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author | Wolfgang Denk <wd@denx.de> | 2008-11-01 16:18:43 +0100 |
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committer | Wolfgang Denk <wd@denx.de> | 2008-11-01 16:18:43 +0100 |
commit | 3ec53148eb68ddfb0c3311fb4c06cd2bd0ef3eeb (patch) | |
tree | 2f780547f462895413e6e26dd6e331824bed35f0 /include/linux/mtd/nand.h | |
parent | b24ef56587a2a9295de55e526a365e6af3ab2581 (diff) | |
parent | a47f957ab523019992fdef857af01bd71c58a4da (diff) | |
download | u-boot-imx-3ec53148eb68ddfb0c3311fb4c06cd2bd0ef3eeb.zip u-boot-imx-3ec53148eb68ddfb0c3311fb4c06cd2bd0ef3eeb.tar.gz u-boot-imx-3ec53148eb68ddfb0c3311fb4c06cd2bd0ef3eeb.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot-nand-flash
Diffstat (limited to 'include/linux/mtd/nand.h')
-rw-r--r-- | include/linux/mtd/nand.h | 70 |
1 files changed, 1 insertions, 69 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 39f8aec..24ad2bd 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -29,6 +29,7 @@ #include "linux/mtd/compat.h" #include "linux/mtd/mtd.h" +#include "linux/mtd/bbm.h" struct mtd_info; @@ -480,75 +481,6 @@ extern struct nand_manufacturers nand_manuf_ids[]; #define NAND_MAX_CHIPS 8 #endif -/** - * struct nand_bbt_descr - bad block table descriptor - * @options: options for this descriptor - * @pages: the page(s) where we find the bbt, used with option BBT_ABSPAGE - * when bbt is searched, then we store the found bbts pages here. - * Its an array and supports up to 8 chips now - * @offs: offset of the pattern in the oob area of the page - * @veroffs: offset of the bbt version counter in the oob are of the page - * @version: version read from the bbt page during scan - * @len: length of the pattern, if 0 no pattern check is performed - * @maxblocks: maximum number of blocks to search for a bbt. This number of - * blocks is reserved at the end of the device where the tables are - * written. - * @reserved_block_code: if non-0, this pattern denotes a reserved (rather than - * bad) block in the stored bbt - * @pattern: pattern to identify bad block table or factory marked good / - * bad blocks, can be NULL, if len = 0 - * - * Descriptor for the bad block table marker and the descriptor for the - * pattern which identifies good and bad blocks. The assumption is made - * that the pattern and the version count are always located in the oob area - * of the first block. - */ -struct nand_bbt_descr { - int options; - int pages[NAND_MAX_CHIPS]; - int offs; - int veroffs; - uint8_t version[NAND_MAX_CHIPS]; - int len; - int maxblocks; - int reserved_block_code; - uint8_t *pattern; -}; - -/* Options for the bad block table descriptors */ - -/* The number of bits used per block in the bbt on the device */ -#define NAND_BBT_NRBITS_MSK 0x0000000F -#define NAND_BBT_1BIT 0x00000001 -#define NAND_BBT_2BIT 0x00000002 -#define NAND_BBT_4BIT 0x00000004 -#define NAND_BBT_8BIT 0x00000008 -/* The bad block table is in the last good block of the device */ -#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 axists */ -#define NAND_BBT_CREATE 0x00000200 -/* Search good / bad pattern through all pages of a block */ -#define NAND_BBT_SCANALLPAGES 0x00000400 -/* Scan block empty during good / bad block scan */ -#define NAND_BBT_SCANEMPTY 0x00000800 -/* Write bbt if neccecary */ -#define NAND_BBT_WRITE 0x00001000 -/* Read and write back block contents when writing bbt */ -#define NAND_BBT_SAVECONTENT 0x00002000 -/* Search good / bad pattern on the first and the second page */ -#define NAND_BBT_SCAN2NDPAGE 0x00004000 - -/* The maximum number of blocks to scan for a bbt */ -#define NAND_BBT_SCAN_MAXBLOCKS 4 - extern int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd); extern int nand_update_bbt(struct mtd_info *mtd, loff_t offs); extern int nand_default_bbt(struct mtd_info *mtd); |