xref: /openbmc/linux/arch/arm/mach-omap2/soc.h (revision d2999e1b)
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 
128 int 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  */
136 unsigned int omap_rev(void);
137 
138 static 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)			\
163 static 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)				\
171 static 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)			\
179 static 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)			\
187 static inline int is_omap ##subclass (void)		\
188 {							\
189 	return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;	\
190 }
191 
192 #define IS_TI_SUBCLASS(subclass, id)			\
193 static inline int is_ti ##subclass (void)		\
194 {							\
195 	return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;	\
196 }
197 
198 #define IS_AM_SUBCLASS(subclass, id)			\
199 static inline int is_am ##subclass (void)		\
200 {							\
201 	return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;	\
202 }
203 
204 IS_OMAP_CLASS(24xx, 0x24)
205 IS_OMAP_CLASS(34xx, 0x34)
206 IS_OMAP_CLASS(44xx, 0x44)
207 IS_AM_CLASS(35xx, 0x35)
208 IS_OMAP_CLASS(54xx, 0x54)
209 IS_AM_CLASS(33xx, 0x33)
210 IS_AM_CLASS(43xx, 0x43)
211 
212 IS_TI_CLASS(81xx, 0x81)
213 
214 IS_OMAP_SUBCLASS(242x, 0x242)
215 IS_OMAP_SUBCLASS(243x, 0x243)
216 IS_OMAP_SUBCLASS(343x, 0x343)
217 IS_OMAP_SUBCLASS(363x, 0x363)
218 IS_OMAP_SUBCLASS(443x, 0x443)
219 IS_OMAP_SUBCLASS(446x, 0x446)
220 IS_OMAP_SUBCLASS(447x, 0x447)
221 IS_OMAP_SUBCLASS(543x, 0x543)
222 
223 IS_TI_SUBCLASS(816x, 0x816)
224 IS_TI_SUBCLASS(814x, 0x814)
225 IS_AM_SUBCLASS(335x, 0x335)
226 IS_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 
249 #if defined(MULTI_OMAP2)
250 # if defined(CONFIG_ARCH_OMAP2)
251 #  undef  cpu_is_omap24xx
252 #  define cpu_is_omap24xx()		is_omap24xx()
253 # endif
254 # if defined (CONFIG_SOC_OMAP2420)
255 #  undef  cpu_is_omap242x
256 #  define cpu_is_omap242x()		is_omap242x()
257 # endif
258 # if defined (CONFIG_SOC_OMAP2430)
259 #  undef  cpu_is_omap243x
260 #  define cpu_is_omap243x()		is_omap243x()
261 # endif
262 # if defined(CONFIG_ARCH_OMAP3)
263 #  undef  cpu_is_omap34xx
264 #  undef  cpu_is_omap343x
265 #  define cpu_is_omap34xx()		is_omap34xx()
266 #  define cpu_is_omap343x()		is_omap343x()
267 # endif
268 #else
269 # if defined(CONFIG_ARCH_OMAP2)
270 #  undef  cpu_is_omap24xx
271 #  define cpu_is_omap24xx()		1
272 # endif
273 # if defined(CONFIG_SOC_OMAP2420)
274 #  undef  cpu_is_omap242x
275 #  define cpu_is_omap242x()		1
276 # endif
277 # if defined(CONFIG_SOC_OMAP2430)
278 #  undef  cpu_is_omap243x
279 #  define cpu_is_omap243x()		1
280 # endif
281 # if defined(CONFIG_ARCH_OMAP3)
282 #  undef  cpu_is_omap34xx
283 #  define cpu_is_omap34xx()		1
284 # endif
285 # if defined(CONFIG_SOC_OMAP3430)
286 #  undef  cpu_is_omap343x
287 #  define cpu_is_omap343x()		1
288 # endif
289 #endif
290 
291 /*
292  * Macros to detect individual cpu types.
293  * These are only rarely needed.
