0200 |
| commit | 8d2effea23e938631126a7888008a0637e13b389 (patch) | |
| tree | e33073a1e09b6f5c340163a4581b81304fa3fa67 /include/linux/mtd | |
| parent | 0a57265533c412adf6024f4b4955141f4346b2b9 (diff) | |
| download | u-boot-imx-8d2effea23e938631126a7888008a0637e13b389.zip u-boot-imx-8d2effea23e938631126a7888008a0637e13b389.tar.gz u-boot-imx-8d2effea23e938631126a7888008a0637e13b389.tar.bz2 | |
mtd: Update MTD infrastructure to support 64bit device size
This patch brings the U-Boot MTD infrastructure in sync with the current
Linux MTD version (2.6.30-rc3). Biggest change is the 64bit device size
support and a resync of the mtdpart.c file which has seen multiple fixes
meanwhile.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Kyungmin Park <kmpark@infradead.org>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/mtd.h | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 354e3a0..c884567 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -8,6 +8,7 @@ #define __MTD_MTD_H__ #include <linux/types.h> +#include <div64.h> #include <linux/mtd/mtd-abi.h> #define MTD_CHAR_MAJOR 90 @@ -20,6 +21,8 @@ #define MTD_ERASE_DONE 0x08 #define MTD_ERASE_FAILED 0x10 +#define MTD_FAIL_ADDR_UNKNOWN -1LL + /* * Enumeration for NAND/OneNAND flash chip state */ @@ -37,13 +40,13 @@ enum { }; /* If the erase fails, fail_addr might indicate exactly which block failed. If - fail_addr = 0xffffffff, the failure was not at the device level or was not + fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level or was not specific to any particular block. */ struct erase_info { struct mtd_info *mtd; - u_int32_t addr; - u_int32_t len; - u_int32_t fail_addr; + uint64_t addr; + uint64_t len; + uint64_t fail_addr; u_long time; u_long retries; u_int dev; @@ -55,7 +58,7 @@ struct erase_info { }; struct mtd_erase_region_info { - u_int32_t offset; /* At which this region starts, from the beginning of the MTD */ + uint64_t offset; /* At which this region starts, from the beginning of the MTD */ u_int32_t erasesize; /* For this region */ u_int32_t numblocks; /* Number of blocks of erasesize in this region */ unsigned long *lockmap; /* If keeping bitmap of locks */ @@ -110,7 +113,7 @@ struct mtd_oob_ops { struct mtd_info { u_char type; u_int32_t flags; - u_int32_t size; /* Total size of the MTD */ + uint64_t size; // Total size of the MTD /* "Major" erase size for the device. Naïve users may take this * to be the only erase size available, or may use the more detailed @@ -202,8 +205,8 @@ struct mtd_info { void (*sync) (struct mtd_info *mtd); /* Chip-supported device locking */ - int (*lock) (struct mtd_info *mtd, loff_t ofs, size_t len); - int (*unlock) (struct mtd_info *mtd, loff_t ofs, size_t len); + int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); + int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); /* Power Management functions */ int (*suspend) (struct mtd_info *mtd); @@ -236,6 +239,16 @@ struct mtd_info { void (*put_device) (struct mtd_info *mtd); }; +static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd) +{ + do_div(sz, mtd->erasesize); + return sz; +} + +static inline uint32_t mtd_mod_by_eb(uint64_t sz, struct mtd_info *mtd) +{ + return do_div(sz, mtd->erasesize); +} /* Kernel-side ioctl definitions */ |