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_device.h" 46 #include "hw/irq.h" 47 #include "hw/mips/mips.h" 48 #include "hw/pci-host/bonito.h" 49 #include "hw/pci/pci_host.h" 50 #include "migration/vmstate.h" 51 #include "sysemu/runstate.h" 52 #include "hw/misc/unimp.h" 53 #include "hw/registerfields.h" 54 #include "qom/object.h" 55 #include "trace.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 source 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_DS (~3) /* Per datasheet */ 190 #define BONITO_PCICONF_REG_MASK_HW 0xff /* As seen running PMON */ 191 #define BONITO_PCICONF_REG_OFFSET 0 192 193 194 /* idsel BIT = pci slot number +12 */ 195 #define PCI_SLOT_BASE 12 196 #define PCI_IDSEL_VIA686B_BIT (17) 197 #define PCI_IDSEL_VIA686B (1 << PCI_IDSEL_VIA686B_BIT) 198 199 #define PCI_ADDR(busno , devno , funno , regno) \ 200 ((PCI_BUILD_BDF(busno, PCI_DEVFN(devno , funno)) << 8) + (regno)) 201 202 typedef struct BonitoState BonitoState; 203 204 struct PCIBonitoState { 205 PCIDevice dev; 206 207 BonitoState *pcihost; 208 uint32_t regs[BONITO_REGS]; 209 210 struct bonldma { 211 uint32_t ldmactrl; 212 uint32_t ldmastat; 213 uint32_t ldmaaddr; 214 uint32_t ldmago; 215 } bonldma; 216 217 /* Based at 1fe00300, bonito Copier */ 218 struct boncop { 219 uint32_t copctrl; 220 uint32_t copstat; 221 uint32_t coppaddr; 222 uint32_t copgo; 223 } boncop; 224 225 /* Bonito registers */ 226 MemoryRegion iomem; 227 MemoryRegion iomem_ldma; 228 MemoryRegion iomem_cop; 229 MemoryRegion bonito_pciio; 230 MemoryRegion bonito_localio; 231 232 }; 233 typedef struct PCIBonitoState PCIBonitoState; 234 235 struct BonitoState { 236 PCIHostState parent_obj; 237 qemu_irq *pic; 238 PCIBonitoState *pci_dev; 239 MemoryRegion pci_mem; 240 }; 241 242 #define TYPE_PCI_BONITO "Bonito" 243 OBJECT_DECLARE_SIMPLE_TYPE(PCIBonitoState, PCI_BONITO) 244 245 static void bonito_writel(void *opaque, hwaddr addr, 246 uint64_t val, unsigned size) 247 { 248 PCIBonitoState *s = opaque; 249 uint32_t saddr; 250 int reset = 0; 251 252 saddr = addr >> 2; 253 254 DPRINTF("bonito_writel "HWADDR_FMT_plx" val %lx saddr %x\n", 255 addr, val, saddr); 256 switch (saddr) { 257 case BONITO_BONPONCFG: 258 case BONITO_IODEVCFG: 259 case BONITO_SDCFG: 260 case BONITO_PCIMAP: 261 case BONITO_PCIMEMBASECFG: 262 case BONITO_PCIMAP_CFG: 263 case BONITO_GPIODATA: 264 case BONITO_GPIOIE: 265 case BONITO_INTEDGE: 266 case BONITO_INTSTEER: 267 case BONITO_INTPOL: 268 case BONITO_PCIMAIL0: 269 case BONITO_PCIMAIL1: 270 case BONITO_PCIMAIL2: 271 case BONITO_PCIMAIL3: 272 case BONITO_PCICACHECTRL: 273 case BONITO_PCICACHETAG: 274 case BONITO_PCIBADADDR: 275 case BONITO_PCIMSTAT: 276 case BONITO_TIMECFG: 277 case BONITO_CPUCFG: 278 case BONITO_DQCFG: 279 case BONITO_MEMSIZE: 280 s->regs[saddr] = val; 281 break; 282 case BONITO_BONGENCFG: 283 if (!