| /* |
| * linux/include/asm-arm/arch-integrator/memory.h |
| * |
| * Copyright (C) 1999 ARM Limited |
| * |
| * 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. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #ifndef __ASM_ARCH_MEMORY_H |
| #define __ASM_ARCH_MEMORY_H |
| |
| /* |
| * Physical DRAM offset. |
| */ |
| #define PHYS_OFFSET UL(0x00000000) |
| #define BUS_OFFSET UL(0x80000000) |
| |
| /* |
| * 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. |
| */ |
| #define __virt_to_bus(x) (x - PAGE_OFFSET + BUS_OFFSET) |
| #define __bus_to_virt(x) (x - BUS_OFFSET + PAGE_OFFSET) |
| |
| #endif |
