[ARM] 4427/1: base Atmel at91x40 architecture defines
[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 #define ARCH_ID_AT91M40800      0x14080044
32 #define ARCH_ID_AT91R40807      0x44080746
33 #define ARCH_ID_AT91M40807      0x14080745
34 #define ARCH_ID_AT91R40008      0x44000840
35
36 static inline unsigned long at91_cpu_identify(void)
37 {
38         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
39 }
40
41
42 #define ARCH_FAMILY_AT91X92     0x09200000
43 #define ARCH_FAMILY_AT91SAM9    0x01900000
44 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
45
46 static inline unsigned long at91_arch_identify(void)
47 {
48         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
49 }
50
51
52 #ifdef CONFIG_ARCH_AT91RM9200
53 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
54 #else
55 #define cpu_is_at91rm9200()     (0)
56 #endif
57
58 #ifdef CONFIG_ARCH_AT91SAM9260
59 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
60 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
61 #else
62 #define cpu_is_at91sam9xe()     (0)
63 #define cpu_is_at91sam9260()    (0)
64 #endif
65
66 #ifdef CONFIG_ARCH_AT91SAM9261
67 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
68 #else
69 #define cpu_is_at91sam9261()    (0)
70 #endif
71
72 #ifdef CONFIG_ARCH_AT91SAM9263
73 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
74 #else
75 #define cpu_is_at91sam9263()    (0)
76 #endif
77
78 #ifdef CONFIG_ARCH_AT91SAM9RL
79 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
80 #else
81 #define cpu_is_at91sam9rl()     (0)
82 #endif
83
84
85 /*
86  * Since this is ARM, we will never run on any AVR32 CPU. But these
87  * definitions may reduce clutter in common drivers.
88  */
89 #define cpu_is_at32ap7000()     (0)
90
91 #endif