(s->regs[saddr] & 0x04) && (val & 0x04)) { 284 reset = 1; /* bit 2 jump from 0 to 1 cause reset */ 285 } 286 s->regs[saddr] = val; 287 if (reset) { 288 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 289 } 290 break; 291 case BONITO_INTENSET: 292 s->regs[BONITO_INTENSET] = val; 293 s->regs[BONITO_INTEN] |= val; 294 break; 295 case BONITO_INTENCLR: 296 s->regs[BONITO_INTENCLR] = val; 297 s->regs[BONITO_INTEN] &= ~val; 298 break; 299 case BONITO_INTEN: 300 case BONITO_INTISR: 301 DPRINTF("write to readonly bonito register %x\n", saddr); 302 break; 303 default: 304 DPRINTF("write to unknown bonito register %x\n", saddr); 305 break; 306 } 307 } 308 309 static uint64_t bonito_readl(void *opaque, hwaddr addr, 310 unsigned size) 311 { 312 PCIBonitoState *s = opaque; 313 uint32_t saddr; 314 315 saddr = addr >> 2; 316 317 DPRINTF("bonito_readl "HWADDR_FMT_plx"\n", addr); 318 switch (saddr) { 319 case BONITO_INTISR: 320 return s->regs[saddr]; 321 default: 322 return s->regs[saddr]; 323 } 324 } 325 326 static const MemoryRegionOps bonito_ops = { 327 .read = bonito_readl, 328 .write = bonito_writel, 329 .endianness = DEVICE_NATIVE_ENDIAN, 330 .valid = { 331 .min_access_size = 4, 332 .max_access_size = 4, 333 }, 334 }; 335 336 static void bonito_pciconf_writel(void *opaque, hwaddr addr, 337 uint64_t val, unsigned size) 338 { 339 PCIBonitoState *s = opaque; 340 PCIDevice *d = PCI_DEVICE(s); 341 342 DPRINTF("bonito_pciconf_writel "HWADDR_FMT_plx" val %lx\n", addr, val); 343 d->config_write(d, addr, val, 4); 344 } 345 346 static uint64_t bonito_pciconf_readl(void *opaque, hwaddr addr, 347 unsigned size) 348 { 349 350 PCIBonitoState *s = opaque; 351 PCIDevice *d = PCI_DEVICE(s); 352 353 DPRINTF("bonito_pciconf_readl "HWADDR_FMT_plx"\n", addr); 354 return d->config_read(d, addr, 4); 355 } 356 357 /* north bridge PCI configure space. 0x1fe0 0000 - 0x1fe0 00ff */ 358 359 static const MemoryRegionOps bonito_pciconf_ops = { 360 .read = bonito_pciconf_readl, 361 .write = bonito_pciconf_writel, 362 .endianness = DEVICE_NATIVE_ENDIAN, 363 .valid = { 364 .min_access_size = 4, 365 .max_access_size = 4, 366 }, 367 }; 368 369 static uint64_t bonito_ldma_readl(void *opaque, hwaddr addr, 370 unsigned size) 371 { 372 uint32_t val; 373 PCIBonitoState *s = opaque; 374 375 if (addr >= sizeof(s->bonldma)) { 376 return 0; 377 } 378 379 val = ((uint32_t *)(&s->bonldma))[addr / sizeof(uint32_t)]; 380 381 return val; 382 } 383 384 static void bonito_ldma_writel(void *opaque, hwaddr addr, 385 uint64_t val, unsigned size) 386 { 387 PCIBonitoState *s = opaque; 388 389 if (addr >= sizeof(s->bonldma)) { 390 return; 391 } 392 393 ((uint32_t *)(&s->bonldma))[addr / sizeof(uint32_t)] = val & 0xffffffff; 394 } 395 396 static const MemoryRegionOps bonito_ldma_ops = { 397 .read = bonito_ldma_readl, 398 .write = bonito_ldma_writel, 399 .endianness = DEVICE_NATIVE_ENDIAN, 400 .valid = { 401 .min_access_size = 4, 402 .max_access_size = 4, 403 }, 404 }; 405 406 static uint64_t bonito_cop_readl(void *opaque, hwaddr addr, 407 unsigned size) 408 { 409 uint32_t val; 410 PCIBonitoState *s = opaque; 411 412 if (addr >= sizeof(s->boncop)) { 