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authorKukjin Kim <kgene.kim@samsung.com>2010-09-01 02:35:30 -0400
committerKukjin Kim <kgene.kim@samsung.com>2010-10-18 05:33:02 -0400
commit3109e55099cb013f9e1b63d39606dc5d7ecf25bd (patch)
tree46fc9d0af9f08df90b079f953b4c0015e7f6134a
parenta2e0d6249fa866ce7f5a8fe08a4d75511e4701c6 (diff)
ARM: S5P64X0: Update Clock for S5P6440 and S5P6450
This patch updates regarding clock files for supporting S5P6440 and S5P6450 with one kernel image. The mach-s5p64x0/clock.c is for common of them and there are specific clock files for each SoCs. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat
-rw-r--r--arch/arm/mach-s5p6440/clock.c846
-rw-r--r--arch/arm/mach-s5p6440/include/mach/regs-clock.h130
-rw-r--r--arch/arm/mach-s5p64x0/clock-s5p6440.c626
-rw-r--r--arch/arm/mach-s5p64x0/clock-s5p6450.c655
-rw-r--r--arch/arm/mach-s5p64x0/clock.c253
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/regs-clock.h63
-rw-r--r--arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h46
-rw-r--r--arch/arm/plat-s5p/clock.c19
-rw-r--r--arch/arm/plat-s5p/include/plat/pll.h7
-rw-r--r--arch/arm/plat-s5p/include/plat/s5p-clock.h8
10 files changed, 1674 insertions, 979 deletions
diff --git a/arch/arm/mach-s5p6440/clock.c b/arch/arm/mach-s5p6440/clock.c
deleted file mode 100644
index ca6e48dce777..000000000000
--- a/arch/arm/mach-s5p6440/clock.c
+++ /dev/null
@@ -1,846 +0,0 @@
1/* linux/arch/arm/mach-s5p6440/clock.c
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - Clock support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/list.h>
17#include <linux/errno.h>
18#include <linux/err.h>
19#include <linux/clk.h>
20#include <linux/sysdev.h>
21#include <linux/io.h>
22
23#include <mach/hardware.h>
24#include <mach/map.h>
25
26#include <plat/cpu-freq.h>
27#include <mach/regs-clock.h>
28#include <plat/clock.h>
29#include <plat/cpu.h>
30#include <plat/clock-clksrc.h>
31#include <plat/s5p-clock.h>
32#include <plat/pll.h>
33#include <plat/s5p6440.h>
34
35/* APLL Mux output clock */
36static struct clksrc_clk clk_mout_apll = {
37 .clk = {
38 .name = "mout_apll",
39 .id = -1,
40 },
41 .sources = &clk_src_apll,
42 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 },
43};
44
45static int s5p6440_epll_enable(struct clk *clk, int enable)
46{
47 unsigned int ctrlbit = clk->ctrlbit;
48 unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit;
49
50 if (enable)
51 __raw_writel(epll_con | ctrlbit, S5P_EPLL_CON);
52 else
53 __raw_writel(epll_con, S5P_EPLL_CON);
54
55 return 0;
56}
57
58static unsigned long s5p6440_epll_get_rate(struct clk *clk)
59{
60 return clk->rate;
61}
62
63static u32 epll_div[][5] = {
64 { 36000000, 0, 48, 1, 4 },
65 { 48000000, 0, 32, 1, 3 },
66 { 60000000, 0, 40, 1, 3 },
67 { 72000000, 0, 48, 1, 3 },
68 { 84000000, 0, 28, 1, 2 },
69 { 96000000, 0, 32, 1, 2 },
70 { 32768000, 45264, 43, 1, 4 },
71 { 45158000, 6903, 30, 1, 3 },
72 { 49152000, 50332, 32, 1, 3 },
73 { 67738000, 10398, 45, 1, 3 },
74 { 73728000, 9961, 49, 1, 3 }
75};
76
77static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
78{
79 unsigned int epll_con, epll_con_k;
80 unsigned int i;
81
82 if (clk->rate == rate) /* Return if nothing changed */
83 return 0;
84
85 epll_con = __raw_readl(S5P_EPLL_CON);
86 epll_con_k = __raw_readl(S5P_EPLL_CON_K);
87
88 epll_con_k &= ~(PLL90XX_KDIV_MASK);
89 epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
90
91 for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
92 if (epll_div[i][0] == rate) {
93 epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
94 epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
95 (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
96 (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
97 break;
98 }
99 }
100
101 if (i == ARRAY_SIZE(epll_div)) {
102 printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
103 return -EINVAL;
104 }
105
106 __raw_writel(epll_con, S5P_EPLL_CON);
107 __raw_writel(epll_con_k, S5P_EPLL_CON_K);
108
109 clk->rate = rate;
110
111 return 0;
112}
113
114static struct clk_ops s5p6440_epll_ops = {
115 .get_rate = s5p6440_epll_get_rate,
116 .set_rate = s5p6440_epll_set_rate,
117};
118
119static struct clksrc_clk clk_mout_epll = {
120 .clk = {
121 .name = "mout_epll",
122 .id = -1,
123 },
124 .sources = &clk_src_epll,
125 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 2, .size = 1 },
126};
127
128static struct clksrc_clk clk_mout_mpll = {
129 .clk = {
130 .name = "mout_mpll",
131 .id = -1,
132 },
133 .sources = &clk_src_mpll,
134 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 1, .size = 1 },
135};
136
137enum perf_level {
138 L0 = 532*1000,
139 L1 = 266*1000,
140 L2 = 133*1000,
141};
142
143static const u32 clock_table[][3] = {
144 /*{ARM_CLK, DIVarm, DIVhclk}*/
145 {L0 * 1000, (0 << ARM_DIV_RATIO_SHIFT), (3 << S5P_CLKDIV0_HCLK_SHIFT)},
146 {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P_CLKDIV0_HCLK_SHIFT)},
147 {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P_CLKDIV0_HCLK_SHIFT)},
148};
149
150static unsigned long s5p6440_armclk_get_rate(struct clk *clk)
151{
152 unsigned long rate = clk_get_rate(clk->parent);
153 u32 clkdiv;
154
155 /* divisor mask starts at bit0, so no need to shift */
156 clkdiv = __raw_readl(ARM_CLK_DIV) & ARM_DIV_MASK;
157
158 return rate / (clkdiv + 1);
159}
160
161static unsigned long s5p6440_armclk_round_rate(struct clk *clk,
162 unsigned long rate)
163{
164 u32 iter;
165
166 for (iter = 1 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
167 if (rate > clock_table[iter][0])
168 return clock_table[iter-1][0];
169 }
170
171 return clock_table[ARRAY_SIZE(clock_table) - 1][0];
172}
173
174static int s5p6440_armclk_set_rate(struct clk *clk, unsigned long rate)
175{
176 u32 round_tmp;
177 u32 iter;
178 u32 clk_div0_tmp;
179 u32 cur_rate = clk->ops->get_rate(clk);
180 unsigned long flags;
181
182 round_tmp = clk->ops->round_rate(clk, rate);
183 if (round_tmp == cur_rate)
184 return 0;
185
186
187 for (iter = 0 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
188 if (round_tmp == clock_table[iter][0])
189 break;
190 }
191
192 if (iter >= ARRAY_SIZE(clock_table))
193 iter = ARRAY_SIZE(clock_table) - 1;
194
195 local_irq_save(flags);
196 if (cur_rate > round_tmp) {
197 /* Frequency Down */
198 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
199 clk_div0_tmp |= clock_table[iter][1];
200 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
201
202 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
203 ~(S5P_CLKDIV0_HCLK_MASK);
204 clk_div0_tmp |= clock_table[iter][2];
205 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
206
207
208 } else {
209 /* Frequency Up */
210 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
211 ~(S5P_CLKDIV0_HCLK_MASK);
212 clk_div0_tmp |= clock_table[iter][2];
213 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
214
215 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
216 clk_div0_tmp |= clock_table[iter][1];
217 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
218 }
219 local_irq_restore(flags);
220
221 clk->rate = clock_table[iter][0];
222
223 return 0;
224}
225
226static struct clk_ops s5p6440_clkarm_ops = {
227 .get_rate = s5p6440_armclk_get_rate,
228 .set_rate = s5p6440_armclk_set_rate,
229 .round_rate = s5p6440_armclk_round_rate,
230};
231
232static struct clksrc_clk clk_armclk = {
233 .clk = {
234 .name = "armclk",
235 .id = 1,
236 .parent = &clk_mout_apll.clk,
237 .ops = &s5p6440_clkarm_ops,
238 },
239 .reg_div = { .reg = S5P_CLK_DIV0, .shift = 0, .size = 4 },
240};
241
242static struct clksrc_clk clk_dout_mpll = {
243 .clk = {
244 .name = "dout_mpll",
245 .id = -1,
246 .parent = &clk_mout_mpll.clk,
247 },
248 .reg_div = { .reg = S5P_CLK_DIV0, .shift = 4, .size = 1 },
249};
250
251static struct clksrc_clk clk_hclk = {
252 .clk = {
253 .name = "clk_hclk",
254 .id = -1,
255 .parent = &clk_armclk.clk,
256 },
257 .reg_div = { .reg = S5P_CLK_DIV0, .shift = 8, .size = 4 },
258};
259
260static struct clksrc_clk clk_pclk = {
261 .clk = {
262 .name = "clk_pclk",
263 .id = -1,
264 .parent = &clk_hclk.clk,
265 },
266 .reg_div = { .reg = S5P_CLK_DIV0, .shift = 12, .size = 4 },
267};
268
269static struct clk *clkset_hclklow_list[] = {
270 &clk_mout_apll.clk,
271 &clk_mout_mpll.clk,
272};
273
274static struct clksrc_sources clkset_hclklow = {
275 .sources = clkset_hclklow_list,
276 .nr_sources = ARRAY_SIZE(clkset_hclklow_list),
277};
278
279static struct clksrc_clk clk_hclk_low = {
280 .clk = {
281 .name = "hclk_low",
282 .id = -1,
283 },
284 .sources = &clkset_hclklow,
285 .reg_src = { .reg = S5P_SYS_OTHERS, .shift = 6, .size = 1 },
286 .reg_div = { .reg = S5P_CLK_DIV3, .shift = 8, .size = 4 },
287};
288
289static struct clksrc_clk clk_pclk_low = {
290 .clk = {
291 .name = "pclk_low",
292 .id = -1,
293 .parent = &clk_hclk_low.clk,
294 },
295 .reg_div = { .reg = S5P_CLK_DIV3, .shift = 12, .size = 4 },
296};
297
298int s5p6440_clk48m_ctrl(struct clk *clk, int enable)
299{
300 unsigned long flags;
301 u32 val;
302
303 /* can't rely on clock lock, this register has other usages */
304 local_irq_save(flags);
305
306 val = __raw_readl(S5P_OTHERS);
307 if (enable)
308 val |= S5P_OTHERS_USB_SIG_MASK;
309 else
310 val &= ~S5P_OTHERS_USB_SIG_MASK;
311
312 __raw_writel(val, S5P_OTHERS);
313
314 local_irq_restore(flags);
315
316 return 0;
317}
318
319static int s5p6440_pclk_ctrl(struct clk *clk, int enable)
320{
321 return s5p_gatectrl(S5P_CLK_GATE_PCLK, clk, enable);
322}
323
324static int s5p6440_hclk0_ctrl(struct clk *clk, int enable)
325{
326 return s5p_gatectrl(S5P_CLK_GATE_HCLK0, clk, enable);
327}
328
329static int s5p6440_hclk1_ctrl(struct clk *clk, int enable)
330{
331 return s5p_gatectrl(S5P_CLK_GATE_HCLK1, clk, enable);
332}
333
334static int s5p6440_sclk_ctrl(struct clk *clk, int enable)
335{
336 return s5p_gatectrl(S5P_CLK_GATE_SCLK0, clk, enable);
337}
338
339static int s5p6440_sclk1_ctrl(struct clk *clk, int enable)
340{
341 return s5p_gatectrl(S5P_CLK_GATE_SCLK1, clk, enable);
342}
343
344static int s5p6440_mem_ctrl(struct clk *clk, int enable)
345{
346 return s5p_gatectrl(S5P_CLK_GATE_MEM0, clk, enable);
347}
348
349/*
350 * The following clocks will be disabled during clock initialization. It is
351 * recommended to keep the following clocks disabled until the driver requests
352 * for enabling the clock.
