1 /* 2 * QEMU GT64120 PCI host 3 * 4 * (Datasheet GT-64120 Rev 1.4 from Sep 14, 1999) 5 * 6 * Copyright (c) 2006,2007 Aurelien Jarno 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 27 #include "qemu/osdep.h" 28 #include "qapi/error.h" 29 #include "qemu/units.h" 30 #include "qemu/log.h" 31 #include "hw/qdev-properties.h" 32 #include "hw/registerfields.h" 33 #include "hw/pci/pci_device.h" 34 #include "hw/pci/pci_host.h" 35 #include "hw/misc/empty_slot.h" 36 #include "migration/vmstate.h" 37 #include "hw/intc/i8259.h" 38 #include "hw/irq.h" 39 #include "trace.h" 40 #include "qom/object.h" 41 42 #define GT_REGS (0x1000 >> 2) 43 44 /* CPU Configuration */ 45 #define GT_CPU (0x000 >> 2) 46 #define GT_MULTI (0x120 >> 2) 47 48 REG32(GT_CPU, 0x000) 49 FIELD(GT_CPU, Endianness, 12, 1) 50 51 /* CPU Address Decode */ 52 #define GT_SCS10LD (0x008 >> 2) 53 #define GT_SCS10HD (0x010 >> 2) 54 #define GT_SCS32LD (0x018 >> 2) 55 #define GT_SCS32HD (0x020 >> 2) 56 #define GT_CS20LD (0x028 >> 2) 57 #define GT_CS20HD (0x030 >> 2) 58 #define GT_CS3BOOTLD (0x038 >> 2) 59 #define GT_CS3BOOTHD (0x040 >> 2) 60 #define GT_PCI0IOLD (0x048 >> 2) 61 #define GT_PCI0IOHD (0x050 >> 2) 62 #define GT_PCI0M0LD (0x058 >> 2) 63 #define GT_PCI0M0HD (0x060 >> 2) 64 #define GT_PCI0M1LD (0x080 >> 2) 65 #define GT_PCI0M1HD (0x088 >> 2) 66 #define GT_PCI1IOLD (0x090 >> 2) 67 #define GT_PCI1IOHD (0x098 >> 2) 68 #define GT_PCI1M0LD (0x0a0 >> 2) 69 #define GT_PCI1M0HD (0x0a8 >> 2) 70 #define GT_PCI1M1LD (0x0b0 >> 2) 71 #define GT_PCI1M1HD (0x0b8 >> 2) 72 #define GT_ISD (0x068 >> 2) 73 74 #define GT_SCS10AR (0x0d0 >> 2) 75 #define GT_SCS32AR (0x0d8 >> 2) 76 #define GT_CS20R (0x0e0 >> 2) 77 #define GT_CS3BOOTR (0x0e8 >> 2) 78 79 #define GT_PCI0IOREMAP (0x0f0 >> 2) 80 #define GT_PCI0M0REMAP (0x0f8 >> 2) 81 #define GT_PCI0M1REMAP (0x100 >> 2) 82 #define GT_PCI1IOREMAP (0x108 >> 2) 83 #define GT_PCI1M0REMAP (0x110 >> 2) 84 #define GT_PCI1M1REMAP (0x118 >> 2) 85 86 /* CPU Error Report */ 87 #define GT_CPUERR_ADDRLO (0x070 >> 2) 88 #define GT_CPUERR_ADDRHI (0x078 >> 2) 89 #define GT_CPUERR_DATALO (0x128 >> 2) /* GT-64120A only */ 90 #define GT_CPUERR_DATAHI (0x130 >> 2) /* GT-64120A only */ 91 #define GT_CPUERR_PARITY (0x138 >> 2) /* GT-64120A only */ 92 93 /* CPU Sync Barrier */ 94 #define GT_PCI0SYNC (0x0c0 >> 2) 95 #define GT_PCI1SYNC (0x0c8 >> 2) 96 97 /* SDRAM and Device Address Decode */ 98 #define GT_SCS0LD (0x400 >> 2) 99 #define GT_SCS0HD (0x404 >> 2) 100 #define GT_SCS1LD (0x408 >> 2) 101 #define GT_SCS1HD (0x40c >> 2) 102 #define GT_SCS2LD (0x410 >> 2) 103 #define GT_SCS2HD (0x414 >> 2) 104 #define GT_SCS3LD (0x418 >> 2) 105 #define GT_SCS3HD (0x41c >> 2) 106 #define GT_CS0LD (0x420 >> 2) 107 #define GT_CS0HD (0x424 >> 2) 108 #define GT_CS1LD (0x428 >> 2) 109 #define GT_CS1HD (0x42c >> 2) 110 #define GT_CS2LD (0x430 >> 2) 111 #define GT_CS2HD (0x434 >> 2) 112 #define GT_CS3LD (0x438 >> 2) 113 #define GT_CS3HD (0x43c >> 2) 114 #define GT_BOOTLD (0x440 >> 2) 115 #define GT_BOOTHD (0x444 >> 2) 116 #define GT_ADERR (0x470 >> 2) 