aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/clockdomains3xxx_data.c
blob: 933a35cd124a33a1184639054afba1d582623fc0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
/*
 * OMAP3xxx clockdomains
 *
 * Copyright (C) 2008-2011 Texas Instruments, Inc.
 * Copyright (C) 2008-2010 Nokia Corporation
 *
 * Paul Walmsley, Jouni Högander
 *
 * This file contains clockdomains and clockdomain wakeup/sleep
 * dependencies for the OMAP3xxx chips.  Some notes:
 *
 * A useful validation rule for struct clockdomain: Any clockdomain
 * referenced by a wkdep_srcs or sleepdep_srcs array must have a
 * dep_bit assigned.  So wkdep_srcs/sleepdep_srcs are really just
 * software-controllable dependencies.  Non-software-controllable
 * dependencies do exist, but they are not encoded below (yet).
 *
 * The overly-specific dep_bit names are due to a bit name collision
 * with CM_FCLKEN_{DSP,IVA2}.  The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
 * value are the same for all powerdomains: 2
 *
 * XXX should dep_bit be a mask, so we can test to see if it is 0 as a
 * sanity check?
 * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
 */

/*
 * To-Do List
 * -> Port the Sleep/Wakeup dependencies for the domains
 *    from the Power domain framework
 */

#include <linux/kernel.h>
#include <linux/io.h>

#include "clockdomain.h"
#include "prm2xxx_3xxx.h"
#include "cm2xxx_3xxx.h"
#include "cm-regbits-34xx.h"
#include "prm-regbits-34xx.h"

/*
 * Clockdomain dependencies for wkdeps/sleepdeps
 *
 * XXX Hardware dependencies (e.g., dependencies that cannot be
 * changed in software) are not included here yet, but should be.
 */

/* OMAP3-specific possible dependencies */

/*
 * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
 * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
 */
static struct clkdm_dep gfx_sgx_3xxx_wkdeps[] = {
	{ .clkdm_name = "iva2_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

static struct clkdm_dep gfx_sgx_am35x_wkdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

/* 3430: PM_WKDEP_PER: CORE, IVA2, MPU, WKUP */
static struct clkdm_dep per_wkdeps[] = {
	{ .clkdm_name = "core_l3_clkdm" },
	{ .clkdm_name = "core_l4_clkdm" },
	{ .clkdm_name = "iva2_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

static struct clkdm_dep per_am35x_wkdeps[] = {
	{ .clkdm_name = "core_l3_clkdm" },
	{ .clkdm_name = "core_l4_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

/* 3430ES2: PM_WKDEP_USBHOST: CORE, IVA2, MPU, WKUP */
static struct clkdm_dep usbhost_wkdeps[] = {
	{ .clkdm_name = "core_l3_clkdm" },
	{ .clkdm_name = "core_l4_clkdm" },
	{ .clkdm_name = "iva2_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

static struct clkdm_dep usbhost_am35x_wkdeps[] = {
	{ .clkdm_name = "core_l3_clkdm" },
	{ .clkdm_name = "core_l4_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

/* 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER */
static struct clkdm_dep mpu_3xxx_wkdeps[] = {
	{ .clkdm_name = "core_l3_clkdm" },
	{ .clkdm_name = "core_l4_clkdm" },
	{ .clkdm_name = "iva2_clkdm" },
	{ .clkdm_name = "dss_clkdm" },
	{ .clkdm_name = "per_clkdm" },
	{ NULL },
};

static struct clkdm_dep mpu_am35x_wkdeps[] = {
	{ .clkdm_name = "core_l3_clkdm" },
	{ .clkdm_name = "core_l4_clkdm" },
	{ .clkdm_name = "dss_clkdm" },
	{ .clkdm_name = "per_clkdm" },
	{ NULL },
};

/* 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER */
static struct clkdm_dep iva2_wkdeps[] = {
	{ .clkdm_name = "core_l3_clkdm" },
	{ .clkdm_name = "core_l4_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ .clkdm_name = "dss_clkdm" },
	{ .clkdm_name = "per_clkdm" },
	{ NULL },
};

/* 3430 PM_WKDEP_CAM: IVA2, MPU, WKUP */
static struct clkdm_dep cam_wkdeps[] = {
	{ .clkdm_name = "iva2_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

/* 3430 PM_WKDEP_DSS: IVA2, MPU, WKUP */
static struct clkdm_dep dss_wkdeps[] = {
	{ .clkdm_name = "iva2_clkdm" },
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

static struct clkdm_dep dss_am35x_wkdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "wkup_clkdm" },
	{ NULL },
};

/* 3430: PM_WKDEP_NEON: MPU */
static struct clkdm_dep neon_wkdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ NULL },
};

/* Sleep dependency source arrays for OMAP3-specific clkdms */

/* 3430: CM_SLEEPDEP_DSS: MPU, IVA */
static struct clkdm_dep dss_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "iva2_clkdm" },
	{ NULL },
};

static struct clkdm_dep dss_am35x_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ NULL },
};