353 */
354static struct clk init_clocks_disable[] = {
355 {
356 .name = "nand",
357 .id = -1,
358 .parent = &clk_hclk.clk,
359 .enable = s5p6440_mem_ctrl,
360 .ctrlbit = S5P_CLKCON_MEM0_HCLK_NFCON,
361 }, {
362 .name = "adc",
363 .id = -1,
364 .parent = &clk_pclk_low.clk,
365 .enable = s5p6440_pclk_ctrl,
366 .ctrlbit = S5P_CLKCON_PCLK_TSADC,
367 }, {
368 .name = "i2c",
369 .id = -1,
370 .parent = &clk_pclk_low.clk,
371 .enable = s5p6440_pclk_ctrl,
372 .ctrlbit = S5P_CLKCON_PCLK_IIC0,
373 }, {
374 .name = "i2s_v40",
375 .id = 0,
376 .parent = &clk_pclk_low.clk,
377 .enable = s5p6440_pclk_ctrl,
378 .ctrlbit = S5P_CLKCON_PCLK_IIS2,
379 }, {
380 .name = "spi",
381 .id = 0,
382 .parent = &clk_pclk_low.clk,
383 .enable = s5p6440_pclk_ctrl,
384 .ctrlbit = S5P_CLKCON_PCLK_SPI0,
385 }, {
386 .name = "spi",
387 .id = 1,
388 .parent = &clk_pclk_low.clk,
389 .enable = s5p6440_pclk_ctrl,
390 .ctrlbit = S5P_CLKCON_PCLK_SPI1,
391 }, {
392 .name = "sclk_spi_48",
393 .id = 0,
394 .parent = &clk_48m,
395 .enable = s5p6440_sclk_ctrl,
396 .ctrlbit = S5P_CLKCON_SCLK0_SPI0_48,
397 }, {
398 .name = "sclk_spi_48",
399 .id = 1,
400 .parent = &clk_48m,
401 .enable = s5p6440_sclk_ctrl,
402 .ctrlbit = S5P_CLKCON_SCLK0_SPI1_48,
403 }, {
404 .name = "mmc_48m",
405 .id = 0,
406 .parent = &clk_48m,
407 .enable = s5p6440_sclk_ctrl,
408 .ctrlbit = S5P_CLKCON_SCLK0_MMC0_48,
409 }, {
410 .name = "mmc_48m",
411 .id = 1,
412 .parent = &clk_48m,
413 .enable = s5p6440_sclk_ctrl,
414 .ctrlbit = S5P_CLKCON_SCLK0_MMC1_48,
415 }, {
416 .name = "mmc_48m",
417 .id = 2,
418 .parent = &clk_48m,
419 .enable = s5p6440_sclk_ctrl,
420 .ctrlbit = S5P_CLKCON_SCLK0_MMC2_48,
421 }, {
422 .name = "otg",
423 .id = -1,
424 .parent = &clk_hclk_low.clk,
425 .enable = s5p6440_hclk0_ctrl,
426 .ctrlbit = S5P_CLKCON_HCLK0_USB
427 }, {
428 .name = "post",
429 .id = -1,
430 .parent = &clk_hclk_low.clk,
431 .enable = s5p6440_hclk0_ctrl,
432 .ctrlbit = S5P_CLKCON_HCLK0_POST0
433 }, {
434 .name = "lcd",
435 .id = -1,
436 .parent = &clk_hclk_low.clk,
437 .enable = s5p6440_hclk1_ctrl,
438 .ctrlbit = S5P_CLKCON_HCLK1_DISPCON,
439 }, {
440 .name = "hsmmc",
441 .id = 0,
442 .parent = &clk_hclk_low.clk,
443 .enable = s5p6440_hclk0_ctrl,
444 .ctrlbit = S5P_CLKCON_HCLK0_HSMMC0,
445 }, {
446 .name = "hsmmc",
447 .id = 1,
448 .parent = &clk_hclk_low.clk,
449 .enable = s5p6440_hclk0_ctrl,
450 .ctrlbit = S5P_CLKCON_HCLK0_HSMMC1,
451 }, {
452 .name = "hsmmc",
453 .id = 2,
454 .parent = &clk_hclk_low.clk,
455 .enable = s5p6440_hclk0_ctrl,
456 .ctrlbit = S5P_CLKCON_HCLK0_HSMMC2,
457 }, {
458 .name = "rtc",
459 .id = -1,
460 .parent = &clk_pclk_low.clk,
461 .enable = s5p6440_pclk_ctrl,
462 .ctrlbit = S5P_CLKCON_PCLK_RTC,
463 }, {
464 .name = "watchdog",
465 .id = -1,
466 .parent = &clk_pclk_low.clk,
467 .enable = s5p6440_pclk_ctrl,
468 .ctrlbit = S5P_CLKCON_PCLK_WDT,
469 }, {
470 .name = "timers",
471 .id = -1,
472 .parent = &clk_pclk_low.clk,
473 .enable = s5p6440_pclk_ctrl,
474 .ctrlbit = S5P_CLKCON_PCLK_PWM,
475 }, {
476 .name = "hclk_fimgvg",
477 .id = -1,
478 .parent = &clk_hclk.clk,
479 .enable = s5p6440_hclk1_ctrl,
480 .ctrlbit = (1 << 2),
481 }, {
482 .name = "tsi",
483 .id = -1,
484 .parent = &clk_hclk_low.clk,
485 .enable = s5p6440_hclk1_ctrl,
486 .ctrlbit = (1 << 0),
487 }, {
488 .name = "pclk_fimgvg",
489 .id = -1,
490 .parent = &clk_pclk.clk,
491 .enable = s5p6440_pclk_ctrl,
492 .ctrlbit = (1 << 31),
493 }, {
494 .name = "dmc0",
495 .id = -1,
496 .parent = &clk_pclk.clk,
497 .enable = s5p6440_pclk_ctrl,
498 .ctrlbit = (1 << 30),
499 }, {
500 .name = "etm",
501 .id = -1,
502 .parent = &clk_pclk.clk,
503 .enable = s5p6440_pclk_ctrl,
504 .ctrlbit = (1 << 29),
505 }, {
506 .name = "dsim",
507 .id = -1,
508 .parent = &clk_pclk_low.clk,
509 .enable = s5p6440_pclk_ctrl,
510 .ctrlbit = (1 << 28),
511 }, {
512 .name = "gps",
513 .id = -1,
514 .parent = &clk_pclk_low.clk,
515 .enable = s5p6440_pclk_ctrl,
516 .ctrlbit = (1 << 25),
517 }, {
518 .name = "pcm",
519 .id = -1,
520 .parent = &clk_pclk_low.clk,
521 .enable = s5p6440_pclk_ctrl,
522 .ctrlbit = (1 << 8),
523 }, {
524 .name = "irom",
525 .id = -1,
526 .parent = &clk_hclk.clk,
527 .enable = s5p6440_hclk0_ctrl,
528 .ctrlbit = (1 << 25),
529 }, {
530 .name = "dma",
531 .id = -1,
532 .parent = &clk_hclk_low.clk,
533 .enable = s5p6440_hclk0_ctrl,
534 .ctrlbit = (1 << 12),
535 }, {
536 .name = "2d",
537 .id = -1,
538 .parent = &clk_hclk.clk,
539 .enable = s5p6440_hclk0_ctrl,
540 .ctrlbit = (1 << 8),
541 },
542};
543
544/*
545 * The following clocks will be enabled during clock initialization.
546 */
547static struct clk init_clocks[] = {
548 {
549 .name = "gpio",
550 .id = -1,
551 .parent = &clk_pclk_low.clk,
552 .enable = s5p6440_pclk_ctrl,
553 .ctrlbit = S5P_CLKCON_PCLK_GPIO,
554 }, {
555 .name = "uart",
556 .id = 0,
557 .parent = &clk_pclk_low.clk,
558 .enable = s5p6440_pclk_ctrl,
559 .ctrlbit = S5P_CLKCON_PCLK_UART0,
560 }, {
561 .name = "uart",
562 .id = 1,
563 .parent = &clk_pclk_low.clk,
564 .enable = s5p6440_pclk_ctrl,
565 .ctrlbit = S5P_CLKCON_PCLK_UART1,
566 }, {
567 .name = "uart",
568 .id = 2,
569 .parent = &clk_pclk_low.clk,
570 .enable = s5p6440_pclk_ctrl,
571 .ctrlbit = S5P_CLKCON_PCLK_UART2,
572 }, {
573 .name = "uart",
574 .id = 3,
575 .parent = &clk_pclk_low.clk,
576 .enable = s5p6440_pclk_ctrl,
577 .ctrlbit = S5P_CLKCON_PCLK_UART3,
578 }, {
579 .name = "mem",
580 .id = -1,
581 .parent = &clk_hclk.clk,
582 .enable = s5p6440_hclk0_ctrl,
583 .ctrlbit = (1 << 21),
584 }, {
585 .name = "intc",
586 .id = -1,
587 .parent = &clk_hclk.clk,
588 .enable = s5p6440_hclk0_ctrl,
589 .ctrlbit = (1 << 1),
590 },
591};
592
593static struct clk clk_iis_cd_v40 = {
594 .name = "iis_cdclk_v40",
595 .id = -1,
596};
597
598static struct clk clk_pcm_cd = {
599 .name = "pcm_cdclk",
600 .id = -1,
601};
602
603static struct clk *clkset_group1_list[] = {
604 &clk_mout_epll.clk,
605 &clk_dout_mpll.clk,
606 &clk_fin_epll,
607};
608
609static struct clksrc_sources clkset_group1 = {
610 .sources = clkset_group1_list,
611 .nr_sources = ARRAY_SIZE(clkset_group1_list),
612};
613
614static struct clk *clkset_uart_list[] = {
615 &clk_mout_epll.clk,
616 &clk_dout_mpll.clk,
617};
618
619static struct clksrc_sources clkset_uart = {
620 .sources = clkset_uart_list,
621 .nr_sources = ARRAY_SIZE(clkset_uart_list),
622};
623
624static struct clk *clkset_audio_list[] = {
625 &clk_mout_epll.clk,
626 &clk_dout_mpll.clk,
627 &clk_fin_epll,
628 &clk_iis_cd_v40,
629 &clk_pcm_cd,
630};
631
632static struct clksrc_sources clkset_audio = {
633 .sources = clkset_audio_list,
634 .nr_sources = ARRAY_SIZE(clkset_audio_list),
635};
636
637static struct clksrc_clk clksrcs[] = {
638 {
639 .clk = {
640 .name = "mmc_bus",
641 .id = 0,
642 .ctrlbit = S5P_CLKCON_SCLK0_MMC0,
643 .enable = s5p6440_sclk_ctrl,
644 },
645 .sources = &clkset_group1,
646 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 18, .size = 2 },
647 .reg_div = { .reg = S5P_CLK_DIV1, .shift = 0, .size = 4 },
648 }, {
649 .clk = {
650 .name = "mmc_bus",
651 .id = 1,
652 .ctrlbit = S5P_CLKCON_SCLK0_MMC1,
653 .enable = s5p6440_sclk_ctrl,
654 },
655 .sources = &clkset_group1,
656 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 20, .size = 2 },
657 .reg_div = { .reg = S5P_CLK_DIV1, .shift = 4, .size = 4 },
658 }, {
659 .clk = {
660 .name = "mmc_bus",
661 .id = 2,
662 .ctrlbit = S5P_CLKCON_SCLK0_MMC2,
663 .enable = s5p6440_sclk_ctrl,
664 },
665 .sources = &clkset_group1,
666 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 22, .size = 2 },
667 .reg_div = { .reg = S5P_CLK_DIV1, .shift = 8, .size = 4 },
668 }, {
669 .clk = {
670 .name = "uclk1",
671 .id = -1,
672 .ctrlbit = S5P_CLKCON_SCLK0_UART,
673 .enable = s5p6440_sclk_ctrl,
674 },
675 .sources = &clkset_uart,
676 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 13, .size = 1 },
677 .reg_div = { .reg = S5P_CLK_DIV2, .shift = 16, .size = 4 },
678 }, {
679 .clk = {
680 .name = "spi_epll",
681 .id = 0,
682 .ctrlbit = S5P_CLKCON_SCLK0_SPI0,
683 .enable = s5p6440_sclk_ctrl,
684 },
685 .sources = &clkset_group1,
686 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 14, .size = 2 },
687 .reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
688 }, {
689 .clk = {
690 .name = "spi_epll",
691 .id = 1,
692 .ctrlbit = S5P_CLKCON_SCLK0_SPI1,
693 .enable = s5p6440_sclk_ctrl,