117 118 /* SDRAM Configuration */ 119 #define GT_SDRAM_CFG (0x448 >> 2) 120 #define GT_SDRAM_OPMODE (0x474 >> 2) 121 #define GT_SDRAM_BM (0x478 >> 2) 122 #define GT_SDRAM_ADDRDECODE (0x47c >> 2) 123 124 /* SDRAM Parameters */ 125 #define GT_SDRAM_B0 (0x44c >> 2) 126 #define GT_SDRAM_B1 (0x450 >> 2) 127 #define GT_SDRAM_B2 (0x454 >> 2) 128 #define GT_SDRAM_B3 (0x458 >> 2) 129 130 /* Device Parameters */ 131 #define GT_DEV_B0 (0x45c >> 2) 132 #define GT_DEV_B1 (0x460 >> 2) 133 #define GT_DEV_B2 (0x464 >> 2) 134 #define GT_DEV_B3 (0x468 >> 2) 135 #define GT_DEV_BOOT (0x46c >> 2) 136 137 /* ECC */ 138 #define GT_ECC_ERRDATALO (0x480 >> 2) /* GT-64120A only */ 139 #define GT_ECC_ERRDATAHI (0x484 >> 2) /* GT-64120A only */ 140 #define GT_ECC_MEM (0x488 >> 2) /* GT-64120A only */ 141 #define GT_ECC_CALC (0x48c >> 2) /* GT-64120A only */ 142 #define GT_ECC_ERRADDR (0x490 >> 2) /* GT-64120A only */ 143 144 /* DMA Record */ 145 #define GT_DMA0_CNT (0x800 >> 2) 146 #define GT_DMA1_CNT (0x804 >> 2) 147 #define GT_DMA2_CNT (0x808 >> 2) 148 #define GT_DMA3_CNT (0x80c >> 2) 149 #define GT_DMA0_SA (0x810 >> 2) 150 #define GT_DMA1_SA (0x814 >> 2) 151 #define GT_DMA2_SA (0x818 >> 2) 152 #define GT_DMA3_SA (0x81c >> 2) 153 #define GT_DMA0_DA (0x820 >> 2) 154 #define GT_DMA1_DA (0x824 >> 2) 155 #define GT_DMA2_DA (0x828 >> 2) 156 #define GT_DMA3_DA (0x82c >> 2) 157 #define GT_DMA0_NEXT (0x830 >> 2) 158 #define GT_DMA1_NEXT (0x834 >> 2) 159 #define GT_DMA2_NEXT (0x838 >> 2) 160 #define GT_DMA3_NEXT (0x83c >> 2) 161 #define GT_DMA0_CUR (0x870 >> 2) 162 #define GT_DMA1_CUR (0x874 >> 2) 163 #define GT_DMA2_CUR (0x878 >> 2) 164 #define GT_DMA3_CUR (0x87c >> 2) 165 166 /* DMA Channel Control */ 167 #define GT_DMA0_CTRL (0x840 >> 2) 168 #define GT_DMA1_CTRL (0x844 >> 2) 169 #define GT_DMA2_CTRL (0x848 >> 2) 170 #define GT_DMA3_CTRL (0x84c >> 2) 171 172 /* DMA Arbiter */ 173 #define GT_DMA_ARB (0x860 >> 2) 174 175 /* Timer/Counter */ 176 #define GT_TC0 (0x850 >> 2) 177 #define GT_TC1 (0x854 >> 2) 178 #define GT_TC2 (0x858 >> 2) 179 #define GT_TC3 (0x85c >> 2) 180 #define GT_TC_CONTROL (0x864 >> 2) 181 182 /* PCI Internal */ 183 #define GT_PCI0_CMD (0xc00 >> 2) 184 #define GT_PCI0_TOR (0xc04 >> 2) 185 #define GT_PCI0_BS_SCS10 (0xc08 >> 2) 186 #define GT_PCI0_BS_SCS32 (0xc0c >> 2) 187 #define GT_PCI0_BS_CS20 (0xc10 >> 2) 188 #define GT_PCI0_BS_CS3BT (0xc14 >> 2) 189 #define GT_PCI1_IACK (0xc30 >> 2) 190 #define GT_PCI0_IACK (0xc34 >> 2) 191 #define GT_PCI0_BARE (0xc3c >> 2) 192 #define GT_PCI0_PREFMBR (0xc40 >> 2) 193 #define GT_PCI0_SCS10_BAR (0xc48 >> 2) 194 #define GT_PCI0_SCS32_BAR (0xc4c >> 2) 195 #define GT_PCI0_CS20_BAR (0xc50 >> 2) 196 #define GT_PCI0_CS3BT_BAR (0xc54 >> 2) 197 #define GT_PCI0_SSCS10_BAR (0xc58 >> 2) 198 #define GT_PCI0_SSCS32_BAR (0xc5c >> 2) 199 #define GT_PCI0_SCS3BT_BAR (0xc64 >> 2) 200 #define GT_PCI1_CMD (0xc80 >> 2) 201 #define GT_PCI1_TOR (0xc84 >> 2) 202 #define GT_PCI1_BS_SCS10 (0xc88 >> 2) 203 #define GT_PCI1_BS_SCS32 (0xc8c >> 2) 204 #define GT_PCI1_BS_CS20 (0xc90 >> 2) 205 #define