294  * cpu_is_omap2420():	True for OMAP2420
295  * cpu_is_omap2422():	True for OMAP2422
296  * cpu_is_omap2423():	True for OMAP2423
297  * cpu_is_omap2430():	True for OMAP2430
298  * cpu_is_omap3430():	True for OMAP3430
299  */
300 #define GET_OMAP_TYPE	((omap_rev() >> 16) & 0xffff)
301 
302 #define IS_OMAP_TYPE(type, id)				\
303 static inline int is_omap ##type (void)			\
304 {							\
305 	return (GET_OMAP_TYPE == (id)) ? 1 : 0;		\
306 }
307 
308 IS_OMAP_TYPE(2420, 0x2420)
309 IS_OMAP_TYPE(2422, 0x2422)
310 IS_OMAP_TYPE(2423, 0x2423)
311 IS_OMAP_TYPE(2430, 0x2430)
312 IS_OMAP_TYPE(3430, 0x3430)
313 
314 #define cpu_is_omap2420()		0
315 #define cpu_is_omap2422()		0
316 #define cpu_is_omap2423()		0
317 #define cpu_is_omap2430()		0
318 #define cpu_is_omap3430()		0
319 #define cpu_is_omap3630()		0
320 #define soc_is_omap5430()		0
321 
322 /* These are needed for the common code */
323 #ifdef CONFIG_ARCH_OMAP2PLUS
324 #define cpu_is_omap7xx()		0
325 #define cpu_is_omap15xx()		0
326 #define cpu_is_omap16xx()		0
327 #define cpu_is_omap1510()		0
328 #define cpu_is_omap1610()		0
329 #define cpu_is_omap1611()		0
330 #define cpu_is_omap1621()		0
331 #define cpu_is_omap1710()		0
332 #define cpu_class_is_omap1()		0
333 #define cpu_class_is_omap2()		1
334 #endif
335 
336 #if defined(CONFIG_ARCH_OMAP2)
337 # undef  cpu_is_omap2420
338 # undef  cpu_is_omap2422
339 # undef  cpu_is_omap2423
340 # undef  cpu_is_omap2430
341 # define cpu_is_omap2420()		is_omap2420()
342 # define cpu_is_omap2422()		is_omap2422()
343 # define cpu_is_omap2423()		is_omap2423()
344 # define cpu_is_omap2430()		is_omap2430()
345 #endif
346 
347 #if defined(CONFIG_ARCH_OMAP3)
348 # undef cpu_is_omap3430
349 # undef cpu_is_ti81xx
350 # undef cpu_is_ti816x
351 # undef cpu_is_ti814x
352 # undef soc_is_am35xx
353 # define cpu_is_omap3430()		is_omap3430()
354 # undef cpu_is_omap3630
355 # define cpu_is_omap3630()		is_omap363x()
356 # define cpu_is_ti81xx()		is_ti81xx()
357 # define cpu_is_ti816x()		is_ti816x()
358 # define cpu_is_ti814x()		is_ti814x()
359 # define soc_is_am35xx()		is_am35xx()
360 #endif
361 
362 # if defined(CONFIG_SOC_AM33XX)
363 # undef soc_is_am33xx
364 # undef soc_is_am335x
365 # define soc_is_am33xx()		is_am33xx()
366 # define soc_is_am335x()		is_am335x()
367 #endif
368 
369 #ifdef	CONFIG_SOC_AM43XX
370 # undef soc_is_am43xx
371 # undef soc_is_am437x
372 # define soc_is_am43xx()		is_am43xx()
373 # define soc_is_am437x()		is_am437x()
374 #endif
375 
376 # if defined(CONFIG_ARCH_OMAP4)
377 # undef cpu_is_omap44xx
378 # undef cpu_is_omap443x
379 # undef cpu_is_omap446x
380 # undef cpu_is_omap447x
381 # define cpu_is_omap44xx()		is_omap44xx()
382 # define cpu_is_omap443x()		is_omap443x()
383 # define cpu_is_omap446x()		is_omap446x()
384 # define cpu_is_omap447x()		is_omap447x()
385 # endif
386 
387 # if defined(CONFIG_SOC_OMAP5)
388 # undef soc_is_omap54xx
389 # undef soc_is_omap543x
390 # define soc_is_omap54xx()		is_omap54xx()
391 # define soc_is_omap543x()		is_omap543x()
392 #endif
393 
394 #if defined(CONFIG_SOC_DRA7XX)
395 #undef soc_is_dra7xx
396 #define soc_is_dra7xx()	(of_machine_is_compatible("ti,dra7"))
397 #endif
398 
399 /* Various silicon revisions for omap2 */
400 #define OMAP242X_CLASS		0x24200024
401 #define OMAP2420_REV_ES1_0	OMAP242X_CLASS
402 #define OMAP2420_REV_ES2_0	(OMAP242X_CLASS | (0x1 << 8))
403 
404 #define OMAP243X_CLASS		0x24300024
405 #define OMAP2430_REV_ES1_0	OMAP243X_CLASS
