summaryrefslogtreecommitdiff
path: root/arch/arm/mach-shmobile/clock-r8a7740.c
blob: 969e85dad09b3588775a4cdd9de0c9229bcef8d4 (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
/*
 * R8A7740 processor support
 *
 * Copyright (C) 2011  Renesas Solutions Corp.
 * Copyright (C) 2011  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License
 *
 * This program is distributed in the hope that 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.
 */
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/sh_clk.h>
#include <linux/clkdev.h>

#include "clock.h"
#include "common.h"
#include "r8a7740.h"

/*
 *        |  MDx  |  XTAL1/EXTAL1   |  System   | EXTALR |
 *  Clock |-------+-----------------+  clock    | 32.768 |   RCLK
 *  Mode  | 2/1/0 | src         MHz |  source   |  KHz   |  source
 * -------+-------+-----------------+-----------+--------+----------
 *    0   | 0 0 0 | External  20~50 | XTAL1     |    O   |  EXTALR
 *    1   | 0 0 1 | Crystal   20~30 | XTAL1     |    O   |  EXTALR
 *    2   | 0 1 0 | External  40~50 | XTAL1 / 2 |    O   |  EXTALR
 *    3   | 0 1 1 | Crystal   40~50 | XTAL1 / 2 |    O   |  EXTALR
 *    4   | 1 0 0 | External  20~50 | XTAL1     |    x   |  XTAL1 / 1024
 *    5   | 1 0 1 | Crystal   20~30 | XTAL1     |    x   |  XTAL1 / 1024
 *    6   | 1 1 0 | External  40~50 | XTAL1 / 2 |    x   |  XTAL1 / 2048
 *    7   | 1 1 1 | Crystal   40~50 | XTAL1 / 2 |    x   |  XTAL1 / 2048
 */

/* CPG registers */
#define FRQCRA		IOMEM(0xe6150000)
#define FRQCRB		IOMEM(0xe6150004)
#define VCLKCR1		IOMEM(0xE6150008)
#define VCLKCR2		IOMEM(0xE615000c)
#define FRQCRC		IOMEM(0xe61500e0)
#define FSIACKCR	IOMEM(0xe6150018)
#define PLLC01CR	IOMEM(0xe6150028)

#define SUBCKCR		IOMEM(0xe6150080)
#define USBCKCR		IOMEM(0xe615008c)

#define MSTPSR0		IOMEM(0xe6150030)
#define MSTPSR1		IOMEM(0xe6150038)
#define MSTPSR2		IOMEM(0xe6150040)
#define MSTPSR3		IOMEM(0xe6150048)
#define MSTPSR4		IOMEM(0xe615004c)
#define FSIBCKCR	IOMEM(0xe6150090)
#define HDMICKCR	IOMEM(0xe6150094)
#define SMSTPCR0	IOMEM(0xe6150130)
#define SMSTPCR1	IOMEM(0xe6150134)
#define SMSTPCR2	IOMEM(0xe6150138)
#define SMSTPCR3	IOMEM(0xe615013c)
#define SMSTPCR4	IOMEM(0xe6150140)

#define FSIDIVA		IOMEM(0xFE1F8000)
#define FSIDIVB		IOMEM(0xFE1F8008)

/* Fixed 32 KHz root clock from EXTALR pin */
static struct clk extalr_clk = {
	.rate	= 32768,
};

/*
 * 25MHz default rate for the EXTAL1 root input clock.
 * If needed, reset this with clk_set_rate() from the platform code.
 */
static struct clk extal1_clk = {
	.rate	= 25000000,
};

/*
 * 48MHz default rate for the EXTAL2 root input clock.
 * If needed, reset this with clk_set_rate() from the platform code.
 */
static struct clk extal2_clk = {
	.rate	= 48000000,
};

/*
 * 27MHz default rate for the DV_CLKI root input clock.
 * If needed, reset this with clk_set_rate() from the platform code.
 */
static struct clk dv_clk = {
	.rate	= 27000000,
};

SH_CLK_RATIO(div2,	1, 2);
SH_CLK_RATIO(div1k,	1, 1024);

