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a single vnc timer to refresh the screen
[qemu/ar7.git] / hw / omap1.c
blob93515ee810ab5e6f23acf079263f7a187f4a3373
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 *omap_inth_readfn[] = {
370 omap_badwidth_read32,
371 omap_badwidth_read32,
372 omap_inth_read,
373 };
374
375 static CPUWriteMemoryFunc *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 = 0;
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 = 0;
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 *omap2_inth_readfn[] = {
616 omap_badwidth_read32,
617 omap_badwidth_read32,
618 omap2_inth_read,
619 };
620
621 static CPUWriteMemoryFunc *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, 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 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 > (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 *omap_mpu_timer_readfn[] = {
799 omap_badwidth_read32,
800 omap_badwidth_read32,
801 omap_mpu_timer_read,
802 };
803
804 static CPUWriteMemoryFunc *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 *omap_wd_timer_readfn[] = {
917 omap_badwidth_read16,
918 omap_wd_timer_read,
919 omap_badwidth_read16,
920 };
921
922 static CPUWriteMemoryFunc *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 *omap_os_timer_readfn[] = {
1025 omap_badwidth_read32,
1026 omap_badwidth_read32,
1027 omap_os_timer_read,
1028 };
1029
1030 static CPUWriteMemoryFunc *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, 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, 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 *omap_ulpd_pm_readfn[] = {
1247 omap_badwidth_read16,
1248 omap_ulpd_pm_read,
1249 omap_badwidth_read16,
1250 };
1251
1252 static CPUWriteMemoryFunc *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 *omap_pin_cfg_readfn[] = {
1473 omap_badwidth_read32,
1474 omap_badwidth_read32,
1475 omap_pin_cfg_read,
1476 };
1477
1478 static CPUWriteMemoryFunc *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 *omap_id_readfn[] = {
1560 omap_badwidth_read32,
1561 omap_badwidth_read32,
1562 omap_id_read,
1563 };
1564
1565 static CPUWriteMemoryFunc *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 *omap_mpui_readfn[] = {
1637 omap_badwidth_read32,
1638 omap_badwidth_read32,
1639 omap_mpui_read,
1640 };
1641
1642 static CPUWriteMemoryFunc *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 *omap_tipb_bridge_readfn[] = {
1736 omap_badwidth_read16,
1737 omap_tipb_bridge_read,
1738 omap_tipb_bridge_read,
1739 };
1740
1741 static CPUWriteMemoryFunc *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 *omap_tcmi_readfn[] = {
1838 omap_badwidth_read32,
1839 omap_badwidth_read32,
1840 omap_tcmi_read,
1841 };
1842
1843 static CPUWriteMemoryFunc *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 *omap_dpll_readfn[] = {
1924 omap_badwidth_read16,
1925 omap_dpll_read,
1926 omap_badwidth_read16,
1927 };
1928
1929 static CPUWriteMemoryFunc *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 s->serial = serial_mm_init(base, 2, irq, omap_clk_getrate(fclk)/16,
1990 chr ?: qemu_chr_open("null", "null", NULL), 1);
1991
1992 return s;
1993 }
1994
1995 static uint32_t omap_uart_read(void *opaque, target_phys_addr_t addr)
1996 {
1997 struct omap_uart_s *s = (struct omap_uart_s *) opaque;
1998
1999 addr &= 0xff;
2000 switch (addr) {
2001 case 0x20: /* MDR1 */
2002 return s->mdr[0];
2003 case 0x24: /* MDR2 */
2004 return s->mdr[1];
2005 case 0x40: /* SCR */
2006 return s->scr;
2007 case 0x44: /* SSR */
2008 return 0x0;
2009 case 0x48: /* EBLR (OMAP2) */
2010 return s->eblr;
2011 case 0x4C: /* OSC_12M_SEL (OMAP1) */
2012 return s->clksel;
2013 case 0x50: /* MVR */
2014 return 0x30;
2015 case 0x54: /* SYSC (OMAP2) */
2016 return s->syscontrol;
2017 case 0x58: /* SYSS (OMAP2) */
2018 return 1;
2019 case 0x5c: /* WER (OMAP2) */
2020 return s->wkup;
2021 case 0x60: /* CFPS (OMAP2) */
2022 return s->cfps;
2023 }
2024
2025 OMAP_BAD_REG(addr);
2026 return 0;
2027 }
2028
2029 static void omap_uart_write(void *opaque, target_phys_addr_t addr,
2030 uint32_t value)
2031 {
2032 struct omap_uart_s *s = (struct omap_uart_s *) opaque;
2033
2034 addr &= 0xff;
2035 switch (addr) {
2036 case 0x20: /* MDR1 */
2037 s->mdr[0] = value & 0x7f;
2038 break;
2039 case 0x24: /* MDR2 */
2040 s->mdr[1] = value & 0xff;
2041 break;
2042 case 0x40: /* SCR */
2043 s->scr = value & 0xff;
2044 break;
2045 case 0x48: /* EBLR (OMAP2) */
2046 s->eblr = value & 0xff;
2047 break;
2048 case 0x4C: /* OSC_12M_SEL (OMAP1) */
2049 s->clksel = value & 1;
2050 break;
2051 case 0x44: /* SSR */
2052 case 0x50: /* MVR */
2053 case 0x58: /* SYSS (OMAP2) */
2054 OMAP_RO_REG(addr);
2055 break;
2056 case 0x54: /* SYSC (OMAP2) */
2057 s->syscontrol = value & 0x1d;
2058 if (value & 2)
2059 omap_uart_reset(s);
2060 break;
2061 case 0x5c: /* WER (OMAP2) */
2062 s->wkup = value & 0x7f;
2063 break;
2064 case 0x60: /* CFPS (OMAP2) */
2065 s->cfps = value & 0xff;
2066 break;
2067 default:
2068 OMAP_BAD_REG(addr);
2069 }
2070 }
2071
2072 static CPUReadMemoryFunc *omap_uart_readfn[] = {
2073 omap_uart_read,
2074 omap_uart_read,
2075 omap_badwidth_read8,
2076 };
2077
2078 static CPUWriteMemoryFunc *omap_uart_writefn[] = {
2079 omap_uart_write,
2080 omap_uart_write,
2081 omap_badwidth_write8,
2082 };
2083
2084 struct omap_uart_s *omap2_uart_init(struct omap_target_agent_s *ta,
2085 qemu_irq irq, omap_clk fclk, omap_clk iclk,
2086 qemu_irq txdma, qemu_irq rxdma, CharDriverState *chr)
2087 {
2088 target_phys_addr_t base = omap_l4_attach(ta, 0, 0);
2089 struct omap_uart_s *s = omap_uart_init(base, irq,
2090 fclk, iclk, txdma, rxdma, chr);
2091 int iomemtype = cpu_register_io_memory(omap_uart_readfn,
2092 omap_uart_writefn, s);
2093
2094 s->ta = ta;
2095
2096 cpu_register_physical_memory(base + 0x20, 0x100, iomemtype);
2097
2098 return s;
2099 }
2100
2101 void omap_uart_attach(struct omap_uart_s *s, CharDriverState *chr)
2102 {
2103 /* TODO: Should reuse or destroy current s->serial */
2104 s->serial = serial_mm_init(s->base, 2, s->irq,
2105 omap_clk_getrate(s->fclk) / 16,
2106 chr ?: qemu_chr_open("null", "null", NULL), 1);
2107 }
2108
2109 /* MPU Clock/Reset/Power Mode Control */
2110 static uint32_t omap_clkm_read(void *opaque, target_phys_addr_t addr)
2111 {
2112 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2113
2114 switch (addr) {
2115 case 0x00: /* ARM_CKCTL */
2116 return s->clkm.arm_ckctl;
2117
2118 case 0x04: /* ARM_IDLECT1 */
2119 return s->clkm.arm_idlect1;
2120
2121 case 0x08: /* ARM_IDLECT2 */
2122 return s->clkm.arm_idlect2;
2123
2124 case 0x0c: /* ARM_EWUPCT */
2125 return s->clkm.arm_ewupct;
2126
2127 case 0x10: /* ARM_RSTCT1 */
2128 return s->clkm.arm_rstct1;
2129
2130 case 0x14: /* ARM_RSTCT2 */
2131 return s->clkm.arm_rstct2;
2132
2133 case 0x18: /* ARM_SYSST */
2134 return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start;
2135
2136 case 0x1c: /* ARM_CKOUT1 */
2137 return s->clkm.arm_ckout1;
2138
2139 case 0x20: /* ARM_CKOUT2 */
2140 break;
2141 }
2142
2143 OMAP_BAD_REG(addr);
2144 return 0;
2145 }
2146
2147 static inline void omap_clkm_ckctl_update(struct omap_mpu_state_s *s,
2148 uint16_t diff, uint16_t value)
2149 {
2150 omap_clk clk;
2151
2152 if (diff & (1 << 14)) { /* ARM_INTHCK_SEL */
2153 if (value & (1 << 14))
2154 /* Reserved */;
2155 else {
2156 clk = omap_findclk(s, "arminth_ck");
2157 omap_clk_reparent(clk, omap_findclk(s, "tc_ck"));
2158 }
2159 }
2160 if (diff & (1 << 12)) { /* ARM_TIMXO */
2161 clk = omap_findclk(s, "armtim_ck");
2162 if (value & (1 << 12))
2163 omap_clk_reparent(clk, omap_findclk(s, "clkin"));
2164 else
2165 omap_clk_reparent(clk, omap_findclk(s, "ck_gen1"));
2166 }
2167 /* XXX: en_dspck */
2168 if (diff & (3 << 10)) { /* DSPMMUDIV */
2169 clk = omap_findclk(s, "dspmmu_ck");
2170 omap_clk_setrate(clk, 1 << ((value >> 10) & 3), 1);
2171 }
2172 if (diff & (3 << 8)) { /* TCDIV */
2173 clk = omap_findclk(s, "tc_ck");
2174 omap_clk_setrate(clk, 1 << ((value >> 8) & 3), 1);
2175 }
2176 if (diff & (3 << 6)) { /* DSPDIV */
2177 clk = omap_findclk(s, "dsp_ck");
2178 omap_clk_setrate(clk, 1 << ((value >> 6) & 3), 1);
2179 }
2180 if (diff & (3 << 4)) { /* ARMDIV */
2181 clk = omap_findclk(s, "arm_ck");
2182 omap_clk_setrate(clk, 1 << ((value >> 4) & 3), 1);
2183 }
2184 if (diff & (3 << 2)) { /* LCDDIV */
2185 clk = omap_findclk(s, "lcd_ck");
2186 omap_clk_setrate(clk, 1 << ((value >> 2) & 3), 1);
2187 }
2188 if (diff & (3 << 0)) { /* PERDIV */
2189 clk = omap_findclk(s, "armper_ck");
2190 omap_clk_setrate(clk, 1 << ((value >> 0) & 3), 1);
2191 }
2192 }
2193
2194 static inline void omap_clkm_idlect1_update(struct omap_mpu_state_s *s,
2195 uint16_t diff, uint16_t value)
2196 {
2197 omap_clk clk;
2198
2199 if (value & (1 << 11)) /* SETARM_IDLE */
2200 cpu_interrupt(s->env, CPU_INTERRUPT_HALT);
2201 if (!(value & (1 << 10))) /* WKUP_MODE */
2202 qemu_system_shutdown_request(); /* XXX: disable wakeup from IRQ */
2203
2204 #define SET_CANIDLE(clock, bit) \
2205 if (diff & (1 << bit)) { \
2206 clk = omap_findclk(s, clock); \
2207 omap_clk_canidle(clk, (value >> bit) & 1); \
2208 }
2209 SET_CANIDLE("mpuwd_ck", 0) /* IDLWDT_ARM */
2210 SET_CANIDLE("armxor_ck", 1) /* IDLXORP_ARM */
2211 SET_CANIDLE("mpuper_ck", 2) /* IDLPER_ARM */
2212 SET_CANIDLE("lcd_ck", 3) /* IDLLCD_ARM */
2213 SET_CANIDLE("lb_ck", 4) /* IDLLB_ARM */
2214 SET_CANIDLE("hsab_ck", 5) /* IDLHSAB_ARM */
2215 SET_CANIDLE("tipb_ck", 6) /* IDLIF_ARM */
2216 SET_CANIDLE("dma_ck", 6) /* IDLIF_ARM */
2217 SET_CANIDLE("tc_ck", 6) /* IDLIF_ARM */
2218 SET_CANIDLE("dpll1", 7) /* IDLDPLL_ARM */
2219 SET_CANIDLE("dpll2", 7) /* IDLDPLL_ARM */
2220 SET_CANIDLE("dpll3", 7) /* IDLDPLL_ARM */
2221 SET_CANIDLE("mpui_ck", 8) /* IDLAPI_ARM */
2222 SET_CANIDLE("armtim_ck", 9) /* IDLTIM_ARM */
2223 }
2224
2225 static inline void omap_clkm_idlect2_update(struct omap_mpu_state_s *s,
2226 uint16_t diff, uint16_t value)
2227 {
2228 omap_clk clk;
2229
2230 #define SET_ONOFF(clock, bit) \
2231 if (diff & (1 << bit)) { \
