xref: /openbmc/qemu/hw/ppc/ppc440_uc.c (revision fa59483d)
1 /*
2  * QEMU PowerPC 440 embedded processors emulation
3  *
4  * Copyright (c) 2012 François Revol
5  * Copyright (c) 2016-2019 BALATON Zoltan
6  *
7  * This work is licensed under the GNU GPL license version 2 or later.
8  *
9  */
10 
11 #include "qemu/osdep.h"
12 #include "qemu/units.h"
13 #include "qemu-common.h"
14 #include "qemu/error-report.h"
15 #include "qapi/error.h"
16 #include "qemu/log.h"
17 #include "cpu.h"
18 #include "hw/hw.h"
19 #include "exec/address-spaces.h"
20 #include "exec/memory.h"
21 #include "hw/ppc/ppc.h"
22 #include "hw/pci/pci.h"
23 #include "sysemu/block-backend.h"
24 #include "ppc440.h"
25 
26 /*****************************************************************************/
27 /* L2 Cache as SRAM */
28 /* FIXME:fix names */
29 enum {
30     DCR_L2CACHE_BASE  = 0x30,
31     DCR_L2CACHE_CFG   = DCR_L2CACHE_BASE,
32     DCR_L2CACHE_CMD,
33     DCR_L2CACHE_ADDR,
34     DCR_L2CACHE_DATA,
35     DCR_L2CACHE_STAT,
36     DCR_L2CACHE_CVER,
37     DCR_L2CACHE_SNP0,
38     DCR_L2CACHE_SNP1,
39     DCR_L2CACHE_END   = DCR_L2CACHE_SNP1,
40 };
41 
42 /* base is 460ex-specific, cf. U-Boot, ppc4xx-isram.h */
43 enum {
44     DCR_ISRAM0_BASE   = 0x20,
45     DCR_ISRAM0_SB0CR  = DCR_ISRAM0_BASE,
46     DCR_ISRAM0_SB1CR,
47     DCR_ISRAM0_SB2CR,
48     DCR_ISRAM0_SB3CR,
49     DCR_ISRAM0_BEAR,
50     DCR_ISRAM0_BESR0,
51     DCR_ISRAM0_BESR1,
52     DCR_ISRAM0_PMEG,
53     DCR_ISRAM0_CID,
54     DCR_ISRAM0_REVID,
55     DCR_ISRAM0_DPC,
56     DCR_ISRAM0_END    = DCR_ISRAM0_DPC
57 };
58 
59 enum {
60     DCR_ISRAM1_BASE   = 0xb0,
61     DCR_ISRAM1_SB0CR  = DCR_ISRAM1_BASE,
62     /* single bank */
63     DCR_ISRAM1_BEAR   = DCR_ISRAM1_BASE + 0x04,
64     DCR_ISRAM1_BESR0,
65     DCR_ISRAM1_BESR1,
66     DCR_ISRAM1_PMEG,
67     DCR_ISRAM1_CID,
68     DCR_ISRAM1_REVID,
69     DCR_ISRAM1_DPC,
70     DCR_ISRAM1_END    = DCR_ISRAM1_DPC
71 };
72 
73 typedef struct ppc4xx_l2sram_t {
74     MemoryRegion bank[4];
75     uint32_t l2cache[8];
76     uint32_t isram0[11];
77 } ppc4xx_l2sram_t;
78 
79 #ifdef MAP_L2SRAM
80 static void l2sram_update_mappings(ppc4xx_l2sram_t *l2sram,
81                                    uint32_t isarc, uint32_t isacntl,
82                                    uint32_t dsarc, uint32_t dsacntl)
83 {
84     if (l2sram->isarc != isarc ||
85         (l2sram->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
86         if (l2sram->isacntl & 0x80000000) {
87             /* Unmap previously assigned memory region */
88             memory_region_del_subregion(get_system_memory(),
89                                         &l2sram->isarc_ram);
90         }
91         if (isacntl & 0x80000000) {
92             /* Map new instruction memory region */
93             memory_region_add_subregion(get_system_memory(), isarc,
94                                         &l2sram->isarc_ram);
95         }
96     }
97     if (l2sram->dsarc != dsarc ||
98         (l2sram->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
99         if (l2sram->dsacntl & 0x80000000) {
100             /* Beware not to unmap the region we just mapped */
101             if (!(isacntl & 0x80000000) || l2sram->dsarc != isarc) {
102                 /* Unmap previously assigned memory region */
103                 memory_region_del_subregion(get_system_memory(),
104                                             &l2sram->dsarc_ram);
105             }
106         }
107         if (dsacntl & 0x80000000) {
108             /* Beware not to remap the region we just mapped */
109             if (!(isacntl & 0x80000000) || dsarc != isarc) {
110                 /* Map new data memory region */
111                 memory_region_add_subregion(get_system_memory(), dsarc,
112                                             &l2sram->dsarc_ram);
113             }
114         }
115     }
116 }
117 #endif
118 
119 static uint32_t dcr_read_l2sram(void *opaque, int dcrn)
120 {
121     ppc4xx_l2sram_t *l2sram = opaque;
122     uint32_t ret = 0;
123 
124     switch (dcrn) {
125     case DCR_L2CACHE_CFG:
126     case DCR_L2CACHE_CMD:
127     case DCR_L2CACHE_ADDR:
128     case DCR_L2CACHE_DATA:
129     case DCR_L2CACHE_STAT:
130     case DCR_L2CACHE_CVER:
131     case DCR_L2CACHE_SNP0:
132     case DCR_L2CACHE_SNP1:
133         ret = l2sram->l2cache[dcrn - DCR_L2CACHE_BASE];
134         break;
135 
136     case DCR_ISRAM0_SB0CR:
137     case DCR_ISRAM0_SB1CR:
138     case DCR_ISRAM0_SB2CR:
139     case DCR_ISRAM0_SB3CR:
140     case DCR_ISRAM0_BEAR:
141     case DCR_ISRAM0_BESR0:
142     case DCR_ISRAM0_BESR1:
143     case DCR_ISRAM0_PMEG:
144     case DCR_ISRAM0_CID:
145     case DCR_ISRAM0_REVID:
146     case DCR_ISRAM0_DPC:
147         ret = l2sram->isram0[dcrn - DCR_ISRAM0_BASE];
148         break;
149 
150     default:
151         break;
152     }
153 
154     return ret;
155 }
156 
157 static void dcr_write_l2sram(void *opaque, int dcrn, uint32_t val)
158 {
159     /*ppc4xx_l2sram_t *l2sram = opaque;*/
160     /* FIXME: Actually handle L2 cache mapping */
161 
162     switch (dcrn) {
163     case DCR_L2CACHE_CFG:
164     case DCR_L2CACHE_CMD:
165     case DCR_L2CACHE_ADDR:
166     case DCR_L2CACHE_DATA:
167     case DCR_L2CACHE_STAT:
168     case DCR_L2CACHE_CVER:
169     case DCR_L2CACHE_SNP0:
170     case DCR_L2CACHE_SNP1:
171         /*l2sram->l2cache[dcrn - DCR_L2CACHE_BASE] = val;*/
172         break;
173 
