xref: /openbmc/qemu/hw/ppc/ppc440_uc.c (revision 40f23e4e)
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/error-report.h"
14 #include "qapi/error.h"
15 #include "qemu/log.h"
16 #include "qemu/module.h"
17 #include "hw/irq.h"
18 #include "exec/memory.h"
19 #include "hw/ppc/ppc.h"
20 #include "hw/qdev-properties.h"
21 #include "hw/pci/pci.h"
22 #include "sysemu/block-backend.h"
23 #include "sysemu/reset.h"
24 #include "ppc440.h"
25 #include "qom/object.h"
26 
27 /*****************************************************************************/
28 /* L2 Cache as SRAM */
29 /* FIXME:fix names */
30 enum {
31     DCR_L2CACHE_BASE  = 0x30,
32     DCR_L2CACHE_CFG   = DCR_L2CACHE_BASE,
33     DCR_L2CACHE_CMD,
34     DCR_L2CACHE_ADDR,
35     DCR_L2CACHE_DATA,
36     DCR_L2CACHE_STAT,
37     DCR_L2CACHE_CVER,
38     DCR_L2CACHE_SNP0,
39     DCR_L2CACHE_SNP1,
40     DCR_L2CACHE_END   = DCR_L2CACHE_SNP1,
41 };
42 
43 /* base is 460ex-specific, cf. U-Boot, ppc4xx-isram.h */
44 enum {
45     DCR_ISRAM0_BASE   = 0x20,
46     DCR_ISRAM0_SB0CR  = DCR_ISRAM0_BASE,
47     DCR_ISRAM0_SB1CR,
48     DCR_ISRAM0_SB2CR,
49     DCR_ISRAM0_SB3CR,
50     DCR_ISRAM0_BEAR,
51     DCR_ISRAM0_BESR0,
52     DCR_ISRAM0_BESR1,
53     DCR_ISRAM0_PMEG,
54     DCR_ISRAM0_CID,
55     DCR_ISRAM0_REVID,
56     DCR_ISRAM0_DPC,
57     DCR_ISRAM0_END    = DCR_ISRAM0_DPC
58 };
59 
60 enum {
61     DCR_ISRAM1_BASE   = 0xb0,
62     DCR_ISRAM1_SB0CR  = DCR_ISRAM1_BASE,
63     /* single bank */
64     DCR_ISRAM1_BEAR   = DCR_ISRAM1_BASE + 0x04,
65     DCR_ISRAM1_BESR0,
66     DCR_ISRAM1_BESR1,
67     DCR_ISRAM1_PMEG,
68     DCR_ISRAM1_CID,
69     DCR_ISRAM1_REVID,
70     DCR_ISRAM1_DPC,
71     DCR_ISRAM1_END    = DCR_ISRAM1_DPC
72 };
73 
74 typedef struct ppc4xx_l2sram_t {
75     MemoryRegion bank[4];
76     uint32_t l2cache[8];
77     uint32_t isram0[11];
78 } ppc4xx_l2sram_t;
79 
80 #ifdef MAP_L2SRAM
81 static void l2sram_update_mappings(ppc4xx_l2sram_t *l2sram,
82                                    uint32_t isarc, uint32_t isacntl,
83                                    uint32_t dsarc, uint32_t dsacntl)
84 {
85     if (l2sram->isarc != isarc ||
86         (l2sram->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
87         if (l2sram->isacntl & 0x80000000) {
88             /* Unmap previously assigned memory region */
89             memory_region_del_subregion(get_system_memory(),
90                                         &l2sram->isarc_ram);
91         }
92         if (isacntl & 0x80000000) {
93             /* Map new instruction memory region */
94             memory_region_add_subregion(get_system_memory(), isarc,
95                                         &l2sram->isarc_ram);
96         }
97     }
98     if (l2sram->dsarc != dsarc ||
99         (l2sram->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
100         if (l2sram->dsacntl & 0x80000000) {
101             /* Beware not to unmap the region we just mapped */
102             if (!(isacntl & 0x80000000) || l2sram->dsarc != isarc) {
103                 /* Unmap previously assigned memory region */
104                 memory_region_del_subregion(get_system_memory(),
105                                             &l2sram->dsarc_ram);
106             }
107         }
108         if (dsacntl & 0x80000000) {
109             /* Beware not to remap the region we just mapped */
110             if (!(isacntl & 0x80000000) || dsarc != isarc) {
111                 /* Map new data memory region */
112                 memory_region_add_subregion(get_system_memory(), dsarc,
113                                             &l2sram->dsarc_ram);
114             }
115         }
116     }
117 }
118 #endif
119 
120 static uint32_t dcr_read_l2sram(void *opaque, int dcrn)
121 {
122     ppc4xx_l2sram_t *l2sram = opaque;
123     uint32_t ret = 0;
124 
125     switch (dcrn) {
126     case DCR_L2CACHE_CFG:
127     case DCR_L2CACHE_CMD:
128     case DCR_L2CACHE_ADDR:
129     case DCR_L2CACHE_DATA:
130     case DCR_L2CACHE_STAT:
131     case DCR_L2CACHE_CVER:
132     case DCR_L2CACHE_SNP0:
133     case DCR_L2CACHE_SNP1:
134         ret = l2sram->l2cache[dcrn - DCR_L2CACHE_BASE];
135         break;
136 
137     case DCR_ISRAM0_SB0CR:
138     case DCR_ISRAM0_SB1CR:
139     case DCR_ISRAM0_SB2CR:
140     case DCR_ISRAM0_SB3CR:
141     case DCR_ISRAM0_BEAR:
142     case DCR_ISRAM0_BESR0:
143     case DCR_ISRAM0_BESR1:
144     case DCR_ISRAM0_PMEG:
145     case DCR_ISRAM0_CID:
146     case DCR_ISRAM0_REVID:
147     case DCR_ISRAM0_DPC:
148         ret = l2sram->isram0[dcrn - DCR_ISRAM0_BASE];
149         break;
150 
151     default:
152         break;
153     }
154 