2232 clk = omap_findclk(s, clock); \
2233 omap_clk_onoff(clk, (value >> bit) & 1); \
2234 }
2235 SET_ONOFF("mpuwd_ck", 0) /* EN_WDTCK */
2236 SET_ONOFF("armxor_ck", 1) /* EN_XORPCK */
2237 SET_ONOFF("mpuper_ck", 2) /* EN_PERCK */
2238 SET_ONOFF("lcd_ck", 3) /* EN_LCDCK */
2239 SET_ONOFF("lb_ck", 4) /* EN_LBCK */
2240 SET_ONOFF("hsab_ck", 5) /* EN_HSABCK */
2241 SET_ONOFF("mpui_ck", 6) /* EN_APICK */
2242 SET_ONOFF("armtim_ck", 7) /* EN_TIMCK */
2243 SET_CANIDLE("dma_ck", 8) /* DMACK_REQ */
2244 SET_ONOFF("arm_gpio_ck", 9) /* EN_GPIOCK */
2245 SET_ONOFF("lbfree_ck", 10) /* EN_LBFREECK */
2246 }
2247
2248 static inline void omap_clkm_ckout1_update(struct omap_mpu_state_s *s,
2249 uint16_t diff, uint16_t value)
2250 {
2251 omap_clk clk;
2252
2253 if (diff & (3 << 4)) { /* TCLKOUT */
2254 clk = omap_findclk(s, "tclk_out");
2255 switch ((value >> 4) & 3) {
2256 case 1:
2257 omap_clk_reparent(clk, omap_findclk(s, "ck_gen3"));
2258 omap_clk_onoff(clk, 1);
2259 break;
2260 case 2:
2261 omap_clk_reparent(clk, omap_findclk(s, "tc_ck"));
2262 omap_clk_onoff(clk, 1);
2263 break;
2264 default:
2265 omap_clk_onoff(clk, 0);
2266 }
2267 }
2268 if (diff & (3 << 2)) { /* DCLKOUT */
2269 clk = omap_findclk(s, "dclk_out");
2270 switch ((value >> 2) & 3) {
2271 case 0:
2272 omap_clk_reparent(clk, omap_findclk(s, "dspmmu_ck"));
2273 break;
2274 case 1:
2275 omap_clk_reparent(clk, omap_findclk(s, "ck_gen2"));
2276 break;
2277 case 2:
2278 omap_clk_reparent(clk, omap_findclk(s, "dsp_ck"));
2279 break;
2280 case 3:
2281 omap_clk_reparent(clk, omap_findclk(s, "ck_ref14"));
2282 break;
2283 }
2284 }
2285 if (diff & (3 << 0)) { /* ACLKOUT */
2286 clk = omap_findclk(s, "aclk_out");
2287 switch ((value >> 0) & 3) {
2288 case 1:
2289 omap_clk_reparent(clk, omap_findclk(s, "ck_gen1"));
2290 omap_clk_onoff(clk, 1);
2291 break;
2292 case 2:
2293 omap_clk_reparent(clk, omap_findclk(s, "arm_ck"));
2294 omap_clk_onoff(clk, 1);
2295 break;
2296 case 3:
2297 omap_clk_reparent(clk, omap_findclk(s, "ck_ref14"));
2298 omap_clk_onoff(clk, 1);
2299 break;
2300 default:
2301 omap_clk_onoff(clk, 0);
2302 }
2303 }
2304 }
2305
2306 static void omap_clkm_write(void *opaque, target_phys_addr_t addr,
2307 uint32_t value)
2308 {
2309 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2310 uint16_t diff;
2311 omap_clk clk;
2312 static const char *clkschemename[8] = {
2313 "fully synchronous", "fully asynchronous", "synchronous scalable",
2314 "mix mode 1", "mix mode 2", "bypass mode", "mix mode 3", "mix mode 4",
2315 };
2316
2317 switch (addr) {
2318 case 0x00: /* ARM_CKCTL */
2319 diff = s->clkm.arm_ckctl ^ value;
2320 s->clkm.arm_ckctl = value & 0x7fff;
2321 omap_clkm_ckctl_update(s, diff, value);
2322 return;
2323
2324 case 0x04: /* ARM_IDLECT1 */
2325 diff = s->clkm.arm_idlect1 ^ value;
2326 s->clkm.arm_idlect1 = value & 0x0fff;
2327 omap_clkm_idlect1_update(s, diff, value);
2328 return;
2329
2330 case 0x08: /* ARM_IDLECT2 */
2331 diff = s->clkm.arm_idlect2 ^ value;
2332 s->clkm.arm_idlect2 = value & 0x07ff;
2333 omap_clkm_idlect2_update(s, diff, value);
2334 return;
2335
2336 case 0x0c: /* ARM_EWUPCT */
2337 diff = s->clkm.arm_ewupct ^ value;
2338 s->clkm.arm_ewupct = value & 0x003f;
2339 return;
2340
2341 case 0x10: /* ARM_RSTCT1 */
2342 diff = s->clkm.arm_rstct1 ^ value;
2343 s->clkm.arm_rstct1 = value & 0x0007;
2344 if (value & 9) {
2345 qemu_system_reset_request();
2346 s->clkm.cold_start = 0xa;
2347 }
2348 if (diff & ~value & 4) { /* DSP_RST */
2349 omap_mpui_reset(s);
2350 omap_tipb_bridge_reset(s->private_tipb);
2351 omap_tipb_bridge_reset(s->public_tipb);
2352 }
2353 if (diff & 2) { /* DSP_EN */
2354 clk = omap_findclk(s, "dsp_ck");
2355 omap_clk_canidle(clk, (~value >> 1) & 1);
2356 }
2357 return;
2358
2359 case 0x14: /* ARM_RSTCT2 */
2360 s->clkm.arm_rstct2 = value & 0x0001;
2361 return;
2362
2363 case 0x18: /* ARM_SYSST */
2364 if ((s->clkm.clocking_scheme ^ (value >> 11)) & 7) {
2365 s->clkm.clocking_scheme = (value >> 11) & 7;
2366 printf("%s: clocking scheme set to %s\n", __FUNCTION__,
2367 clkschemename[s->clkm.clocking_scheme]);
2368 }
2369 s->clkm.cold_start &= value & 0x3f;
2370 return;
2371
2372 case 0x1c: /* ARM_CKOUT1 */
2373 diff = s->clkm.arm_ckout1 ^ value;
2374 s->clkm.arm_ckout1 = value & 0x003f;
2375 omap_clkm_ckout1_update(s, diff, value);
2376 return;
2377
2378 case 0x20: /* ARM_CKOUT2 */
2379 default:
2380 OMAP_BAD_REG(addr);
2381 }
2382 }
2383
2384 static CPUReadMemoryFunc *omap_clkm_readfn[] = {
2385 omap_badwidth_read16,
2386 omap_clkm_read,
2387 omap_badwidth_read16,
2388 };
2389
2390 static CPUWriteMemoryFunc *omap_clkm_writefn[] = {
2391 omap_badwidth_write16,
2392 omap_clkm_write,
2393 omap_badwidth_write16,
2394 };
2395
2396 static uint32_t omap_clkdsp_read(void *opaque, target_phys_addr_t addr)
2397 {
2398 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2399
2400 switch (addr) {
2401 case 0x04: /* DSP_IDLECT1 */
2402 return s->clkm.dsp_idlect1;
2403
2404 case 0x08: /* DSP_IDLECT2 */
2405 return s->clkm.dsp_idlect2;
2406
2407 case 0x14: /* DSP_RSTCT2 */
2408 return s->clkm.dsp_rstct2;
2409
2410 case 0x18: /* DSP_SYSST */
2411 return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start |
2412 (s->env->halted << 6); /* Quite useless... */
2413 }
2414
2415 OMAP_BAD_REG(addr);
2416 return 0;
2417 }
2418
2419 static inline void omap_clkdsp_idlect1_update(struct omap_mpu_state_s *s,
2420 uint16_t diff, uint16_t value)
2421 {
2422 omap_clk clk;
2423
2424 SET_CANIDLE("dspxor_ck", 1); /* IDLXORP_DSP */
2425 }
2426
2427 static inline void omap_clkdsp_idlect2_update(struct omap_mpu_state_s *s,
2428 uint16_t diff, uint16_t value)
2429 {
2430 omap_clk clk;
2431
2432 SET_ONOFF("dspxor_ck", 1); /* EN_XORPCK */
2433 }
2434
2435 static void omap_clkdsp_write(void *opaque, target_phys_addr_t addr,
2436 uint32_t value)
2437 {
2438 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
2439 uint16_t diff;
2440
2441 switch (addr) {
2442 case 0x04: /* DSP_IDLECT1 */
2443 diff = s->clkm.dsp_idlect1 ^ value;
2444 s->clkm.dsp_idlect1 = value & 0x01f7;
2445 omap_clkdsp_idlect1_update(s, diff, value);
2446 break;
2447
2448 case 0x08: /* DSP_IDLECT2 */
2449 s->clkm.dsp_idlect2 = value & 0x0037;
2450 diff = s->clkm.dsp_idlect1 ^ value;
2451 omap_clkdsp_idlect2_update(s, diff, value);
2452 break;
2453
2454 case 0x14: /* DSP_RSTCT2 */
2455 s->clkm.dsp_rstct2 = value & 0x0001;
2456 break;
2457
2458 case 0x18: /* DSP_SYSST */
2459 s->clkm.cold_start &= value & 0x3f;
2460 break;
2461
2462 default:
2463 OMAP_BAD_REG(addr);
2464 }
2465 }
2466
2467 static CPUReadMemoryFunc *omap_clkdsp_readfn[] = {
2468 omap_badwidth_read16,
2469 omap_clkdsp_read,
2470 omap_badwidth_read16,
2471 };
2472
2473 static CPUWriteMemoryFunc *omap_clkdsp_writefn[] = {
2474 omap_badwidth_write16,
2475 omap_clkdsp_write,
2476 omap_badwidth_write16,
2477 };
2478
2479 static void omap_clkm_reset(struct omap_mpu_state_s *s)
2480 {
2481 if (s->wdt && s->wdt->reset)
2482 s->clkm.cold_start = 0x6;
2483 s->clkm.clocking_scheme = 0;
2484 omap_clkm_ckctl_update(s, ~0, 0x3000);
2485 s->clkm.arm_ckctl = 0x3000;
2486 omap_clkm_idlect1_update(s, s->clkm.arm_idlect1 ^ 0x0400, 0x0400);
2487 s->clkm.arm_idlect1 = 0x0400;
2488 omap_clkm_idlect2_update(s, s->clkm.arm_idlect2 ^ 0x0100, 0x0100);
2489 s->clkm.arm_idlect2 = 0x0100;
2490 s->clkm.arm_ewupct = 0x003f;
2491 s->clkm.arm_rstct1 = 0x0000;
2492 s->clkm.arm_rstct2 = 0x0000;
2493 s->clkm.arm_ckout1 = 0x0015;
2494 s->clkm.dpll1_mode = 0x2002;
2495 omap_clkdsp_idlect1_update(s, s->clkm.dsp_idlect1 ^ 0x0040, 0x0040);
2496 s->clkm.dsp_idlect1 = 0x0040;
2497 omap_clkdsp_idlect2_update(s, ~0, 0x0000);
2498 s->clkm.dsp_idlect2 = 0x0000;
2499 s->clkm.dsp_rstct2 = 0x0000;
2500 }
2501
2502 static void omap_clkm_init(target_phys_addr_t mpu_base,
2503 target_phys_addr_t dsp_base, struct omap_mpu_state_s *s)
2504 {
2505 int iomemtype[2] = {
2506 cpu_register_io_memory(omap_clkm_readfn, omap_clkm_writefn, s),
2507 cpu_register_io_memory(omap_clkdsp_readfn, omap_clkdsp_writefn, s),
2508 };
2509
2510 s->clkm.arm_idlect1 = 0x03ff;
2511 s->clkm.arm_idlect2 = 0x0100;
2512 s->clkm.dsp_idlect1 = 0x0002;
2513 omap_clkm_reset(s);
2514 s->clkm.cold_start = 0x3a;
2515
2516 cpu_register_physical_memory(mpu_base, 0x100, iomemtype[0]);
2517 cpu_register_physical_memory(dsp_base, 0x1000, iomemtype[1]);
2518 }
2519
2520 /* MPU I/O */
2521 struct omap_mpuio_s {
2522 qemu_irq irq;
2523 qemu_irq kbd_irq;
2524 qemu_irq *in;
2525 qemu_irq handler[16];
2526 qemu_irq wakeup;
2527
2528 uint16_t inputs;
2529 uint16_t outputs;
2530 uint16_t dir;
2531 uint16_t edge;
2532 uint16_t mask;
2533 uint16_t ints;
2534
2535 uint16_t debounce;
2536 uint16_t latch;
2537 uint8_t event;
2538
2539 uint8_t buttons[5];
2540 uint8_t row_latch;
2541 uint8_t cols;
2542 int kbd_mask;
2543 int clk;
2544 };
2545
2546 static void omap_mpuio_set(void *opaque, int line, int level)
2547 {
2548 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2549 uint16_t prev = s->inputs;
2550
2551 if (level)
2552 s->inputs |= 1 << line;
2553 else
2554 s->inputs &= ~(1 << line);
2555
2556 if (((1 << line) & s->dir & ~s->mask) && s->clk) {
2557 if ((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) {
2558 s->ints |= 1 << line;
2559 qemu_irq_raise(s->irq);
2560 /* TODO: wakeup */
2561 }
2562 if ((s->event & (1 << 0)) && /* SET_GPIO_EVENT_MODE */
2563 (s->event >> 1) == line) /* PIN_SELECT */
2564 s->latch = s->inputs;
2565 }
2566 }
2567
2568 static void omap_mpuio_kbd_update(struct omap_mpuio_s *s)
2569 {
2570 int i;
2571 uint8_t *row, rows = 0, cols = ~s->cols;
2572
2573 for (row = s->buttons + 4, i = 1 << 4; i; row --, i >>= 1)
2574 if (*row & cols)
2575 rows |= i;
2576
2577 qemu_set_irq(s->kbd_irq, rows && !s->kbd_mask && s->clk);
2578 s->row_latch = ~rows;
2579 }
2580
2581 static uint32_t omap_mpuio_read(void *opaque, target_phys_addr_t addr)
2582 {
2583 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2584 int offset = addr & OMAP_MPUI_REG_MASK;
2585 uint16_t ret;
2586
2587 switch (offset) {
