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[qemu/mini2440.git] / hw / omap_clk.c
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1 /*
2 * OMAP clocks.
4 * Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org>
6 * Clocks data comes in part from arch/arm/mach-omap1/clock.h in Linux.
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "hw.h"
23 #include "omap.h"
25 struct clk {
26 const char *name;
27 const char *alias;
28 struct clk *parent;
29 struct clk *child1;
30 struct clk *sibling;
31 #define ALWAYS_ENABLED (1 << 0)
32 #define CLOCK_IN_OMAP310 (1 << 10)
33 #define CLOCK_IN_OMAP730 (1 << 11)
34 #define CLOCK_IN_OMAP1510 (1 << 12)
35 #define CLOCK_IN_OMAP16XX (1 << 13)
36 #define CLOCK_IN_OMAP242X (1 << 14)
37 #define CLOCK_IN_OMAP243X (1 << 15)
38 #define CLOCK_IN_OMAP343X (1 << 16)
39 uint32_t flags;
40 int id;
42 int running; /* Is currently ticking */
43 int enabled; /* Is enabled, regardless of its input clk */
44 unsigned long rate; /* Current rate (if .running) */
45 unsigned int divisor; /* Rate relative to input (if .enabled) */
46 unsigned int multiplier; /* Rate relative to input (if .enabled) */
47 qemu_irq users[16]; /* Who to notify on change */
48 int usecount; /* Automatically idle when unused */
51 static struct clk xtal_osc12m = {
52 .name = "xtal_osc_12m",
53 .rate = 12000000,
54 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
57 static struct clk xtal_osc32k = {
58 .name = "xtal_osc_32k",
59 .rate = 32768,
60 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
61 CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
64 static struct clk ck_ref = {
65 .name = "ck_ref",
66 .alias = "clkin",
67 .parent = &xtal_osc12m,
68 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
69 ALWAYS_ENABLED,
72 /* If a dpll is disabled it becomes a bypass, child clocks don't stop */
73 static struct clk dpll1 = {
74 .name = "dpll1",
75 .parent = &ck_ref,
76 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
77 ALWAYS_ENABLED,
80 static struct clk dpll2 = {
81 .name = "dpll2",
82 .parent = &ck_ref,
83 .flags = CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
86 static struct clk dpll3 = {
87 .name = "dpll3",
88 .parent = &ck_ref,
89 .flags = CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
92 static struct clk dpll4 = {
93 .name = "dpll4",
94 .parent = &ck_ref,
95 .multiplier = 4,
96 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
99 static struct clk apll = {
100 .name = "apll",
101 .parent = &ck_ref,
102 .multiplier = 48,
103 .divisor = 12,
104 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
107 static struct clk ck_48m = {
108 .name = "ck_48m",
109 .parent = &dpll4, /* either dpll4 or apll */
110 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
113 static struct clk ck_dpll1out = {
114 .name = "ck_dpll1out",
115 .parent = &dpll1,
116 .flags = CLOCK_IN_OMAP16XX,
119 static struct clk sossi_ck = {
120 .name = "ck_sossi",
121 .parent = &ck_dpll1out,
122 .flags = CLOCK_IN_OMAP16XX,
125 static struct clk clkm1 = {
126 .name = "clkm1",
127 .alias = "ck_gen1",
128 .parent = &dpll1,
129 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
130 ALWAYS_ENABLED,
133 static struct clk clkm2 = {
134 .name = "clkm2",
135 .alias = "ck_gen2",
136 .parent = &dpll1,
137 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
138 ALWAYS_ENABLED,
141 static struct clk clkm3 = {
142 .name = "clkm3",
143 .alias = "ck_gen3",
144 .parent = &dpll1, /* either dpll1 or ck_ref */
145 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
146 ALWAYS_ENABLED,
149 static struct clk arm_ck = {
150 .name = "arm_ck",
151 .alias = "mpu_ck",
152 .parent = &clkm1,
153 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
154 ALWAYS_ENABLED,
157 static struct clk armper_ck = {
158 .name = "armper_ck",
159 .alias = "mpuper_ck",
160 .parent = &clkm1,
161 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
164 static struct clk arm_gpio_ck = {
165 .name = "arm_gpio_ck",
166 .alias = "mpu_gpio_ck",
167 .parent = &clkm1,
168 .divisor = 1,
169 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
172 static struct clk armxor_ck = {
173 .name = "armxor_ck",
174 .alias = "mpuxor_ck",
175 .parent = &ck_ref,
176 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
179 static struct clk armtim_ck = {
180 .name = "armtim_ck",
181 .alias = "mputim_ck",
182 .parent = &ck_ref, /* either CLKIN or DPLL1 */
183 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
186 static struct clk armwdt_ck = {
187 .name = "armwdt_ck",
188 .alias = "mpuwd_ck",
189 .parent = &clkm1,
190 .divisor = 14,
191 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
192 ALWAYS_ENABLED,
195 static struct clk arminth_ck16xx = {
196 .name = "arminth_ck",
197 .parent = &arm_ck,
198 .flags = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
199 /* Note: On 16xx the frequency can be divided by 2 by programming
200 * ARM_CKCTL:ARM_INTHCK_SEL(14) to 1
202 * 1510 version is in TC clocks.
