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 /*
 100  * Omap device type i.e. EMU/HS/TST/GP/BAD
 101  */
 102 #define OMAP2_DEVICE_TYPE_TEST          0
 103 #define OMAP2_DEVICE_TYPE_EMU           1
 104 #define OMAP2_DEVICE_TYPE_SEC           2
 105 #define OMAP2_DEVICE_TYPE_GP            3
 106 #define OMAP2_DEVICE_TYPE_BAD           4
 107
 108 int omap_type(void);
 109
 110 /*
 111  * omap_rev bits:
 112  * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
 113  * CPU revision (See _REV_ defined in cpu.h)    [15:08]
 114  * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
 115  */
 116 unsigned int omap_rev(void);
 117
 118 static inline int soc_is_omap(void)
 119 {
 120         return omap_rev() != 0;
 121 }
 122
 123 /*
 124  * Get the CPU revision for OMAP devices
 125  */
 126 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
 127
 128 /*
 129  * Macros to group OMAP into cpu classes.
 130  * These can be used in most places.
 131  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
 132  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
 133  * cpu_is_omap243x():   True for OMAP2430
 134  * cpu_is_omap343x():   True for OMAP3430
 135  * cpu_is_omap443x():   True for OMAP4430
 136  * cpu_is_omap446x():   True for OMAP4460
 137  * cpu_is_omap447x():   True for OMAP4470
 138  * soc_is_omap543x():   True for OMAP5430, OMAP5432
 139  */
 140 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
 141
 142 #define IS_OMAP_CLASS(class, id)                        \
 143 static inline int is_omap ##class (void)                \
 144 {                                                       \
 145         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 146 }
 147
 148 #define GET_AM_CLASS    ((omap_rev() >> 24) & 0xff)
 149
 150 #define IS_AM_CLASS(class, id)                          \
 151 static inline int is_am ##class (void)                  \
 152 {                                                       \
 153         return (GET_AM_CLASS == (id)) ? 1 : 0;          \
 154 }
 155
 156 #define GET_TI_CLASS    ((omap_rev() >> 24) & 0xff)
 157
 158 #define IS_TI_CLASS(class, id)                  \
 159 static inline int is_ti ##class (void)          \
 160 {                                                       \
 161         return (GET_TI_CLASS == (id)) ? 1 : 0;  \
 162 }
 163
 164 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 165
 166 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 167 static inline int is_omap ##subclass (void)             \
 168 {                                                       \
 169         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 170 }
 171
 172 #define IS_TI_SUBCLASS(subclass, id)                    \
 173 static inline int is_ti ##subclass (void)               \
 174 {                                                       \
 175         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 176 }
 177
 178 #define IS_AM_SUBCLASS(subclass, id)                    \
 179 static inline int is_am ##subclass (void)               \
 180 {                                                       \
 181         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 182 }
 183
 184 IS_OMAP_CLASS(24xx, 0x24)
 185 IS_OMAP_CLASS(34xx, 0x34)
 186 IS_OMAP_CLASS(44xx, 0x44)
 187 IS_AM_CLASS(35xx, 0x35)
 188 IS_OMAP_CLASS(54xx, 0x54)
 189 IS_AM_CLASS(33xx, 0x33)
 190
 191 IS_TI_CLASS(81xx, 0x81)
 192
 193 IS_OMAP_SUBCLASS(242x, 0x242)
 194 IS_OMAP_SUBCLASS(243x, 0x243)
 195 IS_OMAP_SUBCLASS(343x, 0x343)
 196 IS_OMAP_SUBCLASS(363x, 0x363)
 197 IS_OMAP_SUBCLASS(443x, 0x443)
 198 IS_OMAP_SUBCLASS(446x, 0x446)
 199 IS_OMAP_SUBCLASS(447x, 0x447)
 200 IS_OMAP_SUBCLASS(543x, 0x543)
 201
 202 IS_TI_SUBCLASS(816x, 0x816)
 203 IS_TI_SUBCLASS(814x, 0x814)
 204 IS_AM_SUBCLASS(335x, 0x335)
 205
 206 #define cpu_is_omap24xx()               0
 207 #define cpu_is_omap242x()               0
 208 #define cpu_is_omap243x()               0
