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virtio-serial: save/load: Ensure we have hot-plugged ports instantiated
[qemu/kraxel.git] / hw / omap1.c
blob8649dbdab3b73d2134fbf93d1950f6054b359904
1 /*
2 * TI OMAP processors emulation.
3 *
4 * Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 or
9 * (at your option) version 3 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #include "hw.h"
20 #include "arm-misc.h"
21 #include "omap.h"
22 #include "sysemu.h"
23 #include "qemu-timer.h"
24 #include "qemu-char.h"
25 #include "soc_dma.h"
26 /* We use pc-style serial ports. */
27 #include "pc.h"
28
29 /* Should signal the TCMI/GPMC */
30 uint32_t omap_badwidth_read8(void *opaque, target_phys_addr_t addr)
31 {
32 uint8_t ret;
33
34 OMAP_8B_REG(addr);
35 cpu_physical_memory_read(addr, (void *) &ret, 1);
36 return ret;
37 }
38
39 void omap_badwidth_write8(void *opaque, target_phys_addr_t addr,
40 uint32_t value)
41 {
42 uint8_t val8 = value;
43
44 OMAP_8B_REG(addr);
45 cpu_physical_memory_write(addr, (void *) &val8, 1);
46 }
47
48 uint32_t omap_badwidth_read16(void *opaque, target_phys_addr_t addr)
49 {
50 uint16_t ret;
51
52 OMAP_16B_REG(addr);
53 cpu_physical_memory_read(addr, (void *) &ret, 2);
54 return ret;
55 }
56
57 void omap_badwidth_write16(void *opaque, target_phys_addr_t addr,
58 uint32_t value)
59 {
60 uint16_t val16 = value;
61
62 OMAP_16B_REG(addr);
63 cpu_physical_memory_write(addr, (void *) &val16, 2);
64 }
65
66 uint32_t omap_badwidth_read32(void *opaque, target_phys_addr_t addr)
67 {
68 uint32_t ret;
69
70 OMAP_32B_REG(addr);
71 cpu_physical_memory_read(addr, (void *) &ret, 4);
72 return ret;
73 }
74
75 void omap_badwidth_write32(void *opaque, target_phys_addr_t addr,
76 uint32_t value)
77 {
78 OMAP_32B_REG(addr);
79 cpu_physical_memory_write(addr, (void *) &value, 4);
80 }
81
82 /* Interrupt Handlers */
83 struct omap_intr_handler_bank_s {
84 uint32_t irqs;
85 uint32_t inputs;
86 uint32_t mask;
87 uint32_t fiq;
88 uint32_t sens_edge;
89 uint32_t swi;
90 unsigned char priority[32];
91 };
92
93 struct omap_intr_handler_s {
94 qemu_irq *pins;
95 qemu_irq parent_intr[2];
96 unsigned char nbanks;
97 int level_only;
98
99 /* state */
100 uint32_t new_agr[2];
101 int sir_intr[2];
102 int autoidle;
103 uint32_t mask;
104 struct omap_intr_handler_bank_s bank[];
105 };
106
107 static void omap_inth_sir_update(struct omap_intr_handler_s *s, int is_fiq)
108 {
109 int i, j, sir_intr, p_intr, p, f;
110 uint32_t level;
111 sir_intr = 0;
112 p_intr = 255;
113
114 /* Find the interrupt line with the highest dynamic priority.
115 * Note: 0 denotes the hightest priority.
116 * If all interrupts have the same priority, the default order is IRQ_N,
117 * IRQ_N-1,...,IRQ_0. */
118 for (j = 0; j < s->nbanks; ++j) {
119 level = s->bank[j].irqs & ~s->bank[j].mask &
120 (is_fiq ? s->bank[j].fiq : ~s->bank[j].fiq);
121 for (f = ffs(level), i = f - 1, level >>= f - 1; f; i += f,
122 level >>= f) {
123 p = s->bank[j].priority[i];
124 if (p <= p_intr) {
125 p_intr = p;
126 sir_intr = 32 * j + i;
127 }
128 f = ffs(level >> 1);
129 }
130 }
131 s->sir_intr[is_fiq] = sir_intr;
132 }
133
134 static inline void omap_inth_update(struct omap_intr_handler_s *s, int is_fiq)
135 {
136 int i;
137 uint32_t has_intr = 0;
138
139 for (i = 0; i < s->nbanks; ++i)
140 has_intr |= s->bank[i].irqs & ~s->bank[i].mask &
141 (is_fiq ? s->bank[i].fiq : ~s->bank[i].fiq);
142
143 if (s->new_agr[is_fiq] & has_intr & s->mask) {
144 s->new_agr[is_fiq] = 0;
145 omap_inth_sir_update(s, is_fiq);
146 qemu_set_irq(s->parent_intr[is_fiq], 1);
147 }
148 }
149
150 #define INT_FALLING_EDGE 0
151 #define INT_LOW_LEVEL 1
152
153 static void omap_set_intr(void *opaque, int irq, int req)
154 {
155 struct omap_intr_handler_s *ih = (struct omap_intr_handler_s *) opaque;
156 uint32_t rise;
157
158 struct omap_intr_handler_bank_s *bank = &ih->bank[irq >> 5];
159 int n = irq & 31;
160
161 if (req) {
162 rise = ~bank->irqs & (1 << n);
163 if (~bank->sens_edge & (1 << n))
164 rise &= ~bank->inputs;
165
166 bank->inputs |= (1 << n);
167 if (rise) {
168 bank->irqs |= rise;
169 omap_inth_update(ih, 0);
170 omap_inth_update(ih, 1);
171 }
172 } else {
173 rise = bank->sens_edge & bank->irqs & (1 << n);
174 bank->irqs &= ~rise;
175 bank->inputs &= ~(1 << n);
176 }
177 }
178
179 /* Simplified version with no edge detection */
180 static void omap_set_intr_noedge(void *opaque, int irq, int req)
181 {
182 struct omap_intr_handler_s *ih = (struct omap_intr_handler_s *) opaque;
183 uint32_t rise;
184
185 struct omap_intr_handler_bank_s *bank = &ih->bank[irq >> 5];
186 int n = irq & 31;
187
188 if (req) {
189 rise = ~bank->inputs & (1 << n);
190 if (rise) {
191 bank->irqs |= bank->inputs |= rise;
192 omap_inth_update(ih, 0);
193 omap_inth_update(ih, 1);
194 }
195 } else
196 bank->irqs = (bank->inputs &= ~(1 << n)) | bank->swi;
197 }
198
199 static uint32_t omap_inth_read(void *opaque, target_phys_addr_t addr)
200 {
201 struct omap_intr_handler_s *s = (struct omap_intr_handler_s *) opaque;
202 int i, offset = addr;
203 int bank_no = offset >> 8;
204 int line_no;
205 struct omap_intr_handler_bank_s *bank = &s->bank[bank_no];
206 offset &= 0xff;
207
208 switch (offset) {
209 case 0x00: /* ITR */
210 return bank->irqs;
211
212 case 0x04: /* MIR */
213 return bank->mask;
214
215 case 0x10: /* SIR_IRQ_CODE */
216 case 0x14: /* SIR_FIQ_CODE */
217 if (bank_no != 0)
218 break;
219 line_no = s->sir_intr[(offset - 0x10) >> 2];
220 bank = &s->bank[line_no >> 5];
221 i = line_no & 31;
222 if (((bank->sens_edge >> i) & 1) == INT_FALLING_EDGE)
223 bank->irqs &= ~(1 << i);
224 return line_no;
225
226 case 0x18: /* CONTROL_REG */
227 if (bank_no != 0)
228 break;
229 return 0;
230
231 case 0x1c: /* ILR0 */
232 case 0x20: /* ILR1 */
233 case 0x24: /* ILR2 */
234 case 0x28: /* ILR3 */
235 case 0x2c: /* ILR4 */
236 case 0x30: /* ILR5 */
237 case 0x34: /* ILR6 */
238 case 0x38: /* ILR7 */
239 case 0x3c: /* ILR8 */
240 case 0x40: /* ILR9 */
241 case 0x44: /* ILR10 */
242 case 0x48: /* ILR11 */
243 case 0x4c: /* ILR12 */
244 case 0x50: /* ILR13 */
245 case 0x54: /* ILR14 */
246 case 0x58: /* ILR15 */
247 case 0x5c: /* ILR16 */
248 case 0x60: /* ILR17 */
249 case 0x64: /* ILR18 */
250 case 0x68: /* ILR19 */
251 case 0x6c: /* ILR20 */
252 case 0x70: /* ILR21 */
253 case 0x74: /* ILR22 */
254 case 0x78: /* ILR23 */
255 case 0x7c: /* ILR24 */
256 case 0x80: /* ILR25 */
257 case 0x84: /* ILR26 */
258 case 0x88: /* ILR27 */
259 case 0x8c: /* ILR28 */
260 case 0x90: /* ILR29 */
261 case 0x94: /* ILR30 */
262 case 0x98: /* ILR31 */
263 i = (offset - 0x1c) >> 2;
264 return (bank->priority[i] << 2) |
265 (((bank->sens_edge >> i) & 1) << 1) |
266 ((bank->fiq >> i) & 1);
267
268 case 0x9c: /* ISR */
269 return 0x00000000;
270
271 }
272 OMAP_BAD_REG(addr);
273 return 0;
274 }
275
276 static void omap_inth_write(void *opaque, target_phys_addr_t addr,
277 uint32_t value)
278 {
279 struct omap_intr_handler_s *s = (struct omap_intr_handler_s *) opaque;
280 int i, offset = addr;
281 int bank_no = offset >> 8;
282 struct omap_intr_handler_bank_s *bank = &s->bank[bank_no];
283 offset &= 0xff;
284
285 switch (offset) {
286 case 0x00: /* ITR */
287 /* Important: ignore the clearing if the IRQ is level-triggered and
288 the input bit is 1 */
289 bank->irqs &= value | (bank->inputs & bank->sens_edge);
290 return;
291
292 case 0x04: /* MIR */
293 bank->mask = value;
294 omap_inth_update(s, 0);
295 omap_inth_update(s, 1);
296 return;
297
298 case 0x10: /* SIR_IRQ_CODE */
299 case 0x14: /* SIR_FIQ_CODE */
300 OMAP_RO_REG(addr);
301 break;
302
303 case 0x18: /* CONTROL_REG */
304 if (bank_no != 0)
305 break;
306 if (value & 2) {
307 qemu_set_irq(s->parent_intr[1], 0);
308 s->new_agr[1] = ~0;
309 omap_inth_update(s, 1);
310 }
311 if (value & 1) {
312 qemu_set_irq(s->parent_intr[0], 0);
313 s->new_agr[0] = ~0;
314 omap_inth_update(s, 0);
315 }
316 return;
317
318 case 0x1c: /* ILR0 */
319 case 0x20: /* ILR1 */
320 case 0x24: /* ILR2 */
321 case 0x28: /* ILR3 */
322 case 0x2c: /* ILR4 */
323 case 0x30: /* ILR5 */
324 case 0x34: /* ILR6 */
325 case 0x38: /* ILR7 */
326 case 0x3c: /* ILR8 */
327 case 0x40: /* ILR9 */
328 case 0x44: /* ILR10 */
329 case 0x48: /* ILR11 */
330 case 0x4c: /* ILR12 */
331 case 0x50: /* ILR13 */
332 case 0x54: /* ILR14 */
333 case 0x58: /* ILR15 */
334 case 0x5c: /* ILR16 */
335 case 0x60: /* ILR17 */
336 case 0x64: /* ILR18 */
337 case 0x68: /* ILR19 */
338 case 0x6c: /* ILR20 */
339 case 0x70: /* ILR21 */
340 case 0x74: /* ILR22 */
341 case 0x78: /* ILR23 */
342 case 0x7c: /* ILR24 */
343 case 0x80: /* ILR25 */
344 case 0x84: /* ILR26 */
345 case 0x88: /* ILR27 */
346 case 0x8c: /* ILR28 */
347 case 0x90: /* ILR29 */
348 case 0x94: /* ILR30 */
349 case 0x98: /* ILR31 */
350 i = (offset - 0x1c) >> 2;
351 bank->priority[i] = (value >> 2) & 0x1f;
352 bank->sens_edge &= ~(1 << i);
353 bank->sens_edge |= ((value >> 1) & 1) << i;
354 bank->fiq &= ~(1 << i);
355 bank->fiq |= (value & 1) << i;
356 return;
357
358 case 0x9c: /* ISR */
359 for (i = 0; i < 32; i ++)
360 if (value & (1 << i)) {
361 omap_set_intr(s, 32 * bank_no + i, 1);
362 return;
363 }
364 return;
365 }
366 OMAP_BAD_REG(addr);
367 }
368
369 static CPUReadMemoryFunc * const omap_inth_readfn[] = {
370 omap_badwidth_read32,
371 omap_badwidth_read32,
372 omap_inth_read,
373 };
374
375 static CPUWriteMemoryFunc * const omap_inth_writefn[] = {
376 omap_inth_write,
377 omap_inth_write,
378 omap_inth_write,
379 };
380
381 void omap_inth_reset(struct omap_intr_handler_s *s)
382 {
383 int i;
384
385 for (i = 0; i < s->nbanks; ++i){
386 s->bank[i].irqs = 0x00000000;
387 s->bank[i].mask = 0xffffffff;
388 s->bank[i].sens_edge = 0x00000000;
389 s->bank[i].fiq = 0x00000000;
390 s->bank[i].inputs = 0x00000000;
391 s->bank[i].swi = 0x00000000;
392 memset(s->bank[i].priority, 0, sizeof(s->bank[i].priority));
393
394 if (s->level_only)
395 s->bank[i].sens_edge = 0xffffffff;
396 }
397
398 s->new_agr[0] = ~0;
399 s->new_agr[1] = ~0;
400 s->sir_intr[0] = 0;
401 s->sir_intr[1] = 0;
402 s->autoidle = 0;
403 s->mask = ~0;
404
405 qemu_set_irq(s->parent_intr[0], 0);
406 qemu_set_irq(s->parent_intr[1], 0);
407 }
408
409 struct omap_intr_handler_s *omap_inth_init(target_phys_addr_t base,
410 unsigned long size, unsigned char nbanks, qemu_irq **pins,
411 qemu_irq parent_irq, qemu_irq parent_fiq, omap_clk clk)
412 {
413 int iomemtype;
414 struct omap_intr_handler_s *s = (struct omap_intr_handler_s *)
415 qemu_mallocz(sizeof(struct omap_intr_handler_s) +
416 sizeof(struct omap_intr_handler_bank_s) * nbanks);
417
418 s->parent_intr[0] = parent_irq;
419 s->parent_intr[1] = parent_fiq;
420 s->nbanks = nbanks;
421 s->pins = qemu_allocate_irqs(omap_set_intr, s, nbanks * 32);
422 if (pins)
423 *pins = s->pins;
424
425 omap_inth_reset(s);
426
427 iomemtype = cpu_register_io_memory(omap_inth_readfn,
428 omap_inth_writefn, s);
429 cpu_register_physical_memory(base, size, iomemtype);
430
431 return s;
432 }
433
434 static uint32_t omap2_inth_read(void *opaque, target_phys_addr_t addr)
435 {
436 struct omap_intr_handler_s *s = (struct omap_intr_handler_s *) opaque;
437 int offset = addr;
438 int bank_no, line_no;
439 struct omap_intr_handler_bank_s *bank = NULL;
440
441 if ((offset & 0xf80) == 0x80) {
442 bank_no = (offset & 0x60) >> 5;
443 if (bank_no < s->nbanks) {
444 offset &= ~0x60;
445 bank = &s->bank[bank_no];
446 }
447 }
448
449 switch (offset) {
450 case 0x00: /* INTC_REVISION */
451 return 0x21;
452
453 case 0x10: /* INTC_SYSCONFIG */
454 return (s->autoidle >> 2) & 1;
455
456 case 0x14: /* INTC_SYSSTATUS */
457 return 1; /* RESETDONE */
458
459 case 0x40: /* INTC_SIR_IRQ */
460 return s->sir_intr[0];
461
462 case 0x44: /* INTC_SIR_FIQ */
463 return s->sir_intr[1];
464
465 case 0x48: /* INTC_CONTROL */
466 return (!s->mask) << 2; /* GLOBALMASK */
467
468 case 0x4c: /* INTC_PROTECTION */
469 return 0;
470
471 case 0x50: /* INTC_IDLE */
472 return s->autoidle & 3;
473
474 /* Per-bank registers */
475 case 0x80: /* INTC_ITR */
476 return bank->inputs;
477
478 case 0x84: /* INTC_MIR */
479 return bank->mask;
480
481 case 0x88: /* INTC_MIR_CLEAR */
482 case 0x8c: /* INTC_MIR_SET */
483 return 0;
484
485 case 0x90: /* INTC_ISR_SET */
486 return bank->swi;
487
488 case 0x94: /* INTC_ISR_CLEAR */
489 return 0;
490
491 case 0x98: /* INTC_PENDING_IRQ */
492 return bank->irqs & ~bank->mask & ~bank->fiq;
493
494 case 0x9c: /* INTC_PENDING_FIQ */
495 return bank->irqs & ~bank->mask & bank->fiq;
496
497 /* Per-line registers */
498 case 0x100 ... 0x300: /* INTC_ILR */
499 bank_no = (offset - 0x100) >> 7;
500 if (bank_no > s->nbanks)
501 break;
502 bank = &s->bank[bank_no];
503 line_no = (offset & 0x7f) >> 2;
504 return (bank->priority[line_no] << 2) |
505 ((bank->fiq >> line_no) & 1);
506 }
507 OMAP_BAD_REG(addr);
508 return 0;
509 }
510
511 static void omap2_inth_write(void *opaque, target_phys_addr_t addr,
512 uint32_t value)
513 {
514 struct omap_intr_handler_s *s = (struct omap_intr_handler_s *) opaque;
515 int offset = addr;
516 int bank_no, line_no;
517 struct omap_intr_handler_bank_s *bank = NULL;
518
519 if ((offset & 0xf80) == 0x80) {
520 bank_no = (offset & 0x60) >> 5;
521 if (bank_no < s->nbanks) {
522 offset &= ~0x60;
523 bank = &s->bank[bank_no];
524 }
525 }
526
527 switch (offset) {
528 case 0x10: /* INTC_SYSCONFIG */
529 s->autoidle &= 4;
530 s->autoidle |= (value & 1) << 2;
531 if (value & 2) /* SOFTRESET */
532 omap_inth_reset(s);
533 return;
534
535 case 0x48: /* INTC_CONTROL */
536 s->mask = (value & 4) ? 0 : ~0; /* GLOBALMASK */
537 if (value & 2) { /* NEWFIQAGR */
538 qemu_set_irq(s->parent_intr[1], 0);
539 s->new_agr[1] = ~0;
540 omap_inth_update(s, 1);
541 }
542 if (value & 1) { /* NEWIRQAGR */
543 qemu_set_irq(s->parent_intr[0], 0);
544 s->new_agr[0] = ~0;
545 omap_inth_update(s, 0);
546 }
547 return;
548
549 case 0x4c: /* INTC_PROTECTION */
550 /* TODO: Make a bitmap (or sizeof(char)map) of access privileges
551 * for every register, see Chapter 3 and 4 for privileged mode. */
552 if (value & 1)
553 fprintf(stderr, "%s: protection mode enable attempt\n",
554 __FUNCTION__);
555 return;
556
557 case 0x50: /* INTC_IDLE */
558 s->autoidle &= ~3;
559 s->autoidle |= value & 3;
560 return;
561
562 /* Per-bank registers */
563 case 0x84: /* INTC_MIR */
564 bank->mask = value;
565 omap_inth_update(s, 0);
566 omap_inth_update(s, 1);
567 return;
568
569 case 0x88: /* INTC_MIR_CLEAR */
570 bank->mask &= ~value;
571 omap_inth_update(s, 0);
572 omap_inth_update(s, 1);
573 return;
574
575 case 0x8c: /* INTC_MIR_SET */
576 bank->mask |= value;
577 return;
578
579 case 0x90: /* INTC_ISR_SET */
580 bank->irqs |= bank->swi |= value;
581 omap_inth_update(s, 0);
582 omap_inth_update(s, 1);
583 return;
584
585 case 0x94: /* INTC_ISR_CLEAR */
586 bank->swi &= ~value;
587 bank->irqs = bank->swi & bank->inputs;
588 return;
589
590 /* Per-line registers */
591 case 0x100 ... 0x300: /* INTC_ILR */
592 bank_no = (offset - 0x100) >> 7;
593 if (bank_no > s->nbanks)
594 break;
595 bank = &s->bank[bank_no];
596 line_no = (offset & 0x7f) >> 2;
597 bank->priority[line_no] = (value >> 2) & 0x3f;
598 bank->fiq &= ~(1 << line_no);
599 bank->fiq |= (value & 1) << line_no;
600 return;
601
602 case 0x00: /* INTC_REVISION */
603 case 0x14: /* INTC_SYSSTATUS */
604 case 0x40: /* INTC_SIR_IRQ */
605 case 0x44: /* INTC_SIR_FIQ */
606 case 0x80: /* INTC_ITR */
607 case 0x98: /* INTC_PENDING_IRQ */
608 case 0x9c: /* INTC_PENDING_FIQ */
609 OMAP_RO_REG(addr);
610 return;
611 }
612 OMAP_BAD_REG(addr);
613 }
614
615 static CPUReadMemoryFunc * const omap2_inth_readfn[] = {
616 omap_badwidth_read32,
617 omap_badwidth_read32,
618 omap2_inth_read,
619 };
620
621 static CPUWriteMemoryFunc * const omap2_inth_writefn[] = {
622 omap2_inth_write,
623 omap2_inth_write,
624 omap2_inth_write,
625 };
626
627 struct omap_intr_handler_s *omap2_inth_init(target_phys_addr_t base,
628 int size, int nbanks, qemu_irq **pins,
629 qemu_irq parent_irq, qemu_irq parent_fiq,
630 omap_clk fclk, omap_clk iclk)
631 {
632 int iomemtype;
633 struct omap_intr_handler_s *s = (struct omap_intr_handler_s *)
634 qemu_mallocz(sizeof(struct omap_intr_handler_s) +
635 sizeof(struct omap_intr_handler_bank_s) * nbanks);
636
637 s->parent_intr[0] = parent_irq;
638 s->parent_intr[1] = parent_fiq;
639 s->nbanks = nbanks;
640 s->level_only = 1;
641 s->pins = qemu_allocate_irqs(omap_set_intr_noedge, s, nbanks * 32);
642 if (pins)
643 *pins = s->pins;
644
645 omap_inth_reset(s);
646
647 iomemtype = cpu_register_io_memory(omap2_inth_readfn,
648 omap2_inth_writefn, s);
649 cpu_register_physical_memory(base, size, iomemtype);
650
651 return s;
652 }
653
654 /* MPU OS timers */
655 struct omap_mpu_timer_s {
656 qemu_irq irq;
657 omap_clk clk;
658 uint32_t val;
659 int64_t time;
660 QEMUTimer *timer;
661 QEMUBH *tick;
662 int64_t rate;
663 int it_ena;
664
665 int enable;
666 int ptv;
667 int ar;
668 int st;
669 uint32_t reset_val;
670 };
671
672 static inline uint32_t omap_timer_read(struct omap_mpu_timer_s *timer)
673 {
674 uint64_t distance = qemu_get_clock(vm_clock) - timer->time;
675
676 if (timer->st && timer->enable && timer->rate)
677 return timer->val - muldiv64(distance >> (timer->ptv + 1),
678 timer->rate, get_ticks_per_sec());
679 else
680 return timer->val;
681 }
682
683 static inline void omap_timer_sync(struct omap_mpu_timer_s *timer)
684 {
685 timer->val = omap_timer_read(timer);
686 timer->time = qemu_get_clock(vm_clock);
687 }
688
689 static inline void omap_timer_update(struct omap_mpu_timer_s *timer)
690 {
691 int64_t expires;
692
693 if (timer->enable && timer->st && timer->rate) {
694 timer->val = timer->reset_val; /* Should skip this on clk enable */
695 expires = muldiv64((uint64_t) timer->val << (timer->ptv + 1),
696 get_ticks_per_sec(), timer->rate);
697
698 /* If timer expiry would be sooner than in about 1 ms and
699 * auto-reload isn't set, then fire immediately. This is a hack
700 * to make systems like PalmOS run in acceptable time. PalmOS
701 * sets the interval to a very low value and polls the status bit
702 * in a busy loop when it wants to sleep just a couple of CPU
703 * ticks. */
704 if (expires > (get_ticks_per_sec() >> 10) || timer->ar)
705 qemu_mod_timer(timer->timer, timer->time + expires);
706 else
707 qemu_bh_schedule(timer->tick);
708 } else
709 qemu_del_timer(timer->timer);
710 }
711
712 static void omap_timer_fire(void *opaque)
713 {
714 struct omap_mpu_timer_s *timer = opaque;
715
716 if (!timer->ar) {
717 timer->val = 0;
718 timer->st = 0;
719 }
720
721 if (timer->it_ena)
722 /* Edge-triggered irq */
723 qemu_irq_pulse(timer->irq);
724 }
725
726 static void omap_timer_tick(void *opaque)
727 {
728 struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque;
729
730 omap_timer_sync(timer);
731 omap_timer_fire(timer);
732 omap_timer_update(timer);
733 }
734
735 static void omap_timer_clk_update(void *opaque, int line, int on)