2588 case 0x00: /* INPUT_LATCH */
2589 return s->inputs;
2590
2591 case 0x04: /* OUTPUT_REG */
2592 return s->outputs;
2593
2594 case 0x08: /* IO_CNTL */
2595 return s->dir;
2596
2597 case 0x10: /* KBR_LATCH */
2598 return s->row_latch;
2599
2600 case 0x14: /* KBC_REG */
2601 return s->cols;
2602
2603 case 0x18: /* GPIO_EVENT_MODE_REG */
2604 return s->event;
2605
2606 case 0x1c: /* GPIO_INT_EDGE_REG */
2607 return s->edge;
2608
2609 case 0x20: /* KBD_INT */
2610 return (~s->row_latch & 0x1f) && !s->kbd_mask;
2611
2612 case 0x24: /* GPIO_INT */
2613 ret = s->ints;
2614 s->ints &= s->mask;
2615 if (ret)
2616 qemu_irq_lower(s->irq);
2617 return ret;
2618
2619 case 0x28: /* KBD_MASKIT */
2620 return s->kbd_mask;
2621
2622 case 0x2c: /* GPIO_MASKIT */
2623 return s->mask;
2624
2625 case 0x30: /* GPIO_DEBOUNCING_REG */
2626 return s->debounce;
2627
2628 case 0x34: /* GPIO_LATCH_REG */
2629 return s->latch;
2630 }
2631
2632 OMAP_BAD_REG(addr);
2633 return 0;
2634 }
2635
2636 static void omap_mpuio_write(void *opaque, target_phys_addr_t addr,
2637 uint32_t value)
2638 {
2639 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2640 int offset = addr & OMAP_MPUI_REG_MASK;
2641 uint16_t diff;
2642 int ln;
2643
2644 switch (offset) {
2645 case 0x04: /* OUTPUT_REG */
2646 diff = (s->outputs ^ value) & ~s->dir;
2647 s->outputs = value;
2648 while ((ln = ffs(diff))) {
2649 ln --;
2650 if (s->handler[ln])
2651 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
2652 diff &= ~(1 << ln);
2653 }
2654 break;
2655
2656 case 0x08: /* IO_CNTL */
2657 diff = s->outputs & (s->dir ^ value);
2658 s->dir = value;
2659
2660 value = s->outputs & ~s->dir;
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 0x14: /* KBC_REG */
2670 s->cols = value;
2671 omap_mpuio_kbd_update(s);
2672 break;
2673
2674 case 0x18: /* GPIO_EVENT_MODE_REG */
2675 s->event = value & 0x1f;
2676 break;
2677
2678 case 0x1c: /* GPIO_INT_EDGE_REG */
2679 s->edge = value;
2680 break;
2681
2682 case 0x28: /* KBD_MASKIT */
2683 s->kbd_mask = value & 1;
2684 omap_mpuio_kbd_update(s);
2685 break;
2686
2687 case 0x2c: /* GPIO_MASKIT */
2688 s->mask = value;
2689 break;
2690
2691 case 0x30: /* GPIO_DEBOUNCING_REG */
2692 s->debounce = value & 0x1ff;
2693 break;
2694
2695 case 0x00: /* INPUT_LATCH */
2696 case 0x10: /* KBR_LATCH */
2697 case 0x20: /* KBD_INT */
2698 case 0x24: /* GPIO_INT */
2699 case 0x34: /* GPIO_LATCH_REG */
2700 OMAP_RO_REG(addr);
2701 return;
2702
2703 default:
2704 OMAP_BAD_REG(addr);
2705 return;
2706 }
2707 }
2708
2709 static CPUReadMemoryFunc *omap_mpuio_readfn[] = {
2710 omap_badwidth_read16,
2711 omap_mpuio_read,
2712 omap_badwidth_read16,
2713 };
2714
2715 static CPUWriteMemoryFunc *omap_mpuio_writefn[] = {
2716 omap_badwidth_write16,
2717 omap_mpuio_write,
2718 omap_badwidth_write16,
2719 };
2720
2721 static void omap_mpuio_reset(struct omap_mpuio_s *s)
2722 {
2723 s->inputs = 0;
2724 s->outputs = 0;
2725 s->dir = ~0;
2726 s->event = 0;
2727 s->edge = 0;
2728 s->kbd_mask = 0;
2729 s->mask = 0;
2730 s->debounce = 0;
2731 s->latch = 0;
2732 s->ints = 0;
2733 s->row_latch = 0x1f;
2734 s->clk = 1;
2735 }
2736
2737 static void omap_mpuio_onoff(void *opaque, int line, int on)
2738 {
2739 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque;
2740
2741 s->clk = on;
2742 if (on)
2743 omap_mpuio_kbd_update(s);
2744 }
2745
2746 struct omap_mpuio_s *omap_mpuio_init(target_phys_addr_t base,
2747 qemu_irq kbd_int, qemu_irq gpio_int, qemu_irq wakeup,
2748 omap_clk clk)
2749 {
2750 int iomemtype;
2751 struct omap_mpuio_s *s = (struct omap_mpuio_s *)
2752 qemu_mallocz(sizeof(struct omap_mpuio_s));
2753
2754 s->irq = gpio_int;
2755 s->kbd_irq = kbd_int;
2756 s->wakeup = wakeup;
2757 s->in = qemu_allocate_irqs(omap_mpuio_set, s, 16);
2758 omap_mpuio_reset(s);
2759
2760 iomemtype = cpu_register_io_memory(omap_mpuio_readfn,
2761 omap_mpuio_writefn, s);
2762 cpu_register_physical_memory(base, 0x800, iomemtype);
2763
2764 omap_clk_adduser(clk, qemu_allocate_irqs(omap_mpuio_onoff, s, 1)[0]);
2765
2766 return s;
2767 }
2768
2769 qemu_irq *omap_mpuio_in_get(struct omap_mpuio_s *s)
2770 {
2771 return s->in;
2772 }
2773
2774 void omap_mpuio_out_set(struct omap_mpuio_s *s, int line, qemu_irq handler)
2775 {
2776 if (line >= 16 || line < 0)
2777 hw_error("%s: No GPIO line %i\n", __FUNCTION__, line);
2778 s->handler[line] = handler;
2779 }
2780
2781 void omap_mpuio_key(struct omap_mpuio_s *s, int row, int col, int down)
2782 {
2783 if (row >= 5 || row < 0)
2784 hw_error("%s: No key %i-%i\n", __FUNCTION__, col, row);
2785
2786 if (down)
2787 s->buttons[row] |= 1 << col;
2788 else
2789 s->buttons[row] &= ~(1 << col);
2790
2791 omap_mpuio_kbd_update(s);
2792 }
2793
2794 /* General-Purpose I/O */
2795 struct omap_gpio_s {
2796 qemu_irq irq;
2797 qemu_irq *in;
2798 qemu_irq handler[16];
2799
2800 uint16_t inputs;
2801 uint16_t outputs;
2802 uint16_t dir;
2803 uint16_t edge;
2804 uint16_t mask;
2805 uint16_t ints;
2806 uint16_t pins;
2807 };
2808
2809 static void omap_gpio_set(void *opaque, int line, int level)
2810 {
2811 struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
2812 uint16_t prev = s->inputs;
2813
2814 if (level)
2815 s->inputs |= 1 << line;
2816 else
2817 s->inputs &= ~(1 << line);
2818
2819 if (((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) &
2820 (1 << line) & s->dir & ~s->mask) {
2821 s->ints |= 1 << line;
2822 qemu_irq_raise(s->irq);
2823 }
2824 }
2825
2826 static uint32_t omap_gpio_read(void *opaque, target_phys_addr_t addr)
2827 {
2828 struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
2829 int offset = addr & OMAP_MPUI_REG_MASK;
2830
2831 switch (offset) {
2832 case 0x00: /* DATA_INPUT */
2833 return s->inputs & s->pins;
2834
2835 case 0x04: /* DATA_OUTPUT */
2836 return s->outputs;
2837
2838 case 0x08: /* DIRECTION_CONTROL */
2839 return s->dir;
2840
2841 case 0x0c: /* INTERRUPT_CONTROL */
2842 return s->edge;
2843
2844 case 0x10: /* INTERRUPT_MASK */
2845 return s->mask;
2846
2847 case 0x14: /* INTERRUPT_STATUS */
2848 return s->ints;
2849
2850 case 0x18: /* PIN_CONTROL (not in OMAP310) */
2851 OMAP_BAD_REG(addr);
2852 return s->pins;
2853 }
2854
2855 OMAP_BAD_REG(addr);
2856 return 0;
2857 }
2858
2859 static void omap_gpio_write(void *opaque, target_phys_addr_t addr,
2860 uint32_t value)
2861 {
2862 struct omap_gpio_s *s = (struct omap_gpio_s *) opaque;
2863 int offset = addr & OMAP_MPUI_REG_MASK;
2864 uint16_t diff;
2865 int ln;
2866
2867 switch (offset) {
2868 case 0x00: /* DATA_INPUT */
2869 OMAP_RO_REG(addr);
2870 return;
2871
2872 case 0x04: /* DATA_OUTPUT */
2873 diff = (s->outputs ^ value) & ~s->dir;
2874 s->outputs = value;
2875 while ((ln = ffs(diff))) {
2876 ln --;
2877 if (s->handler[ln])
2878 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
2879 diff &= ~(1 << ln);
2880 }
2881 break;
2882
2883 case 0x08: /* DIRECTION_CONTROL */
2884 diff = s->outputs & (s->dir ^ value);
2885 s->dir = value;
2886
2887 value = s->outputs & ~s->dir;
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 0x0c: /* INTERRUPT_CONTROL */
2897 s->edge = value;
2898 break;
2899
2900 case 0x10: /* INTERRUPT_MASK */
2901 s->mask = value;
2902 break;
2903
2904 case 0x14: /* INTERRUPT_STATUS */
2905 s->ints &= ~value;
2906 if (!s->ints)
2907 qemu_irq_lower(s->irq);
2908 break;
2909
2910 case 0x18: /* PIN_CONTROL (not in OMAP310 TRM) */
2911 OMAP_BAD_REG(addr);
2912 s->pins = value;
2913 break;
2914
2915 default:
2916 OMAP_BAD_REG(addr);
2917 return;
2918 }
2919 }
2920
2921 /* *Some* sources say the memory region is 32-bit. */
2922 static CPUReadMemoryFunc *omap_gpio_readfn[] = {
2923 omap_badwidth_read16,
2924 omap_gpio_read,
2925 omap_badwidth_read16,
2926 };
2927
2928 static CPUWriteMemoryFunc *omap_gpio_writefn[] = {
2929 omap_badwidth_write16,
2930 omap_gpio_write,
2931 omap_badwidth_write16,
2932 };
2933
2934 static void omap_gpio_reset(struct omap_gpio_s *s)
2935 {
2936 s->inputs = 0;
2937 s->outputs = ~0;
2938 s->dir = ~0;
2939 s->edge = ~0;
2940 s->mask = ~0;
2941 s->ints = 0;
2942 s->pins = ~0;
2943 }
2944
2945 struct omap_gpio_s *omap_gpio_init(target_phys_addr_t base,
2946 qemu_irq irq, omap_clk clk)
2947 {
2948 int iomemtype;
2949 struct omap_gpio_s *s = (struct omap_gpio_s *)
2950 qemu_mallocz(sizeof(struct omap_gpio_s));
2951
2952 s->irq = irq;
2953 s->in = qemu_allocate_irqs(omap_gpio_set, s, 16);
2954 omap_gpio_reset(s);
2955
2956 iomemtype = cpu_register_io_memory(omap_gpio_readfn,
2957 omap_gpio_writefn, s);
2958 cpu_register_physical_memory(base, 0x1000, iomemtype);
2959
2960 return s;
2961 }
2962
2963 qemu_irq *omap_gpio_in_get(struct omap_gpio_s *s)
2964 {
2965 return s->in;
2966 }
2967
2968 void omap_gpio_out_set(struct omap_gpio_s *s, int line, qemu_irq handler)
2969 {
2970 if (line >= 16 || line < 0)
2971 hw_error("%s: No GPIO line %i\n", __FUNCTION__, line);
2972 s->handler[line] = handler;
2973 }
2974
2975 /* MicroWire Interface */
2976 struct omap_uwire_s {
2977 qemu_irq txirq;
2978 qemu_irq rxirq;
2979 qemu_irq txdrq;
2980
2981 uint16_t txbuf;
2982 uint16_t rxbuf;
2983 uint16_t control;
2984 uint16_t setup[5];
2985
2986 uWireSlave *chip[4];
2987 };
2988
2989 static void omap_uwire_transfer_start(struct omap_uwire_s *s)
2990 {
2991 int chipselect = (s->control >> 10) & 3; /* INDEX */
2992 uWireSlave *slave = s->chip[chipselect];
2993
2994 if ((s->control >> 5) & 0x1f) { /* NB_BITS_WR */
2995 if (s->control & (1 << 12)) /* CS_CMD */
2996 if (slave && slave->send)
2997 slave->send(slave->opaque,
2998 s->txbuf >> (16 - ((s->control >> 5) & 0x1f)));
2999 s->control &= ~(1 << 14); /* CSRB */
3000 /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or
3001 * a DRQ. When is the level IRQ supposed to be reset? */
3002 }
3003
3004 if ((s->control >> 0) & 0x1f) { /* NB_BITS_RD */
3005 if (s->control & (1 << 12)) /* CS_CMD */
3006 if (slave && slave->receive)
3007 s->rxbuf = slave->receive(slave->opaque);
3008 s->control |= 1 << 15; /* RDRB */
3009 /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or
