summaryrefslogtreecommitdiffstats
path: root/drivers/clk/berlin/bg2.c
blob: 1d99292e2039ee5ff6e187e4e0cdbddf85d860e1 (plain)
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
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
/*
 * Copyright (c) 2014 Marvell Technology Group Ltd.
 *
 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>

#include <dt-bindings/clock/berlin2.h>

#include "berlin2-avpll.h"
#include "berlin2-div.h"
#include "berlin2-pll.h"
#include "common.h"

#define REG_PINMUX0		0x0000
#define REG_PINMUX1		0x0004
#define REG_SYSPLLCTL0		0x0014
#define REG_SYSPLLCTL4		0x0024
#define REG_MEMPLLCTL0		0x0028
#define REG_MEMPLLCTL4		0x0038
#define REG_CPUPLLCTL0		0x003c
#define REG_CPUPLLCTL4		0x004c
#define REG_AVPLLCTL0		0x0050
#define REG_AVPLLCTL31		0x00cc
#define REG_AVPLLCTL62		0x0148
#define REG_PLLSTATUS		0x014c
#define REG_CLKENABLE		0x0150
#define REG_CLKSELECT0		0x0154
#define REG_CLKSELECT1		0x0158
#define REG_CLKSELECT2		0x015c
#define REG_CLKSELECT3		0x0160
#define REG_CLKSWITCH0		0x0164
#define REG_CLKSWITCH1		0x0168
#define REG_RESET_TRIGGER	0x0178
#define REG_RESET_STATUS0	0x017c
#define REG_RESET_STATUS1	0x0180
#define REG_SW_GENERIC0		0x0184
#define REG_SW_GENERIC3		0x0190
#define REG_PRODUCTID		0x01cc
#define REG_PRODUCTID_EXT	0x01d0
#define REG_GFX3DCORE_CLKCTL	0x022c
#define REG_GFX3DSYS_CLKCTL	0x0230
#define REG_ARC_CLKCTL		0x0234
#define REG_VIP_CLKCTL		0x0238
#define REG_SDIO0XIN_CLKCTL	0x023c
#define REG_SDIO1XIN_CLKCTL	0x0240
#define REG_GFX3DEXTRA_CLKCTL	0x0244
#define REG_GFX3D_RESET		0x0248
#define REG_GC360_CLKCTL	0x024c
#define REG_SDIO_DLLMST_CLKCTL	0x0250

/*
 * BG2/BG2CD SoCs have the following audio/video I/O units:
 *
 * audiohd: HDMI TX audio
 * audio0:  7.1ch TX
 * audio1:  2ch TX
 * audio2:  2ch RX
 * audio3:  SPDIF TX
 * video0:  HDMI video
 * video1:  Secondary video
 * video2:  SD auxiliary video
 *
 * There are no external audio clocks (ACLKI0, ACLKI1) and
 * only one external video clock (VCLKI0).
 *
 * Currently missing bits and pieces:
 * - audio_fast_pll is unknown
 * - audiohd_pll is unknown
 * - video0_pll is unknown
 * - audio[023], audiohd parent pll is assumed to be audio_fast_pll
 *
 */

#define	MAX_CLKS 41
static struct clk_hw_onecell_data *clk_data;
static DEFINE_SPINLOCK(lock);
static void __iomem *gbase;

enum {
	REFCLK, VIDEO_EXT0,
	SYSPLL, MEMPLL, CPUPLL,
	AVPLL_A1, AVPLL_A2, AVPLL_A3, AVPLL_A4,
	AVPLL_A5, AVPLL_A6, AVPLL_A7, AVPLL_A8,
	AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4,
	AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8,
	AUDIO1_PLL, AUDIO_FAST_PLL,
	VIDEO0_PLL, VIDEO0_IN,
	VIDEO1_PLL, VIDEO1_IN,
	VIDEO2_PLL, VIDEO2_IN,
};

