arch/arm/mach-omap2/soc.h

   1 /*
   2  * OMAP cpu type detection
   3  *
   4  * Copyright (C) 2004, 2008 Nokia Corporation
   5  *
   6  * Copyright (C) 2009-11 Texas Instruments.
   7  *
   8  * Written by Tony Lindgren <tony.lindgren@nokia.com>
   9  *
  10  * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  25  *
  26  */
  27
  28 #include "omap24xx.h"
  29 #include "omap34xx.h"
  30 #include "omap44xx.h"
  31 #include "ti81xx.h"
  32 #include "am33xx.h"
  33 #include "omap54xx.h"
  34
  35 #ifndef __ASSEMBLY__
  36
  37 #include <linux/bitops.h>
  38
  39 /*
  40  * Test if multicore OMAP support is needed
  41  */
  42 #undef MULTI_OMAP2
  43 #undef OMAP_NAME
  44
  45 #ifdef CONFIG_ARCH_MULTIPLATFORM
  46 #define MULTI_OMAP2
  47 #endif
  48 #ifdef CONFIG_SOC_OMAP2420
  49 # ifdef OMAP_NAME
  50 #  undef  MULTI_OMAP2
  51 #  define MULTI_OMAP2
  52 # else
  53 #  define OMAP_NAME omap2420
  54 # endif
  55 #endif
  56 #ifdef CONFIG_SOC_OMAP2430
  57 # ifdef OMAP_NAME
  58 #  undef  MULTI_OMAP2
  59 #  define MULTI_OMAP2
  60 # else
  61 #  define OMAP_NAME omap2430
  62 # endif
  63 #endif
  64 #ifdef CONFIG_ARCH_OMAP3
  65 # ifdef OMAP_NAME
  66 #  undef  MULTI_OMAP2
  67 #  define MULTI_OMAP2
  68 # else
  69 #  define OMAP_NAME omap3
  70 # endif
  71 #endif
  72 #ifdef CONFIG_ARCH_OMAP4
  73 # ifdef OMAP_NAME
  74 #  undef  MULTI_OMAP2
  75 #  define MULTI_OMAP2
  76 # else
  77 #  define OMAP_NAME omap4
  78 # endif
  79 #endif
  80
  81 #ifdef CONFIG_SOC_OMAP5
  82 # ifdef OMAP_NAME
  83 #  undef  MULTI_OMAP2
  84 #  define MULTI_OMAP2
  85 # else
  86 #  define OMAP_NAME omap5
  87 # endif
  88 #endif
  89
  90 #ifdef CONFIG_SOC_AM33XX
  91 # ifdef OMAP_NAME
  92 #  undef  MULTI_OMAP2
  93 #  define MULTI_OMAP2
  94 # else
  95 #  define OMAP_NAME am33xx
  96 # endif
  97 #endif
  98
  99 #ifdef CONFIG_SOC_AM43XX
 100 # ifdef OMAP_NAME
 101 #  undef  MULTI_OMAP2
 102 #  define MULTI_OMAP2
 103 # else
 104 #  define OMAP_NAME am43xx
 105 # endif
 106 #endif
 107
 108 /*
 109  * Omap device type i.e. EMU/HS/TST/GP/BAD
 110  */
 111 #define OMAP2_DEVICE_TYPE_TEST          0
 112 #define OMAP2_DEVICE_TYPE_EMU           1
 113 #define OMAP2_DEVICE_TYPE_SEC           2
 114 #define OMAP2_DEVICE_TYPE_GP            3
 115 #define OMAP2_DEVICE_TYPE_BAD           4
 116
 117 int omap_type(void);
 118
 119 /*
 120  * omap_rev bits:
 121  * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
 122  * CPU revision (See _REV_ defined in cpu.h)    [15:08]
 123  * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
 124  */
 125 unsigned int omap_rev(void);
 126
 127 static inline int soc_is_omap(void)
 128 {
 129         return omap_rev() != 0;
 130 }
 131
 132 /*
 133  * Get the CPU revision for OMAP devices
 134  */
 135 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
 136
 137 /*
 138  * Macros to group OMAP into cpu classes.
 139  * These can be used in most places.
