1 /* 2 * bonito north bridge support 3 * 4 * Copyright (c) 2008 yajin (yajin@vm-kernel.org) 5 * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com) 6 * 7 * This code is licensed under the GNU GPL v2. 8 * 9 * Contributions after 2012-01-13 are licensed under the terms of the 10 * GNU GPL, version 2 or (at your option) any later version. 11 */ 12 13 /* 14 * fuloong 2e mini pc has a bonito north bridge. 15 */ 16 17 /* 18 * what is the meaning of devfn in qemu and IDSEL in bonito northbridge? 19 * 20 * devfn pci_slot<<3 + funno 21 * one pci bus can have 32 devices and each device can have 8 functions. 22 * 23 * In bonito north bridge, pci slot = IDSEL bit - 12. 24 * For example, PCI_IDSEL_VIA686B = 17, 25 * pci slot = 17-12=5 26 * 27 * so 28 * VT686B_FUN0's devfn = (5<<3)+0 29 * VT686B_FUN1's devfn = (5<<3)+1 30 * 31 * qemu also uses pci address for north bridge to access pci config register. 32 * bus_no [23:16] 33 * dev_no [15:11] 34 * fun_no [10:8] 35 * reg_no [7:2] 36 * 37 * so function bonito_sbridge_pciaddr for the translation from 38 * north bridge address to pci address. 39 */ 40 41 #include "qemu/osdep.h" 42 #include "qemu/units.h" 43 #include "qapi/error.h" 44 #include "qemu/error-report.h" 45 #include "hw/pci/pci.h" 46 #include "hw/irq.h" 47 #include "hw/mips/mips.h" 48 #include "hw/pci/pci_host.h" 49 #include "migration/vmstate.h" 50 #include "sysemu/reset.h" 51 #include "sysemu/runstate.h" 52 #include "exec/address-spaces.h" 53 #include "hw/misc/unimp.h" 54 #include "hw/registerfields.h" 55 #include "qom/object.h" 56 57 /* #define DEBUG_BONITO */ 58 59 #ifdef DEBUG_BONITO 60 #define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __func__, ##__VA_ARGS__) 61 #else 62 #define DPRINTF(fmt, ...) 63 #endif 64 65 /* from linux soure code. include/asm-mips/mips-boards/bonito64.h*/ 66 #define BONITO_BOOT_BASE 0x1fc00000 67 #define BONITO_BOOT_SIZE 0x00100000 68 #define BONITO_BOOT_TOP (BONITO_BOOT_BASE + BONITO_BOOT_SIZE - 1) 69 #define BONITO_FLASH_BASE 0x1c000000 70 #define BONITO_FLASH_SIZE 0x03000000 71 #define BONITO_FLASH_TOP (BONITO_FLASH_BASE + BONITO_FLASH_SIZE - 1) 72 #define BONITO_SOCKET_BASE 0x1f800000 73 #define BONITO_SOCKET_SIZE 0x00400000 74 #define BONITO_SOCKET_TOP (BONITO_SOCKET_BASE + BONITO_SOCKET_SIZE - 1) 75 #define BONITO_REG_BASE 0x1fe00000 76 #define BONITO_REG_SIZE 0x00040000 77 #define BONITO_REG_TOP (BONITO_REG_BASE + BONITO_REG_SIZE - 1) 78 #define BONITO_DEV_BASE 0x1ff00000 79 #define BONITO_DEV_SIZE 0x00100000 80 #define BONITO_DEV_TOP (BONITO_DEV_BASE + BONITO_DEV_SIZE - 1) 81 #define BONITO_PCILO_BASE 0x10000000 82 #define BONITO_PCILO_BASE_VA 0xb0000000 83 #define BONITO_PCILO_SIZE 0x0c000000 84 #define BONITO_PCILO_TOP (BONITO_PCILO_BASE + BONITO_PCILO_SIZE - 1) 85 #define BONITO_PCILO0_BASE 0x10000000 86 #define BONITO_PCILO1_BASE 0x14000000 87 #define BONITO_PCILO2_BASE 0x18000000 88 #define BONITO_PCIHI_BASE 0x20000000 89 #define BONITO_PCIHI_SIZE 0x60000000 90 #define BONITO_PCIHI_TOP (BONITO_PCIHI_BASE + BONITO_PCIHI_SIZE - 1) 91 #define BONITO_PCIIO_BASE 0x1fd00000 92 #define BONITO_PCIIO_BASE_VA 0xbfd00000 93 #define