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

   1 /*
   2  * omap iommu: main structures
   3  *
   4  * Copyright (C) 2008-2009 Nokia Corporation
   5  *
   6  * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
   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 #define MMU_REG_SIZE            256
  14
  15 /**
  16  * struct iommu_arch_data - omap iommu private data
  17  * @name: name of the iommu device
  18  * @iommu_dev: handle of the iommu device
  19  *
  20  * This is an omap iommu private data object, which binds an iommu user
  21  * to its iommu device. This object should be placed at the iommu user's
  22  * dev_archdata so generic IOMMU API can be used without having to
  23  * utilize omap-specific plumbing anymore.
  24  */
  25 struct omap_iommu_arch_data {
  26         const char *name;
  27         struct omap_iommu *iommu_dev;
  28 };
  29
  30 /**
  31  * struct omap_mmu_dev_attr - OMAP mmu device attributes for omap_hwmod
  32  * @da_start:           device address where the va space starts.
  33  * @da_end:             device address where the va space ends.
  34  * @nr_tlb_entries:     number of entries supported by the translation
  35  *                      look-aside buffer (TLB).
  36  */
  37 struct omap_mmu_dev_attr {
  38         u32 da_start;
  39         u32 da_end;
  40         int nr_tlb_entries;
  41 };
  42
  43 struct iommu_platform_data {
  44         const char *name;
  45         const char *clk_name;
  46         const int nr_tlb_entries;
  47         u32 da_start;
  48         u32 da_end;
  49 };