hw/gt64xxx.c

   1 /*
   2  * QEMU GT64120 PCI host
   3  *
   4  * Copyright (c) 2006,2007 Aurelien Jarno
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include "hw.h"
  26 #include "mips.h"
  27 #include "pci.h"
  28 #include "pci_host.h"
  29 #include "pc.h"
  30 #include "exec-memory.h"
  31
  32 //#define DEBUG
  33
  34 #ifdef DEBUG
  35 #define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
  36 #else
  37 #define DPRINTF(fmt, ...)
  38 #endif
  39
  40 #define GT_REGS                 (0x1000 >> 2)
  41
  42 /* CPU Configuration */
  43 #define GT_CPU                  (0x000 >> 2)
  44 #define GT_MULTI                (0x120 >> 2)
  45
  46 /* CPU Address Decode */
  47 #define GT_SCS10LD              (0x008 >> 2)
  48 #define GT_SCS10HD              (0x010 >> 2)
  49 #define GT_SCS32LD              (0x018 >> 2)
  50 #define GT_SCS32HD              (0x020 >> 2)
  51 #define GT_CS20LD               (0x028 >> 2)
  52 #define GT_CS20HD               (0x030 >> 2)
  53 #define GT_CS3BOOTLD            (0x038 >> 2)
  54 #define GT_CS3BOOTHD            (0x040 >> 2)
  55 #define GT_PCI0IOLD             (0x048 >> 2)
  56 #define GT_PCI0IOHD             (0x050 >> 2)
  57 #define GT_PCI0M0LD             (0x058 >> 2)
  58 #define GT_PCI0M0HD             (0x060 >> 2)
  59 #define GT_PCI0M1LD             (0x080 >> 2)
  60 #define GT_PCI0M1HD             (0x088 >> 2)
  61 #define GT_PCI1IOLD             (0x090 >> 2)
  62 #define GT_PCI1IOHD             (0x098 >> 2)
  63 #define GT_PCI1M0LD             (0x0a0 >> 2)
  64 #define GT_PCI1M0HD             (0x0a8 >> 2)
  65 #define GT_PCI1M1LD             (0x0b0 >> 2)
  66 #define GT_PCI1M1HD             (0x0b8 >> 2)
  67 #define GT_ISD                  (0x068 >> 2)
  68
  69 #define GT_SCS10AR              (0x0d0 >> 2)
  70 #define GT_SCS32AR              (0x0d8 >> 2)
  71 #define GT_CS20R                (0x0e0 >> 2)
  72 #define GT_CS3BOOTR             (0x0e8 >> 2)
  73
  74 #define GT_PCI0IOREMAP          (0x0f0 >> 2)
  75 #define GT_PCI0M0REMAP          (0x0f8 >> 2)
  76 #define GT_PCI0M1REMAP          (0x100 >> 2)
  77 #define GT_PCI1IOREMAP          (0x108 >> 2)
  78 #define GT_PCI1M0REMAP          (0x110 >> 2)
  79 #define GT_PCI1M1REMAP          (0x118 >> 2)
  80
  81 /* CPU Error Report */
  82 #define GT_CPUERR_ADDRLO        (0x070 >> 2)
  83 #define GT_CPUERR_ADDRHI        (0x078 >> 2)
  84 #define GT_CPUERR_DATALO        (0x128 >> 2)            /* GT-64120A only  */
  85 #define GT_CPUERR_DATAHI        (0x130 >> 2)            /* GT-64120A only  */
  86 #define GT_CPUERR_PARITY        (0x138 >> 2)            /* GT-64120A only  */
  87
  88 /* CPU Sync Barrier */
  89 #define GT_PCI0SYNC             (0x0c0 >> 2)
  90 #define GT_PCI1SYNC             (0x0c8 >> 2)
  91
  92 /* SDRAM and Device Address Decode */
  93 #define GT_SCS0LD               (0x400 >> 2)
  94 #define GT_SCS0HD               (0x404 >> 2)
  95 #define GT_SCS1LD               (0x408 >> 2)
  96 #define GT_SCS1HD               (0x40c >> 2)
  97 #define GT_SCS2LD               (0x410 >> 2)
  98 #define GT_SCS2HD               (0x414 >> 2)
  99 #define GT_SCS3LD               (0x418 >> 2)
 100 #define GT_SCS3HD               (0x41c >> 2)
 101 #define GT_CS0LD                (0x420 >> 2)
 102 #define GT_CS0HD                (0x424 >> 2)
 103 #define GT_CS1LD                (0x428 >> 2)
 104 #define GT_CS1HD                (0x42c >> 2)
 105 #define GT_CS2LD                (0x430 >> 2)
 106 #define GT_CS2HD                (0x434 >> 2)
 107 #define GT_CS3LD                (0x438 >> 2)
 108 #define GT_CS3HD                (0x43c >> 2)
 109 #define GT_BOOTLD               (0x440 >> 2)
 110 #define GT_BOOTHD               (0x444 >> 2)
 111 #define GT_ADERR                (0x470 >> 2)
 112
 113 /* SDRAM Configuration */
 114 #define GT_SDRAM_CFG            (0x448 >> 2)
 115 #define GT_SDRAM_OPMODE         (0x474 >> 2)
 116 #define GT_SDRAM_BM             (0x478 >> 2)
 117 #define GT_SDRAM_ADDRDECODE     (0x47c >> 2)
 118
 119 /* SDRAM Parameters */
 120 #define GT_SDRAM_B0             (0x44c >> 2)
 121 #define GT_SDRAM_B1             (0x450 >> 2)
 122 #define GT_SDRAM_B2             (0x454 >> 2)
 123 #define GT_SDRAM_B3             (0x458 >> 2)
 124
 125 /* Device Parameters */
 126 #define GT_DEV_B0               (0x45c >> 2)
 127 #define GT_DEV_B1               (0x460 >> 2)
 128 #define GT_DEV_B2               (0x464 >> 2)
 129 #define GT_DEV_B3               (0x468 >> 2)
 130 #define GT_DEV_BOOT             (0x46c >> 2)
 131
 132 /* ECC */
 133 #define GT_ECC_ERRDATALO        (0x480 >> 2)            /* GT-64120A only  */
 134 #define GT_ECC_ERRDATAHI        (0x484 >> 2)            /* GT-64120A only  */
 135 #define GT_ECC_MEM              (0x488 >> 2)            /* GT-64120A only  */
 136 #define GT_ECC_CALC             (0x48c >> 2)            /* GT-64120A only  */
 137 #define GT_ECC_ERRADDR          (0x490 >> 2)            /* GT-64120A only  */
 138
 139 /* DMA Record */
 140 #define GT_DMA0_CNT             (0x800 >> 2)
 141 #define GT_DMA1_CNT             (0x804 >> 2)
 142 #define GT_DMA2_CNT             (0x808 >> 2)
 143 #define GT_DMA3_CNT             (0x80c >> 2)
