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 Texas Instruments.
   9  *
  10  * Written by Tony Lindgren <tony.lindgren@nokia.com>
  11  *
  12  * Added OMAP4 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 #include <linux/bitops.h>
  34
  35 /*
  36  * Omap device type i.e. EMU/HS/TST/GP/BAD
  37  */
  38 #define OMAP2_DEVICE_TYPE_TEST          0
  39 #define OMAP2_DEVICE_TYPE_EMU           1
  40 #define OMAP2_DEVICE_TYPE_SEC           2
  41 #define OMAP2_DEVICE_TYPE_GP            3
  42 #define OMAP2_DEVICE_TYPE_BAD           4
  43
  44 int omap_type(void);
  45
  46 struct omap_chip_id {
  47         u8 oc;
  48         u8 type;
  49 };
  50
  51 #define OMAP_CHIP_INIT(x)       { .oc = x }
  52
  53 /*
  54  * omap_rev bits:
  55  * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
  56  * CPU revision (See _REV_ defined in cpu.h)    [15:08]
  57  * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
  58  */
  59 unsigned int omap_rev(void);
  60
  61 /*
  62  * Define CPU revision bits
  63  *
  64  * Verbose meaning of the revision bits may be different for a silicon
  65  * family. This difference can be handled separately.
  66  */
  67 #define OMAP_REVBITS_00         0x00
  68 #define OMAP_REVBITS_10         0x10
  69 #define OMAP_REVBITS_20         0x20
  70 #define OMAP_REVBITS_30         0x30
  71 #define OMAP_REVBITS_40         0x40
  72
  73 /*
  74  * Get the CPU revision for OMAP devices
  75  */
  76 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
  77
  78 /*
  79  * Test if multicore OMAP support is needed
  80  */
  81 #undef MULTI_OMAP1
  82 #undef MULTI_OMAP2
  83 #undef OMAP_NAME
  84
  85 #ifdef CONFIG_ARCH_OMAP730
  86 # ifdef OMAP_NAME
  87 #  undef  MULTI_OMAP1
  88 #  define MULTI_OMAP1
  89 # else
  90 #  define OMAP_NAME omap730
  91 # endif
  92 #endif
  93 #ifdef CONFIG_ARCH_OMAP850
  94 # ifdef OMAP_NAME
  95 #  undef  MULTI_OMAP1
  96 #  define MULTI_OMAP1
  97 # else
  98 #  define OMAP_NAME omap850
  99 # endif
 100 #endif
 101 #ifdef CONFIG_ARCH_OMAP15XX
 102 # ifdef OMAP_NAME
 103 #  undef  MULTI_OMAP1
 104 #  define MULTI_OMAP1
 105 # else
 106 #  define OMAP_NAME omap1510
 107 # endif
 108 #endif
 109 #ifdef CONFIG_ARCH_OMAP16XX
 110 # ifdef OMAP_NAME
 111 #  undef  MULTI_OMAP1
 112 #  define MULTI_OMAP1
 113 # else
 114 #  define OMAP_NAME omap16xx
 115 # endif
 116 #endif
 117 #if (defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX))
 118 # if (defined(OMAP_NAME) || defined(MULTI_OMAP1))
 119 #  error "OMAP1 and OMAP2 can't be selected at the same time"
 120 # endif
 121 #endif
 122 #ifdef CONFIG_ARCH_OMAP2420
 123 # ifdef OMAP_NAME
 124 #  undef  MULTI_OMAP2
 125 #  define MULTI_OMAP2
 126 # else
 127 #  define OMAP_NAME omap2420
 128 # endif
 129 #endif
 130 #ifdef CONFIG_ARCH_OMAP2430
 131 # ifdef OMAP_NAME
 132 #  undef  MULTI_OMAP2
 133 #  define MULTI_OMAP2
 134 # else
 135 #  define OMAP_NAME omap2430
 136 # endif
 137 #endif
 138 #ifdef CONFIG_ARCH_OMAP3430
 139 # ifdef OMAP_NAME
 140 #  undef  MULTI_OMAP2
 141 #  define MULTI_OMAP2
 142 # else
 143 #  define OMAP_NAME omap3430
 144 # endif
 145 #endif
 146
 147 /*
 148  * Macros to group OMAP into cpu classes.
