?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Fix setting counter limit to 0 (Robert Reif)
[qemu/qemu_0_9_1_stable.git] / hw / ppc405_uc.c
blob329330a61ccb7ac432d64f8689dfcd020d05372f
1 /*
2 * QEMU PowerPC 405 embedded processors emulation
3 *
4 * Copyright (c) 2007 Jocelyn Mayer
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "hw.h"
25 #include "ppc.h"
26 #include "ppc405.h"
27 #include "pc.h"
28 #include "qemu-timer.h"
29 #include "sysemu.h"
30
31 extern int loglevel;
32 extern FILE *logfile;
33
34 #define DEBUG_OPBA
35 #define DEBUG_SDRAM
36 #define DEBUG_GPIO
37 #define DEBUG_SERIAL
38 #define DEBUG_OCM
39 //#define DEBUG_I2C
40 #define DEBUG_GPT
41 #define DEBUG_MAL
42 #define DEBUG_CLOCKS
43 //#define DEBUG_CLOCKS_LL
44
45 ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
46 uint32_t flags)
47 {
48 ram_addr_t bdloc;
49 int i, n;
50
51 /* We put the bd structure at the top of memory */
52 if (bd->bi_memsize >= 0x01000000UL)
53 bdloc = 0x01000000UL - sizeof(struct ppc4xx_bd_info_t);
54 else
55 bdloc = bd->bi_memsize - sizeof(struct ppc4xx_bd_info_t);
56 stl_raw(phys_ram_base + bdloc + 0x00, bd->bi_memstart);
57 stl_raw(phys_ram_base + bdloc + 0x04, bd->bi_memsize);
58 stl_raw(phys_ram_base + bdloc + 0x08, bd->bi_flashstart);
59 stl_raw(phys_ram_base + bdloc + 0x0C, bd->bi_flashsize);
60 stl_raw(phys_ram_base + bdloc + 0x10, bd->bi_flashoffset);
61 stl_raw(phys_ram_base + bdloc + 0x14, bd->bi_sramstart);
62 stl_raw(phys_ram_base + bdloc + 0x18, bd->bi_sramsize);
63 stl_raw(phys_ram_base + bdloc + 0x1C, bd->bi_bootflags);
64 stl_raw(phys_ram_base + bdloc + 0x20, bd->bi_ipaddr);
65 for (i = 0; i < 6; i++)
66 stb_raw(phys_ram_base + bdloc + 0x24 + i, bd->bi_enetaddr[i]);
67 stw_raw(phys_ram_base + bdloc + 0x2A, bd->bi_ethspeed);
68 stl_raw(phys_ram_base + bdloc + 0x2C, bd->bi_intfreq);
69 stl_raw(phys_ram_base + bdloc + 0x30, bd->bi_busfreq);
70 stl_raw(phys_ram_base + bdloc + 0x34, bd->bi_baudrate);
71 for (i = 0; i < 4; i++)
72 stb_raw(phys_ram_base + bdloc + 0x38 + i, bd->bi_s_version[i]);
73 for (i = 0; i < 32; i++)
74 stb_raw(phys_ram_base + bdloc + 0x3C + i, bd->bi_s_version[i]);
75 stl_raw(phys_ram_base + bdloc + 0x5C, bd->bi_plb_busfreq);
76 stl_raw(phys_ram_base + bdloc + 0x60, bd->bi_pci_busfreq);
77 for (i = 0; i < 6; i++)
78 stb_raw(phys_ram_base + bdloc + 0x64 + i, bd->bi_pci_enetaddr[i]);
79 n = 0x6A;
80 if (flags & 0x00000001) {
81 for (i = 0; i < 6; i++)
82 stb_raw(phys_ram_base + bdloc + n++, bd->bi_pci_enetaddr2[i]);
83 }
84 stl_raw(phys_ram_base + bdloc + n, bd->bi_opbfreq);
85 n += 4;
86 for (i = 0; i < 2; i++) {
87 stl_raw(phys_ram_base + bdloc + n, bd->bi_iic_fast[i]);
88 n += 4;
89 }
90
91 return bdloc;
92 }
93
94 /*****************************************************************************/
95 /* Shared peripherals */
96
97 /*****************************************************************************/
98 /* Peripheral local bus arbitrer */
99 enum {
100 PLB0_BESR = 0x084,
101 PLB0_BEAR = 0x086,
102 PLB0_ACR = 0x087,
103 };
104
105 typedef struct ppc4xx_plb_t ppc4xx_plb_t;
106 struct ppc4xx_plb_t {
107 uint32_t acr;
108 uint32_t bear;
109 uint32_t besr;
110 };
111
112 static target_ulong dcr_read_plb (void *opaque, int dcrn)
113 {
114 ppc4xx_plb_t *plb;
115 target_ulong ret;
116
117 plb = opaque;
118 switch (dcrn) {
119 case PLB0_ACR:
120 ret = plb->acr;
121 break;
122 case PLB0_BEAR:
123 ret = plb->bear;
124 break;
125 case PLB0_BESR:
126 ret = plb->besr;
127 break;
128 default:
129 /* Avoid gcc warning */
130 ret = 0;
131 break;
132 }
133
134 return ret;
135 }
136
137 static void dcr_write_plb (void *opaque, int dcrn, target_ulong val)
138 {
139 ppc4xx_plb_t *plb;
140
141 plb = opaque;
142 switch (dcrn) {
143 case PLB0_ACR:
144 /* We don't care about the actual parameters written as
145 * we don't manage any priorities on the bus
146 */
147 plb->acr = val & 0xF8000000;
148 break;
149 case PLB0_BEAR:
150 /* Read only */
151 break;
152 case PLB0_BESR:
153 /* Write-clear */
154 plb->besr &= ~val;
155 break;
156 }
157 }
158
159 static void ppc4xx_plb_reset (void *opaque)
160 {
161 ppc4xx_plb_t *plb;
162
163 plb = opaque;
164 plb->acr = 0x00000000;
165 plb->bear = 0x00000000;
166 plb->besr = 0x00000000;
167 }
168
169 void ppc4xx_plb_init (CPUState *env)
170 {
171 ppc4xx_plb_t *plb;
172
173 plb = qemu_mallocz(sizeof(ppc4xx_plb_t));
174 if (plb != NULL) {
175 ppc_dcr_register(env, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
176 ppc_dcr_register(env, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb);
177 ppc_dcr_register(env, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb);
178 ppc4xx_plb_reset(plb);
179 qemu_register_reset(ppc4xx_plb_reset, plb);
180 }
181 }
182
183 /*****************************************************************************/
184 /* PLB to OPB bridge */
185 enum {
186 POB0_BESR0 = 0x0A0,
187 POB0_BESR1 = 0x0A2,
188 POB0_BEAR = 0x0A4,
189 };
190
191 typedef struct ppc4xx_pob_t ppc4xx_pob_t;
192 struct ppc4xx_pob_t {
193 uint32_t bear;
194 uint32_t besr[2];
195 };
196
197 static target_ulong dcr_read_pob (void *opaque, int dcrn)
198 {
199 ppc4xx_pob_t *pob;
200 target_ulong ret;
201
202 pob = opaque;
203 switch (dcrn) {
204 case POB0_BEAR:
205 ret = pob->bear;
206 break;
207 case POB0_BESR0:
208 case POB0_BESR1:
209 ret = pob->besr[dcrn - POB0_BESR0];
210 break;
211 default:
212 /* Avoid gcc warning */
213 ret = 0;
214 break;
215 }
216
217 return ret;
218 }
219
220 static void dcr_write_pob (void *opaque, int dcrn, target_ulong val)
221 {
222 ppc4xx_pob_t *pob;
223
224 pob = opaque;
225 switch (dcrn) {
226 case POB0_BEAR:
227 /* Read only */
228 break;
229 case POB0_BESR0:
230 case POB0_BESR1:
231 /* Write-clear */
232 pob->besr[dcrn - POB0_BESR0] &= ~val;
233 break;
234 }
235 }
236
237 static void ppc4xx_pob_reset (void *opaque)
238 {
239 ppc4xx_pob_t *pob;
240
241 pob = opaque;
242 /* No error */
243 pob->bear = 0x00000000;
244 pob->besr[0] = 0x0000000;
245 pob->besr[1] = 0x0000000;
246 }
247
248 void ppc4xx_pob_init (CPUState *env)
249 {
250 ppc4xx_pob_t *pob;
251
252 pob = qemu_mallocz(sizeof(ppc4xx_pob_t));
253 if (pob != NULL) {
254 ppc_dcr_register(env, POB0_BEAR, pob, &dcr_read_pob, &dcr_write_pob);
255 ppc_dcr_register(env, POB0_BESR0, pob, &dcr_read_pob, &dcr_write_pob);
256 ppc_dcr_register(env, POB0_BESR1, pob, &dcr_read_pob, &dcr_write_pob);
257 qemu_register_reset(ppc4xx_pob_reset, pob);
258 ppc4xx_pob_reset(env);
259 }
260 }
261
262 /*****************************************************************************/
263 /* OPB arbitrer */
264 typedef struct ppc4xx_opba_t ppc4xx_opba_t;
265 struct ppc4xx_opba_t {
266 target_phys_addr_t base;
267 uint8_t cr;
268 uint8_t pr;
269 };
270
271 static uint32_t opba_readb (void *opaque, target_phys_addr_t addr)
272 {
273 ppc4xx_opba_t *opba;
274 uint32_t ret;
275
276 #ifdef DEBUG_OPBA
277 printf("%s: addr " PADDRX "\n", __func__, addr);
278 #endif
279 opba = opaque;
280 switch (addr - opba->base) {
281 case 0x00:
282 ret = opba->cr;
283 break;
284 case 0x01:
285 ret = opba->pr;
286 break;
287 default:
288 ret = 0x00;
289 break;
290 }
291
292 return ret;
293 }
294
295 static void opba_writeb (void *opaque,
296 target_phys_addr_t addr, uint32_t value)
297 {
298 ppc4xx_opba_t *opba;
299
300 #ifdef DEBUG_OPBA
301 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
302 #endif
303 opba = opaque;
304 switch (addr - opba->base) {
305 case 0x00:
306 opba->cr = value & 0xF8;
307 break;
308 case 0x01:
309 opba->pr = value & 0xFF;
310 break;
311 default:
312 break;
313 }
314 }
315
316 static uint32_t opba_readw (void *opaque, target_phys_addr_t addr)
317 {
318 uint32_t ret;
319
320 #ifdef DEBUG_OPBA
321 printf("%s: addr " PADDRX "\n", __func__, addr);
322 #endif
323 ret = opba_readb(opaque, addr) << 8;
324 ret |= opba_readb(opaque, addr + 1);
325
326 return ret;
327 }
328
329 static void opba_writew (void *opaque,
330 target_phys_addr_t addr, uint32_t value)
331 {
332 #ifdef DEBUG_OPBA
333 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
334 #endif
335 opba_writeb(opaque, addr, value >> 8);
336 opba_writeb(opaque, addr + 1, value);
337 }
338
339 static uint32_t opba_readl (void *opaque, target_phys_addr_t addr)
340 {
341 uint32_t ret;
342
343 #ifdef DEBUG_OPBA
344 printf("%s: addr " PADDRX "\n", __func__, addr);
345 #endif
346 ret = opba_readb(opaque, addr) << 24;
347 ret |= opba_readb(opaque, addr + 1) << 16;
348
349 return ret;
350 }
351
352 static void opba_writel (void *opaque,
353 target_phys_addr_t addr, uint32_t value)
354 {
355 #ifdef DEBUG_OPBA
356 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
357 #endif
358 opba_writeb(opaque, addr, value >> 24);
359 opba_writeb(opaque, addr + 1, value >> 16);
360 }
361
362 static CPUReadMemoryFunc *opba_read[] = {
363 &opba_readb,
364 &opba_readw,
365 &opba_readl,
366 };
367
368 static CPUWriteMemoryFunc *opba_write[] = {
369 &opba_writeb,
370 &opba_writew,
371 &opba_writel,
372 };
373
374 static void ppc4xx_opba_reset (void *opaque)
375 {
376 ppc4xx_opba_t *opba;
377
378 opba = opaque;
379 opba->cr = 0x00; /* No dynamic priorities - park disabled */
380 opba->pr = 0x11;
381 }
382
383 void ppc4xx_opba_init (CPUState *env, ppc4xx_mmio_t *mmio,
384 target_phys_addr_t offset)
385 {
386 ppc4xx_opba_t *opba;
387
388 opba = qemu_mallocz(sizeof(ppc4xx_opba_t));
389 if (opba != NULL) {
390 opba->base = offset;
391 #ifdef DEBUG_OPBA
392 printf("%s: offset " PADDRX "\n", __func__, offset);
393 #endif
394 ppc4xx_mmio_register(env, mmio, offset, 0x002,
395 opba_read, opba_write, opba);