 209 #define cpu_is_omap34xx()               0
 210 #define cpu_is_omap343x()               0
 211 #define cpu_is_ti81xx()                 0
 212 #define cpu_is_ti816x()                 0
 213 #define cpu_is_ti814x()                 0
 214 #define soc_is_am35xx()                 0
 215 #define soc_is_am33xx()                 0
 216 #define soc_is_am335x()                 0
 217 #define cpu_is_omap44xx()               0
 218 #define cpu_is_omap443x()               0
 219 #define cpu_is_omap446x()               0
 220 #define cpu_is_omap447x()               0
 221 #define soc_is_omap54xx()               0
 222 #define soc_is_omap543x()               0
 223
 224 #if defined(MULTI_OMAP2)
 225 # if defined(CONFIG_ARCH_OMAP2)
 226 #  undef  cpu_is_omap24xx
 227 #  define cpu_is_omap24xx()             is_omap24xx()
 228 # endif
 229 # if defined (CONFIG_SOC_OMAP2420)
 230 #  undef  cpu_is_omap242x
 231 #  define cpu_is_omap242x()             is_omap242x()
 232 # endif
 233 # if defined (CONFIG_SOC_OMAP2430)
 234 #  undef  cpu_is_omap243x
 235 #  define cpu_is_omap243x()             is_omap243x()
 236 # endif
 237 # if defined(CONFIG_ARCH_OMAP3)
 238 #  undef  cpu_is_omap34xx
 239 #  undef  cpu_is_omap343x
 240 #  define cpu_is_omap34xx()             is_omap34xx()
 241 #  define cpu_is_omap343x()             is_omap343x()
 242 # endif
 243 #else
 244 # if defined(CONFIG_ARCH_OMAP2)
 245 #  undef  cpu_is_omap24xx
 246 #  define cpu_is_omap24xx()             1
 247 # endif
 248 # if defined(CONFIG_SOC_OMAP2420)
 249 #  undef  cpu_is_omap242x
 250 #  define cpu_is_omap242x()             1
 251 # endif
 252 # if defined(CONFIG_SOC_OMAP2430)
 253 #  undef  cpu_is_omap243x
 254 #  define cpu_is_omap243x()             1
 255 # endif
 256 # if defined(CONFIG_ARCH_OMAP3)
 257 #  undef  cpu_is_omap34xx
 258 #  define cpu_is_omap34xx()             1
 259 # endif
 260 # if defined(CONFIG_SOC_OMAP3430)
 261 #  undef  cpu_is_omap343x
 262 #  define cpu_is_omap343x()             1
 263 # endif
 264 #endif
 265
 266 /*
 267  * Macros to detect individual cpu types.
 268  * These are only rarely needed.
 269  * cpu_is_omap2420():   True for OMAP2420
 270  * cpu_is_omap2422():   True for OMAP2422
 271  * cpu_is_omap2423():   True for OMAP2423
 272  * cpu_is_omap2430():   True for OMAP2430
 273  * cpu_is_omap3430():   True for OMAP3430
 274  */
 275 #define GET_OMAP_TYPE   ((omap_rev() >> 16) & 0xffff)
 276
 277 #define IS_OMAP_TYPE(type, id)                          \
 278 static inline int is_omap ##type (void)                 \
 279 {                                                       \
 280         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 281 }
 282
 283 IS_OMAP_TYPE(2420, 0x2420)
 284 IS_OMAP_TYPE(2422, 0x2422)
 285 IS_OMAP_TYPE(2423, 0x2423)
 286 IS_OMAP_TYPE(2430, 0x2430)
 287 IS_OMAP_TYPE(3430, 0x3430)
 288
 289 #define cpu_is_omap2420()               0
 290 #define cpu_is_omap2422()               0
 291 #define cpu_is_omap2423()               0
 292 #define cpu_is_omap2430()               0
 293 #define cpu_is_omap3430()               0
 294 #define cpu_is_omap3630()               0
 295 #define soc_is_omap5430()               0
 296
 297 /* These are needed for the common code */
 298 #ifdef CONFIG_ARCH_OMAP2PLUS
 299 #define cpu_is_omap7xx()                0
 300 #define cpu_is_omap15xx()               0
 301 #define cpu_is_omap16xx()               0
 302 #define cpu_is_omap1510()               0
 303 #define cpu_is_omap1610()               0
 304 #define cpu_is_omap1611()               0
 305 #define cpu_is_omap1621()               0
 306 #define cpu_is_omap1710()               0
 307 #define cpu_class_is_omap1()            0
 308 #define cpu_class_is_omap2()            1
 309 #endif
 310
 311 #if defined(CONFIG_ARCH_OMAP2)
 312 # undef  cpu_is_omap2420
 313 # undef  cpu_is_omap2422
 314 # undef  cpu_is_omap2423
 315 # undef  cpu_is_omap2430
 316 # define cpu_is_omap2420()              is_omap2420()
