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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
146IS_OMAP_CLASS(24xx, 0x24)
147IS_OMAP_CLASS(34xx, 0x34)
148IS_OMAP_CLASS(44xx, 0x44)
149IS_AM_CLASS(35xx, 0x35)
150IS_OMAP_CLASS(54xx, 0x54)
151IS_AM_CLASS(33xx, 0x33)
152IS_AM_CLASS(43xx, 0x43)
153
154IS_TI_CLASS(81xx, 0x81)
155IS_DRA_CLASS(7xx, 0x7)
156
157IS_OMAP_SUBCLASS(242x, 0x242)
158IS_OMAP_SUBCLASS(243x, 0x243)
159IS_OMAP_SUBCLASS(343x, 0x343)
160IS_OMAP_SUBCLASS(363x, 0x363)
161IS_OMAP_SUBCLASS(443x, 0x443)
162IS_OMAP_SUBCLASS(446x, 0x446)
163IS_OMAP_SUBCLASS(447x, 0x447)
164IS_OMAP_SUBCLASS(543x, 0x543)
165
166IS_TI_SUBCLASS(816x, 0x816)
167IS_TI_SUBCLASS(814x, 0x814)
168IS_AM_SUBCLASS(335x, 0x335)
169IS_AM_SUBCLASS(437x, 0x437)
170IS_DRA_SUBCLASS(75x, 0x75)
171IS_DRA_SUBCLASS(72x, 0x72)
172
173#define soc_is_ti81xx() 0
174#define soc_is_ti816x() 0
175#define soc_is_ti814x() 0
176#define soc_is_am35xx() 0
177#define soc_is_am33xx() 0
178#define soc_is_am335x() 0
179#define soc_is_am43xx() 0
180#define soc_is_am437x() 0
181#define soc_is_omap44xx() 0
182#define soc_is_omap443x() 0
183#define soc_is_omap446x() 0
184#define soc_is_omap447x() 0
185#define soc_is_omap54xx() 0
186#define soc_is_omap543x() 0
187#define soc_is_dra7xx() 0
188#define soc_is_dra74x() 0
189#define soc_is_dra72x() 0
190
191#if defined(CONFIG_ARCH_OMAP2)
192# define soc_is_omap24xx() is_omap24xx()
193#else
194# define soc_is_omap24xx() 0
195#endif
196#if defined(CONFIG_SOC_OMAP2420)
197# define soc_is_omap242x() is_omap242x()
198#else
199# define soc_is_omap242x() 0
200#endif
201#if defined(CONFIG_SOC_OMAP2430)
202# define soc_is_omap243x() is_omap243x()
203#else
204# define soc_is_omap243x() 0
205#endif
206#if defined(CONFIG_ARCH_OMAP3)
207# define soc_is_omap34xx() is_omap34xx()
208# define soc_is_omap343x() is_omap343x()
209#else
210# define soc_is_omap34xx() 0
211# define soc_is_omap343x() 0
212#endif
213
214/*
215 * Macros to detect individual cpu types.
216 * These are only rarely needed.
217 * soc_is_omap2420(): True for OMAP2420
218 * soc_is_omap2422(): True for OMAP2422
219 * soc_is_omap2423(): True for OMAP2423
220 * soc_is_omap2430(): True for OMAP2430
221 * soc_is_omap3430(): True for OMAP3430
222 */
223#define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
224
225#define IS_OMAP_TYPE(type, id) \
226static inline int is_omap ##type (void) \
227{ \
228 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
229}
230
231IS_OMAP_TYPE(2420, 0x2420)
232IS_OMAP_TYPE(2422, 0x2422)
233IS_OMAP_TYPE(2423, 0x2423)
234IS_OMAP_TYPE(2430, 0x2430)
235IS_OMAP_TYPE(3430, 0x3430)
236
237#define soc_is_omap2420() 0
238#define soc_is_omap2422() 0
239#define soc_is_omap2423() 0
240#define soc_is_omap2430() 0
241#define soc_is_omap3430() 0
242#define soc_is_omap3630() 0
243#define soc_is_omap5430() 0
244
245/* These are needed for the common code */
246#define soc_is_omap7xx() 0
247#define soc_is_omap15xx() 0
248#define soc_is_omap16xx() 0
249#define soc_is_omap1510() 0
250#define soc_is_omap1610() 0
251#define soc_is_omap1611() 0
252#define soc_is_omap1621() 0
253#define soc_is_omap1710() 0
254#define cpu_class_is_omap1() 0
255#define cpu_class_is_omap2() 1
256
257#if defined(CONFIG_ARCH_OMAP2)
258# undef soc_is_omap2420
259# undef soc_is_omap2422
260# undef soc_is_omap2423
261# undef soc_is_omap2430
262# define soc_is_omap2420() is_omap2420()
263# define soc_is_omap2422() is_omap2422()
264# define soc_is_omap2423() is_omap2423()
265# define soc_is_omap2430() is_omap2430()
266#endif
267
268#if defined(CONFIG_ARCH_OMAP3)
269# undef soc_is_omap3430
270# undef soc_is_ti81xx
271# undef soc_is_ti816x
272# undef soc_is_ti814x
273# undef soc_is_am35xx
274# define soc_is_omap3430() is_omap3430()
275# undef soc_is_omap3630
276# define soc_is_omap3630() is_omap363x()
277# define soc_is_ti81xx() is_ti81xx()
278# define soc_is_ti816x() is_ti816x()
279# define soc_is_ti814x() is_ti814x()
280# define soc_is_am35xx() is_am35xx()
281#endif
282
283# if defined(CONFIG_SOC_AM33XX)
284# undef soc_is_am33xx
285# undef soc_is_am335x
286# define soc_is_am33xx() is_am33xx()
287# define soc_is_am335x() is_am335x()
288#endif
289
290#ifdef CONFIG_SOC_AM43XX
291# undef soc_is_am43xx
292# undef soc_is_am437x
293# define soc_is_am43xx() is_am43xx()
294# define soc_is_am437x() is_am437x()
295#endif
296
297# if defined(CONFIG_ARCH_OMAP4)
298# undef soc_is_omap44xx
299# undef soc_is_omap443x
300# undef soc_is_omap446x
301# undef soc_is_omap447x
302# define soc_is_omap44xx() is_omap44xx()
303# define soc_is_omap443x() is_omap443x()
