LXR linux/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     0x019903a0
  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_AT572D940HF     0x0e0303e0
  37
  38#define ARCH_ID_AT91M40800      0x14080044
  39#define ARCH_ID_AT91R40807      0x44080746
  40#define ARCH_ID_AT91M40807      0x14080745
  41#define ARCH_ID_AT91R40008      0x44000840
  42
  43static inline unsigned long at91_cpu_identify(void)
  44{
  45        return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  46}
  47
  48static inline unsigned long at91_cpu_fully_identify(void)
  49{
  50        return at91_sys_read(AT91_DBGU_CIDR);
  51}
  52
  53#define ARCH_EXID_AT91SAM9M11   0x00000001
  54#define ARCH_EXID_AT91SAM9M10   0x00000002
  55#define ARCH_EXID_AT91SAM9G46   0x00000003
  56#define ARCH_EXID_AT91SAM9G45   0x00000004
  57
  58static inline unsigned long at91_exid_identify(void)
  59{
  60        return at91_sys_read(AT91_DBGU_EXID);
  61}
  62
  63
  64#define ARCH_FAMILY_AT91X92     0x09200000
  65#define ARCH_FAMILY_AT91SAM9    0x01900000
  66#define ARCH_FAMILY_AT91SAM9XE  0x02900000
  67
  68static inline unsigned long at91_arch_identify(void)
  69{
  70        return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  71}
  72
  73#ifdef CONFIG_ARCH_AT91CAP9
  74#include <mach/at91_pmc.h>
  75
  76#define ARCH_REVISION_CAP9_B    0x399
  77#define ARCH_REVISION_CAP9_C    0x601
  78
  79static inline unsigned long at91cap9_rev_identify(void)
  80{
  81        return (at91_sys_read(AT91_PMC_VER));
  82}
  83#endif
  84
  85#ifdef CONFIG_ARCH_AT91RM9200
  86#define cpu_is_at91rm9200()     (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  87#else
  88#define cpu_is_at91rm9200()     (0)
  89#endif
  90
  91#ifdef CONFIG_ARCH_AT91SAM9260
  92#define cpu_is_at91sam9xe()     (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  93#define cpu_is_at91sam9260()    ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  94#else
  95#define cpu_is_at91sam9xe()     (0)
  96#define cpu_is_at91sam9260()    (0)
  97#endif
  98
  99#ifdef CONFIG_ARCH_AT91SAM9G20
 100#define cpu_is_at91sam9g20()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
 101#else
 102#define cpu_is_at91sam9g20()    (0)
 103#endif
 104
 105#ifdef CONFIG_ARCH_AT91SAM9261
 106#define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
 107#else
 108#define cpu_is_at91sam9261()    (0)
 109#endif
 110
 111#ifdef CONFIG_ARCH_AT91SAM9G10
 112#define cpu_is_at91sam9g10()    ((at91_cpu_identify() & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10)
 113#else
 114#define cpu_is_at91sam9g10()    (0)
 115#endif
 116
 117#ifdef CONFIG_ARCH_AT91SAM9263
 118#define cpu_is_at91sam9263()    (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
 119#else
 120#define cpu_is_at91sam9263()    (0)
 121#endif
 122
 123#ifdef CONFIG_ARCH_AT91SAM9RL
 124#define cpu_is_at91sam9rl()     (at91_cpu_identify() == ARCH_ID_AT91SAM9RL64)
 125#else
 126#define cpu_is_at91sam9rl()     (0)
 127#endif
 128
 129#ifdef CONFIG_ARCH_AT91SAM9G45
 130#define cpu_is_at91sam9g45()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G45)
 131#define cpu_is_at91sam9g45es()  (at91_cpu_fully_identify() == ARCH_ID_AT91SAM9G45ES)
 132#define cpu_is_at91sam9m10()    (cpu_is_at91sam9g45() && \
 133                                (at91_exid_identify() == ARCH_EXID_AT91SAM9M10))
 134#define cpu_is_at91sam9m46()    (cpu_is_at91sam9g45() && \
 135                                (at91_exid_identify() == ARCH_EXID_AT91SAM9G46))
 136#define cpu_is_at91sam9m11()    (cpu_is_at91sam9g45() && \
 137                                (at91_exid_identify() == ARCH_EXID_AT91SAM9M11))
 138#else
 139#define cpu_is_at91sam9g45()    (0)
 140#define cpu_is_at91sam9g45es()  (0)
 141#define cpu_is_at91sam9m10()    (0)
 142#define cpu_is_at91sam9g46()    (0)
 143#define cpu_is_at91sam9m11()    (0)
 144#endif
 145
 146#ifdef CONFIG_ARCH_AT91CAP9
 147#define cpu_is_at91cap9()       (at91_cpu_identify() == ARCH_ID_AT91CAP9)
 148#define cpu_is_at91cap9_revB()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_B)
 149#define cpu_is_at91cap9_revC()  (at91cap9_rev_identify() == ARCH_REVISION_CAP9_C)
 150#else
 151#define cpu_is_at91cap9()       (0)
 152#define cpu_is_at91cap9_revB()  (0)
 153#define cpu_is_at91cap9_revC()  (0)
 154#endif
 155
 156#ifdef CONFIG_ARCH_AT572D940HF
 157#define cpu_is_at572d940hf() (at91_cpu_identify() == ARCH_ID_AT572D940HF)
 158#else
 159#define cpu_is_at572d940hf() (0)
 160#endif
 161
 162/*
 163 * Since this is ARM, we will never run on any AVR32 CPU. But these
 164 * definitions may reduce clutter in common drivers.
 165 */
 166#define cpu_is_at32ap7000()     (0)
 167
 168#endif
 169