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 #ifdef CONFIG_SOC_AM43XX 100 # ifdef OMAP_NAME 101 # undef MULTI_OMAP2 102 # define MULTI_OMAP2 103 # else 104 # define OMAP_NAME am43xx 105 # endif 106 #endif 107 108 /* 109 * Omap device type i.e. EMU/HS/TST/GP/BAD 110 */ 111 #define OMAP2_DEVICE_TYPE_TEST 0 112 #define OMAP2_DEVICE_TYPE_EMU 1 113 #define OMAP2_DEVICE_TYPE_SEC 2 114 #define OMAP2_DEVICE_TYPE_GP 3 115 #define OMAP2_DEVICE_TYPE_BAD 4 116 117 int omap_type(void); 118 119 /* 120 * omap_rev bits: 121 * CPU id bits (0730, 1510, 1710, 2422...) [31:16] 122 * CPU revision (See _REV_ defined in cpu.h) [15:08] 123 * CPU class bits (15xx, 16xx, 24xx, 34xx...) [07:00] 124 */ 125 unsigned int omap_rev(void); 126 127 static inline int soc_is_omap(void) 128 { 129 return omap_rev() != 0; 130 } 131 132 /* 133 * Get the CPU revision for OMAP devices 134 */ 135 #define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff) 136 137 /* 138 * Macros to group OMAP into cpu classes. 139 * These can be used in most places. 140 * cpu_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430 141 * cpu_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423 142 * cpu_is_omap243x(): True for OMAP2430 143 * cpu_is_omap343x(): True for OMAP3430 144 * cpu_is_omap443x(): True for OMAP4430 145 * cpu_is_omap446x(): True for OMAP4460 146 * cpu_is_omap447x(): True for OMAP4470 147 * soc_is_omap543x(): True for OMAP5430, OMAP5432 148 */ 149 #define GET_OMAP_CLASS (omap_rev() & 0xff) 150 151 #define IS_OMAP_CLASS(class, id) \ 152 static inline int is_omap ##class (void) \ 153 { \ 154 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \ 155 } 156 157 #define GET_AM_CLASS ((omap_rev() >> 24) & 0xff) 158 159 #define IS_AM_CLASS(class, id) \ 160 static inline int is_am ##class (void) \ 161 { \ 162 return (GET_AM_CLASS == (id)) ? 1 : 0; \ 163 } 164 165 #define GET_TI_CLASS ((omap_rev() >> 24) & 0xff) 166 167 #define IS_TI_CLASS(class, id) \ 168 static inline int is_ti ##class (void) \ 169 { \ 170 return (GET_TI_CLASS == (id)) ? 1 : 0; \ 171 } 172 173 #define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff) 174 175 #define IS_OMAP_SUBCLASS(subclass, id) \ 176 static inline int is_omap ##subclass (void) \ 177 { \ 178 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 179 } 180 181 #define IS_TI_SUBCLASS(subclass, id) \ 182 static inline int is_ti ##subclass (void) \ 183 { \ 184 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 185 } 186 187 #define IS_AM_SUBCLASS(subclass, id) \ 188 static inline int is_am ##subclass (void) \ 189 { \ 190 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 191 } 192 193 IS_OMAP_CLASS(24xx, 0x24) 194 IS_OMAP_CLASS(34xx, 0x34) 195 IS_OMAP_CLASS(44xx, 0x44) 196 IS_AM_CLASS(35xx, 0x35) 197 IS_OMAP_CLASS(54xx, 0x54) 198 IS_AM_CLASS(33xx, 0x33) 199 IS_AM_CLASS(43xx, 0x43) 200 201 IS_TI_CLASS(81xx, 0x81) 202 203 IS_OMAP_SUBCLASS(242x, 0x242) 204 IS_OMAP_SUBCLASS(243x, 0x243) 205 IS_OMAP_SUBCLASS(343x, 0x343) 206 IS_OMAP_SUBCLASS(363x, 0x363) 207 IS_OMAP_SUBCLASS(443x, 0x443) 208 IS_OMAP_SUBCLASS(446x, 0x446) 209 IS_OMAP_SUBCLASS(447x, 0x447) 210 IS_OMAP_SUBCLASS(543x, 0x543) 211 212 IS_TI_SUBCLASS(816x, 0x816) 213 IS_TI_SUBCLASS(814x, 0x814) 214 IS_AM_SUBCLASS(335x, 0x335) 215 IS_AM_SUBCLASS(437x, 0x437) 216 217 #define cpu_is_omap24xx() 0 218 #define cpu_is_omap242x() 0 219 #define cpu_is_omap243x() 0 220 #define cpu_is_omap34xx() 0 221 #define cpu_is_omap343x() 0 222 #define cpu_is_ti81xx() 