include/asm-arm/arch-omap/cpu.h

   1 /*
   2  * linux/include/asm-arm/arch-omap/cpu.h
   3  *
   4  * OMAP cpu type detection
   5  *
   6  * Copyright (C) 2004 Nokia Corporation
   7  *
   8  * Written by Tony Lindgren <tony.lindgren@nokia.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23  *
  24  */
  25
  26 #ifndef __ASM_ARCH_OMAP_CPU_H
  27 #define __ASM_ARCH_OMAP_CPU_H
  28
  29 extern unsigned int system_rev;
  30
  31 #define OMAP_DIE_ID_0           0xfffe1800
  32 #define OMAP_DIE_ID_1           0xfffe1804
  33 #define OMAP_PRODUCTION_ID_0    0xfffe2000
  34 #define OMAP_PRODUCTION_ID_1    0xfffe2004
  35 #define OMAP32_ID_0             0xfffed400
  36 #define OMAP32_ID_1             0xfffed404
  37
  38 /*
  39  * Test if multicore OMAP support is needed
  40  */
  41 #undef MULTI_OMAP1
  42 #undef MULTI_OMAP2
  43 #undef OMAP_NAME
  44
  45 #ifdef CONFIG_ARCH_OMAP730
  46 # ifdef OMAP_NAME
  47 #  undef  MULTI_OMAP1
  48 #  define MULTI_OMAP1
  49 # else
  50 #  define OMAP_NAME omap730
  51 # endif
  52 #endif
  53 #ifdef CONFIG_ARCH_OMAP1510
  54 # ifdef OMAP_NAME
  55 #  undef  MULTI_OMAP1
  56 #  define MULTI_OMAP1
  57 # else
  58 #  define OMAP_NAME omap1510
  59 # endif
  60 #endif
  61 #ifdef CONFIG_ARCH_OMAP16XX
  62 # ifdef OMAP_NAME
  63 #  undef  MULTI_OMAP1
  64 #  define MULTI_OMAP1
  65 # else
  66 #  define OMAP_NAME omap16xx
  67 # endif
  68 #endif
  69 #ifdef CONFIG_ARCH_OMAP24XX
  70 # if (defined(OMAP_NAME) || defined(MULTI_OMAP1))
  71 #  error "OMAP1 and OMAP2 can't be selected at the same time"
  72 # else
  73 #  undef  MULTI_OMAP2
  74 #  define OMAP_NAME omap24xx
  75 # endif
  76 #endif
  77
  78 /*
  79  * Macros to group OMAP into cpu classes.
  80  * These can be used in most places.
  81  * cpu_is_omap7xx():    True for OMAP730
  82  * cpu_is_omap15xx():   True for OMAP1510 and OMAP5910
  83  * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
  84  * cpu_is_omap24xx():   True for OMAP2420
  85  */
  86 #define GET_OMAP_CLASS  (system_rev & 0xff)
  87
  88 #define IS_OMAP_CLASS(class, id)                        \
  89 static inline int is_omap ##class (void)                \
  90 {                                                       \
  91         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
  92 }
  93
  94 IS_OMAP_CLASS(7xx, 0x07)
  95 IS_OMAP_CLASS(15xx, 0x15)
  96 IS_OMAP_CLASS(16xx, 0x16)
  97 IS_OMAP_CLASS(24xx, 0x24)
  98
  99 #define cpu_is_omap7xx()                0
 100 #define cpu_is_omap15xx()               0
 101 #define cpu_is_omap16xx()               0
 102 #define cpu_is_omap24xx()               0
 103
 104 #if defined(MULTI_OMAP1)
 105 # if defined(CONFIG_ARCH_OMAP730)
 106 #  undef  cpu_is_omap7xx
 107 #  define cpu_is_omap7xx()              is_omap7xx()
 108 # endif
 109 # if defined(CONFIG_ARCH_OMAP1510)
 110 #  undef  cpu_is_omap15xx
 111 #  define cpu_is_omap15xx()             is_omap15xx()
 112 # endif
 113 # if defined(CONFIG_ARCH_OMAP16XX)
 114 #  undef  cpu_is_omap16xx
 115 #  define cpu_is_omap16xx()             is_omap16xx()
 116 # endif
 117 #else
 118 # if defined(CONFIG_ARCH_OMAP730)
 119 #  undef  cpu_is_omap7xx
 120 #  define cpu_is_omap7xx()              1
 121 # endif
 122 # if defined(CONFIG_ARCH_OMAP1510)
 123 #  undef  cpu_is_omap15xx
 124 #  define cpu_is_omap15xx()             1
 125 # endif
 126 # if defined(CONFIG_ARCH_OMAP16XX)
 127 #  undef  cpu_is_omap16xx
 128 #  define cpu_is_omap16xx()             1
 129 # endif
 130 # if defined(CONFIG_ARCH_OMAP24XX)
 131 #  undef  cpu_is_omap24xx
 132 #  define cpu_is_omap24xx()             1
 133 # endif
 134 #endif
 135
 136 /*
 137  * Macros to detect individual cpu types.
