arch/arm/mach-netx/include/mach/memory.h

   1 /*
   2  *  arch/arm/mach-netx/include/mach/memory.h
   3  *
   4  * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
   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
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #ifndef __ASM_ARCH_MEMORY_H
  21 #define __ASM_ARCH_MEMORY_H
  22
  23 #define PHYS_OFFSET UL(0x80000000)
  24
  25 /*
  26  * Virtual view <-> DMA view memory address translations
  27  * virt_to_bus: Used to translate the virtual address to an
  28  *              address suitable to be passed to set_dma_addr
  29  * bus_to_virt: Used to convert an address for DMA operations
  30  *              to an address that the kernel can use.
  31  */
  32 #define __virt_to_bus(x)         __virt_to_phys(x)
  33 #define __bus_to_virt(x)         __phys_to_virt(x)
  34
  35 #endif
  36