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  * Added DRA7xxx specific defines - Sricharan R<r.sricharan@ti.com>
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  26  *
  27  */
  28
  29 #include "omap24xx.h"
  30 #include "omap34xx.h"
  31 #include "omap44xx.h"
  32 #include "ti81xx.h"
  33 #include "am33xx.h"
  34 #include "omap54xx.h"
  35
  36 #ifndef __ASSEMBLY__
  37
  38 #include <linux/bitops.h>
  39 #include <linux/of.h>
  40
  41 /*
  42  * OMAP2+ is always defined as ARCH_MULTIPLATFORM in Kconfig
  43  */
  44 #undef MULTI_OMAP2
  45 #define MULTI_OMAP2
  46
  47 /*
  48  * Omap device type i.e. EMU/HS/TST/GP/BAD
  49  */
  50 #define OMAP2_DEVICE_TYPE_TEST          0
  51 #define OMAP2_DEVICE_TYPE_EMU           1
  52 #define OMAP2_DEVICE_TYPE_SEC           2
  53 #define OMAP2_DEVICE_TYPE_GP            3
  54 #define OMAP2_DEVICE_TYPE_BAD           4
  55
  56 int omap_type(void);
  57
  58 /*
  59  * omap_rev bits:
  60  * SoC id bits  (0730, 1510, 1710, 2422...)     [31:16]
  61  * SoC revision (See _REV_ defined in cpu.h)    [15:08]
  62  * SoC class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
  63  */
  64 unsigned int omap_rev(void);
  65
  66 static inline int soc_is_omap(void)
  67 {
  68         return omap_rev() != 0;
  69 }
  70
  71 /*
  72  * Get the SoC revision for OMAP devices
  73  */
  74 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
  75
  76 /*
  77  * Macros to group OMAP into cpu classes.
  78  * These can be used in most places.
  79  * soc_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
  80  * soc_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
  81  * soc_is_omap243x():   True for OMAP2430
  82  * soc_is_omap343x():   True for OMAP3430
  83  * soc_is_omap443x():   True for OMAP4430
  84  * soc_is_omap446x():   True for OMAP4460
  85  * soc_is_omap447x():   True for OMAP4470
  86  * soc_is_omap543x():   True for OMAP5430, OMAP5432
  87  */
  88 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
  89
  90 #define IS_OMAP_CLASS(class, id)                        \
  91 static inline int is_omap ##class (void)                \
  92 {                                                       \
  93         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
  94 }
  95
  96 #define GET_AM_CLASS    ((omap_rev() >> 24) & 0xff)
  97
  98 #define IS_AM_CLASS(class, id)                          \
  99 static inline int is_am ##class (void)                  \
 100 {                                                       \
 101         return (GET_AM_CLASS == (id)) ? 1 : 0;          \
 102 }
 103
 104 #define GET_TI_CLASS    ((omap_rev() >> 24) & 0xff)
 105
 106 #define IS_TI_CLASS(class, id)                  \
 107 static inline int is_ti ##class (void)          \
 108 {                                                       \
 109         return (GET_TI_CLASS == (id)) ? 1 : 0;  \
 110 }
 111
 112 #define GET_DRA_CLASS   ((omap_rev() >> 24) & 0xff)
 113
 114 #define IS_DRA_CLASS(class, id)                         \
 115 static inline int is_dra ##class (void)                 \
 116 {                                                       \
 117         return (GET_DRA_CLASS == (id)) ? 1 : 0;         \
 118 }
 119
 120 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 121
 122 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 123 static inline int is_omap ##subclass (void)             \
