/* * linux/include/asm-arm/arch-ixp2000/memory.h * * Copyright (c) 2002 Intel Corp. * Copyright (c) 2003-2004 MontaVista Software, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #ifndef __ASM_ARCH_MEMORY_H #define __ASM_ARCH_MEMORY_H #define PHYS_OFFSET UL(0x00000000) /* * Virtual view <-> DMA view memory address translations * virt_to_bus: Used to translate the virtual address to an * address suitable to be passed to set_dma_addr * bus_to_virt: Used to convert an address for DMA operations * to an address that the kernel can use. */ #include #define __virt_to_bus(v) \ (((__virt_to_phys(v) - 0x0) + (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0))) #define __bus_to_virt(b) \ __phys_to_virt((((b - (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)) + 0x0))) #endif