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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 16:25:43 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 16:25:43 +0200 |
commit | 05ec7dd8dd5aa42c22a49682e4a51cadd4166b7e (patch) | |
tree | 6370b43c0d8f324aa7421bbb5a647aa04ab5d747 /drivers/mtd/nand/nand_bbt.c | |
parent | Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6 (diff) | |
parent | mtd: cfi_cmdset_0002: use AMD standard command-set with Winbond flash chips (diff) | |
download | linux-05ec7dd8dd5aa42c22a49682e4a51cadd4166b7e.tar.xz linux-05ec7dd8dd5aa42c22a49682e4a51cadd4166b7e.zip |
Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (154 commits)
mtd: cfi_cmdset_0002: use AMD standard command-set with Winbond flash chips
mtd: cfi_cmdset_0002: Fix MODULE_ALIAS and linkage for new 0701 commandset ID
mtd: mxc_nand: Remove duplicate NAND_CMD_RESET case value
mtd: update gfp/slab.h includes
jffs2: Stop triggering block erases from jffs2_write_super()
jffs2: Rename jffs2_erase_pending_trigger() to jffs2_dirty_trigger()
jffs2: Use jffs2_garbage_collect_trigger() to trigger pending erases
jffs2: Require jffs2_garbage_collect_trigger() to be called with lock held
jffs2: Wake GC thread when there are blocks to be erased
jffs2: Erase pending blocks in GC pass, avoid invalid -EIO return
jffs2: Add 'work_done' return value from jffs2_erase_pending_blocks()
mtd: mtdchar: Do not corrupt backing device of device node inode
mtd/maps/pcmciamtd: Fix printk format for ssize_t in debug messages
drivers/mtd: Use kmemdup
mtd: cfi_cmdset_0002: Fix argument order in bootloc warning
mtd: nand: add Toshiba TC58NVG0 device ID
pcmciamtd: add another ID
pcmciamtd: coding style cleanups
pcmciamtd: fixing obvious errors
mtd: chips: add SST39WF160x NOR-flashes
...
Trivial conflicts due to dev_node removal in drivers/mtd/maps/pcmciamtd.c
Diffstat (limited to 'drivers/mtd/nand/nand_bbt.c')
-rw-r--r-- | drivers/mtd/nand/nand_bbt.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 55c23e5cd210..ad97c0ce73b2 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -237,15 +237,33 @@ static int scan_read_raw(struct mtd_info *mtd, uint8_t *buf, loff_t offs, size_t len) { struct mtd_oob_ops ops; + int res; ops.mode = MTD_OOB_RAW; ops.ooboffs = 0; ops.ooblen = mtd->oobsize; - ops.oobbuf = buf; - ops.datbuf = buf; - ops.len = len; - return mtd->read_oob(mtd, offs, &ops); + + while (len > 0) { + if (len <= mtd->writesize) { + ops.oobbuf = buf + len; + ops.datbuf = buf; + ops.len = len; + return mtd->read_oob(mtd, offs, &ops); + } else { + ops.oobbuf = buf + mtd->writesize; + ops.datbuf = buf; + ops.len = mtd->writesize; + res = mtd->read_oob(mtd, offs, &ops); + + if (res) + return res; + } + + buf += mtd->oobsize + mtd->writesize; + len -= mtd->writesize; + } + return 0; } /* @@ -414,6 +432,9 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, from = (loff_t)startblock << (this->bbt_erase_shift - 1); } + if (this->options & NAND_BB_LAST_PAGE) + from += mtd->erasesize - (mtd->writesize * len); + for (i = startblock; i < numblocks;) { int ret; |