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 * Test if multicore OMAP support is needed 43 */ 44 #undef MULTI_OMAP2 45 #undef OMAP_NAME 46 47 #ifdef CONFIG_ARCH_MULTIPLATFORM 48 #define MULTI_OMAP2 49 #endif 50 #ifdef CONFIG_SOC_OMAP2420 51 # ifdef OMAP_NAME 52 # undef MULTI_OMAP2 53 # define MULTI_OMAP2 54 # else 55 # define OMAP_NAME omap2420 56 # endif 57 #endif 58 #ifdef CONFIG_SOC_OMAP2430 59 # ifdef OMAP_NAME 60 # undef MULTI_OMAP2 61 # define MULTI_OMAP2 62 # else 63 # define OMAP_NAME omap2430 64 # endif 65 #endif 66 #ifdef CONFIG_ARCH_OMAP3 67 # ifdef OMAP_NAME 68 # undef MULTI_OMAP2 69 # define MULTI_OMAP2 70 # else 71 # define OMAP_NAME omap3 72 # endif 73 #endif 74 #ifdef CONFIG_ARCH_OMAP4 75 # ifdef OMAP_NAME 76 # undef MULTI_OMAP2 77 # define MULTI_OMAP2 78 # else 79 # define OMAP_NAME omap4 80 # endif 81 #endif 82 83 #ifdef CONFIG_SOC_OMAP5 84 # ifdef OMAP_NAME 85 # undef MULTI_OMAP2 86 # define MULTI_OMAP2 87 # else 88 # define OMAP_NAME omap5 89 # endif 90 #endif 91 92 #ifdef CONFIG_SOC_AM33XX 93 # ifdef OMAP_NAME 94 # undef MULTI_OMAP2 95 # define MULTI_OMAP2 96 # else 97 # define OMAP_NAME am33xx 98 # endif 99 #endif 100 101 #ifdef CONFIG_SOC_AM43XX 102 # ifdef OMAP_NAME 103 # undef MULTI_OMAP2 104 # define MULTI_OMAP2 105 # else 106 # define OMAP_NAME am43xx 107 # endif 108 #endif 109 110 #ifdef CONFIG_SOC_DRA7XX 111 # ifdef OMAP_NAME 112 # undef MULTI_OMAP2 113 # define MULTI_OMAP2 114 # else 115 # define OMAP_NAME DRA7XX 116 # endif 117 #endif 118 119 /* 120 * Omap device type i.e. EMU/HS/TST/GP/BAD 121 */ 122 #define OMAP2_DEVICE_TYPE_TEST 0 123 #define OMAP2_DEVICE_TYPE_EMU 1 124 #define OMAP2_DEVICE_TYPE_SEC 2 125 #define OMAP2_DEVICE_TYPE_GP 3 126 #define OMAP2_DEVICE_TYPE_BAD 4 127 128 int omap_type(void); 129 130 /* 131 * omap_rev bits: 132 * CPU id bits (0730, 1510, 1710, 2422...) [31:16] 133 * CPU revision (See _REV_ defined in cpu.h) [15:08] 134 * CPU class bits (15xx, 16xx, 24xx, 34xx...) [07:00] 135 */ 136 unsigned int omap_rev(void); 137 138 static inline int soc_is_omap(void) 139 { 140 return omap_rev() != 0; 141 } 142 143 /* 144 * Get the CPU revision for OMAP devices 145 */ 146 #define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff) 147 148 /* 149 * Macros to group OMAP into cpu classes. 150 * These can be used in most places. 151 * cpu_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430 152 * cpu_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423 153 * cpu_is_omap243x(): True for OMAP2430 154 * cpu_is_omap343x(): True for OMAP3430 155 * cpu_is_omap443x(): True for OMAP4430 156 * cpu_is_omap446x(): True for OMAP4460 157 * cpu_is_omap447x(): True for OMAP4470 158 * soc_is_omap543x(): True for OMAP5430, OMAP5432 159 */ 160 #define GET_OMAP_CLASS (omap_rev() & 0xff) 161 162 #define IS_OMAP_CLASS(class, id) \ 163 static inline int is_omap ##class (void) \ 164 { \ 165 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \ 166 } 167 168 #define GET_AM_CLASS ((omap_rev() >> 24) & 0xff) 169 170 #define IS_AM_CLASS(class, id) \ 171 static inline int is_am ##class (void) \ 172 { \ 173 return (GET_AM_CLASS == (id)) ? 