1 /* 2 * QEMU PowerPC 440 embedded processors emulation 3 * 4 * Copyright (c) 2012 François Revol 5 * Copyright (c) 2016-2018 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-common.h" 13 #include "qemu/cutils.h" 14 #include "qemu/error-report.h" 15 #include "qapi/error.h" 16 #include "cpu.h" 17 #include "hw/hw.h" 18 #include "exec/address-spaces.h" 19 #include "exec/memory.h" 20 #include "hw/ppc/ppc.h" 21 #include "hw/pci/pci.h" 22 #include "sysemu/block-backend.h" 23 #include "hw/ppc/ppc440.h" 24 25 /*****************************************************************************/ 26 /* L2 Cache as SRAM */ 27 /* FIXME:fix names */ 28 enum { 29 DCR_L2CACHE_BASE = 0x30, 30 DCR_L2CACHE_CFG = DCR_L2CACHE_BASE, 31 DCR_L2CACHE_CMD, 32 DCR_L2CACHE_ADDR, 33 DCR_L2CACHE_DATA, 34 DCR_L2CACHE_STAT, 35 DCR_L2CACHE_CVER, 36 DCR_L2CACHE_SNP0, 37 DCR_L2CACHE_SNP1, 38 DCR_L2CACHE_END = DCR_L2CACHE_SNP1, 39 }; 40 41 /* base is 460ex-specific, cf. U-Boot, ppc4xx-isram.h */ 42 enum { 43 DCR_ISRAM0_BASE = 0x20, 44 DCR_ISRAM0_SB0CR = DCR_ISRAM0_BASE, 45 DCR_ISRAM0_SB1CR, 46 DCR_ISRAM0_SB2CR, 47 DCR_ISRAM0_SB3CR, 48 DCR_ISRAM0_BEAR, 49 DCR_ISRAM0_BESR0, 50 DCR_ISRAM0_BESR1, 51 DCR_ISRAM0_PMEG, 52 DCR_ISRAM0_CID, 53 DCR_ISRAM0_REVID, 54 DCR_ISRAM0_DPC, 55 DCR_ISRAM0_END = DCR_ISRAM0_DPC 56 }; 57 58 enum { 59 DCR_ISRAM1_BASE = 0xb0, 60 DCR_ISRAM1_SB0CR = DCR_ISRAM1_BASE, 61 /* single bank */ 62 DCR_ISRAM1_BEAR = DCR_ISRAM1_BASE + 0x04, 63 DCR_ISRAM1_BESR0, 64 DCR_ISRAM1_BESR1, 65 DCR_ISRAM1_PMEG, 66 DCR_ISRAM1_CID, 67 DCR_ISRAM1_REVID, 68 DCR_ISRAM1_DPC, 69 DCR_ISRAM1_END = DCR_ISRAM1_DPC 70 }; 71 72 typedef struct ppc4xx_l2sram_t { 73 MemoryRegion bank[4]; 74 uint32_t l2cache[8]; 75 uint32_t isram0[11]; 76 } ppc4xx_l2sram_t; 77 78 #ifdef MAP_L2SRAM 79 static void l2sram_update_mappings(ppc4xx_l2sram_t *l2sram, 80 uint32_t isarc, uint32_t isacntl, 81 uint32_t dsarc, uint32_t dsacntl) 82 { 83 if (l2sram->isarc != isarc || 84 (l2sram->isacntl & 0x80000000) != (isacntl & 0x80000000)) { 85 if (l2sram->isacntl & 0x80000000) { 86 /* Unmap previously assigned memory region */ 87 memory_region_del_subregion(get_system_memory(), 88 &l2sram->isarc_ram); 89 } 90 if (isacntl & 0x80000000) { 91 /* Map new instruction memory region */ 92 memory_region_add_subregion(get_system_memory(), isarc, 93 &l2sram->isarc_ram); 94 } 95 } 96 if (l2sram->dsarc != dsarc || 97 (l2sram->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) { 98 if (l2sram->dsacntl & 0x80000000) { 99 /* Beware not to unmap the region we just mapped */ 100 if (!(isacntl & 0x80000000) || l2sram->dsarc != isarc) { 101 /* Unmap previously assigned memory region */ 102 memory_region_del_subregion(get_system_memory(), 103 &l2sram->dsarc_ram); 104 } 105 } 106 if (dsacntl & 0x80000000) { 107 /* Beware not to remap the region we just mapped */ 108 if (!(isacntl & 0x80000000) || dsarc != isarc) { 109 /* Map new data memory region */ 110 memory_region_add_subregion(get_system_memory(), dsarc, 111 &l2sram->dsarc_ram); 112 } 113 } 114 } 115 } 116 #endif 117 118 static uint32_t dcr_read_l2sram(void *opaque, int dcrn) 119 { 120 ppc4xx_l2sram_t *l2sram = opaque; 121 uint32_t ret = 0; 122 123 switch (dcrn) { 124 case DCR_L2CACHE_CFG: 125 case DCR_L2CACHE_CMD: 126 case DCR_L2CACHE_ADDR: 127 case DCR_L2CACHE_DATA: 128 case DCR_L2CACHE_STAT: 129 case DCR_L2CACHE_CVER: 130 case DCR_L2CACHE_SNP0: 131 case DCR_L2CACHE_SNP1: 132 ret = l2sram->l2cache[dcrn - DCR_L2CACHE_BASE]; 133 break; 134 135 case DCR_ISRAM0_SB0CR: 136 case DCR_ISRAM0_SB1CR: 137 case DCR_ISRAM0_SB2CR: 138 case DCR_ISRAM0_SB3CR: 139 case DCR_ISRAM0_BEAR: 140 case DCR_ISRAM0_BESR0: 141 case DCR_ISRAM0_BESR1: 142 case DCR_ISRAM0_PMEG: 143 case DCR_ISRAM0_CID: 144 case DCR_ISRAM0_REVID: 145 case DCR_ISRAM0_DPC: 146 ret = l2sram->isram0[dcrn - DCR_ISRAM0_BASE]; 147 break; 148 149 default: 150 break; 151 } 152 153 