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Merge remote-tracking branch 'qemu/master'
[qemu/ar7.git] / hw / ppc / ppc405_uc.c
blob8e58065f5fc2d669c561833dcbff06858e904145
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 "qemu/osdep.h"
25 #include "qapi/error.h"
26 #include "qemu-common.h"
27 #include "cpu.h"
28 #include "hw/hw.h"
29 #include "hw/ppc/ppc.h"
30 #include "hw/boards.h"
31 #include "hw/i2c/ppc4xx_i2c.h"
32 #include "ppc405.h"
33 #include "hw/char/serial.h"
34 #include "qemu/timer.h"
35 #include "sysemu/sysemu.h"
36 #include "qemu/log.h"
37 #include "exec/address-spaces.h"
38
39 //#define DEBUG_OPBA
40 //#define DEBUG_SDRAM
41 //#define DEBUG_GPIO
42 //#define DEBUG_SERIAL
43 //#define DEBUG_OCM
44 //#define DEBUG_GPT
45 //#define DEBUG_CLOCKS
46 //#define DEBUG_CLOCKS_LL
47
48 ram_addr_t ppc405_set_bootinfo (CPUPPCState *env, ppc4xx_bd_info_t *bd,
49 uint32_t flags)
50 {
51 CPUState *cs = CPU(ppc_env_get_cpu(env));
52 ram_addr_t bdloc;
53 int i, n;
54
55 /* We put the bd structure at the top of memory */
56 if (bd->bi_memsize >= 0x01000000UL)
57 bdloc = 0x01000000UL - sizeof(struct ppc4xx_bd_info_t);
58 else
59 bdloc = bd->bi_memsize - sizeof(struct ppc4xx_bd_info_t);
60 stl_be_phys(cs->as, bdloc + 0x00, bd->bi_memstart);
61 stl_be_phys(cs->as, bdloc + 0x04, bd->bi_memsize);
62 stl_be_phys(cs->as, bdloc + 0x08, bd->bi_flashstart);
63 stl_be_phys(cs->as, bdloc + 0x0C, bd->bi_flashsize);
64 stl_be_phys(cs->as, bdloc + 0x10, bd->bi_flashoffset);
65 stl_be_phys(cs->as, bdloc + 0x14, bd->bi_sramstart);
66 stl_be_phys(cs->as, bdloc + 0x18, bd->bi_sramsize);
67 stl_be_phys(cs->as, bdloc + 0x1C, bd->bi_bootflags);
68 stl_be_phys(cs->as, bdloc + 0x20, bd->bi_ipaddr);
69 for (i = 0; i < 6; i++) {
70 stb_phys(cs->as, bdloc + 0x24 + i, bd->bi_enetaddr[i]);
71 }
72 stw_be_phys(cs->as, bdloc + 0x2A, bd->bi_ethspeed);
73 stl_be_phys(cs->as, bdloc + 0x2C, bd->bi_intfreq);
74 stl_be_phys(cs->as, bdloc + 0x30, bd->bi_busfreq);
75 stl_be_phys(cs->as, bdloc + 0x34, bd->bi_baudrate);
76 for (i = 0; i < 4; i++) {
77 stb_phys(cs->as, bdloc + 0x38 + i, bd->bi_s_version[i]);
78 }
79 for (i = 0; i < 32; i++) {
80 stb_phys(cs->as, bdloc + 0x3C + i, bd->bi_r_version[i]);
81 }
82 stl_be_phys(cs->as, bdloc + 0x5C, bd->bi_plb_busfreq);
83 stl_be_phys(cs->as, bdloc + 0x60, bd->bi_pci_busfreq);
84 for (i = 0; i < 6; i++) {
85 stb_phys(cs->as, bdloc + 0x64 + i, bd->bi_pci_enetaddr[i]);
86 }
87 n = 0x6A;
88 if (flags & 0x00000001) {
89 for (i = 0; i < 6; i++)
90 stb_phys(cs->as, bdloc + n++, bd->bi_pci_enetaddr2[i]);
91 }
92 stl_be_phys(cs->as, bdloc + n, bd->bi_opbfreq);
93 n += 4;
94 for (i = 0; i < 2; i++) {
95 stl_be_phys(cs->as, bdloc + n, bd->bi_iic_fast[i]);
96 n += 4;
97 }
98
99 return bdloc;
100 }
101
102 /*****************************************************************************/
103 /* Shared peripherals */
104
105 /*****************************************************************************/
106 /* Peripheral local bus arbitrer */
107 enum {
108 PLB3A0_ACR = 0x077,
109 PLB4A0_ACR = 0x081,
110 PLB0_BESR = 0x084,
111 PLB0_BEAR = 0x086,
112 PLB0_ACR = 0x087,
113 PLB4A1_ACR = 0x089,
114 };
115
116 typedef struct ppc4xx_plb_t ppc4xx_plb_t;
117 struct ppc4xx_plb_t {
118 uint32_t acr;
119 uint32_t bear;
120 uint32_t besr;
121 };
122
123 static uint32_t dcr_read_plb (void *opaque, int dcrn)
124 {
125 ppc4xx_plb_t *plb;
126 uint32_t ret;
127
128 plb = opaque;
129 switch (dcrn) {
130 case PLB0_ACR:
131 ret = plb->acr;
132 break;
133 case PLB0_BEAR:
134 ret = plb->bear;
135 break;
136 case PLB0_BESR:
137 ret = plb->besr;
138 break;
139 default:
140 /* Avoid gcc warning */
141 ret = 0;
142 break;
143 }
144
145 return ret;
146 }
147
148 static void dcr_write_plb (void *opaque, int dcrn, uint32_t val)
149 {
150 ppc4xx_plb_t *plb;
151
152 plb = opaque;
153 switch (dcrn) {
154 case PLB0_ACR:
155 /* We don't care about the actual parameters written as
156 * we don't manage any priorities on the bus
157 */
158 plb->acr = val & 0xF8000000;
159 break;
160 case PLB0_BEAR:
161 /* Read only */
162 break;
163 case PLB0_BESR:
164 /* Write-clear */
165 plb->besr &= ~val;
166 break;
167 }
168 }
169
170 static void ppc4xx_plb_reset (void *opaque)
171 {
172 ppc4xx_plb_t *plb;
173
174 plb = opaque;
175 plb->acr = 0x00000000;
176 plb->bear = 0x00000000;
177 plb->besr = 0x00000000;
178 }
179
180 void ppc4xx_plb_init(CPUPPCState *env)
181 {
182 ppc4xx_plb_t *plb;
183
184 plb = g_malloc0(sizeof(ppc4xx_plb_t));
185 ppc_dcr_register(env, PLB3A0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
186 ppc_dcr_register(env, PLB4A0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
187 ppc_dcr_register(env, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
188 ppc_dcr_register(env, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb);
189 ppc_dcr_register(env, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb);
190 ppc_dcr_register(env, PLB4A1_ACR, plb, &dcr_read_plb, &dcr_write_plb);
191 qemu_register_reset(ppc4xx_plb_reset, plb);
192 }
193
194 /*****************************************************************************/
195 /* PLB to OPB bridge */
196 enum {
197 POB0_BESR0 = 0x0A0,
198 POB0_BESR1 = 0x0A2,
199 POB0_BEAR = 0x0A4,
200 };
201
202 typedef struct ppc4xx_pob_t ppc4xx_pob_t;
203 struct ppc4xx_pob_t {
204 uint32_t bear;
205 uint32_t besr0;
206 uint32_t besr1;
207 };
208
209 static uint32_t dcr_read_pob (void *opaque, int dcrn)
210 {
211 ppc4xx_pob_t *pob;
212 uint32_t ret;
213
214 pob = opaque;
215 switch (dcrn) {
216 case POB0_BEAR:
217 ret = pob->bear;
218 break;
219 case POB0_BESR0:
220 ret = pob->besr0;
221 break;
222 case POB0_BESR1:
223 ret = pob->besr1;
224 break;
225 default:
226 /* Avoid gcc warning */
227 ret = 0;
228 break;
229 }
230
231 return ret;
232 }
233
234 static void dcr_write_pob (void *opaque, int dcrn, uint32_t val)
235 {
236 ppc4xx_pob_t *pob;
237
238 pob = opaque;
239 switch (dcrn) {
240 case POB0_BEAR:
241 /* Read only */
242 break;
243 case POB0_BESR0:
244 /* Write-clear */
245 pob->besr0 &= ~val;
246 break;
247 case POB0_BESR1:
248 /* Write-clear */
249 pob->besr1 &= ~val;
250 break;
251 }
252 }
253
254 static void ppc4xx_pob_reset (void *opaque)
255 {
256 ppc4xx_pob_t *pob;
257
258 pob = opaque;
259 /* No error */
260 pob->bear = 0x00000000;
261 pob->besr0 = 0x0000000;
262 pob->besr1 = 0x0000000;
263 }
264
265 static void ppc4xx_pob_init(CPUPPCState *env)
266 {
267 ppc4xx_pob_t *pob;
268
269 pob = g_malloc0(sizeof(ppc4xx_pob_t));
270 ppc_dcr_register(env, POB0_BEAR, pob, &dcr_read_pob, &dcr_write_pob);
271 ppc_dcr_register(env, POB0_BESR0, pob, &dcr_read_pob, &dcr_write_pob);
272 ppc_dcr_register(env, POB0_BESR1, pob, &dcr_read_pob, &dcr_write_pob);
273 qemu_register_reset(ppc4xx_pob_reset, pob);
