1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * OMAP cpu type detection
4 *
5 * Copyright (C) 2004, 2008 Nokia Corporation
6 *
7 * Copyright (C) 2009-11 Texas Instruments.
8 *
9 * Written by Tony Lindgren <tony.lindgren@nokia.com>
10 *
11 * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
12 * Added DRA7xxx specific defines - Sricharan R<r.sricharan@ti.com>
13 */
14
15 #include "omap24xx.h"
16 #include "omap34xx.h"
17 #include "omap44xx.h"
18 #include "ti81xx.h"
19 #include "am33xx.h"
20 #include "omap54xx.h"
21
22 #ifndef __ASSEMBLY__
23
24 #include <linux/bitops.h>
25 #include <linux/of.h>
26
27 /*
28 * OMAP2+ is always defined as ARCH_MULTIPLATFORM in Kconfig
29 */
30 #undef MULTI_OMAP2
31 #define MULTI_OMAP2
32
33 /*
34 * Omap device type i.e. EMU/HS/TST/GP/BAD
35 */
36 #define OMAP2_DEVICE_TYPE_TEST 0
37 #define OMAP2_DEVICE_TYPE_EMU 1
38 #define OMAP2_DEVICE_TYPE_SEC 2
39 #define OMAP2_DEVICE_TYPE_GP 3
40 #define OMAP2_DEVICE_TYPE_BAD 4
41
42 int omap_type(void);
43
44 /*
45 * omap_rev bits:
46 * SoC id bits (0730, 1510, 1710, 2422...) [31:16]
47 * SoC revision (See _REV_ defined in cpu.h) [15:08]
48 * SoC class bits (15xx, 16xx, 24xx, 34xx...) [07:00]
49 */
50 unsigned int omap_rev(void);
51
soc_is_omap(void)52 static inline int soc_is_omap(void)
53 {
54 return omap_rev() != 0;
55 }
56
57 /*
58 * Get the SoC 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 * soc_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
66 * soc_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423
67 * soc_is_omap243x(): True for OMAP2430
68 * soc_is_omap343x(): True for OMAP3430
69 * soc_is_omap443x(): True for OMAP4430
70 * soc_is_omap446x(): True for OMAP4460
71 * soc_is_omap447x(): True for OMAP4470
72 * soc_is_omap543x(): True for OMAP5430, OMAP5432
73 */
74 #define GET_OMAP_CLASS (omap_rev() & 0xff)
75
76 #define IS_OMAP_CLASS(class, id) \
77 static inline int is_omap ##class (void) \
78 { \
79 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
80 }
81
82 #define GET_AM_CLASS ((omap_rev() >> 24) & 0xff)
83
84 #define IS_AM_CLASS(class, id) \
85 static inline int is_am ##class (void) \
86 { \
87 return (GET_AM_CLASS == (id)) ? 1 : 0; \
88 }
89
90 #define GET_TI_CLASS ((omap_rev() >> 24) & 0xff)
91
92 #define IS_TI_CLASS(class, id) \
93 static inline int is_ti ##class (void) \
94 { \
95 return (GET_TI_CLASS == (id)) ? 1 : 0; \
96 }
97
98 #define GET_DRA_CLASS ((omap_rev() >> 24) & 0xff)
99
100 #define IS_DRA_CLASS(class, id) \
101 static inline int is_dra ##class (void) \
102 { \
103 return (GET_DRA_CLASS == (id)) ? 1 : 0; \
104 }
105
106 #define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff)
107
108 #define IS_OMAP_SUBCLASS(subclass, id) \
109 static inline int is_omap ##subclass (void) \
110 { \
111 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
112 }
113
