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c4713074 | 1 | /* |
a09e64fb | 2 | * arch/arm/mach-ixp23xx/include/mach/memory.h |
c4713074 LB |
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 | ||
a09e64fb | 15 | #include <mach/hardware.h> |
c4713074 LB |
16 | |
17 | /* | |
18 | * Physical DRAM offset. | |
19 | */ | |
20 | #define PHYS_OFFSET (0x00000000) | |
21 | ||
c4713074 LB |
22 | #define __virt_to_bus(v) \ |
23 | ({ unsigned int ret; \ | |
24 | ret = ((__virt_to_phys(v) - 0x00000000) + \ | |
25 | (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0)); \ | |
26 | ret; }) | |
27 | ||
28 | #define __bus_to_virt(b) \ | |
29 | ({ unsigned int data; \ | |
30 | data = *((volatile int *)IXP23XX_PCI_SDRAM_BAR); \ | |
31 | __phys_to_virt((((b - (data & 0xfffffff0)) + 0x00000000))); }) | |
32 | ||
c041ffb3 | 33 | #define arch_is_coherent() 1 |
23759dc6 | 34 | |
c4713074 | 35 | #endif |