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 128int 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 */ 136unsigned int omap_rev(void); 137 138static 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) \ 163static 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) \ 171static 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) \ 179static 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) \ 187static inline int is_omap ##subclass (void) \ 188{ \ 189 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 190} 191 192#define IS_TI_SUBCLASS(subclass, id) \ 193static inline int is_ti ##subclass (void) \ 194{ \ 195 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 196} 197 198#define IS_AM_SUBCLASS(subclass, id) \ 199static inline int is_am ##subclass (void) \ 200{ \ 201 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 202} 203 204IS_OMAP_CLASS(24xx, 0x24) 205IS_OMAP_CLASS(34xx, 0x34) 206IS_OMAP_CLASS(44xx, 0x44) 207IS_AM_CLASS(35xx, 0x35) 208IS_OMAP_CLASS(54xx, 0x54) 209IS_AM_CLASS(33xx, 0x33) 210IS_AM_CLASS(43xx, 0x43) 211 212IS_TI_CLASS(81xx, 0x81) 213 214IS_OMAP_SUBCLASS(242x, 0x242) 215IS_OMAP_SUBCLASS(243x, 0x243) 216IS_OMAP_SUBCLASS(343x, 0x343) 217IS_OMAP_SUBCLASS(363x, 0x363) 218IS_OMAP_SUBCLASS(443x, 0x443) 219IS_OMAP_SUBCLASS(446x, 0x446) 220IS_OMAP_SUBCLASS(447x, 0x447) 221IS_OMAP_SUBCLASS(543x, 0x543) 222 223IS_TI_SUBCLASS(816x, 0x816) 224IS_TI_SUBCLASS(814x, 0x814) 225IS_AM_SUBCLASS(335x, 0x335) 226IS_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) \ 305static inline int is_omap ##type (void) \ 306{ \ 307 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ 308} 309 310IS_OMAP_TYPE(2420, 0x2420) 311IS_OMAP_TYPE(2422, 0x2422) 312IS_OMAP_TYPE(2423, 0x2423) 313IS_OMAP_TYPE(2430, 0x2430) 314IS_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 474void omap2xxx_check_revision(void); 475void omap3xxx_check_revision(void); 476void omap4xxx_check_revision(void); 477void omap5xxx_check_revision(void); 478void dra7xxx_check_revision(void); 479void omap3xxx_check_features(void); 480void ti81xx_check_features(void); 481void am33xx_check_features(void); 482void 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 */ 494extern 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) \ 509static inline unsigned int omap3_has_ ##feat(void) \ 510{ \ 511 return omap_features & OMAP3_HAS_ ##flag; \ 512} \ 513 514OMAP3_HAS_FEATURE(l2cache, L2CACHE) 515OMAP3_HAS_FEATURE(sgx, SGX) 516OMAP3_HAS_FEATURE(iva, IVA) 517OMAP3_HAS_FEATURE(neon, NEON) 518OMAP3_HAS_FEATURE(isp, ISP) 519OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK) 520OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP) 521OMAP3_HAS_FEATURE(sdrc, SDRC) 522OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL) 523 524/* 525 * Runtime detection of OMAP4 features 526 */ 527#define OMAP4_HAS_FEATURE(feat, flag) \ 528static inline unsigned int omap4_has_ ##feat(void) \ 529{ \ 530 return omap_features & OMAP4_HAS_ ##flag; \ 531} \ 532 533OMAP4_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) \ 540static int __init __used __##fn(void) \ 541{ \ 542 if (!soc_is_omap()) \ 543 return 0; \ 544 return fn(); \ 545} \ 546level(__##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