arch/arm/mach-at91/include/mach/cpu.h

   1 /*
   2  * arch/arm/mach-at91/include/mach/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 <mach/hardware.h>
  17 #include <mach/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 #define ARCH_ID_AT91SAM9G10     0x819903a0
  25 #define ARCH_ID_AT91SAM9G20     0x019905a0
  26 #define ARCH_ID_AT91SAM9RL64    0x019b03a0
  27 #define ARCH_ID_AT91SAM9G45     0x819b05a0
  28 #define ARCH_ID_AT91CAP9        0x039A03A0
  29
  30 #define ARCH_ID_AT91SAM9XE128   0x329973a0
  31 #define ARCH_ID_AT91SAM9XE256   0x329a93a0
  32 #define ARCH_ID_AT91SAM9XE512   0x329aa3a0
  33
  34 #define ARCH_ID_AT91M40800      0x14080044
  35 #define ARCH_ID_AT91R40807      0x44080746
  36 #define ARCH_ID_AT91M40807      0x14080745
  37 #define ARCH_ID_AT91R40008      0x44000840
  38
  39 static inline unsigned long at91_cpu_identify(void)
  40 {
  41         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  42 }
  43
  44 #define ARCH_EXID_AT91SAM9M11   0x00000001
  45 #define ARCH_EXID_AT91SAM9M10   0x00000002
  46 #define ARCH_EXID_AT91SAM9G45   0x00000004
  47
  48 static inline unsigned long at91_exid_identify(void)
  49 {
  50         return at91_sys_read(AT91_DBGU_EXID);
  51 }
  52
  53
  54 #define ARCH_FAMILY_AT91X92     0x09200000
  55 #define ARCH_FAMILY_AT91SAM9    0x01900000
  56 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
  57
  58 static inline unsigned long at91_arch_identify(void)
  59 {
  60         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  61 }
  62
  63 #ifdef CONFIG_ARCH_AT91CAP9
  64 #include <mach/at91_pmc.h>
  65
  66 #define ARCH_REVISION_CAP9_B    0x399
  67 #define ARCH_REVISION_CAP9_C    0x601
  68
  69 static inline unsigned long at91cap9_rev_identify(void)
  70 {
  71         return (at91_sys_read(AT91_PMC_VER));
  72 }
  73 #endif
  74
  75 #ifdef CONFIG_ARCH_AT91RM9200
  76 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  77 #else
  78 #define cpu_is_at91rm9200()     (0)
  79 #endif
  80
  81 #ifdef CONFIG_ARCH_AT91SAM9260
  82 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  83 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  84 #else
  85 #define cpu_is_at91sam9xe()     (0)
  86 #define cpu_is_at91sam9260()    (0)
  87 #endif
  88
  89 #ifdef CONFIG_ARCH_AT91SAM9G20
  90 #define cpu_is_at91sam9g20()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
  91 #else
  92 #define cpu_is_at91sam9g20()    (0)
  93 #endif
  94
  95 #ifdef CONFIG_ARCH_AT91SAM9261
  96 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
  97 #else
  98 #define cpu_is_at91sam9261()    (0)
  99 #endif
 100
 101 #ifdef CONFIG_ARCH_AT91SAM9G10
 102 #define cpu_is_at91sam9g10()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G10)
 103 #else
 104 #define cpu_is_at91sam9g10()    (0)
 105 #endif
 106
 107 #ifdef CONFIG_ARCH_AT91SAM9263
 108 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
 109 #else
 110 #define cpu_is_at91sam9263()    (0)
 111 #endif
 112
 113 #ifdef CONFIG_ARCH_AT91SAM9RL
 114 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
 115 #else
 116 #define cpu_is_at91sam9rl()     (0)
 117 #endif
 118
 119 #ifdef CONFIG_ARCH_AT91SAM9G45
 120 #define cpu_is_at91sam9g45()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G45)
 121 #else
 122 #define cpu_is_at91sam9g45()    (0)
 123 #endif
 124
 125 #ifdef CONFIG_ARCH_AT91CAP9
 126 #define cpu_is_at91cap9()       (at91_cpu_identify() == ARCH_ID_AT91CAP9)
 127 #define cpu_is_at91cap9_revB()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_B)
 128 #define cpu_is_at91cap9_revC()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_C)
 129 #else
 130 #define cpu_is_at91cap9()       (0)
 131 #define cpu_is_at91cap9_revB()  (0)
 132 #define cpu_is_at91cap9_revC()  (0)
 133 #endif
 134
 135 /*
 136  * Since this is ARM, we will never run on any AVR32 CPU. But these
 137  * definitions may reduce clutter in common drivers.
 138  */
 139 #define cpu_is_at32ap7000()     (0)
 140
 141 #endif