include/asm-arm/arch-omap/cpu.h

   1 /*
   2  * linux/include/asm-arm/arch-omap/cpu.h
   3  *
   4  * OMAP cpu type detection
   5  *
   6  * Copyright (C) 2004, 2008 Nokia Corporation
   7  *
   8  * Written by Tony Lindgren <tony.lindgren@nokia.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23  *
  24  */
  25
  26 #ifndef __ASM_ARCH_OMAP_CPU_H
  27 #define __ASM_ARCH_OMAP_CPU_H
  28
  29 struct omap_chip_id {
  30         u8 oc;
  31 };
  32
  33 #define OMAP_CHIP_INIT(x)       { .oc = x }
  34
  35 extern unsigned int system_rev;
  36
  37 #define omap2_cpu_rev()         ((system_rev >> 12) & 0x0f)
  38
  39 /*
  40  * Test if multicore OMAP support is needed
  41  */
  42 #undef MULTI_OMAP1
  43 #undef MULTI_OMAP2
  44 #undef OMAP_NAME
  45
  46 #ifdef CONFIG_ARCH_OMAP730
  47 # ifdef OMAP_NAME
  48 #  undef  MULTI_OMAP1
  49 #  define MULTI_OMAP1
  50 # else
  51 #  define OMAP_NAME omap730
  52 # endif
  53 #endif
  54 #ifdef CONFIG_ARCH_OMAP15XX
  55 # ifdef OMAP_NAME
  56 #  undef  MULTI_OMAP1
  57 #  define MULTI_OMAP1
  58 # else
  59 #  define OMAP_NAME omap1510
  60 # endif
  61 #endif
  62 #ifdef CONFIG_ARCH_OMAP16XX
  63 # ifdef OMAP_NAME
  64 #  undef  MULTI_OMAP1
  65 #  define MULTI_OMAP1
  66 # else
  67 #  define OMAP_NAME omap16xx
  68 # endif
  69 #endif
  70 #if (defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX))
  71 # if (defined(OMAP_NAME) || defined(MULTI_OMAP1))
  72 #  error "OMAP1 and OMAP2 can't be selected at the same time"
  73 # endif
  74 #endif
  75 #ifdef CONFIG_ARCH_OMAP2420
  76 # ifdef OMAP_NAME
  77 #  undef  MULTI_OMAP2
  78 #  define MULTI_OMAP2
  79 # else
  80 #  define OMAP_NAME omap2420
  81 # endif
  82 #endif
  83 #ifdef CONFIG_ARCH_OMAP2430
  84 # ifdef OMAP_NAME
  85 #  undef  MULTI_OMAP2
  86 #  define MULTI_OMAP2
  87 # else
  88 #  define OMAP_NAME omap2430
  89 # endif
  90 #endif
  91 #ifdef CONFIG_ARCH_OMAP3430
  92 # ifdef OMAP_NAME
  93 #  undef  MULTI_OMAP2
  94 #  define MULTI_OMAP2
  95 # else
  96 #  define OMAP_NAME omap3430
  97 # endif
  98 #endif
  99
 100 /*
 101  * Macros to group OMAP into cpu classes.
 102  * These can be used in most places.
