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Magnus Damm495b3ce2010-05-12 14:21:34 +00001/*
2 * SH7372 clock framework support
3 *
4 * Copyright (C) 2010 Magnus Damm
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19#include <linux/init.h>
20#include <linux/kernel.h>
Magnus Damm495b3ce2010-05-12 14:21:34 +000021#include <linux/io.h>
22#include <linux/sh_clk.h>
23#include <mach/common.h>
24#include <asm/clkdev.h>
25
26/* SH7372 registers */
27#define FRQCRA 0xe6150000
28#define FRQCRB 0xe6150004
29#define FRQCRC 0xe61500e0
30#define FRQCRD 0xe61500e4
31#define VCLKCR1 0xe6150008
32#define VCLKCR2 0xe615000c
33#define VCLKCR3 0xe615001c
34#define FMSICKCR 0xe6150010
35#define FMSOCKCR 0xe6150014
36#define FSIACKCR 0xe6150018
37#define FSIBCKCR 0xe6150090
38#define SUBCKCR 0xe6150080
39#define SPUCKCR 0xe6150084
40#define VOUCKCR 0xe6150088
41#define HDMICKCR 0xe6150094
42#define DSITCKCR 0xe6150060
43#define DSI0PCKCR 0xe6150064
44#define DSI1PCKCR 0xe6150098
45#define PLLC01CR 0xe6150028
46#define PLLC2CR 0xe615002c
47#define SMSTPCR0 0xe6150130
48#define SMSTPCR1 0xe6150134
49#define SMSTPCR2 0xe6150138
50#define SMSTPCR3 0xe615013c
51#define SMSTPCR4 0xe6150140
52
Kuninori Morimotof2ace4a2010-10-18 03:50:39 +000053#define FSIDIVA 0xFE1F8000
54#define FSIDIVB 0xFE1F8008
55
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +000056/* Platforms must set frequency on their DV_CLKI pin */
Kuninori Morimoto685e4082010-10-15 05:14:54 +000057struct clk sh7372_dv_clki_clk = {
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +000058};
59
Magnus Damm495b3ce2010-05-12 14:21:34 +000060/* Fixed 32 KHz root clock from EXTALR pin */
61static struct clk r_clk = {
62 .rate = 32768,
63};
64
65/*
66 * 26MHz default rate for the EXTAL1 root input clock.
67 * If needed, reset this with clk_set_rate() from the platform code.
68 */
Magnus Damm83ca5c82010-05-20 14:45:03 +000069struct clk sh7372_extal1_clk = {
Guennadi Liakhovetski3b79bec2010-06-25 07:22:31 +000070 .rate = 26000000,
Magnus Damm495b3ce2010-05-12 14:21:34 +000071};
72
73/*
74 * 48MHz default rate for the EXTAL2 root input clock.
75 * If needed, reset this with clk_set_rate() from the platform code.
76 */
Magnus Damm83ca5c82010-05-20 14:45:03 +000077struct clk sh7372_extal2_clk = {
Magnus Damm495b3ce2010-05-12 14:21:34 +000078 .rate = 48000000,
79};
80
81/* A fixed divide-by-2 block */
82static unsigned long div2_recalc(struct clk *clk)
83{
84 return clk->parent->rate / 2;
85}
86
87static struct clk_ops div2_clk_ops = {
88 .recalc = div2_recalc,
89};
90
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +000091/* Divide dv_clki by two */
Kuninori Morimoto685e4082010-10-15 05:14:54 +000092struct clk sh7372_dv_clki_div2_clk = {
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +000093 .ops = &div2_clk_ops,
Kuninori Morimoto685e4082010-10-15 05:14:54 +000094 .parent = &sh7372_dv_clki_clk,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +000095};