 138  * These are only rarely needed.
 139  * cpu_is_omap730():    True for OMAP730
 140  * cpu_is_omap1510():   True for OMAP1510
 141  * cpu_is_omap1610():   True for OMAP1610
 142  * cpu_is_omap1611():   True for OMAP1611
 143  * cpu_is_omap5912():   True for OMAP5912
 144  * cpu_is_omap1621():   True for OMAP1621
 145  * cpu_is_omap1710():   True for OMAP1710
 146  * cpu_is_omap2420():   True for OMAP2420
 147  */
 148 #define GET_OMAP_TYPE   ((system_rev >> 16) & 0xffff)
 149
 150 #define IS_OMAP_TYPE(type, id)                          \
 151 static inline int is_omap ##type (void)                 \
 152 {                                                       \
 153         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 154 }
 155
 156 IS_OMAP_TYPE(730, 0x0730)
 157 IS_OMAP_TYPE(1510, 0x1510)
 158 IS_OMAP_TYPE(1610, 0x1610)
 159 IS_OMAP_TYPE(1611, 0x1611)
 160 IS_OMAP_TYPE(5912, 0x1611)
 161 IS_OMAP_TYPE(1621, 0x1621)
 162 IS_OMAP_TYPE(1710, 0x1710)
 163 IS_OMAP_TYPE(2420, 0x2420)
 164
 165 #define cpu_is_omap730()                0
 166 #define cpu_is_omap1510()               0
 167 #define cpu_is_omap1610()               0
 168 #define cpu_is_omap5912()               0
 169 #define cpu_is_omap1611()               0
 170 #define cpu_is_omap1621()               0
 171 #define cpu_is_omap1710()               0
 172 #define cpu_is_omap2420()               0
 173
 174 #if defined(MULTI_OMAP1)
 175 # if defined(CONFIG_ARCH_OMAP730)
 176 #  undef  cpu_is_omap730
 177 #  define cpu_is_omap730()              is_omap730()
 178 # endif
 179 # if defined(CONFIG_ARCH_OMAP1510)
 180 #  undef  cpu_is_omap1510
 181 #  define cpu_is_omap1510()             is_omap1510()
 182 # endif
 183 #else
 184 # if defined(CONFIG_ARCH_OMAP730)
 185 #  undef  cpu_is_omap730
 186 #  define cpu_is_omap730()              1
 187 # endif
 188 # if defined(CONFIG_ARCH_OMAP1510)
 189 #  undef  cpu_is_omap1510
 190 #  define cpu_is_omap1510()             1
 191 # endif
 192 #endif
 193
 194 /*
 195  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 196  * between 1611B/5912 and 1710.
 197  */
 198 #if defined(CONFIG_ARCH_OMAP16XX)
 199 # undef  cpu_is_omap1610
 200 # undef  cpu_is_omap1611
 201 # undef  cpu_is_omap5912
 202 # undef  cpu_is_omap1621
 203 # undef  cpu_is_omap1710
 204 # define cpu_is_omap1610()              is_omap1610()
 205 # define cpu_is_omap1611()              is_omap1611()
 206 # define cpu_is_omap5912()              is_omap5912()
 207 # define cpu_is_omap1621()              is_omap1621()
 208 # define cpu_is_omap1710()              is_omap1710()
 209 #endif
 210
 211 #if defined(CONFIG_ARCH_OMAP2420)
 212 #  undef  cpu_is_omap2420
 213 #  define cpu_is_omap2420()             1
 214 #endif
 215
 216 #endif