SH_FIXED_RATIO_CLK(extal1_div2_clk,	extal1_clk,		div2);
SH_FIXED_RATIO_CLK(extal1_div1024_clk,	extal1_clk,		div1k);
SH_FIXED_RATIO_CLK(extal1_div2048_clk,	extal1_div2_clk,	div1k);
SH_FIXED_RATIO_CLK(extal2_div2_clk,	extal2_clk,		div2);

static struct sh_clk_ops followparent_clk_ops = {
	.recalc	= followparent_recalc,
};

/* Main clock */
static struct clk system_clk = {
	.ops	= &followparent_clk_ops,
};

SH_FIXED_RATIO_CLK(system_div2_clk, system_clk,	div2);

/* r_clk */
static struct clk r_clk = {
	.ops	= &followparent_clk_ops,
};

/* PLLC0/PLLC1 */
static unsigned long pllc01_recalc(struct clk *clk)
{
	unsigned long mult = 1;

	if (__raw_readl(PLLC01CR) & (1 << 14))
		mult = ((__raw_readl(clk->enable_reg) >> 24) & 0x7f) + 1;

	return clk->parent->rate * mult;
}

static struct sh_clk_ops pllc01_clk_ops = {
	.recalc		= pllc01_recalc,
};

static struct clk pllc0_clk = {
	.ops		= &pllc01_clk_ops,
	.flags		= CLK_ENABLE_ON_INIT,
	.parent		= &system_clk,
	.enable_reg	= (void __iomem *)FRQCRC,
};

static struct clk pllc1_clk = {
	.ops		= &pllc01_clk_ops,
	.flags		= CLK_ENABLE_ON_INIT,
	.parent		= &system_div2_clk,
	.enable_reg	= (void __iomem *)FRQCRA,
};

/* PLLC1 / 2 */
SH_FIXED_RATIO_CLK(pllc1_div2_clk, pllc1_clk, div2);

/* USB clock */
/*
 * USBCKCR is controlling usb24 clock
 * bit[7] : parent clock
 * bit[6] : clock divide rate
 * And this bit[7] is used as a "usb24s" from other devices.
 * (Video clock / Sub clock / SPU clock)
 * You can controll this clock as a below.
 *
 * struct clk *usb24	= clk_get(dev,  "usb24");
 * struct clk *usb24s	= clk_get(NULL, "usb24s");
 * struct clk *system	= clk_get(NULL, "system_clk");
 * int rate = clk_get_rate(system);
 *
 * clk_set_parent(usb24s, system);  // for bit[7]
 * clk_set_rate(usb24, rate / 2);   // for bit[6]
 */
static struct clk *usb24s_parents[] = {
	[0] = &system_clk,
	[1] = &extal2_clk
};

static int usb24s_enable(struct clk *clk)
{
	__raw_writel(__raw_readl(USBCKCR) & ~(1 << 8), USBCKCR);

	return 0;
}

static void usb24s_disable(struct clk *clk)
{
	__raw_writel(__raw_readl(USBCKCR) | (1 << 8), USBCKCR);
}

static int usb24s_set_parent(struct clk *clk, struct clk *parent)
{
	int i, ret;
	u32 val;

	if (!clk->parent_table || !clk->parent_num)
		return -EINVAL;

	/* Search the parent */
	for (i = 0; i < clk->parent_num; i++)
		if (clk->parent_table[i] == parent)
			break;

	if (i == clk->parent_num)
		return -ENODEV;

	ret = clk_reparent(clk, parent);
	if (ret < 0)
		return ret;

	val = __raw_readl(USBCKCR);
	val &= ~(1 << 7);
	val |= i << 7;
	__raw_writel(val, USBCKCR);

	return 0;
}

static struct sh_clk_ops usb24s_clk_ops = {
	.recalc		= followparent_recalc,
	.enable		= usb24s_enable,
	.disable	= usb24s_disable,
	.set_parent	= usb24s_set_parent,
};

static struct clk usb24s_clk = {
	.ops		= &usb24s_clk_ops,
	.parent_table	= usb24s_parents,
	.parent_num	= ARRAY_SIZE(usb24s_parents),
	.parent		= &system_clk,
};

static unsigned long usb24_recalc(struct clk *clk)
{
	return clk->parent->rate /
		((__raw_readl(USBCKCR) & (1 << 6)) ? 1 : 2);
};

static int usb24_set_rate(struct clk *clk, unsigned long rate)
{
	u32 val;