174     case DCR_ISRAM0_SB0CR:
175     case DCR_ISRAM0_SB1CR:
176     case DCR_ISRAM0_SB2CR:
177     case DCR_ISRAM0_SB3CR:
178     case DCR_ISRAM0_BEAR:
179     case DCR_ISRAM0_BESR0:
180     case DCR_ISRAM0_BESR1:
181     case DCR_ISRAM0_PMEG:
182     case DCR_ISRAM0_CID:
183     case DCR_ISRAM0_REVID:
184     case DCR_ISRAM0_DPC:
185         /*l2sram->isram0[dcrn - DCR_L2CACHE_BASE] = val;*/
186         break;
187 
188     case DCR_ISRAM1_SB0CR:
189     case DCR_ISRAM1_BEAR:
190     case DCR_ISRAM1_BESR0:
191     case DCR_ISRAM1_BESR1:
192     case DCR_ISRAM1_PMEG:
193     case DCR_ISRAM1_CID:
194     case DCR_ISRAM1_REVID:
195     case DCR_ISRAM1_DPC:
196         /*l2sram->isram1[dcrn - DCR_L2CACHE_BASE] = val;*/
197         break;
198     }
199     /*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/
200 }
201 
202 static void l2sram_reset(void *opaque)
203 {
204     ppc4xx_l2sram_t *l2sram = opaque;
205 
206     memset(l2sram->l2cache, 0, sizeof(l2sram->l2cache));
207     l2sram->l2cache[DCR_L2CACHE_STAT - DCR_L2CACHE_BASE] = 0x80000000;
208     memset(l2sram->isram0, 0, sizeof(l2sram->isram0));
209     /*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/
210 }
211 
212 void ppc4xx_l2sram_init(CPUPPCState *env)
213 {
214     ppc4xx_l2sram_t *l2sram;
215 
216     l2sram = g_malloc0(sizeof(*l2sram));
217     /* XXX: Size is 4*64kB for 460ex, cf. U-Boot, ppc4xx-isram.h */
218     memory_region_init_ram(&l2sram->bank[0], NULL, "ppc4xx.l2sram_bank0",
219                            64 * KiB, &error_abort);
220     memory_region_init_ram(&l2sram->bank[1], NULL, "ppc4xx.l2sram_bank1",
221                            64 * KiB, &error_abort);
222     memory_region_init_ram(&l2sram->bank[2], NULL, "ppc4xx.l2sram_bank2",
223                            64 * KiB, &error_abort);
224     memory_region_init_ram(&l2sram->bank[3], NULL, "ppc4xx.l2sram_bank3",
225                            64 * KiB, &error_abort);
226     qemu_register_reset(&l2sram_reset, l2sram);
227     ppc_dcr_register(env, DCR_L2CACHE_CFG,
228                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
229     ppc_dcr_register(env, DCR_L2CACHE_CMD,
230                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
231     ppc_dcr_register(env, DCR_L2CACHE_ADDR,
232                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
233     ppc_dcr_register(env, DCR_L2CACHE_DATA,
234                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
235     ppc_dcr_register(env, DCR_L2CACHE_STAT,
236                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
237     ppc_dcr_register(env, DCR_L2CACHE_CVER,
238                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
239     ppc_dcr_register(env, DCR_L2CACHE_SNP0,
240                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
241     ppc_dcr_register(env, DCR_L2CACHE_SNP1,
242                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
243 
244     ppc_dcr_register(env, DCR_ISRAM0_SB0CR,
245                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
246     ppc_dcr_register(env, DCR_ISRAM0_SB1CR,
247                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
248     ppc_dcr_register(env, DCR_ISRAM0_SB2CR,
249                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
250     ppc_dcr_register(env, DCR_ISRAM0_SB3CR,
251                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
252     ppc_dcr_register(env, DCR_ISRAM0_PMEG,
253                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
254     ppc_dcr_register(env, DCR_ISRAM0_DPC,
255                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
256 
257     ppc_dcr_register(env, DCR_ISRAM1_SB0CR,
258                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
259     ppc_dcr_register(env, DCR_ISRAM1_PMEG,
260                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
261     ppc_dcr_register(env, DCR_ISRAM1_DPC,
262                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
263 }
264 
265 /*****************************************************************************/
266 /* Clocking Power on Reset */
267 enum {
268     CPR0_CFGADDR = 0xC,
269     CPR0_CFGDATA = 0xD,
270 
271     CPR0_PLLD = 0x060,
272     CPR0_PLBED = 0x080,
273     CPR0_OPBD = 0x0C0,
274     CPR0_PERD = 0x0E0,
275     CPR0_AHBD = 0x100,
276 };
277 
278 typedef struct ppc4xx_cpr_t {
279     uint32_t addr;
280 } ppc4xx_cpr_t;
281 
282 static uint32_t dcr_read_cpr(void *opaque, int dcrn)
283 {
284     ppc4xx_cpr_t *cpr = opaque;
285     uint32_t ret = 0;
286 
287     switch (dcrn) {
288     case CPR0_CFGADDR:
289         ret = cpr->addr;
290         break;
291     case CPR0_CFGDATA:
292         switch (cpr->addr) {
293         case CPR0_PLLD:
294             ret = (0xb5 << 24) | (1 << 16) | (9 << 8);
295             break;
296         case CPR0_PLBED:
297             ret = (5 << 24);
298             break;
299         case CPR0_OPBD:
300             ret = (2 << 24);
301             break;
302         case CPR0_PERD:
303         case CPR0_AHBD:
304             ret = (1 << 24);
305             break;
306         default:
307             break;
308         }
309         break;
310     default:
311         break;
312     }
313 
314     return ret;
315 }
316 
317 static void dcr_write_cpr(void *opaque, int dcrn, uint32_t val)
318 {
319     ppc4xx_cpr_t *cpr = opaque;
320 