736 {
737 struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque;
738
739 omap_timer_sync(timer);
740 timer->rate = on ? omap_clk_getrate(timer->clk) : 0;
741 omap_timer_update(timer);
742 }
743
744 static void omap_timer_clk_setup(struct omap_mpu_timer_s *timer)
745 {
746 omap_clk_adduser(timer->clk,
747 qemu_allocate_irqs(omap_timer_clk_update, timer, 1)[0]);
748 timer->rate = omap_clk_getrate(timer->clk);
749 }
750
751 static uint32_t omap_mpu_timer_read(void *opaque, target_phys_addr_t addr)
752 {
753 struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque;
754
755 switch (addr) {
756 case 0x00: /* CNTL_TIMER */
757 return (s->enable << 5) | (s->ptv << 2) | (s->ar << 1) | s->st;
758
759 case 0x04: /* LOAD_TIM */
760 break;
761
762 case 0x08: /* READ_TIM */
763 return omap_timer_read(s);
764 }
765
766 OMAP_BAD_REG(addr);
767 return 0;
768 }
769
770 static void omap_mpu_timer_write(void *opaque, target_phys_addr_t addr,
771 uint32_t value)
772 {
773 struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque;
774
775 switch (addr) {
776 case 0x00: /* CNTL_TIMER */
777 omap_timer_sync(s);
778 s->enable = (value >> 5) & 1;
779 s->ptv = (value >> 2) & 7;
780 s->ar = (value >> 1) & 1;
781 s->st = value & 1;
782 omap_timer_update(s);
783 return;
784
785 case 0x04: /* LOAD_TIM */
786 s->reset_val = value;
787 return;
788
789 case 0x08: /* READ_TIM */
790 OMAP_RO_REG(addr);
791 break;
792
793 default:
794 OMAP_BAD_REG(addr);
795 }
796 }
797
798 static CPUReadMemoryFunc * const omap_mpu_timer_readfn[] = {
799 omap_badwidth_read32,
800 omap_badwidth_read32,
801 omap_mpu_timer_read,
802 };
803
804 static CPUWriteMemoryFunc * const omap_mpu_timer_writefn[] = {
805 omap_badwidth_write32,
806 omap_badwidth_write32,
807 omap_mpu_timer_write,
808 };
809
810 static void omap_mpu_timer_reset(struct omap_mpu_timer_s *s)
811 {
812 qemu_del_timer(s->timer);
813 s->enable = 0;
814 s->reset_val = 31337;
815 s->val = 0;
816 s->ptv = 0;
817 s->ar = 0;
818 s->st = 0;
819 s->it_ena = 1;
820 }
821
822 struct omap_mpu_timer_s *omap_mpu_timer_init(target_phys_addr_t base,
823 qemu_irq irq, omap_clk clk)
824 {
825 int iomemtype;
826 struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *)
827 qemu_mallocz(sizeof(struct omap_mpu_timer_s));
828
829 s->irq = irq;
830 s->clk = clk;
831 s->timer = qemu_new_timer(vm_clock, omap_timer_tick, s);
832 s->tick = qemu_bh_new(omap_timer_fire, s);
833 omap_mpu_timer_reset(s);
834 omap_timer_clk_setup(s);
835
836 iomemtype = cpu_register_io_memory(omap_mpu_timer_readfn,
837 omap_mpu_timer_writefn, s);
838 cpu_register_physical_memory(base, 0x100, iomemtype);
839
840 return s;
841 }
842
843 /* Watchdog timer */
844 struct omap_watchdog_timer_s {
845 struct omap_mpu_timer_s timer;
846 uint8_t last_wr;
847 int mode;
848 int free;
849 int reset;
850 };
851
852 static uint32_t omap_wd_timer_read(void *opaque, target_phys_addr_t addr)
853 {
854 struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque;
855
856 switch (addr) {
857 case 0x00: /* CNTL_TIMER */
858 return (s->timer.ptv << 9) | (s->timer.ar << 8) |
859 (s->timer.st << 7) | (s->free << 1);
860
861 case 0x04: /* READ_TIMER */
862 return omap_timer_read(&s->timer);
863
864 case 0x08: /* TIMER_MODE */
865 return s->mode << 15;
866 }
867
868 OMAP_BAD_REG(addr);
869 return 0;
870 }
871
872 static void omap_wd_timer_write(void *opaque, target_phys_addr_t addr,
873 uint32_t value)
874 {
875 struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque;
876
877 switch (addr) {
878 case 0x00: /* CNTL_TIMER */
879 omap_timer_sync(&s->timer);
880 s->timer.ptv = (value >> 9) & 7;
881 s->timer.ar = (value >> 8) & 1;
882 s->timer.st = (value >> 7) & 1;
883 s->free = (value >> 1) & 1;
884 omap_timer_update(&s->timer);
885 break;
886
887 case 0x04: /* LOAD_TIMER */
888 s->timer.reset_val = value & 0xffff;
889 break;
890
891 case 0x08: /* TIMER_MODE */
892 if (!s->mode && ((value >> 15) & 1))
893 omap_clk_get(s->timer.clk);
894 s->mode |= (value >> 15) & 1;
895 if (s->last_wr == 0xf5) {
896 if ((value & 0xff) == 0xa0) {
897 if (s->mode) {
898 s->mode = 0;
899 omap_clk_put(s->timer.clk);
900 }
901 } else {
902 /* XXX: on T|E hardware somehow this has no effect,
903 * on Zire 71 it works as specified. */
904 s->reset = 1;
905 qemu_system_reset_request();
906 }
907 }
908 s->last_wr = value & 0xff;
909 break;
910
911 default:
912 OMAP_BAD_REG(addr);
913 }
914 }
915
916 static CPUReadMemoryFunc * const omap_wd_timer_readfn[] = {
917 omap_badwidth_read16,
918 omap_wd_timer_read,
919 omap_badwidth_read16,
920 };
921
922 static CPUWriteMemoryFunc * const omap_wd_timer_writefn[] = {
923 omap_badwidth_write16,
924 omap_wd_timer_write,
925 omap_badwidth_write16,
926 };
927
928 static void omap_wd_timer_reset(struct omap_watchdog_timer_s *s)
929 {
930 qemu_del_timer(s->timer.timer);
931 if (!s->mode)
932 omap_clk_get(s->timer.clk);
933 s->mode = 1;
934 s->free = 1;
935 s->reset = 0;
936 s->timer.enable = 1;
937 s->timer.it_ena = 1;
938 s->timer.reset_val = 0xffff;
939 s->timer.val = 0;
940 s->timer.st = 0;
941 s->timer.ptv = 0;
942 s->timer.ar = 0;
943 omap_timer_update(&s->timer);
944 }
945
946 struct omap_watchdog_timer_s *omap_wd_timer_init(target_phys_addr_t base,
947 qemu_irq irq, omap_clk clk)
948 {
949 int iomemtype;
950 struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *)
951 qemu_mallocz(sizeof(struct omap_watchdog_timer_s));
952
953 s->timer.irq = irq;
954 s->timer.clk = clk;
955 s->timer.timer = qemu_new_timer(vm_clock, omap_timer_tick, &s->timer);
956 omap_wd_timer_reset(s);
957 omap_timer_clk_setup(&s->timer);
958
959 iomemtype = cpu_register_io_memory(omap_wd_timer_readfn,
960 omap_wd_timer_writefn, s);
961 cpu_register_physical_memory(base, 0x100, iomemtype);
962
963 return s;
964 }
965
966 /* 32-kHz timer */
967 struct omap_32khz_timer_s {
968 struct omap_mpu_timer_s timer;
969 };
970
971 static uint32_t omap_os_timer_read(void *opaque, target_phys_addr_t addr)
972 {
973 struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque;
974 int offset = addr & OMAP_MPUI_REG_MASK;
975
976 switch (offset) {
977 case 0x00: /* TVR */
978 return s->timer.reset_val;
979
980 case 0x04: /* TCR */
981 return omap_timer_read(&s->timer);
982
983 case 0x08: /* CR */
984 return (s->timer.ar << 3) | (s->timer.it_ena << 2) | s->timer.st;
985
986 default:
987 break;
988 }
989 OMAP_BAD_REG(addr);
990 return 0;
991 }
992
993 static void omap_os_timer_write(void *opaque, target_phys_addr_t addr,
994 uint32_t value)
995 {
996 struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque;
997 int offset = addr & OMAP_MPUI_REG_MASK;
998
999 switch (offset) {
1000 case 0x00: /* TVR */
1001 s->timer.reset_val = value & 0x00ffffff;
1002 break;
1003
1004 case 0x04: /* TCR */
1005 OMAP_RO_REG(addr);
1006 break;
1007
1008 case 0x08: /* CR */
1009 s->timer.ar = (value >> 3) & 1;
1010 s->timer.it_ena = (value >> 2) & 1;
1011 if (s->timer.st != (value & 1) || (value & 2)) {
1012 omap_timer_sync(&s->timer);
1013 s->timer.enable = value & 1;
1014 s->timer.st = value & 1;
1015 omap_timer_update(&s->timer);
1016 }
1017 break;
1018
1019 default:
1020 OMAP_BAD_REG(addr);
1021 }
1022 }
1023
1024 static CPUReadMemoryFunc * const omap_os_timer_readfn[] = {
1025 omap_badwidth_read32,
1026 omap_badwidth_read32,
1027 omap_os_timer_read,
1028 };
1029
1030 static CPUWriteMemoryFunc * const omap_os_timer_writefn[] = {
1031 omap_badwidth_write32,
1032 omap_badwidth_write32,
1033 omap_os_timer_write,
1034 };
1035
1036 static void omap_os_timer_reset(struct omap_32khz_timer_s *s)
1037 {
1038 qemu_del_timer(s->timer.timer);
1039 s->timer.enable = 0;
1040 s->timer.it_ena = 0;
1041 s->timer.reset_val = 0x00ffffff;
1042 s->timer.val = 0;
1043 s->timer.st = 0;
1044 s->timer.ptv = 0;
1045 s->timer.ar = 1;
1046 }
1047
1048 struct omap_32khz_timer_s *omap_os_timer_init(target_phys_addr_t base,
1049 qemu_irq irq, omap_clk clk)
1050 {
1051 int iomemtype;
1052 struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *)
1053 qemu_mallocz(sizeof(struct omap_32khz_timer_s));
1054
1055 s->timer.irq = irq;
1056 s->timer.clk = clk;
1057 s->timer.timer = qemu_new_timer(vm_clock, omap_timer_tick, &s->timer);
1058 omap_os_timer_reset(s);
1059 omap_timer_clk_setup(&s->timer);
1060
1061 iomemtype = cpu_register_io_memory(omap_os_timer_readfn,
1062 omap_os_timer_writefn, s);
1063 cpu_register_physical_memory(base, 0x800, iomemtype);
1064
1065 return s;
1066 }
1067
1068 /* Ultra Low-Power Device Module */
1069 static uint32_t omap_ulpd_pm_read(void *opaque, target_phys_addr_t addr)
1070 {
1071 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1072 uint16_t ret;
1073
1074 switch (addr) {
1075 case 0x14: /* IT_STATUS */
1076 ret = s->ulpd_pm_regs[addr >> 2];
1077 s->ulpd_pm_regs[addr >> 2] = 0;
1078 qemu_irq_lower(s->irq[1][OMAP_INT_GAUGE_32K]);
1079 return ret;
1080
1081 case 0x18: /* Reserved */
1082 case 0x1c: /* Reserved */
1083 case 0x20: /* Reserved */
1084 case 0x28: /* Reserved */
1085 case 0x2c: /* Reserved */
1086 OMAP_BAD_REG(addr);
1087 case 0x00: /* COUNTER_32_LSB */
1088 case 0x04: /* COUNTER_32_MSB */
1089 case 0x08: /* COUNTER_HIGH_FREQ_LSB */
1090 case 0x0c: /* COUNTER_HIGH_FREQ_MSB */
1091 case 0x10: /* GAUGING_CTRL */
1092 case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */
1093 case 0x30: /* CLOCK_CTRL */
1094 case 0x34: /* SOFT_REQ */
1095 case 0x38: /* COUNTER_32_FIQ */
1096 case 0x3c: /* DPLL_CTRL */
1097 case 0x40: /* STATUS_REQ */
1098 /* XXX: check clk::usecount state for every clock */
1099 case 0x48: /* LOCL_TIME */
1100 case 0x4c: /* APLL_CTRL */
1101 case 0x50: /* POWER_CTRL */
1102 return s->ulpd_pm_regs[addr >> 2];
1103 }
1104
1105 OMAP_BAD_REG(addr);
1106 return 0;
1107 }
1108
1109 static inline void omap_ulpd_clk_update(struct omap_mpu_state_s *s,
1110 uint16_t diff, uint16_t value)
1111 {
1112 if (diff & (1 << 4)) /* USB_MCLK_EN */
1113 omap_clk_onoff(omap_findclk(s, "usb_clk0"), (value >> 4) & 1);
1114 if (diff & (1 << 5)) /* DIS_USB_PVCI_CLK */
1115 omap_clk_onoff(omap_findclk(s, "usb_w2fc_ck"), (~value >> 5) & 1);
1116 }
1117
1118 static inline void omap_ulpd_req_update(struct omap_mpu_state_s *s,
1119 uint16_t diff, uint16_t value)
1120 {
1121 if (diff & (1 << 0)) /* SOFT_DPLL_REQ */
1122 omap_clk_canidle(omap_findclk(s, "dpll4"), (~value >> 0) & 1);
1123 if (diff & (1 << 1)) /* SOFT_COM_REQ */
1124 omap_clk_canidle(omap_findclk(s, "com_mclk_out"), (~value >> 1) & 1);
1125 if (diff & (1 << 2)) /* SOFT_SDW_REQ */
1126 omap_clk_canidle(omap_findclk(s, "bt_mclk_out"), (~value >> 2) & 1);
1127 if (diff & (1 << 3)) /* SOFT_USB_REQ */
1128 omap_clk_canidle(omap_findclk(s, "usb_clk0"), (~value >> 3) & 1);
1129 }
1130
1131 static void omap_ulpd_pm_write(void *opaque, target_phys_addr_t addr,
1132 uint32_t value)
1133 {
1134 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1135 int64_t now, ticks;
1136 int div, mult;
1137 static const int bypass_div[4] = { 1, 2, 4, 4 };
1138 uint16_t diff;
1139
1140 switch (addr) {
1141 case 0x00: /* COUNTER_32_LSB */
1142 case 0x04: /* COUNTER_32_MSB */
1143 case 0x08: /* COUNTER_HIGH_FREQ_LSB */
1144 case 0x0c: /* COUNTER_HIGH_FREQ_MSB */
1145 case 0x14: /* IT_STATUS */
1146 case 0x40: /* STATUS_REQ */
1147 OMAP_RO_REG(addr);
1148 break;
1149
1150 case 0x10: /* GAUGING_CTRL */
1151 /* Bits 0 and 1 seem to be confused in the OMAP 310 TRM */
1152 if ((s->ulpd_pm_regs[addr >> 2] ^ value) & 1) {
1153 now = qemu_get_clock(vm_clock);
1154
1155 if (value & 1)
1156 s->ulpd_gauge_start = now;
1157 else {
1158 now -= s->ulpd_gauge_start;
1159
1160 /* 32-kHz ticks */
1161 ticks = muldiv64(now, 32768, get_ticks_per_sec());
1162 s->ulpd_pm_regs[0x00 >> 2] = (ticks >> 0) & 0xffff;
1163 s->ulpd_pm_regs[0x04 >> 2] = (ticks >> 16) & 0xffff;
1164 if (ticks >> 32) /* OVERFLOW_32K */
1165 s->ulpd_pm_regs[0x14 >> 2] |= 1 << 2;
1166
1167 /* High frequency ticks */
1168 ticks = muldiv64(now, 12000000, get_ticks_per_sec());
1169 s->ulpd_pm_regs[0x08 >> 2] = (ticks >> 0) & 0xffff;
1170 s->ulpd_pm_regs[0x0c >> 2] = (ticks >> 16) & 0xffff;
1171 if (ticks >> 32) /* OVERFLOW_HI_FREQ */
1172 s->ulpd_pm_regs[0x14 >> 2] |= 1 << 1;
1173
1174 s->ulpd_pm_regs[0x14 >> 2] |= 1 << 0; /* IT_GAUGING */
1175 qemu_irq_raise(s->irq[1][OMAP_INT_GAUGE_32K]);
1176 }
1177 }
1178 s->ulpd_pm_regs[addr >> 2] = value;
1179 break;
1180
1181 case 0x18: /* Reserved */
1182 case 0x1c: /* Reserved */
1183 case 0x20: /* Reserved */
1184 case 0x28: /* Reserved */
1185 case 0x2c: /* Reserved */
1186 OMAP_BAD_REG(addr);
1187 case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */
1188 case 0x38: /* COUNTER_32_FIQ */
1189 case 0x48: /* LOCL_TIME */
1190 case 0x50: /* POWER_CTRL */
1191 s->ulpd_pm_regs[addr >> 2] = value;
1192 break;
1193
1194 case 0x30: /* CLOCK_CTRL */
1195 diff = s->ulpd_pm_regs[addr >> 2] ^ value;
1196 s->ulpd_pm_regs[addr >> 2] = value & 0x3f;
1197 omap_ulpd_clk_update(s, diff, value);
1198 break;
1199
1200 case 0x34: /* SOFT_REQ */
1201 diff = s->ulpd_pm_regs[addr >> 2] ^ value;
1202 s->ulpd_pm_regs[addr >> 2] = value & 0x1f;
1203 omap_ulpd_req_update(s, diff, value);
1204 break;
1205
1206 case 0x3c: /* DPLL_CTRL */
1207 /* XXX: OMAP310 TRM claims bit 3 is PLL_ENABLE, and bit 4 is
1208 * omitted altogether, probably a typo. */
1209 /* This register has identical semantics with DPLL(1:3) control
1210 * registers, see omap_dpll_write() */
1211 diff = s->ulpd_pm_regs[addr >> 2] & value;
1212 s->ulpd_pm_regs[addr >> 2] = value & 0x2fff;
1213 if (diff & (0x3ff << 2)) {
1214 if (value & (1 << 4)) { /* PLL_ENABLE */
1215 div = ((value >> 5) & 3) + 1; /* PLL_DIV */
1216 mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */
1217 } else {
1218 div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */
1219 mult = 1;
1220 }
1221 omap_clk_setrate(omap_findclk(s, "dpll4"), div, mult);
1222 }
1223
1224 /* Enter the desired mode. */
1225 s->ulpd_pm_regs[addr >> 2] =
1226 (s->ulpd_pm_regs[addr >> 2] & 0xfffe) |
1227 ((s->ulpd_pm_regs[addr >> 2] >> 4) & 1);
1228
1229 /* Act as if the lock is restored. */
1230 s->ulpd_pm_regs[addr >> 2] |= 2;
1231 break;
1232
1233 case 0x4c: /* APLL_CTRL */
1234 diff = s->ulpd_pm_regs[addr >> 2] & value;
1235 s->ulpd_pm_regs[addr >> 2] = value & 0xf;
1236 if (diff & (1 << 0)) /* APLL_NDPLL_SWITCH */
1237 omap_clk_reparent(omap_findclk(s, "ck_48m"), omap_findclk(s,
1238 (value & (1 << 0)) ? "apll" : "dpll4"));
1239 break;
1240
1241 default:
1242 OMAP_BAD_REG(addr);
1243 }
1244 }
1245
1246 static CPUReadMemoryFunc * const omap_ulpd_pm_readfn[] = {
1247 omap_badwidth_read16,
1248 omap_ulpd_pm_read,
1249 omap_badwidth_read16,
1250 };
1251
1252 static CPUWriteMemoryFunc * const omap_ulpd_pm_writefn[] = {
1253 omap_badwidth_write16,
1254 omap_ulpd_pm_write,
1255 omap_badwidth_write16,
1256 };
1257
1258 static void omap_ulpd_pm_reset(struct omap_mpu_state_s *mpu)
1259 {
1260 mpu->ulpd_pm_regs[0x00 >> 2] = 0x0001;
1261 mpu->ulpd_pm_regs[0x04 >> 2] = 0x0000;
1262 mpu->ulpd_pm_regs[0x08 >> 2] = 0x0001;
1263 mpu->ulpd_pm_regs[0x0c >> 2] = 0x0000;
1264 mpu->ulpd_pm_regs[0x10 >> 2] = 0x0000;
1265 mpu->ulpd_pm_regs[0x18 >> 2] = 0x01;
1266 mpu->ulpd_pm_regs[0x1c >> 2] = 0x01;
1267 mpu->ulpd_pm_regs[0x20 >> 2] = 0x01;
1268 mpu->ulpd_pm_regs[0x24 >> 2] = 0x03ff;
1269 mpu->ulpd_pm_regs[0x28 >> 2] = 0x01;
1270 mpu->ulpd_pm_regs[0x2c >> 2] = 0x01;
1271 omap_ulpd_clk_update(mpu, mpu->ulpd_pm_regs[0x30 >> 2], 0x0000);
1272 mpu->ulpd_pm_regs[0x30 >> 2] = 0x0000;
1273 omap_ulpd_req_update(mpu, mpu->ulpd_pm_regs[0x34 >> 2], 0x0000);
1274 mpu->ulpd_pm_regs[0x34 >> 2] = 0x0000;
1275 mpu->ulpd_pm_regs[0x38 >> 2] = 0x0001;
1276 mpu->ulpd_pm_regs[0x3c >> 2] = 0x2211;
1277 mpu->ulpd_pm_regs[0x40 >> 2] = 0x0000; /* FIXME: dump a real STATUS_REQ */
1278 mpu->ulpd_pm_regs[0x48 >> 2] = 0x960;
1279 mpu->ulpd_pm_regs[0x4c >> 2] = 0x08;
1280 mpu->ulpd_pm_regs[0x50 >> 2] = 0x08;
1281 omap_clk_setrate(omap_findclk(mpu, "dpll4"), 1, 4);
1282 omap_clk_reparent(omap_findclk(mpu, "ck_48m"), omap_findclk(mpu, "dpll4"));
1283 }
1284
1285 static void omap_ulpd_pm_init(target_phys_addr_t base,
1286 struct omap_mpu_state_s *mpu)
1287 {
1288 int iomemtype = cpu_register_io_memory(omap_ulpd_pm_readfn,
1289 omap_ulpd_pm_writefn, mpu);
1290
1291 cpu_register_physical_memory(base, 0x800, iomemtype);
1292 omap_ulpd_pm_reset(mpu);
1293 }
1294
1295 /* OMAP Pin Configuration */
1296 static uint32_t omap_pin_cfg_read(void *opaque, target_phys_addr_t addr)
1297 {
1298 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1299
1300 switch (addr) {
1301 case 0x00: /* FUNC_MUX_CTRL_0 */
1302 case 0x04: /* FUNC_MUX_CTRL_1 */
1303 case 0x08: /* FUNC_MUX_CTRL_2 */
1304 return s->func_mux_ctrl[addr >> 2];
1305
1306 case 0x0c: /* COMP_MODE_CTRL_0 */
1307 return s->comp_mode_ctrl[0];
1308
1309 case 0x10: /* FUNC_MUX_CTRL_3 */
1310 case 0x14: /* FUNC_MUX_CTRL_4 */
1311 case 0x18: /* FUNC_MUX_CTRL_5 */
1312 case 0x1c: /* FUNC_MUX_CTRL_6 */
1313 case 0x20: /* FUNC_MUX_CTRL_7 */
1314 case 0x24: /* FUNC_MUX_CTRL_8 */
1315 case 0x28: /* FUNC_MUX_CTRL_9 */
1316 case 0x2c: /* FUNC_MUX_CTRL_A */
1317 case 0x30: /* FUNC_MUX_CTRL_B */
1318 case 0x34: /* FUNC_MUX_CTRL_C */
1319 case 0x38: /* FUNC_MUX_CTRL_D */
1320 return s->func_mux_ctrl[(addr >> 2) - 1];
1321
1322 case 0x40: /* PULL_DWN_CTRL_0 */
1323 case 0x44: /* PULL_DWN_CTRL_1 */
1324 case 0x48: /* PULL_DWN_CTRL_2 */
1325 case 0x4c: /* PULL_DWN_CTRL_3 */
1326 return s->pull_dwn_ctrl[(addr & 0xf) >> 2];
1327
1328 case 0x50: /* GATE_INH_CTRL_0 */
1329 return s->gate_inh_ctrl[0];
1330
1331 case 0x60: /* VOLTAGE_CTRL_0 */
1332 return s->voltage_ctrl[0];
1333
1334 case 0x70: /* TEST_DBG_CTRL_0 */
1335 return s->test_dbg_ctrl[0];
1336
1337 case 0x80: /* MOD_CONF_CTRL_0 */
1338 return s->mod_conf_ctrl[0];
1339 }
1340
1341 OMAP_BAD_REG(addr);
1342 return 0;
1343 }
1344
1345 static inline void omap_pin_funcmux0_update(struct omap_mpu_state_s *s,
1346 uint32_t diff, uint32_t value)
1347 {
1348 if (s->compat1509) {
1349 if (diff & (1 << 9)) /* BLUETOOTH */
1350 omap_clk_onoff(omap_findclk(s, "bt_mclk_out"),
1351 (~value >> 9) & 1);
1352 if (diff & (1 << 7)) /* USB.CLKO */
1353 omap_clk_onoff(omap_findclk(s, "usb.clko"),
1354 (value >> 7) & 1);
1355 }
1356 }
1357
1358 static inline void omap_pin_funcmux1_update(struct omap_mpu_state_s *s,
1359 uint32_t diff, uint32_t value)
1360 {
1361 if (s->compat1509) {
1362 if (diff & (1 << 31)) /* MCBSP3_CLK_HIZ_DI */
1363 omap_clk_onoff(omap_findclk(s, "mcbsp3.clkx"),
1364 (value >> 31) & 1);
1365 if (diff & (1 << 1)) /* CLK32K */
1366 omap_clk_onoff(omap_findclk(s, "clk32k_out"),
1367 (~value >> 1) & 1);
1368 }
1369 }
1370
1371 static inline void omap_pin_modconf1_update(struct omap_mpu_state_s *s,
1372 uint32_t diff, uint32_t value)
1373 {
1374 if (diff & (1 << 31)) /* CONF_MOD_UART3_CLK_MODE_R */
1375 omap_clk_reparent(omap_findclk(s, "uart3_ck"),
1376 omap_findclk(s, ((value >> 31) & 1) ?