 103  * cpu_is_omap7xx():    True for OMAP730
 104  * cpu_is_omap15xx():   True for OMAP1510, OMAP5910 and OMAP310
 105  * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
 106  * cpu_is_omap24xx():   True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
 107  * cpu_is_omap242x():   True for OMAP2420, OMAP2422, OMAP2423
 108  * cpu_is_omap243x():   True for OMAP2430
 109  * cpu_is_omap343x():   True for OMAP3430
 110  */
 111 #define GET_OMAP_CLASS  ((system_rev >> 24) & 0xff)
 112
 113 #define IS_OMAP_CLASS(class, id)                        \
 114 static inline int is_omap ##class (void)                \
 115 {                                                       \
 116         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 117 }
 118
 119 #define GET_OMAP_SUBCLASS       ((system_rev >> 20) & 0x0fff)
 120
 121 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 122 static inline int is_omap ##subclass (void)             \
 123 {                                                       \
 124         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 125 }
 126
 127 IS_OMAP_CLASS(7xx, 0x07)
 128 IS_OMAP_CLASS(15xx, 0x15)
 129 IS_OMAP_CLASS(16xx, 0x16)
 130 IS_OMAP_CLASS(24xx, 0x24)
 131 IS_OMAP_CLASS(34xx, 0x34)
 132
 133 IS_OMAP_SUBCLASS(242x, 0x242)
 134 IS_OMAP_SUBCLASS(243x, 0x243)
 135 IS_OMAP_SUBCLASS(343x, 0x343)
 136
 137 #define cpu_is_omap7xx()                0
 138 #define cpu_is_omap15xx()               0
 139 #define cpu_is_omap16xx()               0
 140 #define cpu_is_omap24xx()               0
 141 #define cpu_is_omap242x()               0
 142 #define cpu_is_omap243x()               0
 143 #define cpu_is_omap34xx()               0
 144 #define cpu_is_omap343x()               0
 145
 146 #if defined(MULTI_OMAP1)
 147 # if defined(CONFIG_ARCH_OMAP730)
 148 #  undef  cpu_is_omap7xx
 149 #  define cpu_is_omap7xx()              is_omap7xx()
 150 # endif
 151 # if defined(CONFIG_ARCH_OMAP15XX)
 152 #  undef  cpu_is_omap15xx
 153 #  define cpu_is_omap15xx()             is_omap15xx()
 154 # endif
 155 # if defined(CONFIG_ARCH_OMAP16XX)
 156 #  undef  cpu_is_omap16xx
 157 #  define cpu_is_omap16xx()             is_omap16xx()
 158 # endif
 159 #else
 160 # if defined(CONFIG_ARCH_OMAP730)
 161 #  undef  cpu_is_omap7xx
 162 #  define cpu_is_omap7xx()              1
 163 # endif
 164 # if defined(CONFIG_ARCH_OMAP15XX)
 165 #  undef  cpu_is_omap15xx
 166 #  define cpu_is_omap15xx()             1
 167 # endif
 168 # if defined(CONFIG_ARCH_OMAP16XX)
 169 #  undef  cpu_is_omap16xx
 170 #  define cpu_is_omap16xx()             1
 171 # endif
 172 #endif
 173
 174 #if defined(MULTI_OMAP2)
 175 # if defined(CONFIG_ARCH_OMAP24XX)
 176 #  undef  cpu_is_omap24xx
 177 #  undef  cpu_is_omap242x
 178 #  undef  cpu_is_omap243x
 179 #  define cpu_is_omap24xx()             is_omap24xx()
 180 #  define cpu_is_omap242x()             is_omap242x()
 181 #  define cpu_is_omap243x()             is_omap243x()
 182 # endif
 183 # if defined(CONFIG_ARCH_OMAP34XX)
 184 #  undef  cpu_is_omap34xx
 185 #  undef  cpu_is_omap343x
 186 #  define cpu_is_omap34xx()             is_omap34xx()
 187 #  define cpu_is_omap343x()             is_omap343x()
 188 # endif
 189 #else
 190 # if defined(CONFIG_ARCH_OMAP24XX)
 191 #  undef  cpu_is_omap24xx
 192 #  define cpu_is_omap24xx()             1
 193 # endif
 194 # if defined(CONFIG_ARCH_OMAP2420)
 195 #  undef  cpu_is_omap242x
 196 #  define cpu_is_omap242x()             1
 197 # endif
 198 # if defined(CONFIG_ARCH_OMAP2430)
 199 #  undef  cpu_is_omap243x
 200 #  define cpu_is_omap243x()             1
 201 # endif
 202 # if defined(CONFIG_ARCH_OMAP34XX)
 203 #  undef  cpu_is_omap34xx
 204 #  define cpu_is_omap34xx()             1
 205 # endif
 206 # if defined(CONFIG_ARCH_OMAP3430)
 207 #  undef  cpu_is_omap343x
 208 #  define cpu_is_omap343x()             1
 209 # endif
 210 #endif
 211
 212 /*
 213  * Macros to detect individual cpu types.
 214  * These are only rarely needed.