155     return ret;
156 }
157 
158 static void dcr_write_l2sram(void *opaque, int dcrn, uint32_t val)
159 {
160     /*ppc4xx_l2sram_t *l2sram = opaque;*/
161     /* FIXME: Actually handle L2 cache mapping */
162 
163     switch (dcrn) {
164     case DCR_L2CACHE_CFG:
165     case DCR_L2CACHE_CMD:
166     case DCR_L2CACHE_ADDR:
167     case DCR_L2CACHE_DATA:
168     case DCR_L2CACHE_STAT:
169     case DCR_L2CACHE_CVER:
170     case DCR_L2CACHE_SNP0:
171     case DCR_L2CACHE_SNP1:
172         /*l2sram->l2cache[dcrn - DCR_L2CACHE_BASE] = val;*/
173         break;
174 
175     case DCR_ISRAM0_SB0CR:
176     case DCR_ISRAM0_SB1CR:
177     case DCR_ISRAM0_SB2CR:
178     case DCR_ISRAM0_SB3CR:
179     case DCR_ISRAM0_BEAR:
180     case DCR_ISRAM0_BESR0:
181     case DCR_ISRAM0_BESR1:
182     case DCR_ISRAM0_PMEG:
183     case DCR_ISRAM0_CID:
184     case DCR_ISRAM0_REVID:
185     case DCR_ISRAM0_DPC:
186         /*l2sram->isram0[dcrn - DCR_L2CACHE_BASE] = val;*/
187         break;
188 
189     case DCR_ISRAM1_SB0CR:
190     case DCR_ISRAM1_BEAR:
191     case DCR_ISRAM1_BESR0:
192     case DCR_ISRAM1_BESR1:
193     case DCR_ISRAM1_PMEG:
194     case DCR_ISRAM1_CID:
195     case DCR_ISRAM1_REVID:
196     case DCR_ISRAM1_DPC:
197         /*l2sram->isram1[dcrn - DCR_L2CACHE_BASE] = val;*/
198         break;
199     }
200     /*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/
201 }
202 
203 static void l2sram_reset(void *opaque)
204 {
205     ppc4xx_l2sram_t *l2sram = opaque;
206 
207     memset(l2sram->l2cache, 0, sizeof(l2sram->l2cache));
208     l2sram->l2cache[DCR_L2CACHE_STAT - DCR_L2CACHE_BASE] = 0x80000000;
209     memset(l2sram->isram0, 0, sizeof(l2sram->isram0));
210     /*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/
211 }
212 
213 void ppc4xx_l2sram_init(CPUPPCState *env)
214 {
215     ppc4xx_l2sram_t *l2sram;
216 
217     l2sram = g_malloc0(sizeof(*l2sram));
218     /* XXX: Size is 4*64kB for 460ex, cf. U-Boot, ppc4xx-isram.h */
219     memory_region_init_ram(&l2sram->bank[0], NULL, "ppc4xx.l2sram_bank0",
220                            64 * KiB, &error_abort);
221     memory_region_init_ram(&l2sram->bank[1], NULL, "ppc4xx.l2sram_bank1",
222                            64 * KiB, &error_abort);
223     memory_region_init_ram(&l2sram->bank[2], NULL, "ppc4xx.l2sram_bank2",
224                            64 * KiB, &error_abort);
225     memory_region_init_ram(&l2sram->bank[3], NULL, "ppc4xx.l2sram_bank3",
226                            64 * KiB, &error_abort);
227     qemu_register_reset(&l2sram_reset, l2sram);
228     ppc_dcr_register(env, DCR_L2CACHE_CFG,
229                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
230     ppc_dcr_register(env, DCR_L2CACHE_CMD,
231                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
232     ppc_dcr_register(env, DCR_L2CACHE_ADDR,
233                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
234     ppc_dcr_register(env, DCR_L2CACHE_DATA,
235                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
236     ppc_dcr_register(env, DCR_L2CACHE_STAT,
237                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
238     ppc_dcr_register(env, DCR_L2CACHE_CVER,
239                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
240     ppc_dcr_register(env, DCR_L2CACHE_SNP0,
241                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
242     ppc_dcr_register(env, DCR_L2CACHE_SNP1,
243                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
244 
245     ppc_dcr_register(env, DCR_ISRAM0_SB0CR,
246                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
247     ppc_dcr_register(env, DCR_ISRAM0_SB1CR,
248                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
249     ppc_dcr_register(env, DCR_ISRAM0_SB2CR,
250                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
251     ppc_dcr_register(env, DCR_ISRAM0_SB3CR,
252                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
253     ppc_dcr_register(env, DCR_ISRAM0_PMEG,
254                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
255     ppc_dcr_register(env, DCR_ISRAM0_DPC,
256                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
257 
258     ppc_dcr_register(env, DCR_ISRAM1_SB0CR,
259                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
260     ppc_dcr_register(env, DCR_ISRAM1_PMEG,
261                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
262     ppc_dcr_register(env, DCR_ISRAM1_DPC,
263                      l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
264 }
265 