96
Magnus Damm495b3ce2010-05-12 14:21:34 +000097/* Divide extal1 by two */
98static struct clk extal1_div2_clk = {
99 .ops = &div2_clk_ops,
Magnus Damm83ca5c82010-05-20 14:45:03 +0000100 .parent = &sh7372_extal1_clk,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000101};
102
103/* Divide extal2 by two */
104static struct clk extal2_div2_clk = {
105 .ops = &div2_clk_ops,
Magnus Damm83ca5c82010-05-20 14:45:03 +0000106 .parent = &sh7372_extal2_clk,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000107};
108
109/* Divide extal2 by four */
110static struct clk extal2_div4_clk = {
111 .ops = &div2_clk_ops,
112 .parent = &extal2_div2_clk,
113};
114
115/* PLLC0 and PLLC1 */
116static unsigned long pllc01_recalc(struct clk *clk)
117{
118 unsigned long mult = 1;
119
120 if (__raw_readl(PLLC01CR) & (1 << 14))
121 mult = (((__raw_readl(clk->enable_reg) >> 24) & 0x3f) + 1) * 2;
122
123 return clk->parent->rate * mult;
124}
125
126static struct clk_ops pllc01_clk_ops = {
127 .recalc = pllc01_recalc,
128};
129
130static struct clk pllc0_clk = {
131 .ops = &pllc01_clk_ops,
132 .flags = CLK_ENABLE_ON_INIT,
133 .parent = &extal1_div2_clk,
134 .enable_reg = (void __iomem *)FRQCRC,
135};
136
137static struct clk pllc1_clk = {
138 .ops = &pllc01_clk_ops,
139 .flags = CLK_ENABLE_ON_INIT,
140 .parent = &extal1_div2_clk,
141 .enable_reg = (void __iomem *)FRQCRA,
142};
143
144/* Divide PLLC1 by two */
145static struct clk pllc1_div2_clk = {
146 .ops = &div2_clk_ops,
147 .parent = &pllc1_clk,
148};
149
150/* PLLC2 */
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000151
152/* Indices are important - they are the actual src selecting values */
153static struct clk *pllc2_parent[] = {
154 [0] = &extal1_div2_clk,
155 [1] = &extal2_div2_clk,
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000156 [2] = &sh7372_dv_clki_div2_clk,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000157};
158
159/* Only multipliers 20 * 2 to 46 * 2 are valid, last entry for CPUFREQ_TABLE_END */
160static struct cpufreq_frequency_table pllc2_freq_table[29];
161
162static void pllc2_table_rebuild(struct clk *clk)
163{
164 int i;
165
166 /* Initialise PLLC2 frequency table */
167 for (i = 0; i < ARRAY_SIZE(pllc2_freq_table) - 2; i++) {
168 pllc2_freq_table[i].frequency = clk->parent->rate * (i + 20) * 2;
169 pllc2_freq_table[i].index = i;
170 }
171
172 /* This is a special entry - switching PLL off makes it a repeater */
173 pllc2_freq_table[i].frequency = clk->parent->rate;
174 pllc2_freq_table[i].index = i;
175
176 pllc2_freq_table[++i].frequency = CPUFREQ_TABLE_END;
177 pllc2_freq_table[i].index = i;
178}
179
Magnus Damm495b3ce2010-05-12 14:21:34 +0000180static unsigned long pllc2_recalc(struct clk *clk)
181{
182 unsigned long mult = 1;
183
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000184 pllc2_table_rebuild(clk);
185
186 /*
187 * If the PLL is off, mult == 1, clk->rate will be updated in
188 * pllc2_enable().
