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authorKyungmin Park <kmpark@infradead.org>2008-08-19 08:42:53 +0900
committerScott Wood <scottwood@freescale.com>2008-08-21 13:50:20 -0500
commitbfd7f38614e21f745b6d6845fcc616ebc5e4d36f (patch)
treef72c120c39a8a6b51e57d22d600571e29aaa976e /include/linux/mtd
parent8d765456c1d33f2010d2717ee58de7647fdc6346 (diff)
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Fix OneNAND read_oob/write_oob functions compatability
Also sync with kernel OneNAND codes Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/bbm.h7
-rw-r--r--include/linux/mtd/onenand.h22
-rw-r--r--include/linux/mtd/onenand_regs.h2
3 files changed, 29 insertions, 2 deletions
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index bffb25b..abf8f1a 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -97,6 +97,13 @@ struct nand_bbt_descr {
*/
#define ONENAND_BADBLOCK_POS 0
+/*
+ * Bad block scanning errors
+ */
+#define ONENAND_BBT_READ_ERROR 1
+#define ONENAND_BBT_READ_ECC_ERROR 2
+#define ONENAND_BBT_READ_FATAL_ERROR 4
+
/**
* struct bbt_info - [GENERIC] Bad Block Table data structure
* @param bbt_erase_shift [INTERN] number of address bits in a bbt entry
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index 8a0fd0d..420eb14 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -75,6 +75,7 @@ struct onenand_chip {
unsigned int page_shift;
unsigned int ppb_shift; /* Pages per block shift */
unsigned int page_mask;
+ unsigned int writesize;
unsigned int bufferram_index;
struct onenand_bufferram bufferram[MAX_BUFFERRAM];
@@ -93,25 +94,39 @@ struct onenand_chip {
int (*block_markbad)(struct mtd_info *mtd, loff_t ofs);
int (*scan_bbt)(struct mtd_info *mtd);
- spinlock_t chip_lock;
- wait_queue_head_t wq;
int state;
+ unsigned char *page_buf;
+ unsigned char *oob_buf;
struct nand_oobinfo *autooob;
+ struct nand_ecclayout *ecclayout;
void *bbm;
void *priv;
};
+/*
+ * Helper macros
+ */
#define ONENAND_CURRENT_BUFFERRAM(this) (this->bufferram_index)
#define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1)
#define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1)
+#define ONENAND_SET_PREV_BUFFERRAM(this) (this->bufferram_index ^= 1)
+#define ONENAND_SET_BUFFERRAM0(this) (this->bufferram_index = 0)
+#define ONENAND_SET_BUFFERRAM1(this) (this->bufferram_index = 1)
+
+#define ONENAND_IS_DDP(this) \
+ (this->device_id & ONENAND_DEVICE_IS_DDP)
+
+#define ONENAND_IS_2PLANE(this) (0)
/*
* Options bits
*/
#define ONENAND_CONT_LOCK (0x0001)
+#define ONENAND_PAGEBUF_ALLOC (0x1000)
+#define ONENAND_OOBBUF_ALLOC (0x2000)
/*
* OneNAND Flash Manufacturer ID Codes
@@ -129,4 +144,7 @@ struct onenand_manufacturers {
char *name;
};
+int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from,
+ struct mtd_oob_ops *ops);
+
#endif /* __LINUX_MTD_ONENAND_H */
diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h
index c8a9f3e..6a8aa28 100644
--- a/include/linux/mtd/onenand_regs.h
+++ b/include/linux/mtd/onenand_regs.h
@@ -83,6 +83,8 @@
* Start Address 1 F100h (R/W)
*/
#define ONENAND_DDP_SHIFT (15)
+#define ONENAND_DDP_CHIP0 (0)
+#define ONENAND_DDP_CHIP1 (1 << ONENAND_DDP_SHIFT)
/*
* Start Address 8 F107h (R/W)