include/asm-arm/arch-mxc/memory.h

   1 /*
   2  * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
   3  */
   4
   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 #ifndef __ASM_ARCH_MXC_MEMORY_H__
  12 #define __ASM_ARCH_MXC_MEMORY_H__
  13
  14 #include <asm/hardware.h>
  15
  16 /*!
  17  * @file memory.h
  18  * @brief This file contains macros needed by the Linux kernel and drivers.
  19  *
  20  * @ingroup Memory
  21  */
  22
  23 /*!
  24  * Virtual view <-> DMA view memory address translations
  25  * This macro is used to translate the virtual address to an address
  26  * suitable to be passed to set_dma_addr()
  27  */
  28 #define __virt_to_bus(a)        __virt_to_phys(a)
  29
  30 /*!
  31  * Used to convert an address for DMA operations to an address that the
  32  * kernel can use.
  33  */
  34 #define __bus_to_virt(a)        __phys_to_virt(a)
  35
  36 #endif                          /* __ASM_ARCH_MXC_MEMORY_H__ */