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cpu.h
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1 /*
2  * arch/arm/plat-omap/include/mach/cpu.h
3  *
4  * OMAP cpu type detection
5  *
6  * Copyright (C) 2004, 2008 Nokia Corporation
7  *
8  * Copyright (C) 2009-11 Texas Instruments.
9  *
10  * Written by Tony Lindgren <[email protected]>
11  *
12  * Added OMAP4/5 specific defines - Santosh Shilimkar<[email protected]>
13  *
14  * This program is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License as published by
16  * the Free Software Foundation; either version 2 of the License, or
17  * (at your option) any later version.
18  *
19  * This program is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22  * GNU General Public License for more details.
23  *
24  * You should have received a copy of the GNU General Public License
25  * along with this program; if not, write to the Free Software
26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27  *
28  */
29 
30 #ifndef __ASM_ARCH_OMAP_CPU_H
31 #define __ASM_ARCH_OMAP_CPU_H
32 
33 #ifndef __ASSEMBLY__
34 
35 #include <linux/bitops.h>
36 #include <plat/multi.h>
37 
38 /*
39  * Omap device type i.e. EMU/HS/TST/GP/BAD
40  */
41 #define OMAP2_DEVICE_TYPE_TEST 0
42 #define OMAP2_DEVICE_TYPE_EMU 1
43 #define OMAP2_DEVICE_TYPE_SEC 2
44 #define OMAP2_DEVICE_TYPE_GP 3
45 #define OMAP2_DEVICE_TYPE_BAD 4
46 
47 int omap_type(void);
48 
49 /*
50  * omap_rev bits:
51  * CPU id bits (0730, 1510, 1710, 2422...) [31:16]
52  * CPU revision (See _REV_ defined in cpu.h) [15:08]
53  * CPU class bits (15xx, 16xx, 24xx, 34xx...) [07:00]
54  */
55 unsigned int omap_rev(void);
56 
57 /*
58  * Get the CPU revision for OMAP devices
59  */
60 #define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff)
61 
62 /*
63  * Macros to group OMAP into cpu classes.
64  * These can be used in most places.
65  * cpu_is_omap7xx(): True for OMAP730, OMAP850
66  * cpu_is_omap15xx(): True for OMAP1510, OMAP5910 and OMAP310
67  * cpu_is_omap16xx(): True for OMAP1610, OMAP5912 and OMAP1710
68  * cpu_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
69  * cpu_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423
70  * cpu_is_omap243x(): True for OMAP2430
71  * cpu_is_omap343x(): True for OMAP3430
72  * cpu_is_omap443x(): True for OMAP4430
73  * cpu_is_omap446x(): True for OMAP4460
74  * cpu_is_omap447x(): True for OMAP4470
75  * soc_is_omap543x(): True for OMAP5430, OMAP5432
76  */
77 #define GET_OMAP_CLASS (omap_rev() & 0xff)
78 
79 #define IS_OMAP_CLASS(class, id) \
80 static inline int is_omap ##class (void) \
81 { \
82  return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
83 }
84 
85 #define GET_AM_CLASS ((omap_rev() >> 24) & 0xff)
86 
87 #define IS_AM_CLASS(class, id) \
88 static inline int is_am ##class (void) \
89 { \
90  return (GET_AM_CLASS == (id)) ? 1 : 0; \
91 }
92 
93 #define GET_TI_CLASS ((omap_rev() >> 24) & 0xff)
