release/src-rt-6.x.4708/linux/linux-2.6.36/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 #include <plat/multi.h>
  35
  36 /*
  37  * Omap device type i.e. EMU/HS/TST/GP/BAD
  38  */
  39 #define OMAP2_DEVICE_TYPE_TEST          0
  40 #define OMAP2_DEVICE_TYPE_EMU           1
  41 #define OMAP2_DEVICE_TYPE_SEC           2
  42 #define OMAP2_DEVICE_TYPE_GP            3
  43 #define OMAP2_DEVICE_TYPE_BAD           4
  44
  45 int omap_type(void);
  46
  47 struct omap_chip_id {
  48         u16 oc;
  49         u8 type;
  50 };
  51
  52 #define OMAP_CHIP_INIT(x)       { .oc = x }
  53
  54 /*
  55  * omap_rev bits:
  56  * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
  57  * CPU revision (See _REV_ defined in cpu.h)    [15:08]
  58  * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
  59  */
  60 unsigned int omap_rev(void);
  61
  62 /*
  63  * Define CPU revision bits
  64  *
  65  * Verbose meaning of the revision bits may be different for a silicon
  66  * family. This difference can be handled separately.
  67  */
  68 #define OMAP_REVBITS_00         0x00
  69 #define OMAP_REVBITS_01         0x01
  70 #define OMAP_REVBITS_02         0x02
  71 #define OMAP_REVBITS_10         0x10
  72 #define OMAP_REVBITS_20         0x20
  73 #define OMAP_REVBITS_30         0x30
  74 #define OMAP_REVBITS_40         0x40
  75
  76 /*
  77  * Get the CPU revision for OMAP devices
  78  */
  79 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
  80
  81 /*
  82  * Macros to group OMAP into cpu classes.
  83  * These can be used in most places.
  84  * cpu_is_omap7xx():    True for OMAP730, OMAP850
  85  * cpu_is_omap15xx():   True for OMAP1510, OMAP5910 and OMAP310
  86  * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
  87  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
  88  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
  89  * cpu_is_omap243x():   True for OMAP2430
  90  * cpu_is_omap343x():   True for OMAP3430
  91  * cpu_is_omap443x():   True for OMAP4430
  92  */
  93 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
  94
  95 #define IS_OMAP_CLASS(class, id)                        \
  96 static inline int is_omap ##class (void)                \
  97 {                                                       \
  98         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
  99 }
 100
 101 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 102
 103 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 104 static inline int is_omap ##subclass (void)             \
 105 {                                                       \
 106         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 107 }
 108
 109 IS_OMAP_CLASS(7xx, 0x07)
 110 IS_OMAP_CLASS(15xx, 0x15)
 111 IS_OMAP_CLASS(16xx, 0x16)
 112 IS_OMAP_CLASS(24xx, 0x24)
 113 IS_OMAP_CLASS(34xx, 0x34)
 114 IS_OMAP_CLASS(44xx, 0x44)
 115
 116 IS_OMAP_SUBCLASS(242x, 0x242)
 117 IS_OMAP_SUBCLASS(243x, 0x243)
 118 IS_OMAP_SUBCLASS(343x, 0x343)
 119 IS_OMAP_SUBCLASS(363x, 0x363)
 120 IS_OMAP_SUBCLASS(443x, 0x443)
 121