406 
407 #define OMAP343X_CLASS		0x34300034
408 #define OMAP3430_REV_ES1_0	OMAP343X_CLASS
409 #define OMAP3430_REV_ES2_0	(OMAP343X_CLASS | (0x1 << 8))
410 #define OMAP3430_REV_ES2_1	(OMAP343X_CLASS | (0x2 << 8))
411 #define OMAP3430_REV_ES3_0	(OMAP343X_CLASS | (0x3 << 8))
412 #define OMAP3430_REV_ES3_1	(OMAP343X_CLASS | (0x4 << 8))
413 #define OMAP3430_REV_ES3_1_2	(OMAP343X_CLASS | (0x5 << 8))
414 
415 #define OMAP363X_CLASS		0x36300034
416 #define OMAP3630_REV_ES1_0	OMAP363X_CLASS
417 #define OMAP3630_REV_ES1_1	(OMAP363X_CLASS | (0x1 << 8))
418 #define OMAP3630_REV_ES1_2	(OMAP363X_CLASS | (0x2 << 8))
419 
420 #define TI816X_CLASS		0x81600034
421 #define TI8168_REV_ES1_0	TI816X_CLASS
422 #define TI8168_REV_ES1_1	(TI816X_CLASS | (0x1 << 8))
423 #define TI8168_REV_ES2_0	(TI816X_CLASS | (0x2 << 8))
424 #define TI8168_REV_ES2_1	(TI816X_CLASS | (0x3 << 8))
425 
426 #define TI814X_CLASS		0x81400034
427 #define TI8148_REV_ES1_0	TI814X_CLASS
428 #define TI8148_REV_ES2_0	(TI814X_CLASS | (0x1 << 8))
429 #define TI8148_REV_ES2_1	(TI814X_CLASS | (0x2 << 8))
430 
431 #define AM35XX_CLASS		0x35170034
432 #define AM35XX_REV_ES1_0	AM35XX_CLASS
433 #define AM35XX_REV_ES1_1	(AM35XX_CLASS | (0x1 << 8))
434 
435 #define AM335X_CLASS		0x33500033
436 #define AM335X_REV_ES1_0	AM335X_CLASS
437 #define AM335X_REV_ES2_0	(AM335X_CLASS | (0x1 << 8))
438 #define AM335X_REV_ES2_1	(AM335X_CLASS | (0x2 << 8))
439 
440 #define AM437X_CLASS		0x43700000
441 #define AM437X_REV_ES1_0	(AM437X_CLASS | (0x10 << 8))
442 #define AM437X_REV_ES1_1	(AM437X_CLASS | (0x11 << 8))
443 
444 #define OMAP443X_CLASS		0x44300044
445 #define OMAP4430_REV_ES1_0	(OMAP443X_CLASS | (0x10 << 8))
446 #define OMAP4430_REV_ES2_0	(OMAP443X_CLASS | (0x20 << 8))
447 #define OMAP4430_REV_ES2_1	(OMAP443X_CLASS | (0x21 << 8))
448 #define OMAP4430_REV_ES2_2	(OMAP443X_CLASS | (0x22 << 8))
449 #define OMAP4430_REV_ES2_3	(OMAP443X_CLASS | (0x23 << 8))
450 
451 #define OMAP446X_CLASS		0x44600044
452 #define OMAP4460_REV_ES1_0	(OMAP446X_CLASS | (0x10 << 8))
453 #define OMAP4460_REV_ES1_1	(OMAP446X_CLASS | (0x11 << 8))
454 
455 #define OMAP447X_CLASS		0x44700044
456 #define OMAP4470_REV_ES1_0	(OMAP447X_CLASS | (0x10 << 8))
457 
458 #define OMAP54XX_CLASS		0x54000054
459 #define OMAP5430_REV_ES2_0	(OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
460 #define OMAP5432_REV_ES2_0	(OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
461 
462 #define DRA7XX_CLASS		0x07000000
463 #define DRA752_REV_ES1_0	(DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
464 #define DRA752_REV_ES1_1	(DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
465 
466 void omap2xxx_check_revision(void);
467 void omap3xxx_check_revision(void);
468 void omap4xxx_check_revision(void);
469 void omap5xxx_check_revision(void);
470 void dra7xxx_check_revision(void);
471 void omap3xxx_check_features(void);
472 void ti81xx_check_features(void);
473 void am33xx_check_features(void);
474 void omap4xxx_check_features(void);
475 
476 /*
477  * Runtime detection of OMAP3 features
478  *
479  * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
480  *    family have OS-level control over the I/O chain clock.  This is
481  *    to avoid a window during which wakeups could potentially be lost
482  *    during powerdomain transitions.  If this bit is set, it
483  *    indicates that the chip does support OS-level control of this
484  *    feature.