266 /*****************************************************************************/
267 /* Clocking Power on Reset */
268 enum {
269     CPR0_CFGADDR = 0xC,
270     CPR0_CFGDATA = 0xD,
271 
272     CPR0_PLLD = 0x060,
273     CPR0_PLBED = 0x080,
274     CPR0_OPBD = 0x0C0,
275     CPR0_PERD = 0x0E0,
276     CPR0_AHBD = 0x100,
277 };
278 
279 typedef struct ppc4xx_cpr_t {
280     uint32_t addr;
281 } ppc4xx_cpr_t;
282 
283 static uint32_t dcr_read_cpr(void *opaque, int dcrn)
284 {
285     ppc4xx_cpr_t *cpr = opaque;
286     uint32_t ret = 0;
287 
288     switch (dcrn) {
289     case CPR0_CFGADDR:
290         ret = cpr->addr;
291         break;
292     case CPR0_CFGDATA:
293         switch (cpr->addr) {
294         case CPR0_PLLD:
295             ret = (0xb5 << 24) | (1 << 16) | (9 << 8);
296             break;
297         case CPR0_PLBED:
298             ret = (5 << 24);
299             break;
300         case CPR0_OPBD:
301             ret = (2 << 24);
302             break;
303         case CPR0_PERD:
304         case CPR0_AHBD:
305             ret = (1 << 24);
306             break;
307         default:
308             break;
309         }
310         break;
311     default:
312         break;
313     }
314 
315     return ret;
316 }
317 
318 static void dcr_write_cpr(void *opaque, int dcrn, uint32_t val)
319 {
320     ppc4xx_cpr_t *cpr = opaque;
321 
322     switch (dcrn) {
323     case CPR0_CFGADDR:
324         cpr->addr = val;
325         break;
326     case CPR0_CFGDATA:
327         break;
328     default:
329         break;
330     }
331 }
332 
333 static void ppc4xx_cpr_reset(void *opaque)
334 {
335     ppc4xx_cpr_t *cpr = opaque;
336 
337     cpr->addr = 0;
338 }
339 
340 void ppc4xx_cpr_init(CPUPPCState *env)
341 {
342     ppc4xx_cpr_t *cpr;
343 
344     cpr = g_malloc0(sizeof(*cpr));
345     ppc_dcr_register(env, CPR0_CFGADDR, cpr, &dcr_read_cpr, &dcr_write_cpr);
346     ppc_dcr_register(env, CPR0_CFGDATA, cpr, &dcr_read_cpr, &dcr_write_cpr);
347     qemu_register_reset(ppc4xx_cpr_reset, cpr);
348 }
349 
350 /*****************************************************************************/
351 /* System DCRs */
352 typedef struct ppc4xx_sdr_t ppc4xx_sdr_t;
353 struct ppc4xx_sdr_t {
354     uint32_t addr;
355 };
356 
357 enum {
358     SDR0_CFGADDR = 0x00e,
359     SDR0_CFGDATA,
360     SDR0_STRP0 = 0x020,
361     SDR0_STRP1,
362     SDR0_102 = 0x66,
363     SDR0_103,
364     SDR0_128 = 0x80,
365     SDR0_ECID3 = 0x083,
366     SDR0_DDR0 = 0x0e1,
367     SDR0_USB0 = 0x320,
368 };
369 
370 enum {
371     PESDR0_LOOP = 0x303,
372     PESDR0_RCSSET,
373     PESDR0_RCSSTS,
374     PESDR0_RSTSTA = 0x310,
375     PESDR1_LOOP = 0x343,
376     PESDR1_RCSSET,
377     PESDR1_RCSSTS,
378     PESDR1_RSTSTA = 0x365,
379 };
380 
381 #define SDR0_DDR0_DDRM_ENCODE(n)  ((((unsigned long)(n)) & 0x03) << 29)
382 #define SDR0_DDR0_DDRM_DDR1       0x20000000
383 #define SDR0_DDR0_DDRM_DDR2       0x40000000
384 
385 static uint32_t dcr_read_sdr(void *opaque, int dcrn)
386 {
387     ppc4xx_sdr_t *sdr = opaque;
388     uint32_t ret = 0;
389 
390     switch (dcrn) {
391     case SDR0_CFGADDR:
392         ret = sdr->addr;
393         break;
394     case SDR0_CFGDATA:
395         switch (sdr->addr) {
396         case SDR0_STRP0:
397             ret = (0xb5 << 8) | (1 << 4) | 9;
398             break;
399         case SDR0_STRP1:
400             ret = (5 << 29) | (2 << 26) | (1 << 24);
401             break;
402         case SDR0_ECID3:
403             ret = 1 << 20; /* No Security/Kasumi support */
404             break;
405         case SDR0_DDR0:
406             ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1;
407             break;
408         case PESDR0_RCSSET:
409         case PESDR1_RCSSET:
410             ret = (1 << 24) | (1 << 16);
411             break;
412         case PESDR0_RCSSTS:
413         case PESDR1_RCSSTS:
414             ret = (1 << 16) | (1 << 12);
415             break;
416         case PESDR0_RSTSTA:
417         case PESDR1_RSTSTA:
418             ret = 1;
419             break;
420         case PESDR0_LOOP:
421         case PESDR1_LOOP:
422             ret = 1 << 12;
423             break;
424         default:
425             break;
426         }
427         break;
428     default:
429         break;
430     }
431 
432     return ret;
433 }
434 
435 static void dcr_write_sdr(void *opaque, int dcrn, uint32_t val)
436 {
437     ppc4xx_sdr_t *sdr = opaque;
438 
439     switch (dcrn) {
440     case SDR0_CFGADDR:
441         sdr->addr = val;
442         break;
443     case SDR0_CFGDATA:
444         switch (sdr->addr) {
445         case 0x00: /* B0CR */
446             break;