94 
95 #define IS_TI_CLASS(class, id) \
96 static inline int is_ti ##class (void) \
97 { \
98  return (GET_TI_CLASS == (id)) ? 1 : 0; \
99 }
100 
101 #define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff)
102 
103 #define IS_OMAP_SUBCLASS(subclass, id) \
104 static inline int is_omap ##subclass (void) \
105 { \
106  return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
107 }
108 
109 #define IS_TI_SUBCLASS(subclass, id) \
110 static inline int is_ti ##subclass (void) \
111 { \
112  return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
113 }
114 
115 #define IS_AM_SUBCLASS(subclass, id) \
116 static inline int is_am ##subclass (void) \
117 { \
118  return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
119 }
120 
121 IS_OMAP_CLASS(7xx, 0x07)
122 IS_OMAP_CLASS(15xx, 0x15)
123 IS_OMAP_CLASS(16xx, 0x16)
124 IS_OMAP_CLASS(24xx, 0x24)
125 IS_OMAP_CLASS(34xx, 0x34)
126 IS_OMAP_CLASS(44xx, 0x44)
127 IS_AM_CLASS(35xx, 0x35)
128 IS_OMAP_CLASS(54xx, 0x54)
129 IS_AM_CLASS(33xx, 0x33)
130 
131 IS_TI_CLASS(81xx, 0x81)
132 
133 IS_OMAP_SUBCLASS(242x, 0x242)
134 IS_OMAP_SUBCLASS(243x, 0x243)
135 IS_OMAP_SUBCLASS(343x, 0x343)
136 IS_OMAP_SUBCLASS(363x, 0x363)
137 IS_OMAP_SUBCLASS(443x, 0x443)
138 IS_OMAP_SUBCLASS(446x, 0x446)
139 IS_OMAP_SUBCLASS(447x, 0x447)
140 IS_OMAP_SUBCLASS(543x, 0x543)
141 
142 IS_TI_SUBCLASS(816x, 0x816)
143 IS_TI_SUBCLASS(814x, 0x814)
144 IS_AM_SUBCLASS(335x, 0x335)
145 
146 #define cpu_is_omap7xx() 0
147 #define cpu_is_omap15xx() 0
148 #define cpu_is_omap16xx() 0
149 #define cpu_is_omap24xx() 0
150 #define cpu_is_omap242x() 0
151 #define cpu_is_omap243x() 0
152 #define cpu_is_omap34xx() 0
153 #define cpu_is_omap343x() 0
154 #define cpu_is_ti81xx() 0
155 #define cpu_is_ti816x() 0
156 #define cpu_is_ti814x() 0
157 #define soc_is_am35xx() 0
158 #define soc_is_am33xx() 0
159 #define soc_is_am335x() 0
160 #define cpu_is_omap44xx() 0
161 #define cpu_is_omap443x() 0
162 #define cpu_is_omap446x() 0
163 #define cpu_is_omap447x() 0
164 #define soc_is_omap54xx() 0
165 #define soc_is_omap543x() 0
166 
167 #if defined(MULTI_OMAP1)
168 # if defined(CONFIG_ARCH_OMAP730)
169 # undef cpu_is_omap7xx
170 # define cpu_is_omap7xx() is_omap7xx()
171 # endif
172 # if defined(CONFIG_ARCH_OMAP850)
173 # undef cpu_is_omap7xx
174 # define cpu_is_omap7xx() is_omap7xx()
175 # endif
176 # if defined(CONFIG_ARCH_OMAP15XX)
177 # undef cpu_is_omap15xx
178 # define cpu_is_omap15xx() is_omap15xx()
179 # endif
180 # if defined(CONFIG_ARCH_OMAP16XX)
181 # undef cpu_is_omap16xx
182 # define cpu_is_omap16xx() is_omap16xx()
183 # endif
184 #else
185 # if defined(CONFIG_ARCH_OMAP730)
186 # undef cpu_is_omap7xx
187 # define cpu_is_omap7xx() 1
188 # endif
189 # if defined(CONFIG_ARCH_OMAP850)
190 # undef cpu_is_omap7xx
191 # define cpu_is_omap7xx() 1
192 # endif
193 # if defined(CONFIG_ARCH_OMAP15XX)
194 # undef cpu_is_omap15xx
195 # define cpu_is_omap15xx() 1
196 # endif