 124 {                                                       \
 125         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 126 }
 127
 128 #define IS_TI_SUBCLASS(subclass, id)                    \
 129 static inline int is_ti ##subclass (void)               \
 130 {                                                       \
 131         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 132 }
 133
 134 #define IS_AM_SUBCLASS(subclass, id)                    \
 135 static inline int is_am ##subclass (void)               \
 136 {                                                       \
 137         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 138 }
 139
 140 #define IS_DRA_SUBCLASS(subclass, id)                   \
 141 static inline int is_dra ##subclass (void)              \
 142 {                                                       \
 143         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 144 }
 145
 146 IS_OMAP_CLASS(24xx, 0x24)
 147 IS_OMAP_CLASS(34xx, 0x34)
 148 IS_OMAP_CLASS(44xx, 0x44)
 149 IS_AM_CLASS(35xx, 0x35)
 150 IS_OMAP_CLASS(54xx, 0x54)
 151 IS_AM_CLASS(33xx, 0x33)
 152 IS_AM_CLASS(43xx, 0x43)
 153
 154 IS_TI_CLASS(81xx, 0x81)
 155 IS_DRA_CLASS(7xx, 0x7)
 156
 157 IS_OMAP_SUBCLASS(242x, 0x242)
 158 IS_OMAP_SUBCLASS(243x, 0x243)
 159 IS_OMAP_SUBCLASS(343x, 0x343)
 160 IS_OMAP_SUBCLASS(363x, 0x363)
 161 IS_OMAP_SUBCLASS(443x, 0x443)
 162 IS_OMAP_SUBCLASS(446x, 0x446)
 163 IS_OMAP_SUBCLASS(447x, 0x447)
 164 IS_OMAP_SUBCLASS(543x, 0x543)
 165
 166 IS_TI_SUBCLASS(816x, 0x816)
 167 IS_TI_SUBCLASS(814x, 0x814)
 168 IS_AM_SUBCLASS(335x, 0x335)
 169 IS_AM_SUBCLASS(437x, 0x437)
 170 IS_DRA_SUBCLASS(75x, 0x75)
 171 IS_DRA_SUBCLASS(72x, 0x72)
 172
 173 #define soc_is_ti81xx()                 0
 174 #define soc_is_ti816x()                 0
 175 #define soc_is_ti814x()                 0
 176 #define soc_is_am35xx()                 0
 177 #define soc_is_am33xx()                 0
 178 #define soc_is_am335x()                 0
 179 #define soc_is_am43xx()                 0
 180 #define soc_is_am437x()                 0
 181 #define soc_is_omap44xx()               0
 182 #define soc_is_omap443x()               0
 183 #define soc_is_omap446x()               0
 184 #define soc_is_omap447x()               0
 185 #define soc_is_omap54xx()               0
 186 #define soc_is_omap543x()               0
 187 #define soc_is_dra7xx()                 0
 188 #define soc_is_dra74x()                 0
 189 #define soc_is_dra72x()                 0
 190
 191 #if defined(CONFIG_ARCH_OMAP2)
 192 # define soc_is_omap24xx()              is_omap24xx()
 193 #else
 194 # define soc_is_omap24xx()              0
 195 #endif
 196 #if defined(CONFIG_SOC_OMAP2420)
 197 # define soc_is_omap242x()              is_omap242x()
 198 #else
 199 # define soc_is_omap242x()              0
 200 #endif
 201 #if defined(CONFIG_SOC_OMAP2430)
 202 # define soc_is_omap243x()              is_omap243x()
 203 #else
 204 # define soc_is_omap243x()              0
 205 #endif
 206 #if defined(CONFIG_ARCH_OMAP3)
 207 # define soc_is_omap34xx()              is_omap34xx()
 208 # define soc_is_omap343x()              is_omap343x()
 209 #else
 210 # define soc_is_omap34xx()              0
 211 # define soc_is_omap343x()              0
 212 #endif
 213
 214 /*
 215  * Macros to detect individual cpu types.
 216  * These are only rarely needed.