114 #define IS_TI_SUBCLASS(subclass, id) \
115 static inline int is_ti ##subclass (void) \
116 { \
117 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
118 }
119
120 #define IS_AM_SUBCLASS(subclass, id) \
121 static inline int is_am ##subclass (void) \
122 { \
123 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
124 }
125
126 #define IS_DRA_SUBCLASS(subclass, id) \
127 static inline int is_dra ##subclass (void) \
128 { \
129 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
130 }
131
132 #define GET_DRA_PACKAGE (omap_rev() & 0xff)
133
134 #define IS_DRA_SUBCLASS_PACKAGE(subclass, package, id) \
135 static inline int is_dra ##subclass ##_ ##package (void) \
136 { \
137 return (is_dra ##subclass () && GET_DRA_PACKAGE == id) ? 1 : 0; \
138 }
139
140 IS_OMAP_CLASS(24xx, 0x24)
141 IS_OMAP_CLASS(34xx, 0x34)
142 IS_OMAP_CLASS(44xx, 0x44)
143 IS_AM_CLASS(35xx, 0x35)
144 IS_OMAP_CLASS(54xx, 0x54)
145 IS_AM_CLASS(33xx, 0x33)
146 IS_AM_CLASS(43xx, 0x43)
147
148 IS_TI_CLASS(81xx, 0x81)
149 IS_DRA_CLASS(7xx, 0x7)
150
151 IS_OMAP_SUBCLASS(242x, 0x242)
152 IS_OMAP_SUBCLASS(243x, 0x243)
153 IS_OMAP_SUBCLASS(343x, 0x343)
154 IS_OMAP_SUBCLASS(363x, 0x363)
155 IS_OMAP_SUBCLASS(443x, 0x443)
156 IS_OMAP_SUBCLASS(446x, 0x446)
157 IS_OMAP_SUBCLASS(447x, 0x447)
158 IS_OMAP_SUBCLASS(543x, 0x543)
159
160 IS_TI_SUBCLASS(816x, 0x816)
161 IS_TI_SUBCLASS(814x, 0x814)
162 IS_AM_SUBCLASS(335x, 0x335)
163 IS_AM_SUBCLASS(437x, 0x437)
164 IS_DRA_SUBCLASS(76x, 0x76)
165 IS_DRA_SUBCLASS_PACKAGE(76x, abz, 2)
166 IS_DRA_SUBCLASS_PACKAGE(76x, acd, 3)
167 IS_DRA_SUBCLASS(75x, 0x75)
168 IS_DRA_SUBCLASS(72x, 0x72)
169
170 #define soc_is_ti81xx() 0
171 #define soc_is_ti816x() 0
172 #define soc_is_ti814x() 0
173 #define soc_is_am35xx() 0
174 #define soc_is_am33xx() 0
175 #define soc_is_am335x() 0
176 #define soc_is_am43xx() 0
177 #define soc_is_am437x() 0
178 #define soc_is_omap44xx() 0
179 #define soc_is_omap443x() 0
180 #define soc_is_omap446x() 0
181 #define soc_is_omap447x() 0
182 #define soc_is_omap54xx() 0
183 #define soc_is_omap543x() 0
184 #define soc_is_dra7xx() 0
185 #define soc_is_dra76x() 0
186 #define soc_is_dra74x() 0
187 #define soc_is_dra72x() 0
188
189 #if defined(CONFIG_ARCH_OMAP2)
190 # define soc_is_omap24xx() is_omap24xx()
191 #else
192 # define soc_is_omap24xx() 0
193 #endif
194 #if defined(CONFIG_SOC_OMAP2420)
195 # define soc_is_omap242x() is_omap242x()
196 #else
197 # define soc_is_omap242x() 0
198 #endif
199 #if defined(CONFIG_SOC_OMAP2430)
200 # define soc_is_omap243x() is_omap243x()
201 #else
202 # define soc_is_omap243x() 0
203 #endif
204 #if defined(CONFIG_ARCH_OMAP3)
205 # define soc_is_omap34xx() is_omap34xx()
206 # define soc_is_omap343x() is_omap343x()
207 #else
208 # define soc_is_omap34xx() 0
209 # define soc_is_omap343x() 0
210 #endif
211
212 /*
213 * Macros to detect individual cpu types.