274 }
275
276 /*****************************************************************************/
277 /* OPB arbitrer */
278 typedef struct ppc4xx_opba_t ppc4xx_opba_t;
279 struct ppc4xx_opba_t {
280 MemoryRegion io;
281 uint8_t cr;
282 uint8_t pr;
283 };
284
285 static uint32_t opba_readb (void *opaque, hwaddr addr)
286 {
287 ppc4xx_opba_t *opba;
288 uint32_t ret;
289
290 #ifdef DEBUG_OPBA
291 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
292 #endif
293 opba = opaque;
294 switch (addr) {
295 case 0x00:
296 ret = opba->cr;
297 break;
298 case 0x01:
299 ret = opba->pr;
300 break;
301 default:
302 ret = 0x00;
303 break;
304 }
305
306 return ret;
307 }
308
309 static void opba_writeb (void *opaque,
310 hwaddr addr, uint32_t value)
311 {
312 ppc4xx_opba_t *opba;
313
314 #ifdef DEBUG_OPBA
315 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
316 value);
317 #endif
318 opba = opaque;
319 switch (addr) {
320 case 0x00:
321 opba->cr = value & 0xF8;
322 break;
323 case 0x01:
324 opba->pr = value & 0xFF;
325 break;
326 default:
327 break;
328 }
329 }
330
331 static uint32_t opba_readw (void *opaque, hwaddr addr)
332 {
333 uint32_t ret;
334
335 #ifdef DEBUG_OPBA
336 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
337 #endif
338 ret = opba_readb(opaque, addr) << 8;
339 ret |= opba_readb(opaque, addr + 1);
340
341 return ret;
342 }
343
344 static void opba_writew (void *opaque,
345 hwaddr addr, uint32_t value)
346 {
347 #ifdef DEBUG_OPBA
348 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
349 value);
350 #endif
351 opba_writeb(opaque, addr, value >> 8);
352 opba_writeb(opaque, addr + 1, value);
353 }
354
355 static uint32_t opba_readl (void *opaque, hwaddr addr)
356 {
357 uint32_t ret;
358
359 #ifdef DEBUG_OPBA
360 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
361 #endif
362 ret = opba_readb(opaque, addr) << 24;
363 ret |= opba_readb(opaque, addr + 1) << 16;
364
365 return ret;
366 }
367
368 static void opba_writel (void *opaque,
369 hwaddr addr, uint32_t value)
370 {
371 #ifdef DEBUG_OPBA
372 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
373 value);
374 #endif
375 opba_writeb(opaque, addr, value >> 24);
376 opba_writeb(opaque, addr + 1, value >> 16);
377 }
378
379 static const MemoryRegionOps opba_ops = {
380 .old_mmio = {
381 .read = { opba_readb, opba_readw, opba_readl, },
382 .write = { opba_writeb, opba_writew, opba_writel, },
383 },
384 .endianness = DEVICE_NATIVE_ENDIAN,
385 };
386
387 static void ppc4xx_opba_reset (void *opaque)
388 {
389 ppc4xx_opba_t *opba;
390
391 opba = opaque;
392 opba->cr = 0x00; /* No dynamic priorities - park disabled */
393 opba->pr = 0x11;
394 }
395
396 static void ppc4xx_opba_init(hwaddr base)
397 {
398 ppc4xx_opba_t *opba;
399
400 opba = g_malloc0(sizeof(ppc4xx_opba_t));
401 #ifdef DEBUG_OPBA
402 printf("%s: offset " TARGET_FMT_plx "\n", __func__, base);
403 #endif
404 memory_region_init_io(&opba->io, NULL, &opba_ops, opba, "opba", 0x002);
405 memory_region_add_subregion(get_system_memory(), base, &opba->io);
406 qemu_register_reset(ppc4xx_opba_reset, opba);
407 }
408
409 /*****************************************************************************/
410 /* Code decompression controller */
411 /* XXX: TODO */
412
413 /*****************************************************************************/
414 /* Peripheral controller */
415 typedef struct ppc4xx_ebc_t ppc4xx_ebc_t;
416 struct ppc4xx_ebc_t {
417 uint32_t addr;
418 uint32_t bcr[8];
419 uint32_t bap[8];
420 uint32_t bear;
421 uint32_t besr0;
422 uint32_t besr1;
423 uint32_t cfg;
424 };
425
426 enum {
427 EBC0_CFGADDR = 0x012,
428 EBC0_CFGDATA = 0x013,
429 };
430
431 static uint32_t dcr_read_ebc (void *opaque, int dcrn)
432 {
433 ppc4xx_ebc_t *ebc;
434 uint32_t ret;
435
436 ebc = opaque;
437 switch (dcrn) {
438 case EBC0_CFGADDR:
439 ret = ebc->addr;
440 break;
441 case EBC0_CFGDATA:
442 switch (ebc->addr) {
443 case 0x00: /* B0CR */
444 ret = ebc->bcr[0];
445 break;
446 case 0x01: /* B1CR */
447 ret = ebc->bcr[1];
448 break;
449 case 0x02: /* B2CR */
450 ret = ebc->bcr[2];
451 break;
452 case 0x03: /* B3CR */
453 ret = ebc->bcr[3];
454 break;
455 case 0x04: /* B4CR */
456 ret = ebc->bcr[4];
457 break;
458 case 0x05: /* B5CR */
459 ret = ebc->bcr[5];
460 break;
461 case 0x06: /* B6CR */
462 ret = ebc->bcr[6];
463 break;
464 case 0x07: /* B7CR */
465 ret = ebc->bcr[7];
466 break;
467 case 0x10: /* B0AP */
468 ret = ebc->bap[0];
469 break;
470 case 0x11: /* B1AP */
471 ret = ebc->bap[1];
472 break;
473 case 0x12: /* B2AP */
474 ret = ebc->bap[2];
475 break;
476 case 0x13: /* B3AP */
477 ret = ebc->bap[3];
478 break;
479 case 0x14: /* B4AP */
480 ret = ebc->bap[4];
481 break;
482 case 0x15: /* B5AP */
483 ret = ebc->bap[5];
484 break;
485 case 0x16: /* B6AP */
486 ret = ebc->bap[6];
487 break;
488 case 0x17: /* B7AP */
489 ret = ebc->bap[7];
490 break;
491 case 0x20: /* BEAR */
492 ret = ebc->bear;
493 break;
494 case 0x21: /* BESR0 */
495 ret = ebc->besr0;
496 break;
497 case 0x22: /* BESR1 */
498 ret = ebc->besr1;
499 break;
500 case 0x23: /* CFG */
501 ret = ebc->cfg;
502 break;
503 default:
504 ret = 0x00000000;
505 break;
506 }
507 break;
508 default:
509 ret = 0x00000000;
510 break;
511 }
512
513 return ret;
514 }
515
516 static void dcr_write_ebc (void *opaque, int dcrn, uint32_t val)
517 {
518 ppc4xx_ebc_t *ebc;
519
520 ebc = opaque;
521 switch (dcrn) {
522 case EBC0_CFGADDR:
523 ebc->addr = val;
524 break;
525 case EBC0_CFGDATA:
526 switch (ebc->addr) {
527 case 0x00: /* B0CR */
528 break;
529 case 0x01: /* B1CR */
530 break;
531 case 0x02: /* B2CR */
532 break;
533 case 0x03: /* B3CR */
534 break;
535 case 0x04: /* B4CR */
536 break;
537 case 0x05: /* B5CR */
538 break;
539 case 0x06: /* B6CR */
540 break;
541 case 0x07: /* B7CR */
542 break;
543 case 0x10: /* B0AP */
544 break;
545 case 0x11: /* B1AP */
546 break;
547 case 0x12: /* B2AP */
548 break;
549 case 0x13: /* B3AP */
550 break;
551 case 0x14: /* B4AP */
552 break;
553 case 0x15: /* B5AP */
554 break;
555 case 0x16: /* B6AP */
556 break;
557 case 0x17: /* B7AP */
558 break;
559 case 0x20: /* BEAR */
560 break;
561 case 0x21: /* BESR0 */
562 break;
563 case 0x22: /* BESR1 */
564 break;
565 case 0x23: /* CFG */
566 break;
567 default:
568 break;
569 }
570 break;
571 default:
572 break;
573 }
574 }
575
576 static void ebc_reset (void *opaque)
577 {
578 ppc4xx_ebc_t *ebc;
579 int i;
580
581 ebc = opaque;
582 ebc->addr = 0x00000000;
583 ebc->bap[0] = 0x7F8FFE80;
584 ebc->bcr[0] = 0xFFE28000;
585 for (i = 0; i < 8; i++) {
586 ebc->bap[i] = 0x00000000;
587 ebc->bcr[i] = 0x00000000;
588 }
589 ebc->besr0 = 0x00000000;
590 ebc->besr1 = 0x00000000;
591 ebc->cfg = 0x80400000;
592 }
593
594 void ppc405_ebc_init(CPUPPCState *env)
595 {
