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/hw.h"
  43 #include "hw/pci/pci.h"
  44 #include "hw/pc.h"
  45 #include "hw/mips.h"
  46 #include "hw/pci/pci_host.h"
  47 #include "sysemu/sysemu.h"
  48 #include "exec/address-spaces.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 #define TYPE_BONITO_PCI_HOST_BRIDGE "Bonito-pcihost"
 184
 185 typedef struct BonitoState BonitoState;
 186
 187 typedef struct PCIBonitoState
 188 {
 189     PCIDevice dev;
 190
 191     BonitoState *pcihost;
 192     uint32_t regs[BONITO_REGS];
 193
 194     struct bonldma {
 195         uint32_t ldmactrl;
 196         uint32_t ldmastat;
 197         uint32_t ldmaaddr;
 198         uint32_t ldmago;
 199     } bonldma;
 200
 201     /* Based at 1fe00300, bonito Copier */
 202     struct boncop {
 203         uint32_t copctrl;
 204         uint32_t copstat;
 205         uint32_t coppaddr;
 206         uint32_t copgo;
 207     } boncop;
 208
 209     /* Bonito registers */
 210     MemoryRegion iomem;
 211     MemoryRegion iomem_ldma;
 212     MemoryRegion iomem_cop;
 213
 214     hwaddr bonito_pciio_start;
 215     hwaddr bonito_pciio_length;
 216     int bonito_pciio_handle;
 217
 218     hwaddr bonito_localio_start;
 219     hwaddr bonito_localio_length;
 220     int bonito_localio_handle;
 221
 222 } PCIBonitoState;
 223
 224 #define BONITO_PCI_HOST_BRIDGE(obj) \
 225     OBJECT_CHECK(BonitoState, (obj), TYPE_BONITO_PCI_HOST_BRIDGE)
 226
 227 struct BonitoState {
 228     PCIHostState parent_obj;
 229
 230     qemu_irq *pic;
 231
 232     PCIBonitoState *pci_dev;
 233 };
 234
 235 static void bonito_writel(void *opaque, hwaddr addr,
 236                           uint64_t val, unsigned size)
 237 {
 238     PCIBonitoState *s = opaque;
 239     uint32_t saddr;
 240     int reset = 0;
 241
 242     saddr = (addr - BONITO_REGBASE) >> 2;
 243
 244     DPRINTF("bonito_writel "TARGET_FMT_plx" val %x saddr %x\n", addr, val, saddr);
 245     switch (saddr) {
 246     case BONITO_BONPONCFG:
 247     case BONITO_IODEVCFG:
 248     case BONITO_SDCFG:
 249     case BONITO_PCIMAP:
 250     case BONITO_PCIMEMBASECFG:
 251     case BONITO_PCIMAP_CFG:
 252     case BONITO_GPIODATA:
 253     case BONITO_GPIOIE:
 254     case BONITO_INTEDGE:
 255     case BONITO_INTSTEER:
 256     case BONITO_INTPOL:
 257     case BONITO_PCIMAIL0:
 258     case BONITO_PCIMAIL1:
 259     case BONITO_PCIMAIL2:
 260     case BONITO_PCIMAIL3:
 261     case BONITO_PCICACHECTRL:
 262     case BONITO_PCICACHETAG:
 263     case BONITO_PCIBADADDR:
 264     case BONITO_PCIMSTAT:
 265     case BONITO_TIMECFG:
 266     case BONITO_CPUCFG:
 267     case BONITO_DQCFG:
 268     case BONITO_MEMSIZE:
 269         s->regs[saddr] = val;
 270         break;
 271     case BONITO_BONGENCFG:
 272         if (!(s->regs[saddr] & 0x04) && (val & 0x04)) {
 273             reset = 1; /* bit 2 jump from 0 to 1 cause reset */
 274         }
 275         s->regs[saddr] = val;
 276         if (reset) {
 277             qemu_system_reset_request();
 278         }
 279         break;
 280     case BONITO_INTENSET:
 281         s->regs[BONITO_INTENSET] = val;
 282         s->regs[BONITO_INTEN] |= val;
 283         break;
 284     case BONITO_INTENCLR:
 285         s->regs[BONITO_INTENCLR] = val;
 286         s->regs[BONITO_INTEN] &= ~val;
 287         break;
 288     case BONITO_INTEN:
 289     case BONITO_INTISR:
 290         DPRINTF("write to readonly bonito register %x\n", saddr);
 291         break;
 292     default:
 293         DPRINTF("write to unknown bonito register %x\n", saddr);
 294         break;
 295     }
 296 }
 297
 298 static uint64_t bonito_readl(void *opaque, hwaddr addr,
 299                              unsigned size)
 300 {
 301     PCIBonitoState *s = opaque;
 302     uint32_t saddr;
 303
 304     saddr = (addr - BONITO_REGBASE) >> 2;
 305
 306     DPRINTF("bonito_readl "TARGET_FMT_plx"\n", addr);
 307     switch (saddr) {
 308     case BONITO_INTISR:
 309         return s->regs[saddr];
 310     default:
 311         return s->regs[saddr];
 312     }
 313 }
 314
 315 static const MemoryRegionOps bonito_ops = {
 316     .read = bonito_readl,
 317     .write = bonito_writel,
 318     .endianness = DEVICE_NATIVE_ENDIAN,
 319     .valid = {
 320         .min_access_size = 4,
 321         .max_access_size = 4,
 322     },
 323 };
 324
 325 static void bonito_pciconf_writel(void *opaque, hwaddr addr,
 326                                   uint64_t val, unsigned size)
 327 {
 328     PCIBonitoState *s = opaque;
 329     PCIDevice *d = PCI_DEVICE(s);
 330
 331     DPRINTF("bonito_pciconf_writel "TARGET_FMT_plx" val %x\n", addr, val);
 332     d->config_write(d, addr, val, 4);
 333 }
 334
 335 static uint64_t bonito_pciconf_readl(void *opaque, hwaddr addr,
 336                                      unsigned size)
 337 {
 338
 339     PCIBonitoState *s = opaque;
 340     PCIDevice *d = PCI_DEVICE(s);
 341
 342     DPRINTF("bonito_pciconf_readl "TARGET_FMT_plx"\n", addr);
 343     return d->config_read(d, addr, 4);
 344 }
 345
 346 /* north bridge PCI configure space. 0x1fe0 0000 - 0x1fe0 00ff */
 347
 348 static const MemoryRegionOps bonito_pciconf_ops = {
 349     .read = bonito_pciconf_readl,
 350     .write = bonito_pciconf_writel,
 351     .endianness = DEVICE_NATIVE_ENDIAN,
 352     .valid = {
 353         .min_access_size = 4,
 354         .max_access_size = 4,
 355     },
 356 };
 357
 358 static uint64_t bonito_ldma_readl(void *opaque, hwaddr addr,
 359                                   unsigned size)
 360 {
 361     uint32_t val;
 362     PCIBonitoState *s = opaque;
 363
 364     val = ((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)];
 365
 366     return val;
 367 }
 368
 369 static void bonito_ldma_writel(void *opaque, hwaddr addr,
 370                                uint64_t val, unsigned size)
 371 {
 372     PCIBonitoState *s = opaque;
 373
 374     ((uint32_t *)(&s->bonldma))[addr/sizeof(uint32_t)] = val & 0xffffffff;
 375 }
 376
 377 static const MemoryRegionOps bonito_ldma_ops = {
 378     .read = bonito_ldma_readl,
 379     .write = bonito_ldma_writel,
 380     .endianness = DEVICE_NATIVE_ENDIAN,
 381     .valid = {
 382         .min_access_size = 4,
 383         .max_access_size = 4,
 384     },
 385 };
 386
 387 static uint64_t bonito_cop_readl(void *opaque, hwaddr addr,
 388                                  unsigned size)
 389 {
 390     uint32_t val;
 391     PCIBonitoState *s = opaque;
 392
