projects / linux-2.6 / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/include/asm-arm/arch-ixp2000/memory.h | |
| 3 | * | |
| 4 | * Copyright (c) 2002 Intel Corp. | |
| 5 | * Copyright (c) 2003-2004 MontaVista Software, Inc. | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License as published by the | |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 10 | * option) any later version. | |
| 11 | */ | |
| 12 | ||
| 13 | #ifndef __ASM_ARCH_MEMORY_H | |
| 14 | #define __ASM_ARCH_MEMORY_H | |
| 15 | ||
| f09b9979 | 16 | #define PHYS_OFFSET UL(0x00000000) |
| 1da177e4 LT |
17 | |
| 18 | /* | |
| 19 | * Virtual view <-> DMA view memory address translations | |
| 20 | * virt_to_bus: Used to translate the virtual address to an | |
| 21 | * address suitable to be passed to set_dma_addr | |
| 22 | * bus_to_virt: Used to convert an address for DMA operations | |
| 23 | * to an address that the kernel can use. | |
| 24 | */ | |
| 25 | #include <asm/arch/ixp2000-regs.h> | |
| 26 | ||
| 27 | #define __virt_to_bus(v) \ | |
| 28 | (((__virt_to_phys(v) - 0x0) + (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0))) | |
| 29 | ||
| 30 | #define __bus_to_virt(b) \ | |
| 31 | __phys_to_virt((((b - (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)) + 0x0))) | |
| 32 | ||
| 33 | #endif | |
| 34 |