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

   1 /*
   2  * arch/arm/plat-omap/include/mach/cpu.h
   3  *
   4  * OMAP cpu type detection
   5  *
   6  * Copyright (C) 2004, 2008 Nokia Corporation
   7  *
   8  * Copyright (C) 2009-11 Texas Instruments.
   9  *
  10  * Written by Tony Lindgren <tony.lindgren@nokia.com>
  11  *
  12  * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  27  *
  28  */
  29
  30 #ifndef __ASM_ARCH_OMAP_CPU_H
  31 #define __ASM_ARCH_OMAP_CPU_H
  32
  33 #ifndef __ASSEMBLY__
  34
  35 #include <linux/bitops.h>
  36
  37 /*
  38  * Test if multicore OMAP support is needed
  39  */
  40 #undef MULTI_OMAP1
  41 #undef MULTI_OMAP2
  42 #undef OMAP_NAME
  43
  44 #ifdef CONFIG_ARCH_OMAP730
  45 # ifdef OMAP_NAME
  46 #  undef  MULTI_OMAP1
  47 #  define MULTI_OMAP1
  48 # else
  49 #  define OMAP_NAME omap730
  50 # endif
  51 #endif
  52 #ifdef CONFIG_ARCH_OMAP850
  53 # ifdef OMAP_NAME
  54 #  undef  MULTI_OMAP1
  55 #  define MULTI_OMAP1
  56 # else
  57 #  define OMAP_NAME omap850
  58 # endif
  59 #endif
  60 #ifdef CONFIG_ARCH_OMAP15XX
  61 # ifdef OMAP_NAME
  62 #  undef  MULTI_OMAP1
  63 #  define MULTI_OMAP1
  64 # else
  65 #  define OMAP_NAME omap1510
  66 # endif
  67 #endif
  68 #ifdef CONFIG_ARCH_OMAP16XX
  69 # ifdef OMAP_NAME
  70 #  undef  MULTI_OMAP1
  71 #  define MULTI_OMAP1
  72 # else
  73 #  define OMAP_NAME omap16xx
  74 # endif
  75 #endif
  76 #ifdef CONFIG_ARCH_OMAP2PLUS
  77 # if (defined(OMAP_NAME) || defined(MULTI_OMAP1))
  78 #  error "OMAP1 and OMAP2PLUS can't be selected at the same time"
  79 # endif
  80 #endif
  81 #ifdef CONFIG_SOC_OMAP2420
  82 # ifdef OMAP_NAME
  83 #  undef  MULTI_OMAP2
  84 #  define MULTI_OMAP2
  85 # else
  86 #  define OMAP_NAME omap2420
  87 # endif
  88 #endif
  89 #ifdef CONFIG_SOC_OMAP2430
  90 # ifdef OMAP_NAME
  91 #  undef  MULTI_OMAP2
  92 #  define MULTI_OMAP2
  93 # else
  94 #  define OMAP_NAME omap2430
  95 # endif
  96 #endif
  97 #ifdef CONFIG_ARCH_OMAP3
  98 # ifdef OMAP_NAME
  99 #  undef  MULTI_OMAP2
 100 #  define MULTI_OMAP2
 101 # else
 102 #  define OMAP_NAME omap3
 103 # endif
 104 #endif
 105 #ifdef CONFIG_ARCH_OMAP4
 106 # ifdef OMAP_NAME
 107 #  undef  MULTI_OMAP2
 108 #  define MULTI_OMAP2
 109 # else
 110 #  define OMAP_NAME omap4
 111 # endif
 112 #endif
 113
 114 #ifdef CONFIG_SOC_OMAP5
 115 # ifdef OMAP_NAME
 116 #  undef  MULTI_OMAP2
 117 #  define MULTI_OMAP2
 118 # else
 119 #  define OMAP_NAME omap5
 120 # endif
 121 #endif
 122
 123 #ifdef CONFIG_SOC_AM33XX
 124 # ifdef OMAP_NAME
 125 #  undef  MULTI_OMAP2
 126 #  define MULTI_OMAP2
 127 # else
 128 #  define OMAP_NAME am33xx
 129 # endif
 130 #endif
 131
 132 /*
 133  * Omap device type i.e. EMU/HS/TST/GP/BAD
 134  */
 135 #define OMAP2_DEVICE_TYPE_TEST          0
 136 #define OMAP2_DEVICE_TYPE_EMU           1
 137 #define OMAP2_DEVICE_TYPE_SEC           2
 138 #define OMAP2_DEVICE_TYPE_GP            3
 139 #define OMAP2_DEVICE_TYPE_BAD           4
 140
 141 int omap_type(void);
 142
 143 /*
 144  * omap_rev bits:
 145  * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
 146  * CPU revision (See _REV_ defined in cpu.h)    [15:08]
 147  * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
 148  */
 149 unsigned int omap_rev(void);
 150
 151 /*
 152  * Get the CPU revision for OMAP devices
 153  */
 154 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
 155
 156 /*
 157  * Macros to group OMAP into cpu classes.