/* 3430: CM_SLEEPDEP_PER: MPU, IVA */
static struct clkdm_dep per_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "iva2_clkdm" },
	{ NULL },
};

static struct clkdm_dep per_am35x_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ NULL },
};

/* 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA */
static struct clkdm_dep usbhost_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ .clkdm_name = "iva2_clkdm" },
	{ NULL },
};

static struct clkdm_dep usbhost_am35x_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ NULL },
};

/* 3430: CM_SLEEPDEP_CAM: MPU */
static struct clkdm_dep cam_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ NULL },
};

/*
 * 3430ES1: CM_SLEEPDEP_GFX: MPU
 * 3430ES2: CM_SLEEPDEP_SGX: MPU
 * These can share data since they will never be present simultaneously
 * on the same device.
 */
static struct clkdm_dep gfx_sgx_sleepdeps[] = {
	{ .clkdm_name = "mpu_clkdm" },
	{ NULL },
};

/*
 * OMAP3 clockdomains
 */

static struct clockdomain mpu_3xxx_clkdm = {
	.name		= "mpu_clkdm",
	.pwrdm		= { .name = "mpu_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
	.dep_bit	= OMAP3430_EN_MPU_SHIFT,
	.wkdep_srcs	= mpu_3xxx_wkdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
};

static struct clockdomain mpu_am35x_clkdm = {
	.name		= "mpu_clkdm",
	.pwrdm		= { .name = "mpu_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
	.dep_bit	= OMAP3430_EN_MPU_SHIFT,
	.wkdep_srcs	= mpu_am35x_wkdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
};

static struct clockdomain neon_clkdm = {
	.name		= "neon_clkdm",
	.pwrdm		= { .name = "neon_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.wkdep_srcs	= neon_wkdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK,
};

static struct clockdomain iva2_clkdm = {
	.name		= "iva2_clkdm",
	.pwrdm		= { .name = "iva2_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.dep_bit	= OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
	.wkdep_srcs	= iva2_wkdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK,
};

static struct clockdomain gfx_3430es1_clkdm = {
	.name		= "gfx_clkdm",
	.pwrdm		= { .name = "gfx_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.wkdep_srcs	= gfx_sgx_3xxx_wkdeps,
	.sleepdep_srcs	= gfx_sgx_sleepdeps,
	.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK,
};

static struct clockdomain sgx_clkdm = {
	.name		= "sgx_clkdm",
	.pwrdm		= { .name = "sgx_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.wkdep_srcs	= gfx_sgx_3xxx_wkdeps,
	.sleepdep_srcs	= gfx_sgx_sleepdeps,
	.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
};

static struct clockdomain sgx_am35x_clkdm = {
	.name		= "sgx_clkdm",
	.pwrdm		= { .name = "sgx_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.wkdep_srcs	= gfx_sgx_am35x_wkdeps,
	.sleepdep_srcs	= gfx_sgx_sleepdeps,
	.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
};

/*
 * The die-to-die clockdomain was documented in the 34xx ES1 TRM, but
 * then that information was removed from the 34xx ES2+ TRM.  It is
 * unclear whether the core is still there, but the clockdomain logic
 * is there, and must be programmed to an appropriate state if the
 * CORE clockdomain is to become inactive.
 */
static struct clockdomain d2d_clkdm = {
	.name		= "d2d_clkdm",
	.pwrdm		= { .name = "core_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK,
};

/*
 * XXX add usecounting for clkdm dependencies, otherwise the presence
 * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
 * could cause trouble
 */
static struct clockdomain core_l3_3xxx_clkdm = {
	.name		= "core_l3_clkdm",
	.pwrdm		= { .name = "core_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP,
	.dep_bit	= OMAP3430_EN_CORE_SHIFT,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK,
};

/*
 * XXX add usecounting for clkdm dependencies, otherwise the presence
 * of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
 * could cause trouble
 */
static struct clockdomain core_l4_3xxx_clkdm = {
	.name		= "core_l4_clkdm",
	.pwrdm		= { .name = "core_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP,
	.dep_bit	= OMAP3430_EN_CORE_SHIFT,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK,
};

/* Another case of bit name collisions between several registers: EN_DSS */
static struct clockdomain dss_3xxx_clkdm = {
	.name		= "dss_clkdm",
	.pwrdm		= { .name = "dss_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.dep_bit	= OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
	.wkdep_srcs	= dss_wkdeps,
	.sleepdep_srcs	= dss_sleepdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK,
};

static struct clockdomain dss_am35x_clkdm = {
	.name		= "dss_clkdm",
	.pwrdm		= { .name = "dss_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.dep_bit	= OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
	.wkdep_srcs	= dss_am35x_wkdeps,
	.sleepdep_srcs	= dss_am35x_sleepdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK,
};

static struct clockdomain cam_clkdm = {
	.name		= "cam_clkdm",
	.pwrdm		= { .name = "cam_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.wkdep_srcs	= cam_wkdeps,
	.sleepdep_srcs	= cam_sleepdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK,
};

