hw/bonito.c

   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  * fulong 2e mini pc has a bonito north bridge.
  15  */
  16
  17 /* what is the meaning of devfn in qemu and IDSEL in bonito northbridge?
  18  *
  19  * devfn   pci_slot<<3  + funno
  20  * one pci bus can have 32 devices and each device can have 8 functions.
  21  *
  22  * In bonito north bridge, pci slot = IDSEL bit - 12.
  23  * For example, PCI_IDSEL_VIA686B = 17,
  24  * pci slot = 17-12=5
  25  *
  26  * so
  27  * VT686B_FUN0's devfn = (5<<3)+0
  28  * VT686B_FUN1's devfn = (5<<3)+1
  29  *
  30  * qemu also uses pci address for north bridge to access pci config register.
  31  * bus_no   [23:16]
  32  * dev_no   [15:11]
  33  * fun_no   [10:8]
  34  * reg_no   [7:2]
  35  *
  36  * so function bonito_sbridge_pciaddr for the translation from
  37  * north bridge address to pci address.
  38  */
  39
  40 #include <assert.h>
  41
  42 #include "hw.h"
  43 #include "pci.h"
  44 #include "pc.h"
  45 #include "mips.h"
  46 #include "pci_host.h"
  47 #include "sysemu.h"
  48 #include "exec-memory.h"
  49
  50 //#define DEBUG_BONITO
  51
  52 #ifdef DEBUG_BONITO
  53 #define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
  54 #else
  55 #define DPRINTF(fmt, ...)
  56 #endif
  57
  58 /* from linux soure code. include/asm-mips/mips-boards/bonito64.h*/
  59 #define BONITO_BOOT_BASE        0x1fc00000
  60 #define BONITO_BOOT_SIZE        0x00100000
  61 #define BONITO_BOOT_TOP         (BONITO_BOOT_BASE+BONITO_BOOT_SIZE-1)
  62 #define BONITO_FLASH_BASE       0x1c000000
  63 #define BONITO_FLASH_SIZE       0x03000000
  64 #define BONITO_FLASH_TOP        (BONITO_FLASH_BASE+BONITO_FLASH_SIZE-1)
  65 #define BONITO_SOCKET_BASE      0x1f800000
  66 #define BONITO_SOCKET_SIZE      0x00400000
  67 #define BONITO_SOCKET_TOP       (BONITO_SOCKET_BASE+BONITO_SOCKET_SIZE-1)
  68 #define BONITO_REG_BASE         0x1fe00000
  69 #define BONITO_REG_SIZE         0x00040000
  70 #define BONITO_REG_TOP          (BONITO_REG_BASE+BONITO_REG_SIZE-1)
  71 #define BONITO_DEV_BASE         0x1ff00000
  72 #define BONITO_DEV_SIZE         0x00100000
  73 #define BONITO_DEV_TOP          (BONITO_DEV_BASE+BONITO_DEV_SIZE-1)
  74 #define BONITO_PCILO_BASE       0x10000000
  75 #define BONITO_PCILO_BASE_VA    0xb0000000
  76 #define BONITO_PCILO_SIZE       0x0c000000
  77 #define BONITO_PCILO_TOP        (BONITO_PCILO_BASE+BONITO_PCILO_SIZE-1)
  78 #define BONITO_PCILO0_BASE      0x10000000
  79 #define BONITO_PCILO1_BASE      0x14000000
  80 #define BONITO_PCILO2_BASE      0x18000000
  81 #define BONITO_PCIHI_BASE       0x20000000
  82 #define BONITO_PCIHI_SIZE       0x20000000
  83 #define BONITO_PCIHI_TOP        (BONITO_PCIHI_BASE+BONITO_PCIHI_SIZE-1)
  84 #define BONITO_PCIIO_BASE       0x1fd00000
  85 #define BONITO_PCIIO_BASE_VA    0xbfd00000
  86 #define BONITO_PCIIO_SIZE       0x00010000
  87 #define BONITO_PCIIO_TOP        (BONITO_PCIIO_BASE+BONITO_PCIIO_SIZE-1)
  88 #define BONITO_PCICFG_BASE      0x1fe80000
  89 #define BONITO_PCICFG_SIZE      0x00080000
  90 #define BONITO_PCICFG_TOP       (BONITO_PCICFG_BASE+BONITO_PCICFG_SIZE-1)
  91
  92
  93 #define BONITO_PCICONFIGBASE    0x00
  94 #define BONITO_REGBASE          0x100
  95
  96 #define BONITO_PCICONFIG_BASE   (BONITO_PCICONFIGBASE+BONITO_REG_BASE)
  97 #define BONITO_PCICONFIG_SIZE   (0x100)
  98
  99 #define BONITO_INTERNAL_REG_BASE  (BONITO_REGBASE+BONITO_REG_BASE)
 100 #define BONITO_INTERNAL_REG_SIZE  (0x70)
 101
 102 #define BONITO_SPCICONFIG_BASE  (BONITO_PCICFG_BASE)