 158  * These can be used in most places.
 159  * cpu_is_omap7xx():    True for OMAP730, OMAP850
 160  * cpu_is_omap15xx():   True for OMAP1510, OMAP5910 and OMAP310
 161  * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
 162  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
 163  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
 164  * cpu_is_omap243x():   True for OMAP2430
 165  * cpu_is_omap343x():   True for OMAP3430
 166  * cpu_is_omap443x():   True for OMAP4430
 167  * cpu_is_omap446x():   True for OMAP4460
 168  * cpu_is_omap447x():   True for OMAP4470
 169  * soc_is_omap543x():   True for OMAP5430, OMAP5432
 170  */
 171 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
 172
 173 #define IS_OMAP_CLASS(class, id)                        \
 174 static inline int is_omap ##class (void)                \
 175 {                                                       \
 176         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 177 }
 178
 179 #define GET_AM_CLASS    ((omap_rev() >> 24) & 0xff)
 180
 181 #define IS_AM_CLASS(class, id)                          \
 182 static inline int is_am ##class (void)                  \
 183 {                                                       \
 184         return (GET_AM_CLASS == (id)) ? 1 : 0;          \
 185 }
 186
 187 #define GET_TI_CLASS    ((omap_rev() >> 24) & 0xff)
 188
 189 #define IS_TI_CLASS(class, id)                  \
 190 static inline int is_ti ##class (void)          \
 191 {                                                       \
 192         return (GET_TI_CLASS == (id)) ? 1 : 0;  \
 193 }
 194
 195 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 196
 197 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 198 static inline int is_omap ##subclass (void)             \
 199 {                                                       \
 200         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 201 }
 202
 203 #define IS_TI_SUBCLASS(subclass, id)                    \
 204 static inline int is_ti ##subclass (void)               \
 205 {                                                       \
 206         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 207 }
 208
 209 #define IS_AM_SUBCLASS(subclass, id)                    \
 210 static inline int is_am ##subclass (void)               \
 211 {                                                       \
 212         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 213 }
 214
 215 IS_OMAP_CLASS(7xx, 0x07)
 216 IS_OMAP_CLASS(15xx, 0x15)
 217 IS_OMAP_CLASS(16xx, 0x16)
 218 IS_OMAP_CLASS(24xx, 0x24)
 219 IS_OMAP_CLASS(34xx, 0x34)
 220 IS_OMAP_CLASS(44xx, 0x44)
 221 IS_AM_CLASS(35xx, 0x35)
 222 IS_OMAP_CLASS(54xx, 0x54)
 223 IS_AM_CLASS(33xx, 0x33)
 224
 225 IS_TI_CLASS(81xx, 0x81)
 226
 227 IS_OMAP_SUBCLASS(242x, 0x242)
 228 IS_OMAP_SUBCLASS(243x, 0x243)
 229 IS_OMAP_SUBCLASS(343x, 0x343)
 230 IS_OMAP_SUBCLASS(363x, 0x363)
 231 IS_OMAP_SUBCLASS(443x, 0x443)
 232 IS_OMAP_SUBCLASS(446x, 0x446)
 233 IS_OMAP_SUBCLASS(447x, 0x447)
 234 IS_OMAP_SUBCLASS(543x, 0x543)
 235
 236 IS_TI_SUBCLASS(816x, 0x816)
 237 IS_TI_SUBCLASS(814x, 0x814)
 238 IS_AM_SUBCLASS(335x, 0x335)
 239
 240 #define cpu_is_omap7xx()                0
 241 #define cpu_is_omap15xx()               0
 242 #define cpu_is_omap16xx()               0
 243 #define cpu_is_omap24xx()               0