 140  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
 141  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
 142  * cpu_is_omap243x():   True for OMAP2430
 143  * cpu_is_omap343x():   True for OMAP3430
 144  * cpu_is_omap443x():   True for OMAP4430
 145  * cpu_is_omap446x():   True for OMAP4460
 146  * cpu_is_omap447x():   True for OMAP4470
 147  * soc_is_omap543x():   True for OMAP5430, OMAP5432
 148  */
 149 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
 150
 151 #define IS_OMAP_CLASS(class, id)                        \
 152 static inline int is_omap ##class (void)                \
 153 {                                                       \
 154         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 155 }
 156
 157 #define GET_AM_CLASS    ((omap_rev() >> 24) & 0xff)
 158
 159 #define IS_AM_CLASS(class, id)                          \
 160 static inline int is_am ##class (void)                  \
 161 {                                                       \
 162         return (GET_AM_CLASS == (id)) ? 1 : 0;          \
 163 }
 164
 165 #define GET_TI_CLASS    ((omap_rev() >> 24) & 0xff)
 166
 167 #define IS_TI_CLASS(class, id)                  \
 168 static inline int is_ti ##class (void)          \
 169 {                                                       \
 170         return (GET_TI_CLASS == (id)) ? 1 : 0;  \
 171 }
 172
 173 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 174
 175 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 176 static inline int is_omap ##subclass (void)             \
 177 {                                                       \
 178         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 179 }
 180
 181 #define IS_TI_SUBCLASS(subclass, id)                    \
 182 static inline int is_ti ##subclass (void)               \
 183 {                                                       \
 184         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 185 }
 186
 187 #define IS_AM_SUBCLASS(subclass, id)                    \
 188 static inline int is_am ##subclass (void)               \
 189 {                                                       \
 190         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 191 }
 192
 193 IS_OMAP_CLASS(24xx, 0x24)
 194 IS_OMAP_CLASS(34xx, 0x34)
 195 IS_OMAP_CLASS(44xx, 0x44)
 196 IS_AM_CLASS(35xx, 0x35)
 197 IS_OMAP_CLASS(54xx, 0x54)
 198 IS_AM_CLASS(33xx, 0x33)
 199 IS_AM_CLASS(43xx, 0x43)
 200
 201 IS_TI_CLASS(81xx, 0x81)
 202
 203 IS_OMAP_SUBCLASS(242x, 0x242)
 204 IS_OMAP_SUBCLASS(243x, 0x243)
 205 IS_OMAP_SUBCLASS(343x, 0x343)
 206 IS_OMAP_SUBCLASS(363x, 0x363)
 207 IS_OMAP_SUBCLASS(443x, 0x443)
 208 IS_OMAP_SUBCLASS(446x, 0x446)
 209 IS_OMAP_SUBCLASS(447x, 0x447)
 210 IS_OMAP_SUBCLASS(543x, 0x543)
 211
 212 IS_TI_SUBCLASS(816x, 0x816)
 213 IS_TI_SUBCLASS(814x, 0x814)
 214 IS_AM_SUBCLASS(335x, 0x335)
 215 IS_AM_SUBCLASS(437x, 0x437)
 216
 217 #define cpu_is_omap24xx()               0
 218 #define cpu_is_omap242x()               0
 219 #define cpu_is_omap243x()               0
 220 #define cpu_is_omap34xx()               0
 221 #define cpu_is_omap343x()               0
 222 #define cpu_is_ti81xx()                 0
 223 #define cpu_is_ti816x()                 0
 224 #define cpu_is_ti814x()                 0
 225 #define soc_is_am35xx()                 0
 226 #define soc_is_am33xx()                 0
 227 #define soc_is_am335x()                 0
 228 #define soc_is_am43xx()                 0
 229 #define soc_is_am437x()                 0
 230 #define cpu_is_omap44xx()               0
 231 #define cpu_is_omap443x()               0
 232 #define cpu_is_omap446x()               0
 233 #define cpu_is_omap447x()               0
 234 #define soc_is_omap54xx()               0
 235 #define soc_is_omap543x()               0
 236
 237 #if defined(MULTI_OMAP2)
 238 # if defined(CONFIG_ARCH_OMAP2)
 239 #  undef  cpu_is_omap24xx
 240 #  define cpu_is_omap24xx()             is_omap24xx()
 241 # endif
 242 # if defined (CONFIG_SOC_OMAP2420)
 243 #  undef  cpu_is_omap242x
 244 #  define cpu_is_omap242x()             is_omap242x()
 245 # endif
 246 # if defined (CONFIG_SOC_OMAP2430)
 247 #  undef  cpu_is_omap243x
 248 #  define cpu_is_omap243x()             is_omap243x()
 249 # endif
 250 # if defined(CONFIG_ARCH_OMAP3)
 251 #  undef  cpu_is_omap34xx
 252 #  undef  cpu_is_omap343x
 253 #  define cpu_is_omap34xx()             is_omap34xx()
 254 #  define cpu_is_omap343x()             is_omap343x()
 255 # endif
 256 #else
 257 # if defined(CONFIG_ARCH_OMAP2)
 258 #  undef  cpu_is_omap24xx
 259 #  define cpu_is_omap24xx()             1
 260 # endif
 261 # if defined(CONFIG_SOC_OMAP2420)
 262 #  undef  cpu_is_omap242x
 263 #  define cpu_is_omap242x()             1
 264 # endif
 265 # if defined(CONFIG_SOC_OMAP2430)
 266 #  undef  cpu_is_omap243x
 267 #  define cpu_is_omap243x()             1
 268 # endif
 269 # if defined(CONFIG_ARCH_OMAP3)
 270 #  undef  cpu_is_omap34xx
 271 #  define cpu_is_omap34xx()             1
 272 # endif
 273 # if defined(CONFIG_SOC_OMAP3430)
 274 #  undef  cpu_is_omap343x
 275 #  define cpu_is_omap343x()             1
 276 # endif
 277 #endif
 278
 279 /*
 280  * Macros to detect individual cpu types.