GT_PCI1_BS_CS3BT (0xc94 >> 2) 206 #define GT_PCI1_BARE (0xcbc >> 2) 207 #define GT_PCI1_PREFMBR (0xcc0 >> 2) 208 #define GT_PCI1_SCS10_BAR (0xcc8 >> 2) 209 #define GT_PCI1_SCS32_BAR (0xccc >> 2) 210 #define GT_PCI1_CS20_BAR (0xcd0 >> 2) 211 #define GT_PCI1_CS3BT_BAR (0xcd4 >> 2) 212 #define GT_PCI1_SSCS10_BAR (0xcd8 >> 2) 213 #define GT_PCI1_SSCS32_BAR (0xcdc >> 2) 214 #define GT_PCI1_SCS3BT_BAR (0xce4 >> 2) 215 #define GT_PCI1_CFGADDR (0xcf0 >> 2) 216 #define GT_PCI1_CFGDATA (0xcf4 >> 2) 217 #define GT_PCI0_CFGADDR (0xcf8 >> 2) 218 #define GT_PCI0_CFGDATA (0xcfc >> 2) 219 220 REG32(GT_PCI0_CMD, 0xc00) 221 FIELD(GT_PCI0_CMD, MByteSwap, 0, 1) 222 FIELD(GT_PCI0_CMD, SByteSwap, 16, 1) 223 #define R_GT_PCI0_CMD_ByteSwap_MASK \ 224 (R_GT_PCI0_CMD_MByteSwap_MASK | R_GT_PCI0_CMD_SByteSwap_MASK) 225 REG32(GT_PCI1_CMD, 0xc80) 226 FIELD(GT_PCI1_CMD, MByteSwap, 0, 1) 227 FIELD(GT_PCI1_CMD, SByteSwap, 16, 1) 228 #define R_GT_PCI1_CMD_ByteSwap_MASK \ 229 (R_GT_PCI1_CMD_MByteSwap_MASK | R_GT_PCI1_CMD_SByteSwap_MASK) 230 231 /* Interrupts */ 232 #define GT_INTRCAUSE (0xc18 >> 2) 233 #define GT_INTRMASK (0xc1c >> 2) 234 #define GT_PCI0_ICMASK (0xc24 >> 2) 235 #define GT_PCI0_SERR0MASK (0xc28 >> 2) 236 #define GT_CPU_INTSEL (0xc70 >> 2) 237 #define GT_PCI0_INTSEL (0xc74 >> 2) 238 #define GT_HINTRCAUSE (0xc98 >> 2) 239 #define GT_HINTRMASK (0xc9c >> 2) 240 #define GT_PCI0_HICMASK (0xca4 >> 2) 241 #define GT_PCI1_SERR1MASK (0xca8 >> 2) 242 243 #define PCI_MAPPING_ENTRY(regname) \ 244 hwaddr regname ##_start; \ 245 hwaddr regname ##_length; \ 246 MemoryRegion regname ##_mem 247 248 #define TYPE_GT64120_PCI_HOST_BRIDGE "gt64120" 249 250 OBJECT_DECLARE_SIMPLE_TYPE(GT64120State, GT64120_PCI_HOST_BRIDGE) 251 252 struct GT64120State { 253 PCIHostState parent_obj; 254 255 uint32_t regs[GT_REGS]; 256 PCI_MAPPING_ENTRY(PCI0IO); 257 PCI_MAPPING_ENTRY(PCI0M0); 258 PCI_MAPPING_ENTRY(PCI0M1); 259 PCI_MAPPING_ENTRY(ISD); 260 MemoryRegion pci0_mem; 261 AddressSpace pci0_mem_as; 262 263 /* properties */ 264 bool cpu_little_endian; 265 }; 266 267 /* Adjust range to avoid touching space which isn't mappable via PCI */ 268 /* 269 * XXX: Hardcoded values for Malta: 0x1e000000 - 0x1f100000 270 * 0x1fc00000 - 0x1fd00000 271 */ 272 static void check_reserved_space(hwaddr *start, hwaddr *length) 273 { 274 hwaddr begin = *start; 275 hwaddr end = *start + *length; 276 277 if (end >= 0x1e000000LL && end < 0x1f100000LL) { 278 end = 0x1e000000LL; 279 } 280 if (begin >= 0x1e000000LL && begin < 0x1f100000LL) { 281 begin = 0x1f100000LL; 282 } 283 if (end >= 0x1fc00000LL && end < 0x1fd00000LL) { 284 end = 0x1fc00000LL; 285 } 286 if (begin >= 0x1fc00000LL && begin < 0x1fd00000LL) { 287 begin = 0x1fd00000LL; 288 } 289 /* XXX: This is broken when a reserved range splits the requested range */ 290 if (end >= 0x1f100000LL && begin < 0x1e000000LL) { 291 end = 0x1e000000LL; 292 } 293 if (end >= 0x1fd00000LL && begin < 0x1fc00000LL) { 294 end = 0x1fc00000LL; 295 } 296 297 *start = begin; 298 *length = end - begin; 299 } 300 301 static void