| /* |
| * arch/arm/mach-footbridge/include/mach/memory.h |
| * |
| * Copyright (C) 1996-1999 Russell King. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * Changelog: |
| * 20-Oct-1996 RMK Created |
| * 31-Dec-1997 RMK Fixed definitions to reduce warnings. |
| * 17-May-1998 DAG Added __virt_to_bus and __bus_to_virt functions. |
| * 21-Nov-1998 RMK Changed __virt_to_bus and __bus_to_virt to macros. |
| * 21-Mar-1999 RMK Added PAGE_OFFSET for co285 architecture. |
| * Renamed to memory.h |
| * Moved PAGE_OFFSET and TASK_SIZE here |
| */ |
| #ifndef __ASM_ARCH_MEMORY_H |
| #define __ASM_ARCH_MEMORY_H |
| |
| |
| #if defined(CONFIG_FOOTBRIDGE_ADDIN) |
| /* |
| * If we may be using add-in footbridge mode, then we must |
| * use the out-of-line translation that makes use of the |
| * PCI BAR |
| */ |
| #ifndef __ASSEMBLY__ |
| extern unsigned long __virt_to_bus(unsigned long); |
| extern unsigned long __bus_to_virt(unsigned long); |
| #endif |
| |
| #elif defined(CONFIG_FOOTBRIDGE_HOST) |
| |
| #define __virt_to_bus(x) ((x) - 0xe0000000) |
| #define __bus_to_virt(x) ((x) + 0xe0000000) |
| |
| #else |
| |
| #error "Undefined footbridge mode" |
| |
| #endif |
| |
| /* |
| * Cache flushing area. |
| */ |
| #define FLUSH_BASE 0xf9000000 |
| |
| /* |
| * Physical DRAM offset. |
| */ |
| #define PHYS_OFFSET UL(0x00000000) |
| |
| #define FLUSH_BASE_PHYS 0x50000000 |
| |
| #endif |