 244 #define cpu_is_omap242x()               0
 245 #define cpu_is_omap243x()               0
 246 #define cpu_is_omap34xx()               0
 247 #define cpu_is_omap343x()               0
 248 #define cpu_is_ti81xx()                 0
 249 #define cpu_is_ti816x()                 0
 250 #define cpu_is_ti814x()                 0
 251 #define soc_is_am35xx()                 0
 252 #define soc_is_am33xx()                 0
 253 #define soc_is_am335x()                 0
 254 #define cpu_is_omap44xx()               0
 255 #define cpu_is_omap443x()               0
 256 #define cpu_is_omap446x()               0
 257 #define cpu_is_omap447x()               0
 258 #define soc_is_omap54xx()               0
 259 #define soc_is_omap543x()               0
 260
 261 #if defined(MULTI_OMAP1)
 262 # if defined(CONFIG_ARCH_OMAP730)
 263 #  undef  cpu_is_omap7xx
 264 #  define cpu_is_omap7xx()              is_omap7xx()
 265 # endif
 266 # if defined(CONFIG_ARCH_OMAP850)
 267 #  undef  cpu_is_omap7xx
 268 #  define cpu_is_omap7xx()              is_omap7xx()
 269 # endif
 270 # if defined(CONFIG_ARCH_OMAP15XX)
 271 #  undef  cpu_is_omap15xx
 272 #  define cpu_is_omap15xx()             is_omap15xx()
 273 # endif
 274 # if defined(CONFIG_ARCH_OMAP16XX)
 275 #  undef  cpu_is_omap16xx
 276 #  define cpu_is_omap16xx()             is_omap16xx()
 277 # endif
 278 #else
 279 # if defined(CONFIG_ARCH_OMAP730)
 280 #  undef  cpu_is_omap7xx
 281 #  define cpu_is_omap7xx()              1
 282 # endif
 283 # if defined(CONFIG_ARCH_OMAP850)
 284 #  undef  cpu_is_omap7xx
 285 #  define cpu_is_omap7xx()              1
 286 # endif
 287 # if defined(CONFIG_ARCH_OMAP15XX)
 288 #  undef  cpu_is_omap15xx
 289 #  define cpu_is_omap15xx()             1
 290 # endif
 291 # if defined(CONFIG_ARCH_OMAP16XX)
 292 #  undef  cpu_is_omap16xx
 293 #  define cpu_is_omap16xx()             1
 294 # endif
 295 #endif
 296
 297 #if defined(MULTI_OMAP2)
 298 # if defined(CONFIG_ARCH_OMAP2)
 299 #  undef  cpu_is_omap24xx
 300 #  define cpu_is_omap24xx()             is_omap24xx()
 301 # endif
 302 # if defined (CONFIG_SOC_OMAP2420)
 303 #  undef  cpu_is_omap242x
 304 #  define cpu_is_omap242x()             is_omap242x()
 305 # endif
 306 # if defined (CONFIG_SOC_OMAP2430)
 307 #  undef  cpu_is_omap243x
 308 #  define cpu_is_omap243x()             is_omap243x()
 309 # endif
 310 # if defined(CONFIG_ARCH_OMAP3)
 311 #  undef  cpu_is_omap34xx
 312 #  undef  cpu_is_omap343x
 313 #  define cpu_is_omap34xx()             is_omap34xx()
 314 #  define cpu_is_omap343x()             is_omap343x()
 315 # endif
 316 #else
 317 # if defined(CONFIG_ARCH_OMAP2)
 318 #  undef  cpu_is_omap24xx
 319 #  define cpu_is_omap24xx()             1
 320 # endif
 321 # if defined(CONFIG_SOC_OMAP2420)
 322 #  undef  cpu_is_omap242x
 323 #  define cpu_is_omap242x()             1
 324 # endif
 325 # if defined(CONFIG_SOC_OMAP2430)
 326 #  undef  cpu_is_omap243x
 327 #  define cpu_is_omap243x()             1
 328 # endif
 329 # if defined(CONFIG_ARCH_OMAP3)
 330 #  undef  cpu_is_omap34xx
 331 #  define cpu_is_omap34xx()             1
 332 # endif
 333 # if defined(CONFIG_SOC_OMAP3430)
 334 #  undef  cpu_is_omap343x
 335 #  define cpu_is_omap343x()             1
 336 # endif
 337 #endif
 338
 339 /*
 340  * Macros to detect individual cpu types.
 341  * These are only rarely needed.