 281  * These are only rarely needed.
 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(2420, 0x2420)
 297 IS_OMAP_TYPE(2422, 0x2422)
 298 IS_OMAP_TYPE(2423, 0x2423)
 299 IS_OMAP_TYPE(2430, 0x2430)
 300 IS_OMAP_TYPE(3430, 0x3430)
 301
 302 #define cpu_is_omap2420()               0
 303 #define cpu_is_omap2422()               0
 304 #define cpu_is_omap2423()               0
 305 #define cpu_is_omap2430()               0
 306 #define cpu_is_omap3430()               0
 307 #define cpu_is_omap3630()               0
 308 #define soc_is_omap5430()               0
 309
 310 /* These are needed for the common code */
 311 #ifdef CONFIG_ARCH_OMAP2PLUS
 312 #define cpu_is_omap7xx()                0
 313 #define cpu_is_omap15xx()               0
 314 #define cpu_is_omap16xx()               0
 315 #define cpu_is_omap1510()               0
 316 #define cpu_is_omap1610()               0
 317 #define cpu_is_omap1611()               0
 318 #define cpu_is_omap1621()               0
 319 #define cpu_is_omap1710()               0
 320 #define cpu_class_is_omap1()            0
 321 #define cpu_class_is_omap2()            1
 322 #endif
 323
 324 #if defined(CONFIG_ARCH_OMAP2)
 325 # undef  cpu_is_omap2420
 326 # undef  cpu_is_omap2422
 327 # undef  cpu_is_omap2423
 328 # undef  cpu_is_omap2430
 329 # define cpu_is_omap2420()              is_omap2420()
 330 # define cpu_is_omap2422()              is_omap2422()
 331 # define cpu_is_omap2423()              is_omap2423()
 332 # define cpu_is_omap2430()              is_omap2430()
 333 #endif
 334
 335 #if defined(CONFIG_ARCH_OMAP3)
 336 # undef cpu_is_omap3430
 337 # undef cpu_is_ti81xx
 338 # undef cpu_is_ti816x
 339 # undef cpu_is_ti814x
 340 # undef soc_is_am35xx
 341 # define cpu_is_omap3430()              is_omap3430()
 342 # undef cpu_is_omap3630
 343 # define cpu_is_omap3630()              is_omap363x()
 344 # define cpu_is_ti81xx()                is_ti81xx()
 345 # define cpu_is_ti816x()                is_ti816x()
 346 # define cpu_is_ti814x()                is_ti814x()
 347 # define soc_is_am35xx()                is_am35xx()
 348 #endif
 349
 350 # if defined(CONFIG_SOC_AM33XX)
 351 # undef soc_is_am33xx
 352 # undef soc_is_am335x
 353 # define soc_is_am33xx()                is_am33xx()
 354 # define soc_is_am335x()                is_am335x()
 355 #endif
 356
 357 #ifdef  CONFIG_SOC_AM43XX
 358 # undef soc_is_am43xx
 359 # undef soc_is_am437x
 360 # define soc_is_am43xx()                is_am43xx()
 361 # define soc_is_am437x()                is_am437x()
 362 #endif
 363
 364 # if defined(CONFIG_ARCH_OMAP4)
 365 # undef cpu_is_omap44xx
 366 # undef cpu_is_omap443x
 367 # undef cpu_is_omap446x
 368 # undef cpu_is_omap447x
 369 # define cpu_is_omap44xx()              is_omap44xx()
 370 # define cpu_is_omap443x()              is_omap443x()
 371 # define cpu_is_omap446x()              is_omap446x()
 372 # define cpu_is_omap447x()              is_omap447x()
 373 # endif
 374
 375 # if defined(CONFIG_SOC_OMAP5)
 376 # undef soc_is_omap54xx
 377 # undef soc_is_omap543x
 378 # define soc_is_omap54xx()              is_omap54xx()
 379 # define soc_is_omap543x()              is_omap543x()
 380 #endif
 381
 382 /* Various silicon revisions for omap2 */
 383 #define OMAP242X_CLASS          0x24200024
 384 #define OMAP2420_REV_ES1_0      OMAP242X_CLASS
