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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 * 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
56int 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 */
64unsigned int omap_rev(void);
65
66static 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) \
91static 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) \
99static 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) \
107static 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) \
115static 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) \
123static inline int is_omap ##subclass (void) \
124{ \
125 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
126}
127
128#define IS_TI_SUBCLASS(subclass, id) \
129static inline int is_ti ##subclass (void) \
130{ \
131 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
132}
133
134#define IS_AM_SUBCLASS(subclass, id) \
135static inline int is_am ##subclass (void) \
136{ \
137 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
138}
139
140#define IS_DRA_SUBCLASS(subclass, id) \
141static 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) \
149static inline int is_dra ##subclass ##_ ##package (void) \
150{ \
151 return (is_dra ##subclass () && GET_DRA_PACKAGE == id) ? 1 : 0; \
152}
153
154IS_OMAP_CLASS(24xx, 0x24)
155IS_OMAP_CLASS(34xx, 0x34)
156IS_OMAP_CLASS(44xx, 0x44)
157IS_AM_CLASS(35xx, 0x35)
158IS_OMAP_CLASS(54xx, 0x54)
159IS_AM_CLASS(33xx, 0x33)
160IS_AM_CLASS(43xx, 0x43)
161
162IS_TI_CLASS(81xx, 0x81)
163IS_DRA_CLASS(7xx, 0x7)
164
165IS_OMAP_SUBCLASS(242x, 0x242)
166IS_OMAP_SUBCLASS(243x, 0x243)
167IS_OMAP_SUBCLASS(343x, 0x343)
168IS_OMAP_SUBCLASS(363x, 0x363)
169IS_OMAP_SUBCLASS(443x, 0x443)
170IS_OMAP_SUBCLASS(446x, 0x446)
171IS_OMAP_SUBCLASS(447x, 0x447)
172IS_OMAP_SUBCLASS(543x, 0x543)
173
174IS_TI_SUBCLASS(816x, 0x816)
175IS_TI_SUBCLASS(814x, 0x814)
176IS_AM_SUBCLASS(335x, 0x335)
177IS_AM_SUBCLASS(437x, 0x437)
178IS_DRA_SUBCLASS(76x, 0x76)
179IS_DRA_SUBCLASS_PACKAGE(76x, abz, 2)
180IS_DRA_SUBCLASS_PACKAGE(76x, acd, 3)
181IS_DRA_SUBCLASS(75x, 0x75)
182IS_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) \
238static inline int is_omap ##type (void) \
239{ \
240 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
241}
242
243IS_OMAP_TYPE(2420, 0x2420)
244IS_OMAP_TYPE(2422, 0x2422)
245IS_OMAP_TYPE(2423, 0x2423)
246IS_OMAP_TYPE(2430, 0x2430)
247IS_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
417void omap2xxx_check_revision(void);
418void omap3xxx_check_revision(void);
419void omap4xxx_check_revision(void);
420void omap5xxx_check_revision(void);
421void dra7xxx_check_revision(void);
422void omap3xxx_check_features(void);
423void ti81xx_check_features(void);
424void am33xx_check_features(void);
425void 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 */
437extern 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) \
452static inline unsigned int omap3_has_ ##feat(void) \
453{ \
454 return omap_features & OMAP3_HAS_ ##flag; \
455} \
456
457OMAP3_HAS_FEATURE(l2cache, L2CACHE)
458OMAP3_HAS_FEATURE(sgx, SGX)
459OMAP3_HAS_FEATURE(iva, IVA)
460OMAP3_HAS_FEATURE(neon, NEON)
461OMAP3_HAS_FEATURE(isp, ISP)
462OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
463OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
464OMAP3_HAS_FEATURE(sdrc, SDRC)
465OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
466
467/*
468 * Runtime detection of OMAP4 features
469 */
470#define OMAP4_HAS_FEATURE(feat, flag) \
471static inline unsigned int omap4_has_ ##feat(void) \
472{ \
473 return omap_features & OMAP4_HAS_ ##flag; \
474} \
475
476OMAP4_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) \
483static int __init __used __##fn(void) \
484{ \
485 if (!soc_is_omap()) \
486 return 0; \
487 return fn(); \
488} \
489level(__##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__ */