 103 #define BONITO_SPCICONFIG_SIZE  (BONITO_PCICFG_SIZE)
 104
 105
 106
 107 /* 1. Bonito h/w Configuration */
 108 /* Power on register */
 109
 110 #define BONITO_BONPONCFG        (0x00 >> 2)      /* 0x100 */
 111 #define BONITO_BONGENCFG_OFFSET 0x4
 112 #define BONITO_BONGENCFG        (BONITO_BONGENCFG_OFFSET>>2)   /*0x104 */
 113
 114 /* 2. IO & IDE configuration */
 115 #define BONITO_IODEVCFG         (0x08 >> 2)      /* 0x108 */
 116
 117 /* 3. IO & IDE configuration */
 118 #define BONITO_SDCFG            (0x0c >> 2)      /* 0x10c */
 119
 120 /* 4. PCI address map control */
 121 #define BONITO_PCIMAP           (0x10 >> 2)      /* 0x110 */
 122 #define BONITO_PCIMEMBASECFG    (0x14 >> 2)      /* 0x114 */
 123 #define BONITO_PCIMAP_CFG       (0x18 >> 2)      /* 0x118 */
 124
 125 /* 5. ICU & GPIO regs */
 126 /* GPIO Regs - r/w */
 127 #define BONITO_GPIODATA_OFFSET  0x1c
 128 #define BONITO_GPIODATA         (BONITO_GPIODATA_OFFSET >> 2)   /* 0x11c */
 129 #define BONITO_GPIOIE           (0x20 >> 2)      /* 0x120 */
 130
 131 /* ICU Configuration Regs - r/w */
 132 #define BONITO_INTEDGE          (0x24 >> 2)      /* 0x124 */
 133 #define BONITO_INTSTEER         (0x28 >> 2)      /* 0x128 */
 134 #define BONITO_INTPOL           (0x2c >> 2)      /* 0x12c */
 135
 136 /* ICU Enable Regs - IntEn & IntISR are r/o. */
 137 #define BONITO_INTENSET         (0x30 >> 2)      /* 0x130 */
 138 #define BONITO_INTENCLR         (0x34 >> 2)      /* 0x134 */
 139 #define BONITO_INTEN            (0x38 >> 2)      /* 0x138 */
 140 #define BONITO_INTISR           (0x3c >> 2)      /* 0x13c */
 141
 142 /* PCI mail boxes */
 143 #define BONITO_PCIMAIL0_OFFSET    0x40
 144 #define BONITO_PCIMAIL1_OFFSET    0x44
 145 #define BONITO_PCIMAIL2_OFFSET    0x48
 146 #define BONITO_PCIMAIL3_OFFSET    0x4c
 147 #define BONITO_PCIMAIL0         (0x40 >> 2)      /* 0x140 */
 148 #define BONITO_PCIMAIL1         (0x44 >> 2)      /* 0x144 */
 149 #define BONITO_PCIMAIL2         (0x48 >> 2)      /* 0x148 */
 150 #define BONITO_PCIMAIL3         (0x4c >> 2)      /* 0x14c */
 151
 152 /* 6. PCI cache */
 153 #define BONITO_PCICACHECTRL     (0x50 >> 2)      /* 0x150 */
 154 #define BONITO_PCICACHETAG      (0x54 >> 2)      /* 0x154 */
 155 #define BONITO_PCIBADADDR       (0x58 >> 2)      /* 0x158 */
 156 #define BONITO_PCIMSTAT         (0x5c >> 2)      /* 0x15c */
 157
 158 /* 7. other*/
 159 #define BONITO_TIMECFG          (0x60 >> 2)      /* 0x160 */
 160 #define BONITO_CPUCFG           (0x64 >> 2)      /* 0x164 */
 161 #define BONITO_DQCFG            (0x68 >> 2)      /* 0x168 */
 162 #define BONITO_MEMSIZE          (0x6C >> 2)      /* 0x16c */
 163
 164 #define BONITO_REGS             (0x70 >> 2)
 165
 166 /* PCI config for south bridge. type 0 */
 167 #define BONITO_PCICONF_IDSEL_MASK      0xfffff800     /* [31:11] */
 168 #define BONITO_PCICONF_IDSEL_OFFSET    11
 169 #define BONITO_PCICONF_FUN_MASK        0x700    /* [10:8] */
 170 #define BONITO_PCICONF_FUN_OFFSET      8
 171 #define BONITO_PCICONF_REG_MASK        0xFC
 172 #define BONITO_PCICONF_REG_OFFSET      0
 173
 174
 175 /* idsel BIT = pci slot number +12 */
 176 #define PCI_SLOT_BASE              12
 177 #define PCI_IDSEL_VIA686B_BIT      (17)
 178 #define PCI_IDSEL_VIA686B          (1<<PCI_IDSEL_VIA686B_BIT)
 179
 180 #define PCI_ADDR(busno,devno,funno,regno)  \
 181     ((((busno)<<16)&0xff0000) + (((devno)<<11)&0xf800) + (((funno)<<8)&0x700) + (regno))
 182
 183 typedef PCIHostState BonitoState;
 184
 185 typedef struct PCIBonitoState
 186 {
 187     PCIDevice dev;
 188     BonitoState *pcihost;