596 ppc4xx_ebc_t *ebc;
597
598 ebc = g_malloc0(sizeof(ppc4xx_ebc_t));
599 qemu_register_reset(&ebc_reset, ebc);
600 ppc_dcr_register(env, EBC0_CFGADDR,
601 ebc, &dcr_read_ebc, &dcr_write_ebc);
602 ppc_dcr_register(env, EBC0_CFGDATA,
603 ebc, &dcr_read_ebc, &dcr_write_ebc);
604 }
605
606 /*****************************************************************************/
607 /* DMA controller */
608 enum {
609 DMA0_CR0 = 0x100,
610 DMA0_CT0 = 0x101,
611 DMA0_DA0 = 0x102,
612 DMA0_SA0 = 0x103,
613 DMA0_SG0 = 0x104,
614 DMA0_CR1 = 0x108,
615 DMA0_CT1 = 0x109,
616 DMA0_DA1 = 0x10A,
617 DMA0_SA1 = 0x10B,
618 DMA0_SG1 = 0x10C,
619 DMA0_CR2 = 0x110,
620 DMA0_CT2 = 0x111,
621 DMA0_DA2 = 0x112,
622 DMA0_SA2 = 0x113,
623 DMA0_SG2 = 0x114,
624 DMA0_CR3 = 0x118,
625 DMA0_CT3 = 0x119,
626 DMA0_DA3 = 0x11A,
627 DMA0_SA3 = 0x11B,
628 DMA0_SG3 = 0x11C,
629 DMA0_SR = 0x120,
630 DMA0_SGC = 0x123,
631 DMA0_SLP = 0x125,
632 DMA0_POL = 0x126,
633 };
634
635 typedef struct ppc405_dma_t ppc405_dma_t;
636 struct ppc405_dma_t {
637 qemu_irq irqs[4];
638 uint32_t cr[4];
639 uint32_t ct[4];
640 uint32_t da[4];
641 uint32_t sa[4];
642 uint32_t sg[4];
643 uint32_t sr;
644 uint32_t sgc;
645 uint32_t slp;
646 uint32_t pol;
647 };
648
649 static uint32_t dcr_read_dma (void *opaque, int dcrn)
650 {
651 return 0;
652 }
653
654 static void dcr_write_dma (void *opaque, int dcrn, uint32_t val)
655 {
656 }
657
658 static void ppc405_dma_reset (void *opaque)
659 {
660 ppc405_dma_t *dma;
661 int i;
662
663 dma = opaque;
664 for (i = 0; i < 4; i++) {
665 dma->cr[i] = 0x00000000;
666 dma->ct[i] = 0x00000000;
667 dma->da[i] = 0x00000000;
668 dma->sa[i] = 0x00000000;
669 dma->sg[i] = 0x00000000;
670 }
671 dma->sr = 0x00000000;
672 dma->sgc = 0x00000000;
673 dma->slp = 0x7C000000;
674 dma->pol = 0x00000000;
675 }
676
677 static void ppc405_dma_init(CPUPPCState *env, qemu_irq irqs[4])
678 {
679 ppc405_dma_t *dma;
680
681 dma = g_malloc0(sizeof(ppc405_dma_t));
682 memcpy(dma->irqs, irqs, 4 * sizeof(qemu_irq));
683 qemu_register_reset(&ppc405_dma_reset, dma);
684 ppc_dcr_register(env, DMA0_CR0,
685 dma, &dcr_read_dma, &dcr_write_dma);
686 ppc_dcr_register(env, DMA0_CT0,
687 dma, &dcr_read_dma, &dcr_write_dma);
688 ppc_dcr_register(env, DMA0_DA0,
689 dma, &dcr_read_dma, &dcr_write_dma);
690 ppc_dcr_register(env, DMA0_SA0,
691 dma, &dcr_read_dma, &dcr_write_dma);
692 ppc_dcr_register(env, DMA0_SG0,
693 dma, &dcr_read_dma, &dcr_write_dma);
694 ppc_dcr_register(env, DMA0_CR1,
695 dma, &dcr_read_dma, &dcr_write_dma);
696 ppc_dcr_register(env, DMA0_CT1,
697 dma, &dcr_read_dma, &dcr_write_dma);
698 ppc_dcr_register(env, DMA0_DA1,
699 dma, &dcr_read_dma, &dcr_write_dma);
700 ppc_dcr_register(env, DMA0_SA1,
701 dma, &dcr_read_dma, &dcr_write_dma);
702 ppc_dcr_register(env, DMA0_SG1,
703 dma, &dcr_read_dma, &dcr_write_dma);
704 ppc_dcr_register(env, DMA0_CR2,
705 dma, &dcr_read_dma, &dcr_write_dma);
706 ppc_dcr_register(env, DMA0_CT2,
707 dma, &dcr_read_dma, &dcr_write_dma);
708 ppc_dcr_register(env, DMA0_DA2,
709 dma, &dcr_read_dma, &dcr_write_dma);
710 ppc_dcr_register(env, DMA0_SA2,
711 dma, &dcr_read_dma, &dcr_write_dma);
712 ppc_dcr_register(env, DMA0_SG2,
713 dma, &dcr_read_dma, &dcr_write_dma);
714 ppc_dcr_register(env, DMA0_CR3,
715 dma, &dcr_read_dma, &dcr_write_dma);
716 ppc_dcr_register(env, DMA0_CT3,
717 dma, &dcr_read_dma, &dcr_write_dma);
718 ppc_dcr_register(env, DMA0_DA3,
719 dma, &dcr_read_dma, &dcr_write_dma);
720 ppc_dcr_register(env, DMA0_SA3,
721 dma, &dcr_read_dma, &dcr_write_dma);
722 ppc_dcr_register(env, DMA0_SG3,
723 dma, &dcr_read_dma, &dcr_write_dma);
724 ppc_dcr_register(env, DMA0_SR,
725 dma, &dcr_read_dma, &dcr_write_dma);
726 ppc_dcr_register(env, DMA0_SGC,
727 dma, &dcr_read_dma, &dcr_write_dma);
728 ppc_dcr_register(env, DMA0_SLP,
729 dma, &dcr_read_dma, &dcr_write_dma);
730 ppc_dcr_register(env, DMA0_POL,
731 dma, &dcr_read_dma, &dcr_write_dma);
732 }
733
734 /*****************************************************************************/
735 /* GPIO */
736 typedef struct ppc405_gpio_t ppc405_gpio_t;
737 struct ppc405_gpio_t {
738 MemoryRegion io;
739 uint32_t or;
740 uint32_t tcr;
741 uint32_t osrh;
742 uint32_t osrl;
743 uint32_t tsrh;
744 uint32_t tsrl;
745 uint32_t odr;
746 uint32_t ir;
747 uint32_t rr1;
748 uint32_t isr1h;
749 uint32_t isr1l;
750 };
751
752 static uint32_t ppc405_gpio_readb (void *opaque, hwaddr addr)
753 {
754 #ifdef DEBUG_GPIO
755 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
756 #endif
757
758 return 0;
759 }
760
761 static void ppc405_gpio_writeb (void *opaque,
762 hwaddr addr, uint32_t value)
763 {
764 #ifdef DEBUG_GPIO
765 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
766 value);
767 #endif
768 }
769
770 static uint32_t ppc405_gpio_readw (void *opaque, hwaddr addr)
771 {
772 #ifdef DEBUG_GPIO
773 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
774 #endif
775
776 return 0;
777 }
778
779 static void ppc405_gpio_writew (void *opaque,
780 hwaddr addr, uint32_t value)
781 {
782 #ifdef DEBUG_GPIO
783 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
784 value);
785 #endif
786 }
787
788 static uint32_t ppc405_gpio_readl (void *opaque, hwaddr addr)
789 {
790 #ifdef DEBUG_GPIO
791 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
792 #endif
793
794 return 0;
795 }
796
797 static void ppc405_gpio_writel (void *opaque,
798 hwaddr addr, uint32_t value)
799 {
800 #ifdef DEBUG_GPIO
801 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
802 value);
803 #endif
804 }
805
806 static const MemoryRegionOps ppc405_gpio_ops = {
807 .old_mmio = {
808 .read = { ppc405_gpio_readb, ppc405_gpio_readw, ppc405_gpio_readl, },
809 .write = { ppc405_gpio_writeb, ppc405_gpio_writew, ppc405_gpio_writel, },
810 },
811 .endianness = DEVICE_NATIVE_ENDIAN,
812 };
813
814 static void ppc405_gpio_reset (void *opaque)
815 {
816 }
817
818 static void ppc405_gpio_init(hwaddr base)
819 {
820 ppc405_gpio_t *gpio;
821
822 gpio = g_malloc0(sizeof(ppc405_gpio_t));
823 #ifdef DEBUG_GPIO
824 printf("%s: offset " TARGET_FMT_plx "\n", __func__, base);
825 #endif
826 memory_region_init_io(&gpio->io, NULL, &ppc405_gpio_ops, gpio, "pgio", 0x038);
827 memory_region_add_subregion(get_system_memory(), base, &gpio->io);
828 qemu_register_reset(&ppc405_gpio_reset, gpio);
829 }
830
831 /*****************************************************************************/
832 /* On Chip Memory */
833 enum {
834 OCM0_ISARC = 0x018,
835 OCM0_ISACNTL = 0x019,
836 OCM0_DSARC = 0x01A,
837 OCM0_DSACNTL = 0x01B,
838 };
839
840 typedef struct ppc405_ocm_t ppc405_ocm_t;
841 struct ppc405_ocm_t {
842 MemoryRegion ram;
843 MemoryRegion isarc_ram;
844 MemoryRegion dsarc_ram;
845 uint32_t isarc;
846 uint32_t isacntl;
847 uint32_t dsarc;
848 uint32_t dsacntl;
849 };
850