	/* closer to which ? parent->rate or parent->rate/2 */
	val = __raw_readl(USBCKCR);
	val &= ~(1 << 6);
	val |= (rate > (clk->parent->rate / 4) * 3) << 6;
	__raw_writel(val, USBCKCR);

	return 0;
}

static struct sh_clk_ops usb24_clk_ops = {
	.recalc		= usb24_recalc,
	.set_rate	= usb24_set_rate,
};

static struct clk usb24_clk = {
	.ops		= &usb24_clk_ops,
	.parent		= &usb24s_clk,
};

/* External FSIACK/FSIBCK clock */
static struct clk fsiack_clk = {
};

static struct clk fsibck_clk = {
};

static struct clk *main_clks[] = {
	&extalr_clk,
	&extal1_clk,
	&extal2_clk,
	&extal1_div2_clk,
	&extal1_div1024_clk,
	&extal1_div2048_clk,
	&extal2_div2_clk,
	&dv_clk,
	&system_clk,
	&system_div2_clk,
	&r_clk,
	&pllc0_clk,
	&pllc1_clk,
	&pllc1_div2_clk,
	&usb24s_clk,
	&usb24_clk,
	&fsiack_clk,
	&fsibck_clk,
};

/* DIV4 clocks */
static void div4_kick(struct clk *clk)
{
	unsigned long value;

	/* set KICK bit in FRQCRB to update hardware setting */
	value = __raw_readl(FRQCRB);
	value |= (1 << 31);
	__raw_writel(value, FRQCRB);
}

static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
			  24, 32, 36, 48, 0, 72, 96, 0 };

static struct clk_div_mult_table div4_div_mult_table = {
	.divisors = divisors,
	.nr_divisors = ARRAY_SIZE(divisors),
};

static struct clk_div4_table div4_table = {
	.div_mult_table = &div4_div_mult_table,
	.kick = div4_kick,
};

enum {
	DIV4_I, DIV4_ZG, DIV4_B, DIV4_M1, DIV4_HP,
	DIV4_HPP, DIV4_USBP, DIV4_S, DIV4_ZB, DIV4_M3, DIV4_CP,
	DIV4_NR
};

static struct clk div4_clks[DIV4_NR] = {
	[DIV4_I]	= SH_CLK_DIV4(&pllc1_clk, FRQCRA, 20, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_ZG]	= SH_CLK_DIV4(&pllc1_clk, FRQCRA, 16, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_B]	= SH_CLK_DIV4(&pllc1_clk, FRQCRA,  8, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_M1]	= SH_CLK_DIV4(&pllc1_clk, FRQCRA,  4, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_HP]	= SH_CLK_DIV4(&pllc1_clk, FRQCRB,  4, 0x6fff, 0),
	[DIV4_HPP]	= SH_CLK_DIV4(&pllc1_clk, FRQCRC, 20, 0x6fff, 0),
	[DIV4_USBP]	= SH_CLK_DIV4(&pllc1_clk, FRQCRC, 16, 0x6fff, 0),
	[DIV4_S]	= SH_CLK_DIV4(&pllc1_clk, FRQCRC, 12, 0x6fff, 0),
	[DIV4_ZB]	= SH_CLK_DIV4(&pllc1_clk, FRQCRC,  8, 0x6fff, 0),
	[DIV4_M3]	= SH_CLK_DIV4(&pllc1_clk, FRQCRC,  4, 0x6fff, 0),
	[DIV4_CP]	= SH_CLK_DIV4(&pllc1_clk, FRQCRC,  0, 0x6fff, 0),
};

/* DIV6 reparent */
enum {
	DIV6_HDMI,
	DIV6_VCLK1, DIV6_VCLK2,
	DIV6_FSIA, DIV6_FSIB,
	DIV6_REPARENT_NR,
};

static struct clk *hdmi_parent[] = {
	[0] = &pllc1_div2_clk,
	[1] = &system_clk,
	[2] = &dv_clk
};

static struct clk *vclk_parents[8] = {
	[0] = &pllc1_div2_clk,
	[2] = &dv_clk,
	[3] = &usb24s_clk,
	[4] = &extal1_div2_clk,
	[5] = &extalr_clk,
};

static struct clk *fsia_parents[] = {
	[0] = &pllc1_div2_clk,
	[1] = &fsiack_clk, /* external clock */
};

static struct clk *fsib_parents[] = {
	[0] = &pllc1_div2_clk,
	[1] = &fsibck_clk, /* external clock */
};