1 : 0; \ 174 } 175 176 #define GET_TI_CLASS ((omap_rev() >> 24) & 0xff) 177 178 #define IS_TI_CLASS(class, id) \ 179 static inline int is_ti ##class (void) \ 180 { \ 181 return (GET_TI_CLASS == (id)) ? 1 : 0; \ 182 } 183 184 #define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff) 185 186 #define IS_OMAP_SUBCLASS(subclass, id) \ 187 static inline int is_omap ##subclass (void) \ 188 { \ 189 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 190 } 191 192 #define IS_TI_SUBCLASS(subclass, id) \ 193 static inline int is_ti ##subclass (void) \ 194 { \ 195 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 196 } 197 198 #define IS_AM_SUBCLASS(subclass, id) \ 199 static inline int is_am ##subclass (void) \ 200 { \ 201 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 202 } 203 204 IS_OMAP_CLASS(24xx, 0x24) 205 IS_OMAP_CLASS(34xx, 0x34) 206 IS_OMAP_CLASS(44xx, 0x44) 207 IS_AM_CLASS(35xx, 0x35) 208 IS_OMAP_CLASS(54xx, 0x54) 209 IS_AM_CLASS(33xx, 0x33) 210 IS_AM_CLASS(43xx, 0x43) 211 212 IS_TI_CLASS(81xx, 0x81) 213 214 IS_OMAP_SUBCLASS(242x, 0x242) 215 IS_OMAP_SUBCLASS(243x, 0x243) 216 IS_OMAP_SUBCLASS(343x, 0x343) 217 IS_OMAP_SUBCLASS(363x, 0x363) 218 IS_OMAP_SUBCLASS(443x, 0x443) 219 IS_OMAP_SUBCLASS(446x, 0x446) 220 IS_OMAP_SUBCLASS(447x, 0x447) 221 IS_OMAP_SUBCLASS(543x, 0x543) 222 223 IS_TI_SUBCLASS(816x, 0x816) 224 IS_TI_SUBCLASS(814x, 0x814) 225 IS_AM_SUBCLASS(335x, 0x335) 226 IS_AM_SUBCLASS(437x, 0x437) 227 228 #define cpu_is_omap24xx() 0 229 #define cpu_is_omap242x() 0 230 #define cpu_is_omap243x() 0 231 #define cpu_is_omap34xx() 0 232 #define cpu_is_omap343x() 0 233 #define cpu_is_ti81xx() 0 234 #define cpu_is_ti816x() 0 235 #define cpu_is_ti814x() 0 236 #define soc_is_am35xx() 0 237 #define soc_is_am33xx() 0 238 #define soc_is_am335x() 0 239 #define soc_is_am43xx() 0 240 #define soc_is_am437x() 0 241 #define cpu_is_omap44xx() 0 242 #define cpu_is_omap443x() 0 243 #define cpu_is_omap446x() 0 244 #define cpu_is_omap447x() 0 245 #define soc_is_omap54xx() 0 246 #define soc_is_omap543x() 0 247 #define soc_is_dra7xx() 0 248 #define soc_is_dra74x() 0 249 #define soc_is_dra72x() 0 250 251 #if defined(MULTI_OMAP2) 252 # if defined(CONFIG_ARCH_OMAP2) 253 # undef cpu_is_omap24xx 254 # define cpu_is_omap24xx() is_omap24xx() 255 # endif 256 # if defined (CONFIG_SOC_OMAP2420) 257 # undef cpu_is_omap242x 258 # define cpu_is_omap242x() is_omap242x() 259 # endif 260 # if defined (CONFIG_SOC_OMAP2430) 261 # undef cpu_is_omap243x 262 # define cpu_is_omap243x() is_omap243x() 263 # endif 264 # if defined(CONFIG_ARCH_OMAP3) 265 # undef cpu_is_omap34xx 266 # undef cpu_is_omap343x 267 # define cpu_is_omap34xx() is_omap34xx() 268 # define cpu_is_omap343x() is_omap343x() 269 # endif 270 #else 271 # if defined(CONFIG_ARCH_OMAP2) 272 # undef cpu_is_omap24xx 273 # define cpu_is_omap24xx() 1 274 # endif 275 # if defined(CONFIG_SOC_OMAP2420) 276 # undef cpu_is_omap242x 277 # define cpu_is_omap242x() 1 278 # endif 279 # if defined(CONFIG_SOC_OMAP2430) 280 # undef cpu_is_omap243x 281 # define cpu_is_omap243x() 1 282 # endif 283 # if defined(CONFIG_ARCH_OMAP3) 284 # undef cpu_is_omap34xx 285 # define cpu_is_omap34xx() 1 286 # endif 287 # if defined(CONFIG_SOC_OMAP3430) 288 # undef cpu_is_omap343x 289 # define cpu_is_omap343x() 1 290 # endif 291 #endif 292 293 /* 294 * Macros to detect individual cpu types. 