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_AT91SAM9G20     0x019905a0
  25 #define ARCH_ID_AT91SAM9RL64    0x019b03a0
  26 #define ARCH_ID_AT91SAM9G45     0x819b05a0
  27 #define ARCH_ID_AT91CAP9        0x039A03A0
  28
  29 #define ARCH_ID_AT91SAM9XE128   0x329973a0
  30 #define ARCH_ID_AT91SAM9XE256   0x329a93a0
  31 #define ARCH_ID_AT91SAM9XE512   0x329aa3a0
  32
  33 #define ARCH_ID_AT91M40800      0x14080044
  34 #define ARCH_ID_AT91R40807      0x44080746
  35 #define ARCH_ID_AT91M40807      0x14080745
  36 #define ARCH_ID_AT91R40008      0x44000840
  37
  38 static inline unsigned long at91_cpu_identify(void)
  39 {
  40         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  41 }
  42
  43 #define ARCH_EXID_AT91SAM9M11   0x00000001
  44 #define ARCH_EXID_AT91SAM9M10   0x00000002
  45 #define ARCH_EXID_AT91SAM9G45   0x00000004
  46
  47 static inline unsigned long at91_exid_identify(void)
  48 {
  49         return at91_sys_read(AT91_DBGU_EXID);
  50 }
  51
  52
  53 #define ARCH_FAMILY_AT91X92     0x09200000
  54 #define ARCH_FAMILY_AT91SAM9    0x01900000
  55 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
  56
  57 static inline unsigned long at91_arch_identify(void)
  58 {
  59         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  60 }
  61
  62 #ifdef CONFIG_ARCH_AT91CAP9
  63 #include <mach/at91_pmc.h>
  64
  65 #define ARCH_REVISION_CAP9_B    0x399
  66 #define ARCH_REVISION_CAP9_C    0x601
  67
  68 static inline unsigned long at91cap9_rev_identify(void)
  69 {
  70         return (at91_sys_read(AT91_PMC_VER));
  71 }
  72 #endif
  73
  74 #ifdef CONFIG_ARCH_AT91RM9200
  75 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  76 #else
  77 #define cpu_is_at91rm9200()     (0)
  78 #endif
  79
  80 #ifdef CONFIG_ARCH_AT91SAM9260
  81 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  82 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  83 #else
  84 #define cpu_is_at91sam9xe()     (0)
  85 #define cpu_is_at91sam9260()    (0)
  86 #endif
  87
  88 #ifdef CONFIG_ARCH_AT91SAM9G20
  89 #define cpu_is_at91sam9g20()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
  90 #else
  91 #define cpu_is_at91sam9g20()    (0)
  92 #endif
  93
  94 #ifdef CONFIG_ARCH_AT91SAM9261
  95 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
  96 #else
  97 #define cpu_is_at91sam9261()    (0)
  98 #endif
  99
 100 #ifdef CONFIG_ARCH_AT91SAM9263
 101 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
 102 #else
 103 #define cpu_is_at91sam9263()    (0)
 104 #endif
 105
 106 #ifdef CONFIG_ARCH_AT91SAM9RL
 107 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
 108 #else
 109 #define cpu_is_at91sam9rl()     (0)
 110 #endif
 111
 112 #ifdef CONFIG_ARCH_AT91SAM9G45
 113 #define cpu_is_at91sam9g45()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G45)
 114 #else
 115 #define cpu_is_at91sam9g45()    (0)
 116 #endif
 117
 118 #ifdef CONFIG_ARCH_AT91CAP9
 119 #define cpu_is_at91cap9()       (at91_cpu_identify() == ARCH_ID_AT91CAP9)
 120 #define cpu_is_at91cap9_revB()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_B)
 121 #define cpu_is_at91cap9_revC()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_C)
 122 #else
 123 #define cpu_is_at91cap9()       (0)
 124 #define cpu_is_at91cap9_revB()  (0)
 125 #define cpu_is_at91cap9_revC()  (0)
 126 #endif
 127
 128 /*
 129  * Since this is ARM, we will never run on any AVR32 CPU. But these
 130  * definitions may reduce clutter in common drivers.
 131  */
 132 #define cpu_is_at32ap7000()     (0)
 133
 134 #endif