return ret; 154 } 155 156 static void dcr_write_l2sram(void *opaque, int dcrn, uint32_t val) 157 { 158 /*ppc4xx_l2sram_t *l2sram = opaque;*/ 159 /* FIXME: Actually handle L2 cache mapping */ 160 161 switch (dcrn) { 162 case DCR_L2CACHE_CFG: 163 case DCR_L2CACHE_CMD: 164 case DCR_L2CACHE_ADDR: 165 case DCR_L2CACHE_DATA: 166 case DCR_L2CACHE_STAT: 167 case DCR_L2CACHE_CVER: 168 case DCR_L2CACHE_SNP0: 169 case DCR_L2CACHE_SNP1: 170 /*l2sram->l2cache[dcrn - DCR_L2CACHE_BASE] = val;*/ 171 break; 172 173 case DCR_ISRAM0_SB0CR: 174 case DCR_ISRAM0_SB1CR: 175 case DCR_ISRAM0_SB2CR: 176 case DCR_ISRAM0_SB3CR: 177 case DCR_ISRAM0_BEAR: 178 case DCR_ISRAM0_BESR0: 179 case DCR_ISRAM0_BESR1: 180 case DCR_ISRAM0_PMEG: 181 case DCR_ISRAM0_CID: 182 case DCR_ISRAM0_REVID: 183 case DCR_ISRAM0_DPC: 184 /*l2sram->isram0[dcrn - DCR_L2CACHE_BASE] = val;*/ 185 break; 186 187 case DCR_ISRAM1_SB0CR: 188 case DCR_ISRAM1_BEAR: 189 case DCR_ISRAM1_BESR0: 190 case DCR_ISRAM1_BESR1: 191 case DCR_ISRAM1_PMEG: 192 case DCR_ISRAM1_CID: 193 case DCR_ISRAM1_REVID: 194 case DCR_ISRAM1_DPC: 195 /*l2sram->isram1[dcrn - DCR_L2CACHE_BASE] = val;*/ 196 break; 197 } 198 /*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/ 199 } 200 201 static void l2sram_reset(void *opaque) 202 { 203 ppc4xx_l2sram_t *l2sram = opaque; 204 205 memset(l2sram->l2cache, 0, sizeof(l2sram->l2cache)); 206 l2sram->l2cache[DCR_L2CACHE_STAT - DCR_L2CACHE_BASE] = 0x80000000; 207 memset(l2sram->isram0, 0, sizeof(l2sram->isram0)); 208 /*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/ 209 } 210 211 void ppc4xx_l2sram_init(CPUPPCState *env) 212 { 213 ppc4xx_l2sram_t *l2sram; 214 215 l2sram = g_malloc0(sizeof(*l2sram)); 216 /* XXX: Size is 4*64kB for 460ex, cf. U-Boot, ppc4xx-isram.h */ 217 memory_region_init_ram(&l2sram->bank[0], NULL, "ppc4xx.l2sram_bank0", 218 64 * K_BYTE, &error_abort); 219 memory_region_init_ram(&l2sram->bank[1], NULL, "ppc4xx.l2sram_bank1", 220 64 * K_BYTE, &error_abort); 221 memory_region_init_ram(&l2sram->bank[2], NULL, "ppc4xx.l2sram_bank2", 222 64 * K_BYTE, &error_abort); 223 memory_region_init_ram(&l2sram->bank[3], NULL, "ppc4xx.l2sram_bank3", 224 64 * K_BYTE, &error_abort); 225 qemu_register_reset(&l2sram_reset, l2sram); 226 ppc_dcr_register(env, DCR_L2CACHE_CFG, 227 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 228 ppc_dcr_register(env, DCR_L2CACHE_CMD, 229 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 230 ppc_dcr_register(env, DCR_L2CACHE_ADDR, 231 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 232 ppc_dcr_register(env, DCR_L2CACHE_DATA, 233 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 234 ppc_dcr_register(env, DCR_L2CACHE_STAT, 235 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 236 ppc_dcr_register(env, DCR_L2CACHE_CVER, 237 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 238 ppc_dcr_register(env, DCR_L2CACHE_SNP0, 239 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 240 ppc_dcr_register(env, DCR_L2CACHE_SNP1, 241 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 242 243 ppc_dcr_register(env, DCR_ISRAM0_SB0CR, 244 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 245 ppc_dcr_register(env, DCR_ISRAM0_SB1CR, 246 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 247 ppc_dcr_register(env, DCR_ISRAM0_SB2CR, 248 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 249 ppc_dcr_register(env, DCR_ISRAM0_SB3CR, 250 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 251 ppc_dcr_register(env, DCR_ISRAM0_PMEG, 252 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 253 ppc_dcr_register(env, DCR_ISRAM0_DPC, 254 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 255 256 ppc_dcr_register(env, DCR_ISRAM1_SB0CR, 257 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 258 ppc_dcr_register(env, DCR_ISRAM1_PMEG, 259 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 