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