static const char *clk_names[] = {
	[REFCLK]		= "refclk",
	[VIDEO_EXT0]		= "video_ext0",
	[SYSPLL]		= "syspll",
	[MEMPLL]		= "mempll",
	[CPUPLL]		= "cpupll",
	[AVPLL_A1]		= "avpll_a1",
	[AVPLL_A2]		= "avpll_a2",
	[AVPLL_A3]		= "avpll_a3",
	[AVPLL_A4]		= "avpll_a4",
	[AVPLL_A5]		= "avpll_a5",
	[AVPLL_A6]		= "avpll_a6",
	[AVPLL_A7]		= "avpll_a7",
	[AVPLL_A8]		= "avpll_a8",
	[AVPLL_B1]		= "avpll_b1",
	[AVPLL_B2]		= "avpll_b2",
	[AVPLL_B3]		= "avpll_b3",
	[AVPLL_B4]		= "avpll_b4",
	[AVPLL_B5]		= "avpll_b5",
	[AVPLL_B6]		= "avpll_b6",
	[AVPLL_B7]		= "avpll_b7",
	[AVPLL_B8]		= "avpll_b8",
	[AUDIO1_PLL]		= "audio1_pll",
	[AUDIO_FAST_PLL]	= "audio_fast_pll",
	[VIDEO0_PLL]		= "video0_pll",
	[VIDEO0_IN]		= "video0_in",
	[VIDEO1_PLL]		= "video1_pll",
	[VIDEO1_IN]		= "video1_in",
	[VIDEO2_PLL]		= "video2_pll",
	[VIDEO2_IN]		= "video2_in",
};

static const struct berlin2_pll_map bg2_pll_map __initconst = {
	.vcodiv		= {10, 15, 20, 25, 30, 40, 50, 60, 80},
	.mult		= 10,
	.fbdiv_shift	= 6,
	.rfdiv_shift	= 1,
	.divsel_shift	= 7,
};

static const u8 default_parent_ids[] = {
	SYSPLL, AVPLL_B4, AVPLL_A5, AVPLL_B6, AVPLL_B7, SYSPLL
};

static const struct berlin2_div_data bg2_divs[] __initconst = {
	{
		.name = "sys",
		.parent_ids = (const u8 []){
			SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL
		},
		.num_parents = 6,
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 0),
			BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0),
			BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = CLK_IGNORE_UNUSED,
	},
	{
		.name = "cpu",
		.parent_ids = (const u8 []){
			CPUPLL, MEMPLL, MEMPLL, MEMPLL, MEMPLL
		},
		.num_parents = 5,
		.map = {
			BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6),
			BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8),
		},
		.div_flags = BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "drmfigo",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 16),
			BERLIN2_PLL_SELECT(REG_CLKSELECT0, 17),
			BERLIN2_DIV_SELECT(REG_CLKSELECT0, 20),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "cfg",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 1),
			BERLIN2_PLL_SELECT(REG_CLKSELECT0, 23),
			BERLIN2_DIV_SELECT(REG_CLKSELECT0, 26),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "gfx",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 4),
			BERLIN2_PLL_SELECT(REG_CLKSELECT0, 29),
			BERLIN2_DIV_SELECT(REG_CLKSELECT1, 0),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "zsp",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 5),
			BERLIN2_PLL_SELECT(REG_CLKSELECT1, 3),
			BERLIN2_DIV_SELECT(REG_CLKSELECT1, 6),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "perif",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 6),
			BERLIN2_PLL_SELECT(REG_CLKSELECT1, 9),
			BERLIN2_DIV_SELECT(REG_CLKSELECT1, 12),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = CLK_IGNORE_UNUSED,
	},
	{
		.name = "pcube",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 2),
			BERLIN2_PLL_SELECT(REG_CLKSELECT1, 15),
			BERLIN2_DIV_SELECT(REG_CLKSELECT1, 18),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "vscope",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 3),
			BERLIN2_PLL_SELECT(REG_CLKSELECT1, 21),
			BERLIN2_DIV_SELECT(REG_CLKSELECT1, 24),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "nfc_ecc",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 18),
			BERLIN2_PLL_SELECT(REG_CLKSELECT1, 27),
			BERLIN2_DIV_SELECT(REG_CLKSELECT2, 0),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "vpp",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 21),
			BERLIN2_PLL_SELECT(REG_CLKSELECT2, 3),
			BERLIN2_DIV_SELECT(REG_CLKSELECT2, 6),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 4),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 5),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 6),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "app",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 20),
			BERLIN2_PLL_SELECT(REG_CLKSELECT2, 9),
			BERLIN2_DIV_SELECT(REG_CLKSELECT2, 12),
			BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 7),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 8),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 9),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "audio0",
		.parent_ids = (const u8 []){ AUDIO_FAST_PLL },
		.num_parents = 1,
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 22),
			BERLIN2_DIV_SELECT(REG_CLKSELECT2, 17),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 10),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 11),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE,
		.flags = 0,
	},
	{
		.name = "audio2",
		.parent_ids = (const u8 []){ AUDIO_FAST_PLL },
		.num_parents = 1,
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 24),
			BERLIN2_DIV_SELECT(REG_CLKSELECT2, 20),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 14),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 15),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE,
		.flags = 0,
	},
	{
		.name = "audio3",
		.parent_ids = (const u8 []){ AUDIO_FAST_PLL },
		.num_parents = 1,
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 25),
			BERLIN2_DIV_SELECT(REG_CLKSELECT2, 23),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 16),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 17),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE,
		.flags = 0,
	},
	{
		.name = "audio1",
		.parent_ids = (const u8 []){ AUDIO1_PLL },
		.num_parents = 1,
		.map = {
			BERLIN2_DIV_GATE(REG_CLKENABLE, 23),
			BERLIN2_DIV_SELECT(REG_CLKSELECT3, 0),
			BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 12),
			BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 13),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE,
		.flags = 0,
	},
	{
		.name = "gfx3d_core",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_GFX3DCORE_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "gfx3d_sys",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_GFX3DSYS_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "arc",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_ARC_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "vip",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_VIP_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "sdio0xin",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "sdio1xin",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "gfx3d_extra",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_GFX3DEXTRA_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "gc360",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_GC360_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
	{
		.name = "sdio_dllmst",
		.parent_ids = default_parent_ids,
		.num_parents = ARRAY_SIZE(default_parent_ids),
		.map = {
			BERLIN2_SINGLE_DIV(REG_SDIO_DLLMST_CLKCTL),
		},
		.div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
		.flags = 0,
	},
};