static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
	[DIV6_HDMI] = SH_CLK_DIV6_EXT(HDMICKCR, 0,
				      hdmi_parent, ARRAY_SIZE(hdmi_parent), 6, 2),
	[DIV6_VCLK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0,
				       vclk_parents, ARRAY_SIZE(vclk_parents), 12, 3),
	[DIV6_VCLK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0,
				       vclk_parents, ARRAY_SIZE(vclk_parents), 12, 3),
	[DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0,
				      fsia_parents, ARRAY_SIZE(fsia_parents), 6, 2),
	[DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0,
				      fsib_parents, ARRAY_SIZE(fsib_parents), 6, 2),
};

/* DIV6 clocks */
enum {
	DIV6_SUB,
	DIV6_NR
};

static struct clk div6_clks[DIV6_NR] = {
	[DIV6_SUB]	= SH_CLK_DIV6(&pllc1_div2_clk, SUBCKCR, 0),
};

/* HDMI1/2 clock */
static unsigned long hdmi12_recalc(struct clk *clk)
{
	u32 val = __raw_readl(HDMICKCR);
	int shift = (int)clk->priv;

	val >>= shift;
	val &= 0x3;

	return clk->parent->rate / (1 << val);
};

static int hdmi12_set_rate(struct clk *clk, unsigned long rate)
{
	u32 val, mask;
	int i, shift;

	for (i = 0; i < 3; i++)
		if (rate == clk->parent->rate / (1 << i))
			goto find;
	return -ENODEV;

find:
	shift = (int)clk->priv;

	val = __raw_readl(HDMICKCR);
	mask = ~(0x3 << shift);
	val = (val & mask) | i << shift;
	__raw_writel(val, HDMICKCR);

	return 0;
};

static struct sh_clk_ops hdmi12_clk_ops = {
	.recalc		= hdmi12_recalc,
	.set_rate	= hdmi12_set_rate,
};

static struct clk hdmi1_clk = {
	.ops		= &hdmi12_clk_ops,
	.priv		= (void *)9,
	.parent		= &div6_reparent_clks[DIV6_HDMI],  /* late install */
};

static struct clk hdmi2_clk = {
	.ops		= &hdmi12_clk_ops,
	.priv		= (void *)11,
	.parent		= &div6_reparent_clks[DIV6_HDMI], /* late install */
};

static struct clk *late_main_clks[] = {
	&hdmi1_clk,
	&hdmi2_clk,
};

/* FSI DIV */
enum { FSIDIV_A, FSIDIV_B, FSIDIV_REPARENT_NR };

static struct clk fsidivs[] = {
	[FSIDIV_A] = SH_CLK_FSIDIV(FSIDIVA, &div6_reparent_clks[DIV6_FSIA]),
	[FSIDIV_B] = SH_CLK_FSIDIV(FSIDIVB, &div6_reparent_clks[DIV6_FSIB]),
};

/* MSTP */
enum {
	MSTP128, MSTP127, MSTP125,
	MSTP116, MSTP111, MSTP100, MSTP117,

	MSTP230,
	MSTP222,
	MSTP218, MSTP217, MSTP216, MSTP214,
	MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,

	MSTP329, MSTP328, MSTP323, MSTP320,
	MSTP314, MSTP313, MSTP312,
	MSTP309, MSTP304,

	MSTP416, MSTP415, MSTP407, MSTP406,

	MSTP_NR
};

static struct clk mstp_clks[MSTP_NR] = {
	[MSTP128] = SH_CLK_MSTP32(&div4_clks[DIV4_S],	SMSTPCR1, 28, 0), /* CEU21 */
	[MSTP127] = SH_CLK_MSTP32(&div4_clks[DIV4_S],	SMSTPCR1, 27, 0), /* CEU20 */
	[MSTP125] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR1, 25, 0), /* TMU0 */
	[MSTP117] = SH_CLK_MSTP32(&div4_clks[DIV4_B],	SMSTPCR1, 17, 0), /* LCDC1 */
	[MSTP116] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR1, 16, 0), /* IIC0 */
	[MSTP111] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR1, 11, 0), /* TMU1 */
	[MSTP100] = SH_CLK_MSTP32(&div4_clks[DIV4_B],	SMSTPCR1,  0, 0), /* LCDC0 */

