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 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 */
27
28 #include "omap24xx.h"
29 #include "omap34xx.h"
30 #include "omap44xx.h"
31 #include "ti81xx.h"
32 #include "am33xx.h"
33 #include "omap54xx.h"
34
35 #ifndef __ASSEMBLY__
36
37 #include <linux/bitops.h>
38
39 /*
40 * Test if multicore OMAP support is needed
41 */
42 #undef MULTI_OMAP2
43 #undef OMAP_NAME
44
45 #ifdef CONFIG_ARCH_MULTIPLATFORM
46 #define MULTI_OMAP2
47 #endif
48 #ifdef CONFIG_SOC_OMAP2420
49 # ifdef OMAP_NAME
50 # undef MULTI_OMAP2
51 # define MULTI_OMAP2
52 # else
53 # define OMAP_NAME omap2420
54 # endif
55 #endif
56 #ifdef CONFIG_SOC_OMAP2430
57 # ifdef OMAP_NAME
58 # undef MULTI_OMAP2
59 # define MULTI_OMAP2
60 # else
61 # define OMAP_NAME omap2430
62 # endif
63 #endif
64 #ifdef CONFIG_ARCH_OMAP3
65 # ifdef OMAP_NAME
66 # undef MULTI_OMAP2
67 # define MULTI_OMAP2
68 # else
69 # define OMAP_NAME omap3
70 # endif
71 #endif
72 #ifdef CONFIG_ARCH_OMAP4
73 # ifdef OMAP_NAME
74 # undef MULTI_OMAP2
75 # define MULTI_OMAP2
76 # else
77 # define OMAP_NAME omap4
78 # endif
79 #endif
80
81 #ifdef CONFIG_SOC_OMAP5
82 # ifdef OMAP_NAME
83 # undef MULTI_OMAP2
84 # define MULTI_OMAP2
85 # else
86 # define OMAP_NAME omap5
87 # endif
88 #endif
89
90 #ifdef CONFIG_SOC_AM33XX
91 # ifdef OMAP_NAME
92 # undef MULTI_OMAP2
93 # define MULTI_OMAP2
94 # else
95 # define OMAP_NAME am33xx
96 # endif
97 #endif
98
99 /*
100 * Omap device type i.e. EMU/HS/TST/GP/BAD
101 */
102 #define OMAP2_DEVICE_TYPE_TEST 0
103 #define OMAP2_DEVICE_TYPE_EMU 1
104 #define OMAP2_DEVICE_TYPE_SEC 2
105 #define OMAP2_DEVICE_TYPE_GP 3
106 #define OMAP2_DEVICE_TYPE_BAD 4
107
108 int omap_type(void);
109
110 /*
111 * omap_rev bits:
112 * CPU id bits (0730, 1510, 1710, 2422...) [31:16]
113 * CPU revision (See _REV_ defined in cpu.h) [15:08]
114 * CPU class bits (15xx, 16xx, 24xx, 34xx...) [07:00]
115 */
116 unsigned int omap_rev(void);
117
soc_is_omap(void)118 static inline int soc_is_omap(void)
119 {
120 return omap_rev() != 0;
121 }
122
123 /*
124 * Get the CPU revision for OMAP devices
125 */
126 #define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff)
127
128 /*
129 * Macros to group OMAP into cpu classes.
130 * These can be used in most places.
