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 * OMAP2+ is always defined as ARCH_MULTIPLATFORM in Kconfig
43 */
44 #undef MULTI_OMAP2
45 #define MULTI_OMAP2
46
47 /*
48 * Omap device type i.e. EMU/HS/TST/GP/BAD
49 */
50 #define OMAP2_DEVICE_TYPE_TEST 0
51 #define OMAP2_DEVICE_TYPE_EMU 1
52 #define OMAP2_DEVICE_TYPE_SEC 2
53 #define OMAP2_DEVICE_TYPE_GP 3
54 #define OMAP2_DEVICE_TYPE_BAD 4
55
56 int omap_type(void);
57
58 /*
59 * omap_rev bits:
60 * SoC id bits (0730, 1510, 1710, 2422...) [31:16]
61 * SoC revision (See _REV_ defined in cpu.h) [15:08]
62 * SoC class bits (15xx, 16xx, 24xx, 34xx...) [07:00]
63 */
64 unsigned int omap_rev(void);
65
soc_is_omap(void)66 static inline int soc_is_omap(void)
67 {
68 return omap_rev() != 0;
69 }
70
71 /*
72 * Get the SoC revision for OMAP devices
73 */
74 #define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff)
75
76 /*
77 * Macros to group OMAP into cpu classes.
78 * These can be used in most places.
79 * soc_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
80 * soc_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423
81 * soc_is_omap243x(): True for OMAP2430
82 * soc_is_omap343x(): True for OMAP3430
83 * soc_is_omap443x(): True for OMAP4430
84 * soc_is_omap446x(): True for OMAP4460
85 * soc_is_omap447x(): True for OMAP4470
86 * soc_is_omap543x(): True for OMAP5430, OMAP5432
87 */
88 #define GET_OMAP_CLASS (omap_rev() & 0xff)
89
90 #define IS_OMAP_CLASS(class, id) \
91 static inline int is_omap ##class (void) \
92 { \
93 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
94 }
95
96 #define GET_AM_CLASS ((omap_rev() >> 24) & 0xff)
97
98 #define IS_AM_CLASS(class, id) \
99 static inline int is_am ##class (void) \
100 { \
101 return (GET_AM_CLASS == (id)) ? 1 : 0; \
102 }
103
104 #define GET_TI_CLASS ((omap_rev() >> 24) & 0xff)
105
106 #define IS_TI_CLASS(class, id) \
107 static inline int is_ti ##class (void) \
108 { \
109 return (GET_TI_CLASS == (id)) ? 1 : 0; \
110 }
111
112 #define GET_DRA_CLASS ((omap_rev() >> 24) & 0xff)
113
114 #define IS_DRA_CLASS(class, id) \
115 static inline int is_dra ##class (void) \
116 { \
117 return (GET_DRA_CLASS == (id)) ? 1 : 0; \
118 }
119
120 #define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff)
121
122 #define IS_OMAP_SUBCLASS(subclass, id) \
123 static inline int is_omap ##subclass (void) \
124 { \
125 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
126 }
127
128 #define IS_TI_SUBCLASS(subclass, id) \
129 static inline int is_ti ##subclass (void) \
130 { \
131 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
132 }
133
134 #define IS_AM_SUBCLASS(subclass, id) \
135 static inline int is_am ##subclass (void) \
136 { \
137 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
138 }
139
140 #define IS_DRA_SUBCLASS(subclass, id) \
141 static inline int is_dra ##subclass (void) \
142 { \
143 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
144 }
145
146 #define GET_DRA_PACKAGE (omap_rev() & 0xff)
147
148 #define IS_DRA_SUBCLASS_PACKAGE(subclass, package, id) \
149 static inline int is_dra ##subclass ##_ ##package (void) \
150 { \
151 return (is_dra ##subclass () && GET_DRA_PACKAGE == id) ? 1 : 0; \
152 }
153
154 IS_OMAP_CLASS(24xx, 0x24)
155 IS_OMAP_CLASS(34xx, 0x34)
156 IS_OMAP_CLASS(44xx, 0x44)
157 IS_AM_CLASS(35xx, 0x35)
158 IS_OMAP_CLASS(54xx, 0x54)
159 IS_AM_CLASS(33xx, 0x33)
160 IS_AM_CLASS(43xx, 0x43)
161
162 IS_TI_CLASS(81xx, 0x81)
163 IS_DRA_CLASS(7xx, 0x7)
164
165 IS_OMAP_SUBCLASS(242x, 0x242)
166 IS_OMAP_SUBCLASS(243x, 0x243)
167 IS_OMAP_SUBCLASS(343x, 0x343)
168 IS_OMAP_SUBCLASS(363x, 0x363)
169 IS_OMAP_SUBCLASS(443x, 0x443)
170 IS_OMAP_SUBCLASS(446x, 0x446)
171 IS_OMAP_SUBCLASS(447x, 0x447)
172 IS_OMAP_SUBCLASS(543x, 0x543)
173
174 IS_TI_SUBCLASS(816x, 0x816)
175 IS_TI_SUBCLASS(814x, 0x814)
176 IS_AM_SUBCLASS(335x, 0x335)
177 IS_AM_SUBCLASS(437x, 0x437)
178 IS_DRA_SUBCLASS(76x, 0x76)
179 IS_DRA_SUBCLASS_PACKAGE(76x, abz, 2)
180 IS_DRA_SUBCLASS_PACKAGE(76x, acd, 3)
181 IS_DRA_SUBCLASS(75x, 0x75)
182 IS_DRA_SUBCLASS(72x, 0x72)
183
184 #define soc_is_ti81xx() 0
185 #define soc_is_ti816x() 0
186 #define soc_is_ti814x() 0
187 #define soc_is_am35xx() 0
188 #define soc_is_am33xx() 0
189 #define soc_is_am335x() 0
190 #define soc_is_am43xx() 0
191 #define soc_is_am437x() 0
192 #define soc_is_omap44xx() 0
