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
|
/*
* r8a7778 clock framework support
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Copyright (C) 2013 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* based on r8a7779
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Copyright (C) 2011 Magnus Damm
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* MD MD MD MD PLLA PLLB EXTAL clki clkz
* 19 18 12 11 (HMz) (MHz) (MHz)
*----------------------------------------------------------------------------
* 1 0 0 0 x21 x21 38.00 800 800
* 1 0 0 1 x24 x24 33.33 800 800
* 1 0 1 0 x28 x28 28.50 800 800
* 1 0 1 1 x32 x32 25.00 800 800
* 1 1 0 1 x24 x21 33.33 800 700
* 1 1 1 0 x28 x21 28.50 800 600
* 1 1 1 1 x32 x24 25.00 800 600
*/
#include <linux/io.h>
#include <linux/sh_clk.h>
#include <linux/clkdev.h>
#include <mach/clock.h>
#include <mach/common.h>
#define MSTPCR0 IOMEM(0xffc80030)
#define MSTPCR1 IOMEM(0xffc80034)
#define MSTPCR3 IOMEM(0xffc8003c)
#define MSTPSR1 IOMEM(0xffc80044)
#define MSTPSR4 IOMEM(0xffc80048)
#define MSTPSR6 IOMEM(0xffc8004c)
#define MSTPCR4 IOMEM(0xffc80050)
#define MSTPCR5 IOMEM(0xffc80054)
#define MSTPCR6 IOMEM(0xffc80058)
#define MODEMR 0xFFCC0020
#define MD(nr) BIT(nr)
/* ioremap() through clock mapping mandatory to avoid
* collision with ARM coherent DMA virtual memory range.
*/
static struct clk_mapping cpg_mapping = {
.phys = 0xffc80000,
.len = 0x80,
};
static struct clk extal_clk = {
/* .rate will be updated on r8a7778_clock_init() */
.mapping = &cpg_mapping,
};
static struct clk audio_clk_a = {
};
static struct clk audio_clk_b = {
};
static struct clk audio_clk_c = {
};
/*
* clock ratio of these clock will be updated
* on r8a7778_clock_init()
*/
SH_FIXED_RATIO_CLK_SET(plla_clk, extal_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(pllb_clk, extal_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(i_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(s_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(s1_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(s3_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(s4_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(b_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(out_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(p_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(g_clk, plla_clk, 1, 1);
SH_FIXED_RATIO_CLK_SET(z_clk, pllb_clk, 1, 1);
static struct clk *main_clks[] = {
&extal_clk,
&plla_clk,
&pllb_clk,
&i_clk,
&s_clk,
&s1_clk,
&s3_clk,
&s4_clk,
&b_clk,
&out_clk,
&p_clk,
&g_clk,
&z_clk,
&audio_clk_a,
&audio_clk_b,
&audio_clk_c,
};
enum {
MSTP531, MSTP530,
MSTP529, MSTP528, MSTP527, MSTP526, MSTP525, MSTP524, MSTP523,
MSTP331,
MSTP323, MSTP322, MSTP321,
MSTP311, MSTP310,
MSTP309, MSTP308, MSTP307,
MSTP114,
MSTP110, MSTP109,
MSTP100,
MSTP030,
MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,
MSTP016, MSTP015, MSTP012, MSTP011, MSTP010,
MSTP009, MSTP008, MSTP007,
MSTP_NR };
static struct clk mstp_clks[MSTP_NR] = {
[MSTP531] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 31, 0), /* SCU0 */
[MSTP530] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 30, 0), /* SCU1 */