131 * cpu_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
132 * cpu_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423
133 * cpu_is_omap243x(): True for OMAP2430
134 * cpu_is_omap343x(): True for OMAP3430
135 * cpu_is_omap443x(): True for OMAP4430
136 * cpu_is_omap446x(): True for OMAP4460
137 * cpu_is_omap447x(): True for OMAP4470
138 * soc_is_omap543x(): True for OMAP5430, OMAP5432
139 */
140 #define GET_OMAP_CLASS (omap_rev() & 0xff)
141
142 #define IS_OMAP_CLASS(class, id) \
143 static inline int is_omap ##class (void) \
144 { \
145 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
146 }
147
148 #define GET_AM_CLASS ((omap_rev() >> 24) & 0xff)
149
150 #define IS_AM_CLASS(class, id) \
151 static inline int is_am ##class (void) \
152 { \
153 return (GET_AM_CLASS == (id)) ? 1 : 0; \
154 }
155
156 #define GET_TI_CLASS ((omap_rev() >> 24) & 0xff)
157
158 #define IS_TI_CLASS(class, id) \
159 static inline int is_ti ##class (void) \
160 { \
161 return (GET_TI_CLASS == (id)) ? 1 : 0; \
162 }
163
164 #define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff)
165
166 #define IS_OMAP_SUBCLASS(subclass, id) \
167 static inline int is_omap ##subclass (void) \
168 { \
169 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
170 }
171
172 #define IS_TI_SUBCLASS(subclass, id) \
173 static inline int is_ti ##subclass (void) \
174 { \
175 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
176 }
177
178 #define IS_AM_SUBCLASS(subclass, id) \
179 static inline int is_am ##subclass (void) \
180 { \
181 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
182 }
183
184 IS_OMAP_CLASS(24xx, 0x24)
185 IS_OMAP_CLASS(34xx, 0x34)
186 IS_OMAP_CLASS(44xx, 0x44)
187 IS_AM_CLASS(35xx, 0x35)
188 IS_OMAP_CLASS(54xx, 0x54)
189 IS_AM_CLASS(33xx, 0x33)
190
191 IS_TI_CLASS(81xx, 0x81)
192
193 IS_OMAP_SUBCLASS(242x, 0x242)
194 IS_OMAP_SUBCLASS(243x, 0x243)
195 IS_OMAP_SUBCLASS(343x, 0x343)
196 IS_OMAP_SUBCLASS(363x, 0x363)
197 IS_OMAP_SUBCLASS(443x, 0x443)
198 IS_OMAP_SUBCLASS(446x, 0x446)
199 IS_OMAP_SUBCLASS(447x, 0x447)
200 IS_OMAP_SUBCLASS(543x, 0x543)
201
202 IS_TI_SUBCLASS(816x, 0x816)
203 IS_TI_SUBCLASS(814x, 0x814)
204 IS_AM_SUBCLASS(335x, 0x335)
205
206 #define cpu_is_omap24xx() 0
207 #define cpu_is_omap242x() 0
208 #define cpu_is_omap243x() 0
209 #define cpu_is_omap34xx() 0
210 #define cpu_is_omap343x() 0
211 #define cpu_is_ti81xx() 0
212 #define cpu_is_ti816x() 0
213 #define cpu_is_ti814x() 0
214 #define soc_is_am35xx() 0
215 #define soc_is_am33xx() 0
216 #define soc_is_am335x() 0
217 #define cpu_is_omap44xx() 0
218 #define cpu_is_omap443x() 0
219 #define cpu_is_omap446x() 0
220 #define cpu_is_omap447x() 0
221 #define soc_is_omap54xx() 0
222 #define soc_is_omap543x() 0
223
224 #if defined(MULTI_OMAP2)
225 # if defined(CONFIG_ARCH_OMAP2)
226 # undef cpu_is_omap24xx
227 # define cpu_is_omap24xx() is_omap24xx()
228 # endif
229 # if defined (CONFIG_SOC_OMAP2420)
230 # undef cpu_is_omap242x
231 # define cpu_is_omap242x() is_omap242x()
232 # endif
233 # if defined (CONFIG_SOC_OMAP2430)
234 # undef cpu_is_omap243x
235 # define cpu_is_omap243x() is_omap243x()
236 # endif
237 # if defined(CONFIG_ARCH_OMAP3)
238 # undef cpu_is_omap34xx
239 # undef cpu_is_omap343x
240 # define cpu_is_omap34xx() is_omap34xx()
241 # define cpu_is_omap343x() is_omap343x()
242 # endif
243 #else
244 # if defined(CONFIG_ARCH_OMAP2)
245 # undef cpu_is_omap24xx
246 # define cpu_is_omap24xx() 1
247 # endif
248 # if defined(CONFIG_SOC_OMAP2420)
249 # undef cpu_is_omap242x
250 # define cpu_is_omap242x() 1
251 # endif
252 # if defined(CONFIG_SOC_OMAP2430)
253 # undef cpu_is_omap243x
254 # define cpu_is_omap243x() 1
255 # endif
256 # if defined(CONFIG_ARCH_OMAP3)
257 # undef cpu_is_omap34xx
258 # define cpu_is_omap34xx() 1
259 # endif
260 # if defined(CONFIG_SOC_OMAP3430)
261 # undef cpu_is_omap343x
262 # define cpu_is_omap343x() 1
263 # endif
264 #endif
265
266 /*
267 * Macros to detect individual cpu types.