gt64120_isd_mapping(GT64120State *s) 302 { 303 /* Bits 14:0 of ISD map to bits 35:21 of the start address. */ 304 hwaddr start = ((hwaddr)s->regs[GT_ISD] << 21) & 0xFFFE00000ull; 305 hwaddr length = 0x1000; 306 307 memory_region_transaction_begin(); 308 309 if (s->ISD_length) { 310 memory_region_del_subregion(get_system_memory(), &s->ISD_mem); 311 } 312 check_reserved_space(&start, &length); 313 length = 0x1000; 314 /* Map new address */ 315 trace_gt64120_isd_remap(s->ISD_length, s->ISD_start, length, start); 316 s->ISD_start = start; 317 s->ISD_length = length; 318 memory_region_add_subregion(get_system_memory(), s->ISD_start, &s->ISD_mem); 319 320 memory_region_transaction_commit(); 321 } 322 323 static void gt64120_update_pci_cfgdata_mapping(GT64120State *s) 324 { 325 /* Indexed on MByteSwap bit, see Table 158: PCI_0 Command, Offset: 0xc00 */ 326 static const MemoryRegionOps *pci_host_data_ops[] = { 327 &pci_host_data_be_ops, &pci_host_data_le_ops 328 }; 329 PCIHostState *phb = PCI_HOST_BRIDGE(s); 330 331 memory_region_transaction_begin(); 332 333 /* 334 * The setting of the MByteSwap bit and MWordSwap bit in the PCI Internal 335 * Command Register determines how data transactions from the CPU to/from 336 * PCI are handled along with the setting of the Endianness bit in the CPU 337 * Configuration Register. See: 338 * - Table 16: 32-bit PCI Transaction Endianness 339 * - Table 158: PCI_0 Command, Offset: 0xc00 340 */ 341 342 if (memory_region_is_mapped(&phb->data_mem)) { 343 memory_region_del_subregion(&s->ISD_mem, &phb->data_mem); 344 object_unparent(OBJECT(&phb->data_mem)); 345 } 346 memory_region_init_io(&phb->data_mem, OBJECT(phb), 347 pci_host_data_ops[s->regs[GT_PCI0_CMD] & 1], 348 s, "pci-conf-data", 4); 349 memory_region_add_subregion_overlap(&s->ISD_mem, GT_PCI0_CFGDATA << 2, 350 &phb->data_mem, 1); 351 352 memory_region_transaction_commit(); 353 } 354 355 static void gt64120_pci_mapping(GT64120State *s) 356 { 357 memory_region_transaction_begin(); 358 359 /* Update PCI0IO mapping */ 360 if ((s->regs[GT_PCI0IOLD] & 0x7f) <= s->regs[GT_PCI0IOHD]) { 361 /* Unmap old IO address */ 362 if (s->PCI0IO_length) { 363 memory_region_del_subregion(get_system_memory(), &s->PCI0IO_mem); 364 object_unparent(OBJECT(&s->PCI0IO_mem)); 365 } 366 /* Map new IO address */ 367 s->PCI0IO_start = s->regs[GT_PCI0IOLD] << 21; 368 s->PCI0IO_length = ((s->regs[GT_PCI0IOHD] + 1) - 369 (s->regs[GT_PCI0IOLD] & 0x7f)) << 21; 370 if (s->PCI0IO_length) { 371 memory_region_init_alias(&s->PCI0IO_mem, OBJECT(s), "pci0-io", 372 get_system_io(), 0, s->PCI0IO_length); 373 memory_region_add_subregion(get_system_memory(), s->PCI0IO_start, 374 &s->PCI0IO_mem); 375 } 376 } 377 378 /* Update PCI0M0 mapping */ 379 if ((s->regs[GT_PCI0M0LD] & 0x7f) <= s->regs[GT_PCI0M0HD]) { 380 /* Unmap old MEM address */ 381 if (s->PCI0M0_length) { 382 memory_region_del_subregion(get_system_memory(), &s->PCI0M0_mem); 383 object_unparent(OBJECT(&s->PCI0M0_mem)); 384 } 385 /* Map new mem address */ 386 s->PCI0M0_start = s->regs[GT_PCI0M0LD] << 21; 