1/* 2 * linux/include/asm-arm/arch-netx/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