arch/blackfin/include/asm/nand.h

   1 /*
   2  * BF5XX - NAND flash controller platfrom_device info
   3  *
   4  * Copyright 2007-2008 Analog Devices, Inc.
   5  *
   6  * Licensed under the GPL-2
   7  */
   8
   9 /* struct bf5xx_nand_platform
  10  *
  11  * define a interface between platfrom board specific code and
  12  * bf54x NFC driver.
  13  *
  14  * nr_partitions = number of partitions pointed to be partitoons (or zero)
  15  * partitions    = mtd partition list
  16  */
  17
  18 #define NFC_PG_SIZE_256         0
  19 #define NFC_PG_SIZE_512         1
  20 #define NFC_PG_SIZE_OFFSET      9
  21
  22 #define NFC_NWIDTH_8            0
  23 #define NFC_NWIDTH_16           1
  24 #define NFC_NWIDTH_OFFSET       8
  25
  26 #define NFC_RDDLY_OFFSET        4
  27 #define NFC_WRDLY_OFFSET        0
  28
  29 #define NFC_STAT_NBUSY          1
  30
  31 struct bf5xx_nand_platform {
  32         /* NAND chip information */
  33         unsigned short          page_size;
  34         unsigned short          data_width;
  35
  36         /* RD/WR strobe delay timing information, all times in SCLK cycles */
  37         unsigned short          rd_dly;
  38         unsigned short          wr_dly;
  39
  40         /* NAND MTD partition information */
  41         int                     nr_partitions;
  42         struct mtd_partition    *partitions;
  43 };