 144 #define GT_DMA0_SA              (0x810 >> 2)
 145 #define GT_DMA1_SA              (0x814 >> 2)
 146 #define GT_DMA2_SA              (0x818 >> 2)
 147 #define GT_DMA3_SA              (0x81c >> 2)
 148 #define GT_DMA0_DA              (0x820 >> 2)
 149 #define GT_DMA1_DA              (0x824 >> 2)
 150 #define GT_DMA2_DA              (0x828 >> 2)
 151 #define GT_DMA3_DA              (0x82c >> 2)
 152 #define GT_DMA0_NEXT            (0x830 >> 2)
 153 #define GT_DMA1_NEXT            (0x834 >> 2)
 154 #define GT_DMA2_NEXT            (0x838 >> 2)
 155 #define GT_DMA3_NEXT            (0x83c >> 2)
 156 #define GT_DMA0_CUR             (0x870 >> 2)
 157 #define GT_DMA1_CUR             (0x874 >> 2)
 158 #define GT_DMA2_CUR             (0x878 >> 2)
 159 #define GT_DMA3_CUR             (0x87c >> 2)
 160
 161 /* DMA Channel Control */
 162 #define GT_DMA0_CTRL            (0x840 >> 2)
 163 #define GT_DMA1_CTRL            (0x844 >> 2)
 164 #define GT_DMA2_CTRL            (0x848 >> 2)
 165 #define GT_DMA3_CTRL            (0x84c >> 2)
 166
 167 /* DMA Arbiter */
 168 #define GT_DMA_ARB              (0x860 >> 2)
 169
 170 /* Timer/Counter */
 171 #define GT_TC0                  (0x850 >> 2)
 172 #define GT_TC1                  (0x854 >> 2)
 173 #define GT_TC2                  (0x858 >> 2)
 174 #define GT_TC3                  (0x85c >> 2)
 175 #define GT_TC_CONTROL           (0x864 >> 2)
 176
 177 /* PCI Internal */
 178 #define GT_PCI0_CMD             (0xc00 >> 2)
 179 #define GT_PCI0_TOR             (0xc04 >> 2)
 180 #define GT_PCI0_BS_SCS10        (0xc08 >> 2)
 181 #define GT_PCI0_BS_SCS32        (0xc0c >> 2)
 182 #define GT_PCI0_BS_CS20         (0xc10 >> 2)
 183 #define GT_PCI0_BS_CS3BT        (0xc14 >> 2)
 184 #define GT_PCI1_IACK            (0xc30 >> 2)
 185 #define GT_PCI0_IACK            (0xc34 >> 2)
 186 #define GT_PCI0_BARE            (0xc3c >> 2)
 187 #define GT_PCI0_PREFMBR         (0xc40 >> 2)
 188 #define GT_PCI0_SCS10_BAR       (0xc48 >> 2)
 189 #define GT_PCI0_SCS32_BAR       (0xc4c >> 2)
 190 #define GT_PCI0_CS20_BAR        (0xc50 >> 2)
 191 #define GT_PCI0_CS3BT_BAR       (0xc54 >> 2)
 192 #define GT_PCI0_SSCS10_BAR      (0xc58 >> 2)
 193 #define GT_PCI0_SSCS32_BAR      (0xc5c >> 2)
 194 #define GT_PCI0_SCS3BT_BAR      (0xc64 >> 2)
 195 #define GT_PCI1_CMD             (0xc80 >> 2)
 196 #define GT_PCI1_TOR             (0xc84 >> 2)
 197 #define GT_PCI1_BS_SCS10        (0xc88 >> 2)
 198 #define GT_PCI1_BS_SCS32        (0xc8c >> 2)
 199 #define GT_PCI1_BS_CS20         (0xc90 >> 2)
 200 #define GT_PCI1_BS_CS3BT        (0xc94 >> 2)
 201 #define GT_PCI1_BARE            (0xcbc >> 2)
 202 #define GT_PCI1_PREFMBR         (0xcc0 >> 2)
 203 #define GT_PCI1_SCS10_BAR       (0xcc8 >> 2)
 204 #define GT_PCI1_SCS32_BAR       (0xccc >> 2)
 205 #define GT_PCI1_CS20_BAR        (0xcd0 >> 2)
 206 #define GT_PCI1_CS3BT_BAR       (0xcd4 >> 2)
 207 #define GT_PCI1_SSCS10_BAR      (0xcd8 >> 2)
 208 #define GT_PCI1_SSCS32_BAR      (0xcdc >> 2)
 209 #define GT_PCI1_SCS3BT_BAR      (0xce4 >> 2)
 210 #define GT_PCI1_CFGADDR         (0xcf0 >> 2)
 211 #define GT_PCI1_CFGDATA         (0xcf4 >> 2)
 212 #define GT_PCI0_CFGADDR         (0xcf8 >> 2)
 213 #define GT_PCI0_CFGDATA         (0xcfc >> 2)
 214
 215 /* Interrupts */
 216 #define GT_INTRCAUSE            (0xc18 >> 2)
 217 #define GT_INTRMASK             (0xc1c >> 2)
 218 #define GT_PCI0_ICMASK          (0xc24 >> 2)
 219 #define GT_PCI0_SERR0MASK       (0xc28 >> 2)
 220 #define GT_CPU_INTSEL           (0xc70 >> 2)
 221 #define GT_PCI0_INTSEL          (0xc74 >> 2)
 222 #define GT_HINTRCAUSE           (0xc98 >> 2)
 223 #define GT_HINTRMASK            (0xc9c >> 2)
 224 #define GT_PCI0_HICMASK         (0xca4 >> 2)
 225 #define GT_PCI1_SERR1MASK       (0xca8 >> 2)
 226
 227 #define PCI_MAPPING_ENTRY(regname)            \
 228     target_phys_addr_t regname ##_start;      \
 229     target_phys_addr_t regname ##_length;     \
 230     MemoryRegion regname ##_mem
 231
 232 typedef struct GT64120State {
 233     SysBusDevice busdev;
 234     PCIHostState pci;
 235     uint32_t regs[GT_REGS];
 236     PCI_MAPPING_ENTRY(PCI0IO);
 237     PCI_MAPPING_ENTRY(ISD);
 238 } GT64120State;
 239
 240 /* Adjust range to avoid touching space which isn't mappable via PCI */
 241 /* XXX: Hardcoded values for Malta: 0x1e000000 - 0x1f100000
 242                                     0x1fc00000 - 0x1fd00000  */
 243 static void check_reserved_space (target_phys_addr_t *start,
 244                                   target_phys_addr_t *length)
 245 {
 246     target_phys_addr_t begin = *start;
 247     target_phys_addr_t end = *start + *length;
 248
 249     if (end >= 0x1e000000LL && end < 0x1f100000LL)
 250         end = 0x1e000000LL;
 251     if (begin >= 0x1e000000LL && begin < 0x1f100000LL)
 252         begin = 0x1f100000LL;
 253     if (end >= 0x1fc00000LL && end < 0x1fd00000LL)
 254         end = 0x1fc00000LL;
 255     if (begin >= 0x1fc00000LL && begin < 0x1fd00000LL)
 256         begin = 0x1fd00000LL;
 257     /* XXX: This is broken when a reserved range splits the requested range */
 258     if (end >= 0x1f100000LL && begin < 0x1e000000LL)
