LXR linux/include/asm-blackfin/nand.h

   1/* linux/include/asm-blackfin/nand.h
   2 *
   3 * Copyright (c) 2007 Analog Devices, Inc.
   4 *      Bryan Wu <bryan.wu@analog.com>
   5 *
   6 * BF5XX - NAND flash 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 bf5xx_nand_platform
  14 *
  15 * define a interface between platfrom board specific code and
  16 * bf54x NFC driver.
  17 *
  18 * nr_partitions = number of partitions pointed to be partitoons (or zero)
  19 * partitions    = mtd partition list
  20 */
  21
  22#define NFC_PG_SIZE_256         0
  23#define NFC_PG_SIZE_512         1
  24#define NFC_PG_SIZE_OFFSET      9
  25
  26#define NFC_NWIDTH_8            0
  27#define NFC_NWIDTH_16           1
  28#define NFC_NWIDTH_OFFSET       8
  29
  30#define NFC_RDDLY_OFFSET        4
  31#define NFC_WRDLY_OFFSET        0
  32
  33#define NFC_STAT_NBUSY          1
  34
  35struct bf5xx_nand_platform {
  36        /* NAND chip information */
  37        unsigned short          page_size;
  38        unsigned short          data_width;
  39
  40        /* RD/WR strobe delay timing information, all times in SCLK cycles */
  41        unsigned short          rd_dly;
  42        unsigned short          wr_dly;
  43
  44        /* NAND MTD partition information */
  45        int                     nr_partitions;
  46        struct mtd_partition    *partitions;
  47};
  48