BONITO_PCIIO_SIZE 0x00010000 94 #define BONITO_PCIIO_TOP (BONITO_PCIIO_BASE + BONITO_PCIIO_SIZE - 1) 95 #define BONITO_PCICFG_BASE 0x1fe80000 96 #define BONITO_PCICFG_SIZE 0x00080000 97 #define BONITO_PCICFG_TOP (BONITO_PCICFG_BASE + BONITO_PCICFG_SIZE - 1) 98 99 100 #define BONITO_PCICONFIGBASE 0x00 101 #define BONITO_REGBASE 0x100 102 103 #define BONITO_PCICONFIG_BASE (BONITO_PCICONFIGBASE + BONITO_REG_BASE) 104 #define BONITO_PCICONFIG_SIZE (0x100) 105 106 #define BONITO_INTERNAL_REG_BASE (BONITO_REGBASE + BONITO_REG_BASE) 107 #define BONITO_INTERNAL_REG_SIZE (0x70) 108 109 #define BONITO_SPCICONFIG_BASE (BONITO_PCICFG_BASE) 110 #define BONITO_SPCICONFIG_SIZE (BONITO_PCICFG_SIZE) 111 112 113 114 /* 1. Bonito h/w Configuration */ 115 /* Power on register */ 116 117 #define BONITO_BONPONCFG (0x00 >> 2) /* 0x100 */ 118 119 /* PCI configuration register */ 120 #define BONITO_BONGENCFG_OFFSET 0x4 121 #define BONITO_BONGENCFG (BONITO_BONGENCFG_OFFSET >> 2) /*0x104 */ 122 REG32(BONGENCFG, 0x104) 123 FIELD(BONGENCFG, DEBUGMODE, 0, 1) 124 FIELD(BONGENCFG, SNOOP, 1, 1) 125 FIELD(BONGENCFG, CPUSELFRESET, 2, 1) 126 FIELD(BONGENCFG, BYTESWAP, 6, 1) 127 FIELD(BONGENCFG, UNCACHED, 7, 1) 128 FIELD(BONGENCFG, PREFETCH, 8, 1) 129 FIELD(BONGENCFG, WRITEBEHIND, 9, 1) 130 FIELD(BONGENCFG, PCIQUEUE, 12, 1) 131 132 /* 2. IO & IDE configuration */ 133 #define BONITO_IODEVCFG (0x08 >> 2) /* 0x108 */ 134 135 /* 3. IO & IDE configuration */ 136 #define BONITO_SDCFG (0x0c >> 2) /* 0x10c */ 137 138 /* 4. PCI address map control */ 139 #define BONITO_PCIMAP (0x10 >> 2) /* 0x110 */ 140 #define BONITO_PCIMEMBASECFG (0x14 >> 2) /* 0x114 */ 141 #define BONITO_PCIMAP_CFG (0x18 >> 2) /* 0x118 */ 142 143 /* 5. ICU & GPIO regs */ 144 /* GPIO Regs - r/w */ 145 #define BONITO_GPIODATA_OFFSET 0x1c 146 #define BONITO_GPIODATA (BONITO_GPIODATA_OFFSET >> 2) /* 0x11c */ 147 #define BONITO_GPIOIE (0x20 >> 2) /* 0x120 */ 148 149 /* ICU Configuration Regs - r/w */ 150 #define BONITO_INTEDGE (0x24 >> 2) /* 0x124 */ 151 #define BONITO_INTSTEER (0x28 >> 2) /* 0x128 */ 152 #define BONITO_INTPOL (0x2c >> 2) /* 0x12c */ 153 154 /* ICU Enable Regs - IntEn & IntISR are r/o. */ 155 #define BONITO_INTENSET (0x30 >> 2) /* 0x130 */ 156 #define BONITO_INTENCLR (0x34 >> 2) /* 0x134 */ 157 #define BONITO_INTEN (0x38 >> 2) /* 0x138 */ 158 #define BONITO_INTISR (0x3c >> 2) /* 0x13c */ 159 160 /* PCI mail boxes */ 161 #define BONITO_PCIMAIL0_OFFSET 0x40 162 #define BONITO_PCIMAIL1_OFFSET 0x44 163 #define BONITO_PCIMAIL2_OFFSET 0x48 164 #define BONITO_PCIMAIL3_OFFSET 0x4c 165 #define BONITO_PCIMAIL0 (0x40 >> 2) /* 0x140 */ 166 #define BONITO_PCIMAIL1 (0x44 >> 2) /* 0x144 */ 167 #define BONITO_PCIMAIL2 (0x48 >> 2) /* 0x148 */ 168 #define BONITO_PCIMAIL3 (0x4c >> 2) /* 0x14c */ 169 170 /* 6. PCI cache */ 171 #define BONITO_PCICACHECTRL (0x50 >> 2) /* 0x150 */ 172 #define BONITO_PCICACHETAG (0x54 >> 2) /* 0x154 */ 173 #define BONITO_PCIBADADDR (0x58 >> 2) /* 0x158 */ 174 #define BONITO_PCIMSTAT (0x5c >> 2) /* 0x15c */ 175 176 /* 7. other*/ 177 #define BONITO_TIMECFG (0x60 >> 2) /* 0x160 */ 178 #define BONITO_CPUCFG (0x64 >> 2) /* 0x164 */ 179 #define BONITO_DQCFG (0x68 >> 2) /* 0x168 */ 180 #define BONITO_MEMSIZE (0x6C >> 2) /* 0x16c */ 181 182 #define BONITO_REGS (0x70 >> 2) 183 184 /* PCI config for south bridge. type 0 */ 185 #define BONITO_PCICONF_IDSEL_MASK 0xfffff800 /* [31:11] */ 186 #define BONITO_PCICONF_IDSEL_OFFSET 11 187 #define BONITO_PCICONF_FUN_MASK 0x700 /* [10:8] */ 188 #define BONITO_PCICONF_FUN_OFFSET 8 189 #define BONITO_PCICONF_REG_MASK 0xFC 190 #define BONITO_PCICONF_REG_OFFSET 0 191 192 193 /* idsel BIT = pci slot number +12 */ 194 #define PCI_SLOT_BASE 12 195 #define PCI_IDSEL_VIA686B_BIT (17) 196 #define PCI_IDSEL_VIA686B (1 << PCI_IDSEL_VIA686B_BIT) 197 198 #define PCI_ADDR(busno , devno , funno , regno) \ 199 ((PCI_BUILD_BDF(busno, PCI_DEVFN(devno , funno)) << 8) + (regno)) 200 201 typedef struct BonitoState BonitoState; 202 203 struct PCIBonitoState { 204 PCIDevice dev; 205 206 BonitoState *pcihost; 207 uint32_t regs[BONITO_REGS]; 208 209 struct bonldma { 210 uint32_t ldmactrl; 211 uint32_t ldmastat; 212 uint32_t ldmaaddr; 213 uint32_t ldmago; 214 } bonldma; 215 216 /* Based at 1fe00300, bonito Copier */ 217 struct boncop { 218 uint32_t copctrl; 219 uint32_t copstat; 220 uint32_t coppaddr; 221 uint32_t copgo; 222 } boncop; 223 224 /* Bonito registers */ 225 MemoryRegion iomem; 226 MemoryRegion iomem_ldma; 227 MemoryRegion iomem_cop; 228 MemoryRegion bonito_pciio; 229 MemoryRegion bonito_localio; 230 231 }; 232 typedef struct PCIBonitoState PCIBonitoState; 233 234 struct BonitoState { 235 PCIHostState parent_obj; 236 qemu_irq *pic; 237 PCIBonitoState *pci_dev; 238 MemoryRegion pci_mem; 239 }; 240 241 #define TYPE_BONITO_PCI_HOST_BRIDGE "Bonito-pcihost" 242 OBJECT_DECLARE_SIMPLE_TYPE(BonitoState, BONITO_PCI_HOST_BRIDGE) 243 244 #define TYPE_PCI_BONITO "Bonito" 245 OBJECT_DECLARE_SIMPLE_TYPE(PCIBonitoState, PCI_BONITO) 246 247 static void bonito_writel(void *opaque, hwaddr addr, 248 uint64_t val, unsigned size) 249 { 250 PCIBonitoState *s = opaque; 251 uint32_t saddr; 252 int reset = 0; 253 254 saddr = addr >> 2; 255 256 DPRINTF("bonito_writel "TARGET_FMT_plx" val %lx saddr %x\n", 257 addr, val, saddr); 258 switch (saddr) { 259 case BONITO_BONPONCFG: 260 case BONITO_IODEVCFG: 261 case BONITO_SDCFG: 262 case BONITO_PCIMAP: 263 case BONITO_PCIMEMBASECFG: 264 case BONITO_PCIMAP_CFG: 265 case BONITO_GPIODATA: 266 case BONITO_GPIOIE: 267 case BONITO_INTEDGE: 268 case BONITO_INTSTEER: 269 case BONITO_INTPOL: 270 case BONITO_PCIMAIL0: 271 case BONITO_PCIMAIL1: 272 case BONITO_PCIMAIL2: 273 case BONITO_PCIMAIL3: 274 case BONITO_PCICACHECTRL: 275 case BONITO_PCICACHETAG: 276 case BONITO_PCIBADADDR: 277 case BONITO_PCIMSTAT: 278 case BONITO_TIMECFG: 279 case BONITO_CPUCFG: 280 case BONITO_DQCFG: 281 case BONITO_MEMSIZE: 282 s->regs[saddr] = val; 283 break; 284 case BONITO_BONGENCFG: 285 if (!