 393     val = ((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)];
 394
 395     return val;
 396 }
 397
 398 static void bonito_cop_writel(void *opaque, hwaddr addr,
 399                               uint64_t val, unsigned size)
 400 {
 401     PCIBonitoState *s = opaque;
 402
 403     ((uint32_t *)(&s->boncop))[addr/sizeof(uint32_t)] = val & 0xffffffff;
 404 }
 405
 406 static const MemoryRegionOps bonito_cop_ops = {
 407     .read = bonito_cop_readl,
 408     .write = bonito_cop_writel,
 409     .endianness = DEVICE_NATIVE_ENDIAN,
 410     .valid = {
 411         .min_access_size = 4,
 412         .max_access_size = 4,
 413     },
 414 };
 415
 416 static uint32_t bonito_sbridge_pciaddr(void *opaque, hwaddr addr)
 417 {
 418     PCIBonitoState *s = opaque;
 419     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 420     uint32_t cfgaddr;
 421     uint32_t idsel;
 422     uint32_t devno;
 423     uint32_t funno;
 424     uint32_t regno;
 425     uint32_t pciaddr;
 426
 427     /* support type0 pci config */
 428     if ((s->regs[BONITO_PCIMAP_CFG] & 0x10000) != 0x0) {
 429         return 0xffffffff;
 430     }
 431
 432     cfgaddr = addr & 0xffff;
 433     cfgaddr |= (s->regs[BONITO_PCIMAP_CFG] & 0xffff) << 16;
 434
 435     idsel = (cfgaddr & BONITO_PCICONF_IDSEL_MASK) >> BONITO_PCICONF_IDSEL_OFFSET;
 436     devno = ffs(idsel) - 1;
 437     funno = (cfgaddr & BONITO_PCICONF_FUN_MASK) >> BONITO_PCICONF_FUN_OFFSET;
 438     regno = (cfgaddr & BONITO_PCICONF_REG_MASK) >> BONITO_PCICONF_REG_OFFSET;
 439
 440     if (idsel == 0) {
 441         fprintf(stderr, "error in bonito pci config address " TARGET_FMT_plx
 442             ",pcimap_cfg=%x\n", addr, s->regs[BONITO_PCIMAP_CFG]);
 443         exit(1);
 444     }
 445     pciaddr = PCI_ADDR(pci_bus_num(phb->bus), devno, funno, regno);
 446     DPRINTF("cfgaddr %x pciaddr %x busno %x devno %d funno %d regno %d\n",
 447         cfgaddr, pciaddr, pci_bus_num(phb->bus), devno, funno, regno);
 448
 449     return pciaddr;
 450 }
 451
 452 static void bonito_spciconf_writeb(void *opaque, hwaddr addr,
 453                                    uint32_t val)
 454 {
 455     PCIBonitoState *s = opaque;
 456     PCIDevice *d = PCI_DEVICE(s);
 457     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 458     uint32_t pciaddr;
 459     uint16_t status;
 460
 461     DPRINTF("bonito_spciconf_writeb "TARGET_FMT_plx" val %x\n", addr, val);
 462     pciaddr = bonito_sbridge_pciaddr(s, addr);
 463
 464     if (pciaddr == 0xffffffff) {
 465         return;
 466     }
 467
 468     /* set the pci address in s->config_reg */
 469     phb->config_reg = (pciaddr) | (1u << 31);
 470     pci_data_write(phb->bus, phb->config_reg, val & 0xff, 1);
 471
 472     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 473     status = pci_get_word(d->config + PCI_STATUS);
 474     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 475     pci_set_word(d->config + PCI_STATUS, status);
 476 }
 477
 478 static void bonito_spciconf_writew(void *opaque, hwaddr addr,
 479                                    uint32_t val)
 480 {
 481     PCIBonitoState *s = opaque;
 482     PCIDevice *d = PCI_DEVICE(s);
 483     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 484     uint32_t pciaddr;