 122 #define cpu_is_omap7xx()                0
 123 #define cpu_is_omap15xx()               0
 124 #define cpu_is_omap16xx()               0
 125 #define cpu_is_omap24xx()               0
 126 #define cpu_is_omap242x()               0
 127 #define cpu_is_omap243x()               0
 128 #define cpu_is_omap34xx()               0
 129 #define cpu_is_omap343x()               0
 130 #define cpu_is_omap44xx()               0
 131 #define cpu_is_omap443x()               0
 132
 133 #if defined(MULTI_OMAP1)
 134 # if defined(CONFIG_ARCH_OMAP730)
 135 #  undef  cpu_is_omap7xx
 136 #  define cpu_is_omap7xx()              is_omap7xx()
 137 # endif
 138 # if defined(CONFIG_ARCH_OMAP850)
 139 #  undef  cpu_is_omap7xx
 140 #  define cpu_is_omap7xx()              is_omap7xx()
 141 # endif
 142 # if defined(CONFIG_ARCH_OMAP15XX)
 143 #  undef  cpu_is_omap15xx
 144 #  define cpu_is_omap15xx()             is_omap15xx()
 145 # endif
 146 # if defined(CONFIG_ARCH_OMAP16XX)
 147 #  undef  cpu_is_omap16xx
 148 #  define cpu_is_omap16xx()             is_omap16xx()
 149 # endif
 150 #else
 151 # if defined(CONFIG_ARCH_OMAP730)
 152 #  undef  cpu_is_omap7xx
 153 #  define cpu_is_omap7xx()              1
 154 # endif
 155 # if defined(CONFIG_ARCH_OMAP850)
 156 #  undef  cpu_is_omap7xx
 157 #  define cpu_is_omap7xx()              1
 158 # endif
 159 # if defined(CONFIG_ARCH_OMAP15XX)
 160 #  undef  cpu_is_omap15xx
 161 #  define cpu_is_omap15xx()             1
 162 # endif
 163 # if defined(CONFIG_ARCH_OMAP16XX)
 164 #  undef  cpu_is_omap16xx
 165 #  define cpu_is_omap16xx()             1
 166 # endif
 167 #endif
 168
 169 #if defined(MULTI_OMAP2)
 170 # if defined(CONFIG_ARCH_OMAP2)
 171 #  undef  cpu_is_omap24xx
 172 #  define cpu_is_omap24xx()             is_omap24xx()
 173 # endif
 174 # if defined(CONFIG_ARCH_OMAP2420)
 175 #  undef  cpu_is_omap242x
 176 #  define cpu_is_omap242x()             is_omap242x()
 177 # endif
 178 # if defined(CONFIG_ARCH_OMAP2430)
 179 #  undef  cpu_is_omap243x
 180 #  define cpu_is_omap243x()             is_omap243x()
 181 # endif
 182 # if defined(CONFIG_ARCH_OMAP3)
 183 #  undef  cpu_is_omap34xx
 184 #  undef  cpu_is_omap343x
 185 #  define cpu_is_omap34xx()             is_omap34xx()
 186 #  define cpu_is_omap343x()             is_omap343x()
 187 # endif
 188 #else
 189 # if defined(CONFIG_ARCH_OMAP2)
 190 #  undef  cpu_is_omap24xx
 191 #  define cpu_is_omap24xx()             1
 192 # endif
 193 # if defined(CONFIG_ARCH_OMAP2420)
 194 #  undef  cpu_is_omap242x
 195 #  define cpu_is_omap242x()             1
 196 # endif
 197 # if defined(CONFIG_ARCH_OMAP2430)
 198 #  undef  cpu_is_omap243x
 199 #  define cpu_is_omap243x()             1
 200 # endif
 201 # if defined(CONFIG_ARCH_OMAP3)
 202 #  undef  cpu_is_omap34xx
 203 #  define cpu_is_omap34xx()             1
 204 # endif
 205 # if defined(CONFIG_ARCH_OMAP3430)
 206 #  undef  cpu_is_omap343x
 207 #  define cpu_is_omap343x()             1
 208 # endif
 209 #endif
 210
 211 /*
 212  * Macros to detect individual cpu types.
 213  * These are only rarely needed.