321     switch (dcrn) {
322     case CPR0_CFGADDR:
323         cpr->addr = val;
324         break;
325     case CPR0_CFGDATA:
326         break;
327     default:
328         break;
329     }
330 }
331 
332 static void ppc4xx_cpr_reset(void *opaque)
333 {
334     ppc4xx_cpr_t *cpr = opaque;
335 
336     cpr->addr = 0;
337 }
338 
339 void ppc4xx_cpr_init(CPUPPCState *env)
340 {
341     ppc4xx_cpr_t *cpr;
342 
343     cpr = g_malloc0(sizeof(*cpr));
344     ppc_dcr_register(env, CPR0_CFGADDR, cpr, &dcr_read_cpr, &dcr_write_cpr);
345     ppc_dcr_register(env, CPR0_CFGDATA, cpr, &dcr_read_cpr, &dcr_write_cpr);
346     qemu_register_reset(ppc4xx_cpr_reset, cpr);
347 }
348 
349 /*****************************************************************************/
350 /* System DCRs */
351 typedef struct ppc4xx_sdr_t ppc4xx_sdr_t;
352 struct ppc4xx_sdr_t {
353     uint32_t addr;
354 };
355 
356 enum {
357     SDR0_CFGADDR = 0x00e,
358     SDR0_CFGDATA,
359     SDR0_STRP0 = 0x020,
360     SDR0_STRP1,
361     SDR0_102 = 0x66,
362     SDR0_103,
363     SDR0_128 = 0x80,
364     SDR0_ECID3 = 0x083,
365     SDR0_DDR0 = 0x0e1,
366     SDR0_USB0 = 0x320,
367 };
368 
369 enum {
370     PESDR0_LOOP = 0x303,
371     PESDR0_RCSSET,
372     PESDR0_RCSSTS,
373     PESDR0_RSTSTA = 0x310,
374     PESDR1_LOOP = 0x343,
375     PESDR1_RCSSET,
376     PESDR1_RCSSTS,
377     PESDR1_RSTSTA = 0x365,
378 };
379 
380 #define SDR0_DDR0_DDRM_ENCODE(n)  ((((unsigned long)(n)) & 0x03) << 29)
381 #define SDR0_DDR0_DDRM_DDR1       0x20000000
382 #define SDR0_DDR0_DDRM_DDR2       0x40000000
383 
384 static uint32_t dcr_read_sdr(void *opaque, int dcrn)
385 {
386     ppc4xx_sdr_t *sdr = opaque;
387     uint32_t ret = 0;
388 
389     switch (dcrn) {
390     case SDR0_CFGADDR:
391         ret = sdr->addr;
392         break;
393     case SDR0_CFGDATA:
394         switch (sdr->addr) {
395         case SDR0_STRP0:
396             ret = (0xb5 << 8) | (1 << 4) | 9;
397             break;
398         case SDR0_STRP1:
399             ret = (5 << 29) | (2 << 26) | (1 << 24);
400             break;
401         case SDR0_ECID3:
402             ret = 1 << 20; /* No Security/Kasumi support */
403             break;
404         case SDR0_DDR0:
405             ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1;
406             break;
407         case PESDR0_RCSSET:
408         case PESDR1_RCSSET:
409             ret = (1 << 24) | (1 << 16);
410             break;
411         case PESDR0_RCSSTS:
412         case PESDR1_RCSSTS:
413             ret = (1 << 16) | (1 << 12);
414             break;
415         case PESDR0_RSTSTA:
416         case PESDR1_RSTSTA:
417             ret = 1;
418             break;
419         case PESDR0_LOOP:
420         case PESDR1_LOOP:
421             ret = 1 << 12;
422             break;
423         default:
424             break;
425         }
426         break;
427     default:
428         break;
429     }
430 
431     return ret;
432 }
433 
434 static void dcr_write_sdr(void *opaque, int dcrn, uint32_t val)
435 {
436     ppc4xx_sdr_t *sdr = opaque;
437 
438     switch (dcrn) {
439     case SDR0_CFGADDR:
440         sdr->addr = val;
441         break;
442     case SDR0_CFGDATA:
443         switch (sdr->addr) {
444         case 0x00: /* B0CR */
445             break;
446         default:
447             break;
448         }
449         break;
450     default:
451         break;
452     }
453 }
454 
455 static void sdr_reset(void *opaque)
456 {
457     ppc4xx_sdr_t *sdr = opaque;
458 
459     sdr->addr = 0;
460 }
461 
462 void ppc4xx_sdr_init(CPUPPCState *env)
463 {
464     ppc4xx_sdr_t *sdr;
465 
466     sdr = g_malloc0(sizeof(*sdr));
467     qemu_register_reset(&sdr_reset, sdr);
468     ppc_dcr_register(env, SDR0_CFGADDR,
469                      sdr, &dcr_read_sdr, &dcr_write_sdr);
470     ppc_dcr_register(env, SDR0_CFGDATA,
471                      sdr, &dcr_read_sdr, &dcr_write_sdr);
472     ppc_dcr_register(env, SDR0_102,
473                      sdr, &dcr_read_sdr, &dcr_write_sdr);
474     ppc_dcr_register(env, SDR0_103,
475                      sdr, &dcr_read_sdr, &dcr_write_sdr);
476     ppc_dcr_register(env, SDR0_128,
477                      sdr, &dcr_read_sdr, &dcr_write_sdr);
478     ppc_dcr_register(env, SDR0_USB0,
479                      sdr, &dcr_read_sdr, &dcr_write_sdr);
480 }
481 
482 /*****************************************************************************/
483 /* SDRAM controller */
484 typedef struct ppc440_sdram_t {
485     uint32_t addr;
486     int nbanks;
487     MemoryRegion containers[4]; /* used for clipping */
488     MemoryRegion *ram_memories;
489     hwaddr ram_bases[4];
490     hwaddr ram_sizes[4];
491     uint32_t bcr[4];
492 } ppc440_sdram_t;
493 
494 enum {
495     SDRAM0_CFGADDR = 0x10,
496     SDRAM0_CFGDATA,
497     SDRAM_R0BAS = 0x40,
498     SDRAM_R1BAS,
499     SDRAM_R2BAS,
500     SDRAM_R3BAS,
501     SDRAM_CONF1HB = 0x45,
502     SDRAM_PLBADDULL = 0x4a,
503     SDRAM_CONF1LL = 0x4b,
504     SDRAM_CONFPATHB = 0x4f,
505     SDRAM_PLBADDUHB = 0x50,
506 };
507 
508 static uint32_t sdram_bcr(hwaddr ram_base, hwaddr ram_size)
509 {
510     uint32_t bcr;
511 
512     switch (ram_size) {
513     case (8 * MiB):
514         bcr = 0xffc0;
515         break;
516     case (16 * MiB):
517         bcr = 0xff80;
518         break;
519     case (32 * MiB):
520         bcr = 0xff00;
521         break;
522     case (64 * MiB):
523         bcr = 0xfe00;