189 */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000190 if (__raw_readl(PLLC2CR) & (1 << 31))
191 mult = (((__raw_readl(PLLC2CR) >> 24) & 0x3f) + 1) * 2;
192
193 return clk->parent->rate * mult;
194}
195
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000196static long pllc2_round_rate(struct clk *clk, unsigned long rate)
197{
198 return clk_rate_table_round(clk, clk->freq_table, rate);
199}
200
201static int pllc2_enable(struct clk *clk)
202{
203 int i;
204
205 __raw_writel(__raw_readl(PLLC2CR) | 0x80000000, PLLC2CR);
206
207 for (i = 0; i < 100; i++)
208 if (__raw_readl(PLLC2CR) & 0x80000000) {
209 clk->rate = pllc2_recalc(clk);
210 return 0;
211 }
212
213 pr_err("%s(): timeout!\n", __func__);
214
215 return -ETIMEDOUT;
216}
217
218static void pllc2_disable(struct clk *clk)
219{
220 __raw_writel(__raw_readl(PLLC2CR) & ~0x80000000, PLLC2CR);
221}
222
223static int pllc2_set_rate(struct clk *clk,
224 unsigned long rate, int algo_id)
225{
226 unsigned long value;
227 int idx;
228
229 idx = clk_rate_table_find(clk, clk->freq_table, rate);
230 if (idx < 0)
231 return idx;
232
233 if (rate == clk->parent->rate) {
234 pllc2_disable(clk);
235 return 0;
236 }
237
238 value = __raw_readl(PLLC2CR) & ~(0x3f << 24);
239
240 if (value & 0x80000000)
241 pllc2_disable(clk);
242
243 __raw_writel((value & ~0x80000000) | ((idx + 19) << 24), PLLC2CR);
244
245 if (value & 0x80000000)
246 return pllc2_enable(clk);
247
248 return 0;
249}
250
251static int pllc2_set_parent(struct clk *clk, struct clk *parent)
252{
253 u32 value;
254 int ret, i;
255
256 if (!clk->parent_table || !clk->parent_num)
257 return -EINVAL;
258
259 /* Search the parent */
260 for (i = 0; i < clk->parent_num; i++)
261 if (clk->parent_table[i] == parent)
262 break;
263
264 if (i == clk->parent_num)
265 return -ENODEV;
266
267 ret = clk_reparent(clk, parent);
268 if (ret < 0)
269 return ret;
270
271 value = __raw_readl(PLLC2CR) & ~(3 << 6);
272
273 __raw_writel(value | (i << 6), PLLC2CR);
274
275 /* Rebiuld the frequency table */
276 pllc2_table_rebuild(clk);
277
278 return 0;
279}
280
Magnus Damm495b3ce2010-05-12 14:21:34 +0000281static struct clk_ops pllc2_clk_ops = {
282 .recalc = pllc2_recalc,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000283 .round_rate = pllc2_round_rate,
284 .set_rate = pllc2_set_rate,
285 .enable = pllc2_enable,
286 .disable = pllc2_disable,
287 .set_parent = pllc2_set_parent,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000288};
289
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000290struct clk sh7372_pllc2_clk = {
Magnus Damm495b3ce2010-05-12 14:21:34 +0000291 .ops = &pllc2_clk_ops,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000292 .parent = &extal1_div2_clk,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000293 .freq_table = pllc2_freq_table,
Guennadi Liakhovetski5c4e0f12010-11-02 11:28:33 +0000294 .nr_freqs = ARRAY_SIZE(pllc2_freq_table) - 1,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000295 .parent_table = pllc2_parent,
296 .parent_num = ARRAY_SIZE(pllc2_parent),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000297};
298
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000299/* External input clock (pin name: FSIACK/FSIBCK ) */
300struct clk sh7372_fsiack_clk = {
301};
302
303struct clk sh7372_fsibck_clk = {
304};
305
Magnus Damm83ca5c82010-05-20 14:45:03 +0000306static struct clk *main_clks[] = {
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000307 &sh7372_dv_clki_clk,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000308 &r_clk,
Magnus Damm83ca5c82010-05-20 14:45:03 +0000309 &sh7372_extal1_clk,
310 &sh7372_extal2_clk,
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000311 &sh7372_dv_clki_div2_clk,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000312 &extal1_div2_clk,
313 &extal2_div2_clk,
314 &extal2_div4_clk,