197 # if defined(CONFIG_ARCH_OMAP16XX)
198 # undef cpu_is_omap16xx
199 # define cpu_is_omap16xx() 1
200 # endif
201 #endif
202 
203 #if defined(MULTI_OMAP2)
204 # if defined(CONFIG_ARCH_OMAP2)
205 # undef cpu_is_omap24xx
206 # define cpu_is_omap24xx() is_omap24xx()
207 # endif
208 # if defined (CONFIG_SOC_OMAP2420)
209 # undef cpu_is_omap242x
210 # define cpu_is_omap242x() is_omap242x()
211 # endif
212 # if defined (CONFIG_SOC_OMAP2430)
213 # undef cpu_is_omap243x
214 # define cpu_is_omap243x() is_omap243x()
215 # endif
216 # if defined(CONFIG_ARCH_OMAP3)
217 # undef cpu_is_omap34xx
218 # undef cpu_is_omap343x
219 # define cpu_is_omap34xx() is_omap34xx()
220 # define cpu_is_omap343x() is_omap343x()
221 # endif
222 #else
223 # if defined(CONFIG_ARCH_OMAP2)
224 # undef cpu_is_omap24xx
225 # define cpu_is_omap24xx() 1
226 # endif
227 # if defined(CONFIG_SOC_OMAP2420)
228 # undef cpu_is_omap242x
229 # define cpu_is_omap242x() 1
230 # endif
231 # if defined(CONFIG_SOC_OMAP2430)
232 # undef cpu_is_omap243x
233 # define cpu_is_omap243x() 1
234 # endif
235 # if defined(CONFIG_ARCH_OMAP3)
236 # undef cpu_is_omap34xx
237 # define cpu_is_omap34xx() 1
238 # endif
239 # if defined(CONFIG_SOC_OMAP3430)
240 # undef cpu_is_omap343x
241 # define cpu_is_omap343x() 1
242 # endif
243 #endif
244 
245 /*
246  * Macros to detect individual cpu types.
247  * These are only rarely needed.
248  * cpu_is_omap310(): True for OMAP310
249  * cpu_is_omap1510(): True for OMAP1510
250  * cpu_is_omap1610(): True for OMAP1610
251  * cpu_is_omap1611(): True for OMAP1611
252  * cpu_is_omap5912(): True for OMAP5912
253  * cpu_is_omap1621(): True for OMAP1621
254  * cpu_is_omap1710(): True for OMAP1710
255  * cpu_is_omap2420(): True for OMAP2420
256  * cpu_is_omap2422(): True for OMAP2422
257  * cpu_is_omap2423(): True for OMAP2423
258  * cpu_is_omap2430(): True for OMAP2430
259  * cpu_is_omap3430(): True for OMAP3430
260  */
261 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
262 
263 #define IS_OMAP_TYPE(type, id) \
264 static inline int is_omap ##type (void) \
265 { \
266  return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
267 }
268 
269 IS_OMAP_TYPE(310, 0x0310)
270 IS_OMAP_TYPE(1510, 0x1510)
271 IS_OMAP_TYPE(1610, 0x1610)
272 IS_OMAP_TYPE(1611, 0x1611)
273 IS_OMAP_TYPE(5912, 0x1611)
274 IS_OMAP_TYPE(1621, 0x1621)
275 IS_OMAP_TYPE(1710, 0x1710)
276 IS_OMAP_TYPE(2420, 0x2420)
277 IS_OMAP_TYPE(2422, 0x2422)
278 IS_OMAP_TYPE(2423, 0x2423)
279 IS_OMAP_TYPE(2430, 0x2430)
280 IS_OMAP_TYPE(3430, 0x3430)
281 
282 #define cpu_is_omap310() 0
283 #define cpu_is_omap1510() 0
284 #define cpu_is_omap1610() 0
285 #define cpu_is_omap5912() 0
286 #define cpu_is_omap1611() 0
287 #define cpu_is_omap1621() 0
288 #define cpu_is_omap1710() 0
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 /*
298  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
299  * between 310 vs. 1510 and 1611B/5912 vs. 1710.