214 * These are only rarely needed.
215 * soc_is_omap2420(): True for OMAP2420
216 * soc_is_omap2422(): True for OMAP2422
217 * soc_is_omap2423(): True for OMAP2423
218 * soc_is_omap2430(): True for OMAP2430
219 * soc_is_omap3430(): True for OMAP3430
220 */
221 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
222
223 #define IS_OMAP_TYPE(type, id) \
224 static inline int is_omap ##type (void) \
225 { \
226 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
227 }
228
229 IS_OMAP_TYPE(2420, 0x2420)
230 IS_OMAP_TYPE(2422, 0x2422)
231 IS_OMAP_TYPE(2423, 0x2423)
232 IS_OMAP_TYPE(2430, 0x2430)
233 IS_OMAP_TYPE(3430, 0x3430)
234
235 #define soc_is_omap2420() 0
236 #define soc_is_omap2422() 0
237 #define soc_is_omap2423() 0
238 #define soc_is_omap2430() 0
239 #define soc_is_omap3430() 0
240 #define soc_is_omap3630() 0
241 #define soc_is_omap5430() 0
242
243 /* These are needed for the common code */
244 #define soc_is_omap7xx() 0
245 #define soc_is_omap15xx() 0
246 #define soc_is_omap16xx() 0
247 #define soc_is_omap1510() 0
248 #define soc_is_omap1610() 0
249 #define soc_is_omap1611() 0
250 #define soc_is_omap1621() 0
251 #define soc_is_omap1710() 0
252 #define cpu_class_is_omap1() 0
253 #define cpu_class_is_omap2() 1
254
255 #if defined(CONFIG_ARCH_OMAP2)
256 # undef soc_is_omap2420
257 # undef soc_is_omap2422
258 # undef soc_is_omap2423
259 # undef soc_is_omap2430
260 # define soc_is_omap2420() is_omap2420()
261 # define soc_is_omap2422() is_omap2422()
262 # define soc_is_omap2423() is_omap2423()
263 # define soc_is_omap2430() is_omap2430()
264 #endif
265
266 #if defined(CONFIG_ARCH_OMAP3)
267 # undef soc_is_omap3430
268 # undef soc_is_ti81xx
269 # undef soc_is_ti816x
270 # undef soc_is_ti814x
271 # undef soc_is_am35xx
272 # define soc_is_omap3430() is_omap3430()
273 # undef soc_is_omap3630
274 # define soc_is_omap3630() is_omap363x()
275 # define soc_is_ti81xx() is_ti81xx()
276 # define soc_is_ti816x() is_ti816x()
277 # define soc_is_ti814x() is_ti814x()
278 # define soc_is_am35xx() is_am35xx()
279 #endif
280
281 # if defined(CONFIG_SOC_AM33XX)
282 # undef soc_is_am33xx
283 # undef soc_is_am335x
284 # define soc_is_am33xx() is_am33xx()
285 # define soc_is_am335x() is_am335x()
286 #endif
287
288 #ifdef CONFIG_SOC_AM43XX
289 # undef soc_is_am43xx
290 # undef soc_is_am437x
291 # define soc_is_am43xx() is_am43xx()
292 # define soc_is_am437x() is_am437x()
293 #endif
294
295 # if defined(CONFIG_ARCH_OMAP4)
296 # undef soc_is_omap44xx
297 # undef soc_is_omap443x
298 # undef soc_is_omap446x
299 # undef soc_is_omap447x
300 # define soc_is_omap44xx() is_omap44xx()
301 # define soc_is_omap443x() is_omap443x()
302 # define soc_is_omap446x() is_omap446x()
303 # define soc_is_omap447x() is_omap447x()
304 # endif
305
306 # if defined(CONFIG_SOC_OMAP5)
307 # undef soc_is_omap54xx
308 # undef soc_is_omap543x
309 # define soc_is_omap54xx() is_omap54xx()
310 # define soc_is_omap543x() is_omap543x()
311 #endif
312
313 #if defined(CONFIG_SOC_DRA7XX)
314 #undef soc_is_dra7xx
315 #undef soc_is_dra76x
316 #undef soc_is_dra76x_abz
317 #undef soc_is_dra76x_acd
318 #undef soc_is_dra74x
319 #undef soc_is_dra72x
320 #define soc_is_dra7xx() is_dra7xx()
321 #define soc_is_dra76x() is_dra76x()
322 #define soc_is_dra76x_abz() is_dra76x_abz()
323 #define soc_is_dra76x_acd() is_dra76x_acd()
324 #define soc_is_dra74x() is_dra75x()
325 #define soc_is_dra72x() is_dra72x()
326 #endif
327
328 /* Various silicon revisions for omap2 */
329 #define OMAP242X_CLASS 0x24200024
330 #define OMAP2420_REV_ES1_0 OMAP242X_CLASS
331 #define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8))
332
333 #define OMAP243X_CLASS 0x24300024
334 #define OMAP2430_REV_ES1_0 OMAP243X_CLASS
335
336 #define OMAP343X_CLASS 0x34300034
337 #define OMAP3430_REV_ES1_0 OMAP343X_CLASS
338 #define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8))