485  */
486 extern u32 omap_features;
487 
488 #define OMAP3_HAS_L2CACHE		BIT(0)
489 #define OMAP3_HAS_IVA			BIT(1)
490 #define OMAP3_HAS_SGX			BIT(2)
491 #define OMAP3_HAS_NEON			BIT(3)
492 #define OMAP3_HAS_ISP			BIT(4)
493 #define OMAP3_HAS_192MHZ_CLK		BIT(5)
494 #define OMAP3_HAS_IO_WAKEUP		BIT(6)
495 #define OMAP3_HAS_SDRC			BIT(7)
496 #define OMAP3_HAS_IO_CHAIN_CTRL		BIT(8)
497 #define OMAP4_HAS_PERF_SILICON		BIT(9)
498 
499 
500 #define OMAP3_HAS_FEATURE(feat,flag)			\
501 static inline unsigned int omap3_has_ ##feat(void)	\
502 {							\
503 	return omap_features & OMAP3_HAS_ ##flag;	\
504 }							\
505 
506 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
507 OMAP3_HAS_FEATURE(sgx, SGX)
508 OMAP3_HAS_FEATURE(iva, IVA)
509 OMAP3_HAS_FEATURE(neon, NEON)
510 OMAP3_HAS_FEATURE(isp, ISP)
511 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
512 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
513 OMAP3_HAS_FEATURE(sdrc, SDRC)
514 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
515 
516 /*
517  * Runtime detection of OMAP4 features
518  */
519 #define OMAP4_HAS_FEATURE(feat, flag)			\
520 static inline unsigned int omap4_has_ ##feat(void)	\
521 {							\
522 	return omap_features & OMAP4_HAS_ ##flag;	\
523 }							\
524 
525 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
526 
527 /*
528  * We need to make sure omap initcalls don't run when
529  * multiplatform kernels are booted on other SoCs.
530  */
531 #define omap_initcall(level, fn)		\
532 static int __init __used __##fn(void)		\
533 {						\
534 	if (!soc_is_omap())			\
535 		return 0;			\
536 	return fn();				\
537 }						\
538 level(__##fn);
539 
540 #define omap_early_initcall(fn)		omap_initcall(early_initcall, fn)
541 #define omap_core_initcall(fn)		omap_initcall(core_initcall, fn)
542 #define omap_postcore_initcall(fn)	omap_initcall(postcore_initcall, fn)
543 #define omap_arch_initcall(fn)		omap_initcall(arch_initcall, fn)
544 #define omap_subsys_initcall(fn)	omap_initcall(subsys_initcall, fn)
545 #define omap_device_initcall(fn)	omap_initcall(device_initcall, fn)
546 #define omap_late_initcall(fn)		omap_initcall(late_initcall, fn)
547 #define omap_late_initcall_sync(fn)	omap_initcall(late_initcall_sync, fn)
548 
549 #endif	/* __ASSEMBLY__ */
550 
551