396 qemu_register_reset(ppc4xx_opba_reset, opba);
397 ppc4xx_opba_reset(opba);
398 }
399 }
400
401 /*****************************************************************************/
402 /* Code decompression controller */
403 /* XXX: TODO */
404
405 /*****************************************************************************/
406 /* SDRAM controller */
407 typedef struct ppc4xx_sdram_t ppc4xx_sdram_t;
408 struct ppc4xx_sdram_t {
409 uint32_t addr;
410 int nbanks;
411 target_phys_addr_t ram_bases[4];
412 target_phys_addr_t ram_sizes[4];
413 uint32_t besr0;
414 uint32_t besr1;
415 uint32_t bear;
416 uint32_t cfg;
417 uint32_t status;
418 uint32_t rtr;
419 uint32_t pmit;
420 uint32_t bcr[4];
421 uint32_t tr;
422 uint32_t ecccfg;
423 uint32_t eccesr;
424 qemu_irq irq;
425 };
426
427 enum {
428 SDRAM0_CFGADDR = 0x010,
429 SDRAM0_CFGDATA = 0x011,
430 };
431
432 /* XXX: TOFIX: some patches have made this code become inconsistent:
433 * there are type inconsistencies, mixing target_phys_addr_t, target_ulong
434 * and uint32_t
435 */
436 static uint32_t sdram_bcr (target_phys_addr_t ram_base,
437 target_phys_addr_t ram_size)
438 {
439 uint32_t bcr;
440
441 switch (ram_size) {
442 case (4 * 1024 * 1024):
443 bcr = 0x00000000;
444 break;
445 case (8 * 1024 * 1024):
446 bcr = 0x00020000;
447 break;
448 case (16 * 1024 * 1024):
449 bcr = 0x00040000;
450 break;
451 case (32 * 1024 * 1024):
452 bcr = 0x00060000;
453 break;
454 case (64 * 1024 * 1024):
455 bcr = 0x00080000;
456 break;
457 case (128 * 1024 * 1024):
458 bcr = 0x000A0000;
459 break;
460 case (256 * 1024 * 1024):
461 bcr = 0x000C0000;
462 break;
463 default:
464 printf("%s: invalid RAM size " PADDRX "\n", __func__, ram_size);
465 return 0x00000000;
466 }
467 bcr |= ram_base & 0xFF800000;
468 bcr |= 1;
469
470 return bcr;
471 }
472
473 static always_inline target_phys_addr_t sdram_base (uint32_t bcr)
474 {
475 return bcr & 0xFF800000;
476 }
477
478 static target_ulong sdram_size (uint32_t bcr)
479 {
480 target_ulong size;
481 int sh;
482
483 sh = (bcr >> 17) & 0x7;
484 if (sh == 7)
485 size = -1;
486 else
487 size = (4 * 1024 * 1024) << sh;
488
489 return size;
490 }
491
492 static void sdram_set_bcr (uint32_t *bcrp, uint32_t bcr, int enabled)
493 {
494 if (*bcrp & 0x00000001) {
495 /* Unmap RAM */
496 #ifdef DEBUG_SDRAM
497 printf("%s: unmap RAM area " PADDRX " " ADDRX "\n",
498 __func__, sdram_base(*bcrp), sdram_size(*bcrp));
499 #endif
500 cpu_register_physical_memory(sdram_base(*bcrp), sdram_size(*bcrp),
501 IO_MEM_UNASSIGNED);
502 }
503 *bcrp = bcr & 0xFFDEE001;
504 if (enabled && (bcr & 0x00000001)) {
505 #ifdef DEBUG_SDRAM
506 printf("%s: Map RAM area " PADDRX " " ADDRX "\n",
507 __func__, sdram_base(bcr), sdram_size(bcr));
508 #endif
509 cpu_register_physical_memory(sdram_base(bcr), sdram_size(bcr),
510 sdram_base(bcr) | IO_MEM_RAM);
511 }
512 }
513
514 static void sdram_map_bcr (ppc4xx_sdram_t *sdram)
515 {
516 int i;
517
518 for (i = 0; i < sdram->nbanks; i++) {
519 if (sdram->ram_sizes[i] != 0) {
520 sdram_set_bcr(&sdram->bcr[i],
521 sdram_bcr(sdram->ram_bases[i], sdram->ram_sizes[i]),
522 1);
523 } else {
524 sdram_set_bcr(&sdram->bcr[i], 0x00000000, 0);
525 }
526 }
527 }
528
529 static void sdram_unmap_bcr (ppc4xx_sdram_t *sdram)
530 {
531 int i;
532
533 for (i = 0; i < sdram->nbanks; i++) {
534 #ifdef DEBUG_SDRAM
535 printf("%s: Unmap RAM area " PADDRX " " ADDRX "\n",
536 __func__, sdram_base(sdram->bcr[i]), sdram_size(sdram->bcr[i]));
537 #endif
538 cpu_register_physical_memory(sdram_base(sdram->bcr[i]),
539 sdram_size(sdram->bcr[i]),
540 IO_MEM_UNASSIGNED);
541 }
542 }
543
544 static target_ulong dcr_read_sdram (void *opaque, int dcrn)
545 {
546 ppc4xx_sdram_t *sdram;
547 target_ulong ret;
548
549 sdram = opaque;
550 switch (dcrn) {
551 case SDRAM0_CFGADDR:
552 ret = sdram->addr;
553 break;
554 case SDRAM0_CFGDATA:
555 switch (sdram->addr) {
556 case 0x00: /* SDRAM_BESR0 */
557 ret = sdram->besr0;
558 break;
559 case 0x08: /* SDRAM_BESR1 */
560 ret = sdram->besr1;
561 break;
562 case 0x10: /* SDRAM_BEAR */
563 ret = sdram->bear;
564 break;
565 case 0x20: /* SDRAM_CFG */
566 ret = sdram->cfg;
567 break;
568 case 0x24: /* SDRAM_STATUS */
569 ret = sdram->status;
570 break;
571 case 0x30: /* SDRAM_RTR */
572 ret = sdram->rtr;
573 break;
574 case 0x34: /* SDRAM_PMIT */
575 ret = sdram->pmit;
576 break;
577 case 0x40: /* SDRAM_B0CR */
578 ret = sdram->bcr[0];
579 break;
580 case 0x44: /* SDRAM_B1CR */
581 ret = sdram->bcr[1];
582 break;
583 case 0x48: /* SDRAM_B2CR */
584 ret = sdram->bcr[2];
585 break;
586 case 0x4C: /* SDRAM_B3CR */
587 ret = sdram->bcr[3];
588 break;
589 case 0x80: /* SDRAM_TR */
590 ret = -1; /* ? */
591 break;
592 case 0x94: /* SDRAM_ECCCFG */
593 ret = sdram->ecccfg;
594 break;
595 case 0x98: /* SDRAM_ECCESR */
596 ret = sdram->eccesr;
597 break;
598 default: /* Error */
599 ret = -1;
600 break;
601 }
602 break;
603 default:
604 /* Avoid gcc warning */
605 ret = 0x00000000;
606 break;
607 }
608
609 return ret;
610 }
611
612 static void dcr_write_sdram (void *opaque, int dcrn, target_ulong val)
613 {
614 ppc4xx_sdram_t *sdram;
615
616 sdram = opaque;
617 switch (dcrn) {
618 case SDRAM0_CFGADDR:
619 sdram->addr = val;
620 break;
621 case SDRAM0_CFGDATA:
622 switch (sdram->addr) {
623 case 0x00: /* SDRAM_BESR0 */
624 sdram->besr0 &= ~val;
625 break;
626 case 0x08: /* SDRAM_BESR1 */
627 sdram->besr1 &= ~val;
628 break;
629 case 0x10: /* SDRAM_BEAR */
630 sdram->bear = val;
631 break;
632 case 0x20: /* SDRAM_CFG */
633 val &= 0xFFE00000;
634 if (!(sdram->cfg & 0x80000000) && (val & 0x80000000)) {
635 #ifdef DEBUG_SDRAM
636 printf("%s: enable SDRAM controller\n", __func__);
637 #endif
638 /* validate all RAM mappings */
639 sdram_map_bcr(sdram);
640 sdram->status &= ~0x80000000;
641 } else if ((sdram->cfg & 0x80000000) && !(val & 0x80000000)) {
642 #ifdef DEBUG_SDRAM
643 printf("%s: disable SDRAM controller\n", __func__);
644 #endif
645 /* invalidate all RAM mappings */
646 sdram_unmap_bcr(sdram);
647 sdram->status |= 0x80000000;
648 }
649 if (!(sdram->cfg & 0x40000000) && (val & 0x40000000))
650 sdram->status |= 0x40000000;
651 else if ((sdram->cfg & 0x40000000) && !(val & 0x40000000))
652 sdram->status &= ~0x40000000;
653 sdram->cfg = val;
654 break;
655 case 0x24: /* SDRAM_STATUS */
656 /* Read-only register */
657 break;
658 case 0x30: /* SDRAM_RTR */
659 sdram->rtr = val & 0x3FF80000;
660 break;
661 case 0x34: /* SDRAM_PMIT */
662 sdram->pmit = (val & 0xF8000000) | 0x07C00000;
663 break;
664 case 0x40: /* SDRAM_B0CR */
665 sdram_set_bcr(&sdram->bcr[0], val, sdram->cfg & 0x80000000);
666 break;
667 case 0x44: /* SDRAM_B1CR */
668 sdram_set_bcr(&sdram->bcr[1], val, sdram->cfg & 0x80000000);
669 break;
670 case 0x48: /* SDRAM_B2CR */
671 sdram_set_bcr(&sdram->bcr[2], val, sdram->cfg & 0x80000000);
672 break;
673 case 0x4C: /* SDRAM_B3CR */
674 sdram_set_bcr(&sdram->bcr[3], val, sdram->cfg & 0x80000000);
675 break;
676 case 0x80: /* SDRAM_TR */
677 sdram->tr = val & 0x018FC01F;
678 break;
679 case 0x94: /* SDRAM_ECCCFG */
680 sdram->ecccfg = val & 0x00F00000;
681 break;
682 case 0x98: /* SDRAM_ECCESR */
683 val &= 0xFFF0F000;
684 if (sdram->eccesr == 0 && val != 0)
685 qemu_irq_raise(sdram->irq);
686 else if (sdram->eccesr != 0 && val == 0)
687 qemu_irq_lower(sdram->irq);
688 sdram->eccesr = val;
689 break;
690 default: /* Error */
691 break;
692 }
693 break;
694 }
695 }
696
697 static void sdram_reset (void *opaque)
698 {
699 ppc4xx_sdram_t *sdram;
700
701 sdram = opaque;
702 sdram->addr = 0x00000000;
703 sdram->bear = 0x00000000;
704 sdram->besr0 = 0x00000000; /* No error */
705 sdram->besr1 = 0x00000000; /* No error */
706 sdram->cfg = 0x00000000;
707 sdram->ecccfg = 0x00000000; /* No ECC */
708 sdram->eccesr = 0x00000000; /* No error */
709 sdram->pmit = 0x07C00000;
710 sdram->rtr = 0x05F00000;
711 sdram->tr = 0x00854009;
712 /* We pre-initialize RAM banks */
713 sdram->status = 0x00000000;
714 sdram->cfg = 0x00800000;
715 sdram_unmap_bcr(sdram);
716 }
717
718 void ppc405_sdram_init (CPUState *env, qemu_irq irq, int nbanks,
719 target_phys_addr_t *ram_bases,
720 target_phys_addr_t *ram_sizes,
721 int do_init)
722 {
723 ppc4xx_sdram_t *sdram;
724
725 sdram = qemu_mallocz(sizeof(ppc4xx_sdram_t));
726 if (sdram != NULL) {
727 sdram->irq = irq;
728 sdram->nbanks = nbanks;
729 memset(sdram->ram_bases, 0, 4 * sizeof(target_phys_addr_t));
730 memcpy(sdram->ram_bases, ram_bases,
731 nbanks * sizeof(target_phys_addr_t));
732 memset(sdram->ram_sizes, 0, 4 * sizeof(target_phys_addr_t));
733 memcpy(sdram->ram_sizes, ram_sizes,
734 nbanks * sizeof(target_phys_addr_t));
735 sdram_reset(sdram);
736 qemu_register_reset(&sdram_reset, sdram);
737 ppc_dcr_register(env, SDRAM0_CFGADDR,
738 sdram, &dcr_read_sdram, &dcr_write_sdram);
739 ppc_dcr_register(env, SDRAM0_CFGDATA,
740 sdram, &dcr_read_sdram, &dcr_write_sdram);
741 if (do_init)
742 sdram_map_bcr(sdram);
743 }
744 }
745
746 /*****************************************************************************/
747 /* Peripheral controller */
748 typedef struct ppc4xx_ebc_t ppc4xx_ebc_t;
749 struct ppc4xx_ebc_t {
750 uint32_t addr;
751 uint32_t bcr[8];
752 uint32_t bap[8];
753 uint32_t bear;
754 uint32_t besr0;
755 uint32_t besr1;
756 uint32_t cfg;
757 };
758
759 enum {
760 EBC0_CFGADDR = 0x012,
761 EBC0_CFGDATA = 0x013,
762 };
763
764 static target_ulong dcr_read_ebc (void *opaque, int dcrn)
765 {
766 ppc4xx_ebc_t *ebc;
767 target_ulong ret;
768
769 ebc = opaque;
770 switch (dcrn) {
771 case EBC0_CFGADDR:
772 ret = ebc->addr;
773 break;
774 case EBC0_CFGDATA:
775 switch (ebc->addr) {
776 case 0x00: /* B0CR */
777 ret = ebc->bcr[0];
778 break;
779 case 0x01: /* B1CR */
780 ret = ebc->bcr[1];
781 break;
782 case 0x02: /* B2CR */
783 ret = ebc->bcr[2];
784 break;
785 case 0x03: /* B3CR */
786 ret = ebc->bcr[3];
787 break;
788 case 0x04: /* B4CR */
789 ret = ebc->bcr[4];
790 break;
791 case 0x05: /* B5CR */
792 ret = ebc->bcr[5];
793 break;
794 case 0x06: /* B6CR */
795 ret = ebc->bcr[6];
796 break;
797 case 0x07: /* B7CR */
798 ret = ebc->bcr[7];
799 break;
800 case 0x10: /* B0AP */
801 ret = ebc->bap[0];
802 break;
803 case 0x11: /* B1AP */
804 ret = ebc->bap[1];
805 break;
806 case 0x12: /* B2AP */
807 ret = ebc->bap[2];
808 break;
809 case 0x13: /* B3AP */
810 ret = ebc->bap[3];
811 break;
812 case 0x14: /* B4AP */
813 ret = ebc->bap[4];
814 break;
815 case 0x15: /* B5AP */
816 ret = ebc->bap[5];
817 break;
818 case 0x16: /* B6AP */
819 ret = ebc->bap[6];
820 break;
821 case 0x17: /* B7AP */
822 ret = ebc->bap[7];
823 break;
824 case 0x20: /* BEAR */
825 ret = ebc->bear;
826 break;
827 case 0x21: /* BESR0 */
828 ret = ebc->besr0;
829 break;
830 case 0x22: /* BESR1 */
831 ret = ebc->besr1;
832 break;
833 case 0x23: /* CFG */
834 ret = ebc->cfg;
835 break;
836 default:
837 ret = 0x00000000;
838 break;
839 }
840 default:
841 ret = 0x00000000;
842 break;
843 }
844
845 return ret;
846 }
847
848 static void dcr_write_ebc (void *opaque, int dcrn, target_ulong val)
849 {
850 ppc4xx_ebc_t *ebc;
851
852 ebc = opaque;
853 switch (dcrn) {
854 case EBC0_CFGADDR:
855 ebc->addr = val;
856 break;
857 case EBC0_CFGDATA:
858 switch (ebc->addr) {
859 case 0x00: /* B0CR */
860 break;
861 case 0x01: /* B1CR */
862 break;
863 case 0x02: /* B2CR */
864 break;
865 case 0x03: /* B3CR */
866 break;
867 case 0x04: /* B4CR */
868 break;
869 case 0x05: /* B5CR */
870 break;
871 case 0x06: /* B6CR */
872 break;
873 case 0x07: /* B7CR */
874 break;
875 case 0x10: /* B0AP */
876 break;
877 case 0x11: /* B1AP */
878 break;
879 case 0x12: /* B2AP */
880 break;
881 case 0x13: /* B3AP */
882 break;
883 case 0x14: /* B4AP */
884 break;
885 case 0x15: /* B5AP */
886 break;
887 case 0x16: /* B6AP */
888 break;
889 case 0x17: /* B7AP */
890 break;
891 case 0x20: /* BEAR */
892 break;
893 case 0x21: /* BESR0 */
894 break;
895 case 0x22: /* BESR1 */
896 break;
897 case 0x23: /* CFG */
898 break;
899 default:
900 break;
901 }
902 break;
903 default:
904 break;
905 }
906 }
907
908 static void ebc_reset (void *opaque)
909 {
910 ppc4xx_ebc_t *ebc;
911 int i;
912
913 ebc = opaque;
914 ebc->addr = 0x00000000;
915 ebc->bap[0] = 0x7F8FFE80;
916 ebc->bcr[0] = 0xFFE28000;
917 for (i = 0; i < 8; i++) {
918 ebc->bap[i] = 0x00000000;
919 ebc->bcr[i] = 0x00000000;
920 }
921 ebc->besr0 = 0x00000000;
922 ebc->besr1 = 0x00000000;
923 ebc->cfg = 0x80400000;
924 }
925
926 void ppc405_ebc_init (CPUState *env)
927 {
928 ppc4xx_ebc_t *ebc;
929
930 ebc = qemu_mallocz(sizeof(ppc4xx_ebc_t));
931 if (ebc != NULL) {
932 ebc_reset(ebc);
933 qemu_register_reset(&ebc_reset, ebc);
934 ppc_dcr_register(env, EBC0_CFGADDR,
935 ebc, &dcr_read_ebc, &dcr_write_ebc);
936 ppc_dcr_register(env, EBC0_CFGDATA,
937 ebc, &dcr_read_ebc, &dcr_write_ebc);
938 }
939 }
940
941 /*****************************************************************************/
942 /* DMA controller */
943 enum {
944 DMA0_CR0 = 0x100,
945 DMA0_CT0 = 0x101,
946 DMA0_DA0 = 0x102,
947 DMA0_SA0 = 0x103,
948 DMA0_SG0 = 0x104,
949 DMA0_CR1 = 0x108,
950 DMA0_CT1 = 0x109,
951 DMA0_DA1 = 0x10A,
952 DMA0_SA1 = 0x10B,
953 DMA0_SG1 = 0x10C,
954 DMA0_CR2 = 0x110,
955 DMA0_CT2 = 0x111,
956 DMA0_DA2 = 0x112,
957 DMA0_SA2 = 0x113,
958 DMA0_SG2 = 0x114,
959 DMA0_CR3 = 0x118,
960 DMA0_CT3 = 0x119,
961 DMA0_DA3 = 0x11A,
962 DMA0_SA3 = 0x11B,
963 DMA0_SG3 = 0x11C,
964 DMA0_SR = 0x120,
965 DMA0_SGC = 0x123,
966 DMA0_SLP = 0x125,
967 DMA0_POL = 0x126,
968 };
969
970 typedef struct ppc405_dma_t ppc405_dma_t;
971 struct ppc405_dma_t {
972 qemu_irq irqs[4];
973 uint32_t cr[4];
974 uint32_t ct[4];
975 uint32_t da[4];
976 uint32_t sa[4];
977 uint32_t sg[4];
978 uint32_t sr;
979 uint32_t sgc;
980 uint32_t slp;
981 uint32_t pol;
982 };
983
984 static target_ulong dcr_read_dma (void *opaque, int dcrn)
985 {
986 ppc405_dma_t *dma;
987
988 dma = opaque;
989
990 return 0;
991 }
992
993 static void dcr_write_dma (void *opaque, int dcrn, target_ulong val)
994 {
995 ppc405_dma_t *dma;
996
997 dma = opaque;
998 }
999
1000 static void ppc405_dma_reset (void *opaque)
1001 {
1002 ppc405_dma_t *dma;
1003 int i;
1004
1005 dma = opaque;
1006 for (i = 0; i < 4; i++) {
1007 dma->cr[i] = 0x00000000;
1008 dma->ct[i] = 0x00000000;
1009 dma->da[i] = 0x00000000;
1010 dma->sa[i] = 0x00000000;
1011 dma->sg[i] = 0x00000000;
1012 }
1013 dma->sr = 0x00000000;
1014 dma->sgc = 0x00000000;
1015 dma->slp = 0x7C000000;
1016 dma->pol = 0x00000000;
1017 }
1018
1019 void ppc405_dma_init (CPUState *env, qemu_irq irqs[4])
1020 {
1021 ppc405_dma_t *dma;
1022
1023 dma = qemu_mallocz(sizeof(ppc405_dma_t));
1024 if (dma != NULL) {
1025 memcpy(dma->irqs, irqs, 4 * sizeof(qemu_irq));
1026 ppc405_dma_reset(dma);
1027 qemu_register_reset(&ppc405_dma_reset, dma);
1028 ppc_dcr_register(env, DMA0_CR0,
1029 dma, &dcr_read_dma, &dcr_write_dma);
1030 ppc_dcr_register(env, DMA0_CT0,
1031 dma, &dcr_read_dma, &dcr_write_dma);
1032 ppc_dcr_register(env, DMA0_DA0,
1033 dma, &dcr_read_dma, &dcr_write_dma);
1034 ppc_dcr_register(env, DMA0_SA0,
1035 dma, &dcr_read_dma, &dcr_write_dma);
1036 ppc_dcr_register(env, DMA0_SG0,
1037 dma, &dcr_read_dma, &dcr_write_dma);
1038 ppc_dcr_register(env, DMA0_CR1,
1039 dma, &dcr_read_dma, &dcr_write_dma);
1040 ppc_dcr_register(env, DMA0_CT1,
1041 dma, &dcr_read_dma, &dcr_write_dma);
1042 ppc_dcr_register(env, DMA0_DA1,
1043 dma, &dcr_read_dma, &dcr_write_dma);
1044 ppc_dcr_register(env, DMA0_SA1,
1045 dma, &dcr_read_dma, &dcr_write_dma);
1046 ppc_dcr_register(env, DMA0_SG1,
1047 dma, &dcr_read_dma, &dcr_write_dma);
1048 ppc_dcr_register(env, DMA0_CR2,
1049 dma, &dcr_read_dma, &dcr_write_dma);
1050 ppc_dcr_register(env, DMA0_CT2,
1051 dma, &dcr_read_dma, &dcr_write_dma);
1052 ppc_dcr_register(env, DMA0_DA2,
1053 dma, &dcr_read_dma, &dcr_write_dma);
1054 ppc_dcr_register(env, DMA0_SA2,
1055 dma, &dcr_read_dma, &dcr_write_dma);
1056 ppc_dcr_register(env, DMA0_SG2,
1057 dma, &dcr_read_dma, &dcr_write_dma);
1058 ppc_dcr_register(env, DMA0_CR3,
1059 dma, &dcr_read_dma, &dcr_write_dma);
1060 ppc_dcr_register(env, DMA0_CT3,
1061 dma, &dcr_read_dma, &dcr_write_dma);
1062 ppc_dcr_register(env, DMA0_DA3,
1063 dma, &dcr_read_dma, &dcr_write_dma);
1064 ppc_dcr_register(env, DMA0_SA3,
1065 dma, &dcr_read_dma, &dcr_write_dma);
1066 ppc_dcr_register(env, DMA0_SG3,
1067 dma, &dcr_read_dma, &dcr_write_dma);
1068 ppc_dcr_register(env, DMA0_SR,
1069 dma, &dcr_read_dma, &dcr_write_dma);
1070 ppc_dcr_register(env, DMA0_SGC,
1071 dma, &dcr_read_dma, &dcr_write_dma);
1072 ppc_dcr_register(env, DMA0_SLP,
1073 dma, &dcr_read_dma, &dcr_write_dma);
1074 ppc_dcr_register(env, DMA0_POL,
1075 dma, &dcr_read_dma, &dcr_write_dma);
1076 }
1077 }
1078
1079 /*****************************************************************************/
1080 /* GPIO */
1081 typedef struct ppc405_gpio_t ppc405_gpio_t;
1082 struct ppc405_gpio_t {
1083 target_phys_addr_t base;
1084 uint32_t or;
1085 uint32_t tcr;
1086 uint32_t osrh;
1087 uint32_t osrl;
1088 uint32_t tsrh;
1089 uint32_t tsrl;
1090 uint32_t odr;
1091 uint32_t ir;
1092 uint32_t rr1;
1093 uint32_t isr1h;
1094 uint32_t isr1l;
1095 };
1096
1097 static uint32_t ppc405_gpio_readb (void *opaque, target_phys_addr_t addr)
1098 {
1099 ppc405_gpio_t *gpio;
1100
1101 gpio = opaque;
1102 #ifdef DEBUG_GPIO
1103 printf("%s: addr " PADDRX "\n", __func__, addr);
1104 #endif
1105
1106 return 0;
1107 }
1108
1109 static void ppc405_gpio_writeb (void *opaque,
1110 target_phys_addr_t addr, uint32_t value)
1111 {
1112 ppc405_gpio_t *gpio;
1113
1114 gpio = opaque;
1115 #ifdef DEBUG_GPIO
1116 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1117 #endif
1118 }
1119
1120 static uint32_t ppc405_gpio_readw (void *opaque, target_phys_addr_t addr)
1121 {
1122 ppc405_gpio_t *gpio;
1123
1124 gpio = opaque;
1125 #ifdef DEBUG_GPIO
1126 printf("%s: addr " PADDRX "\n", __func__, addr);
1127 #endif
1128
1129 return 0;
1130 }
1131
1132 static void ppc405_gpio_writew (void *opaque,
1133 target_phys_addr_t addr, uint32_t value)
1134 {
1135 ppc405_gpio_t *gpio;
1136
1137 gpio = opaque;
1138 #ifdef DEBUG_GPIO
1139 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1140 #endif
1141 }
1142
1143 static uint32_t ppc405_gpio_readl (void *opaque, target_phys_addr_t addr)
1144 {
1145 ppc405_gpio_t *gpio;
1146
1147 gpio = opaque;
1148 #ifdef DEBUG_GPIO
1149 printf("%s: addr " PADDRX "\n", __func__, addr);
1150 #endif
1151
1152 return 0;
1153 }
1154
1155 static void ppc405_gpio_writel (void *opaque,
1156 target_phys_addr_t addr, uint32_t value)
1157 {
1158 ppc405_gpio_t *gpio;
1159
1160 gpio = opaque;
1161 #ifdef DEBUG_GPIO
1162 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1163 #endif
1164 }
1165
1166 static CPUReadMemoryFunc *ppc405_gpio_read[] = {
1167 &ppc405_gpio_readb,
1168 &ppc405_gpio_readw,
1169 &ppc405_gpio_readl,
1170 };
1171
1172 static CPUWriteMemoryFunc *ppc405_gpio_write[] = {
1173 &ppc405_gpio_writeb,
1174 &ppc405_gpio_writew,
1175 &ppc405_gpio_writel,
1176 };
1177
1178 static void ppc405_gpio_reset (void *opaque)
1179 {
1180 ppc405_gpio_t *gpio;
1181
1182 gpio = opaque;
1183 }
1184
1185 void ppc405_gpio_init (CPUState *env, ppc4xx_mmio_t *mmio,
1186 target_phys_addr_t offset)