 217  * soc_is_omap2420():   True for OMAP2420
 218  * soc_is_omap2422():   True for OMAP2422
 219  * soc_is_omap2423():   True for OMAP2423
 220  * soc_is_omap2430():   True for OMAP2430
 221  * soc_is_omap3430():   True for OMAP3430
 222  */
 223 #define GET_OMAP_TYPE   ((omap_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(2420, 0x2420)
 232 IS_OMAP_TYPE(2422, 0x2422)
 233 IS_OMAP_TYPE(2423, 0x2423)
 234 IS_OMAP_TYPE(2430, 0x2430)
 235 IS_OMAP_TYPE(3430, 0x3430)
 236
 237 #define soc_is_omap2420()               0
 238 #define soc_is_omap2422()               0
 239 #define soc_is_omap2423()               0
 240 #define soc_is_omap2430()               0
 241 #define soc_is_omap3430()               0
 242 #define soc_is_omap3630()               0
 243 #define soc_is_omap5430()               0
 244
 245 /* These are needed for the common code */
 246 #define soc_is_omap7xx()                0
 247 #define soc_is_omap15xx()               0
 248 #define soc_is_omap16xx()               0
 249 #define soc_is_omap1510()               0
 250 #define soc_is_omap1610()               0
 251 #define soc_is_omap1611()               0
 252 #define soc_is_omap1621()               0
 253 #define soc_is_omap1710()               0
 254 #define cpu_class_is_omap1()            0
 255 #define cpu_class_is_omap2()            1
 256
 257 #if defined(CONFIG_ARCH_OMAP2)
 258 # undef  soc_is_omap2420
 259 # undef  soc_is_omap2422
 260 # undef  soc_is_omap2423
 261 # undef  soc_is_omap2430
 262 # define soc_is_omap2420()              is_omap2420()
 263 # define soc_is_omap2422()              is_omap2422()
 264 # define soc_is_omap2423()              is_omap2423()
 265 # define soc_is_omap2430()              is_omap2430()
 266 #endif
 267
 268 #if defined(CONFIG_ARCH_OMAP3)
 269 # undef soc_is_omap3430
 270 # undef soc_is_ti81xx
 271 # undef soc_is_ti816x
 272 # undef soc_is_ti814x
 273 # undef soc_is_am35xx
 274 # define soc_is_omap3430()              is_omap3430()
 275 # undef soc_is_omap3630
 276 # define soc_is_omap3630()              is_omap363x()
 277 # define soc_is_ti81xx()                is_ti81xx()
 278 # define soc_is_ti816x()                is_ti816x()
 279 # define soc_is_ti814x()                is_ti814x()
 280 # define soc_is_am35xx()                is_am35xx()
 281 #endif
 282
 283 # if defined(CONFIG_SOC_AM33XX)
 284 # undef soc_is_am33xx
 285 # undef soc_is_am335x
 286 # define soc_is_am33xx()                is_am33xx()
 287 # define soc_is_am335x()                is_am335x()
 288 #endif
 289
 290 #ifdef  CONFIG_SOC_AM43XX
 291 # undef soc_is_am43xx
 292 # undef soc_is_am437x
 293 # define soc_is_am43xx()                is_am43xx()
 294 # define soc_is_am437x()                is_am437x()
 295 #endif
 296
 297 # if defined(CONFIG_ARCH_OMAP4)
 298 # undef soc_is_omap44xx
 299 # undef soc_is_omap443x
 300 # undef soc_is_omap446x
 301 # undef soc_is_omap447x
 302 # define soc_is_omap44xx()              is_omap44xx()
 303 # define soc_is_omap443x()              is_omap443x()
 304 # define soc_is_omap446x()              is_omap446x()
 305 # define soc_is_omap447x()              is_omap447x()
 306 # endif
 307
 308 # if defined(CONFIG_SOC_OMAP5)
 309 # undef soc_is_omap54xx
 310 # undef soc_is_omap543x
 311 # define soc_is_omap54xx()              is_omap54xx()
 312 # define soc_is_omap543x()              is_omap543x()
 313 #endif
 314
 315 #if defined(CONFIG_SOC_DRA7XX)
 316 #undef soc_is_dra7xx
 317 #undef soc_is_dra74x
 318 #undef soc_is_dra72x
 319 #define soc_is_dra7xx() is_dra7xx()
 320 #define soc_is_dra74x() is_dra75x()
 321 #define soc_is_dra72x() is_dra72x()
 322 #endif
 323
 324 /* Various silicon revisions for omap2 */
 325 #define OMAP242X_CLASS          0x24200024
 326 #define OMAP2420_REV_ES1_0      OMAP242X_CLASS
 327 #define OMAP2420_REV_ES2_0      (OMAP242X_CLASS | (0x1 << 8))
 328
 329 #define OMAP243X_CLASS          0x24300024
 330 #define OMAP2430_REV_ES1_0      OMAP243X_CLASS
 331
 332 #define OMAP343X_CLASS          0x34300034
 333 #define OMAP3430_REV_ES1_0      OMAP343X_CLASS