3010 * a DRQ. When is the level IRQ supposed to be reset? */
3011 }
3012 }
3013
3014 static uint32_t omap_uwire_read(void *opaque, target_phys_addr_t addr)
3015 {
3016 struct omap_uwire_s *s = (struct omap_uwire_s *) opaque;
3017 int offset = addr & OMAP_MPUI_REG_MASK;
3018
3019 switch (offset) {
3020 case 0x00: /* RDR */
3021 s->control &= ~(1 << 15); /* RDRB */
3022 return s->rxbuf;
3023
3024 case 0x04: /* CSR */
3025 return s->control;
3026
3027 case 0x08: /* SR1 */
3028 return s->setup[0];
3029 case 0x0c: /* SR2 */
3030 return s->setup[1];
3031 case 0x10: /* SR3 */
3032 return s->setup[2];
3033 case 0x14: /* SR4 */
3034 return s->setup[3];
3035 case 0x18: /* SR5 */
3036 return s->setup[4];
3037 }
3038
3039 OMAP_BAD_REG(addr);
3040 return 0;
3041 }
3042
3043 static void omap_uwire_write(void *opaque, target_phys_addr_t addr,
3044 uint32_t value)
3045 {
3046 struct omap_uwire_s *s = (struct omap_uwire_s *) opaque;
3047 int offset = addr & OMAP_MPUI_REG_MASK;
3048
3049 switch (offset) {
3050 case 0x00: /* TDR */
3051 s->txbuf = value; /* TD */
3052 if ((s->setup[4] & (1 << 2)) && /* AUTO_TX_EN */
3053 ((s->setup[4] & (1 << 3)) || /* CS_TOGGLE_TX_EN */
3054 (s->control & (1 << 12)))) { /* CS_CMD */
3055 s->control |= 1 << 14; /* CSRB */
3056 omap_uwire_transfer_start(s);
3057 }
3058 break;
3059
3060 case 0x04: /* CSR */
3061 s->control = value & 0x1fff;
3062 if (value & (1 << 13)) /* START */
3063 omap_uwire_transfer_start(s);
3064 break;
3065
3066 case 0x08: /* SR1 */
3067 s->setup[0] = value & 0x003f;
3068 break;
3069
3070 case 0x0c: /* SR2 */
3071 s->setup[1] = value & 0x0fc0;
3072 break;
3073
3074 case 0x10: /* SR3 */
3075 s->setup[2] = value & 0x0003;
3076 break;
3077
3078 case 0x14: /* SR4 */
3079 s->setup[3] = value & 0x0001;
3080 break;
3081
3082 case 0x18: /* SR5 */
3083 s->setup[4] = value & 0x000f;
3084 break;
3085
3086 default:
3087 OMAP_BAD_REG(addr);
3088 return;
3089 }
3090 }
3091
3092 static CPUReadMemoryFunc *omap_uwire_readfn[] = {
3093 omap_badwidth_read16,
3094 omap_uwire_read,
3095 omap_badwidth_read16,
3096 };
3097
3098 static CPUWriteMemoryFunc *omap_uwire_writefn[] = {
3099 omap_badwidth_write16,
3100 omap_uwire_write,
3101 omap_badwidth_write16,
3102 };
3103
3104 static void omap_uwire_reset(struct omap_uwire_s *s)
3105 {
3106 s->control = 0;
3107 s->setup[0] = 0;
3108 s->setup[1] = 0;
3109 s->setup[2] = 0;
3110 s->setup[3] = 0;
3111 s->setup[4] = 0;
3112 }
3113
3114 struct omap_uwire_s *omap_uwire_init(target_phys_addr_t base,
3115 qemu_irq *irq, qemu_irq dma, omap_clk clk)
3116 {
3117 int iomemtype;
3118 struct omap_uwire_s *s = (struct omap_uwire_s *)
3119 qemu_mallocz(sizeof(struct omap_uwire_s));
3120
3121 s->txirq = irq[0];
3122 s->rxirq = irq[1];
3123 s->txdrq = dma;
3124 omap_uwire_reset(s);
3125
3126 iomemtype = cpu_register_io_memory(omap_uwire_readfn,
3127 omap_uwire_writefn, s);
3128 cpu_register_physical_memory(base, 0x800, iomemtype);
3129
3130 return s;
3131 }
3132
3133 void omap_uwire_attach(struct omap_uwire_s *s,
3134 uWireSlave *slave, int chipselect)
3135 {
3136 if (chipselect < 0 || chipselect > 3) {
3137 fprintf(stderr, "%s: Bad chipselect %i\n", __FUNCTION__, chipselect);
3138 exit(-1);
3139 }
3140
3141 s->chip[chipselect] = slave;
3142 }
3143
3144 /* Pseudonoise Pulse-Width Light Modulator */
3145 static void omap_pwl_update(struct omap_mpu_state_s *s)
3146 {
3147 int output = (s->pwl.clk && s->pwl.enable) ? s->pwl.level : 0;
3148
3149 if (output != s->pwl.output) {
3150 s->pwl.output = output;
3151 printf("%s: Backlight now at %i/256\n", __FUNCTION__, output);
3152 }
3153 }
3154
3155 static uint32_t omap_pwl_read(void *opaque, target_phys_addr_t addr)
3156 {
3157 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3158 int offset = addr & OMAP_MPUI_REG_MASK;
3159
3160 switch (offset) {
3161 case 0x00: /* PWL_LEVEL */
3162 return s->pwl.level;
3163 case 0x04: /* PWL_CTRL */
3164 return s->pwl.enable;
3165 }
3166 OMAP_BAD_REG(addr);
3167 return 0;
3168 }
3169
3170 static void omap_pwl_write(void *opaque, target_phys_addr_t addr,
3171 uint32_t value)
3172 {
3173 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3174 int offset = addr & OMAP_MPUI_REG_MASK;
3175
3176 switch (offset) {
3177 case 0x00: /* PWL_LEVEL */
3178 s->pwl.level = value;
3179 omap_pwl_update(s);
3180 break;
3181 case 0x04: /* PWL_CTRL */
3182 s->pwl.enable = value & 1;
3183 omap_pwl_update(s);
3184 break;
3185 default:
3186 OMAP_BAD_REG(addr);
3187 return;
3188 }
3189 }
3190
3191 static CPUReadMemoryFunc *omap_pwl_readfn[] = {
3192 omap_pwl_read,
3193 omap_badwidth_read8,
3194 omap_badwidth_read8,
3195 };
3196
3197 static CPUWriteMemoryFunc *omap_pwl_writefn[] = {
3198 omap_pwl_write,
3199 omap_badwidth_write8,
3200 omap_badwidth_write8,
3201 };
3202
3203 static void omap_pwl_reset(struct omap_mpu_state_s *s)
3204 {
3205 s->pwl.output = 0;
3206 s->pwl.level = 0;
3207 s->pwl.enable = 0;
3208 s->pwl.clk = 1;
3209 omap_pwl_update(s);
3210 }
3211
3212 static void omap_pwl_clk_update(void *opaque, int line, int on)
3213 {
3214 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3215
3216 s->pwl.clk = on;
3217 omap_pwl_update(s);
3218 }
3219
3220 static void omap_pwl_init(target_phys_addr_t base, struct omap_mpu_state_s *s,
3221 omap_clk clk)
3222 {
3223 int iomemtype;
3224
3225 omap_pwl_reset(s);
3226
3227 iomemtype = cpu_register_io_memory(omap_pwl_readfn,
3228 omap_pwl_writefn, s);
3229 cpu_register_physical_memory(base, 0x800, iomemtype);
3230
3231 omap_clk_adduser(clk, qemu_allocate_irqs(omap_pwl_clk_update, s, 1)[0]);
3232 }
3233
3234 /* Pulse-Width Tone module */
3235 static uint32_t omap_pwt_read(void *opaque, target_phys_addr_t addr)
3236 {
3237 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3238 int offset = addr & OMAP_MPUI_REG_MASK;
3239
3240 switch (offset) {
3241 case 0x00: /* FRC */
3242 return s->pwt.frc;
3243 case 0x04: /* VCR */
3244 return s->pwt.vrc;
3245 case 0x08: /* GCR */
3246 return s->pwt.gcr;
3247 }
3248 OMAP_BAD_REG(addr);
3249 return 0;
3250 }
3251
3252 static void omap_pwt_write(void *opaque, target_phys_addr_t addr,
3253 uint32_t value)
3254 {
3255 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
3256 int offset = addr & OMAP_MPUI_REG_MASK;
3257
3258 switch (offset) {
3259 case 0x00: /* FRC */
3260 s->pwt.frc = value & 0x3f;
3261 break;
3262 case 0x04: /* VRC */
3263 if ((value ^ s->pwt.vrc) & 1) {
3264 if (value & 1)
3265 printf("%s: %iHz buzz on\n", __FUNCTION__, (int)
3266 /* 1.5 MHz from a 12-MHz or 13-MHz PWT_CLK */
3267 ((omap_clk_getrate(s->pwt.clk) >> 3) /
3268 /* Pre-multiplexer divider */
3269 ((s->pwt.gcr & 2) ? 1 : 154) /
3270 /* Octave multiplexer */
3271 (2 << (value & 3)) *
3272 /* 101/107 divider */
3273 ((value & (1 << 2)) ? 101 : 107) *
3274 /* 49/55 divider */
3275 ((value & (1 << 3)) ? 49 : 55) *
3276 /* 50/63 divider */
3277 ((value & (1 << 4)) ? 50 : 63) *
3278 /* 80/127 divider */
3279 ((value & (1 << 5)) ? 80 : 127) /
3280 (107 * 55 * 63 * 127)));
3281 else
3282 printf("%s: silence!\n", __FUNCTION__);
3283 }
3284 s->pwt.vrc = value & 0x7f;
3285 break;
3286 case 0x08: /* GCR */
3287 s->pwt.gcr = value & 3;
3288 break;
3289 default:
3290 OMAP_BAD_REG(addr);
3291 return;
3292 }
3293 }
3294
3295 static CPUReadMemoryFunc *omap_pwt_readfn[] = {
3296 omap_pwt_read,
3297 omap_badwidth_read8,
3298 omap_badwidth_read8,
3299 };
3300
3301 static CPUWriteMemoryFunc *omap_pwt_writefn[] = {
3302 omap_pwt_write,
3303 omap_badwidth_write8,
3304 omap_badwidth_write8,
3305 };
3306
3307 static void omap_pwt_reset(struct omap_mpu_state_s *s)
3308 {
3309 s->pwt.frc = 0;
3310 s->pwt.vrc = 0;
3311 s->pwt.gcr = 0;
3312 }
3313
3314 static void omap_pwt_init(target_phys_addr_t base, struct omap_mpu_state_s *s,
3315 omap_clk clk)
3316 {
3317 int iomemtype;
3318
3319 s->pwt.clk = clk;
3320 omap_pwt_reset(s);
3321
3322 iomemtype = cpu_register_io_memory(omap_pwt_readfn,
3323 omap_pwt_writefn, s);
3324 cpu_register_physical_memory(base, 0x800, iomemtype);
3325 }
3326
3327 /* Real-time Clock module */
3328 struct omap_rtc_s {
3329 qemu_irq irq;
3330 qemu_irq alarm;
3331 QEMUTimer *clk;
3332
3333 uint8_t interrupts;
3334 uint8_t status;
3335 int16_t comp_reg;
3336 int running;
3337 int pm_am;
3338 int auto_comp;
3339 int round;
3340 struct tm alarm_tm;
3341 time_t alarm_ti;
3342
3343 struct tm current_tm;
3344 time_t ti;
3345 uint64_t tick;
3346 };
3347
3348 static void omap_rtc_interrupts_update(struct omap_rtc_s *s)
3349 {
3350 /* s->alarm is level-triggered */
3351 qemu_set_irq(s->alarm, (s->status >> 6) & 1);
3352 }
3353
3354 static void omap_rtc_alarm_update(struct omap_rtc_s *s)
3355 {
3356 s->alarm_ti = mktimegm(&s->alarm_tm);
3357 if (s->alarm_ti == -1)
3358 printf("%s: conversion failed\n", __FUNCTION__);
3359 }
3360
3361 static inline uint8_t omap_rtc_bcd(int num)
3362 {
3363 return ((num / 10) << 4) | (num % 10);
3364 }
3365
3366 static inline int omap_rtc_bin(uint8_t num)
3367 {
3368 return (num & 15) + 10 * (num >> 4);
3369 }
3370
3371 static uint32_t omap_rtc_read(void *opaque, target_phys_addr_t addr)
3372 {
3373 struct omap_rtc_s *s = (struct omap_rtc_s *) opaque;
3374 int offset = addr & OMAP_MPUI_REG_MASK;
3375 uint8_t i;
3376
3377 switch (offset) {
3378 case 0x00: /* SECONDS_REG */
3379 return omap_rtc_bcd(s->current_tm.tm_sec);
3380
3381 case 0x04: /* MINUTES_REG */
3382 return omap_rtc_bcd(s->current_tm.tm_min);
3383
3384 case 0x08: /* HOURS_REG */
3385 if (s->pm_am)
3386 return ((s->current_tm.tm_hour > 11) << 7) |
3387 omap_rtc_bcd(((s->current_tm.tm_hour - 1) % 12) + 1);
3388 else
3389 return omap_rtc_bcd(s->current_tm.tm_hour);
3390
3391 case 0x0c: /* DAYS_REG */
3392 return omap_rtc_bcd(s->current_tm.tm_mday);
3393
3394 case 0x10: /* MONTHS_REG */
3395 return omap_rtc_bcd(s->current_tm.tm_mon + 1);
3396
3397 case 0x14: /* YEARS_REG */
3398 return omap_rtc_bcd(s->current_tm.tm_year % 100);
3399
3400 case 0x18: /* WEEK_REG */
3401 return s->current_tm.tm_wday;
3402
3403 case 0x20: /* ALARM_SECONDS_REG */
3404 return omap_rtc_bcd(s->alarm_tm.tm_sec);
