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_SOC_OMAP2420
  46 # ifdef OMAP_NAME
  47 #  undef  MULTI_OMAP2
  48 #  define MULTI_OMAP2
  49 # else
  50 #  define OMAP_NAME omap2420
  51 # endif
  52 #endif
  53 #ifdef CONFIG_SOC_OMAP2430
  54 # ifdef OMAP_NAME
  55 #  undef  MULTI_OMAP2
  56 #  define MULTI_OMAP2
  57 # else
  58 #  define OMAP_NAME omap2430
  59 # endif
  60 #endif
  61 #ifdef CONFIG_ARCH_OMAP3
  62 # ifdef OMAP_NAME
  63 #  undef  MULTI_OMAP2
  64 #  define MULTI_OMAP2
  65 # else
  66 #  define OMAP_NAME omap3
  67 # endif
  68 #endif
  69 #ifdef CONFIG_ARCH_OMAP4
  70 # ifdef OMAP_NAME
  71 #  undef  MULTI_OMAP2
  72 #  define MULTI_OMAP2
  73 # else
  74 #  define OMAP_NAME omap4
  75 # endif
  76 #endif
  77
  78 #ifdef CONFIG_SOC_OMAP5
  79 # ifdef OMAP_NAME
  80 #  undef  MULTI_OMAP2
  81 #  define MULTI_OMAP2
  82 # else
  83 #  define OMAP_NAME omap5
  84 # endif
  85 #endif
  86
  87 #ifdef CONFIG_SOC_AM33XX
  88 # ifdef OMAP_NAME
  89 #  undef  MULTI_OMAP2
  90 #  define MULTI_OMAP2
  91 # else
  92 #  define OMAP_NAME am33xx
  93 # endif
  94 #endif
  95
  96 /*
  97  * Omap device type i.e. EMU/HS/TST/GP/BAD
  98  */
  99 #define OMAP2_DEVICE_TYPE_TEST          0
 100 #define OMAP2_DEVICE_TYPE_EMU           1
 101 #define OMAP2_DEVICE_TYPE_SEC           2
 102 #define OMAP2_DEVICE_TYPE_GP            3
 103 #define OMAP2_DEVICE_TYPE_BAD           4
 104
 105 int omap_type(void);
 106
 107 /*
 108  * omap_rev bits:
 109  * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
 110  * CPU revision (See _REV_ defined in cpu.h)    [15:08]
 111  * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
 112  */
 113 unsigned int omap_rev(void);
 114
 115 /*
 116  * Get the CPU revision for OMAP devices
 117  */
 118 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
 119
 120 /*
 121  * Macros to group OMAP into cpu classes.
 122  * These can be used in most places.
 123  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
 124  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
 125  * cpu_is_omap243x():   True for OMAP2430
 126  * cpu_is_omap343x():   True for OMAP3430
 127  * cpu_is_omap443x():   True for OMAP4430
 128  * cpu_is_omap446x():   True for OMAP4460
 129  * cpu_is_omap447x():   True for OMAP4470
 130  * soc_is_omap543x():   True for OMAP5430, OMAP5432
 131  */
 132 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
 133
 134 #define IS_OMAP_CLASS(class, id)                        \
 135 static inline int is_omap ##class (void)                \
 136 {                                                       \
 137         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 138 }
 139
 140 #define GET_AM_CLASS    ((omap_rev() >> 24) & 0xff)
 141
 142 #define IS_AM_CLASS(class, id)                          \
 143 static inline int is_am ##class (void)                  \
 144 {                                                       \
 145         return (GET_AM_CLASS == (id)) ? 1 : 0;          \
 146 }
 147
 148 #define GET_TI_CLASS    ((omap_rev() >> 24) & 0xff)
 149
 150 #define IS_TI_CLASS(class, id)                  \
 151 static inline int is_ti ##class (void)          \
 152 {                                                       \
 153         return (GET_TI_CLASS == (id)) ? 1 : 0;  \
 154 }
 155
 156 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 157
 158 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 159 static inline int is_omap ##subclass (void)             \