 385 #define OMAP2420_REV_ES2_0      (OMAP242X_CLASS | (0x1 << 8))
 386
 387 #define OMAP243X_CLASS          0x24300024
 388 #define OMAP2430_REV_ES1_0      OMAP243X_CLASS
 389
 390 #define OMAP343X_CLASS          0x34300034
 391 #define OMAP3430_REV_ES1_0      OMAP343X_CLASS
 392 #define OMAP3430_REV_ES2_0      (OMAP343X_CLASS | (0x1 << 8))
 393 #define OMAP3430_REV_ES2_1      (OMAP343X_CLASS | (0x2 << 8))
 394 #define OMAP3430_REV_ES3_0      (OMAP343X_CLASS | (0x3 << 8))
 395 #define OMAP3430_REV_ES3_1      (OMAP343X_CLASS | (0x4 << 8))
 396 #define OMAP3430_REV_ES3_1_2    (OMAP343X_CLASS | (0x5 << 8))
 397
 398 #define OMAP363X_CLASS          0x36300034
 399 #define OMAP3630_REV_ES1_0      OMAP363X_CLASS
 400 #define OMAP3630_REV_ES1_1      (OMAP363X_CLASS | (0x1 << 8))
 401 #define OMAP3630_REV_ES1_2      (OMAP363X_CLASS | (0x2 << 8))
 402
 403 #define TI816X_CLASS            0x81600034
 404 #define TI8168_REV_ES1_0        TI816X_CLASS
 405 #define TI8168_REV_ES1_1        (TI816X_CLASS | (0x1 << 8))
 406 #define TI8168_REV_ES2_0        (TI816X_CLASS | (0x2 << 8))
 407 #define TI8168_REV_ES2_1        (TI816X_CLASS | (0x3 << 8))
 408
 409 #define TI814X_CLASS            0x81400034
 410 #define TI8148_REV_ES1_0        TI814X_CLASS
 411 #define TI8148_REV_ES2_0        (TI814X_CLASS | (0x1 << 8))
 412 #define TI8148_REV_ES2_1        (TI814X_CLASS | (0x2 << 8))
 413
 414 #define AM35XX_CLASS            0x35170034
 415 #define AM35XX_REV_ES1_0        AM35XX_CLASS
 416 #define AM35XX_REV_ES1_1        (AM35XX_CLASS | (0x1 << 8))
 417
 418 #define AM335X_CLASS            0x33500033
 419 #define AM335X_REV_ES1_0        AM335X_CLASS
 420 #define AM335X_REV_ES2_0        (AM335X_CLASS | (0x1 << 8))
 421 #define AM335X_REV_ES2_1        (AM335X_CLASS | (0x2 << 8))
 422
 423 #define AM437X_CLASS            0x43700000
 424 #define AM437X_REV_ES1_0        AM437X_CLASS
 425
 426 #define OMAP443X_CLASS          0x44300044
 427 #define OMAP4430_REV_ES1_0      (OMAP443X_CLASS | (0x10 << 8))
 428 #define OMAP4430_REV_ES2_0      (OMAP443X_CLASS | (0x20 << 8))
 429 #define OMAP4430_REV_ES2_1      (OMAP443X_CLASS | (0x21 << 8))
 430 #define OMAP4430_REV_ES2_2      (OMAP443X_CLASS | (0x22 << 8))
 431 #define OMAP4430_REV_ES2_3      (OMAP443X_CLASS | (0x23 << 8))
 432
 433 #define OMAP446X_CLASS          0x44600044
 434 #define OMAP4460_REV_ES1_0      (OMAP446X_CLASS | (0x10 << 8))
 435 #define OMAP4460_REV_ES1_1      (OMAP446X_CLASS | (0x11 << 8))
 436
 437 #define OMAP447X_CLASS          0x44700044
 438 #define OMAP4470_REV_ES1_0      (OMAP447X_CLASS | (0x10 << 8))
 439
 440 #define OMAP54XX_CLASS          0x54000054
 441 #define OMAP5430_REV_ES1_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
 442 #define OMAP5430_REV_ES2_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
 443 #define OMAP5432_REV_ES1_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
 444 #define OMAP5432_REV_ES2_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
 445
 446 void omap2xxx_check_revision(void);
 447 void omap3xxx_check_revision(void);
 448 void omap4xxx_check_revision(void);
 449 void omap5xxx_check_revision(void);
 450 void omap3xxx_check_features(void);
 451 void ti81xx_check_features(void);
 452 void am33xx_check_features(void);
 453 void omap4xxx_check_features(void);
 454
 455 /*
 456  * Runtime detection of OMAP3 features