1377 "ck_48m" : "armper_ck"));
1378 if (diff & (1 << 30)) /* CONF_MOD_UART2_CLK_MODE_R */
1379 omap_clk_reparent(omap_findclk(s, "uart2_ck"),
1380 omap_findclk(s, ((value >> 30) & 1) ?
1381 "ck_48m" : "armper_ck"));
1382 if (diff & (1 << 29)) /* CONF_MOD_UART1_CLK_MODE_R */
1383 omap_clk_reparent(omap_findclk(s, "uart1_ck"),
1384 omap_findclk(s, ((value >> 29) & 1) ?
1385 "ck_48m" : "armper_ck"));
1386 if (diff & (1 << 23)) /* CONF_MOD_MMC_SD_CLK_REQ_R */
1387 omap_clk_reparent(omap_findclk(s, "mmc_ck"),
1388 omap_findclk(s, ((value >> 23) & 1) ?
1389 "ck_48m" : "armper_ck"));
1390 if (diff & (1 << 12)) /* CONF_MOD_COM_MCLK_12_48_S */
1391 omap_clk_reparent(omap_findclk(s, "com_mclk_out"),
1392 omap_findclk(s, ((value >> 12) & 1) ?
1393 "ck_48m" : "armper_ck"));
1394 if (diff & (1 << 9)) /* CONF_MOD_USB_HOST_HHC_UHO */
1395 omap_clk_onoff(omap_findclk(s, "usb_hhc_ck"), (value >> 9) & 1);
1396 }
1397
1398 static void omap_pin_cfg_write(void *opaque, target_phys_addr_t addr,
1399 uint32_t value)
1400 {
1401 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1402 uint32_t diff;
1403
1404 switch (addr) {
1405 case 0x00: /* FUNC_MUX_CTRL_0 */
1406 diff = s->func_mux_ctrl[addr >> 2] ^ value;
1407 s->func_mux_ctrl[addr >> 2] = value;
1408 omap_pin_funcmux0_update(s, diff, value);
1409 return;
1410
1411 case 0x04: /* FUNC_MUX_CTRL_1 */
1412 diff = s->func_mux_ctrl[addr >> 2] ^ value;
1413 s->func_mux_ctrl[addr >> 2] = value;
1414 omap_pin_funcmux1_update(s, diff, value);
1415 return;
1416
1417 case 0x08: /* FUNC_MUX_CTRL_2 */
1418 s->func_mux_ctrl[addr >> 2] = value;
1419 return;
1420
1421 case 0x0c: /* COMP_MODE_CTRL_0 */
1422 s->comp_mode_ctrl[0] = value;
1423 s->compat1509 = (value != 0x0000eaef);
1424 omap_pin_funcmux0_update(s, ~0, s->func_mux_ctrl[0]);
1425 omap_pin_funcmux1_update(s, ~0, s->func_mux_ctrl[1]);
1426 return;
1427
1428 case 0x10: /* FUNC_MUX_CTRL_3 */
1429 case 0x14: /* FUNC_MUX_CTRL_4 */
1430 case 0x18: /* FUNC_MUX_CTRL_5 */
1431 case 0x1c: /* FUNC_MUX_CTRL_6 */
1432 case 0x20: /* FUNC_MUX_CTRL_7 */
1433 case 0x24: /* FUNC_MUX_CTRL_8 */
1434 case 0x28: /* FUNC_MUX_CTRL_9 */
1435 case 0x2c: /* FUNC_MUX_CTRL_A */
1436 case 0x30: /* FUNC_MUX_CTRL_B */
1437 case 0x34: /* FUNC_MUX_CTRL_C */
1438 case 0x38: /* FUNC_MUX_CTRL_D */
1439 s->func_mux_ctrl[(addr >> 2) - 1] = value;
1440 return;
1441
1442 case 0x40: /* PULL_DWN_CTRL_0 */
1443 case 0x44: /* PULL_DWN_CTRL_1 */
1444 case 0x48: /* PULL_DWN_CTRL_2 */
1445 case 0x4c: /* PULL_DWN_CTRL_3 */
1446 s->pull_dwn_ctrl[(addr & 0xf) >> 2] = value;
1447 return;
1448
1449 case 0x50: /* GATE_INH_CTRL_0 */
1450 s->gate_inh_ctrl[0] = value;
1451 return;
1452
1453 case 0x60: /* VOLTAGE_CTRL_0 */
1454 s->voltage_ctrl[0] = value;
1455 return;
1456
1457 case 0x70: /* TEST_DBG_CTRL_0 */
1458 s->test_dbg_ctrl[0] = value;
1459 return;
1460
1461 case 0x80: /* MOD_CONF_CTRL_0 */
1462 diff = s->mod_conf_ctrl[0] ^ value;
1463 s->mod_conf_ctrl[0] = value;
1464 omap_pin_modconf1_update(s, diff, value);
1465 return;
1466
1467 default:
1468 OMAP_BAD_REG(addr);
1469 }
1470 }
1471
1472 static CPUReadMemoryFunc * const omap_pin_cfg_readfn[] = {
1473 omap_badwidth_read32,
1474 omap_badwidth_read32,
1475 omap_pin_cfg_read,
1476 };
1477
1478 static CPUWriteMemoryFunc * const omap_pin_cfg_writefn[] = {
1479 omap_badwidth_write32,
1480 omap_badwidth_write32,
1481 omap_pin_cfg_write,
1482 };
1483
1484 static void omap_pin_cfg_reset(struct omap_mpu_state_s *mpu)
1485 {
1486 /* Start in Compatibility Mode. */
1487 mpu->compat1509 = 1;
1488 omap_pin_funcmux0_update(mpu, mpu->func_mux_ctrl[0], 0);
1489 omap_pin_funcmux1_update(mpu, mpu->func_mux_ctrl[1], 0);
1490 omap_pin_modconf1_update(mpu, mpu->mod_conf_ctrl[0], 0);
1491 memset(mpu->func_mux_ctrl, 0, sizeof(mpu->func_mux_ctrl));
1492 memset(mpu->comp_mode_ctrl, 0, sizeof(mpu->comp_mode_ctrl));
1493 memset(mpu->pull_dwn_ctrl, 0, sizeof(mpu->pull_dwn_ctrl));
1494 memset(mpu->gate_inh_ctrl, 0, sizeof(mpu->gate_inh_ctrl));
1495 memset(mpu->voltage_ctrl, 0, sizeof(mpu->voltage_ctrl));
1496 memset(mpu->test_dbg_ctrl, 0, sizeof(mpu->test_dbg_ctrl));
1497 memset(mpu->mod_conf_ctrl, 0, sizeof(mpu->mod_conf_ctrl));
1498 }
1499
1500 static void omap_pin_cfg_init(target_phys_addr_t base,
1501 struct omap_mpu_state_s *mpu)
1502 {
1503 int iomemtype = cpu_register_io_memory(omap_pin_cfg_readfn,
1504 omap_pin_cfg_writefn, mpu);
1505
1506 cpu_register_physical_memory(base, 0x800, iomemtype);
1507 omap_pin_cfg_reset(mpu);
1508 }
1509
1510 /* Device Identification, Die Identification */
1511 static uint32_t omap_id_read(void *opaque, target_phys_addr_t addr)
1512 {
1513 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1514
1515 switch (addr) {
1516 case 0xfffe1800: /* DIE_ID_LSB */
1517 return 0xc9581f0e;
1518 case 0xfffe1804: /* DIE_ID_MSB */
1519 return 0xa8858bfa;
1520
1521 case 0xfffe2000: /* PRODUCT_ID_LSB */
1522 return 0x00aaaafc;
1523 case 0xfffe2004: /* PRODUCT_ID_MSB */
1524 return 0xcafeb574;
1525
1526 case 0xfffed400: /* JTAG_ID_LSB */
1527 switch (s->mpu_model) {
1528 case omap310:
1529 return 0x03310315;
1530 case omap1510:
1531 return 0x03310115;
1532 default:
1533 hw_error("%s: bad mpu model\n", __FUNCTION__);
1534 }
1535 break;
1536
1537 case 0xfffed404: /* JTAG_ID_MSB */
1538 switch (s->mpu_model) {
1539 case omap310:
1540 return 0xfb57402f;
1541 case omap1510:
1542 return 0xfb47002f;
1543 default:
1544 hw_error("%s: bad mpu model\n", __FUNCTION__);
1545 }
1546 break;
1547 }
1548
1549 OMAP_BAD_REG(addr);
1550 return 0;
1551 }
1552
1553 static void omap_id_write(void *opaque, target_phys_addr_t addr,
1554 uint32_t value)
1555 {
1556 OMAP_BAD_REG(addr);
1557 }
1558
1559 static CPUReadMemoryFunc * const omap_id_readfn[] = {
1560 omap_badwidth_read32,
1561 omap_badwidth_read32,
1562 omap_id_read,
1563 };
1564
1565 static CPUWriteMemoryFunc * const omap_id_writefn[] = {
1566 omap_badwidth_write32,
1567 omap_badwidth_write32,
1568 omap_id_write,
1569 };
1570
1571 static void omap_id_init(struct omap_mpu_state_s *mpu)
1572 {
1573 int iomemtype = cpu_register_io_memory(omap_id_readfn,
1574 omap_id_writefn, mpu);
1575 cpu_register_physical_memory_offset(0xfffe1800, 0x800, iomemtype, 0xfffe1800);
1576 cpu_register_physical_memory_offset(0xfffed400, 0x100, iomemtype, 0xfffed400);
1577 if (!cpu_is_omap15xx(mpu))
1578 cpu_register_physical_memory_offset(0xfffe2000, 0x800, iomemtype, 0xfffe2000);
1579 }
1580
1581 /* MPUI Control (Dummy) */
1582 static uint32_t omap_mpui_read(void *opaque, target_phys_addr_t addr)
1583 {
1584 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1585
1586 switch (addr) {
1587 case 0x00: /* CTRL */
1588 return s->mpui_ctrl;
1589 case 0x04: /* DEBUG_ADDR */
1590 return 0x01ffffff;
1591 case 0x08: /* DEBUG_DATA */
1592 return 0xffffffff;
1593 case 0x0c: /* DEBUG_FLAG */
1594 return 0x00000800;
1595 case 0x10: /* STATUS */
1596 return 0x00000000;
1597
1598 /* Not in OMAP310 */
1599 case 0x14: /* DSP_STATUS */
1600 case 0x18: /* DSP_BOOT_CONFIG */
1601 return 0x00000000;
1602 case 0x1c: /* DSP_MPUI_CONFIG */
1603 return 0x0000ffff;
1604 }
1605
1606 OMAP_BAD_REG(addr);
1607 return 0;
1608 }
1609
1610 static void omap_mpui_write(void *opaque, target_phys_addr_t addr,
1611 uint32_t value)
1612 {
1613 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1614
1615 switch (addr) {
1616 case 0x00: /* CTRL */
1617 s->mpui_ctrl = value & 0x007fffff;
1618 break;
1619
1620 case 0x04: /* DEBUG_ADDR */
1621 case 0x08: /* DEBUG_DATA */
1622 case 0x0c: /* DEBUG_FLAG */
1623 case 0x10: /* STATUS */
1624 /* Not in OMAP310 */
1625 case 0x14: /* DSP_STATUS */
1626 OMAP_RO_REG(addr);
1627 case 0x18: /* DSP_BOOT_CONFIG */
1628 case 0x1c: /* DSP_MPUI_CONFIG */
1629 break;
1630
1631 default:
1632 OMAP_BAD_REG(addr);
1633 }
1634 }
1635
1636 static CPUReadMemoryFunc * const omap_mpui_readfn[] = {
1637 omap_badwidth_read32,
1638 omap_badwidth_read32,
1639 omap_mpui_read,
1640 };
1641
1642 static CPUWriteMemoryFunc * const omap_mpui_writefn[] = {
1643 omap_badwidth_write32,
1644 omap_badwidth_write32,
1645 omap_mpui_write,
1646 };
1647
1648 static void omap_mpui_reset(struct omap_mpu_state_s *s)
1649 {
1650 s->mpui_ctrl = 0x0003ff1b;
1651 }
1652
1653 static void omap_mpui_init(target_phys_addr_t base,
1654 struct omap_mpu_state_s *mpu)
1655 {
1656 int iomemtype = cpu_register_io_memory(omap_mpui_readfn,
1657 omap_mpui_writefn, mpu);
1658
1659 cpu_register_physical_memory(base, 0x100, iomemtype);
1660
1661 omap_mpui_reset(mpu);
1662 }
1663
1664 /* TIPB Bridges */
1665 struct omap_tipb_bridge_s {
1666 qemu_irq abort;
1667
1668 int width_intr;
1669 uint16_t control;
1670 uint16_t alloc;
1671 uint16_t buffer;
1672 uint16_t enh_control;
1673 };
1674
1675 static uint32_t omap_tipb_bridge_read(void *opaque, target_phys_addr_t addr)
1676 {
1677 struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque;
1678
1679 switch (addr) {
1680 case 0x00: /* TIPB_CNTL */
1681 return s->control;
1682 case 0x04: /* TIPB_BUS_ALLOC */
1683 return s->alloc;
1684 case 0x08: /* MPU_TIPB_CNTL */
1685 return s->buffer;
1686 case 0x0c: /* ENHANCED_TIPB_CNTL */
1687 return s->enh_control;
1688 case 0x10: /* ADDRESS_DBG */
1689 case 0x14: /* DATA_DEBUG_LOW */
1690 case 0x18: /* DATA_DEBUG_HIGH */
1691 return 0xffff;
1692 case 0x1c: /* DEBUG_CNTR_SIG */
1693 return 0x00f8;
1694 }
1695
1696 OMAP_BAD_REG(addr);
1697 return 0;
1698 }
1699
1700 static void omap_tipb_bridge_write(void *opaque, target_phys_addr_t addr,
1701 uint32_t value)
1702 {
1703 struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque;
1704
1705 switch (addr) {
1706 case 0x00: /* TIPB_CNTL */
1707 s->control = value & 0xffff;
1708 break;
1709
1710 case 0x04: /* TIPB_BUS_ALLOC */
1711 s->alloc = value & 0x003f;
1712 break;
1713
1714 case 0x08: /* MPU_TIPB_CNTL */
1715 s->buffer = value & 0x0003;
1716 break;
1717
1718 case 0x0c: /* ENHANCED_TIPB_CNTL */
1719 s->width_intr = !(value & 2);
1720 s->enh_control = value & 0x000f;
1721 break;
1722
1723 case 0x10: /* ADDRESS_DBG */
1724 case 0x14: /* DATA_DEBUG_LOW */
1725 case 0x18: /* DATA_DEBUG_HIGH */
1726 case 0x1c: /* DEBUG_CNTR_SIG */
1727 OMAP_RO_REG(addr);
1728 break;
1729
1730 default:
1731 OMAP_BAD_REG(addr);
1732 }
1733 }
1734
1735 static CPUReadMemoryFunc * const omap_tipb_bridge_readfn[] = {
1736 omap_badwidth_read16,
1737 omap_tipb_bridge_read,
1738 omap_tipb_bridge_read,
1739 };
1740
1741 static CPUWriteMemoryFunc * const omap_tipb_bridge_writefn[] = {
1742 omap_badwidth_write16,
1743 omap_tipb_bridge_write,
1744 omap_tipb_bridge_write,
1745 };
1746
1747 static void omap_tipb_bridge_reset(struct omap_tipb_bridge_s *s)
1748 {
1749 s->control = 0xffff;
1750 s->alloc = 0x0009;
1751 s->buffer = 0x0000;
1752 s->enh_control = 0x000f;
1753 }
1754
1755 struct omap_tipb_bridge_s *omap_tipb_bridge_init(target_phys_addr_t base,
1756 qemu_irq abort_irq, omap_clk clk)
1757 {
1758 int iomemtype;
1759 struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *)
1760 qemu_mallocz(sizeof(struct omap_tipb_bridge_s));
1761
1762 s->abort = abort_irq;
1763 omap_tipb_bridge_reset(s);
1764
1765 iomemtype = cpu_register_io_memory(omap_tipb_bridge_readfn,
1766 omap_tipb_bridge_writefn, s);
1767 cpu_register_physical_memory(base, 0x100, iomemtype);
1768
1769 return s;
1770 }
1771
1772 /* Dummy Traffic Controller's Memory Interface */
1773 static uint32_t omap_tcmi_read(void *opaque, target_phys_addr_t addr)
1774 {
1775 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1776 uint32_t ret;
1777
1778 switch (addr) {
1779 case 0x00: /* IMIF_PRIO */
1780 case 0x04: /* EMIFS_PRIO */
1781 case 0x08: /* EMIFF_PRIO */
1782 case 0x0c: /* EMIFS_CONFIG */
1783 case 0x10: /* EMIFS_CS0_CONFIG */
1784 case 0x14: /* EMIFS_CS1_CONFIG */
1785 case 0x18: /* EMIFS_CS2_CONFIG */
1786 case 0x1c: /* EMIFS_CS3_CONFIG */
1787 case 0x24: /* EMIFF_MRS */
1788 case 0x28: /* TIMEOUT1 */
1789 case 0x2c: /* TIMEOUT2 */
1790 case 0x30: /* TIMEOUT3 */
1791 case 0x3c: /* EMIFF_SDRAM_CONFIG_2 */
1792 case 0x40: /* EMIFS_CFG_DYN_WAIT */
1793 return s->tcmi_regs[addr >> 2];
1794
1795 case 0x20: /* EMIFF_SDRAM_CONFIG */
1796 ret = s->tcmi_regs[addr >> 2];
1797 s->tcmi_regs[addr >> 2] &= ~1; /* XXX: Clear SLRF on SDRAM access */
1798 /* XXX: We can try using the VGA_DIRTY flag for this */
1799 return ret;
1800 }
1801
1802 OMAP_BAD_REG(addr);
1803 return 0;
1804 }
1805
1806 static void omap_tcmi_write(void *opaque, target_phys_addr_t addr,
1807 uint32_t value)
1808 {
1809 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
1810
1811 switch (addr) {
1812 case 0x00: /* IMIF_PRIO */
1813 case 0x04: /* EMIFS_PRIO */
1814 case 0x08: /* EMIFF_PRIO */
1815 case 0x10: /* EMIFS_CS0_CONFIG */
1816 case 0x14: /* EMIFS_CS1_CONFIG */
1817 case 0x18: /* EMIFS_CS2_CONFIG */
1818 case 0x1c: /* EMIFS_CS3_CONFIG */
1819 case 0x20: /* EMIFF_SDRAM_CONFIG */
1820 case 0x24: /* EMIFF_MRS */
1821 case 0x28: /* TIMEOUT1 */
1822 case 0x2c: /* TIMEOUT2 */
1823 case 0x30: /* TIMEOUT3 */
1824 case 0x3c: /* EMIFF_SDRAM_CONFIG_2 */
1825 case 0x40: /* EMIFS_CFG_DYN_WAIT */
1826 s->tcmi_regs[addr >> 2] = value;
1827 break;
1828 case 0x0c: /* EMIFS_CONFIG */
1829 s->tcmi_regs[addr >> 2] = (value & 0xf) | (1 << 4);
1830 break;
1831
1832 default:
1833 OMAP_BAD_REG(addr);
1834 }
1835 }
1836
1837 static CPUReadMemoryFunc * const omap_tcmi_readfn[] = {
1838 omap_badwidth_read32,
1839 omap_badwidth_read32,
1840 omap_tcmi_read,
1841 };
1842
1843 static CPUWriteMemoryFunc * const omap_tcmi_writefn[] = {
1844 omap_badwidth_write32,
1845 omap_badwidth_write32,
1846 omap_tcmi_write,
1847 };
1848
1849 static void omap_tcmi_reset(struct omap_mpu_state_s *mpu)
1850 {
1851 mpu->tcmi_regs[0x00 >> 2] = 0x00000000;
1852 mpu->tcmi_regs[0x04 >> 2] = 0x00000000;
1853 mpu->tcmi_regs[0x08 >> 2] = 0x00000000;
1854 mpu->tcmi_regs[0x0c >> 2] = 0x00000010;
1855 mpu->tcmi_regs[0x10 >> 2] = 0x0010fffb;
1856 mpu->tcmi_regs[0x14 >> 2] = 0x0010fffb;
1857 mpu->tcmi_regs[0x18 >> 2] = 0x0010fffb;
1858 mpu->tcmi_regs[0x1c >> 2] = 0x0010fffb;
1859 mpu->tcmi_regs[0x20 >> 2] = 0x00618800;
1860 mpu->tcmi_regs[0x24 >> 2] = 0x00000037;
1861 mpu->tcmi_regs[0x28 >> 2] = 0x00000000;
1862 mpu->tcmi_regs[0x2c >> 2] = 0x00000000;
1863 mpu->tcmi_regs[0x30 >> 2] = 0x00000000;
1864 mpu->tcmi_regs[0x3c >> 2] = 0x00000003;
1865 mpu->tcmi_regs[0x40 >> 2] = 0x00000000;
1866 }
1867
1868 static void omap_tcmi_init(target_phys_addr_t base,
1869 struct omap_mpu_state_s *mpu)
1870 {
1871 int iomemtype = cpu_register_io_memory(omap_tcmi_readfn,
1872 omap_tcmi_writefn, mpu);
1873
1874 cpu_register_physical_memory(base, 0x100, iomemtype);
1875 omap_tcmi_reset(mpu);
1876 }
1877
1878 /* Digital phase-locked loops control */
1879 static uint32_t omap_dpll_read(void *opaque, target_phys_addr_t addr)
1880 {
1881 struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque;
1882
1883 if (addr == 0x00) /* CTL_REG */
1884 return s->mode;
1885
1886 OMAP_BAD_REG(addr);
1887 return 0;
1888 }
1889
1890 static void omap_dpll_write(void *opaque, target_phys_addr_t addr,
1891 uint32_t value)
1892 {
1893 struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque;
1894 uint16_t diff;
1895 static const int bypass_div[4] = { 1, 2, 4, 4 };
1896 int div, mult;
1897
1898 if (addr == 0x00) { /* CTL_REG */
1899 /* See omap_ulpd_pm_write() too */
1900 diff = s->mode & value;
1901 s->mode = value & 0x2fff;
1902 if (diff & (0x3ff << 2)) {
1903 if (value & (1 << 4)) { /* PLL_ENABLE */
1904 div = ((value >> 5) & 3) + 1; /* PLL_DIV */
1905 mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */
1906 } else {
1907 div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */
1908 mult = 1;
1909 }
1910 omap_clk_setrate(s->dpll, div, mult);
1911 }
1912
1913 /* Enter the desired mode. */
