| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-integrator/include/mach/memory.h |
| 3 | * |
| 4 | * Copyright (C) 1999 ARM Limited |
| 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 as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #ifndef __ASM_ARCH_MEMORY_H |
| 21 | #define __ASM_ARCH_MEMORY_H |
| 22 | |
| 23 | /* |
| 24 | * Physical DRAM offset. |
| 25 | */ |
| 26 | #define PHYS_OFFSET UL(0x00000000) |
| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 27 | |
| Nicolas Pitre | b5ee900 | 2008-09-05 21:53:30 -0400 | [diff] [blame] | 28 | #define BUS_OFFSET UL(0x80000000) |
| Russell King | cd32a48 | 2008-11-30 11:44:11 +0000 | [diff] [blame] | 29 | #define __virt_to_bus(x) ((x) - PAGE_OFFSET + BUS_OFFSET) |
| 30 | #define __bus_to_virt(x) ((x) - BUS_OFFSET + PAGE_OFFSET) |
| Russell King | ce63e6b | 2009-10-25 22:42:38 +0000 | [diff] [blame] | 31 | #define __pfn_to_bus(x) (((x) << PAGE_SHIFT) + BUS_OFFSET) |
| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 32 | |
| 33 | #endif |