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Haavard Skinnemoen5f97f7f2006-09-25 23:32:13 -07001/*
2 * Defitions for the address spaces of the AVR32 CPUs. Heavily based on
3 * include/asm-sh/addrspace.h
4 *
5 * Copyright (C) 2004-2006 Atmel Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __ASM_AVR32_ADDRSPACE_H
12#define __ASM_AVR32_ADDRSPACE_H
13
14#ifdef CONFIG_MMU
15
16/* Memory segments when segmentation is enabled */
17#define P0SEG 0x00000000
18#define P1SEG 0x80000000
19#define P2SEG 0xa0000000
20#define P3SEG 0xc0000000
21#define P4SEG 0xe0000000
22
23/* Returns the privileged segment base of a given address */
24#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000)
25
26/* Returns the physical address of a PnSEG (n=1,2) address */
27#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
28
29/*
30 * Map an address to a certain privileged segment
31 */
32#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
33 | P1SEG))
34#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
35 | P2SEG))
36#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
37 | P3SEG))
38#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
39 | P4SEG))
40
41#endif /* CONFIG_MMU */
42
43#endif /* __ASM_AVR32_ADDRSPACE_H */