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mtd: onenand: add option and variable for cache program feature

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A new option is added for cache program feature. A new variable
ongoing is introduced for onenand_chip to handle the multi-command
cache program operation.

Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.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 2010-11-03 12:55:19 +02:00 committed by David Woodhouse
parent 7ddbead6e6
commit 3e3198f1ad
1 changed files with 12 additions and 0 deletions
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12
include/linux/mtd/onenand.h
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@ -137,6 +137,14 @@ struct onenand_chip {
void *bbm;
void *priv;
/*
* Shows that the current operation is composed
* of sequence of commands. For example, cache program.
* Such command status OnGo bit is checked at the end of
* sequence.
*/
unsigned int ongoing;
};
/*
@ -171,6 +179,9 @@ struct onenand_chip {
#define ONENAND_IS_2PLANE(this) (0)
#endif
#define ONENAND_IS_CACHE_PROGRAM(this) \
(this->options & ONENAND_HAS_CACHE_PROGRAM)
/* Check byte access in OneNAND */
#define ONENAND_CHECK_BYTE_ACCESS(addr) (addr & 0x1)
@ -181,6 +192,7 @@ struct onenand_chip {
#define ONENAND_HAS_UNLOCK_ALL (0x0002)
#define ONENAND_HAS_2PLANE (0x0004)
#define ONENAND_HAS_4KB_PAGE (0x0008)
#define ONENAND_HAS_CACHE_PROGRAM (0x0010)
#define ONENAND_SKIP_UNLOCK_CHECK (0x0100)
#define ONENAND_PAGEBUF_ALLOC (0x1000)
#define ONENAND_OOBBUF_ALLOC (0x2000)