 259         end = 0x1e000000LL;
 260     if (end >= 0x1fd00000LL && begin < 0x1fc00000LL)
 261         end = 0x1fc00000LL;
 262
 263     *start = begin;
 264     *length = end - begin;
 265 }
 266
 267 static void gt64120_isd_mapping(GT64120State *s)
 268 {
 269     target_phys_addr_t start = s->regs[GT_ISD] << 21;
 270     target_phys_addr_t length = 0x1000;
 271
 272     if (s->ISD_length) {
 273         memory_region_del_subregion(get_system_memory(), &s->ISD_mem);
 274     }
 275     check_reserved_space(&start, &length);
 276     length = 0x1000;
 277     /* Map new address */
 278     DPRINTF("ISD: "TARGET_FMT_plx"@"TARGET_FMT_plx
 279         " -> "TARGET_FMT_plx"@"TARGET_FMT_plx"\n",
 280         s->ISD_length, s->ISD_start, length, start);
 281     s->ISD_start = start;
 282     s->ISD_length = length;
 283     memory_region_add_subregion(get_system_memory(), s->ISD_start, &s->ISD_mem);
 284 }
 285
 286 static void gt64120_pci_mapping(GT64120State *s)
 287 {
 288     /* Update IO mapping */
 289     if ((s->regs[GT_PCI0IOLD] & 0x7f) <= s->regs[GT_PCI0IOHD])
 290     {
 291       /* Unmap old IO address */
 292       if (s->PCI0IO_length)
 293       {
 294           memory_region_del_subregion(get_system_memory(), &s->PCI0IO_mem);
 295           memory_region_destroy(&s->PCI0IO_mem);
 296       }
 297       /* Map new IO address */
 298       s->PCI0IO_start = s->regs[GT_PCI0IOLD] << 21;
 299       s->PCI0IO_length = ((s->regs[GT_PCI0IOHD] + 1) - (s->regs[GT_PCI0IOLD] & 0x7f)) << 21;
 300       isa_mem_base = s->PCI0IO_start;
 301       if (s->PCI0IO_length) {
 302           isa_mmio_setup(&s->PCI0IO_mem, s->PCI0IO_length);
 303           memory_region_add_subregion(get_system_memory(), s->PCI0IO_start,
 304                                       &s->PCI0IO_mem);
 305       }
 306     }
 307 }
 308
 309 static void gt64120_writel (void *opaque, target_phys_addr_t addr,
 310                             uint64_t val, unsigned size)
 311 {
 312     GT64120State *s = opaque;
 313     uint32_t saddr;
 314
 315     if (!(s->regs[GT_CPU] & 0x00001000))
 316         val = bswap32(val);
 317
 318     saddr = (addr & 0xfff) >> 2;
 319     switch (saddr) {
 320
 321     /* CPU Configuration */
 322     case GT_CPU:
 323         s->regs[GT_CPU] = val;
 324         break;
 325     case GT_MULTI:
 326         /* Read-only register as only one GT64xxx is present on the CPU bus */
 327         break;
 328
 329     /* CPU Address Decode */
 330     case GT_PCI0IOLD:
 331         s->regs[GT_PCI0IOLD]    = val & 0x00007fff;
 332         s->regs[GT_PCI0IOREMAP] = val & 0x000007ff;
 333         gt64120_pci_mapping(s);
 334         break;
 335     case GT_PCI0M0LD:
 336         s->regs[GT_PCI0M0LD]    = val & 0x00007fff;
 337         s->regs[GT_PCI0M0REMAP] = val & 0x000007ff;
 338         break;
 339     case GT_PCI0M1LD:
 340         s->regs[GT_PCI0M1LD]    = val & 0x00007fff;
 341         s->regs[GT_PCI0M1REMAP] = val & 0x000007ff;
 342         break;
 343     case GT_PCI1IOLD:
 344         s->regs[GT_PCI1IOLD]    = val & 0x00007fff;
 345         s->regs[GT_PCI1IOREMAP] = val & 0x000007ff;
 346         break;
 347     case GT_PCI1M0LD:
 348         s->regs[GT_PCI1M0LD]    = val & 0x00007fff;
 349         s->regs[GT_PCI1M0REMAP] = val & 0x000007ff;
 350         break;
 351     case GT_PCI1M1LD:
 352         s->regs[GT_PCI1M1LD]    = val & 0x00007fff;
 353         s->regs[GT_PCI1M1REMAP] = val & 0x000007ff;
 354         break;
 355     case GT_PCI0IOHD:
 356         s->regs[saddr] = val & 0x0000007f;
 357         gt64120_pci_mapping(s);
 358         break;
 359     case GT_PCI0M0HD:
 360     case GT_PCI0M1HD:
 361     case GT_PCI1IOHD:
 362     case GT_PCI1M0HD:
 363     case GT_PCI1M1HD:
 364         s->regs[saddr] = val & 0x0000007f;
 365         break;
 366     case GT_ISD:
 367         s->regs[saddr] = val & 0x00007fff;
 368         gt64120_isd_mapping(s);
 369         break;
 370
 371     case GT_PCI0IOREMAP:
 372     case GT_PCI0M0REMAP:
 373     case GT_PCI0M1REMAP:
 374     case GT_PCI1IOREMAP:
 375     case GT_PCI1M0REMAP:
 376     case GT_PCI1M1REMAP:
 377         s->regs[saddr] = val & 0x000007ff;
 378         break;
 379
 380     /* CPU Error Report */
 381     case GT_CPUERR_ADDRLO:
 382     case GT_CPUERR_ADDRHI:
 383     case GT_CPUERR_DATALO:
 384     case GT_CPUERR_DATAHI:
 385     case GT_CPUERR_PARITY:
 386         /* Read-only registers, do nothing */
 387         break;
 388
 389     /* CPU Sync Barrier */
 390     case GT_PCI0SYNC:
 391     case GT_PCI1SYNC:
 392         /* Read-only registers, do nothing */
 393         break;
 394
 395     /* SDRAM and Device Address Decode */
 396     case GT_SCS0LD:
 397     case GT_SCS0HD:
 398     case GT_SCS1LD:
 399     case GT_SCS1HD:
 400     case GT_SCS2LD:
 401     case GT_SCS2HD:
 402     case GT_SCS3LD:
 403     case GT_SCS3HD:
 404     case GT_CS0LD:
 405     case GT_CS0HD:
 406     case GT_CS1LD:
 407     case GT_CS1HD:
 408     case GT_CS2LD:
 409     case GT_CS2HD:
 410     case GT_CS3LD:
 411     case GT_CS3HD:
 412     case GT_BOOTLD:
 413     case GT_BOOTHD:
 414     case GT_ADERR:
 415     /* SDRAM Configuration */