 160 {                                                       \
 161         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 162 }
 163
 164 #define IS_TI_SUBCLASS(subclass, id)                    \
 165 static inline int is_ti ##subclass (void)               \
 166 {                                                       \
 167         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 168 }
 169
 170 #define IS_AM_SUBCLASS(subclass, id)                    \
 171 static inline int is_am ##subclass (void)               \
 172 {                                                       \
 173         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 174 }
 175
 176 IS_OMAP_CLASS(24xx, 0x24)
 177 IS_OMAP_CLASS(34xx, 0x34)
 178 IS_OMAP_CLASS(44xx, 0x44)
 179 IS_AM_CLASS(35xx, 0x35)
 180 IS_OMAP_CLASS(54xx, 0x54)
 181 IS_AM_CLASS(33xx, 0x33)
 182
 183 IS_TI_CLASS(81xx, 0x81)
 184
 185 IS_OMAP_SUBCLASS(242x, 0x242)
 186 IS_OMAP_SUBCLASS(243x, 0x243)
 187 IS_OMAP_SUBCLASS(343x, 0x343)
 188 IS_OMAP_SUBCLASS(363x, 0x363)
 189 IS_OMAP_SUBCLASS(443x, 0x443)
 190 IS_OMAP_SUBCLASS(446x, 0x446)
 191 IS_OMAP_SUBCLASS(447x, 0x447)
 192 IS_OMAP_SUBCLASS(543x, 0x543)
 193
 194 IS_TI_SUBCLASS(816x, 0x816)
 195 IS_TI_SUBCLASS(814x, 0x814)
 196 IS_AM_SUBCLASS(335x, 0x335)
 197
 198 #define cpu_is_omap24xx()               0
 199 #define cpu_is_omap242x()               0
 200 #define cpu_is_omap243x()               0
 201 #define cpu_is_omap34xx()               0
 202 #define cpu_is_omap343x()               0
 203 #define cpu_is_ti81xx()                 0
 204 #define cpu_is_ti816x()                 0
 205 #define cpu_is_ti814x()                 0
 206 #define soc_is_am35xx()                 0
 207 #define soc_is_am33xx()                 0
 208 #define soc_is_am335x()                 0
 209 #define cpu_is_omap44xx()               0
 210 #define cpu_is_omap443x()               0
 211 #define cpu_is_omap446x()               0
 212 #define cpu_is_omap447x()               0
 213 #define soc_is_omap54xx()               0
 214 #define soc_is_omap543x()               0
 215
 216 #if defined(MULTI_OMAP2)
 217 # if defined(CONFIG_ARCH_OMAP2)
 218 #  undef  cpu_is_omap24xx
 219 #  define cpu_is_omap24xx()             is_omap24xx()
 220 # endif
 221 # if defined (CONFIG_SOC_OMAP2420)
 222 #  undef  cpu_is_omap242x
 223 #  define cpu_is_omap242x()             is_omap242x()
 224 # endif
 225 # if defined (CONFIG_SOC_OMAP2430)
 226 #  undef  cpu_is_omap243x
 227 #  define cpu_is_omap243x()             is_omap243x()
 228 # endif
 229 # if defined(CONFIG_ARCH_OMAP3)
 230 #  undef  cpu_is_omap34xx
 231 #  undef  cpu_is_omap343x
 232 #  define cpu_is_omap34xx()             is_omap34xx()
 233 #  define cpu_is_omap343x()             is_omap343x()
 234 # endif
 235 #else
 236 # if defined(CONFIG_ARCH_OMAP2)
 237 #  undef  cpu_is_omap24xx
 238 #  define cpu_is_omap24xx()             1
 239 # endif
 240 # if defined(CONFIG_SOC_OMAP2420)
 241 #  undef  cpu_is_omap242x
 242 #  define cpu_is_omap242x()             1
 243 # endif
 244 # if defined(CONFIG_SOC_OMAP2430)
 245 #  undef  cpu_is_omap243x
 246 #  define cpu_is_omap243x()             1
 247 # endif
 248 # if defined(CONFIG_ARCH_OMAP3)
 249 #  undef  cpu_is_omap34xx
 250 #  define cpu_is_omap34xx()             1
 251 # endif
 252 # if defined(CONFIG_SOC_OMAP3430)
 253 #  undef  cpu_is_omap343x
 254 #  define cpu_is_omap343x()             1
 255 # endif
 256 #endif
 257
 258 /*
 259  * Macros to detect individual cpu types.
 260  * These are only rarely needed.
