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     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
  41static inline unsigned long at91_cpu_identify(void)
  42{
  43        return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  44}
  45
  46static 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
  55static 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
  65static 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
  76static 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
 151