 416     case GT_SDRAM_CFG:
 417     case GT_SDRAM_OPMODE:
 418     case GT_SDRAM_BM:
 419     case GT_SDRAM_ADDRDECODE:
 420         /* Accept and ignore SDRAM interleave configuration */
 421         s->regs[saddr] = val;
 422         break;
 423
 424     /* Device Parameters */
 425     case GT_DEV_B0:
 426     case GT_DEV_B1:
 427     case GT_DEV_B2:
 428     case GT_DEV_B3:
 429     case GT_DEV_BOOT:
 430         /* Not implemented */
 431         DPRINTF ("Unimplemented device register offset 0x%x\n", saddr << 2);
 432         break;
 433
 434     /* ECC */
 435     case GT_ECC_ERRDATALO:
 436     case GT_ECC_ERRDATAHI:
 437     case GT_ECC_MEM:
 438     case GT_ECC_CALC:
 439     case GT_ECC_ERRADDR:
 440         /* Read-only registers, do nothing */
 441         break;
 442
 443     /* DMA Record */
 444     case GT_DMA0_CNT:
 445     case GT_DMA1_CNT:
 446     case GT_DMA2_CNT:
 447     case GT_DMA3_CNT:
 448     case GT_DMA0_SA:
 449     case GT_DMA1_SA:
 450     case GT_DMA2_SA:
 451     case GT_DMA3_SA:
 452     case GT_DMA0_DA:
 453     case GT_DMA1_DA:
 454     case GT_DMA2_DA:
 455     case GT_DMA3_DA:
 456     case GT_DMA0_NEXT:
 457     case GT_DMA1_NEXT:
 458     case GT_DMA2_NEXT:
 459     case GT_DMA3_NEXT:
 460     case GT_DMA0_CUR:
 461     case GT_DMA1_CUR:
 462     case GT_DMA2_CUR:
 463     case GT_DMA3_CUR:
 464         /* Not implemented */
 465         DPRINTF ("Unimplemented DMA register offset 0x%x\n", saddr << 2);
 466         break;
 467
 468     /* DMA Channel Control */
 469     case GT_DMA0_CTRL:
 470     case GT_DMA1_CTRL:
 471     case GT_DMA2_CTRL:
 472     case GT_DMA3_CTRL:
 473         /* Not implemented */
 474         DPRINTF ("Unimplemented DMA register offset 0x%x\n", saddr << 2);
 475         break;
 476
 477     /* DMA Arbiter */
 478     case GT_DMA_ARB:
 479         /* Not implemented */
 480         DPRINTF ("Unimplemented DMA register offset 0x%x\n", saddr << 2);
 481         break;
 482
 483     /* Timer/Counter */
 484     case GT_TC0:
 485     case GT_TC1:
 486     case GT_TC2:
 487     case GT_TC3:
 488     case GT_TC_CONTROL:
 489         /* Not implemented */
 490         DPRINTF ("Unimplemented timer register offset 0x%x\n", saddr << 2);
 491         break;
 492
 493     /* PCI Internal */
 494     case GT_PCI0_CMD:
 495     case GT_PCI1_CMD:
 496         s->regs[saddr] = val & 0x0401fc0f;
 497         break;
 498     case GT_PCI0_TOR:
 499     case GT_PCI0_BS_SCS10:
 500     case GT_PCI0_BS_SCS32:
 501     case GT_PCI0_BS_CS20:
 502     case GT_PCI0_BS_CS3BT:
 503     case GT_PCI1_IACK:
 504     case GT_PCI0_IACK:
 505     case GT_PCI0_BARE:
 506     case GT_PCI0_PREFMBR:
 507     case GT_PCI0_SCS10_BAR:
 508     case GT_PCI0_SCS32_BAR:
 509     case GT_PCI0_CS20_BAR:
 510     case GT_PCI0_CS3BT_BAR:
 511     case GT_PCI0_SSCS10_BAR:
 512     case GT_PCI0_SSCS32_BAR:
 513     case GT_PCI0_SCS3BT_BAR:
 514     case GT_PCI1_TOR:
 515     case GT_PCI1_BS_SCS10:
 516     case GT_PCI1_BS_SCS32:
 517     case GT_PCI1_BS_CS20:
 518     case GT_PCI1_BS_CS3BT:
 519     case GT_PCI1_BARE:
 520     case GT_PCI1_PREFMBR:
 521     case GT_PCI1_SCS10_BAR:
 522     case GT_PCI1_SCS32_BAR:
 523     case GT_PCI1_CS20_BAR:
 524     case GT_PCI1_CS3BT_BAR:
 525     case GT_PCI1_SSCS10_BAR:
 526     case GT_PCI1_SSCS32_BAR:
 527     case GT_PCI1_SCS3BT_BAR:
 528     case GT_PCI1_CFGADDR:
 529     case GT_PCI1_CFGDATA:
 530         /* not implemented */
 531         break;
 532     case GT_PCI0_CFGADDR:
 533         s->pci.config_reg = val & 0x80fffffc;
 534         break;
 535     case GT_PCI0_CFGDATA:
 536         if (!(s->regs[GT_PCI0_CMD] & 1) && (s->pci.config_reg & 0x00fff800))
 537             val = bswap32(val);
 538         if (s->pci.config_reg & (1u << 31))
 539             pci_data_write(s->pci.bus, s->pci.config_reg, val, 4);
 540         break;
 541
 542     /* Interrupts */
 543     case GT_INTRCAUSE:
 544         /* not really implemented */
 545         s->regs[saddr] = ~(~(s->regs[saddr]) | ~(val & 0xfffffffe));
 546         s->regs[saddr] |= !!(s->regs[saddr] & 0xfffffffe);
 547         DPRINTF("INTRCAUSE %" PRIx64 "\n", val);
 548         break;
 549     case GT_INTRMASK:
 550         s->regs[saddr] = val & 0x3c3ffffe;
 551         DPRINTF("INTRMASK %" PRIx64 "\n", val);
 552         break;
 553     case GT_PCI0_ICMASK:
 554         s->regs[saddr] = val & 0x03fffffe;
 555         DPRINTF("ICMASK %" PRIx64 "\n", val);
 556         break;
 557     case GT_PCI0_SERR0MASK:
 558         s->regs[saddr] = val & 0x0000003f;
 559         DPRINTF("SERR0MASK %" PRIx64 "\n", val);
 560         break;
 561
 562     /* Reserved when only PCI_0 is configured. */
 563     case GT_HINTRCAUSE:
 564     case GT_CPU_INTSEL:
 565     case GT_PCI0_INTSEL:
 566     case GT_HINTRMASK:
 567     case GT_PCI0_HICMASK:
 568     case GT_PCI1_SERR1MASK:
 569         /* not implemented */
 570         break;
 571
 572     /* SDRAM Parameters */
 573     case GT_SDRAM_B0:
 574     case GT_SDRAM_B1:
 575     case GT_SDRAM_B2:
 576     case GT_SDRAM_B3:
 577         /* We don't simulate electrical parameters of the SDRAM.