260 ppc_dcr_register(env, DCR_ISRAM1_DPC, 261 l2sram, &dcr_read_l2sram, &dcr_write_l2sram); 262 } 263 264 /*****************************************************************************/ 265 /* Clocking Power on Reset */ 266 enum { 267 CPR0_CFGADDR = 0xC, 268 CPR0_CFGDATA = 0xD, 269 270 CPR0_PLLD = 0x060, 271 CPR0_PLBED = 0x080, 272 CPR0_OPBD = 0x0C0, 273 CPR0_PERD = 0x0E0, 274 CPR0_AHBD = 0x100, 275 }; 276 277 typedef struct ppc4xx_cpr_t { 278 uint32_t addr; 279 } ppc4xx_cpr_t; 280 281 static uint32_t dcr_read_cpr(void *opaque, int dcrn) 282 { 283 ppc4xx_cpr_t *cpr = opaque; 284 uint32_t ret = 0; 285 286 switch (dcrn) { 287 case CPR0_CFGADDR: 288 ret = cpr->addr; 289 break; 290 case CPR0_CFGDATA: 291 switch (cpr->addr) { 292 case CPR0_PLLD: 293 ret = (0xb5 << 24) | (1 << 16) | (9 << 8); 294 break; 295 case CPR0_PLBED: 296 ret = (5 << 24); 297 break; 298 case CPR0_OPBD: 299 ret = (2 << 24); 300 break; 301 case CPR0_PERD: 302 case CPR0_AHBD: 303 ret = (1 << 24); 304 break; 305 default: 306 break; 307 } 308 break; 309 default: 310 break; 311 } 312 313 return ret; 314 } 315 316 static void dcr_write_cpr(void *opaque, int dcrn, uint32_t val) 317 { 318 ppc4xx_cpr_t *cpr = opaque; 319 320 switch (dcrn) { 321 case CPR0_CFGADDR: 322 cpr->addr = val; 323 break; 324 case CPR0_CFGDATA: 325 break; 326 default: 327 break; 328 } 329 } 330 331 static void ppc4xx_cpr_reset(void *opaque) 332 { 333 ppc4xx_cpr_t *cpr = opaque; 334 335 cpr->addr = 0; 336 } 337 338 void ppc4xx_cpr_init(CPUPPCState *env) 339 { 340 ppc4xx_cpr_t *cpr; 341 342 cpr = g_malloc0(sizeof(*cpr)); 343 ppc_dcr_register(env, CPR0_CFGADDR, cpr, &dcr_read_cpr, &dcr_write_cpr); 344 ppc_dcr_register(env, CPR0_CFGDATA, cpr, &dcr_read_cpr, &dcr_write_cpr); 345 qemu_register_reset(ppc4xx_cpr_reset, cpr); 346 } 347 348 /*****************************************************************************/ 349 /* System DCRs */ 350 typedef struct ppc4xx_sdr_t ppc4xx_sdr_t; 351 struct ppc4xx_sdr_t { 352 uint32_t addr; 353 }; 354 355 enum { 356 SDR0_CFGADDR = 0x00e, 357 SDR0_CFGDATA, 358 SDR0_STRP0 = 0x020, 359 SDR0_STRP1, 360 SDR0_102 = 0x66, 361 SDR0_103, 362 SDR0_128 = 0x80, 363 SDR0_ECID3 = 0x083, 364 SDR0_DDR0 = 0x0e1, 365 SDR0_USB0 = 0x320, 366 }; 367 368 enum { 369 PESDR0_LOOP = 0x303, 370 PESDR0_RCSSET, 371 PESDR0_RCSSTS, 372 PESDR0_RSTSTA = 0x310, 373 PESDR1_LOOP = 0x343, 374 PESDR1_RCSSET, 375 PESDR1_RCSSTS, 376 PESDR1_RSTSTA = 0x365, 377 }; 378 379 #define SDR0_DDR0_DDRM_ENCODE(n) ((((unsigned long)(n)) & 0x03) << 29) 380 #define SDR0_DDR0_DDRM_DDR1 0x20000000 381 #define SDR0_DDR0_DDRM_DDR2 0x40000000 382 383 static uint32_t dcr_read_sdr(void *opaque, int dcrn) 384 { 385 ppc4xx_sdr_t *sdr = opaque; 386 uint32_t ret = 0; 387 388 switch (dcrn) { 389 case SDR0_CFGADDR: 390 ret = sdr->addr; 391 break; 392 case SDR0_CFGDATA: 393 switch (sdr->addr) { 394 case SDR0_STRP0: 395 ret = (0xb5 << 8) | (1 << 4) | 9; 396 break; 397 case SDR0_STRP1: 398 ret = (5 << 29) | (2 << 26) | (1 << 24); 399 break; 400 case SDR0_ECID3: 401 ret = 1 << 20; /* No Security/Kasumi support */ 402 break; 403 case SDR0_DDR0: 404 ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1; 405 break; 406 case PESDR0_RCSSET: 407 case PESDR1_RCSSET: 408 ret = (1 << 24) | (1 << 16); 409 break; 410 case PESDR0_RCSSTS: 411 case PESDR1_RCSSTS: 412 ret = (1 << 16) | (1 << 12); 413 break; 414 case PESDR0_RSTSTA: 415 case PESDR1_RSTSTA: 416 ret = 1; 417 break; 418 case PESDR0_LOOP: 419 case PESDR1_LOOP: 420 ret = 1 << 12; 421 break; 422 default: 423 break; 424 } 425 break; 426 default: 427 break; 428 } 429 430 return ret; 431 } 432 433 static void dcr_write_sdr(void *opaque, int dcrn, uint32_t val) 434 { 435 ppc4xx_sdr_t *sdr = opaque; 436 437 switch (dcrn) { 438 case SDR0_CFGADDR: 439 sdr->addr = val; 440 break; 441 case SDR0_CFGDATA: 442 switch (sdr->addr) { 443 case 0x00: /* B0CR */ 444 break; 