 189     uint32_t regs[BONITO_REGS];
 190
 191     struct bonldma {
 192         uint32_t ldmactrl;
 193         uint32_t ldmastat;
 194         uint32_t ldmaaddr;
 195         uint32_t ldmago;
 196     } bonldma;
 197
 198     /* Based at 1fe00300, bonito Copier */
 199     struct boncop {
 200         uint32_t copctrl;
 201         uint32_t copstat;
 202         uint32_t coppaddr;
 203         uint32_t copgo;
 204     } boncop;
 205
 206     /* Bonito registers */
 207     MemoryRegion iomem;
 208     MemoryRegion iomem_ldma;
 209     MemoryRegion iomem_cop;
 210
 211     target_phys_addr_t bonito_pciio_start;
 212     target_phys_addr_t bonito_pciio_length;
 213     int bonito_pciio_handle;
 214
 215     target_phys_addr_t bonito_localio_start;
 216     target_phys_addr_t bonito_localio_length;
 217     int bonito_localio_handle;
 218
 219 } PCIBonitoState;
 220
 221 PCIBonitoState * bonito_state;
 222
 223 static void bonito_writel(void *opaque, target_phys_addr_t addr,
 224                           uint64_t val, unsigned size)
 225 {
 226     PCIBonitoState *s = opaque;
 227     uint32_t saddr;
 228     int reset = 0;
 229
 230     saddr = (addr - BONITO_REGBASE) >> 2;
 231
 232     DPRINTF("bonito_writel "TARGET_FMT_plx" val %x saddr %x\n", addr, val, saddr);
 233     switch (saddr) {
 234     case BONITO_BONPONCFG:
 235     case BONITO_IODEVCFG:
 236     case BONITO_SDCFG:
 237     case BONITO_PCIMAP:
 238     case BONITO_PCIMEMBASECFG:
 239     case BONITO_PCIMAP_CFG:
 240     case BONITO_GPIODATA:
 241     case BONITO_GPIOIE:
 242     case BONITO_INTEDGE:
 243     case BONITO_INTSTEER:
 244     case BONITO_INTPOL:
 245     case BONITO_PCIMAIL0:
 246     case BONITO_PCIMAIL1:
 247     case BONITO_PCIMAIL2:
 248     case BONITO_PCIMAIL3:
 249     case BONITO_PCICACHECTRL:
 250     case BONITO_PCICACHETAG:
 251     case BONITO_PCIBADADDR:
 252     case BONITO_PCIMSTAT:
 253     case BONITO_TIMECFG:
 254     case BONITO_CPUCFG:
 255     case BONITO_DQCFG:
 256     case BONITO_MEMSIZE:
 257         s->regs[saddr] = val;
 258         break;
 259     case BONITO_BONGENCFG:
 260         if (!(s->regs[saddr] & 0x04) && (val & 0x04)) {
 261             reset = 1; /* bit 2 jump from 0 to 1 cause reset */
 262         }
 263         s->regs[saddr] = val;
 264         if (reset) {
 265             qemu_system_reset_request();
 266         }
 267         break;
 268     case BONITO_INTENSET:
 269         s->regs[BONITO_INTENSET] = val;
 270         s->regs[BONITO_INTEN] |= val;
 271         break;
 272     case BONITO_INTENCLR:
 273         s->regs[BONITO_INTENCLR] = val;
 274         s->regs[BONITO_INTEN] &= ~val;
 275         break;
 276     case BONITO_INTEN:
 277     case BONITO_INTISR:
 278         DPRINTF("write to readonly bonito register %x\n", saddr);
 279         break;
 280     default:
 281         DPRINTF("write to unknown bonito register %x\n", saddr);
 282         break;
 283     }
 284 }
 285
 286 static uint64_t bonito_readl(void *opaque, target_phys_addr_t addr,
 287                              unsigned size)
 288 {
 289     PCIBonitoState *s = opaque;
 290     uint32_t saddr;
 291
 292     saddr = (addr - BONITO_REGBASE) >> 2;
 293
 294     DPRINTF("bonito_readl "TARGET_FMT_plx"\n", addr);
 295     switch (saddr) {
 296     case BONITO_INTISR:
 297         return s->regs[saddr];
 298     default:
 299         return s->regs[saddr];
 300     }
 301 }
 302
 303 static const MemoryRegionOps bonito_ops = {
 304     .read = bonito_readl,
 305     .write = bonito_writel,