1914 s->mode = (s->mode & 0xfffe) | ((s->mode >> 4) & 1);
1915
1916 /* Act as if the lock is restored. */
1917 s->mode |= 2;
1918 } else {
1919 OMAP_BAD_REG(addr);
1920 }
1921 }
1922
1923 static CPUReadMemoryFunc * const omap_dpll_readfn[] = {
1924 omap_badwidth_read16,
1925 omap_dpll_read,
1926 omap_badwidth_read16,
1927 };
1928
1929 static CPUWriteMemoryFunc * const omap_dpll_writefn[] = {
1930 omap_badwidth_write16,
1931 omap_dpll_write,
1932 omap_badwidth_write16,
1933 };
1934
1935 static void omap_dpll_reset(struct dpll_ctl_s *s)
1936 {
1937 s->mode = 0x2002;
1938 omap_clk_setrate(s->dpll, 1, 1);
1939 }
1940
1941 static void omap_dpll_init(struct dpll_ctl_s *s, target_phys_addr_t base,
1942 omap_clk clk)
1943 {
1944 int iomemtype = cpu_register_io_memory(omap_dpll_readfn,
1945 omap_dpll_writefn, s);
1946
1947 s->dpll = clk;
1948 omap_dpll_reset(s);
1949
1950 cpu_register_physical_memory(base, 0x100, iomemtype);
1951 }
1952
1953 /* UARTs */
1954 struct omap_uart_s {
1955 target_phys_addr_t base;
1956 SerialState *serial; /* TODO */
1957 struct omap_target_agent_s *ta;
1958 omap_clk fclk;
1959 qemu_irq irq;
1960
1961 uint8_t eblr;
1962 uint8_t syscontrol;
1963 uint8_t wkup;
1964 uint8_t cfps;
1965 uint8_t mdr[2];
1966 uint8_t scr;
1967 uint8_t clksel;
1968 };
1969
1970 void omap_uart_reset(struct omap_uart_s *s)
1971 {
1972 s->eblr = 0x00;
1973 s->syscontrol = 0;
1974 s->wkup = 0x3f;
1975 s->cfps = 0x69;
1976 s->clksel = 0;
1977 }
1978
1979 struct omap_uart_s *omap_uart_init(target_phys_addr_t base,
1980 qemu_irq irq, omap_clk fclk, omap_clk iclk,
1981 qemu_irq txdma, qemu_irq rxdma, CharDriverState *chr)
1982 {
1983 struct omap_uart_s *s = (struct omap_uart_s *)
1984 qemu_mallocz(sizeof(struct omap_uart_s));
1985
1986 s->base = base;
1987 s->fclk = fclk;
1988 s->irq = irq;
1989 #ifdef TARGET_WORDS_BIGENDIAN
1990 s->serial = serial_mm_init(base, 2, irq, omap_clk_getrate(fclk)/16,
1991 chr ?: qemu_chr_open("null", "null", NULL), 1,
1992 1);
1993 #else
1994 s->serial = serial_mm_init(base, 2, irq, omap_clk_getrate(fclk)/16,
1995 chr ?: qemu_chr_open("null", "null", NULL), 1,
1996 0);
1997 #endif
1998 return s;
1999 }
2000
2001 static uint32_t omap_uart_read(void *opaque, target_phys_addr_t addr)
2002 {
2003 struct omap_uart_s *s = (struct omap_uart_s *) opaque;
2004
2005 addr &= 0xff;
2006 switch (addr) {
2007 case 0x20: /* MDR1 */
2008 return s->mdr[0];
2009 case 0x24: /* MDR2 */
2010 return s->mdr[1];
2011 case 0x40: /* SCR */
2012 return s->scr;
2013 case 0x44: /* SSR */
2014 return 0x0;
2015 case 0x48: /* EBLR (OMAP2) */
2016 return s->eblr;
2017 case 0x4C: /* OSC_12M_SEL (OMAP1) */
2018 return s->clksel;
2019 case 0x50: /* MVR */
2020 return 0x30;
2021 case 0x54: /* SYSC (OMAP2) */
2022 return s->syscontrol;
2023 case 0x58: /* SYSS (OMAP2) */
2024 return 1;
2025 case 0x5c: /* WER (OMAP2) */
2026 return s->wkup;
2027 case 0x60: /* CFPS (OMAP2) */
2028 return s->cfps;
2029 }
2030
2031 OMAP_BAD_REG(addr);
2032 return 0;
2033 }
2034
2035 static void omap_uart_write(void *opaque, target_phys_addr_t addr,
2036 uint32_t value)
2037 {
2038 struct omap_uart_s *s = (struct omap_uart_s *) opaque;
2039
2040 addr &= 0xff;
2041 switch (addr) {
2042 case 0x20: /* MDR1 */
2043 s->mdr[0] = value & 0x7f;
2044 break;
2045 case 0x24: /* MDR2 */
2046 s->mdr[1] = value & 0xff;
2047 break;
2048 case 0x40: /* SCR */
2049 s->scr = value & 0xff;
2050 break;
2051 case 0x48: /* EBLR (OMAP2) */
2052 s->eblr = value & 0xff;
2053 break;
2054 case 0x4C: /* OSC_12M_SEL (OMAP1) */
2055 s->clksel = value & 1;
2056 break;
2057 case 0x44: /* SSR */
2058 case 0x50: /* MVR */
2059 case 0x58: /* SYSS (OMAP2) */
2060 OMAP_RO_REG(addr);
2061 break;
2062 case 0x54: /* SYSC (OMAP2) */
2063 s->syscontrol = value & 0x1d;
2064 if (value & 2)
2065 omap_uart_reset(s);
2066 break;
2067 case 0x5c: /* WER (OMAP2) */
2068 s->wkup = value & 0x7f;
2069 break;
2070 case 0x60: /* CFPS (OMAP2) */
2071 s->cfps = value & 0xff;
2072 break;
2073 default:
2074 OMAP_BAD_REG(addr);
2075 }
2076 }
2077
2078 static CPUReadMemoryFunc * const omap_uart_readfn[] = {
2079 omap_uart_read,
2080 omap_uart_read,
2081 omap_badwidth_read8,
2082 };
2083
2084 static CPUWriteMemoryFunc * const omap_uart_writefn[] = {
2085 omap_uart_write,
2086 omap_uart_write,
2087 omap_badwidth_write8,
2088 };
2089
2090 struct omap_uart_s *omap2_uart_init(struct omap_target_agent_s *ta,
2091 qemu_irq irq, omap_clk fclk, omap_clk iclk,
2092 qemu_irq txdma, qemu_irq rxdma, CharDriverState *chr)
2093 {
2094 target_phys_addr_t base = omap_l4_attach(ta, 0, 0);
2095 struct omap_uart_s *s = omap_uart_init(base, irq,
2096 fclk, iclk, txdma, rxdma, chr);
2097 int iomemtype = cpu_register_io_memory(omap_uart_readfn,
2098 omap_uart_writefn, s);
2099
2100 s->ta = ta;
2101
2102 cpu_register_physical_memory(base + 0x20, 0x100, iomemtype);
2103
2104 return s;
2105 }
2106
2107 void omap_uart_attach(struct omap_uart_s *s, CharDriverState *chr)
2108 {
2109 /* TODO: Should reuse or destroy current s->serial */
2110 #ifdef TARGET_WORDS_BIGENDIAN
2111 s->serial = serial_mm_init(s->base, 2, s->irq,
2112 omap_clk_getrate(s->fclk) / 16,
2113 chr ?: qemu_chr_open("null", "null", NULL), 1,
2114 1);
2115 #else
2116 s->serial = serial_mm_init(s->base, 2, s->irq,
2117 omap_clk_getrate(s->fclk) / 16,
2118 chr ?: qemu_chr_open("null", "null", NULL), 1,
2119 0);
2120 #endif
2121 }
2122
2123 /* MPU Clock/Reset/Power Mode Control */
2124 static uint32_t omap_clkm_read(void *opaque, target_phys_addr_t addr)
2125 {
2126 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2127
2128 switch (addr) {
2129 case 0x00: /* ARM_CKCTL */
2130 return s->clkm.arm_ckctl;
2131
2132 case 0x04: /* ARM_IDLECT1 */
2133 return s->clkm.arm_idlect1;
2134
2135 case 0x08: /* ARM_IDLECT2 */
2136 return s->clkm.arm_idlect2;
2137
2138 case 0x0c: /* ARM_EWUPCT */
2139 return s->clkm.arm_ewupct;
2140
2141 case 0x10: /* ARM_RSTCT1 */
2142 return s->clkm.arm_rstct1;
2143
2144 case 0x14: /* ARM_RSTCT2 */
2145 return s->clkm.arm_rstct2;
2146
2147 case 0x18: /* ARM_SYSST */
2148 return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start;
2149
2150 case 0x1c: /* ARM_CKOUT1 */
2151 return s->clkm.arm_ckout1;
2152
2153 case 0x20: /* ARM_CKOUT2 */
2154 break;
2155 }
2156
2157 OMAP_BAD_REG(addr);
2158 return 0;
2159 }
2160
2161 static inline void omap_clkm_ckctl_update(struct omap_mpu_state_s *s,
2162 uint16_t diff, uint16_t value)
2163 {
2164 omap_clk clk;
2165
2166 if (diff & (1 << 14)) { /* ARM_INTHCK_SEL */
2167 if (value & (1 << 14))
2168 /* Reserved */;
2169 else {
2170 clk = omap_findclk(s, "arminth_ck");
2171 omap_clk_reparent(clk, omap_findclk(s, "tc_ck"));
2172 }
2173 }
2174 if (diff & (1 << 12)) { /* ARM_TIMXO */
2175 clk = omap_findclk(s, "armtim_ck");
2176 if (value & (1 << 12))
2177 omap_clk_reparent(clk, omap_findclk(s, "clkin"));
2178 else
2179 omap_clk_reparent(clk, omap_findclk(s, "ck_gen1"));
2180 }
2181 /* XXX: en_dspck */
2182 if (diff & (3 << 10)) { /* DSPMMUDIV */
2183 clk = omap_findclk(s, "dspmmu_ck");
2184 omap_clk_setrate(clk, 1 << ((value >> 10) & 3), 1);
2185 }
2186 if (diff & (3 << 8)) { /* TCDIV */
2187 clk = omap_findclk(s, "tc_ck");
2188 omap_clk_setrate(clk, 1 << ((value >> 8) & 3), 1);
2189 }
2190 if (diff & (3 << 6)) { /* DSPDIV */
2191 clk = omap_findclk(s, "dsp_ck");
2192 omap_clk_setrate(clk, 1 << ((value >> 6) & 3), 1);
2193 }
2194 if (diff & (3 << 4)) { /* ARMDIV */
2195 clk = omap_findclk(s, "arm_ck");
2196 omap_clk_setrate(clk, 1 << ((value >> 4) & 3), 1);
2197 }
2198 if (diff & (3 << 2)) { /* LCDDIV */
2199 clk = omap_findclk(s, "lcd_ck");
2200 omap_clk_setrate(clk, 1 << ((value >> 2) & 3), 1);
2201 }
2202 if (diff & (3 << 0)) { /* PERDIV */
2203 clk = omap_findclk(s, "armper_ck");
2204 omap_clk_setrate(clk, 1 << ((value >> 0) & 3), 1);
2205 }
2206 }
2207
2208 static inline void omap_clkm_idlect1_update(struct omap_mpu_state_s *s,
2209 uint16_t diff, uint16_t value)
2210 {
2211 omap_clk clk;
2212
2213 if (value & (1 << 11)) /* SETARM_IDLE */
2214 cpu_interrupt(s->env, CPU_INTERRUPT_HALT);
2215 if (!(value & (1 << 10))) /* WKUP_MODE */
2216 qemu_system_shutdown_request(); /* XXX: disable wakeup from IRQ */
2217
2218 #define SET_CANIDLE(clock, bit) \
2219 if (diff & (1 << bit)) { \
2220 clk = omap_findclk(s, clock); \
2221 omap_clk_canidle(clk, (value >> bit) & 1); \
2222 }
2223 SET_CANIDLE("mpuwd_ck", 0) /* IDLWDT_ARM */
2224 SET_CANIDLE("armxor_ck", 1) /* IDLXORP_ARM */
2225 SET_CANIDLE("mpuper_ck", 2) /* IDLPER_ARM */
2226 SET_CANIDLE("lcd_ck", 3) /* IDLLCD_ARM */
2227 SET_CANIDLE("lb_ck", 4) /* IDLLB_ARM */
2228 SET_CANIDLE("hsab_ck", 5) /* IDLHSAB_ARM */
2229 SET_CANIDLE("tipb_ck", 6) /* IDLIF_ARM */
2230 SET_CANIDLE("dma_ck", 6) /* IDLIF_ARM */
2231 SET_CANIDLE("tc_ck", 6) /* IDLIF_ARM */
2232 SET_CANIDLE("dpll1", 7) /* IDLDPLL_ARM */
2233 SET_CANIDLE("dpll2", 7) /* IDLDPLL_ARM */
2234 SET_CANIDLE("dpll3", 7) /* IDLDPLL_ARM */
2235 SET_CANIDLE("mpui_ck", 8) /* IDLAPI_ARM */
2236 SET_CANIDLE("armtim_ck", 9) /* IDLTIM_ARM */
2237 }
2238
2239 static inline void omap_clkm_idlect2_update(struct omap_mpu_state_s *s,
2240 uint16_t diff, uint16_t value)
2241 {
2242 omap_clk clk;
2243
2244 #define SET_ONOFF(clock, bit) \
2245 if (diff & (1 << bit)) { \
2246 clk = omap_findclk(s, clock); \
2247 omap_clk_onoff(clk, (value >> bit) & 1); \
2248 }
2249 SET_ONOFF("mpuwd_ck", 0) /* EN_WDTCK */
2250 SET_ONOFF("armxor_ck", 1) /* EN_XORPCK */
2251 SET_ONOFF("mpuper_ck", 2) /* EN_PERCK */
2252 SET_ONOFF("lcd_ck", 3) /* EN_LCDCK */
2253 SET_ONOFF("lb_ck", 4) /* EN_LBCK */
2254 SET_ONOFF("hsab_ck", 5) /* EN_HSABCK */
2255 SET_ONOFF("mpui_ck", 6) /* EN_APICK */
2256 SET_ONOFF("armtim_ck", 7) /* EN_TIMCK */
2257 SET_CANIDLE("dma_ck", 8) /* DMACK_REQ */
2258 SET_ONOFF("arm_gpio_ck", 9) /* EN_GPIOCK */
2259 SET_ONOFF("lbfree_ck", 10) /* EN_LBFREECK */
2260 }
2261
2262 static inline void omap_clkm_ckout1_update(struct omap_mpu_state_s *s,
2263 uint16_t diff, uint16_t value)
2264 {
2265 omap_clk clk;
2266
2267 if (diff & (3 << 4)) { /* TCLKOUT */
2268 clk = omap_findclk(s, "tclk_out");
2269 switch ((value >> 4) & 3) {
2270 case 1:
2271 omap_clk_reparent(clk, omap_findclk(s, "ck_gen3"));
2272 omap_clk_onoff(clk, 1);
2273 break;
2274 case 2:
2275 omap_clk_reparent(clk, omap_findclk(s, "tc_ck"));
2276 omap_clk_onoff(clk, 1);
2277 break;
2278 default:
2279 omap_clk_onoff(clk, 0);
2280 }
2281 }
2282 if (diff & (3 << 2)) { /* DCLKOUT */
2283 clk = omap_findclk(s, "dclk_out");
2284 switch ((value >> 2) & 3) {
2285 case 0:
2286 omap_clk_reparent(clk, omap_findclk(s, "dspmmu_ck"));
2287 break;
2288 case 1:
2289 omap_clk_reparent(clk, omap_findclk(s, "ck_gen2"));
2290 break;
2291 case 2:
2292 omap_clk_reparent(clk, omap_findclk(s, "dsp_ck"));
2293 break;
2294 case 3:
2295 omap_clk_reparent(clk, omap_findclk(s, "ck_ref14"));
2296 break;
2297 }
2298 }
2299 if (diff & (3 << 0)) { /* ACLKOUT */
2300 clk = omap_findclk(s, "aclk_out");
2301 switch ((value >> 0) & 3) {
2302 case 1:
2303 omap_clk_reparent(clk, omap_findclk(s, "ck_gen1"));
2304 omap_clk_onoff(clk, 1);
2305 break;
2306 case 2:
2307 omap_clk_reparent(clk, omap_findclk(s, "arm_ck"));
2308 omap_clk_onoff(clk, 1);
2309 break;
2310 case 3:
2311 omap_clk_reparent(clk, omap_findclk(s, "ck_ref14"));
2312 omap_clk_onoff(clk, 1);
2313 break;
2314 default:
2315 omap_clk_onoff(clk, 0);
2316 }
2317 }
2318 }
2319
2320 static void omap_clkm_write(void *opaque, target_phys_addr_t addr,
2321 uint32_t value)
2322 {
2323 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2324 uint16_t diff;
2325 omap_clk clk;
2326 static const char *clkschemename[8] = {
2327 "fully synchronous", "fully asynchronous", "synchronous scalable",
2328 "mix mode 1", "mix mode 2", "bypass mode", "mix mode 3", "mix mode 4",
2329 };
2330
2331 switch (addr) {
2332 case 0x00: /* ARM_CKCTL */
2333 diff = s->clkm.arm_ckctl ^ value;
2334 s->clkm.arm_ckctl = value & 0x7fff;
2335 omap_clkm_ckctl_update(s, diff, value);
2336 return;
2337
2338 case 0x04: /* ARM_IDLECT1 */
2339 diff = s->clkm.arm_idlect1 ^ value;
2340 s->clkm.arm_idlect1 = value & 0x0fff;
2341 omap_clkm_idlect1_update(s, diff, value);
2342 return;
2343
2344 case 0x08: /* ARM_IDLECT2 */
2345 diff = s->clkm.arm_idlect2 ^ value;
2346 s->clkm.arm_idlect2 = value & 0x07ff;
2347 omap_clkm_idlect2_update(s, diff, value);
2348 return;
2349
2350 case 0x0c: /* ARM_EWUPCT */
2351 s->clkm.arm_ewupct = value & 0x003f;
2352 return;
2353
2354 case 0x10: /* ARM_RSTCT1 */
2355 diff = s->clkm.arm_rstct1 ^ value;
2356 s->clkm.arm_rstct1 = value & 0x0007;
2357 if (value & 9) {
2358 qemu_system_reset_request();
2359 s->clkm.cold_start = 0xa;
2360 }
2361 if (diff & ~value & 4) { /* DSP_RST */
2362 omap_mpui_reset(s);
2363 omap_tipb_bridge_reset(s->private_tipb);
2364 omap_tipb_bridge_reset(s->public_tipb);
2365 }
2366 if (diff & 2) { /* DSP_EN */
2367 clk = omap_findclk(s, "dsp_ck");
2368 omap_clk_canidle(clk, (~value >> 1) & 1);
2369 }
2370 return;
2371
2372 case 0x14: /* ARM_RSTCT2 */
2373 s->clkm.arm_rstct2 = value & 0x0001;
2374 return;
2375
2376 case 0x18: /* ARM_SYSST */
2377 if ((s->clkm.clocking_scheme ^ (value >> 11)) & 7) {
2378 s->clkm.clocking_scheme = (value >> 11) & 7;
2379 printf("%s: clocking scheme set to %s\n", __FUNCTION__,
2380 clkschemename[s->clkm.clocking_scheme]);
2381 }
2382 s->clkm.cold_start &= value & 0x3f;
2383 return;
2384
2385 case 0x1c: /* ARM_CKOUT1 */
2386 diff = s->clkm.arm_ckout1 ^ value;
2387 s->clkm.arm_ckout1 = value & 0x003f;
2388 omap_clkm_ckout1_update(s, diff, value);
2389 return;
2390
2391 case 0x20: /* ARM_CKOUT2 */
2392 default:
2393 OMAP_BAD_REG(addr);
2394 }
2395 }
2396
2397 static CPUReadMemoryFunc * const omap_clkm_readfn[] = {
2398 omap_badwidth_read16,
2399 omap_clkm_read,
2400 omap_badwidth_read16,
2401 };
2402
2403 static CPUWriteMemoryFunc * const omap_clkm_writefn[] = {
2404 omap_badwidth_write16,
2405 omap_clkm_write,
2406 omap_badwidth_write16,
2407 };
2408
2409 static uint32_t omap_clkdsp_read(void *opaque, target_phys_addr_t addr)
2410 {
2411 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2412
2413 switch (addr) {
2414 case 0x04: /* DSP_IDLECT1 */
2415 return s->clkm.dsp_idlect1;
2416
2417 case 0x08: /* DSP_IDLECT2 */
2418 return s->clkm.dsp_idlect2;
2419
2420 case 0x14: /* DSP_RSTCT2 */
2421 return s->clkm.dsp_rstct2;
2422
2423 case 0x18: /* DSP_SYSST */
2424 return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start |
2425 (s->env->halted << 6); /* Quite useless... */
2426 }
2427
2428 OMAP_BAD_REG(addr);
2429 return 0;
2430 }
2431
2432 static inline void omap_clkdsp_idlect1_update(struct omap_mpu_state_s *s,
2433 uint16_t diff, uint16_t value)
2434 {
2435 omap_clk clk;
2436
2437 SET_CANIDLE("dspxor_ck", 1); /* IDLXORP_DSP */
2438 }
2439
2440 static inline void omap_clkdsp_idlect2_update(struct omap_mpu_state_s *s,
2441 uint16_t diff, uint16_t value)
2442 {
2443 omap_clk clk;
2444
2445 SET_ONOFF("dspxor_ck", 1); /* EN_XORPCK */
2446 }
2447
2448 static void omap_clkdsp_write(void *opaque, target_phys_addr_t addr,
2449 uint32_t value)
2450 {
2451 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2452 uint16_t diff;
2453
2454 switch (addr) {
2455 case 0x04: /* DSP_IDLECT1 */
2456 diff = s->clkm.dsp_idlect1 ^ value;
2457 s->clkm.dsp_idlect1 = value & 0x01f7;
2458 omap_clkdsp_idlect1_update(s, diff, value);
2459 break;
2460
2461 case 0x08: /* DSP_IDLECT2 */
2462 s->clkm.dsp_idlect2 = value & 0x0037;
2463 diff = s->clkm.dsp_idlect1 ^ value;
2464 omap_clkdsp_idlect2_update(s, diff, value);
2465 break;
2466
2467 case 0x14: /* DSP_RSTCT2 */
2468 s->clkm.dsp_rstct2 = value & 0x0001;
2469 break;
2470
2471 case 0x18: /* DSP_SYSST */
2472 s->clkm.cold_start &= value & 0x3f;
