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 #define GET_DRA_PACKAGE (omap_rev() & 0xff) 147 148 #define IS_DRA_SUBCLASS_PACKAGE(subclass, package, id) \ 149 static inline int is_dra ##subclass ##_ ##package (void) \ 150 { \ 151 return (is_dra ##subclass () && GET_DRA_PACKAGE == id) ? 1 : 0; \ 152 } 153 154 IS_OMAP_CLASS(24xx, 0x24) 155 IS_OMAP_CLASS(34xx, 0x34) 156 IS_OMAP_CLASS(44xx, 0x44) 157 IS_AM_CLASS(35xx, 0x35) 158 IS_OMAP_CLASS(54xx, 0x54) 159 IS_AM_CLASS(33xx, 0x33) 160 IS_AM_CLASS(43xx, 0x43) 161 162 IS_TI_CLASS(81xx, 0x81) 163 IS_DRA_CLASS(7xx, 0x7) 164 165 IS_OMAP_SUBCLASS(242x, 0x242) 166 IS_OMAP_SUBCLASS(243x, 0x243) 167 IS_OMAP_SUBCLASS(343x, 0x343) 168 IS_OMAP_SUBCLASS(363x, 0x363) 169 IS_OMAP_SUBCLASS(443x, 0x443) 170 IS_OMAP_SUBCLASS(446x, 0x446) 171 IS_OMAP_SUBCLASS(447x, 0x447) 172 IS_OMAP_SUBCLASS(543x, 0x543) 173 174 IS_TI_SUBCLASS(816x, 0x816) 175 IS_TI_SUBCLASS(814x, 0x814) 176 IS_AM_SUBCLASS(335x, 0x335) 177 IS_AM_SUBCLASS(437x, 0x437) 178 IS_DRA_SUBCLASS(76x, 0x76) 179 IS_DRA_SUBCLASS_PACKAGE(76x, abz, 2) 180 IS_DRA_SUBCLASS_PACKAGE(76x, acd, 3) 181 IS_DRA_SUBCLASS(75x, 0x75) 182 IS_DRA_SUBCLASS(72x, 0x72) 183 184 #define soc_is_ti81xx() 0 185 #define soc_is_ti816x() 0 186 #define soc_is_ti814x() 0 187 #define soc_is_am35xx() 0 188 #define soc_is_am33xx() 0 189 #define soc_is_am335x() 0 190 #define soc_is_am43xx() 0 191 #define soc_is_am437x() 0 192 #define soc_is_omap44xx() 0 193 #define soc_is_omap443x() 0 194 #define soc_is_omap446x() 0 195 #define soc_is_omap447x() 0 196 #define soc_is_omap54xx() 0 197 #define soc_is_omap543x() 0 198 #define soc_is_dra7xx() 0 199 #define soc_is_dra76x() 0 200 #define soc_is_dra74x() 0 201 #define soc_is_dra72x() 0 202 203 #if defined(CONFIG_ARCH_OMAP2) 204 # define soc_is_omap24xx() is_omap24xx() 205 #else 206 # define soc_is_omap24xx() 0 207 #endif 208 #if defined(CONFIG_SOC_OMAP2420) 209 # define soc_is_omap242x() is_omap242x() 210 #else 211 # define soc_is_omap242x() 0 212 #endif 213 #if defined(CONFIG_SOC_OMAP2430) 214 # define soc_is_omap243x() is_omap243x() 215 #else 216 # define soc_is_omap243x() 0 217 #endif 218 #if defined(CONFIG_ARCH_OMAP3) 219 # define soc_is_omap34xx() is_omap34xx() 220 # define soc_is_omap343x() is_omap343x() 221 #else 222 # define soc_is_omap34xx() 0 223 # define soc_is_omap343x() 0 224 #endif 225 226 /* 227 * Macros to detect individual cpu types. 228 * These are only rarely needed. 229 * soc_is_omap2420(): True for OMAP2420 230 * soc_is_omap2422(): True for OMAP2422 231 * soc_is_omap2423(): True for OMAP2423 232 * soc_is_omap2430(): True for OMAP2430 233 * soc_is_omap3430(): True for OMAP3430 234 */ 235 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff) 236 237 #define IS_OMAP_TYPE(type, id) \ 238 static inline int is_omap ##type (void) \ 239 { \ 240 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ 241 } 242 243 IS_OMAP_TYPE(2420, 0x2420) 244 IS_OMAP_TYPE(2422, 0x2422) 245 IS_OMAP_TYPE(2423, 0x2423) 246 IS_OMAP_TYPE(2430, 0x2430) 247 IS_OMAP_TYPE(3430, 0x3430) 248 249 #define soc_is_omap2420() 0 250 #define soc_is_omap2422() 0 251 #define soc_is_omap2423() 0 252 #define soc_is_omap2430() 0 253 #define soc_is_omap3430() 0 254 #define soc_is_omap3630() 0 255 #define soc_is_omap5430() 0 256 257 /* These are needed for the common code */ 258 #define soc_is_omap7xx() 0 259 #define soc_is_omap15xx() 0 260 #define soc_is_omap16xx() 0 261 #define soc_is_omap1510() 0 262 #define soc_is_omap1610() 0 263 #define soc_is_omap1611() 0 264 #define soc_is_omap1621() 0 265 #define soc_is_omap1710() 0 266 #define cpu_class_is_omap1() 0 267 #define cpu_class_is_omap2() 1 268 269 #if defined(CONFIG_ARCH_OMAP2) 270 # undef soc_is_omap2420 271 # undef soc_is_omap2422 272 # undef soc_is_omap2423 273 # undef soc_is_omap2430 274 # define soc_is_omap2420() is_omap2420() 275 # define soc_is_omap2422() is_omap2422() 276 # define soc_is_omap2423() is_omap2423() 277 # define soc_is_omap2430() is_omap2430() 278 #endif 279 280 #if defined(CONFIG_ARCH_OMAP3) 281 # undef soc_is_omap3430 282 # undef soc_is_ti81xx 283 # undef soc_is_ti816x 284 # undef soc_is_ti814x 285 # undef soc_is_am35xx 286 # define soc_is_omap3430() is_omap3430() 287 # undef soc_is_omap3630 288 # define soc_is_omap3630() is_omap363x() 289 # define soc_is_ti81xx() is_ti81xx() 290 # define soc_is_ti816x() is_ti816x() 291 # define soc_is_ti814x() is_ti814x() 292 # define soc_is_am35xx() is_am35xx() 293 #endif 294 295 # if defined(CONFIG_SOC_AM33XX) 296 # undef soc_is_am33xx 297 # undef soc_is_am335x 298 # define soc_is_am33xx() is_am33xx() 299 # define soc_is_am335x() is_am335x() 300 #endif 301 302 #ifdef CONFIG_SOC_AM43XX 303 # undef soc_is_am43xx 304 # undef soc_is_am437x 305 # define soc_is_am43xx() is_am43xx() 306 # define soc_is_am437x() is_am437x() 307 #endif 308 309 # if defined(CONFIG_ARCH_OMAP4) 310 # undef soc_is_omap44xx 311 # undef soc_is_omap443x 312 # undef soc_is_omap446x 313 # undef soc_is_omap447x 314 # define soc_is_omap44xx() is_omap44xx() 315 # define soc_is_omap443x() is_omap443x() 316 # define soc_is_omap446x() is_omap446x() 317 # define soc_is_omap447x() is_omap447x() 318 # endif 319 320 # if defined(CONFIG_SOC_OMAP5) 321 # undef soc_is_omap54xx 322 # undef soc_is_omap543x 323 # define soc_is_omap54xx() is_omap54xx() 324 # define soc_is_omap543x() is_omap543x() 325 #endif 326 327 #if defined(CONFIG_SOC_DRA7XX) 328 #undef soc_is_dra7xx 329 #undef soc_is_dra76x 330 #undef soc_is_dra76x_abz 331 #undef soc_is_dra76x_acd 332 #undef soc_is_dra74x 333 #undef soc_is_dra72x 334 #define soc_is_dra7xx() is_dra7xx() 335 #define soc_is_dra76x() is_dra76x() 336 #define soc_is_dra76x_abz() is_dra76x_abz() 337 #define soc_is_dra76x_acd() is_dra76x_acd() 338 #define soc_is_dra74x() is_dra75x() 339 #define soc_is_dra72x() is_dra72x() 340 #endif 341 342 /* Various silicon revisions for omap2 */ 343 #define OMAP242X_CLASS 0x24200024 344 #define OMAP2420_REV_ES1_0 OMAP242X_CLASS 345 #define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8)) 346 347 #define OMAP243X_CLASS 0x24300024 348 #define OMAP2430_REV_ES1_0 OMAP243X_CLASS 349 350 #define OMAP343X_CLASS 0x34300034 351 #define OMAP3430_REV_ES1_0 OMAP343X_CLASS 352 #define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8)) 353 #define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8)) 354 #define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8)) 355 #define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8)) 356 #define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8)) 357 358 #define