3405
3406 case 0x24: /* ALARM_MINUTES_REG */
3407 return omap_rtc_bcd(s->alarm_tm.tm_min);
3408
3409 case 0x28: /* ALARM_HOURS_REG */
3410 if (s->pm_am)
3411 return ((s->alarm_tm.tm_hour > 11) << 7) |
3412 omap_rtc_bcd(((s->alarm_tm.tm_hour - 1) % 12) + 1);
3413 else
3414 return omap_rtc_bcd(s->alarm_tm.tm_hour);
3415
3416 case 0x2c: /* ALARM_DAYS_REG */
3417 return omap_rtc_bcd(s->alarm_tm.tm_mday);
3418
3419 case 0x30: /* ALARM_MONTHS_REG */
3420 return omap_rtc_bcd(s->alarm_tm.tm_mon + 1);
3421
3422 case 0x34: /* ALARM_YEARS_REG */
3423 return omap_rtc_bcd(s->alarm_tm.tm_year % 100);
3424
3425 case 0x40: /* RTC_CTRL_REG */
3426 return (s->pm_am << 3) | (s->auto_comp << 2) |
3427 (s->round << 1) | s->running;
3428
3429 case 0x44: /* RTC_STATUS_REG */
3430 i = s->status;
3431 s->status &= ~0x3d;
3432 return i;
3433
3434 case 0x48: /* RTC_INTERRUPTS_REG */
3435 return s->interrupts;
3436
3437 case 0x4c: /* RTC_COMP_LSB_REG */
3438 return ((uint16_t) s->comp_reg) & 0xff;
3439
3440 case 0x50: /* RTC_COMP_MSB_REG */
3441 return ((uint16_t) s->comp_reg) >> 8;
3442 }
3443
3444 OMAP_BAD_REG(addr);
3445 return 0;
3446 }
3447
3448 static void omap_rtc_write(void *opaque, target_phys_addr_t addr,
3449 uint32_t value)
3450 {
3451 struct omap_rtc_s *s = (struct omap_rtc_s *) opaque;
3452 int offset = addr & OMAP_MPUI_REG_MASK;
3453 struct tm new_tm;
3454 time_t ti[2];
3455
3456 switch (offset) {
3457 case 0x00: /* SECONDS_REG */
3458 #ifdef ALMDEBUG
3459 printf("RTC SEC_REG <-- %02x\n", value);
3460 #endif
3461 s->ti -= s->current_tm.tm_sec;
3462 s->ti += omap_rtc_bin(value);
3463 return;
3464
3465 case 0x04: /* MINUTES_REG */
3466 #ifdef ALMDEBUG
3467 printf("RTC MIN_REG <-- %02x\n", value);
3468 #endif
3469 s->ti -= s->current_tm.tm_min * 60;
3470 s->ti += omap_rtc_bin(value) * 60;
3471 return;
3472
3473 case 0x08: /* HOURS_REG */
3474 #ifdef ALMDEBUG
3475 printf("RTC HRS_REG <-- %02x\n", value);
3476 #endif
3477 s->ti -= s->current_tm.tm_hour * 3600;
3478 if (s->pm_am) {
3479 s->ti += (omap_rtc_bin(value & 0x3f) & 12) * 3600;
3480 s->ti += ((value >> 7) & 1) * 43200;
3481 } else
3482 s->ti += omap_rtc_bin(value & 0x3f) * 3600;
3483 return;
3484
3485 case 0x0c: /* DAYS_REG */
3486 #ifdef ALMDEBUG
3487 printf("RTC DAY_REG <-- %02x\n", value);
3488 #endif
3489 s->ti -= s->current_tm.tm_mday * 86400;
3490 s->ti += omap_rtc_bin(value) * 86400;
3491 return;
3492
3493 case 0x10: /* MONTHS_REG */
3494 #ifdef ALMDEBUG
3495 printf("RTC MTH_REG <-- %02x\n", value);
3496 #endif
3497 memcpy(&new_tm, &s->current_tm, sizeof(new_tm));
3498 new_tm.tm_mon = omap_rtc_bin(value);
3499 ti[0] = mktimegm(&s->current_tm);
3500 ti[1] = mktimegm(&new_tm);
3501
3502 if (ti[0] != -1 && ti[1] != -1) {
3503 s->ti -= ti[0];
3504 s->ti += ti[1];
3505 } else {
3506 /* A less accurate version */
3507 s->ti -= s->current_tm.tm_mon * 2592000;
3508 s->ti += omap_rtc_bin(value) * 2592000;
3509 }
3510 return;
3511
3512 case 0x14: /* YEARS_REG */
3513 #ifdef ALMDEBUG
3514 printf("RTC YRS_REG <-- %02x\n", value);
3515 #endif
3516 memcpy(&new_tm, &s->current_tm, sizeof(new_tm));
3517 new_tm.tm_year += omap_rtc_bin(value) - (new_tm.tm_year % 100);
3518 ti[0] = mktimegm(&s->current_tm);
3519 ti[1] = mktimegm(&new_tm);
3520
3521 if (ti[0] != -1 && ti[1] != -1) {
3522 s->ti -= ti[0];
3523 s->ti += ti[1];
3524 } else {
3525 /* A less accurate version */
3526 s->ti -= (s->current_tm.tm_year % 100) * 31536000;
3527 s->ti += omap_rtc_bin(value) * 31536000;
3528 }
3529 return;
3530
3531 case 0x18: /* WEEK_REG */
3532 return; /* Ignored */
3533
3534 case 0x20: /* ALARM_SECONDS_REG */
3535 #ifdef ALMDEBUG
3536 printf("ALM SEC_REG <-- %02x\n", value);
3537 #endif
3538 s->alarm_tm.tm_sec = omap_rtc_bin(value);
3539 omap_rtc_alarm_update(s);
3540 return;
3541
3542 case 0x24: /* ALARM_MINUTES_REG */
3543 #ifdef ALMDEBUG
3544 printf("ALM MIN_REG <-- %02x\n", value);
3545 #endif
3546 s->alarm_tm.tm_min = omap_rtc_bin(value);
3547 omap_rtc_alarm_update(s);
3548 return;
3549
3550 case 0x28: /* ALARM_HOURS_REG */
3551 #ifdef ALMDEBUG
3552 printf("ALM HRS_REG <-- %02x\n", value);
3553 #endif
3554 if (s->pm_am)
3555 s->alarm_tm.tm_hour =
3556 ((omap_rtc_bin(value & 0x3f)) % 12) +
3557 ((value >> 7) & 1) * 12;
3558 else
3559 s->alarm_tm.tm_hour = omap_rtc_bin(value);
3560 omap_rtc_alarm_update(s);
3561 return;
3562
3563 case 0x2c: /* ALARM_DAYS_REG */
3564 #ifdef ALMDEBUG
3565 printf("ALM DAY_REG <-- %02x\n", value);
3566 #endif
3567 s->alarm_tm.tm_mday = omap_rtc_bin(value);
3568 omap_rtc_alarm_update(s);
3569 return;
3570
3571 case 0x30: /* ALARM_MONTHS_REG */
3572 #ifdef ALMDEBUG
3573 printf("ALM MON_REG <-- %02x\n", value);
3574 #endif
3575 s->alarm_tm.tm_mon = omap_rtc_bin(value);
3576 omap_rtc_alarm_update(s);
3577 return;
3578
3579 case 0x34: /* ALARM_YEARS_REG */
3580 #ifdef ALMDEBUG
3581 printf("ALM YRS_REG <-- %02x\n", value);
3582 #endif
3583 s->alarm_tm.tm_year = omap_rtc_bin(value);
3584 omap_rtc_alarm_update(s);
3585 return;
3586
3587 case 0x40: /* RTC_CTRL_REG */
3588 #ifdef ALMDEBUG
3589 printf("RTC CONTROL <-- %02x\n", value);
3590 #endif
3591 s->pm_am = (value >> 3) & 1;
3592 s->auto_comp = (value >> 2) & 1;
3593 s->round = (value >> 1) & 1;
3594 s->running = value & 1;
3595 s->status &= 0xfd;
3596 s->status |= s->running << 1;
3597 return;
3598
3599 case 0x44: /* RTC_STATUS_REG */
3600 #ifdef ALMDEBUG
3601 printf("RTC STATUSL <-- %02x\n", value);
3602 #endif
3603 s->status &= ~((value & 0xc0) ^ 0x80);
3604 omap_rtc_interrupts_update(s);
3605 return;
3606
3607 case 0x48: /* RTC_INTERRUPTS_REG */
3608 #ifdef ALMDEBUG
3609 printf("RTC INTRS <-- %02x\n", value);
3610 #endif
3611 s->interrupts = value;
3612 return;
3613
3614 case 0x4c: /* RTC_COMP_LSB_REG */
3615 #ifdef ALMDEBUG
3616 printf("RTC COMPLSB <-- %02x\n", value);
3617 #endif
3618 s->comp_reg &= 0xff00;
3619 s->comp_reg |= 0x00ff & value;
3620 return;
3621
3622 case 0x50: /* RTC_COMP_MSB_REG */
3623 #ifdef ALMDEBUG
3624 printf("RTC COMPMSB <-- %02x\n", value);
3625 #endif
3626 s->comp_reg &= 0x00ff;
3627 s->comp_reg |= 0xff00 & (value << 8);
3628 return;
3629
3630 default:
3631 OMAP_BAD_REG(addr);
3632 return;
3633 }
3634 }
3635
3636 static CPUReadMemoryFunc *omap_rtc_readfn[] = {
3637 omap_rtc_read,
3638 omap_badwidth_read8,
3639 omap_badwidth_read8,
3640 };
3641
3642 static CPUWriteMemoryFunc *omap_rtc_writefn[] = {
3643 omap_rtc_write,
3644 omap_badwidth_write8,
3645 omap_badwidth_write8,
3646 };
3647
3648 static void omap_rtc_tick(void *opaque)
3649 {
3650 struct omap_rtc_s *s = opaque;
3651
3652 if (s->round) {
3653 /* Round to nearest full minute. */
3654 if (s->current_tm.tm_sec < 30)
3655 s->ti -= s->current_tm.tm_sec;
3656 else
3657 s->ti += 60 - s->current_tm.tm_sec;
3658
3659 s->round = 0;
3660 }
3661
3662 memcpy(&s->current_tm, localtime(&s->ti), sizeof(s->current_tm));
3663
3664 if ((s->interrupts & 0x08) && s->ti == s->alarm_ti) {
3665 s->status |= 0x40;
3666 omap_rtc_interrupts_update(s);
3667 }
3668
3669 if (s->interrupts & 0x04)
3670 switch (s->interrupts & 3) {
3671 case 0:
3672 s->status |= 0x04;
3673 qemu_irq_pulse(s->irq);
3674 break;
3675 case 1:
3676 if (s->current_tm.tm_sec)
3677 break;
3678 s->status |= 0x08;
3679 qemu_irq_pulse(s->irq);
3680 break;
3681 case 2:
3682 if (s->current_tm.tm_sec || s->current_tm.tm_min)
3683 break;
3684 s->status |= 0x10;
3685 qemu_irq_pulse(s->irq);
3686 break;
3687 case 3:
3688 if (s->current_tm.tm_sec ||
3689 s->current_tm.tm_min || s->current_tm.tm_hour)
3690 break;
3691 s->status |= 0x20;
3692 qemu_irq_pulse(s->irq);
3693 break;
3694 }
3695
3696 /* Move on */
3697 if (s->running)
3698 s->ti ++;
3699 s->tick += 1000;
3700
3701 /*
3702 * Every full hour add a rough approximation of the compensation
3703 * register to the 32kHz Timer (which drives the RTC) value.
3704 */
3705 if (s->auto_comp && !s->current_tm.tm_sec && !s->current_tm.tm_min)
3706 s->tick += s->comp_reg * 1000 / 32768;
3707
3708 qemu_mod_timer(s->clk, s->tick);
3709 }
3710
3711 static void omap_rtc_reset(struct omap_rtc_s *s)
3712 {
3713 struct tm tm;
3714
3715 s->interrupts = 0;
3716 s->comp_reg = 0;
3717 s->running = 0;
3718 s->pm_am = 0;
3719 s->auto_comp = 0;
3720 s->round = 0;
3721 s->tick = qemu_get_clock(rt_clock);
3722 memset(&s->alarm_tm, 0, sizeof(s->alarm_tm));
3723 s->alarm_tm.tm_mday = 0x01;
3724 s->status = 1 << 7;
3725 qemu_get_timedate(&tm, 0);
3726 s->ti = mktimegm(&tm);
3727
3728 omap_rtc_alarm_update(s);
3729 omap_rtc_tick(s);
3730 }
3731
3732 struct omap_rtc_s *omap_rtc_init(target_phys_addr_t base,
3733 qemu_irq *irq, omap_clk clk)
3734 {
3735 int iomemtype;
3736 struct omap_rtc_s *s = (struct omap_rtc_s *)
3737 qemu_mallocz(sizeof(struct omap_rtc_s));
3738
3739 s->irq = irq[0];
3740 s->alarm = irq[1];
3741 s->clk = qemu_new_timer(rt_clock, omap_rtc_tick, s);
3742
3743 omap_rtc_reset(s);
3744
3745 iomemtype = cpu_register_io_memory(omap_rtc_readfn,
3746 omap_rtc_writefn, s);
3747 cpu_register_physical_memory(base, 0x800, iomemtype);
3748
3749 return s;
3750 }
3751
3752 /* Multi-channel Buffered Serial Port interfaces */
3753 struct omap_mcbsp_s {
3754 qemu_irq txirq;
3755 qemu_irq rxirq;
3756 qemu_irq txdrq;
3757 qemu_irq rxdrq;
3758
3759 uint16_t spcr[2];
3760 uint16_t rcr[2];
3761 uint16_t xcr[2];
3762 uint16_t srgr[2];
3763 uint16_t mcr[2];
3764 uint16_t pcr;
3765 uint16_t rcer[8];
3766 uint16_t xcer[8];
3767 int tx_rate;
3768 int rx_rate;
3769 int tx_req;
3770 int rx_req;
3771
3772 I2SCodec *codec;
3773 QEMUTimer *source_timer;
3774 QEMUTimer *sink_timer;
3775 };
3776
3777 static void omap_mcbsp_intr_update(struct omap_mcbsp_s *s)
3778 {
3779 int irq;
3780
3781 switch ((s->spcr[0] >> 4) & 3) { /* RINTM */
3782 case 0:
3783 irq = (s->spcr[0] >> 1) & 1; /* RRDY */
3784 break;
3785 case 3:
3786 irq = (s->spcr[0] >> 3) & 1; /* RSYNCERR */
3787 break;
3788 default:
3789 irq = 0;
3790 break;
3791 }
3792
3793 if (irq)
3794 qemu_irq_pulse(s->rxirq);
3795
3796 switch ((s->spcr[1] >> 4) & 3) { /* XINTM */
3797 case 0:
3798 irq = (s->spcr[1] >> 1) & 1; /* XRDY */
