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_AT91SAM9G45MRL  0x819b05a2      /* aka 9G45-ES2 & non ES lots */
  29 #define ARCH_ID_AT91SAM9G45ES   0x819b05a1      /* 9G45-ES (Engineering Sample) */
  30 #define ARCH_ID_AT91CAP9        0x039A03A0
  31
  32 #define ARCH_ID_AT91SAM9XE128   0x329973a0
  33 #define ARCH_ID_AT91SAM9XE256   0x329a93a0
  34 #define ARCH_ID_AT91SAM9XE512   0x329aa3a0
  35
  36 #define ARCH_ID_AT91M40800      0x14080044
  37 #define ARCH_ID_AT91R40807      0x44080746
  38 #define ARCH_ID_AT91M40807      0x14080745
  39 #define ARCH_ID_AT91R40008      0x44000840
  40
  41 static inline unsigned long at91_cpu_identify(void)
  42 {
  43         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  44 }
  45
  46 static inline unsigned long at91_cpu_fully_identify(void)
  47 {
  48         return at91_sys_read(AT91_DBGU_CIDR);
  49 }
  50
  51 #define ARCH_EXID_AT91SAM9M11   0x00000001
  52 #define ARCH_EXID_AT91SAM9M10   0x00000002
  53 #define ARCH_EXID_AT91SAM9G45   0x00000004
  54
  55 static inline unsigned long at91_exid_identify(void)
  56 {
  57         return at91_sys_read(AT91_DBGU_EXID);
  58 }
  59
  60
  61 #define ARCH_FAMILY_AT91X92     0x09200000
  62 #define ARCH_FAMILY_AT91SAM9    0x01900000
  63 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
  64
  65 static inline unsigned long at91_arch_identify(void)
  66 {
  67         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  68 }
  69
  70 #ifdef CONFIG_ARCH_AT91CAP9
  71 #include <mach/at91_pmc.h>
  72
  73 #define ARCH_REVISION_CAP9_B    0x399
  74 #define ARCH_REVISION_CAP9_C    0x601
  75
  76 static inline unsigned long at91cap9_rev_identify(void)
  77 {
  78         return (at91_sys_read(AT91_PMC_VER));
  79 }
  80 #endif
  81
  82 #ifdef CONFIG_ARCH_AT91RM9200
  83 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  84 #else
  85 #define cpu_is_at91rm9200()     (0)
  86 #endif
  87
  88 #ifdef CONFIG_ARCH_AT91SAM9260
  89 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  90 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  91 #else
  92 #define cpu_is_at91sam9xe()     (0)
  93 #define cpu_is_at91sam9260()    (0)
  94 #endif
  95
  96 #ifdef CONFIG_ARCH_AT91SAM9G20
  97 #define cpu_is_at91sam9g20()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
  98 #else
  99 #define cpu_is_at91sam9g20()    (0)
 100 #endif
 101
 102 #ifdef CONFIG_ARCH_AT91SAM9261
 103 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
 104 #else
 105 #define cpu_is_at91sam9261()    (0)
 106 #endif
 107
 108 #ifdef CONFIG_ARCH_AT91SAM9G10
 109 #define cpu_is_at91sam9g10()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G10)
 110 #else
 111 #define cpu_is_at91sam9g10()    (0)
 112 #endif
 113
 114 #ifdef CONFIG_ARCH_AT91SAM9263
 115 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
 116 #else
 117 #define cpu_is_at91sam9263()    (0)
 118 #endif
 119
 120 #ifdef CONFIG_ARCH_AT91SAM9RL
 121 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
 122 #else
 123 #define cpu_is_at91sam9rl()     (0)
 124 #endif
 125
 126 #ifdef CONFIG_ARCH_AT91SAM9G45
 127 #define cpu_is_at91sam9g45()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G45)
 128 #define cpu_is_at91sam9g45es()  (at91_cpu_fully_identify() == ARCH_ID_AT91SAM9G45ES)
 129 #else
 130 #define cpu_is_at91sam9g45()    (0)
 131 #define cpu_is_at91sam9g45es()  (0)
 132 #endif
 133
 134 #ifdef CONFIG_ARCH_AT91CAP9
 135 #define cpu_is_at91cap9()       (at91_cpu_identify() == ARCH_ID_AT91CAP9)
 136 #define cpu_is_at91cap9_revB()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_B)
 137 #define cpu_is_at91cap9_revC()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_C)
 138 #else
 139 #define cpu_is_at91cap9()       (0)
 140 #define cpu_is_at91cap9_revB()  (0)
 141 #define cpu_is_at91cap9_revC()  (0)
 142 #endif
 143
 144 /*
 145  * Since this is ARM, we will never run on any AVR32 CPU. But these
 146  * definitions may reduce clutter in common drivers.
 147  */
 148 #define cpu_is_at32ap7000()     (0)
 149
 150 #endif