851 static void ocm_update_mappings (ppc405_ocm_t *ocm,
852 uint32_t isarc, uint32_t isacntl,
853 uint32_t dsarc, uint32_t dsacntl)
854 {
855 #ifdef DEBUG_OCM
856 printf("OCM update ISA %08" PRIx32 " %08" PRIx32 " (%08" PRIx32
857 " %08" PRIx32 ") DSA %08" PRIx32 " %08" PRIx32
858 " (%08" PRIx32 " %08" PRIx32 ")\n",
859 isarc, isacntl, dsarc, dsacntl,
860 ocm->isarc, ocm->isacntl, ocm->dsarc, ocm->dsacntl);
861 #endif
862 if (ocm->isarc != isarc ||
863 (ocm->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
864 if (ocm->isacntl & 0x80000000) {
865 /* Unmap previously assigned memory region */
866 printf("OCM unmap ISA %08" PRIx32 "\n", ocm->isarc);
867 memory_region_del_subregion(get_system_memory(), &ocm->isarc_ram);
868 }
869 if (isacntl & 0x80000000) {
870 /* Map new instruction memory region */
871 #ifdef DEBUG_OCM
872 printf("OCM map ISA %08" PRIx32 "\n", isarc);
873 #endif
874 memory_region_add_subregion(get_system_memory(), isarc,
875 &ocm->isarc_ram);
876 }
877 }
878 if (ocm->dsarc != dsarc ||
879 (ocm->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
880 if (ocm->dsacntl & 0x80000000) {
881 /* Beware not to unmap the region we just mapped */
882 if (!(isacntl & 0x80000000) || ocm->dsarc != isarc) {
883 /* Unmap previously assigned memory region */
884 #ifdef DEBUG_OCM
885 printf("OCM unmap DSA %08" PRIx32 "\n", ocm->dsarc);
886 #endif
887 memory_region_del_subregion(get_system_memory(),
888 &ocm->dsarc_ram);
889 }
890 }
891 if (dsacntl & 0x80000000) {
892 /* Beware not to remap the region we just mapped */
893 if (!(isacntl & 0x80000000) || dsarc != isarc) {
894 /* Map new data memory region */
895 #ifdef DEBUG_OCM
896 printf("OCM map DSA %08" PRIx32 "\n", dsarc);
897 #endif
898 memory_region_add_subregion(get_system_memory(), dsarc,
899 &ocm->dsarc_ram);
900 }
901 }
902 }
903 }
904
905 static uint32_t dcr_read_ocm (void *opaque, int dcrn)
906 {
907 ppc405_ocm_t *ocm;
908 uint32_t ret;
909
910 ocm = opaque;
911 switch (dcrn) {
912 case OCM0_ISARC:
913 ret = ocm->isarc;
914 break;
915 case OCM0_ISACNTL:
916 ret = ocm->isacntl;
917 break;
918 case OCM0_DSARC:
919 ret = ocm->dsarc;
920 break;
921 case OCM0_DSACNTL:
922 ret = ocm->dsacntl;
923 break;
924 default:
925 ret = 0;
926 break;
927 }
928
929 return ret;
930 }
931
932 static void dcr_write_ocm (void *opaque, int dcrn, uint32_t val)
933 {
934 ppc405_ocm_t *ocm;
935 uint32_t isarc, dsarc, isacntl, dsacntl;
936
937 ocm = opaque;
938 isarc = ocm->isarc;
939 dsarc = ocm->dsarc;
940 isacntl = ocm->isacntl;
941 dsacntl = ocm->dsacntl;
942 switch (dcrn) {
943 case OCM0_ISARC:
944 isarc = val & 0xFC000000;
945 break;
946 case OCM0_ISACNTL:
947 isacntl = val & 0xC0000000;
948 break;
949 case OCM0_DSARC:
950 isarc = val & 0xFC000000;
951 break;
952 case OCM0_DSACNTL:
953 isacntl = val & 0xC0000000;
954 break;
955 }
956 ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
957 ocm->isarc = isarc;
958 ocm->dsarc = dsarc;
959 ocm->isacntl = isacntl;
960 ocm->dsacntl = dsacntl;
961 }
962
963 static void ocm_reset (void *opaque)
964 {
965 ppc405_ocm_t *ocm;
966 uint32_t isarc, dsarc, isacntl, dsacntl;
967
968 ocm = opaque;
969 isarc = 0x00000000;
970 isacntl = 0x00000000;
971 dsarc = 0x00000000;
972 dsacntl = 0x00000000;
973 ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
974 ocm->isarc = isarc;
975 ocm->dsarc = dsarc;
976 ocm->isacntl = isacntl;
977 ocm->dsacntl = dsacntl;
978 }
979
980 static void ppc405_ocm_init(CPUPPCState *env)
981 {
982 ppc405_ocm_t *ocm;
983
984 ocm = g_malloc0(sizeof(ppc405_ocm_t));
985 /* XXX: Size is 4096 or 0x04000000 */
986 memory_region_init_ram(&ocm->isarc_ram, NULL, "ppc405.ocm", 4096,
987 &error_fatal);
988 memory_region_init_alias(&ocm->dsarc_ram, NULL, "ppc405.dsarc", &ocm->isarc_ram,
989 0, 4096);
990 qemu_register_reset(&ocm_reset, ocm);
991 ppc_dcr_register(env, OCM0_ISARC,
992 ocm, &dcr_read_ocm, &dcr_write_ocm);
993 ppc_dcr_register(env, OCM0_ISACNTL,
994 ocm, &dcr_read_ocm, &dcr_write_ocm);
995 ppc_dcr_register(env, OCM0_DSARC,
996 ocm, &dcr_read_ocm, &dcr_write_ocm);
997 ppc_dcr_register(env, OCM0_DSACNTL,
998 ocm, &dcr_read_ocm, &dcr_write_ocm);
999 }
1000
1001 /*****************************************************************************/
1002 /* General purpose timers */
1003 typedef struct ppc4xx_gpt_t ppc4xx_gpt_t;
1004 struct ppc4xx_gpt_t {
1005 MemoryRegion iomem;
1006 int64_t tb_offset;
1007 uint32_t tb_freq;
1008 QEMUTimer *timer;
1009 qemu_irq irqs[5];
1010 uint32_t oe;
1011 uint32_t ol;
1012 uint32_t im;
1013 uint32_t is;
1014 uint32_t ie;
1015 uint32_t comp[5];
1016 uint32_t mask[5];
1017 };
1018
1019 static uint32_t ppc4xx_gpt_readb (void *opaque, hwaddr addr)
1020 {
1021 #ifdef DEBUG_GPT
1022 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
1023 #endif
1024 /* XXX: generate a bus fault */
1025 return -1;
1026 }
1027
1028 static void ppc4xx_gpt_writeb (void *opaque,
1029 hwaddr addr, uint32_t value)
1030 {
1031 #ifdef DEBUG_I2C
1032 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
1033 value);
1034 #endif
1035 /* XXX: generate a bus fault */
1036 }
1037
1038 static uint32_t ppc4xx_gpt_readw (void *opaque, hwaddr addr)
1039 {
1040 #ifdef DEBUG_GPT
1041 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
1042 #endif
1043 /* XXX: generate a bus fault */
1044 return -1;
1045 }
1046
1047 static void ppc4xx_gpt_writew (void *opaque,
1048 hwaddr addr, uint32_t value)
1049 {
1050 #ifdef DEBUG_I2C
1051 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
1052 value);
1053 #endif
1054 /* XXX: generate a bus fault */
1055 }
1056
1057 static int ppc4xx_gpt_compare (ppc4xx_gpt_t *gpt, int n)
1058 {
1059 /* XXX: TODO */
1060 return 0;
1061 }
1062
1063 static void ppc4xx_gpt_set_output (ppc4xx_gpt_t *gpt, int n, int level)
1064 {
1065 /* XXX: TODO */
1066 }
1067
1068 static void ppc4xx_gpt_set_outputs (ppc4xx_gpt_t *gpt)
1069 {
1070 uint32_t mask;
1071 int i;
1072
1073 mask = 0x80000000;
1074 for (i = 0; i < 5; i++) {
1075 if (gpt->oe & mask) {
1076 /* Output is enabled */
1077 if (ppc4xx_gpt_compare(gpt, i)) {
1078 /* Comparison is OK */
1079 ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask);
1080 } else {
1081 /* Comparison is KO */
1082 ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask ? 0 : 1);
1083 }
1084 }
1085 mask = mask >> 1;
1086 }
1087 }
1088
1089 static void ppc4xx_gpt_set_irqs (ppc4xx_gpt_t *gpt)
1090 {
1091 uint32_t mask;
1092 int i;
1093
1094 mask = 0x00008000;
1095 for (i = 0; i < 5; i++) {
1096 if (gpt->is & gpt->im & mask)
1097 qemu_irq_raise(gpt->irqs[i]);
1098 else
1099 qemu_irq_lower(gpt->irqs[i]);
1100 mask = mask >> 1;
1101 }
1102 }
1103
1104 static void ppc4xx_gpt_compute_timer (ppc4xx_gpt_t *gpt)
1105 {
1106 /* XXX: TODO */
1107 }
1108