(s->regs[saddr] & 0x04) && (val & 0x04)) { 286 reset = 1; /* bit 2 jump from 0 to 1 cause reset */ 287 } 288 s->regs[saddr] = val; 289 if (reset) { 290 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 291 } 292 break; 293 case BONITO_INTENSET: 294 s->regs[BONITO_INTENSET] = val; 295 s->regs[BONITO_INTEN] |= val; 296 break; 297 case BONITO_INTENCLR: 298 s->regs[BONITO_INTENCLR] = val; 299 s->regs[BONITO_INTEN] &= ~val; 300 break; 301 case BONITO_INTEN: 302 case BONITO_INTISR: 303 DPRINTF("write to readonly bonito register %x\n", saddr); 304 break; 305 default: 306 DPRINTF("write to unknown bonito register %x\n", saddr); 307 break; 308 } 309 } 310 311 static uint64_t bonito_readl(void *opaque, hwaddr addr, 312 unsigned size) 313 { 314 PCIBonitoState *s = opaque; 315 uint32_t saddr; 316 317 saddr = addr >> 2; 318 319 DPRINTF("bonito_readl "TARGET_FMT_plx"\n", addr); 320 switch (saddr) { 321 case BONITO_INTISR: 322 return s->regs[saddr]; 323 default: 324 return s->regs[saddr]; 325 } 326 } 327 328 static const MemoryRegionOps bonito_ops = { 329 .read = bonito_readl, 330 .write = bonito_writel, 331 .endianness = DEVICE_NATIVE_ENDIAN, 332 .valid = { 333 .min_access_size = 4, 334 .max_access_size = 4, 335 }, 336 }; 337 338 static void bonito_pciconf_writel(void *opaque, hwaddr addr, 339 uint64_t val, unsigned size) 340 { 341 PCIBonitoState *s = opaque; 342 PCIDevice *d = PCI_DEVICE(s); 343 344 DPRINTF("bonito_pciconf_writel "TARGET_FMT_plx" val %lx\n", addr, val); 345 d->config_write(d, addr, val, 4); 346 } 347 348 static uint64_t bonito_pciconf_readl(void *opaque, hwaddr addr, 349 unsigned size) 350 { 351 352 PCIBonitoState *s = opaque; 353 PCIDevice *d = PCI_DEVICE(s); 354 355 DPRINTF("bonito_pciconf_readl "TARGET_FMT_plx"\n", addr); 356 return d->config_read(d, addr, 4); 357 } 358 359 /* north bridge PCI configure space. 0x1fe0 0000 - 0x1fe0 00ff */ 360 361 static const MemoryRegionOps bonito_pciconf_ops = { 362 .read = bonito_pciconf_readl, 363 .write = bonito_pciconf_writel, 364 .endianness = DEVICE_NATIVE_ENDIAN, 365 .valid = { 366 .min_access_size = 4, 367 .max_access_size = 4, 368 }, 369 }; 370 371 static uint64_t bonito_ldma_readl(void *opaque, hwaddr addr, 372 unsigned size) 373 { 374 uint32_t val; 375 PCIBonitoState *s = opaque; 376 377 if (addr >= sizeof(s->bonldma)) { 378 return 0; 379 } 380 381 val = ((uint32_t *)(&s->bonldma))[addr / sizeof(uint32_t)]; 382 383 return val; 384 } 385 386 static void bonito_ldma_writel(void *opaque, hwaddr addr, 387 uint64_t val, unsigned size) 388 { 389 PCIBonitoState *s = opaque; 390 391 if (addr >= sizeof(s->bonldma)) { 392 return; 393 } 394 395 ((uint32_t *)(&s->bonldma))[addr / sizeof(uint32_t)] = val & 0xffffffff; 396 } 397 398 static const MemoryRegionOps bonito_ldma_ops = { 399 .read = bonito_ldma_readl, 400 .write = bonito_ldma_writel, 401 .endianness = DEVICE_NATIVE_ENDIAN, 402 .valid = { 403 .min_access_size = 4, 404 .max_access_size = 4, 405 }, 406 }; 407 408 static uint64_t bonito_cop_readl(void *opaque, hwaddr addr, 409 unsigned size) 410 { 411 uint32_t val; 412 PCIBonitoState *s = opaque; 413 414 if (addr >= sizeof(s->boncop)) { 415 return 0; 416 } 417 418 val = ((uint32_t *)(&s->boncop))[addr / sizeof(uint32_t)]; 419 420 return val; 421 } 422 423 static void bonito_cop_writel(void *opaque, hwaddr addr, 424 uint64_t val, unsigned size) 425 { 426 PCIBonitoState *s = opaque; 427 428 if (addr >= sizeof(s->boncop)) { 429 return; 