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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
128int 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 */
136unsigned int omap_rev(void);
137
138static 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) \
163static 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) \
171static 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) \
179static 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) \
187static inline int is_omap ##subclass (void) \
188{ \
189 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
190}
191
192#define IS_TI_SUBCLASS(subclass, id) \
193static inline int is_ti ##subclass (void) \
194{ \
195 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
196}
197
198#define IS_AM_SUBCLASS(subclass, id) \
199static inline int is_am ##subclass (void) \
200{ \
201 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
202}
203
204IS_OMAP_CLASS(24xx, 0x24)
205IS_OMAP_CLASS(34xx, 0x34)
206IS_OMAP_CLASS(44xx, 0x44)
207IS_AM_CLASS(35xx, 0x35)
208IS_OMAP_CLASS(54xx, 0x54)
209IS_AM_CLASS(33xx, 0x33)
210IS_AM_CLASS(43xx, 0x43)
211
212IS_TI_CLASS(81xx, 0x81)
213
214IS_OMAP_SUBCLASS(242x, 0x242)
215IS_OMAP_SUBCLASS(243x, 0x243)
216IS_OMAP_SUBCLASS(343x, 0x343)
217IS_OMAP_SUBCLASS(363x, 0x363)
218IS_OMAP_SUBCLASS(443x, 0x443)
219IS_OMAP_SUBCLASS(446x, 0x446)
220IS_OMAP_SUBCLASS(447x, 0x447)
221IS_OMAP_SUBCLASS(543x, 0x543)
222
223IS_TI_SUBCLASS(816x, 0x816)
224IS_TI_SUBCLASS(814x, 0x814)
225IS_AM_SUBCLASS(335x, 0x335)
226IS_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) \
303static inline int is_omap ##type (void) \
304{ \
305 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
306}
307
308IS_OMAP_TYPE(2420, 0x2420)
309IS_OMAP_TYPE(2422, 0x2422)
310IS_OMAP_TYPE(2423, 0x2423)
311IS_OMAP_TYPE(2430, 0x2430)
312IS_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
462void omap2xxx_check_revision(void);
463void omap3xxx_check_revision(void);
464void omap4xxx_check_revision(void);
465void omap5xxx_check_revision(void);
466void omap3xxx_check_features(void);
467void ti81xx_check_features(void);
468void am33xx_check_features(void);
469void omap4xxx_check_features(void);
470
471/*
472 * Runtime detection of OMAP3 features
473 *
474 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
475 * family have OS-level control over the I/O chain clock. This is
476 * to avoid a window during which wakeups could potentially be lost
477 * during powerdomain transitions. If this bit is set, it
478 * indicates that the chip does support OS-level control of this
479 * feature.
480 */
481extern u32 omap_features;
482
483#define OMAP3_HAS_L2CACHE BIT(0)
484#define OMAP3_HAS_IVA BIT(1)
485#define OMAP3_HAS_SGX BIT(2)
486#define OMAP3_HAS_NEON BIT(3)
487#define OMAP3_HAS_ISP BIT(4)
488#define OMAP3_HAS_192MHZ_CLK BIT(5)
489#define OMAP3_HAS_IO_WAKEUP BIT(6)
490#define OMAP3_HAS_SDRC BIT(7)
491#define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
492#define OMAP4_HAS_PERF_SILICON BIT(9)
493
494
495#define OMAP3_HAS_FEATURE(feat,flag) \
496static inline unsigned int omap3_has_ ##feat(void) \
497{ \
498 return omap_features & OMAP3_HAS_ ##flag; \
499} \
500
501OMAP3_HAS_FEATURE(l2cache, L2CACHE)
502OMAP3_HAS_FEATURE(sgx, SGX)
503OMAP3_HAS_FEATURE(iva, IVA)
504OMAP3_HAS_FEATURE(neon, NEON)
505OMAP3_HAS_FEATURE(isp, ISP)
506OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
507OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
508OMAP3_HAS_FEATURE(sdrc, SDRC)
509OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
510
511/*
512 * Runtime detection of OMAP4 features
513 */
514#define OMAP4_HAS_FEATURE(feat, flag) \
515static inline unsigned int omap4_has_ ##feat(void) \
516{ \
517 return omap_features & OMAP4_HAS_ ##flag; \
518} \
519
520OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
521
522/*
523 * We need to make sure omap initcalls don't run when
524 * multiplatform kernels are booted on other SoCs.
525 */
526#define omap_initcall(level, fn) \
527static int __init __used __##fn(void) \
528{ \
529 if (!soc_is_omap()) \
530 return 0; \
531 return fn(); \
532} \
533level(__##fn);
534
535#define omap_early_initcall(fn) omap_initcall(early_initcall, fn)
536#define omap_core_initcall(fn) omap_initcall(core_initcall, fn)
537#define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn)
538#define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn)
539#define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn)
540#define omap_device_initcall(fn) omap_initcall(device_initcall, fn)
541#define omap_late_initcall(fn) omap_initcall(late_initcall, fn)
542#define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn)
543
544#endif /* __ASSEMBLY__ */
545