 342  * cpu_is_omap310():    True for OMAP310
 343  * cpu_is_omap1510():   True for OMAP1510
 344  * cpu_is_omap1610():   True for OMAP1610
 345  * cpu_is_omap1611():   True for OMAP1611
 346  * cpu_is_omap5912():   True for OMAP5912
 347  * cpu_is_omap1621():   True for OMAP1621
 348  * cpu_is_omap1710():   True for OMAP1710
 349  * cpu_is_omap2420():   True for OMAP2420
 350  * cpu_is_omap2422():   True for OMAP2422
 351  * cpu_is_omap2423():   True for OMAP2423
 352  * cpu_is_omap2430():   True for OMAP2430
 353  * cpu_is_omap3430():   True for OMAP3430
 354  */
 355 #define GET_OMAP_TYPE   ((omap_rev() >> 16) & 0xffff)
 356
 357 #define IS_OMAP_TYPE(type, id)                          \
 358 static inline int is_omap ##type (void)                 \
 359 {                                                       \
 360         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 361 }
 362
 363 IS_OMAP_TYPE(310, 0x0310)
 364 IS_OMAP_TYPE(1510, 0x1510)
 365 IS_OMAP_TYPE(1610, 0x1610)
 366 IS_OMAP_TYPE(1611, 0x1611)
 367 IS_OMAP_TYPE(5912, 0x1611)
 368 IS_OMAP_TYPE(1621, 0x1621)
 369 IS_OMAP_TYPE(1710, 0x1710)
 370 IS_OMAP_TYPE(2420, 0x2420)
 371 IS_OMAP_TYPE(2422, 0x2422)
 372 IS_OMAP_TYPE(2423, 0x2423)
 373 IS_OMAP_TYPE(2430, 0x2430)
 374 IS_OMAP_TYPE(3430, 0x3430)
 375
 376 #define cpu_is_omap310()                0
 377 #define cpu_is_omap1510()               0
 378 #define cpu_is_omap1610()               0
 379 #define cpu_is_omap5912()               0
 380 #define cpu_is_omap1611()               0
 381 #define cpu_is_omap1621()               0
 382 #define cpu_is_omap1710()               0
 383 #define cpu_is_omap2420()               0
 384 #define cpu_is_omap2422()               0
 385 #define cpu_is_omap2423()               0
 386 #define cpu_is_omap2430()               0
 387 #define cpu_is_omap3430()               0
 388 #define cpu_is_omap3630()               0
 389 #define soc_is_omap5430()               0
 390
 391 /*
 392  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 393  * between 310 vs. 1510 and 1611B/5912 vs. 1710.
 394  */
 395
 396 #if defined(CONFIG_ARCH_OMAP15XX)
 397 # undef  cpu_is_omap310
 398 # undef  cpu_is_omap1510
 399 # define cpu_is_omap310()               is_omap310()
 400 # define cpu_is_omap1510()              is_omap1510()
 401 #endif
 402
 403 #if defined(CONFIG_ARCH_OMAP16XX)
 404 # undef  cpu_is_omap1610
 405 # undef  cpu_is_omap1611
 406 # undef  cpu_is_omap5912
 407 # undef  cpu_is_omap1621
 408 # undef  cpu_is_omap1710
 409 # define cpu_is_omap1610()              is_omap1610()
 410 # define cpu_is_omap1611()              is_omap1611()
 411 # define cpu_is_omap5912()              is_omap5912()
 412 # define cpu_is_omap1621()              is_omap1621()
 413 # define cpu_is_omap1710()              is_omap1710()
 414 #endif
 415
 416 #if defined(CONFIG_ARCH_OMAP2)
 417 # undef  cpu_is_omap2420
 418 # undef  cpu_is_omap2422
 419 # undef  cpu_is_omap2423
 420 # undef  cpu_is_omap2430
 421 # define cpu_is_omap2420()              is_omap2420()
 422 # define cpu_is_omap2422()              is_omap2422()
 423 # define cpu_is_omap2423()              is_omap2423()
 424 # define cpu_is_omap2430()              is_omap2430()
 425 #endif
 426
 427 #if defined(CONFIG_ARCH_OMAP3)
 428 # undef cpu_is_omap3430
 429 # undef cpu_is_ti81xx
 430 # undef cpu_is_ti816x
 431 # undef cpu_is_ti814x
 432 # undef soc_is_am35xx
 433 # define cpu_is_omap3430()              is_omap3430()
