diff options
| author |   Huang Shijie <shijie8@gmail.com> | 2010-09-27 10:43:53 +0800 |
|---|---|---|
| committer |   David Woodhouse <David.Woodhouse@intel.com> | 2010-10-25 00:49:57 +0100 |
| commit | 12a40a57f762f569f58a393437d8c13864db390a (patch) | |
| tree | 2ab939b100ff7604422e31719fc1621e7b2f7ee3 /drivers/mtd | |
| parent | jffs2: drop unused model argument (diff) | |
| download | linux-dev-12a40a57f762f569f58a393437d8c13864db390a.tar.xz linux-dev-12a40a57f762f569f58a393437d8c13864db390a.zip | |
mtd: add init_size hook for NAND driver
Not all the NAND devices have all the information in additional
id bytes.
So add a hook in the nand_chip{} is a good method to calculate the
right value of oobsize, erasesize and so on.
Without the hook,you will get the wrong value, and you have to hack
in the ->scan_bbt() to change the wrong value which make the code
mess.
Signed-off-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 0b70c175999c..53f4e41836f1 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2976,8 +2976,10 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, chip->chipsize = (uint64_t)type->chipsize << 20; - /* Newer devices have all the information in additional id bytes */ - if (!type->pagesize) { + if (!type->pagesize && chip->init_size) { + /* set the pagesize, oobsize, erasesize by the driver*/ + busw = chip->init_size(mtd, chip, id_data); + } else if (!type->pagesize) { int extid; /* The 3rd id byte holds MLC / multichip data */ chip->cellinfo = id_data[2]; |