1187 {
1188 ppc405_gpio_t *gpio;
1189
1190 gpio = qemu_mallocz(sizeof(ppc405_gpio_t));
1191 if (gpio != NULL) {
1192 gpio->base = offset;
1193 ppc405_gpio_reset(gpio);
1194 qemu_register_reset(&ppc405_gpio_reset, gpio);
1195 #ifdef DEBUG_GPIO
1196 printf("%s: offset " PADDRX "\n", __func__, offset);
1197 #endif
1198 ppc4xx_mmio_register(env, mmio, offset, 0x038,
1199 ppc405_gpio_read, ppc405_gpio_write, gpio);
1200 }
1201 }
1202
1203 /*****************************************************************************/
1204 /* Serial ports */
1205 static CPUReadMemoryFunc *serial_mm_read[] = {
1206 &serial_mm_readb,
1207 &serial_mm_readw,
1208 &serial_mm_readl,
1209 };
1210
1211 static CPUWriteMemoryFunc *serial_mm_write[] = {
1212 &serial_mm_writeb,
1213 &serial_mm_writew,
1214 &serial_mm_writel,
1215 };
1216
1217 void ppc405_serial_init (CPUState *env, ppc4xx_mmio_t *mmio,
1218 target_phys_addr_t offset, qemu_irq irq,
1219 CharDriverState *chr)
1220 {
1221 void *serial;
1222
1223 #ifdef DEBUG_SERIAL
1224 printf("%s: offset " PADDRX "\n", __func__, offset);
1225 #endif
1226 serial = serial_mm_init(offset, 0, irq, chr, 0);
1227 ppc4xx_mmio_register(env, mmio, offset, 0x008,
1228 serial_mm_read, serial_mm_write, serial);
1229 }
1230
1231 /*****************************************************************************/
1232 /* On Chip Memory */
1233 enum {
1234 OCM0_ISARC = 0x018,
1235 OCM0_ISACNTL = 0x019,
1236 OCM0_DSARC = 0x01A,
1237 OCM0_DSACNTL = 0x01B,
1238 };
1239
1240 typedef struct ppc405_ocm_t ppc405_ocm_t;
1241 struct ppc405_ocm_t {
1242 target_ulong offset;
1243 uint32_t isarc;
1244 uint32_t isacntl;
1245 uint32_t dsarc;
1246 uint32_t dsacntl;
1247 };
1248
1249 static void ocm_update_mappings (ppc405_ocm_t *ocm,
1250 uint32_t isarc, uint32_t isacntl,
1251 uint32_t dsarc, uint32_t dsacntl)
1252 {
1253 #ifdef DEBUG_OCM
1254 printf("OCM update ISA %08" PRIx32 " %08" PRIx32 " (%08" PRIx32
1255 " %08" PRIx32 ") DSA %08" PRIx32 " %08" PRIx32
1256 " (%08" PRIx32 " %08" PRIx32 ")\n",
1257 isarc, isacntl, dsarc, dsacntl,
1258 ocm->isarc, ocm->isacntl, ocm->dsarc, ocm->dsacntl);
1259 #endif
1260 if (ocm->isarc != isarc ||
1261 (ocm->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
1262 if (ocm->isacntl & 0x80000000) {
1263 /* Unmap previously assigned memory region */
1264 printf("OCM unmap ISA %08" PRIx32 "\n", ocm->isarc);
1265 cpu_register_physical_memory(ocm->isarc, 0x04000000,
1266 IO_MEM_UNASSIGNED);
1267 }
1268 if (isacntl & 0x80000000) {
1269 /* Map new instruction memory region */
1270 #ifdef DEBUG_OCM
1271 printf("OCM map ISA %08" PRIx32 "\n", isarc);
1272 #endif
1273 cpu_register_physical_memory(isarc, 0x04000000,
1274 ocm->offset | IO_MEM_RAM);
1275 }
1276 }
1277 if (ocm->dsarc != dsarc ||
1278 (ocm->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
1279 if (ocm->dsacntl & 0x80000000) {
1280 /* Beware not to unmap the region we just mapped */
1281 if (!(isacntl & 0x80000000) || ocm->dsarc != isarc) {
1282 /* Unmap previously assigned memory region */
1283 #ifdef DEBUG_OCM
1284 printf("OCM unmap DSA %08" PRIx32 "\n", ocm->dsarc);
1285 #endif
1286 cpu_register_physical_memory(ocm->dsarc, 0x04000000,
1287 IO_MEM_UNASSIGNED);
1288 }
1289 }
1290 if (dsacntl & 0x80000000) {
1291 /* Beware not to remap the region we just mapped */
1292 if (!(isacntl & 0x80000000) || dsarc != isarc) {
1293 /* Map new data memory region */
1294 #ifdef DEBUG_OCM
1295 printf("OCM map DSA %08" PRIx32 "\n", dsarc);
1296 #endif
1297 cpu_register_physical_memory(dsarc, 0x04000000,
1298 ocm->offset | IO_MEM_RAM);
1299 }
1300 }
1301 }
1302 }
1303
1304 static target_ulong dcr_read_ocm (void *opaque, int dcrn)
1305 {
1306 ppc405_ocm_t *ocm;
1307 target_ulong ret;
1308
1309 ocm = opaque;
1310 switch (dcrn) {
1311 case OCM0_ISARC:
1312 ret = ocm->isarc;
1313 break;
1314 case OCM0_ISACNTL:
1315 ret = ocm->isacntl;
1316 break;
1317 case OCM0_DSARC:
1318 ret = ocm->dsarc;
1319 break;
1320 case OCM0_DSACNTL:
1321 ret = ocm->dsacntl;
1322 break;
1323 default:
1324 ret = 0;
1325 break;
1326 }
1327
1328 return ret;
1329 }
1330
1331 static void dcr_write_ocm (void *opaque, int dcrn, target_ulong val)
1332 {
1333 ppc405_ocm_t *ocm;
1334 uint32_t isarc, dsarc, isacntl, dsacntl;
1335
1336 ocm = opaque;
1337 isarc = ocm->isarc;
1338 dsarc = ocm->dsarc;
1339 isacntl = ocm->isacntl;
1340 dsacntl = ocm->dsacntl;
1341 switch (dcrn) {
1342 case OCM0_ISARC:
1343 isarc = val & 0xFC000000;
1344 break;
1345 case OCM0_ISACNTL:
1346 isacntl = val & 0xC0000000;
1347 break;
1348 case OCM0_DSARC:
1349 isarc = val & 0xFC000000;
1350 break;
1351 case OCM0_DSACNTL:
1352 isacntl = val & 0xC0000000;
1353 break;
1354 }
1355 ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
1356 ocm->isarc = isarc;
1357 ocm->dsarc = dsarc;
1358 ocm->isacntl = isacntl;
1359 ocm->dsacntl = dsacntl;
1360 }
1361
1362 static void ocm_reset (void *opaque)
1363 {
1364 ppc405_ocm_t *ocm;
1365 uint32_t isarc, dsarc, isacntl, dsacntl;
1366
1367 ocm = opaque;
1368 isarc = 0x00000000;
1369 isacntl = 0x00000000;
1370 dsarc = 0x00000000;
1371 dsacntl = 0x00000000;
1372 ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
1373 ocm->isarc = isarc;
1374 ocm->dsarc = dsarc;
1375 ocm->isacntl = isacntl;
1376 ocm->dsacntl = dsacntl;
1377 }
1378
1379 void ppc405_ocm_init (CPUState *env, unsigned long offset)
1380 {
1381 ppc405_ocm_t *ocm;
1382
1383 ocm = qemu_mallocz(sizeof(ppc405_ocm_t));
1384 if (ocm != NULL) {
1385 ocm->offset = offset;
1386 ocm_reset(ocm);
1387 qemu_register_reset(&ocm_reset, ocm);
1388 ppc_dcr_register(env, OCM0_ISARC,
1389 ocm, &dcr_read_ocm, &dcr_write_ocm);
1390 ppc_dcr_register(env, OCM0_ISACNTL,
1391 ocm, &dcr_read_ocm, &dcr_write_ocm);
1392 ppc_dcr_register(env, OCM0_DSARC,
1393 ocm, &dcr_read_ocm, &dcr_write_ocm);
1394 ppc_dcr_register(env, OCM0_DSACNTL,
1395 ocm, &dcr_read_ocm, &dcr_write_ocm);
1396 }
1397 }
1398
1399 /*****************************************************************************/
1400 /* I2C controller */
1401 typedef struct ppc4xx_i2c_t ppc4xx_i2c_t;
1402 struct ppc4xx_i2c_t {
1403 target_phys_addr_t base;
1404 qemu_irq irq;
1405 uint8_t mdata;
1406 uint8_t lmadr;
1407 uint8_t hmadr;
1408 uint8_t cntl;
1409 uint8_t mdcntl;
1410 uint8_t sts;
1411 uint8_t extsts;
1412 uint8_t sdata;
1413 uint8_t lsadr;
1414 uint8_t hsadr;
1415 uint8_t clkdiv;
1416 uint8_t intrmsk;
1417 uint8_t xfrcnt;
1418 uint8_t xtcntlss;
1419 uint8_t directcntl;
1420 };
1421
1422 static uint32_t ppc4xx_i2c_readb (void *opaque, target_phys_addr_t addr)
1423 {
1424 ppc4xx_i2c_t *i2c;
1425 uint32_t ret;
1426
1427 #ifdef DEBUG_I2C
1428 printf("%s: addr " PADDRX "\n", __func__, addr);
1429 #endif
1430 i2c = opaque;
1431 switch (addr - i2c->base) {
1432 case 0x00:
1433 // i2c_readbyte(&i2c->mdata);
1434 ret = i2c->mdata;
1435 break;
1436 case 0x02:
1437 ret = i2c->sdata;
1438 break;
1439 case 0x04:
1440 ret = i2c->lmadr;
1441 break;
1442 case 0x05:
1443 ret = i2c->hmadr;
1444 break;
1445 case 0x06:
1446 ret = i2c->cntl;
1447 break;
1448 case 0x07:
1449 ret = i2c->mdcntl;
1450 break;
1451 case 0x08:
1452 ret = i2c->sts;
1453 break;
1454 case 0x09:
1455 ret = i2c->extsts;
1456 break;
1457 case 0x0A:
1458 ret = i2c->lsadr;
1459 break;
1460 case 0x0B:
1461 ret = i2c->hsadr;
1462 break;
1463 case 0x0C:
1464 ret = i2c->clkdiv;
1465 break;
1466 case 0x0D:
1467 ret = i2c->intrmsk;
1468 break;
1469 case 0x0E:
1470 ret = i2c->xfrcnt;
1471 break;
1472 case 0x0F:
1473 ret = i2c->xtcntlss;
1474 break;
1475 case 0x10:
1476 ret = i2c->directcntl;
1477 break;
1478 default:
1479 ret = 0x00;
1480 break;
1481 }
1482 #ifdef DEBUG_I2C
1483 printf("%s: addr " PADDRX " %02" PRIx32 "\n", __func__, addr, ret);
1484 #endif
1485
1486 return ret;
1487 }
1488
1489 static void ppc4xx_i2c_writeb (void *opaque,
1490 target_phys_addr_t addr, uint32_t value)
1491 {
1492 ppc4xx_i2c_t *i2c;
1493
1494 #ifdef DEBUG_I2C
1495 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1496 #endif
1497 i2c = opaque;
1498 switch (addr - i2c->base) {
1499 case 0x00:
1500 i2c->mdata = value;
1501 // i2c_sendbyte(&i2c->mdata);
1502 break;
1503 case 0x02:
1504 i2c->sdata = value;
1505 break;
1506 case 0x04:
1507 i2c->lmadr = value;
1508 break;
1509 case 0x05:
1510 i2c->hmadr = value;
1511 break;
1512 case 0x06:
1513 i2c->cntl = value;
1514 break;
1515 case 0x07:
1516 i2c->mdcntl = value & 0xDF;
1517 break;
1518 case 0x08:
1519 i2c->sts &= ~(value & 0x0A);
1520 break;
1521 case 0x09:
1522 i2c->extsts &= ~(value & 0x8F);
1523 break;
1524 case 0x0A:
1525 i2c->lsadr = value;
1526 break;
1527 case 0x0B:
1528 i2c->hsadr = value;
1529 break;
1530 case 0x0C:
1531 i2c->clkdiv = value;
1532 break;
1533 case 0x0D:
1534 i2c->intrmsk = value;
1535 break;
1536 case 0x0E:
1537 i2c->xfrcnt = value & 0x77;
1538 break;
1539 case 0x0F:
1540 i2c->xtcntlss = value;
1541 break;
1542 case 0x10:
1543 i2c->directcntl = value & 0x7;
1544 break;
1545 }
1546 }
1547
1548 static uint32_t ppc4xx_i2c_readw (void *opaque, target_phys_addr_t addr)
1549 {
1550 uint32_t ret;
1551
1552 #ifdef DEBUG_I2C
1553 printf("%s: addr " PADDRX "\n", __func__, addr);
1554 #endif
1555 ret = ppc4xx_i2c_readb(opaque, addr) << 8;
1556 ret |= ppc4xx_i2c_readb(opaque, addr + 1);
1557
1558 return ret;
1559 }
1560
1561 static void ppc4xx_i2c_writew (void *opaque,
1562 target_phys_addr_t addr, uint32_t value)
1563 {
1564 #ifdef DEBUG_I2C
1565 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1566 #endif
1567 ppc4xx_i2c_writeb(opaque, addr, value >> 8);
1568 ppc4xx_i2c_writeb(opaque, addr + 1, value);
1569 }
1570