[MSTP529] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 29, 0), /* SCU2 */
[MSTP528] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 28, 0), /* SCU3 */
[MSTP527] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 27, 0), /* SCU4 */
[MSTP526] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 26, 0), /* SCU5 */
[MSTP525] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 25, 0), /* SCU6 */
[MSTP524] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 24, 0), /* SCU7 */
[MSTP523] = SH_CLK_MSTP32(&p_clk, MSTPCR5, 23, 0), /* SCU8 */
[MSTP331] = SH_CLK_MSTP32(&s4_clk, MSTPCR3, 31, 0), /* MMC */
[MSTP323] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 23, 0), /* SDHI0 */
[MSTP322] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 22, 0), /* SDHI1 */
[MSTP321] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 21, 0), /* SDHI2 */
[MSTP311] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 11, 0), /* SSI4 */
[MSTP310] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 10, 0), /* SSI5 */
[MSTP309] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 9, 0), /* SSI6 */
[MSTP308] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 8, 0), /* SSI7 */
[MSTP307] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 7, 0), /* SSI8 */
[MSTP114] = SH_CLK_MSTP32(&p_clk, MSTPCR1, 14, 0), /* Ether */
[MSTP110] = SH_CLK_MSTP32(&s_clk, MSTPCR1, 10, 0), /* VIN0 */
[MSTP109] = SH_CLK_MSTP32(&s_clk, MSTPCR1, 9, 0), /* VIN1 */
[MSTP100] = SH_CLK_MSTP32(&p_clk, MSTPCR1, 0, 0), /* USB0/1 */
[MSTP030] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 30, 0), /* I2C0 */
[MSTP029] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 29, 0), /* I2C1 */
[MSTP028] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 28, 0), /* I2C2 */
[MSTP027] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 27, 0), /* I2C3 */
[MSTP026] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 26, 0), /* SCIF0 */
[MSTP025] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 25, 0), /* SCIF1 */
[MSTP024] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 24, 0), /* SCIF2 */
[MSTP023] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 23, 0), /* SCIF3 */
[MSTP022] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 22, 0), /* SCIF4 */
[MSTP021] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 21, 0), /* SCIF5 */
[MSTP016] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 16, 0), /* TMU0 */
[MSTP015] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 15, 0), /* TMU1 */
[MSTP012] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 12, 0), /* SSI0 */
[MSTP011] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 11, 0), /* SSI1 */
[MSTP010] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 10, 0), /* SSI2 */
[MSTP009] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 9, 0), /* SSI3 */
[MSTP008] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 8, 0), /* SRU */
[MSTP007] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 7, 0), /* HSPI */
};
static struct clk_lookup lookups[] = {
/* main */
CLKDEV_CON_ID("audio_clk_a", &audio_clk_a),