static struct clockdomain usbhost_clkdm = {
	.name		= "usbhost_clkdm",
	.pwrdm		= { .name = "usbhost_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.wkdep_srcs	= usbhost_wkdeps,
	.sleepdep_srcs	= usbhost_sleepdeps,
	.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
};

static struct clockdomain usbhost_am35x_clkdm = {
	.name		= "usbhost_clkdm",
	.pwrdm		= { .name = "core_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.wkdep_srcs	= usbhost_am35x_wkdeps,
	.sleepdep_srcs	= usbhost_am35x_sleepdeps,
	.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
};

static struct clockdomain per_clkdm = {
	.name		= "per_clkdm",
	.pwrdm		= { .name = "per_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.dep_bit	= OMAP3430_EN_PER_SHIFT,
	.wkdep_srcs	= per_wkdeps,
	.sleepdep_srcs	= per_sleepdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK,
};

static struct clockdomain per_am35x_clkdm = {
	.name		= "per_clkdm",
	.pwrdm		= { .name = "per_pwrdm" },
	.flags		= CLKDM_CAN_HWSUP_SWSUP,
	.dep_bit	= OMAP3430_EN_PER_SHIFT,
	.wkdep_srcs	= per_am35x_wkdeps,
	.sleepdep_srcs	= per_am35x_sleepdeps,
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK,
};

static struct clockdomain emu_clkdm = {
	.name		= "emu_clkdm",
	.pwrdm		= { .name = "emu_pwrdm" },
	.flags		= (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_SWSUP |
			   CLKDM_MISSING_IDLE_REPORTING),
	.clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK,
};

static struct clockdomain dpll1_clkdm = {
	.name		= "dpll1_clkdm",
	.pwrdm		= { .name = "dpll1_pwrdm" },
};

static struct clockdomain dpll2_clkdm = {
	.name		= "dpll2_clkdm",
	.pwrdm		= { .name = "dpll2_pwrdm" },
};

static struct clockdomain dpll3_clkdm = {
	.name		= "dpll3_clkdm",
	.pwrdm		= { .name = "dpll3_pwrdm" },
};

static struct clockdomain dpll4_clkdm = {
	.name		= "dpll4_clkdm",
	.pwrdm		= { .name = "dpll4_pwrdm" },
};

static struct clockdomain dpll5_clkdm = {
	.name		= "dpll5_clkdm",
	.pwrdm		= { .name = "dpll5_pwrdm" },
};

/*
 * Clockdomain hwsup dependencies
 */

static struct clkdm_autodep clkdm_autodeps[] = {
	{
		.clkdm = { .name = "mpu_clkdm" },
	},
	{
		.clkdm = { .name = "iva2_clkdm" },
	},
	{
		.clkdm = { .name = NULL },
	}
};

static struct clkdm_autodep clkdm_am35x_autodeps[] = {
	{
		.clkdm = { .name = "mpu_clkdm" },
	},
	{
		.clkdm = { .name = NULL },
	}
};

/*
 *
 */

static struct clockdomain *clockdomains_common[] __initdata = {
	&wkup_common_clkdm,
	&neon_clkdm,
	&core_l3_3xxx_clkdm,
	&core_l4_3xxx_clkdm,
	&emu_clkdm,
	&dpll1_clkdm,
	&dpll3_clkdm,
	&dpll4_clkdm,
	NULL
};

static struct clockdomain *clockdomains_omap3430[] __initdata = {
	&mpu_3xxx_clkdm,
	&iva2_clkdm,
	&d2d_clkdm,
	&dss_3xxx_clkdm,
	&cam_clkdm,
	&per_clkdm,
	&dpll2_clkdm,
	NULL
};

static struct clockdomain *clockdomains_omap3430es1[] __initdata = {
	&gfx_3430es1_clkdm,
	NULL,
};

static struct clockdomain *clockdomains_omap3430es2plus[] __initdata = {
	&sgx_clkdm,
	&dpll5_clkdm,
	&usbhost_clkdm,
	NULL,
};

static struct clockdomain *clockdomains_am35x[] __initdata = {
	&mpu_am35x_clkdm,
	&sgx_am35x_clkdm,
	&dss_am35x_clkdm,
	&per_am35x_clkdm,
	&usbhost_am35x_clkdm,
	&dpll5_clkdm,
	NULL
};

void __init omap3xxx_clockdomains_init(void)
{
	struct clockdomain **sc;
	unsigned int rev;

	if (!cpu_is_omap34xx())
		return;

	clkdm_register_platform_funcs(&omap3_clkdm_operations);
	clkdm_register_clkdms(clockdomains_common);

	rev = omap_rev();

	if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) {
		clkdm_register_clkdms(clockdomains_am35x);
		clkdm_register_autodeps(clkdm_am35x_autodeps);
	} else {
		clkdm_register_clkdms(clockdomains_omap3430);

		sc = (rev == OMAP3430_REV_ES1_0) ?
			clockdomains_omap3430es1 : clockdomains_omap3430es2plus;

		clkdm_register_clkdms(sc);
		clkdm_register_autodeps(clkdm_autodeps);
	}

	clkdm_complete_init();
}