 214  * cpu_is_omap330():    True for OMAP330
 215  * cpu_is_omap730():    True for OMAP730
 216  * cpu_is_omap850():    True for OMAP850
 217  * cpu_is_omap1510():   True for OMAP1510
 218  * cpu_is_omap1610():   True for OMAP1610
 219  * cpu_is_omap1611():   True for OMAP1611
 220  * cpu_is_omap5912():   True for OMAP5912
 221  * cpu_is_omap1621():   True for OMAP1621
 222  * cpu_is_omap1710():   True for OMAP1710
 223  * cpu_is_omap2420():   True for OMAP2420
 224  * cpu_is_omap2422():   True for OMAP2422
 225  * cpu_is_omap2423():   True for OMAP2423
 226  * cpu_is_omap2430():   True for OMAP2430
 227  * cpu_is_omap3430():   True for OMAP3430
 228  * cpu_is_omap4430():   True for OMAP4430
 229  * cpu_is_omap3505():   True for OMAP3505
 230  * cpu_is_omap3517():   True for OMAP3517
 231  */
 232 #define GET_OMAP_TYPE   ((omap_rev() >> 16) & 0xffff)
 233
 234 #define IS_OMAP_TYPE(type, id)                          \
 235 static inline int is_omap ##type (void)                 \
 236 {                                                       \
 237         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 238 }
 239
 240 IS_OMAP_TYPE(310, 0x0310)
 241 IS_OMAP_TYPE(730, 0x0730)
 242 IS_OMAP_TYPE(850, 0x0850)
 243 IS_OMAP_TYPE(1510, 0x1510)
 244 IS_OMAP_TYPE(1610, 0x1610)
 245 IS_OMAP_TYPE(1611, 0x1611)
 246 IS_OMAP_TYPE(5912, 0x1611)
 247 IS_OMAP_TYPE(1621, 0x1621)
 248 IS_OMAP_TYPE(1710, 0x1710)
 249 IS_OMAP_TYPE(2420, 0x2420)
 250 IS_OMAP_TYPE(2422, 0x2422)
 251 IS_OMAP_TYPE(2423, 0x2423)
 252 IS_OMAP_TYPE(2430, 0x2430)
 253 IS_OMAP_TYPE(3430, 0x3430)
 254 IS_OMAP_TYPE(3505, 0x3505)
 255 IS_OMAP_TYPE(3517, 0x3517)
 256
 257 #define cpu_is_omap310()                0
 258 #define cpu_is_omap730()                0
 259 #define cpu_is_omap850()                0
 260 #define cpu_is_omap1510()               0
 261 #define cpu_is_omap1610()               0
 262 #define cpu_is_omap5912()               0
 263 #define cpu_is_omap1611()               0
 264 #define cpu_is_omap1621()               0
 265 #define cpu_is_omap1710()               0
 266 #define cpu_is_omap2420()               0
 267 #define cpu_is_omap2422()               0
 268 #define cpu_is_omap2423()               0
 269 #define cpu_is_omap2430()               0
 270 #define cpu_is_omap3503()               0
 271 #define cpu_is_omap3515()               0
 272 #define cpu_is_omap3525()               0
 273 #define cpu_is_omap3530()               0
 274 #define cpu_is_omap3505()               0
 275 #define cpu_is_omap3517()               0
 276 #define cpu_is_omap3430()               0
 277 #define cpu_is_omap4430()               0
 278 #define cpu_is_omap3630()               0
 279
 280 /*
 281  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 282  * between 730 vs 850, 330 vs. 1510 and 1611B/5912 vs. 1710.
 283  */
 284
 285 #if defined(CONFIG_ARCH_OMAP730)
 286 # undef  cpu_is_omap730
 287 # define cpu_is_omap730()               is_omap730()
 288 #endif
 289
 290 #if defined(CONFIG_ARCH_OMAP850)
 291 # undef  cpu_is_omap850
 292 # define cpu_is_omap850()               is_omap850()
 293 #endif
 294
 295 #if defined(CONFIG_ARCH_OMAP15XX)
 296 # undef  cpu_is_omap310
 297 # undef  cpu_is_omap1510
 298 # define cpu_is_omap310()               is_omap310()
 299 # define cpu_is_omap1510()              is_omap1510()
 300 #endif
 301
 302 #if defined(CONFIG_ARCH_OMAP16XX)
 303 # undef  cpu_is_omap1610
 304 # undef  cpu_is_omap1611
 305 # undef  cpu_is_omap5912
 306 # undef  cpu_is_omap1621
 307 # undef  cpu_is_omap1710
 308 # define cpu_is_omap1610()              is_omap1610()
 309 # define cpu_is_omap1611()              is_omap1611()
 310 # define cpu_is_omap5912()              is_omap5912()
 311 # define cpu_is_omap1621()              is_omap1621()
 312 # define cpu_is_omap1710()              is_omap1710()
 313 #endif
 314
 315 #if defined(CONFIG_ARCH_OMAP2)