	[MSTP230] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2, 30, 0), /* SCIFA6 */
	[MSTP222] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2, 22, 0), /* SCIFA7 */
	[MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR2, 18, 0), /* DMAC1 */
	[MSTP217] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR2, 17, 0), /* DMAC2 */
	[MSTP216] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR2, 16, 0), /* DMAC3 */
	[MSTP214] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],  SMSTPCR2, 14, 0), /* USBDMAC */
	[MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2,  7, 0), /* SCIFA5 */
	[MSTP206] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2,  6, 0), /* SCIFB */
	[MSTP204] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2,  4, 0), /* SCIFA0 */
	[MSTP203] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2,  3, 0), /* SCIFA1 */
	[MSTP202] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2,  2, 0), /* SCIFA2 */
	[MSTP201] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2,  1, 0), /* SCIFA3 */
	[MSTP200] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR2,  0, 0), /* SCIFA4 */

	[MSTP329] = SH_CLK_MSTP32(&r_clk,		SMSTPCR3, 29, 0), /* CMT10 */
	[MSTP328] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 28, 0), /* FSI */
	[MSTP323] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB],	SMSTPCR3, 23, 0), /* IIC1 */
	[MSTP320] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 20, 0), /* USBF */
	[MSTP314] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 14, 0), /* SDHI0 */
	[MSTP313] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 13, 0), /* SDHI1 */
	[MSTP312] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 12, 0), /* MMC */
	[MSTP309] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3,  9, 0), /* GEther */
	[MSTP304] = SH_CLK_MSTP32(&div4_clks[DIV4_CP],	SMSTPCR3,  4, 0), /* TPU0 */

	[MSTP416] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR4, 16, 0), /* USBHOST */
	[MSTP415] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR4, 15, 0), /* SDHI2 */
	[MSTP407] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR4,  7, 0), /* USB-Func */
	[MSTP406] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR4,  6, 0), /* USB Phy */
};

static struct clk_lookup lookups[] = {
	/* main clocks */
	CLKDEV_CON_ID("extalr",			&extalr_clk),
	CLKDEV_CON_ID("extal1",			&extal1_clk),
	CLKDEV_CON_ID("extal2",			&extal2_clk),
	CLKDEV_CON_ID("extal1_div2",		&extal1_div2_clk),
	CLKDEV_CON_ID("extal1_div1024",		&extal1_div1024_clk),
	CLKDEV_CON_ID("extal1_div2048",		&extal1_div2048_clk),
	CLKDEV_CON_ID("extal2_div2",		&extal2_div2_clk),
	CLKDEV_CON_ID("dv_clk",			&dv_clk),
	CLKDEV_CON_ID("system_clk",		&system_clk),
	CLKDEV_CON_ID("system_div2_clk",	&system_div2_clk),
	CLKDEV_CON_ID("r_clk",			&r_clk),
	CLKDEV_CON_ID("pllc0_clk",		&pllc0_clk),
	CLKDEV_CON_ID("pllc1_clk",		&pllc1_clk),
	CLKDEV_CON_ID("pllc1_div2_clk",		&pllc1_div2_clk),
	CLKDEV_CON_ID("usb24s",			&usb24s_clk),
	CLKDEV_CON_ID("hdmi1",			&hdmi1_clk),
	CLKDEV_CON_ID("hdmi2",			&hdmi2_clk),
	CLKDEV_CON_ID("video1",			&div6_reparent_clks[DIV6_VCLK1]),
	CLKDEV_CON_ID("video2",			&div6_reparent_clks[DIV6_VCLK2]),
	CLKDEV_CON_ID("fsiack",			&fsiack_clk),
	CLKDEV_CON_ID("fsibck",			&fsibck_clk),

	/* DIV4 clocks */
	CLKDEV_CON_ID("i_clk",			&div4_clks[DIV4_I]),
	CLKDEV_CON_ID("zg_clk",			&div4_clks[DIV4_ZG]),
	CLKDEV_CON_ID("b_clk",			&div4_clks[DIV4_B]),
	CLKDEV_CON_ID("m1_clk",			&div4_clks[DIV4_M1]),
	CLKDEV_CON_ID("hp_clk",			&div4_clks[DIV4_HP]),
	CLKDEV_CON_ID("hpp_clk",		&div4_clks[DIV4_HPP]),
	CLKDEV_CON_ID("s_clk",			&div4_clks[DIV4_S]),
	CLKDEV_CON_ID("zb_clk",			&div4_clks[DIV4_ZB]),
	CLKDEV_CON_ID("m3_clk",			&div4_clks[DIV4_M3]),
	CLKDEV_CON_ID("cp_clk",			&div4_clks[DIV4_CP]),