 215  * cpu_is_omap330():    True for OMAP330
 216  * cpu_is_omap730():    True for OMAP730
 217  * cpu_is_omap1510():   True for OMAP1510
 218  * cpu_is_omap1610():   True for OMAP1610
 219  * cpu_is_omap1611():   True for OMAP1611
 220  * cpu_is_omap5912():   True for OMAP5912
 221  * cpu_is_omap1621():   True for OMAP1621
 222  * cpu_is_omap1710():   True for OMAP1710
 223  * cpu_is_omap2420():   True for OMAP2420
 224  * cpu_is_omap2422():   True for OMAP2422
 225  * cpu_is_omap2423():   True for OMAP2423
 226  * cpu_is_omap2430():   True for OMAP2430
 227  * cpu_is_omap3430():   True for OMAP3430
 228  */
 229 #define GET_OMAP_TYPE   ((system_rev >> 16) & 0xffff)
 230
 231 #define IS_OMAP_TYPE(type, id)                          \
 232 static inline int is_omap ##type (void)                 \
 233 {                                                       \
 234         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 235 }
 236
 237 IS_OMAP_TYPE(310, 0x0310)
 238 IS_OMAP_TYPE(730, 0x0730)
 239 IS_OMAP_TYPE(1510, 0x1510)
 240 IS_OMAP_TYPE(1610, 0x1610)
 241 IS_OMAP_TYPE(1611, 0x1611)
 242 IS_OMAP_TYPE(5912, 0x1611)
 243 IS_OMAP_TYPE(1621, 0x1621)
 244 IS_OMAP_TYPE(1710, 0x1710)
 245 IS_OMAP_TYPE(2420, 0x2420)
 246 IS_OMAP_TYPE(2422, 0x2422)
 247 IS_OMAP_TYPE(2423, 0x2423)
 248 IS_OMAP_TYPE(2430, 0x2430)
 249 IS_OMAP_TYPE(3430, 0x3430)
 250
 251 #define cpu_is_omap310()                0
 252 #define cpu_is_omap730()                0
 253 #define cpu_is_omap1510()               0
 254 #define cpu_is_omap1610()               0
 255 #define cpu_is_omap5912()               0
 256 #define cpu_is_omap1611()               0
 257 #define cpu_is_omap1621()               0
 258 #define cpu_is_omap1710()               0
 259 #define cpu_is_omap2420()               0
 260 #define cpu_is_omap2422()               0
 261 #define cpu_is_omap2423()               0
 262 #define cpu_is_omap2430()               0
 263 #define cpu_is_omap3430()               0
 264
 265 #if defined(MULTI_OMAP1)
 266 # if defined(CONFIG_ARCH_OMAP730)
 267 #  undef  cpu_is_omap730
 268 #  define cpu_is_omap730()              is_omap730()
 269 # endif
 270 #else
 271 # if defined(CONFIG_ARCH_OMAP730)
 272 #  undef  cpu_is_omap730
 273 #  define cpu_is_omap730()              1
 274 # endif
 275 #endif
 276
 277 /*
 278  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 279  * between 330 vs. 1510 and 1611B/5912 vs. 1710.
 280  */
 281 #if defined(CONFIG_ARCH_OMAP15XX)
 282 # undef  cpu_is_omap310
 283 # undef  cpu_is_omap1510
 284 # define cpu_is_omap310()               is_omap310()
 285 # define cpu_is_omap1510()              is_omap1510()
 286 #endif
 287
 288 #if defined(CONFIG_ARCH_OMAP16XX)
 289 # undef  cpu_is_omap1610
 290 # undef  cpu_is_omap1611
 291 # undef  cpu_is_omap5912
 292 # undef  cpu_is_omap1621
 293 # undef  cpu_is_omap1710
 294 # define cpu_is_omap1610()              is_omap1610()
 295 # define cpu_is_omap1611()              is_omap1611()
 296 # define cpu_is_omap5912()              is_omap5912()
 297 # define cpu_is_omap1621()              is_omap1621()
 298 # define cpu_is_omap1710()              is_omap1710()
 299 #endif
 300
 301 #if defined(CONFIG_ARCH_OMAP24XX)
 302 # undef  cpu_is_omap2420
 303 # undef  cpu_is_omap2422
 304 # undef  cpu_is_omap2423
 305 # undef  cpu_is_omap2430
 306 # define cpu_is_omap2420()              is_omap2420()
 307 # define cpu_is_omap2422()              is_omap2422()
 308 # define cpu_is_omap2423()              is_omap2423()
 309 # define cpu_is_omap2430()              is_omap2430()
 310 #endif
 311
 312 #if defined(CONFIG_ARCH_OMAP34XX)
 313 # undef cpu_is_omap3430
 314 # define cpu_is_omap3430()              is_omap3430()
 315 #endif
 316
 317 /* Macros to detect if we have OMAP1 or OMAP2 */
 318 #define cpu_class_is_omap1()    (cpu_is_omap730() || cpu_is_omap15xx() || \
 319                                 cpu_is_omap16xx())
 320 #define cpu_class_is_omap2()    (cpu_is_omap24xx() || cpu_is_omap34xx())
 321
 322 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
 323 /*
 324  * Macros to detect silicon revision of OMAP2/3 processors.
