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[ARM] 4391/1: make at91 debug unit support optional
[linux-2.6.git] / include / asm-arm / arch-at91 / cpu.h
1 /*
2  * include/asm-arm/arch-at91/cpu.h
3  *
4  *  Copyright (C) 2006 SAN People
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  */
12
13 #ifndef __ASM_ARCH_CPU_H
14 #define __ASM_ARCH_CPU_H
15
16 #include <asm/hardware.h>
17 #include <asm/arch/at91_dbgu.h>
18
19
20 #define ARCH_ID_AT91RM9200      0x09290780
21 #define ARCH_ID_AT91SAM9260     0x019803a0
22 #define ARCH_ID_AT91SAM9261     0x019703a0
23 #define ARCH_ID_AT91SAM9263     0x019607a0
24
25 #define ARCH_ID_AT91SAM9XE128   0x329973a0
26 #define ARCH_ID_AT91SAM9XE256   0x329a93a0
27 #define ARCH_ID_AT91SAM9XE512   0x329aa3a0
28
29 #define ARCH_ID_AT91SAM9RL64    0x019b03a0
30
31 static inline unsigned long at91_cpu_identify(void)
32 {
33         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
34 }
35
36
37 #define ARCH_FAMILY_AT91X92     0x09200000
38 #define ARCH_FAMILY_AT91SAM9    0x01900000
39 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
40
41 static inline unsigned long at91_arch_identify(void)
42 {
43         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
44 }
45
46
47 #ifdef CONFIG_ARCH_AT91RM9200
48 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
49 #else
50 #define cpu_is_at91rm9200()     (0)
51 #endif
52
53 #ifdef CONFIG_ARCH_AT91SAM9260
54 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
55 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
56 #else
57 #define cpu_is_at91sam9xe()     (0)
58 #define cpu_is_at91sam9260()    (0)
59 #endif
60
61 #ifdef CONFIG_ARCH_AT91SAM9261
62 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
63 #else
64 #define cpu_is_at91sam9261()    (0)
65 #endif
66
67 #ifdef CONFIG_ARCH_AT91SAM9263
68 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
69 #else
70 #define cpu_is_at91sam9263()    (0)
71 #endif
72
73 #ifdef CONFIG_ARCH_AT91SAM9RL
74 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
75 #else
76 #define cpu_is_at91sam9rl()     (0)
77 #endif
78
79
80 /*
81  * Since this is ARM, we will never run on any AVR32 CPU. But these
82  * definitions may reduce clutter in common drivers.
83  */
84 #define cpu_is_at32ap7000()     (0)
85
86 #endif