694 },
695 .sources = &clkset_group1,
696 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 16, .size = 2 },
697 .reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
698 }, {
699 .clk = {
700 .name = "sclk_post",
701 .id = -1,
702 .ctrlbit = (1 << 10),
703 .enable = s5p6440_sclk_ctrl,
704 },
705 .sources = &clkset_group1,
706 .reg_src = { .reg = S5P_CLK_SRC0, .shift = 26, .size = 2 },
707 .reg_div = { .reg = S5P_CLK_DIV1, .shift = 12, .size = 4 },
708 }, {
709 .clk = {
710 .name = "sclk_dispcon",
711 .id = -1,
712 .ctrlbit = (1 << 1),
713 .enable = s5p6440_sclk1_ctrl,
714 },
715 .sources = &clkset_group1,
716 .reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 2 },
717 .reg_div = { .reg = S5P_CLK_DIV3, .shift = 0, .size = 4 },
718 }, {
719 .clk = {
720 .name = "sclk_fimgvg",
721 .id = -1,
722 .ctrlbit = (1 << 2),
723 .enable = s5p6440_sclk1_ctrl,
724 },
725 .sources = &clkset_group1,
726 .reg_src = { .reg = S5P_CLK_SRC1, .shift = 8, .size = 2 },
727 .reg_div = { .reg = S5P_CLK_DIV3, .shift = 4, .size = 4 },
728 }, {
729 .clk = {
730 .name = "sclk_audio2",
731 .id = -1,
732 .ctrlbit = (1 << 11),
733 .enable = s5p6440_sclk_ctrl,
734 },
735 .sources = &clkset_audio,
736 .reg_src = { .reg = S5P_CLK_SRC1, .shift = 0, .size = 3 },
737 .reg_div = { .reg = S5P_CLK_DIV2, .shift = 24, .size = 4 },
738 },
739};
740
741/* Clock initialisation code */
742static struct clksrc_clk *sysclks[] = {
743 &clk_mout_apll,
744 &clk_mout_epll,
745 &clk_mout_mpll,
746 &clk_dout_mpll,
747 &clk_armclk,
748 &clk_hclk,
749 &clk_pclk,
750 &clk_hclk_low,
751 &clk_pclk_low,
752};
753
754void __init_or_cpufreq s5p6440_setup_clocks(void)
755{
756 struct clk *xtal_clk;
757 unsigned long xtal;
758 unsigned long fclk;
759 unsigned long hclk;
760 unsigned long hclk_low;
761 unsigned long pclk;
762 unsigned long pclk_low;
763 unsigned long epll;
764 unsigned long apll;
765 unsigned long mpll;
766 unsigned int ptr;
767
768 /* Set S5P6440 functions for clk_fout_epll */
769 clk_fout_epll.enable = s5p6440_epll_enable;
770 clk_fout_epll.ops = &s5p6440_epll_ops;
771
772 clk_48m.enable = s5p6440_clk48m_ctrl;
773
774 xtal_clk = clk_get(NULL, "ext_xtal");
775 BUG_ON(IS_ERR(xtal_clk));
776
777 xtal = clk_get_rate(xtal_clk);
778 clk_put(xtal_clk);
779
780 epll = s5p_get_pll90xx(xtal, __raw_readl(S5P_EPLL_CON),
781 __raw_readl(S5P_EPLL_CON_K));
782 mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
783 apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4502);
784
785 clk_fout_mpll.rate = mpll;
786 clk_fout_epll.rate = epll;
787 clk_fout_apll.rate = apll;
788
789 printk(KERN_INFO "S5P6440: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
790 " E=%ld.%ldMHz\n",
791 print_mhz(apll), print_mhz(mpll), print_mhz(epll));
792
793 fclk = clk_get_rate(&clk_armclk.clk);
794 hclk = clk_get_rate(&clk_hclk.clk);
795 pclk = clk_get_rate(&clk_pclk.clk);
796 hclk_low = clk_get_rate(&clk_hclk_low.clk);
797 pclk_low = clk_get_rate(&clk_pclk_low.clk);
798
799 printk(KERN_INFO "S5P6440: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
800 " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
801 print_mhz(hclk), print_mhz(hclk_low),
802 print_mhz(pclk), print_mhz(pclk_low));
803
804 clk_f.rate = fclk;
805 clk_h.rate = hclk;
806 clk_p.rate = pclk;
807
808 for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
809 s3c_set_clksrc(&clksrcs[ptr], true);
810}
811
812static struct clk *clks[] __initdata = {
813 &clk_ext,
814 &clk_iis_cd_v40,
815 &clk_pcm_cd,
816};
817
818void __init s5p6440_register_clocks(void)
819{
820 struct clk *clkp;
821 int ret;
822 int ptr;
823
824 ret = s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
825 if (ret > 0)
826 printk(KERN_ERR "Failed to register %u clocks\n", ret);
827
828 for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
829 s3c_register_clksrc(sysclks[ptr], 1);
830
831 s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
832 s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
833
834 clkp = init_clocks_disable;
835 for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
836
837 ret = s3c24xx_register_clock(clkp);
838 if (ret < 0) {
839 printk(KERN_ERR "Failed to register clock %s (%d)\n",
840 clkp->name, ret);
841 }
842 (clkp->enable)(clkp, 0);
843 }
844
845 s3c_pwmclk_init();
846}
diff --git a/arch/arm/mach-s5p6440/include/mach/regs-clock.h b/arch/arm/mach-s5p6440/include/mach/regs-clock.h
deleted file mode 100644
index c783ecc9f193..000000000000
--- a/arch/arm/mach-s5p6440/include/mach/regs-clock.h
+++ /dev/null
@@ -1,130 +0,0 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/regs-clock.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - Clock register definitions
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_REGS_CLOCK_H
14#define __ASM_ARCH_REGS_CLOCK_H __FILE__
15
16#include <mach/map.h>
17
18#define S5P_CLKREG(x) (S3C_VA_SYS + (x))
19
20#define S5P_APLL_LOCK S5P_CLKREG(0x00)
21#define S5P_MPLL_LOCK S5P_CLKREG(0x04)
22#define S5P_EPLL_LOCK S5P_CLKREG(0x08)
23#define S5P_APLL_CON S5P_CLKREG(0x0C)
24#define S5P_MPLL_CON S5P_CLKREG(0x10)
25#define S5P_EPLL_CON S5P_CLKREG(0x14)
26#define S5P_EPLL_CON_K S5P_CLKREG(0x18)
27#define S5P_CLK_SRC0 S5P_CLKREG(0x1C)
28#define S5P_CLK_DIV0 S5P_CLKREG(0x20)
29#define S5P_CLK_DIV1 S5P_CLKREG(0x24)
30#define S5P_CLK_DIV2 S5P_CLKREG(0x28)
31#define S5P_CLK_OUT S5P_CLKREG(0x2C)
32#define S5P_CLK_GATE_HCLK0 S5P_CLKREG(0x30)
33#define S5P_CLK_GATE_PCLK S5P_CLKREG(0x34)
34#define S5P_CLK_GATE_SCLK0 S5P_CLKREG(0x38)
35#define S5P_CLK_GATE_MEM0 S5P_CLKREG(0x3C)
36#define S5P_CLK_DIV3 S5P_CLKREG(0x40)
37#define S5P_CLK_GATE_HCLK1 S5P_CLKREG(0x44)
38#define S5P_CLK_GATE_SCLK1 S5P_CLKREG(0x48)
39#define S5P_AHB_CON0 S5P_CLKREG(0x100)
40#define S5P_CLK_SRC1 S5P_CLKREG(0x10C)
41#define S5P_SWRESET S5P_CLKREG(0x114)
42#define S5P_SYS_ID S5P_CLKREG(0x118)
43#define S5P_SYS_OTHERS S5P_CLKREG(0x11C)
44#define S5P_MEM_CFG_STAT S5P_CLKREG(0x12C)
45#define S5P_PWR_CFG S5P_CLKREG(0x804)
46#define S5P_EINT_WAKEUP_MASK S5P_CLKREG(0x808)
47#define S5P_NORMAL_CFG S5P_CLKREG(0x810)
48#define S5P_STOP_CFG S5P_CLKREG(0x814)
49#define S5P_SLEEP_CFG S5P_CLKREG(0x818)
50#define S5P_OSC_FREQ S5P_CLKREG(0x820)
51#define S5P_OSC_STABLE S5P_CLKREG(0x824)
52#define S5P_PWR_STABLE S5P_CLKREG(0x828)
53#define S5P_MTC_STABLE S5P_CLKREG(0x830)
54#define S5P_OTHERS S5P_CLKREG(0x900)
55#define S5P_RST_STAT S5P_CLKREG(0x904)
56#define S5P_WAKEUP_STAT S5P_CLKREG(0x908)
57#define S5P_SLPEN S5P_CLKREG(0x930)
58#define S5P_INFORM0 S5P_CLKREG(0xA00)
59#define S5P_INFORM1 S5P_CLKREG(0xA04)
60#define S5P_INFORM2 S5P_CLKREG(0xA08)
61#define S5P_INFORM3 S5P_CLKREG(0xA0C)
62
63/* CLKDIV0 */
64#define S5P_CLKDIV0_PCLK_MASK (0xf << 12)
65#define S5P_CLKDIV0_PCLK_SHIFT (12)
66#define S5P_CLKDIV0_HCLK_MASK (0xf << 8)
67#define S5P_CLKDIV0_HCLK_SHIFT (8)
68#define S5P_CLKDIV0_MPLL_MASK (0x1 << 4)
69#define S5P_CLKDIV0_ARM_MASK (0xf << 0)
70#define S5P_CLKDIV0_ARM_SHIFT (0)
71
72/* CLKDIV3 */
73#define S5P_CLKDIV3_PCLK_LOW_MASK (0xf << 12)
74#define S5P_CLKDIV3_PCLK_LOW_SHIFT (12)
75#define S5P_CLKDIV3_HCLK_LOW_MASK (0xf << 8)
76#define S5P_CLKDIV3_HCLK_LOW_SHIFT (8)
77
78/* HCLK0 GATE Registers */
79#define S5P_CLKCON_HCLK0_USB (1<<20)
80#define S5P_CLKCON_HCLK0_HSMMC2 (1<<19)
81#define S5P_CLKCON_HCLK0_HSMMC1 (1<<18)
82#define S5P_CLKCON_HCLK0_HSMMC0 (1<<17)
83#define S5P_CLKCON_HCLK0_POST0 (1<<5)
84
85/* HCLK1 GATE Registers */
86#define S5P_CLKCON_HCLK1_DISPCON (1<<1)
87
88/* PCLK GATE Registers */
89#define S5P_CLKCON_PCLK_IIS2 (1<<26)
90#define S5P_CLKCON_PCLK_SPI1 (1<<22)
91#define S5P_CLKCON_PCLK_SPI0 (1<<21)
92#define S5P_CLKCON_PCLK_GPIO (1<<18)
93#define S5P_CLKCON_PCLK_IIC0 (1<<17)
94#define S5P_CLKCON_PCLK_TSADC (1<<12)
95#define S5P_CLKCON_PCLK_PWM (1<<7)
96#define S5P_CLKCON_PCLK_RTC (1<<6)
97#define S5P_CLKCON_PCLK_WDT (1<<5)
98#define S5P_CLKCON_PCLK_UART3 (1<<4)
99#define S5P_CLKCON_PCLK_UART2 (1<<3)
100#define S5P_CLKCON_PCLK_UART1 (1<<2)
101#define S5P_CLKCON_PCLK_UART0 (1<<1)
102
103/* SCLK0 GATE Registers */
104#define S5P_CLKCON_SCLK0_MMC2_48 (1<<29)
105#define S5P_CLKCON_SCLK0_MMC1_48 (1<<28)
106#define S5P_CLKCON_SCLK0_MMC0_48 (1<<27)
107#define S5P_CLKCON_SCLK0_MMC2 (1<<26)
108#define S5P_CLKCON_SCLK0_MMC1 (1<<25)
109#define S5P_CLKCON_SCLK0_MMC0 (1<<24)