 149  * These can be used in most places.
 150  * cpu_is_omap7xx():    True for OMAP730, OMAP850
 151  * cpu_is_omap15xx():   True for OMAP1510, OMAP5910 and OMAP310
 152  * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
 153  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
 154  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
 155  * cpu_is_omap243x():   True for OMAP2430
 156  * cpu_is_omap343x():   True for OMAP3430
 157  */
 158 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
 159
 160 #define IS_OMAP_CLASS(class, id)                        \
 161 static inline int is_omap ##class (void)                \
 162 {                                                       \
 163         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 164 }
 165
 166 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 167
 168 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 169 static inline int is_omap ##subclass (void)             \
 170 {                                                       \
 171         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 172 }
 173
 174 IS_OMAP_CLASS(7xx, 0x07)
 175 IS_OMAP_CLASS(15xx, 0x15)
 176 IS_OMAP_CLASS(16xx, 0x16)
 177 IS_OMAP_CLASS(24xx, 0x24)
 178 IS_OMAP_CLASS(34xx, 0x34)
 179
 180 IS_OMAP_SUBCLASS(242x, 0x242)
 181 IS_OMAP_SUBCLASS(243x, 0x243)
 182 IS_OMAP_SUBCLASS(343x, 0x343)
 183 IS_OMAP_SUBCLASS(363x, 0x363)
 184
 185 #define cpu_is_omap7xx()                0
 186 #define cpu_is_omap15xx()               0
 187 #define cpu_is_omap16xx()               0
 188 #define cpu_is_omap24xx()               0
 189 #define cpu_is_omap242x()               0
 190 #define cpu_is_omap243x()               0
 191 #define cpu_is_omap34xx()               0
 192 #define cpu_is_omap343x()               0
 193 #define cpu_is_omap44xx()               0
 194 #define cpu_is_omap443x()               0
 195
 196 #if defined(MULTI_OMAP1)
 197 # if defined(CONFIG_ARCH_OMAP730)
 198 #  undef  cpu_is_omap7xx
 199 #  define cpu_is_omap7xx()              is_omap7xx()
 200 # endif
 201 # if defined(CONFIG_ARCH_OMAP850)
 202 #  undef  cpu_is_omap7xx
 203 #  define cpu_is_omap7xx()              is_omap7xx()
 204 # endif
 205 # if defined(CONFIG_ARCH_OMAP15XX)
 206 #  undef  cpu_is_omap15xx
 207 #  define cpu_is_omap15xx()             is_omap15xx()
 208 # endif
 209 # if defined(CONFIG_ARCH_OMAP16XX)
 210 #  undef  cpu_is_omap16xx
 211 #  define cpu_is_omap16xx()             is_omap16xx()
 212 # endif
 213 #else
 214 # if defined(CONFIG_ARCH_OMAP730)
 215 #  undef  cpu_is_omap7xx
 216 #  define cpu_is_omap7xx()              1
 217 # endif
 218 # if defined(CONFIG_ARCH_OMAP850)
 219 #  undef  cpu_is_omap7xx
 220 #  define cpu_is_omap7xx()              1
 221 # endif
 222 # if defined(CONFIG_ARCH_OMAP15XX)
 223 #  undef  cpu_is_omap15xx
 224 #  define cpu_is_omap15xx()             1
 225 # endif
 226 # if defined(CONFIG_ARCH_OMAP16XX)
 227 #  undef  cpu_is_omap16xx
 228 #  define cpu_is_omap16xx()             1
 229 # endif
 230 #endif
 231
 232 #if defined(MULTI_OMAP2)
 233 # if defined(CONFIG_ARCH_OMAP24XX)
 234 #  undef  cpu_is_omap24xx
 235 #  undef  cpu_is_omap242x
 236 #  undef  cpu_is_omap243x
 237 #  define cpu_is_omap24xx()             is_omap24xx()
 238 #  define cpu_is_omap242x()             is_omap242x()
 239 #  define cpu_is_omap243x()             is_omap243x()
 240 # endif
 241 # if defined(CONFIG_ARCH_OMAP34XX)
 242 #  undef  cpu_is_omap34xx
 243 #  undef  cpu_is_omap343x
 244 #  define cpu_is_omap34xx()             is_omap34xx()
 245 #  define cpu_is_omap343x()             is_omap343x()
 246 # endif
 247 #else
 248 # if defined(CONFIG_ARCH_OMAP24XX)
 249 #  undef  cpu_is_omap24xx
 250 #  define cpu_is_omap24xx()             1
 251 # endif
 252 # if defined(CONFIG_ARCH_OMAP2420)
 253 #  undef  cpu_is_omap242x
 254 #  define cpu_is_omap242x()             1
 255 # endif
 256 # if defined(CONFIG_ARCH_OMAP2430)
 257 #  undef  cpu_is_omap243x
 258 #  define cpu_is_omap243x()             1
 259 # endif
 260 # if defined(CONFIG_ARCH_OMAP34XX)
 261 #  undef  cpu_is_omap34xx
 262 #  define cpu_is_omap34xx()             1
 263 # endif
 264 # if defined(CONFIG_ARCH_OMAP3430)
 265 #  undef  cpu_is_omap343x
 266 #  define cpu_is_omap343x()             1
 267 # endif
 268 #endif
 269
 270 /*
 271  * Macros to detect individual cpu types.