387 s->PCI0M0_length = ((s->regs[GT_PCI0M0HD] + 1) - 388 (s->regs[GT_PCI0M0LD] & 0x7f)) << 21; 389 if (s->PCI0M0_length) { 390 memory_region_init_alias(&s->PCI0M0_mem, OBJECT(s), "pci0-mem0", 391 &s->pci0_mem, s->PCI0M0_start, 392 s->PCI0M0_length); 393 memory_region_add_subregion(get_system_memory(), s->PCI0M0_start, 394 &s->PCI0M0_mem); 395 } 396 } 397 398 /* Update PCI0M1 mapping */ 399 if ((s->regs[GT_PCI0M1LD] & 0x7f) <= s->regs[GT_PCI0M1HD]) { 400 /* Unmap old MEM address */ 401 if (s->PCI0M1_length) { 402 memory_region_del_subregion(get_system_memory(), &s->PCI0M1_mem); 403 object_unparent(OBJECT(&s->PCI0M1_mem)); 404 } 405 /* Map new mem address */ 406 s->PCI0M1_start = s->regs[GT_PCI0M1LD] << 21; 407 s->PCI0M1_length = ((s->regs[GT_PCI0M1HD] + 1) - 408 (s->regs[GT_PCI0M1LD] & 0x7f)) << 21; 409 if (s->PCI0M1_length) { 410 memory_region_init_alias(&s->PCI0M1_mem, OBJECT(s), "pci0-mem1", 411 &s->pci0_mem, s->PCI0M1_start, 412 s->PCI0M1_length); 413 memory_region_add_subregion(get_system_memory(), s->PCI0M1_start, 414 &s->PCI0M1_mem); 415 } 416 } 417 418 memory_region_transaction_commit(); 419 } 420 421 static int gt64120_post_load(void *opaque, int version_id) 422 { 423 GT64120State *s = opaque; 424 425 gt64120_isd_mapping(s); 426 gt64120_pci_mapping(s); 427 428 return 0; 429 } 430 431 static const VMStateDescription vmstate_gt64120 = { 432 .name = "gt64120", 433 .version_id = 1, 434 .minimum_version_id = 1, 435 .post_load = gt64120_post_load, 436 .fields = (const VMStateField[]) { 437 VMSTATE_UINT32_ARRAY(regs, GT64120State, GT_REGS), 438 VMSTATE_END_OF_LIST() 439 } 440 }; 441 442 static void gt64120_writel(void *opaque, hwaddr addr, 443 uint64_t val, unsigned size) 444 { 445 GT64120State *s = opaque; 446 uint32_t saddr = addr >> 2; 447 448 trace_gt64120_write(addr, val); 449 if (!(s->regs[GT_CPU] & 0x00001000)) { 450 val = bswap32(val); 451 } 452 453 switch (saddr) { 454 455 /* CPU Configuration */ 456 case GT_CPU: 457 s->regs[GT_CPU] = val; 458 break; 459 case GT_MULTI: 460 /* Read-only register as only one GT64xxx is present on the CPU bus */ 461 break; 462 463 /* CPU Address Decode */ 464 case GT_PCI0IOLD: 465 s->regs[GT_PCI0IOLD] = val & 0x00007fff; 466 s->regs[GT_PCI0IOREMAP] = val & 0x000007ff; 467 gt64120_pci_mapping(s); 468 break; 469 case GT_PCI0M0LD: 470 s->regs[GT_PCI0M0LD] = val & 0x00007fff; 471 s->regs[GT_PCI0M0REMAP] = val & 0x000007ff; 472 gt64120_pci_mapping(s); 473 break; 474 case GT_PCI0M1LD: 475 s->regs[GT_PCI0M1LD] = val & 0x00007fff; 476 s->regs[GT_PCI0M1REMAP] = val & 0x000007ff; 477 gt64120_pci_mapping(s); 478 break; 479 case GT_PCI1IOLD: 480 s->regs[GT_PCI1IOLD] = val & 0x00007fff; 481 s->regs[GT_PCI1IOREMAP] = val & 0x000007ff; 482 break; 483 case GT_PCI1M0LD: 484 s->regs[GT_PCI1M0LD] = val & 0x00007fff; 485 s->regs[GT_PCI1M0REMAP] = val & 0x000007ff; 486 break; 487 case GT_PCI1M1LD: 488 s->regs[GT_PCI1M1LD] = val & 0x00007fff; 489 s->regs[GT_PCI1M1REMAP] = val & 0x000007ff; 490 break; 491 case GT_PCI0M0HD: 492 case GT_PCI0M1HD: 493 case GT_PCI0IOHD: 494 