295 * These are only rarely needed. 296 * cpu_is_omap2420(): True for OMAP2420 297 * cpu_is_omap2422(): True for OMAP2422 298 * cpu_is_omap2423(): True for OMAP2423 299 * cpu_is_omap2430(): True for OMAP2430 300 * cpu_is_omap3430(): True for OMAP3430 301 */ 302 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff) 303 304 #define IS_OMAP_TYPE(type, id) \ 305 static inline int is_omap ##type (void) \ 306 { \ 307 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ 308 } 309 310 IS_OMAP_TYPE(2420, 0x2420) 311 IS_OMAP_TYPE(2422, 0x2422) 312 IS_OMAP_TYPE(2423, 0x2423) 313 IS_OMAP_TYPE(2430, 0x2430) 314 IS_OMAP_TYPE(3430, 0x3430) 315 316 #define cpu_is_omap2420() 0 317 #define cpu_is_omap2422() 0 318 #define cpu_is_omap2423() 0 319 #define cpu_is_omap2430() 0 320 #define cpu_is_omap3430() 0 321 #define cpu_is_omap3630() 0 322 #define soc_is_omap5430() 0 323 324 /* These are needed for the common code */ 325 #ifdef CONFIG_ARCH_OMAP2PLUS 326 #define cpu_is_omap7xx() 0 327 #define cpu_is_omap15xx() 0 328 #define cpu_is_omap16xx() 0 329 #define cpu_is_omap1510() 0 330 #define cpu_is_omap1610() 0 331 #define cpu_is_omap1611() 0 332 #define cpu_is_omap1621() 0 333 #define cpu_is_omap1710() 0 334 #define cpu_class_is_omap1() 0 335 #define cpu_class_is_omap2() 1 336 #endif 337 338 #if defined(CONFIG_ARCH_OMAP2) 339 # undef cpu_is_omap2420 340 # undef cpu_is_omap2422 341 # undef cpu_is_omap2423 342 # undef cpu_is_omap2430 343 # define cpu_is_omap2420() is_omap2420() 344 # define cpu_is_omap2422() is_omap2422() 345 # define cpu_is_omap2423() is_omap2423() 346 # define cpu_is_omap2430() is_omap2430() 347 #endif 348 349 #if defined(CONFIG_ARCH_OMAP3) 350 # undef cpu_is_omap3430 351 # undef cpu_is_ti81xx 352 # undef cpu_is_ti816x 353 # undef cpu_is_ti814x 354 # undef soc_is_am35xx 355 # define cpu_is_omap3430() is_omap3430() 356 # undef cpu_is_omap3630 357 # define cpu_is_omap3630() is_omap363x() 358 # define cpu_is_ti81xx() is_ti81xx() 359 # define cpu_is_ti816x() is_ti816x() 360 # define cpu_is_ti814x() is_ti814x() 361 # define soc_is_am35xx() is_am35xx() 362 #endif 363 364 # if defined(CONFIG_SOC_AM33XX) 365 # undef soc_is_am33xx 366 # undef soc_is_am335x 367 # define soc_is_am33xx() is_am33xx() 368 # define soc_is_am335x() is_am335x() 369 #endif 370 371 #ifdef CONFIG_SOC_AM43XX 372 # undef soc_is_am43xx 373 # undef soc_is_am437x 374 # define soc_is_am43xx() is_am43xx() 375 # define soc_is_am437x() is_am437x() 376 #endif 377 378 # if defined(CONFIG_ARCH_OMAP4) 379 # undef cpu_is_omap44xx 380 # undef cpu_is_omap443x 381 # undef cpu_is_omap446x 382 # undef cpu_is_omap447x 383 # define cpu_is_omap44xx() is_omap44xx() 384 # define cpu_is_omap443x() is_omap443x() 385 # define cpu_is_omap446x() is_omap446x() 386 # define cpu_is_omap447x() is_omap447x() 387 # endif 388 389 # if defined(CONFIG_SOC_OMAP5) 390 # undef soc_is_omap54xx 391 # undef soc_is_omap543x 392 # define soc_is_omap54xx() is_omap54xx() 393 # define soc_is_omap543x() is_omap543x() 394 #endif 395 396 #if