 272  * These are only rarely needed.
 273  * cpu_is_omap330():    True for OMAP330
 274  * cpu_is_omap730():    True for OMAP730
 275  * cpu_is_omap850():    True for OMAP850
 276  * cpu_is_omap1510():   True for OMAP1510
 277  * cpu_is_omap1610():   True for OMAP1610
 278  * cpu_is_omap1611():   True for OMAP1611
 279  * cpu_is_omap5912():   True for OMAP5912
 280  * cpu_is_omap1621():   True for OMAP1621
 281  * cpu_is_omap1710():   True for OMAP1710
 282  * cpu_is_omap2420():   True for OMAP2420
 283  * cpu_is_omap2422():   True for OMAP2422
 284  * cpu_is_omap2423():   True for OMAP2423
 285  * cpu_is_omap2430():   True for OMAP2430
 286  * cpu_is_omap3430():   True for OMAP3430
 287  */
 288 #define GET_OMAP_TYPE   ((omap_rev() >> 16) & 0xffff)
 289
 290 #define IS_OMAP_TYPE(type, id)                          \
 291 static inline int is_omap ##type (void)                 \
 292 {                                                       \
 293         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 294 }
 295
 296 IS_OMAP_TYPE(310, 0x0310)
 297 IS_OMAP_TYPE(730, 0x0730)
 298 IS_OMAP_TYPE(850, 0x0850)
 299 IS_OMAP_TYPE(1510, 0x1510)
 300 IS_OMAP_TYPE(1610, 0x1610)
 301 IS_OMAP_TYPE(1611, 0x1611)
 302 IS_OMAP_TYPE(5912, 0x1611)
 303 IS_OMAP_TYPE(1621, 0x1621)
 304 IS_OMAP_TYPE(1710, 0x1710)
 305 IS_OMAP_TYPE(2420, 0x2420)
 306 IS_OMAP_TYPE(2422, 0x2422)
 307 IS_OMAP_TYPE(2423, 0x2423)
 308 IS_OMAP_TYPE(2430, 0x2430)
 309 IS_OMAP_TYPE(3430, 0x3430)
 310
 311 #define cpu_is_omap310()                0
 312 #define cpu_is_omap730()                0
 313 #define cpu_is_omap850()                0
 314 #define cpu_is_omap1510()               0
 315 #define cpu_is_omap1610()               0
 316 #define cpu_is_omap5912()               0
 317 #define cpu_is_omap1611()               0
 318 #define cpu_is_omap1621()               0
 319 #define cpu_is_omap1710()               0
 320 #define cpu_is_omap2420()               0
 321 #define cpu_is_omap2422()               0
 322 #define cpu_is_omap2423()               0
 323 #define cpu_is_omap2430()               0
 324 #define cpu_is_omap3503()               0
 325 #define cpu_is_omap3515()               0
 326 #define cpu_is_omap3525()               0
 327 #define cpu_is_omap3530()               0
 328 #define cpu_is_omap3430()               0
 329 #define cpu_is_omap3630()               0
 330
 331 /*
 332  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 333  * between 730 vs 850, 330 vs. 1510 and 1611B/5912 vs. 1710.