0 223 #define cpu_is_ti816x() 0 224 #define cpu_is_ti814x() 0 225 #define soc_is_am35xx() 0 226 #define soc_is_am33xx() 0 227 #define soc_is_am335x() 0 228 #define soc_is_am43xx() 0 229 #define soc_is_am437x() 0 230 #define cpu_is_omap44xx() 0 231 #define cpu_is_omap443x() 0 232 #define cpu_is_omap446x() 0 233 #define cpu_is_omap447x() 0 234 #define soc_is_omap54xx() 0 235 #define soc_is_omap543x() 0 236 237 #if defined(MULTI_OMAP2) 238 # if defined(CONFIG_ARCH_OMAP2) 239 # undef cpu_is_omap24xx 240 # define cpu_is_omap24xx() is_omap24xx() 241 # endif 242 # if defined (CONFIG_SOC_OMAP2420) 243 # undef cpu_is_omap242x 244 # define cpu_is_omap242x() is_omap242x() 245 # endif 246 # if defined (CONFIG_SOC_OMAP2430) 247 # undef cpu_is_omap243x 248 # define cpu_is_omap243x() is_omap243x() 249 # endif 250 # if defined(CONFIG_ARCH_OMAP3) 251 # undef cpu_is_omap34xx 252 # undef cpu_is_omap343x 253 # define cpu_is_omap34xx() is_omap34xx() 254 # define cpu_is_omap343x() is_omap343x() 255 # endif 256 #else 257 # if defined(CONFIG_ARCH_OMAP2) 258 # undef cpu_is_omap24xx 259 # define cpu_is_omap24xx() 1 260 # endif 261 # if defined(CONFIG_SOC_OMAP2420) 262 # undef cpu_is_omap242x 263 # define cpu_is_omap242x() 1 264 # endif 265 # if defined(CONFIG_SOC_OMAP2430) 266 # undef cpu_is_omap243x 267 # define cpu_is_omap243x() 1 268 # endif 269 # if defined(CONFIG_ARCH_OMAP3) 270 # undef cpu_is_omap34xx 271 # define cpu_is_omap34xx() 1 272 # endif 273 # if defined(CONFIG_SOC_OMAP3430) 274 # undef cpu_is_omap343x 275 # define cpu_is_omap343x() 1 276 # endif 277 #endif 278 279 /* 280 * Macros to detect individual cpu types. 281 * These are only rarely needed. 282 * cpu_is_omap2420(): True for OMAP2420 283 * cpu_is_omap2422(): True for OMAP2422 284 * cpu_is_omap2423(): True for OMAP2423 285 * cpu_is_omap2430(): True for OMAP2430 286 * cpu_is_omap3430(): True for OMAP3430 287 */ 288 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff) 289 290 #define IS_OMAP_TYPE(type, id) \ 291 static inline int is_omap ##type (void) \ 292 { \ 293 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ 294 } 295 296 IS_OMAP_TYPE(2420, 0x2420) 297 IS_OMAP_TYPE(2422, 0x2422) 298 IS_OMAP_TYPE(2423, 0x2423) 299 IS_OMAP_TYPE(2430, 0x2430) 300 IS_OMAP_TYPE(3430, 0x3430) 301 302 #define cpu_is_omap2420() 0 303 #define cpu_is_omap2422() 0 304 #define cpu_is_omap2423() 0 305 #define cpu_is_omap2430() 0 306 #define cpu_is_omap3430() 0 307 #define cpu_is_omap3630() 0 308 #define soc_is_omap5430() 0 309 310 /* These are needed for the common code */ 311 #ifdef CONFIG_ARCH_OMAP2PLUS 312 #define cpu_is_omap7xx() 0 313 #define cpu_is_omap15xx() 0 314 #define cpu_is_omap16xx() 0 315 #define cpu_is_omap1510() 0 316 #define cpu_is_omap1610() 0 317 #define cpu_is_omap1611() 0 318 #define cpu_is_omap1621() 0 319 #define cpu_is_omap1710() 0 320 #define cpu_class_is_omap1() 0 321 #define cpu_class_is_omap2() 1 322 #endif 323 324 #if defined(CONFIG_ARCH_OMAP2) 325 # undef cpu_is_omap2420 326 # undef cpu_is_omap2422 327 # undef cpu_is_omap2423 328 # undef cpu_is_omap2430 329 # define cpu_is_omap2420() is_omap2420() 330 # define cpu_is_omap2422() is_omap2422() 331 # define cpu_is_omap2423() is_omap2423() 332 # define cpu_is_omap2430() is_omap2430() 333 #endif 334 335 #if defined(CONFIG_ARCH_OMAP3) 336 # undef cpu_is_omap3430 337 # undef cpu_is_ti81xx 338 # undef cpu_is_ti816x 339 # undef cpu_is_ti814x 340 # undef soc_is_am35xx 341 # define cpu_is_omap3430() is_omap3430() 