static const struct berlin2_gate_data bg2_gates[] __initconst = {
	{ "geth0",	"perif",	7 },
	{ "geth1",	"perif",	8 },
	{ "sata",	"perif",	9 },
	{ "ahbapb",	"perif",	10, CLK_IGNORE_UNUSED },
	{ "usb0",	"perif",	11 },
	{ "usb1",	"perif",	12 },
	{ "pbridge",	"perif",	13, CLK_IGNORE_UNUSED },
	{ "sdio0",	"perif",	14 },
	{ "sdio1",	"perif",	15 },
	{ "nfc",	"perif",	17 },
	{ "smemc",	"perif",	19 },
	{ "audiohd",	"audiohd_pll",	26 },
	{ "video0",	"video0_in",	27 },
	{ "video1",	"video1_in",	28 },
	{ "video2",	"video2_in",	29 },
};

static void __init berlin2_clock_setup(struct device_node *np)
{
	struct device_node *parent_np = of_get_parent(np);
	const char *parent_names[9];
	struct clk *clk;
	struct clk_hw *hw;
	struct clk_hw **hws;
	u8 avpll_flags = 0;
	int n, ret;

	clk_data = kzalloc(sizeof(*clk_data) +
			   sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL);
	if (!clk_data)
		return;
	clk_data->num = MAX_CLKS;
	hws = clk_data->hws;

	gbase = of_iomap(parent_np, 0);
	if (!gbase)
		return;

	/* overwrite default clock names with DT provided ones */
	clk = of_clk_get_by_name(np, clk_names[REFCLK]);
	if (!IS_ERR(clk)) {
		clk_names[REFCLK] = __clk_get_name(clk);
		clk_put(clk);
	}

	clk = of_clk_get_by_name(np, clk_names[VIDEO_EXT0]);
	if (!IS_ERR(clk)) {
		clk_names[VIDEO_EXT0] = __clk_get_name(clk);
		clk_put(clk);
	}

	/* simple register PLLs */
	ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_SYSPLLCTL0,
				   clk_names[SYSPLL], clk_names[REFCLK], 0);
	if (ret)
		goto bg2_fail;

	ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_MEMPLLCTL0,
				   clk_names[MEMPLL], clk_names[REFCLK], 0);
	if (ret)
		goto bg2_fail;

	ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_CPUPLLCTL0,
				   clk_names[CPUPLL], clk_names[REFCLK], 0);
	if (ret)
		goto bg2_fail;

	if (of_device_is_compatible(np, "marvell,berlin2-global-register"))
		avpll_flags |= BERLIN2_AVPLL_SCRAMBLE_QUIRK;

	/* audio/video VCOs */
	ret = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL0, "avpll_vcoA",
			 clk_names[REFCLK], avpll_flags, 0);
	if (ret)
		goto bg2_fail;

	for (n = 0; n < 8; n++) {
		ret = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL0,
			     clk_names[AVPLL_A1 + n], n, "avpll_vcoA",
			     avpll_flags, 0);
		if (ret)
			goto bg2_fail;
	}

	ret = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL31, "avpll_vcoB",
				 clk_names[REFCLK], BERLIN2_AVPLL_BIT_QUIRK |
				 avpll_flags, 0);
	if (ret)
		goto bg2_fail;

	for (n = 0; n < 8; n++) {
		ret = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL31,
			     clk_names[AVPLL_B1 + n], n, "avpll_vcoB",
			     BERLIN2_AVPLL_BIT_QUIRK | avpll_flags, 0);
		if (ret)
			goto bg2_fail;
	}