 334  */
 335
 336 #if defined(CONFIG_ARCH_OMAP730)
 337 # undef  cpu_is_omap730
 338 # define cpu_is_omap730()               is_omap730()
 339 #endif
 340
 341 #if defined(CONFIG_ARCH_OMAP850)
 342 # undef  cpu_is_omap850
 343 # define cpu_is_omap850()               is_omap850()
 344 #endif
 345
 346 #if defined(CONFIG_ARCH_OMAP15XX)
 347 # undef  cpu_is_omap310
 348 # undef  cpu_is_omap1510
 349 # define cpu_is_omap310()               is_omap310()
 350 # define cpu_is_omap1510()              is_omap1510()
 351 #endif
 352
 353 #if defined(CONFIG_ARCH_OMAP16XX)
 354 # undef  cpu_is_omap1610
 355 # undef  cpu_is_omap1611
 356 # undef  cpu_is_omap5912
 357 # undef  cpu_is_omap1621
 358 # undef  cpu_is_omap1710
 359 # define cpu_is_omap1610()              is_omap1610()
 360 # define cpu_is_omap1611()              is_omap1611()
 361 # define cpu_is_omap5912()              is_omap5912()
 362 # define cpu_is_omap1621()              is_omap1621()
 363 # define cpu_is_omap1710()              is_omap1710()
 364 #endif
 365
 366 #if defined(CONFIG_ARCH_OMAP24XX)
 367 # undef  cpu_is_omap2420
 368 # undef  cpu_is_omap2422
 369 # undef  cpu_is_omap2423
 370 # undef  cpu_is_omap2430
 371 # define cpu_is_omap2420()              is_omap2420()
 372 # define cpu_is_omap2422()              is_omap2422()
 373 # define cpu_is_omap2423()              is_omap2423()
 374 # define cpu_is_omap2430()              is_omap2430()
 375 #endif
 376
 377 #if defined(CONFIG_ARCH_OMAP34XX)
 378 # undef cpu_is_omap3430
 379 # undef cpu_is_omap3503
 380 # undef cpu_is_omap3515
 381 # undef cpu_is_omap3525
 382 # undef cpu_is_omap3530
 383 # define cpu_is_omap3430()              is_omap3430()
 384 # define cpu_is_omap3503                (cpu_is_omap3430() &&           \
 385                                                 (!omap3_has_iva()) &&   \
 386                                                 (!omap3_has_sgx()))
 387 # define cpu_is_omap3515                (cpu_is_omap3430() &&           \
 388                                                 (omap3_has_iva()) &&    \
 389                                                 (!omap3_has_sgx()))
 390 # define cpu_is_omap3525                (cpu_is_omap3430() &&           \
 391                                                 (omap3_has_sgx()) &&    \
 392                                                 (!omap3_has_iva()))
 393 # define cpu_is_omap3530                (cpu_is_omap3430())
 394 # undef cpu_is_omap3630
 395 # define cpu_is_omap3630()              is_omap363x()
 396 #endif
 397
 398 # if defined(CONFIG_ARCH_OMAP4)
 399 # undef cpu_is_omap44xx
 400 # undef cpu_is_omap443x
 401 # define cpu_is_omap44xx()              1
 402 # define cpu_is_omap443x()              1
 403 # endif
 404
 405 /* Macros to detect if we have OMAP1 or OMAP2 */
 406 #define cpu_class_is_omap1()    (cpu_is_omap7xx() || cpu_is_omap15xx() || \
 407                                 cpu_is_omap16xx())
 408 #define cpu_class_is_omap2()    (cpu_is_omap24xx() || cpu_is_omap34xx() || \
 409                                 cpu_is_omap44xx())
 410
 411 /* Various silicon revisions for omap2 */
 412 #define OMAP242X_CLASS          0x24200024
 413 #define OMAP2420_REV_ES1_0      0x24200024
 414 #define OMAP2420_REV_ES2_0      0x24201024
 415
 416 #define OMAP243X_CLASS          0x24300024