447         default:
448             break;
449         }
450         break;
451     default:
452         break;
453     }
454 }
455 
456 static void sdr_reset(void *opaque)
457 {
458     ppc4xx_sdr_t *sdr = opaque;
459 
460     sdr->addr = 0;
461 }
462 
463 void ppc4xx_sdr_init(CPUPPCState *env)
464 {
465     ppc4xx_sdr_t *sdr;
466 
467     sdr = g_malloc0(sizeof(*sdr));
468     qemu_register_reset(&sdr_reset, sdr);
469     ppc_dcr_register(env, SDR0_CFGADDR,
470                      sdr, &dcr_read_sdr, &dcr_write_sdr);
471     ppc_dcr_register(env, SDR0_CFGDATA,
472                      sdr, &dcr_read_sdr, &dcr_write_sdr);
473     ppc_dcr_register(env, SDR0_102,
474                      sdr, &dcr_read_sdr, &dcr_write_sdr);
475     ppc_dcr_register(env, SDR0_103,
476                      sdr, &dcr_read_sdr, &dcr_write_sdr);
477     ppc_dcr_register(env, SDR0_128,
478                      sdr, &dcr_read_sdr, &dcr_write_sdr);
479     ppc_dcr_register(env, SDR0_USB0,
480                      sdr, &dcr_read_sdr, &dcr_write_sdr);
481 }
482 
483 /*****************************************************************************/
484 /* SDRAM controller */
485 typedef struct ppc440_sdram_t {
486     uint32_t addr;
487     int nbanks;
488     MemoryRegion containers[4]; /* used for clipping */
489     MemoryRegion *ram_memories;
490     hwaddr ram_bases[4];
491     hwaddr ram_sizes[4];
492     uint32_t bcr[4];
493 } ppc440_sdram_t;
494 
495 enum {
496     SDRAM0_CFGADDR = 0x10,
497     SDRAM0_CFGDATA,
498     SDRAM_R0BAS = 0x40,
499     SDRAM_R1BAS,
500     SDRAM_R2BAS,
501     SDRAM_R3BAS,
502     SDRAM_CONF1HB = 0x45,
503     SDRAM_PLBADDULL = 0x4a,
504     SDRAM_CONF1LL = 0x4b,
505     SDRAM_CONFPATHB = 0x4f,
506     SDRAM_PLBADDUHB = 0x50,
507 };
508 
509 static uint32_t sdram_bcr(hwaddr ram_base, hwaddr ram_size)
510 {
511     uint32_t bcr;
512 
513     switch (ram_size) {
514     case (8 * MiB):
515         bcr = 0xffc0;
516         break;
517     case (16 * MiB):
518         bcr = 0xff80;
519         break;
520     case (32 * MiB):
521         bcr = 0xff00;
522         break;
523     case (64 * MiB):
524         bcr = 0xfe00;
525         break;
526     case (128 * MiB):
527         bcr = 0xfc00;
528         break;
529     case (256 * MiB):
530         bcr = 0xf800;
531         break;
532     case (512 * MiB):
533         bcr = 0xf000;
534         break;
535     case (1 * GiB):
536         bcr = 0xe000;
537         break;
538     case (2 * GiB):
539         bcr = 0xc000;
540         break;
541     case (4 * GiB):
542         bcr = 0x8000;
543         break;
544     default:
545         error_report("invalid RAM size " TARGET_FMT_plx, ram_size);
546         return 0;
547     }
548     bcr |= ram_base >> 2 & 0xffe00000;
549     bcr |= 1;
550 
551     return bcr;
552 }
553 
554 static inline hwaddr sdram_base(uint32_t bcr)
555 {
556     return (bcr & 0xffe00000) << 2;
557 }
558 
559 static uint64_t sdram_size(uint32_t bcr)
560 {
561     uint64_t size;
562     int sh;
563 
564     sh = 1024 - ((bcr >> 6) & 0x3ff);
565     size = 8 * MiB * sh;
566 
567     return size;
568 }
569 
570 static void sdram_set_bcr(ppc440_sdram_t *sdram, int i,
571                           uint32_t bcr, int enabled)
572 {
573     if (sdram->bcr[i] & 1) {
574         /* First unmap RAM if enabled */
575         memory_region_del_subregion(get_system_memory(),
576                                     &sdram->containers[i]);
577         memory_region_del_subregion(&sdram->containers[i],
578                                     &sdram->ram_memories[i]);
579         object_unparent(OBJECT(&sdram->containers[i]));
580     }
581     sdram->bcr[i] = bcr & 0xffe0ffc1;
582     if (enabled && (bcr & 1)) {
583         memory_region_init(&sdram->containers[i], NULL, "sdram-containers",
584                            sdram_size(bcr));
585         memory_region_add_subregion(&sdram->containers[i], 0,
586                                     &sdram->ram_memories[i]);
587         memory_region_add_subregion(get_system_memory(),
588                                     sdram_base(bcr),
589                                     &sdram->containers[i]);
590     }
591 }
592 
593 static void sdram_map_bcr(ppc440_sdram_t *sdram)
594 {
595     int i;
596 
597     for (i = 0; i < sdram->nbanks; i++) {
598         if (sdram->ram_sizes[i] != 0) {
599             sdram_set_bcr(sdram, i, sdram_bcr(sdram->ram_bases[i],
600                                               sdram->ram_sizes[i]), 1);
601         } else {
602             sdram_set_bcr(sdram, i, 0, 0);
603         }
604     }
605 }
606 
607 static uint32_t dcr_read_sdram(void *opaque, int dcrn)