 261  * cpu_is_omap2420():   True for OMAP2420
 262  * cpu_is_omap2422():   True for OMAP2422
 263  * cpu_is_omap2423():   True for OMAP2423
 264  * cpu_is_omap2430():   True for OMAP2430
 265  * cpu_is_omap3430():   True for OMAP3430
 266  */
 267 #define GET_OMAP_TYPE   ((omap_rev() >> 16) & 0xffff)
 268
 269 #define IS_OMAP_TYPE(type, id)                          \
 270 static inline int is_omap ##type (void)                 \
 271 {                                                       \
 272         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 273 }
 274
 275 IS_OMAP_TYPE(2420, 0x2420)
 276 IS_OMAP_TYPE(2422, 0x2422)
 277 IS_OMAP_TYPE(2423, 0x2423)
 278 IS_OMAP_TYPE(2430, 0x2430)
 279 IS_OMAP_TYPE(3430, 0x3430)
 280
 281 #define cpu_is_omap2420()               0
 282 #define cpu_is_omap2422()               0
 283 #define cpu_is_omap2423()               0
 284 #define cpu_is_omap2430()               0
 285 #define cpu_is_omap3430()               0
 286 #define cpu_is_omap3630()               0
 287 #define soc_is_omap5430()               0
 288
 289 /* These are needed for the common code */
 290 #ifdef CONFIG_ARCH_OMAP2PLUS
 291 #define cpu_is_omap7xx()                0
 292 #define cpu_is_omap15xx()               0
 293 #define cpu_is_omap16xx()               0
 294 #define cpu_is_omap1510()               0
 295 #define cpu_is_omap1610()               0
 296 #define cpu_is_omap1611()               0
 297 #define cpu_is_omap1621()               0
 298 #define cpu_is_omap1710()               0
 299 #define cpu_class_is_omap1()            0
 300 #define cpu_class_is_omap2()            1
 301 #endif
 302
 303 #if defined(CONFIG_ARCH_OMAP2)
 304 # undef  cpu_is_omap2420
 305 # undef  cpu_is_omap2422
 306 # undef  cpu_is_omap2423
 307 # undef  cpu_is_omap2430
 308 # define cpu_is_omap2420()              is_omap2420()
 309 # define cpu_is_omap2422()              is_omap2422()
 310 # define cpu_is_omap2423()              is_omap2423()
 311 # define cpu_is_omap2430()              is_omap2430()
 312 #endif
 313
 314 #if defined(CONFIG_ARCH_OMAP3)
 315 # undef cpu_is_omap3430
 316 # undef cpu_is_ti81xx
 317 # undef cpu_is_ti816x
 318 # undef cpu_is_ti814x
 319 # undef soc_is_am35xx
 320 # define cpu_is_omap3430()              is_omap3430()
 321 # undef cpu_is_omap3630
 322 # define cpu_is_omap3630()              is_omap363x()
 323 # define cpu_is_ti81xx()                is_ti81xx()
 324 # define cpu_is_ti816x()                is_ti816x()
 325 # define cpu_is_ti814x()                is_ti814x()
 326 # define soc_is_am35xx()                is_am35xx()
 327 #endif
 328
 329 # if defined(CONFIG_SOC_AM33XX)
 330 # undef soc_is_am33xx
 331 # undef soc_is_am335x
 332 # define soc_is_am33xx()                is_am33xx()
 333 # define soc_is_am335x()                is_am335x()
 334 #endif
 335
 336 # if defined(CONFIG_ARCH_OMAP4)
 337 # undef cpu_is_omap44xx
 338 # undef cpu_is_omap443x
 339 # undef cpu_is_omap446x
 340 # undef cpu_is_omap447x
 341 # define cpu_is_omap44xx()              is_omap44xx()
 342 # define cpu_is_omap443x()              is_omap443x()
 343 # define cpu_is_omap446x()              is_omap446x()
 344 # define cpu_is_omap447x()              is_omap447x()
 345 # endif
 346
 347 # if defined(CONFIG_SOC_OMAP5)
 348 # undef soc_is_omap54xx
 349 # undef soc_is_omap543x
 350 # define soc_is_omap54xx()              is_omap54xx()
 351 # define soc_is_omap543x()              is_omap543x()
 352 #endif
 353
 354 /* Various silicon revisions for omap2 */
 355 #define OMAP242X_CLASS          0x24200024
 356 #define OMAP2420_REV_ES1_0      OMAP242X_CLASS
 357 #define OMAP2420_REV_ES2_0      (OMAP242X_CLASS | (0x1 << 8))
 358
 359 #define OMAP243X_CLASS          0x24300024
 360 #define OMAP2430_REV_ES1_0      OMAP243X_CLASS
 361
 362 #define OMAP343X_CLASS          0x34300034
 363 #define OMAP3430_REV_ES1_0      OMAP343X_CLASS
 364 #define OMAP3430_REV_ES2_0      (OMAP343X_CLASS | (0x1 << 8))
 365 #define OMAP3430_REV_ES2_1      (OMAP343X_CLASS | (0x2 << 8))
 366 #define OMAP3430_REV_ES3_0      (OMAP343X_CLASS | (0x3 << 8))
 367 #define OMAP3430_REV_ES3_1      (OMAP343X_CLASS | (0x4 << 8))
 368 #define OMAP3430_REV_ES3_1_2    (OMAP343X_CLASS | (0x5 << 8))
 369
 370 #define OMAP363X_CLASS          0x36300034