413 return 0; 414 } 415 416 val = ((uint32_t *)(&s->boncop))[addr / sizeof(uint32_t)]; 417 418 return val; 419 } 420 421 static void bonito_cop_writel(void *opaque, hwaddr addr, 422 uint64_t val, unsigned size) 423 { 424 PCIBonitoState *s = opaque; 425 426 if (addr >= sizeof(s->boncop)) { 427 return; 428 } 429 430 ((uint32_t *)(&s->boncop))[addr / sizeof(uint32_t)] = val & 0xffffffff; 431 } 432 433 static const MemoryRegionOps bonito_cop_ops = { 434 .read = bonito_cop_readl, 435 .write = bonito_cop_writel, 436 .endianness = DEVICE_NATIVE_ENDIAN, 437 .valid = { 438 .min_access_size = 4, 439 .max_access_size = 4, 440 }, 441 }; 442 443 static uint32_t bonito_sbridge_pciaddr(void *opaque, hwaddr addr) 444 { 445 PCIBonitoState *s = opaque; 446 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 447 uint32_t cfgaddr; 448 uint32_t idsel; 449 uint32_t devno; 450 uint32_t funno; 451 uint32_t regno; 452 uint32_t pciaddr; 453 454 /* support type0 pci config */ 455 if ((s->regs[BONITO_PCIMAP_CFG] & 0x10000) != 0x0) { 456 return 0xffffffff; 457 } 458 459 cfgaddr = addr & 0xffff; 460 cfgaddr |= (s->regs[BONITO_PCIMAP_CFG] & 0xffff) << 16; 461 462 idsel = (cfgaddr & BONITO_PCICONF_IDSEL_MASK) >> 463 BONITO_PCICONF_IDSEL_OFFSET; 464 devno = ctz32(idsel); 465 funno = (cfgaddr & BONITO_PCICONF_FUN_MASK) >> BONITO_PCICONF_FUN_OFFSET; 466 regno = (cfgaddr & BONITO_PCICONF_REG_MASK_HW) >> BONITO_PCICONF_REG_OFFSET; 467 468 if (idsel == 0) { 469 error_report("error in bonito pci config address 0x" HWADDR_FMT_plx 470 ",pcimap_cfg=0x%x", addr, s->regs[BONITO_PCIMAP_CFG]); 471 exit(1); 472 } 473 pciaddr = PCI_ADDR(pci_bus_num(phb->bus), devno, funno, regno); 474 DPRINTF("cfgaddr %x pciaddr %x busno %x devno %d funno %d regno %d\n", 475 cfgaddr, pciaddr, pci_bus_num(phb->bus), devno, funno, regno); 476 477 return pciaddr; 478 } 479 480 static void bonito_spciconf_write(void *opaque, hwaddr addr, uint64_t val, 481 unsigned size) 482 { 483 PCIBonitoState *s = opaque; 484 PCIDevice *d = PCI_DEVICE(s); 485 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 486 uint32_t pciaddr; 487 uint16_t status; 488 489 DPRINTF("bonito_spciconf_write "HWADDR_FMT_plx" size %d val %lx\n", 490 addr, size, val); 491 492 pciaddr = bonito_sbridge_pciaddr(s, addr); 493 494 if (pciaddr == 0xffffffff) { 495 return; 496 } 497 if (addr & ~BONITO_PCICONF_REG_MASK_DS) { 498 trace_bonito_spciconf_small_access(addr, size); 499 } 500 501 /* set the pci address in s->config_reg */ 502 phb->config_reg = (pciaddr) | (1u << 31); 503 pci_data_write(phb->bus, phb->config_reg, val, size); 504 505 /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */ 506 status = pci_get_word(d->config + PCI_STATUS); 507 status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); 508 pci_set_word(d->config + PCI_STATUS, status); 509 } 510 511 static uint64_t bonito_spciconf_read(void *opaque, hwaddr addr, unsigned size) 512 { 513 PCIBonitoState *s = opaque; 514 PCIDevice *d = PCI_DEVICE(s); 515 