diff options
Diffstat (limited to 'include/linux/mtd/bbm.h')
| -rw-r--r-- | include/linux/mtd/bbm.h | 49 |
1 files changed, 35 insertions, 14 deletions
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h index 8cbcdae1143..71292b1a86b 100644 --- a/include/linux/mtd/bbm.h +++ b/include/linux/mtd/bbm.h @@ -81,32 +81,53 @@ struct nand_bbt_descr { #define NAND_BBT_LASTBLOCK 0x00000010 /* The bbt is at the given page, else we must scan for the bbt */ #define NAND_BBT_ABSPAGE 0x00000020 -/* The bbt is at the given page, else we must scan for the bbt */ -#define NAND_BBT_SEARCH 0x00000040 /* bbt is stored per chip on multichip devices */ #define NAND_BBT_PERCHIP 0x00000080 /* bbt has a version counter at offset veroffs */ #define NAND_BBT_VERSION 0x00000100 /* Create a bbt if none exists */ #define NAND_BBT_CREATE 0x00000200 +/* + * Create an empty BBT with no vendor information. Vendor's information may be + * unavailable, for example, if the NAND controller has a different data and OOB + * layout or if this information is already purged. Must be used in conjunction + * with NAND_BBT_CREATE. + */ +#define NAND_BBT_CREATE_EMPTY 0x00000400 /* Search good / bad pattern through all pages of a block */ -#define NAND_BBT_SCANALLPAGES 0x00000400 +#define NAND_BBT_SCANALLPAGES 0x00000800 /* Scan block empty during good / bad block scan */ -#define NAND_BBT_SCANEMPTY 0x00000800 +#define NAND_BBT_SCANEMPTY 0x00001000 /* Write bbt if neccecary */ -#define NAND_BBT_WRITE 0x00001000 +#define NAND_BBT_WRITE 0x00002000 /* Read and write back block contents when writing bbt */ -#define NAND_BBT_SAVECONTENT 0x00002000 +#define NAND_BBT_SAVECONTENT 0x00004000 /* Search good / bad pattern on the first and the second page */ -#define NAND_BBT_SCAN2NDPAGE 0x00004000 +#define NAND_BBT_SCAN2NDPAGE 0x00008000 /* Search good / bad pattern on the last page of the eraseblock */ -#define NAND_BBT_SCANLASTPAGE 0x00008000 -/* Chip stores bad block marker on BOTH 1st and 6th bytes of OOB */ -#define NAND_BBT_SCANBYTE1AND6 0x00100000 -/* The nand_bbt_descr was created dynamicaly and must be freed */ -#define NAND_BBT_DYNAMICSTRUCT 0x00200000 -/* The bad block table does not OOB for marker */ -#define NAND_BBT_NO_OOB 0x00400000 +#define NAND_BBT_SCANLASTPAGE 0x00010000 +/* + * Use a flash based bad block table. By default, OOB identifier is saved in + * OOB area. This option is passed to the default bad block table function. + */ +#define NAND_BBT_USE_FLASH 0x00020000 +/* + * Do not store flash based bad block table marker in the OOB area; store it + * in-band. + */ +#define NAND_BBT_NO_OOB 0x00040000 +/* + * Do not write new bad block markers to OOB; useful, e.g., when ECC covers + * entire spare area. Must be used with NAND_BBT_USE_FLASH. + */ +#define NAND_BBT_NO_OOB_BBM 0x00080000 + +/* + * Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr + * was allocated dynamicaly and must be freed in nand_release(). Has no meaning + * in nand_chip.bbt_options. + */ +#define NAND_BBT_DYNAMICSTRUCT 0x80000000 /* The maximum number of blocks to scan for a bbt */ #define NAND_BBT_SCAN_MAXBLOCKS 4 |