315 &pllc0_clk,
316 &pllc1_clk,
317 &pllc1_div2_clk,
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000318 &sh7372_pllc2_clk,
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000319 &sh7372_fsiack_clk,
320 &sh7372_fsibck_clk,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000321};
322
323static void div4_kick(struct clk *clk)
324{
325 unsigned long value;
326
327 /* set KICK bit in FRQCRB to update hardware setting */
328 value = __raw_readl(FRQCRB);
329 value |= (1 << 31);
330 __raw_writel(value, FRQCRB);
331}
332
333static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
334 24, 32, 36, 48, 0, 72, 96, 0 };
335
336static struct clk_div_mult_table div4_div_mult_table = {
337 .divisors = divisors,
338 .nr_divisors = ARRAY_SIZE(divisors),
339};
340
341static struct clk_div4_table div4_table = {
342 .div_mult_table = &div4_div_mult_table,
343 .kick = div4_kick,
344};
345
346enum { DIV4_I, DIV4_ZG, DIV4_B, DIV4_M1, DIV4_CSIR,
347 DIV4_ZTR, DIV4_ZT, DIV4_ZX, DIV4_HP,
348 DIV4_ISPB, DIV4_S, DIV4_ZB, DIV4_ZB3, DIV4_CP,
349 DIV4_DDRP, DIV4_NR };
350
351#define DIV4(_reg, _bit, _mask, _flags) \
352 SH_CLK_DIV4(&pllc1_clk, _reg, _bit, _mask, _flags)
353
Magnus Damm83ca5c82010-05-20 14:45:03 +0000354static struct clk div4_clks[DIV4_NR] = {
Magnus Damm495b3ce2010-05-12 14:21:34 +0000355 [DIV4_I] = DIV4(FRQCRA, 20, 0x6fff, CLK_ENABLE_ON_INIT),
356 [DIV4_ZG] = DIV4(FRQCRA, 16, 0x6fff, CLK_ENABLE_ON_INIT),
357 [DIV4_B] = DIV4(FRQCRA, 8, 0x6fff, CLK_ENABLE_ON_INIT),
358 [DIV4_M1] = DIV4(FRQCRA, 4, 0x6fff, CLK_ENABLE_ON_INIT),
359 [DIV4_CSIR] = DIV4(FRQCRA, 0, 0x6fff, 0),
360 [DIV4_ZTR] = DIV4(FRQCRB, 20, 0x6fff, 0),
361 [DIV4_ZT] = DIV4(FRQCRB, 16, 0x6fff, 0),
362 [DIV4_ZX] = DIV4(FRQCRB, 12, 0x6fff, 0),
363 [DIV4_HP] = DIV4(FRQCRB, 4, 0x6fff, 0),
364 [DIV4_ISPB] = DIV4(FRQCRC, 20, 0x6fff, 0),
365 [DIV4_S] = DIV4(FRQCRC, 12, 0x6fff, 0),
366 [DIV4_ZB] = DIV4(FRQCRC, 8, 0x6fff, 0),
367 [DIV4_ZB3] = DIV4(FRQCRC, 4, 0x6fff, 0),
368 [DIV4_CP] = DIV4(FRQCRC, 0, 0x6fff, 0),
369 [DIV4_DDRP] = DIV4(FRQCRD, 0, 0x677c, 0),
370};
371
372enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_FMSI, DIV6_FMSO,
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000373 DIV6_SUB, DIV6_SPU,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000374 DIV6_VOU, DIV6_DSIT, DIV6_DSI0P, DIV6_DSI1P,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000375 DIV6_NR };
376
Magnus Damm83ca5c82010-05-20 14:45:03 +0000377static struct clk div6_clks[DIV6_NR] = {
Magnus Damm495b3ce2010-05-12 14:21:34 +0000378 [DIV6_VCK1] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR1, 0),
379 [DIV6_VCK2] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR2, 0),
380 [DIV6_VCK3] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR3, 0),
381 [DIV6_FMSI] = SH_CLK_DIV6(&pllc1_div2_clk, FMSICKCR, 0),
382 [DIV6_FMSO] = SH_CLK_DIV6(&pllc1_div2_clk, FMSOCKCR, 0),
Magnus Damm83ca5c82010-05-20 14:45:03 +0000383 [DIV6_SUB] = SH_CLK_DIV6(&sh7372_extal2_clk, SUBCKCR, 0),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000384 [DIV6_SPU] = SH_CLK_DIV6(&pllc1_div2_clk, SPUCKCR, 0),
385 [DIV6_VOU] = SH_CLK_DIV6(&pllc1_div2_clk, VOUCKCR, 0),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000386 [DIV6_DSIT] = SH_CLK_DIV6(&pllc1_div2_clk, DSITCKCR, 0),
387 [DIV6_DSI0P] = SH_CLK_DIV6(&pllc1_div2_clk, DSI0PCKCR, 0),
388 [DIV6_DSI1P] = SH_CLK_DIV6(&pllc1_div2_clk, DSI1PCKCR, 0),
389};
390
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000391enum { DIV6_HDMI, DIV6_FSIA, DIV6_FSIB, DIV6_REPARENT_NR };
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000392
393/* Indices are important - they are the actual src selecting values */
394static struct clk *hdmi_parent[] = {
395 [0] = &pllc1_div2_clk,
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000396 [1] = &sh7372_pllc2_clk,
