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[MTD] [OneNAND] Classify the page data and oob buffer

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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>
This commit is contained in:
Kyungmin Park
2007-03-09 10:08:11 +09:00
committed by David Woodhouse
parent 5bc399e9ef
commit 470bc84436
2 changed files with 22 additions and 7 deletions
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5
include/linux/mtd/onenand.h
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@@ -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