 434 # undef cpu_is_omap3630
 435 # define cpu_is_omap3630()              is_omap363x()
 436 # define cpu_is_ti81xx()                is_ti81xx()
 437 # define cpu_is_ti816x()                is_ti816x()
 438 # define cpu_is_ti814x()                is_ti814x()
 439 # define soc_is_am35xx()                is_am35xx()
 440 #endif
 441
 442 # if defined(CONFIG_SOC_AM33XX)
 443 # undef soc_is_am33xx
 444 # undef soc_is_am335x
 445 # define soc_is_am33xx()                is_am33xx()
 446 # define soc_is_am335x()                is_am335x()
 447 #endif
 448
 449 # if defined(CONFIG_ARCH_OMAP4)
 450 # undef cpu_is_omap44xx
 451 # undef cpu_is_omap443x
 452 # undef cpu_is_omap446x
 453 # undef cpu_is_omap447x
 454 # define cpu_is_omap44xx()              is_omap44xx()
 455 # define cpu_is_omap443x()              is_omap443x()
 456 # define cpu_is_omap446x()              is_omap446x()
 457 # define cpu_is_omap447x()              is_omap447x()
 458 # endif
 459
 460 # if defined(CONFIG_SOC_OMAP5)
 461 # undef soc_is_omap54xx
 462 # undef soc_is_omap543x
 463 # define soc_is_omap54xx()              is_omap54xx()
 464 # define soc_is_omap543x()              is_omap543x()
 465 #endif
 466
 467 /* Macros to detect if we have OMAP1 or OMAP2 */
 468 #define cpu_class_is_omap1()    (cpu_is_omap7xx() || cpu_is_omap15xx() || \
 469                                 cpu_is_omap16xx())
 470 #define cpu_class_is_omap2()    (cpu_is_omap24xx() || cpu_is_omap34xx() || \
 471                                 cpu_is_omap44xx() || soc_is_omap54xx() || \
 472                                 soc_is_am33xx())
 473
 474 /* Various silicon revisions for omap2 */
 475 #define OMAP242X_CLASS          0x24200024
 476 #define OMAP2420_REV_ES1_0      OMAP242X_CLASS
 477 #define OMAP2420_REV_ES2_0      (OMAP242X_CLASS | (0x1 << 8))
 478
 479 #define OMAP243X_CLASS          0x24300024
 480 #define OMAP2430_REV_ES1_0      OMAP243X_CLASS
 481
 482 #define OMAP343X_CLASS          0x34300034
 483 #define OMAP3430_REV_ES1_0      OMAP343X_CLASS
 484 #define OMAP3430_REV_ES2_0      (OMAP343X_CLASS | (0x1 << 8))
 485 #define OMAP3430_REV_ES2_1      (OMAP343X_CLASS | (0x2 << 8))
 486 #define OMAP3430_REV_ES3_0      (OMAP343X_CLASS | (0x3 << 8))
 487 #define OMAP3430_REV_ES3_1      (OMAP343X_CLASS | (0x4 << 8))
 488 #define OMAP3430_REV_ES3_1_2    (OMAP343X_CLASS | (0x5 << 8))
 489
 490 #define OMAP363X_CLASS          0x36300034
 491 #define OMAP3630_REV_ES1_0      OMAP363X_CLASS
 492 #define OMAP3630_REV_ES1_1      (OMAP363X_CLASS | (0x1 << 8))
 493 #define OMAP3630_REV_ES1_2      (OMAP363X_CLASS | (0x2 << 8))
 494
 495 #define TI816X_CLASS            0x81600034
 496 #define TI8168_REV_ES1_0        TI816X_CLASS
 497 #define TI8168_REV_ES1_1        (TI816X_CLASS | (0x1 << 8))
 498
 499 #define TI814X_CLASS            0x81400034
 500 #define TI8148_REV_ES1_0        TI814X_CLASS
 501 #define TI8148_REV_ES2_0        (TI814X_CLASS | (0x1 << 8))
 502 #define TI8148_REV_ES2_1        (TI814X_CLASS | (0x2 << 8))
 503
 504 #define AM35XX_CLASS            0x35170034
 505 #define AM35XX_REV_ES1_0        AM35XX_CLASS
 506 #define AM35XX_REV_ES1_1        (AM35XX_CLASS | (0x1 << 8))
 507
 508 #define AM335X_CLASS            0x33500033
 509 #define AM335X_REV_ES1_0        AM335X_CLASS
 510
 511 #define OMAP443X_CLASS          0x44300044
 512 #define OMAP4430_REV_ES1_0      (OMAP443X_CLASS | (0x10 << 8))
 513 #define OMAP4430_REV_ES2_0      (OMAP443X_CLASS | (0x20 << 8))