397 [2] = &sh7372_dv_clki_clk,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000398 [3] = NULL, /* pllc2_div4 not implemented yet */
399};
400
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000401static struct clk *fsiackcr_parent[] = {
402 [0] = &pllc1_div2_clk,
403 [1] = &sh7372_pllc2_clk,
404 [2] = &sh7372_fsiack_clk, /* external input for FSI A */
405 [3] = NULL, /* setting prohibited */
406};
407
408static struct clk *fsibckcr_parent[] = {
409 [0] = &pllc1_div2_clk,
410 [1] = &sh7372_pllc2_clk,
411 [2] = &sh7372_fsibck_clk, /* external input for FSI B */
412 [3] = NULL, /* setting prohibited */
413};
414
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000415static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
416 [DIV6_HDMI] = SH_CLK_DIV6_EXT(&pllc1_div2_clk, HDMICKCR, 0,
417 hdmi_parent, ARRAY_SIZE(hdmi_parent), 6, 2),
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000418 [DIV6_FSIA] = SH_CLK_DIV6_EXT(&pllc1_div2_clk, FSIACKCR, 0,
419 fsiackcr_parent, ARRAY_SIZE(fsiackcr_parent), 6, 2),
420 [DIV6_FSIB] = SH_CLK_DIV6_EXT(&pllc1_div2_clk, FSIBCKCR, 0,
421 fsibckcr_parent, ARRAY_SIZE(fsibckcr_parent), 6, 2),
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000422};
423
Kuninori Morimotof2ace4a2010-10-18 03:50:39 +0000424/* FSI DIV */
425static unsigned long fsidiv_recalc(struct clk *clk)
426{
427 unsigned long value;
428
429 value = __raw_readl(clk->mapping->base);
430
431 if ((value & 0x3) != 0x3)
432 return 0;
433
434 value >>= 16;
435 if (value < 2)
436 return 0;
437
438 return clk->parent->rate / value;
439}
440
441static long fsidiv_round_rate(struct clk *clk, unsigned long rate)
442{
443 return clk_rate_div_range_round(clk, 2, 0xffff, rate);
444}
445
446static void fsidiv_disable(struct clk *clk)
447{
448 __raw_writel(0, clk->mapping->base);
449}
450
451static int fsidiv_enable(struct clk *clk)
452{
453 unsigned long value;
454
455 value = __raw_readl(clk->mapping->base) >> 16;
Kuninori Morimotoe8ee13a2010-11-19 07:22:58 +0000456 if (value < 2)
Kuninori Morimotoa57b1a92010-11-19 07:23:26 +0000457 return -EIO;
Kuninori Morimotof2ace4a2010-10-18 03:50:39 +0000458
459 __raw_writel((value << 16) | 0x3, clk->mapping->base);
460
461 return 0;
462}
463
464static int fsidiv_set_rate(struct clk *clk,
465 unsigned long rate, int algo_id)
466{
467 int idx;
468
Kuninori Morimotof2ace4a2010-10-18 03:50:39 +0000469 idx = (clk->parent->rate / rate) & 0xffff;
470 if (idx < 2)
Kuninori Morimotoa57b1a92010-11-19 07:23:26 +0000471 return -EINVAL;
Kuninori Morimotof2ace4a2010-10-18 03:50:39 +0000472
473 __raw_writel(idx << 16, clk->mapping->base);
Kuninori Morimotod4bc99b2010-11-24 02:44:06 +0000474 return 0;
Kuninori Morimotof2ace4a2010-10-18 03:50:39 +0000475}
476
477static struct clk_ops fsidiv_clk_ops = {
478 .recalc = fsidiv_recalc,
479 .round_rate = fsidiv_round_rate,
480 .set_rate = fsidiv_set_rate,
481 .enable = fsidiv_enable,
482 .disable = fsidiv_disable,
483};
484
485static struct clk_mapping sh7372_fsidiva_clk_mapping = {
486 .phys = FSIDIVA,
487 .len = 8,
488};
489
490struct clk sh7372_fsidiva_clk = {
491 .ops = &fsidiv_clk_ops,
492 .parent = &div6_reparent_clks[DIV6_FSIA], /* late install */
493 .mapping = &sh7372_fsidiva_clk_mapping,
494};
495
496static struct clk_mapping sh7372_fsidivb_clk_mapping = {
497 .phys = FSIDIVB,
498 .len = 8,
499};
500
501struct clk sh7372_fsidivb_clk = {
502 .ops = &fsidiv_clk_ops,
503 .parent = &div6_reparent_clks[DIV6_FSIB], /* late install */
504 .mapping = &sh7372_fsidivb_clk_mapping,
505};
506
507static struct clk *late_main_clks[] = {
508 &sh7372_fsidiva_clk,
509 &sh7372_fsidivb_clk,
510};
511
Magnus Damm495b3ce2010-05-12 14:21:34 +0000512enum { MSTP001,
Guennadi Liakhovetskid473e0a2010-05-23 13:55:34 +0000513 MSTP131, MSTP130,
Magnus Dammc6c049e2010-10-14 06:57:25 +0000514 MSTP129, MSTP128, MSTP127, MSTP126, MSTP125,
Guennadi Liakhovetskid473e0a2010-05-23 13:55:34 +0000515 MSTP118, MSTP117, MSTP116,