 578            Accept, but ignore the values. */
 579         s->regs[saddr] = val;
 580         break;
 581
 582     default:
 583         DPRINTF ("Bad register offset 0x%x\n", (int)addr);
 584         break;
 585     }
 586 }
 587
 588 static uint64_t gt64120_readl (void *opaque,
 589                                target_phys_addr_t addr, unsigned size)
 590 {
 591     GT64120State *s = opaque;
 592     uint32_t val;
 593     uint32_t saddr;
 594
 595     saddr = (addr & 0xfff) >> 2;
 596     switch (saddr) {
 597
 598     /* CPU Configuration */
 599     case GT_MULTI:
 600         /* Only one GT64xxx is present on the CPU bus, return
 601            the initial value */
 602         val = s->regs[saddr];
 603         break;
 604
 605     /* CPU Error Report */
 606     case GT_CPUERR_ADDRLO:
 607     case GT_CPUERR_ADDRHI:
 608     case GT_CPUERR_DATALO:
 609     case GT_CPUERR_DATAHI:
 610     case GT_CPUERR_PARITY:
 611         /* Emulated memory has no error, always return the initial
 612            values */
 613         val = s->regs[saddr];
 614         break;
 615
 616     /* CPU Sync Barrier */
 617     case GT_PCI0SYNC:
 618     case GT_PCI1SYNC:
 619         /* Reading those register should empty all FIFO on the PCI
 620            bus, which are not emulated. The return value should be
 621            a random value that should be ignored. */
 622         val = 0xc000ffee;
 623         break;
 624
 625     /* ECC */
 626     case GT_ECC_ERRDATALO:
 627     case GT_ECC_ERRDATAHI:
 628     case GT_ECC_MEM:
 629     case GT_ECC_CALC:
 630     case GT_ECC_ERRADDR:
 631         /* Emulated memory has no error, always return the initial
 632            values */
 633         val = s->regs[saddr];
 634         break;
 635
 636     case GT_CPU:
 637     case GT_SCS10LD:
 638     case GT_SCS10HD:
 639     case GT_SCS32LD:
 640     case GT_SCS32HD:
 641     case GT_CS20LD:
 642     case GT_CS20HD:
 643     case GT_CS3BOOTLD:
 644     case GT_CS3BOOTHD:
 645     case GT_SCS10AR:
 646     case GT_SCS32AR:
 647     case GT_CS20R:
 648     case GT_CS3BOOTR:
 649     case GT_PCI0IOLD:
 650     case GT_PCI0M0LD:
 651     case GT_PCI0M1LD:
 652     case GT_PCI1IOLD:
 653     case GT_PCI1M0LD:
 654     case GT_PCI1M1LD:
 655     case GT_PCI0IOHD:
 656     case GT_PCI0M0HD:
 657     case GT_PCI0M1HD:
 658     case GT_PCI1IOHD:
 659     case GT_PCI1M0HD:
 660     case GT_PCI1M1HD:
 661     case GT_PCI0IOREMAP:
 662     case GT_PCI0M0REMAP:
 663     case GT_PCI0M1REMAP:
 664     case GT_PCI1IOREMAP:
 665     case GT_PCI1M0REMAP:
 666     case GT_PCI1M1REMAP:
 667     case GT_ISD:
 668         val = s->regs[saddr];
 669         break;
 670     case GT_PCI0_IACK:
 671         /* Read the IRQ number */
 672         val = pic_read_irq(isa_pic);
 673         break;
 674
 675     /* SDRAM and Device Address Decode */
 676     case GT_SCS0LD:
 677     case GT_SCS0HD:
 678     case GT_SCS1LD:
 679     case GT_SCS1HD:
 680     case GT_SCS2LD:
 681     case GT_SCS2HD:
 682     case GT_SCS3LD:
 683     case GT_SCS3HD:
 684     case GT_CS0LD:
 685     case GT_CS0HD:
 686     case GT_CS1LD:
 687     case GT_CS1HD:
 688     case GT_CS2LD:
 689     case GT_CS2HD:
 690     case GT_CS3LD:
 691     case GT_CS3HD:
 692     case GT_BOOTLD:
 693     case GT_BOOTHD:
 694     case GT_ADERR:
 695         val = s->regs[saddr];
 696         break;
 697
 698     /* SDRAM Configuration */
 699     case GT_SDRAM_CFG:
 700     case GT_SDRAM_OPMODE:
 701     case GT_SDRAM_BM:
 702     case GT_SDRAM_ADDRDECODE:
 703         val = s->regs[saddr];
 704         break;
 705
 706     /* SDRAM Parameters */
 707     case GT_SDRAM_B0:
 708     case GT_SDRAM_B1:
 709     case GT_SDRAM_B2:
 710     case GT_SDRAM_B3:
 711         /* We don't simulate electrical parameters of the SDRAM.