 317 # define cpu_is_omap2422()              is_omap2422()
 318 # define cpu_is_omap2423()              is_omap2423()
 319 # define cpu_is_omap2430()              is_omap2430()
 320 #endif
 321
 322 #if defined(CONFIG_ARCH_OMAP3)
 323 # undef cpu_is_omap3430
 324 # undef cpu_is_ti81xx
 325 # undef cpu_is_ti816x
 326 # undef cpu_is_ti814x
 327 # undef soc_is_am35xx
 328 # define cpu_is_omap3430()              is_omap3430()
 329 # undef cpu_is_omap3630
 330 # define cpu_is_omap3630()              is_omap363x()
 331 # define cpu_is_ti81xx()                is_ti81xx()
 332 # define cpu_is_ti816x()                is_ti816x()
 333 # define cpu_is_ti814x()                is_ti814x()
 334 # define soc_is_am35xx()                is_am35xx()
 335 #endif
 336
 337 # if defined(CONFIG_SOC_AM33XX)
 338 # undef soc_is_am33xx
 339 # undef soc_is_am335x
 340 # define soc_is_am33xx()                is_am33xx()
 341 # define soc_is_am335x()                is_am335x()
 342 #endif
 343
 344 # if defined(CONFIG_ARCH_OMAP4)
 345 # undef cpu_is_omap44xx
 346 # undef cpu_is_omap443x
 347 # undef cpu_is_omap446x
 348 # undef cpu_is_omap447x
 349 # define cpu_is_omap44xx()              is_omap44xx()
 350 # define cpu_is_omap443x()              is_omap443x()
 351 # define cpu_is_omap446x()              is_omap446x()
 352 # define cpu_is_omap447x()              is_omap447x()
 353 # endif
 354
 355 # if defined(CONFIG_SOC_OMAP5)
 356 # undef soc_is_omap54xx
 357 # undef soc_is_omap543x
 358 # define soc_is_omap54xx()              is_omap54xx()
 359 # define soc_is_omap543x()              is_omap543x()
 360 #endif
 361
 362 /* Various silicon revisions for omap2 */
 363 #define OMAP242X_CLASS          0x24200024
 364 #define OMAP2420_REV_ES1_0      OMAP242X_CLASS
 365 #define OMAP2420_REV_ES2_0      (OMAP242X_CLASS | (0x1 << 8))
 366
 367 #define OMAP243X_CLASS          0x24300024
 368 #define OMAP2430_REV_ES1_0      OMAP243X_CLASS
 369
 370 #define OMAP343X_CLASS          0x34300034
 371 #define OMAP3430_REV_ES1_0      OMAP343X_CLASS
 372 #define OMAP3430_REV_ES2_0      (OMAP343X_CLASS | (0x1 << 8))
 373 #define OMAP3430_REV_ES2_1      (OMAP343X_CLASS | (0x2 << 8))
 374 #define OMAP3430_REV_ES3_0      (OMAP343X_CLASS | (0x3 << 8))
 375 #define OMAP3430_REV_ES3_1      (OMAP343X_CLASS | (0x4 << 8))
 376 #define OMAP3430_REV_ES3_1_2    (OMAP343X_CLASS | (0x5 << 8))
 377
 378 #define OMAP363X_CLASS          0x36300034
 379 #define OMAP3630_REV_ES1_0      OMAP363X_CLASS
 380 #define OMAP3630_REV_ES1_1      (OMAP363X_CLASS | (0x1 << 8))
 381 #define OMAP3630_REV_ES1_2      (OMAP363X_CLASS | (0x2 << 8))
 382
 383 #define TI816X_CLASS            0x81600034
 384 #define TI8168_REV_ES1_0        TI816X_CLASS
 385 #define TI8168_REV_ES1_1        (TI816X_CLASS | (0x1 << 8))
 386
 387 #define TI814X_CLASS            0x81400034
 388 #define TI8148_REV_ES1_0        TI814X_CLASS
 389 #define TI8148_REV_ES2_0        (TI814X_CLASS | (0x1 << 8))
 390 #define TI8148_REV_ES2_1        (TI814X_CLASS | (0x2 << 8))
 391
 392 #define AM35XX_CLASS            0x35170034
 393 #define AM35XX_REV_ES1_0        AM35XX_CLASS
 394 #define AM35XX_REV_ES1_1        (AM35XX_CLASS | (0x1 << 8))
 395
 396 #define AM335X_CLASS            0x33500033
 397 #define AM335X_REV_ES1_0        AM335X_CLASS
 398 #define AM335X_REV_ES2_0        (AM335X_CLASS | (0x1 << 8))
 399
 400 #define OMAP443X_CLASS          0x44300044
 401 #define OMAP4430_REV_ES1_0      (OMAP443X_CLASS | (0x10 << 8))
 402 #define OMAP4430_REV_ES2_0      (OMAP443X_CLASS | (0x20 << 8))
 403 #define OMAP4430_REV_ES2_1      (OMAP443X_CLASS | (0x21 << 8))
 404 #define OMAP4430_REV_ES2_2      (OMAP443X_CLASS | (0x22 << 8))
 405 #define OMAP4430_REV_ES2_3      (OMAP443X_CLASS | (0x23 << 8))
 406
 407 #define OMAP446X_CLASS          0x44600044
 408 #define OMAP4460_REV_ES1_0      (OMAP446X_CLASS | (0x10 << 8))
 409 #define OMAP4460_REV_ES1_1      (OMAP446X_CLASS | (0x11 << 8))