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 516 uint32_t pciaddr; 517 uint16_t status; 518 519 DPRINTF("bonito_spciconf_read "HWADDR_FMT_plx" size %d\n", addr, size); 520 521 pciaddr = bonito_sbridge_pciaddr(s, addr); 522 523 if (pciaddr == 0xffffffff) { 524 return MAKE_64BIT_MASK(0, size * 8); 525 } 526 if (addr & ~BONITO_PCICONF_REG_MASK_DS) { 527 trace_bonito_spciconf_small_access(addr, size); 528 } 529 530 /* set the pci address in s->config_reg */ 531 phb->config_reg = (pciaddr) | (1u << 31); 532 533 /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */ 534 status = pci_get_word(d->config + PCI_STATUS); 535 status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); 536 pci_set_word(d->config + PCI_STATUS, status); 537 538 return pci_data_read(phb->bus, phb->config_reg, size); 539 } 540 541 /* south bridge PCI configure space. 0x1fe8 0000 - 0x1fef ffff */ 542 static const MemoryRegionOps bonito_spciconf_ops = { 543 .read = bonito_spciconf_read, 544 .write = bonito_spciconf_write, 545 .valid.min_access_size = 1, 546 .valid.max_access_size = 4, 547 .impl.min_access_size = 1, 548 .impl.max_access_size = 4, 549 .endianness = DEVICE_NATIVE_ENDIAN, 550 }; 551 552 #define BONITO_IRQ_BASE 32 553 554 static void pci_bonito_set_irq(void *opaque, int irq_num, int level) 555 { 556 BonitoState *s = opaque; 557 qemu_irq *pic = s->pic; 558 PCIBonitoState *bonito_state = s->pci_dev; 559 int internal_irq = irq_num - BONITO_IRQ_BASE; 560 561 if (bonito_state->regs[BONITO_INTEDGE] & (1 << internal_irq)) { 562 qemu_irq_pulse(*pic); 563 } else { /* level triggered */ 564 if (bonito_state->regs[BONITO_INTPOL] & (1 << internal_irq)) { 565 qemu_irq_raise(*pic); 566 } else { 567 qemu_irq_lower(*pic); 568 } 569 } 570 } 571 572 /* map the original irq (0~3) to bonito irq (16~47, but 16~31 are unused) */ 573 static int pci_bonito_map_irq(PCIDevice *pci_dev, int irq_num) 574 { 575 int slot; 576 577 slot = PCI_SLOT(pci_dev->devfn); 578 579 switch (slot) { 580 case 5: /* FULOONG2E_VIA_SLOT, SouthBridge, IDE, USB, ACPI, AC97, MC97 */ 581 return irq_num % 4 + BONITO_IRQ_BASE; 582 case 6: /* FULOONG2E_ATI_SLOT, VGA */ 583 return 4 + BONITO_IRQ_BASE; 584 case 7: /* FULOONG2E_RTL_SLOT, RTL8139 */ 585 return 5 + BONITO_IRQ_BASE; 586 case 8 ... 12: /* PCI slot 1 to 4 */ 587 return (slot - 8 + irq_num) + 6 + BONITO_IRQ_BASE; 588 default: /* Unknown device, don't do any translation */ 589 return irq_num; 590 } 591 } 592 593 static void bonito_reset_hold(Object *obj) 594 { 595 PCIBonitoState *s = PCI_BONITO(obj); 596 uint32_t val = 0; 597 598 /* set the default value of north bridge registers */ 599 600 s->regs[BONITO_BONPONCFG] = 0xc40; 601 val = FIELD_DP32(val, BONGENCFG, PCIQUEUE, 1); 602 val = FIELD_DP32(val, BONGENCFG, WRITEBEHIND, 1); 603 val = FIELD_DP32(val, BONGENCFG, PREFETCH, 1); 604 val = FIELD_DP32(val, BONGENCFG, UNCACHED, 1); 605 val = FIELD_DP32(val, BONGENCFG, CPUSELFRESET, 1); 606 s->regs[BONITO_BONGENCFG] = val; 607 608 s->regs[BONITO_IODEVCFG] = 0x2bff8010; 