arch/blackfin/include/asm/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
  35 struct 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 };