445 default: 446 break; 447 } 448 break; 449 default: 450 break; 451 } 452 } 453 454 static void sdr_reset(void *opaque) 455 { 456 ppc4xx_sdr_t *sdr = opaque; 457 458 sdr->addr = 0; 459 } 460 461 void ppc4xx_sdr_init(CPUPPCState *env) 462 { 463 ppc4xx_sdr_t *sdr; 464 465 sdr = g_malloc0(sizeof(*sdr)); 466 qemu_register_reset(&sdr_reset, sdr); 467 ppc_dcr_register(env, SDR0_CFGADDR, 468 sdr, &dcr_read_sdr, &dcr_write_sdr); 469 ppc_dcr_register(env, SDR0_CFGDATA, 470 sdr, &dcr_read_sdr, &dcr_write_sdr); 471 ppc_dcr_register(env, SDR0_102, 472 sdr, &dcr_read_sdr, &dcr_write_sdr); 473 ppc_dcr_register(env, SDR0_103, 474 sdr, &dcr_read_sdr, &dcr_write_sdr); 475 ppc_dcr_register(env, SDR0_128, 476 sdr, &dcr_read_sdr, &dcr_write_sdr); 477 ppc_dcr_register(env, SDR0_USB0, 478 sdr, &dcr_read_sdr, &dcr_write_sdr); 479 } 480 481 /*****************************************************************************/ 482 /* SDRAM controller */ 483 typedef struct ppc4xx_sdram_t { 484 uint32_t addr; 485 int nbanks; 486 MemoryRegion containers[4]; /* used for clipping */ 487 MemoryRegion *ram_memories; 488 hwaddr ram_bases[4]; 489 hwaddr ram_sizes[4]; 490 uint32_t bcr[4]; 491 } ppc4xx_sdram_t; 492 493 enum { 494 SDRAM0_CFGADDR = 0x10, 495 SDRAM0_CFGDATA, 496 SDRAM_R0BAS = 0x40, 497 SDRAM_R1BAS, 498 SDRAM_R2BAS, 499 SDRAM_R3BAS, 500 SDRAM_CONF1HB = 0x45, 501 SDRAM_PLBADDULL = 0x4a, 502 SDRAM_CONF1LL = 0x4b, 503 SDRAM_CONFPATHB = 0x4f, 504 SDRAM_PLBADDUHB = 0x50, 505 }; 506 507 /* XXX: TOFIX: some patches have made this code become inconsistent: 508 * there are type inconsistencies, mixing hwaddr, target_ulong 509 * and uint32_t 510 */ 511 static uint32_t sdram_bcr(hwaddr ram_base, hwaddr ram_size) 512 { 513 uint32_t bcr; 514 515 switch (ram_size) { 516 case (8 * M_BYTE): 517 bcr = 0xffc0; 518 break; 519 case (16 * M_BYTE): 520 bcr = 0xff80; 521 break; 522 case (32 * M_BYTE): 523 bcr = 0xff00; 524 break; 525 case (64 * M_BYTE): 526 bcr = 0xfe00; 527 break; 528 case (128 * M_BYTE): 529 bcr = 0xfc00; 530 break; 531 case (256 * M_BYTE): 532 bcr = 0xf800; 533 break; 534 case (512 * M_BYTE): 535 bcr = 0xf000; 536 break; 537 case (1 * G_BYTE): 538 bcr = 0xe000; 539 break; 540 default: 541 error_report("invalid RAM size " TARGET_FMT_plx, ram_size); 542 return 0; 543 } 544 bcr |= ram_base & 0xFF800000; 545 bcr |= 1; 546 547 return bcr; 548 } 549 550 static inline hwaddr sdram_base(uint32_t bcr) 551 { 552 return bcr & 0xFF800000; 553 } 554 555 static target_ulong sdram_size(uint32_t bcr) 556 { 557 target_ulong size; 558 int sh; 559 560 sh = 1024 - ((bcr >> 6) & 0x3ff); 561 if (sh == 0) { 562 size = -1; 563 } else { 564 size = 8 * M_BYTE * sh; 565 } 566 567 return size; 568 } 569 570 static void sdram_set_bcr(ppc4xx_sdram_t *sdram, 571 uint32_t *bcrp, uint32_t bcr, int enabled) 572 { 573 unsigned n = bcrp - sdram->bcr; 574 575 if (*bcrp & 1) { 576 /* Unmap RAM */ 577 memory_region_del_subregion(get_system_memory(), 578 &sdram->containers[n]); 579 memory_region_del_subregion(&sdram->containers[n], 580 &sdram->ram_memories[n]); 581 object_unparent(OBJECT(&sdram->containers[n])); 582 } 583 *bcrp = bcr & 0xFFDEE001; 584 if (enabled && (bcr & 1)) { 585 memory_region_init(&sdram->containers[n], NULL, "sdram-containers", 586 sdram_size(bcr)); 587 memory_region_add_subregion(&sdram->containers[n], 0, 588 &sdram->ram_memories[n]); 589 memory_region_add_subregion(get_system_memory(), 590 sdram_base(bcr), 591 &sdram->containers[n]); 592 } 593 } 594 595 static void sdram_map_bcr(ppc4xx_sdram_t *sdram) 596 { 597 int i; 598 599 for (i = 0; i < sdram->nbanks; i++) { 600 if (sdram->ram_sizes[i] != 0) { 601 sdram_set_bcr(sdram, 602 &sdram->bcr[i], 603 sdram_bcr(sdram->ram_bases[i], sdram->ram_sizes[i]), 604 1); 605 } else { 606 sdram_set_bcr(sdram, &sdram->bcr[i], 0, 0); 607 } 608 } 609 } 610 611 static uint32_t dcr_read_sdram(void *opaque, int dcrn) 612 { 613 ppc4xx_sdram_t *sdram = opaque; 614 uint32_t ret = 0; 615 616 switch (dcrn) { 617 case SDRAM_R0BAS: 618 case SDRAM_R1BAS: 619 case SDRAM_R2BAS: 620 case SDRAM_R3BAS: 621 ret = sdram_bcr(sdram->ram_bases[dcrn - SDRAM_R0BAS], 622 sdram->ram_sizes[dcrn - SDRAM_R0BAS]); 623 break; 624 case SDRAM_CONF1HB: 625 case SDRAM_CONF1LL: 626 case SDRAM_CONFPATHB: 627 case SDRAM_PLBADDULL: 628 case SDRAM_PLBADDUHB: 629 break; 630 case SDRAM0_CFGADDR: 631 ret = sdram->addr; 632 break; 633 case SDRAM0_CFGDATA: 634 switch (sdram->addr) { 635 case 0x14: /* SDRAM_MCSTAT (405EX) */ 636 case 0x1F: 637 ret = 0x80000000; 638 break; 639 case 0x21: /* SDRAM_MCOPT2 */ 640 ret = 0x08000000; 641 break; 642 case 0x40: /* SDRAM_MB0CF */ 643 ret = 0x00008001; 644 break; 645 case 0x7A: /* SDRAM_DLCR */ 646 ret = 0x02000000; 647 break; 648 case 0xE1: /* SDR0_DDR0 */ 649 ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1; 650 break; 651 default: 652 break; 653 } 654 break; 655 default: 656 break; 657 } 658 659 return ret; 660 } 661 662 static void dcr_write_sdram(void *opaque, int dcrn, uint32_t val) 663 { 664 ppc4xx_sdram_t *sdram = opaque; 665 666 switch (dcrn) { 667 case SDRAM_R0BAS: 668 case SDRAM_R1BAS: 669 case SDRAM_R2BAS: 670 case SDRAM_R3BAS: 671 case SDRAM_CONF1HB: 672 case SDRAM_CONF1LL: 673 case SDRAM_CONFPATHB: 674 case SDRAM_PLBADDULL: 675 case SDRAM_PLBADDUHB: 676 break; 677 case SDRAM0_CFGADDR: 678 sdram->addr = val; 679 break; 680 case SDRAM0_CFGDATA: 681 switch (sdram->addr) { 682 case 0x00: /* B0CR */ 683 break; 684 default: 685 break; 686 } 687 break; 688 default: 689 break; 690 } 691 } 692 693 static void sdram_reset(void *opaque) 694 { 695 ppc4xx_sdram_t *sdram = opaque; 696 697 sdram->addr = 0; 698 } 699 700 void ppc440_sdram_init(CPUPPCState *env, int nbanks, 701 MemoryRegion *ram_memories, 702 hwaddr *ram_bases, hwaddr *ram_sizes, 703 int do_init) 704 { 705 ppc4xx_sdram_t *sdram; 706 707 sdram = g_malloc0(sizeof(*sdram)); 708 sdram->nbanks = nbanks; 709 sdram->ram_memories = ram_memories; 710 memcpy(sdram->ram_bases, ram_bases, nbanks * sizeof(hwaddr)); 711 memcpy(sdram->ram_sizes, ram_sizes, nbanks * sizeof(hwaddr)); 712 qemu_register_reset(&sdram_reset, sdram); 713 ppc_dcr_register(env, SDRAM0_CFGADDR, 714 sdram, &dcr_read_sdram, &dcr_write_sdram); 715 ppc_dcr_register(env, SDRAM0_CFGDATA, 716 sdram, &dcr_read_sdram, &dcr_write_sdram); 717 if (do_init) { 718 sdram_map_bcr(sdram); 719 } 720 721 ppc_dcr_register(env, SDRAM_R0BAS, 722 sdram, &dcr_read_sdram, &dcr_write_sdram); 723 ppc_dcr_register(env, SDRAM_R1BAS, 724 sdram, &dcr_read_sdram, &dcr_write_sdram); 725 ppc_dcr_register(env, SDRAM_R2BAS, 726 sdram, &dcr_read_sdram, &dcr_write_sdram); 727 ppc_dcr_register(env, SDRAM_R3BAS, 728 sdram, &dcr_read_sdram, &dcr_write_sdram); 729 ppc_dcr_register(env, SDRAM_CONF1HB, 730 sdram, &dcr_read_sdram, &dcr_write_sdram); 731 ppc_dcr_register(env, SDRAM_PLBADDULL, 732 sdram, &dcr_read_sdram, &dcr_write_sdram); 733 ppc_dcr_register(env, SDRAM_CONF1LL, 734 sdram, &dcr_read_sdram, &dcr_write_sdram); 735 ppc_dcr_register(env, SDRAM_CONFPATHB, 736 sdram, &dcr_read_sdram, &dcr_write_sdram); 737 ppc_dcr_register(env, SDRAM_PLBADDUHB, 738 sdram, &dcr_read_sdram, &dcr_write_sdram); 739 } 740 741 /*****************************************************************************/ 742 /* PLB to AHB bridge */ 743 enum { 744 AHB_TOP = 0xA4, 745 AHB_BOT = 0xA5, 746 }; 747 748 typedef struct ppc4xx_ahb_t { 749 uint32_t top; 750 uint32_t bot; 751 } ppc4xx_ahb_t; 752 753 static uint32_t dcr_read_ahb(void *opaque, int dcrn) 754 { 755 ppc4xx_ahb_t *ahb = opaque; 756 uint32_t ret = 0; 757 758 switch (dcrn) { 759 case AHB_TOP: 760 ret = ahb->top; 761 break; 762 case AHB_BOT: 763 ret = ahb->bot; 764 break; 765 default: 766 break; 767 } 768 769 return ret; 770 } 771 772 static void dcr_write_ahb(void *opaque, int dcrn, uint32_t val) 773 { 774 ppc4xx_ahb_t *ahb = opaque; 775 776 switch (dcrn) { 777 case AHB_TOP: 778 ahb->top = val; 779 break; 780 case AHB_BOT: 781 ahb->bot = val; 782 break; 783 } 784 } 785 786 static void ppc4xx_ahb_reset(void *opaque) 787 { 788 ppc4xx_ahb_t *ahb = opaque; 789 790 /* No error */ 791 ahb->top = 0; 792 ahb->bot = 0; 793 } 794 795 void ppc4xx_ahb_init(CPUPPCState *env) 796 { 797 ppc4xx_ahb_t *ahb; 798 799 ahb = g_malloc0(sizeof(*ahb)); 800 ppc_dcr_register(env, AHB_TOP, ahb, &dcr_read_ahb, &dcr_write_ahb); 801 ppc_dcr_register(env, AHB_BOT, ahb, &dcr_read_ahb, &dcr_write_ahb); 802 qemu_register_reset(ppc4xx_ahb_reset, ahb); 803 } 804 805 /*****************************************************************************/ 806 /* PCI Express controller */ 807 /* FIXME: This is not complete and does not work, only implemented partially 808 * to allow firmware and guests to find an empty bus. Cards should use PCI. 809 */ 810 #include "hw/pci/pcie_host.h" 811 812 #define TYPE_PPC460EX_PCIE_HOST "ppc460ex-pcie-host" 813 #define PPC460EX_PCIE_HOST(obj) \ 814 OBJECT_CHECK(PPC460EXPCIEState, (obj), TYPE_PPC460EX_PCIE_HOST) 815 816 typedef struct PPC460EXPCIEState { 817 PCIExpressHost host; 818 819 MemoryRegion iomem; 820 qemu_irq irq[4]; 821 int32_t dcrn_base; 822 823 uint64_t cfg_base; 824 uint32_t cfg_mask; 825 uint64_t msg_base; 826 uint32_t msg_mask; 827 uint64_t omr1_base; 828 uint64_t omr1_mask; 829 uint64_t omr2_base; 830 uint64_t omr2_mask; 831 uint64_t omr3_base; 832 uint64_t omr3_mask; 833 uint64_t reg_base; 834 uint32_t reg_mask; 835 uint32_t special; 836 uint32_t cfg; 837 } PPC460EXPCIEState; 838 839 #define DCRN_PCIE0_BASE 0x100 840 #define DCRN_PCIE1_BASE 0x120 841 842 enum { 843 PEGPL_CFGBAH = 0x0, 844 PEGPL_CFGBAL, 845 PEGPL_CFGMSK, 846 PEGPL_MSGBAH, 847 PEGPL_MSGBAL, 848 PEGPL_MSGMSK, 849 PEGPL_OMR1BAH, 850 PEGPL_OMR1BAL, 851 PEGPL_OMR1MSKH, 852 PEGPL_OMR1MSKL, 853 PEGPL_OMR2BAH, 854 PEGPL_OMR2BAL, 855 PEGPL_OMR2MSKH, 856 PEGPL_OMR2MSKL, 857 PEGPL_OMR3BAH, 858 PEGPL_OMR3BAL, 859 PEGPL_OMR3MSKH, 860 PEGPL_OMR3MSKL, 861 PEGPL_REGBAH, 862 PEGPL_REGBAL, 863 PEGPL_REGMSK, 864 PEGPL_SPECIAL, 865 PEGPL_CFG, 866 }; 867 868 static uint32_t dcr_read_pcie(void *opaque, int dcrn) 869 { 870 PPC460EXPCIEState *state = opaque; 871 uint32_t ret = 0; 872 873 switch (dcrn - state->dcrn_base) { 874 case PEGPL_CFGBAH: 875 ret = state->cfg_base >> 32; 876 break; 877 case PEGPL_CFGBAL: 878 ret = state->cfg_base; 879 break; 880 case PEGPL_CFGMSK: 881 ret = state->cfg_mask; 882 break; 883 case PEGPL_MSGBAH: 884 ret = state->msg_base >> 32; 885 break; 886 case PEGPL_MSGBAL: 887 ret = state->msg_base; 888 break; 889 case PEGPL_MSGMSK: 890 ret = state->msg_mask; 891 break; 892 case PEGPL_OMR1BAH: 893 ret = state->omr1_base >> 32; 894 break; 895 case PEGPL_OMR1BAL: 896 ret = state->omr1_base; 897 break; 898 case PEGPL_OMR1MSKH: 899 ret = state->omr1_mask >> 32; 900 break; 901 case PEGPL_OMR1MSKL: 902 ret = state->omr1_mask; 903 break; 904 case PEGPL_OMR2BAH: 905 ret = state->omr2_base >> 32; 906 break; 907 case PEGPL_OMR2BAL: 908 ret = state->omr2_base; 909 break; 910 case PEGPL_OMR2MSKH: 911 ret = state->omr2_mask >> 32; 912 break; 913 case PEGPL_OMR2MSKL: 914 ret = state->omr3_mask; 915 break; 916 case PEGPL_OMR3BAH: 917 ret = state->omr3_base >> 32; 918 break; 919 case PEGPL_OMR3BAL: 920 ret = state->omr3_base; 921 break; 922 case PEGPL_OMR3MSKH: 923 ret = state->omr3_mask >> 32; 924 break; 925 case PEGPL_OMR3MSKL: 926 ret = state->omr3_mask; 927 break; 928 case PEGPL_REGBAH: 929 ret = state->reg_base >> 32; 930 break; 931 case PEGPL_REGBAL: 932 ret = state->reg_base; 933 break; 934 case PEGPL_REGMSK: 935 ret = state->reg_mask; 936 break; 937 case PEGPL_SPECIAL: 938 ret = state->special; 939 break; 940 case PEGPL_CFG: 941 ret = state->cfg; 942 break; 943 } 944 945 return ret; 946 } 947 948 static void dcr_write_pcie(void *opaque, int dcrn, uint32_t val) 949 { 950 PPC460EXPCIEState *s = opaque; 951 uint64_t size; 952 953 switch (dcrn - s->dcrn_base) { 954 case PEGPL_CFGBAH: 955 s->cfg_base = ((uint64_t)val << 32) | (s->cfg_base & 0xffffffff); 956 break; 957 case PEGPL_CFGBAL: 958 s->cfg_base = (s->cfg_base & 0xffffffff00000000ULL) | val; 959 break; 960 case PEGPL_CFGMSK: 961 s->cfg_mask = val; 962 size = ~(val & 0xfffffffe) + 1; 963 qemu_mutex_lock_iothread(); 964 pcie_host_mmcfg_update(PCIE_HOST_BRIDGE(s), val & 1, s->cfg_base, size); 965 qemu_mutex_unlock_iothread(); 966 break; 967 case PEGPL_MSGBAH: 968 s->msg_base = ((uint64_t)val << 32) | (s->msg_base & 0xffffffff); 969 break; 970 case PEGPL_MSGBAL: 971 s->msg_base = (s->msg_base & 0xffffffff00000000ULL) | val; 972 break; 973 case PEGPL_MSGMSK: 974 s->msg_mask = val; 975 break; 976 case PEGPL_OMR1BAH: 977 s->omr1_base = ((uint64_t)val << 32) | (s->omr1_base & 0xffffffff); 978 break; 979 case PEGPL_OMR1BAL: 980 s->omr1_base = (s->omr1_base & 0xffffffff00000000ULL) | val; 981 break; 982 case PEGPL_OMR1MSKH: 983 s->omr1_mask = ((uint64_t)val << 32) | (s->omr1_mask & 0xffffffff); 984 break; 985 case PEGPL_OMR1MSKL: 986 s->omr1_mask = (s->omr1_mask & 0xffffffff00000000ULL) | val; 987 break; 988 case PEGPL_OMR2BAH: 989 s->omr2_base = ((uint64_t)val << 32) | (s->omr2_base & 0xffffffff); 990 break; 991 case PEGPL_OMR2BAL: 992 s->omr2_base = (s->omr2_base & 0xffffffff00000000ULL) | val; 993 break; 994 case PEGPL_OMR2MSKH: 995 s->omr2_mask = ((uint64_t)val << 32) | (s->omr2_mask & 0xffffffff); 996 break; 997 case PEGPL_OMR2MSKL: 998 s->omr2_mask = (s->omr2_mask & 0xffffffff00000000ULL) | val; 999 break; 1000 case PEGPL_OMR3BAH: 1001 s->omr3_base = ((uint64_t)val << 32) | (s->omr3_base & 0xffffffff); 1002 break; 1003 case PEGPL_OMR3BAL: 1004 s->omr3_base = (s->omr3_base & 0xffffffff00000000ULL) | val; 1005 break; 1006 case PEGPL_OMR3MSKH: 1007 s->omr3_mask = ((uint64_t)val << 32) | (s->omr3_mask & 0xffffffff); 1008 break; 1009 case PEGPL_OMR3MSKL: 1010 s->omr3_mask = (s->omr3_mask & 0xffffffff00000000ULL) | val; 1011 break; 1012 case PEGPL_REGBAH: 1013 s->reg_base = ((uint64_t)val << 32) | (s->reg_base & 0xffffffff); 1014 break; 1015 case PEGPL_REGBAL: 1016 s->reg_base = (s->reg_base & 0xffffffff00000000ULL) | val; 1017 break; 1018 case PEGPL_REGMSK: 1019 s->reg_mask = val; 1020 /* FIXME: how is size encoded? */ 1021 size = (val == 0x7001 ? 4096 : ~(val & 0xfffffffe) + 1); 1022 break; 1023 case PEGPL_SPECIAL: 1024 s->special = val; 1025 break; 1026 case PEGPL_CFG: 1027 s->cfg = val; 1028 break; 1029 } 1030 } 1031 1032 static void ppc460ex_set_irq(void *opaque, int irq_num, int level) 1033 { 1034 PPC460EXPCIEState *s = opaque; 1035 qemu_set_irq(s->irq[irq_num], level); 1036 } 1037 1038 static void ppc460ex_pcie_realize(DeviceState *dev, Error **errp) 1039 { 1040 PPC460EXPCIEState *s = PPC460EX_PCIE_HOST(dev); 1041 PCIHostState *pci = PCI_HOST_BRIDGE(dev); 1042 int i, id; 1043 char buf[16]; 1044 1045 switch (s->dcrn_base) { 1046 case DCRN_PCIE0_BASE: 1047 id = 0; 1048 break; 1049 case DCRN_PCIE1_BASE: 1050 id = 1; 1051 break; 1052 default: 1053 error_setg(errp, "invalid PCIe DCRN base"); 1054 return; 1055 } 1056 snprintf(buf, sizeof(buf), "pcie%d-io", id); 1057 memory_region_init(&s->iomem, OBJECT(s), buf, UINT64_MAX); 1058 for (i = 0; i < 4; i++) { 1059 sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq[i]); 1060 } 1061 snprintf(buf, sizeof(buf), "pcie.