430 } 431 432 ((uint32_t *)(&s->boncop))[addr / sizeof(uint32_t)] = val & 0xffffffff; 433 } 434 435 static const MemoryRegionOps bonito_cop_ops = { 436 .read = bonito_cop_readl, 437 .write = bonito_cop_writel, 438 .endianness = DEVICE_NATIVE_ENDIAN, 439 .valid = { 440 .min_access_size = 4, 441 .max_access_size = 4, 442 }, 443 }; 444 445 static uint32_t bonito_sbridge_pciaddr(void *opaque, hwaddr addr) 446 { 447 PCIBonitoState *s = opaque; 448 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 449 uint32_t cfgaddr; 450 uint32_t idsel; 451 uint32_t devno; 452 uint32_t funno; 453 uint32_t regno; 454 uint32_t pciaddr; 455 456 /* support type0 pci config */ 457 if ((s->regs[BONITO_PCIMAP_CFG] & 0x10000) != 0x0) { 458 return 0xffffffff; 459 } 460 461 cfgaddr = addr & 0xffff; 462 cfgaddr |= (s->regs[BONITO_PCIMAP_CFG] & 0xffff) << 16; 463 464 idsel = (cfgaddr & BONITO_PCICONF_IDSEL_MASK) >> 465 BONITO_PCICONF_IDSEL_OFFSET; 466 devno = ctz32(idsel); 467 funno = (cfgaddr & BONITO_PCICONF_FUN_MASK) >> BONITO_PCICONF_FUN_OFFSET; 468 regno = (cfgaddr & BONITO_PCICONF_REG_MASK) >> BONITO_PCICONF_REG_OFFSET; 469 470 if (idsel == 0) { 471 error_report("error in bonito pci config address 0x" TARGET_FMT_plx 472 ",pcimap_cfg=0x%x", addr, s->regs[BONITO_PCIMAP_CFG]); 473 exit(1); 474 } 475 pciaddr = PCI_ADDR(pci_bus_num(phb->bus), devno, funno, regno); 476 DPRINTF("cfgaddr %x pciaddr %x busno %x devno %d funno %d regno %d\n", 477 cfgaddr, pciaddr, pci_bus_num(phb->bus), devno, funno, regno); 478 479 return pciaddr; 480 } 481 482 static void bonito_spciconf_write(void *opaque, hwaddr addr, uint64_t val, 483 unsigned size) 484 { 485 PCIBonitoState *s = opaque; 486 PCIDevice *d = PCI_DEVICE(s); 487 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 488 uint32_t pciaddr; 489 uint16_t status; 490 491 DPRINTF("bonito_spciconf_write "TARGET_FMT_plx" size %d val %lx\n", 492 addr, size, val); 493 494 pciaddr = bonito_sbridge_pciaddr(s, addr); 495 496 if (pciaddr == 0xffffffff) { 497 return; 498 } 499 500 /* set the pci address in s->config_reg */ 501 phb->config_reg = (pciaddr) | (1u << 31); 502 pci_data_write(phb->bus, phb->config_reg, val, size); 503 504 /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */ 505 status = pci_get_word(d->config + PCI_STATUS); 506 status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); 507 pci_set_word(d->config + PCI_STATUS, status); 508 } 509 510 static uint64_t bonito_spciconf_read(void *opaque, hwaddr addr, unsigned size) 511 { 512 PCIBonitoState *s = opaque; 513 PCIDevice *d = PCI_DEVICE(s); 514 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 515 uint32_t pciaddr; 516 uint16_t status; 517 518 DPRINTF("bonito_spciconf_read "TARGET_FMT_plx" size %d\n", addr, size); 519 520 pciaddr = bonito_sbridge_pciaddr(s, addr); 521 522 if (pciaddr == 0xffffffff) { 523 return MAKE_64BIT_MASK(0, size * 8); 524 } 525 526 /* set the pci address in s->config_reg */ 527 phb->config_reg = (pciaddr) | (1u << 31); 528 529 /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */ 530 status = pci_get_word(d->config + PCI_STATUS); 531 status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); 532 pci_set_word(d->config + PCI_STATUS, status); 533 534 return pci_data_read(phb->bus, phb->config_reg, size); 535 } 536 537 /* south bridge PCI configure space. 