268 * These are only rarely needed.
269 * cpu_is_omap2420(): True for OMAP2420
270 * cpu_is_omap2422(): True for OMAP2422
271 * cpu_is_omap2423(): True for OMAP2423
272 * cpu_is_omap2430(): True for OMAP2430
273 * cpu_is_omap3430(): True for OMAP3430
274 */
275 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
276
277 #define IS_OMAP_TYPE(type, id) \
278 static inline int is_omap ##type (void) \
279 { \
280 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
281 }
282
283 IS_OMAP_TYPE(2420, 0x2420)
284 IS_OMAP_TYPE(2422, 0x2422)
285 IS_OMAP_TYPE(2423, 0x2423)
286 IS_OMAP_TYPE(2430, 0x2430)
287 IS_OMAP_TYPE(3430, 0x3430)
288
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 /* These are needed for the common code */
298 #ifdef CONFIG_ARCH_OMAP2PLUS
299 #define cpu_is_omap7xx() 0
300 #define cpu_is_omap15xx() 0
301 #define cpu_is_omap16xx() 0
302 #define cpu_is_omap1510() 0
303 #define cpu_is_omap1610() 0
304 #define cpu_is_omap1611() 0
305 #define cpu_is_omap1621() 0
306 #define cpu_is_omap1710() 0
307 #define cpu_class_is_omap1() 0
308 #define cpu_class_is_omap2() 1
309 #endif
310
311 #if defined(CONFIG_ARCH_OMAP2)
312 # undef cpu_is_omap2420
313 # undef cpu_is_omap2422
314 # undef cpu_is_omap2423
315 # undef cpu_is_omap2430
316 # define cpu_is_omap2420() is_omap2420()
317 # define cpu_is_omap2422() is_omap2422()
318 # define cpu_is_omap2423() is_omap2423()
319 # define cpu_is_omap2430() is_omap2430()
320 #endif
321
322 #if defined(CONFIG_ARCH_OMAP3)
323 # undef cpu_is_omap3430
324 # undef cpu_is_ti81xx
325 # undef cpu_is_ti816x
326 # undef cpu_is_ti814x
327 # undef soc_is_am35xx
328 # define cpu_is_omap3430() is_omap3430()
329 # undef cpu_is_omap3630
330 # define cpu_is_omap3630() is_omap363x()
331 # define cpu_is_ti81xx() is_ti81xx()
332 # define cpu_is_ti816x() is_ti816x()
333 # define cpu_is_ti814x() is_ti814x()
334 # define soc_is_am35xx() is_am35xx()
335 #endif
336
337 # if defined(CONFIG_SOC_AM33XX)
338 # undef soc_is_am33xx
339 # undef soc_is_am335x
340 # define soc_is_am33xx() is_am33xx()
341 # define soc_is_am335x() is_am335x()
342 #endif
343
344 # if defined(CONFIG_ARCH_OMAP4)
345 # undef cpu_is_omap44xx
346 # undef cpu_is_omap443x
347 # undef cpu_is_omap446x
348 # undef cpu_is_omap447x
349 # define cpu_is_omap44xx() is_omap44xx()
350 # define cpu_is_omap443x() is_omap443x()
351 # define cpu_is_omap446x() is_omap446x()
352 # define cpu_is_omap447x() is_omap447x()
353 # endif
354
355 # if defined(CONFIG_SOC_OMAP5)
356 # undef soc_is_omap54xx
357 # undef soc_is_omap543x
358 # define soc_is_omap54xx() is_omap54xx()
359 # define soc_is_omap543x() is_omap543x()
360 #endif
361
362 /* Various silicon revisions for omap2 */
363 #define OMAP242X_CLASS 0x24200024
364 #define OMAP2420_REV_ES1_0 OMAP242X_CLASS
365 #define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8))
366
367 #define OMAP243X_CLASS 0x24300024
368 #define OMAP2430_REV_ES1_0 OMAP243X_CLASS
369
370 #define OMAP343X_CLASS 0x34300034
371 #define OMAP3430_REV_ES1_0 OMAP343X_CLASS
372 #define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8))
373 #define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8))
374 #define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8))
375 #define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8))
376 #define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8))
377
378 #define OMAP363X_CLASS 0x36300034
379 #define OMAP3630_REV_ES1_0 OMAP363X_CLASS
380 #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8))
381 #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8))
382
383 #define TI816X_CLASS 0x81600034
384 #define TI8168_REV_ES1_0 TI816X_CLASS
385 #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8))
386
387 #define TI814X_CLASS 0x81400034
388 #define TI8148_REV_ES1_0 TI814X_CLASS
389 #define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8))
390 #define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8))
391
392 #define AM35XX_CLASS 0x35170034
393 #define AM35XX_REV_ES1_0 AM35XX_CLASS
394 #define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8))