608 {
609     ppc440_sdram_t *sdram = opaque;
610     uint32_t ret = 0;
611 
612     switch (dcrn) {
613     case SDRAM_R0BAS:
614     case SDRAM_R1BAS:
615     case SDRAM_R2BAS:
616     case SDRAM_R3BAS:
617         if (sdram->ram_sizes[dcrn - SDRAM_R0BAS]) {
618             ret = sdram_bcr(sdram->ram_bases[dcrn - SDRAM_R0BAS],
619                             sdram->ram_sizes[dcrn - SDRAM_R0BAS]);
620         }
621         break;
622     case SDRAM_CONF1HB:
623     case SDRAM_CONF1LL:
624     case SDRAM_CONFPATHB:
625     case SDRAM_PLBADDULL:
626     case SDRAM_PLBADDUHB:
627         break;
628     case SDRAM0_CFGADDR:
629         ret = sdram->addr;
630         break;
631     case SDRAM0_CFGDATA:
632         switch (sdram->addr) {
633         case 0x14: /* SDRAM_MCSTAT (405EX) */
634         case 0x1F:
635             ret = 0x80000000;
636             break;
637         case 0x21: /* SDRAM_MCOPT2 */
638             ret = 0x08000000;
639             break;
640         case 0x40: /* SDRAM_MB0CF */
641             ret = 0x00008001;
642             break;
643         case 0x7A: /* SDRAM_DLCR */
644             ret = 0x02000000;
645             break;
646         case 0xE1: /* SDR0_DDR0 */
647             ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1;
648             break;
649         default:
650             break;
651         }
652         break;
653     default:
654         break;
655     }
656 
657     return ret;
658 }
659 
660 static void dcr_write_sdram(void *opaque, int dcrn, uint32_t val)
661 {
662     ppc440_sdram_t *sdram = opaque;
663 
664     switch (dcrn) {
665     case SDRAM_R0BAS:
666     case SDRAM_R1BAS:
667     case SDRAM_R2BAS:
668     case SDRAM_R3BAS:
669     case SDRAM_CONF1HB:
670     case SDRAM_CONF1LL:
671     case SDRAM_CONFPATHB:
672     case SDRAM_PLBADDULL:
673     case SDRAM_PLBADDUHB:
674         break;
675     case SDRAM0_CFGADDR:
676         sdram->addr = val;
677         break;
678     case SDRAM0_CFGDATA:
679         switch (sdram->addr) {
680         case 0x00: /* B0CR */
681             break;
682         default:
683             break;
684         }
685         break;
686     default:
687         break;
688     }
689 }
690 
691 static void sdram_reset(void *opaque)
692 {
693     ppc440_sdram_t *sdram = opaque;
694 
695     sdram->addr = 0;
696 }
697 
698 void ppc440_sdram_init(CPUPPCState *env, int nbanks,
699                        MemoryRegion *ram_memories,
700                        hwaddr *ram_bases, hwaddr *ram_sizes,
701                        int do_init)
702 {
703     ppc440_sdram_t *sdram;
704 
705     sdram = g_malloc0(sizeof(*sdram));
706     sdram->nbanks = nbanks;
707     sdram->ram_memories = ram_memories;
708     memcpy(sdram->ram_bases, ram_bases, nbanks * sizeof(hwaddr));
709     memcpy(sdram->ram_sizes, ram_sizes, nbanks * sizeof(hwaddr));
710     qemu_register_reset(&sdram_reset, sdram);
711     ppc_dcr_register(env, SDRAM0_CFGADDR,
712                      sdram, &dcr_read_sdram, &dcr_write_sdram);
713     ppc_dcr_register(env, SDRAM0_CFGDATA,
714                      sdram, &dcr_read_sdram, &dcr_write_sdram);
715     if (do_init) {
716         sdram_map_bcr(sdram);
717     }
718 
719     ppc_dcr_register(env, SDRAM_R0BAS,
720                      sdram, &dcr_read_sdram, &dcr_write_sdram);
721     ppc_dcr_register(env, SDRAM_R1BAS,
722                      sdram, &dcr_read_sdram, &dcr_write_sdram);
723     ppc_dcr_register(env, SDRAM_R2BAS,
724                      sdram, &dcr_read_sdram, &dcr_write_sdram);
725     ppc_dcr_register(env, SDRAM_R3BAS,
726                      sdram, &dcr_read_sdram, &dcr_write_sdram);
727     ppc_dcr_register(env, SDRAM_CONF1HB,
728                      sdram, &dcr_read_sdram, &dcr_write_sdram);
729     ppc_dcr_register(env, SDRAM_PLBADDULL,
730                      sdram, &dcr_read_sdram, &dcr_write_sdram);
731     ppc_dcr_register(env, SDRAM_CONF1LL,
732                      sdram, &dcr_read_sdram, &dcr_write_sdram);
733     ppc_dcr_register(env, SDRAM_CONFPATHB,
734                      sdram, &dcr_read_sdram, &dcr_write_sdram);
735     ppc_dcr_register(env, SDRAM_PLBADDUHB,
736                      sdram, &dcr_read_sdram, &dcr_write_sdram);
737 }
738 
739 /*****************************************************************************/
740 /* PLB to AHB bridge */
741 enum {
742     AHB_TOP    = 0xA4,
743     AHB_BOT    = 0xA5,
744 };
745 
746 typedef struct ppc4xx_ahb_t {
747     uint32_t top;
748     uint32_t bot;
749 } ppc4xx_ahb_t;
750 
751 static uint32_t dcr_read_ahb(void *opaque, int dcrn)
752 {
753     ppc4xx_ahb_t *ahb = opaque;