 325  * is_sil_rev_greater_than:     true if passed cpu type & its rev is greater.
 326  * is_sil_rev_lesser_than:      true if passed cpu type & its rev is lesser.
 327  * is_sil_rev_equal_to:         true if passed cpu type & its rev is equal.
 328  * get_sil_rev:                 return the silicon rev value.
 329  */
 330 #define get_sil_omap_type(rev)  ((rev & 0xffff0000) >> 16)
 331 #define get_sil_revision(rev)   ((rev & 0x0000f000) >> 12)
 332
 333 #define is_sil_rev_greater_than(rev) \
 334                 ((get_sil_omap_type(system_rev) == get_sil_omap_type(rev)) && \
 335                 (get_sil_revision(system_rev) > get_sil_revision(rev)))
 336
 337 #define is_sil_rev_less_than(rev) \
 338                 ((get_sil_omap_type(system_rev) == get_sil_omap_type(rev)) && \
 339                 (get_sil_revision(system_rev) < get_sil_revision(rev)))
 340
 341 #define is_sil_rev_equal_to(rev) \
 342                 ((get_sil_omap_type(system_rev) == get_sil_omap_type(rev)) && \
 343                 (get_sil_revision(system_rev) == get_sil_revision(rev)))
 344
 345 #define get_sil_rev() \
 346                 get_sil_revision(system_rev)
 347
 348 /* Various silicon macros defined here */
 349 #define OMAP2420_REV_ES1_0      0x24200000
 350 #define OMAP2420_REV_ES2_0      0x24201000
 351 #define OMAP2430_REV_ES1_0      0x24300000
 352 #define OMAP3430_REV_ES1_0      0x34300000
 353 #define OMAP3430_REV_ES2_0      0x34301000
 354 #define OMAP3430_REV_ES2_1      0x34302000
 355 #define OMAP3430_REV_ES2_2      0x34303000
 356
 357 /*
 358  * omap_chip bits
 359  *
 360  * CHIP_IS_OMAP{2420,2430,3430} indicate that a particular structure is
 361  * valid on all chips of that type.  CHIP_IS_OMAP3430ES{1,2} indicates
 362  * something that is only valid on that particular ES revision.
 363  *
 364  * These bits may be ORed together to indicate structures that are
 365  * available on multiple chip types.
 366  *
 367  * To test whether a particular structure matches the current OMAP chip type,
 368  * use omap_chip_is().
 369  *
 370  */
 371 #define CHIP_IS_OMAP2420       (1 << 0)
 372 #define CHIP_IS_OMAP2430       (1 << 1)
 373 #define CHIP_IS_OMAP3430       (1 << 2)
 374 #define CHIP_IS_OMAP3430ES1    (1 << 3)
 375 #define CHIP_IS_OMAP3430ES2    (1 << 4)
 376
 377 #define CHIP_IS_OMAP24XX       (CHIP_IS_OMAP2420 | CHIP_IS_OMAP2430)
 378
 379 int omap_chip_is(struct omap_chip_id oci);
 380
 381
 382 /*
 383  * Macro to detect device type i.e. EMU/HS/TST/GP/BAD
 384  */
 385 #define DEVICE_TYPE_TEST        0
 386 #define DEVICE_TYPE_EMU         1
 387 #define DEVICE_TYPE_SEC         2
 388 #define DEVICE_TYPE_GP          3
 389 #define DEVICE_TYPE_BAD         4
 390
 391 #define get_device_type()       ((system_rev & 0x700) >> 8)
 392 #define is_device_type_test()   (get_device_type() == DEVICE_TYPE_TEST)
 393 #define is_device_type_emu()    (get_device_type() == DEVICE_TYPE_EMU)
 394 #define is_device_type_sec()    (get_device_type() == DEVICE_TYPE_SEC)
 395 #define is_device_type_gp()     (get_device_type() == DEVICE_TYPE_GP)
 396 #define is_device_type_bad()    (get_device_type() == DEVICE_TYPE_BAD)
 397
 398 void omap2_check_revision(void);
 399
 400 #endif    /* defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) */
 401
 402 #endif