 485     uint16_t status;
 486
 487     DPRINTF("bonito_spciconf_writew "TARGET_FMT_plx" val %x\n", addr, val);
 488     assert((addr & 0x1) == 0);
 489
 490     pciaddr = bonito_sbridge_pciaddr(s, addr);
 491
 492     if (pciaddr == 0xffffffff) {
 493         return;
 494     }
 495
 496     /* set the pci address in s->config_reg */
 497     phb->config_reg = (pciaddr) | (1u << 31);
 498     pci_data_write(phb->bus, phb->config_reg, val, 2);
 499
 500     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 501     status = pci_get_word(d->config + PCI_STATUS);
 502     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 503     pci_set_word(d->config + PCI_STATUS, status);
 504 }
 505
 506 static void bonito_spciconf_writel(void *opaque, hwaddr addr,
 507                                    uint32_t val)
 508 {
 509     PCIBonitoState *s = opaque;
 510     PCIDevice *d = PCI_DEVICE(s);
 511     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 512     uint32_t pciaddr;
 513     uint16_t status;
 514
 515     DPRINTF("bonito_spciconf_writel "TARGET_FMT_plx" val %x\n", addr, val);
 516     assert((addr & 0x3) == 0);
 517
 518     pciaddr = bonito_sbridge_pciaddr(s, addr);
 519
 520     if (pciaddr == 0xffffffff) {
 521         return;
 522     }
 523
 524     /* set the pci address in s->config_reg */
 525     phb->config_reg = (pciaddr) | (1u << 31);
 526     pci_data_write(phb->bus, phb->config_reg, val, 4);
 527
 528     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 529     status = pci_get_word(d->config + PCI_STATUS);
 530     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 531     pci_set_word(d->config + PCI_STATUS, status);
 532 }
 533
 534 static uint32_t bonito_spciconf_readb(void *opaque, hwaddr addr)
 535 {
 536     PCIBonitoState *s = opaque;
 537     PCIDevice *d = PCI_DEVICE(s);
 538     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 539     uint32_t pciaddr;
 540     uint16_t status;
 541
 542     DPRINTF("bonito_spciconf_readb "TARGET_FMT_plx"\n", addr);
 543     pciaddr = bonito_sbridge_pciaddr(s, addr);
 544
 545     if (pciaddr == 0xffffffff) {
 546         return 0xff;
 547     }
 548
 549     /* set the pci address in s->config_reg */
 550     phb->config_reg = (pciaddr) | (1u << 31);
 551
 552     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 553     status = pci_get_word(d->config + PCI_STATUS);
 554     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 555     pci_set_word(d->config + PCI_STATUS, status);
 556
 557     return pci_data_read(phb->bus, phb->config_reg, 1);
 558 }
 559
 560 static uint32_t bonito_spciconf_readw(void *opaque, hwaddr addr)
 561 {
 562     PCIBonitoState *s = opaque;
 563     PCIDevice *d = PCI_DEVICE(s);
 564     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 565     uint32_t pciaddr;
 566     uint16_t status;
 567
 568     DPRINTF("bonito_spciconf_readw "TARGET_FMT_plx"\n", addr);
 569     assert((addr & 0x1) == 0);
 570
 571     pciaddr = bonito_sbridge_pciaddr(s, addr);
 572
 573     if (pciaddr == 0xffffffff) {
 574         return 0xffff;
 575     }
 576
 577     /* set the pci address in s->config_reg */
 578     phb->config_reg = (pciaddr) | (1u << 31);
 579