300  */
301 
302 #if defined(CONFIG_ARCH_OMAP15XX)
303 # undef cpu_is_omap310
304 # undef cpu_is_omap1510
305 # define cpu_is_omap310() is_omap310()
306 # define cpu_is_omap1510() is_omap1510()
307 #endif
308 
309 #if defined(CONFIG_ARCH_OMAP16XX)
310 # undef cpu_is_omap1610
311 # undef cpu_is_omap1611
312 # undef cpu_is_omap5912
313 # undef cpu_is_omap1621
314 # undef cpu_is_omap1710
315 # define cpu_is_omap1610() is_omap1610()
316 # define cpu_is_omap1611() is_omap1611()
317 # define cpu_is_omap5912() is_omap5912()
318 # define cpu_is_omap1621() is_omap1621()
319 # define cpu_is_omap1710() is_omap1710()
320 #endif
321 
322 #if defined(CONFIG_ARCH_OMAP2)
323 # undef cpu_is_omap2420
324 # undef cpu_is_omap2422
325 # undef cpu_is_omap2423
326 # undef cpu_is_omap2430
327 # define cpu_is_omap2420() is_omap2420()
328 # define cpu_is_omap2422() is_omap2422()
329 # define cpu_is_omap2423() is_omap2423()
330 # define cpu_is_omap2430() is_omap2430()
331 #endif
332 
333 #if defined(CONFIG_ARCH_OMAP3)
334 # undef cpu_is_omap3430
335 # undef cpu_is_ti81xx
336 # undef cpu_is_ti816x
337 # undef cpu_is_ti814x
338 # undef soc_is_am35xx
339 # define cpu_is_omap3430() is_omap3430()
340 # undef cpu_is_omap3630
341 # define cpu_is_omap3630() is_omap363x()
342 # define cpu_is_ti81xx() is_ti81xx()
343 # define cpu_is_ti816x() is_ti816x()
344 # define cpu_is_ti814x() is_ti814x()
345 # define soc_is_am35xx() is_am35xx()
346 #endif
347 
348 # if defined(CONFIG_SOC_AM33XX)
349 # undef soc_is_am33xx
350 # undef soc_is_am335x
351 # define soc_is_am33xx() is_am33xx()
352 # define soc_is_am335x() is_am335x()
353 #endif
354 
355 # if defined(CONFIG_ARCH_OMAP4)
356 # undef cpu_is_omap44xx
357 # undef cpu_is_omap443x
358 # undef cpu_is_omap446x
359 # undef cpu_is_omap447x
360 # define cpu_is_omap44xx() is_omap44xx()
361 # define cpu_is_omap443x() is_omap443x()
362 # define cpu_is_omap446x() is_omap446x()
363 # define cpu_is_omap447x() is_omap447x()
364 # endif
365 
366 # if defined(CONFIG_SOC_OMAP5)
367 # undef soc_is_omap54xx
368 # undef soc_is_omap543x
369 # define soc_is_omap54xx() is_omap54xx()
370 # define soc_is_omap543x() is_omap543x()
371 #endif
372 
373 /* Macros to detect if we have OMAP1 or OMAP2 */
374 #define cpu_class_is_omap1() (cpu_is_omap7xx() || cpu_is_omap15xx() || \
375  cpu_is_omap16xx())
376 #define cpu_class_is_omap2() (cpu_is_omap24xx() || cpu_is_omap34xx() || \
377  cpu_is_omap44xx() || soc_is_omap54xx() || \
378  soc_is_am33xx())
379 
380 /* Various silicon revisions for omap2 */
381 #define OMAP242X_CLASS 0x24200024
382 #define OMAP2420_REV_ES1_0 OMAP242X_CLASS
383 #define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8))
384 
385 #define OMAP243X_CLASS 0x24300024
386 #define OMAP2430_REV_ES1_0 OMAP243X_CLASS
387 
388 #define OMAP343X_CLASS 0x34300034
389 #define OMAP3430_REV_ES1_0 OMAP343X_CLASS
390 #define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8))
391 #define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8))
392 #define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8))
393 #define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8))
394 #define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8))
395 
396 #define OMAP363X_CLASS 0x36300034
397 #define OMAP3630_REV_ES1_0 OMAP363X_CLASS
398 #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8))
399 #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8))
400 
401 #define TI816X_CLASS 0x81600034
402 #define TI8168_REV_ES1_0 TI816X_CLASS
403 #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8))
404 