110#define S5P_CLKCON_SCLK0_SPI1_48 (1<<23)
111#define S5P_CLKCON_SCLK0_SPI0_48 (1<<22)
112#define S5P_CLKCON_SCLK0_SPI1 (1<<21)
113#define S5P_CLKCON_SCLK0_SPI0 (1<<20)
114#define S5P_CLKCON_SCLK0_UART (1<<5)
115
116/* SCLK1 GATE Registers */
117
118/* MEM0 GATE Registers */
119#define S5P_CLKCON_MEM0_HCLK_NFCON (1<<2)
120
121/*OTHERS Resgister */
122#define S5P_OTHERS_USB_SIG_MASK (1<<16)
123#define S5P_OTHERS_HCLK_LOW_SEL_MPLL (1<<6)
124
125/* Compatibility defines */
126#define ARM_CLK_DIV S5P_CLK_DIV0
127#define ARM_DIV_RATIO_SHIFT 0
128#define ARM_DIV_MASK (0xf << ARM_DIV_RATIO_SHIFT)
129
130#endif /* __ASM_ARCH_REGS_CLOCK_H */
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c
new file mode 100644
index 000000000000..f93dcd8b4d6a
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c
@@ -0,0 +1,626 @@
1/* linux/arch/arm/mach-s5p64x0/clock-s5p6440.c
2 *
3 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * S5P6440 - Clock support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/list.h>
17#include <linux/errno.h>
18#include <linux/err.h>
19#include <linux/clk.h>
20#include <linux/sysdev.h>
21#include <linux/io.h>
22
23#include <mach/hardware.h>
24#include <mach/map.h>
25#include <mach/regs-clock.h>
26#include <mach/s5p64x0-clock.h>
27
28#include <plat/cpu-freq.h>
29#include <plat/clock.h>
30#include <plat/cpu.h>
31#include <plat/pll.h>
32#include <plat/s5p-clock.h>
33#include <plat/clock-clksrc.h>
34#include <plat/s5p6440.h>
35
36static u32 epll_div[][5] = {
37 { 36000000, 0, 48, 1, 4 },
38 { 48000000, 0, 32, 1, 3 },
39 { 60000000, 0, 40, 1, 3 },
40 { 72000000, 0, 48, 1, 3 },
41 { 84000000, 0, 28, 1, 2 },
42 { 96000000, 0, 32, 1, 2 },
43 { 32768000, 45264, 43, 1, 4 },
44 { 45158000, 6903, 30, 1, 3 },
45 { 49152000, 50332, 32, 1, 3 },
46 { 67738000, 10398, 45, 1, 3 },
47 { 73728000, 9961, 49, 1, 3 }
48};
49
50static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
51{
52 unsigned int epll_con, epll_con_k;
53 unsigned int i;
54
55 if (clk->rate == rate) /* Return if nothing changed */
56 return 0;
57
58 epll_con = __raw_readl(S5P64X0_EPLL_CON);
59 epll_con_k = __raw_readl(S5P64X0_EPLL_CON_K);
60
61 epll_con_k &= ~(PLL90XX_KDIV_MASK);
62 epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
63
64 for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
65 if (epll_div[i][0] == rate) {
66 epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
67 epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
68 (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
69 (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
70 break;
71 }
72 }
73
74 if (i == ARRAY_SIZE(epll_div)) {
75 printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
76 return -EINVAL;
77 }
78
79 __raw_writel(epll_con, S5P64X0_EPLL_CON);
80 __raw_writel(epll_con_k, S5P64X0_EPLL_CON_K);
81
82 clk->rate = rate;
83
84 return 0;
85}
86
87static struct clk_ops s5p6440_epll_ops = {
88 .get_rate = s5p64x0_epll_get_rate,
89 .set_rate = s5p6440_epll_set_rate,
90};
91
92static struct clksrc_clk clk_hclk = {
93 .clk = {
94 .name = "clk_hclk",
95 .id = -1,
96 .parent = &clk_armclk.clk,
97 },
98 .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 8, .size = 4 },
99};
100
101static struct clksrc_clk clk_pclk = {
102 .clk = {
103 .name = "clk_pclk",
104 .id = -1,
105 .parent = &clk_hclk.clk,
106 },
107 .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 12, .size = 4 },
108};
109static struct clksrc_clk clk_hclk_low = {
110 .clk = {
111 .name = "clk_hclk_low",
112 .id = -1,
113 },
114 .sources = &clkset_hclk_low,
115 .reg_src = { .reg = S5P64X0_SYS_OTHERS, .shift = 6, .size = 1 },
116 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 8, .size = 4 },
117};
118
119static struct clksrc_clk clk_pclk_low = {
120 .clk = {
121 .name = "clk_pclk_low",
122 .id = -1,
123 .parent = &clk_hclk_low.clk,
124 },
125 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 12, .size = 4 },
126};
127
128/*
129 * The following clocks will be disabled during clock initialization. It is
130 * recommended to keep the following clocks disabled until the driver requests
131 * for enabling the clock.
132 */
133static struct clk init_clocks_disable[] = {
134 {
135 .name = "nand",
136 .id = -1,
137 .parent = &clk_hclk.clk,
138 .enable = s5p64x0_mem_ctrl,
139 .ctrlbit = (1 << 2),
140 }, {
141 .name = "post",
142 .id = -1,
143 .parent = &clk_hclk_low.clk,
144 .enable = s5p64x0_hclk0_ctrl,
145 .ctrlbit = (1 << 5)
146 }, {
147 .name = "2d",
148 .id = -1,
149 .parent = &clk_hclk.clk,
150 .enable = s5p64x0_hclk0_ctrl,
151 .ctrlbit = (1 << 8),
152 }, {
153 .name = "hsmmc",
154 .id = 0,
155 .parent = &clk_hclk_low.clk,
156 .enable = s5p64x0_hclk0_ctrl,
157 .ctrlbit = (1 << 17),
158 }, {
159 .name = "hsmmc",
160 .id = 1,
161 .parent = &clk_hclk_low.clk,
162 .enable = s5p64x0_hclk0_ctrl,
163 .ctrlbit = (1 << 18),
164 }, {
165 .name = "hsmmc",
166 .id = 2,
167 .parent = &clk_hclk_low.clk,
168 .enable = s5p64x0_hclk0_ctrl,
169 .ctrlbit = (1 << 19),
170 }, {
171 .name = "otg",
172 .id = -1,
173 .parent = &clk_hclk_low.clk,
174 .enable = s5p64x0_hclk0_ctrl,
175 .ctrlbit = (1 << 20)
176 }, {
177 .name = "irom",
178 .id = -1,
179 .parent = &clk_hclk.clk,
180 .enable = s5p64x0_hclk0_ctrl,
181 .ctrlbit = (1 << 25),
182 }, {
183 .name = "lcd",
184 .id = -1,
185 .parent = &clk_hclk_low.clk,
186 .enable = s5p64x0_hclk1_ctrl,
187 .ctrlbit = (1 << 1),
188 }, {
189 .name = "hclk_fimgvg",
190 .id = -1,
191 .parent = &clk_hclk.clk,
192 .enable = s5p64x0_hclk1_ctrl,
193 .ctrlbit = (1 << 2),
194 }, {
195 .name = "tsi",
196 .id = -1,
197 .parent = &clk_hclk_low.clk,
198 .enable = s5p64x0_hclk1_ctrl,
199 .ctrlbit = (1 << 0),
200 }, {
201 .name = "watchdog",
202 .id = -1,
203 .parent = &clk_pclk_low.clk,
204 .enable = s5p64x0_pclk_ctrl,
205 .ctrlbit = (1 << 5),
206 }, {
207 .name = "rtc",
208 .id = -1,
209 .parent = &clk_pclk_low.clk,
210 .enable = s5p64x0_pclk_ctrl,
211 .ctrlbit = (1 << 6),
212 }, {
213 .name = "timers",
214 .id = -1,
215 .parent = &clk_pclk_low.clk,
216 .enable = s5p64x0_pclk_ctrl,
217 .ctrlbit = (1 << 7),
218 }, {
219 .name = "pcm",
220 .id = -1,
221 .parent = &clk_pclk_low.clk,
222 .enable = s5p64x0_pclk_ctrl,
223 .ctrlbit = (1 << 8),
224 }, {
225 .name = "adc",
226 .id = -1,
227 .parent = &clk_pclk_low.clk,
228 .enable = s5p64x0_pclk_ctrl,
229 .ctrlbit = (1 << 12),
230 }, {
231 .name = "i2c",
232 .id = -1,
233 .parent = &clk_pclk_low.clk,
234 .enable = s5p64x0_pclk_ctrl,
235 .ctrlbit = (1 << 17),
236 }, {
237 .name = "spi",
238 .id = 0,
239 .parent = &clk_pclk_low.clk,
240 .enable = s5p64x0_pclk_ctrl,
241 .ctrlbit = (1 << 21),
242 }, {
243 .name = "spi",
244 .id = 1,
245 .parent = &clk_pclk_low.clk,
246 .enable = s5p64x0_pclk_ctrl,
247 .ctrlbit = (1 << 22),
248 }, {
249 .name = "gps",
250 .id = -1,
251 .parent = &clk_pclk_low.clk,
252 .enable = s5p64x0_pclk_ctrl,
253 .ctrlbit = (1 << 25),
254 }, {
255 .name = "i2s_v40",
256 .id = 0,
257 .parent = &clk_pclk_low.clk,
258 .enable = s5p64x0_pclk_ctrl,
259 .ctrlbit = (1 << 26),
260 }, {
261 .name = "dsim",
262 .id = -1,
263 .parent = &clk_pclk_low.clk,
264 .enable = s5p64x0_pclk_ctrl,
265 .ctrlbit = (1 << 28),
266 }, {
267 .name = "etm",
268 .id = -1,
269 .parent = &clk_pclk.clk,
270 .enable = s5p64x0_pclk_ctrl,
271 .ctrlbit = (1 << 29),
272 }, {
273 .name = "dmc0",
274 .id = -1,
275 .parent = &clk_pclk.clk,
276 .enable = s5p64x0_pclk_ctrl,
277 .ctrlbit = (1 << 30),
278 }, {
279 .name = "pclk_fimgvg",
280 .id = -1,
281 .parent = &clk_pclk.clk,
282 .enable = s5p64x0_pclk_ctrl,
283 .ctrlbit = (1 << 31),
284 }, {
285 .name = "sclk_spi_48",
286 .id = 0,
287 .parent = &clk_48m,
288 .enable = s5p64x0_sclk_ctrl,
289 .ctrlbit = (1 << 22),
290 }, {
291 .name = "sclk_spi_48",
292 .id = 1,
293 .parent = &clk_48m,
294 .enable = s5p64x0_sclk_ctrl,
295 .ctrlbit = (1 << 23),
296 }, {
297 .name = "mmc_48m",
298 .id = 0,
299 .parent = &clk_48m,
300 .enable = s5p64x0_sclk_ctrl,
301 .ctrlbit = (1 << 27),
302 }, {
303 .name = "mmc_48m",
304 .id = 1,
305 .parent = &clk_48m,
306 .enable = s5p64x0_sclk_ctrl,
307 .ctrlbit = (1 << 28),
308 }, {
309 .name = "mmc_48m",
310 .id = 2,
311 .parent = &clk_48m,
312 .enable = s5p64x0_sclk_ctrl,
313 .ctrlbit = (1 << 29),
314 },
315};
316
317/*
318 * The following clocks will be enabled during clock initialization.