0x1fe8 0000 - 0x1fef ffff */ 538 static const MemoryRegionOps bonito_spciconf_ops = { 539 .read = bonito_spciconf_read, 540 .write = bonito_spciconf_write, 541 .valid.min_access_size = 1, 542 .valid.max_access_size = 4, 543 .impl.min_access_size = 1, 544 .impl.max_access_size = 4, 545 .endianness = DEVICE_NATIVE_ENDIAN, 546 }; 547 548 #define BONITO_IRQ_BASE 32 549 550 static void pci_bonito_set_irq(void *opaque, int irq_num, int level) 551 { 552 BonitoState *s = opaque; 553 qemu_irq *pic = s->pic; 554 PCIBonitoState *bonito_state = s->pci_dev; 555 int internal_irq = irq_num - BONITO_IRQ_BASE; 556 557 if (bonito_state->regs[BONITO_INTEDGE] & (1 << internal_irq)) { 558 qemu_irq_pulse(*pic); 559 } else { /* level triggered */ 560 if (bonito_state->regs[BONITO_INTPOL] & (1 << internal_irq)) { 561 qemu_irq_raise(*pic); 562 } else { 563 qemu_irq_lower(*pic); 564 } 565 } 566 } 567 568 /* map the original irq (0~3) to bonito irq (16~47, but 16~31 are unused) */ 569 static int pci_bonito_map_irq(PCIDevice *pci_dev, int irq_num) 570 { 571 int slot; 572 573 slot = PCI_SLOT(pci_dev->devfn); 574 575 switch (slot) { 576 case 5: /* FULOONG2E_VIA_SLOT, SouthBridge, IDE, USB, ACPI, AC97, MC97 */ 577 return irq_num % 4 + BONITO_IRQ_BASE; 578 case 6: /* FULOONG2E_ATI_SLOT, VGA */ 579 return 4 + BONITO_IRQ_BASE; 580 case 7: /* FULOONG2E_RTL_SLOT, RTL8139 */ 581 return 5 + BONITO_IRQ_BASE; 582 case 8 ... 12: /* PCI slot 1 to 4 */ 583 return (slot - 8 + irq_num) + 6 + BONITO_IRQ_BASE; 584 default: /* Unknown device, don't do any translation */ 585 return irq_num; 586 } 587 } 588 589 static void bonito_reset(void *opaque) 590 { 591 PCIBonitoState *s = opaque; 592 uint32_t val = 0; 593 594 /* set the default value of north bridge registers */ 595 596 s->regs[BONITO_BONPONCFG] = 0xc40; 597 val = FIELD_DP32(val, BONGENCFG, PCIQUEUE, 1); 598 val = FIELD_DP32(val, BONGENCFG, WRITEBEHIND, 1); 599 val = FIELD_DP32(val, BONGENCFG, PREFETCH, 1); 600 val = FIELD_DP32(val, BONGENCFG, UNCACHED, 1); 601 val = FIELD_DP32(val, BONGENCFG, CPUSELFRESET, 1); 602 s->regs[BONITO_BONGENCFG] = val; 603 604 s->regs[BONITO_IODEVCFG] = 0x2bff8010; 605 s->regs[BONITO_SDCFG] = 0x255e0091; 606 607 s->regs[BONITO_GPIODATA] = 0x1ff; 608 s->regs[BONITO_GPIOIE] = 0x1ff; 609 s->regs[BONITO_DQCFG] = 0x8; 610 s->regs[BONITO_MEMSIZE] = 0x10000000; 611 s->regs[BONITO_PCIMAP] = 0x6140; 612 } 613 614 static const VMStateDescription vmstate_bonito = { 615 .name = "Bonito", 616 .version_id = 1, 617 .minimum_version_id = 1, 618 .fields = (VMStateField[]) { 619 VMSTATE_PCI_DEVICE(dev, PCIBonitoState), 620 VMSTATE_END_OF_LIST() 621 } 622 }; 623 624 static void bonito_pcihost_realize(DeviceState *dev, Error **errp) 625 { 626 PCIHostState *phb = PCI_HOST_BRIDGE(dev); 627 BonitoState *bs = BONITO_PCI_HOST_BRIDGE(dev); 628 MemoryRegion *pcimem_lo_alias = g_new(MemoryRegion, 3); 629 630 memory_region_init(&bs->pci_mem, OBJECT(dev), "pci.mem", BONITO_PCIHI_SIZE); 