| Message ID | 20101001193737.GA28639@www.tglx.de |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, 2010-10-01 at 21:37 +0200, Sebastian Andrzej Siewior wrote: > it will create an empty BBT table without considering vendor's BBT > information. Vendor's information may be unavailable if the NAND > controller has a different DATA & OOB layout or this information may be > allready purged. > > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Pushed to l2-mtd-2.6.git, and the nandsim patch as well. git.infradead.org is down now for some reasons, but when it is up, I'll push my tree out.
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index b7b63cf..a27984c 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -999,7 +999,8 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc continue; /* Create the table in memory by scanning the chip(s) */ - create_bbt(mtd, buf, bd, chipsel); + if (!(this->options & NAND_CREATE_EMPTY_BBT)) + create_bbt(mtd, buf, bd, chipsel); td->version[i] = 1; if (md) diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h index ba15b52..57cc0e6 100644 --- a/include/linux/mtd/bbm.h +++ b/include/linux/mtd/bbm.h @@ -84,7 +84,7 @@ struct nand_bbt_descr { #define NAND_BBT_PERCHIP 0x00000080 /* bbt has a version counter at offset veroffs */ #define NAND_BBT_VERSION 0x00000100 -/* Create a bbt if none axists */ +/* Create a bbt if none exists */ #define NAND_BBT_CREATE 0x00000200 /* Search good / bad pattern through all pages of a block */ #define NAND_BBT_SCANALLPAGES 0x00000400 diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 27e3d0a..d34b912 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -223,6 +223,8 @@ typedef enum { * the OOB area */ #define NAND_USE_FLASH_BBT_NO_OOB 0x00100000 +/* Create an empty BBT with no vendor information if the BBT is available */ +#define NAND_CREATE_EMPTY_BBT 0x00200000 /* Options set by nand scan */ /* Nand scan has allocated controller struct */
it will create an empty BBT table without considering vendor's BBT information. Vendor's information may be unavailable if the NAND controller has a different DATA & OOB layout or this information may be allready purged. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- drivers/mtd/nand/nand_bbt.c | 3 ++- include/linux/mtd/bbm.h | 2 +- include/linux/mtd/nand.h | 2 ++ 3 files changed, 5 insertions(+), 2 deletions(-)