1109 static uint32_t ppc4xx_gpt_readl (void *opaque, hwaddr addr)
1110 {
1111 ppc4xx_gpt_t *gpt;
1112 uint32_t ret;
1113 int idx;
1114
1115 #ifdef DEBUG_GPT
1116 printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr);
1117 #endif
1118 gpt = opaque;
1119 switch (addr) {
1120 case 0x00:
1121 /* Time base counter */
1122 ret = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + gpt->tb_offset,
1123 gpt->tb_freq, NANOSECONDS_PER_SECOND);
1124 break;
1125 case 0x10:
1126 /* Output enable */
1127 ret = gpt->oe;
1128 break;
1129 case 0x14:
1130 /* Output level */
1131 ret = gpt->ol;
1132 break;
1133 case 0x18:
1134 /* Interrupt mask */
1135 ret = gpt->im;
1136 break;
1137 case 0x1C:
1138 case 0x20:
1139 /* Interrupt status */
1140 ret = gpt->is;
1141 break;
1142 case 0x24:
1143 /* Interrupt enable */
1144 ret = gpt->ie;
1145 break;
1146 case 0x80 ... 0x90:
1147 /* Compare timer */
1148 idx = (addr - 0x80) >> 2;
1149 ret = gpt->comp[idx];
1150 break;
1151 case 0xC0 ... 0xD0:
1152 /* Compare mask */
1153 idx = (addr - 0xC0) >> 2;
1154 ret = gpt->mask[idx];
1155 break;
1156 default:
1157 ret = -1;
1158 break;
1159 }
1160
1161 return ret;
1162 }
1163
1164 static void ppc4xx_gpt_writel (void *opaque,
1165 hwaddr addr, uint32_t value)
1166 {
1167 ppc4xx_gpt_t *gpt;
1168 int idx;
1169
1170 #ifdef DEBUG_I2C
1171 printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr,
1172 value);
1173 #endif
1174 gpt = opaque;
1175 switch (addr) {
1176 case 0x00:
1177 /* Time base counter */
1178 gpt->tb_offset = muldiv64(value, NANOSECONDS_PER_SECOND, gpt->tb_freq)
1179 - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1180 ppc4xx_gpt_compute_timer(gpt);
1181 break;
1182 case 0x10:
1183 /* Output enable */
1184 gpt->oe = value & 0xF8000000;
1185 ppc4xx_gpt_set_outputs(gpt);
1186 break;
1187 case 0x14:
1188 /* Output level */
1189 gpt->ol = value & 0xF8000000;
1190 ppc4xx_gpt_set_outputs(gpt);
1191 break;
1192 case 0x18:
1193 /* Interrupt mask */
1194 gpt->im = value & 0x0000F800;
1195 break;
1196 case 0x1C:
1197 /* Interrupt status set */
1198 gpt->is |= value & 0x0000F800;
1199 ppc4xx_gpt_set_irqs(gpt);
1200 break;
1201 case 0x20:
1202 /* Interrupt status clear */
1203 gpt->is &= ~(value & 0x0000F800);
1204 ppc4xx_gpt_set_irqs(gpt);
1205 break;
1206 case 0x24:
1207 /* Interrupt enable */
1208 gpt->ie = value & 0x0000F800;
1209 ppc4xx_gpt_set_irqs(gpt);
1210 break;
1211 case 0x80 ... 0x90:
1212 /* Compare timer */
1213 idx = (addr - 0x80) >> 2;
1214 gpt->comp[idx] = value & 0xF8000000;
1215 ppc4xx_gpt_compute_timer(gpt);
1216 break;
1217 case 0xC0 ... 0xD0:
1218 /* Compare mask */
1219 idx = (addr - 0xC0) >> 2;
1220 gpt->mask[idx] = value & 0xF8000000;
1221 ppc4xx_gpt_compute_timer(gpt);
1222 break;
1223 }
1224 }
1225
1226 static const MemoryRegionOps gpt_ops = {
1227 .old_mmio = {
1228 .read = { ppc4xx_gpt_readb, ppc4xx_gpt_readw, ppc4xx_gpt_readl, },
1229 .write = { ppc4xx_gpt_writeb, ppc4xx_gpt_writew, ppc4xx_gpt_writel, },
1230 },
1231 .endianness = DEVICE_NATIVE_ENDIAN,
1232 };
1233
1234 static void ppc4xx_gpt_cb (void *opaque)
1235 {
1236 ppc4xx_gpt_t *gpt;
1237
1238 gpt = opaque;
1239 ppc4xx_gpt_set_irqs(gpt);
1240 ppc4xx_gpt_set_outputs(gpt);
1241 ppc4xx_gpt_compute_timer(gpt);
1242 }
1243
1244 static void ppc4xx_gpt_reset (void *opaque)
1245 {
1246 ppc4xx_gpt_t *gpt;
1247 int i;
1248
1249 gpt = opaque;
1250 timer_del(gpt->timer);
1251 gpt->oe = 0x00000000;
1252 gpt->ol = 0x00000000;
1253 gpt->im = 0x00000000;
1254 gpt->is = 0x00000000;
1255 gpt->ie = 0x00000000;
1256 for (i = 0; i < 5; i++) {
1257 gpt->comp[i] = 0x00000000;
1258 gpt->mask[i] = 0x00000000;
1259 }
1260 }
1261
1262 static void ppc4xx_gpt_init(hwaddr base, qemu_irq irqs[5])
1263 {
1264 ppc4xx_gpt_t *gpt;
1265 int i;
1266
1267 gpt = g_malloc0(sizeof(ppc4xx_gpt_t));
1268 for (i = 0; i < 5; i++) {
1269 gpt->irqs[i] = irqs[i];
1270 }
1271 gpt->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &ppc4xx_gpt_cb, gpt);
1272 #ifdef DEBUG_GPT
1273 printf("%s: offset " TARGET_FMT_plx "\n", __func__, base);
1274 #endif
1275 memory_region_init_io(&gpt->iomem, NULL, &gpt_ops, gpt, "gpt", 0x0d4);
1276 memory_region_add_subregion(get_system_memory(), base, &gpt->iomem);
1277 qemu_register_reset(ppc4xx_gpt_reset, gpt);
1278 }
1279
1280 /*****************************************************************************/
1281 /* SPR */
1282 void ppc40x_core_reset(PowerPCCPU *cpu)
1283 {
1284 CPUPPCState *env = &cpu->env;
1285 target_ulong dbsr;
1286
1287 printf("Reset PowerPC core\n");
1288 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_RESET);
1289 dbsr = env->spr[SPR_40x_DBSR];
1290 dbsr &= ~0x00000300;
1291 dbsr |= 0x00000100;
1292 env->spr[SPR_40x_DBSR] = dbsr;
1293 }
1294
1295 void ppc40x_chip_reset(PowerPCCPU *cpu)
1296 {
1297 CPUPPCState *env = &cpu->env;
1298 target_ulong dbsr;
1299
1300 printf("Reset PowerPC chip\n");
1301 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_RESET);
1302 /* XXX: TODO reset all internal peripherals */
1303 dbsr = env->spr[SPR_40x_DBSR];
1304 dbsr &= ~0x00000300;
1305 dbsr |= 0x00000200;
1306 env->spr[SPR_40x_DBSR] = dbsr;
1307 }
1308
1309 void ppc40x_system_reset(PowerPCCPU *cpu)
1310 {
1311 printf("Reset PowerPC system\n");
1312 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
1313 }
1314
1315 void store_40x_dbcr0 (CPUPPCState *env, uint32_t val)
1316 {
1317 PowerPCCPU *cpu = ppc_env_get_cpu(env);
1318
1319 switch ((val >> 28) & 0x3) {
1320 case 0x0:
1321 /* No action */
1322 break;
1323 case 0x1:
1324 /* Core reset */
1325 ppc40x_core_reset(cpu);
1326 break;
1327 case 0x2:
1328 /* Chip reset */
1329 ppc40x_chip_reset(cpu);
1330 break;
1331 case 0x3:
1332 /* System reset */
1333 ppc40x_system_reset(cpu);
1334 break;
1335 }
1336 }
1337
1338 /*****************************************************************************/
1339 /* PowerPC 405CR */
1340 enum {
1341 PPC405CR_CPC0_PLLMR = 0x0B0,
1342 PPC405CR_CPC0_CR0 = 0x0B1,
1343 PPC405CR_CPC0_CR1 = 0x0B2,
1344 PPC405CR_CPC0_PSR = 0x0B4,
1345 PPC405CR_CPC0_JTAGID = 0x0B5,
1346 PPC405CR_CPC0_ER = 0x0B9,
1347 PPC405CR_CPC0_FR = 0x0BA,
1348 PPC405CR_CPC0_SR = 0x0BB,
1349 };
1350
1351 enum {
1352 PPC405CR_CPU_CLK = 0,
1353 PPC405CR_TMR_CLK = 1,
1354 PPC405CR_PLB_CLK = 2,
1355 PPC405CR_SDRAM_CLK = 3,
1356 PPC405CR_OPB_CLK = 4,
1357 PPC405CR_EXT_CLK = 5,
1358 PPC405CR_UART_CLK = 6,
1359 PPC405CR_CLK_NB = 7,
1360 };
1361
1362 typedef struct ppc405cr_cpc_t ppc405cr_cpc_t;
1363 struct ppc405cr_cpc_t {
1364 clk_setup_t clk_setup[PPC405CR_CLK_NB];
1365 uint32_t sysclk;
1366 uint32_t psr;
1367 uint32_t cr0;
1368 uint32_t cr1;
1369 uint32_t jtagid;
1370 uint32_t pllmr;
1371 uint32_t er;
1372 uint32_t fr;
1373 };
1374
1375 static void ppc405cr_clk_setup (ppc405cr_cpc_t *cpc)
1376 {
1377 uint64_t VCO_out, PLL_out;