342 # undef cpu_is_omap3630 343 # define cpu_is_omap3630() is_omap363x() 344 # define cpu_is_ti81xx() is_ti81xx() 345 # define cpu_is_ti816x() is_ti816x() 346 # define cpu_is_ti814x() is_ti814x() 347 # define soc_is_am35xx() is_am35xx() 348 #endif 349 350 # if defined(CONFIG_SOC_AM33XX) 351 # undef soc_is_am33xx 352 # undef soc_is_am335x 353 # define soc_is_am33xx() is_am33xx() 354 # define soc_is_am335x() is_am335x() 355 #endif 356 357 #ifdef CONFIG_SOC_AM43XX 358 # undef soc_is_am43xx 359 # undef soc_is_am437x 360 # define soc_is_am43xx() is_am43xx() 361 # define soc_is_am437x() is_am437x() 362 #endif 363 364 # if defined(CONFIG_ARCH_OMAP4) 365 # undef cpu_is_omap44xx 366 # undef cpu_is_omap443x 367 # undef cpu_is_omap446x 368 # undef cpu_is_omap447x 369 # define cpu_is_omap44xx() is_omap44xx() 370 # define cpu_is_omap443x() is_omap443x() 371 # define cpu_is_omap446x() is_omap446x() 372 # define cpu_is_omap447x() is_omap447x() 373 # endif 374 375 # if defined(CONFIG_SOC_OMAP5) 376 # undef soc_is_omap54xx 377 # undef soc_is_omap543x 378 # define soc_is_omap54xx() is_omap54xx() 379 # define soc_is_omap543x() is_omap543x() 380 #endif 381 382 /* Various silicon revisions for omap2 */ 383 #define OMAP242X_CLASS 0x24200024 384 #define OMAP2420_REV_ES1_0 OMAP242X_CLASS 385 #define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8)) 386 387 #define OMAP243X_CLASS 0x24300024 388 #define OMAP2430_REV_ES1_0 OMAP243X_CLASS 389 390 #define OMAP343X_CLASS 0x34300034 391 #define OMAP3430_REV_ES1_0 OMAP343X_CLASS 392 #define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8)) 393 #define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8)) 394 #define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8)) 395 #define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8)) 396 #define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8)) 397 398 #define OMAP363X_CLASS 0x36300034 399 #define OMAP3630_REV_ES1_0 OMAP363X_CLASS 400 #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8)) 401 #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8)) 402 403 #define TI816X_CLASS 0x81600034 404 #define TI8168_REV_ES1_0 TI816X_CLASS 405 #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8)) 406 #define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8)) 407 #define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8)) 408 409 #define TI814X_CLASS 0x81400034 410 #define TI8148_REV_ES1_0 TI814X_CLASS 411 #define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8)) 412 #define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8)) 413 414 #define AM35XX_CLASS 0x35170034 415 #define AM35XX_REV_ES1_0 AM35XX_CLASS 416 #define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8)) 417 418 #define AM335X_CLASS 0x33500033 419 #define AM335X_REV_ES1_0 AM335X_CLASS 420 #define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8)) 421 #define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8)) 422 423 #define AM437X_CLASS 0x43700000 424 #define AM437X_REV_ES1_0 AM437X_CLASS 425 426 #define OMAP443X_CLASS 0x44300044 427 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8)) 428 #define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8)) 429 #define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8)) 430 #define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8)) 431 #define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8)) 432 433 #define OMAP446X_CLASS 0x44600044 434 