339 #define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8))
340 #define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8))
341 #define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8))
342 #define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8))
343
344 #define OMAP363X_CLASS 0x36300034
345 #define OMAP3630_REV_ES1_0 OMAP363X_CLASS
346 #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8))
347 #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8))
348
349 #define TI816X_CLASS 0x81600081
350 #define TI8168_REV_ES1_0 TI816X_CLASS
351 #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8))
352 #define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8))
353 #define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8))
354
355 #define TI814X_CLASS 0x81400081
356 #define TI8148_REV_ES1_0 TI814X_CLASS
357 #define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8))
358 #define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8))
359
360 #define AM35XX_CLASS 0x35170034
361 #define AM35XX_REV_ES1_0 AM35XX_CLASS
362 #define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8))
363
364 #define AM335X_CLASS 0x33500033
365 #define AM335X_REV_ES1_0 AM335X_CLASS
366 #define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8))
367 #define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8))
368
369 #define AM437X_CLASS 0x43700000
370 #define AM437X_REV_ES1_0 (AM437X_CLASS | (0x10 << 8))
371 #define AM437X_REV_ES1_1 (AM437X_CLASS | (0x11 << 8))
372 #define AM437X_REV_ES1_2 (AM437X_CLASS | (0x12 << 8))
373
374 #define OMAP443X_CLASS 0x44300044
375 #define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8))
376 #define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8))
377 #define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8))
378 #define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8))
379 #define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8))
380
381 #define OMAP446X_CLASS 0x44600044
382 #define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8))
383 #define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8))
384
385 #define OMAP447X_CLASS 0x44700044
386 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8))
387
388 #define OMAP54XX_CLASS 0x54000054
389 #define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
390 #define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
391
392 #define DRA7XX_CLASS 0x07000000
393 #define DRA762_REV_ES1_0 (DRA7XX_CLASS | (0x62 << 16) | (0x10 << 8))
394 #define DRA762_ABZ_REV_ES1_0 (DRA762_REV_ES1_0 | (2 << 0))
395 #define DRA762_ACD_REV_ES1_0 (DRA762_REV_ES1_0 | (3 << 0))
396 #define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
397 #define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
398 #define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))
399 #define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
400 #define DRA722_REV_ES2_0 (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8))
401 #define DRA722_REV_ES2_1 (DRA7XX_CLASS | (0x22 << 16) | (0x21 << 8))
402
403 void omap2xxx_check_revision(void);
404 void omap3xxx_check_revision(void);
405 void omap4xxx_check_revision(void);
406 void omap5xxx_check_revision(void);
407 void dra7xxx_check_revision(void);
408 void omap3xxx_check_features(void);
409 void ti81xx_check_features(void);
410 void am33xx_check_features(void);
411 void omap4xxx_check_features(void);
412
413 /*
414 * Runtime detection of OMAP3 features
415 *
416 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
417 * family have OS-level control over the I/O chain clock. This is
418 * to avoid a window during which wakeups could potentially be lost
419 * during powerdomain transitions. If this bit is set, it
420 * indicates that the chip does support OS-level control of this
421 * feature.