206 static struct clk dsp_ck = {
207 .name = "dsp_ck",
208 .parent = &clkm2,
209 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
212 static struct clk dspmmu_ck = {
213 .name = "dspmmu_ck",
214 .parent = &clkm2,
215 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
216 ALWAYS_ENABLED,
219 static struct clk dspper_ck = {
220 .name = "dspper_ck",
221 .parent = &clkm2,
222 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
225 static struct clk dspxor_ck = {
226 .name = "dspxor_ck",
227 .parent = &ck_ref,
228 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
231 static struct clk dsptim_ck = {
232 .name = "dsptim_ck",
233 .parent = &ck_ref,
234 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
237 static struct clk tc_ck = {
238 .name = "tc_ck",
239 .parent = &clkm3,
240 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
241 CLOCK_IN_OMAP730 | CLOCK_IN_OMAP310 |
242 ALWAYS_ENABLED,
245 static struct clk arminth_ck15xx = {
246 .name = "arminth_ck",
247 .parent = &tc_ck,
248 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
249 /* Note: On 1510 the frequency follows TC_CK
251 * 16xx version is in MPU clocks.
255 static struct clk tipb_ck = {
256 /* No-idle controlled by "tc_ck" */
257 .name = "tipb_ck",
258 .parent = &tc_ck,
259 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
262 static struct clk l3_ocpi_ck = {
263 /* No-idle controlled by "tc_ck" */
264 .name = "l3_ocpi_ck",
265 .parent = &tc_ck,
266 .flags = CLOCK_IN_OMAP16XX,
269 static struct clk tc1_ck = {
270 .name = "tc1_ck",
271 .parent = &tc_ck,
272 .flags = CLOCK_IN_OMAP16XX,
275 static struct clk tc2_ck = {
276 .name = "tc2_ck",
277 .parent = &tc_ck,
278 .flags = CLOCK_IN_OMAP16XX,
281 static struct clk dma_ck = {
282 /* No-idle controlled by "tc_ck" */
283 .name = "dma_ck",
284 .parent = &tc_ck,
285 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
286 ALWAYS_ENABLED,
289 static struct clk dma_lcdfree_ck = {
290 .name = "dma_lcdfree_ck",
291 .parent = &tc_ck,
292 .flags = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
295 static struct clk api_ck = {
296 .name = "api_ck",
297 .alias = "mpui_ck",
298 .parent = &tc_ck,
299 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
302 static struct clk lb_ck = {
303 .name = "lb_ck",
304 .parent = &tc_ck,
305 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
308 static struct clk lbfree_ck = {
309 .name = "lbfree_ck",
310 .parent = &tc_ck,
311 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
314 static struct clk hsab_ck = {
315 .name = "hsab_ck",
316 .parent = &tc_ck,
317 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
320 static struct clk rhea1_ck = {
321 .name = "rhea1_ck",
322 .parent = &tc_ck,
323 .flags = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
326 static struct clk rhea2_ck = {
327 .name = "rhea2_ck",
328 .parent = &tc_ck,
329 .flags = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
332 static struct clk lcd_ck_16xx = {
333 .name = "lcd_ck",
334 .parent = &clkm3,
335 .flags = CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP730,
338 static struct clk lcd_ck_1510 = {
339 .name = "lcd_ck",
340 .parent = &clkm3,
341 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
344 static struct clk uart1_1510 = {
345 .name = "uart1_ck",
346 /* Direct from ULPD, no real parent */
347 .parent = &armper_ck, /* either armper_ck or dpll4 */
348 .rate = 12000000,
349 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
352 static struct clk uart1_16xx = {
353 .name = "uart1_ck",
354 /* Direct from ULPD, no real parent */