1571 static uint32_t ppc4xx_i2c_readl (void *opaque, target_phys_addr_t addr)
1572 {
1573 uint32_t ret;
1574
1575 #ifdef DEBUG_I2C
1576 printf("%s: addr " PADDRX "\n", __func__, addr);
1577 #endif
1578 ret = ppc4xx_i2c_readb(opaque, addr) << 24;
1579 ret |= ppc4xx_i2c_readb(opaque, addr + 1) << 16;
1580 ret |= ppc4xx_i2c_readb(opaque, addr + 2) << 8;
1581 ret |= ppc4xx_i2c_readb(opaque, addr + 3);
1582
1583 return ret;
1584 }
1585
1586 static void ppc4xx_i2c_writel (void *opaque,
1587 target_phys_addr_t addr, uint32_t value)
1588 {
1589 #ifdef DEBUG_I2C
1590 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1591 #endif
1592 ppc4xx_i2c_writeb(opaque, addr, value >> 24);
1593 ppc4xx_i2c_writeb(opaque, addr + 1, value >> 16);
1594 ppc4xx_i2c_writeb(opaque, addr + 2, value >> 8);
1595 ppc4xx_i2c_writeb(opaque, addr + 3, value);
1596 }
1597
1598 static CPUReadMemoryFunc *i2c_read[] = {
1599 &ppc4xx_i2c_readb,
1600 &ppc4xx_i2c_readw,
1601 &ppc4xx_i2c_readl,
1602 };
1603
1604 static CPUWriteMemoryFunc *i2c_write[] = {
1605 &ppc4xx_i2c_writeb,
1606 &ppc4xx_i2c_writew,
1607 &ppc4xx_i2c_writel,
1608 };
1609
1610 static void ppc4xx_i2c_reset (void *opaque)
1611 {
1612 ppc4xx_i2c_t *i2c;
1613
1614 i2c = opaque;
1615 i2c->mdata = 0x00;
1616 i2c->sdata = 0x00;
1617 i2c->cntl = 0x00;
1618 i2c->mdcntl = 0x00;
1619 i2c->sts = 0x00;
1620 i2c->extsts = 0x00;
1621 i2c->clkdiv = 0x00;
1622 i2c->xfrcnt = 0x00;
1623 i2c->directcntl = 0x0F;
1624 }
1625
1626 void ppc405_i2c_init (CPUState *env, ppc4xx_mmio_t *mmio,
1627 target_phys_addr_t offset, qemu_irq irq)
1628 {
1629 ppc4xx_i2c_t *i2c;
1630
1631 i2c = qemu_mallocz(sizeof(ppc4xx_i2c_t));
1632 if (i2c != NULL) {
1633 i2c->base = offset;
1634 i2c->irq = irq;
1635 ppc4xx_i2c_reset(i2c);
1636 #ifdef DEBUG_I2C
1637 printf("%s: offset " PADDRX "\n", __func__, offset);
1638 #endif
1639 ppc4xx_mmio_register(env, mmio, offset, 0x011,
1640 i2c_read, i2c_write, i2c);
1641 qemu_register_reset(ppc4xx_i2c_reset, i2c);
1642 }
1643 }
1644
1645 /*****************************************************************************/
1646 /* General purpose timers */
1647 typedef struct ppc4xx_gpt_t ppc4xx_gpt_t;
1648 struct ppc4xx_gpt_t {
1649 target_phys_addr_t base;
1650 int64_t tb_offset;
1651 uint32_t tb_freq;
1652 struct QEMUTimer *timer;
1653 qemu_irq irqs[5];
1654 uint32_t oe;
1655 uint32_t ol;
1656 uint32_t im;
1657 uint32_t is;
1658 uint32_t ie;
1659 uint32_t comp[5];
1660 uint32_t mask[5];
1661 };
1662
1663 static uint32_t ppc4xx_gpt_readb (void *opaque, target_phys_addr_t addr)
1664 {
1665 #ifdef DEBUG_GPT
1666 printf("%s: addr " PADDRX "\n", __func__, addr);
1667 #endif
1668 /* XXX: generate a bus fault */
1669 return -1;
1670 }
1671
1672 static void ppc4xx_gpt_writeb (void *opaque,
1673 target_phys_addr_t addr, uint32_t value)
1674 {
1675 #ifdef DEBUG_I2C
1676 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1677 #endif
1678 /* XXX: generate a bus fault */
1679 }
1680
1681 static uint32_t ppc4xx_gpt_readw (void *opaque, target_phys_addr_t addr)
1682 {
1683 #ifdef DEBUG_GPT
1684 printf("%s: addr " PADDRX "\n", __func__, addr);
1685 #endif
1686 /* XXX: generate a bus fault */
1687 return -1;
1688 }
1689
1690 static void ppc4xx_gpt_writew (void *opaque,
1691 target_phys_addr_t addr, uint32_t value)
1692 {
1693 #ifdef DEBUG_I2C
1694 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1695 #endif
1696 /* XXX: generate a bus fault */
1697 }
1698
1699 static int ppc4xx_gpt_compare (ppc4xx_gpt_t *gpt, int n)
1700 {
1701 /* XXX: TODO */
1702 return 0;
1703 }
1704
1705 static void ppc4xx_gpt_set_output (ppc4xx_gpt_t *gpt, int n, int level)
1706 {
1707 /* XXX: TODO */
1708 }
1709
1710 static void ppc4xx_gpt_set_outputs (ppc4xx_gpt_t *gpt)
1711 {
1712 uint32_t mask;
1713 int i;
1714
1715 mask = 0x80000000;
1716 for (i = 0; i < 5; i++) {
1717 if (gpt->oe & mask) {
1718 /* Output is enabled */
1719 if (ppc4xx_gpt_compare(gpt, i)) {
1720 /* Comparison is OK */
1721 ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask);
1722 } else {
1723 /* Comparison is KO */
1724 ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask ? 0 : 1);
1725 }
1726 }
1727 mask = mask >> 1;
1728 }
1729 }
1730
1731 static void ppc4xx_gpt_set_irqs (ppc4xx_gpt_t *gpt)
1732 {
1733 uint32_t mask;
1734 int i;
1735
1736 mask = 0x00008000;
1737 for (i = 0; i < 5; i++) {
1738 if (gpt->is & gpt->im & mask)
1739 qemu_irq_raise(gpt->irqs[i]);
1740 else
1741 qemu_irq_lower(gpt->irqs[i]);
1742 mask = mask >> 1;
1743 }
1744 }
1745
1746 static void ppc4xx_gpt_compute_timer (ppc4xx_gpt_t *gpt)
1747 {
1748 /* XXX: TODO */
1749 }
1750
1751 static uint32_t ppc4xx_gpt_readl (void *opaque, target_phys_addr_t addr)
1752 {
1753 ppc4xx_gpt_t *gpt;
1754 uint32_t ret;
1755 int idx;
1756
1757 #ifdef DEBUG_GPT
1758 printf("%s: addr " PADDRX "\n", __func__, addr);
1759 #endif
1760 gpt = opaque;
1761 switch (addr - gpt->base) {
1762 case 0x00:
1763 /* Time base counter */
1764 ret = muldiv64(qemu_get_clock(vm_clock) + gpt->tb_offset,
1765 gpt->tb_freq, ticks_per_sec);
1766 break;
1767 case 0x10:
1768 /* Output enable */
1769 ret = gpt->oe;
1770 break;
1771 case 0x14:
1772 /* Output level */
1773 ret = gpt->ol;
1774 break;
1775 case 0x18:
1776 /* Interrupt mask */
1777 ret = gpt->im;
1778 break;
1779 case 0x1C:
1780 case 0x20:
1781 /* Interrupt status */
1782 ret = gpt->is;
1783 break;
1784 case 0x24:
1785 /* Interrupt enable */
1786 ret = gpt->ie;
1787 break;
1788 case 0x80 ... 0x90:
1789 /* Compare timer */
1790 idx = ((addr - gpt->base) - 0x80) >> 2;
1791 ret = gpt->comp[idx];
1792 break;
1793 case 0xC0 ... 0xD0:
1794 /* Compare mask */
1795 idx = ((addr - gpt->base) - 0xC0) >> 2;
1796 ret = gpt->mask[idx];
1797 break;
1798 default:
1799 ret = -1;
1800 break;
1801 }
1802
1803 return ret;
1804 }
1805
1806 static void ppc4xx_gpt_writel (void *opaque,
1807 target_phys_addr_t addr, uint32_t value)
1808 {
1809 ppc4xx_gpt_t *gpt;
1810 int idx;
1811
1812 #ifdef DEBUG_I2C
1813 printf("%s: addr " PADDRX " val %08" PRIx32 "\n", __func__, addr, value);
1814 #endif
1815 gpt = opaque;
1816 switch (addr - gpt->base) {
1817 case 0x00:
1818 /* Time base counter */
1819 gpt->tb_offset = muldiv64(value, ticks_per_sec, gpt->tb_freq)
1820 - qemu_get_clock(vm_clock);
1821 ppc4xx_gpt_compute_timer(gpt);
1822 break;
1823 case 0x10:
1824 /* Output enable */
1825 gpt->oe = value & 0xF8000000;
1826 ppc4xx_gpt_set_outputs(gpt);
1827 break;
1828 case 0x14:
1829 /* Output level */
1830 gpt->ol = value & 0xF8000000;
1831 ppc4xx_gpt_set_outputs(gpt);
1832 break;
1833 case 0x18:
1834 /* Interrupt mask */
1835 gpt->im = value & 0x0000F800;
1836 break;
1837 case 0x1C:
1838 /* Interrupt status set */
1839 gpt->is |= value & 0x0000F800;
1840 ppc4xx_gpt_set_irqs(gpt);
1841 break;
1842 case 0x20:
1843 /* Interrupt status clear */
1844 gpt->is &= ~(value & 0x0000F800);
1845 ppc4xx_gpt_set_irqs(gpt);
1846 break;
1847 case 0x24:
1848 /* Interrupt enable */
1849 gpt->ie = value & 0x0000F800;
1850 ppc4xx_gpt_set_irqs(gpt);
1851 break;
1852 case 0x80 ... 0x90:
1853 /* Compare timer */
1854 idx = ((addr - gpt->base) - 0x80) >> 2;
1855 gpt->comp[idx] = value & 0xF8000000;
1856 ppc4xx_gpt_compute_timer(gpt);
1857 break;
1858 case 0xC0 ... 0xD0:
1859 /* Compare mask */
1860 idx = ((addr - gpt->base) - 0xC0) >> 2;
1861 gpt->mask[idx] = value & 0xF8000000;
1862 ppc4xx_gpt_compute_timer(gpt);
1863 break;
1864 }
1865 }
1866
1867 static CPUReadMemoryFunc *gpt_read[] = {
1868 &ppc4xx_gpt_readb,
1869 &ppc4xx_gpt_readw,
1870 &ppc4xx_gpt_readl,
1871 };
1872
1873 static CPUWriteMemoryFunc *gpt_write[] = {
1874 &ppc4xx_gpt_writeb,
1875 &ppc4xx_gpt_writew,
1876 &ppc4xx_gpt_writel,
1877 };
1878
1879 static void ppc4xx_gpt_cb (void *opaque)
1880 {
1881 ppc4xx_gpt_t *gpt;
1882
1883 gpt = opaque;
1884 ppc4xx_gpt_set_irqs(gpt);
1885 ppc4xx_gpt_set_outputs(gpt);
1886 ppc4xx_gpt_compute_timer(gpt);
1887 }
1888
1889 static void ppc4xx_gpt_reset (void *opaque)
1890 {
1891 ppc4xx_gpt_t *gpt;
1892 int i;
1893
1894 gpt = opaque;
1895 qemu_del_timer(gpt->timer);
1896 gpt->oe = 0x00000000;
1897 gpt->ol = 0x00000000;
1898 gpt->im = 0x00000000;
1899 gpt->is = 0x00000000;
1900 gpt->ie = 0x00000000;
1901 for (i = 0; i < 5; i++) {
1902 gpt->comp[i] = 0x00000000;
1903 gpt->mask[i] = 0x00000000;
1904 }
1905 }
1906
1907 void ppc4xx_gpt_init (CPUState *env, ppc4xx_mmio_t *mmio,
1908 target_phys_addr_t offset, qemu_irq irqs[5])
1909 {
1910 ppc4xx_gpt_t *gpt;
1911 int i;
1912
1913 gpt = qemu_mallocz(sizeof(ppc4xx_gpt_t));
1914 if (gpt != NULL) {
1915 gpt->base = offset;
1916 for (i = 0; i < 5; i++)
1917 gpt->irqs[i] = irqs[i];
1918 gpt->timer = qemu_new_timer(vm_clock, &ppc4xx_gpt_cb, gpt);
1919 ppc4xx_gpt_reset(gpt);
1920 #ifdef DEBUG_GPT
1921 printf("%s: offset " PADDRX "\n", __func__, offset);
1922 #endif
1923 ppc4xx_mmio_register(env, mmio, offset, 0x0D4,
1924 gpt_read, gpt_write, gpt);
1925 qemu_register_reset(ppc4xx_gpt_reset, gpt);
1926 }
1927 }
1928
1929 /*****************************************************************************/
1930 /* MAL */
1931 enum {
1932 MAL0_CFG = 0x180,
1933 MAL0_ESR = 0x181,
1934 MAL0_IER = 0x182,
1935 MAL0_TXCASR = 0x184,
1936 MAL0_TXCARR = 0x185,
1937 MAL0_TXEOBISR = 0x186,
1938 MAL0_TXDEIR = 0x187,
1939 MAL0_RXCASR = 0x190,
1940 MAL0_RXCARR = 0x191,
1941 MAL0_RXEOBISR = 0x192,
1942 MAL0_RXDEIR = 0x193,
1943 MAL0_TXCTP0R = 0x1A0,
1944 MAL0_TXCTP1R = 0x1A1,
1945 MAL0_TXCTP2R = 0x1A2,
1946 MAL0_TXCTP3R = 0x1A3,
1947 MAL0_RXCTP0R = 0x1C0,
1948 MAL0_RXCTP1R = 0x1C1,
1949 MAL0_RCBS0 = 0x1E0,
1950 MAL0_RCBS1 = 0x1E1,
1951 };
1952
1953 typedef struct ppc40x_mal_t ppc40x_mal_t;