 514 #define OMAP4430_REV_ES2_1      (OMAP443X_CLASS | (0x21 << 8))
 515 #define OMAP4430_REV_ES2_2      (OMAP443X_CLASS | (0x22 << 8))
 516 #define OMAP4430_REV_ES2_3      (OMAP443X_CLASS | (0x23 << 8))
 517
 518 #define OMAP446X_CLASS          0x44600044
 519 #define OMAP4460_REV_ES1_0      (OMAP446X_CLASS | (0x10 << 8))
 520 #define OMAP4460_REV_ES1_1      (OMAP446X_CLASS | (0x11 << 8))
 521
 522 #define OMAP447X_CLASS          0x44700044
 523 #define OMAP4470_REV_ES1_0      (OMAP447X_CLASS | (0x10 << 8))
 524
 525 #define OMAP54XX_CLASS          0x54000054
 526 #define OMAP5430_REV_ES1_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
 527 #define OMAP5432_REV_ES1_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
 528
 529 void omap2xxx_check_revision(void);
 530 void omap3xxx_check_revision(void);
 531 void omap4xxx_check_revision(void);
 532 void omap5xxx_check_revision(void);
 533 void omap3xxx_check_features(void);
 534 void ti81xx_check_features(void);
 535 void omap4xxx_check_features(void);
 536
 537 /*
 538  * Runtime detection of OMAP3 features
 539  *
 540  * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
 541  *    family have OS-level control over the I/O chain clock.  This is
 542  *    to avoid a window during which wakeups could potentially be lost
 543  *    during powerdomain transitions.  If this bit is set, it
 544  *    indicates that the chip does support OS-level control of this
 545  *    feature.
 546  */
 547 extern u32 omap_features;
 548
 549 #define OMAP3_HAS_L2CACHE               BIT(0)
 550 #define OMAP3_HAS_IVA                   BIT(1)
 551 #define OMAP3_HAS_SGX                   BIT(2)
 552 #define OMAP3_HAS_NEON                  BIT(3)
 553 #define OMAP3_HAS_ISP                   BIT(4)
 554 #define OMAP3_HAS_192MHZ_CLK            BIT(5)
 555 #define OMAP3_HAS_IO_WAKEUP             BIT(6)
 556 #define OMAP3_HAS_SDRC                  BIT(7)
 557 #define OMAP3_HAS_IO_CHAIN_CTRL         BIT(8)
 558 #define OMAP4_HAS_MPU_1GHZ              BIT(9)
 559 #define OMAP4_HAS_MPU_1_2GHZ            BIT(10)
 560 #define OMAP4_HAS_MPU_1_5GHZ            BIT(11)
 561
 562
 563 #define OMAP3_HAS_FEATURE(feat,flag)                    \
 564 static inline unsigned int omap3_has_ ##feat(void)      \
 565 {                                                       \
 566         return omap_features & OMAP3_HAS_ ##flag;       \
 567 }                                                       \
 568
 569 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
 570 OMAP3_HAS_FEATURE(sgx, SGX)
 571 OMAP3_HAS_FEATURE(iva, IVA)
 572 OMAP3_HAS_FEATURE(neon, NEON)
 573 OMAP3_HAS_FEATURE(isp, ISP)
 574 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
 575 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
 576 OMAP3_HAS_FEATURE(sdrc, SDRC)
 577 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
 578
 579 /*
 580  * Runtime detection of OMAP4 features
 581  */
 582 #define OMAP4_HAS_FEATURE(feat, flag)                   \
 583 static inline unsigned int omap4_has_ ##feat(void)      \
 584 {                                                       \
 585         return omap_features & OMAP4_HAS_ ##flag;       \
 586 }                                                       \
 587
 588 OMAP4_HAS_FEATURE(mpu_1ghz, MPU_1GHZ)
 589 OMAP4_HAS_FEATURE(mpu_1_2ghz, MPU_1_2GHZ)
 590 OMAP4_HAS_FEATURE(mpu_1_5ghz, MPU_1_5GHZ)
 591
 592 #endif  /* __ASSEMBLY__ */
 593 #endif