355 .parent = &armper_ck,
356 .rate = 48000000,
357 .flags = CLOCK_IN_OMAP16XX,
360 static struct clk uart2_ck = {
361 .name = "uart2_ck",
362 /* Direct from ULPD, no real parent */
363 .parent = &armper_ck, /* either armper_ck or dpll4 */
364 .rate = 12000000,
365 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
366 ALWAYS_ENABLED,
369 static struct clk uart3_1510 = {
370 .name = "uart3_ck",
371 /* Direct from ULPD, no real parent */
372 .parent = &armper_ck, /* either armper_ck or dpll4 */
373 .rate = 12000000,
374 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
377 static struct clk uart3_16xx = {
378 .name = "uart3_ck",
379 /* Direct from ULPD, no real parent */
380 .parent = &armper_ck,
381 .rate = 48000000,
382 .flags = CLOCK_IN_OMAP16XX,
385 static struct clk usb_clk0 = { /* 6 MHz output on W4_USB_CLK0 */
386 .name = "usb_clk0",
387 .alias = "usb.clko",
388 /* Direct from ULPD, no parent */
389 .rate = 6000000,
390 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
393 static struct clk usb_hhc_ck1510 = {
394 .name = "usb_hhc_ck",
395 /* Direct from ULPD, no parent */
396 .rate = 48000000, /* Actually 2 clocks, 12MHz and 48MHz */
397 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
400 static struct clk usb_hhc_ck16xx = {
401 .name = "usb_hhc_ck",
402 /* Direct from ULPD, no parent */
403 .rate = 48000000,
404 /* OTG_SYSCON_2.OTG_PADEN == 0 (not 1510-compatible) */
405 .flags = CLOCK_IN_OMAP16XX,
408 static struct clk usb_w2fc_mclk = {
409 .name = "usb_w2fc_mclk",
410 .alias = "usb_w2fc_ck",
411 .parent = &ck_48m,
412 .rate = 48000000,
413 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
416 static struct clk mclk_1510 = {
417 .name = "mclk",
418 /* Direct from ULPD, no parent. May be enabled by ext hardware. */
419 .rate = 12000000,
420 .flags = CLOCK_IN_OMAP1510,
423 static struct clk bclk_310 = {
424 .name = "bt_mclk_out", /* Alias midi_mclk_out? */
425 .parent = &armper_ck,
426 .flags = CLOCK_IN_OMAP310,
429 static struct clk mclk_310 = {
430 .name = "com_mclk_out",
431 .parent = &armper_ck,
432 .flags = CLOCK_IN_OMAP310,
435 static struct clk mclk_16xx = {
436 .name = "mclk",
437 /* Direct from ULPD, no parent. May be enabled by ext hardware. */
438 .flags = CLOCK_IN_OMAP16XX,
441 static struct clk bclk_1510 = {
442 .name = "bclk",
443 /* Direct from ULPD, no parent. May be enabled by ext hardware. */
444 .rate = 12000000,
445 .flags = CLOCK_IN_OMAP1510,
448 static struct clk bclk_16xx = {
449 .name = "bclk",
450 /* Direct from ULPD, no parent. May be enabled by ext hardware. */
451 .flags = CLOCK_IN_OMAP16XX,
454 static struct clk mmc1_ck = {
455 .name = "mmc_ck",
456 .id = 1,
457 /* Functional clock is direct from ULPD, interface clock is ARMPER */
458 .parent = &armper_ck, /* either armper_ck or dpll4 */
459 .rate = 48000000,
460 .flags = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
463 static struct clk mmc2_ck = {
464 .name = "mmc_ck",
465 .id = 2,
466 /* Functional clock is direct from ULPD, interface clock is ARMPER */
467 .parent = &armper_ck,
468 .rate = 48000000,
469 .flags = CLOCK_IN_OMAP16XX,
472 static struct clk cam_mclk = {
473 .name = "cam.mclk",
474 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
475 .rate = 12000000,
478 static struct clk cam_exclk = {
479 .name = "cam.exclk",
480 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
481 /* Either 12M from cam.mclk or 48M from dpll4 */
482 .parent = &cam_mclk,
485 static struct clk cam_lclk = {
486 .name = "cam.lclk",
487 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