 580     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 581     status = pci_get_word(d->config + PCI_STATUS);
 582     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 583     pci_set_word(d->config + PCI_STATUS, status);
 584
 585     return pci_data_read(phb->bus, phb->config_reg, 2);
 586 }
 587
 588 static uint32_t bonito_spciconf_readl(void *opaque, hwaddr addr)
 589 {
 590     PCIBonitoState *s = opaque;
 591     PCIDevice *d = PCI_DEVICE(s);
 592     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 593     uint32_t pciaddr;
 594     uint16_t status;
 595
 596     DPRINTF("bonito_spciconf_readl "TARGET_FMT_plx"\n", addr);
 597     assert((addr & 0x3) == 0);
 598
 599     pciaddr = bonito_sbridge_pciaddr(s, addr);
 600
 601     if (pciaddr == 0xffffffff) {
 602         return 0xffffffff;
 603     }
 604
 605     /* set the pci address in s->config_reg */
 606     phb->config_reg = (pciaddr) | (1u << 31);
 607
 608     /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */
 609     status = pci_get_word(d->config + PCI_STATUS);
 610     status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT);
 611     pci_set_word(d->config + PCI_STATUS, status);
 612
 613     return pci_data_read(phb->bus, phb->config_reg, 4);
 614 }
 615
 616 /* south bridge PCI configure space. 0x1fe8 0000 - 0x1fef ffff */
 617 static const MemoryRegionOps bonito_spciconf_ops = {
 618     .old_mmio = {
 619         .read = {
 620             bonito_spciconf_readb,
 621             bonito_spciconf_readw,
 622             bonito_spciconf_readl,
 623         },
 624         .write = {
 625             bonito_spciconf_writeb,
 626             bonito_spciconf_writew,
 627             bonito_spciconf_writel,
 628         },
 629     },
 630     .endianness = DEVICE_NATIVE_ENDIAN,
 631 };
 632
 633 #define BONITO_IRQ_BASE 32
 634
 635 static void pci_bonito_set_irq(void *opaque, int irq_num, int level)
 636 {
 637     BonitoState *s = opaque;
 638     qemu_irq *pic = s->pic;
 639     PCIBonitoState *bonito_state = s->pci_dev;
 640     int internal_irq = irq_num - BONITO_IRQ_BASE;
 641
 642     if (bonito_state->regs[BONITO_INTEDGE] & (1 << internal_irq)) {
 643         qemu_irq_pulse(*pic);
 644     } else {   /* level triggered */
 645         if (bonito_state->regs[BONITO_INTPOL] & (1 << internal_irq)) {
 646             qemu_irq_raise(*pic);
 647         } else {
 648             qemu_irq_lower(*pic);
 649         }
 650     }
 651 }
 652
 653 /* map the original irq (0~3) to bonito irq (16~47, but 16~31 are unused) */
 654 static int pci_bonito_map_irq(PCIDevice * pci_dev, int irq_num)
 655 {
 656     int slot;
 657
 658     slot = (pci_dev->devfn >> 3);
 659
 660     switch (slot) {
 661     case 5:   /* FULONG2E_VIA_SLOT, SouthBridge, IDE, USB, ACPI, AC97, MC97 */
 662         return irq_num % 4 + BONITO_IRQ_BASE;
 663     case 6:   /* FULONG2E_ATI_SLOT, VGA */
 664         return 4 + BONITO_IRQ_BASE;
 665     case 7:   /* FULONG2E_RTL_SLOT, RTL8139 */
 666         return 5 + BONITO_IRQ_BASE;
 667     case 8 ... 12: /* PCI slot 1 to 4 */
 668         return (slot - 8 + irq_num) + 6 + BONITO_IRQ_BASE;
 669     default:  /* Unknown device, don't do any translation */
 670         return irq_num;
 671     }