1378 uint32_t CPU_clk, TMR_clk, SDRAM_clk, PLB_clk, OPB_clk, EXT_clk, UART_clk;
1379 int M, D0, D1, D2;
1380
1381 D0 = ((cpc->pllmr >> 26) & 0x3) + 1; /* CBDV */
1382 if (cpc->pllmr & 0x80000000) {
1383 D1 = (((cpc->pllmr >> 20) - 1) & 0xF) + 1; /* FBDV */
1384 D2 = 8 - ((cpc->pllmr >> 16) & 0x7); /* FWDVA */
1385 M = D0 * D1 * D2;
1386 VCO_out = (uint64_t)cpc->sysclk * M;
1387 if (VCO_out < 400000000 || VCO_out > 800000000) {
1388 /* PLL cannot lock */
1389 cpc->pllmr &= ~0x80000000;
1390 goto bypass_pll;
1391 }
1392 PLL_out = VCO_out / D2;
1393 } else {
1394 /* Bypass PLL */
1395 bypass_pll:
1396 M = D0;
1397 PLL_out = (uint64_t)cpc->sysclk * M;
1398 }
1399 CPU_clk = PLL_out;
1400 if (cpc->cr1 & 0x00800000)
1401 TMR_clk = cpc->sysclk; /* Should have a separate clock */
1402 else
1403 TMR_clk = CPU_clk;
1404 PLB_clk = CPU_clk / D0;
1405 SDRAM_clk = PLB_clk;
1406 D0 = ((cpc->pllmr >> 10) & 0x3) + 1;
1407 OPB_clk = PLB_clk / D0;
1408 D0 = ((cpc->pllmr >> 24) & 0x3) + 2;
1409 EXT_clk = PLB_clk / D0;
1410 D0 = ((cpc->cr0 >> 1) & 0x1F) + 1;
1411 UART_clk = CPU_clk / D0;
1412 /* Setup CPU clocks */
1413 clk_setup(&cpc->clk_setup[PPC405CR_CPU_CLK], CPU_clk);
1414 /* Setup time-base clock */
1415 clk_setup(&cpc->clk_setup[PPC405CR_TMR_CLK], TMR_clk);
1416 /* Setup PLB clock */
1417 clk_setup(&cpc->clk_setup[PPC405CR_PLB_CLK], PLB_clk);
1418 /* Setup SDRAM clock */
1419 clk_setup(&cpc->clk_setup[PPC405CR_SDRAM_CLK], SDRAM_clk);
1420 /* Setup OPB clock */
1421 clk_setup(&cpc->clk_setup[PPC405CR_OPB_CLK], OPB_clk);
1422 /* Setup external clock */
1423 clk_setup(&cpc->clk_setup[PPC405CR_EXT_CLK], EXT_clk);
1424 /* Setup UART clock */
1425 clk_setup(&cpc->clk_setup[PPC405CR_UART_CLK], UART_clk);
1426 }
1427
1428 static uint32_t dcr_read_crcpc (void *opaque, int dcrn)
1429 {
1430 ppc405cr_cpc_t *cpc;
1431 uint32_t ret;
1432
1433 cpc = opaque;
1434 switch (dcrn) {
1435 case PPC405CR_CPC0_PLLMR:
1436 ret = cpc->pllmr;
1437 break;
1438 case PPC405CR_CPC0_CR0:
1439 ret = cpc->cr0;
1440 break;
1441 case PPC405CR_CPC0_CR1:
1442 ret = cpc->cr1;
1443 break;
1444 case PPC405CR_CPC0_PSR:
1445 ret = cpc->psr;
1446 break;
1447 case PPC405CR_CPC0_JTAGID:
1448 ret = cpc->jtagid;
1449 break;
1450 case PPC405CR_CPC0_ER:
1451 ret = cpc->er;
1452 break;
1453 case PPC405CR_CPC0_FR:
1454 ret = cpc->fr;
1455 break;
1456 case PPC405CR_CPC0_SR:
1457 ret = ~(cpc->er | cpc->fr) & 0xFFFF0000;
1458 break;
1459 default:
1460 /* Avoid gcc warning */
1461 ret = 0;
1462 break;
1463 }
1464
1465 return ret;
1466 }
1467
1468 static void dcr_write_crcpc (void *opaque, int dcrn, uint32_t val)
1469 {
1470 ppc405cr_cpc_t *cpc;
1471
1472 cpc = opaque;
1473 switch (dcrn) {
1474 case PPC405CR_CPC0_PLLMR:
1475 cpc->pllmr = val & 0xFFF77C3F;
1476 break;
1477 case PPC405CR_CPC0_CR0:
1478 cpc->cr0 = val & 0x0FFFFFFE;
1479 break;
1480 case PPC405CR_CPC0_CR1:
1481 cpc->cr1 = val & 0x00800000;
1482 break;
1483 case PPC405CR_CPC0_PSR:
1484 /* Read-only */
1485 break;
1486 case PPC405CR_CPC0_JTAGID:
1487 /* Read-only */
1488 break;
1489 case PPC405CR_CPC0_ER:
1490 cpc->er = val & 0xBFFC0000;
1491 break;
1492 case PPC405CR_CPC0_FR:
1493 cpc->fr = val & 0xBFFC0000;
1494 break;
1495 case PPC405CR_CPC0_SR:
1496 /* Read-only */
1497 break;
1498 }
1499 }
1500
1501 static void ppc405cr_cpc_reset (void *opaque)
1502 {
1503 ppc405cr_cpc_t *cpc;
1504 int D;
1505
1506 cpc = opaque;
1507 /* Compute PLLMR value from PSR settings */
1508 cpc->pllmr = 0x80000000;
1509 /* PFWD */
1510 switch ((cpc->psr >> 30) & 3) {
1511 case 0:
1512 /* Bypass */
1513 cpc->pllmr &= ~0x80000000;
1514 break;
1515 case 1:
1516 /* Divide by 3 */
1517 cpc->pllmr |= 5 << 16;
1518 break;
1519 case 2:
1520 /* Divide by 4 */
1521 cpc->pllmr |= 4 << 16;
1522 break;
1523 case 3:
1524 /* Divide by 6 */
1525 cpc->pllmr |= 2 << 16;
1526 break;
1527 }
1528 /* PFBD */
1529 D = (cpc->psr >> 28) & 3;
1530 cpc->pllmr |= (D + 1) << 20;
1531 /* PT */
1532 D = (cpc->psr >> 25) & 7;
1533 switch (D) {
1534 case 0x2:
1535 cpc->pllmr |= 0x13;
1536 break;
1537 case 0x4:
1538 cpc->pllmr |= 0x15;
1539 break;
1540 case 0x5:
1541 cpc->pllmr |= 0x16;
1542 break;
1543 default:
1544 break;
1545 }
1546 /* PDC */
1547 D = (cpc->psr >> 23) & 3;
1548 cpc->pllmr |= D << 26;
1549 /* ODP */
1550 D = (cpc->psr >> 21) & 3;
1551 cpc->pllmr |= D << 10;
1552 /* EBPD */
1553 D = (cpc->psr >> 17) & 3;
1554 cpc->pllmr |= D << 24;
1555 cpc->cr0 = 0x0000003C;
1556 cpc->cr1 = 0x2B0D8800;
1557 cpc->er = 0x00000000;
1558 cpc->fr = 0x00000000;
1559 ppc405cr_clk_setup(cpc);
1560 }
1561
1562 static void ppc405cr_clk_init (ppc405cr_cpc_t *cpc)
1563 {
1564 int D;
1565
1566 /* XXX: this should be read from IO pins */
1567 cpc->psr = 0x00000000; /* 8 bits ROM */
1568 /* PFWD */
1569 D = 0x2; /* Divide by 4 */
1570 cpc->psr |= D << 30;
1571 /* PFBD */
1572 D = 0x1; /* Divide by 2 */
1573 cpc->psr |= D << 28;
1574 /* PDC */
1575 D = 0x1; /* Divide by 2 */
1576 cpc->psr |= D << 23;
1577 /* PT */
1578 D = 0x5; /* M = 16 */
1579 cpc->psr |= D << 25;
1580 /* ODP */
1581 D = 0x1; /* Divide by 2 */
1582 cpc->psr |= D << 21;
1583 /* EBDP */
1584 D = 0x2; /* Divide by 4 */
1585 cpc->psr |= D << 17;
1586 }
1587
1588 static void ppc405cr_cpc_init (CPUPPCState *env, clk_setup_t clk_setup[7],
1589 uint32_t sysclk)
1590 {
1591 ppc405cr_cpc_t *cpc;
1592
1593 cpc = g_malloc0(sizeof(ppc405cr_cpc_t));
1594 memcpy(cpc->clk_setup, clk_setup,
1595 PPC405CR_CLK_NB * sizeof(clk_setup_t));
1596 cpc->sysclk = sysclk;
1597 cpc->jtagid = 0x42051049;
1598 ppc_dcr_register(env, PPC405CR_CPC0_PSR, cpc,
1599 &dcr_read_crcpc, &dcr_write_crcpc);
1600 ppc_dcr_register(env, PPC405CR_CPC0_CR0, cpc,
1601 &dcr_read_crcpc, &dcr_write_crcpc);
1602 ppc_dcr_register(env, PPC405CR_CPC0_CR1, cpc,
1603 &dcr_read_crcpc, &dcr_write_crcpc);
1604 ppc_dcr_register(env, PPC405CR_CPC0_JTAGID, cpc,
1605 &dcr_read_crcpc, &dcr_write_crcpc);
1606 ppc_dcr_register(env, PPC405CR_CPC0_PLLMR, cpc,
1607 &dcr_read_crcpc, &dcr_write_crcpc);
1608 ppc_dcr_register(env, PPC405CR_CPC0_ER, cpc,
1609 &dcr_read_crcpc, &dcr_write_crcpc);
1610 ppc_dcr_register(env, PPC405CR_CPC0_FR, cpc,
1611 &dcr_read_crcpc, &dcr_write_crcpc);
1612 ppc_dcr_register(env, PPC405CR_CPC0_SR, cpc,
1613 &dcr_read_crcpc, &dcr_write_crcpc);
1614 ppc405cr_clk_init(cpc);
1615 qemu_register_reset(ppc405cr_cpc_reset, cpc);
1616 }
1617
1618 CPUPPCState *ppc405cr_init(MemoryRegion *address_space_mem,
1619 MemoryRegion ram_memories[4],
1620 hwaddr ram_bases[4],
1621 hwaddr ram_sizes[4],
1622 uint32_t sysclk, qemu_irq **picp,
1623 int do_init)
1624 {
1625 clk_setup_t clk_setup[PPC405CR_CLK_NB];
1626 qemu_irq dma_irqs[4];
1627 PowerPCCPU *cpu;
1628 CPUPPCState *env;
1629 qemu_irq *pic, *irqs;
1630
1631 memset(clk_setup, 0, sizeof(clk_setup));