631 phb->bus = pci_register_root_bus(dev, "pci", 632 pci_bonito_set_irq, pci_bonito_map_irq, 633 dev, &bs->pci_mem, get_system_io(), 634 PCI_DEVFN(5, 0), 32, TYPE_PCI_BUS); 635 636 for (size_t i = 0; i < 3; i++) { 637 char *name = g_strdup_printf("pci.lomem%zu", i); 638 639 memory_region_init_alias(&pcimem_lo_alias[i], NULL, name, 640 &bs->pci_mem, i * 64 * MiB, 64 * MiB); 641 memory_region_add_subregion(get_system_memory(), 642 BONITO_PCILO_BASE + i * 64 * MiB, 643 &pcimem_lo_alias[i]); 644 g_free(name); 645 } 646 647 create_unimplemented_device("pci.io", BONITO_PCIIO_BASE, 1 * MiB); 648 } 649 650 static void bonito_realize(PCIDevice *dev, Error **errp) 651 { 652 PCIBonitoState *s = PCI_BONITO(dev); 653 SysBusDevice *sysbus = SYS_BUS_DEVICE(s->pcihost); 654 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 655 BonitoState *bs = BONITO_PCI_HOST_BRIDGE(s->pcihost); 656 MemoryRegion *pcimem_alias = g_new(MemoryRegion, 1); 657 658 /* 659 * Bonito North Bridge, built on FPGA, 660 * VENDOR_ID/DEVICE_ID are "undefined" 661 */ 662 pci_config_set_prog_interface(dev->config, 0x00); 663 664 /* set the north bridge register mapping */ 665 memory_region_init_io(&s->iomem, OBJECT(s), &bonito_ops, s, 666 "north-bridge-register", BONITO_INTERNAL_REG_SIZE); 667 sysbus_init_mmio(sysbus, &s->iomem); 668 sysbus_mmio_map(sysbus, 0, BONITO_INTERNAL_REG_BASE); 669 670 /* set the north bridge pci configure mapping */ 671 memory_region_init_io(&phb->conf_mem, OBJECT(s), &bonito_pciconf_ops, s, 672 "north-bridge-pci-config", BONITO_PCICONFIG_SIZE); 673 sysbus_init_mmio(sysbus, &phb->conf_mem); 674 sysbus_mmio_map(sysbus, 1, BONITO_PCICONFIG_BASE); 675 676 /* set the south bridge pci configure mapping */ 677 memory_region_init_io(&phb->data_mem, OBJECT(s), &bonito_spciconf_ops, s, 678 "south-bridge-pci-config", BONITO_SPCICONFIG_SIZE); 679 sysbus_init_mmio(sysbus, &phb->data_mem); 680 sysbus_mmio_map(sysbus, 2, BONITO_SPCICONFIG_BASE); 681 682 create_unimplemented_device("bonito", BONITO_REG_BASE, BONITO_REG_SIZE); 683 684 memory_region_init_io(&s->iomem_ldma, OBJECT(s), &bonito_ldma_ops, s, 685 "ldma", 0x100); 686 sysbus_init_mmio(sysbus, &s->iomem_ldma); 687 sysbus_mmio_map(sysbus, 3, 0x1fe00200); 688 689 /* PCI copier */ 690 memory_region_init_io(&s->iomem_cop, OBJECT(s), &bonito_cop_ops, s, 691 "cop", 0x100); 692 sysbus_init_mmio(sysbus, &s->iomem_cop); 693 sysbus_mmio_map(sysbus, 4, 0x1fe00300); 694 695 create_unimplemented_device("ROMCS", BONITO_FLASH_BASE, 60 * MiB); 696 697 /* Map PCI IO Space 0x1fd0 0000 - 0x1fd1 0000 */ 698 memory_region_init_alias(&s->bonito_pciio, OBJECT(s), "isa_mmio", 699 get_system_io(), 0, BONITO_PCIIO_SIZE); 700 sysbus_init_mmio(sysbus, &s->bonito_pciio); 701 sysbus_mmio_map(sysbus, 5, BONITO_PCIIO_BASE); 702 703 /* add pci local io mapping */ 704 705 memory_region_init_alias(&s->bonito_localio, OBJECT(s), "IOCS[0]", 706 get_system_io(), 0, 256 * KiB); 707 sysbus_init_mmio(sysbus, &s->bonito_localio); 708 sysbus_mmio_map(sysbus, 6, BONITO_DEV_BASE); 709 create_unimplemented_device("IOCS[1]", BONITO_DEV_BASE + 1 * 256 * KiB, 710 256 * KiB); 711 