193 #define soc_is_omap443x() 0
194 #define soc_is_omap446x() 0
195 #define soc_is_omap447x() 0
196 #define soc_is_omap54xx() 0
197 #define soc_is_omap543x() 0
198 #define soc_is_dra7xx() 0
199 #define soc_is_dra76x() 0
200 #define soc_is_dra74x() 0
201 #define soc_is_dra72x() 0
202
203 #if defined(CONFIG_ARCH_OMAP2)
204 # define soc_is_omap24xx() is_omap24xx()
205 #else
206 # define soc_is_omap24xx() 0
207 #endif
208 #if defined(CONFIG_SOC_OMAP2420)
209 # define soc_is_omap242x() is_omap242x()
210 #else
211 # define soc_is_omap242x() 0
212 #endif
213 #if defined(CONFIG_SOC_OMAP2430)
214 # define soc_is_omap243x() is_omap243x()
215 #else
216 # define soc_is_omap243x() 0
217 #endif
218 #if defined(CONFIG_ARCH_OMAP3)
219 # define soc_is_omap34xx() is_omap34xx()
220 # define soc_is_omap343x() is_omap343x()
221 #else
222 # define soc_is_omap34xx() 0
223 # define soc_is_omap343x() 0
224 #endif
225
226 /*
227 * Macros to detect individual cpu types.
228 * These are only rarely needed.
229 * soc_is_omap2420(): True for OMAP2420
230 * soc_is_omap2422(): True for OMAP2422
231 * soc_is_omap2423(): True for OMAP2423
232 * soc_is_omap2430(): True for OMAP2430
233 * soc_is_omap3430(): True for OMAP3430
234 */
235 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
236
237 #define IS_OMAP_TYPE(type, id) \
238 static inline int is_omap ##type (void) \
239 { \
240 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
241 }
242
243 IS_OMAP_TYPE(2420, 0x2420)
244 IS_OMAP_TYPE(2422, 0x2422)
245 IS_OMAP_TYPE(2423, 0x2423)
246 IS_OMAP_TYPE(2430, 0x2430)
247 IS_OMAP_TYPE(3430, 0x3430)
248
249 #define soc_is_omap2420() 0
250 #define soc_is_omap2422() 0
251 #define soc_is_omap2423() 0
252 #define soc_is_omap2430() 0
253 #define soc_is_omap3430() 0
254 #define soc_is_omap3630() 0
255 #define soc_is_omap5430() 0
256
257 /* These are needed for the common code */
258 #define soc_is_omap7xx() 0
259 #define soc_is_omap15xx() 0
260 #define soc_is_omap16xx() 0
261 #define soc_is_omap1510() 0
262 #define soc_is_omap1610() 0
263 #define soc_is_omap1611() 0
264 #define soc_is_omap1621() 0
265 #define soc_is_omap1710() 0
266 #define cpu_class_is_omap1() 0
267 #define cpu_class_is_omap2() 1
268
269 #if defined(CONFIG_ARCH_OMAP2)
270 # undef soc_is_omap2420
271 # undef soc_is_omap2422
272 # undef soc_is_omap2423
273 # undef soc_is_omap2430
274 # define soc_is_omap2420() is_omap2420()
275 # define soc_is_omap2422() is_omap2422()
276 # define soc_is_omap2423() is_omap2423()
277 # define soc_is_omap2430() is_omap2430()
278 #endif
279
280 #if defined(CONFIG_ARCH_OMAP3)
281 # undef soc_is_omap3430
282 # undef soc_is_ti81xx
283 # undef soc_is_ti816x
284 # undef soc_is_ti814x
285 # undef soc_is_am35xx
286 # define soc_is_omap3430() is_omap3430()
287 # undef soc_is_omap3630
288 # define soc_is_omap3630() is_omap363x()
289 # define soc_is_ti81xx() is_ti81xx()
290 # define soc_is_ti816x() is_ti816x()
291 # define soc_is_ti814x() is_ti814x()
292 # define soc_is_am35xx() is_am35xx()
293 #endif
294
295 # if defined(CONFIG_SOC_AM33XX)
296 # undef soc_is_am33xx
297 # undef soc_is_am335x
298 # define soc_is_am33xx() is_am33xx()
299 # define soc_is_am335x() is_am335x()
300 #endif
301
302 #ifdef CONFIG_SOC_AM43XX
303 # undef soc_is_am43xx
304 # undef soc_is_am437x
305 # define soc_is_am43xx() is_am43xx()
306 # define soc_is_am437x() is_am437x()
307 #endif
308
309 # if defined(CONFIG_ARCH_OMAP4)
310 # undef soc_is_omap44xx
311 # undef soc_is_omap443x
312 # undef soc_is_omap446x
313 # undef soc_is_omap447x
314 # define soc_is_omap44xx() is_omap44xx()
315 # define soc_is_omap443x() is_omap443x()
316 # define soc_is_omap446x() is_omap446x()
317 # define soc_is_omap447x() is_omap447x()
318 # endif
319
320 # if defined(CONFIG_SOC_OMAP5)
321 # undef soc_is_omap54xx
322 # undef soc_is_omap543x
323 # define soc_is_omap54xx() is_omap54xx()
324 # define soc_is_omap543x() is_omap543x()
325 #endif
326
327 #if defined(CONFIG_SOC_DRA7XX)
328 #undef soc_is_dra7xx
329 #undef soc_is_dra76x
330 #undef soc_is_dra76x_abz
331 #undef soc_is_dra76x_acd
332 #undef soc_is_dra74x
333 #undef soc_is_dra72x
334 #define soc_is_dra7xx() is_dra7xx()
335 #define soc_is_dra76x() is_dra76x()
336 #define soc_is_dra76x_abz() is_dra76x_abz()
337 #define soc_is_dra76x_acd() is_dra76x_acd()
338 #define soc_is_dra74x() is_dra75x()
