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 omap2_cpu_rev()         ((system_rev >> 12) & 0x0f)
  32
  33 /*
  34  * Test if multicore OMAP support is needed
  35  */
  36 #undef MULTI_OMAP1
  37 #undef MULTI_OMAP2
  38 #undef OMAP_NAME
  39
  40 #ifdef CONFIG_ARCH_OMAP730
  41 # ifdef OMAP_NAME
  42 #  undef  MULTI_OMAP1
  43 #  define MULTI_OMAP1
  44 # else
  45 #  define OMAP_NAME omap730
  46 # endif
  47 #endif
  48 #ifdef CONFIG_ARCH_OMAP15XX
  49 # ifdef OMAP_NAME
  50 #  undef  MULTI_OMAP1
  51 #  define MULTI_OMAP1
  52 # else
  53 #  define OMAP_NAME omap1510
  54 # endif
  55 #endif
  56 #ifdef CONFIG_ARCH_OMAP16XX
  57 # ifdef OMAP_NAME
  58 #  undef  MULTI_OMAP1
  59 #  define MULTI_OMAP1
  60 # else
  61 #  define OMAP_NAME omap16xx
  62 # endif
  63 #endif
  64 #if (defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX))
  65 # if (defined(OMAP_NAME) || defined(MULTI_OMAP1))
  66 #  error "OMAP1 and OMAP2 can't be selected at the same time"
  67 # endif
  68 #endif
  69 #ifdef CONFIG_ARCH_OMAP2420
  70 # ifdef OMAP_NAME
  71 #  undef  MULTI_OMAP2
  72 #  define MULTI_OMAP2
  73 # else
  74 #  define OMAP_NAME omap2420
  75 # endif
  76 #endif
  77 #ifdef CONFIG_ARCH_OMAP2430
  78 # ifdef OMAP_NAME
  79 #  undef  MULTI_OMAP2
  80 #  define MULTI_OMAP2
  81 # else
  82 #  define OMAP_NAME omap2430
  83 # endif
  84 #endif
  85 #ifdef CONFIG_ARCH_OMAP3430
  86 # ifdef OMAP_NAME
  87 #  undef  MULTI_OMAP2
  88 #  define MULTI_OMAP2
  89 # else
  90 #  define OMAP_NAME omap3430
  91 # endif
  92 #endif
  93
  94 /*
  95  * Macros to group OMAP into cpu classes.
  96  * These can be used in most places.
  97  * cpu_is_omap7xx():    True for OMAP730
  98  * cpu_is_omap15xx():   True for OMAP1510, OMAP5910 and OMAP310
  99  * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
 100  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
 101  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
 102  * cpu_is_omap243x():   True for OMAP2430
 103  * cpu_is_omap343x():   True for OMAP3430
 104  */
 105 #define GET_OMAP_CLASS  ((system_rev >> 24) & 0xff)
 106
 107 #define IS_OMAP_CLASS(class, id)                        \
 108 static inline int is_omap ##class (void)                \
 109 {                                                       \
 110         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 111 }
 112
 113 #define GET_OMAP_SUBCLASS       ((system_rev >> 20) & 0x0fff)
 114
 115 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 116 static inline int is_omap ##subclass (void)             \
 117 {                                                       \
 118         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 119 }
 120
 121 IS_OMAP_CLASS(7xx, 0x07)
 122 IS_OMAP_CLASS(15xx, 0x15)
 123 IS_OMAP_CLASS(16xx, 0x16)
 124 IS_OMAP_CLASS(24xx, 0x24)
 125 IS_OMAP_CLASS(34xx, 0x34)
 126
 127 IS_OMAP_SUBCLASS(242x, 0x242)
 128 IS_OMAP_SUBCLASS(243x, 0x243)
 129 IS_OMAP_SUBCLASS(343x, 0x343)
 130
 131 #define cpu_is_omap7xx()                0
 132 #define cpu_is_omap15xx()               0
 133 #define cpu_is_omap16xx()               0
 134 #define cpu_is_omap24xx()               0
 135 #define cpu_is_omap242x()               0
 136 #define cpu_is_omap243x()               0
 137 #define cpu_is_omap34xx()               0
 138 #define cpu_is_omap343x()               0
 139
 140 #if defined(MULTI_OMAP1)
 141 # if defined(CONFIG_ARCH_OMAP730)
 142 #  undef  cpu_is_omap7xx
 143 #  define cpu_is_omap7xx()              is_omap7xx()
 144 # endif
 145 # if defined(CONFIG_ARCH_OMAP15XX)
 146 #  undef  cpu_is_omap15xx
 147 #  define cpu_is_omap15xx()             is_omap15xx()
 148 # endif
 149 # if defined(CONFIG_ARCH_OMAP16XX)
 150 #  undef  cpu_is_omap16xx
 151 #  define cpu_is_omap16xx()             is_omap16xx()
 152 # endif
 153 #else
 154 # if defined(CONFIG_ARCH_OMAP730)
 155 #  undef  cpu_is_omap7xx
 156 #  define cpu_is_omap7xx()              1
 157 # endif
 158 # if defined(CONFIG_ARCH_OMAP15XX)