609 s->regs[BONITO_SDCFG] = 0x255e0091; 610 611 s->regs[BONITO_GPIODATA] = 0x1ff; 612 s->regs[BONITO_GPIOIE] = 0x1ff; 613 s->regs[BONITO_DQCFG] = 0x8; 614 s->regs[BONITO_MEMSIZE] = 0x10000000; 615 s->regs[BONITO_PCIMAP] = 0x6140; 616 } 617 618 static const VMStateDescription vmstate_bonito = { 619 .name = "Bonito", 620 .version_id = 1, 621 .minimum_version_id = 1, 622 .fields = (VMStateField[]) { 623 VMSTATE_PCI_DEVICE(dev, PCIBonitoState), 624 VMSTATE_END_OF_LIST() 625 } 626 }; 627 628 static void bonito_host_realize(DeviceState *dev, Error **errp) 629 { 630 PCIHostState *phb = PCI_HOST_BRIDGE(dev); 631 BonitoState *bs = BONITO_PCI_HOST_BRIDGE(dev); 632 MemoryRegion *pcimem_lo_alias = g_new(MemoryRegion, 3); 633 634 memory_region_init(&bs->pci_mem, OBJECT(dev), "pci.mem", BONITO_PCIHI_SIZE); 635 phb->bus = pci_register_root_bus(dev, "pci", 636 pci_bonito_set_irq, pci_bonito_map_irq, 637 dev, &bs->pci_mem, get_system_io(), 638 PCI_DEVFN(5, 0), 32, TYPE_PCI_BUS); 639 640 for (size_t i = 0; i < 3; i++) { 641 char *name = g_strdup_printf("pci.lomem%zu", i); 642 643 memory_region_init_alias(&pcimem_lo_alias[i], NULL, name, 644 &bs->pci_mem, i * 64 * MiB, 64 * MiB); 645 memory_region_add_subregion(get_system_memory(), 646 BONITO_PCILO_BASE + i * 64 * MiB, 647 &pcimem_lo_alias[i]); 648 g_free(name); 649 } 650 651 create_unimplemented_device("pci.io", BONITO_PCIIO_BASE, 1 * MiB); 652 } 653 654 static void bonito_pci_realize(PCIDevice *dev, Error **errp) 655 { 656 PCIBonitoState *s = PCI_BONITO(dev); 657 MemoryRegion *host_mem = get_system_memory(); 658 PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); 659 BonitoState *bs = s->pcihost; 660 MemoryRegion *pcimem_alias = g_new(MemoryRegion, 1); 661 662 /* 663 * Bonito North Bridge, built on FPGA, 664 * VENDOR_ID/DEVICE_ID are "undefined" 665 */ 666 pci_config_set_prog_interface(dev->config, 0x00); 667 668 /* set the north bridge register mapping */ 669 memory_region_init_io(&s->iomem, OBJECT(s), &bonito_ops, s, 670 "north-bridge-register", BONITO_INTERNAL_REG_SIZE); 671 memory_region_add_subregion(host_mem, BONITO_INTERNAL_REG_BASE, &s->iomem); 672 673 /* set the north bridge pci configure mapping */ 674 memory_region_init_io(&phb->conf_mem, OBJECT(s), &bonito_pciconf_ops, s, 675 "north-bridge-pci-config", BONITO_PCICONFIG_SIZE); 676 memory_region_add_subregion(host_mem, BONITO_PCICONFIG_BASE, 677 &phb->conf_mem); 678 679 /* set the south bridge pci configure mapping */ 680 memory_region_init_io(&phb->data_mem, OBJECT(s), &bonito_spciconf_ops, s, 681 "south-bridge-pci-config", BONITO_SPCICONFIG_SIZE); 682 memory_region_add_subregion(host_mem, BONITO_SPCICONFIG_BASE, 683 &phb->data_mem); 684 685 create_unimplemented_device("bonito", BONITO_REG_BASE, BONITO_REG_SIZE); 686 687 memory_region_init_io(&s->iomem_ldma, OBJECT(s), &bonito_ldma_ops, s, 688 "ldma", 0x100); 689 memory_region_add_subregion(host_mem, 0x1fe00200, &s->iomem_ldma); 690 691 /* PCI copier */ 692 