create_unimplemented_device("IOCS[2]", BONITO_DEV_BASE + 2 * 256 * KiB, 712 256 * KiB); 713 create_unimplemented_device("IOCS[3]", BONITO_DEV_BASE + 3 * 256 * KiB, 714 256 * KiB); 715 716 memory_region_init_alias(pcimem_alias, NULL, "pci.mem.alias", 717 &bs->pci_mem, 0, BONITO_PCIHI_SIZE); 718 memory_region_add_subregion(get_system_memory(), 719 BONITO_PCIHI_BASE, pcimem_alias); 720 create_unimplemented_device("PCI_2", 721 (hwaddr)BONITO_PCIHI_BASE + BONITO_PCIHI_SIZE, 722 2 * GiB); 723 724 /* set the default value of north bridge pci config */ 725 pci_set_word(dev->config + PCI_COMMAND, 0x0000); 726 pci_set_word(dev->config + PCI_STATUS, 0x0000); 727 pci_set_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID, 0x0000); 728 pci_set_word(dev->config + PCI_SUBSYSTEM_ID, 0x0000); 729 730 pci_set_byte(dev->config + PCI_INTERRUPT_LINE, 0x00); 731 pci_config_set_interrupt_pin(dev->config, 0x01); /* interrupt pin A */ 732 733 pci_set_byte(dev->config + PCI_MIN_GNT, 0x3c); 734 pci_set_byte(dev->config + PCI_MAX_LAT, 0x00); 735 736 qemu_register_reset(bonito_reset, s); 737 } 738 739 PCIBus *bonito_init(qemu_irq *pic) 740 { 741 DeviceState *dev; 742 BonitoState *pcihost; 743 PCIHostState *phb; 744 PCIBonitoState *s; 745 PCIDevice *d; 746 747 dev = qdev_new(TYPE_BONITO_PCI_HOST_BRIDGE); 748 phb = PCI_HOST_BRIDGE(dev); 749 pcihost = BONITO_PCI_HOST_BRIDGE(dev); 750 pcihost->pic = pic; 751 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 752 753 d = pci_new(PCI_DEVFN(0, 0), TYPE_PCI_BONITO); 754 s = PCI_BONITO(d); 755 s->pcihost = pcihost; 756 pcihost->pci_dev = s; 757 pci_realize_and_unref(d, phb->bus, &error_fatal); 758 759 return phb->bus; 760 } 761 762 static void bonito_class_init(ObjectClass *klass, void *data) 763 { 764 DeviceClass *dc = DEVICE_CLASS(klass); 765 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 766 767 k->realize = bonito_realize; 768 k->vendor_id = 0xdf53; 769 k->device_id = 0x00d5; 770 k->revision = 0x01; 771 k->class_id = PCI_CLASS_BRIDGE_HOST; 772 dc->desc = "Host bridge"; 773 dc->vmsd = &vmstate_bonito; 774 /* 775 * PCI-facing part of the host bridge, not usable without the 776 * host-facing part, which can't be device_add'ed, yet. 777 */ 778 dc->user_creatable = false; 779 } 780 781 static const TypeInfo bonito_info = { 782 .name = TYPE_PCI_BONITO, 783 .parent = TYPE_PCI_DEVICE, 784 .instance_size = sizeof(PCIBonitoState), 785 .class_init = bonito_class_init, 786 .interfaces = (InterfaceInfo[]) { 787 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 788 { }, 789 }, 790 }; 791 792 static void bonito_pcihost_class_init(ObjectClass *klass, void *data) 793 { 794 DeviceClass *dc = DEVICE_CLASS(klass); 795 796 dc->realize = bonito_pcihost_realize; 797 } 798 799 static const TypeInfo bonito_pcihost_info = { 800 .name = TYPE_BONITO_PCI_HOST_BRIDGE, 801 .parent = TYPE_PCI_HOST_BRIDGE, 802 .instance_size = sizeof(BonitoState), 803 .class_init = bonito_pcihost_class_init, 804 }; 805 806 static void bonito_register_types(void) 807 { 808 type_register_static(&bonito_pcihost_info); 809 type_register_static(&bonito_info); 810 } 811 812 type_init(bonito_register_types) 813