 159 #  undef  cpu_is_omap15xx
 160 #  define cpu_is_omap15xx()             1
 161 # endif
 162 # if defined(CONFIG_ARCH_OMAP16XX)
 163 #  undef  cpu_is_omap16xx
 164 #  define cpu_is_omap16xx()             1
 165 # endif
 166 #endif
 167
 168 #if defined(MULTI_OMAP2)
 169 # if defined(CONFIG_ARCH_OMAP24XX)
 170 #  undef  cpu_is_omap24xx
 171 #  undef  cpu_is_omap242x
 172 #  undef  cpu_is_omap243x
 173 #  define cpu_is_omap24xx()             is_omap24xx()
 174 #  define cpu_is_omap242x()             is_omap242x()
 175 #  define cpu_is_omap243x()             is_omap243x()
 176 # endif
 177 # if defined(CONFIG_ARCH_OMAP34XX)
 178 #  undef  cpu_is_omap34xx
 179 #  undef  cpu_is_omap343x
 180 #  define cpu_is_omap34xx()             is_omap34xx()
 181 #  define cpu_is_omap343x()             is_omap343x()
 182 # endif
 183 #else
 184 # if defined(CONFIG_ARCH_OMAP24XX)
 185 #  undef  cpu_is_omap24xx
 186 #  define cpu_is_omap24xx()             1
 187 # endif
 188 # if defined(CONFIG_ARCH_OMAP2420)
 189 #  undef  cpu_is_omap242x
 190 #  define cpu_is_omap242x()             1
 191 # endif
 192 # if defined(CONFIG_ARCH_OMAP2430)
 193 #  undef  cpu_is_omap243x
 194 #  define cpu_is_omap243x()             1
 195 # endif
 196 # if defined(CONFIG_ARCH_OMAP34XX)
 197 #  undef  cpu_is_omap34xx
 198 #  define cpu_is_omap34xx()             1
 199 # endif
 200 # if defined(CONFIG_ARCH_OMAP3430)
 201 #  undef  cpu_is_omap343x
 202 #  define cpu_is_omap343x()             1
 203 # endif
 204 #endif
 205
 206 /*
 207  * Macros to detect individual cpu types.
 208  * These are only rarely needed.
 209  * cpu_is_omap330():    True for OMAP330
 210  * cpu_is_omap730():    True for OMAP730
 211  * cpu_is_omap1510():   True for OMAP1510
 212  * cpu_is_omap1610():   True for OMAP1610
 213  * cpu_is_omap1611():   True for OMAP1611
 214  * cpu_is_omap5912():   True for OMAP5912
 215  * cpu_is_omap1621():   True for OMAP1621
 216  * cpu_is_omap1710():   True for OMAP1710
 217  * cpu_is_omap2420():   True for OMAP2420
 218  * cpu_is_omap2422():   True for OMAP2422
 219  * cpu_is_omap2423():   True for OMAP2423
 220  * cpu_is_omap2430():   True for OMAP2430
 221  * cpu_is_omap3430():   True for OMAP3430
 222  */
 223 #define GET_OMAP_TYPE   ((system_rev >> 16) & 0xffff)
 224
 225 #define IS_OMAP_TYPE(type, id)                          \
 226 static inline int is_omap ##type (void)                 \
 227 {                                                       \
 228         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 229 }
 230
 231 IS_OMAP_TYPE(310, 0x0310)
 232 IS_OMAP_TYPE(730, 0x0730)
 233 IS_OMAP_TYPE(1510, 0x1510)
 234 IS_OMAP_TYPE(1610, 0x1610)
 235 IS_OMAP_TYPE(1611, 0x1611)
 236 IS_OMAP_TYPE(5912, 0x1611)
 237 IS_OMAP_TYPE(1621, 0x1621)
 238 IS_OMAP_TYPE(1710, 0x1710)
 239 IS_OMAP_TYPE(2420, 0x2420)
 240 IS_OMAP_TYPE(2422, 0x2422)
 241 IS_OMAP_TYPE(2423, 0x2423)
 242 IS_OMAP_TYPE(2430, 0x2430)
 243 IS_OMAP_TYPE(3430, 0x3430)
 244
 245 #define cpu_is_omap310()                0
 246 #define cpu_is_omap730()                0
 247 #define cpu_is_omap1510()               0
 248 #define cpu_is_omap1610()               0
 249 #define cpu_is_omap5912()               0
 250 #define cpu_is_omap1611()               0
 251 #define cpu_is_omap1621()               0
 252 #define cpu_is_omap1710()               0
 253 #define cpu_is_omap2420()               0
 254 #define cpu_is_omap2422()               0
 255 #define cpu_is_omap2423()               0
 256 #define cpu_is_omap2430()               0
 257 #define cpu_is_omap3430()               0
 258
 259 #if defined(MULTI_OMAP1)
 260 # if defined(CONFIG_ARCH_OMAP730)
 261 #  undef  cpu_is_omap730
 262 #  define cpu_is_omap730()              is_omap730()
 263 # endif
 264 #else
 265 # if defined(CONFIG_ARCH_OMAP730)
 266 #  undef  cpu_is_omap730
 267 #  define cpu_is_omap730()              1
 268 # endif
 269 #endif
 270
 271 /*
 272  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 273  * between 330 vs. 1510 and 1611B/5912 vs. 1710.