 371 #define OMAP3630_REV_ES1_0      OMAP363X_CLASS
 372 #define OMAP3630_REV_ES1_1      (OMAP363X_CLASS | (0x1 << 8))
 373 #define OMAP3630_REV_ES1_2      (OMAP363X_CLASS | (0x2 << 8))
 374
 375 #define TI816X_CLASS            0x81600034
 376 #define TI8168_REV_ES1_0        TI816X_CLASS
 377 #define TI8168_REV_ES1_1        (TI816X_CLASS | (0x1 << 8))
 378
 379 #define TI814X_CLASS            0x81400034
 380 #define TI8148_REV_ES1_0        TI814X_CLASS
 381 #define TI8148_REV_ES2_0        (TI814X_CLASS | (0x1 << 8))
 382 #define TI8148_REV_ES2_1        (TI814X_CLASS | (0x2 << 8))
 383
 384 #define AM35XX_CLASS            0x35170034
 385 #define AM35XX_REV_ES1_0        AM35XX_CLASS
 386 #define AM35XX_REV_ES1_1        (AM35XX_CLASS | (0x1 << 8))
 387
 388 #define AM335X_CLASS            0x33500033
 389 #define AM335X_REV_ES1_0        AM335X_CLASS
 390
 391 #define OMAP443X_CLASS          0x44300044
 392 #define OMAP4430_REV_ES1_0      (OMAP443X_CLASS | (0x10 << 8))
 393 #define OMAP4430_REV_ES2_0      (OMAP443X_CLASS | (0x20 << 8))
 394 #define OMAP4430_REV_ES2_1      (OMAP443X_CLASS | (0x21 << 8))
 395 #define OMAP4430_REV_ES2_2      (OMAP443X_CLASS | (0x22 << 8))
 396 #define OMAP4430_REV_ES2_3      (OMAP443X_CLASS | (0x23 << 8))
 397
 398 #define OMAP446X_CLASS          0x44600044
 399 #define OMAP4460_REV_ES1_0      (OMAP446X_CLASS | (0x10 << 8))
 400 #define OMAP4460_REV_ES1_1      (OMAP446X_CLASS | (0x11 << 8))
 401
 402 #define OMAP447X_CLASS          0x44700044
 403 #define OMAP4470_REV_ES1_0      (OMAP447X_CLASS | (0x10 << 8))
 404
 405 #define OMAP54XX_CLASS          0x54000054
 406 #define OMAP5430_REV_ES1_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
 407 #define OMAP5432_REV_ES1_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
 408
 409 void omap2xxx_check_revision(void);
 410 void omap3xxx_check_revision(void);
 411 void omap4xxx_check_revision(void);
 412 void omap5xxx_check_revision(void);
 413 void omap3xxx_check_features(void);
 414 void ti81xx_check_features(void);
 415 void omap4xxx_check_features(void);
 416
 417 /*
 418  * Runtime detection of OMAP3 features
 419  *
 420  * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
 421  *    family have OS-level control over the I/O chain clock.  This is
 422  *    to avoid a window during which wakeups could potentially be lost
 423  *    during powerdomain transitions.  If this bit is set, it
 424  *    indicates that the chip does support OS-level control of this
 425  *    feature.
 426  */
 427 extern u32 omap_features;
 428
 429 #define OMAP3_HAS_L2CACHE               BIT(0)
 430 #define OMAP3_HAS_IVA                   BIT(1)
 431 #define OMAP3_HAS_SGX                   BIT(2)
 432 #define OMAP3_HAS_NEON                  BIT(3)
 433 #define OMAP3_HAS_ISP                   BIT(4)
 434 #define OMAP3_HAS_192MHZ_CLK            BIT(5)
 435 #define OMAP3_HAS_IO_WAKEUP             BIT(6)
 436 #define OMAP3_HAS_SDRC                  BIT(7)
 437 #define OMAP3_HAS_IO_CHAIN_CTRL         BIT(8)
 438 #define OMAP4_HAS_PERF_SILICON          BIT(9)
 439
 440
 441 #define OMAP3_HAS_FEATURE(feat,flag)                    \
 442 static inline unsigned int omap3_has_ ##feat(void)      \
 443 {                                                       \
 444         return omap_features & OMAP3_HAS_ ##flag;       \
 445 }                                                       \
 446
 447 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
 448 OMAP3_HAS_FEATURE(sgx, SGX)
 449 OMAP3_HAS_FEATURE(iva, IVA)
 450 OMAP3_HAS_FEATURE(neon, NEON)
 451 OMAP3_HAS_FEATURE(isp, ISP)
 452 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
 453 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
 454 OMAP3_HAS_FEATURE(sdrc, SDRC)
 455 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
 456
 457 /*
 458  * Runtime detection of OMAP4 features
 459  */
 460 #define OMAP4_HAS_FEATURE(feat, flag)                   \
 461 static inline unsigned int omap4_has_ ##feat(void)      \
 462 {                                                       \
 463         return omap_features & OMAP4_HAS_ ##flag;       \
 464 }                                                       \
 465
 466 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
 467
 468 #endif  /* __ASSEMBLY__ */
 469