s->regs[saddr] = val & 0x0000007f; 495 gt64120_pci_mapping(s); 496 break; 497 case GT_PCI1IOHD: 498 case GT_PCI1M0HD: 499 case GT_PCI1M1HD: 500 s->regs[saddr] = val & 0x0000007f; 501 break; 502 case GT_ISD: 503 s->regs[saddr] = val & 0x00007fff; 504 gt64120_isd_mapping(s); 505 break; 506 507 case GT_PCI0IOREMAP: 508 case GT_PCI0M0REMAP: 509 case GT_PCI0M1REMAP: 510 case GT_PCI1IOREMAP: 511 case GT_PCI1M0REMAP: 512 case GT_PCI1M1REMAP: 513 s->regs[saddr] = val & 0x000007ff; 514 break; 515 516 /* CPU Error Report */ 517 case GT_CPUERR_ADDRLO: 518 case GT_CPUERR_ADDRHI: 519 case GT_CPUERR_DATALO: 520 case GT_CPUERR_DATAHI: 521 case GT_CPUERR_PARITY: 522 /* Read-only registers, do nothing */ 523 qemu_log_mask(LOG_GUEST_ERROR, 524 "gt64120: Read-only register write " 525 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 526 saddr << 2, size, size << 1, val); 527 break; 528 529 /* CPU Sync Barrier */ 530 case GT_PCI0SYNC: 531 case GT_PCI1SYNC: 532 /* Read-only registers, do nothing */ 533 qemu_log_mask(LOG_GUEST_ERROR, 534 "gt64120: Read-only register write " 535 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 536 saddr << 2, size, size << 1, val); 537 break; 538 539 /* SDRAM and Device Address Decode */ 540 case GT_SCS0LD: 541 case GT_SCS0HD: 542 case GT_SCS1LD: 543 case GT_SCS1HD: 544 case GT_SCS2LD: 545 case GT_SCS2HD: 546 case GT_SCS3LD: 547 case GT_SCS3HD: 548 case GT_CS0LD: 549 case GT_CS0HD: 550 case GT_CS1LD: 551 case GT_CS1HD: 552 case GT_CS2LD: 553 case GT_CS2HD: 554 case GT_CS3LD: 555 case GT_CS3HD: 556 case GT_BOOTLD: 557 case GT_BOOTHD: 558 case GT_ADERR: 559 /* SDRAM Configuration */ 560 case GT_SDRAM_CFG: 561 case GT_SDRAM_OPMODE: 562 case GT_SDRAM_BM: 563 case GT_SDRAM_ADDRDECODE: 564 /* Accept and ignore SDRAM interleave configuration */ 565 s->regs[saddr] = val; 566 break; 567 568 /* Device Parameters */ 569 case GT_DEV_B0: 570 case GT_DEV_B1: 571 case GT_DEV_B2: 572 case GT_DEV_B3: 573 case GT_DEV_BOOT: 574 /* Not implemented */ 575 qemu_log_mask(LOG_UNIMP, 576 "gt64120: Unimplemented device register write " 577 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 578 saddr << 2, size, size << 1, val); 579 break; 580 581 /* ECC */ 582 case GT_ECC_ERRDATALO: 583 case GT_ECC_ERRDATAHI: 584 case GT_ECC_MEM: 585 case GT_ECC_CALC: 586 case GT_ECC_ERRADDR: 587 /* Read-only registers, do nothing */ 588 qemu_log_mask(LOG_GUEST_ERROR, 589 "gt64120: Read-only register write " 590 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 591 saddr << 2, size, size << 1, val); 592 break; 593 594 /* DMA Record */ 595 case GT_DMA0_CNT: 596 case GT_DMA1_CNT: 597 case GT_DMA2_CNT: 598 case GT_DMA3_CNT: 599 case GT_DMA0_SA: 600 case GT_DMA1_SA: 601 case GT_DMA2_SA: 602 case GT_DMA3_SA: 603 case GT_DMA0_DA: 604 case GT_DMA1_DA: 605 case GT_DMA2_DA: 606 case GT_DMA3_DA: 607 case GT_DMA0_NEXT: 608 case GT_DMA1_NEXT: 609 case GT_DMA2_NEXT: 610 case GT_DMA3_NEXT: 611 case GT_DMA0_CUR: 612 case GT_DMA1_CUR: 613 case GT_DMA2_CUR: 614 case GT_DMA3_CUR: 615 616 /* DMA Channel Control */ 617 case