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mtd: onenand: add new option to control initial onenand unlocking

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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>
This commit is contained in:
Roman Tereshonkov 2011-02-17 13:44:41 +02:00 committed by David Woodhouse
parent dcfb81d61d
commit b3dcfd3524
2 changed files with 3 additions and 1 deletions
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3
drivers/mtd/onenand/onenand_base.c
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@ -4085,7 +4085,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
mtd->writebufsize = mtd->writesize; mtd->writebufsize = mtd->writesize;
/* Unlock whole block */ /* Unlock whole block */
this->unlock_all(mtd); if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING))
this->unlock_all(mtd);
ret = this->scan_bbt(mtd); ret = this->scan_bbt(mtd);
if ((!FLEXONENAND(this)) || ret) if ((!FLEXONENAND(this)) || ret)

1
include/linux/mtd/onenand.h
View File

@ -198,6 +198,7 @@ struct onenand_chip {
#define ONENAND_SKIP_UNLOCK_CHECK (0x0100) #define ONENAND_SKIP_UNLOCK_CHECK (0x0100)
#define ONENAND_PAGEBUF_ALLOC (0x1000) #define ONENAND_PAGEBUF_ALLOC (0x1000)
#define ONENAND_OOBBUF_ALLOC (0x2000) #define ONENAND_OOBBUF_ALLOC (0x2000)
#define ONENAND_SKIP_INITIAL_UNLOCKING (0x4000)
#define ONENAND_IS_4KB_PAGE(this) \ #define ONENAND_IS_4KB_PAGE(this) \
(this->options & ONENAND_HAS_4KB_PAGE) (this->options & ONENAND_HAS_4KB_PAGE)