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nand.h

/* arch/arm/mach-s3c2410/include/mach/nand.h
 *
 * Copyright (c) 2004 Simtec Electronics
 *    Ben Dooks <ben@simtec.co.uk>
 *
 * S3C2410 - NAND device controller platfrom_device info
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

/**
 * struct s3c2410_nand_set - define a set of one or more nand chips
 * @disable_ecc:  Entirely disable ECC - Dangerous
 * @flash_bbt:          Openmoko u-boot can create a Bad Block Table
 *                Setting this flag will allow the kernel to
 *                look for it at boot time and also skip the NAND
 *                scan.
 * @nr_chips:           Number of chips in this set
 * @nr_partitions:      Number of partitions pointed to by @partitions
 * @name:         Name of set (optional)
 * @nr_map:       Map for low-layer logical to physical chip numbers (option)
 * @partitions:         The mtd partition list
 *
 * define a set of one or more nand chips registered with an unique mtd. Also
 * allows to pass flag to the underlying NAND layer. 'disable_ecc' will trigger
 * a warning at boot time.
 */
00030 struct s3c2410_nand_set {
      unsigned int            disable_ecc:1;
      unsigned int            flash_bbt:1;

      int               nr_chips;
      int               nr_partitions;
      char              *name;
      int               *nr_map;
      struct mtd_partition    *partitions;
      struct nand_ecclayout   *ecc_layout;
};

00042 struct s3c2410_platform_nand {
      /* timing information for controller, all times in nanoseconds */

      int   tacls;      /* time for active CLE/ALE to nWE/nOE */
      int   twrph0;     /* active time for nWE/nOE */
      int   twrph1;     /* time for release CLE/ALE from nWE/nOE inactive */

      unsigned int      ignore_unset_ecc:1;

      int               nr_sets;
      struct s3c2410_nand_set *sets;

      void              (*select_chip)(struct s3c2410_nand_set *,
                                     int chip);
};


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