516 MSTP106, MSTP101, MSTP100,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000517 MSTP223,
518 MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
Kuninori Morimoto21a89342010-06-01 02:40:32 +0000519 MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000520 MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
Magnus Damm495b3ce2010-05-12 14:21:34 +0000521 MSTP_NR };
522
523#define MSTP(_parent, _reg, _bit, _flags) \
524 SH_CLK_MSTP32(_parent, _reg, _bit, _flags)
525
526static struct clk mstp_clks[MSTP_NR] = {
527 [MSTP001] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 1, 0), /* IIC2 */
528 [MSTP131] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 31, 0), /* VEU3 */
529 [MSTP130] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 30, 0), /* VEU2 */
530 [MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* VEU1 */
531 [MSTP128] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 28, 0), /* VEU0 */
Guennadi Liakhovetskia4909b52010-07-26 16:20:53 +0000532 [MSTP127] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 27, 0), /* CEU */
533 [MSTP126] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 26, 0), /* CSI2 */
Magnus Dammc6c049e2010-10-14 06:57:25 +0000534 [MSTP125] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
Guennadi Liakhovetski6e86cca2010-06-25 07:21:40 +0000535 [MSTP118] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 18, 0), /* DSITX */
536 [MSTP117] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 17, 0), /* LCDC1 */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000537 [MSTP116] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 16, 0), /* IIC0 */
538 [MSTP106] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 6, 0), /* JPU */
539 [MSTP101] = MSTP(&div4_clks[DIV4_M1], SMSTPCR1, 1, 0), /* VPU */
Guennadi Liakhovetskid473e0a2010-05-23 13:55:34 +0000540 [MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000541 [MSTP223] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR2, 23, 0), /* SPU2 */
542 [MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
543 [MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
544 [MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
545 [MSTP203] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 3, 0), /* SCIFA1 */
546 [MSTP202] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 2, 0), /* SCIFA2 */
547 [MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
548 [MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
549 [MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000550 [MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, 0), /* FSI2 */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000551 [MSTP323] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 23, 0), /* IIC1 */
552 [MSTP322] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 22, 0), /* USB0 */
553 [MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */
554 [MSTP313] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 13, 0), /* SDHI1 */
Kuninori Morimoto21a89342010-06-01 02:40:32 +0000555 [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMC */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000556 [MSTP415] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 15, 0), /* SDHI2 */
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000557 [MSTP413] = MSTP(&pllc1_div2_clk, SMSTPCR4, 13, 0), /* HDMI */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000558 [MSTP411] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 11, 0), /* IIC3 */
559 [MSTP410] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 10, 0), /* IIC4 */
560 [MSTP406] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 6, 0), /* USB1 */
561 [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */
562};
563
564#define CLKDEV_CON_ID(_id, _clk) { .con_id = _id, .clk = _clk }
