| /* |
| * linux/include/asm-arm/arch-ixp4xx/memory.h |
| * |
| * Copyright (c) 2001-2004 MontaVista Software, Inc. |
| */ |
| |
| #ifndef __ASM_ARCH_MEMORY_H |
| #define __ASM_ARCH_MEMORY_H |
| |
| #include <asm/sizes.h> |
| |
| /* |
| * Physical DRAM offset. |
| */ |
| #define PHYS_OFFSET UL(0x00000000) |
| |
| #if !defined(__ASSEMBLY__) && defined(CONFIG_PCI) |
| |
| void ixp4xx_adjust_zones(int node, unsigned long *size, unsigned long *holes); |
| |
| #define arch_adjust_zones(node, size, holes) \ |
| ixp4xx_adjust_zones(node, size, holes) |
| |
| #define ISA_DMA_THRESHOLD (SZ_64M - 1) |
| |
| #endif |
| |
| /* |
| * 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. |
| * |
| * These are dummies for now. |
| */ |
| #define __virt_to_bus(x) __virt_to_phys(x) |
| #define __bus_to_virt(x) __phys_to_virt(x) |
| |
| #endif |