diff options
| author |   Roman Tereshonkov <roman.tereshonkov@nokia.com> | 2011-02-17 13:44:41 +0200 |
|---|---|---|
| committer |   David Woodhouse <David.Woodhouse@intel.com> | 2011-03-11 14:22:47 +0000 |
| commit | b3dcfd35244e1cb8dc8dfa5c05013b133dbb437a (patch) | |
| tree | af506e79393ddb05a8c8cc1a4271453442955ab8 | |
| parent | mtd: NOR flash driver for OMAP-L137/AM17x (diff) | |
| download | linux-dev-b3dcfd35244e1cb8dc8dfa5c05013b133dbb437a.tar.xz linux-dev-b3dcfd35244e1cb8dc8dfa5c05013b133dbb437a.zip | |
mtd: onenand: add new option to control initial onenand unlocking
A new option ONENAND_SKIP_INITIAL_UNLOCKING is added. This allows
to disable initial onenand unlocking when the driver is initialized.
Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 3 | ||||
| -rw-r--r-- | include/linux/mtd/onenand.h | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 4205b9423b89..56a8b2005bda 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -4085,7 +4085,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) mtd->writebufsize = mtd->writesize; /* Unlock whole block */ - this->unlock_all(mtd); + if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING)) + this->unlock_all(mtd); ret = this->scan_bbt(mtd); if ((!FLEXONENAND(this)) || ret) diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index ae418e41d8f5..52b6f187bf49 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -198,6 +198,7 @@ struct onenand_chip { #define ONENAND_SKIP_UNLOCK_CHECK (0x0100) #define ONENAND_PAGEBUF_ALLOC (0x1000) #define ONENAND_OOBBUF_ALLOC (0x2000) +#define ONENAND_SKIP_INITIAL_UNLOCKING (0x4000) #define ONENAND_IS_4KB_PAGE(this) \ (this->options & ONENAND_HAS_4KB_PAGE) |