defined(CONFIG_SOC_DRA7XX) 397 #undef soc_is_dra7xx 398 #undef soc_is_dra74x 399 #undef soc_is_dra72x 400 #define soc_is_dra7xx() (of_machine_is_compatible("ti,dra7")) 401 #define soc_is_dra74x() (of_machine_is_compatible("ti,dra74")) 402 #define soc_is_dra72x() (of_machine_is_compatible("ti,dra72")) 403 #endif 404 405 /* Various silicon revisions for omap2 */ 406 #define OMAP242X_CLASS 0x24200024 407 #define OMAP2420_REV_ES1_0 OMAP242X_CLASS 408 #define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8)) 409 410 #define OMAP243X_CLASS 0x24300024 411 #define OMAP2430_REV_ES1_0 OMAP243X_CLASS 412 413 #define OMAP343X_CLASS 0x34300034 414 #define OMAP3430_REV_ES1_0 OMAP343X_CLASS 415 #define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8)) 416 #define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8)) 417 #define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8)) 418 #define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8)) 419 #define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8)) 420 421 #define OMAP363X_CLASS 0x36300034 422 #define OMAP3630_REV_ES1_0 OMAP363X_CLASS 423 #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8)) 424 #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8)) 425 426 #define TI816X_CLASS 0x81600081 427 #define TI8168_REV_ES1_0 TI816X_CLASS 428 #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8)) 429 #define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8)) 430 #define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8)) 431 432 #define TI814X_CLASS 0x81400081 433 #define TI8148_REV_ES1_0 TI814X_CLASS 434 #define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8)) 435 #define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8)) 436 437 #define AM35XX_CLASS 0x35170034 438 #define AM35XX_REV_ES1_0 AM35XX_CLASS 439 #define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8)) 440 441 #define AM335X_CLASS 0x33500033 442 #define AM335X_REV_ES1_0 AM335X_CLASS 443 #define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8)) 444 #define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8)) 445 446 #define AM437X_CLASS 0x43700000 447 #define AM437X_REV_ES1_0 (AM437X_CLASS | (0x10 << 8)) 448 #define AM437X_REV_ES1_1 (AM437X_CLASS | (0x11 << 8)) 449 #define AM437X_REV_ES1_2 (AM437X_CLASS | (0x12 << 8)) 450 451 #define OMAP443X_CLASS 0x44300044 452 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8)) 453 #define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8)) 454 #define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8)) 455 #define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8)) 456 #define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8)) 457 458 #define OMAP446X_CLASS 0x44600044 459 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8)) 460 #define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8)) 461 462 #define OMAP447X_CLASS 0x44700044 463 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8)) 464 465 #define OMAP54XX_CLASS 0x54000054 466 #define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8)) 467 #define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8)) 468 469 #define