CLKDEV_CON_ID("audio_clk_b", &audio_clk_b),
CLKDEV_CON_ID("audio_clk_c", &audio_clk_c),
CLKDEV_CON_ID("audio_clk_internal", &s1_clk),
CLKDEV_CON_ID("shyway_clk", &s_clk),
CLKDEV_CON_ID("peripheral_clk", &p_clk),
/* MSTP32 clocks */
CLKDEV_DEV_ID("sh_mmcif", &mstp_clks[MSTP331]), /* MMC */
CLKDEV_DEV_ID("ffe4e000.mmc", &mstp_clks[MSTP331]), /* MMC */
CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP323]), /* SDHI0 */
CLKDEV_DEV_ID("ffe4c000.sd", &mstp_clks[MSTP323]), /* SDHI0 */
CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP322]), /* SDHI1 */
CLKDEV_DEV_ID("ffe4d000.sd", &mstp_clks[MSTP322]), /* SDHI1 */
CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP321]), /* SDHI2 */
CLKDEV_DEV_ID("ffe4f000.sd", &mstp_clks[MSTP321]), /* SDHI2 */
CLKDEV_DEV_ID("r8a777x-ether", &mstp_clks[MSTP114]), /* Ether */
CLKDEV_DEV_ID("r8a7778-vin.0", &mstp_clks[MSTP110]), /* VIN0 */
CLKDEV_DEV_ID("r8a7778-vin.1", &mstp_clks[MSTP109]), /* VIN1 */
CLKDEV_DEV_ID("ehci-platform", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */
CLKDEV_DEV_ID("ohci-platform", &mstp_clks[MSTP100]), /* USB OHCI port0/1 */
CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP100]), /* USB FUNC */
CLKDEV_DEV_ID("i2c-rcar.0", &mstp_clks[MSTP030]), /* I2C0 */
CLKDEV_DEV_ID("ffc70000.i2c", &mstp_clks[MSTP030]), /* I2C0 */
CLKDEV_DEV_ID("i2c-rcar.1", &mstp_clks[MSTP029]), /* I2C1 */
CLKDEV_DEV_ID("ffc71000.i2c", &mstp_clks[MSTP029]), /* I2C1 */
CLKDEV_DEV_ID("i2c-rcar.2", &mstp_clks[MSTP028]), /* I2C2 */
CLKDEV_DEV_ID("ffc72000.i2c", &mstp_clks[MSTP028]), /* I2C2 */
CLKDEV_DEV_ID("i2c-rcar.3", &mstp_clks[MSTP027]), /* I2C3 */
CLKDEV_DEV_ID("ffc73000.i2c", &mstp_clks[MSTP027]), /* I2C3 */
CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP026]), /* SCIF0 */
CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP025]), /* SCIF1 */
CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP024]), /* SCIF2 */
CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP023]), /* SCIF3 */
CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP022]), /* SCIF4 */
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP021]), /* SCIF6 */
CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP016]), /* TMU00 */
CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP015]), /* TMU01 */
CLKDEV_DEV_ID("sh-hspi.0", &mstp_clks[MSTP007]), /* HSPI0 */
CLKDEV_DEV_ID("fffc7000.spi", &mstp_clks[MSTP007]), /* HSPI0 */
CLKDEV_DEV_ID("sh-hspi.1", &mstp_clks[MSTP007]), /* HSPI1 */
CLKDEV_DEV_ID("fffc8000.spi", &mstp_clks[MSTP007]), /* HSPI1 */
CLKDEV_DEV_ID("sh-hspi.2", &mstp_clks[MSTP007]), /* HSPI2 */
CLKDEV_DEV_ID("fffc6000.spi", &mstp_clks[MSTP007]), /* HSPI2 */
CLKDEV_DEV_ID("rcar_sound", &mstp_clks[MSTP008]), /* SRU */
CLKDEV_ICK_ID("ssi.0", "rcar_sound", &mstp_clks[MSTP012]),
CLKDEV_ICK_ID("ssi.1", "rcar_sound", &mstp_clks[MSTP011]),
CLKDEV_ICK_ID("ssi.2", "rcar_sound", &mstp_clks[MSTP010]),
CLKDEV_ICK_ID("ssi.3", "rcar_sound", &mstp_clks[MSTP009]),
CLKDEV_ICK_ID("ssi.4", "rcar_sound", &mstp_clks[MSTP311]),
CLKDEV_ICK_ID("ssi.5", "rcar_sound", &mstp_clks[MSTP310]),
CLKDEV_ICK_ID("ssi.6", "rcar_sound", &mstp_clks[MSTP309]),