 457  *
 458  * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
 459  *    family have OS-level control over the I/O chain clock.  This is
 460  *    to avoid a window during which wakeups could potentially be lost
 461  *    during powerdomain transitions.  If this bit is set, it
 462  *    indicates that the chip does support OS-level control of this
 463  *    feature.
 464  */
 465 extern u32 omap_features;
 466
 467 #define OMAP3_HAS_L2CACHE               BIT(0)
 468 #define OMAP3_HAS_IVA                   BIT(1)
 469 #define OMAP3_HAS_SGX                   BIT(2)
 470 #define OMAP3_HAS_NEON                  BIT(3)
 471 #define OMAP3_HAS_ISP                   BIT(4)
 472 #define OMAP3_HAS_192MHZ_CLK            BIT(5)
 473 #define OMAP3_HAS_IO_WAKEUP             BIT(6)
 474 #define OMAP3_HAS_SDRC                  BIT(7)
 475 #define OMAP3_HAS_IO_CHAIN_CTRL         BIT(8)
 476 #define OMAP4_HAS_PERF_SILICON          BIT(9)
 477
 478
 479 #define OMAP3_HAS_FEATURE(feat,flag)                    \
 480 static inline unsigned int omap3_has_ ##feat(void)      \
 481 {                                                       \
 482         return omap_features & OMAP3_HAS_ ##flag;       \
 483 }                                                       \
 484
 485 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
 486 OMAP3_HAS_FEATURE(sgx, SGX)
 487 OMAP3_HAS_FEATURE(iva, IVA)
 488 OMAP3_HAS_FEATURE(neon, NEON)
 489 OMAP3_HAS_FEATURE(isp, ISP)
 490 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
 491 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
 492 OMAP3_HAS_FEATURE(sdrc, SDRC)
 493 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
 494
 495 /*
 496  * Runtime detection of OMAP4 features
 497  */
 498 #define OMAP4_HAS_FEATURE(feat, flag)                   \
 499 static inline unsigned int omap4_has_ ##feat(void)      \
 500 {                                                       \
 501         return omap_features & OMAP4_HAS_ ##flag;       \
 502 }                                                       \
 503
 504 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
 505
 506 /*
 507  * We need to make sure omap initcalls don't run when
 508  * multiplatform kernels are booted on other SoCs.
 509  */
 510 #define omap_initcall(level, fn)                \
 511 static int __init __used __##fn(void)           \
 512 {                                               \
 513         if (!soc_is_omap())                     \
 514                 return 0;                       \
 515         return fn();                            \
 516 }                                               \
 517 level(__##fn);
 518
 519 #define omap_early_initcall(fn)         omap_initcall(early_initcall, fn)
 520 #define omap_core_initcall(fn)          omap_initcall(core_initcall, fn)
 521 #define omap_postcore_initcall(fn)      omap_initcall(postcore_initcall, fn)
 522 #define omap_arch_initcall(fn)          omap_initcall(arch_initcall, fn)
 523 #define omap_subsys_initcall(fn)        omap_initcall(subsys_initcall, fn)
 524 #define omap_device_initcall(fn)        omap_initcall(device_initcall, fn)
 525 #define omap_late_initcall(fn)          omap_initcall(late_initcall, fn)
 526 #define omap_late_initcall_sync(fn)     omap_initcall(late_initcall_sync, fn)
 527
 528 #endif  /* __ASSEMBLY__ */
 529