405 #define TI814X_CLASS 0x81400034
406 #define TI8148_REV_ES1_0 TI814X_CLASS
407 #define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8))
408 #define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8))
409 
410 #define AM35XX_CLASS 0x35170034
411 #define AM35XX_REV_ES1_0 AM35XX_CLASS
412 #define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8))
413 
414 #define AM335X_CLASS 0x33500033
415 #define AM335X_REV_ES1_0 AM335X_CLASS
416 
417 #define OMAP443X_CLASS 0x44300044
418 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8))
419 #define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8))
420 #define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8))
421 #define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8))
422 #define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8))
423 
424 #define OMAP446X_CLASS 0x44600044
425 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8))
426 #define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8))
427 
428 #define OMAP447X_CLASS 0x44700044
429 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8))
430 
431 #define OMAP54XX_CLASS 0x54000054
432 #define OMAP5430_REV_ES1_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
433 #define OMAP5432_REV_ES1_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
434 
435 void omap2xxx_check_revision(void);
436 void omap3xxx_check_revision(void);
437 void omap4xxx_check_revision(void);
438 void omap5xxx_check_revision(void);
439 void omap3xxx_check_features(void);
440 void ti81xx_check_features(void);
441 void omap4xxx_check_features(void);
442 
443 /*
444  * Runtime detection of OMAP3 features
445  *
446  * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
447  * family have OS-level control over the I/O chain clock. This is
448  * to avoid a window during which wakeups could potentially be lost
449  * during powerdomain transitions. If this bit is set, it
450  * indicates that the chip does support OS-level control of this
451  * feature.
452  */
453 extern u32 omap_features;
454 
455 #define OMAP3_HAS_L2CACHE BIT(0)
456 #define OMAP3_HAS_IVA BIT(1)
457 #define OMAP3_HAS_SGX BIT(2)
458 #define OMAP3_HAS_NEON BIT(3)
459 #define OMAP3_HAS_ISP BIT(4)
460 #define OMAP3_HAS_192MHZ_CLK BIT(5)
461 #define OMAP3_HAS_IO_WAKEUP BIT(6)
462 #define OMAP3_HAS_SDRC BIT(7)
463 #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
464 #define OMAP4_HAS_MPU_1GHZ BIT(9)
465 #define OMAP4_HAS_MPU_1_2GHZ BIT(10)
466 #define OMAP4_HAS_MPU_1_5GHZ BIT(11)
467 
468 
469 #define OMAP3_HAS_FEATURE(feat,flag) \
470 static inline unsigned int omap3_has_ ##feat(void) \
471 { \
472  return omap_features & OMAP3_HAS_ ##flag; \
473 } \
474 
475 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
476 OMAP3_HAS_FEATURE(sgx, SGX)
477 OMAP3_HAS_FEATURE(iva, IVA)
478 OMAP3_HAS_FEATURE(neon, NEON)
479 OMAP3_HAS_FEATURE(isp, ISP)
480 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
481 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
482 OMAP3_HAS_FEATURE(sdrc, SDRC)
483 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
484 
485 /*
486  * Runtime detection of OMAP4 features
487  */
488 #define OMAP4_HAS_FEATURE(feat, flag) \
489 static inline unsigned int omap4_has_ ##feat(void) \
490 { \
491  return omap_features & OMAP4_HAS_ ##flag; \
492 } \
493 
494 OMAP4_HAS_FEATURE(mpu_1ghz, MPU_1GHZ)
495 OMAP4_HAS_FEATURE(mpu_1_2ghz, MPU_1_2GHZ)
496 OMAP4_HAS_FEATURE(mpu_1_5ghz, MPU_1_5GHZ)
497 
498 #endif /* __ASSEMBLY__ */
499 #endif
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