%d", id); 1062 pci->bus = pci_register_root_bus(DEVICE(s), buf, ppc460ex_set_irq, 1063 pci_swizzle_map_irq_fn, s, &s->iomem, 1064 get_system_io(), 0, 4, TYPE_PCIE_BUS); 1065 } 1066 1067 static Property ppc460ex_pcie_props[] = { 1068 DEFINE_PROP_INT32("dcrn-base", PPC460EXPCIEState, dcrn_base, -1), 1069 DEFINE_PROP_END_OF_LIST(), 1070 }; 1071 1072 static void ppc460ex_pcie_class_init(ObjectClass *klass, void *data) 1073 { 1074 DeviceClass *dc = DEVICE_CLASS(klass); 1075 1076 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 1077 dc->realize = ppc460ex_pcie_realize; 1078 dc->props = ppc460ex_pcie_props; 1079 dc->hotpluggable = false; 1080 } 1081 1082 static const TypeInfo ppc460ex_pcie_host_info = { 1083 .name = TYPE_PPC460EX_PCIE_HOST, 1084 .parent = TYPE_PCIE_HOST_BRIDGE, 1085 .instance_size = sizeof(PPC460EXPCIEState), 1086 .class_init = ppc460ex_pcie_class_init, 1087 }; 1088 1089 static void ppc460ex_pcie_register(void) 1090 { 1091 type_register_static(&ppc460ex_pcie_host_info); 1092 } 1093 1094 type_init(ppc460ex_pcie_register) 1095 1096 static void ppc460ex_pcie_register_dcrs(PPC460EXPCIEState *s, CPUPPCState *env) 1097 { 1098 ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGBAH, s, 1099 &dcr_read_pcie, &dcr_write_pcie); 1100 ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGBAL, s, 1101 &dcr_read_pcie, &dcr_write_pcie); 1102 ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGMSK, s, 1103 &dcr_read_pcie, &dcr_write_pcie); 1104 ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGBAH, s, 1105 &dcr_read_pcie, &dcr_write_pcie); 1106 ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGBAL, s, 1107 &dcr_read_pcie, &dcr_write_pcie); 1108 ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGMSK, s, 1109 &dcr_read_pcie, &dcr_write_pcie); 1110 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1BAH, s, 1111 &dcr_read_pcie, &dcr_write_pcie); 1112 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1BAL, s, 1113 &dcr_read_pcie, &dcr_write_pcie); 1114 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1MSKH, s, 1115 &dcr_read_pcie, &dcr_write_pcie); 1116 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1MSKL, s, 1117 &dcr_read_pcie, &dcr_write_pcie); 1118 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2BAH, s, 1119 &dcr_read_pcie, &dcr_write_pcie); 1120 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2BAL, s, 1121 &dcr_read_pcie, &dcr_write_pcie); 1122 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2MSKH, s, 1123 &dcr_read_pcie, &dcr_write_pcie); 1124 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2MSKL, s, 1125 &dcr_read_pcie, &dcr_write_pcie); 1126 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3BAH, s, 1127 &dcr_read_pcie, &dcr_write_pcie); 1128 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3BAL, s, 1129 &dcr_read_pcie, &dcr_write_pcie); 1130 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3MSKH, s, 1131 &dcr_read_pcie, &dcr_write_pcie); 1132 ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3MSKL, s, 1133 &dcr_read_pcie, &dcr_write_pcie); 1134 ppc_dcr_register(env, s->dcrn_base + PEGPL_REGBAH, s, 1135 &dcr_read_pcie, &dcr_write_pcie); 1136 ppc_dcr_register(env, s->dcrn_base + PEGPL_REGBAL, s, 1137 &dcr_read_pcie, &dcr_write_pcie); 1138 ppc_dcr_register(env, s->dcrn_base + PEGPL_REGMSK, s, 1139 &dcr_read_pcie, &dcr_write_pcie); 1140 ppc_dcr_register(env, s->dcrn_base + PEGPL_SPECIAL, s, 1141 &dcr_read_pcie, &dcr_write_pcie); 1142 ppc_dcr_register(env, s->dcrn_base + PEGPL_CFG, s, 1143 &dcr_read_pcie, &dcr_write_pcie); 1144 } 1145 1146 void ppc460ex_pcie_init(CPUPPCState *env) 1147 { 1148 DeviceState *dev; 1149 1150 dev = qdev_create(NULL, TYPE_PPC460EX_PCIE_HOST); 1151 qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE0_BASE); 1152 qdev_init_nofail(dev); 1153 object_property_set_bool(OBJECT(dev), true, "realized", NULL); 1154 ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env); 1155 1156 dev = qdev_create(NULL, TYPE_PPC460EX_PCIE_HOST); 1157 qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE1_BASE); 1158 qdev_init_nofail(dev); 1159 object_property_set_bool(OBJECT(dev), true, "realized", NULL); 1160 ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env); 1161 } 1162