arch/arm/plat-s3c/include/plat/nand.h

   1 /* arch/arm/mach-s3c2410/include/mach/nand.h
   2  *
   3  * Copyright (c) 2004 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * S3C2410 - NAND device controller platfrom_device info
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11 */
  12
  13 /* struct s3c2410_nand_set
  14  *
  15  * define an set of one or more nand chips registered with an unique mtd
  16  *
  17  * nr_chips      = number of chips in this set
  18  * nr_partitions = number of partitions pointed to be partitoons (or zero)
  19  * name          = name of set (optional)
  20  * nr_map        = map for low-layer logical to physical chip numbers (option)
  21  * partitions    = mtd partition list
  22 */
  23
  24 struct s3c2410_nand_set {
  25         unsigned int            disable_ecc : 1;
  26
  27         int                     nr_chips;
  28         int                     nr_partitions;
  29         char                    *name;
  30         int                     *nr_map;
  31         struct mtd_partition    *partitions;
  32         struct nand_ecclayout   *ecc_layout;
  33 };
  34
  35 struct s3c2410_platform_nand {
  36         /* timing information for controller, all times in nanoseconds */
  37
  38         int     tacls;  /* time for active CLE/ALE to nWE/nOE */
  39         int     twrph0; /* active time for nWE/nOE */
  40         int     twrph1; /* time for release CLE/ALE from nWE/nOE inactive */
  41
  42         unsigned int    ignore_unset_ecc : 1;
  43
  44         int                     nr_sets;
  45         struct s3c2410_nand_set *sets;
  46
  47         void                    (*select_chip)(struct s3c2410_nand_set *,
  48                                                int chip);
  49 };
  50