kernel/2.6.29.6-aldebaran-rt/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_AT91CAP9        0x039A03A0
  27
  28 #define ARCH_ID_AT91SAM9XE128   0x329973a0
  29 #define ARCH_ID_AT91SAM9XE256   0x329a93a0
  30 #define ARCH_ID_AT91SAM9XE512   0x329aa3a0
  31
  32 #define ARCH_ID_AT91M40800      0x14080044
  33 #define ARCH_ID_AT91R40807      0x44080746
  34 #define ARCH_ID_AT91M40807      0x14080745
  35 #define ARCH_ID_AT91R40008      0x44000840
  36
  37 static inline unsigned long at91_cpu_identify(void)
  38 {
  39         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  40 }
  41
  42
  43 #define ARCH_FAMILY_AT91X92     0x09200000
  44 #define ARCH_FAMILY_AT91SAM9    0x01900000
  45 #define ARCH_FAMILY_AT91SAM9XE  0x02900000
  46
  47 static inline unsigned long at91_arch_identify(void)
  48 {
  49         return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  50 }
  51
  52 #ifdef CONFIG_ARCH_AT91CAP9
  53 #include <mach/at91_pmc.h>
  54
  55 #define ARCH_REVISION_CAP9_B    0x399
  56 #define ARCH_REVISION_CAP9_C    0x601
  57
  58 static inline unsigned long at91cap9_rev_identify(void)
  59 {
  60         return (at91_sys_read(AT91_PMC_VER));
  61 }
  62 #endif
  63
  64 #ifdef CONFIG_ARCH_AT91RM9200
  65 #define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  66 #else
  67 #define cpu_is_at91rm9200()     (0)
  68 #endif
  69
  70 #ifdef CONFIG_ARCH_AT91SAM9260
  71 #define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  72 #define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  73 #else
  74 #define cpu_is_at91sam9xe()     (0)
  75 #define cpu_is_at91sam9260()    (0)
  76 #endif
  77
  78 #ifdef CONFIG_ARCH_AT91SAM9G20
  79 #define cpu_is_at91sam9g20()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
  80 #else
  81 #define cpu_is_at91sam9g20()    (0)
  82 #endif
  83
  84 #ifdef CONFIG_ARCH_AT91SAM9261
  85 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
  86 #else
  87 #define cpu_is_at91sam9261()    (0)
  88 #endif
  89
  90 #ifdef CONFIG_ARCH_AT91SAM9263
  91 #define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
  92 #else
  93 #define cpu_is_at91sam9263()    (0)
  94 #endif
  95
  96 #ifdef CONFIG_ARCH_AT91SAM9RL
  97 #define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
  98 #else
  99 #define cpu_is_at91sam9rl()     (0)
 100 #endif
 101
 102 #ifdef CONFIG_ARCH_AT91CAP9
 103 #define cpu_is_at91cap9()       (at91_cpu_identify() == ARCH_ID_AT91CAP9)
 104 #define cpu_is_at91cap9_revB()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_B)
 105 #define cpu_is_at91cap9_revC()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_C)
 106 #else
 107 #define cpu_is_at91cap9()       (0)
 108 #define cpu_is_at91cap9_revB()  (0)
 109 #define cpu_is_at91cap9_revC()  (0)
 110 #endif
 111
 112 /*
 113  * Since this is ARM, we will never run on any AVR32 CPU. But these
 114  * definitions may reduce clutter in common drivers.
 115  */
 116 #define cpu_is_at32ap7000()     (0)
 117
 118 #endif