339 #define soc_is_dra72x() is_dra72x()
340 #endif
341
342 /* Various silicon revisions for omap2 */
343 #define OMAP242X_CLASS 0x24200024
344 #define OMAP2420_REV_ES1_0 OMAP242X_CLASS
345 #define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8))
346
347 #define OMAP243X_CLASS 0x24300024
348 #define OMAP2430_REV_ES1_0 OMAP243X_CLASS
349
350 #define OMAP343X_CLASS 0x34300034
351 #define OMAP3430_REV_ES1_0 OMAP343X_CLASS
352 #define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8))
353 #define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8))
354 #define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8))
355 #define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8))
356 #define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8))
357
358 #define OMAP363X_CLASS 0x36300034
359 #define OMAP3630_REV_ES1_0 OMAP363X_CLASS
360 #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8))
361 #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8))
362
363 #define TI816X_CLASS 0x81600081
364 #define TI8168_REV_ES1_0 TI816X_CLASS
365 #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8))
366 #define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8))
367 #define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8))
368
369 #define TI814X_CLASS 0x81400081
370 #define TI8148_REV_ES1_0 TI814X_CLASS
371 #define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8))
372 #define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8))
373
374 #define AM35XX_CLASS 0x35170034
375 #define AM35XX_REV_ES1_0 AM35XX_CLASS
376 #define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8))
377
378 #define AM335X_CLASS 0x33500033
379 #define AM335X_REV_ES1_0 AM335X_CLASS
380 #define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8))
381 #define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8))
382
383 #define AM437X_CLASS 0x43700000
384 #define AM437X_REV_ES1_0 (AM437X_CLASS | (0x10 << 8))
385 #define AM437X_REV_ES1_1 (AM437X_CLASS | (0x11 << 8))
386 #define AM437X_REV_ES1_2 (AM437X_CLASS | (0x12 << 8))
387
388 #define OMAP443X_CLASS 0x44300044
389 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8))
390 #define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8))
391 #define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8))
392 #define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8))
393 #define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8))
394
395 #define OMAP446X_CLASS 0x44600044
396 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8))
397 #define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8))
398
399 #define OMAP447X_CLASS 0x44700044
400 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8))
401
402 #define OMAP54XX_CLASS 0x54000054
403 #define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
404 #define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
405
406 #define DRA7XX_CLASS 0x07000000
407 #define DRA762_REV_ES1_0 (DRA7XX_CLASS | (0x62 << 16) | (0x10 << 8))
408 #define DRA762_ABZ_REV_ES1_0 (DRA762_REV_ES1_0 | (2 << 0))
409 #define DRA762_ACD_REV_ES1_0 (DRA762_REV_ES1_0 | (3 << 0))
410 #define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
411 #define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
412 #define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))
413 #define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
414 #define DRA722_REV_ES2_0 (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8))
415 #define DRA722_REV_ES2_1 (DRA7XX_CLASS | (0x22 << 16) | (0x21 << 8))
416
417 void omap2xxx_check_revision(void);
418 void omap3xxx_check_revision(void);
419 void omap4xxx_check_revision(void);
420 void omap5xxx_check_revision(void);
421 void dra7xxx_check_revision(void);
422 void omap3xxx_check_features(void);
423 void ti81xx_check_features(void);
424 void am33xx_check_features(void);
425 void omap4xxx_check_features(void);
426
427 /*
428 * Runtime detection of OMAP3 features
429 *
430 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
431 * family have OS-level control over the I/O chain clock. This is
432 * to avoid a window during which wakeups could potentially be lost
433 * during powerdomain transitions. If this bit is set, it
434 * indicates that the chip does support OS-level control of this
435 * feature.