 316 # undef  cpu_is_omap2420
 317 # undef  cpu_is_omap2422
 318 # undef  cpu_is_omap2423
 319 # undef  cpu_is_omap2430
 320 # define cpu_is_omap2420()              is_omap2420()
 321 # define cpu_is_omap2422()              is_omap2422()
 322 # define cpu_is_omap2423()              is_omap2423()
 323 # define cpu_is_omap2430()              is_omap2430()
 324 #endif
 325
 326 #if defined(CONFIG_ARCH_OMAP3)
 327 # undef cpu_is_omap3430
 328 # undef cpu_is_omap3503
 329 # undef cpu_is_omap3515
 330 # undef cpu_is_omap3525
 331 # undef cpu_is_omap3530
 332 # undef cpu_is_omap3505
 333 # undef cpu_is_omap3517
 334 # define cpu_is_omap3430()              is_omap3430()
 335 # define cpu_is_omap3503()              (cpu_is_omap3430() &&           \
 336                                                 (!omap3_has_iva()) &&   \
 337                                                 (!omap3_has_sgx()))
 338 # define cpu_is_omap3515()              (cpu_is_omap3430() &&           \
 339                                                 (!omap3_has_iva()) &&   \
 340                                                 (omap3_has_sgx()))
 341 # define cpu_is_omap3525()              (cpu_is_omap3430() &&           \
 342                                                 (!omap3_has_sgx()) &&   \
 343                                                 (omap3_has_iva()))
 344 # define cpu_is_omap3530()              (cpu_is_omap3430())
 345 # define cpu_is_omap3505()              is_omap3505()
 346 # define cpu_is_omap3517()              is_omap3517()
 347 # undef cpu_is_omap3630
 348 # define cpu_is_omap3630()              is_omap363x()
 349 #endif
 350
 351 # if defined(CONFIG_ARCH_OMAP4)
 352 # undef cpu_is_omap44xx
 353 # undef cpu_is_omap443x
 354 # define cpu_is_omap44xx()              is_omap44xx()
 355 # define cpu_is_omap443x()              is_omap443x()
 356 # endif
 357
 358 /* Macros to detect if we have OMAP1 or OMAP2 */
 359 #define cpu_class_is_omap1()    (cpu_is_omap7xx() || cpu_is_omap15xx() || \
 360                                 cpu_is_omap16xx())
 361 #define cpu_class_is_omap2()    (cpu_is_omap24xx() || cpu_is_omap34xx() || \
 362                                 cpu_is_omap44xx())
 363
 364 /* Various silicon revisions for omap2 */
 365 #define OMAP242X_CLASS          0x24200024
 366 #define OMAP2420_REV_ES1_0      0x24200024
 367 #define OMAP2420_REV_ES2_0      0x24201024
 368
 369 #define OMAP243X_CLASS          0x24300024
 370 #define OMAP2430_REV_ES1_0      0x24300024
 371
 372 #define OMAP343X_CLASS          0x34300034
 373 #define OMAP3430_REV_ES1_0      0x34300034
 374 #define OMAP3430_REV_ES2_0      0x34301034
 375 #define OMAP3430_REV_ES2_1      0x34302034
 376 #define OMAP3430_REV_ES3_0      0x34303034
 377 #define OMAP3430_REV_ES3_1      0x34304034
 378 #define OMAP3430_REV_ES3_1_2    0x34305034
 379
 380 #define OMAP3630_REV_ES1_0      0x36300034
 381 #define OMAP3630_REV_ES1_1      0x36300134
 382 #define OMAP3630_REV_ES1_2      0x36300234
 383
 384 #define OMAP35XX_CLASS          0x35000034
 385 #define OMAP3503_REV(v)         (OMAP35XX_CLASS | (0x3503 << 16) | (v << 8))
 386 #define OMAP3515_REV(v)         (OMAP35XX_CLASS | (0x3515 << 16) | (v << 8))
 387 #define OMAP3525_REV(v)         (OMAP35XX_CLASS | (0x3525 << 16) | (v << 8))
 388 #define OMAP3530_REV(v)         (OMAP35XX_CLASS | (0x3530 << 16) | (v << 8))
 389 #define OMAP3505_REV(v)         (OMAP35XX_CLASS | (0x3505 << 16) | (v << 8))
 390 #define OMAP3517_REV(v)         (OMAP35XX_CLASS | (0x3517 << 16) | (v << 8))
 391
 392 #define OMAP443X_CLASS          0x44300044
 393 #define OMAP4430_REV_ES1_0      0x44300044
 394
 395 /*
 396  * omap_chip bits
 397  *
 398  * CHIP_IS_OMAP{2420,2430,3430} indicate that a particular structure is
 399  * valid on all chips of that type.  CHIP_IS_OMAP3430ES{1,2} indicates
 400  * something that is only valid on that particular ES revision.
