1/* 2 * arch/arm/mach-ixp2000/include/mach/memory.h 3 * 4 * Copyright (c) 2002 Intel Corp. 5 * Copyright (c) 2003-2004 MontaVista Software, Inc. 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 */ 12 13#ifndef __ASM_ARCH_MEMORY_H 14#define __ASM_ARCH_MEMORY_H 15 16#define PHYS_OFFSET UL(0x00000000) 17 18#include <mach/ixp2000-regs.h> 19 20#define IXP2000_PCI_SDRAM_OFFSET (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0) 21 22#define __phys_to_bus(x) ((x) + (IXP2000_PCI_SDRAM_OFFSET - PHYS_OFFSET)) 23#define __bus_to_phys(x) ((x) - (IXP2000_PCI_SDRAM_OFFSET - PHYS_OFFSET)) 24 25#define __virt_to_bus(v) __phys_to_bus(__virt_to_phys(v)) 26#define __bus_to_virt(b) __phys_to_virt(__bus_to_phys(b)) 27#define __pfn_to_bus(p) __phys_to_bus(__pfn_to_phys(p)) 28#define __bus_to_pfn(b) __phys_to_pfn(__bus_to_phys(b)) 29 30#endif 31