1954 struct ppc40x_mal_t {
1955 qemu_irq irqs[4];
1956 uint32_t cfg;
1957 uint32_t esr;
1958 uint32_t ier;
1959 uint32_t txcasr;
1960 uint32_t txcarr;
1961 uint32_t txeobisr;
1962 uint32_t txdeir;
1963 uint32_t rxcasr;
1964 uint32_t rxcarr;
1965 uint32_t rxeobisr;
1966 uint32_t rxdeir;
1967 uint32_t txctpr[4];
1968 uint32_t rxctpr[2];
1969 uint32_t rcbs[2];
1970 };
1971
1972 static void ppc40x_mal_reset (void *opaque);
1973
1974 static target_ulong dcr_read_mal (void *opaque, int dcrn)
1975 {
1976 ppc40x_mal_t *mal;
1977 target_ulong ret;
1978
1979 mal = opaque;
1980 switch (dcrn) {
1981 case MAL0_CFG:
1982 ret = mal->cfg;
1983 break;
1984 case MAL0_ESR:
1985 ret = mal->esr;
1986 break;
1987 case MAL0_IER:
1988 ret = mal->ier;
1989 break;
1990 case MAL0_TXCASR:
1991 ret = mal->txcasr;
1992 break;
1993 case MAL0_TXCARR:
1994 ret = mal->txcarr;
1995 break;
1996 case MAL0_TXEOBISR:
1997 ret = mal->txeobisr;
1998 break;
1999 case MAL0_TXDEIR:
2000 ret = mal->txdeir;
2001 break;
2002 case MAL0_RXCASR:
2003 ret = mal->rxcasr;
2004 break;
2005 case MAL0_RXCARR:
2006 ret = mal->rxcarr;
2007 break;
2008 case MAL0_RXEOBISR:
2009 ret = mal->rxeobisr;
2010 break;
2011 case MAL0_RXDEIR:
2012 ret = mal->rxdeir;
2013 break;
2014 case MAL0_TXCTP0R:
2015 ret = mal->txctpr[0];
2016 break;
2017 case MAL0_TXCTP1R:
2018 ret = mal->txctpr[1];
2019 break;
2020 case MAL0_TXCTP2R:
2021 ret = mal->txctpr[2];
2022 break;
2023 case MAL0_TXCTP3R:
2024 ret = mal->txctpr[3];
2025 break;
2026 case MAL0_RXCTP0R:
2027 ret = mal->rxctpr[0];
2028 break;
2029 case MAL0_RXCTP1R:
2030 ret = mal->rxctpr[1];
2031 break;
2032 case MAL0_RCBS0:
2033 ret = mal->rcbs[0];
2034 break;
2035 case MAL0_RCBS1:
2036 ret = mal->rcbs[1];
2037 break;
2038 default:
2039 ret = 0;
2040 break;
2041 }
2042
2043 return ret;
2044 }
2045
2046 static void dcr_write_mal (void *opaque, int dcrn, target_ulong val)
2047 {
2048 ppc40x_mal_t *mal;
2049 int idx;
2050
2051 mal = opaque;
2052 switch (dcrn) {
2053 case MAL0_CFG:
2054 if (val & 0x80000000)
2055 ppc40x_mal_reset(mal);
2056 mal->cfg = val & 0x00FFC087;
2057 break;
2058 case MAL0_ESR:
2059 /* Read/clear */
2060 mal->esr &= ~val;
2061 break;
2062 case MAL0_IER:
2063 mal->ier = val & 0x0000001F;
2064 break;
2065 case MAL0_TXCASR:
2066 mal->txcasr = val & 0xF0000000;
2067 break;
2068 case MAL0_TXCARR:
2069 mal->txcarr = val & 0xF0000000;
2070 break;
2071 case MAL0_TXEOBISR:
2072 /* Read/clear */
2073 mal->txeobisr &= ~val;
2074 break;
2075 case MAL0_TXDEIR:
2076 /* Read/clear */
2077 mal->txdeir &= ~val;
2078 break;
2079 case MAL0_RXCASR:
2080 mal->rxcasr = val & 0xC0000000;
2081 break;
2082 case MAL0_RXCARR:
2083 mal->rxcarr = val & 0xC0000000;
2084 break;
2085 case MAL0_RXEOBISR:
2086 /* Read/clear */
2087 mal->rxeobisr &= ~val;
2088 break;
2089 case MAL0_RXDEIR:
2090 /* Read/clear */
2091 mal->rxdeir &= ~val;
2092 break;
2093 case MAL0_TXCTP0R:
2094 idx = 0;
2095 goto update_tx_ptr;
2096 case MAL0_TXCTP1R:
2097 idx = 1;
2098 goto update_tx_ptr;
2099 case MAL0_TXCTP2R:
2100 idx = 2;
2101 goto update_tx_ptr;
2102 case MAL0_TXCTP3R:
2103 idx = 3;
2104 update_tx_ptr:
2105 mal->txctpr[idx] = val;
2106 break;
2107 case MAL0_RXCTP0R:
2108 idx = 0;
2109 goto update_rx_ptr;
2110 case MAL0_RXCTP1R:
2111 idx = 1;
2112 update_rx_ptr:
2113 mal->rxctpr[idx] = val;
2114 break;
2115 case MAL0_RCBS0:
2116 idx = 0;
2117 goto update_rx_size;
2118 case MAL0_RCBS1:
2119 idx = 1;
2120 update_rx_size:
2121 mal->rcbs[idx] = val & 0x000000FF;
2122 break;
2123 }
2124 }
2125
2126 static void ppc40x_mal_reset (void *opaque)
2127 {
2128 ppc40x_mal_t *mal;
2129
2130 mal = opaque;
2131 mal->cfg = 0x0007C000;
2132 mal->esr = 0x00000000;
2133 mal->ier = 0x00000000;
2134 mal->rxcasr = 0x00000000;
2135 mal->rxdeir = 0x00000000;
2136 mal->rxeobisr = 0x00000000;
2137 mal->txcasr = 0x00000000;
2138 mal->txdeir = 0x00000000;
2139 mal->txeobisr = 0x00000000;
2140 }
2141
2142 void ppc405_mal_init (CPUState *env, qemu_irq irqs[4])
2143 {
2144 ppc40x_mal_t *mal;
2145 int i;
2146
2147 mal = qemu_mallocz(sizeof(ppc40x_mal_t));
2148 if (mal != NULL) {
2149 for (i = 0; i < 4; i++)
2150 mal->irqs[i] = irqs[i];
2151 ppc40x_mal_reset(mal);
2152 qemu_register_reset(&ppc40x_mal_reset, mal);
2153 ppc_dcr_register(env, MAL0_CFG,
2154 mal, &dcr_read_mal, &dcr_write_mal);
2155 ppc_dcr_register(env, MAL0_ESR,
2156 mal, &dcr_read_mal, &dcr_write_mal);
2157 ppc_dcr_register(env, MAL0_IER,
2158 mal, &dcr_read_mal, &dcr_write_mal);
2159 ppc_dcr_register(env, MAL0_TXCASR,
2160 mal, &dcr_read_mal, &dcr_write_mal);
2161 ppc_dcr_register(env, MAL0_TXCARR,
2162 mal, &dcr_read_mal, &dcr_write_mal);
2163 ppc_dcr_register(env, MAL0_TXEOBISR,
2164 mal, &dcr_read_mal, &dcr_write_mal);
2165 ppc_dcr_register(env, MAL0_TXDEIR,
2166 mal, &dcr_read_mal, &dcr_write_mal);
2167 ppc_dcr_register(env, MAL0_RXCASR,
2168 mal, &dcr_read_mal, &dcr_write_mal);
2169 ppc_dcr_register(env, MAL0_RXCARR,
2170 mal, &dcr_read_mal, &dcr_write_mal);
2171 ppc_dcr_register(env, MAL0_RXEOBISR,
2172 mal, &dcr_read_mal, &dcr_write_mal);
2173 ppc_dcr_register(env, MAL0_RXDEIR,
2174 mal, &dcr_read_mal, &dcr_write_mal);
2175 ppc_dcr_register(env, MAL0_TXCTP0R,
2176 mal, &dcr_read_mal, &dcr_write_mal);
2177 ppc_dcr_register(env, MAL0_TXCTP1R,
2178 mal, &dcr_read_mal, &dcr_write_mal);
2179 ppc_dcr_register(env, MAL0_TXCTP2R,
2180 mal, &dcr_read_mal, &dcr_write_mal);
2181 ppc_dcr_register(env, MAL0_TXCTP3R,
2182 mal, &dcr_read_mal, &dcr_write_mal);
2183 ppc_dcr_register(env, MAL0_RXCTP0R,
2184 mal, &dcr_read_mal, &dcr_write_mal);
2185 ppc_dcr_register(env, MAL0_RXCTP1R,
2186 mal, &dcr_read_mal, &dcr_write_mal);
2187 ppc_dcr_register(env, MAL0_RCBS0,
2188 mal, &dcr_read_mal, &dcr_write_mal);
2189 ppc_dcr_register(env, MAL0_RCBS1,
2190 mal, &dcr_read_mal, &dcr_write_mal);
2191 }
2192 }
2193
2194 /*****************************************************************************/
2195 /* SPR */
2196 void ppc40x_core_reset (CPUState *env)
2197 {
2198 target_ulong dbsr;
2199
2200 printf("Reset PowerPC core\n");
2201 env->interrupt_request |= CPU_INTERRUPT_EXITTB;
2202 /* XXX: TOFIX */
2203 #if 0
2204 cpu_ppc_reset(env);
2205 #else
2206 qemu_system_reset_request();
2207 #endif
2208 dbsr = env->spr[SPR_40x_DBSR];
2209 dbsr &= ~0x00000300;
2210 dbsr |= 0x00000100;
2211 env->spr[SPR_40x_DBSR] = dbsr;
2212 }
2213
2214 void ppc40x_chip_reset (CPUState *env)
2215 {
2216 target_ulong dbsr;
2217
2218 printf("Reset PowerPC chip\n");
2219 env->interrupt_request |= CPU_INTERRUPT_EXITTB;
2220 /* XXX: TOFIX */
2221 #if 0
2222 cpu_ppc_reset(env);
2223 #else
2224 qemu_system_reset_request();
2225 #endif
2226 /* XXX: TODO reset all internal peripherals */
2227 dbsr = env->spr[SPR_40x_DBSR];
2228 dbsr &= ~0x00000300;
2229 dbsr |= 0x00000200;
2230 env->spr[SPR_40x_DBSR] = dbsr;
2231 }
2232
2233 void ppc40x_system_reset (CPUState *env)
2234 {
2235 printf("Reset PowerPC system\n");
2236 qemu_system_reset_request();
2237 }
2238
2239 void store_40x_dbcr0 (CPUState *env, uint32_t val)
2240 {
2241 switch ((val >> 28) & 0x3) {
2242 case 0x0:
2243 /* No action */
2244 break;
2245 case 0x1:
2246 /* Core reset */
2247 ppc40x_core_reset(env);
2248 break;
2249 case 0x2:
2250 /* Chip reset */
2251 ppc40x_chip_reset(env);
2252 break;
2253 case 0x3:
2254 /* System reset */
2255 ppc40x_system_reset(env);
2256 break;
2257 }
2258 }
2259
2260 /*****************************************************************************/
2261 /* PowerPC 405CR */
2262 enum {
2263 PPC405CR_CPC0_PLLMR = 0x0B0,
2264 PPC405CR_CPC0_CR0 = 0x0B1,
2265 PPC405CR_CPC0_CR1 = 0x0B2,
2266 PPC405CR_CPC0_PSR = 0x0B4,
2267 PPC405CR_CPC0_JTAGID = 0x0B5,
2268 PPC405CR_CPC0_ER = 0x0B9,
2269 PPC405CR_CPC0_FR = 0x0BA,
2270 PPC405CR_CPC0_SR = 0x0BB,
2271 };
2272
2273 enum {
2274 PPC405CR_CPU_CLK = 0,
2275 PPC405CR_TMR_CLK = 1,
2276 PPC405CR_PLB_CLK = 2,
2277 PPC405CR_SDRAM_CLK = 3,
2278 PPC405CR_OPB_CLK = 4,
2279 PPC405CR_EXT_CLK = 5,
2280 PPC405CR_UART_CLK = 6,
2281 PPC405CR_CLK_NB = 7,
2282 };
2283
2284 typedef struct ppc405cr_cpc_t ppc405cr_cpc_t;
2285 struct ppc405cr_cpc_t {
2286 clk_setup_t clk_setup[PPC405CR_CLK_NB];
2287 uint32_t sysclk;
2288 uint32_t psr;
2289 uint32_t cr0;
2290 uint32_t cr1;
2291 uint32_t jtagid;
2292 uint32_t pllmr;
2293 uint32_t er;
2294 uint32_t fr;
2295 };
2296
2297 static void ppc405cr_clk_setup (ppc405cr_cpc_t *cpc)
2298 {
2299 uint64_t VCO_out, PLL_out;
2300 uint32_t CPU_clk, TMR_clk, SDRAM_clk, PLB_clk, OPB_clk, EXT_clk, UART_clk;
2301 int M, D0, D1, D2;
2302
2303 D0 = ((cpc->pllmr >> 26) & 0x3) + 1; /* CBDV */
2304 if (cpc->pllmr & 0x80000000) {
2305 D1 = (((cpc->pllmr >> 20) - 1) & 0xF) + 1; /* FBDV */
2306 D2 = 8 - ((cpc->pllmr >> 16) & 0x7); /* FWDVA */
2307 M = D0 * D1 * D2;
2308 VCO_out = cpc->sysclk * M;
2309 if (VCO_out < 400000000 || VCO_out > 800000000) {
2310 /* PLL cannot lock */
2311 cpc->pllmr &= ~0x80000000;
2312 goto bypass_pll;
2313 }
2314 PLL_out = VCO_out / D2;
2315 } else {
2316 /* Bypass PLL */
2317 bypass_pll:
2318 M = D0;
2319 PLL_out = cpc->sysclk * M;
2320 }
2321 CPU_clk = PLL_out;
2322 if (cpc->cr1 & 0x00800000)
2323 TMR_clk = cpc->sysclk; /* Should have a separate clock */
2324 else
2325 TMR_clk = CPU_clk;
2326 PLB_clk = CPU_clk / D0;
2327 SDRAM_clk = PLB_clk;
2328 D0 = ((cpc->pllmr >> 10) & 0x3) + 1;
2329 OPB_clk = PLB_clk / D0;
2330 D0 = ((cpc->pllmr >> 24) & 0x3) + 2;
2331 EXT_clk = PLB_clk / D0;
2332 D0 = ((cpc->cr0 >> 1) & 0x1F) + 1;
2333 UART_clk = CPU_clk / D0;
2334 /* Setup CPU clocks */
2335 clk_setup(&cpc->clk_setup[PPC405CR_CPU_CLK], CPU_clk);
2336 /* Setup time-base clock */