524         break;
525     case (128 * MiB):
526         bcr = 0xfc00;
527         break;
528     case (256 * MiB):
529         bcr = 0xf800;
530         break;
531     case (512 * MiB):
532         bcr = 0xf000;
533         break;
534     case (1 * GiB):
535         bcr = 0xe000;
536         break;
537     case (2 * GiB):
538         bcr = 0xc000;
539         break;
540     case (4 * GiB):
541         bcr = 0x8000;
542         break;
543     default:
544         error_report("invalid RAM size " TARGET_FMT_plx, ram_size);
545         return 0;
546     }
547     bcr |= ram_base >> 2 & 0xffe00000;
548     bcr |= 1;
549 
550     return bcr;
551 }
552 
553 static inline hwaddr sdram_base(uint32_t bcr)
554 {
555     return (bcr & 0xffe00000) << 2;
556 }
557 
558 static uint64_t sdram_size(uint32_t bcr)
559 {
560     uint64_t size;
561     int sh;
562 
563     sh = 1024 - ((bcr >> 6) & 0x3ff);
564     size = 8 * MiB * sh;
565 
566     return size;
567 }
568 
569 static void sdram_set_bcr(ppc440_sdram_t *sdram, int i,
570                           uint32_t bcr, int enabled)
571 {
572     if (sdram->bcr[i] & 1) {
573         /* First unmap RAM if enabled */
574         memory_region_del_subregion(get_system_memory(),
575                                     &sdram->containers[i]);
576         memory_region_del_subregion(&sdram->containers[i],
577                                     &sdram->ram_memories[i]);
578         object_unparent(OBJECT(&sdram->containers[i]));
579     }
580     sdram->bcr[i] = bcr & 0xffe0ffc1;
581     if (enabled && (bcr & 1)) {
582         memory_region_init(&sdram->containers[i], NULL, "sdram-containers",
583                            sdram_size(bcr));
584         memory_region_add_subregion(&sdram->containers[i], 0,
585                                     &sdram->ram_memories[i]);
586         memory_region_add_subregion(get_system_memory(),
587                                     sdram_base(bcr),
588                                     &sdram->containers[i]);
589     }
590 }
591 
592 static void sdram_map_bcr(ppc440_sdram_t *sdram)
593 {
594     int i;
595 
596     for (i = 0; i < sdram->nbanks; i++) {
597         if (sdram->ram_sizes[i] != 0) {
598             sdram_set_bcr(sdram, i, sdram_bcr(sdram->ram_bases[i],
599                                               sdram->ram_sizes[i]), 1);
600         } else {
601             sdram_set_bcr(sdram, i, 0, 0);
602         }
603     }
604 }
605 
606 static uint32_t dcr_read_sdram(void *opaque, int dcrn)
607 {
608     ppc440_sdram_t *sdram = opaque;
609     uint32_t ret = 0;
610 
611     switch (dcrn) {
612     case SDRAM_R0BAS:
613     case SDRAM_R1BAS:
614     case SDRAM_R2BAS:
615     case SDRAM_R3BAS:
616         if (sdram->ram_sizes[dcrn - SDRAM_R0BAS]) {
617             ret = sdram_bcr(sdram->ram_bases[dcrn - SDRAM_R0BAS],
618                             sdram->ram_sizes[dcrn - SDRAM_R0BAS]);
619         }
620         break;
621     case SDRAM_CONF1HB:
622     case SDRAM_CONF1LL:
623     case SDRAM_CONFPATHB:
624     case SDRAM_PLBADDULL:
625     case SDRAM_PLBADDUHB:
626         break;
627     case SDRAM0_CFGADDR:
628         ret = sdram->addr;
629         break;
630     case SDRAM0_CFGDATA:
631         switch (sdram->addr) {
632         case 0x14: /* SDRAM_MCSTAT (405EX) */
633         case 0x1F:
634             ret = 0x80000000;
635             break;
636         case 0x21: /* SDRAM_MCOPT2 */
637             ret = 0x08000000;
638             break;
639         case 0x40: /* SDRAM_MB0CF */
640             ret = 0x00008001;
641             break;
642         case 0x7A: /* SDRAM_DLCR */
643             ret = 0x02000000;
644             break;
645         case 0xE1: /* SDR0_DDR0 */
646             ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1;
647             break;
648         default:
649             break;
650         }
651         break;
652     default:
653         break;
654     }
655 
656     return ret;
657 }
658 
659 static void dcr_write_sdram(void *opaque, int dcrn, uint32_t val)
660 {
661     ppc440_sdram_t *sdram = opaque;
662 
663     switch (dcrn) {
664     case SDRAM_R0BAS:
665     case SDRAM_R1BAS:
666     case SDRAM_R2BAS:
667     case SDRAM_R3BAS:
668     case SDRAM_CONF1HB:
669     case SDRAM_CONF1LL:
670     case SDRAM_CONFPATHB:
671     case SDRAM_PLBADDULL:
672     case SDRAM_PLBADDUHB:
673         break;
674     case SDRAM0_CFGADDR:
675         sdram->addr = val;
676         break;
677     case SDRAM0_CFGDATA:
678         switch (sdram->addr) {
679         case 0x00: /* B0CR */
680             break;
681         default:
682             break;
683         }
684         break;
685     default:
686         break;
687     }
688 }
689 
690 static void sdram_reset(void *opaque)
691 {
692     ppc440_sdram_t *sdram = opaque;
693 
694     sdram->addr = 0;
695 }
696 
697 void ppc440_sdram_init(CPUPPCState *env, int nbanks,
698                        MemoryRegion *ram_memories,
699                        hwaddr *ram_bases, hwaddr *ram_sizes,
700                        int do_init)
701 {
702     ppc440_sdram_t *sdram;
703 
704     sdram = g_malloc0(sizeof(*sdram));
705     sdram->nbanks = nbanks;
706     sdram->ram_memories = ram_memories;
707     memcpy(sdram->ram_bases, ram_bases, nbanks * sizeof(hwaddr));
708     memcpy(sdram->ram_sizes, ram_sizes, nbanks * sizeof(hwaddr));
709     qemu_register_reset(&sdram_reset, sdram);