 306     .endianness = DEVICE_NATIVE_ENDIAN,
 307     .valid = {
 308         .min_access_size = 4,
 309         .max_access_size = 4,
 310     },
 311 };
 312
 313 static void bonito_pciconf_writel(void *opaque, target_phys_addr_t addr,
 314                                   uint64_t val, unsigned size)
 315 {
 316     PCIBonitoState *s = opaque;
 317
 318     DPRINTF("bonito_pciconf_writel "TARGET_FMT_plx" val %x\n", addr, val);
 319     s->dev.config_write(&s->dev, addr, val, 4);
 320 }
 321
 322 static uint64_t bonito_pciconf_readl(void *opaque, target_phys_addr_t addr,
 323                                      unsigned size)
 324 {
 325
 326     PCIBonitoState *s = opaque;
 327
 328     DPRINTF("bonito_pciconf_readl "TARGET_FMT_plx"\n", addr);
 329     return s->dev.config_read(&s->dev, addr, 4);
 330 }
 331
 332 /* north bridge PCI configure space. 0x1fe0 0000 - 0x1fe0 00ff */
 333
 334 static const MemoryRegionOps bonito_pciconf_ops = {
 335     .read = bonito_pciconf_readl,
 336     .write = bonito_pciconf_writel,
 337     .endianness = DEVICE_NATIVE_ENDIAN,
 338     .valid = {
 339         .min_access_size = 4,
 340         .max_access_size = 4,
 341     },
 342 };
 343
 344 static uint64_t bonito_ldma_readl(void *opaque, target_phys_addr_t addr,
 345                                   unsigned size)
 346 {
 347     uint32_t val;
 348     PCIBonitoState *s = opaque;
 349
 350     val = ((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)];
 351
 352     return val;
 353 }
 354
 355 static void bonito_ldma_writel(void *opaque, target_phys_addr_t addr,
 356                                uint64_t val, unsigned size)
 357 {
 358     PCIBonitoState *s = opaque;
 359
 360     ((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)] = val & 0xffffffff;
 361 }
 362
 363 static const MemoryRegionOps bonito_ldma_ops = {
 364     .read = bonito_ldma_readl,
 365     .write = bonito_ldma_writel,
 366     .endianness = DEVICE_NATIVE_ENDIAN,
 367     .valid = {
 368         .min_access_size = 4,
 369         .max_access_size = 4,
 370     },
 371 };
 372
 373 static uint64_t bonito_cop_readl(void *opaque, target_phys_addr_t addr,
 374                                  unsigned size)
 375 {
 376     uint32_t val;
 377     PCIBonitoState *s = opaque;
 378
 379     val = ((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)];
 380
 381     return val;
 382 }
 383
 384 static void bonito_cop_writel(void *opaque, target_phys_addr_t addr,
 385                               uint64_t val, unsigned size)
 386 {
 387     PCIBonitoState *s = opaque;
 388
 389     ((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)] = val & 0xffffffff;
 390 }
 391
 392 static const MemoryRegionOps bonito_cop_ops = {
 393     .read = bonito_cop_readl,
 394     .write = bonito_cop_writel,
 395     .endianness = DEVICE_NATIVE_ENDIAN,
 396     .valid = {
 397         .min_access_size = 4,
 398         .max_access_size = 4,
 399     },
 400 };
 401
 402 static uint32_t bonito_sbridge_pciaddr(void *opaque, target_phys_addr_t addr)
 403 {
 404     PCIBonitoState *s = opaque;
 405     uint32_t cfgaddr;
 406     uint32_t idsel;
 407     uint32_t devno;
 408     uint32_t funno;
 409     uint32_t regno;
 410     uint32_t pciaddr;
 411
 412     /* support type0 pci config */
 413     if ((s->regs[BONITO_PCIMAP_CFG] & 0x10000) != 0x0) {
 414         return 0xffffffff;
 415     }
 416
 417     cfgaddr = addr & 0xffff;
 418     cfgaddr |= (s->regs[BONITO_PCIMAP_CFG] & 0xffff) << 16;
 419
 420     idsel = (cfgaddr & BONITO_PCICONF_IDSEL_MASK) >> BONITO_PCICONF_IDSEL_OFFSET;
