merged tx6dl-devel into denx master branch

[karo-tx-uboot.git] / include / linux / mtd / bbm.h

diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index 25a3d3a3d1529629ad52daf433c9528bdaea9f36..94130aa774cb51fd9a5171520ec8cf76b591e62e 100644 (file)
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -4,10 +4,10 @@
  *  NAND family Bad Block Management (BBM) header file
  *    - Bad Block Table (BBT) implementation
  *
- *  Copyright (c) 2005-2007 Samsung Electronics
+ *  Copyright © 2005 Samsung Electronics
  *  Kyungmin Park <kyungmin.park@samsung.com>
  *
- *  Copyright (c) 2000-2005
+ *  Copyright © 2000-2005
  *  Thomas Gleixner <tglx@linuxtronix.de>
  *
  * SPDX-License-Identifier:    GPL-2.0+
@@ -22,22 +22,21 @@
 
 /**
  * struct nand_bbt_descr - bad block table descriptor
- * @param options      options for this descriptor
- * @param 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
- * @param offs         offset of the pattern in the oob area of the page
- * @param veroffs      offset of the bbt version counter in the oob are of the page
- * @param version      version read from the bbt page during scan
- * @param len          length of the pattern, if 0 no pattern check is performed
- * @param 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.
- * @param reserved_block_code  if non-0, this pattern denotes a reserved
- *                     (rather than bad) block in the stored bbt
- * @param pattern      pattern to identify bad block table or factory marked
- *                     good / bad blocks, can be NULL, if len = 0
+ * @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
@@ -122,22 +121,27 @@ struct nand_bbt_descr {
 /*
  * Constants for oob configuration
  */
-#define ONENAND_BADBLOCK_POS   0
+#define NAND_SMALL_BADBLOCK_POS                5
+#define NAND_LARGE_BADBLOCK_POS                0
+#define ONENAND_BADBLOCK_POS           0
 
 /*
  * Bad block scanning errors
  */
-#define ONENAND_BBT_READ_ERROR          1
-#define ONENAND_BBT_READ_ECC_ERROR      2
-#define ONENAND_BBT_READ_FATAL_ERROR    4
+#define ONENAND_BBT_READ_ERROR         1
+#define ONENAND_BBT_READ_ECC_ERROR     2
+#define ONENAND_BBT_READ_FATAL_ERROR   4
 
 /**
- * struct bbt_info - [GENERIC] Bad Block Table data structure
- * @param bbt_erase_shift      [INTERN] number of address bits in a bbt entry
- * @param badblockpos          [INTERN] position of the bad block marker in the oob area
- * @param bbt                  [INTERN] bad block table pointer
- * @param badblock_pattern     [REPLACEABLE] bad block scan pattern used for initial bad block scan
- * @param priv                 [OPTIONAL] pointer to private bbm date
+ * struct bbm_info - [GENERIC] Bad Block Table data structure
+ * @bbt_erase_shift:   [INTERN] number of address bits in a bbt entry
+ * @badblockpos:       [INTERN] position of the bad block marker in the oob area
+ * @options:           options for this descriptor
+ * @bbt:               [INTERN] bad block table pointer
+ * @isbad_bbt:         function to determine if a block is bad
+ * @badblock_pattern:  [REPLACEABLE] bad block scan pattern used for
+ *                     initial bad block scan
+ * @priv:              [OPTIONAL] pointer to private bbm date
  */
 struct bbm_info {
        int bbt_erase_shift;
@@ -146,7 +150,7 @@ struct bbm_info {
 
        uint8_t *bbt;
 
-       int (*isbad_bbt) (struct mtd_info * mtd, loff_t ofs, int allowbbt);
+       int (*isbad_bbt)(struct mtd_info *mtd, loff_t ofs, int allowbbt);
 
        /* TODO Add more NAND specific fileds */
        struct nand_bbt_descr *badblock_pattern;
@@ -155,7 +159,7 @@ struct bbm_info {
 };
 
 /* OneNAND BBT interface */
-extern int onenand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd);
-extern int onenand_default_bbt (struct mtd_info *mtd);
+extern int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd);
+extern int onenand_default_bbt(struct mtd_info *mtd);
 
-#endif                         /* __LINUX_MTD_BBM_H */
+#endif /* __LINUX_MTD_BBM_H */