mtd: onenand: add option and variable for cache program feature (3e3198f1) · Commits · 戴 / test

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>

include/linux/mtd/onenand.h

+12 −0

Original line number	Diff line number	Diff line
		@@ -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)

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