 417 #define OMAP2430_REV_ES1_0      0x24300024
 418
 419 #define OMAP343X_CLASS          0x34300034
 420 #define OMAP3430_REV_ES1_0      0x34300034
 421 #define OMAP3430_REV_ES2_0      0x34301034
 422 #define OMAP3430_REV_ES2_1      0x34302034
 423 #define OMAP3430_REV_ES3_0      0x34303034
 424 #define OMAP3430_REV_ES3_1      0x34304034
 425
 426 #define OMAP3630_REV_ES1_0      0x36300034
 427
 428 #define OMAP35XX_CLASS          0x35000034
 429 #define OMAP3503_REV(v)         (OMAP35XX_CLASS | (0x3503 << 16) | (v << 12))
 430 #define OMAP3515_REV(v)         (OMAP35XX_CLASS | (0x3515 << 16) | (v << 12))
 431 #define OMAP3525_REV(v)         (OMAP35XX_CLASS | (0x3525 << 16) | (v << 12))
 432 #define OMAP3530_REV(v)         (OMAP35XX_CLASS | (0x3530 << 16) | (v << 12))
 433
 434 #define OMAP443X_CLASS          0x44300034
 435
 436 /*
 437  * omap_chip bits
 438  *
 439  * CHIP_IS_OMAP{2420,2430,3430} indicate that a particular structure is
 440  * valid on all chips of that type.  CHIP_IS_OMAP3430ES{1,2} indicates
 441  * something that is only valid on that particular ES revision.
 442  *
 443  * These bits may be ORed together to indicate structures that are
 444  * available on multiple chip types.
 445  *
 446  * To test whether a particular structure matches the current OMAP chip type,
 447  * use omap_chip_is().
 448  *
 449  */
 450 #define CHIP_IS_OMAP2420                (1 << 0)
 451 #define CHIP_IS_OMAP2430                (1 << 1)
 452 #define CHIP_IS_OMAP3430                (1 << 2)
 453 #define CHIP_IS_OMAP3430ES1             (1 << 3)
 454 #define CHIP_IS_OMAP3430ES2             (1 << 4)
 455 #define CHIP_IS_OMAP3430ES3_0           (1 << 5)
 456 #define CHIP_IS_OMAP3430ES3_1           (1 << 6)
 457
 458 #define CHIP_IS_OMAP24XX                (CHIP_IS_OMAP2420 | CHIP_IS_OMAP2430)
 459
 460 /*
 461  * "GE" here represents "greater than or equal to" in terms of ES
 462  * levels.  So CHIP_GE_OMAP3430ES2 is intended to match all OMAP3430
 463  * chips at ES2 and beyond, but not, for example, any OMAP lines after
 464  * OMAP3.
 465  */
 466 #define CHIP_GE_OMAP3430ES2             (CHIP_IS_OMAP3430ES2 | \
 467                                          CHIP_IS_OMAP3430ES3_0 | \
 468                                          CHIP_IS_OMAP3430ES3_1)
 469 #define CHIP_GE_OMAP3430ES3_1           (CHIP_IS_OMAP3430ES3_1)
 470
 471
 472 int omap_chip_is(struct omap_chip_id oci);
 473 void omap2_check_revision(void);
 474
 475 /*
 476  * Runtime detection of OMAP3 features
 477  */
 478 extern u32 omap3_features;
 479
 480 #define OMAP3_HAS_L2CACHE               BIT(0)
 481 #define OMAP3_HAS_IVA                   BIT(1)
 482 #define OMAP3_HAS_SGX                   BIT(2)
 483 #define OMAP3_HAS_NEON                  BIT(3)
 484 #define OMAP3_HAS_ISP                   BIT(4)
 485
 486 #define OMAP3_HAS_FEATURE(feat,flag)                    \
 487 static inline unsigned int omap3_has_ ##feat(void)      \
 488 {                                                       \
 489         return (omap3_features & OMAP3_HAS_ ##flag);    \
 490 }                                                       \
 491
 492 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
 493 OMAP3_HAS_FEATURE(sgx, SGX)
 494 OMAP3_HAS_FEATURE(iva, IVA)
 495 OMAP3_HAS_FEATURE(neon, NEON)
 496 OMAP3_HAS_FEATURE(isp, ISP)
 497
 498 #endif