OMAP363X_CLASS 0x36300034 359 #define OMAP3630_REV_ES1_0 OMAP363X_CLASS 360 #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8)) 361 #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8)) 362 363 #define TI816X_CLASS 0x81600081 364 #define TI8168_REV_ES1_0 TI816X_CLASS 365 #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8)) 366 #define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8)) 367 #define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8)) 368 369 #define TI814X_CLASS 0x81400081 370 #define TI8148_REV_ES1_0 TI814X_CLASS 371 #define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8)) 372 #define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8)) 373 374 #define AM35XX_CLASS 0x35170034 375 #define AM35XX_REV_ES1_0 AM35XX_CLASS 376 #define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8)) 377 378 #define AM335X_CLASS 0x33500033 379 #define AM335X_REV_ES1_0 AM335X_CLASS 380 #define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8)) 381 #define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8)) 382 383 #define AM437X_CLASS 0x43700000 384 #define AM437X_REV_ES1_0 (AM437X_CLASS | (0x10 << 8)) 385 #define AM437X_REV_ES1_1 (AM437X_CLASS | (0x11 << 8)) 386 #define AM437X_REV_ES1_2 (AM437X_CLASS | (0x12 << 8)) 387 388 #define OMAP443X_CLASS 0x44300044 389 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8)) 390 #define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8)) 391 #define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8)) 392 #define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8)) 393 #define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8)) 394 395 #define OMAP446X_CLASS 0x44600044 396 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8)) 397 #define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8)) 398 399 #define OMAP447X_CLASS 0x44700044 400 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8)) 401 402 #define OMAP54XX_CLASS 0x54000054 403 #define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8)) 404 #define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8)) 405 406 #define DRA7XX_CLASS 0x07000000 407 #define DRA762_REV_ES1_0 (DRA7XX_CLASS | (0x62 << 16) | (0x10 << 8)) 408 #define DRA762_ABZ_REV_ES1_0 (DRA762_REV_ES1_0 | (2 << 0)) 409 #define DRA762_ACD_REV_ES1_0 (DRA762_REV_ES1_0 | (3 << 0)) 410 #define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8)) 411 #define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8)) 412 #define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8)) 413 #define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8)) 414 #define DRA722_REV_ES2_0 (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8)) 415 #define DRA722_REV_ES2_1 (DRA7XX_CLASS | (0x22 << 16) | (0x21 << 8)) 416 417 void omap2xxx_check_revision(void); 418 void omap3xxx_check_revision(void); 419 void omap4xxx_check_revision(void); 420 void omap5xxx_check_revision(void); 421 void dra7xxx_check_revision(void); 422 void omap3xxx_check_features(void); 423 void ti81xx_check_features(void); 424 void am33xx_check_features(void); 425 void omap4xxx_check_features(void); 426 427 /* 428 * Runtime detection of OMAP3 features 429 * 430 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip 431 * family have OS-level control over the I/O chain clock. This is 432 * to avoid a window during which wakeups could potentially be lost 433 * during powerdomain transitions. If this bit is set, it 434 * indicates that the chip does support OS-level control of this 435 * feature. 