319 */
320static struct clk init_clocks[] = {
321 {
322 .name = "intc",
323 .id = -1,
324 .parent = &clk_hclk.clk,
325 .enable = s5p64x0_hclk0_ctrl,
326 .ctrlbit = (1 << 1),
327 }, {
328 .name = "mem",
329 .id = -1,
330 .parent = &clk_hclk.clk,
331 .enable = s5p64x0_hclk0_ctrl,
332 .ctrlbit = (1 << 21),
333 }, {
334 .name = "dma",
335 .id = -1,
336 .parent = &clk_hclk_low.clk,
337 .enable = s5p64x0_hclk0_ctrl,
338 .ctrlbit = (1 << 12),
339 }, {
340 .name = "uart",
341 .id = 0,
342 .parent = &clk_pclk_low.clk,
343 .enable = s5p64x0_pclk_ctrl,
344 .ctrlbit = (1 << 1),
345 }, {
346 .name = "uart",
347 .id = 1,
348 .parent = &clk_pclk_low.clk,
349 .enable = s5p64x0_pclk_ctrl,
350 .ctrlbit = (1 << 2),
351 }, {
352 .name = "uart",
353 .id = 2,
354 .parent = &clk_pclk_low.clk,
355 .enable = s5p64x0_pclk_ctrl,
356 .ctrlbit = (1 << 3),
357 }, {
358 .name = "uart",
359 .id = 3,
360 .parent = &clk_pclk_low.clk,
361 .enable = s5p64x0_pclk_ctrl,
362 .ctrlbit = (1 << 4),
363 }, {
364 .name = "gpio",
365 .id = -1,
366 .parent = &clk_pclk_low.clk,
367 .enable = s5p64x0_pclk_ctrl,
368 .ctrlbit = (1 << 18),
369 },
370};
371
372static struct clk clk_iis_cd_v40 = {
373 .name = "iis_cdclk_v40",
374 .id = -1,
375};
376
377static struct clk clk_pcm_cd = {
378 .name = "pcm_cdclk",
379 .id = -1,
380};
381
382static struct clk *clkset_group1_list[] = {
383 &clk_mout_epll.clk,
384 &clk_dout_mpll.clk,
385 &clk_fin_epll,
386};
387
388static struct clksrc_sources clkset_group1 = {
389 .sources = clkset_group1_list,
390 .nr_sources = ARRAY_SIZE(clkset_group1_list),
391};
392
393static struct clk *clkset_uart_list[] = {
394 &clk_mout_epll.clk,
395 &clk_dout_mpll.clk,
396};
397
398static struct clksrc_sources clkset_uart = {
399 .sources = clkset_uart_list,
400 .nr_sources = ARRAY_SIZE(clkset_uart_list),
401};
402
403static struct clk *clkset_audio_list[] = {
404 &clk_mout_epll.clk,
405 &clk_dout_mpll.clk,
406 &clk_fin_epll,
407 &clk_iis_cd_v40,
408 &clk_pcm_cd,
409};
410
411static struct clksrc_sources clkset_audio = {
412 .sources = clkset_audio_list,
413 .nr_sources = ARRAY_SIZE(clkset_audio_list),
414};
415
416static struct clksrc_clk clksrcs[] = {
417 {
418 .clk = {
419 .name = "mmc_bus",
420 .id = 0,
421 .ctrlbit = (1 << 24),
422 .enable = s5p64x0_sclk_ctrl,
423 },
424 .sources = &clkset_group1,
425 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
426 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
427 }, {
428 .clk = {
429 .name = "mmc_bus",
430 .id = 1,
431 .ctrlbit = (1 << 25),
432 .enable = s5p64x0_sclk_ctrl,
433 },
434 .sources = &clkset_group1,
435 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
436 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
437 }, {
438 .clk = {
439 .name = "mmc_bus",
440 .id = 2,
441 .ctrlbit = (1 << 26),
442 .enable = s5p64x0_sclk_ctrl,
443 },
444 .sources = &clkset_group1,
445 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
446 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
447 }, {
448 .clk = {
449 .name = "uclk1",
450 .id = -1,
451 .ctrlbit = (1 << 5),
452 .enable = s5p64x0_sclk_ctrl,
453 },
454 .sources = &clkset_uart,
455 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
456 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
457 }, {
458 .clk = {
459 .name = "sclk_spi",
460 .id = 0,
461 .ctrlbit = (1 << 20),
462 .enable = s5p64x0_sclk_ctrl,
463 },
464 .sources = &clkset_group1,
465 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
466 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
467 }, {
468 .clk = {
469 .name = "sclk_spi",
470 .id = 1,
471 .ctrlbit = (1 << 21),
472 .enable = s5p64x0_sclk_ctrl,
473 },
474 .sources = &clkset_group1,
475 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
476 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
477 }, {
478 .clk = {
479 .name = "sclk_post",
480 .id = -1,
481 .ctrlbit = (1 << 10),
482 .enable = s5p64x0_sclk_ctrl,
483 },
484 .sources = &clkset_group1,
485 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 26, .size = 2 },
486 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 12, .size = 4 },
487 }, {
488 .clk = {
489 .name = "sclk_dispcon",
490 .id = -1,
491 .ctrlbit = (1 << 1),
492 .enable = s5p64x0_sclk1_ctrl,
493 },
494 .sources = &clkset_group1,
495 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 4, .size = 2 },
496 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 0, .size = 4 },
497 }, {
498 .clk = {
499 .name = "sclk_fimgvg",
500 .id = -1,
501 .ctrlbit = (1 << 2),
502 .enable = s5p64x0_sclk1_ctrl,
503 },
504 .sources = &clkset_group1,
505 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 8, .size = 2 },
506 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 4, .size = 4 },
507 }, {
508 .clk = {
509 .name = "sclk_audio2",
510 .id = -1,
511 .ctrlbit = (1 << 11),
512 .enable = s5p64x0_sclk_ctrl,
513 },
514 .sources = &clkset_audio,
515 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 0, .size = 3 },
516 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 24, .size = 4 },
517 },
518};
519
520/* Clock initialization code */
521static struct clksrc_clk *sysclks[] = {
522 &clk_mout_apll,
523 &clk_mout_epll,
524 &clk_mout_mpll,
525 &clk_dout_mpll,
526 &clk_armclk,
527 &clk_hclk,
528 &clk_pclk,
529 &clk_hclk_low,
530 &clk_pclk_low,
531};
532
533void __init_or_cpufreq s5p6440_setup_clocks(void)
534{
535 struct clk *xtal_clk;
536
537 unsigned long xtal;
538 unsigned long fclk;
539 unsigned long hclk;
540 unsigned long hclk_low;
541 unsigned long pclk;
542 unsigned long pclk_low;
543
544 unsigned long apll;
545 unsigned long mpll;
546 unsigned long epll;
547 unsigned int ptr;
548
549 /* Set S5P6440 functions for clk_fout_epll */
550
551 clk_fout_epll.enable = s5p64x0_epll_enable;
552 clk_fout_epll.ops = &s5p6440_epll_ops;
553
554 clk_48m.enable = s5p64x0_clk48m_ctrl;
555
556 xtal_clk = clk_get(NULL, "ext_xtal");
557 BUG_ON(IS_ERR(xtal_clk));
558
559 xtal = clk_get_rate(xtal_clk);
560 clk_put(xtal_clk);
561
562 apll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_APLL_CON), pll_4502);
563 mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_MPLL_CON), pll_4502);
564 epll = s5p_get_pll90xx(xtal, __raw_readl(S5P64X0_EPLL_CON),
565 __raw_readl(S5P64X0_EPLL_CON_K));
566
567 clk_fout_apll.rate = apll;
568 clk_fout_mpll.rate = mpll;
569 clk_fout_epll.rate = epll;
570
571 printk(KERN_INFO "S5P6440: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
572 " E=%ld.%ldMHz\n",
573 print_mhz(apll), print_mhz(mpll), print_mhz(epll));
574
575 fclk = clk_get_rate(&clk_armclk.clk);
576 hclk = clk_get_rate(&clk_hclk.clk);
577 pclk = clk_get_rate(&clk_pclk.clk);
578 hclk_low = clk_get_rate(&clk_hclk_low.clk);
579 pclk_low = clk_get_rate(&clk_pclk_low.clk);
580
581 printk(KERN_INFO "S5P6440: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
582 " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
583 print_mhz(hclk), print_mhz(hclk_low),
584 print_mhz(pclk), print_mhz(pclk_low));
585
586 clk_f.rate = fclk;
587 clk_h.rate = hclk;
588 clk_p.rate = pclk;
589
590 for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
591 s3c_set_clksrc(&clksrcs[ptr], true);
592}
593
594static struct clk *clks[] __initdata = {
595 &clk_ext,
596 &clk_iis_cd_v40,
597 &clk_pcm_cd,
598};
599
600void __init s5p6440_register_clocks(void)
601{
602 struct clk *clkp;
603 int ret;
604 int ptr;
605
606 s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
607
608 for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
609 s3c_register_clksrc(sysclks[ptr], 1);
610
611 s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
612 s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
613
614 clkp = init_clocks_disable;
615 for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
616
617 ret = s3c24xx_register_clock(clkp);
618 if (ret < 0) {
619 printk(KERN_ERR "Failed to register clock %s (%d)\n",
620 clkp->name, ret);
621 }
622 (clkp->enable)(clkp, 0);
623 }
624
625 s3c_pwmclk_init();
626}
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6450.c b/arch/arm/mach-s5p64x0/clock-s5p6450.c
new file mode 100644
index 000000000000..f9afb05b217c
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/clock-s5p6450.c
@@ -0,0 +1,655 @@
1/* linux/arch/arm/mach-s5p64x0/clock-s5p6450.c
2 *
3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * S5P6450 - Clock support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/list.h>
17#include <linux/errno.h>
18#include <linux/err.h>
19#include <linux/clk.h>
20#include <linux/sysdev.h>
21#include <linux/io.h>
22
23#include <mach/hardware.h>
24#include <mach/map.h>
25#include <mach/regs-clock.h>
26#include <mach/s5p64x0-clock.h>
27
28#include <plat/cpu-freq.h>
29#include <plat/clock.h>
30#include <plat/cpu.h>
31#include <plat/pll.h>
32#include <plat/s5p-clock.h>
33#include <plat/clock-clksrc.h>
34#include <plat/s5p6450.h>
35
36static struct clksrc_clk clk_mout_dpll = {
37 .clk = {
38 .name = "mout_dpll",
39 .id = -1,
40 },
41 .sources = &clk_src_dpll,
42 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 5, .size = 1 },
43};
44
45static u32 epll_div[][5] = {
46 { 133000000, 27307, 55, 2, 2 },
47 { 100000000, 43691, 41, 2, 2 },
48 { 480000000, 0, 80, 2, 0 },
49};
50
51static int s5p6450_epll_set_rate(struct clk *clk, unsigned long rate)
52{
53 unsigned int epll_con, epll_con_k;
54 unsigned int i;
55
56 if (clk->rate == rate) /* Return if nothing changed */
57 return 0;
58
59 epll_con = __raw_readl(S5P64X0_EPLL_CON);
60 epll_con_k = __raw_readl(S5P64X0_EPLL_CON_K);
61
62 epll_con_k &= ~(PLL90XX_KDIV_MASK);
63 epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
64
65 for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
66 if (epll_div[i][0] == rate) {
67 epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
68 epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
69 (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
70 (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
71 break;
72 }
73 }
74
75 if (i == ARRAY_SIZE(epll_div)) {
76 printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
77 return -EINVAL;
78 }
79
80 __raw_writel(epll_con, S5P64X0_EPLL_CON);
81 __raw_writel(epll_con_k, S5P64X0_EPLL_CON_K);
82
83 clk->rate = rate;
84
85 return 0;
86}
87
88static struct clk_ops s5p6450_epll_ops = {
89 .get_rate = s5p64x0_epll_get_rate,
90 .set_rate = s5p6450_epll_set_rate,
91};
92
93static struct clksrc_clk clk_dout_epll = {
94 .clk = {
95 .name = "dout_epll",
96 .id = -1,
97 .parent = &clk_mout_epll.clk,
98 },
99 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 24, .size = 4 },
100};
101
102static struct clksrc_clk clk_mout_hclk_sel = {
103 .clk = {
104 .name = "mout_hclk_sel",
105 .id = -1,
106 },
107 .sources = &clkset_hclk_low,
108 .reg_src = { .reg = S5P64X0_OTHERS, .shift = 15, .size = 1 },
109};
110
111static struct clk *clkset_hclk_list[] = {
112 &clk_mout_hclk_sel.clk,
113 &clk_armclk.clk,
114};
115
116static struct clksrc_sources clkset_hclk = {
117 .sources = clkset_hclk_list,
118 .nr_sources = ARRAY_SIZE(clkset_hclk_list),
119};
120
121static struct clksrc_clk clk_hclk = {
122 .clk = {
123 .name = "clk_hclk",
124 .id = -1,
125 },
126 .sources = &clkset_hclk,
127 .reg_src = { .reg = S5P64X0_OTHERS, .shift = 14, .size = 1 },
128 .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 8, .size = 4 },
129};
130
131static struct clksrc_clk clk_pclk = {
132 .clk = {
133 .name = "clk_pclk",
134 .id = -1,
135 .parent = &clk_hclk.clk,
136 },
137 .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 12, .size = 4 },
138};
139static struct clksrc_clk clk_dout_pwm_ratio0 = {
140 .clk = {
141 .name = "clk_dout_pwm_ratio0",
142 .id = -1,
143 .parent = &clk_mout_hclk_sel.clk,
144 },
145 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 16, .size = 4 },
146};
147
148static struct clksrc_clk clk_pclk_to_wdt_pwm = {
149 .clk = {
150 .name = "clk_pclk_to_wdt_pwm",
151 .id = -1,
152 .parent = &clk_dout_pwm_ratio0.clk,
153 },
154 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 20, .size = 4 },
155};
156
157static struct clksrc_clk clk_hclk_low = {
158 .clk = {
159 .name = "clk_hclk_low",
160 .id = -1,
161 },
162 .sources = &clkset_hclk_low,
163 .reg_src = { .reg = S5P64X0_OTHERS, .shift = 6, .size = 1 },
164 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 8, .size = 4 },
165};
166
167static struct clksrc_clk clk_pclk_low = {
168 .clk = {
169 .name = "clk_pclk_low",
170 .id = -1,
171 .parent = &clk_hclk_low.clk,
172 },
173 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 12, .size = 4 },
174};
175
176/*
177 * The following clocks will be disabled during clock initialization. It is
178 * recommended to keep the following clocks disabled until the driver requests
179 * for enabling the clock.