422 */
423 extern u32 omap_features;
424
425 #define OMAP3_HAS_L2CACHE BIT(0)
426 #define OMAP3_HAS_IVA BIT(1)
427 #define OMAP3_HAS_SGX BIT(2)
428 #define OMAP3_HAS_NEON BIT(3)
429 #define OMAP3_HAS_ISP BIT(4)
430 #define OMAP3_HAS_192MHZ_CLK BIT(5)
431 #define OMAP3_HAS_IO_WAKEUP BIT(6)
432 #define OMAP3_HAS_SDRC BIT(7)
433 #define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
434 #define OMAP4_HAS_PERF_SILICON BIT(9)
435
436
437 #define OMAP3_HAS_FEATURE(feat,flag) \
438 static inline unsigned int omap3_has_ ##feat(void) \
439 { \
440 return omap_features & OMAP3_HAS_ ##flag; \
441 } \
442
443 OMAP3_HAS_FEATURE(l2cache, L2CACHE)
444 OMAP3_HAS_FEATURE(sgx, SGX)
445 OMAP3_HAS_FEATURE(iva, IVA)
446 OMAP3_HAS_FEATURE(neon, NEON)
447 OMAP3_HAS_FEATURE(isp, ISP)
448 OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
449 OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
450 OMAP3_HAS_FEATURE(sdrc, SDRC)
451 OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
452
453 /*
454 * Runtime detection of OMAP4 features
455 */
456 #define OMAP4_HAS_FEATURE(feat, flag) \
457 static inline unsigned int omap4_has_ ##feat(void) \
458 { \
459 return omap_features & OMAP4_HAS_ ##flag; \
460 } \
461
462 OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
463
464 /*
465 * We need to make sure omap initcalls don't run when
466 * multiplatform kernels are booted on other SoCs.
467 */
468 #define omap_initcall(level, fn) \
469 static int __init __used __##fn(void) \
470 { \
471 if (!soc_is_omap()) \
472 return 0; \
473 return fn(); \
474 } \
475 level(__##fn);
476
477 #define omap_early_initcall(fn) omap_initcall(early_initcall, fn)
478 #define omap_core_initcall(fn) omap_initcall(core_initcall, fn)
479 #define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn)
480 #define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn)
481 #define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn)
482 #define omap_device_initcall(fn) omap_initcall(device_initcall, fn)
483 #define omap_late_initcall(fn) omap_initcall(late_initcall, fn)
484 #define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn)
485
486 /* Legacy defines, these can be removed when users are removed */
487 #define cpu_is_omap2420() soc_is_omap2420()
488 #define cpu_is_omap2422() soc_is_omap2422()
489 #define cpu_is_omap242x() soc_is_omap242x()
490 #define cpu_is_omap2430() soc_is_omap2430()
491 #define cpu_is_omap243x() soc_is_omap243x()
492 #define cpu_is_omap24xx() soc_is_omap24xx()
493 #define cpu_is_omap3430() soc_is_omap3430()
494 #define cpu_is_omap343x() soc_is_omap343x()
495 #define cpu_is_omap34xx() soc_is_omap34xx()
496 #define cpu_is_omap3630() soc_is_omap3630()
497 #define cpu_is_omap443x() soc_is_omap443x()
498 #define cpu_is_omap446x() soc_is_omap446x()
499 #define cpu_is_omap44xx() soc_is_omap44xx()
500 #define cpu_is_ti814x() soc_is_ti814x()
501 #define cpu_is_ti816x() soc_is_ti816x()
502 #define cpu_is_ti81xx() soc_is_ti81xx()
503
504 #endif /* __ASSEMBLY__ */
505