 274  */
 275 #if defined(CONFIG_ARCH_OMAP15XX)
 276 # undef  cpu_is_omap310
 277 # undef  cpu_is_omap1510
 278 # define cpu_is_omap310()               is_omap310()
 279 # define cpu_is_omap1510()              is_omap1510()
 280 #endif
 281
 282 #if defined(CONFIG_ARCH_OMAP16XX)
 283 # undef  cpu_is_omap1610
 284 # undef  cpu_is_omap1611
 285 # undef  cpu_is_omap5912
 286 # undef  cpu_is_omap1621
 287 # undef  cpu_is_omap1710
 288 # define cpu_is_omap1610()              is_omap1610()
 289 # define cpu_is_omap1611()              is_omap1611()
 290 # define cpu_is_omap5912()              is_omap5912()
 291 # define cpu_is_omap1621()              is_omap1621()
 292 # define cpu_is_omap1710()              is_omap1710()
 293 #endif
 294
 295 #if defined(CONFIG_ARCH_OMAP24XX)
 296 # undef  cpu_is_omap2420
 297 # undef  cpu_is_omap2422
 298 # undef  cpu_is_omap2423
 299 # undef  cpu_is_omap2430
 300 # define cpu_is_omap2420()              is_omap2420()
 301 # define cpu_is_omap2422()              is_omap2422()
 302 # define cpu_is_omap2423()              is_omap2423()
 303 # define cpu_is_omap2430()              is_omap2430()
 304 #endif
 305
 306 #if defined(CONFIG_ARCH_OMAP34XX)
 307 # undef cpu_is_omap3430
 308 # define cpu_is_omap3430()              is_omap3430()
 309 #endif
 310
 311 /* Macros to detect if we have OMAP1 or OMAP2 */
 312 #define cpu_class_is_omap1()    (cpu_is_omap730() || cpu_is_omap15xx() || \
 313                                 cpu_is_omap16xx())
 314 #define cpu_class_is_omap2()    (cpu_is_omap24xx() || cpu_is_omap34xx())
 315
 316 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
 317 /*
 318  * Macros to detect silicon revision of OMAP2/3 processors.
 319  * is_sil_rev_greater_than:     true if passed cpu type & its rev is greater.
 320  * is_sil_rev_lesser_than:      true if passed cpu type & its rev is lesser.
 321  * is_sil_rev_equal_to:         true if passed cpu type & its rev is equal.
 322  * get_sil_rev:                 return the silicon rev value.
 323  */
 324 #define get_sil_omap_type(rev)  ((rev & 0xffff0000) >> 16)
 325 #define get_sil_revision(rev)   ((rev & 0x0000f000) >> 12)
 326
 327 #define is_sil_rev_greater_than(rev) \
 328                 ((get_sil_omap_type(system_rev) == get_sil_omap_type(rev)) && \
 329                 (get_sil_revision(system_rev) > get_sil_revision(rev)))
 330
 331 #define is_sil_rev_less_than(rev) \
 332                 ((get_sil_omap_type(system_rev) == get_sil_omap_type(rev)) && \
 333                 (get_sil_revision(system_rev) < get_sil_revision(rev)))
 334
 335 #define is_sil_rev_equal_to(rev) \
 336                 ((get_sil_omap_type(system_rev) == get_sil_omap_type(rev)) && \
 337                 (get_sil_revision(system_rev) == get_sil_revision(rev)))
 338
 339 #define get_sil_rev() \
 340                 get_sil_revision(system_rev)
 341
 342 /* Various silicon macros defined here */
 343 #define OMAP2420_REV_ES1_0      0x24200000
 344 #define OMAP2420_REV_ES2_0      0x24201000
 345 #define OMAP2430_REV_ES1_0      0x24300000
 346 #define OMAP3430_REV_ES1_0      0x34300000
 347 #define OMAP3430_REV_ES2_0      0x34301000
 348
 349 /*
 350  * Macro to detect device type i.e. EMU/HS/TST/GP/BAD
 351  */
 352 #define DEVICE_TYPE_TEST        0
 353 #define DEVICE_TYPE_EMU         1
 354 #define DEVICE_TYPE_SEC         2
 355 #define DEVICE_TYPE_GP          3
 356 #define DEVICE_TYPE_BAD         4
 357
 358 #define get_device_type()       ((system_rev & 0x700) >> 8)
 359 #define is_device_type_test()   (get_device_type() == DEVICE_TYPE_TEST)
 360 #define is_device_type_emu()    (get_device_type() == DEVICE_TYPE_EMU)
 361 #define is_device_type_sec()    (get_device_type() == DEVICE_TYPE_SEC)
 362 #define is_device_type_gp()     (get_device_type() == DEVICE_TYPE_GP)
 363 #define is_device_type_bad()    (get_device_type() == DEVICE_TYPE_BAD)
 364
 365 #endif
 366
 367 #endif