490 static struct clk i2c_fck = {
491 .name = "i2c_fck",
492 .id = 1,
493 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
494 ALWAYS_ENABLED,
495 .parent = &armxor_ck,
498 static struct clk i2c_ick = {
499 .name = "i2c_ick",
500 .id = 1,
501 .flags = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
502 .parent = &armper_ck,
505 static struct clk clk32k = {
506 .name = "clk32-kHz",
507 .flags = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
508 CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
509 .parent = &xtal_osc32k,
512 static struct clk ref_clk = {
513 .name = "ref_clk",
514 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
515 .rate = 12000000, /* 12 MHz or 13 MHz or 19.2 MHz */
516 /*.parent = sys.xtalin */
519 static struct clk apll_96m = {
520 .name = "apll_96m",
521 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
522 .rate = 96000000,
523 /*.parent = ref_clk */
526 static struct clk apll_54m = {
527 .name = "apll_54m",
528 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
529 .rate = 54000000,
530 /*.parent = ref_clk */
533 static struct clk sys_clk = {
534 .name = "sys_clk",
535 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
536 .rate = 32768,
537 /*.parent = sys.xtalin */
540 static struct clk sleep_clk = {
541 .name = "sleep_clk",
542 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
543 .rate = 32768,
544 /*.parent = sys.xtalin */
547 static struct clk dpll_ck = {
548 .name = "dpll",
549 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
550 .parent = &ref_clk,
553 static struct clk dpll_x2_ck = {
554 .name = "dpll_x2",
555 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
556 .parent = &ref_clk,
559 static struct clk wdt1_sys_clk = {
560 .name = "wdt1_sys_clk",
561 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
562 .rate = 32768,
563 /*.parent = sys.xtalin */
566 static struct clk func_96m_clk = {
567 .name = "func_96m_clk",
568 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
569 .divisor = 1,
570 .parent = &apll_96m,
573 static struct clk func_48m_clk = {
574 .name = "func_48m_clk",
575 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
576 .divisor = 2,
577 .parent = &apll_96m,
580 static struct clk func_12m_clk = {
581 .name = "func_12m_clk",
582 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
583 .divisor = 8,
584 .parent = &apll_96m,
587 static struct clk func_54m_clk = {
588 .name = "func_54m_clk",
589 .flags = CLOCK_IN_OMAP242X,
590 .divisor = 1,
591 .parent = &apll_54m,
594 static struct clk sys_clkout = {
595 .name = "clkout",
596 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
597 .parent = &sys_clk,
600 static struct clk sys_clkout2 = {
601 .name = "clkout2",
602 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
603 .parent = &sys_clk,
606 static struct clk core_clk = {
607 .name = "core_clk",
608 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
609 .parent = &dpll_x2_ck, /* Switchable between dpll_ck and clk32k */
612 static struct clk l3_clk = {
613 .name = "l3_clk",
614 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
615 .parent = &core_clk,
618 static struct clk core_l4_iclk = {
619 .name = "core_l4_iclk",
620 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
621 .parent = &l3_clk,
624 static struct clk wu_l4_iclk = {
625 .name = "wu_l4_iclk",
626 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
627 .parent = &l3_clk,
630 static struct clk core_l3_iclk = {
631 .name = "core_l3_iclk",
632 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