2473 break;
2474
2475 default:
2476 OMAP_BAD_REG(addr);
2477 }
2478 }
2479
2480 static CPUReadMemoryFunc * const omap_clkdsp_readfn[] = {
2481 omap_badwidth_read16,
2482 omap_clkdsp_read,
2483 omap_badwidth_read16,
2484 };
2485
2486 static CPUWriteMemoryFunc * const omap_clkdsp_writefn[] = {
2487 omap_badwidth_write16,
2488 omap_clkdsp_write,
2489 omap_badwidth_write16,
2490 };
2491
2492 static void omap_clkm_reset(struct omap_mpu_state_s *s)
2493 {
2494 if (s->wdt && s->wdt->reset)
2495 s->clkm.cold_start = 0x6;
2496 s->clkm.clocking_scheme = 0;
2497 omap_clkm_ckctl_update(s, ~0, 0x3000);
2498 s->clkm.arm_ckctl = 0x3000;
2499 omap_clkm_idlect1_update(s, s->clkm.arm_idlect1 ^ 0x0400, 0x0400);
2500 s->clkm.arm_idlect1 = 0x0400;
2501 omap_clkm_idlect2_update(s, s->clkm.arm_idlect2 ^ 0x0100, 0x0100);
2502 s->clkm.arm_idlect2 = 0x0100;
2503 s->clkm.arm_ewupct = 0x003f;
2504 s->clkm.arm_rstct1 = 0x0000;
2505 s->clkm.arm_rstct2 = 0x0000;
2506 s->clkm.arm_ckout1 = 0x0015;
2507 s->clkm.dpll1_mode = 0x2002;
2508 omap_clkdsp_idlect1_update(s, s->clkm.dsp_idlect1 ^ 0x0040, 0x0040);
2509 s->clkm.dsp_idlect1 = 0x0040;
2510 omap_clkdsp_idlect2_update(s, ~0, 0x0000);
2511 s->clkm.dsp_idlect2 = 0x0000;
2512 s->clkm.dsp_rstct2 = 0x0000;
2513 }
2514
2515 static void omap_clkm_init(target_phys_addr_t mpu_base,
2516 target_phys_addr_t dsp_base, struct omap_mpu_state_s *s)
2517 {
2518 int iomemtype[2] = {
2519 cpu_register_io_memory(omap_clkm_readfn, omap_clkm_writefn, s),
2520 cpu_register_io_memory(omap_clkdsp_readfn, omap_clkdsp_writefn, s),
2521 };
2522
2523 s->clkm.arm_idlect1 = 0x03ff;
2524 s->clkm.arm_idlect2 = 0x0100;
2525 s->clkm.dsp_idlect1 = 0x0002;
2526 omap_clkm_reset(s);
2527 s->clkm.cold_start = 0x3a;
2528
2529 cpu_register_physical_memory(mpu_base, 0x100, iomemtype[0]);
2530 cpu_register_physical_memory(dsp_base, 0x1000, iomemtype[1]);
2531 }
2532
2533 /* MPU I/O */
2534 struct omap_mpuio_s {
2535 qemu_irq irq;
2536 qemu_irq kbd_irq;
2537 qemu_irq *in;
2538 qemu_irq handler[16];
2539 qemu_irq wakeup;
2540
2541 uint16_t inputs;
2542 uint16_t outputs;
2543 uint16_t dir;
2544 uint16_t edge;
2545 uint16_t mask;
2546 uint16_t ints;
2547
2548 uint16_t debounce;
2549 uint16_t latch;
2550 uint8_t event;
2551
2552 uint8_t buttons[5];
2553 uint8_t row_latch;
2554 uint8_t cols;
2555 int kbd_mask;
2556 int clk;
2557 };
2558
2559 static void omap_mpuio_set(void *opaque, int line, int level)
2560 {
2561 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2562 uint16_t prev = s->inputs;
2563
2564 if (level)
2565 s->inputs |= 1 << line;
2566 else
2567 s->inputs &= ~(1 << line);
2568
2569 if (((1 << line) & s->dir & ~s->mask) && s->clk) {
2570 if ((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) {
2571 s->ints |= 1 << line;
2572 qemu_irq_raise(s->irq);
2573 /* TODO: wakeup */
2574 }
2575 if ((s->event & (1 << 0)) && /* SET_GPIO_EVENT_MODE */
2576 (s->event >> 1) == line) /* PIN_SELECT */
2577 s->latch = s->inputs;
2578 }
2579 }
2580
2581 static void omap_mpuio_kbd_update(struct omap_mpuio_s *s)
2582 {
2583 int i;
2584 uint8_t *row, rows = 0, cols = ~s->cols;
2585
2586 for (row = s->buttons + 4, i = 1 << 4; i; row --, i >>= 1)
2587 if (*row & cols)
2588 rows |= i;
2589
2590 qemu_set_irq(s->kbd_irq, rows && !s->kbd_mask && s->clk);
2591 s->row_latch = ~rows;
2592 }
2593
2594 static uint32_t omap_mpuio_read(void *opaque, target_phys_addr_t addr)
2595 {
2596 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2597 int offset = addr & OMAP_MPUI_REG_MASK;
2598 uint16_t ret;
2599
2600 switch (offset) {
2601 case 0x00: /* INPUT_LATCH */
2602 return s->inputs;
2603
2604 case 0x04: /* OUTPUT_REG */
2605 return s->outputs;
2606
2607 case 0x08: /* IO_CNTL */
2608 return s->dir;
2609
2610 case 0x10: /* KBR_LATCH */
2611 return s->row_latch;
2612
2613 case 0x14: /* KBC_REG */
2614 return s->cols;
2615
2616 case 0x18: /* GPIO_EVENT_MODE_REG */
2617 return s->event;
2618
2619 case 0x1c: /* GPIO_INT_EDGE_REG */
2620 return s->edge;
2621
2622 case 0x20: /* KBD_INT */
2623 return (~s->row_latch & 0x1f) && !s->kbd_mask;
2624
2625 case 0x24: /* GPIO_INT */
2626 ret = s->ints;
2627 s->ints &= s->mask;
2628 if (ret)
2629 qemu_irq_lower(s->irq);
2630 return ret;
2631
2632 case 0x28: /* KBD_MASKIT */
2633 return s->kbd_mask;
2634
2635 case 0x2c: /* GPIO_MASKIT */
2636 return s->mask;
2637
2638 case 0x30: /* GPIO_DEBOUNCING_REG */
2639 return s->debounce;
2640
2641 case 0x34: /* GPIO_LATCH_REG */
2642 return s->latch;
2643 }
2644
2645 OMAP_BAD_REG(addr);
2646 return 0;
2647 }
2648
2649 static void omap_mpuio_write(void *opaque, target_phys_addr_t addr,
2650 uint32_t value)
2651 {
2652 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2653 int offset = addr & OMAP_MPUI_REG_MASK;
2654 uint16_t diff;
2655 int ln;
2656
2657 switch (offset) {
2658 case 0x04: /* OUTPUT_REG */
2659 diff = (s->outputs ^ value) & ~s->dir;
2660 s->outputs = value;
2661 while ((ln = ffs(diff))) {
2662 ln --;
2663 if (s->handler[ln])
2664 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
2665 diff &= ~(1 << ln);
2666 }
2667 break;
2668
2669 case 0x08: /* IO_CNTL */
2670 diff = s->outputs & (s->dir ^ value);
2671 s->dir = value;
2672
2673 value = s->outputs & ~s->dir;
2674 while ((ln = ffs(diff))) {
2675 ln --;
2676 if (s->handler[ln])
2677 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
2678 diff &= ~(1 << ln);
2679 }
2680 break;
2681
2682 case 0x14: /* KBC_REG */
2683 s->cols = value;
2684 omap_mpuio_kbd_update(s);
2685 break;
2686
2687 case 0x18: /* GPIO_EVENT_MODE_REG */
2688 s->event = value & 0x1f;
2689 break;
2690
2691 case 0x1c: /* GPIO_INT_EDGE_REG */
2692 s->edge = value;
2693 break;
2694
2695 case 0x28: /* KBD_MASKIT */
2696 s->kbd_mask = value & 1;
2697 omap_mpuio_kbd_update(s);
2698 break;
2699
2700 case 0x2c: /* GPIO_MASKIT */
2701 s->mask = value;
2702 break;
2703
2704 case 0x30: /* GPIO_DEBOUNCING_REG */
2705 s->debounce = value & 0x1ff;
2706 break;
2707
2708 case 0x00: /* INPUT_LATCH */
2709 case 0x10: /* KBR_LATCH */
2710 case 0x20: /* KBD_INT */
2711 case 0x24: /* GPIO_INT */
2712 case 0x34: /* GPIO_LATCH_REG */
2713 OMAP_RO_REG(addr);
2714 return;
2715
2716 default:
2717 OMAP_BAD_REG(addr);
2718 return;
2719 }
2720 }
2721
2722 static CPUReadMemoryFunc * const omap_mpuio_readfn[] = {
2723 omap_badwidth_read16,
2724 omap_mpuio_read,
2725 omap_badwidth_read16,
2726 };
2727
2728 static CPUWriteMemoryFunc * const omap_mpuio_writefn[] = {
2729 omap_badwidth_write16,
2730 omap_mpuio_write,
2731 omap_badwidth_write16,
2732 };
2733
2734 static void omap_mpuio_reset(struct omap_mpuio_s *s)
2735 {
2736 s->inputs = 0;
2737 s->outputs = 0;
2738 s->dir = ~0;
2739 s->event = 0;
2740 s->edge = 0;
2741 s->kbd_mask = 0;
2742 s->mask = 0;
2743 s->debounce = 0;
2744 s->latch = 0;
2745 s->ints = 0;
2746 s->row_latch = 0x1f;
2747 s->clk = 1;
2748 }
2749
2750 static void omap_mpuio_onoff(void *opaque, int line, int on)
2751 {
2752 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2753
2754 s->clk = on;
2755 if (on)
2756 omap_mpuio_kbd_update(s);
2757 }
2758
2759 struct omap_mpuio_s *omap_mpuio_init(target_phys_addr_t base,
2760 qemu_irq kbd_int, qemu_irq gpio_int, qemu_irq wakeup,
2761 omap_clk clk)
2762 {
2763 int iomemtype;
2764 struct omap_mpuio_s *s = (struct omap_mpuio_s *)
2765 qemu_mallocz(sizeof(struct omap_mpuio_s));
2766
2767 s->irq = gpio_int;
2768 s->kbd_irq = kbd_int;
2769 s->wakeup = wakeup;
2770 s->in = qemu_allocate_irqs(omap_mpuio_set, s, 16);
2771 omap_mpuio_reset(s);
2772
2773 iomemtype = cpu_register_io_memory(omap_mpuio_readfn,
2774 omap_mpuio_writefn, s);
2775 cpu_register_physical_memory(base, 0x800, iomemtype);
2776
2777 omap_clk_adduser(clk, qemu_allocate_irqs(omap_mpuio_onoff, s, 1)[0]);
2778
2779 return s;
2780 }
2781
2782 qemu_irq *omap_mpuio_in_get(struct omap_mpuio_s *s)
2783 {
2784 return s->in;
2785 }
2786
2787 void omap_mpuio_out_set(struct omap_mpuio_s *s, int line, qemu_irq handler)
2788 {
2789 if (line >= 16 || line < 0)
2790 hw_error("%s: No GPIO line %i\n", __FUNCTION__, line);
2791 s->handler[line] = handler;
2792 }
2793
2794 void omap_mpuio_key(struct omap_mpuio_s *s, int row, int col, int down)
2795 {
2796 if (row >= 5 || row < 0)
2797 hw_error("%s: No key %i-%i\n", __FUNCTION__, col, row);
2798
2799 if (down)
2800 s->buttons[row] |= 1 << col;
2801 else
2802 s->buttons[row] &= ~(1 << col);
2803
2804 omap_mpuio_kbd_update(s);
2805 }
2806
2807 /* General-Purpose I/O */
2808 struct omap_gpio_s {
2809 qemu_irq irq;
2810 qemu_irq *in;
2811 qemu_irq handler[16];
2812
2813 uint16_t inputs;
2814 uint16_t outputs;
2815 uint16_t dir;
2816 uint16_t edge;
2817 uint16_t mask;
2818 uint16_t ints;
2819 uint16_t pins;
2820 };
2821
2822 static void omap_gpio_set(void *opaque, int line, int level)
2823 {
2824 struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
2825 uint16_t prev = s->inputs;
2826
2827 if (level)
2828 s->inputs |= 1 << line;
2829 else
2830 s->inputs &= ~(1 << line);
2831
2832 if (((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) &
2833 (1 << line) & s->dir & ~s->mask) {
2834 s->ints |= 1 << line;
2835 qemu_irq_raise(s->irq);
2836 }
2837 }
2838
2839 static uint32_t omap_gpio_read(void *opaque, target_phys_addr_t addr)
2840 {
2841 struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
2842 int offset = addr & OMAP_MPUI_REG_MASK;
2843
2844 switch (offset) {
2845 case 0x00: /* DATA_INPUT */
2846 return s->inputs & s->pins;
2847
2848 case 0x04: /* DATA_OUTPUT */
2849 return s->outputs;
2850
2851 case 0x08: /* DIRECTION_CONTROL */
2852 return s->dir;
2853
2854 case 0x0c: /* INTERRUPT_CONTROL */
2855 return s->edge;
2856
2857 case 0x10: /* INTERRUPT_MASK */
2858 return s->mask;
2859
2860 case 0x14: /* INTERRUPT_STATUS */
2861 return s->ints;
2862
2863 case 0x18: /* PIN_CONTROL (not in OMAP310) */
2864 OMAP_BAD_REG(addr);
2865 return s->pins;
2866 }
2867
2868 OMAP_BAD_REG(addr);
2869 return 0;
2870 }
2871
2872 static void omap_gpio_write(void *opaque, target_phys_addr_t addr,
2873 uint32_t value)
2874 {
2875 struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
2876 int offset = addr & OMAP_MPUI_REG_MASK;
2877 uint16_t diff;
2878 int ln;
2879
2880 switch (offset) {
2881 case 0x00: /* DATA_INPUT */
2882 OMAP_RO_REG(addr);
2883 return;
2884
2885 case 0x04: /* DATA_OUTPUT */
2886 diff = (s->outputs ^ value) & ~s->dir;
2887 s->outputs = value;
2888 while ((ln = ffs(diff))) {
2889 ln --;
2890 if (s->handler[ln])
2891 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
2892 diff &= ~(1 << ln);
2893 }
2894 break;
2895
2896 case 0x08: /* DIRECTION_CONTROL */
2897 diff = s->outputs & (s->dir ^ value);
2898 s->dir = value;
2899
2900 value = s->outputs & ~s->dir;
2901 while ((ln = ffs(diff))) {
2902 ln --;
2903 if (s->handler[ln])
2904 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
2905 diff &= ~(1 << ln);
2906 }
2907 break;
2908
2909 case 0x0c: /* INTERRUPT_CONTROL */
2910 s->edge = value;
2911 break;
2912
2913 case 0x10: /* INTERRUPT_MASK */
2914 s->mask = value;
2915 break;
2916
2917 case 0x14: /* INTERRUPT_STATUS */
2918 s->ints &= ~value;
2919 if (!s->ints)
2920 qemu_irq_lower(s->irq);
2921 break;
2922
2923 case 0x18: /* PIN_CONTROL (not in OMAP310 TRM) */
2924 OMAP_BAD_REG(addr);
2925 s->pins = value;
2926 break;
2927
2928 default:
2929 OMAP_BAD_REG(addr);
2930 return;
2931 }
2932 }
2933
2934 /* *Some* sources say the memory region is 32-bit. */
2935 static CPUReadMemoryFunc * const omap_gpio_readfn[] = {
2936 omap_badwidth_read16,
2937 omap_gpio_read,
2938 omap_badwidth_read16,
2939 };
2940
2941 static CPUWriteMemoryFunc * const omap_gpio_writefn[] = {
2942 omap_badwidth_write16,
2943 omap_gpio_write,
2944 omap_badwidth_write16,
2945 };
2946
2947 static void omap_gpio_reset(struct omap_gpio_s *s)
2948 {
2949 s->inputs = 0;
2950 s->outputs = ~0;
2951 s->dir = ~0;
2952 s->edge = ~0;
2953 s->mask = ~0;
2954 s->ints = 0;
2955 s->pins = ~0;
2956 }
2957
2958 struct omap_gpio_s *omap_gpio_init(target_phys_addr_t base,
2959 qemu_irq irq, omap_clk clk)
2960 {
2961 int iomemtype;
2962 struct omap_gpio_s *s = (struct omap_gpio_s *)
2963 qemu_mallocz(sizeof(struct omap_gpio_s));
2964
2965 s->irq = irq;
2966 s->in = qemu_allocate_irqs(omap_gpio_set, s, 16);
2967 omap_gpio_reset(s);
2968
2969 iomemtype = cpu_register_io_memory(omap_gpio_readfn,
2970 omap_gpio_writefn, s);
2971 cpu_register_physical_memory(base, 0x1000, iomemtype);
2972
2973 return s;
2974 }
2975
2976 qemu_irq *omap_gpio_in_get(struct omap_gpio_s *s)
2977 {
2978 return s->in;
2979 }
2980
2981 void omap_gpio_out_set(struct omap_gpio_s *s, int line, qemu_irq handler)
2982 {
2983 if (line >= 16 || line < 0)
2984 hw_error("%s: No GPIO line %i\n", __FUNCTION__, line);
2985 s->handler[line] = handler;
2986 }
2987
2988 /* MicroWire Interface */
2989 struct omap_uwire_s {
2990 qemu_irq txirq;
2991 qemu_irq rxirq;
2992 qemu_irq txdrq;
2993
2994 uint16_t txbuf;
2995 uint16_t rxbuf;
2996 uint16_t control;
2997 uint16_t setup[5];
2998
2999 uWireSlave *chip[4];
3000 };
3001
3002 static void omap_uwire_transfer_start(struct omap_uwire_s *s)
3003 {
3004 int chipselect = (s->control >> 10) & 3; /* INDEX */
3005 uWireSlave *slave = s->chip[chipselect];
3006
3007 if ((s->control >> 5) & 0x1f) { /* NB_BITS_WR */
3008 if (s->control & (1 << 12)) /* CS_CMD */
3009 if (slave && slave->send)
3010 slave->send(slave->opaque,
3011 s->txbuf >> (16 - ((s->control >> 5) & 0x1f)));
3012 s->control &= ~(1 << 14); /* CSRB */
3013 /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or
3014 * a DRQ. When is the level IRQ supposed to be reset? */
3015 }
3016
3017 if ((s->control >> 0) & 0x1f) { /* NB_BITS_RD */
3018 if (s->control & (1 << 12)) /* CS_CMD */
3019 if (slave && slave->receive)
3020 s->rxbuf = slave->receive(slave->opaque);
3021 s->control |= 1 << 15; /* RDRB */
3022 /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or
3023 * a DRQ. When is the level IRQ supposed to be reset? */
3024 }
3025 }
3026
3027 static uint32_t omap_uwire_read(void *opaque, target_phys_addr_t addr)
3028 {
3029 struct omap_uwire_s *s = (struct omap_uwire_s *) opaque;
3030 int offset = addr & OMAP_MPUI_REG_MASK;
3031
3032 switch (offset) {
3033 case 0x00: /* RDR */
3034 s->control &= ~(1 << 15); /* RDRB */
3035 return s->rxbuf;
3036
3037 case 0x04: /* CSR */
3038 return s->control;
3039
3040 case 0x08: /* SR1 */
3041 return s->setup[0];
3042 case 0x0c: /* SR2 */
3043 return s->setup[1];
3044 case 0x10: /* SR3 */
3045 return s->setup[2];
3046 case 0x14: /* SR4 */
3047 return s->setup[3];
3048 case 0x18: /* SR5 */
3049 return s->setup[4];
3050 }
3051
3052 OMAP_BAD_REG(addr);
3053 return 0;
3054 }
3055
3056 static void omap_uwire_write(void *opaque, target_phys_addr_t addr,
3057 uint32_t value)
3058 {
3059 struct omap_uwire_s *s = (struct omap_uwire_s *) opaque;
3060 int offset = addr & OMAP_MPUI_REG_MASK;
3061
3062 switch (offset) {
3063 case 0x00: /* TDR */
3064 s->txbuf = value; /* TD */
3065 if ((s->setup[4] & (1 << 2)) && /* AUTO_TX_EN */
3066 ((s->setup[4] & (1 << 3)) || /* CS_TOGGLE_TX_EN */
3067 (s->control & (1 << 12)))) { /* CS_CMD */
3068 s->control |= 1 << 14; /* CSRB */
3069 omap_uwire_transfer_start(s);
3070 }
3071 break;
3072
3073 case 0x04: /* CSR */
3074 s->control = value & 0x1fff;
3075 if (value & (1 << 13)) /* START */
3076 omap_uwire_transfer_start(s);
3077 break;
3078
3079 case 0x08: /* SR1 */
3080 s->setup[0] = value & 0x003f;
3081 break;
3082
3083 case 0x0c: /* SR2 */
3084 s->setup[1] = value & 0x0fc0;
3085 break;
3086
3087 case 0x10: /* SR3 */
3088 s->setup[2] = value & 0x0003;
3089 break;
3090
3091 case 0x14: /* SR4 */
3092 s->setup[3] = value & 0x0001;
3093 break;
3094
3095 case 0x18: /* SR5 */