GT_DMA0_CTRL: 618 case GT_DMA1_CTRL: 619 case GT_DMA2_CTRL: 620 case GT_DMA3_CTRL: 621 622 /* DMA Arbiter */ 623 case GT_DMA_ARB: 624 /* Not implemented */ 625 qemu_log_mask(LOG_UNIMP, 626 "gt64120: Unimplemented DMA register write " 627 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 628 saddr << 2, size, size << 1, val); 629 break; 630 631 /* Timer/Counter */ 632 case GT_TC0: 633 case GT_TC1: 634 case GT_TC2: 635 case GT_TC3: 636 case GT_TC_CONTROL: 637 /* Not implemented */ 638 qemu_log_mask(LOG_UNIMP, 639 "gt64120: Unimplemented timer register write " 640 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 641 saddr << 2, size, size << 1, val); 642 break; 643 644 /* PCI Internal */ 645 case GT_PCI0_CMD: 646 case GT_PCI1_CMD: 647 s->regs[saddr] = val & 0x0401fc0f; 648 gt64120_update_pci_cfgdata_mapping(s); 649 break; 650 case GT_PCI0_TOR: 651 case GT_PCI0_BS_SCS10: 652 case GT_PCI0_BS_SCS32: 653 case GT_PCI0_BS_CS20: 654 case GT_PCI0_BS_CS3BT: 655 case GT_PCI1_IACK: 656 case GT_PCI0_IACK: 657 case GT_PCI0_BARE: 658 case GT_PCI0_PREFMBR: 659 case GT_PCI0_SCS10_BAR: 660 case GT_PCI0_SCS32_BAR: 661 case GT_PCI0_CS20_BAR: 662 case GT_PCI0_CS3BT_BAR: 663 case GT_PCI0_SSCS10_BAR: 664 case GT_PCI0_SSCS32_BAR: 665 case GT_PCI0_SCS3BT_BAR: 666 case GT_PCI1_TOR: 667 case GT_PCI1_BS_SCS10: 668 case GT_PCI1_BS_SCS32: 669 case GT_PCI1_BS_CS20: 670 case GT_PCI1_BS_CS3BT: 671 case GT_PCI1_BARE: 672 case GT_PCI1_PREFMBR: 673 case GT_PCI1_SCS10_BAR: 674 case GT_PCI1_SCS32_BAR: 675 case GT_PCI1_CS20_BAR: 676 case GT_PCI1_CS3BT_BAR: 677 case GT_PCI1_SSCS10_BAR: 678 case GT_PCI1_SSCS32_BAR: 679 case GT_PCI1_SCS3BT_BAR: 680 case GT_PCI1_CFGADDR: 681 case GT_PCI1_CFGDATA: 682 /* not implemented */ 683 qemu_log_mask(LOG_UNIMP, 684 "gt64120: Unimplemented PCI register write " 685 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 686 saddr << 2, size, size << 1, val); 687 break; 688 case GT_PCI0_CFGADDR: 689 case GT_PCI0_CFGDATA: 690 /* Mapped via in gt64120_pci_mapping() */ 691 g_assert_not_reached(); 692 break; 693 694 /* Interrupts */ 695 case GT_INTRCAUSE: 696 /* not really implemented */ 697 s->regs[saddr] = ~(~(s->regs[saddr]) | ~(val & 0xfffffffe)); 698 s->regs[saddr] |= !!(s->regs[saddr] & 0xfffffffe); 699 trace_gt64120_write_intreg("INTRCAUSE", size, val); 700 break; 701 case GT_INTRMASK: 702 s->regs[saddr] = val & 0x3c3ffffe; 703 trace_gt64120_write_intreg("INTRMASK", size, val); 704 break; 705 case GT_PCI0_ICMASK: 706 s->regs[saddr] = val & 0x03fffffe; 707 trace_gt64120_write_intreg("ICMASK", size, val); 708 break; 709 case GT_PCI0_SERR0MASK: 710 s->regs[saddr] = val & 0x0000003f; 711 trace_gt64120_write_intreg("SERR0MASK", size, val); 712 break; 713 714 /* Reserved when only PCI_0 is configured. */ 715 case GT_HINTRCAUSE: 716 case GT_CPU_INTSEL: 717 case GT_PCI0_INTSEL: 718 case GT_HINTRMASK: 719 case GT_PCI0_HICMASK: 720 case GT_PCI1_SERR1MASK: 721 /* not implemented */ 722 break; 723 724 /* SDRAM Parameters */ 725 case GT_SDRAM_B0: 726 case GT_SDRAM_B1: 727 case GT_SDRAM_B2: 728 case GT_SDRAM_B3: 729 /* 730 * We don't simulate electrical parameters of the SDRAM. 