710     ppc_dcr_register(env, SDRAM0_CFGADDR,
711                      sdram, &dcr_read_sdram, &dcr_write_sdram);
712     ppc_dcr_register(env, SDRAM0_CFGDATA,
713                      sdram, &dcr_read_sdram, &dcr_write_sdram);
714     if (do_init) {
715         sdram_map_bcr(sdram);
716     }
717 
718     ppc_dcr_register(env, SDRAM_R0BAS,
719                      sdram, &dcr_read_sdram, &dcr_write_sdram);
720     ppc_dcr_register(env, SDRAM_R1BAS,
721                      sdram, &dcr_read_sdram, &dcr_write_sdram);
722     ppc_dcr_register(env, SDRAM_R2BAS,
723                      sdram, &dcr_read_sdram, &dcr_write_sdram);
724     ppc_dcr_register(env, SDRAM_R3BAS,
725                      sdram, &dcr_read_sdram, &dcr_write_sdram);
726     ppc_dcr_register(env, SDRAM_CONF1HB,
727                      sdram, &dcr_read_sdram, &dcr_write_sdram);
728     ppc_dcr_register(env, SDRAM_PLBADDULL,
729                      sdram, &dcr_read_sdram, &dcr_write_sdram);
730     ppc_dcr_register(env, SDRAM_CONF1LL,
731                      sdram, &dcr_read_sdram, &dcr_write_sdram);
732     ppc_dcr_register(env, SDRAM_CONFPATHB,
733                      sdram, &dcr_read_sdram, &dcr_write_sdram);
734     ppc_dcr_register(env, SDRAM_PLBADDUHB,
735                      sdram, &dcr_read_sdram, &dcr_write_sdram);
736 }
737 
738 /*****************************************************************************/
739 /* PLB to AHB bridge */
740 enum {
741     AHB_TOP    = 0xA4,
742     AHB_BOT    = 0xA5,
743 };
744 
745 typedef struct ppc4xx_ahb_t {
746     uint32_t top;
747     uint32_t bot;
748 } ppc4xx_ahb_t;
749 
750 static uint32_t dcr_read_ahb(void *opaque, int dcrn)
751 {
752     ppc4xx_ahb_t *ahb = opaque;
753     uint32_t ret = 0;
754 
755     switch (dcrn) {
756     case AHB_TOP:
757         ret = ahb->top;
758         break;
759     case AHB_BOT:
760         ret = ahb->bot;
761         break;
762     default:
763         break;
764     }
765 
766     return ret;
767 }
768 
769 static void dcr_write_ahb(void *opaque, int dcrn, uint32_t val)
770 {
771     ppc4xx_ahb_t *ahb = opaque;
772 
773     switch (dcrn) {
774     case AHB_TOP:
775         ahb->top = val;
776         break;
777     case AHB_BOT:
778         ahb->bot = val;
779         break;
780     }
781 }
782 
783 static void ppc4xx_ahb_reset(void *opaque)
784 {
785     ppc4xx_ahb_t *ahb = opaque;
786 
787     /* No error */
788     ahb->top = 0;
789     ahb->bot = 0;
790 }
791 
792 void ppc4xx_ahb_init(CPUPPCState *env)
793 {
794     ppc4xx_ahb_t *ahb;
795 
796     ahb = g_malloc0(sizeof(*ahb));
797     ppc_dcr_register(env, AHB_TOP, ahb, &dcr_read_ahb, &dcr_write_ahb);
798     ppc_dcr_register(env, AHB_BOT, ahb, &dcr_read_ahb, &dcr_write_ahb);
799     qemu_register_reset(ppc4xx_ahb_reset, ahb);
800 }
801 
802 /*****************************************************************************/
803 /* DMA controller */
804 
805 #define DMA0_CR_CE  (1 << 31)
806 #define DMA0_CR_PW  (1 << 26 | 1 << 25)
807 #define DMA0_CR_DAI (1 << 24)
808 #define DMA0_CR_SAI (1 << 23)
809 #define DMA0_CR_DEC (1 << 2)
810 
811 enum {
812     DMA0_CR  = 0x00,
813     DMA0_CT,
814     DMA0_SAH,
815     DMA0_SAL,
816     DMA0_DAH,
817     DMA0_DAL,
818     DMA0_SGH,
819     DMA0_SGL,
820 
821     DMA0_SR  = 0x20,
822     DMA0_SGC = 0x23,
823     DMA0_SLP = 0x25,
824     DMA0_POL = 0x26,
825 };
826 
827 typedef struct {
828     uint32_t cr;
829     uint32_t ct;
830     uint64_t sa;
831     uint64_t da;
832     uint64_t sg;
833 } PPC4xxDmaChnl;
834 
835 typedef struct {
836     int base;
837     PPC4xxDmaChnl ch[4];
838     uint32_t sr;
839 } PPC4xxDmaState;
840 
841 static uint32_t dcr_read_dma(void *opaque, int dcrn)
842 {
843     PPC4xxDmaState *dma = opaque;
844     uint32_t val = 0;
845     int addr = dcrn - dma->base;
846     int chnl = addr / 8;
847 
848     switch (addr) {
849     case 0x00 ... 0x1f:
850         switch (addr % 8) {
851         case DMA0_CR:
852             val = dma->ch[chnl].cr;
853             break;
854         case DMA0_CT:
855             val = dma->ch[chnl].ct;
856             break;
857         case DMA0_SAH:
858             val = dma->ch[chnl].sa >> 32;
859             break;
860         case DMA0_SAL:
861             val = dma->ch[chnl].sa;
862             break;
863         case DMA0_DAH:
864             val = dma->ch[chnl].da >> 32;
865             break;
866         case DMA0_DAL:
867             val = dma->ch[chnl].da;
868             break;
869         case DMA0_SGH:
870             val = dma->ch[chnl].sg >> 32;
871             break;
872         case DMA0_SGL:
873             val = dma->ch[chnl].sg;
874             break;
875         }
876         break;
877     case DMA0_SR:
878         val = dma->sr;
879         break;
880     default:
881         qemu_log_mask(LOG_UNIMP, "%s: unimplemented register %x (%d, %x)\n",
882                       __func__, dcrn, chnl, addr);
883     }
884 
885     return val;
886 }
887 
888 static void dcr_write_dma(void *opaque, int dcrn, uint32_t val)
889 {
890     PPC4xxDmaState *dma = opaque;
891     int addr = dcrn - dma->base;
892     int chnl = addr / 8;
893 
894     switch (addr) {
895     case 0x00 ... 0x1f:
896         switch (addr % 8) {
897         case DMA0_CR:
898             dma->ch[chnl].cr = val;
899             if (val & DMA0_CR_CE) {
900                 int count = dma->ch[chnl].ct & 0xffff;
901 
902                 if (count) {
903                     int width, i, sidx, didx;