395
396 #define AM335X_CLASS 0x33500033
397 #define AM335X_REV_ES1_0 AM335X_CLASS
398 #define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8))
399 #define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8))
400
401 #define OMAP443X_CLASS 0x44300044
402 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8))
403 #define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8))
404 #define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8))
405 #define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8))
406 #define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8))
407
408 #define OMAP446X_CLASS 0x44600044
409 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8))
410 #define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8))
411
412 #define OMAP447X_CLASS 0x44700044
413 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8))
414
415 #define OMAP54XX_CLASS 0x54000054
416 #define OMAP5430_REV_ES1_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
417 #define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
418 #define OMAP5432_REV_ES1_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
419 #define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
420
421 void omap2xxx_check_revision(void);
422 void omap3xxx_check_revision(void);
423 void omap4xxx_check_revision(void);
424 void omap5xxx_check_revision(void);
425 void omap3xxx_check_features(void);
426 void ti81xx_check_features(void);
427 void omap4xxx_check_features(void);
428
429 /*
430 * Runtime detection of OMAP3 features
431 *
432 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
433 * family have OS-level control over the I/O chain clock. This is
434 * to avoid a window during which wakeups could potentially be lost
435 * during powerdomain transitions. If this bit is set, it
436 * indicates that the chip does support OS-level control of this
437 * feature.
438 */
439 extern u32 omap_features;
440
441 #define OMAP3_HAS_L2CACHE BIT(0)
442 #define OMAP3_HAS_IVA BIT(1)
443 #define OMAP3_HAS_SGX BIT(2)
444 #define OMAP3_HAS_NEON BIT(3)
445 #define OMAP3_HAS_ISP BIT(4)
446 #define OMAP3_HAS_192MHZ_CLK BIT(5)
447 #define OMAP3_HAS_IO_WAKEUP BIT(6)
448 #define OMAP3_HAS_SDRC BIT(7)
449 #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
450 #define OMAP4_HAS_PERF_SILICON BIT(9)
451
452
453 #define OMAP3_HAS_FEATURE(feat,flag) \
454 static inline unsigned int omap3_has_ ##feat(void) \
455 { \
456 return omap_features & OMAP3_HAS_ ##flag; \
457 } \
458
459 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
460 OMAP3_HAS_FEATURE(sgx, SGX)
461 OMAP3_HAS_FEATURE(iva, IVA)
462 OMAP3_HAS_FEATURE(neon, NEON)
463 OMAP3_HAS_FEATURE(isp, ISP)
464 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
465 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
466 OMAP3_HAS_FEATURE(sdrc, SDRC)
467 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
468
469 /*
470 * Runtime detection of OMAP4 features
471 */
472 #define OMAP4_HAS_FEATURE(feat, flag) \
473 static inline unsigned int omap4_has_ ##feat(void) \
474 { \
475 return omap_features & OMAP4_HAS_ ##flag; \
476 } \
477
478 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
479
480 /*
481 * We need to make sure omap initcalls don't run when
482 * multiplatform kernels are booted on other SoCs.
483 */
484 #define omap_initcall(level, fn) \
485 static int __init __used __##fn(void) \
486 { \
487 if (!soc_is_omap()) \
488 return 0; \
489 return fn(); \
490 } \
491 level(__##fn);
492
493 #define omap_early_initcall(fn) omap_initcall(early_initcall, fn)
494 #define omap_core_initcall(fn) omap_initcall(core_initcall, fn)
495 #define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn)
496 #define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn)
497 #define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn)
498 #define omap_device_initcall(fn) omap_initcall(device_initcall, fn)
499 #define omap_late_initcall(fn) omap_initcall(late_initcall, fn)
500 #define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn)
501
502 #endif /* __ASSEMBLY__ */
503
504