3799 break;
3800 case 3:
3801 irq = (s->spcr[1] >> 3) & 1; /* XSYNCERR */
3802 break;
3803 default:
3804 irq = 0;
3805 break;
3806 }
3807
3808 if (irq)
3809 qemu_irq_pulse(s->txirq);
3810 }
3811
3812 static void omap_mcbsp_rx_newdata(struct omap_mcbsp_s *s)
3813 {
3814 if ((s->spcr[0] >> 1) & 1) /* RRDY */
3815 s->spcr[0] |= 1 << 2; /* RFULL */
3816 s->spcr[0] |= 1 << 1; /* RRDY */
3817 qemu_irq_raise(s->rxdrq);
3818 omap_mcbsp_intr_update(s);
3819 }
3820
3821 static void omap_mcbsp_source_tick(void *opaque)
3822 {
3823 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
3824 static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 };
3825
3826 if (!s->rx_rate)
3827 return;
3828 if (s->rx_req)
3829 printf("%s: Rx FIFO overrun\n", __FUNCTION__);
3830
3831 s->rx_req = s->rx_rate << bps[(s->rcr[0] >> 5) & 7];
3832
3833 omap_mcbsp_rx_newdata(s);
3834 qemu_mod_timer(s->source_timer, qemu_get_clock(vm_clock) + ticks_per_sec);
3835 }
3836
3837 static void omap_mcbsp_rx_start(struct omap_mcbsp_s *s)
3838 {
3839 if (!s->codec || !s->codec->rts)
3840 omap_mcbsp_source_tick(s);
3841 else if (s->codec->in.len) {
3842 s->rx_req = s->codec->in.len;
3843 omap_mcbsp_rx_newdata(s);
3844 }
3845 }
3846
3847 static void omap_mcbsp_rx_stop(struct omap_mcbsp_s *s)
3848 {
3849 qemu_del_timer(s->source_timer);
3850 }
3851
3852 static void omap_mcbsp_rx_done(struct omap_mcbsp_s *s)
3853 {
3854 s->spcr[0] &= ~(1 << 1); /* RRDY */
3855 qemu_irq_lower(s->rxdrq);
3856 omap_mcbsp_intr_update(s);
3857 }
3858
3859 static void omap_mcbsp_tx_newdata(struct omap_mcbsp_s *s)
3860 {
3861 s->spcr[1] |= 1 << 1; /* XRDY */
3862 qemu_irq_raise(s->txdrq);
3863 omap_mcbsp_intr_update(s);
3864 }
3865
3866 static void omap_mcbsp_sink_tick(void *opaque)
3867 {
3868 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
3869 static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 };
3870
3871 if (!s->tx_rate)
3872 return;
3873 if (s->tx_req)
3874 printf("%s: Tx FIFO underrun\n", __FUNCTION__);
3875
3876 s->tx_req = s->tx_rate << bps[(s->xcr[0] >> 5) & 7];
3877
3878 omap_mcbsp_tx_newdata(s);
3879 qemu_mod_timer(s->sink_timer, qemu_get_clock(vm_clock) + ticks_per_sec);
3880 }
3881
3882 static void omap_mcbsp_tx_start(struct omap_mcbsp_s *s)
3883 {
3884 if (!s->codec || !s->codec->cts)
3885 omap_mcbsp_sink_tick(s);
3886 else if (s->codec->out.size) {
3887 s->tx_req = s->codec->out.size;
3888 omap_mcbsp_tx_newdata(s);
3889 }
3890 }
3891
3892 static void omap_mcbsp_tx_done(struct omap_mcbsp_s *s)
3893 {
3894 s->spcr[1] &= ~(1 << 1); /* XRDY */
3895 qemu_irq_lower(s->txdrq);
3896 omap_mcbsp_intr_update(s);
3897 if (s->codec && s->codec->cts)
3898 s->codec->tx_swallow(s->codec->opaque);
3899 }
3900
3901 static void omap_mcbsp_tx_stop(struct omap_mcbsp_s *s)
3902 {
3903 s->tx_req = 0;
3904 omap_mcbsp_tx_done(s);
3905 qemu_del_timer(s->sink_timer);
3906 }
3907
3908 static void omap_mcbsp_req_update(struct omap_mcbsp_s *s)
3909 {
3910 int prev_rx_rate, prev_tx_rate;
3911 int rx_rate = 0, tx_rate = 0;
3912 int cpu_rate = 1500000; /* XXX */
3913
3914 /* TODO: check CLKSTP bit */
3915 if (s->spcr[1] & (1 << 6)) { /* GRST */
3916 if (s->spcr[0] & (1 << 0)) { /* RRST */
3917 if ((s->srgr[1] & (1 << 13)) && /* CLKSM */
3918 (s->pcr & (1 << 8))) { /* CLKRM */
3919 if (~s->pcr & (1 << 7)) /* SCLKME */
3920 rx_rate = cpu_rate /
3921 ((s->srgr[0] & 0xff) + 1); /* CLKGDV */
3922 } else
3923 if (s->codec)
3924 rx_rate = s->codec->rx_rate;
3925 }
3926
3927 if (s->spcr[1] & (1 << 0)) { /* XRST */
3928 if ((s->srgr[1] & (1 << 13)) && /* CLKSM */
3929 (s->pcr & (1 << 9))) { /* CLKXM */
3930 if (~s->pcr & (1 << 7)) /* SCLKME */
3931 tx_rate = cpu_rate /
3932 ((s->srgr[0] & 0xff) + 1); /* CLKGDV */
3933 } else
3934 if (s->codec)
3935 tx_rate = s->codec->tx_rate;
3936 }
3937 }
3938 prev_tx_rate = s->tx_rate;
3939 prev_rx_rate = s->rx_rate;
3940 s->tx_rate = tx_rate;
3941 s->rx_rate = rx_rate;
3942
3943 if (s->codec)
3944 s->codec->set_rate(s->codec->opaque, rx_rate, tx_rate);
3945
3946 if (!prev_tx_rate && tx_rate)
3947 omap_mcbsp_tx_start(s);
3948 else if (s->tx_rate && !tx_rate)
3949 omap_mcbsp_tx_stop(s);
3950
3951 if (!prev_rx_rate && rx_rate)
3952 omap_mcbsp_rx_start(s);
3953 else if (prev_tx_rate && !tx_rate)
3954 omap_mcbsp_rx_stop(s);
3955 }
3956
3957 static uint32_t omap_mcbsp_read(void *opaque, target_phys_addr_t addr)
3958 {
3959 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
3960 int offset = addr & OMAP_MPUI_REG_MASK;
3961 uint16_t ret;
3962
3963 switch (offset) {
3964 case 0x00: /* DRR2 */
3965 if (((s->rcr[0] >> 5) & 7) < 3) /* RWDLEN1 */
3966 return 0x0000;
3967 /* Fall through. */
3968 case 0x02: /* DRR1 */
3969 if (s->rx_req < 2) {
3970 printf("%s: Rx FIFO underrun\n", __FUNCTION__);
3971 omap_mcbsp_rx_done(s);
3972 } else {
3973 s->tx_req -= 2;
3974 if (s->codec && s->codec->in.len >= 2) {
3975 ret = s->codec->in.fifo[s->codec->in.start ++] << 8;
3976 ret |= s->codec->in.fifo[s->codec->in.start ++];
3977 s->codec->in.len -= 2;
3978 } else
3979 ret = 0x0000;
3980 if (!s->tx_req)
3981 omap_mcbsp_rx_done(s);
3982 return ret;
3983 }
3984 return 0x0000;
3985
3986 case 0x04: /* DXR2 */
3987 case 0x06: /* DXR1 */
3988 return 0x0000;
3989
3990 case 0x08: /* SPCR2 */
3991 return s->spcr[1];
3992 case 0x0a: /* SPCR1 */
3993 return s->spcr[0];
3994 case 0x0c: /* RCR2 */
3995 return s->rcr[1];
3996 case 0x0e: /* RCR1 */
3997 return s->rcr[0];
3998 case 0x10: /* XCR2 */
3999 return s->xcr[1];
4000 case 0x12: /* XCR1 */
4001 return s->xcr[0];
4002 case 0x14: /* SRGR2 */
4003 return s->srgr[1];
4004 case 0x16: /* SRGR1 */
4005 return s->srgr[0];
4006 case 0x18: /* MCR2 */
4007 return s->mcr[1];
4008 case 0x1a: /* MCR1 */
4009 return s->mcr[0];
4010 case 0x1c: /* RCERA */
4011 return s->rcer[0];
4012 case 0x1e: /* RCERB */
4013 return s->rcer[1];
4014 case 0x20: /* XCERA */
4015 return s->xcer[0];
4016 case 0x22: /* XCERB */
4017 return s->xcer[1];
4018 case 0x24: /* PCR0 */
4019 return s->pcr;
4020 case 0x26: /* RCERC */
4021 return s->rcer[2];
4022 case 0x28: /* RCERD */
4023 return s->rcer[3];
4024 case 0x2a: /* XCERC */
4025 return s->xcer[2];
4026 case 0x2c: /* XCERD */
4027 return s->xcer[3];
4028 case 0x2e: /* RCERE */
4029 return s->rcer[4];
4030 case 0x30: /* RCERF */
4031 return s->rcer[5];
4032 case 0x32: /* XCERE */
4033 return s->xcer[4];
4034 case 0x34: /* XCERF */
4035 return s->xcer[5];
4036 case 0x36: /* RCERG */
4037 return s->rcer[6];
4038 case 0x38: /* RCERH */
4039 return s->rcer[7];
4040 case 0x3a: /* XCERG */
4041 return s->xcer[6];
4042 case 0x3c: /* XCERH */
4043 return s->xcer[7];
4044 }
4045
4046 OMAP_BAD_REG(addr);
4047 return 0;
4048 }
4049
4050 static void omap_mcbsp_writeh(void *opaque, target_phys_addr_t addr,
4051 uint32_t value)
4052 {
4053 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4054 int offset = addr & OMAP_MPUI_REG_MASK;
4055
4056 switch (offset) {
4057 case 0x00: /* DRR2 */
4058 case 0x02: /* DRR1 */
4059 OMAP_RO_REG(addr);
4060 return;
4061
4062 case 0x04: /* DXR2 */
4063 if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */
4064 return;
4065 /* Fall through. */
4066 case 0x06: /* DXR1 */
4067 if (s->tx_req > 1) {
4068 s->tx_req -= 2;
4069 if (s->codec && s->codec->cts) {
4070 s->codec->out.fifo[s->codec->out.len ++] = (value >> 8) & 0xff;
4071 s->codec->out.fifo[s->codec->out.len ++] = (value >> 0) & 0xff;
4072 }
4073 if (s->tx_req < 2)
4074 omap_mcbsp_tx_done(s);
4075 } else
4076 printf("%s: Tx FIFO overrun\n", __FUNCTION__);
4077 return;
4078
4079 case 0x08: /* SPCR2 */
4080 s->spcr[1] &= 0x0002;
4081 s->spcr[1] |= 0x03f9 & value;
4082 s->spcr[1] |= 0x0004 & (value << 2); /* XEMPTY := XRST */
4083 if (~value & 1) /* XRST */
4084 s->spcr[1] &= ~6;
4085 omap_mcbsp_req_update(s);
4086 return;
4087 case 0x0a: /* SPCR1 */
4088 s->spcr[0] &= 0x0006;
4089 s->spcr[0] |= 0xf8f9 & value;
4090 if (value & (1 << 15)) /* DLB */
4091 printf("%s: Digital Loopback mode enable attempt\n", __FUNCTION__);
4092 if (~value & 1) { /* RRST */
4093 s->spcr[0] &= ~6;
4094 s->rx_req = 0;
4095 omap_mcbsp_rx_done(s);
4096 }
4097 omap_mcbsp_req_update(s);
4098 return;
4099
4100 case 0x0c: /* RCR2 */
4101 s->rcr[1] = value & 0xffff;
4102 return;
4103 case 0x0e: /* RCR1 */
4104 s->rcr[0] = value & 0x7fe0;
4105 return;
4106 case 0x10: /* XCR2 */
4107 s->xcr[1] = value & 0xffff;
4108 return;
4109 case 0x12: /* XCR1 */
4110 s->xcr[0] = value & 0x7fe0;
4111 return;
4112 case 0x14: /* SRGR2 */
4113 s->srgr[1] = value & 0xffff;
4114 omap_mcbsp_req_update(s);
4115 return;
4116 case 0x16: /* SRGR1 */
4117 s->srgr[0] = value & 0xffff;
4118 omap_mcbsp_req_update(s);
4119 return;
4120 case 0x18: /* MCR2 */
4121 s->mcr[1] = value & 0x03e3;
4122 if (value & 3) /* XMCM */
4123 printf("%s: Tx channel selection mode enable attempt\n",
4124 __FUNCTION__);
4125 return;
4126 case 0x1a: /* MCR1 */
4127 s->mcr[0] = value & 0x03e1;
4128 if (value & 1) /* RMCM */
4129 printf("%s: Rx channel selection mode enable attempt\n",
4130 __FUNCTION__);
4131 return;
4132 case 0x1c: /* RCERA */
4133 s->rcer[0] = value & 0xffff;
4134 return;
4135 case 0x1e: /* RCERB */
4136 s->rcer[1] = value & 0xffff;
4137 return;
4138 case 0x20: /* XCERA */
4139 s->xcer[0] = value & 0xffff;
4140 return;
4141 case 0x22: /* XCERB */
4142 s->xcer[1] = value & 0xffff;
4143 return;
4144 case 0x24: /* PCR0 */
4145 s->pcr = value & 0x7faf;
4146 return;
4147 case 0x26: /* RCERC */
4148 s->rcer[2] = value & 0xffff;
4149 return;
4150 case 0x28: /* RCERD */
4151 s->rcer[3] = value & 0xffff;
4152 return;
4153 case 0x2a: /* XCERC */
4154 s->xcer[2] = value & 0xffff;
4155 return;
4156 case 0x2c: /* XCERD */
4157 s->xcer[3] = value & 0xffff;
4158 return;
4159 case 0x2e: /* RCERE */
4160 s->rcer[4] = value & 0xffff;
4161 return;
4162 case 0x30: /* RCERF */
4163 s->rcer[5] = value & 0xffff;
4164 return;
4165 case 0x32: /* XCERE */
4166 s->xcer[4] = value & 0xffff;
4167 return;
4168 case 0x34: /* XCERF */
4169 s->xcer[5] = value & 0xffff;
4170 return;
4171 case 0x36: /* RCERG */