 421     devno = ffs(idsel) - 1;
 422     funno = (cfgaddr & BONITO_PCICONF_FUN_MASK) >> BONITO_PCICONF_FUN_OFFSET;
 423     regno = (cfgaddr & BONITO_PCICONF_REG_MASK) >> BONITO_PCICONF_REG_OFFSET;
 424
 425     if (idsel == 0) {
 426         fprintf(stderr, "error in bonito pci config address" TARGET_FMT_plx
 427             ",pcimap_cfg=%x\n", addr, s->regs[BONITO_PCIMAP_CFG]);
 428         exit(1);
 429     }
 430     pciaddr = PCI_ADDR(pci_bus_num(s->pcihost->bus), devno, funno, regno);
 431     DPRINTF("cfgaddr %x pciaddr %x busno %x devno %d funno %d regno %d\n",
 432         cfgaddr, pciaddr, pci_bus_num(s->pcihost->bus), devno, funno, regno);
 433
 434     return pciaddr;
 435 }
 436
 437 static void bonito_spciconf_writeb(void *opaque, target_phys_addr_t addr,
 438                                    uint32_t val)
 439 {
 440     PCIBonitoState *s = opaque;
 441     uint32_t pciaddr;
 442     uint16_t status;
 443
 444     DPRINTF("bonito_spciconf_writeb "TARGET_FMT_plx" val %x\n", addr, val);
 445     pciaddr = bonito_sbridge_pciaddr(s, addr);
 446
 447     if (pciaddr == 0xffffffff) {
 448         return;
 449     }
 450
 451     /* set the pci address in s->config_reg */
 452     s->pcihost->config_reg = (pciaddr) | (1u << 31);
 453     pci_data_write(s->pcihost->bus, s->pcihost->config_reg, val & 0xff, 1);
 454
 455     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 456     status = pci_get_word(s->dev.config + PCI_STATUS);
 457     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 458     pci_set_word(s->dev.config + PCI_STATUS, status);
 459 }
 460
 461 static void bonito_spciconf_writew(void *opaque, target_phys_addr_t addr,
 462                                    uint32_t val)
 463 {
 464     PCIBonitoState *s = opaque;
 465     uint32_t pciaddr;
 466     uint16_t status;
 467
 468     DPRINTF("bonito_spciconf_writew "TARGET_FMT_plx" val %x\n", addr, val);
 469     assert((addr&0x1)==0);
 470
 471     pciaddr = bonito_sbridge_pciaddr(s, addr);
 472
 473     if (pciaddr == 0xffffffff) {
 474         return;
 475     }
 476
 477     /* set the pci address in s->config_reg */
 478     s->pcihost->config_reg = (pciaddr) | (1u << 31);
 479     pci_data_write(s->pcihost->bus, s->pcihost->config_reg, val, 2);
 480
 481     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 482     status = pci_get_word(s->dev.config + PCI_STATUS);
 483     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 484     pci_set_word(s->dev.config + PCI_STATUS, status);
 485 }
 486
 487 static void bonito_spciconf_writel(void *opaque, target_phys_addr_t addr,
 488                                    uint32_t val)
 489 {
 490     PCIBonitoState *s = opaque;
 491     uint32_t pciaddr;
 492     uint16_t status;
 493
 494     DPRINTF("bonito_spciconf_writel "TARGET_FMT_plx" val %x\n", addr, val);
 495     assert((addr&0x3)==0);
 496
 497     pciaddr = bonito_sbridge_pciaddr(s, addr);
 498
 499     if (pciaddr == 0xffffffff) {
 500         return;
 501     }
 502
 503     /* set the pci address in s->config_reg */
 504     s->pcihost->config_reg = (pciaddr) | (1u << 31);
 505     pci_data_write(s->pcihost->bus, s->pcihost->config_reg, val, 4);
 506
 507     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 508     status = pci_get_word(s->dev.config + PCI_STATUS);
 509     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 510     pci_set_word(s->dev.config + PCI_STATUS, status);
 511 }
 512
 513 static uint32_t bonito_spciconf_readb(void *opaque, target_phys_addr_t addr)