 712            Just return the last written value. */
 713         val = s->regs[saddr];
 714         break;
 715
 716     /* Device Parameters */
 717     case GT_DEV_B0:
 718     case GT_DEV_B1:
 719     case GT_DEV_B2:
 720     case GT_DEV_B3:
 721     case GT_DEV_BOOT:
 722         val = s->regs[saddr];
 723         break;
 724
 725     /* DMA Record */
 726     case GT_DMA0_CNT:
 727     case GT_DMA1_CNT:
 728     case GT_DMA2_CNT:
 729     case GT_DMA3_CNT:
 730     case GT_DMA0_SA:
 731     case GT_DMA1_SA:
 732     case GT_DMA2_SA:
 733     case GT_DMA3_SA:
 734     case GT_DMA0_DA:
 735     case GT_DMA1_DA:
 736     case GT_DMA2_DA:
 737     case GT_DMA3_DA:
 738     case GT_DMA0_NEXT:
 739     case GT_DMA1_NEXT:
 740     case GT_DMA2_NEXT:
 741     case GT_DMA3_NEXT:
 742     case GT_DMA0_CUR:
 743     case GT_DMA1_CUR:
 744     case GT_DMA2_CUR:
 745     case GT_DMA3_CUR:
 746         val = s->regs[saddr];
 747         break;
 748
 749     /* DMA Channel Control */
 750     case GT_DMA0_CTRL:
 751     case GT_DMA1_CTRL:
 752     case GT_DMA2_CTRL:
 753     case GT_DMA3_CTRL:
 754         val = s->regs[saddr];
 755         break;
 756
 757     /* DMA Arbiter */
 758     case GT_DMA_ARB:
 759         val = s->regs[saddr];
 760         break;
 761
 762     /* Timer/Counter */
 763     case GT_TC0:
 764     case GT_TC1:
 765     case GT_TC2:
 766     case GT_TC3:
 767     case GT_TC_CONTROL:
 768         val = s->regs[saddr];
 769         break;
 770
 771     /* PCI Internal */
 772     case GT_PCI0_CFGADDR:
 773         val = s->pci.config_reg;
 774         break;
 775     case GT_PCI0_CFGDATA:
 776         if (!(s->pci.config_reg & (1 << 31)))
 777             val = 0xffffffff;
 778         else
 779             val = pci_data_read(s->pci.bus, s->pci.config_reg, 4);
 780         if (!(s->regs[GT_PCI0_CMD] & 1) && (s->pci.config_reg & 0x00fff800))
 781             val = bswap32(val);
 782         break;
 783
 784     case GT_PCI0_CMD:
 785     case GT_PCI0_TOR:
 786     case GT_PCI0_BS_SCS10:
 787     case GT_PCI0_BS_SCS32:
 788     case GT_PCI0_BS_CS20:
 789     case GT_PCI0_BS_CS3BT:
 790     case GT_PCI1_IACK:
 791     case GT_PCI0_BARE:
 792     case GT_PCI0_PREFMBR:
 793     case GT_PCI0_SCS10_BAR:
 794     case GT_PCI0_SCS32_BAR:
 795     case GT_PCI0_CS20_BAR:
 796     case GT_PCI0_CS3BT_BAR:
 797     case GT_PCI0_SSCS10_BAR:
 798     case GT_PCI0_SSCS32_BAR:
 799     case GT_PCI0_SCS3BT_BAR:
 800     case GT_PCI1_CMD:
 801     case GT_PCI1_TOR:
 802     case GT_PCI1_BS_SCS10:
 803     case GT_PCI1_BS_SCS32:
 804     case GT_PCI1_BS_CS20:
 805     case GT_PCI1_BS_CS3BT:
 806     case GT_PCI1_BARE:
 807     case GT_PCI1_PREFMBR:
 808     case GT_PCI1_SCS10_BAR:
 809     case GT_PCI1_SCS32_BAR:
 810     case GT_PCI1_CS20_BAR:
 811     case GT_PCI1_CS3BT_BAR:
 812     case GT_PCI1_SSCS10_BAR:
 813     case GT_PCI1_SSCS32_BAR:
 814     case GT_PCI1_SCS3BT_BAR:
 815     case GT_PCI1_CFGADDR:
 816     case GT_PCI1_CFGDATA:
 817         val = s->regs[saddr];
 818         break;
 819
 820     /* Interrupts */
 821     case GT_INTRCAUSE:
 822         val = s->regs[saddr];
 823         DPRINTF("INTRCAUSE %x\n", val);
 824         break;
 825     case GT_INTRMASK:
 826         val = s->regs[saddr];
 827         DPRINTF("INTRMASK %x\n", val);
 828         break;
 829     case GT_PCI0_ICMASK:
 830         val = s->regs[saddr];
 831         DPRINTF("ICMASK %x\n", val);
 832         break;
 833     case GT_PCI0_SERR0MASK:
 834         val = s->regs[saddr];
 835         DPRINTF("SERR0MASK %x\n", val);
 836         break;
 837
 838     /* Reserved when only PCI_0 is configured. */
 839     case GT_HINTRCAUSE:
 840     case GT_CPU_INTSEL:
 841     case GT_PCI0_INTSEL:
 842     case GT_HINTRMASK:
 843     case GT_PCI0_HICMASK:
 844     case GT_PCI1_SERR1MASK:
 845         val = s->regs[saddr];
 846         break;
 847
 848     default:
 849         val = s->regs[saddr];
 850         DPRINTF ("Bad register offset 0x%x\n", (int)addr);
 851         break;
 852     }
 853
 854     if (!(s->regs[GT_CPU] & 0x00001000))
 855         val = bswap32(val);
 856
 857     return val;
 858 }
 859
 860 static const MemoryRegionOps isd_mem_ops = {
 861     .read = gt64120_readl,
 862     .write = gt64120_writel,
 863     .endianness = DEVICE_NATIVE_ENDIAN,
 864 };
 865
 866 static int gt64120_pci_map_irq(PCIDevice *pci_dev, int irq_num)
 867 {
 868     int slot;
 869
 870     slot = (pci_dev->devfn >> 3);
 871
 872     switch (slot) {
 873       /* PIIX4 USB */
 874       case 10:
 875         return 3;
 876       /* AMD 79C973 Ethernet */
 877       case 11:
 878         return 1;
 879       /* Crystal 4281 Sound */
 880       case 12:
 881         return 2;
 882       /* PCI slot 1 to 4 */
 883       case 18 ... 21:
 884         return ((slot - 18) + irq_num) & 0x03;
 885       /* Unknown device, don't do any translation */
 886       default:
 887         return irq_num;
 888     }
 889 }
 890
 891 static int pci_irq_levels[4];
 892
 893 static void gt64120_pci_set_irq(void *opaque, int irq_num, int level)
 894 {
 895     int i, pic_irq, pic_level;
 896     qemu_irq *pic = opaque;
