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