 334 #define OMAP3430_REV_ES2_0      (OMAP343X_CLASS | (0x1 << 8))
 335 #define OMAP3430_REV_ES2_1      (OMAP343X_CLASS | (0x2 << 8))
 336 #define OMAP3430_REV_ES3_0      (OMAP343X_CLASS | (0x3 << 8))
 337 #define OMAP3430_REV_ES3_1      (OMAP343X_CLASS | (0x4 << 8))
 338 #define OMAP3430_REV_ES3_1_2    (OMAP343X_CLASS | (0x5 << 8))
 339
 340 #define OMAP363X_CLASS          0x36300034
 341 #define OMAP3630_REV_ES1_0      OMAP363X_CLASS
 342 #define OMAP3630_REV_ES1_1      (OMAP363X_CLASS | (0x1 << 8))
 343 #define OMAP3630_REV_ES1_2      (OMAP363X_CLASS | (0x2 << 8))
 344
 345 #define TI816X_CLASS            0x81600081
 346 #define TI8168_REV_ES1_0        TI816X_CLASS
 347 #define TI8168_REV_ES1_1        (TI816X_CLASS | (0x1 << 8))
 348 #define TI8168_REV_ES2_0        (TI816X_CLASS | (0x2 << 8))
 349 #define TI8168_REV_ES2_1        (TI816X_CLASS | (0x3 << 8))
 350
 351 #define TI814X_CLASS            0x81400081
 352 #define TI8148_REV_ES1_0        TI814X_CLASS
 353 #define TI8148_REV_ES2_0        (TI814X_CLASS | (0x1 << 8))
 354 #define TI8148_REV_ES2_1        (TI814X_CLASS | (0x2 << 8))
 355
 356 #define AM35XX_CLASS            0x35170034
 357 #define AM35XX_REV_ES1_0        AM35XX_CLASS
 358 #define AM35XX_REV_ES1_1        (AM35XX_CLASS | (0x1 << 8))
 359
 360 #define AM335X_CLASS            0x33500033
 361 #define AM335X_REV_ES1_0        AM335X_CLASS
 362 #define AM335X_REV_ES2_0        (AM335X_CLASS | (0x1 << 8))
 363 #define AM335X_REV_ES2_1        (AM335X_CLASS | (0x2 << 8))
 364
 365 #define AM437X_CLASS            0x43700000
 366 #define AM437X_REV_ES1_0        (AM437X_CLASS | (0x10 << 8))
 367 #define AM437X_REV_ES1_1        (AM437X_CLASS | (0x11 << 8))
 368 #define AM437X_REV_ES1_2        (AM437X_CLASS | (0x12 << 8))
 369
 370 #define OMAP443X_CLASS          0x44300044
 371 #define OMAP4430_REV_ES1_0      (OMAP443X_CLASS | (0x10 << 8))
 372 #define OMAP4430_REV_ES2_0      (OMAP443X_CLASS | (0x20 << 8))
 373 #define OMAP4430_REV_ES2_1      (OMAP443X_CLASS | (0x21 << 8))
 374 #define OMAP4430_REV_ES2_2      (OMAP443X_CLASS | (0x22 << 8))
 375 #define OMAP4430_REV_ES2_3      (OMAP443X_CLASS | (0x23 << 8))
 376
 377 #define OMAP446X_CLASS          0x44600044
 378 #define OMAP4460_REV_ES1_0      (OMAP446X_CLASS | (0x10 << 8))
 379 #define OMAP4460_REV_ES1_1      (OMAP446X_CLASS | (0x11 << 8))
 380
 381 #define OMAP447X_CLASS          0x44700044
 382 #define OMAP4470_REV_ES1_0      (OMAP447X_CLASS | (0x10 << 8))
 383
 384 #define OMAP54XX_CLASS          0x54000054
 385 #define OMAP5430_REV_ES2_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
 386 #define OMAP5432_REV_ES2_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
 387
 388 #define DRA7XX_CLASS            0x07000000
 389 #define DRA752_REV_ES1_0        (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
 390 #define DRA752_REV_ES1_1        (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
 391 #define DRA752_REV_ES2_0        (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))
 392 #define DRA722_REV_ES1_0        (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
 393 #define DRA722_REV_ES1_0        (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
 394 #define DRA722_REV_ES2_0        (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8))
 395
 396 void omap2xxx_check_revision(void);
 397 void omap3xxx_check_revision(void);
 398 void omap4xxx_check_revision(void);
 399 void omap5xxx_check_revision(void);
 400 void dra7xxx_check_revision(void);
 401 void omap3xxx_check_features(void);
 402 void ti81xx_check_features(void);
 403 void am33xx_check_features(void);
 404 void omap4xxx_check_features(void);
 405
 406 /*
 407  * Runtime detection of OMAP3 features
 408  *
 409  * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
 410  *    family have OS-level control over the I/O chain clock.  This is
 411  *    to avoid a window during which wakeups could potentially be lost
 412  *    during powerdomain transitions.  If this bit is set, it
 413  *    indicates that the chip does support OS-level control of this
 414  *    feature.
