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_OMAP
  42 #undef OMAP_NAME
  43
  44 #ifdef CONFIG_ARCH_OMAP730
  45 # ifdef OMAP_NAME
  46 #  undef  MULTI_OMAP
  47 #  define MULTI_OMAP
  48 # else
  49 #  define OMAP_NAME omap730
  50 # endif
  51 #endif
  52 #ifdef CONFIG_ARCH_OMAP1510
  53 # ifdef OMAP_NAME
  54 #  undef  MULTI_OMAP
  55 #  define MULTI_OMAP
  56 # else
  57 #  define OMAP_NAME omap1510
  58 # endif
  59 #endif
  60 #ifdef CONFIG_ARCH_OMAP16XX
  61 # ifdef OMAP_NAME
  62 #  undef  MULTI_OMAP
  63 #  define MULTI_OMAP
  64 # else
  65 #  define OMAP_NAME omap1610
  66 # endif
  67 #endif
  68 #ifdef CONFIG_ARCH_OMAP16XX
  69 # ifdef OMAP_NAME
  70 #  undef  MULTI_OMAP
  71 #  define MULTI_OMAP
  72 # else
  73 #  define OMAP_NAME omap1710
  74 # endif
  75 #endif
  76
  77 /*
  78  * Generate various OMAP cpu specific macros, and cpu class
  79  * specific macros
  80  */
  81 #define GET_OMAP_TYPE   ((system_rev >> 24) & 0xff)
  82 #define GET_OMAP_CLASS  (system_rev & 0xff)
  83
  84 #define IS_OMAP_TYPE(type, id)                          \
  85 static inline int is_omap ##type (void)                 \
  86 {                                                       \
  87         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
  88 }
  89
  90 #define IS_OMAP_CLASS(class, id)                        \
  91 static inline int is_omap ##class (void)                \
  92 {                                                       \
  93         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
  94 }
  95
  96 IS_OMAP_TYPE(730, 0x07)
  97 IS_OMAP_TYPE(1510, 0x15)
  98 IS_OMAP_TYPE(1610, 0x16)
  99 IS_OMAP_TYPE(5912, 0x16)
 100 IS_OMAP_TYPE(1710, 0x17)
 101 IS_OMAP_TYPE(2420, 0x24)
 102
 103 IS_OMAP_CLASS(7xx, 0x07)
 104 IS_OMAP_CLASS(15xx, 0x15)
 105 IS_OMAP_CLASS(16xx, 0x16)
 106 IS_OMAP_CLASS(24xx, 0x24)
 107
 108 /*
 109  * Macros to group OMAP types into cpu classes.
 110  * These can be used in most places.
 111  * cpu_is_omap15xx():   True for 1510 and 5910
 112  * cpu_is_omap16xx():   True for 1610, 5912 and 1710
 113  */
 114 #if defined(MULTI_OMAP)
 115 # define cpu_is_omap7xx()               is_omap7xx()
 116 # define cpu_is_omap15xx()              is_omap15xx()
 117 # if !(defined(CONFIG_ARCH_OMAP1510) || defined(CONFIG_ARCH_OMAP730))
 118 #  define cpu_is_omap16xx()             1
 119 # else
 120 #  define cpu_is_omap16xx()             is_omap16xx()
 121 # endif
 122 #else
 123 # if defined(CONFIG_ARCH_OMAP730)
 124 #  define cpu_is_omap7xx()              1
 125 # else
 126 #  define cpu_is_omap7xx()              0
 127 # endif
 128 # if defined(CONFIG_ARCH_OMAP1510)
 129 #  define cpu_is_omap15xx()             1
 130 # else
 131 #  define cpu_is_omap15xx()             0
 132 # endif
 133 # if defined(CONFIG_ARCH_OMAP16XX)
 134 #  define cpu_is_omap16xx()             1
 135 # else
 136 #  define cpu_is_omap16xx()             0
 137 # endif
 138 #endif
 139
 140 #if defined(MULTI_OMAP)
 141 # define cpu_is_omap730()               is_omap730()
 142 # define cpu_is_omap1510()              is_omap1510()
 143 # define cpu_is_omap1610()              is_omap1610()
 144 # define cpu_is_omap5912()              is_omap5912()
 145 # define cpu_is_omap1710()              is_omap1710()
 146 #else
 147 # if defined(CONFIG_ARCH_OMAP730)
 148 #  define cpu_is_omap730()              1
 149 # else
 150 #  define cpu_is_omap730()              0
 151 # endif
 152 # if defined(CONFIG_ARCH_OMAP1510)
 153 #  define cpu_is_omap1510()             1
 154 # else
 155 #  define cpu_is_omap1510()             0
 156 # endif
 157 # if defined(CONFIG_ARCH_OMAP16XX)
 158 #  define cpu_is_omap1610()             1
 159 # else
 160 #  define cpu_is_omap1610()             0
 161 # endif
 162 # if defined(CONFIG_ARCH_OMAP16XX)
 163 #  define cpu_is_omap5912()             1
 164 # else
 165 #  define cpu_is_omap5912()             0
 166 # endif
 167 # if defined(CONFIG_ARCH_OMAP16XX)
 168 # define cpu_is_omap1610()              is_omap1610()
 169 # define cpu_is_omap5912()              is_omap5912()
 170 # define cpu_is_omap1710()              is_omap1710()
 171 # else
 172 # define cpu_is_omap1610()              0
 173 # define cpu_is_omap5912()              0
 174 # define cpu_is_omap1710()              0
 175 # endif
 176 # if defined(CONFIG_ARCH_OMAP2420)
 177 #  define cpu_is_omap2420()             1
 178 # else
 179 #  define cpu_is_omap2420()             0
 180 # endif
 181 #endif
 182
 183 #endif