Logo Search packages:      
Sourcecode: linux version File versions

memory.h

/*
 * arch/arm/mach-ixp2000/include/mach/memory.h
 *
 * Copyright (c) 2002 Intel Corp.
 * Copyright (c) 2003-2004 MontaVista Software, Inc.
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 */

#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H

#define PHYS_OFFSET     UL(0x00000000)

/*
 * Virtual view <-> DMA view memory address translations
 * virt_to_bus: Used to translate the virtual address to an
 *          address suitable to be passed to set_dma_addr
 * bus_to_virt: Used to convert an address for DMA operations
 *          to an address that the kernel can use.
 */
#include <mach/ixp2000-regs.h>

#define __virt_to_bus(v) \
      (((__virt_to_phys(v) - 0x0) + (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)))

#define __bus_to_virt(b) \
      __phys_to_virt((((b - (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)) + 0x0)))

#endif


Generated by  Doxygen 1.6.0   Back to index