436 */ 437 extern u32 omap_features; 438 439 #define OMAP3_HAS_L2CACHE BIT(0) 440 #define OMAP3_HAS_IVA BIT(1) 441 #define OMAP3_HAS_SGX BIT(2) 442 #define OMAP3_HAS_NEON BIT(3) 443 #define OMAP3_HAS_ISP BIT(4) 444 #define OMAP3_HAS_192MHZ_CLK BIT(5) 445 #define OMAP3_HAS_IO_WAKEUP BIT(6) 446 #define OMAP3_HAS_SDRC BIT(7) 447 #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8) 448 #define OMAP4_HAS_PERF_SILICON BIT(9) 449 450 451 #define OMAP3_HAS_FEATURE(feat,flag) \ 452 static inline unsigned int omap3_has_ ##feat(void) \ 453 { \ 454 return omap_features & OMAP3_HAS_ ##flag; \ 455 } \ 456 457 OMAP3_HAS_FEATURE(l2cache, L2CACHE) 458 OMAP3_HAS_FEATURE(sgx, SGX) 459 OMAP3_HAS_FEATURE(iva, IVA) 460 OMAP3_HAS_FEATURE(neon, NEON) 461 OMAP3_HAS_FEATURE(isp, ISP) 462 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK) 463 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP) 464 OMAP3_HAS_FEATURE(sdrc, SDRC) 465 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL) 466 467 /* 468 * Runtime detection of OMAP4 features 469 */ 470 #define OMAP4_HAS_FEATURE(feat, flag) \ 471 static inline unsigned int omap4_has_ ##feat(void) \ 472 { \ 473 return omap_features & OMAP4_HAS_ ##flag; \ 474 } \ 475 476 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON) 477 478 /* 479 * We need to make sure omap initcalls don't run when 480 * multiplatform kernels are booted on other SoCs. 481 */ 482 #define omap_initcall(level, fn) \ 483 static int __init __used __##fn(void) \ 484 { \ 485 if (!soc_is_omap()) \ 486 return 0; \ 487 return fn(); \ 488 } \ 489 level(__##fn); 490 491 #define omap_early_initcall(fn) omap_initcall(early_initcall, fn) 492 #define omap_core_initcall(fn) omap_initcall(core_initcall, fn) 493 #define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn) 494 #define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn) 495 #define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn) 496 #define omap_device_initcall(fn) omap_initcall(device_initcall, fn) 497 #define omap_late_initcall(fn) omap_initcall(late_initcall, fn) 498 #define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn) 499 500 /* Legacy defines, these can be removed when users are removed */ 501 #define cpu_is_omap2420() soc_is_omap2420() 502 #define cpu_is_omap2422() soc_is_omap2422() 503 #define cpu_is_omap242x() soc_is_omap242x() 504 #define cpu_is_omap2430() soc_is_omap2430() 505 #define cpu_is_omap243x() soc_is_omap243x() 506 #define cpu_is_omap24xx() soc_is_omap24xx() 507 #define cpu_is_omap3430() soc_is_omap3430() 508 #define cpu_is_omap343x() soc_is_omap343x() 509 #define cpu_is_omap34xx() soc_is_omap34xx() 510 #define cpu_is_omap3630() soc_is_omap3630() 511 #define cpu_is_omap443x() soc_is_omap443x() 512 #define cpu_is_omap446x() soc_is_omap446x() 513 #define cpu_is_omap44xx() soc_is_omap44xx() 514 #define cpu_is_ti814x() soc_is_ti814x() 515 #define cpu_is_ti816x() soc_is_ti816x() 516 #define cpu_is_ti81xx() soc_is_ti81xx() 517 518 #endif /* __ASSEMBLY__ */ 519