436 */
437 extern u32 omap_features;
438
439 #define OMAP3_HAS_L2CACHE BIT(0)
440 #define OMAP3_HAS_IVA BIT(1)
441 #define OMAP3_HAS_SGX BIT(2)
442 #define OMAP3_HAS_NEON BIT(3)
443 #define OMAP3_HAS_ISP BIT(4)
444 #define OMAP3_HAS_192MHZ_CLK BIT(5)
445 #define OMAP3_HAS_IO_WAKEUP BIT(6)
446 #define OMAP3_HAS_SDRC BIT(7)
447 #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
448 #define OMAP4_HAS_PERF_SILICON BIT(9)
449
450
451 #define OMAP3_HAS_FEATURE(feat,flag) \
452 static inline unsigned int omap3_has_ ##feat(void) \
453 { \
454 return omap_features & OMAP3_HAS_ ##flag; \
455 } \
456
457 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
458 OMAP3_HAS_FEATURE(sgx, SGX)
459 OMAP3_HAS_FEATURE(iva, IVA)
460 OMAP3_HAS_FEATURE(neon, NEON)
461 OMAP3_HAS_FEATURE(isp, ISP)
462 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
463 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
464 OMAP3_HAS_FEATURE(sdrc, SDRC)
465 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
466
467 /*
468 * Runtime detection of OMAP4 features
469 */
470 #define OMAP4_HAS_FEATURE(feat, flag) \
471 static inline unsigned int omap4_has_ ##feat(void) \
472 { \
473 return omap_features & OMAP4_HAS_ ##flag; \
474 } \
475
476 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
477
478 /*
479 * We need to make sure omap initcalls don't run when
480 * multiplatform kernels are booted on other SoCs.
481 */
482 #define omap_initcall(level, fn) \
483 static int __init __used __##fn(void) \
484 { \
485 if (!soc_is_omap()) \
486 return 0; \
487 return fn(); \
488 } \
489 level(__##fn);
490
491 #define omap_early_initcall(fn) omap_initcall(early_initcall, fn)
492 #define omap_core_initcall(fn) omap_initcall(core_initcall, fn)
493 #define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn)
494 #define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn)
495 #define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn)
496 #define omap_device_initcall(fn) omap_initcall(device_initcall, fn)
497 #define omap_late_initcall(fn) omap_initcall(late_initcall, fn)
498 #define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn)
499
500 /* Legacy defines, these can be removed when users are removed */
501 #define cpu_is_omap2420() soc_is_omap2420()
502 #define cpu_is_omap2422() soc_is_omap2422()
503 #define cpu_is_omap242x() soc_is_omap242x()
504 #define cpu_is_omap2430() soc_is_omap2430()
505 #define cpu_is_omap243x() soc_is_omap243x()
506 #define cpu_is_omap24xx() soc_is_omap24xx()
507 #define cpu_is_omap3430() soc_is_omap3430()
508 #define cpu_is_omap343x() soc_is_omap343x()
509 #define cpu_is_omap34xx() soc_is_omap34xx()
510 #define cpu_is_omap3630() soc_is_omap3630()
511 #define cpu_is_omap443x() soc_is_omap443x()
512 #define cpu_is_omap446x() soc_is_omap446x()
513 #define cpu_is_omap44xx() soc_is_omap44xx()
514 #define cpu_is_ti814x() soc_is_ti814x()
515 #define cpu_is_ti816x() soc_is_ti816x()
516 #define cpu_is_ti81xx() soc_is_ti81xx()
517
518 #endif /* __ASSEMBLY__ */
519
