1/*
2 * linux/include/asm-arm/arch-tbox/memory.h
3 *
4 * Copyright (c) 1996-1999 Russell King.
5 * Copyright (c) 1998-1999 Phil Blundell
6 */
7#ifndef __ASM_ARCH_MEMORY_H
8#define __ASM_ARCH_MEMORY_H
9
10/*
11 * Task size: 3GB
12 */
13#define TASK_SIZE	(0xc0000000UL)
14#define TASK_SIZE_26	(0x04000000UL)
15
16/*
17 * This decides where the kernel will search for a free chunk of vm
18 * space during mmap's.
19 */
20#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
21
22/*
23 * Page offset: 3GB
24 */
25#define PAGE_OFFSET		(0xc0000000UL)
26#define PHYS_OFFSET		(0x80000000UL)
27
28/*
29 * DRAM is contiguous
30 */
31#define __virt_to_phys(vpage) ((vpage) - PAGE_OFFSET + PHYS_OFFSET)
32#define __phys_to_virt(ppage) ((ppage) + PAGE_OFFSET - PHYS_OFFSET)
33#define __virt_to_phys__is_a_macro
34#define __phys_to_virt__is_a_macro
35
36/*
37 * Bus view is the same as physical view
38 */
39#define __virt_to_bus__is_a_macro
40#define __virt_to_bus(x)	__virt_to_phys(x)
41#define __bus_to_virt__is_a_macro
42#define __bus_to_virt(x)	__phys_to_virt(x)
43
44#define PHYS_TO_NID(addr)	(0)
45
46#endif
47