754     uint32_t ret = 0;
755 
756     switch (dcrn) {
757     case AHB_TOP:
758         ret = ahb->top;
759         break;
760     case AHB_BOT:
761         ret = ahb->bot;
762         break;
763     default:
764         break;
765     }
766 
767     return ret;
768 }
769 
770 static void dcr_write_ahb(void *opaque, int dcrn, uint32_t val)
771 {
772     ppc4xx_ahb_t *ahb = opaque;
773 
774     switch (dcrn) {
775     case AHB_TOP:
776         ahb->top = val;
777         break;
778     case AHB_BOT:
779         ahb->bot = val;
780         break;
781     }
782 }
783 
784 static void ppc4xx_ahb_reset(void *opaque)
785 {
786     ppc4xx_ahb_t *ahb = opaque;
787 
788     /* No error */
789     ahb->top = 0;
790     ahb->bot = 0;
791 }
792 
793 void ppc4xx_ahb_init(CPUPPCState *env)
794 {
795     ppc4xx_ahb_t *ahb;
796 
797     ahb = g_malloc0(sizeof(*ahb));
798     ppc_dcr_register(env, AHB_TOP, ahb, &dcr_read_ahb, &dcr_write_ahb);
799     ppc_dcr_register(env, AHB_BOT, ahb, &dcr_read_ahb, &dcr_write_ahb);
800     qemu_register_reset(ppc4xx_ahb_reset, ahb);
801 }
802 
803 /*****************************************************************************/
804 /* DMA controller */
805 
806 #define DMA0_CR_CE  (1 << 31)
807 #define DMA0_CR_PW  (1 << 26 | 1 << 25)
808 #define DMA0_CR_DAI (1 << 24)
809 #define DMA0_CR_SAI (1 << 23)
810 #define DMA0_CR_DEC (1 << 2)
811 
812 enum {
813     DMA0_CR  = 0x00,
814     DMA0_CT,
815     DMA0_SAH,
816     DMA0_SAL,
817     DMA0_DAH,
818     DMA0_DAL,
819     DMA0_SGH,
820     DMA0_SGL,
821 
822     DMA0_SR  = 0x20,
823     DMA0_SGC = 0x23,
824     DMA0_SLP = 0x25,
825     DMA0_POL = 0x26,
826 };
827 
828 typedef struct {
829     uint32_t cr;
830     uint32_t ct;
831     uint64_t sa;
832     uint64_t da;
833     uint64_t sg;
834 } PPC4xxDmaChnl;
835 
836 typedef struct {
837     int base;
838     PPC4xxDmaChnl ch[4];
839     uint32_t sr;
840 } PPC4xxDmaState;
841 
842 static uint32_t dcr_read_dma(void *opaque, int dcrn)
843 {
844     PPC4xxDmaState *dma = opaque;
845     uint32_t val = 0;
846     int addr = dcrn - dma->base;
847     int chnl = addr / 8;
848 
849     switch (addr) {
850     case 0x00 ... 0x1f:
851         switch (addr % 8) {
852         case DMA0_CR:
853             val = dma->ch[chnl].cr;
854             break;
855         case DMA0_CT:
856             val = dma->ch[chnl].ct;
857             break;
858         case DMA0_SAH:
859             val = dma->ch[chnl].sa >> 32;
860             break;
861         case DMA0_SAL:
862             val = dma->ch[chnl].sa;
863             break;
864         case DMA0_DAH:
865             val = dma->ch[chnl].da >> 32;
866             break;
867         case DMA0_DAL:
868             val = dma->ch[chnl].da;
869             break;
870         case DMA0_SGH:
871             val = dma->ch[chnl].sg >> 32;
872             break;
873         case DMA0_SGL:
874             val = dma->ch[chnl].sg;
875             break;
876         }
877         break;
878     case DMA0_SR:
879         val = dma->sr;
880         break;
881     default:
882         qemu_log_mask(LOG_UNIMP, "%s: unimplemented register %x (%d, %x)\n",
883                       __func__, dcrn, chnl, addr);
884     }
885 
886     return val;
887 }
888 
889 static void dcr_write_dma(void *opaque, int dcrn, uint32_t val)
890 {
891     PPC4xxDmaState *dma = opaque;
892     int addr = dcrn - dma->base;
893     int chnl = addr / 8;
894 
895     switch (addr) {
896     case 0x00 ... 0x1f:
897         switch (addr % 8) {
898         case DMA0_CR:
899             dma->ch[chnl].cr = val;
900             if (val & DMA0_CR_CE) {
901                 int count = dma->ch[chnl].ct & 0xffff;
902 
903                 if (count) {
904                     int width, i, sidx, didx;
905                     uint8_t *rptr, *wptr;
906                     hwaddr rlen, wlen;
907 
908                     sidx = didx = 0;
909                     width = 1 << ((val & DMA0_CR_PW) >> 25);
910                     rptr = cpu_physical_memory_map(dma->ch[chnl].sa, &rlen,
911                                                    false);
912                     wptr = cpu_physical_memory_map(dma->ch[chnl].da, &wlen,
913                                                    true);
914                     if (rptr && wptr) {
915                         if (!(val & DMA0_CR_DEC) &&
916                             val & DMA0_CR_SAI && val & DMA0_CR_DAI) {
917                             /* optimise common case */
918                             memmove(wptr, rptr, count * width);
919                             sidx = didx = count * width;
920                         } else {