565#define CLKDEV_DEV_ID(_id, _clk) { .dev_id = _id, .clk = _clk }
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000566#define CLKDEV_ICK_ID(_cid, _did, _clk) { .con_id = _cid, .dev_id = _did, .clk = _clk }
Magnus Damm495b3ce2010-05-12 14:21:34 +0000567
568static struct clk_lookup lookups[] = {
569 /* main clocks */
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000570 CLKDEV_CON_ID("dv_clki_div2_clk", &sh7372_dv_clki_div2_clk),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000571 CLKDEV_CON_ID("r_clk", &r_clk),
Magnus Damm83ca5c82010-05-20 14:45:03 +0000572 CLKDEV_CON_ID("extal1", &sh7372_extal1_clk),
573 CLKDEV_CON_ID("extal2", &sh7372_extal2_clk),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000574 CLKDEV_CON_ID("extal1_div2_clk", &extal1_div2_clk),
575 CLKDEV_CON_ID("extal2_div2_clk", &extal2_div2_clk),
576 CLKDEV_CON_ID("extal2_div4_clk", &extal2_div4_clk),
577 CLKDEV_CON_ID("pllc0_clk", &pllc0_clk),
578 CLKDEV_CON_ID("pllc1_clk", &pllc1_clk),
579 CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk),
Kuninori Morimoto685e4082010-10-15 05:14:54 +0000580 CLKDEV_CON_ID("pllc2_clk", &sh7372_pllc2_clk),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000581
582 /* DIV4 clocks */
583 CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]),
584 CLKDEV_CON_ID("zg_clk", &div4_clks[DIV4_ZG]),
585 CLKDEV_CON_ID("b_clk", &div4_clks[DIV4_B]),
586 CLKDEV_CON_ID("m1_clk", &div4_clks[DIV4_M1]),
587 CLKDEV_CON_ID("csir_clk", &div4_clks[DIV4_CSIR]),
588 CLKDEV_CON_ID("ztr_clk", &div4_clks[DIV4_ZTR]),
589 CLKDEV_CON_ID("zt_clk", &div4_clks[DIV4_ZT]),
590 CLKDEV_CON_ID("zx_clk", &div4_clks[DIV4_ZX]),
591 CLKDEV_CON_ID("hp_clk", &div4_clks[DIV4_HP]),
592 CLKDEV_CON_ID("ispb_clk", &div4_clks[DIV4_ISPB]),
593 CLKDEV_CON_ID("s_clk", &div4_clks[DIV4_S]),
594 CLKDEV_CON_ID("zb_clk", &div4_clks[DIV4_ZB]),
595 CLKDEV_CON_ID("zb3_clk", &div4_clks[DIV4_ZB3]),
596 CLKDEV_CON_ID("cp_clk", &div4_clks[DIV4_CP]),
597 CLKDEV_CON_ID("ddrp_clk", &div4_clks[DIV4_DDRP]),
598
599 /* DIV6 clocks */
600 CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]),
601 CLKDEV_CON_ID("vck2_clk", &div6_clks[DIV6_VCK2]),
602 CLKDEV_CON_ID("vck3_clk", &div6_clks[DIV6_VCK3]),
603 CLKDEV_CON_ID("fmsi_clk", &div6_clks[DIV6_FMSI]),
604 CLKDEV_CON_ID("fmso_clk", &div6_clks[DIV6_FMSO]),
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000605 CLKDEV_CON_ID("fsia_clk", &div6_reparent_clks[DIV6_FSIA]),
606 CLKDEV_CON_ID("fsib_clk", &div6_reparent_clks[DIV6_FSIB]),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000607 CLKDEV_CON_ID("sub_clk", &div6_clks[DIV6_SUB]),
608 CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_SPU]),
609 CLKDEV_CON_ID("vou_clk", &div6_clks[DIV6_VOU]),
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000610 CLKDEV_CON_ID("hdmi_clk", &div6_reparent_clks[DIV6_HDMI]),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000611 CLKDEV_CON_ID("dsit_clk", &div6_clks[DIV6_DSIT]),
612 CLKDEV_CON_ID("dsi0p_clk", &div6_clks[DIV6_DSI0P]),
613 CLKDEV_CON_ID("dsi1p_clk", &div6_clks[DIV6_DSI1P]),
614
615 /* MSTP32 clocks */
616 CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* IIC2 */
Magnus Damm83ca5c82010-05-20 14:45:03 +0000617 CLKDEV_DEV_ID("uio_pdrv_genirq.4", &mstp_clks[MSTP131]), /* VEU3 */
618 CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[MSTP130]), /* VEU2 */
619 CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[MSTP129]), /* VEU1 */
620 CLKDEV_DEV_ID("uio_pdrv_genirq.1", &mstp_clks[MSTP128]), /* VEU0 */
Guennadi Liakhovetskia4909b52010-07-26 16:20:53 +0000621 CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[MSTP127]), /* CEU */
622 CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2 */
Magnus Dammc6c049e2010-10-14 06:57:25 +0000623 CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP125]), /* TMU00 */
624 CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP125]), /* TMU01 */
