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| author | Kyungmin Park <kyungmin.park@samsung.com> | 2007-01-15 17:09:14 +0900 |
|---|---|---|
| committer | Kyungmin Park <kyungmin.park@samsung.com> | 2007-01-18 11:00:31 +0900 |
| commit | 738d61f53781a9b677cb472cbd740aa74e7dcd6d (patch) | |
| tree | 45b7e7afb765eb497407295bb611fa2327ebf4a1 /include/linux/mtd | |
| parent | 9d03280129e84f8cdfd83f84803a4548e3bf697d (diff) | |
| download | linux-738d61f53781a9b677cb472cbd740aa74e7dcd6d.tar.gz linux-738d61f53781a9b677cb472cbd740aa74e7dcd6d.tar.bz2 linux-738d61f53781a9b677cb472cbd740aa74e7dcd6d.zip | |
[MTD] OneNAND: Reduce Double Density Package (DDP) operations
- DDP code clean-up
- Reduce block & bufferram operations in DDP
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/onenand.h | 3 | ||||
| -rw-r--r-- | include/linux/mtd/onenand_regs.h | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index f775a7af3890..a99b2944d26b 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -150,6 +150,9 @@ struct onenand_chip { #define ONENAND_SET_SYS_CFG1(v, this) \ (this->write_word(v, this->base + ONENAND_REG_SYS_CFG1)) +#define ONENAND_IS_DDP(this) \ + (this->device_id & ONENAND_DEVICE_IS_DDP) + /* Check byte access in OneNAND */ #define ONENAND_CHECK_BYTE_ACCESS(addr) (addr & 0x1) diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h index e31c8f5d4271..5b46cb52d214 100644 --- a/include/linux/mtd/onenand_regs.h +++ b/include/linux/mtd/onenand_regs.h @@ -80,9 +80,11 @@ #define ONENAND_VERSION_PROCESS_SHIFT (8) /* - * Start Address 1 F100h (R/W) + * Start Address 1 F100h (R/W) & Start Address 2 F101h (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) |