 897
 898     pci_irq_levels[irq_num] = level;
 899
 900     /* now we change the pic irq level according to the piix irq mappings */
 901     /* XXX: optimize */
 902     pic_irq = piix4_dev->config[0x60 + irq_num];
 903     if (pic_irq < 16) {
 904         /* The pic level is the logical OR of all the PCI irqs mapped
 905            to it */
 906         pic_level = 0;
 907         for (i = 0; i < 4; i++) {
 908             if (pic_irq == piix4_dev->config[0x60 + i])
 909                 pic_level |= pci_irq_levels[i];
 910         }
 911         qemu_set_irq(pic[pic_irq], pic_level);
 912     }
 913 }
 914
 915
 916 static void gt64120_reset(void *opaque)
 917 {
 918     GT64120State *s = opaque;
 919
 920     /* FIXME: Malta specific hw assumptions ahead */
 921
 922     /* CPU Configuration */
 923 #ifdef TARGET_WORDS_BIGENDIAN
 924     s->regs[GT_CPU]           = 0x00000000;
 925 #else
 926     s->regs[GT_CPU]           = 0x00001000;
 927 #endif
 928     s->regs[GT_MULTI]         = 0x00000003;
 929
 930     /* CPU Address decode */
 931     s->regs[GT_SCS10LD]       = 0x00000000;
 932     s->regs[GT_SCS10HD]       = 0x00000007;
 933     s->regs[GT_SCS32LD]       = 0x00000008;
 934     s->regs[GT_SCS32HD]       = 0x0000000f;
 935     s->regs[GT_CS20LD]        = 0x000000e0;
 936     s->regs[GT_CS20HD]        = 0x00000070;
 937     s->regs[GT_CS3BOOTLD]     = 0x000000f8;
 938     s->regs[GT_CS3BOOTHD]     = 0x0000007f;
 939
 940     s->regs[GT_PCI0IOLD]      = 0x00000080;
 941     s->regs[GT_PCI0IOHD]      = 0x0000000f;
 942     s->regs[GT_PCI0M0LD]      = 0x00000090;
 943     s->regs[GT_PCI0M0HD]      = 0x0000001f;
 944     s->regs[GT_ISD]           = 0x000000a0;
 945     s->regs[GT_PCI0M1LD]      = 0x00000790;
 946     s->regs[GT_PCI0M1HD]      = 0x0000001f;
 947     s->regs[GT_PCI1IOLD]      = 0x00000100;
 948     s->regs[GT_PCI1IOHD]      = 0x0000000f;
 949     s->regs[GT_PCI1M0LD]      = 0x00000110;
 950     s->regs[GT_PCI1M0HD]      = 0x0000001f;
 951     s->regs[GT_PCI1M1LD]      = 0x00000120;
 952     s->regs[GT_PCI1M1HD]      = 0x0000002f;
 953
 954     s->regs[GT_SCS10AR]       = 0x00000000;
 955     s->regs[GT_SCS32AR]       = 0x00000008;
 956     s->regs[GT_CS20R]         = 0x000000e0;
 957     s->regs[GT_CS3BOOTR]      = 0x000000f8;
 958
 959     s->regs[GT_PCI0IOREMAP]   = 0x00000080;
 960     s->regs[GT_PCI0M0REMAP]   = 0x00000090;
 961     s->regs[GT_PCI0M1REMAP]   = 0x00000790;
 962     s->regs[GT_PCI1IOREMAP]   = 0x00000100;
 963     s->regs[GT_PCI1M0REMAP]   = 0x00000110;
 964     s->regs[GT_PCI1M1REMAP]   = 0x00000120;
 965
 966     /* CPU Error Report */
 967     s->regs[GT_CPUERR_ADDRLO] = 0x00000000;
 968     s->regs[GT_CPUERR_ADDRHI] = 0x00000000;
 969     s->regs[GT_CPUERR_DATALO] = 0xffffffff;
 970     s->regs[GT_CPUERR_DATAHI] = 0xffffffff;
 971     s->regs[GT_CPUERR_PARITY] = 0x000000ff;
 972
 973     /* CPU Sync Barrier */
 974     s->regs[GT_PCI0SYNC]      = 0x00000000;
 975     s->regs[GT_PCI1SYNC]      = 0x00000000;
 976
 977     /* SDRAM and Device Address Decode */
 978     s->regs[GT_SCS0LD]        = 0x00000000;
 979     s->regs[GT_SCS0HD]        = 0x00000007;
 980     s->regs[GT_SCS1LD]        = 0x00000008;
 981     s->regs[GT_SCS1HD]        = 0x0000000f;
 982     s->regs[GT_SCS2LD]        = 0x00000010;
 983     s->regs[GT_SCS2HD]        = 0x00000017;
 984     s->regs[GT_SCS3LD]        = 0x00000018;
 985     s->regs[GT_SCS3HD]        = 0x0000001f;
 986     s->regs[GT_CS0LD]         = 0x000000c0;
 987     s->regs[GT_CS0HD]         = 0x000000c7;
 988     s->regs[GT_CS1LD]         = 0x000000c8;
 989     s->regs[GT_CS1HD]         = 0x000000cf;
 990     s->regs[GT_CS2LD]         = 0x000000d0;
 991     s->regs[GT_CS2HD]         = 0x000000df;
 992     s->regs[GT_CS3LD]         = 0x000000f0;
 993     s->regs[GT_CS3HD]         = 0x000000fb;
 994     s->regs[GT_BOOTLD]        = 0x000000fc;
 995     s->regs[GT_BOOTHD]        = 0x000000ff;
 996     s->regs[GT_ADERR]         = 0xffffffff;
 997
 998     /* SDRAM Configuration */
 999     s->regs[GT_SDRAM_CFG]     = 0x00000200;
1000     s->regs[GT_SDRAM_OPMODE]  = 0x00000000;
1001     s->regs[GT_SDRAM_BM]      = 0x00000007;
1002     s->regs[GT_SDRAM_ADDRDECODE] = 0x00000002;
1003
1004     /* SDRAM Parameters */
1005     s->regs[GT_SDRAM_B0]      = 0x00000005;
1006     s->regs[GT_SDRAM_B1]      = 0x00000005;
1007     s->regs[GT_SDRAM_B2]      = 0x00000005;
1008     s->regs[GT_SDRAM_B3]      = 0x00000005;
1009
1010     /* ECC */
1011     s->regs[GT_ECC_ERRDATALO] = 0x00000000;
1012     s->regs[GT_ECC_ERRDATAHI] = 0x00000000;
1013     s->regs[GT_ECC_MEM]       = 0x00000000;
1014     s->regs[GT_ECC_CALC]      = 0x00000000;
1015     s->regs[GT_ECC_ERRADDR]   = 0x00000000;
1016
1017     /* Device Parameters */
1018     s->regs[GT_DEV_B0]        = 0x386fffff;
1019     s->regs[GT_DEV_B1]        = 0x386fffff;
1020     s->regs[GT_DEV_B2]        = 0x386fffff;
1021     s->regs[GT_DEV_B3]        = 0x386fffff;
1022     s->regs[GT_DEV_BOOT]      = 0x146fffff;
1023
1024     /* DMA registers are all zeroed at reset */
1025
1026     /* Timer/Counter */
1027     s->regs[GT_TC0]           = 0xffffffff;