3096 s->setup[4] = value & 0x000f;
3097 break;
3098
3099 default:
3100 OMAP_BAD_REG(addr);
3101 return;
3102 }
3103 }
3104
3105 static CPUReadMemoryFunc * const omap_uwire_readfn[] = {
3106 omap_badwidth_read16,
3107 omap_uwire_read,
3108 omap_badwidth_read16,
3109 };
3110
3111 static CPUWriteMemoryFunc * const omap_uwire_writefn[] = {
3112 omap_badwidth_write16,
3113 omap_uwire_write,
3114 omap_badwidth_write16,
3115 };
3116
3117 static void omap_uwire_reset(struct omap_uwire_s *s)
3118 {
3119 s->control = 0;
3120 s->setup[0] = 0;
3121 s->setup[1] = 0;
3122 s->setup[2] = 0;
3123 s->setup[3] = 0;
3124 s->setup[4] = 0;
3125 }
3126
3127 struct omap_uwire_s *omap_uwire_init(target_phys_addr_t base,
3128 qemu_irq *irq, qemu_irq dma, omap_clk clk)
3129 {
3130 int iomemtype;
3131 struct omap_uwire_s *s = (struct omap_uwire_s *)
3132 qemu_mallocz(sizeof(struct omap_uwire_s));
3133
3134 s->txirq = irq[0];
3135 s->rxirq = irq[1];
3136 s->txdrq = dma;
3137 omap_uwire_reset(s);
3138
3139 iomemtype = cpu_register_io_memory(omap_uwire_readfn,
3140 omap_uwire_writefn, s);
3141 cpu_register_physical_memory(base, 0x800, iomemtype);
3142
3143 return s;
3144 }
3145
3146 void omap_uwire_attach(struct omap_uwire_s *s,
3147 uWireSlave *slave, int chipselect)
3148 {
3149 if (chipselect < 0 || chipselect > 3) {
3150 fprintf(stderr, "%s: Bad chipselect %i\n", __FUNCTION__, chipselect);
3151 exit(-1);
3152 }
3153
3154 s->chip[chipselect] = slave;
3155 }
3156
3157 /* Pseudonoise Pulse-Width Light Modulator */
3158 static void omap_pwl_update(struct omap_mpu_state_s *s)
3159 {
3160 int output = (s->pwl.clk && s->pwl.enable) ? s->pwl.level : 0;
3161
3162 if (output != s->pwl.output) {
3163 s->pwl.output = output;
3164 printf("%s: Backlight now at %i/256\n", __FUNCTION__, output);
3165 }
3166 }
3167
3168 static uint32_t omap_pwl_read(void *opaque, target_phys_addr_t addr)
3169 {
3170 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3171 int offset = addr & OMAP_MPUI_REG_MASK;
3172
3173 switch (offset) {
3174 case 0x00: /* PWL_LEVEL */
3175 return s->pwl.level;
3176 case 0x04: /* PWL_CTRL */
3177 return s->pwl.enable;
3178 }
3179 OMAP_BAD_REG(addr);
3180 return 0;
3181 }
3182
3183 static void omap_pwl_write(void *opaque, target_phys_addr_t addr,
3184 uint32_t value)
3185 {
3186 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3187 int offset = addr & OMAP_MPUI_REG_MASK;
3188
3189 switch (offset) {
3190 case 0x00: /* PWL_LEVEL */
3191 s->pwl.level = value;
3192 omap_pwl_update(s);
3193 break;
3194 case 0x04: /* PWL_CTRL */
3195 s->pwl.enable = value & 1;
3196 omap_pwl_update(s);
3197 break;
3198 default:
3199 OMAP_BAD_REG(addr);
3200 return;
3201 }
3202 }
3203
3204 static CPUReadMemoryFunc * const omap_pwl_readfn[] = {
3205 omap_pwl_read,
3206 omap_badwidth_read8,
3207 omap_badwidth_read8,
3208 };
3209
3210 static CPUWriteMemoryFunc * const omap_pwl_writefn[] = {
3211 omap_pwl_write,
3212 omap_badwidth_write8,
3213 omap_badwidth_write8,
3214 };
3215
3216 static void omap_pwl_reset(struct omap_mpu_state_s *s)
3217 {
3218 s->pwl.output = 0;
3219 s->pwl.level = 0;
3220 s->pwl.enable = 0;
3221 s->pwl.clk = 1;
3222 omap_pwl_update(s);
3223 }
3224
3225 static void omap_pwl_clk_update(void *opaque, int line, int on)
3226 {
3227 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3228
3229 s->pwl.clk = on;
3230 omap_pwl_update(s);
3231 }
3232
3233 static void omap_pwl_init(target_phys_addr_t base, struct omap_mpu_state_s *s,
3234 omap_clk clk)
3235 {
3236 int iomemtype;
3237
3238 omap_pwl_reset(s);
3239
3240 iomemtype = cpu_register_io_memory(omap_pwl_readfn,
3241 omap_pwl_writefn, s);
3242 cpu_register_physical_memory(base, 0x800, iomemtype);
3243
3244 omap_clk_adduser(clk, qemu_allocate_irqs(omap_pwl_clk_update, s, 1)[0]);
3245 }
3246
3247 /* Pulse-Width Tone module */
3248 static uint32_t omap_pwt_read(void *opaque, target_phys_addr_t addr)
3249 {
3250 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3251 int offset = addr & OMAP_MPUI_REG_MASK;
3252
3253 switch (offset) {
3254 case 0x00: /* FRC */
3255 return s->pwt.frc;
3256 case 0x04: /* VCR */
3257 return s->pwt.vrc;
3258 case 0x08: /* GCR */
3259 return s->pwt.gcr;
3260 }
3261 OMAP_BAD_REG(addr);
3262 return 0;
3263 }
3264
3265 static void omap_pwt_write(void *opaque, target_phys_addr_t addr,
3266 uint32_t value)
3267 {
3268 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3269 int offset = addr & OMAP_MPUI_REG_MASK;
3270
3271 switch (offset) {
3272 case 0x00: /* FRC */
3273 s->pwt.frc = value & 0x3f;
3274 break;
3275 case 0x04: /* VRC */
3276 if ((value ^ s->pwt.vrc) & 1) {
3277 if (value & 1)
3278 printf("%s: %iHz buzz on\n", __FUNCTION__, (int)
3279 /* 1.5 MHz from a 12-MHz or 13-MHz PWT_CLK */
3280 ((omap_clk_getrate(s->pwt.clk) >> 3) /
3281 /* Pre-multiplexer divider */
3282 ((s->pwt.gcr & 2) ? 1 : 154) /
3283 /* Octave multiplexer */
3284 (2 << (value & 3)) *
3285 /* 101/107 divider */
3286 ((value & (1 << 2)) ? 101 : 107) *
3287 /* 49/55 divider */
3288 ((value & (1 << 3)) ? 49 : 55) *
3289 /* 50/63 divider */
3290 ((value & (1 << 4)) ? 50 : 63) *
3291 /* 80/127 divider */
3292 ((value & (1 << 5)) ? 80 : 127) /
3293 (107 * 55 * 63 * 127)));
3294 else
3295 printf("%s: silence!\n", __FUNCTION__);
3296 }
3297 s->pwt.vrc = value & 0x7f;
3298 break;
3299 case 0x08: /* GCR */
3300 s->pwt.gcr = value & 3;
3301 break;
3302 default:
3303 OMAP_BAD_REG(addr);
3304 return;
3305 }
3306 }
3307
3308 static CPUReadMemoryFunc * const omap_pwt_readfn[] = {
3309 omap_pwt_read,
3310 omap_badwidth_read8,
3311 omap_badwidth_read8,
3312 };
3313
3314 static CPUWriteMemoryFunc * const omap_pwt_writefn[] = {
3315 omap_pwt_write,
3316 omap_badwidth_write8,
3317 omap_badwidth_write8,
3318 };
3319
3320 static void omap_pwt_reset(struct omap_mpu_state_s *s)
3321 {
3322 s->pwt.frc = 0;
3323 s->pwt.vrc = 0;
3324 s->pwt.gcr = 0;
3325 }
3326
3327 static void omap_pwt_init(target_phys_addr_t base, struct omap_mpu_state_s *s,
3328 omap_clk clk)
3329 {
3330 int iomemtype;
3331
3332 s->pwt.clk = clk;
3333 omap_pwt_reset(s);
3334
3335 iomemtype = cpu_register_io_memory(omap_pwt_readfn,
3336 omap_pwt_writefn, s);
3337 cpu_register_physical_memory(base, 0x800, iomemtype);
3338 }
3339
3340 /* Real-time Clock module */
3341 struct omap_rtc_s {
3342 qemu_irq irq;
3343 qemu_irq alarm;
3344 QEMUTimer *clk;
3345
3346 uint8_t interrupts;
3347 uint8_t status;
3348 int16_t comp_reg;
3349 int running;
3350 int pm_am;
3351 int auto_comp;
3352 int round;
3353 struct tm alarm_tm;
3354 time_t alarm_ti;
3355
3356 struct tm current_tm;
3357 time_t ti;
3358 uint64_t tick;
3359 };
3360
3361 static void omap_rtc_interrupts_update(struct omap_rtc_s *s)
3362 {
3363 /* s->alarm is level-triggered */
3364 qemu_set_irq(s->alarm, (s->status >> 6) & 1);
3365 }
3366
3367 static void omap_rtc_alarm_update(struct omap_rtc_s *s)
3368 {
3369 s->alarm_ti = mktimegm(&s->alarm_tm);
3370 if (s->alarm_ti == -1)
3371 printf("%s: conversion failed\n", __FUNCTION__);
3372 }
3373
3374 static uint32_t omap_rtc_read(void *opaque, target_phys_addr_t addr)
3375 {
3376 struct omap_rtc_s *s = (struct omap_rtc_s *) opaque;
3377 int offset = addr & OMAP_MPUI_REG_MASK;
3378 uint8_t i;
3379
3380 switch (offset) {
3381 case 0x00: /* SECONDS_REG */
3382 return to_bcd(s->current_tm.tm_sec);
3383
3384 case 0x04: /* MINUTES_REG */
3385 return to_bcd(s->current_tm.tm_min);
3386
3387 case 0x08: /* HOURS_REG */
3388 if (s->pm_am)
3389 return ((s->current_tm.tm_hour > 11) << 7) |
3390 to_bcd(((s->current_tm.tm_hour - 1) % 12) + 1);
3391 else
3392 return to_bcd(s->current_tm.tm_hour);
3393
3394 case 0x0c: /* DAYS_REG */
3395 return to_bcd(s->current_tm.tm_mday);
3396
3397 case 0x10: /* MONTHS_REG */
3398 return to_bcd(s->current_tm.tm_mon + 1);
3399
3400 case 0x14: /* YEARS_REG */
3401 return to_bcd(s->current_tm.tm_year % 100);
3402
3403 case 0x18: /* WEEK_REG */
3404 return s->current_tm.tm_wday;
3405
3406 case 0x20: /* ALARM_SECONDS_REG */
3407 return to_bcd(s->alarm_tm.tm_sec);
3408
3409 case 0x24: /* ALARM_MINUTES_REG */
3410 return to_bcd(s->alarm_tm.tm_min);
3411
3412 case 0x28: /* ALARM_HOURS_REG */
3413 if (s->pm_am)
3414 return ((s->alarm_tm.tm_hour > 11) << 7) |
3415 to_bcd(((s->alarm_tm.tm_hour - 1) % 12) + 1);
3416 else
3417 return to_bcd(s->alarm_tm.tm_hour);
3418
3419 case 0x2c: /* ALARM_DAYS_REG */
3420 return to_bcd(s->alarm_tm.tm_mday);
3421
3422 case 0x30: /* ALARM_MONTHS_REG */
3423 return to_bcd(s->alarm_tm.tm_mon + 1);
3424
3425 case 0x34: /* ALARM_YEARS_REG */
3426 return to_bcd(s->alarm_tm.tm_year % 100);
3427
3428 case 0x40: /* RTC_CTRL_REG */
3429 return (s->pm_am << 3) | (s->auto_comp << 2) |
3430 (s->round << 1) | s->running;
3431
3432 case 0x44: /* RTC_STATUS_REG */
3433 i = s->status;
3434 s->status &= ~0x3d;
3435 return i;
3436
3437 case 0x48: /* RTC_INTERRUPTS_REG */
3438 return s->interrupts;
3439
3440 case 0x4c: /* RTC_COMP_LSB_REG */
3441 return ((uint16_t) s->comp_reg) & 0xff;
3442
3443 case 0x50: /* RTC_COMP_MSB_REG */
3444 return ((uint16_t) s->comp_reg) >> 8;
3445 }
3446
3447 OMAP_BAD_REG(addr);
3448 return 0;
3449 }
3450
3451 static void omap_rtc_write(void *opaque, target_phys_addr_t addr,
3452 uint32_t value)
3453 {
3454 struct omap_rtc_s *s = (struct omap_rtc_s *) opaque;
3455 int offset = addr & OMAP_MPUI_REG_MASK;
3456 struct tm new_tm;
3457 time_t ti[2];
3458
3459 switch (offset) {
3460 case 0x00: /* SECONDS_REG */
3461 #ifdef ALMDEBUG
3462 printf("RTC SEC_REG <-- %02x\n", value);
3463 #endif
3464 s->ti -= s->current_tm.tm_sec;
3465 s->ti += from_bcd(value);
3466 return;
3467
3468 case 0x04: /* MINUTES_REG */
3469 #ifdef ALMDEBUG
3470 printf("RTC MIN_REG <-- %02x\n", value);
3471 #endif
3472 s->ti -= s->current_tm.tm_min * 60;
3473 s->ti += from_bcd(value) * 60;
3474 return;
3475
3476 case 0x08: /* HOURS_REG */
3477 #ifdef ALMDEBUG
3478 printf("RTC HRS_REG <-- %02x\n", value);
3479 #endif
3480 s->ti -= s->current_tm.tm_hour * 3600;
3481 if (s->pm_am) {
3482 s->ti += (from_bcd(value & 0x3f) & 12) * 3600;
3483 s->ti += ((value >> 7) & 1) * 43200;
3484 } else
3485 s->ti += from_bcd(value & 0x3f) * 3600;
3486 return;
3487
3488 case 0x0c: /* DAYS_REG */
3489 #ifdef ALMDEBUG
3490 printf("RTC DAY_REG <-- %02x\n", value);
3491 #endif
3492 s->ti -= s->current_tm.tm_mday * 86400;
3493 s->ti += from_bcd(value) * 86400;
3494 return;
3495
3496 case 0x10: /* MONTHS_REG */
3497 #ifdef ALMDEBUG
3498 printf("RTC MTH_REG <-- %02x\n", value);
3499 #endif
3500 memcpy(&new_tm, &s->current_tm, sizeof(new_tm));
3501 new_tm.tm_mon = from_bcd(value);
3502 ti[0] = mktimegm(&s->current_tm);
3503 ti[1] = mktimegm(&new_tm);
3504
3505 if (ti[0] != -1 && ti[1] != -1) {
3506 s->ti -= ti[0];
3507 s->ti += ti[1];
3508 } else {
3509 /* A less accurate version */
3510 s->ti -= s->current_tm.tm_mon * 2592000;
3511 s->ti += from_bcd(value) * 2592000;
3512 }
3513 return;
3514
3515 case 0x14: /* YEARS_REG */
3516 #ifdef ALMDEBUG
3517 printf("RTC YRS_REG <-- %02x\n", value);
3518 #endif
3519 memcpy(&new_tm, &s->current_tm, sizeof(new_tm));
3520 new_tm.tm_year += from_bcd(value) - (new_tm.tm_year % 100);
3521 ti[0] = mktimegm(&s->current_tm);
3522 ti[1] = mktimegm(&new_tm);
3523
3524 if (ti[0] != -1 && ti[1] != -1) {
3525 s->ti -= ti[0];
3526 s->ti += ti[1];
3527 } else {
3528 /* A less accurate version */
3529 s->ti -= (s->current_tm.tm_year % 100) * 31536000;
3530 s->ti += from_bcd(value) * 31536000;
3531 }
3532 return;
3533
3534 case 0x18: /* WEEK_REG */
3535 return; /* Ignored */
3536
3537 case 0x20: /* ALARM_SECONDS_REG */
3538 #ifdef ALMDEBUG
3539 printf("ALM SEC_REG <-- %02x\n", value);
3540 #endif
3541 s->alarm_tm.tm_sec = from_bcd(value);
3542 omap_rtc_alarm_update(s);
3543 return;
3544
3545 case 0x24: /* ALARM_MINUTES_REG */
3546 #ifdef ALMDEBUG
3547 printf("ALM MIN_REG <-- %02x\n", value);
3548 #endif
3549 s->alarm_tm.tm_min = from_bcd(value);
3550 omap_rtc_alarm_update(s);
3551 return;
3552
3553 case 0x28: /* ALARM_HOURS_REG */
3554 #ifdef ALMDEBUG
3555 printf("ALM HRS_REG <-- %02x\n", value);
3556 #endif
3557 if (s->pm_am)
3558 s->alarm_tm.tm_hour =
3559 ((from_bcd(value & 0x3f)) % 12) +
3560 ((value >> 7) & 1) * 12;
3561 else
3562 s->alarm_tm.tm_hour = from_bcd(value);
3563 omap_rtc_alarm_update(s);
3564 return;
3565
3566 case 0x2c: /* ALARM_DAYS_REG */
3567 #ifdef ALMDEBUG
3568 printf("ALM DAY_REG <-- %02x\n", value);
3569 #endif
3570 s->alarm_tm.tm_mday = from_bcd(value);
3571 omap_rtc_alarm_update(s);
3572 return;
3573
3574 case 0x30: /* ALARM_MONTHS_REG */
3575 #ifdef ALMDEBUG
3576 printf("ALM MON_REG <-- %02x\n", value);
3577 #endif
3578 s->alarm_tm.tm_mon = from_bcd(value);
3579 omap_rtc_alarm_update(s);
3580 return;
3581
3582 case 0x34: /* ALARM_YEARS_REG */
3583 #ifdef ALMDEBUG
3584 printf("ALM YRS_REG <-- %02x\n", value);
3585 #endif
3586 s->alarm_tm.tm_year = from_bcd(value);
3587 omap_rtc_alarm_update(s);
3588 return;
3589
3590 case 0x40: /* RTC_CTRL_REG */
3591 #ifdef ALMDEBUG
3592 printf("RTC CONTROL <-- %02x\n", value);
3593 #endif
3594 s->pm_am = (value >> 3) & 1;
3595 s->auto_comp = (value >> 2) & 1;
3596 s->round = (value >> 1) & 1;
3597 s->running = value & 1;
3598 s->status &= 0xfd;
3599 s->status |= s->running << 1;
3600 return;
3601
3602 case 0x44: /* RTC_STATUS_REG */
3603 #ifdef ALMDEBUG
3604 printf("RTC STATUSL <-- %02x\n", value);
3605 #endif
3606 s->status &= ~((value & 0xc0) ^ 0x80);
3607 omap_rtc_interrupts_update(s);
3608 return;
3609
3610 case 0x48: /* RTC_INTERRUPTS_REG */
3611 #ifdef ALMDEBUG
3612 printf("RTC INTRS <-- %02x\n", value);
3613 #endif
3614 s->interrupts = value;
3615 return;
3616
3617 case 0x4c: /* RTC_COMP_LSB_REG */
3618 #ifdef ALMDEBUG
3619 printf("RTC COMPLSB <-- %02x\n", value);
3620 #endif
3621 s->comp_reg &= 0xff00;
3622 s->comp_reg |= 0x00ff & value;
3623 return;
3624
3625 case 0x50: /* RTC_COMP_MSB_REG */
3626 #ifdef ALMDEBUG
3627 printf("RTC COMPMSB <-- %02x\n", value);
3628 #endif
3629 s->comp_reg &= 0x00ff;
3630 s->comp_reg |= 0xff00 & (value << 8);
3631 return;
3632
3633 default:
3634 OMAP_BAD_REG(addr);
3635 return;
3636 }
3637 }
3638
3639 static CPUReadMemoryFunc * const omap_rtc_readfn[] = {
3640 omap_rtc_read,
3641 omap_badwidth_read8,
3642 omap_badwidth_read8,
3643 };
3644
3645 static CPUWriteMemoryFunc * const omap_rtc_writefn[] = {
3646 omap_rtc_write,
3647 omap_badwidth_write8,
3648 omap_badwidth_write8,
3649 };
3650
3651 static void omap_rtc_tick(void *opaque)
3652 {
3653 struct omap_rtc_s *s = opaque;
3654
3655 if (s->round) {
3656 /* Round to nearest full minute. */
3657 if (s->current_tm.tm_sec < 30)
3658 s->ti -= s->current_tm.tm_sec;
3659 else
3660 s->ti += 60 - s->current_tm.tm_sec;
3661
3662 s->round = 0;
3663 }
3664
3665 memcpy(&s->current_tm, localtime(&s->ti), sizeof(s->current_tm));
3666
3667 if ((s->interrupts & 0x08) && s->ti == s->alarm_ti) {
3668 s->status |= 0x40;
3669 omap_rtc_interrupts_update(s);
3670 }
3671
3672 if (s->interrupts & 0x04)
3673 switch (s->interrupts & 3) {
3674 case 0:
3675 s->status |= 0x04;
3676 qemu_irq_pulse(s->irq);
3677 break;
3678 case 1:
3679 if (s->current_tm.tm_sec)
3680 break;
3681 s->status |= 0x08;
3682 qemu_irq_pulse(s->irq);
3683 break;
3684 case 2:
3685 if (s->current_tm.tm_sec || s->current_tm.tm_min)
3686 break;
3687 s->status |= 0x10;
3688 qemu_irq_pulse(s->irq);
3689 break;
3690 case 3:
3691 if (s->current_tm.tm_sec ||
3692 s->current_tm.tm_min || s->current_tm.tm_hour)
3693 break;
3694 s->status |= 0x20;
3695 qemu_irq_pulse(s->irq);
3696 break;
3697 }
3698
3699 /* Move on */
3700 if (s->running)
3701 s->ti ++;
3702 s->tick += 1000;
3703
3704 /*
3705 * Every full hour add a rough approximation of the compensation
3706 * register to the 32kHz Timer (which drives the RTC) value.