 514 {
 515     PCIBonitoState *s = opaque;
 516     uint32_t pciaddr;
 517     uint16_t status;
 518
 519     DPRINTF("bonito_spciconf_readb "TARGET_FMT_plx"\n", addr);
 520     pciaddr = bonito_sbridge_pciaddr(s, addr);
 521
 522     if (pciaddr == 0xffffffff) {
 523         return 0xff;
 524     }
 525
 526     /* set the pci address in s->config_reg */
 527     s->pcihost->config_reg = (pciaddr) | (1u << 31);
 528
 529     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 530     status = pci_get_word(s->dev.config + PCI_STATUS);
 531     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 532     pci_set_word(s->dev.config + PCI_STATUS, status);
 533
 534     return pci_data_read(s->pcihost->bus, s->pcihost->config_reg, 1);
 535 }
 536
 537 static uint32_t bonito_spciconf_readw(void *opaque, target_phys_addr_t addr)
 538 {
 539     PCIBonitoState *s = opaque;
 540     uint32_t pciaddr;
 541     uint16_t status;
 542
 543     DPRINTF("bonito_spciconf_readw "TARGET_FMT_plx"\n", addr);
 544     assert((addr&0x1)==0);
 545
 546     pciaddr = bonito_sbridge_pciaddr(s, addr);
 547
 548     if (pciaddr == 0xffffffff) {
 549         return 0xffff;
 550     }
 551
 552     /* set the pci address in s->config_reg */
 553     s->pcihost->config_reg = (pciaddr) | (1u << 31);
 554
 555     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 556     status = pci_get_word(s->dev.config + PCI_STATUS);
 557     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 558     pci_set_word(s->dev.config + PCI_STATUS, status);
 559
 560     return pci_data_read(s->pcihost->bus, s->pcihost->config_reg, 2);
 561 }
 562
 563 static uint32_t bonito_spciconf_readl(void *opaque, target_phys_addr_t addr)
 564 {
 565     PCIBonitoState *s = opaque;
 566     uint32_t pciaddr;
 567     uint16_t status;
 568
 569     DPRINTF("bonito_spciconf_readl "TARGET_FMT_plx"\n", addr);
 570     assert((addr&0x3) == 0);
 571
 572     pciaddr = bonito_sbridge_pciaddr(s, addr);
 573
 574     if (pciaddr == 0xffffffff) {
 575         return 0xffffffff;
 576     }
 577
 578     /* set the pci address in s->config_reg */
 579     s->pcihost->config_reg = (pciaddr) | (1u << 31);
 580
 581     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 582     status = pci_get_word(s->dev.config + PCI_STATUS);
 583     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 584     pci_set_word(s->dev.config + PCI_STATUS, status);
 585
 586     return pci_data_read(s->pcihost->bus, s->pcihost->config_reg, 4);
 587 }
 588
 589 /* south bridge PCI configure space. 0x1fe8 0000 - 0x1fef ffff */
 590 static const MemoryRegionOps bonito_spciconf_ops = {
 591     .old_mmio = {
 592         .read = {
 593             bonito_spciconf_readb,
 594             bonito_spciconf_readw,
 595             bonito_spciconf_readl,
 596         },
 597         .write = {
 598             bonito_spciconf_writeb,
 599             bonito_spciconf_writew,
 600             bonito_spciconf_writel,
 601         },
 602     },
 603     .endianness = DEVICE_NATIVE_ENDIAN,
 604 };
 605
 606 #define BONITO_IRQ_BASE 32
 607
 608 static void pci_bonito_set_irq(void *opaque, int irq_num, int level)
 609 {
 610     qemu_irq *pic = opaque;
 611     int internal_irq = irq_num - BONITO_IRQ_BASE;
 612
 613     if (bonito_state->regs[BONITO_INTEDGE] & (1<<internal_irq)) {
 614         qemu_irq_pulse(*pic);
 615     } else {   /* level triggered */
 616         if (bonito_state->regs[BONITO_INTPOL] & (1<<internal_irq)) {
 617             qemu_irq_raise(*pic);
 618         } else {