4172 s->rcer[6] = value & 0xffff;
4173 return;
4174 case 0x38: /* RCERH */
4175 s->rcer[7] = value & 0xffff;
4176 return;
4177 case 0x3a: /* XCERG */
4178 s->xcer[6] = value & 0xffff;
4179 return;
4180 case 0x3c: /* XCERH */
4181 s->xcer[7] = value & 0xffff;
4182 return;
4183 }
4184
4185 OMAP_BAD_REG(addr);
4186 }
4187
4188 static void omap_mcbsp_writew(void *opaque, target_phys_addr_t addr,
4189 uint32_t value)
4190 {
4191 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4192 int offset = addr & OMAP_MPUI_REG_MASK;
4193
4194 if (offset == 0x04) { /* DXR */
4195 if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */
4196 return;
4197 if (s->tx_req > 3) {
4198 s->tx_req -= 4;
4199 if (s->codec && s->codec->cts) {
4200 s->codec->out.fifo[s->codec->out.len ++] =
4201 (value >> 24) & 0xff;
4202 s->codec->out.fifo[s->codec->out.len ++] =
4203 (value >> 16) & 0xff;
4204 s->codec->out.fifo[s->codec->out.len ++] =
4205 (value >> 8) & 0xff;
4206 s->codec->out.fifo[s->codec->out.len ++] =
4207 (value >> 0) & 0xff;
4208 }
4209 if (s->tx_req < 4)
4210 omap_mcbsp_tx_done(s);
4211 } else
4212 printf("%s: Tx FIFO overrun\n", __FUNCTION__);
4213 return;
4214 }
4215
4216 omap_badwidth_write16(opaque, addr, value);
4217 }
4218
4219 static CPUReadMemoryFunc *omap_mcbsp_readfn[] = {
4220 omap_badwidth_read16,
4221 omap_mcbsp_read,
4222 omap_badwidth_read16,
4223 };
4224
4225 static CPUWriteMemoryFunc *omap_mcbsp_writefn[] = {
4226 omap_badwidth_write16,
4227 omap_mcbsp_writeh,
4228 omap_mcbsp_writew,
4229 };
4230
4231 static void omap_mcbsp_reset(struct omap_mcbsp_s *s)
4232 {
4233 memset(&s->spcr, 0, sizeof(s->spcr));
4234 memset(&s->rcr, 0, sizeof(s->rcr));
4235 memset(&s->xcr, 0, sizeof(s->xcr));
4236 s->srgr[0] = 0x0001;
4237 s->srgr[1] = 0x2000;
4238 memset(&s->mcr, 0, sizeof(s->mcr));
4239 memset(&s->pcr, 0, sizeof(s->pcr));
4240 memset(&s->rcer, 0, sizeof(s->rcer));
4241 memset(&s->xcer, 0, sizeof(s->xcer));
4242 s->tx_req = 0;
4243 s->rx_req = 0;
4244 s->tx_rate = 0;
4245 s->rx_rate = 0;
4246 qemu_del_timer(s->source_timer);
4247 qemu_del_timer(s->sink_timer);
4248 }
4249
4250 struct omap_mcbsp_s *omap_mcbsp_init(target_phys_addr_t base,
4251 qemu_irq *irq, qemu_irq *dma, omap_clk clk)
4252 {
4253 int iomemtype;
4254 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *)
4255 qemu_mallocz(sizeof(struct omap_mcbsp_s));
4256
4257 s->txirq = irq[0];
4258 s->rxirq = irq[1];
4259 s->txdrq = dma[0];
4260 s->rxdrq = dma[1];
4261 s->sink_timer = qemu_new_timer(vm_clock, omap_mcbsp_sink_tick, s);
4262 s->source_timer = qemu_new_timer(vm_clock, omap_mcbsp_source_tick, s);
4263 omap_mcbsp_reset(s);
4264
4265 iomemtype = cpu_register_io_memory(omap_mcbsp_readfn,
4266 omap_mcbsp_writefn, s);
4267 cpu_register_physical_memory(base, 0x800, iomemtype);
4268
4269 return s;
4270 }
4271
4272 static void omap_mcbsp_i2s_swallow(void *opaque, int line, int level)
4273 {
4274 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4275
4276 if (s->rx_rate) {
4277 s->rx_req = s->codec->in.len;
4278 omap_mcbsp_rx_newdata(s);
4279 }
4280 }
4281
4282 static void omap_mcbsp_i2s_start(void *opaque, int line, int level)
4283 {
4284 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque;
4285
4286 if (s->tx_rate) {
4287 s->tx_req = s->codec->out.size;
4288 omap_mcbsp_tx_newdata(s);
4289 }
4290 }
4291
4292 void omap_mcbsp_i2s_attach(struct omap_mcbsp_s *s, I2SCodec *slave)
4293 {
4294 s->codec = slave;
4295 slave->rx_swallow = qemu_allocate_irqs(omap_mcbsp_i2s_swallow, s, 1)[0];
4296 slave->tx_start = qemu_allocate_irqs(omap_mcbsp_i2s_start, s, 1)[0];
4297 }
4298
4299 /* LED Pulse Generators */
4300 struct omap_lpg_s {
4301 QEMUTimer *tm;
4302
4303 uint8_t control;
4304 uint8_t power;
4305 int64_t on;
4306 int64_t period;
4307 int clk;
4308 int cycle;
4309 };
4310
4311 static void omap_lpg_tick(void *opaque)
4312 {
4313 struct omap_lpg_s *s = opaque;
4314
4315 if (s->cycle)
4316 qemu_mod_timer(s->tm, qemu_get_clock(rt_clock) + s->period - s->on);
4317 else
4318 qemu_mod_timer(s->tm, qemu_get_clock(rt_clock) + s->on);
4319
4320 s->cycle = !s->cycle;
4321 printf("%s: LED is %s\n", __FUNCTION__, s->cycle ? "on" : "off");
4322 }
4323
4324 static void omap_lpg_update(struct omap_lpg_s *s)
4325 {
4326 int64_t on, period = 1, ticks = 1000;
4327 static const int per[8] = { 1, 2, 4, 8, 12, 16, 20, 24 };
4328
4329 if (~s->control & (1 << 6)) /* LPGRES */
4330 on = 0;
4331 else if (s->control & (1 << 7)) /* PERM_ON */
4332 on = period;
4333 else {
4334 period = muldiv64(ticks, per[s->control & 7], /* PERCTRL */
4335 256 / 32);
4336 on = (s->clk && s->power) ? muldiv64(ticks,
4337 per[(s->control >> 3) & 7], 256) : 0; /* ONCTRL */
4338 }
4339
4340 qemu_del_timer(s->tm);
4341 if (on == period && s->on < s->period)
4342 printf("%s: LED is on\n", __FUNCTION__);
4343 else if (on == 0 && s->on)
4344 printf("%s: LED is off\n", __FUNCTION__);
4345 else if (on && (on != s->on || period != s->period)) {
4346 s->cycle = 0;
4347 s->on = on;
4348 s->period = period;
4349 omap_lpg_tick(s);
4350 return;
4351 }
4352
4353 s->on = on;
4354 s->period = period;
4355 }
4356
4357 static void omap_lpg_reset(struct omap_lpg_s *s)
4358 {
4359 s->control = 0x00;
4360 s->power = 0x00;
4361 s->clk = 1;
4362 omap_lpg_update(s);
4363 }
4364
4365 static uint32_t omap_lpg_read(void *opaque, target_phys_addr_t addr)
4366 {
4367 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque;
4368 int offset = addr & OMAP_MPUI_REG_MASK;
4369
4370 switch (offset) {
4371 case 0x00: /* LCR */
4372 return s->control;
4373
4374 case 0x04: /* PMR */
4375 return s->power;
4376 }
4377
4378 OMAP_BAD_REG(addr);
4379 return 0;
4380 }
4381
4382 static void omap_lpg_write(void *opaque, target_phys_addr_t addr,
4383 uint32_t value)
4384 {
4385 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque;
4386 int offset = addr & OMAP_MPUI_REG_MASK;
4387
4388 switch (offset) {
4389 case 0x00: /* LCR */
4390 if (~value & (1 << 6)) /* LPGRES */
4391 omap_lpg_reset(s);
4392 s->control = value & 0xff;
4393 omap_lpg_update(s);
4394 return;
4395
4396 case 0x04: /* PMR */
4397 s->power = value & 0x01;
4398 omap_lpg_update(s);
4399 return;
4400
4401 default:
4402 OMAP_BAD_REG(addr);
4403 return;
4404 }
4405 }
4406
4407 static CPUReadMemoryFunc *omap_lpg_readfn[] = {
4408 omap_lpg_read,
4409 omap_badwidth_read8,
4410 omap_badwidth_read8,
4411 };
4412
4413 static CPUWriteMemoryFunc *omap_lpg_writefn[] = {
4414 omap_lpg_write,
4415 omap_badwidth_write8,
4416 omap_badwidth_write8,
4417 };
4418
4419 static void omap_lpg_clk_update(void *opaque, int line, int on)
4420 {
4421 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque;
4422
4423 s->clk = on;
4424 omap_lpg_update(s);
4425 }
4426
4427 struct omap_lpg_s *omap_lpg_init(target_phys_addr_t base, omap_clk clk)
4428 {
4429 int iomemtype;
4430 struct omap_lpg_s *s = (struct omap_lpg_s *)
4431 qemu_mallocz(sizeof(struct omap_lpg_s));
4432
4433 s->tm = qemu_new_timer(rt_clock, omap_lpg_tick, s);
4434
4435 omap_lpg_reset(s);
4436
4437 iomemtype = cpu_register_io_memory(omap_lpg_readfn,
4438 omap_lpg_writefn, s);
4439 cpu_register_physical_memory(base, 0x800, iomemtype);
4440
4441 omap_clk_adduser(clk, qemu_allocate_irqs(omap_lpg_clk_update, s, 1)[0]);
4442
4443 return s;
4444 }
4445
4446 /* MPUI Peripheral Bridge configuration */
4447 static uint32_t omap_mpui_io_read(void *opaque, target_phys_addr_t addr)
4448 {
4449 if (addr == OMAP_MPUI_BASE) /* CMR */
4450 return 0xfe4d;
4451
4452 OMAP_BAD_REG(addr);
4453 return 0;
4454 }
4455
4456 static CPUReadMemoryFunc *omap_mpui_io_readfn[] = {
4457 omap_badwidth_read16,
4458 omap_mpui_io_read,
4459 omap_badwidth_read16,
4460 };
4461
4462 static CPUWriteMemoryFunc *omap_mpui_io_writefn[] = {
4463 omap_badwidth_write16,
4464 omap_badwidth_write16,
4465 omap_badwidth_write16,
4466 };
4467
4468 static void omap_setup_mpui_io(struct omap_mpu_state_s *mpu)
4469 {
4470 int iomemtype = cpu_register_io_memory(omap_mpui_io_readfn,
4471 omap_mpui_io_writefn, mpu);
4472 cpu_register_physical_memory(OMAP_MPUI_BASE, 0x7fff, iomemtype);
4473 }
4474
4475 /* General chip reset */
4476 static void omap1_mpu_reset(void *opaque)
4477 {
4478 struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque;
4479
4480 omap_inth_reset(mpu->ih[0]);
4481 omap_inth_reset(mpu->ih[1]);
4482 omap_dma_reset(mpu->dma);
4483 omap_mpu_timer_reset(mpu->timer[0]);
4484 omap_mpu_timer_reset(mpu->timer[1]);
4485 omap_mpu_timer_reset(mpu->timer[2]);
4486 omap_wd_timer_reset(mpu->wdt);
4487 omap_os_timer_reset(mpu->os_timer);
4488 omap_lcdc_reset(mpu->lcd);
4489 omap_ulpd_pm_reset(mpu);
4490 omap_pin_cfg_reset(mpu);
4491 omap_mpui_reset(mpu);
4492 omap_tipb_bridge_reset(mpu->private_tipb);
4493 omap_tipb_bridge_reset(mpu->public_tipb);
4494 omap_dpll_reset(&mpu->dpll[0]);
4495 omap_dpll_reset(&mpu->dpll[1]);
4496 omap_dpll_reset(&mpu->dpll[2]);
4497 omap_uart_reset(mpu->uart[0]);
4498 omap_uart_reset(mpu->uart[1]);
4499 omap_uart_reset(mpu->uart[2]);
4500 omap_mmc_reset(mpu->mmc);
4501 omap_mpuio_reset(mpu->mpuio);
4502 omap_gpio_reset(mpu->gpio);
4503 omap_uwire_reset(mpu->microwire);
4504 omap_pwl_reset(mpu);
4505 omap_pwt_reset(mpu);
4506 omap_i2c_reset(mpu->i2c[0]);
4507 omap_rtc_reset(mpu->rtc);
4508 omap_mcbsp_reset(mpu->mcbsp1);
4509 omap_mcbsp_reset(mpu->mcbsp2);
4510 omap_mcbsp_reset(mpu->mcbsp3);
4511 omap_lpg_reset(mpu->led[0]);
4512 omap_lpg_reset(mpu->led[1]);
4513 omap_clkm_reset(mpu);
4514 cpu_reset(mpu->env);
4515 }
4516
4517 static const struct omap_map_s {
4518 target_phys_addr_t phys_dsp;
4519 target_phys_addr_t phys_mpu;
4520 uint32_t size;
4521 const char *name;
4522 } omap15xx_dsp_mm[] = {
4523 /* Strobe 0 */
4524 { 0xe1010000, 0xfffb0000, 0x800, "UART1 BT" }, /* CS0 */
4525 { 0xe1010800, 0xfffb0800, 0x800, "UART2 COM" }, /* CS1 */
4526 { 0xe1011800, 0xfffb1800, 0x800, "McBSP1 audio" }, /* CS3 */
4527 { 0xe1012000, 0xfffb2000, 0x800, "MCSI2 communication" }, /* CS4 */
4528 { 0xe1012800, 0xfffb2800, 0x800, "MCSI1 BT u-Law" }, /* CS5 */