921                             /* do it the slow way */
922                             for (sidx = didx = i = 0; i < count; i++) {
923                                 uint64_t v = ldn_le_p(rptr + sidx, width);
924                                 stn_le_p(wptr + didx, width, v);
925                                 if (val & DMA0_CR_SAI) {
926                                     sidx += width;
927                                 }
928                                 if (val & DMA0_CR_DAI) {
929                                     didx += width;
930                                 }
931                             }
932                         }
933                     }
934                     if (wptr) {
935                         cpu_physical_memory_unmap(wptr, wlen, 1, didx);
936                     }
937                     if (rptr) {
938                         cpu_physical_memory_unmap(rptr, rlen, 0, sidx);
939                     }
940                 }
941             }
942             break;
943         case DMA0_CT:
944             dma->ch[chnl].ct = val;
945             break;
946         case DMA0_SAH:
947             dma->ch[chnl].sa &= 0xffffffffULL;
948             dma->ch[chnl].sa |= (uint64_t)val << 32;
949             break;
950         case DMA0_SAL:
951             dma->ch[chnl].sa &= 0xffffffff00000000ULL;
952             dma->ch[chnl].sa |= val;
953             break;
954         case DMA0_DAH:
955             dma->ch[chnl].da &= 0xffffffffULL;
956             dma->ch[chnl].da |= (uint64_t)val << 32;
957             break;
958         case DMA0_DAL:
959             dma->ch[chnl].da &= 0xffffffff00000000ULL;
960             dma->ch[chnl].da |= val;
961             break;
962         case DMA0_SGH:
963             dma->ch[chnl].sg &= 0xffffffffULL;
964             dma->ch[chnl].sg |= (uint64_t)val << 32;
965             break;
966         case DMA0_SGL:
967             dma->ch[chnl].sg &= 0xffffffff00000000ULL;
968             dma->ch[chnl].sg |= val;
969             break;
970         }
971         break;
972     case DMA0_SR:
973         dma->sr &= ~val;
974         break;
975     default:
976         qemu_log_mask(LOG_UNIMP, "%s: unimplemented register %x (%d, %x)\n",
977                       __func__, dcrn, chnl, addr);
978     }
979 }
980 
981 static void ppc4xx_dma_reset(void *opaque)
982 {
983     PPC4xxDmaState *dma = opaque;
984     int dma_base = dma->base;
985 
986     memset(dma, 0, sizeof(*dma));
987     dma->base = dma_base;
988 }
989 
990 void ppc4xx_dma_init(CPUPPCState *env, int dcr_base)
991 {
992     PPC4xxDmaState *dma;
993     int i;
994 
995     dma = g_malloc0(sizeof(*dma));
996     dma->base = dcr_base;
997     qemu_register_reset(&ppc4xx_dma_reset, dma);
998     for (i = 0; i < 4; i++) {
999         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_CR,
1000                          dma, &dcr_read_dma, &dcr_write_dma);
1001         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_CT,
1002                          dma, &dcr_read_dma, &dcr_write_dma);
1003         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SAH,
1004                          dma, &dcr_read_dma, &dcr_write_dma);
1005         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SAL,
1006                          dma, &dcr_read_dma, &dcr_write_dma);
1007         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_DAH,
1008                          dma, &dcr_read_dma, &dcr_write_dma);
1009         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_DAL,
1010                          dma, &dcr_read_dma, &dcr_write_dma);
1011         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SGH,
1012                          dma, &dcr_read_dma, &dcr_write_dma);
1013         ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SGL,
1014                          dma, &dcr_read_dma, &dcr_write_dma);
1015     }
1016     ppc_dcr_register(env, dcr_base + DMA0_SR,
1017                      dma, &dcr_read_dma, &dcr_write_dma);
1018     ppc_dcr_register(env, dcr_base + DMA0_SGC,
1019                      dma, &dcr_read_dma, &dcr_write_dma);
1020     ppc_dcr_register(env, dcr_base + DMA0_SLP,
1021                      dma, &dcr_read_dma, &dcr_write_dma);
1022     ppc_dcr_register(env, dcr_base + DMA0_POL,
1023                      dma, &dcr_read_dma, &dcr_write_dma);
1024 }
1025 
1026 /*****************************************************************************/
1027 /* PCI Express controller */
1028 /* FIXME: This is not complete and does not work, only implemented partially
1029  * to allow firmware and guests to find an empty bus. Cards should use PCI.