	/* DIV6 clocks */
	CLKDEV_CON_ID("sub_clk",		&div6_clks[DIV6_SUB]),

	/* MSTP32 clocks */
	CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0",	&mstp_clks[MSTP100]),
	CLKDEV_DEV_ID("i2c-sh_mobile.0",	&mstp_clks[MSTP116]),
	CLKDEV_DEV_ID("fff20000.i2c",		&mstp_clks[MSTP116]),
	CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1",	&mstp_clks[MSTP117]),
	CLKDEV_DEV_ID("sh_mobile_ceu.0",	&mstp_clks[MSTP127]),
	CLKDEV_DEV_ID("sh_mobile_ceu.1",	&mstp_clks[MSTP128]),

	CLKDEV_DEV_ID("sh-sci.4",		&mstp_clks[MSTP200]),
	CLKDEV_DEV_ID("e6c80000.serial",	&mstp_clks[MSTP200]),
	CLKDEV_DEV_ID("sh-sci.3",		&mstp_clks[MSTP201]),
	CLKDEV_DEV_ID("e6c70000.serial",	&mstp_clks[MSTP201]),
	CLKDEV_DEV_ID("sh-sci.2",		&mstp_clks[MSTP202]),
	CLKDEV_DEV_ID("e6c60000.serial",	&mstp_clks[MSTP202]),
	CLKDEV_DEV_ID("sh-sci.1",		&mstp_clks[MSTP203]),
	CLKDEV_DEV_ID("e6c50000.serial",	&mstp_clks[MSTP203]),
	CLKDEV_DEV_ID("sh-sci.0",		&mstp_clks[MSTP204]),
	CLKDEV_DEV_ID("e6c40000.serial",	&mstp_clks[MSTP204]),
	CLKDEV_DEV_ID("sh-sci.8",		&mstp_clks[MSTP206]),
	CLKDEV_DEV_ID("e6c30000.serial",	&mstp_clks[MSTP206]),
	CLKDEV_DEV_ID("sh-sci.5",		&mstp_clks[MSTP207]),
	CLKDEV_DEV_ID("e6cb0000.serial",	&mstp_clks[MSTP207]),
	CLKDEV_DEV_ID("sh-dma-engine.3",	&mstp_clks[MSTP214]),
	CLKDEV_DEV_ID("sh-dma-engine.2",	&mstp_clks[MSTP216]),
	CLKDEV_DEV_ID("sh-dma-engine.1",	&mstp_clks[MSTP217]),
	CLKDEV_DEV_ID("sh-dma-engine.0",	&mstp_clks[MSTP218]),
	CLKDEV_DEV_ID("sh-sci.7",		&mstp_clks[MSTP222]),
	CLKDEV_DEV_ID("e6cd0000.serial",	&mstp_clks[MSTP222]),
	CLKDEV_DEV_ID("sh-sci.6",		&mstp_clks[MSTP230]),
	CLKDEV_DEV_ID("e6cc0000.serial",	&mstp_clks[MSTP230]),

	CLKDEV_DEV_ID("sh_fsi2",		&mstp_clks[MSTP328]),
	CLKDEV_DEV_ID("fe1f0000.sound",		&mstp_clks[MSTP328]),
	CLKDEV_DEV_ID("i2c-sh_mobile.1",	&mstp_clks[MSTP323]),
	CLKDEV_DEV_ID("e6c20000.i2c",		&mstp_clks[MSTP323]),
	CLKDEV_DEV_ID("renesas_usbhs",		&mstp_clks[MSTP320]),
	CLKDEV_DEV_ID("sh_mobile_sdhi.0",	&mstp_clks[MSTP314]),
	CLKDEV_DEV_ID("e6850000.sd",		&mstp_clks[MSTP314]),
	CLKDEV_DEV_ID("sh_mobile_sdhi.1",	&mstp_clks[MSTP313]),
	CLKDEV_DEV_ID("e6860000.sd",		&mstp_clks[MSTP313]),
	CLKDEV_DEV_ID("sh_mmcif",		&mstp_clks[MSTP312]),
	CLKDEV_DEV_ID("e6bd0000.mmc",		&mstp_clks[MSTP312]),
	CLKDEV_DEV_ID("r8a7740-gether",		&mstp_clks[MSTP309]),
	CLKDEV_DEV_ID("e9a00000.ethernet",	&mstp_clks[MSTP309]),
	CLKDEV_DEV_ID("renesas-tpu-pwm",	&mstp_clks[MSTP304]),
	CLKDEV_DEV_ID("e6600000.pwm",		&mstp_clks[MSTP304]),

