1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1999 by Kaz Kojima
7 *
8 * Defitions for the address spaces of the SH CPUs.
9 */
10#ifndef __ASM_SH_ADDRSPACE_H
11#define __ASM_SH_ADDRSPACE_H
12#ifdef __KERNEL__
13
14#include <asm/cpu/addrspace.h>
15
16/* Memory segments (32bit Privileged mode addresses)  */
17#ifndef CONFIG_CPU_SH2A
18#define P0SEG		0x00000000
19#define P1SEG		0x80000000
20#define P2SEG		0xa0000000
21#define P3SEG		0xc0000000
22#define P4SEG		0xe0000000
23#else
24#define P0SEG		0x00000000
25#define P1SEG		0x00000000
26#define P2SEG		0x20000000
27#define P3SEG		0x00000000
28#define P4SEG 		0x80000000
29#endif
30
31/* Returns the privileged segment base of a given address  */
32#define PXSEG(a)	(((unsigned long)(a)) & 0xe0000000)
33
34/* Returns the physical address of a PnSEG (n=1,2) address   */
35#define PHYSADDR(a)	(((unsigned long)(a)) & 0x1fffffff)
36
37/*
38 * Map an address to a certain privileged segment
39 */
40#define P1SEGADDR(a)	((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG))
41#define P2SEGADDR(a)	((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG))
42#define P3SEGADDR(a)	((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG))
43#define P4SEGADDR(a)	((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG))
44
45#endif /* __KERNEL__ */
46#endif /* __ASM_SH_ADDRSPACE_H */
47