633 .parent = &core_clk,
636 static struct clk core_l4_usb_clk = {
637 .name = "core_l4_usb_clk",
638 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
639 .parent = &l3_clk,
642 static struct clk wu_gpt1_clk = {
643 .name = "wu_gpt1_clk",
644 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
645 .parent = &sys_clk,
648 static struct clk wu_32k_clk = {
649 .name = "wu_32k_clk",
650 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
651 .parent = &sys_clk,
654 static struct clk uart1_fclk = {
655 .name = "uart1_fclk",
656 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
657 .parent = &func_48m_clk,
660 static struct clk uart1_iclk = {
661 .name = "uart1_iclk",
662 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
663 .parent = &core_l4_iclk,
666 static struct clk uart2_fclk = {
667 .name = "uart2_fclk",
668 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
669 .parent = &func_48m_clk,
672 static struct clk uart2_iclk = {
673 .name = "uart2_iclk",
674 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
675 .parent = &core_l4_iclk,
678 static struct clk uart3_fclk = {
679 .name = "uart3_fclk",
680 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
681 .parent = &func_48m_clk,
684 static struct clk uart3_iclk = {
685 .name = "uart3_iclk",
686 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
687 .parent = &core_l4_iclk,
690 static struct clk mpu_fclk = {
691 .name = "mpu_fclk",
692 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
693 .parent = &core_clk,
696 static struct clk mpu_iclk = {
697 .name = "mpu_iclk",
698 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
699 .parent = &core_clk,
702 static struct clk int_m_fclk = {
703 .name = "int_m_fclk",
704 .alias = "mpu_intc_fclk",
705 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
706 .parent = &core_clk,
709 static struct clk int_m_iclk = {
710 .name = "int_m_iclk",
711 .alias = "mpu_intc_iclk",
712 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
713 .parent = &core_clk,
716 static struct clk core_gpt2_clk = {
717 .name = "core_gpt2_clk",
718 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
719 .parent = &sys_clk,
722 static struct clk core_gpt3_clk = {
723 .name = "core_gpt3_clk",
724 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
725 .parent = &sys_clk,
728 static struct clk core_gpt4_clk = {
729 .name = "core_gpt4_clk",
730 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
731 .parent = &sys_clk,
734 static struct clk core_gpt5_clk = {
735 .name = "core_gpt5_clk",
736 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
737 .parent = &sys_clk,
740 static struct clk core_gpt6_clk = {
741 .name = "core_gpt6_clk",
742 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
743 .parent = &sys_clk,
746 static struct clk core_gpt7_clk = {
747 .name = "core_gpt7_clk",
748 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
749 .parent = &sys_clk,
752 static struct clk core_gpt8_clk = {
753 .name = "core_gpt8_clk",
754 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
755 .parent = &sys_clk,
758 static struct clk core_gpt9_clk = {
759 .name = "core_gpt9_clk",
760 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
761 .parent = &sys_clk,
764 static struct clk core_gpt10_clk = {
765 .name = "core_gpt10_clk",
766 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
767 .parent = &sys_clk,
770 static struct clk core_gpt11_clk = {
771 .name = "core_gpt11_clk",
772 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
773 .parent = &sys_clk,