DRA7XX_CLASS 0x07000000 470 #define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8)) 471 #define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8)) 472 #define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8)) 473 474 void omap2xxx_check_revision(void); 475 void omap3xxx_check_revision(void); 476 void omap4xxx_check_revision(void); 477 void omap5xxx_check_revision(void); 478 void dra7xxx_check_revision(void); 479 void omap3xxx_check_features(void); 480 void ti81xx_check_features(void); 481 void am33xx_check_features(void); 482 void omap4xxx_check_features(void); 483 484 /* 485 * Runtime detection of OMAP3 features 486 * 487 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip 488 * family have OS-level control over the I/O chain clock. This is 489 * to avoid a window during which wakeups could potentially be lost 490 * during powerdomain transitions. If this bit is set, it 491 * indicates that the chip does support OS-level control of this 492 * feature. 493 */ 494 extern u32 omap_features; 495 496 #define OMAP3_HAS_L2CACHE BIT(0) 497 #define OMAP3_HAS_IVA BIT(1) 498 #define OMAP3_HAS_SGX BIT(2) 499 #define OMAP3_HAS_NEON BIT(3) 500 #define OMAP3_HAS_ISP BIT(4) 501 #define OMAP3_HAS_192MHZ_CLK BIT(5) 502 #define OMAP3_HAS_IO_WAKEUP BIT(6) 503 #define OMAP3_HAS_SDRC BIT(7) 504 #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8) 505 #define OMAP4_HAS_PERF_SILICON BIT(9) 506 507 508 #define OMAP3_HAS_FEATURE(feat,flag) \ 509 static inline unsigned int omap3_has_ ##feat(void) \ 510 { \ 511 return omap_features & OMAP3_HAS_ ##flag; \ 512 } \ 513 514 OMAP3_HAS_FEATURE(l2cache, L2CACHE) 515 OMAP3_HAS_FEATURE(sgx, SGX) 516 OMAP3_HAS_FEATURE(iva, IVA) 517 OMAP3_HAS_FEATURE(neon, NEON) 518 OMAP3_HAS_FEATURE(isp, ISP) 519 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK) 520 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP) 521 OMAP3_HAS_FEATURE(sdrc, SDRC) 522 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL) 523 524 /* 525 * Runtime detection of OMAP4 features 526 */ 527 #define OMAP4_HAS_FEATURE(feat, flag) \ 528 static inline unsigned int omap4_has_ ##feat(void) \ 529 { \ 530 return omap_features & OMAP4_HAS_ ##flag; \ 531 } \ 532 533 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON) 534 535 /* 536 * We need to make sure omap initcalls don't run when 537 * multiplatform kernels are booted on other SoCs. 538 */ 539 #define omap_initcall(level, fn) \ 540 static int __init __used __##fn(void) \ 541 { \ 542 if (!soc_is_omap()) \ 543 return 0; \ 544 return fn(); \ 545 } \ 546 level(__##fn); 547 548 #define omap_early_initcall(fn) omap_initcall(early_initcall, fn) 549 #define omap_core_initcall(fn) omap_initcall(core_initcall, fn) 550 #define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn) 551 #define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn) 552 #define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn) 553 #define omap_device_initcall(fn) omap_initcall(device_initcall, fn) 554 #define omap_late_initcall(fn) omap_initcall(late_initcall, fn) 555 #define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn) 556 557 #endif /* __ASSEMBLY__ */ 558 559