 672 }
 673
 674 static void bonito_reset(void *opaque)
 675 {
 676     PCIBonitoState *s = opaque;
 677
 678     /* set the default value of north bridge registers */
 679
 680     s->regs[BONITO_BONPONCFG] = 0xc40;
 681     s->regs[BONITO_BONGENCFG] = 0x1384;
 682     s->regs[BONITO_IODEVCFG] = 0x2bff8010;
 683     s->regs[BONITO_SDCFG] = 0x255e0091;
 684
 685     s->regs[BONITO_GPIODATA] = 0x1ff;
 686     s->regs[BONITO_GPIOIE] = 0x1ff;
 687     s->regs[BONITO_DQCFG] = 0x8;
 688     s->regs[BONITO_MEMSIZE] = 0x10000000;
 689     s->regs[BONITO_PCIMAP] = 0x6140;
 690 }
 691
 692 static const VMStateDescription vmstate_bonito = {
 693     .name = "Bonito",
 694     .version_id = 1,
 695     .minimum_version_id = 1,
 696     .minimum_version_id_old = 1,
 697     .fields      = (VMStateField []) {
 698         VMSTATE_PCI_DEVICE(dev, PCIBonitoState),
 699         VMSTATE_END_OF_LIST()
 700     }
 701 };
 702
 703 static int bonito_pcihost_initfn(SysBusDevice *dev)
 704 {
 705     PCIHostState *phb = PCI_HOST_BRIDGE(dev);
 706
 707     phb->bus = pci_register_bus(DEVICE(dev), "pci",
 708                                 pci_bonito_set_irq, pci_bonito_map_irq, dev,
 709                                 get_system_memory(), get_system_io(),
 710                                 0x28, 32, TYPE_PCI_BUS);
 711
 712     return 0;
 713 }
 714
 715 static int bonito_initfn(PCIDevice *dev)
 716 {
 717     PCIBonitoState *s = DO_UPCAST(PCIBonitoState, dev, dev);
 718     SysBusDevice *sysbus = SYS_BUS_DEVICE(s->pcihost);
 719     PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost);
 720
 721     /* Bonito North Bridge, built on FPGA, VENDOR_ID/DEVICE_ID are "undefined" */
 722     pci_config_set_prog_interface(dev->config, 0x00);
 723
 724     /* set the north bridge register mapping */
 725     memory_region_init_io(&s->iomem, &bonito_ops, s,
 726                           "north-bridge-register", BONITO_INTERNAL_REG_SIZE);
 727     sysbus_init_mmio(sysbus, &s->iomem);
 728     sysbus_mmio_map(sysbus, 0, BONITO_INTERNAL_REG_BASE);
 729
 730     /* set the north bridge pci configure  mapping */
 731     memory_region_init_io(&phb->conf_mem, &bonito_pciconf_ops, s,
 732                           "north-bridge-pci-config", BONITO_PCICONFIG_SIZE);
 733     sysbus_init_mmio(sysbus, &phb->conf_mem);
 734     sysbus_mmio_map(sysbus, 1, BONITO_PCICONFIG_BASE);
 735
 736     /* set the south bridge pci configure  mapping */
 737     memory_region_init_io(&phb->data_mem, &bonito_spciconf_ops, s,
 738                           "south-bridge-pci-config", BONITO_SPCICONFIG_SIZE);
 739     sysbus_init_mmio(sysbus, &phb->data_mem);
 740     sysbus_mmio_map(sysbus, 2, BONITO_SPCICONFIG_BASE);
 741
 742     memory_region_init_io(&s->iomem_ldma, &bonito_ldma_ops, s,
 743                           "ldma", 0x100);
 744     sysbus_init_mmio(sysbus, &s->iomem_ldma);
 745     sysbus_mmio_map(sysbus, 3, 0xbfe00200);
 746
 747     memory_region_init_io(&s->iomem_cop, &bonito_cop_ops, s,
 748                           "cop", 0x100);
 749     sysbus_init_mmio(sysbus, &s->iomem_cop);
 750     sysbus_mmio_map(sysbus, 4, 0xbfe00300);
 751
 752     /* Map PCI IO Space  0x1fd0 0000 - 0x1fd1 0000 */
 753     s->bonito_pciio_start = BONITO_PCIIO_BASE;