	CLKDEV_DEV_ID("sh_mobile_sdhi.2",	&mstp_clks[MSTP415]),
	CLKDEV_DEV_ID("e6870000.sd",		&mstp_clks[MSTP415]),

	/* ICK */
	CLKDEV_ICK_ID("fck",	"sh-tmu.1",		&mstp_clks[MSTP111]),
	CLKDEV_ICK_ID("fck",	"fff90000.timer",	&mstp_clks[MSTP111]),
	CLKDEV_ICK_ID("fck",	"sh-tmu.0",		&mstp_clks[MSTP125]),
	CLKDEV_ICK_ID("fck",	"fff80000.timer",	&mstp_clks[MSTP125]),
	CLKDEV_ICK_ID("fck",	"sh-cmt-48.1",		&mstp_clks[MSTP329]),
	CLKDEV_ICK_ID("fck",	"e6138000.timer",	&mstp_clks[MSTP329]),
	CLKDEV_ICK_ID("host",	"renesas_usbhs",	&mstp_clks[MSTP416]),
	CLKDEV_ICK_ID("func",	"renesas_usbhs",	&mstp_clks[MSTP407]),
	CLKDEV_ICK_ID("phy",	"renesas_usbhs",	&mstp_clks[MSTP406]),
	CLKDEV_ICK_ID("pci",	"renesas_usbhs",	&div4_clks[DIV4_USBP]),
	CLKDEV_ICK_ID("usb24",	"renesas_usbhs",	&usb24_clk),
	CLKDEV_ICK_ID("ick",	"sh-mobile-hdmi",	&div6_reparent_clks[DIV6_HDMI]),

	CLKDEV_ICK_ID("icka", "sh_fsi2",	&div6_reparent_clks[DIV6_FSIA]),
	CLKDEV_ICK_ID("ickb", "sh_fsi2",	&div6_reparent_clks[DIV6_FSIB]),
	CLKDEV_ICK_ID("diva", "sh_fsi2",	&fsidivs[FSIDIV_A]),
	CLKDEV_ICK_ID("divb", "sh_fsi2",	&fsidivs[FSIDIV_B]),
	CLKDEV_ICK_ID("xcka", "sh_fsi2",	&fsiack_clk),
	CLKDEV_ICK_ID("xckb", "sh_fsi2",	&fsibck_clk),
};

void __init r8a7740_clock_init(u8 md_ck)
{
	int k, ret = 0;

	/* detect system clock parent */
	if (md_ck & MD_CK1)
		system_clk.parent = &extal1_div2_clk;
	else
		system_clk.parent = &extal1_clk;

	/* detect RCLK parent */
	switch (md_ck & (MD_CK2 | MD_CK1)) {
	case MD_CK2 | MD_CK1:
		r_clk.parent = &extal1_div2048_clk;
		break;
	case MD_CK2:
		r_clk.parent = &extal1_div1024_clk;
		break;
	case MD_CK1:
	default:
		r_clk.parent = &extalr_clk;
		break;
	}

	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
		ret = clk_register(main_clks[k]);

	if (!ret)
		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);

	if (!ret)
		ret = sh_clk_div6_register(div6_clks, DIV6_NR);

	if (!ret)
		ret = sh_clk_div6_reparent_register(div6_reparent_clks,
						    DIV6_REPARENT_NR);

	if (!ret)
		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);

	for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
		ret = clk_register(late_main_clks[k]);

	if (!ret)
		ret = sh_clk_fsidiv_register(fsidivs, FSIDIV_REPARENT_NR);

	clkdev_add_table(lookups, ARRAY_SIZE(lookups));

	if (!ret)
		shmobile_clk_init();
	else
		panic("failed to setup r8a7740 clocks\n");
}