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| author | Kyungmin Park <kyungmin.park@samsung.com> | 2007-12-11 11:13:18 +0900 |
|---|---|---|
| committer | Kyungmin Park <kyungmin.park@samsung.com> | 2008-01-29 17:10:28 +0900 |
| commit | b21b72cf33bb212414c1d967850e261b795befa4 (patch) | |
| tree | f7f3942a02f7742f425c7966b2759faffccdd73d /drivers/mtd/onenand | |
| parent | 9d2f0b7a3de28d06ba4011b835b9a7e772553f0d (diff) | |
| download | linux-stable-b21b72cf33bb212414c1d967850e261b795befa4.tar.gz linux-stable-b21b72cf33bb212414c1d967850e261b795befa4.tar.bz2 linux-stable-b21b72cf33bb212414c1d967850e261b795befa4.zip | |
[MTD] [OneNAND] Consolidate OneNAND operation order
Consolidate OneNAND operation order as OneNAND Spec.
It also doesn't break previous operation order.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'drivers/mtd/onenand')
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 799bb1bc3dbc..c79bc2ef3f50 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -182,8 +182,7 @@ static int onenand_buffer_address(int dataram1, int sectors, int count) static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t len) { struct onenand_chip *this = mtd->priv; - int value, readcmd = 0, block_cmd = 0; - int block, page; + int value, block, page; /* Address translation */ switch (cmd) { @@ -198,7 +197,6 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le case ONENAND_CMD_ERASE: case ONENAND_CMD_BUFFERRAM: case ONENAND_CMD_OTP_ACCESS: - block_cmd = 1; block = (int) (addr >> this->erase_shift); page = -1; break; @@ -240,11 +238,9 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le value = onenand_block_address(this, block); this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1); - if (block_cmd) { - /* Select DataRAM for DDP */ - value = onenand_bufferram_address(this, block); - this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2); - } + /* Select DataRAM for DDP */ + value = onenand_bufferram_address(this, block); + this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2); } if (page != -1) { @@ -256,7 +252,6 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le case ONENAND_CMD_READ: case ONENAND_CMD_READOOB: dataram = ONENAND_SET_NEXT_BUFFERRAM(this); - readcmd = 1; break; default: @@ -273,12 +268,6 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le /* Write 'BSA, BSC' of DataRAM */ value = onenand_buffer_address(dataram, sectors, count); this->write_word(value, this->base + ONENAND_REG_START_BUFFER); - - if (readcmd) { - /* Select DataRAM for DDP */ - value = onenand_bufferram_address(this, block); - this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2); - } } /* Interrupt clear */ |