 401  *
 402  * These bits may be ORed together to indicate structures that are
 403  * available on multiple chip types.
 404  *
 405  * To test whether a particular structure matches the current OMAP chip type,
 406  * use omap_chip_is().
 407  *
 408  */
 409 #define CHIP_IS_OMAP2420                (1 << 0)
 410 #define CHIP_IS_OMAP2430                (1 << 1)
 411 #define CHIP_IS_OMAP3430                (1 << 2)
 412 #define CHIP_IS_OMAP3430ES1             (1 << 3)
 413 #define CHIP_IS_OMAP3430ES2             (1 << 4)
 414 #define CHIP_IS_OMAP3430ES3_0           (1 << 5)
 415 #define CHIP_IS_OMAP3430ES3_1           (1 << 6)
 416 #define CHIP_IS_OMAP3630ES1             (1 << 7)
 417 #define CHIP_IS_OMAP4430ES1             (1 << 8)
 418 #define CHIP_IS_OMAP3630ES1_1           (1 << 9)
 419 #define CHIP_IS_OMAP3630ES1_2           (1 << 10)
 420
 421 #define CHIP_IS_OMAP24XX                (CHIP_IS_OMAP2420 | CHIP_IS_OMAP2430)
 422
 423 #define CHIP_IS_OMAP4430                (CHIP_IS_OMAP4430ES1)
 424
 425 /*
 426  * "GE" here represents "greater than or equal to" in terms of ES
 427  * levels.  So CHIP_GE_OMAP3430ES2 is intended to match all OMAP3430
 428  * chips at ES2 and beyond, but not, for example, any OMAP lines after
 429  * OMAP3.
 430  */
 431 #define CHIP_GE_OMAP3430ES2             (CHIP_IS_OMAP3430ES2 | \
 432                                          CHIP_IS_OMAP3430ES3_0 | \
 433                                          CHIP_GE_OMAP3430ES3_1)
 434 #define CHIP_GE_OMAP3430ES3_1           (CHIP_IS_OMAP3430ES3_1 | \
 435                                          CHIP_IS_OMAP3630ES1 | \
 436                                          CHIP_GE_OMAP3630ES1_1)
 437 #define CHIP_GE_OMAP3630ES1_1           (CHIP_IS_OMAP3630ES1_1 | \
 438                                          CHIP_IS_OMAP3630ES1_2)
 439
 440 int omap_chip_is(struct omap_chip_id oci);
 441 void omap2_check_revision(void);
 442
 443 /*
 444  * Runtime detection of OMAP3 features
 445  */
 446 extern u32 omap3_features;
 447
 448 #define OMAP3_HAS_L2CACHE               BIT(0)
 449 #define OMAP3_HAS_IVA                   BIT(1)
 450 #define OMAP3_HAS_SGX                   BIT(2)
 451 #define OMAP3_HAS_NEON                  BIT(3)
 452 #define OMAP3_HAS_ISP                   BIT(4)
 453 #define OMAP3_HAS_192MHZ_CLK            BIT(5)
 454 #define OMAP3_HAS_IO_WAKEUP             BIT(6)
 455
 456 #define OMAP3_HAS_FEATURE(feat,flag)                    \
 457 static inline unsigned int omap3_has_ ##feat(void)      \
 458 {                                                       \
 459         return (omap3_features & OMAP3_HAS_ ##flag);    \
 460 }                                                       \
 461
 462 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
 463 OMAP3_HAS_FEATURE(sgx, SGX)
 464 OMAP3_HAS_FEATURE(iva, IVA)
 465 OMAP3_HAS_FEATURE(neon, NEON)
 466 OMAP3_HAS_FEATURE(isp, ISP)
 467 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
 468 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
 469
 470 #endif