| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-ixp23xx/include/mach/memory.h |
| 3 | * |
| 4 | * Copyright (c) 2003-2004 Intel Corp. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your |
| 9 | * option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #ifndef __ASM_ARCH_MEMORY_H |
| 13 | #define __ASM_ARCH_MEMORY_H |
| 14 | |
| 15 | #include <mach/hardware.h> |
| 16 | |
| 17 | /* |
| 18 | * Physical DRAM offset. |
| 19 | */ |
| 20 | #define PHYS_OFFSET (0x00000000) |
| 21 | |
| Russell King | c7baab5 | 2009-12-12 14:53:08 +0000 | [diff] [blame^] | 22 | #define IXP23XX_PCI_SDRAM_OFFSET (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0)) |
| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 23 | |
| Russell King | c7baab5 | 2009-12-12 14:53:08 +0000 | [diff] [blame^] | 24 | #define __phys_to_bus(x) ((x) + (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET)) |
| 25 | #define __bus_to_phys(x) ((x) - (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET)) |
| 26 | |
| 27 | #define __virt_to_bus(v) __phys_to_bus(__virt_to_phys(v)) |
| 28 | #define __bus_to_virt(b) __phys_to_virt(__bus_to_phys(b)) |
| 29 | #define __pfn_to_bus(p) __phys_to_bus(__pfn_to_phys(p)) |
| 30 | #define __bus_to_pfn(b) __phys_to_pfn(__bus_to_phys(b)) |
| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 31 | |
| 32 | #define arch_is_coherent() 1 |
| 33 | |
| 34 | #endif |