304# define soc_is_omap446x() is_omap446x()
305# define soc_is_omap447x() is_omap447x()
306# endif
307
308# if defined(CONFIG_SOC_OMAP5)
309# undef soc_is_omap54xx
310# undef soc_is_omap543x
311# define soc_is_omap54xx() is_omap54xx()
312# define soc_is_omap543x() is_omap543x()
313#endif
314
315#if defined(CONFIG_SOC_DRA7XX)
316#undef soc_is_dra7xx
317#undef soc_is_dra74x
318#undef soc_is_dra72x
319#define soc_is_dra7xx() is_dra7xx()
320#define soc_is_dra74x() is_dra75x()
321#define soc_is_dra72x() is_dra72x()
322#endif
323
324/* Various silicon revisions for omap2 */
325#define OMAP242X_CLASS 0x24200024
326#define OMAP2420_REV_ES1_0 OMAP242X_CLASS
327#define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8))
328
329#define OMAP243X_CLASS 0x24300024
330#define OMAP2430_REV_ES1_0 OMAP243X_CLASS
331
332#define OMAP343X_CLASS 0x34300034
333#define OMAP3430_REV_ES1_0 OMAP343X_CLASS
334#define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8))
335#define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8))
336#define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8))
337#define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8))
338#define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8))
339
340#define OMAP363X_CLASS 0x36300034
341#define OMAP3630_REV_ES1_0 OMAP363X_CLASS
342#define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8))
343#define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8))
344
345#define TI816X_CLASS 0x81600081
346#define TI8168_REV_ES1_0 TI816X_CLASS
347#define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8))
348#define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8))
349#define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8))
350
351#define TI814X_CLASS 0x81400081
352#define TI8148_REV_ES1_0 TI814X_CLASS
353#define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8))
354#define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8))
355
356#define AM35XX_CLASS 0x35170034
357#define AM35XX_REV_ES1_0 AM35XX_CLASS
358#define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8))
359
360#define AM335X_CLASS 0x33500033
361#define AM335X_REV_ES1_0 AM335X_CLASS
362#define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8))
363#define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8))
364
365#define AM437X_CLASS 0x43700000
366#define AM437X_REV_ES1_0 (AM437X_CLASS | (0x10 << 8))
367#define AM437X_REV_ES1_1 (AM437X_CLASS | (0x11 << 8))
368#define AM437X_REV_ES1_2 (AM437X_CLASS | (0x12 << 8))
369
370#define OMAP443X_CLASS 0x44300044
371#define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8))
372#define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8))
373#define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8))
374#define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8))
375#define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8))
376
377#define OMAP446X_CLASS 0x44600044
378#define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8))
379#define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8))
380
381#define OMAP447X_CLASS 0x44700044
382#define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8))
383
384#define OMAP54XX_CLASS 0x54000054
385#define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
386#define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
387
388#define DRA7XX_CLASS 0x07000000
389#define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
390#define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
391#define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))
392#define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
393#define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
394#define DRA722_REV_ES2_0 (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8))
395
396void omap2xxx_check_revision(void);
397void omap3xxx_check_revision(void);
398void omap4xxx_check_revision(void);
399void omap5xxx_check_revision(void);
400void dra7xxx_check_revision(void);
401void omap3xxx_check_features(void);
402void ti81xx_check_features(void);
403void am33xx_check_features(void);
404void omap4xxx_check_features(void);
405
406/*
407 * Runtime detection of OMAP3 features
408 *
409 * OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
410 * family have OS-level control over the I/O chain clock. This is
411 * to avoid a window during which wakeups could potentially be lost
412 * during powerdomain transitions. If this bit is set, it
413 * indicates that the chip does support OS-level control of this
414 * feature.