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8)) 435 #define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8)) 436 437 #define OMAP447X_CLASS 0x44700044 438 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8)) 439 440 #define OMAP54XX_CLASS 0x54000054 441 #define OMAP5430_REV_ES1_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8)) 442 #define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8)) 443 #define OMAP5432_REV_ES1_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8)) 444 #define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8)) 445 446 void omap2xxx_check_revision(void); 447 void omap3xxx_check_revision(void); 448 void omap4xxx_check_revision(void); 449 void omap5xxx_check_revision(void); 450 void omap3xxx_check_features(void); 451 void ti81xx_check_features(void); 452 void am33xx_check_features(void); 453 void omap4xxx_check_features(void); 454 455 /* 456 * Runtime detection of OMAP3 features 457 * 458 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip 459 * family have OS-level control over the I/O chain clock. This is 460 * to avoid a window during which wakeups could potentially be lost 461 * during powerdomain transitions. If this bit is set, it 462 * indicates that the chip does support OS-level control of this 463 * feature. 464 */ 465 extern u32 omap_features; 466 467 #define OMAP3_HAS_L2CACHE BIT(0) 468 #define OMAP3_HAS_IVA BIT(1) 469 #define OMAP3_HAS_SGX BIT(2) 470 #define OMAP3_HAS_NEON BIT(3) 471 #define OMAP3_HAS_ISP BIT(4) 472 #define OMAP3_HAS_192MHZ_CLK BIT(5) 473 #define OMAP3_HAS_IO_WAKEUP BIT(6) 474 #define OMAP3_HAS_SDRC BIT(7) 475 #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8) 476 #define OMAP4_HAS_PERF_SILICON BIT(9) 477 478 479 #define OMAP3_HAS_FEATURE(feat,flag) \ 480 static inline unsigned int omap3_has_ ##feat(void) \ 481 { \ 482 return omap_features & OMAP3_HAS_ ##flag; \ 483 } \ 484 485 OMAP3_HAS_FEATURE(l2cache, L2CACHE) 486 OMAP3_HAS_FEATURE(sgx, SGX) 487 OMAP3_HAS_FEATURE(iva, IVA) 488 OMAP3_HAS_FEATURE(neon, NEON) 489 OMAP3_HAS_FEATURE(isp, ISP) 490 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK) 491 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP) 492 OMAP3_HAS_FEATURE(sdrc, SDRC) 493 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL) 494 495 /* 496 * Runtime detection of OMAP4 features 497 */ 498 #define OMAP4_HAS_FEATURE(feat, flag) \ 499 static inline unsigned int omap4_has_ ##feat(void) \ 500 { \ 501 return omap_features & OMAP4_HAS_ ##flag; \ 502 } \ 503 504 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON) 505 506 /* 507 * We need to make sure omap initcalls don't run when 508 * multiplatform kernels are booted on other SoCs. 509 */ 510 #define omap_initcall(level, fn) \ 511 static int __init __used __##fn(void) \ 512 { \ 513 if (!soc_is_omap()) \ 514 return 0; \ 515 return fn(); \ 516 } \ 517 level(__##fn); 518 519 #define omap_early_initcall(fn) omap_initcall(early_initcall, fn) 520 #define omap_core_initcall(fn) omap_initcall(core_initcall, fn) 521 #define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn) 522 #define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn) 523 #define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn) 524 #define omap_device_initcall(fn) omap_initcall(device_initcall, fn) 525 #define omap_late_initcall(fn) omap_initcall(late_initcall, fn) 526 #define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn) 527 528 #endif /* __ASSEMBLY__ */ 529 530