diff options
| author | Huang Shijie <b32955@freescale.com> | 2013-03-15 11:00:59 +0800 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2013-04-05 13:20:29 +0100 |
| commit | f22d5f638b0ea40e7cceb4639a608bd2c3eff97c (patch) | |
| tree | b9966f6920cf6da5273866685cd734ebf2faad90 /include/linux/mtd | |
| parent | bd247acb77b7a3dcb1075d7c9f09bc46bd242f3b (diff) | |
mtd: add new fields to nand_flash_dev{}
As time goes on, we begin to meet the situation that we can not get enough
information from some nand chips's id data. Take some Toshiba's nand chips
for example. I have 4 Toshiba's nand chips in my hand:
TC58NVG2S0F, TC58NVG3S0F, TC58NVG5D2, TC58NVG6D2
When we read these chips' datasheets, we will get the geometry of these chips:
TC58NVG2S0F : 4096 + 224
TC58NVG3S0F : 4096 + 232
TC58NVG5D2 : 8192 + 640
TC58NVG6D2 : 8192 + 640
But we can not parse out the correct oob size for these chips from the id data.
This patch adds some new fields to the nand_flash_dev{}:
@id_len: the valid length of the id data. See the comments in
nand_id_has_period()
@oobsize: the oob size.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Reviewed-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/nand.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 0f78d19303c5..13786f0ae12a 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -588,6 +588,8 @@ struct nand_chip { * @chipsize: total chip size in MiB * @erasesize: eraseblock size in bytes (determined from the extended ID if 0) * @options: stores various chip bit options + * @id_len: The valid length of the @id. + * @oobsize: OOB size */ struct nand_flash_dev { char *name; @@ -602,6 +604,8 @@ struct nand_flash_dev { unsigned int chipsize; unsigned int erasesize; unsigned int options; + uint16_t id_len; + uint16_t oobsize; }; /** |