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authorGrant Likely <grant.likely@secretlab.ca>2010-05-22 08:36:56 +0200
committerGrant Likely <grant.likely@secretlab.ca>2010-05-22 08:36:56 +0200
commitcf9b59e9d3e008591d1f54830f570982bb307a0d (patch)
tree113478ce8fd8c832ba726ffdf59b82cb46356476 /drivers/mtd/nand/nand_bbt.c
parentof: change of_match_device to work with struct device (diff)
parentfbmem: avoid printk format warning with 32-bit resources (diff)
downloadlinux-cf9b59e9d3e008591d1f54830f570982bb307a0d.tar.xz
linux-cf9b59e9d3e008591d1f54830f570982bb307a0d.zip
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/mtd/nand/nand_bbt.c')
-rw-r--r--drivers/mtd/nand/nand_bbt.c29
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;