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

   1 /*
   2  * arch/arm/plat-omap/include/mach/nand.h
   3  *
   4  * Copyright (C) 2006 Micron Technology Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <plat/gpmc.h>
  12 #include <linux/mtd/partitions.h>
  13
  14 enum nand_io {
  15         NAND_OMAP_PREFETCH_POLLED = 0,  /* prefetch polled mode, default */
  16         NAND_OMAP_POLLED,               /* polled mode, without prefetch */
  17         NAND_OMAP_PREFETCH_DMA,         /* prefetch enabled sDMA mode */
  18         NAND_OMAP_PREFETCH_IRQ          /* prefetch enabled irq mode */
  19 };
  20
  21 struct omap_nand_platform_data {
  22         int                     cs;
  23         struct mtd_partition    *parts;
  24         struct gpmc_timings     *gpmc_t;
  25         int                     nr_parts;
  26         bool                    dev_ready;
  27         int                     gpmc_irq;
  28         enum nand_io            xfer_type;
  29         unsigned long           phys_base;
  30         int                     devsize;
  31         enum omap_ecc           ecc_opt;
  32 };
  33
  34 /* minimum size for IO mapping */
  35 #define NAND_IO_SIZE    4
  36
  37 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
  38 extern int gpmc_nand_init(struct omap_nand_platform_data *d);
  39 #else
  40 static inline int gpmc_nand_init(struct omap_nand_platform_data *d)
  41 {
  42         return 0;
  43 }
  44 #endif