776 static struct clk core_gpt12_clk = {
777 .name = "core_gpt12_clk",
778 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
779 .parent = &sys_clk,
782 static struct clk mcbsp1_clk = {
783 .name = "mcbsp1_cg",
784 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
785 .divisor = 2,
786 .parent = &func_96m_clk,
789 static struct clk mcbsp2_clk = {
790 .name = "mcbsp2_cg",
791 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
792 .divisor = 2,
793 .parent = &func_96m_clk,
796 static struct clk emul_clk = {
797 .name = "emul_ck",
798 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
799 .parent = &func_54m_clk,
802 static struct clk sdma_fclk = {
803 .name = "sdma_fclk",
804 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
805 .parent = &l3_clk,
808 static struct clk sdma_iclk = {
809 .name = "sdma_iclk",
810 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
811 .parent = &core_l3_iclk, /* core_l4_iclk for the configuration port */
814 static struct clk i2c1_fclk = {
815 .name = "i2c1.fclk",
816 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
817 .parent = &func_12m_clk,
818 .divisor = 1,
821 static struct clk i2c1_iclk = {
822 .name = "i2c1.iclk",
823 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
824 .parent = &core_l4_iclk,
827 static struct clk i2c2_fclk = {
828 .name = "i2c2.fclk",
829 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
830 .parent = &func_12m_clk,
831 .divisor = 1,
834 static struct clk i2c2_iclk = {
835 .name = "i2c2.iclk",
836 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
837 .parent = &core_l4_iclk,
840 static struct clk gpio_dbclk[4] = {
842 .name = "gpio1_dbclk",
843 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
844 .parent = &wu_32k_clk,
845 }, {
846 .name = "gpio2_dbclk",
847 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
848 .parent = &wu_32k_clk,
849 }, {
850 .name = "gpio3_dbclk",
851 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
852 .parent = &wu_32k_clk,
853 }, {
854 .name = "gpio4_dbclk",
855 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
856 .parent = &wu_32k_clk,
860 static struct clk gpio_iclk = {
861 .name = "gpio_iclk",
862 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
863 .parent = &wu_l4_iclk,
866 static struct clk mmc_fck = {
867 .name = "mmc_fclk",
868 .flags = CLOCK_IN_OMAP242X,
869 .parent = &func_96m_clk,
872 static struct clk mmc_ick = {
873 .name = "mmc_iclk",
874 .flags = CLOCK_IN_OMAP242X,
875 .parent = &core_l4_iclk,
878 static struct clk spi_fclk[3] = {
880 .name = "spi1_fclk",
881 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
882 .parent = &func_48m_clk,
883 }, {
884 .name = "spi2_fclk",
885 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
886 .parent = &func_48m_clk,
887 }, {
888 .name = "spi3_fclk",
889 .flags = CLOCK_IN_OMAP243X,
890 .parent = &func_48m_clk,
894 static struct clk dss_clk[2] = {
896 .name = "dss_clk1",
897 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
898 .parent = &core_clk,
899 }, {
900 .name = "dss_clk2",
901 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
902 .parent = &sys_clk,
906 static struct clk dss_54m_clk = {
907 .name = "dss_54m_clk",
908 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
909 .parent = &func_54m_clk,
912 static struct clk dss_l3_iclk = {
913 .name = "dss_l3_iclk",
914 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
915 .parent = &core_l3_iclk,
918 static struct clk dss_l4_iclk = {
919 .name = "dss_l4_iclk",
920 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