	/* reference clock bypass switches */
	parent_names[0] = clk_names[SYSPLL];
	parent_names[1] = clk_names[REFCLK];
	hw = clk_hw_register_mux(NULL, "syspll_byp", parent_names, 2,
			       0, gbase + REG_CLKSWITCH0, 0, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;
	clk_names[SYSPLL] = clk_hw_get_name(hw);

	parent_names[0] = clk_names[MEMPLL];
	parent_names[1] = clk_names[REFCLK];
	hw = clk_hw_register_mux(NULL, "mempll_byp", parent_names, 2,
			       0, gbase + REG_CLKSWITCH0, 1, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;
	clk_names[MEMPLL] = clk_hw_get_name(hw);

	parent_names[0] = clk_names[CPUPLL];
	parent_names[1] = clk_names[REFCLK];
	hw = clk_hw_register_mux(NULL, "cpupll_byp", parent_names, 2,
			       0, gbase + REG_CLKSWITCH0, 2, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;
	clk_names[CPUPLL] = clk_hw_get_name(hw);

	/* clock muxes */
	parent_names[0] = clk_names[AVPLL_B3];
	parent_names[1] = clk_names[AVPLL_A3];
	hw = clk_hw_register_mux(NULL, clk_names[AUDIO1_PLL], parent_names, 2,
			       0, gbase + REG_CLKSELECT2, 29, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;

	parent_names[0] = clk_names[VIDEO0_PLL];
	parent_names[1] = clk_names[VIDEO_EXT0];
	hw = clk_hw_register_mux(NULL, clk_names[VIDEO0_IN], parent_names, 2,
			       0, gbase + REG_CLKSELECT3, 4, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;

	parent_names[0] = clk_names[VIDEO1_PLL];
	parent_names[1] = clk_names[VIDEO_EXT0];
	hw = clk_hw_register_mux(NULL, clk_names[VIDEO1_IN], parent_names, 2,
			       0, gbase + REG_CLKSELECT3, 6, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;

	parent_names[0] = clk_names[AVPLL_A2];
	parent_names[1] = clk_names[AVPLL_B2];
	hw = clk_hw_register_mux(NULL, clk_names[VIDEO1_PLL], parent_names, 2,
			       0, gbase + REG_CLKSELECT3, 7, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;

	parent_names[0] = clk_names[VIDEO2_PLL];
	parent_names[1] = clk_names[VIDEO_EXT0];
	hw = clk_hw_register_mux(NULL, clk_names[VIDEO2_IN], parent_names, 2,
			       0, gbase + REG_CLKSELECT3, 9, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;

	parent_names[0] = clk_names[AVPLL_B1];
	parent_names[1] = clk_names[AVPLL_A5];
	hw = clk_hw_register_mux(NULL, clk_names[VIDEO2_PLL], parent_names, 2,
			       0, gbase + REG_CLKSELECT3, 10, 1, 0, &lock);
	if (IS_ERR(hw))
		goto bg2_fail;

	/* clock divider cells */
	for (n = 0; n < ARRAY_SIZE(bg2_divs); n++) {
		const struct berlin2_div_data *dd = &bg2_divs[n];
		int k;

		for (k = 0; k < dd->num_parents; k++)
			parent_names[k] = clk_names[dd->parent_ids[k]];

		hws[CLKID_SYS + n] = berlin2_div_register(&dd->map, gbase,
				dd->name, dd->div_flags, parent_names,
				dd->num_parents, dd->flags, &lock);
	}

	/* clock gate cells */
	for (n = 0; n < ARRAY_SIZE(bg2_gates); n++) {
		const struct berlin2_gate_data *gd = &bg2_gates[n];

		hws[CLKID_GETH0 + n] = clk_hw_register_gate(NULL, gd->name,
			    gd->parent_name, gd->flags, gbase + REG_CLKENABLE,
			    gd->bit_idx, 0, &lock);
	}

	/* twdclk is derived from cpu/3 */
	hws[CLKID_TWD] =
		clk_hw_register_fixed_factor(NULL, "twd", "cpu", 0, 1, 3);

	/* check for errors on leaf clocks */
	for (n = 0; n < MAX_CLKS; n++) {
		if (!IS_ERR(hws[n]))
			continue;

		pr_err("%s: Unable to register leaf clock %d\n",
		       np->full_name, n);
		goto bg2_fail;
	}

	/* register clk-provider */
	of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);

	return;

bg2_fail:
	iounmap(gbase);
}
CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk",
	       berlin2_clock_setup);
OpenPOWER on IntegriCloud