180 */
181static struct clk init_clocks_disable[] = {
182 {
183 .name = "usbhost",
184 .id = -1,
185 .parent = &clk_hclk_low.clk,
186 .enable = s5p64x0_hclk0_ctrl,
187 .ctrlbit = (1 << 3),
188 }, {
189 .name = "hsmmc",
190 .id = 0,
191 .parent = &clk_hclk_low.clk,
192 .enable = s5p64x0_hclk0_ctrl,
193 .ctrlbit = (1 << 17),
194 }, {
195 .name = "hsmmc",
196 .id = 1,
197 .parent = &clk_hclk_low.clk,
198 .enable = s5p64x0_hclk0_ctrl,
199 .ctrlbit = (1 << 18),
200 }, {
201 .name = "hsmmc",
202 .id = 2,
203 .parent = &clk_hclk_low.clk,
204 .enable = s5p64x0_hclk0_ctrl,
205 .ctrlbit = (1 << 19),
206 }, {
207 .name = "usbotg",
208 .id = -1,
209 .parent = &clk_hclk_low.clk,
210 .enable = s5p64x0_hclk0_ctrl,
211 .ctrlbit = (1 << 20),
212 }, {
213 .name = "lcd",
214 .id = -1,
215 .parent = &clk_h,
216 .enable = s5p64x0_hclk1_ctrl,
217 .ctrlbit = (1 << 1),
218 }, {
219 .name = "watchdog",
220 .id = -1,
221 .parent = &clk_pclk_low.clk,
222 .enable = s5p64x0_pclk_ctrl,
223 .ctrlbit = (1 << 5),
224 }, {
225 .name = "adc",
226 .id = -1,
227 .parent = &clk_pclk_low.clk,
228 .enable = s5p64x0_pclk_ctrl,
229 .ctrlbit = (1 << 12),
230 }, {
231 .name = "i2c",
232 .id = 0,
233 .parent = &clk_pclk_low.clk,
234 .enable = s5p64x0_pclk_ctrl,
235 .ctrlbit = (1 << 17),
236 }, {
237 .name = "spi",
238 .id = 0,
239 .parent = &clk_pclk_low.clk,
240 .enable = s5p64x0_pclk_ctrl,
241 .ctrlbit = (1 << 21),
242 }, {
243 .name = "spi",
244 .id = 1,
245 .parent = &clk_pclk_low.clk,
246 .enable = s5p64x0_pclk_ctrl,
247 .ctrlbit = (1 << 22),
248 }, {
249 .name = "iis",
250 .id = -1,
251 .parent = &clk_pclk_low.clk,
252 .enable = s5p64x0_pclk_ctrl,
253 .ctrlbit = (1 << 26),
254 }, {
255 .name = "i2c",
256 .id = 1,
257 .parent = &clk_pclk_low.clk,
258 .enable = s5p64x0_pclk_ctrl,
259 .ctrlbit = (1 << 27),
260 }, {
261 .name = "dmc0",
262 .id = -1,
263 .parent = &clk_pclk.clk,
264 .enable = s5p64x0_pclk_ctrl,
265 .ctrlbit = (1 << 30),
266 }
267};
268
269/*
270 * The following clocks will be enabled during clock initialization.
271 */
272static struct clk init_clocks[] = {
273 {
274 .name = "intc",
275 .id = -1,
276 .parent = &clk_hclk.clk,
277 .enable = s5p64x0_hclk0_ctrl,
278 .ctrlbit = (1 << 1),
279 }, {
280 .name = "mem",
281 .id = -1,
282 .parent = &clk_hclk.clk,
283 .enable = s5p64x0_hclk0_ctrl,
284 .ctrlbit = (1 << 21),
285 }, {
286 .name = "dma",
287 .id = -1,
288 .parent = &clk_hclk_low.clk,
289 .enable = s5p64x0_hclk0_ctrl,
290 .ctrlbit = (1 << 12),
291 }, {
292 .name = "uart",
293 .id = 0,
294 .parent = &clk_pclk_low.clk,
295 .enable = s5p64x0_pclk_ctrl,
296 .ctrlbit = (1 << 1),
297 }, {
298 .name = "uart",
299 .id = 1,
300 .parent = &clk_pclk_low.clk,
301 .enable = s5p64x0_pclk_ctrl,
302 .ctrlbit = (1 << 2),
303 }, {
304 .name = "uart",
305 .id = 2,
306 .parent = &clk_pclk_low.clk,
307 .enable = s5p64x0_pclk_ctrl,
308 .ctrlbit = (1 << 3),
309 }, {
310 .name = "uart",
311 .id = 3,
312 .parent = &clk_pclk_low.clk,
313 .enable = s5p64x0_pclk_ctrl,
314 .ctrlbit = (1 << 4),
315 }, {
316 .name = "timers",
317 .id = -1,
318 .parent = &clk_pclk_to_wdt_pwm.clk,
319 .enable = s5p64x0_pclk_ctrl,
320 .ctrlbit = (1 << 7),
321 }, {
322 .name = "gpio",
323 .id = -1,
324 .parent = &clk_pclk_low.clk,
325 .enable = s5p64x0_pclk_ctrl,
326 .ctrlbit = (1 << 18),
327 },
328};
329
330static struct clk *clkset_uart_list[] = {
331 &clk_dout_epll.clk,
332 &clk_dout_mpll.clk,
333};
334
335static struct clksrc_sources clkset_uart = {
336 .sources = clkset_uart_list,
337 .nr_sources = ARRAY_SIZE(clkset_uart_list),
338};
339
340static struct clk *clkset_mali_list[] = {
341 &clk_mout_epll.clk,
342 &clk_mout_apll.clk,
343 &clk_mout_mpll.clk,
344};
345
346static struct clksrc_sources clkset_mali = {
347 .sources = clkset_mali_list,
348 .nr_sources = ARRAY_SIZE(clkset_mali_list),
349};
350
351static struct clk *clkset_group2_list[] = {
352 &clk_dout_epll.clk,
353 &clk_dout_mpll.clk,
354 &clk_ext_xtal_mux,
355};
356
357static struct clksrc_sources clkset_group2 = {
358 .sources = clkset_group2_list,
359 .nr_sources = ARRAY_SIZE(clkset_group2_list),
360};
361
362static struct clk *clkset_dispcon_list[] = {
363 &clk_dout_epll.clk,
364 &clk_dout_mpll.clk,
365 &clk_ext_xtal_mux,
366 &clk_mout_dpll.clk,
367};
368
369static struct clksrc_sources clkset_dispcon = {
370 .sources = clkset_dispcon_list,
371 .nr_sources = ARRAY_SIZE(clkset_dispcon_list),
372};
373
374static struct clk *clkset_hsmmc44_list[] = {
375 &clk_dout_epll.clk,
376 &clk_dout_mpll.clk,
377 &clk_ext_xtal_mux,
378 &s5p_clk_27m,
379 &clk_48m,
380};
381
382static struct clksrc_sources clkset_hsmmc44 = {
383 .sources = clkset_hsmmc44_list,
384 .nr_sources = ARRAY_SIZE(clkset_hsmmc44_list),
385};
386
387static struct clk *clkset_sclk_audio0_list[] = {
388 [0] = &clk_dout_epll.clk,
389 [1] = &clk_dout_mpll.clk,
390 [2] = &clk_ext_xtal_mux,
391 [3] = NULL,
392 [4] = NULL,
393};
394
395static struct clksrc_sources clkset_sclk_audio0 = {
396 .sources = clkset_sclk_audio0_list,
397 .nr_sources = ARRAY_SIZE(clkset_sclk_audio0_list),
398};
399
400static struct clksrc_clk clk_sclk_audio0 = {
401 .clk = {
402 .name = "audio-bus",
403 .id = -1,
404 .enable = s5p64x0_sclk_ctrl,
405 .ctrlbit = (1 << 8),
406 .parent = &clk_dout_epll.clk,
407 },
408 .sources = &clkset_sclk_audio0,
409 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 10, .size = 3 },
410 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 8, .size = 4 },
411};
412
413static struct clksrc_clk clksrcs[] = {
414 {
415 .clk = {
416 .name = "sclk_mmc",
417 .id = 0,
418 .ctrlbit = (1 << 24),
419 .enable = s5p64x0_sclk_ctrl,
420 },
421 .sources = &clkset_group2,
422 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
423 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
424 }, {
425 .clk = {
426 .name = "sclk_mmc",
427 .id = 1,
428 .ctrlbit = (1 << 25),
429 .enable = s5p64x0_sclk_ctrl,
430 },
431 .sources = &clkset_group2,
432 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
433 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
434 }, {
435 .clk = {
436 .name = "sclk_mmc",
437 .id = 2,
438 .ctrlbit = (1 << 26),
439 .enable = s5p64x0_sclk_ctrl,
440 },
441 .sources = &clkset_group2,
442 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
443 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
444 }, {
445 .clk = {
446 .name = "uclk1",
447 .id = -1,
448 .ctrlbit = (1 << 5),
449 .enable = s5p64x0_sclk_ctrl,
450 },
451 .sources = &clkset_uart,
452 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
453 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
454 }, {
455 .clk = {
456 .name = "sclk_spi",
457 .id = 0,
458 .ctrlbit = (1 << 20),
459 .enable = s5p64x0_sclk_ctrl,
460 },
461 .sources = &clkset_group2,
462 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
463 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
464 }, {
465 .clk = {
466 .name = "sclk_spi",
467 .id = 1,
468 .ctrlbit = (1 << 21),
469 .enable = s5p64x0_sclk_ctrl,
470 },
471 .sources = &clkset_group2,
472 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
473 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
474 }, {
475 .clk = {
476 .name = "sclk_fimc",
477 .id = -1,
478 .ctrlbit = (1 << 10),
479 .enable = s5p64x0_sclk_ctrl,
480 },
481 .sources = &clkset_group2,
482 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 26, .size = 2 },
483 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 12, .size = 4 },
484 }, {
485 .clk = {
486 .name = "aclk_mali",
487 .id = -1,
488 .ctrlbit = (1 << 2),
489 .enable = s5p64x0_sclk1_ctrl,
490 },
491 .sources = &clkset_mali,
492 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 8, .size = 2 },
493 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 4, .size = 4 },
494 }, {
495 .clk = {
496 .name = "sclk_2d",
497 .id = -1,
498 .ctrlbit = (1 << 12),
499 .enable = s5p64x0_sclk_ctrl,
500 },
501 .sources = &clkset_mali,
502 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 30, .size = 2 },
503 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 20, .size = 4 },
504 }, {
505 .clk = {
506 .name = "sclk_usi",
507 .id = -1,
508 .ctrlbit = (1 << 7),
509 .enable = s5p64x0_sclk_ctrl,
510 },
511 .sources = &clkset_group2,
512 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 10, .size = 2 },
513 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 16, .size = 4 },
514 }, {
515 .clk = {
516 .name = "sclk_camif",
517 .id = -1,
518 .ctrlbit = (1 << 6),
519 .enable = s5p64x0_sclk_ctrl,
520 },
521 .sources = &clkset_group2,
522 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 28, .size = 2 },
523 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 20, .size = 4 },
524 }, {
525 .clk = {
526 .name = "sclk_dispcon",
527 .id = -1,
528 .ctrlbit = (1 << 1),
529 .enable = s5p64x0_sclk1_ctrl,
530 },
531 .sources = &clkset_dispcon,
532 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 4, .size = 2 },
533 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 0, .size = 4 },
534 }, {
535 .clk = {
536 .name = "sclk_hsmmc44",
537 .id = -1,
538 .ctrlbit = (1 << 30),
539 .enable = s5p64x0_sclk_ctrl,
540 },
541 .sources = &clkset_hsmmc44,
542 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 6, .size = 3 },
543 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 28, .size = 4 },