 619             qemu_irq_lower(*pic);
 620         }
 621     }
 622 }
 623
 624 /* map the original irq (0~3) to bonito irq (16~47, but 16~31 are unused) */
 625 static int pci_bonito_map_irq(PCIDevice * pci_dev, int irq_num)
 626 {
 627     int slot;
 628
 629     slot = (pci_dev->devfn >> 3);
 630
 631     switch (slot) {
 632     case 5:   /* FULONG2E_VIA_SLOT, SouthBridge, IDE, USB, ACPI, AC97, MC97 */
 633         return irq_num % 4 + BONITO_IRQ_BASE;
 634     case 6:   /* FULONG2E_ATI_SLOT, VGA */
 635         return 4 + BONITO_IRQ_BASE;
 636     case 7:   /* FULONG2E_RTL_SLOT, RTL8139 */
 637         return 5 + BONITO_IRQ_BASE;
 638     case 8 ... 12: /* PCI slot 1 to 4 */
 639         return (slot - 8 + irq_num) + 6 + BONITO_IRQ_BASE;
 640     default:  /* Unknown device, don't do any translation */
 641         return irq_num;
 642     }
 643 }
 644
 645 static void bonito_reset(void *opaque)
 646 {
 647     PCIBonitoState *s = opaque;
 648
 649     /* set the default value of north bridge registers */
 650
 651     s->regs[BONITO_BONPONCFG] = 0xc40;
 652     s->regs[BONITO_BONGENCFG] = 0x1384;
 653     s->regs[BONITO_IODEVCFG] = 0x2bff8010;
 654     s->regs[BONITO_SDCFG] = 0x255e0091;
 655
 656     s->regs[BONITO_GPIODATA] = 0x1ff;
 657     s->regs[BONITO_GPIOIE] = 0x1ff;
 658     s->regs[BONITO_DQCFG] = 0x8;
 659     s->regs[BONITO_MEMSIZE] = 0x10000000;
 660     s->regs[BONITO_PCIMAP] = 0x6140;
 661 }
 662
 663 static const VMStateDescription vmstate_bonito = {
 664     .name = "Bonito",
 665     .version_id = 1,
 666     .minimum_version_id = 1,
 667     .minimum_version_id_old = 1,
 668     .fields      = (VMStateField []) {
 669         VMSTATE_PCI_DEVICE(dev, PCIBonitoState),
 670         VMSTATE_END_OF_LIST()
 671     }
 672 };
 673
 674 static int bonito_pcihost_initfn(SysBusDevice *dev)
 675 {
 676     return 0;
 677 }
 678
 679 static int bonito_initfn(PCIDevice *dev)
 680 {
 681     PCIBonitoState *s = DO_UPCAST(PCIBonitoState, dev, dev);
 682     SysBusDevice *sysbus = &s->pcihost->busdev;
 683
 684     /* Bonito North Bridge, built on FPGA, VENDOR_ID/DEVICE_ID are "undefined" */
 685     pci_config_set_prog_interface(dev->config, 0x00);
 686
 687     /* set the north bridge register mapping */
 688     memory_region_init_io(&s->iomem, &bonito_ops, s,
 689                           "north-bridge-register", BONITO_INTERNAL_REG_SIZE);
 690     sysbus_init_mmio(sysbus, &s->iomem);
 691     sysbus_mmio_map(sysbus, 0, BONITO_INTERNAL_REG_BASE);
 692
 693     /* set the north bridge pci configure  mapping */
 694     memory_region_init_io(&s->pcihost->conf_mem, &bonito_pciconf_ops, s,
 695                           "north-bridge-pci-config", BONITO_PCICONFIG_SIZE);
 696     sysbus_init_mmio(sysbus, &s->pcihost->conf_mem);
 697     sysbus_mmio_map(sysbus, 1, BONITO_PCICONFIG_BASE);
 698
 699     /* set the south bridge pci configure  mapping */
 700     memory_region_init_io(&s->pcihost->data_mem, &bonito_spciconf_ops, s,
 701                           "south-bridge-pci-config", BONITO_SPCICONFIG_SIZE);
 702     sysbus_init_mmio(sysbus, &s->pcihost->data_mem);
 703     sysbus_mmio_map(sysbus, 2, BONITO_SPCICONFIG_BASE);
 704
 705     memory_region_init_io(&s->iomem_ldma, &bonito_ldma_ops, s,
 706                           "ldma", 0x100);
 707     sysbus_init_mmio(sysbus, &s->iomem_ldma);
 708     sysbus_mmio_map(sysbus, 3, 0xbfe00200);
 709
 710     memory_region_init_io(&s->iomem_cop, &bonito_cop_ops, s,
 711                           "cop", 0x100);
 712     sysbus_init_mmio(sysbus, &s->iomem_cop);