 754     s->bonito_pciio_length = BONITO_PCIIO_SIZE;
 755     isa_mem_base = s->bonito_pciio_start;
 756     isa_mmio_init(s->bonito_pciio_start, s->bonito_pciio_length);
 757
 758     /* add pci local io mapping */
 759     s->bonito_localio_start = BONITO_DEV_BASE;
 760     s->bonito_localio_length = BONITO_DEV_SIZE;
 761     isa_mmio_init(s->bonito_localio_start, s->bonito_localio_length);
 762
 763     /* set the default value of north bridge pci config */
 764     pci_set_word(dev->config + PCI_COMMAND, 0x0000);
 765     pci_set_word(dev->config + PCI_STATUS, 0x0000);
 766     pci_set_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID, 0x0000);
 767     pci_set_word(dev->config + PCI_SUBSYSTEM_ID, 0x0000);
 768
 769     pci_set_byte(dev->config + PCI_INTERRUPT_LINE, 0x00);
 770     pci_set_byte(dev->config + PCI_INTERRUPT_PIN, 0x01);
 771     pci_set_byte(dev->config + PCI_MIN_GNT, 0x3c);
 772     pci_set_byte(dev->config + PCI_MAX_LAT, 0x00);
 773
 774     qemu_register_reset(bonito_reset, s);
 775
 776     return 0;
 777 }
 778
 779 PCIBus *bonito_init(qemu_irq *pic)
 780 {
 781     DeviceState *dev;
 782     BonitoState *pcihost;
 783     PCIHostState *phb;
 784     PCIBonitoState *s;
 785     PCIDevice *d;
 786
 787     dev = qdev_create(NULL, TYPE_BONITO_PCI_HOST_BRIDGE);
 788     phb = PCI_HOST_BRIDGE(dev);
 789     pcihost = BONITO_PCI_HOST_BRIDGE(dev);
 790     pcihost->pic = pic;
 791     qdev_init_nofail(dev);
 792
 793     /* set the pcihost pointer before bonito_initfn is called */
 794     d = pci_create(phb->bus, PCI_DEVFN(0, 0), "Bonito");
 795     s = DO_UPCAST(PCIBonitoState, dev, d);
 796     s->pcihost = pcihost;
 797     pcihost->pci_dev = s;
 798     qdev_init_nofail(DEVICE(d));
 799
 800     return phb->bus;
 801 }
 802
 803 static void bonito_class_init(ObjectClass *klass, void *data)
 804 {
 805     DeviceClass *dc = DEVICE_CLASS(klass);
 806     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 807
 808     k->init = bonito_initfn;
 809     k->vendor_id = 0xdf53;
 810     k->device_id = 0x00d5;
 811     k->revision = 0x01;
 812     k->class_id = PCI_CLASS_BRIDGE_HOST;
 813     dc->desc = "Host bridge";
 814     dc->no_user = 1;
 815     dc->vmsd = &vmstate_bonito;
 816 }
 817
 818 static const TypeInfo bonito_info = {
 819     .name          = "Bonito",
 820     .parent        = TYPE_PCI_DEVICE,
 821     .instance_size = sizeof(PCIBonitoState),
 822     .class_init    = bonito_class_init,
 823 };
 824
 825 static void bonito_pcihost_class_init(ObjectClass *klass, void *data)
 826 {
 827     DeviceClass *dc = DEVICE_CLASS(klass);
 828     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 829
 830     k->init = bonito_pcihost_initfn;
 831     dc->no_user = 1;
 832 }
 833
 834 static const TypeInfo bonito_pcihost_info = {
 835     .name          = TYPE_BONITO_PCI_HOST_BRIDGE,
 836     .parent        = TYPE_PCI_HOST_BRIDGE,
 837     .instance_size = sizeof(BonitoState),
 838     .class_init    = bonito_pcihost_class_init,
 839 };
 840
 841 static void bonito_register_types(void)
 842 {
 843     type_register_static(&bonito_pcihost_info);
 844     type_register_static(&bonito_info);
 845 }
 846
 847 type_init(bonito_register_types)