921 .parent = &core_l4_iclk,
924 static struct clk spi_iclk[3] = {
926 .name = "spi1_iclk",
927 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
928 .parent = &core_l4_iclk,
929 }, {
930 .name = "spi2_iclk",
931 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
932 .parent = &core_l4_iclk,
933 }, {
934 .name = "spi3_iclk",
935 .flags = CLOCK_IN_OMAP243X,
936 .parent = &core_l4_iclk,
940 static struct clk omapctrl_clk = {
941 .name = "omapctrl_iclk",
942 .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
943 /* XXX Should be in WKUP domain */
944 .parent = &core_l4_iclk,
947 static struct clk *onchip_clks[] = {
948 /* OMAP 1 */
950 /* non-ULPD clocks */
951 &xtal_osc12m,
952 &xtal_osc32k,
953 &ck_ref,
954 &dpll1,
955 &dpll2,
956 &dpll3,
957 &dpll4,
958 &apll,
959 &ck_48m,
960 /* CK_GEN1 clocks */
961 &clkm1,
962 &ck_dpll1out,
963 &sossi_ck,
964 &arm_ck,
965 &armper_ck,
966 &arm_gpio_ck,
967 &armxor_ck,
968 &armtim_ck,
969 &armwdt_ck,
970 &arminth_ck15xx, &arminth_ck16xx,
971 /* CK_GEN2 clocks */
972 &clkm2,
973 &dsp_ck,
974 &dspmmu_ck,
975 &dspper_ck,
976 &dspxor_ck,
977 &dsptim_ck,
978 /* CK_GEN3 clocks */
979 &clkm3,
980 &tc_ck,
981 &tipb_ck,
982 &l3_ocpi_ck,
983 &tc1_ck,
984 &tc2_ck,
985 &dma_ck,
986 &dma_lcdfree_ck,
987 &api_ck,
988 &lb_ck,
989 &lbfree_ck,
990 &hsab_ck,
991 &rhea1_ck,
992 &rhea2_ck,
993 &lcd_ck_16xx,
994 &lcd_ck_1510,
995 /* ULPD clocks */
996 &uart1_1510,
997 &uart1_16xx,
998 &uart2_ck,
999 &uart3_1510,
1000 &uart3_16xx,
1001 &usb_clk0,
1002 &usb_hhc_ck1510, &usb_hhc_ck16xx,
1003 &mclk_1510, &mclk_16xx, &mclk_310,
1004 &bclk_1510, &bclk_16xx, &bclk_310,
1005 &mmc1_ck,
1006 &mmc2_ck,
1007 &cam_mclk,
1008 &cam_exclk,
1009 &cam_lclk,
1010 &clk32k,
1011 &usb_w2fc_mclk,
1012 /* Virtual clocks */
1013 &i2c_fck,
1014 &i2c_ick,
1016 /* OMAP 2 */
1018 &ref_clk,
1019 &apll_96m,
1020 &apll_54m,
1021 &sys_clk,
1022 &sleep_clk,
1023 &dpll_ck,
1024 &dpll_x2_ck,
1025 &wdt1_sys_clk,
1026 &func_96m_clk,
1027 &func_48m_clk,
1028 &func_12m_clk,
1029 &func_54m_clk,
1030 &sys_clkout,
1031 &sys_clkout2,
1032 &core_clk,
1033 &l3_clk,
1034 &core_l4_iclk,
1035 &wu_l4_iclk,
1036 &core_l3_iclk,
1037 &core_l4_usb_clk,
1038 &wu_gpt1_clk,
1039 &wu_32k_clk,
1040 &uart1_fclk,
1041 &uart1_iclk,
1042 &uart2_fclk,
1043 &uart2_iclk,
1044 &uart3_fclk,
1045 &uart3_iclk,
1046 &mpu_fclk,
1047 &mpu_iclk,
1048 &int_m_fclk,
1049 &int_m_iclk,
1050 &core_gpt2_clk,
1051 &core_gpt3_clk,
1052 &core_gpt4_clk,
1053 &core_gpt5_clk,
1054 &core_gpt6_clk,
1055 &core_gpt7_clk,
1056 &core_gpt8_clk,
1057 &core_gpt9_clk,
1058 &core_gpt10_clk,
1059 &core_gpt11_clk,
1060 &core_gpt12_clk,
1061 &mcbsp1_clk,
1062 &mcbsp2_clk,
1063 &emul_clk,
1064 &sdma_fclk,
1065 &sdma_iclk,
1066 &i2c1_fclk,
1067 &i2c1_iclk,
1068 &i2c2_fclk,
1069 &i2c2_iclk,
1070 &gpio_dbclk[0],
1071 &gpio_dbclk[1],
1072 &gpio_dbclk[2],
1073 &gpio_dbclk[3],
1074 &gpio_iclk,
1075 &mmc_fck,
1076 &mmc_ick,
1077 &spi_fclk[0],
1078 &spi_iclk[0],
1079 &spi_fclk[1],
1080 &spi_iclk[1],
1081 &spi_fclk[2],
1082 &spi_iclk[2],
1083 &dss_clk[0],
1084 &dss_clk[1],
1085 &dss_54m_clk,
1086 &dss_l3_iclk,
1087 &dss_l4_iclk,
1088 &omapctrl_clk,
1093 void omap_clk_adduser(struct clk *clk, qemu_irq user)
1095 qemu_irq *i;
1097 for (i = clk->users; *i; i ++);
1098 *i = user;
1101 struct clk *omap_findclk(struct omap_mpu_state_s *mpu, const char *name)
1103 struct clk *i;
1105 for (i = mpu->clks; i->name; i ++)
1106 if (!strcmp(i->name, name) || (i->alias && !strcmp(i->alias, name)))
1107 return i;
1108 hw_error("%s: %s not found\n", __FUNCTION__, name);
1111 void omap_clk_get(struct clk *clk)