544 },
545};
546
547/* Clock initialization code */
548static struct clksrc_clk *sysclks[] = {
549 &clk_mout_apll,
550 &clk_mout_epll,
551 &clk_dout_epll,
552 &clk_mout_mpll,
553 &clk_dout_mpll,
554 &clk_armclk,
555 &clk_mout_hclk_sel,
556 &clk_dout_pwm_ratio0,
557 &clk_pclk_to_wdt_pwm,
558 &clk_hclk,
559 &clk_pclk,
560 &clk_hclk_low,
561 &clk_pclk_low,
562 &clk_sclk_audio0,
563};
564
565void __init_or_cpufreq s5p6450_setup_clocks(void)
566{
567 struct clk *xtal_clk;
568
569 unsigned long xtal;
570 unsigned long fclk;
571 unsigned long hclk;
572 unsigned long hclk_low;
573 unsigned long pclk;
574 unsigned long pclk_low;
575
576 unsigned long apll;
577 unsigned long mpll;
578 unsigned long epll;
579 unsigned long dpll;
580 unsigned int ptr;
581
582 /* Set S5P6450 functions for clk_fout_epll */
583
584 clk_fout_epll.enable = s5p64x0_epll_enable;
585 clk_fout_epll.ops = &s5p6450_epll_ops;
586
587 clk_48m.enable = s5p64x0_clk48m_ctrl;
588
589 xtal_clk = clk_get(NULL, "ext_xtal");
590 BUG_ON(IS_ERR(xtal_clk));
591
592 xtal = clk_get_rate(xtal_clk);
593 clk_put(xtal_clk);
594
595 apll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_APLL_CON), pll_4502);
596 mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_MPLL_CON), pll_4502);
597 epll = s5p_get_pll90xx(xtal, __raw_readl(S5P64X0_EPLL_CON),
598 __raw_readl(S5P64X0_EPLL_CON_K));
599 dpll = s5p_get_pll46xx(xtal, __raw_readl(S5P6450_DPLL_CON),
600 __raw_readl(S5P6450_DPLL_CON_K), pll_4650c);
601
602 clk_fout_apll.rate = apll;
603 clk_fout_mpll.rate = mpll;
604 clk_fout_epll.rate = epll;
605 clk_fout_dpll.rate = dpll;
606
607 printk(KERN_INFO "S5P6450: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
608 " E=%ld.%ldMHz, D=%ld.%ldMHz\n",
609 print_mhz(apll), print_mhz(mpll), print_mhz(epll),
610 print_mhz(dpll));
611
612 fclk = clk_get_rate(&clk_armclk.clk);
613 hclk = clk_get_rate(&clk_hclk.clk);
614 pclk = clk_get_rate(&clk_pclk.clk);
615 hclk_low = clk_get_rate(&clk_hclk_low.clk);
616 pclk_low = clk_get_rate(&clk_pclk_low.clk);
617
618 printk(KERN_INFO "S5P6450: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
619 " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
620 print_mhz(hclk), print_mhz(hclk_low),
621 print_mhz(pclk), print_mhz(pclk_low));
622
623 clk_f.rate = fclk;
624 clk_h.rate = hclk;
625 clk_p.rate = pclk;
626
627 for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
628 s3c_set_clksrc(&clksrcs[ptr], true);
629}
630
631void __init s5p6450_register_clocks(void)
632{
633 struct clk *clkp;
634 int ret;
635 int ptr;
636
637 for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
638 s3c_register_clksrc(sysclks[ptr], 1);
639
640 s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
641 s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
642
643 clkp = init_clocks_disable;
644 for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
645
646 ret = s3c24xx_register_clock(clkp);
647 if (ret < 0) {
648 printk(KERN_ERR "Failed to register clock %s (%d)\n",
649 clkp->name, ret);
650 }
651 (clkp->enable)(clkp, 0);
652 }
653
654 s3c_pwmclk_init();
655}
diff --git a/arch/arm/mach-s5p64x0/clock.c b/arch/arm/mach-s5p64x0/clock.c
new file mode 100644
index 000000000000..523ba8039ac2
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/clock.c
@@ -0,0 +1,253 @@
1/* linux/arch/arm/mach-s5p64x0/clock.c
2 *
3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * S5P64X0 - Clock support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/list.h>
17#include <linux/errno.h>
18#include <linux/err.h>
19#include <linux/clk.h>
20#include <linux/sysdev.h>
21#include <linux/io.h>
22
23#include <mach/hardware.h>
24#include <mach/map.h>
25#include <mach/regs-clock.h>
26
27#include <plat/cpu-freq.h>
28#include <plat/clock.h>
29#include <plat/cpu.h>
30#include <plat/pll.h>
31#include <plat/s5p-clock.h>
32#include <plat/clock-clksrc.h>
33#include <plat/s5p6440.h>
34#include <plat/s5p6450.h>
35
36struct clksrc_clk clk_mout_apll = {
37 .clk = {
38 .name = "mout_apll",
39 .id = -1,
40 },
41 .sources = &clk_src_apll,
42 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 0, .size = 1 },
43};
44
45struct clksrc_clk clk_mout_mpll = {
46 .clk = {
47 .name = "mout_mpll",
48 .id = -1,
49 },
50 .sources = &clk_src_mpll,
51 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 1, .size = 1 },
52};
53
54struct clksrc_clk clk_mout_epll = {
55 .clk = {
56 .name = "mout_epll",
57 .id = -1,
58 },
59 .sources = &clk_src_epll,
60 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 2, .size = 1 },
61};
62
63enum perf_level {
64 L0 = 532*1000,
65 L1 = 266*1000,
66 L2 = 133*1000,
67};
68
69static const u32 clock_table[][3] = {
70 /*{ARM_CLK, DIVarm, DIVhclk}*/
71 {L0 * 1000, (0 << ARM_DIV_RATIO_SHIFT), (3 << S5P64X0_CLKDIV0_HCLK_SHIFT)},
72 {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P64X0_CLKDIV0_HCLK_SHIFT)},
73 {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P64X0_CLKDIV0_HCLK_SHIFT)},
74};
75
76int s5p64x0_epll_enable(struct clk *clk, int enable)
77{
78 unsigned int ctrlbit = clk->ctrlbit;
79 unsigned int epll_con = __raw_readl(S5P64X0_EPLL_CON) & ~ctrlbit;
80
81 if (enable)
82 __raw_writel(epll_con | ctrlbit, S5P64X0_EPLL_CON);
83 else
84 __raw_writel(epll_con, S5P64X0_EPLL_CON);
85
86 return 0;
87}
88
89unsigned long s5p64x0_epll_get_rate(struct clk *clk)
90{
91 return clk->rate;
92}
93
94unsigned long s5p64x0_armclk_get_rate(struct clk *clk)
95{
96 unsigned long rate = clk_get_rate(clk->parent);
97 u32 clkdiv;
98
99 /* divisor mask starts at bit0, so no need to shift */
100 clkdiv = __raw_readl(ARM_CLK_DIV) & ARM_DIV_MASK;
101
102 return rate / (clkdiv + 1);
103}
104
105unsigned long s5p64x0_armclk_round_rate(struct clk *clk, unsigned long rate)
106{
107 u32 iter;
108
109 for (iter = 1 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
110 if (rate > clock_table[iter][0])
111 return clock_table[iter-1][0];
112 }
113
114 return clock_table[ARRAY_SIZE(clock_table) - 1][0];
115}
116
117int s5p64x0_armclk_set_rate(struct clk *clk, unsigned long rate)
118{
119 u32 round_tmp;
120 u32 iter;
121 u32 clk_div0_tmp;
122 u32 cur_rate = clk->ops->get_rate(clk);
123 unsigned long flags;
124
125 round_tmp = clk->ops->round_rate(clk, rate);
126 if (round_tmp == cur_rate)
127 return 0;
128
129
130 for (iter = 0 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
131 if (round_tmp == clock_table[iter][0])
132 break;
133 }
134
135 if (iter >= ARRAY_SIZE(clock_table))
136 iter = ARRAY_SIZE(clock_table) - 1;
137
138 local_irq_save(flags);
139 if (cur_rate > round_tmp) {
140 /* Frequency Down */
141 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
142 clk_div0_tmp |= clock_table[iter][1];
143 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
144
145 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
146 ~(S5P64X0_CLKDIV0_HCLK_MASK);
147 clk_div0_tmp |= clock_table[iter][2];
148 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
149
150
151 } else {
152 /* Frequency Up */
153 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
154 ~(S5P64X0_CLKDIV0_HCLK_MASK);
155 clk_div0_tmp |= clock_table[iter][2];
156 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
157
158 clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
159 clk_div0_tmp |= clock_table[iter][1];
160 __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
161 }
162 local_irq_restore(flags);
163
164 clk->rate = clock_table[iter][0];
165
166 return 0;
167}
168
169struct clk_ops s5p64x0_clkarm_ops = {
170 .get_rate = s5p64x0_armclk_get_rate,
171 .set_rate = s5p64x0_armclk_set_rate,
172 .round_rate = s5p64x0_armclk_round_rate,
173};
174
175struct clksrc_clk clk_armclk = {
176 .clk = {
177 .name = "armclk",
178 .id = 1,
179 .parent = &clk_mout_apll.clk,
180 .ops = &s5p64x0_clkarm_ops,
181 },
182 .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 0, .size = 4 },
183};
184
185struct clksrc_clk clk_dout_mpll = {
186 .clk = {
187 .name = "dout_mpll",
188 .id = -1,
189 .parent = &clk_mout_mpll.clk,
190 },
191 .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 4, .size = 1 },
192};
193
194struct clk *clkset_hclk_low_list[] = {
195 &clk_mout_apll.clk,
196 &clk_mout_mpll.clk,
197};
198
199struct clksrc_sources clkset_hclk_low = {
200 .sources = clkset_hclk_low_list,
201 .nr_sources = ARRAY_SIZE(clkset_hclk_low_list),
202};
203
204int s5p64x0_pclk_ctrl(struct clk *clk, int enable)
205{
206 return s5p_gatectrl(S5P64X0_CLK_GATE_PCLK, clk, enable);
207}
208
209int s5p64x0_hclk0_ctrl(struct clk *clk, int enable)
210{
211 return s5p_gatectrl(S5P64X0_CLK_GATE_HCLK0, clk, enable);
212}
213
214int s5p64x0_hclk1_ctrl(struct clk *clk, int enable)
215{
216 return s5p_gatectrl(S5P64X0_CLK_GATE_HCLK1, clk, enable);
217}
218
219int s5p64x0_sclk_ctrl(struct clk *clk, int enable)
220{
221 return s5p_gatectrl(S5P64X0_CLK_GATE_SCLK0, clk, enable);
222}
223
224int s5p64x0_sclk1_ctrl(struct clk *clk, int enable)
225{
226 return s5p_gatectrl(S5P64X0_CLK_GATE_SCLK1, clk, enable);
227}
228
229int s5p64x0_mem_ctrl(struct clk *clk, int enable)
230{
231 return s5p_gatectrl(S5P64X0_CLK_GATE_MEM0, clk, enable);
232}
233
234int s5p64x0_clk48m_ctrl(struct clk *clk, int enable)
235{
236 unsigned long flags;
237 u32 val;
238
239 /* can't rely on clock lock, this register has other usages */