 410
 411 #define OMAP447X_CLASS          0x44700044
 412 #define OMAP4470_REV_ES1_0      (OMAP447X_CLASS | (0x10 << 8))
 413
 414 #define OMAP54XX_CLASS          0x54000054
 415 #define OMAP5430_REV_ES1_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
 416 #define OMAP5432_REV_ES1_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
 417
 418 void omap2xxx_check_revision(void);
 419 void omap3xxx_check_revision(void);
 420 void omap4xxx_check_revision(void);
 421 void omap5xxx_check_revision(void);
 422 void omap3xxx_check_features(void);
 423 void ti81xx_check_features(void);
 424 void omap4xxx_check_features(void);
 425
 426 /*
 427  * Runtime detection of OMAP3 features
 428  *
 429  * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
 430  *    family have OS-level control over the I/O chain clock.  This is
 431  *    to avoid a window during which wakeups could potentially be lost
 432  *    during powerdomain transitions.  If this bit is set, it
 433  *    indicates that the chip does support OS-level control of this
 434  *    feature.
 435  */
 436 extern u32 omap_features;
 437
 438 #define OMAP3_HAS_L2CACHE               BIT(0)
 439 #define OMAP3_HAS_IVA                   BIT(1)
 440 #define OMAP3_HAS_SGX                   BIT(2)
 441 #define OMAP3_HAS_NEON                  BIT(3)
 442 #define OMAP3_HAS_ISP                   BIT(4)
 443 #define OMAP3_HAS_192MHZ_CLK            BIT(5)
 444 #define OMAP3_HAS_IO_WAKEUP             BIT(6)
 445 #define OMAP3_HAS_SDRC                  BIT(7)
 446 #define OMAP3_HAS_IO_CHAIN_CTRL         BIT(8)
 447 #define OMAP4_HAS_PERF_SILICON          BIT(9)
 448
 449
 450 #define OMAP3_HAS_FEATURE(feat,flag)                    \
 451 static inline unsigned int omap3_has_ ##feat(void)      \
 452 {                                                       \
 453         return omap_features & OMAP3_HAS_ ##flag;       \
 454 }                                                       \
 455
 456 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
 457 OMAP3_HAS_FEATURE(sgx, SGX)
 458 OMAP3_HAS_FEATURE(iva, IVA)
 459 OMAP3_HAS_FEATURE(neon, NEON)
 460 OMAP3_HAS_FEATURE(isp, ISP)
 461 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
 462 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
 463 OMAP3_HAS_FEATURE(sdrc, SDRC)
 464 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
 465
 466 /*
 467  * Runtime detection of OMAP4 features
 468  */
 469 #define OMAP4_HAS_FEATURE(feat, flag)                   \
 470 static inline unsigned int omap4_has_ ##feat(void)      \
 471 {                                                       \
 472         return omap_features & OMAP4_HAS_ ##flag;       \
 473 }                                                       \
 474
 475 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
 476
 477 /*
 478  * We need to make sure omap initcalls don't run when
 479  * multiplatform kernels are booted on other SoCs.
 480  */
 481 #define omap_initcall(level, fn)                \
 482 static int __init __used __##fn(void)           \
 483 {                                               \
 484         if (!soc_is_omap())                     \
 485                 return 0;                       \
 486         return fn();                            \
 487 }                                               \
 488 level(__##fn);
 489
 490 #define omap_early_initcall(fn)         omap_initcall(early_initcall, fn)
 491 #define omap_core_initcall(fn)          omap_initcall(core_initcall, fn)
 492 #define omap_postcore_initcall(fn)      omap_initcall(postcore_initcall, fn)
 493 #define omap_arch_initcall(fn)          omap_initcall(arch_initcall, fn)
 494 #define omap_subsys_initcall(fn)        omap_initcall(subsys_initcall, fn)
 495 #define omap_device_initcall(fn)        omap_initcall(device_initcall, fn)
 496 #define omap_late_initcall(fn)          omap_initcall(late_initcall, fn)
 497
 498 #endif  /* __ASSEMBLY__ */
 499