1030  */
1031 #include "hw/pci/pcie_host.h"
1032 
1033 #define TYPE_PPC460EX_PCIE_HOST "ppc460ex-pcie-host"
1034 OBJECT_DECLARE_SIMPLE_TYPE(PPC460EXPCIEState, PPC460EX_PCIE_HOST)
1035 
1036 struct PPC460EXPCIEState {
1037     PCIExpressHost host;
1038 
1039     MemoryRegion iomem;
1040     qemu_irq irq[4];
1041     int32_t dcrn_base;
1042 
1043     uint64_t cfg_base;
1044     uint32_t cfg_mask;
1045     uint64_t msg_base;
1046     uint32_t msg_mask;
1047     uint64_t omr1_base;
1048     uint64_t omr1_mask;
1049     uint64_t omr2_base;
1050     uint64_t omr2_mask;
1051     uint64_t omr3_base;
1052     uint64_t omr3_mask;
1053     uint64_t reg_base;
1054     uint32_t reg_mask;
1055     uint32_t special;
1056     uint32_t cfg;
1057 };
1058 
1059 #define DCRN_PCIE0_BASE 0x100
1060 #define DCRN_PCIE1_BASE 0x120
1061 
1062 enum {
1063     PEGPL_CFGBAH = 0x0,
1064     PEGPL_CFGBAL,
1065     PEGPL_CFGMSK,
1066     PEGPL_MSGBAH,
1067     PEGPL_MSGBAL,
1068     PEGPL_MSGMSK,
1069     PEGPL_OMR1BAH,
1070     PEGPL_OMR1BAL,
1071     PEGPL_OMR1MSKH,
1072     PEGPL_OMR1MSKL,
1073     PEGPL_OMR2BAH,
1074     PEGPL_OMR2BAL,
1075     PEGPL_OMR2MSKH,
1076     PEGPL_OMR2MSKL,
1077     PEGPL_OMR3BAH,
1078     PEGPL_OMR3BAL,
1079     PEGPL_OMR3MSKH,
1080     PEGPL_OMR3MSKL,
1081     PEGPL_REGBAH,
1082     PEGPL_REGBAL,
1083     PEGPL_REGMSK,
1084     PEGPL_SPECIAL,
1085     PEGPL_CFG,
1086 };
1087 
1088 static uint32_t dcr_read_pcie(void *opaque, int dcrn)
1089 {
1090     PPC460EXPCIEState *state = opaque;
1091     uint32_t ret = 0;
1092 
1093     switch (dcrn - state->dcrn_base) {
1094     case PEGPL_CFGBAH:
1095         ret = state->cfg_base >> 32;
1096         break;
1097     case PEGPL_CFGBAL:
1098         ret = state->cfg_base;
1099         break;
1100     case PEGPL_CFGMSK:
1101         ret = state->cfg_mask;
1102         break;
1103     case PEGPL_MSGBAH:
1104         ret = state->msg_base >> 32;
1105         break;
1106     case PEGPL_MSGBAL:
1107         ret = state->msg_base;
1108         break;
1109     case PEGPL_MSGMSK:
1110         ret = state->msg_mask;
1111         break;
1112     case PEGPL_OMR1BAH:
1113         ret = state->omr1_base >> 32;
1114         break;
1115     case PEGPL_OMR1BAL:
1116         ret = state->omr1_base;
1117         break;
1118     case PEGPL_OMR1MSKH:
1119         ret = state->omr1_mask >> 32;
1120         break;
1121     case PEGPL_OMR1MSKL:
1122         ret = state->omr1_mask;
1123         break;
1124     case PEGPL_OMR2BAH:
1125         ret = state->omr2_base >> 32;
1126         break;
1127     case PEGPL_OMR2BAL:
1128         ret = state->omr2_base;
1129         break;
1130     case PEGPL_OMR2MSKH:
1131         ret = state->omr2_mask >> 32;
1132         break;
1133     case PEGPL_OMR2MSKL:
1134         ret = state->omr3_mask;
1135         break;
1136     case PEGPL_OMR3BAH:
1137         ret = state->omr3_base >> 32;
1138         break;
1139     case PEGPL_OMR3BAL:
1140         ret = state->omr3_base;
1141         break;
1142     case PEGPL_OMR3MSKH:
1143         ret = state->omr3_mask >> 32;
1144         break;
1145     case PEGPL_OMR3MSKL:
1146         ret = state->omr3_mask;
1147         break;
1148     case PEGPL_REGBAH:
1149         ret = state->reg_base >> 32;
1150         break;
1151     case PEGPL_REGBAL:
1152         ret = state->reg_base;
1153         break;
1154     case PEGPL_REGMSK:
1155         ret = state->reg_mask;
1156         break;
1157     case PEGPL_SPECIAL:
1158         ret = state->special;
1159         break;
1160     case PEGPL_CFG:
1161         ret = state->cfg;
1162         break;
1163     }
1164 
1165     return ret;
1166 }
1167 
1168 static void dcr_write_pcie(void *opaque, int dcrn, uint32_t val)
1169 {
1170     PPC460EXPCIEState *s = opaque;
1171     uint64_t size;
1172 
1173     switch (dcrn - s->dcrn_base) {
1174     case PEGPL_CFGBAH:
1175         s->cfg_base = ((uint64_t)val << 32) | (s->cfg_base & 0xffffffff);
1176         break;
1177     case PEGPL_CFGBAL:
1178         s->cfg_base = (s->cfg_base & 0xffffffff00000000ULL) | val;
1179         break;
1180     case PEGPL_CFGMSK:
1181         s->cfg_mask = val;
1182         size = ~(val & 0xfffffffe) + 1;
1183         pcie_host_mmcfg_update(PCIE_HOST_BRIDGE(s), val & 1, s->cfg_base, size);
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     device_class_set_props(dc, 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_new(TYPE_PPC460EX_PCIE_HOST);
1369     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE0_BASE);
1370     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
1371     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
1372 
1373     dev = qdev_new(TYPE_PPC460EX_PCIE_HOST);
1374     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE1_BASE);
1375     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
1376     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
1377 }
1378