1632 cpu = ppc4xx_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
1633 &clk_setup[PPC405CR_TMR_CLK], sysclk);
1634 env = &cpu->env;
1635 /* Memory mapped devices registers */
1636 /* PLB arbitrer */
1637 ppc4xx_plb_init(env);
1638 /* PLB to OPB bridge */
1639 ppc4xx_pob_init(env);
1640 /* OBP arbitrer */
1641 ppc4xx_opba_init(0xef600600);
1642 /* Universal interrupt controller */
1643 irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
1644 irqs[PPCUIC_OUTPUT_INT] =
1645 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
1646 irqs[PPCUIC_OUTPUT_CINT] =
1647 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
1648 pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
1649 *picp = pic;
1650 /* SDRAM controller */
1651 ppc4xx_sdram_init(env, pic[14], 1, ram_memories,
1652 ram_bases, ram_sizes, do_init);
1653 /* External bus controller */
1654 ppc405_ebc_init(env);
1655 /* DMA controller */
1656 dma_irqs[0] = pic[26];
1657 dma_irqs[1] = pic[25];
1658 dma_irqs[2] = pic[24];
1659 dma_irqs[3] = pic[23];
1660 ppc405_dma_init(env, dma_irqs);
1661 /* Serial ports */
1662 if (serial_hds[0] != NULL) {
1663 serial_mm_init(address_space_mem, 0xef600300, 0, pic[0],
1664 PPC_SERIAL_MM_BAUDBASE, serial_hds[0],
1665 DEVICE_BIG_ENDIAN);
1666 }
1667 if (serial_hds[1] != NULL) {
1668 serial_mm_init(address_space_mem, 0xef600400, 0, pic[1],
1669 PPC_SERIAL_MM_BAUDBASE, serial_hds[1],
1670 DEVICE_BIG_ENDIAN);
1671 }
1672 /* IIC controller */
1673 sysbus_create_simple(TYPE_PPC4xx_I2C, 0xef600500, pic[2]);
1674 /* GPIO */
1675 ppc405_gpio_init(0xef600700);
1676 /* CPU control */
1677 ppc405cr_cpc_init(env, clk_setup, sysclk);
1678
1679 return env;
1680 }
1681
1682 /*****************************************************************************/
1683 /* PowerPC 405EP */
1684 /* CPU control */
1685 enum {
1686 PPC405EP_CPC0_PLLMR0 = 0x0F0,
1687 PPC405EP_CPC0_BOOT = 0x0F1,
1688 PPC405EP_CPC0_EPCTL = 0x0F3,
1689 PPC405EP_CPC0_PLLMR1 = 0x0F4,
1690 PPC405EP_CPC0_UCR = 0x0F5,
1691 PPC405EP_CPC0_SRR = 0x0F6,
1692 PPC405EP_CPC0_JTAGID = 0x0F7,
1693 PPC405EP_CPC0_PCI = 0x0F9,
1694 #if 0
1695 PPC405EP_CPC0_ER = xxx,
1696 PPC405EP_CPC0_FR = xxx,
1697 PPC405EP_CPC0_SR = xxx,
1698 #endif
1699 };
1700
1701 enum {
1702 PPC405EP_CPU_CLK = 0,
1703 PPC405EP_PLB_CLK = 1,
1704 PPC405EP_OPB_CLK = 2,
1705 PPC405EP_EBC_CLK = 3,
1706 PPC405EP_MAL_CLK = 4,
1707 PPC405EP_PCI_CLK = 5,
1708 PPC405EP_UART0_CLK = 6,
1709 PPC405EP_UART1_CLK = 7,
1710 PPC405EP_CLK_NB = 8,
1711 };
1712
1713 typedef struct ppc405ep_cpc_t ppc405ep_cpc_t;
1714 struct ppc405ep_cpc_t {
1715 uint32_t sysclk;
1716 clk_setup_t clk_setup[PPC405EP_CLK_NB];
1717 uint32_t boot;
1718 uint32_t epctl;
1719 uint32_t pllmr[2];
1720 uint32_t ucr;
1721 uint32_t srr;
1722 uint32_t jtagid;
1723 uint32_t pci;
1724 /* Clock and power management */
1725 uint32_t er;
1726 uint32_t fr;
1727 uint32_t sr;
1728 };
1729
1730 static void ppc405ep_compute_clocks (ppc405ep_cpc_t *cpc)
1731 {
1732 uint32_t CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk;
1733 uint32_t UART0_clk, UART1_clk;
1734 uint64_t VCO_out, PLL_out;
1735 int M, D;
1736
1737 VCO_out = 0;
1738 if ((cpc->pllmr[1] & 0x80000000) && !(cpc->pllmr[1] & 0x40000000)) {
1739 M = (((cpc->pllmr[1] >> 20) - 1) & 0xF) + 1; /* FBMUL */
1740 #ifdef DEBUG_CLOCKS_LL
1741 printf("FBMUL %01" PRIx32 " %d\n", (cpc->pllmr[1] >> 20) & 0xF, M);
1742 #endif
1743 D = 8 - ((cpc->pllmr[1] >> 16) & 0x7); /* FWDA */
1744 #ifdef DEBUG_CLOCKS_LL
1745 printf("FWDA %01" PRIx32 " %d\n", (cpc->pllmr[1] >> 16) & 0x7, D);
1746 #endif
1747 VCO_out = (uint64_t)cpc->sysclk * M * D;
1748 if (VCO_out < 500000000UL || VCO_out > 1000000000UL) {
1749 /* Error - unlock the PLL */
1750 printf("VCO out of range %" PRIu64 "\n", VCO_out);
1751 #if 0
1752 cpc->pllmr[1] &= ~0x80000000;
1753 goto pll_bypass;
1754 #endif
1755 }
1756 PLL_out = VCO_out / D;
1757 /* Pretend the PLL is locked */
1758 cpc->boot |= 0x00000001;
1759 } else {
1760 #if 0
1761 pll_bypass:
1762 #endif
1763 PLL_out = cpc->sysclk;
1764 if (cpc->pllmr[1] & 0x40000000) {
1765 /* Pretend the PLL is not locked */
1766 cpc->boot &= ~0x00000001;
1767 }
1768 }
1769 /* Now, compute all other clocks */
1770 D = ((cpc->pllmr[0] >> 20) & 0x3) + 1; /* CCDV */
1771 #ifdef DEBUG_CLOCKS_LL
1772 printf("CCDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 20) & 0x3, D);
1773 #endif
1774 CPU_clk = PLL_out / D;
1775 D = ((cpc->pllmr[0] >> 16) & 0x3) + 1; /* CBDV */
1776 #ifdef DEBUG_CLOCKS_LL
1777 printf("CBDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 16) & 0x3, D);
1778 #endif
1779 PLB_clk = CPU_clk / D;
1780 D = ((cpc->pllmr[0] >> 12) & 0x3) + 1; /* OPDV */
1781 #ifdef DEBUG_CLOCKS_LL
1782 printf("OPDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 12) & 0x3, D);
1783 #endif
1784 OPB_clk = PLB_clk / D;
1785 D = ((cpc->pllmr[0] >> 8) & 0x3) + 2; /* EPDV */
1786 #ifdef DEBUG_CLOCKS_LL
1787 printf("EPDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 8) & 0x3, D);
1788 #endif
1789 EBC_clk = PLB_clk / D;
1790 D = ((cpc->pllmr[0] >> 4) & 0x3) + 1; /* MPDV */
1791 #ifdef DEBUG_CLOCKS_LL
1792 printf("MPDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 4) & 0x3, D);
1793 #endif
1794 MAL_clk = PLB_clk / D;
1795 D = (cpc->pllmr[0] & 0x3) + 1; /* PPDV */
1796 #ifdef DEBUG_CLOCKS_LL
1797 printf("PPDV %01" PRIx32 " %d\n", cpc->pllmr[0] & 0x3, D);
1798 #endif
1799 PCI_clk = PLB_clk / D;
1800 D = ((cpc->ucr - 1) & 0x7F) + 1; /* U0DIV */
1801 #ifdef DEBUG_CLOCKS_LL
1802 printf("U0DIV %01" PRIx32 " %d\n", cpc->ucr & 0x7F, D);
1803 #endif
1804 UART0_clk = PLL_out / D;
1805 D = (((cpc->ucr >> 8) - 1) & 0x7F) + 1; /* U1DIV */
1806 #ifdef DEBUG_CLOCKS_LL
1807 printf("U1DIV %01" PRIx32 " %d\n", (cpc->ucr >> 8) & 0x7F, D);
1808 #endif
1809 UART1_clk = PLL_out / D;
1810 #ifdef DEBUG_CLOCKS
1811 printf("Setup PPC405EP clocks - sysclk %" PRIu32 " VCO %" PRIu64
1812 " PLL out %" PRIu64 " Hz\n", cpc->sysclk, VCO_out, PLL_out);
1813 printf("CPU %" PRIu32 " PLB %" PRIu32 " OPB %" PRIu32 " EBC %" PRIu32
1814 " MAL %" PRIu32 " PCI %" PRIu32 " UART0 %" PRIu32
1815 " UART1 %" PRIu32 "\n",
1816 CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk,
1817 UART0_clk, UART1_clk);
1818 #endif
1819 /* Setup CPU clocks */
1820 clk_setup(&cpc->clk_setup[PPC405EP_CPU_CLK], CPU_clk);
1821 /* Setup PLB clock */
1822 clk_setup(&cpc->clk_setup[PPC405EP_PLB_CLK], PLB_clk);
1823 /* Setup OPB clock */
1824 clk_setup(&cpc->clk_setup[PPC405EP_OPB_CLK], OPB_clk);
1825 /* Setup external clock */
1826 clk_setup(&cpc->clk_setup[PPC405EP_EBC_CLK], EBC_clk);
1827 /* Setup MAL clock */
1828 clk_setup(&cpc->clk_setup[PPC405EP_MAL_CLK], MAL_clk);
1829 /* Setup PCI clock */
1830 clk_setup(&cpc->clk_setup[PPC405EP_PCI_CLK], PCI_clk);
1831 /* Setup UART0 clock */