3707 */
3708 if (s->auto_comp && !s->current_tm.tm_sec && !s->current_tm.tm_min)
3709 s->tick += s->comp_reg * 1000 / 32768;
3710
3711 qemu_mod_timer(s->clk, s->tick);
3712 }
3713
3714 static void omap_rtc_reset(struct omap_rtc_s *s)
3715 {
3716 struct tm tm;
3717
3718 s->interrupts = 0;
3719 s->comp_reg = 0;
3720 s->running = 0;
3721 s->pm_am = 0;
3722 s->auto_comp = 0;
3723 s->round = 0;
3724 s->tick = qemu_get_clock(rt_clock);
3725 memset(&s->alarm_tm, 0, sizeof(s->alarm_tm));
3726 s->alarm_tm.tm_mday = 0x01;
3727 s->status = 1 << 7;
3728 qemu_get_timedate(&tm, 0);
3729 s->ti = mktimegm(&tm);
3730
3731 omap_rtc_alarm_update(s);
3732 omap_rtc_tick(s);
3733 }
3734
3735 struct omap_rtc_s *omap_rtc_init(target_phys_addr_t base,
3736 qemu_irq *irq, omap_clk clk)
3737 {
3738 int iomemtype;
3739 struct omap_rtc_s *s = (struct omap_rtc_s *)
3740 qemu_mallocz(sizeof(struct omap_rtc_s));
3741
3742 s->irq = irq[0];
3743 s->alarm = irq[1];
3744 s->clk = qemu_new_timer(rt_clock, omap_rtc_tick, s);
3745
3746 omap_rtc_reset(s);
3747
3748 iomemtype = cpu_register_io_memory(omap_rtc_readfn,
3749 omap_rtc_writefn, s);
3750 cpu_register_physical_memory(base, 0x800, iomemtype);
3751
3752 return s;
3753 }
3754
3755 /* Multi-channel Buffered Serial Port interfaces */
3756 struct omap_mcbsp_s {
3757 qemu_irq txirq;
3758 qemu_irq rxirq;
3759 qemu_irq txdrq;
3760 qemu_irq rxdrq;
3761
3762 uint16_t spcr[2];
3763 uint16_t rcr[2];
3764 uint16_t xcr[2];
3765 uint16_t srgr[2];
3766 uint16_t mcr[2];
3767 uint16_t pcr;
3768 uint16_t rcer[8];
3769 uint16_t xcer[8];
3770 int tx_rate;
3771 int rx_rate;
3772 int tx_req;
3773 int rx_req;
3774
3775 I2SCodec *codec;
3776 QEMUTimer *source_timer;
3777 QEMUTimer *sink_timer;
3778 };
3779
3780 static void omap_mcbsp_intr_update(struct omap_mcbsp_s *s)
3781 {
3782 int irq;
3783
3784 switch ((s->spcr[0] >> 4) & 3) { /* RINTM */
3785 case 0:
3786 irq = (s->spcr[0] >> 1) & 1; /* RRDY */
3787 break;
3788 case 3:
3789 irq = (s->spcr[0] >> 3) & 1; /* RSYNCERR */
3790 break;
3791 default:
3792 irq = 0;
3793 break;
3794 }
3795
3796 if (irq)
3797 qemu_irq_pulse(s->rxirq);
3798
3799 switch ((s->spcr[1] >> 4) & 3) { /* XINTM */
3800 case 0:
3801 irq = (s->spcr[1] >> 1) & 1; /* XRDY */
3802 break;
3803 case 3:
3804 irq = (s->spcr[1] >> 3) & 1; /* XSYNCERR */
3805 break;
3806 default:
3807 irq = 0;
3808 break;
3809 }
3810
3811 if (irq)
3812 qemu_irq_pulse(s->txirq);
3813 }
3814
3815 static void omap_mcbsp_rx_newdata(struct omap_mcbsp_s *s)
3816 {
3817 if ((s->spcr[0] >> 1) & 1) /* RRDY */
3818 s->spcr[0] |= 1 << 2; /* RFULL */
3819 s->spcr[0] |= 1 << 1; /* RRDY */
3820 qemu_irq_raise(s->rxdrq);
3821 omap_mcbsp_intr_update(s);
3822 }
3823
3824 static void omap_mcbsp_source_tick(void *opaque)
3825 {
3826 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
3827 static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 };
3828
3829 if (!s->rx_rate)
3830 return;
3831 if (s->rx_req)
3832 printf("%s: Rx FIFO overrun\n", __FUNCTION__);
3833
3834 s->rx_req = s->rx_rate << bps[(s->rcr[0] >> 5) & 7];
3835
3836 omap_mcbsp_rx_newdata(s);
3837 qemu_mod_timer(s->source_timer, qemu_get_clock(vm_clock) +
3838 get_ticks_per_sec());
3839 }
3840
3841 static void omap_mcbsp_rx_start(struct omap_mcbsp_s *s)
3842 {
3843 if (!s->codec || !s->codec->rts)
3844 omap_mcbsp_source_tick(s);
3845 else if (s->codec->in.len) {
3846 s->rx_req = s->codec->in.len;
3847 omap_mcbsp_rx_newdata(s);
3848 }
3849 }
3850
3851 static void omap_mcbsp_rx_stop(struct omap_mcbsp_s *s)
3852 {
3853 qemu_del_timer(s->source_timer);
3854 }
3855
3856 static void omap_mcbsp_rx_done(struct omap_mcbsp_s *s)
3857 {
3858 s->spcr[0] &= ~(1 << 1); /* RRDY */
3859 qemu_irq_lower(s->rxdrq);
3860 omap_mcbsp_intr_update(s);
3861 }
3862
3863 static void omap_mcbsp_tx_newdata(struct omap_mcbsp_s *s)
3864 {
3865 s->spcr[1] |= 1 << 1; /* XRDY */
3866 qemu_irq_raise(s->txdrq);
3867 omap_mcbsp_intr_update(s);
3868 }
3869
3870 static void omap_mcbsp_sink_tick(void *opaque)
3871 {
3872 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
3873 static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 };
3874
3875 if (!s->tx_rate)
3876 return;
3877 if (s->tx_req)
3878 printf("%s: Tx FIFO underrun\n", __FUNCTION__);
3879
3880 s->tx_req = s->tx_rate << bps[(s->xcr[0] >> 5) & 7];
3881
3882 omap_mcbsp_tx_newdata(s);
3883 qemu_mod_timer(s->sink_timer, qemu_get_clock(vm_clock) +
3884 get_ticks_per_sec());
3885 }
3886
3887 static void omap_mcbsp_tx_start(struct omap_mcbsp_s *s)
3888 {
3889 if (!s->codec || !s->codec->cts)
3890 omap_mcbsp_sink_tick(s);
3891 else if (s->codec->out.size) {
3892 s->tx_req = s->codec->out.size;
3893 omap_mcbsp_tx_newdata(s);
3894 }
3895 }
3896
3897 static void omap_mcbsp_tx_done(struct omap_mcbsp_s *s)
3898 {
3899 s->spcr[1] &= ~(1 << 1); /* XRDY */
3900 qemu_irq_lower(s->txdrq);
3901 omap_mcbsp_intr_update(s);
3902 if (s->codec && s->codec->cts)
3903 s->codec->tx_swallow(s->codec->opaque);
3904 }
3905
3906 static void omap_mcbsp_tx_stop(struct omap_mcbsp_s *s)
3907 {
3908 s->tx_req = 0;
3909 omap_mcbsp_tx_done(s);
3910 qemu_del_timer(s->sink_timer);
3911 }
3912
3913 static void omap_mcbsp_req_update(struct omap_mcbsp_s *s)
3914 {
3915 int prev_rx_rate, prev_tx_rate;
3916 int rx_rate = 0, tx_rate = 0;
3917 int cpu_rate = 1500000; /* XXX */
3918
3919 /* TODO: check CLKSTP bit */
3920 if (s->spcr[1] & (1 << 6)) { /* GRST */
3921 if (s->spcr[0] & (1 << 0)) { /* RRST */
3922 if ((s->srgr[1] & (1 << 13)) && /* CLKSM */
3923 (s->pcr & (1 << 8))) { /* CLKRM */
3924 if (~s->pcr & (1 << 7)) /* SCLKME */
3925 rx_rate = cpu_rate /
3926 ((s->srgr[0] & 0xff) + 1); /* CLKGDV */
3927 } else
3928 if (s->codec)
3929 rx_rate = s->codec->rx_rate;
3930 }
3931
3932 if (s->spcr[1] & (1 << 0)) { /* XRST */
3933 if ((s->srgr[1] & (1 << 13)) && /* CLKSM */
3934 (s->pcr & (1 << 9))) { /* CLKXM */
3935 if (~s->pcr & (1 << 7)) /* SCLKME */
3936 tx_rate = cpu_rate /
3937 ((s->srgr[0] & 0xff) + 1); /* CLKGDV */
3938 } else
3939 if (s->codec)
3940 tx_rate = s->codec->tx_rate;
3941 }
3942 }
3943 prev_tx_rate = s->tx_rate;
3944 prev_rx_rate = s->rx_rate;
3945 s->tx_rate = tx_rate;
3946 s->rx_rate = rx_rate;
3947
3948 if (s->codec)
3949 s->codec->set_rate(s->codec->opaque, rx_rate, tx_rate);
3950
3951 if (!prev_tx_rate && tx_rate)
3952 omap_mcbsp_tx_start(s);
3953 else if (s->tx_rate && !tx_rate)
3954 omap_mcbsp_tx_stop(s);
3955
3956 if (!prev_rx_rate && rx_rate)
3957 omap_mcbsp_rx_start(s);
3958 else if (prev_tx_rate && !tx_rate)
3959 omap_mcbsp_rx_stop(s);
3960 }
3961
3962 static uint32_t omap_mcbsp_read(void *opaque, target_phys_addr_t addr)
3963 {
3964 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
3965 int offset = addr & OMAP_MPUI_REG_MASK;
3966 uint16_t ret;
3967
3968 switch (offset) {
3969 case 0x00: /* DRR2 */
3970 if (((s->rcr[0] >> 5) & 7) < 3) /* RWDLEN1 */
3971 return 0x0000;
3972 /* Fall through. */
3973 case 0x02: /* DRR1 */
3974 if (s->rx_req < 2) {
3975 printf("%s: Rx FIFO underrun\n", __FUNCTION__);
3976 omap_mcbsp_rx_done(s);
3977 } else {
3978 s->tx_req -= 2;
3979 if (s->codec && s->codec->in.len >= 2) {
3980 ret = s->codec->in.fifo[s->codec->in.start ++] << 8;
3981 ret |= s->codec->in.fifo[s->codec->in.start ++];
3982 s->codec->in.len -= 2;
3983 } else
3984 ret = 0x0000;
3985 if (!s->tx_req)
3986 omap_mcbsp_rx_done(s);
3987 return ret;
3988 }
3989 return 0x0000;
3990
3991 case 0x04: /* DXR2 */
3992 case 0x06: /* DXR1 */
3993 return 0x0000;
3994
3995 case 0x08: /* SPCR2 */
3996 return s->spcr[1];
3997 case 0x0a: /* SPCR1 */
3998 return s->spcr[0];
3999 case 0x0c: /* RCR2 */
4000 return s->rcr[1];
4001 case 0x0e: /* RCR1 */
4002 return s->rcr[0];
4003 case 0x10: /* XCR2 */
4004 return s->xcr[1];
4005 case 0x12: /* XCR1 */
4006 return s->xcr[0];
4007 case 0x14: /* SRGR2 */
4008 return s->srgr[1];
4009 case 0x16: /* SRGR1 */
4010 return s->srgr[0];
4011 case 0x18: /* MCR2 */
4012 return s->mcr[1];
4013 case 0x1a: /* MCR1 */
4014 return s->mcr[0];
4015 case 0x1c: /* RCERA */
4016 return s->rcer[0];
4017 case 0x1e: /* RCERB */
4018 return s->rcer[1];
4019 case 0x20: /* XCERA */
4020 return s->xcer[0];
4021 case 0x22: /* XCERB */
4022 return s->xcer[1];
4023 case 0x24: /* PCR0 */
4024 return s->pcr;
4025 case 0x26: /* RCERC */
4026 return s->rcer[2];
4027 case 0x28: /* RCERD */
4028 return s->rcer[3];
4029 case 0x2a: /* XCERC */
4030 return s->xcer[2];
4031 case 0x2c: /* XCERD */
4032 return s->xcer[3];
4033 case 0x2e: /* RCERE */
4034 return s->rcer[4];
4035 case 0x30: /* RCERF */
4036 return s->rcer[5];
4037 case 0x32: /* XCERE */
4038 return s->xcer[4];
4039 case 0x34: /* XCERF */
4040 return s->xcer[5];
4041 case 0x36: /* RCERG */
4042 return s->rcer[6];
4043 case 0x38: /* RCERH */
4044 return s->rcer[7];
4045 case 0x3a: /* XCERG */
4046 return s->xcer[6];
4047 case 0x3c: /* XCERH */
4048 return s->xcer[7];
4049 }
4050
4051 OMAP_BAD_REG(addr);
4052 return 0;
4053 }
4054
4055 static void omap_mcbsp_writeh(void *opaque, target_phys_addr_t addr,
4056 uint32_t value)
4057 {
4058 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4059 int offset = addr & OMAP_MPUI_REG_MASK;
4060
4061 switch (offset) {
4062 case 0x00: /* DRR2 */
4063 case 0x02: /* DRR1 */
4064 OMAP_RO_REG(addr);
4065 return;
4066
4067 case 0x04: /* DXR2 */
4068 if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */
4069 return;
4070 /* Fall through. */
4071 case 0x06: /* DXR1 */
4072 if (s->tx_req > 1) {
4073 s->tx_req -= 2;
4074 if (s->codec && s->codec->cts) {
4075 s->codec->out.fifo[s->codec->out.len ++] = (value >> 8) & 0xff;
4076 s->codec->out.fifo[s->codec->out.len ++] = (value >> 0) & 0xff;
4077 }
4078 if (s->tx_req < 2)
4079 omap_mcbsp_tx_done(s);
4080 } else
4081 printf("%s: Tx FIFO overrun\n", __FUNCTION__);
4082 return;
4083
4084 case 0x08: /* SPCR2 */
4085 s->spcr[1] &= 0x0002;
4086 s->spcr[1] |= 0x03f9 & value;
4087 s->spcr[1] |= 0x0004 & (value << 2); /* XEMPTY := XRST */
4088 if (~value & 1) /* XRST */
4089 s->spcr[1] &= ~6;
4090 omap_mcbsp_req_update(s);
4091 return;
4092 case 0x0a: /* SPCR1 */
4093 s->spcr[0] &= 0x0006;
4094 s->spcr[0] |= 0xf8f9 & value;
4095 if (value & (1 << 15)) /* DLB */
4096 printf("%s: Digital Loopback mode enable attempt\n", __FUNCTION__);
4097 if (~value & 1) { /* RRST */
4098 s->spcr[0] &= ~6;
4099 s->rx_req = 0;
4100 omap_mcbsp_rx_done(s);
4101 }
4102 omap_mcbsp_req_update(s);
4103 return;
4104
4105 case 0x0c: /* RCR2 */
4106 s->rcr[1] = value & 0xffff;
4107 return;
4108 case 0x0e: /* RCR1 */
4109 s->rcr[0] = value & 0x7fe0;
4110 return;
4111 case 0x10: /* XCR2 */
4112 s->xcr[1] = value & 0xffff;
4113 return;
4114 case 0x12: /* XCR1 */
4115 s->xcr[0] = value & 0x7fe0;
4116 return;
4117 case 0x14: /* SRGR2 */
4118 s->srgr[1] = value & 0xffff;
4119 omap_mcbsp_req_update(s);
4120 return;
4121 case 0x16: /* SRGR1 */
4122 s->srgr[0] = value & 0xffff;
4123 omap_mcbsp_req_update(s);
4124 return;
4125 case 0x18: /* MCR2 */
4126 s->mcr[1] = value & 0x03e3;
4127 if (value & 3) /* XMCM */
4128 printf("%s: Tx channel selection mode enable attempt\n",
4129 __FUNCTION__);
4130 return;
4131 case 0x1a: /* MCR1 */
4132 s->mcr[0] = value & 0x03e1;
4133 if (value & 1) /* RMCM */
4134 printf("%s: Rx channel selection mode enable attempt\n",
4135 __FUNCTION__);
4136 return;
4137 case 0x1c: /* RCERA */
4138 s->rcer[0] = value & 0xffff;
4139 return;
4140 case 0x1e: /* RCERB */
4141 s->rcer[1] = value & 0xffff;
4142 return;
4143 case 0x20: /* XCERA */
4144 s->xcer[0] = value & 0xffff;
4145 return;
4146 case 0x22: /* XCERB */
4147 s->xcer[1] = value & 0xffff;
4148 return;
4149 case 0x24: /* PCR0 */
4150 s->pcr = value & 0x7faf;
4151 return;
4152 case 0x26: /* RCERC */
4153 s->rcer[2] = value & 0xffff;
4154 return;
4155 case 0x28: /* RCERD */
4156 s->rcer[3] = value & 0xffff;
4157 return;
4158 case 0x2a: /* XCERC */
4159 s->xcer[2] = value & 0xffff;
4160 return;
4161 case 0x2c: /* XCERD */
4162 s->xcer[3] = value & 0xffff;
4163 return;
4164 case 0x2e: /* RCERE */
4165 s->rcer[4] = value & 0xffff;
4166 return;
4167 case 0x30: /* RCERF */
4168 s->rcer[5] = value & 0xffff;
4169 return;
4170 case 0x32: /* XCERE */
4171 s->xcer[4] = value & 0xffff;
4172 return;
4173 case 0x34: /* XCERF */
4174 s->xcer[5] = value & 0xffff;
4175 return;
4176 case 0x36: /* RCERG */
4177 s->rcer[6] = value & 0xffff;
4178 return;
4179 case 0x38: /* RCERH */
4180 s->rcer[7] = value & 0xffff;
4181 return;
4182 case 0x3a: /* XCERG */
4183 s->xcer[6] = value & 0xffff;
4184 return;
4185 case 0x3c: /* XCERH */
4186 s->xcer[7] = value & 0xffff;
4187 return;
4188 }
4189
4190 OMAP_BAD_REG(addr);
4191 }
4192
4193 static void omap_mcbsp_writew(void *opaque, target_phys_addr_t addr,
4194 uint32_t value)
4195 {
4196 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4197 int offset = addr & OMAP_MPUI_REG_MASK;
4198
4199 if (offset == 0x04) { /* DXR */
4200 if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */
4201 return;
4202 if (s->tx_req > 3) {
4203 s->tx_req -= 4;
4204 if (s->codec && s->codec->cts) {
4205 s->codec->out.fifo[s->codec->out.len ++] =
4206 (value >> 24) & 0xff;
4207 s->codec->out.fifo[s->codec->out.len ++] =
4208 (value >> 16) & 0xff;
4209 s->codec->out.fifo[s->codec->out.len ++] =
4210 (value >> 8) & 0xff;
4211 s->codec->out.fifo[s->codec->out.len ++] =
4212 (value >> 0) & 0xff;
4213 }
4214 if (s->tx_req < 4)
4215 omap_mcbsp_tx_done(s);
4216 } else
4217 printf("%s: Tx FIFO overrun\n", __FUNCTION__);
4218 return;
4219 }
4220
4221 omap_badwidth_write16(opaque, addr, value);
4222 }
4223
4224 static CPUReadMemoryFunc * const omap_mcbsp_readfn[] = {
4225 omap_badwidth_read16,
4226 omap_mcbsp_read,
4227 omap_badwidth_read16,
4228 };
4229
4230 static CPUWriteMemoryFunc * const omap_mcbsp_writefn[] = {
4231 omap_badwidth_write16,
4232 omap_mcbsp_writeh,
4233 omap_mcbsp_writew,
4234 };
4235
4236 static void omap_mcbsp_reset(struct omap_mcbsp_s *s)
4237 {
4238 memset(&s->spcr, 0, sizeof(s->spcr));
4239 memset(&s->rcr, 0, sizeof(s->rcr));
4240 memset(&s->xcr, 0, sizeof(s->xcr));
4241 s->srgr[0] = 0x0001;
4242 s->srgr[1] = 0x2000;
4243 memset(&s->mcr, 0, sizeof(s->mcr));
4244 memset(&s->pcr, 0, sizeof(s->pcr));
4245 memset(&s->rcer, 0, sizeof(s->rcer));
4246 memset(&s->xcer, 0, sizeof(s->xcer));
4247 s->tx_req = 0;
4248 s->rx_req = 0;
4249 s->tx_rate = 0;
4250 s->rx_rate = 0;
4251 qemu_del_timer(s->source_timer);
4252 qemu_del_timer(s->sink_timer);
4253 }
4254
4255 struct omap_mcbsp_s *omap_mcbsp_init(target_phys_addr_t base,
4256 qemu_irq *irq, qemu_irq *dma, omap_clk clk)
4257 {
4258 int iomemtype;
4259 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *)
4260 qemu_mallocz(sizeof(struct omap_mcbsp_s));
4261
4262 s->txirq = irq[0];
4263 s->rxirq = irq[1];
4264 s->txdrq = dma[0];
4265 s->rxdrq = dma[1];
4266 s->sink_timer = qemu_new_timer(vm_clock, omap_mcbsp_sink_tick, s);
4267 s->source_timer = qemu_new_timer(vm_clock, omap_mcbsp_source_tick, s);
4268 omap_mcbsp_reset(s);
4269
4270 iomemtype = cpu_register_io_memory(omap_mcbsp_readfn,
4271 omap_mcbsp_writefn, s);
4272 cpu_register_physical_memory(base, 0x800, iomemtype);
4273
4274 return s;
4275 }
4276
4277 static void omap_mcbsp_i2s_swallow(void *opaque, int line, int level)
4278 {
4279 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4280
4281 if (s->rx_rate) {
4282 s->rx_req = s->codec->in.len;
4283 omap_mcbsp_rx_newdata(s);
4284 }
4285 }
4286
4287 static void omap_mcbsp_i2s_start(void *opaque, int line, int level)
4288 {
4289 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4290
4291 if (s->tx_rate) {
4292 s->tx_req = s->codec->out.size;
4293 omap_mcbsp_tx_newdata(s);
4294 }
4295 }
4296
4297 void omap_mcbsp_i2s_attach(struct omap_mcbsp_s *s, I2SCodec *slave)
4298 {
4299 s->codec = slave;
4300 slave->rx_swallow = qemu_allocate_irqs(omap_mcbsp_i2s_swallow, s, 1)[0];
4301 slave->tx_start = qemu_allocate_irqs(omap_mcbsp_i2s_start, s, 1)[0];
4302 }
4303
4304 /* LED Pulse Generators */
4305 struct omap_lpg_s {
4306 QEMUTimer *tm;
4307
4308 uint8_t control;
4309 uint8_t power;
4310 int64_t on;
4311 int64_t period;
4312 int clk;
4313 int cycle;
4314 };
4315
4316 static void omap_lpg_tick(void *opaque)
4317 {
4318 struct omap_lpg_s *s = opaque;
4319