415 */
416extern u32 omap_features;
417
418#define OMAP3_HAS_L2CACHE BIT(0)
419#define OMAP3_HAS_IVA BIT(1)
420#define OMAP3_HAS_SGX BIT(2)
421#define OMAP3_HAS_NEON BIT(3)
422#define OMAP3_HAS_ISP BIT(4)
423#define OMAP3_HAS_192MHZ_CLK BIT(5)
424#define OMAP3_HAS_IO_WAKEUP BIT(6)
425#define OMAP3_HAS_SDRC BIT(7)
426#define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
427#define OMAP4_HAS_PERF_SILICON BIT(9)
428
429
430#define OMAP3_HAS_FEATURE(feat,flag) \
431static inline unsigned int omap3_has_ ##feat(void) \
432{ \
433 return omap_features & OMAP3_HAS_ ##flag; \
434} \
435
436OMAP3_HAS_FEATURE(l2cache, L2CACHE)
437OMAP3_HAS_FEATURE(sgx, SGX)
438OMAP3_HAS_FEATURE(iva, IVA)
439OMAP3_HAS_FEATURE(neon, NEON)
440OMAP3_HAS_FEATURE(isp, ISP)
441OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
442OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
443OMAP3_HAS_FEATURE(sdrc, SDRC)
444OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
445
446/*
447 * Runtime detection of OMAP4 features
448 */
449#define OMAP4_HAS_FEATURE(feat, flag) \
450static inline unsigned int omap4_has_ ##feat(void) \
451{ \
452 return omap_features & OMAP4_HAS_ ##flag; \
453} \
454
455OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
456
457/*
458 * We need to make sure omap initcalls don't run when
459 * multiplatform kernels are booted on other SoCs.
460 */
461#define omap_initcall(level, fn) \
462static int __init __used __##fn(void) \
463{ \
464 if (!soc_is_omap()) \
465 return 0; \
466 return fn(); \
467} \
468level(__##fn);
469
470#define omap_early_initcall(fn) omap_initcall(early_initcall, fn)
471#define omap_core_initcall(fn) omap_initcall(core_initcall, fn)
472#define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn)
473#define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn)
474#define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn)
475#define omap_device_initcall(fn) omap_initcall(device_initcall, fn)
476#define omap_late_initcall(fn) omap_initcall(late_initcall, fn)
477#define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn)
478
479/* Legacy defines, these can be removed when users are removed */
480#define cpu_is_omap2420() soc_is_omap2420()
481#define cpu_is_omap2422() soc_is_omap2422()
482#define cpu_is_omap242x() soc_is_omap242x()
483#define cpu_is_omap2430() soc_is_omap2430()
484#define cpu_is_omap243x() soc_is_omap243x()
485#define cpu_is_omap24xx() soc_is_omap24xx()
486#define cpu_is_omap3430() soc_is_omap3430()
487#define cpu_is_omap343x() soc_is_omap343x()
488#define cpu_is_omap34xx() soc_is_omap34xx()
489#define cpu_is_omap3630() soc_is_omap3630()
490#define cpu_is_omap443x() soc_is_omap443x()
491#define cpu_is_omap446x() soc_is_omap446x()
492#define cpu_is_omap44xx() soc_is_omap44xx()
493#define cpu_is_ti814x() soc_is_ti814x()
494#define cpu_is_ti816x() soc_is_ti816x()
495#define cpu_is_ti81xx() soc_is_ti81xx()
496
497#endif /* __ASSEMBLY__ */