Guennadi Liakhovetskid473e0a2010-05-23 13:55:34 +0000625 CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX */
626 CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1", &mstp_clks[MSTP117]), /* LCDC1 */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000627 CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* IIC0 */
628 CLKDEV_DEV_ID("uio_pdrv_genirq.5", &mstp_clks[MSTP106]), /* JPU */
629 CLKDEV_DEV_ID("uio_pdrv_genirq.0", &mstp_clks[MSTP101]), /* VPU */
Guennadi Liakhovetskid473e0a2010-05-23 13:55:34 +0000630 CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000631 CLKDEV_DEV_ID("uio_pdrv_genirq.6", &mstp_clks[MSTP223]), /* SPU2DSP0 */
632 CLKDEV_DEV_ID("uio_pdrv_genirq.7", &mstp_clks[MSTP223]), /* SPU2DSP1 */
633 CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
634 CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP206]), /* SCIFB */
635 CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
636 CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
637 CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */
638 CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */
639 CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
Magnus Damm90e09a52010-10-13 07:29:31 +0000640 CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
Kuninori Morimoto9848f2f2010-07-28 02:54:23 +0000641 CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI2 */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000642 CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* IIC1 */
643 CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[MSTP323]), /* USB0 */
644 CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[MSTP323]), /* USB0 */
645 CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
646 CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
Kuninori Morimoto21a89342010-06-01 02:40:32 +0000647 CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMC */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000648 CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP415]), /* SDHI2 */
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000649 CLKDEV_DEV_ID("sh-mobile-hdmi", &mstp_clks[MSTP413]), /* HDMI */
Magnus Damm495b3ce2010-05-12 14:21:34 +0000650 CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* IIC3 */
651 CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* IIC4 */
652 CLKDEV_DEV_ID("r8a66597_hcd.1", &mstp_clks[MSTP406]), /* USB1 */
653 CLKDEV_DEV_ID("r8a66597_udc.1", &mstp_clks[MSTP406]), /* USB1 */
654 CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */
Kuninori Morimoto69ce8aa2010-10-15 05:15:05 +0000655
656 CLKDEV_ICK_ID("ick", "sh-mobile-hdmi", &div6_reparent_clks[DIV6_HDMI]),
657 CLKDEV_ICK_ID("icka", "sh_fsi2", &div6_reparent_clks[DIV6_FSIA]),
658 CLKDEV_ICK_ID("ickb", "sh_fsi2", &div6_reparent_clks[DIV6_FSIB]),
Magnus Damm495b3ce2010-05-12 14:21:34 +0000659};
660
661void __init sh7372_clock_init(void)
662{
663 int k, ret = 0;
664
665 for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
666 ret = clk_register(main_clks[k]);
667
668 if (!ret)
669 ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
670
671 if (!ret)
672 ret = sh_clk_div6_register(div6_clks, DIV6_NR);
673
674 if (!ret)
Kuninori Morimoto5d8e3452010-09-15 06:38:07 +0000675 ret = sh_clk_div6_reparent_register(div6_reparent_clks, DIV6_REPARENT_NR);
Guennadi Liakhovetskib90884c2010-07-21 10:13:14 +0000676
677 if (!ret)
Magnus Damm495b3ce2010-05-12 14:21:34 +0000678 ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
679
Kuninori Morimotof2ace4a2010-10-18 03:50:39 +0000680 for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
681 ret = clk_register(late_main_clks[k]);
682
Magnus Damm495b3ce2010-05-12 14:21:34 +0000683 clkdev_add_table(lookups, ARRAY_SIZE(lookups));
684
685 if (!ret)
686 clk_init();
687 else
688 panic("failed to setup sh7372 clocks\n");
689
690}