1113 clk->usecount ++;
1116 void omap_clk_put(struct clk *clk)
1118 if (!(clk->usecount --))
1119 hw_error("%s: %s is not in use\n", __FUNCTION__, clk->name);
1122 static void omap_clk_update(struct clk *clk)
1124 int parent, running;
1125 qemu_irq *user;
1126 struct clk *i;
1128 if (clk->parent)
1129 parent = clk->parent->running;
1130 else
1131 parent = 1;
1133 running = parent && (clk->enabled ||
1134 ((clk->flags & ALWAYS_ENABLED) && clk->usecount));
1135 if (clk->running != running) {
1136 clk->running = running;
1137 for (user = clk->users; *user; user ++)
1138 qemu_set_irq(*user, running);
1139 for (i = clk->child1; i; i = i->sibling)
1140 omap_clk_update(i);
1144 static void omap_clk_rate_update_full(struct clk *clk, unsigned long int rate,
1145 unsigned long int div, unsigned long int mult)
1147 struct clk *i;
1148 qemu_irq *user;
1150 clk->rate = muldiv64(rate, mult, div);
1151 if (clk->running)
1152 for (user = clk->users; *user; user ++)
1153 qemu_irq_raise(*user);
1154 for (i = clk->child1; i; i = i->sibling)
1155 omap_clk_rate_update_full(i, rate,
1156 div * i->divisor, mult * i->multiplier);
1159 static void omap_clk_rate_update(struct clk *clk)
1161 struct clk *i;
1162 unsigned long int div, mult = div = 1;
1164 for (i = clk; i->parent; i = i->parent) {
1165 div *= i->divisor;
1166 mult *= i->multiplier;
1169 omap_clk_rate_update_full(clk, i->rate, div, mult);
1172 void omap_clk_reparent(struct clk *clk, struct clk *parent)
1174 struct clk **p;
1176 if (clk->parent) {
1177 for (p = &clk->parent->child1; *p != clk; p = &(*p)->sibling);
1178 *p = clk->sibling;
1181 clk->parent = parent;
1182 if (parent) {
1183 clk->sibling = parent->child1;
1184 parent->child1 = clk;
1185 omap_clk_update(clk);
1186 omap_clk_rate_update(clk);
1187 } else
1188 clk->sibling = 0;
1191 void omap_clk_onoff(struct clk *clk, int on)
1193 clk->enabled = on;
1194 omap_clk_update(clk);
1197 void omap_clk_canidle(struct clk *clk, int can)
1199 if (can)
1200 omap_clk_put(clk);
1201 else
1202 omap_clk_get(clk);
1205 void omap_clk_setrate(struct clk *clk, int divide, int multiply)
1207 clk->divisor = divide;
1208 clk->multiplier = multiply;
1209 omap_clk_rate_update(clk);
1212 int64_t omap_clk_getrate(omap_clk clk)
1214 return clk->rate;
1217 void omap_clk_init(struct omap_mpu_state_s *mpu)
1219 struct clk **i, *j, *k;
1220 int count;
1221 int flag;
1223 if (cpu_is_omap310(mpu))
1224 flag = CLOCK_IN_OMAP310;
1225 else if (cpu_is_omap1510(mpu))
1226 flag = CLOCK_IN_OMAP1510;
1227 else if (cpu_is_omap2410(mpu) || cpu_is_omap2420(mpu))
1228 flag = CLOCK_IN_OMAP242X;
1229 else if (cpu_is_omap2430(mpu))
1230 flag = CLOCK_IN_OMAP243X;
1231 else if (cpu_is_omap3430(mpu))
1232 flag = CLOCK_IN_OMAP243X;
1233 else
1234 return;
1236 for (i = onchip_clks, count = 0; *i; i ++)
1237 if ((*i)->flags & flag)
1238 count ++;
1239 mpu->clks = (struct clk *) qemu_mallocz(sizeof(struct clk) * (count + 1));
1240 for (i = onchip_clks, j = mpu->clks; *i; i ++)
1241 if ((*i)->flags & flag) {
1242 memcpy(j, *i, sizeof(struct clk));
1243 for (k = mpu->clks; k < j; k ++)
1244 if (j->parent && !strcmp(j->parent->name, k->name)) {
1245 j->parent = k;
1246 j->sibling = k->child1;
1247 k->child1 = j;
1248 } else if (k->parent && !strcmp(k->parent->name, j->name)) {
1249 k->parent = j;
1250 k->sibling = j->child1;
1251 j->child1 = k;
1253 j->divisor = j->divisor ?: 1;
1254 j->multiplier = j->multiplier ?: 1;
1255 j ++;
1257 for (j = mpu->clks; count --; j ++) {
1258 omap_clk_update(j);
1259 omap_clk_rate_update(j);