1028     s->regs[GT_TC1]           = 0x00ffffff;
1029     s->regs[GT_TC2]           = 0x00ffffff;
1030     s->regs[GT_TC3]           = 0x00ffffff;
1031     s->regs[GT_TC_CONTROL]    = 0x00000000;
1032
1033     /* PCI Internal */
1034 #ifdef TARGET_WORDS_BIGENDIAN
1035     s->regs[GT_PCI0_CMD]      = 0x00000000;
1036 #else
1037     s->regs[GT_PCI0_CMD]      = 0x00010001;
1038 #endif
1039     s->regs[GT_PCI0_TOR]      = 0x0000070f;
1040     s->regs[GT_PCI0_BS_SCS10] = 0x00fff000;
1041     s->regs[GT_PCI0_BS_SCS32] = 0x00fff000;
1042     s->regs[GT_PCI0_BS_CS20]  = 0x01fff000;
1043     s->regs[GT_PCI0_BS_CS3BT] = 0x00fff000;
1044     s->regs[GT_PCI1_IACK]     = 0x00000000;
1045     s->regs[GT_PCI0_IACK]     = 0x00000000;
1046     s->regs[GT_PCI0_BARE]     = 0x0000000f;
1047     s->regs[GT_PCI0_PREFMBR]  = 0x00000040;
1048     s->regs[GT_PCI0_SCS10_BAR] = 0x00000000;
1049     s->regs[GT_PCI0_SCS32_BAR] = 0x01000000;
1050     s->regs[GT_PCI0_CS20_BAR] = 0x1c000000;
1051     s->regs[GT_PCI0_CS3BT_BAR] = 0x1f000000;
1052     s->regs[GT_PCI0_SSCS10_BAR] = 0x00000000;
1053     s->regs[GT_PCI0_SSCS32_BAR] = 0x01000000;
1054     s->regs[GT_PCI0_SCS3BT_BAR] = 0x1f000000;
1055 #ifdef TARGET_WORDS_BIGENDIAN
1056     s->regs[GT_PCI1_CMD]      = 0x00000000;
1057 #else
1058     s->regs[GT_PCI1_CMD]      = 0x00010001;
1059 #endif
1060     s->regs[GT_PCI1_TOR]      = 0x0000070f;
1061     s->regs[GT_PCI1_BS_SCS10] = 0x00fff000;
1062     s->regs[GT_PCI1_BS_SCS32] = 0x00fff000;
1063     s->regs[GT_PCI1_BS_CS20]  = 0x01fff000;
1064     s->regs[GT_PCI1_BS_CS3BT] = 0x00fff000;
1065     s->regs[GT_PCI1_BARE]     = 0x0000000f;
1066     s->regs[GT_PCI1_PREFMBR]  = 0x00000040;
1067     s->regs[GT_PCI1_SCS10_BAR] = 0x00000000;
1068     s->regs[GT_PCI1_SCS32_BAR] = 0x01000000;
1069     s->regs[GT_PCI1_CS20_BAR] = 0x1c000000;
1070     s->regs[GT_PCI1_CS3BT_BAR] = 0x1f000000;
1071     s->regs[GT_PCI1_SSCS10_BAR] = 0x00000000;
1072     s->regs[GT_PCI1_SSCS32_BAR] = 0x01000000;
1073     s->regs[GT_PCI1_SCS3BT_BAR] = 0x1f000000;
1074     s->regs[GT_PCI1_CFGADDR]  = 0x00000000;
1075     s->regs[GT_PCI1_CFGDATA]  = 0x00000000;
1076     s->regs[GT_PCI0_CFGADDR]  = 0x00000000;
1077
1078     /* Interrupt registers are all zeroed at reset */
1079
1080     gt64120_isd_mapping(s);
1081     gt64120_pci_mapping(s);
1082 }
1083
1084 PCIBus *gt64120_register(qemu_irq *pic)
1085 {
1086     SysBusDevice *s;
1087     GT64120State *d;
1088     DeviceState *dev;
1089
1090     dev = qdev_create(NULL, "gt64120");
1091     qdev_init_nofail(dev);
1092     s = sysbus_from_qdev(dev);
1093     d = FROM_SYSBUS(GT64120State, s);
1094     d->pci.bus = pci_register_bus(&d->busdev.qdev, "pci",
1095                                   gt64120_pci_set_irq, gt64120_pci_map_irq,
1096                                   pic,
1097                                   get_system_memory(),
1098                                   get_system_io(),
1099                                   PCI_DEVFN(18, 0), 4);
1100     memory_region_init_io(&d->ISD_mem, &isd_mem_ops, d, "isd-mem", 0x1000);
1101
1102     pci_create_simple(d->pci.bus, PCI_DEVFN(0, 0), "gt64120_pci");
1103     return d->pci.bus;
1104 }
1105
1106 static int gt64120_init(SysBusDevice *dev)
1107 {
1108     GT64120State *s;
1109
1110     s = FROM_SYSBUS(GT64120State, dev);
1111
1112     /* FIXME: This value is computed from registers during reset, but some
1113        devices (e.g. VGA card) need to know it when they are registered.
1114        This also mean that changing the register to change the mapping
1115        does not fully work. */
1116     isa_mem_base = 0x10000000;
1117     qemu_register_reset(gt64120_reset, s);
1118     return 0;
1119 }
1120
1121 static int gt64120_pci_init(PCIDevice *d)
1122 {
1123     /* FIXME: Malta specific hw assumptions ahead */
1124     pci_set_word(d->config + PCI_COMMAND, 0);
1125     pci_set_word(d->config + PCI_STATUS,
1126                  PCI_STATUS_FAST_BACK | PCI_STATUS_DEVSEL_MEDIUM);
1127     pci_config_set_prog_interface(d->config, 0);
1128     pci_set_long(d->config + PCI_BASE_ADDRESS_0, 0x00000008);
1129     pci_set_long(d->config + PCI_BASE_ADDRESS_1, 0x01000008);
1130     pci_set_long(d->config + PCI_BASE_ADDRESS_2, 0x1c000000);
1131     pci_set_long(d->config + PCI_BASE_ADDRESS_3, 0x1f000000);
1132     pci_set_long(d->config + PCI_BASE_ADDRESS_4, 0x14000000);
1133     pci_set_long(d->config + PCI_BASE_ADDRESS_5, 0x14000001);
1134     pci_set_byte(d->config + 0x3d, 0x01);
1135
1136     return 0;
1137 }
1138
1139 static PCIDeviceInfo gt64120_pci_info = {
1140     .qdev.name = "gt64120_pci",
1141     .qdev.size = sizeof(PCIDevice),
1142     .init      = gt64120_pci_init,
1143     .vendor_id = PCI_VENDOR_ID_MARVELL,
1144     .device_id = PCI_DEVICE_ID_MARVELL_GT6412X,
1145     .revision  = 0x10,
1146     .class_id  = PCI_CLASS_BRIDGE_HOST,
1147 };
1148
1149 static void gt64120_pci_register_devices(void)
1150 {
1151     sysbus_register_dev("gt64120", sizeof(GT64120State),
1152                         gt64120_init);
1153     pci_qdev_register(&gt64120_pci_info);
1154 }
1155
1156 device_init(gt64120_pci_register_devices)