904                     uint8_t *rptr, *wptr;
905                     hwaddr rlen, wlen;
906 
907                     sidx = didx = 0;
908                     width = 1 << ((val & DMA0_CR_PW) >> 25);
909                     rptr = cpu_physical_memory_map(dma->ch[chnl].sa, &rlen, 0);
910                     wptr = cpu_physical_memory_map(dma->ch[chnl].da, &wlen, 1);
911                     if (rptr && wptr) {
912                         if (!(val & DMA0_CR_DEC) &&
913                             val & DMA0_CR_SAI && val & DMA0_CR_DAI) {
914                             /* optimise common case */
915                             memmove(wptr, rptr, count * width);
916                             sidx = didx = count * width;
917                         } else {
918                             /* do it the slow way */
919                             for (sidx = didx = i = 0; i < count; i++) {
920                                 uint64_t v = ldn_le_p(rptr + sidx, width);
921                                 stn_le_p(wptr + didx, width, v);
922                                 if (val & DMA0_CR_SAI) {
923                                     sidx += width;
924                                 }
925                                 if (val & DMA0_CR_DAI) {
926                                     didx += width;
927                                 }
928                             }
929                         }
930                     }
931                     if (wptr) {
932                         cpu_physical_memory_unmap(wptr, wlen, 1, didx);
933                     }
934                     if (rptr) {
935                         cpu_physical_memory_unmap(rptr, rlen, 0, sidx);
936                     }
937                 }
938             }
939             break;
940         case DMA0_CT:
941             dma->ch[chnl].ct = val;
942             break;
943         case DMA0_SAH:
944             dma->ch[chnl].sa &= 0xffffffffULL;
945             dma->ch[chnl].sa |= (uint64_t)val << 32;
946             break;
947         case DMA0_SAL:
948             dma->ch[chnl].sa &= 0xffffffff00000000ULL;
949             dma->ch[chnl].sa |= val;
950             break;
951         case DMA0_DAH:
952             dma->ch[chnl].da &= 0xffffffffULL;
953             dma->ch[chnl].da |= (uint64_t)val << 32;
954             break;
955         case DMA0_DAL:
956             dma->ch[chnl].da &= 0xffffffff00000000ULL;
957             dma->ch[chnl].da |= val;
958             break;
959         case DMA0_SGH:
960             dma->ch[chnl].sg &= 0xffffffffULL;
961             dma->ch[chnl].sg |= (uint64_t)val << 32;
962             break;
963         case DMA0_SGL:
964             dma->ch[chnl].sg &= 0xffffffff00000000ULL;
965             dma->ch[chnl].sg |= val;
966             break;
967         }
968         break;
969     case DMA0_SR:
970         dma->sr &= ~val;
971         break;
972     default:
973         qemu_log_mask(LOG_UNIMP, "%s: unimplemented register %x (%d, %x)\n",
974                       __func__, dcrn, chnl, addr);
975     }
976 }
977 
978 static void ppc4xx_dma_reset(void *opaque)
979 {
980     PPC4xxDmaState *dma = opaque;
981     int dma_base = dma->base;
982 
983     memset(dma, 0, sizeof(*dma));
984     dma->base = dma_base;
985 }
986 
987 void ppc4xx_dma_init(CPUPPCState *env, int dcr_base)
988 {
989     PPC4xxDmaState *dma;
990     int i;
991 
992     dma = g_malloc0(sizeof(*dma));
993     dma->base = dcr_base;
994     qemu_register_reset(&ppc4xx_dma_reset, dma);
995     for (i = 0; i < 4; i++) {
996         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_CR,
997                          dma, &dcr_read_dma, &dcr_write_dma);
998         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_CT,
999                          dma, &dcr_read_dma, &dcr_write_dma);
1000         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SAH,
1001                          dma, &dcr_read_dma, &dcr_write_dma);
1002         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SAL,
1003                          dma, &dcr_read_dma, &dcr_write_dma);
1004         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_DAH,
1005                          dma, &dcr_read_dma, &dcr_write_dma);
1006         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_DAL,
1007                          dma, &dcr_read_dma, &dcr_write_dma);
1008         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SGH,
1009                          dma, &dcr_read_dma, &dcr_write_dma);
1010         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SGL,
1011                          dma, &dcr_read_dma, &dcr_write_dma);
1012     }
1013     ppc_dcr_register(env, dcr_base + DMA0_SR,
1014                      dma, &dcr_read_dma, &dcr_write_dma);
1015     ppc_dcr_register(env, dcr_base + DMA0_SGC,
1016                      dma, &dcr_read_dma, &dcr_write_dma);
1017     ppc_dcr_register(env, dcr_base + DMA0_SLP,
1018                      dma, &dcr_read_dma, &dcr_write_dma);
1019     ppc_dcr_register(env, dcr_base + DMA0_POL,
1020                      dma, &dcr_read_dma, &dcr_write_dma);
1021 }
1022 
1023 /*****************************************************************************/
1024 /* PCI Express controller */
1025 /* FIXME: This is not complete and does not work, only implemented partially
1026  * to allow firmware and guests to find an empty bus. Cards should use PCI.