 415  */
 416 extern u32 omap_features;
 417
 418 #define OMAP3_HAS_L2CACHE               BIT(0)
 419 #define OMAP3_HAS_IVA                   BIT(1)
 420 #define OMAP3_HAS_SGX                   BIT(2)
 421 #define OMAP3_HAS_NEON                  BIT(3)
 422 #define OMAP3_HAS_ISP                   BIT(4)
 423 #define OMAP3_HAS_192MHZ_CLK            BIT(5)
 424 #define OMAP3_HAS_IO_WAKEUP             BIT(6)
 425 #define OMAP3_HAS_SDRC                  BIT(7)
 426 #define OMAP3_HAS_IO_CHAIN_CTRL         BIT(8)
 427 #define OMAP4_HAS_PERF_SILICON          BIT(9)
 428
 429
 430 #define OMAP3_HAS_FEATURE(feat,flag)                    \
 431 static inline unsigned int omap3_has_ ##feat(void)      \
 432 {                                                       \
 433         return omap_features & OMAP3_HAS_ ##flag;       \
 434 }                                                       \
 435
 436 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
 437 OMAP3_HAS_FEATURE(sgx, SGX)
 438 OMAP3_HAS_FEATURE(iva, IVA)
 439 OMAP3_HAS_FEATURE(neon, NEON)
 440 OMAP3_HAS_FEATURE(isp, ISP)
 441 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
 442 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
 443 OMAP3_HAS_FEATURE(sdrc, SDRC)
 444 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
 445
 446 /*
 447  * Runtime detection of OMAP4 features
 448  */
 449 #define OMAP4_HAS_FEATURE(feat, flag)                   \
 450 static inline unsigned int omap4_has_ ##feat(void)      \
 451 {                                                       \
 452         return omap_features & OMAP4_HAS_ ##flag;       \
 453 }                                                       \
 454
 455 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
 456
 457 /*
 458  * We need to make sure omap initcalls don't run when
 459  * multiplatform kernels are booted on other SoCs.
 460  */
 461 #define omap_initcall(level, fn)                \
 462 static int __init __used __##fn(void)           \
 463 {                                               \
 464         if (!soc_is_omap())                     \
 465                 return 0;                       \
 466         return fn();                            \
 467 }                                               \
 468 level(__##fn);
 469
 470 #define omap_early_initcall(fn)         omap_initcall(early_initcall, fn)
 471 #define omap_core_initcall(fn)          omap_initcall(core_initcall, fn)
 472 #define omap_postcore_initcall(fn)      omap_initcall(postcore_initcall, fn)
 473 #define omap_arch_initcall(fn)          omap_initcall(arch_initcall, fn)
 474 #define omap_subsys_initcall(fn)        omap_initcall(subsys_initcall, fn)
 475 #define omap_device_initcall(fn)        omap_initcall(device_initcall, fn)
 476 #define omap_late_initcall(fn)          omap_initcall(late_initcall, fn)
 477 #define omap_late_initcall_sync(fn)     omap_initcall(late_initcall_sync, fn)
 478
 479 /* Legacy defines, these can be removed when users are removed */
 480 #define cpu_is_omap2420()       soc_is_omap2420()
 481 #define cpu_is_omap2422()       soc_is_omap2422()
 482 #define cpu_is_omap242x()       soc_is_omap242x()
 483 #define cpu_is_omap2430()       soc_is_omap2430()
 484 #define cpu_is_omap243x()       soc_is_omap243x()
 485 #define cpu_is_omap24xx()       soc_is_omap24xx()
 486 #define cpu_is_omap3430()       soc_is_omap3430()
 487 #define cpu_is_omap343x()       soc_is_omap343x()
 488 #define cpu_is_omap34xx()       soc_is_omap34xx()
 489 #define cpu_is_omap3630()       soc_is_omap3630()
 490 #define cpu_is_omap443x()       soc_is_omap443x()
 491 #define cpu_is_omap446x()       soc_is_omap446x()
 492 #define cpu_is_omap44xx()       soc_is_omap44xx()
 493 #define cpu_is_ti814x()         soc_is_ti814x()
 494 #define cpu_is_ti816x()         soc_is_ti816x()
 495 #define cpu_is_ti81xx()         soc_is_ti81xx()
 496
 497 #endif  /* __ASSEMBLY__ */