2337 clk_setup(&cpc->clk_setup[PPC405CR_TMR_CLK], TMR_clk);
2338 /* Setup PLB clock */
2339 clk_setup(&cpc->clk_setup[PPC405CR_PLB_CLK], PLB_clk);
2340 /* Setup SDRAM clock */
2341 clk_setup(&cpc->clk_setup[PPC405CR_SDRAM_CLK], SDRAM_clk);
2342 /* Setup OPB clock */
2343 clk_setup(&cpc->clk_setup[PPC405CR_OPB_CLK], OPB_clk);
2344 /* Setup external clock */
2345 clk_setup(&cpc->clk_setup[PPC405CR_EXT_CLK], EXT_clk);
2346 /* Setup UART clock */
2347 clk_setup(&cpc->clk_setup[PPC405CR_UART_CLK], UART_clk);
2348 }
2349
2350 static target_ulong dcr_read_crcpc (void *opaque, int dcrn)
2351 {
2352 ppc405cr_cpc_t *cpc;
2353 target_ulong ret;
2354
2355 cpc = opaque;
2356 switch (dcrn) {
2357 case PPC405CR_CPC0_PLLMR:
2358 ret = cpc->pllmr;
2359 break;
2360 case PPC405CR_CPC0_CR0:
2361 ret = cpc->cr0;
2362 break;
2363 case PPC405CR_CPC0_CR1:
2364 ret = cpc->cr1;
2365 break;
2366 case PPC405CR_CPC0_PSR:
2367 ret = cpc->psr;
2368 break;
2369 case PPC405CR_CPC0_JTAGID:
2370 ret = cpc->jtagid;
2371 break;
2372 case PPC405CR_CPC0_ER:
2373 ret = cpc->er;
2374 break;
2375 case PPC405CR_CPC0_FR:
2376 ret = cpc->fr;
2377 break;
2378 case PPC405CR_CPC0_SR:
2379 ret = ~(cpc->er | cpc->fr) & 0xFFFF0000;
2380 break;
2381 default:
2382 /* Avoid gcc warning */
2383 ret = 0;
2384 break;
2385 }
2386
2387 return ret;
2388 }
2389
2390 static void dcr_write_crcpc (void *opaque, int dcrn, target_ulong val)
2391 {
2392 ppc405cr_cpc_t *cpc;
2393
2394 cpc = opaque;
2395 switch (dcrn) {
2396 case PPC405CR_CPC0_PLLMR:
2397 cpc->pllmr = val & 0xFFF77C3F;
2398 break;
2399 case PPC405CR_CPC0_CR0:
2400 cpc->cr0 = val & 0x0FFFFFFE;
2401 break;
2402 case PPC405CR_CPC0_CR1:
2403 cpc->cr1 = val & 0x00800000;
2404 break;
2405 case PPC405CR_CPC0_PSR:
2406 /* Read-only */
2407 break;
2408 case PPC405CR_CPC0_JTAGID:
2409 /* Read-only */
2410 break;
2411 case PPC405CR_CPC0_ER:
2412 cpc->er = val & 0xBFFC0000;
2413 break;
2414 case PPC405CR_CPC0_FR:
2415 cpc->fr = val & 0xBFFC0000;
2416 break;
2417 case PPC405CR_CPC0_SR:
2418 /* Read-only */
2419 break;
2420 }
2421 }
2422
2423 static void ppc405cr_cpc_reset (void *opaque)
2424 {
2425 ppc405cr_cpc_t *cpc;
2426 int D;
2427
2428 cpc = opaque;
2429 /* Compute PLLMR value from PSR settings */
2430 cpc->pllmr = 0x80000000;
2431 /* PFWD */
2432 switch ((cpc->psr >> 30) & 3) {
2433 case 0:
2434 /* Bypass */
2435 cpc->pllmr &= ~0x80000000;
2436 break;
2437 case 1:
2438 /* Divide by 3 */
2439 cpc->pllmr |= 5 << 16;
2440 break;
2441 case 2:
2442 /* Divide by 4 */
2443 cpc->pllmr |= 4 << 16;
2444 break;
2445 case 3:
2446 /* Divide by 6 */
2447 cpc->pllmr |= 2 << 16;
2448 break;
2449 }
2450 /* PFBD */
2451 D = (cpc->psr >> 28) & 3;
2452 cpc->pllmr |= (D + 1) << 20;
2453 /* PT */
2454 D = (cpc->psr >> 25) & 7;
2455 switch (D) {
2456 case 0x2:
2457 cpc->pllmr |= 0x13;
2458 break;
2459 case 0x4:
2460 cpc->pllmr |= 0x15;
2461 break;
2462 case 0x5:
2463 cpc->pllmr |= 0x16;
2464 break;
2465 default:
2466 break;
2467 }
2468 /* PDC */
2469 D = (cpc->psr >> 23) & 3;
2470 cpc->pllmr |= D << 26;
2471 /* ODP */
2472 D = (cpc->psr >> 21) & 3;
2473 cpc->pllmr |= D << 10;
2474 /* EBPD */
2475 D = (cpc->psr >> 17) & 3;
2476 cpc->pllmr |= D << 24;
2477 cpc->cr0 = 0x0000003C;
2478 cpc->cr1 = 0x2B0D8800;
2479 cpc->er = 0x00000000;
2480 cpc->fr = 0x00000000;
2481 ppc405cr_clk_setup(cpc);
2482 }
2483
2484 static void ppc405cr_clk_init (ppc405cr_cpc_t *cpc)
2485 {
2486 int D;
2487
2488 /* XXX: this should be read from IO pins */
2489 cpc->psr = 0x00000000; /* 8 bits ROM */
2490 /* PFWD */
2491 D = 0x2; /* Divide by 4 */
2492 cpc->psr |= D << 30;
2493 /* PFBD */
2494 D = 0x1; /* Divide by 2 */
2495 cpc->psr |= D << 28;
2496 /* PDC */
2497 D = 0x1; /* Divide by 2 */
2498 cpc->psr |= D << 23;
2499 /* PT */
2500 D = 0x5; /* M = 16 */
2501 cpc->psr |= D << 25;
2502 /* ODP */
2503 D = 0x1; /* Divide by 2 */
2504 cpc->psr |= D << 21;
2505 /* EBDP */
2506 D = 0x2; /* Divide by 4 */
2507 cpc->psr |= D << 17;
2508 }
2509
2510 static void ppc405cr_cpc_init (CPUState *env, clk_setup_t clk_setup[7],
2511 uint32_t sysclk)
2512 {
2513 ppc405cr_cpc_t *cpc;
2514
2515 cpc = qemu_mallocz(sizeof(ppc405cr_cpc_t));
2516 if (cpc != NULL) {
2517 memcpy(cpc->clk_setup, clk_setup,
2518 PPC405CR_CLK_NB * sizeof(clk_setup_t));
2519 cpc->sysclk = sysclk;
2520 cpc->jtagid = 0x42051049;
2521 ppc_dcr_register(env, PPC405CR_CPC0_PSR, cpc,
2522 &dcr_read_crcpc, &dcr_write_crcpc);
2523 ppc_dcr_register(env, PPC405CR_CPC0_CR0, cpc,
2524 &dcr_read_crcpc, &dcr_write_crcpc);
2525 ppc_dcr_register(env, PPC405CR_CPC0_CR1, cpc,
2526 &dcr_read_crcpc, &dcr_write_crcpc);
2527 ppc_dcr_register(env, PPC405CR_CPC0_JTAGID, cpc,
2528 &dcr_read_crcpc, &dcr_write_crcpc);
2529 ppc_dcr_register(env, PPC405CR_CPC0_PLLMR, cpc,
2530 &dcr_read_crcpc, &dcr_write_crcpc);
2531 ppc_dcr_register(env, PPC405CR_CPC0_ER, cpc,
2532 &dcr_read_crcpc, &dcr_write_crcpc);
2533 ppc_dcr_register(env, PPC405CR_CPC0_FR, cpc,
2534 &dcr_read_crcpc, &dcr_write_crcpc);
2535 ppc_dcr_register(env, PPC405CR_CPC0_SR, cpc,
2536 &dcr_read_crcpc, &dcr_write_crcpc);
2537 ppc405cr_clk_init(cpc);
2538 qemu_register_reset(ppc405cr_cpc_reset, cpc);
2539 ppc405cr_cpc_reset(cpc);
2540 }
2541 }
2542
2543 CPUState *ppc405cr_init (target_phys_addr_t ram_bases[4],
2544 target_phys_addr_t ram_sizes[4],
2545 uint32_t sysclk, qemu_irq **picp,
2546 ram_addr_t *offsetp, int do_init)
2547 {
2548 clk_setup_t clk_setup[PPC405CR_CLK_NB];
2549 qemu_irq dma_irqs[4];
2550 CPUState *env;
2551 ppc4xx_mmio_t *mmio;
2552 qemu_irq *pic, *irqs;
2553 ram_addr_t offset;
2554 int i;
2555
2556 memset(clk_setup, 0, sizeof(clk_setup));
2557 env = ppc4xx_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
2558 &clk_setup[PPC405CR_TMR_CLK], sysclk);
2559 /* Memory mapped devices registers */
2560 mmio = ppc4xx_mmio_init(env, 0xEF600000);
2561 /* PLB arbitrer */
2562 ppc4xx_plb_init(env);
2563 /* PLB to OPB bridge */
2564 ppc4xx_pob_init(env);
2565 /* OBP arbitrer */
2566 ppc4xx_opba_init(env, mmio, 0x600);
2567 /* Universal interrupt controller */
2568 irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
2569 irqs[PPCUIC_OUTPUT_INT] =
2570 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
2571 irqs[PPCUIC_OUTPUT_CINT] =
2572 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
2573 pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
2574 *picp = pic;
2575 /* SDRAM controller */
2576 ppc405_sdram_init(env, pic[14], 1, ram_bases, ram_sizes, do_init);
2577 offset = 0;
2578 for (i = 0; i < 4; i++)
2579 offset += ram_sizes[i];
2580 /* External bus controller */
2581 ppc405_ebc_init(env);
2582 /* DMA controller */
2583 dma_irqs[0] = pic[26];
2584 dma_irqs[1] = pic[25];
2585 dma_irqs[2] = pic[24];
2586 dma_irqs[3] = pic[23];
2587 ppc405_dma_init(env, dma_irqs);
2588 /* Serial ports */
2589 if (serial_hds[0] != NULL) {
2590 ppc405_serial_init(env, mmio, 0x300, pic[31], serial_hds[0]);
2591 }
2592 if (serial_hds[1] != NULL) {
2593 ppc405_serial_init(env, mmio, 0x400, pic[30], serial_hds[1]);
2594 }
2595 /* IIC controller */
2596 ppc405_i2c_init(env, mmio, 0x500, pic[29]);
2597 /* GPIO */
2598 ppc405_gpio_init(env, mmio, 0x700);
2599 /* CPU control */
2600 ppc405cr_cpc_init(env, clk_setup, sysclk);
2601 *offsetp = offset;
2602
2603 return env;
2604 }
2605
2606 /*****************************************************************************/
2607 /* PowerPC 405EP */
2608 /* CPU control */
2609 enum {
2610 PPC405EP_CPC0_PLLMR0 = 0x0F0,
2611 PPC405EP_CPC0_BOOT = 0x0F1,
2612 PPC405EP_CPC0_EPCTL = 0x0F3,
2613 PPC405EP_CPC0_PLLMR1 = 0x0F4,
2614 PPC405EP_CPC0_UCR = 0x0F5,
2615 PPC405EP_CPC0_SRR = 0x0F6,
2616 PPC405EP_CPC0_JTAGID = 0x0F7,
2617 PPC405EP_CPC0_PCI = 0x0F9,
2618 #if 0
2619 PPC405EP_CPC0_ER = xxx,
2620 PPC405EP_CPC0_FR = xxx,
2621 PPC405EP_CPC0_SR = xxx,
2622 #endif
2623 };
2624
2625 enum {
2626 PPC405EP_CPU_CLK = 0,
2627 PPC405EP_PLB_CLK = 1,
2628 PPC405EP_OPB_CLK = 2,
2629 PPC405EP_EBC_CLK = 3,
2630 PPC405EP_MAL_CLK = 4,
2631 PPC405EP_PCI_CLK = 5,
2632 PPC405EP_UART0_CLK = 6,
2633 PPC405EP_UART1_CLK = 7,
2634 PPC405EP_CLK_NB = 8,
2635 };
2636
2637 typedef struct ppc405ep_cpc_t ppc405ep_cpc_t;
2638 struct ppc405ep_cpc_t {
2639 uint32_t sysclk;
2640 clk_setup_t clk_setup[PPC405EP_CLK_NB];
2641 uint32_t boot;
2642 uint32_t epctl;
2643 uint32_t pllmr[2];
2644 uint32_t ucr;
2645 uint32_t srr;
2646 uint32_t jtagid;
2647 uint32_t pci;
2648 /* Clock and power management */
2649 uint32_t er;
2650 uint32_t fr;
2651 uint32_t sr;
2652 };
2653
2654 static void ppc405ep_compute_clocks (ppc405ep_cpc_t *cpc)
2655 {
2656 uint32_t CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk;
2657 uint32_t UART0_clk, UART1_clk;
2658 uint64_t VCO_out, PLL_out;
2659 int M, D;
2660
2661 VCO_out = 0;
2662 if ((cpc->pllmr[1] & 0x80000000) && !(cpc->pllmr[1] & 0x40000000)) {
2663 M = (((cpc->pllmr[1] >> 20) - 1) & 0xF) + 1; /* FBMUL */
2664 #ifdef DEBUG_CLOCKS_LL
2665 printf("FBMUL %01" PRIx32 " %d\n", (cpc->pllmr[1] >> 20) & 0xF, M);
2666 #endif
2667 D = 8 - ((cpc->pllmr[1] >> 16) & 0x7); /* FWDA */
2668 #ifdef DEBUG_CLOCKS_LL
2669 printf("FWDA %01" PRIx32 " %d\n", (cpc->pllmr[1] >> 16) & 0x7, D);
2670 #endif
2671 VCO_out = cpc->sysclk * M * D;
2672 if (VCO_out < 500000000UL || VCO_out > 1000000000UL) {
2673 /* Error - unlock the PLL */
2674 printf("VCO out of range %" PRIu64 "\n", VCO_out);
2675 #if 0
2676 cpc->pllmr[1] &= ~0x80000000;
2677 goto pll_bypass;
2678 #endif
2679 }
2680 PLL_out = VCO_out / D;
2681 /* Pretend the PLL is locked */
2682 cpc->boot |= 0x00000001;
2683 } else {
2684 #if 0
2685 pll_bypass:
2686 #endif