memory_region_init_io(&s->iomem_cop, OBJECT(s), &bonito_cop_ops, s, 693 "cop", 0x100); 694 memory_region_add_subregion(host_mem, 0x1fe00300, &s->iomem_cop); 695 696 create_unimplemented_device("ROMCS", BONITO_FLASH_BASE, 60 * MiB); 697 698 /* Map PCI IO Space 0x1fd0 0000 - 0x1fd1 0000 */ 699 memory_region_init_alias(&s->bonito_pciio, OBJECT(s), "isa_mmio", 700 get_system_io(), 0, BONITO_PCIIO_SIZE); 701 memory_region_add_subregion(host_mem, BONITO_PCIIO_BASE, 702 &s->bonito_pciio); 703 704 /* add pci local io mapping */ 705 706 memory_region_init_alias(&s->bonito_localio, OBJECT(s), "IOCS[0]", 707 get_system_io(), 0, 256 * KiB); 708 memory_region_add_subregion(host_mem, BONITO_DEV_BASE, 709 &s->bonito_localio); 710 create_unimplemented_device("IOCS[1]", BONITO_DEV_BASE + 1 * 256 * KiB, 711 256 * KiB); 712 create_unimplemented_device("IOCS[2]", BONITO_DEV_BASE + 2 * 256 * KiB, 713 256 * KiB); 714 create_unimplemented_device("IOCS[3]", BONITO_DEV_BASE + 3 * 256 * KiB, 715 256 * KiB); 716 717 memory_region_init_alias(pcimem_alias, NULL, "pci.mem.alias", 718 &bs->pci_mem, 0, BONITO_PCIHI_SIZE); 719 memory_region_add_subregion(host_mem, 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 } 736 737 PCIBus *bonito_init(qemu_irq *pic) 738 { 739 DeviceState *dev; 740 BonitoState *pcihost; 741 PCIHostState *phb; 742 PCIBonitoState *s; 743 PCIDevice *d; 744 745 dev = qdev_new(TYPE_BONITO_PCI_HOST_BRIDGE); 746 phb = PCI_HOST_BRIDGE(dev); 747 pcihost = BONITO_PCI_HOST_BRIDGE(dev); 748 pcihost->pic = pic; 749 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 750 751 d = pci_new(PCI_DEVFN(0, 0), TYPE_PCI_BONITO); 752 s = PCI_BONITO(d); 753 s->pcihost = pcihost; 754 pcihost->pci_dev = s; 755 pci_realize_and_unref(d, phb->bus, &error_fatal); 756 757 return phb->bus; 758 } 759 760 static void bonito_pci_class_init(ObjectClass *klass, void *data) 761 { 762 DeviceClass *dc = DEVICE_CLASS(klass); 763 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 764 ResettableClass *rc = RESETTABLE_CLASS(klass); 765 766 rc->phases.hold = bonito_reset_hold; 767 k->realize = bonito_pci_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_pci_info = { 782 .name = TYPE_PCI_BONITO, 783 .parent = TYPE_PCI_DEVICE, 784 .instance_size = sizeof(PCIBonitoState), 785 .class_init = bonito_pci_class_init, 786 .interfaces = (InterfaceInfo[]) { 787 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 788 { }, 789 }, 790 }; 791 792 static void bonito_host_class_init(ObjectClass *klass, void *data) 793 { 794 DeviceClass *dc = DEVICE_CLASS(klass); 795 796 dc->realize = bonito_host_realize; 797 } 798 799 static const TypeInfo bonito_host_info = { 800 .name = TYPE_BONITO_PCI_HOST_BRIDGE, 801 .parent = TYPE_PCI_HOST_BRIDGE, 802 .instance_size = sizeof(BonitoState), 803 .class_init = bonito_host_class_init, 804 }; 805 806 static void bonito_register_types(void) 807 { 808 type_register_static(&bonito_host_info); 809 type_register_static(&bonito_pci_info); 810 } 811 812 type_init(bonito_register_types) 813