1027  */
1028 #include "hw/pci/pcie_host.h"
1029 
1030 #define TYPE_PPC460EX_PCIE_HOST "ppc460ex-pcie-host"
1031 #define PPC460EX_PCIE_HOST(obj) \
1032     OBJECT_CHECK(PPC460EXPCIEState, (obj), TYPE_PPC460EX_PCIE_HOST)
1033 
1034 typedef struct PPC460EXPCIEState {
1035     PCIExpressHost host;
1036 
1037     MemoryRegion iomem;
1038     qemu_irq irq[4];
1039     int32_t dcrn_base;
1040 
1041     uint64_t cfg_base;
1042     uint32_t cfg_mask;
1043     uint64_t msg_base;
1044     uint32_t msg_mask;
1045     uint64_t omr1_base;
1046     uint64_t omr1_mask;
1047     uint64_t omr2_base;
1048     uint64_t omr2_mask;
1049     uint64_t omr3_base;
1050     uint64_t omr3_mask;
1051     uint64_t reg_base;
1052     uint32_t reg_mask;
1053     uint32_t special;
1054     uint32_t cfg;
1055 } PPC460EXPCIEState;
1056 
1057 #define DCRN_PCIE0_BASE 0x100
1058 #define DCRN_PCIE1_BASE 0x120
1059 
1060 enum {
1061     PEGPL_CFGBAH = 0x0,
1062     PEGPL_CFGBAL,
1063     PEGPL_CFGMSK,
1064     PEGPL_MSGBAH,
1065     PEGPL_MSGBAL,
1066     PEGPL_MSGMSK,
1067     PEGPL_OMR1BAH,
1068     PEGPL_OMR1BAL,
1069     PEGPL_OMR1MSKH,
1070     PEGPL_OMR1MSKL,
1071     PEGPL_OMR2BAH,
1072     PEGPL_OMR2BAL,
1073     PEGPL_OMR2MSKH,
1074     PEGPL_OMR2MSKL,
1075     PEGPL_OMR3BAH,
1076     PEGPL_OMR3BAL,
1077     PEGPL_OMR3MSKH,
1078     PEGPL_OMR3MSKL,
1079     PEGPL_REGBAH,
1080     PEGPL_REGBAL,
1081     PEGPL_REGMSK,
1082     PEGPL_SPECIAL,
1083     PEGPL_CFG,
1084 };
1085 
1086 static uint32_t dcr_read_pcie(void *opaque, int dcrn)
1087 {
1088     PPC460EXPCIEState *state = opaque;
1089     uint32_t ret = 0;
1090 
1091     switch (dcrn - state->dcrn_base) {
1092     case PEGPL_CFGBAH:
1093         ret = state->cfg_base >> 32;
1094         break;
1095     case PEGPL_CFGBAL:
1096         ret = state->cfg_base;
1097         break;
1098     case PEGPL_CFGMSK:
1099         ret = state->cfg_mask;
1100         break;
1101     case PEGPL_MSGBAH:
1102         ret = state->msg_base >> 32;
1103         break;
1104     case PEGPL_MSGBAL:
1105         ret = state->msg_base;
1106         break;
1107     case PEGPL_MSGMSK:
1108         ret = state->msg_mask;
1109         break;
1110     case PEGPL_OMR1BAH:
1111         ret = state->omr1_base >> 32;
1112         break;
1113     case PEGPL_OMR1BAL:
1114         ret = state->omr1_base;
1115         break;
1116     case PEGPL_OMR1MSKH:
1117         ret = state->omr1_mask >> 32;
1118         break;
1119     case PEGPL_OMR1MSKL:
1120         ret = state->omr1_mask;
1121         break;
1122     case PEGPL_OMR2BAH:
1123         ret = state->omr2_base >> 32;
1124         break;
1125     case PEGPL_OMR2BAL:
1126         ret = state->omr2_base;
1127         break;
1128     case PEGPL_OMR2MSKH:
1129         ret = state->omr2_mask >> 32;
1130         break;
1131     case PEGPL_OMR2MSKL:
1132         ret = state->omr3_mask;
1133         break;
1134     case PEGPL_OMR3BAH:
1135         ret = state->omr3_base >> 32;
1136         break;
1137     case PEGPL_OMR3BAL:
1138         ret = state->omr3_base;
1139         break;
1140     case PEGPL_OMR3MSKH:
1141         ret = state->omr3_mask >> 32;
1142         break;
1143     case PEGPL_OMR3MSKL:
1144         ret = state->omr3_mask;
1145         break;
1146     case PEGPL_REGBAH:
1147         ret = state->reg_base >> 32;
1148         break;
1149     case PEGPL_REGBAL:
1150         ret = state->reg_base;
1151         break;
1152     case PEGPL_REGMSK:
1153         ret = state->reg_mask;
1154         break;
1155     case PEGPL_SPECIAL:
1156         ret = state->special;
1157         break;
1158     case PEGPL_CFG:
1159         ret = state->cfg;
1160         break;
1161     }
1162 
1163     return ret;
1164 }
1165 
1166 static void dcr_write_pcie(void *opaque, int dcrn, uint32_t val)
1167 {
1168     PPC460EXPCIEState *s = opaque;
1169     uint64_t size;
1170 
1171     switch (dcrn - s->dcrn_base) {
1172     case PEGPL_CFGBAH:
1173         s->cfg_base = ((uint64_t)val << 32) | (s->cfg_base & 0xffffffff);
1174         break;
1175     case PEGPL_CFGBAL:
1176         s->cfg_base = (s->cfg_base & 0xffffffff00000000ULL) | val;
1177         break;
1178     case PEGPL_CFGMSK:
1179         s->cfg_mask = val;
1180         size = ~(val & 0xfffffffe) + 1;
1181         qemu_mutex_lock_iothread();
1182         pcie_host_mmcfg_update(PCIE_HOST_BRIDGE(s), val & 1, s->cfg_base, size);
1183         qemu_mutex_unlock_iothread();
1184         break;
1185     case PEGPL_MSGBAH:
1186         s->msg_base = ((uint64_t)val << 32) | (s->msg_base & 0xffffffff);
1187         break;
1188     case PEGPL_MSGBAL:
1189         s->msg_base = (s->msg_base & 0xffffffff00000000ULL) | val;
1190         break;
1191     case PEGPL_MSGMSK:
1192         s->msg_mask = val;
1193         break;
1194     case PEGPL_OMR1BAH:
1195         s->omr1_base = ((uint64_t)val << 32) | (s->omr1_base & 0xffffffff);
1196         break;
1197     case PEGPL_OMR1BAL:
1198         s->omr1_base = (s->omr1_base & 0xffffffff00000000ULL) | val;
1199         break;
1200     case PEGPL_OMR1MSKH:
1201         s->omr1_mask = ((uint64_t)val << 32) | (s->omr1_mask & 0xffffffff);
1202         break;
1203     case PEGPL_OMR1MSKL:
1204         s->omr1_mask = (s->omr1_mask & 0xffffffff00000000ULL) | val;
1205         break;
1206     case PEGPL_OMR2BAH:
1207         s->omr2_base = ((uint64_t)val << 32) | (s->omr2_base & 0xffffffff);
1208         break;
1209     case PEGPL_OMR2BAL:
1210         s->omr2_base = (s->omr2_base & 0xffffffff00000000ULL) | val;
1211         break;
1212     case PEGPL_OMR2MSKH:
1213         s->omr2_mask = ((uint64_t)val << 32) | (s->omr2_mask & 0xffffffff);
1214         break;
1215     case PEGPL_OMR2MSKL:
1216         s->omr2_mask = (s->omr2_mask & 0xffffffff00000000ULL) | val;
1217         break;
1218     case PEGPL_OMR3BAH:
1219         s->omr3_base = ((uint64_t)val << 32) | (s->omr3_base & 0xffffffff);
1220         break;
1221     case PEGPL_OMR3BAL:
1222         s->omr3_base = (s->omr3_base & 0xffffffff00000000ULL) | val;
1223         break;
1224     case PEGPL_OMR3MSKH:
1225         s->omr3_mask = ((uint64_t)val << 32) | (s->omr3_mask & 0xffffffff);
1226         break;
1227     case PEGPL_OMR3MSKL:
1228         s->omr3_mask = (s->omr3_mask & 0xffffffff00000000ULL) | val;
1229         break;
1230     case PEGPL_REGBAH:
1231         s->reg_base = ((uint64_t)val << 32) | (s->reg_base & 0xffffffff);
1232         break;