4529 { 0xe1013000, 0xfffb3000, 0x800, "uWire" }, /* CS6 */
4530 { 0xe1013800, 0xfffb3800, 0x800, "I^2C" }, /* CS7 */
4531 { 0xe1014000, 0xfffb4000, 0x800, "USB W2FC" }, /* CS8 */
4532 { 0xe1014800, 0xfffb4800, 0x800, "RTC" }, /* CS9 */
4533 { 0xe1015000, 0xfffb5000, 0x800, "MPUIO" }, /* CS10 */
4534 { 0xe1015800, 0xfffb5800, 0x800, "PWL" }, /* CS11 */
4535 { 0xe1016000, 0xfffb6000, 0x800, "PWT" }, /* CS12 */
4536 { 0xe1017000, 0xfffb7000, 0x800, "McBSP3" }, /* CS14 */
4537 { 0xe1017800, 0xfffb7800, 0x800, "MMC" }, /* CS15 */
4538 { 0xe1019000, 0xfffb9000, 0x800, "32-kHz timer" }, /* CS18 */
4539 { 0xe1019800, 0xfffb9800, 0x800, "UART3" }, /* CS19 */
4540 { 0xe101c800, 0xfffbc800, 0x800, "TIPB switches" }, /* CS25 */
4541 /* Strobe 1 */
4542 { 0xe101e000, 0xfffce000, 0x800, "GPIOs" }, /* CS28 */
4543
4544 { 0 }
4545 };
4546
4547 static void omap_setup_dsp_mapping(const struct omap_map_s *map)
4548 {
4549 int io;
4550
4551 for (; map->phys_dsp; map ++) {
4552 io = cpu_get_physical_page_desc(map->phys_mpu);
4553
4554 cpu_register_physical_memory(map->phys_dsp, map->size, io);
4555 }
4556 }
4557
4558 void omap_mpu_wakeup(void *opaque, int irq, int req)
4559 {
4560 struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque;
4561
4562 if (mpu->env->halted)
4563 cpu_interrupt(mpu->env, CPU_INTERRUPT_EXITTB);
4564 }
4565
4566 static const struct dma_irq_map omap1_dma_irq_map[] = {
4567 { 0, OMAP_INT_DMA_CH0_6 },
4568 { 0, OMAP_INT_DMA_CH1_7 },
4569 { 0, OMAP_INT_DMA_CH2_8 },
4570 { 0, OMAP_INT_DMA_CH3 },
4571 { 0, OMAP_INT_DMA_CH4 },
4572 { 0, OMAP_INT_DMA_CH5 },
4573 { 1, OMAP_INT_1610_DMA_CH6 },
4574 { 1, OMAP_INT_1610_DMA_CH7 },
4575 { 1, OMAP_INT_1610_DMA_CH8 },
4576 { 1, OMAP_INT_1610_DMA_CH9 },
4577 { 1, OMAP_INT_1610_DMA_CH10 },
4578 { 1, OMAP_INT_1610_DMA_CH11 },
4579 { 1, OMAP_INT_1610_DMA_CH12 },
4580 { 1, OMAP_INT_1610_DMA_CH13 },
4581 { 1, OMAP_INT_1610_DMA_CH14 },
4582 { 1, OMAP_INT_1610_DMA_CH15 }
4583 };
4584
4585 /* DMA ports for OMAP1 */
4586 static int omap_validate_emiff_addr(struct omap_mpu_state_s *s,
4587 target_phys_addr_t addr)
4588 {
4589 return addr >= OMAP_EMIFF_BASE && addr < OMAP_EMIFF_BASE + s->sdram_size;
4590 }
4591
4592 static int omap_validate_emifs_addr(struct omap_mpu_state_s *s,
4593 target_phys_addr_t addr)
4594 {
4595 return addr >= OMAP_EMIFS_BASE && addr < OMAP_EMIFF_BASE;
4596 }
4597
4598 static int omap_validate_imif_addr(struct omap_mpu_state_s *s,
4599 target_phys_addr_t addr)
4600 {
4601 return addr >= OMAP_IMIF_BASE && addr < OMAP_IMIF_BASE + s->sram_size;
4602 }
4603
4604 static int omap_validate_tipb_addr(struct omap_mpu_state_s *s,
4605 target_phys_addr_t addr)
4606 {
4607 return addr >= 0xfffb0000 && addr < 0xffff0000;
4608 }
4609
4610 static int omap_validate_local_addr(struct omap_mpu_state_s *s,
4611 target_phys_addr_t addr)
4612 {
4613 return addr >= OMAP_LOCALBUS_BASE && addr < OMAP_LOCALBUS_BASE + 0x1000000;
4614 }
4615
4616 static int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s,
4617 target_phys_addr_t addr)
4618 {
4619 return addr >= 0xe1010000 && addr < 0xe1020004;
4620 }
4621
4622 struct omap_mpu_state_s *omap310_mpu_init(unsigned long sdram_size,
4623 const char *core)
4624 {
4625 int i;
4626 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *)
4627 qemu_mallocz(sizeof(struct omap_mpu_state_s));
4628 ram_addr_t imif_base, emiff_base;
4629 qemu_irq *cpu_irq;
4630 qemu_irq dma_irqs[6];
4631 DriveInfo *dinfo;
4632
4633 if (!core)
4634 core = "ti925t";
4635
4636 /* Core */
4637 s->mpu_model = omap310;
4638 s->env = cpu_init(core);
4639 if (!s->env) {
4640 fprintf(stderr, "Unable to find CPU definition\n");
4641 exit(1);
4642 }
4643 s->sdram_size = sdram_size;
4644 s->sram_size = OMAP15XX_SRAM_SIZE;
4645
4646 s->wakeup = qemu_allocate_irqs(omap_mpu_wakeup, s, 1)[0];
4647
4648 /* Clocks */
4649 omap_clk_init(s);
4650
4651 /* Memory-mapped stuff */
4652 cpu_register_physical_memory(OMAP_EMIFF_BASE, s->sdram_size,
4653 (emiff_base = qemu_ram_alloc(s->sdram_size)) | IO_MEM_RAM);
4654 cpu_register_physical_memory(OMAP_IMIF_BASE, s->sram_size,
4655 (imif_base = qemu_ram_alloc(s->sram_size)) | IO_MEM_RAM);
4656
4657 omap_clkm_init(0xfffece00, 0xe1008000, s);
4658
4659 cpu_irq = arm_pic_init_cpu(s->env);
4660 s->ih[0] = omap_inth_init(0xfffecb00, 0x100, 1, &s->irq[0],
4661 cpu_irq[ARM_PIC_CPU_IRQ], cpu_irq[ARM_PIC_CPU_FIQ],
4662 omap_findclk(s, "arminth_ck"));
4663 s->ih[1] = omap_inth_init(0xfffe0000, 0x800, 1, &s->irq[1],
4664 s->ih[0]->pins[OMAP_INT_15XX_IH2_IRQ], NULL,
4665 omap_findclk(s, "arminth_ck"));
4666
4667 for (i = 0; i < 6; i ++)
4668 dma_irqs[i] =
4669 s->irq[omap1_dma_irq_map[i].ih][omap1_dma_irq_map[i].intr];
4670 s->dma = omap_dma_init(0xfffed800, dma_irqs, s->irq[0][OMAP_INT_DMA_LCD],
4671 s, omap_findclk(s, "dma_ck"), omap_dma_3_1);
4672
4673 s->port[emiff ].addr_valid = omap_validate_emiff_addr;
4674 s->port[emifs ].addr_valid = omap_validate_emifs_addr;
4675 s->port[imif ].addr_valid = omap_validate_imif_addr;
4676 s->port[tipb ].addr_valid = omap_validate_tipb_addr;
4677 s->port[local ].addr_valid = omap_validate_local_addr;
4678 s->port[tipb_mpui].addr_valid = omap_validate_tipb_mpui_addr;
4679
4680 /* Register SDRAM and SRAM DMA ports for fast transfers. */
4681 soc_dma_port_add_mem_ram(s->dma,
4682 emiff_base, OMAP_EMIFF_BASE, s->sdram_size);
4683 soc_dma_port_add_mem_ram(s->dma,
4684 imif_base, OMAP_IMIF_BASE, s->sram_size);
4685
4686 s->timer[0] = omap_mpu_timer_init(0xfffec500,
4687 s->irq[0][OMAP_INT_TIMER1],
4688 omap_findclk(s, "mputim_ck"));
4689 s->timer[1] = omap_mpu_timer_init(0xfffec600,
4690 s->irq[0][OMAP_INT_TIMER2],
4691 omap_findclk(s, "mputim_ck"));
4692 s->timer[2] = omap_mpu_timer_init(0xfffec700,
4693 s->irq[0][OMAP_INT_TIMER3],
4694 omap_findclk(s, "mputim_ck"));
4695
4696 s->wdt = omap_wd_timer_init(0xfffec800,
4697 s->irq[0][OMAP_INT_WD_TIMER],
4698 omap_findclk(s, "armwdt_ck"));
4699
4700 s->os_timer = omap_os_timer_init(0xfffb9000,
4701 s->irq[1][OMAP_INT_OS_TIMER],
4702 omap_findclk(s, "clk32-kHz"));
4703
4704 s->lcd = omap_lcdc_init(0xfffec000, s->irq[0][OMAP_INT_LCD_CTRL],
4705 omap_dma_get_lcdch(s->dma), imif_base, emiff_base,
4706 omap_findclk(s, "lcd_ck"));
4707
4708 omap_ulpd_pm_init(0xfffe0800, s);
4709 omap_pin_cfg_init(0xfffe1000, s);
4710 omap_id_init(s);
4711
4712 omap_mpui_init(0xfffec900, s);
4713
4714 s->private_tipb = omap_tipb_bridge_init(0xfffeca00,
4715 s->irq[0][OMAP_INT_BRIDGE_PRIV],
4716 omap_findclk(s, "tipb_ck"));
4717 s->public_tipb = omap_tipb_bridge_init(0xfffed300,
4718 s->irq[0][OMAP_INT_BRIDGE_PUB],
4719 omap_findclk(s, "tipb_ck"));
4720
4721 omap_tcmi_init(0xfffecc00, s);
4722
4723 s->uart[0] = omap_uart_init(0xfffb0000, s->irq[1][OMAP_INT_UART1],
4724 omap_findclk(s, "uart1_ck"),
4725 omap_findclk(s, "uart1_ck"),
4726 s->drq[OMAP_DMA_UART1_TX], s->drq[OMAP_DMA_UART1_RX],
4727 serial_hds[0]);
4728 s->uart[1] = omap_uart_init(0xfffb0800, s->irq[1][OMAP_INT_UART2],
4729 omap_findclk(s, "uart2_ck"),
4730 omap_findclk(s, "uart2_ck"),
4731 s->drq[OMAP_DMA_UART2_TX], s->drq[OMAP_DMA_UART2_RX],
4732 serial_hds[0] ? serial_hds[1] : 0);
4733 s->uart[2] = omap_uart_init(0xfffb9800, s->irq[0][OMAP_INT_UART3],
4734 omap_findclk(s, "uart3_ck"),
4735 omap_findclk(s, "uart3_ck"),
4736 s->drq[OMAP_DMA_UART3_TX], s->drq[OMAP_DMA_UART3_RX],
4737 serial_hds[0] && serial_hds[1] ? serial_hds[2] : 0);
4738
4739 omap_dpll_init(&s->dpll[0], 0xfffecf00, omap_findclk(s, "dpll1"));
4740 omap_dpll_init(&s->dpll[1], 0xfffed000, omap_findclk(s, "dpll2"));
4741 omap_dpll_init(&s->dpll[2], 0xfffed100, omap_findclk(s, "dpll3"));
4742
4743 dinfo = drive_get(IF_SD, 0, 0);
4744 if (!dinfo) {
4745 fprintf(stderr, "qemu: missing SecureDigital device\n");
4746 exit(1);
4747 }
4748 s->mmc = omap_mmc_init(0xfffb7800, dinfo->bdrv,
4749 s->irq[1][OMAP_INT_OQN], &s->drq[OMAP_DMA_MMC_TX],
4750 omap_findclk(s, "mmc_ck"));
4751
4752 s->mpuio = omap_mpuio_init(0xfffb5000,
4753 s->irq[1][OMAP_INT_KEYBOARD], s->irq[1][OMAP_INT_MPUIO],
4754 s->wakeup, omap_findclk(s, "clk32-kHz"));
4755
4756 s->gpio = omap_gpio_init(0xfffce000, s->irq[0][OMAP_INT_GPIO_BANK1],
4757 omap_findclk(s, "arm_gpio_ck"));
4758
4759 s->microwire = omap_uwire_init(0xfffb3000, &s->irq[1][OMAP_INT_uWireTX],
4760 s->drq[OMAP_DMA_UWIRE_TX], omap_findclk(s, "mpuper_ck"));
4761
4762 omap_pwl_init(0xfffb5800, s, omap_findclk(s, "armxor_ck"));
4763 omap_pwt_init(0xfffb6000, s, omap_findclk(s, "armxor_ck"));
4764
4765 s->i2c[0] = omap_i2c_init(0xfffb3800, s->irq[1][OMAP_INT_I2C],
4766 &s->drq[OMAP_DMA_I2C_RX], omap_findclk(s, "mpuper_ck"));
4767
4768 s->rtc = omap_rtc_init(0xfffb4800, &s->irq[1][OMAP_INT_RTC_TIMER],
4769 omap_findclk(s, "clk32-kHz"));
4770
4771 s->mcbsp1 = omap_mcbsp_init(0xfffb1800, &s->irq[1][OMAP_INT_McBSP1TX],
4772 &s->drq[OMAP_DMA_MCBSP1_TX], omap_findclk(s, "dspxor_ck"));
4773 s->mcbsp2 = omap_mcbsp_init(0xfffb1000, &s->irq[0][OMAP_INT_310_McBSP2_TX],
4774 &s->drq[OMAP_DMA_MCBSP2_TX], omap_findclk(s, "mpuper_ck"));
4775 s->mcbsp3 = omap_mcbsp_init(0xfffb7000, &s->irq[1][OMAP_INT_McBSP3TX],
4776 &s->drq[OMAP_DMA_MCBSP3_TX], omap_findclk(s, "dspxor_ck"));
4777
4778 s->led[0] = omap_lpg_init(0xfffbd000, omap_findclk(s, "clk32-kHz"));
4779 s->led[1] = omap_lpg_init(0xfffbd800, omap_findclk(s, "clk32-kHz"));
4780
4781 /* Register mappings not currenlty implemented:
4782 * MCSI2 Comm fffb2000 - fffb27ff (not mapped on OMAP310)
4783 * MCSI1 Bluetooth fffb2800 - fffb2fff (not mapped on OMAP310)
4784 * USB W2FC fffb4000 - fffb47ff
4785 * Camera Interface fffb6800 - fffb6fff
4786 * USB Host fffba000 - fffba7ff
4787 * FAC fffba800 - fffbafff
4788 * HDQ/1-Wire fffbc000 - fffbc7ff
4789 * TIPB switches fffbc800 - fffbcfff
4790 * Mailbox fffcf000 - fffcf7ff
4791 * Local bus IF fffec100 - fffec1ff
4792 * Local bus MMU fffec200 - fffec2ff
4793 * DSP MMU fffed200 - fffed2ff
4794 */
4795
4796 omap_setup_dsp_mapping(omap15xx_dsp_mm);
4797 omap_setup_mpui_io(s);
4798
4799 qemu_register_reset(omap1_mpu_reset, s);
4800
4801 return s;
4802 }
AR7 emulation for QEMU