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authorKyungmin Park <kyungmin.park@samsung.com>2007-03-09 10:08:11 +0900
committerDavid Woodhouse <dwmw2@infradead.org>2007-03-09 08:08:09 +0000
commit470bc844361b238bcbe6a07ba47d51fca25f2742 (patch)
tree818d1727b1613d0893e519e918d76ff4cdfcda7f /include/linux
parent5bc399e9ef430efd5725b66aa2ad7ad2d81e372b (diff)
[MTD] [OneNAND] Classify the page data and oob buffer
Classify the page data and oob buffer and it prevents the memory fragementation (writesize + oobsize) Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mtd/onenand.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index d8af8a95e58..a56d24ada50 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -82,7 +82,8 @@ struct onenand_bufferram {
* @wq: [INTERN] wait queue to sleep on if a OneNAND
* operation is in progress
* @state: [INTERN] the current state of the OneNAND device
- * @page_buf: data buffer
+ * @page_buf: [INTERN] page main data buffer
+ * @oob_buf: [INTERN] page oob data buffer
* @subpagesize: [INTERN] holds the subpagesize
* @ecclayout: [REPLACEABLE] the default ecc placement scheme
* @bbm: [REPLACEABLE] pointer to Bad Block Management
@@ -122,6 +123,7 @@ struct onenand_chip {
wait_queue_head_t wq;
onenand_state_t state;
unsigned char *page_buf;
+ unsigned char *oob_buf;
int subpagesize;
struct nand_ecclayout *ecclayout;
@@ -156,6 +158,7 @@ struct onenand_chip {
#define ONENAND_HAS_CONT_LOCK (0x0001)
#define ONENAND_HAS_UNLOCK_ALL (0x0002)
#define ONENAND_PAGEBUF_ALLOC (0x1000)
+#define ONENAND_OOBBUF_ALLOC (0x2000)
/*
* OneNAND Flash Manufacturer ID Codes