1233     case PEGPL_REGBAL:
1234         s->reg_base = (s->reg_base & 0xffffffff00000000ULL) | val;
1235         break;
1236     case PEGPL_REGMSK:
1237         s->reg_mask = val;
1238         /* FIXME: how is size encoded? */
1239         size = (val == 0x7001 ? 4096 : ~(val & 0xfffffffe) + 1);
1240         break;
1241     case PEGPL_SPECIAL:
1242         s->special = val;
1243         break;
1244     case PEGPL_CFG:
1245         s->cfg = val;
1246         break;
1247     }
1248 }
1249 
1250 static void ppc460ex_set_irq(void *opaque, int irq_num, int level)
1251 {
1252        PPC460EXPCIEState *s = opaque;
1253        qemu_set_irq(s->irq[irq_num], level);
1254 }
1255 
1256 static void ppc460ex_pcie_realize(DeviceState *dev, Error **errp)
1257 {
1258     PPC460EXPCIEState *s = PPC460EX_PCIE_HOST(dev);
1259     PCIHostState *pci = PCI_HOST_BRIDGE(dev);
1260     int i, id;
1261     char buf[16];
1262 
1263     switch (s->dcrn_base) {
1264     case DCRN_PCIE0_BASE:
1265         id = 0;
1266         break;
1267     case DCRN_PCIE1_BASE:
1268         id = 1;
1269         break;
1270     default:
1271         error_setg(errp, "invalid PCIe DCRN base");
1272         return;
1273     }
1274     snprintf(buf, sizeof(buf), "pcie%d-io", id);
1275     memory_region_init(&s->iomem, OBJECT(s), buf, UINT64_MAX);
1276     for (i = 0; i < 4; i++) {
1277         sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq[i]);
1278     }
1279     snprintf(buf, sizeof(buf), "pcie.%d", id);
1280     pci->bus = pci_register_root_bus(DEVICE(s), buf, ppc460ex_set_irq,
1281                                 pci_swizzle_map_irq_fn, s, &s->iomem,
1282                                 get_system_io(), 0, 4, TYPE_PCIE_BUS);
1283 }
1284 
1285 static Property ppc460ex_pcie_props[] = {
1286     DEFINE_PROP_INT32("dcrn-base", PPC460EXPCIEState, dcrn_base, -1),
1287     DEFINE_PROP_END_OF_LIST(),
1288 };
1289 
1290 static void ppc460ex_pcie_class_init(ObjectClass *klass, void *data)
1291 {
1292     DeviceClass *dc = DEVICE_CLASS(klass);
1293 
1294     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
1295     dc->realize = ppc460ex_pcie_realize;
1296     dc->props = ppc460ex_pcie_props;
1297     dc->hotpluggable = false;
1298 }
1299 
1300 static const TypeInfo ppc460ex_pcie_host_info = {
1301     .name = TYPE_PPC460EX_PCIE_HOST,
1302     .parent = TYPE_PCIE_HOST_BRIDGE,
1303     .instance_size = sizeof(PPC460EXPCIEState),
1304     .class_init = ppc460ex_pcie_class_init,
1305 };
1306 
1307 static void ppc460ex_pcie_register(void)
1308 {
1309     type_register_static(&ppc460ex_pcie_host_info);
1310 }
1311 
1312 type_init(ppc460ex_pcie_register)
1313 
1314 static void ppc460ex_pcie_register_dcrs(PPC460EXPCIEState *s, CPUPPCState *env)
1315 {
1316     ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGBAH, s,
1317                      &dcr_read_pcie, &dcr_write_pcie);
1318     ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGBAL, s,
1319                      &dcr_read_pcie, &dcr_write_pcie);
1320     ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGMSK, s,
1321                      &dcr_read_pcie, &dcr_write_pcie);
1322     ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGBAH, s,
1323                      &dcr_read_pcie, &dcr_write_pcie);
1324     ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGBAL, s,
1325                      &dcr_read_pcie, &dcr_write_pcie);
1326     ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGMSK, s,
1327                      &dcr_read_pcie, &dcr_write_pcie);
1328     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1BAH, s,
1329                      &dcr_read_pcie, &dcr_write_pcie);
1330     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1BAL, s,
1331                      &dcr_read_pcie, &dcr_write_pcie);
1332     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1MSKH, s,
1333                      &dcr_read_pcie, &dcr_write_pcie);
1334     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1MSKL, s,
1335                      &dcr_read_pcie, &dcr_write_pcie);
1336     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2BAH, s,
1337                      &dcr_read_pcie, &dcr_write_pcie);
1338     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2BAL, s,
1339                      &dcr_read_pcie, &dcr_write_pcie);
1340     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2MSKH, s,
1341                      &dcr_read_pcie, &dcr_write_pcie);
1342     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2MSKL, s,
1343                      &dcr_read_pcie, &dcr_write_pcie);
1344     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3BAH, s,
1345                      &dcr_read_pcie, &dcr_write_pcie);
1346     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3BAL, s,
1347                      &dcr_read_pcie, &dcr_write_pcie);
1348     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3MSKH, s,
1349                      &dcr_read_pcie, &dcr_write_pcie);
1350     ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3MSKL, s,
1351                      &dcr_read_pcie, &dcr_write_pcie);
1352     ppc_dcr_register(env, s->dcrn_base + PEGPL_REGBAH, s,
1353                      &dcr_read_pcie, &dcr_write_pcie);
1354     ppc_dcr_register(env, s->dcrn_base + PEGPL_REGBAL, s,
1355                      &dcr_read_pcie, &dcr_write_pcie);
1356     ppc_dcr_register(env, s->dcrn_base + PEGPL_REGMSK, s,
1357                      &dcr_read_pcie, &dcr_write_pcie);
1358     ppc_dcr_register(env, s->dcrn_base + PEGPL_SPECIAL, s,
1359                      &dcr_read_pcie, &dcr_write_pcie);
1360     ppc_dcr_register(env, s->dcrn_base + PEGPL_CFG, s,
1361                      &dcr_read_pcie, &dcr_write_pcie);
1362 }
1363 
1364 void ppc460ex_pcie_init(CPUPPCState *env)
1365 {
1366     DeviceState *dev;
1367 
1368     dev = qdev_create(NULL, TYPE_PPC460EX_PCIE_HOST);
1369     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE0_BASE);
1370     qdev_init_nofail(dev);
1371     object_property_set_bool(OBJECT(dev), true, "realized", NULL);
1372     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
1373 
1374     dev = qdev_create(NULL, TYPE_PPC460EX_PCIE_HOST);
1375     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE1_BASE);
1376     qdev_init_nofail(dev);
1377     object_property_set_bool(OBJECT(dev), true, "realized", NULL);
1378     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
1379 }
1380