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