4320 if (s->cycle)
4321 qemu_mod_timer(s->tm, qemu_get_clock(rt_clock) + s->period - s->on);
4322 else
4323 qemu_mod_timer(s->tm, qemu_get_clock(rt_clock) + s->on);
4324
4325 s->cycle = !s->cycle;
4326 printf("%s: LED is %s\n", __FUNCTION__, s->cycle ? "on" : "off");
4327 }
4328
4329 static void omap_lpg_update(struct omap_lpg_s *s)
4330 {
4331 int64_t on, period = 1, ticks = 1000;
4332 static const int per[8] = { 1, 2, 4, 8, 12, 16, 20, 24 };
4333
4334 if (~s->control & (1 << 6)) /* LPGRES */
4335 on = 0;
4336 else if (s->control & (1 << 7)) /* PERM_ON */
4337 on = period;
4338 else {
4339 period = muldiv64(ticks, per[s->control & 7], /* PERCTRL */
4340 256 / 32);
4341 on = (s->clk && s->power) ? muldiv64(ticks,
4342 per[(s->control >> 3) & 7], 256) : 0; /* ONCTRL */
4343 }
4344
4345 qemu_del_timer(s->tm);
4346 if (on == period && s->on < s->period)
4347 printf("%s: LED is on\n", __FUNCTION__);
4348 else if (on == 0 && s->on)
4349 printf("%s: LED is off\n", __FUNCTION__);
4350 else if (on && (on != s->on || period != s->period)) {
4351 s->cycle = 0;
4352 s->on = on;
4353 s->period = period;
4354 omap_lpg_tick(s);
4355 return;
4356 }
4357
4358 s->on = on;
4359 s->period = period;
4360 }
4361
4362 static void omap_lpg_reset(struct omap_lpg_s *s)
4363 {
4364 s->control = 0x00;
4365 s->power = 0x00;
4366 s->clk = 1;
4367 omap_lpg_update(s);
4368 }
4369
4370 static uint32_t omap_lpg_read(void *opaque, target_phys_addr_t addr)
4371 {
4372 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque;
4373 int offset = addr & OMAP_MPUI_REG_MASK;
4374
4375 switch (offset) {
4376 case 0x00: /* LCR */
4377 return s->control;
4378
4379 case 0x04: /* PMR */
4380 return s->power;
4381 }
4382
4383 OMAP_BAD_REG(addr);
4384 return 0;
4385 }
4386
4387 static void omap_lpg_write(void *opaque, target_phys_addr_t addr,
4388 uint32_t value)
4389 {
4390 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque;
4391 int offset = addr & OMAP_MPUI_REG_MASK;
4392
4393 switch (offset) {
4394 case 0x00: /* LCR */
4395 if (~value & (1 << 6)) /* LPGRES */
4396 omap_lpg_reset(s);
4397 s->control = value & 0xff;
4398 omap_lpg_update(s);
4399 return;
4400
4401 case 0x04: /* PMR */
4402 s->power = value & 0x01;
4403 omap_lpg_update(s);
4404 return;
4405
4406 default:
4407 OMAP_BAD_REG(addr);
4408 return;
4409 }
4410 }
4411
4412 static CPUReadMemoryFunc * const omap_lpg_readfn[] = {
4413 omap_lpg_read,
4414 omap_badwidth_read8,
4415 omap_badwidth_read8,
4416 };
4417
4418 static CPUWriteMemoryFunc * const omap_lpg_writefn[] = {
4419 omap_lpg_write,
4420 omap_badwidth_write8,
4421 omap_badwidth_write8,
4422 };
4423
4424 static void omap_lpg_clk_update(void *opaque, int line, int on)
4425 {
4426 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque;
4427
4428 s->clk = on;
4429 omap_lpg_update(s);
4430 }
4431
4432 struct omap_lpg_s *omap_lpg_init(target_phys_addr_t base, omap_clk clk)
4433 {
4434 int iomemtype;
4435 struct omap_lpg_s *s = (struct omap_lpg_s *)
4436 qemu_mallocz(sizeof(struct omap_lpg_s));
4437
4438 s->tm = qemu_new_timer(rt_clock, omap_lpg_tick, s);
4439
4440 omap_lpg_reset(s);
4441
4442 iomemtype = cpu_register_io_memory(omap_lpg_readfn,
4443 omap_lpg_writefn, s);
4444 cpu_register_physical_memory(base, 0x800, iomemtype);
4445
4446 omap_clk_adduser(clk, qemu_allocate_irqs(omap_lpg_clk_update, s, 1)[0]);
4447
4448 return s;
4449 }
4450
4451 /* MPUI Peripheral Bridge configuration */
4452 static uint32_t omap_mpui_io_read(void *opaque, target_phys_addr_t addr)
4453 {
4454 if (addr == OMAP_MPUI_BASE) /* CMR */
4455 return 0xfe4d;
4456
4457 OMAP_BAD_REG(addr);
4458 return 0;
4459 }
4460
4461 static CPUReadMemoryFunc * const omap_mpui_io_readfn[] = {
4462 omap_badwidth_read16,
4463 omap_mpui_io_read,
4464 omap_badwidth_read16,
4465 };
4466
4467 static CPUWriteMemoryFunc * const omap_mpui_io_writefn[] = {
4468 omap_badwidth_write16,
4469 omap_badwidth_write16,
4470 omap_badwidth_write16,
4471 };
4472
4473 static void omap_setup_mpui_io(struct omap_mpu_state_s *mpu)
4474 {
4475 int iomemtype = cpu_register_io_memory(omap_mpui_io_readfn,
4476 omap_mpui_io_writefn, mpu);
4477 cpu_register_physical_memory(OMAP_MPUI_BASE, 0x7fff, iomemtype);
4478 }
4479
4480 /* General chip reset */
4481 static void omap1_mpu_reset(void *opaque)
4482 {
4483 struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque;
4484
4485 omap_inth_reset(mpu->ih[0]);
4486 omap_inth_reset(mpu->ih[1]);
4487 omap_dma_reset(mpu->dma);
4488 omap_mpu_timer_reset(mpu->timer[0]);
4489 omap_mpu_timer_reset(mpu->timer[1]);
4490 omap_mpu_timer_reset(mpu->timer[2]);
4491 omap_wd_timer_reset(mpu->wdt);
4492 omap_os_timer_reset(mpu->os_timer);
4493 omap_lcdc_reset(mpu->lcd);
4494 omap_ulpd_pm_reset(mpu);
4495 omap_pin_cfg_reset(mpu);
4496 omap_mpui_reset(mpu);
4497 omap_tipb_bridge_reset(mpu->private_tipb);
4498 omap_tipb_bridge_reset(mpu->public_tipb);
4499 omap_dpll_reset(&mpu->dpll[0]);
4500 omap_dpll_reset(&mpu->dpll[1]);
4501 omap_dpll_reset(&mpu->dpll[2]);
4502 omap_uart_reset(mpu->uart[0]);
4503 omap_uart_reset(mpu->uart[1]);
4504 omap_uart_reset(mpu->uart[2]);
4505 omap_mmc_reset(mpu->mmc);
4506 omap_mpuio_reset(mpu->mpuio);
4507 omap_gpio_reset(mpu->gpio);
4508 omap_uwire_reset(mpu->microwire);
4509 omap_pwl_reset(mpu);
4510 omap_pwt_reset(mpu);
4511 omap_i2c_reset(mpu->i2c[0]);
4512 omap_rtc_reset(mpu->rtc);
4513 omap_mcbsp_reset(mpu->mcbsp1);
4514 omap_mcbsp_reset(mpu->mcbsp2);
4515 omap_mcbsp_reset(mpu->mcbsp3);
4516 omap_lpg_reset(mpu->led[0]);
4517 omap_lpg_reset(mpu->led[1]);
4518 omap_clkm_reset(mpu);
4519 cpu_reset(mpu->env);
4520 }
4521
4522 static const struct omap_map_s {
4523 target_phys_addr_t phys_dsp;
4524 target_phys_addr_t phys_mpu;
4525 uint32_t size;
4526 const char *name;
4527 } omap15xx_dsp_mm[] = {
4528 /* Strobe 0 */
4529 { 0xe1010000, 0xfffb0000, 0x800, "UART1 BT" }, /* CS0 */
4530 { 0xe1010800, 0xfffb0800, 0x800, "UART2 COM" }, /* CS1 */
4531 { 0xe1011800, 0xfffb1800, 0x800, "McBSP1 audio" }, /* CS3 */
4532 { 0xe1012000, 0xfffb2000, 0x800, "MCSI2 communication" }, /* CS4 */
4533 { 0xe1012800, 0xfffb2800, 0x800, "MCSI1 BT u-Law" }, /* CS5 */
4534 { 0xe1013000, 0xfffb3000, 0x800, "uWire" }, /* CS6 */
4535 { 0xe1013800, 0xfffb3800, 0x800, "I^2C" }, /* CS7 */
4536 { 0xe1014000, 0xfffb4000, 0x800, "USB W2FC" }, /* CS8 */
4537 { 0xe1014800, 0xfffb4800, 0x800, "RTC" }, /* CS9 */
4538 { 0xe1015000, 0xfffb5000, 0x800, "MPUIO" }, /* CS10 */
4539 { 0xe1015800, 0xfffb5800, 0x800, "PWL" }, /* CS11 */
4540 { 0xe1016000, 0xfffb6000, 0x800, "PWT" }, /* CS12 */
4541 { 0xe1017000, 0xfffb7000, 0x800, "McBSP3" }, /* CS14 */
4542 { 0xe1017800, 0xfffb7800, 0x800, "MMC" }, /* CS15 */
4543 { 0xe1019000, 0xfffb9000, 0x800, "32-kHz timer" }, /* CS18 */
4544 { 0xe1019800, 0xfffb9800, 0x800, "UART3" }, /* CS19 */
4545 { 0xe101c800, 0xfffbc800, 0x800, "TIPB switches" }, /* CS25 */
4546 /* Strobe 1 */
4547 { 0xe101e000, 0xfffce000, 0x800, "GPIOs" }, /* CS28 */
4548
4549 { 0 }
4550 };
4551
4552 static void omap_setup_dsp_mapping(const struct omap_map_s *map)
4553 {
4554 int io;
4555
4556 for (; map->phys_dsp; map ++) {
4557 io = cpu_get_physical_page_desc(map->phys_mpu);
4558
4559 cpu_register_physical_memory(map->phys_dsp, map->size, io);
4560 }
4561 }
4562
4563 void omap_mpu_wakeup(void *opaque, int irq, int req)
4564 {
4565 struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque;
4566
4567 if (mpu->env->halted)
4568 cpu_interrupt(mpu->env, CPU_INTERRUPT_EXITTB);
4569 }
4570
4571 static const struct dma_irq_map omap1_dma_irq_map[] = {
4572 { 0, OMAP_INT_DMA_CH0_6 },
4573 { 0, OMAP_INT_DMA_CH1_7 },
4574 { 0, OMAP_INT_DMA_CH2_8 },
4575 { 0, OMAP_INT_DMA_CH3 },
4576 { 0, OMAP_INT_DMA_CH4 },
4577 { 0, OMAP_INT_DMA_CH5 },
4578 { 1, OMAP_INT_1610_DMA_CH6 },
4579 { 1, OMAP_INT_1610_DMA_CH7 },
4580 { 1, OMAP_INT_1610_DMA_CH8 },
4581 { 1, OMAP_INT_1610_DMA_CH9 },
4582 { 1, OMAP_INT_1610_DMA_CH10 },
4583 { 1, OMAP_INT_1610_DMA_CH11 },
4584 { 1, OMAP_INT_1610_DMA_CH12 },
4585 { 1, OMAP_INT_1610_DMA_CH13 },
4586 { 1, OMAP_INT_1610_DMA_CH14 },
4587 { 1, OMAP_INT_1610_DMA_CH15 }
4588 };
4589
4590 /* DMA ports for OMAP1 */
4591 static int omap_validate_emiff_addr(struct omap_mpu_state_s *s,
4592 target_phys_addr_t addr)
4593 {
4594 return addr >= OMAP_EMIFF_BASE && addr < OMAP_EMIFF_BASE + s->sdram_size;
4595 }
4596
4597 static int omap_validate_emifs_addr(struct omap_mpu_state_s *s,
4598 target_phys_addr_t addr)
4599 {
4600 return addr >= OMAP_EMIFS_BASE && addr < OMAP_EMIFF_BASE;
4601 }
4602
4603 static int omap_validate_imif_addr(struct omap_mpu_state_s *s,
4604 target_phys_addr_t addr)
4605 {
4606 return addr >= OMAP_IMIF_BASE && addr < OMAP_IMIF_BASE + s->sram_size;
4607 }
4608
4609 static int omap_validate_tipb_addr(struct omap_mpu_state_s *s,
4610 target_phys_addr_t addr)
4611 {
4612 return addr >= 0xfffb0000 && addr < 0xffff0000;
4613 }
4614
4615 static int omap_validate_local_addr(struct omap_mpu_state_s *s,
4616 target_phys_addr_t addr)
4617 {
4618 return addr >= OMAP_LOCALBUS_BASE && addr < OMAP_LOCALBUS_BASE + 0x1000000;
4619 }
4620
4621 static int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s,
4622 target_phys_addr_t addr)
4623 {
4624 return addr >= 0xe1010000 && addr < 0xe1020004;
4625 }
4626
4627 struct omap_mpu_state_s *omap310_mpu_init(unsigned long sdram_size,
4628 const char *core)
4629 {
4630 int i;
4631 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *)
4632 qemu_mallocz(sizeof(struct omap_mpu_state_s));
4633 ram_addr_t imif_base, emiff_base;
4634 qemu_irq *cpu_irq;
4635 qemu_irq dma_irqs[6];
4636 DriveInfo *dinfo;
4637
4638 if (!core)
4639 core = "ti925t";
4640
4641 /* Core */
4642 s->mpu_model = omap310;
4643 s->env = cpu_init(core);
4644 if (!s->env) {
4645 fprintf(stderr, "Unable to find CPU definition\n");
4646 exit(1);
4647 }
4648 s->sdram_size = sdram_size;
4649 s->sram_size = OMAP15XX_SRAM_SIZE;
4650
4651 s->wakeup = qemu_allocate_irqs(omap_mpu_wakeup, s, 1)[0];
4652
4653 /* Clocks */
4654 omap_clk_init(s);
4655
4656 /* Memory-mapped stuff */
4657 cpu_register_physical_memory(OMAP_EMIFF_BASE, s->sdram_size,
4658 (emiff_base = qemu_ram_alloc(s->sdram_size)) | IO_MEM_RAM);
4659 cpu_register_physical_memory(OMAP_IMIF_BASE, s->sram_size,
4660 (imif_base = qemu_ram_alloc(s->sram_size)) | IO_MEM_RAM);
4661
4662 omap_clkm_init(0xfffece00, 0xe1008000, s);
4663
4664 cpu_irq = arm_pic_init_cpu(s->env);
4665 s->ih[0] = omap_inth_init(0xfffecb00, 0x100, 1, &s->irq[0],
4666 cpu_irq[ARM_PIC_CPU_IRQ], cpu_irq[ARM_PIC_CPU_FIQ],
4667 omap_findclk(s, "arminth_ck"));
4668 s->ih[1] = omap_inth_init(0xfffe0000, 0x800, 1, &s->irq[1],
4669 s->ih[0]->pins[OMAP_INT_15XX_IH2_IRQ], NULL,
4670 omap_findclk(s, "arminth_ck"));
4671
4672 for (i = 0; i < 6; i ++)
4673 dma_irqs[i] =
4674 s->irq[omap1_dma_irq_map[i].ih][omap1_dma_irq_map[i].intr];
4675 s->dma = omap_dma_init(0xfffed800, dma_irqs, s->irq[0][OMAP_INT_DMA_LCD],
4676 s, omap_findclk(s, "dma_ck"), omap_dma_3_1);
4677
4678 s->port[emiff ].addr_valid = omap_validate_emiff_addr;
4679 s->port[emifs ].addr_valid = omap_validate_emifs_addr;
4680 s->port[imif ].addr_valid = omap_validate_imif_addr;
4681 s->port[tipb ].addr_valid = omap_validate_tipb_addr;
4682 s->port[local ].addr_valid = omap_validate_local_addr;
4683 s->port[tipb_mpui].addr_valid = omap_validate_tipb_mpui_addr;
4684
4685 /* Register SDRAM and SRAM DMA ports for fast transfers. */
4686 soc_dma_port_add_mem_ram(s->dma,
4687 emiff_base, OMAP_EMIFF_BASE, s->sdram_size);
4688 soc_dma_port_add_mem_ram(s->dma,
4689 imif_base, OMAP_IMIF_BASE, s->sram_size);
4690
4691 s->timer[0] = omap_mpu_timer_init(0xfffec500,
4692 s->irq[0][OMAP_INT_TIMER1],
4693 omap_findclk(s, "mputim_ck"));
4694 s->timer[1] = omap_mpu_timer_init(0xfffec600,
4695 s->irq[0][OMAP_INT_TIMER2],
4696 omap_findclk(s, "mputim_ck"));
4697 s->timer[2] = omap_mpu_timer_init(0xfffec700,
4698 s->irq[0][OMAP_INT_TIMER3],
4699 omap_findclk(s, "mputim_ck"));
4700
4701 s->wdt = omap_wd_timer_init(0xfffec800,
4702 s->irq[0][OMAP_INT_WD_TIMER],
4703 omap_findclk(s, "armwdt_ck"));
4704
4705 s->os_timer = omap_os_timer_init(0xfffb9000,
4706 s->irq[1][OMAP_INT_OS_TIMER],
4707 omap_findclk(s, "clk32-kHz"));
4708
4709 s->lcd = omap_lcdc_init(0xfffec000, s->irq[0][OMAP_INT_LCD_CTRL],
4710 omap_dma_get_lcdch(s->dma), imif_base, emiff_base,
4711 omap_findclk(s, "lcd_ck"));
4712
4713 omap_ulpd_pm_init(0xfffe0800, s);
4714 omap_pin_cfg_init(0xfffe1000, s);
4715 omap_id_init(s);
4716
4717 omap_mpui_init(0xfffec900, s);
4718
4719 s->private_tipb = omap_tipb_bridge_init(0xfffeca00,
4720 s->irq[0][OMAP_INT_BRIDGE_PRIV],
4721 omap_findclk(s, "tipb_ck"));
4722 s->public_tipb = omap_tipb_bridge_init(0xfffed300,
4723 s->irq[0][OMAP_INT_BRIDGE_PUB],
4724 omap_findclk(s, "tipb_ck"));
4725
4726 omap_tcmi_init(0xfffecc00, s);
4727
4728 s->uart[0] = omap_uart_init(0xfffb0000, s->irq[1][OMAP_INT_UART1],
4729 omap_findclk(s, "uart1_ck"),
4730 omap_findclk(s, "uart1_ck"),
4731 s->drq[OMAP_DMA_UART1_TX], s->drq[OMAP_DMA_UART1_RX],
4732 serial_hds[0]);
4733 s->uart[1] = omap_uart_init(0xfffb0800, s->irq[1][OMAP_INT_UART2],
4734 omap_findclk(s, "uart2_ck"),
4735 omap_findclk(s, "uart2_ck"),
4736 s->drq[OMAP_DMA_UART2_TX], s->drq[OMAP_DMA_UART2_RX],
4737 serial_hds[0] ? serial_hds[1] : NULL);
4738 s->uart[2] = omap_uart_init(0xfffb9800, s->irq[0][OMAP_INT_UART3],
4739 omap_findclk(s, "uart3_ck"),
4740 omap_findclk(s, "uart3_ck"),
4741 s->drq[OMAP_DMA_UART3_TX], s->drq[OMAP_DMA_UART3_RX],
4742 serial_hds[0] && serial_hds[1] ? serial_hds[2] : NULL);
4743
4744 omap_dpll_init(&s->dpll[0], 0xfffecf00, omap_findclk(s, "dpll1"));
4745 omap_dpll_init(&s->dpll[1], 0xfffed000, omap_findclk(s, "dpll2"));
4746 omap_dpll_init(&s->dpll[2], 0xfffed100, omap_findclk(s, "dpll3"));
4747
4748 dinfo = drive_get(IF_SD, 0, 0);
4749 if (!dinfo) {
4750 fprintf(stderr, "qemu: missing SecureDigital device\n");
4751 exit(1);
4752 }
4753 s->mmc = omap_mmc_init(0xfffb7800, dinfo->bdrv,
4754 s->irq[1][OMAP_INT_OQN], &s->drq[OMAP_DMA_MMC_TX],
4755 omap_findclk(s, "mmc_ck"));
4756
4757 s->mpuio = omap_mpuio_init(0xfffb5000,
4758 s->irq[1][OMAP_INT_KEYBOARD], s->irq[1][OMAP_INT_MPUIO],
4759 s->wakeup, omap_findclk(s, "clk32-kHz"));
4760
4761 s->gpio = omap_gpio_init(0xfffce000, s->irq[0][OMAP_INT_GPIO_BANK1],
4762 omap_findclk(s, "arm_gpio_ck"));
4763
4764 s->microwire = omap_uwire_init(0xfffb3000, &s->irq[1][OMAP_INT_uWireTX],
4765 s->drq[OMAP_DMA_UWIRE_TX], omap_findclk(s, "mpuper_ck"));
4766
4767 omap_pwl_init(0xfffb5800, s, omap_findclk(s, "armxor_ck"));
4768 omap_pwt_init(0xfffb6000, s, omap_findclk(s, "armxor_ck"));
4769
4770 s->i2c[0] = omap_i2c_init(0xfffb3800, s->irq[1][OMAP_INT_I2C],
4771 &s->drq[OMAP_DMA_I2C_RX], omap_findclk(s, "mpuper_ck"));
4772
4773 s->rtc = omap_rtc_init(0xfffb4800, &s->irq[1][OMAP_INT_RTC_TIMER],
4774 omap_findclk(s, "clk32-kHz"));
4775
4776 s->mcbsp1 = omap_mcbsp_init(0xfffb1800, &s->irq[1][OMAP_INT_McBSP1TX],
4777 &s->drq[OMAP_DMA_MCBSP1_TX], omap_findclk(s, "dspxor_ck"));
4778 s->mcbsp2 = omap_mcbsp_init(0xfffb1000, &s->irq[0][OMAP_INT_310_McBSP2_TX],
4779 &s->drq[OMAP_DMA_MCBSP2_TX], omap_findclk(s, "mpuper_ck"));
4780 s->mcbsp3 = omap_mcbsp_init(0xfffb7000, &s->irq[1][OMAP_INT_McBSP3TX],
4781 &s->drq[OMAP_DMA_MCBSP3_TX], omap_findclk(s, "dspxor_ck"));
4782
4783 s->led[0] = omap_lpg_init(0xfffbd000, omap_findclk(s, "clk32-kHz"));
4784 s->led[1] = omap_lpg_init(0xfffbd800, omap_findclk(s, "clk32-kHz"));
4785
4786 /* Register mappings not currenlty implemented:
4787 * MCSI2 Comm fffb2000 - fffb27ff (not mapped on OMAP310)
4788 * MCSI1 Bluetooth fffb2800 - fffb2fff (not mapped on OMAP310)
4789 * USB W2FC fffb4000 - fffb47ff
4790 * Camera Interface fffb6800 - fffb6fff
4791 * USB Host fffba000 - fffba7ff
4792 * FAC fffba800 - fffbafff
4793 * HDQ/1-Wire fffbc000 - fffbc7ff
4794 * TIPB switches fffbc800 - fffbcfff
4795 * Mailbox fffcf000 - fffcf7ff
4796 * Local bus IF fffec100 - fffec1ff
4797 * Local bus MMU fffec200 - fffec2ff
4798 * DSP MMU fffed200 - fffed2ff
4799 */
4800
4801 omap_setup_dsp_mapping(omap15xx_dsp_mm);
4802 omap_setup_mpui_io(s);
4803
4804 qemu_register_reset(omap1_mpu_reset, s);
4805
4806 return s;
4807 }
kraxel's qemu bits