240 local_irq_save(flags);
241
242 val = __raw_readl(S5P64X0_OTHERS);
243 if (enable)
244 val |= S5P64X0_OTHERS_USB_SIG_MASK;
245 else
246 val &= ~S5P64X0_OTHERS_USB_SIG_MASK;
247
248 __raw_writel(val, S5P64X0_OTHERS);
249
250 local_irq_restore(flags);
251
252 return 0;
253}
diff --git a/arch/arm/mach-s5p64x0/include/mach/regs-clock.h b/arch/arm/mach-s5p64x0/include/mach/regs-clock.h
new file mode 100644
index 000000000000..58e1bc813804
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/regs-clock.h
@@ -0,0 +1,63 @@
1/* linux/arch/arm/mach-s5p64x0/include/mach/regs-clock.h
2 *
3 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * S5P64X0 - Clock register definitions
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_REGS_CLOCK_H
14#define __ASM_ARCH_REGS_CLOCK_H __FILE__
15
16#include <mach/map.h>
17
18#define S5P_CLKREG(x) (S3C_VA_SYS + (x))
19
20#define S5P64X0_APLL_CON S5P_CLKREG(0x0C)
21#define S5P64X0_MPLL_CON S5P_CLKREG(0x10)
22#define S5P64X0_EPLL_CON S5P_CLKREG(0x14)
23#define S5P64X0_EPLL_CON_K S5P_CLKREG(0x18)
24
25#define S5P64X0_CLK_SRC0 S5P_CLKREG(0x1C)
26
27#define S5P64X0_CLK_DIV0 S5P_CLKREG(0x20)
28#define S5P64X0_CLK_DIV1 S5P_CLKREG(0x24)
29#define S5P64X0_CLK_DIV2 S5P_CLKREG(0x28)
30
31#define S5P64X0_CLK_GATE_HCLK0 S5P_CLKREG(0x30)
32#define S5P64X0_CLK_GATE_PCLK S5P_CLKREG(0x34)
33#define S5P64X0_CLK_GATE_SCLK0 S5P_CLKREG(0x38)
34#define S5P64X0_CLK_GATE_MEM0 S5P_CLKREG(0x3C)
35
36#define S5P64X0_CLK_DIV3 S5P_CLKREG(0x40)
37
38#define S5P64X0_CLK_GATE_HCLK1 S5P_CLKREG(0x44)
39#define S5P64X0_CLK_GATE_SCLK1 S5P_CLKREG(0x48)
40
41#define S5P6450_DPLL_CON S5P_CLKREG(0x50)
42#define S5P6450_DPLL_CON_K S5P_CLKREG(0x54)
43
44#define S5P64X0_CLK_SRC1 S5P_CLKREG(0x10C)
45
46#define S5P64X0_SYS_ID S5P_CLKREG(0x118)
47#define S5P64X0_SYS_OTHERS S5P_CLKREG(0x11C)
48
49#define S5P64X0_PWR_CFG S5P_CLKREG(0x804)
50#define S5P64X0_OTHERS S5P_CLKREG(0x900)
51
52#define S5P64X0_CLKDIV0_HCLK_SHIFT (8)
53#define S5P64X0_CLKDIV0_HCLK_MASK (0xF << S5P64X0_CLKDIV0_HCLK_SHIFT)
54
55#define S5P64X0_OTHERS_USB_SIG_MASK (1 << 16)
56
57/* Compatibility defines */
58
59#define ARM_CLK_DIV S5P64X0_CLK_DIV0
60#define ARM_DIV_RATIO_SHIFT 0
61#define ARM_DIV_MASK (0xF << ARM_DIV_RATIO_SHIFT)
62
63#endif /* __ASM_ARCH_REGS_CLOCK_H */
diff --git a/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h b/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h
new file mode 100644
index 000000000000..ff85b4b6e8d9
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h
@@ -0,0 +1,46 @@
1/* linux/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h
2 *
3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * Header file for s5p64x0 clock support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_CLOCK_H
14#define __ASM_ARCH_CLOCK_H __FILE__
15
16#include <linux/clk.h>
17
18extern struct clksrc_clk clk_mout_apll;
19extern struct clksrc_clk clk_mout_mpll;
20extern struct clksrc_clk clk_mout_epll;
21
22extern int s5p64x0_epll_enable(struct clk *clk, int enable);
23extern unsigned long s5p64x0_epll_get_rate(struct clk *clk);
24
25extern unsigned long s5p64x0_armclk_get_rate(struct clk *clk);
26extern unsigned long s5p64x0_armclk_round_rate(struct clk *clk, unsigned long rate);
27extern int s5p64x0_armclk_set_rate(struct clk *clk, unsigned long rate);
28
29extern struct clk_ops s5p64x0_clkarm_ops;
30
31extern struct clksrc_clk clk_armclk;
32extern struct clksrc_clk clk_dout_mpll;
33
34extern struct clk *clkset_hclk_low_list[];
35extern struct clksrc_sources clkset_hclk_low;
36
37extern int s5p64x0_pclk_ctrl(struct clk *clk, int enable);
38extern int s5p64x0_hclk0_ctrl(struct clk *clk, int enable);
39extern int s5p64x0_hclk1_ctrl(struct clk *clk, int enable);
40extern int s5p64x0_sclk_ctrl(struct clk *clk, int enable);
41extern int s5p64x0_sclk1_ctrl(struct clk *clk, int enable);
42extern int s5p64x0_mem_ctrl(struct clk *clk, int enable);
43
44extern int s5p64x0_clk48m_ctrl(struct clk *clk, int enable);
45
46#endif /* __ASM_ARCH_CLOCK_H */
diff --git a/arch/arm/plat-s5p/clock.c b/arch/arm/plat-s5p/clock.c
index b5e255265f20..8aaf4e6b60c3 100644
--- a/arch/arm/plat-s5p/clock.c
+++ b/arch/arm/plat-s5p/clock.c
@@ -74,6 +74,13 @@ struct clk clk_fout_epll = {
74 .ctrlbit = (1 << 31), 74 .ctrlbit = (1 << 31),
75}; 75};
76 76
77/* DPLL clock output */
78struct clk clk_fout_dpll = {
79 .name = "fout_dpll",
80 .id = -1,
81 .ctrlbit = (1 << 31),
82};
83
77/* VPLL clock output */ 84/* VPLL clock output */
78struct clk clk_fout_vpll = { 85struct clk clk_fout_vpll = {
79 .name = "fout_vpll", 86 .name = "fout_vpll",
@@ -122,6 +129,17 @@ struct clksrc_sources clk_src_epll = {
122 .nr_sources = ARRAY_SIZE(clk_src_epll_list), 129 .nr_sources = ARRAY_SIZE(clk_src_epll_list),
123}; 130};
124 131
132/* Possible clock sources for DPLL Mux */
133static struct clk *clk_src_dpll_list[] = {
134 [0] = &clk_fin_dpll,
135 [1] = &clk_fout_dpll,
136};
137
138struct clksrc_sources clk_src_dpll = {
139 .sources = clk_src_dpll_list,
140 .nr_sources = ARRAY_SIZE(clk_src_dpll_list),
141};
142
125struct clk clk_vpll = { 143struct clk clk_vpll = {
126 .name = "vpll", 144 .name = "vpll",
127 .id = -1, 145 .id = -1,
@@ -145,6 +163,7 @@ static struct clk *s5p_clks[] __initdata = {
145 &clk_fout_apll, 163 &clk_fout_apll,
146 &clk_fout_mpll, 164 &clk_fout_mpll,
147 &clk_fout_epll, 165 &clk_fout_epll,
166 &clk_fout_dpll,
148 &clk_fout_vpll, 167 &clk_fout_vpll,
149 &clk_arm, 168 &clk_arm,
150 &clk_vpll, 169 &clk_vpll,
diff --git a/arch/arm/plat-s5p/include/plat/pll.h b/arch/arm/plat-s5p/include/plat/pll.h
index 4e8fe08cb70d..bf28fadee7ae 100644
--- a/arch/arm/plat-s5p/include/plat/pll.h
+++ b/arch/arm/plat-s5p/include/plat/pll.h
@@ -47,6 +47,7 @@ static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con,
47} 47}
48 48
49#define PLL46XX_KDIV_MASK (0xFFFF) 49#define PLL46XX_KDIV_MASK (0xFFFF)
50#define PLL4650C_KDIV_MASK (0xFFF)
50#define PLL46XX_MDIV_MASK (0x1FF) 51#define PLL46XX_MDIV_MASK (0x1FF)
51#define PLL46XX_PDIV_MASK (0x3F) 52#define PLL46XX_PDIV_MASK (0x3F)
52#define PLL46XX_SDIV_MASK (0x7) 53#define PLL46XX_SDIV_MASK (0x7)
@@ -57,6 +58,7 @@ static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con,
57enum pll46xx_type_t { 58enum pll46xx_type_t {
58 pll_4600, 59 pll_4600,
59 pll_4650, 60 pll_4650,
61 pll_4650c,
60}; 62};
61 63
62static inline unsigned long s5p_get_pll46xx(unsigned long baseclk, 64static inline unsigned long s5p_get_pll46xx(unsigned long baseclk,
@@ -72,6 +74,11 @@ static inline unsigned long s5p_get_pll46xx(unsigned long baseclk,
72 sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK; 74 sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK;
73 kdiv = pll_con1 & PLL46XX_KDIV_MASK; 75 kdiv = pll_con1 & PLL46XX_KDIV_MASK;
74 76
77 if (pll_type == pll_4650c)
78 kdiv = pll_con1 & PLL4650C_KDIV_MASK;
79 else
80 kdiv = pll_con1 & PLL46XX_KDIV_MASK;
81
75 tmp = baseclk; 82 tmp = baseclk;
76 83
77 if (pll_type == pll_4600) { 84 if (pll_type == pll_4600) {
diff --git a/arch/arm/plat-s5p/include/plat/s5p-clock.h b/arch/arm/plat-s5p/include/plat/s5p-clock.h
index 09418b1101fe..17036c898409 100644
--- a/arch/arm/plat-s5p/include/plat/s5p-clock.h
+++ b/arch/arm/plat-s5p/include/plat/s5p-clock.h
@@ -1,7 +1,7 @@
1/* linux/arch/arm/plat-s5p/include/plat/s5p-clock.h 1/* linux/arch/arm/plat-s5p/include/plat/s5p-clock.h
2 * 2 *
3 * Copyright 2009 Samsung Electronics Co., Ltd. 3 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/ 4 * http://www.samsung.com
5 * 5 *
6 * Header file for s5p clock support 6 * Header file for s5p clock support
7 * 7 *
@@ -20,6 +20,7 @@
20#define clk_fin_apll clk_ext_xtal_mux 20#define clk_fin_apll clk_ext_xtal_mux
21#define clk_fin_mpll clk_ext_xtal_mux 21#define clk_fin_mpll clk_ext_xtal_mux
22#define clk_fin_epll clk_ext_xtal_mux 22#define clk_fin_epll clk_ext_xtal_mux
23#define clk_fin_dpll clk_ext_xtal_mux
23#define clk_fin_vpll clk_ext_xtal_mux 24#define clk_fin_vpll clk_ext_xtal_mux
24#define clk_fin_hpll clk_ext_xtal_mux 25#define clk_fin_hpll clk_ext_xtal_mux
25 26
@@ -30,6 +31,7 @@ extern struct clk s5p_clk_27m;
30extern struct clk clk_fout_apll; 31extern struct clk clk_fout_apll;
31extern struct clk clk_fout_mpll; 32extern struct clk clk_fout_mpll;
32extern struct clk clk_fout_epll; 33extern struct clk clk_fout_epll;
34extern struct clk clk_fout_dpll;
33extern struct clk clk_fout_vpll; 35extern struct clk clk_fout_vpll;
34extern struct clk clk_arm; 36extern struct clk clk_arm;
35extern struct clk clk_vpll; 37extern struct clk clk_vpll;
@@ -37,8 +39,8 @@ extern struct clk clk_vpll;
37extern struct clksrc_sources clk_src_apll; 39extern struct clksrc_sources clk_src_apll;
38extern struct clksrc_sources clk_src_mpll; 40extern struct clksrc_sources clk_src_mpll;
39extern struct clksrc_sources clk_src_epll; 41extern struct clksrc_sources clk_src_epll;
42extern struct clksrc_sources clk_src_dpll;
40 43
41extern int s5p6440_clk48m_ctrl(struct clk *clk, int enable);
42extern int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable); 44extern int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable);
43 45
44#endif /* __ASM_PLAT_S5P_CLOCK_H */ 46#endif /* __ASM_PLAT_S5P_CLOCK_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 18:29:22 -0500