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

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>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index 0c8815bfae1c..6da3fe314828 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -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)