CLKDEV_ICK_ID("ssi.7", "rcar_sound", &mstp_clks[MSTP308]),
CLKDEV_ICK_ID("ssi.8", "rcar_sound", &mstp_clks[MSTP307]),
CLKDEV_ICK_ID("scu.0", "rcar_sound", &mstp_clks[MSTP531]),
CLKDEV_ICK_ID("scu.1", "rcar_sound", &mstp_clks[MSTP530]),
CLKDEV_ICK_ID("scu.2", "rcar_sound", &mstp_clks[MSTP529]),
CLKDEV_ICK_ID("scu.3", "rcar_sound", &mstp_clks[MSTP528]),
CLKDEV_ICK_ID("scu.4", "rcar_sound", &mstp_clks[MSTP527]),
CLKDEV_ICK_ID("scu.5", "rcar_sound", &mstp_clks[MSTP526]),
CLKDEV_ICK_ID("scu.6", "rcar_sound", &mstp_clks[MSTP525]),
CLKDEV_ICK_ID("scu.7", "rcar_sound", &mstp_clks[MSTP524]),
CLKDEV_ICK_ID("scu.8", "rcar_sound", &mstp_clks[MSTP523]),
};
void __init r8a7778_clock_init(void)
{
void __iomem *modemr = ioremap_nocache(MODEMR, PAGE_SIZE);
u32 mode;
int k, ret = 0;
BUG_ON(!modemr);
mode = ioread32(modemr);
iounmap(modemr);
switch (mode & (MD(19) | MD(18) | MD(12) | MD(11))) {
case MD(19):
extal_clk.rate = 38000000;
SH_CLK_SET_RATIO(&plla_clk_ratio, 21, 1);
SH_CLK_SET_RATIO(&pllb_clk_ratio, 21, 1);
break;
case MD(19) | MD(11):
extal_clk.rate = 33333333;
SH_CLK_SET_RATIO(&plla_clk_ratio, 24, 1);
SH_CLK_SET_RATIO(&pllb_clk_ratio, 24, 1);
break;
case MD(19) | MD(12):
extal_clk.rate = 28500000;
SH_CLK_SET_RATIO(&plla_clk_ratio, 28, 1);
SH_CLK_SET_RATIO(&pllb_clk_ratio, 28, 1);
break;
case MD(19) | MD(12) | MD(11):
extal_clk.rate = 25000000;
SH_CLK_SET_RATIO(&plla_clk_ratio, 32, 1);
SH_CLK_SET_RATIO(&pllb_clk_ratio, 32, 1);
break;
case MD(19) | MD(18) | MD(11):
extal_clk.rate = 33333333;
SH_CLK_SET_RATIO(&plla_clk_ratio, 24, 1);
SH_CLK_SET_RATIO(&pllb_clk_ratio, 21, 1);
break;
case MD(19) | MD(18) | MD(12):
extal_clk.rate = 28500000;
SH_CLK_SET_RATIO(&plla_clk_ratio, 28, 1);
SH_CLK_SET_RATIO(&pllb_clk_ratio, 21, 1);
break;
case MD(19) | MD(18) | MD(12) | MD(11):
extal_clk.rate = 25000000;
SH_CLK_SET_RATIO(&plla_clk_ratio, 32, 1);
SH_CLK_SET_RATIO(&pllb_clk_ratio, 24, 1);
break;
default:
BUG();
}
if (mode & MD(1)) {
SH_CLK_SET_RATIO(&i_clk_ratio, 1, 1);
SH_CLK_SET_RATIO(&s_clk_ratio, 1, 3);
SH_CLK_SET_RATIO(&s1_clk_ratio, 1, 6);
SH_CLK_SET_RATIO(&s3_clk_ratio, 1, 4);
SH_CLK_SET_RATIO(&s4_clk_ratio, 1, 8);
SH_CLK_SET_RATIO(&p_clk_ratio, 1, 12);
SH_CLK_SET_RATIO(&g_clk_ratio, 1, 12);
if (mode & MD(2)) {
SH_CLK_SET_RATIO(&b_clk_ratio, 1, 18);
SH_CLK_SET_RATIO(&out_clk_ratio, 1, 18);
} else {
SH_CLK_SET_RATIO(&b_clk_ratio, 1, 12);
SH_CLK_SET_RATIO(&out_clk_ratio, 1, 12);
}
} else {
SH_CLK_SET_RATIO(&i_clk_ratio, 1, 1);
SH_CLK_SET_RATIO(&s_clk_ratio, 1, 4);
SH_CLK_SET_RATIO(&s1_clk_ratio, 1, 8);
SH_CLK_SET_RATIO(&s3_clk_ratio, 1, 4);
SH_CLK_SET_RATIO(&s4_clk_ratio, 1, 8);
SH_CLK_SET_RATIO(&p_clk_ratio, 1, 16);
SH_CLK_SET_RATIO(&g_clk_ratio, 1, 12);
if (mode & MD(2)) {
SH_CLK_SET_RATIO(&b_clk_ratio, 1, 16);
SH_CLK_SET_RATIO(&out_clk_ratio, 1, 16);
} else {
SH_CLK_SET_RATIO(&b_clk_ratio, 1, 12);
SH_CLK_SET_RATIO(&out_clk_ratio, 1, 12);
}
}
for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
ret = clk_register(main_clks[k]);
if (!ret)
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
if (!ret)
shmobile_clk_init();
else
panic("failed to setup r8a7778 clocks\n");
}
|