1832 clk_setup(&cpc->clk_setup[PPC405EP_UART0_CLK], UART0_clk);
1833 /* Setup UART1 clock */
1834 clk_setup(&cpc->clk_setup[PPC405EP_UART1_CLK], UART1_clk);
1835 }
1836
1837 static uint32_t dcr_read_epcpc (void *opaque, int dcrn)
1838 {
1839 ppc405ep_cpc_t *cpc;
1840 uint32_t ret;
1841
1842 cpc = opaque;
1843 switch (dcrn) {
1844 case PPC405EP_CPC0_BOOT:
1845 ret = cpc->boot;
1846 break;
1847 case PPC405EP_CPC0_EPCTL:
1848 ret = cpc->epctl;
1849 break;
1850 case PPC405EP_CPC0_PLLMR0:
1851 ret = cpc->pllmr[0];
1852 break;
1853 case PPC405EP_CPC0_PLLMR1:
1854 ret = cpc->pllmr[1];
1855 break;
1856 case PPC405EP_CPC0_UCR:
1857 ret = cpc->ucr;
1858 break;
1859 case PPC405EP_CPC0_SRR:
1860 ret = cpc->srr;
1861 break;
1862 case PPC405EP_CPC0_JTAGID:
1863 ret = cpc->jtagid;
1864 break;
1865 case PPC405EP_CPC0_PCI:
1866 ret = cpc->pci;
1867 break;
1868 default:
1869 /* Avoid gcc warning */
1870 ret = 0;
1871 break;
1872 }
1873
1874 return ret;
1875 }
1876
1877 static void dcr_write_epcpc (void *opaque, int dcrn, uint32_t val)
1878 {
1879 ppc405ep_cpc_t *cpc;
1880
1881 cpc = opaque;
1882 switch (dcrn) {
1883 case PPC405EP_CPC0_BOOT:
1884 /* Read-only register */
1885 break;
1886 case PPC405EP_CPC0_EPCTL:
1887 /* Don't care for now */
1888 cpc->epctl = val & 0xC00000F3;
1889 break;
1890 case PPC405EP_CPC0_PLLMR0:
1891 cpc->pllmr[0] = val & 0x00633333;
1892 ppc405ep_compute_clocks(cpc);
1893 break;
1894 case PPC405EP_CPC0_PLLMR1:
1895 cpc->pllmr[1] = val & 0xC0F73FFF;
1896 ppc405ep_compute_clocks(cpc);
1897 break;
1898 case PPC405EP_CPC0_UCR:
1899 /* UART control - don't care for now */
1900 cpc->ucr = val & 0x003F7F7F;
1901 break;
1902 case PPC405EP_CPC0_SRR:
1903 cpc->srr = val;
1904 break;
1905 case PPC405EP_CPC0_JTAGID:
1906 /* Read-only */
1907 break;
1908 case PPC405EP_CPC0_PCI:
1909 cpc->pci = val;
1910 break;
1911 }
1912 }
1913
1914 static void ppc405ep_cpc_reset (void *opaque)
1915 {
1916 ppc405ep_cpc_t *cpc = opaque;
1917
1918 cpc->boot = 0x00000010; /* Boot from PCI - IIC EEPROM disabled */
1919 cpc->epctl = 0x00000000;
1920 cpc->pllmr[0] = 0x00011010;
1921 cpc->pllmr[1] = 0x40000000;
1922 cpc->ucr = 0x00000000;
1923 cpc->srr = 0x00040000;
1924 cpc->pci = 0x00000000;
1925 cpc->er = 0x00000000;
1926 cpc->fr = 0x00000000;
1927 cpc->sr = 0x00000000;
1928 ppc405ep_compute_clocks(cpc);
1929 }
1930
1931 /* XXX: sysclk should be between 25 and 100 MHz */
1932 static void ppc405ep_cpc_init (CPUPPCState *env, clk_setup_t clk_setup[8],
1933 uint32_t sysclk)
1934 {
1935 ppc405ep_cpc_t *cpc;
1936
1937 cpc = g_malloc0(sizeof(ppc405ep_cpc_t));
1938 memcpy(cpc->clk_setup, clk_setup,
1939 PPC405EP_CLK_NB * sizeof(clk_setup_t));
1940 cpc->jtagid = 0x20267049;
1941 cpc->sysclk = sysclk;
1942 qemu_register_reset(&ppc405ep_cpc_reset, cpc);
1943 ppc_dcr_register(env, PPC405EP_CPC0_BOOT, cpc,
1944 &dcr_read_epcpc, &dcr_write_epcpc);
1945 ppc_dcr_register(env, PPC405EP_CPC0_EPCTL, cpc,
1946 &dcr_read_epcpc, &dcr_write_epcpc);
1947 ppc_dcr_register(env, PPC405EP_CPC0_PLLMR0, cpc,
1948 &dcr_read_epcpc, &dcr_write_epcpc);
1949 ppc_dcr_register(env, PPC405EP_CPC0_PLLMR1, cpc,
1950 &dcr_read_epcpc, &dcr_write_epcpc);
1951 ppc_dcr_register(env, PPC405EP_CPC0_UCR, cpc,
1952 &dcr_read_epcpc, &dcr_write_epcpc);
1953 ppc_dcr_register(env, PPC405EP_CPC0_SRR, cpc,
1954 &dcr_read_epcpc, &dcr_write_epcpc);
1955 ppc_dcr_register(env, PPC405EP_CPC0_JTAGID, cpc,
1956 &dcr_read_epcpc, &dcr_write_epcpc);
1957 ppc_dcr_register(env, PPC405EP_CPC0_PCI, cpc,
1958 &dcr_read_epcpc, &dcr_write_epcpc);
1959 #if 0
1960 ppc_dcr_register(env, PPC405EP_CPC0_ER, cpc,
1961 &dcr_read_epcpc, &dcr_write_epcpc);
1962 ppc_dcr_register(env, PPC405EP_CPC0_FR, cpc,
1963 &dcr_read_epcpc, &dcr_write_epcpc);
1964 ppc_dcr_register(env, PPC405EP_CPC0_SR, cpc,
1965 &dcr_read_epcpc, &dcr_write_epcpc);
1966 #endif
1967 }
1968
1969 CPUPPCState *ppc405ep_init(MemoryRegion *address_space_mem,
1970 MemoryRegion ram_memories[2],
1971 hwaddr ram_bases[2],
1972 hwaddr ram_sizes[2],
1973 uint32_t sysclk, qemu_irq **picp,
1974 int do_init)
1975 {
1976 clk_setup_t clk_setup[PPC405EP_CLK_NB], tlb_clk_setup;
1977 qemu_irq dma_irqs[4], gpt_irqs[5], mal_irqs[4];
1978 PowerPCCPU *cpu;
1979 CPUPPCState *env;
1980 qemu_irq *pic, *irqs;
1981
1982 memset(clk_setup, 0, sizeof(clk_setup));
1983 /* init CPUs */
1984 cpu = ppc4xx_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
1985 &tlb_clk_setup, sysclk);
1986 env = &cpu->env;
1987 clk_setup[PPC405EP_CPU_CLK].cb = tlb_clk_setup.cb;
1988 clk_setup[PPC405EP_CPU_CLK].opaque = tlb_clk_setup.opaque;
1989 /* Internal devices init */
1990 /* Memory mapped devices registers */
1991 /* PLB arbitrer */
1992 ppc4xx_plb_init(env);
1993 /* PLB to OPB bridge */
1994 ppc4xx_pob_init(env);
1995 /* OBP arbitrer */
1996 ppc4xx_opba_init(0xef600600);
1997 /* Initialize timers */
1998 ppc_booke_timers_init(cpu, sysclk, 0);
1999 /* Universal interrupt controller */
2000 irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
2001 irqs[PPCUIC_OUTPUT_INT] =
2002 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
2003 irqs[PPCUIC_OUTPUT_CINT] =
2004 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
2005 pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
2006 *picp = pic;
2007 /* SDRAM controller */
2008 /* XXX 405EP has no ECC interrupt */
2009 ppc4xx_sdram_init(env, pic[17], 2, ram_memories,
2010 ram_bases, ram_sizes, do_init);
2011 /* External bus controller */
2012 ppc405_ebc_init(env);
2013 /* DMA controller */
2014 dma_irqs[0] = pic[5];
2015 dma_irqs[1] = pic[6];
2016 dma_irqs[2] = pic[7];
2017 dma_irqs[3] = pic[8];
2018 ppc405_dma_init(env, dma_irqs);
2019 /* IIC controller */
2020 sysbus_create_simple(TYPE_PPC4xx_I2C, 0xef600500, pic[2]);
2021 /* GPIO */
2022 ppc405_gpio_init(0xef600700);
2023 /* Serial ports */
2024 if (serial_hds[0] != NULL) {
2025 serial_mm_init(address_space_mem, 0xef600300, 0, pic[0],
2026 PPC_SERIAL_MM_BAUDBASE, serial_hds[0],
2027 DEVICE_BIG_ENDIAN);
2028 }
2029 if (serial_hds[1] != NULL) {
2030 serial_mm_init(address_space_mem, 0xef600400, 0, pic[1],
2031 PPC_SERIAL_MM_BAUDBASE, serial_hds[1],
2032 DEVICE_BIG_ENDIAN);
2033 }
2034 /* OCM */
2035 ppc405_ocm_init(env);
2036 /* GPT */
2037 gpt_irqs[0] = pic[19];
2038 gpt_irqs[1] = pic[20];
2039 gpt_irqs[2] = pic[21];
2040 gpt_irqs[3] = pic[22];
2041 gpt_irqs[4] = pic[23];
2042 ppc4xx_gpt_init(0xef600000, gpt_irqs);
2043 /* PCI */
2044 /* Uses pic[3], pic[16], pic[18] */
2045 /* MAL */
2046 mal_irqs[0] = pic[11];
2047 mal_irqs[1] = pic[12];
2048 mal_irqs[2] = pic[13];
2049 mal_irqs[3] = pic[14];
2050 ppc4xx_mal_init(env, 4, 2, mal_irqs);
2051 /* Ethernet */
2052 /* Uses pic[9], pic[15], pic[17] */
2053 /* CPU control */
2054 ppc405ep_cpc_init(env, clk_setup, sysclk);
2055
2056 return env;
2057 }
AR7 emulation for QEMU