 713     sysbus_mmio_map(sysbus, 4, 0xbfe00300);
 714
 715     /* Map PCI IO Space  0x1fd0 0000 - 0x1fd1 0000 */
 716     s->bonito_pciio_start = BONITO_PCIIO_BASE;
 717     s->bonito_pciio_length = BONITO_PCIIO_SIZE;
 718     isa_mem_base = s->bonito_pciio_start;
 719     isa_mmio_init(s->bonito_pciio_start, s->bonito_pciio_length);
 720
 721     /* add pci local io mapping */
 722     s->bonito_localio_start = BONITO_DEV_BASE;
 723     s->bonito_localio_length = BONITO_DEV_SIZE;
 724     isa_mmio_init(s->bonito_localio_start, s->bonito_localio_length);
 725
 726     /* set the default value of north bridge pci config */
 727     pci_set_word(dev->config + PCI_COMMAND, 0x0000);
 728     pci_set_word(dev->config + PCI_STATUS, 0x0000);
 729     pci_set_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID, 0x0000);
 730     pci_set_word(dev->config + PCI_SUBSYSTEM_ID, 0x0000);
 731
 732     pci_set_byte(dev->config + PCI_INTERRUPT_LINE, 0x00);
 733     pci_set_byte(dev->config + PCI_INTERRUPT_PIN, 0x01);
 734     pci_set_byte(dev->config + PCI_MIN_GNT, 0x3c);
 735     pci_set_byte(dev->config + PCI_MAX_LAT, 0x00);
 736
 737     qemu_register_reset(bonito_reset, s);
 738
 739     return 0;
 740 }
 741
 742 PCIBus *bonito_init(qemu_irq *pic)
 743 {
 744     DeviceState *dev;
 745     PCIBus *b;
 746     BonitoState *pcihost;
 747     PCIBonitoState *s;
 748     PCIDevice *d;
 749
 750     dev = qdev_create(NULL, "Bonito-pcihost");
 751     pcihost = FROM_SYSBUS(BonitoState, sysbus_from_qdev(dev));
 752     b = pci_register_bus(&pcihost->busdev.qdev, "pci", pci_bonito_set_irq,
 753                          pci_bonito_map_irq, pic, get_system_memory(),
 754                          get_system_io(),
 755                          0x28, 32);
 756     pcihost->bus = b;
 757     qdev_init_nofail(dev);
 758
 759     /* set the pcihost pointer before bonito_initfn is called */
 760     d = pci_create(b, PCI_DEVFN(0, 0), "Bonito");
 761     s = DO_UPCAST(PCIBonitoState, dev, d);
 762     s->pcihost = pcihost;
 763     bonito_state = s;
 764     qdev_init_nofail(&d->qdev);
 765
 766     return b;
 767 }
 768
 769 static void bonito_class_init(ObjectClass *klass, void *data)
 770 {
 771     DeviceClass *dc = DEVICE_CLASS(klass);
 772     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 773
 774     k->init = bonito_initfn;
 775     k->vendor_id = 0xdf53;
 776     k->device_id = 0x00d5;
 777     k->revision = 0x01;
 778     k->class_id = PCI_CLASS_BRIDGE_HOST;
 779     dc->desc = "Host bridge";
 780     dc->no_user = 1;
 781     dc->vmsd = &vmstate_bonito;
 782 }
 783
 784 static TypeInfo bonito_info = {
 785     .name          = "Bonito",
 786     .parent        = TYPE_PCI_DEVICE,
 787     .instance_size = sizeof(PCIBonitoState),
 788     .class_init    = bonito_class_init,
 789 };
 790
 791 static void bonito_pcihost_class_init(ObjectClass *klass, void *data)
 792 {
 793     DeviceClass *dc = DEVICE_CLASS(klass);
 794     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 795
 796     k->init = bonito_pcihost_initfn;
 797     dc->no_user = 1;
 798 }
 799
 800 static TypeInfo bonito_pcihost_info = {
 801     .name          = "Bonito-pcihost",
 802     .parent        = TYPE_SYS_BUS_DEVICE,
 803     .instance_size = sizeof(BonitoState),
 804     .class_init    = bonito_pcihost_class_init,
 805 };
 806
 807 static void bonito_register_types(void)
 808 {
 809     type_register_static(&bonito_pcihost_info);
 810     type_register_static(&bonito_info);
 811 }
 812
 813 type_init(bonito_register_types)