2687 PLL_out = cpc->sysclk;
2688 if (cpc->pllmr[1] & 0x40000000) {
2689 /* Pretend the PLL is not locked */
2690 cpc->boot &= ~0x00000001;
2691 }
2692 }
2693 /* Now, compute all other clocks */
2694 D = ((cpc->pllmr[0] >> 20) & 0x3) + 1; /* CCDV */
2695 #ifdef DEBUG_CLOCKS_LL
2696 printf("CCDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 20) & 0x3, D);
2697 #endif
2698 CPU_clk = PLL_out / D;
2699 D = ((cpc->pllmr[0] >> 16) & 0x3) + 1; /* CBDV */
2700 #ifdef DEBUG_CLOCKS_LL
2701 printf("CBDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 16) & 0x3, D);
2702 #endif
2703 PLB_clk = CPU_clk / D;
2704 D = ((cpc->pllmr[0] >> 12) & 0x3) + 1; /* OPDV */
2705 #ifdef DEBUG_CLOCKS_LL
2706 printf("OPDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 12) & 0x3, D);
2707 #endif
2708 OPB_clk = PLB_clk / D;
2709 D = ((cpc->pllmr[0] >> 8) & 0x3) + 2; /* EPDV */
2710 #ifdef DEBUG_CLOCKS_LL
2711 printf("EPDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 8) & 0x3, D);
2712 #endif
2713 EBC_clk = PLB_clk / D;
2714 D = ((cpc->pllmr[0] >> 4) & 0x3) + 1; /* MPDV */
2715 #ifdef DEBUG_CLOCKS_LL
2716 printf("MPDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 4) & 0x3, D);
2717 #endif
2718 MAL_clk = PLB_clk / D;
2719 D = (cpc->pllmr[0] & 0x3) + 1; /* PPDV */
2720 #ifdef DEBUG_CLOCKS_LL
2721 printf("PPDV %01" PRIx32 " %d\n", cpc->pllmr[0] & 0x3, D);
2722 #endif
2723 PCI_clk = PLB_clk / D;
2724 D = ((cpc->ucr - 1) & 0x7F) + 1; /* U0DIV */
2725 #ifdef DEBUG_CLOCKS_LL
2726 printf("U0DIV %01" PRIx32 " %d\n", cpc->ucr & 0x7F, D);
2727 #endif
2728 UART0_clk = PLL_out / D;
2729 D = (((cpc->ucr >> 8) - 1) & 0x7F) + 1; /* U1DIV */
2730 #ifdef DEBUG_CLOCKS_LL
2731 printf("U1DIV %01" PRIx32 " %d\n", (cpc->ucr >> 8) & 0x7F, D);
2732 #endif
2733 UART1_clk = PLL_out / D;
2734 #ifdef DEBUG_CLOCKS
2735 printf("Setup PPC405EP clocks - sysclk %" PRIu32 " VCO %" PRIu64
2736 " PLL out %" PRIu64 " Hz\n", cpc->sysclk, VCO_out, PLL_out);
2737 printf("CPU %" PRIu32 " PLB %" PRIu32 " OPB %" PRIu32 " EBC %" PRIu32
2738 " MAL %" PRIu32 " PCI %" PRIu32 " UART0 %" PRIu32
2739 " UART1 %" PRIu32 "\n",
2740 CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk,
2741 UART0_clk, UART1_clk);
2742 #endif
2743 /* Setup CPU clocks */
2744 clk_setup(&cpc->clk_setup[PPC405EP_CPU_CLK], CPU_clk);
2745 /* Setup PLB clock */
2746 clk_setup(&cpc->clk_setup[PPC405EP_PLB_CLK], PLB_clk);
2747 /* Setup OPB clock */
2748 clk_setup(&cpc->clk_setup[PPC405EP_OPB_CLK], OPB_clk);
2749 /* Setup external clock */
2750 clk_setup(&cpc->clk_setup[PPC405EP_EBC_CLK], EBC_clk);
2751 /* Setup MAL clock */
2752 clk_setup(&cpc->clk_setup[PPC405EP_MAL_CLK], MAL_clk);
2753 /* Setup PCI clock */
2754 clk_setup(&cpc->clk_setup[PPC405EP_PCI_CLK], PCI_clk);
2755 /* Setup UART0 clock */
2756 clk_setup(&cpc->clk_setup[PPC405EP_UART0_CLK], UART0_clk);
2757 /* Setup UART1 clock */
2758 clk_setup(&cpc->clk_setup[PPC405EP_UART1_CLK], UART1_clk);
2759 }
2760
2761 static target_ulong dcr_read_epcpc (void *opaque, int dcrn)
2762 {
2763 ppc405ep_cpc_t *cpc;
2764 target_ulong ret;
2765
2766 cpc = opaque;
2767 switch (dcrn) {
2768 case PPC405EP_CPC0_BOOT:
2769 ret = cpc->boot;
2770 break;
2771 case PPC405EP_CPC0_EPCTL:
2772 ret = cpc->epctl;
2773 break;
2774 case PPC405EP_CPC0_PLLMR0:
2775 ret = cpc->pllmr[0];
2776 break;
2777 case PPC405EP_CPC0_PLLMR1:
2778 ret = cpc->pllmr[1];
2779 break;
2780 case PPC405EP_CPC0_UCR:
2781 ret = cpc->ucr;
2782 break;
2783 case PPC405EP_CPC0_SRR:
2784 ret = cpc->srr;
2785 break;
2786 case PPC405EP_CPC0_JTAGID:
2787 ret = cpc->jtagid;
2788 break;
2789 case PPC405EP_CPC0_PCI:
2790 ret = cpc->pci;
2791 break;
2792 default:
2793 /* Avoid gcc warning */
2794 ret = 0;
2795 break;
2796 }
2797
2798 return ret;
2799 }
2800
2801 static void dcr_write_epcpc (void *opaque, int dcrn, target_ulong val)
2802 {
2803 ppc405ep_cpc_t *cpc;
2804
2805 cpc = opaque;
2806 switch (dcrn) {
2807 case PPC405EP_CPC0_BOOT:
2808 /* Read-only register */
2809 break;
2810 case PPC405EP_CPC0_EPCTL:
2811 /* Don't care for now */
2812 cpc->epctl = val & 0xC00000F3;
2813 break;
2814 case PPC405EP_CPC0_PLLMR0:
2815 cpc->pllmr[0] = val & 0x00633333;
2816 ppc405ep_compute_clocks(cpc);
2817 break;
2818 case PPC405EP_CPC0_PLLMR1:
2819 cpc->pllmr[1] = val & 0xC0F73FFF;
2820 ppc405ep_compute_clocks(cpc);
2821 break;
2822 case PPC405EP_CPC0_UCR:
2823 /* UART control - don't care for now */
2824 cpc->ucr = val & 0x003F7F7F;
2825 break;
2826 case PPC405EP_CPC0_SRR:
2827 cpc->srr = val;
2828 break;
2829 case PPC405EP_CPC0_JTAGID:
2830 /* Read-only */
2831 break;
2832 case PPC405EP_CPC0_PCI:
2833 cpc->pci = val;
2834 break;
2835 }
2836 }
2837
2838 static void ppc405ep_cpc_reset (void *opaque)
2839 {
2840 ppc405ep_cpc_t *cpc = opaque;
2841
2842 cpc->boot = 0x00000010; /* Boot from PCI - IIC EEPROM disabled */
2843 cpc->epctl = 0x00000000;
2844 cpc->pllmr[0] = 0x00011010;
2845 cpc->pllmr[1] = 0x40000000;
2846 cpc->ucr = 0x00000000;
2847 cpc->srr = 0x00040000;
2848 cpc->pci = 0x00000000;
2849 cpc->er = 0x00000000;
2850 cpc->fr = 0x00000000;
2851 cpc->sr = 0x00000000;
2852 ppc405ep_compute_clocks(cpc);
2853 }
2854
2855 /* XXX: sysclk should be between 25 and 100 MHz */
2856 static void ppc405ep_cpc_init (CPUState *env, clk_setup_t clk_setup[8],
2857 uint32_t sysclk)
2858 {
2859 ppc405ep_cpc_t *cpc;
2860
2861 cpc = qemu_mallocz(sizeof(ppc405ep_cpc_t));
2862 if (cpc != NULL) {
2863 memcpy(cpc->clk_setup, clk_setup,
2864 PPC405EP_CLK_NB * sizeof(clk_setup_t));
2865 cpc->jtagid = 0x20267049;
2866 cpc->sysclk = sysclk;
2867 ppc405ep_cpc_reset(cpc);
2868 qemu_register_reset(&ppc405ep_cpc_reset, cpc);
2869 ppc_dcr_register(env, PPC405EP_CPC0_BOOT, cpc,
2870 &dcr_read_epcpc, &dcr_write_epcpc);
2871 ppc_dcr_register(env, PPC405EP_CPC0_EPCTL, cpc,
2872 &dcr_read_epcpc, &dcr_write_epcpc);
2873 ppc_dcr_register(env, PPC405EP_CPC0_PLLMR0, cpc,
2874 &dcr_read_epcpc, &dcr_write_epcpc);
2875 ppc_dcr_register(env, PPC405EP_CPC0_PLLMR1, cpc,
2876 &dcr_read_epcpc, &dcr_write_epcpc);
2877 ppc_dcr_register(env, PPC405EP_CPC0_UCR, cpc,
2878 &dcr_read_epcpc, &dcr_write_epcpc);
2879 ppc_dcr_register(env, PPC405EP_CPC0_SRR, cpc,
2880 &dcr_read_epcpc, &dcr_write_epcpc);
2881 ppc_dcr_register(env, PPC405EP_CPC0_JTAGID, cpc,
2882 &dcr_read_epcpc, &dcr_write_epcpc);
2883 ppc_dcr_register(env, PPC405EP_CPC0_PCI, cpc,
2884 &dcr_read_epcpc, &dcr_write_epcpc);
2885 #if 0
2886 ppc_dcr_register(env, PPC405EP_CPC0_ER, cpc,
2887 &dcr_read_epcpc, &dcr_write_epcpc);
2888 ppc_dcr_register(env, PPC405EP_CPC0_FR, cpc,
2889 &dcr_read_epcpc, &dcr_write_epcpc);
2890 ppc_dcr_register(env, PPC405EP_CPC0_SR, cpc,
2891 &dcr_read_epcpc, &dcr_write_epcpc);
2892 #endif
2893 }
2894 }
2895
2896 CPUState *ppc405ep_init (target_phys_addr_t ram_bases[2],
2897 target_phys_addr_t ram_sizes[2],
2898 uint32_t sysclk, qemu_irq **picp,
2899 ram_addr_t *offsetp, int do_init)
2900 {
2901 clk_setup_t clk_setup[PPC405EP_CLK_NB], tlb_clk_setup;
2902 qemu_irq dma_irqs[4], gpt_irqs[5], mal_irqs[4];
2903 CPUState *env;
2904 ppc4xx_mmio_t *mmio;
2905 qemu_irq *pic, *irqs;
2906 ram_addr_t offset;
2907 int i;
2908
2909 memset(clk_setup, 0, sizeof(clk_setup));
2910 /* init CPUs */
2911 env = ppc4xx_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
2912 &tlb_clk_setup, sysclk);
2913 clk_setup[PPC405EP_CPU_CLK].cb = tlb_clk_setup.cb;
2914 clk_setup[PPC405EP_CPU_CLK].opaque = tlb_clk_setup.opaque;
2915 /* Internal devices init */
2916 /* Memory mapped devices registers */
2917 mmio = ppc4xx_mmio_init(env, 0xEF600000);
2918 /* PLB arbitrer */
2919 ppc4xx_plb_init(env);
2920 /* PLB to OPB bridge */
2921 ppc4xx_pob_init(env);
2922 /* OBP arbitrer */
2923 ppc4xx_opba_init(env, mmio, 0x600);
2924 /* Universal interrupt controller */
2925 irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
2926 irqs[PPCUIC_OUTPUT_INT] =
2927 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
2928 irqs[PPCUIC_OUTPUT_CINT] =
2929 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
2930 pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
2931 *picp = pic;
2932 /* SDRAM controller */
2933 ppc405_sdram_init(env, pic[14], 2, ram_bases, ram_sizes, do_init);
2934 offset = 0;
2935 for (i = 0; i < 2; i++)
2936 offset += ram_sizes[i];
2937 /* External bus controller */
2938 ppc405_ebc_init(env);
2939 /* DMA controller */
2940 dma_irqs[0] = pic[26];
2941 dma_irqs[1] = pic[25];
2942 dma_irqs[2] = pic[24];
2943 dma_irqs[3] = pic[23];
2944 ppc405_dma_init(env, dma_irqs);
2945 /* IIC controller */
2946 ppc405_i2c_init(env, mmio, 0x500, pic[29]);
2947 /* GPIO */
2948 ppc405_gpio_init(env, mmio, 0x700);
2949 /* Serial ports */
2950 if (serial_hds[0] != NULL) {
2951 ppc405_serial_init(env, mmio, 0x300, pic[31], serial_hds[0]);
2952 }
2953 if (serial_hds[1] != NULL) {
2954 ppc405_serial_init(env, mmio, 0x400, pic[30], serial_hds[1]);
2955 }
2956 /* OCM */
2957 ppc405_ocm_init(env, ram_sizes[0] + ram_sizes[1]);
2958 offset += 4096;
2959 /* GPT */
2960 gpt_irqs[0] = pic[12];
2961 gpt_irqs[1] = pic[11];
2962 gpt_irqs[2] = pic[10];
2963 gpt_irqs[3] = pic[9];
2964 gpt_irqs[4] = pic[8];
2965 ppc4xx_gpt_init(env, mmio, 0x000, gpt_irqs);
2966 /* PCI */
2967 /* Uses pic[28], pic[15], pic[13] */
2968 /* MAL */
2969 mal_irqs[0] = pic[20];
2970 mal_irqs[1] = pic[19];
2971 mal_irqs[2] = pic[18];
2972 mal_irqs[3] = pic[17];
2973 ppc405_mal_init(env, mal_irqs);
2974 /* Ethernet */
2975 /* Uses pic[22], pic[16], pic[14] */
2976 /* CPU control */
2977 ppc405ep_cpc_init(env, clk_setup, sysclk);
2978 *offsetp = offset;
2979
2980 return env;
2981 }
Stable branch of Qemu 0.9.1