731 * Accept, but ignore the values. 732 */ 733 s->regs[saddr] = val; 734 break; 735 736 default: 737 qemu_log_mask(LOG_GUEST_ERROR, 738 "gt64120: Illegal register write " 739 "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", 740 saddr << 2, size, size << 1, val); 741 break; 742 } 743 } 744 745 static uint64_t gt64120_readl(void *opaque, 746 hwaddr addr, unsigned size) 747 { 748 GT64120State *s = opaque; 749 uint32_t val; 750 uint32_t saddr = addr >> 2; 751 752 switch (saddr) { 753 754 /* CPU Configuration */ 755 case GT_MULTI: 756 /* 757 * Only one GT64xxx is present on the CPU bus, return 758 * the initial value. 759 */ 760 val = s->regs[saddr]; 761 break; 762 763 /* CPU Error Report */ 764 case GT_CPUERR_ADDRLO: 765 case GT_CPUERR_ADDRHI: 766 case GT_CPUERR_DATALO: 767 case GT_CPUERR_DATAHI: 768 case GT_CPUERR_PARITY: 769 /* Emulated memory has no error, always return the initial values. */ 770 val = s->regs[saddr]; 771 break; 772 773 /* CPU Sync Barrier */ 774 case GT_PCI0SYNC: 775 case GT_PCI1SYNC: 776 /* 777 * Reading those register should empty all FIFO on the PCI 778 * bus, which are not emulated. The return value should be 779 * a random value that should be ignored. 780 */ 781 val = 0xc000ffee; 782 break; 783 784 /* ECC */ 785 case GT_ECC_ERRDATALO: 786 case GT_ECC_ERRDATAHI: 787 case GT_ECC_MEM: 788 case GT_ECC_CALC: 789 case GT_ECC_ERRADDR: 790 /* Emulated memory has no error, always return the initial values. */ 791 val = s->regs[saddr]; 792 break; 793 794 case GT_CPU: 795 case GT_SCS10LD: 796 case GT_SCS10HD: 797 case GT_SCS32LD: 798 case GT_SCS32HD: 799 case GT_CS20LD: 800 case GT_CS20HD: 801 case GT_CS3BOOTLD: 802 case GT_CS3BOOTHD: 803 case GT_SCS10AR: 804 case GT_SCS32AR: 805 case GT_CS20R: 806 case GT_CS3BOOTR: 807 case GT_PCI0IOLD: 808 case GT_PCI0M0LD: 809 case GT_PCI0M1LD: 810 case GT_PCI1IOLD: 811 case GT_PCI1M0LD: 812 case GT_PCI1M1LD: 813 case GT_PCI0IOHD: 814 case GT_PCI0M0HD: 815 case GT_PCI0M1HD: 816 case GT_PCI1IOHD: 817 case GT_PCI1M0HD: 818 case GT_PCI1M1HD: 819 case GT_PCI0IOREMAP: 820 case GT_PCI0M0REMAP: 821 case GT_PCI0M1REMAP: 822 case GT_PCI1IOREMAP: 823 case GT_PCI1M0REMAP: 824 case GT_PCI1M1REMAP: 825 case GT_ISD: 826 val = s->regs[saddr]; 827 break; 828 case GT_PCI0_IACK: 829 /* Read the IRQ number */ 830 val = pic_read_irq(isa_pic); 831 break; 832 833 /* SDRAM and Device Address Decode */ 834 case GT_SCS0LD: 835 case GT_SCS0HD: 836 case GT_SCS1LD: 837 case GT_SCS1HD: 838 case GT_SCS2LD: 839 case GT_SCS2HD: 840 case GT_SCS3LD: 841 case GT_SCS3HD: 842 case GT_CS0LD: 843 case GT_CS0HD: 844 case GT_CS1LD: 845 case GT_CS1HD: 846 case GT_CS2LD: 847 case GT_CS2HD: 848 case GT_CS3LD: 849 case GT_CS3HD: 850 case GT_BOOTLD: 851 case GT_BOOTHD: 852 case GT_ADERR: 853 val = s->regs[saddr]; 854 break; 855 856 /* SDRAM Configuration */ 857 case GT_SDRAM_CFG: 858 case GT_SDRAM_OPMODE: 859 case GT_SDRAM_BM: 860 case GT_SDRAM_ADDRDECODE: 861 val = s->regs[saddr]; 862 break; 863 864 /* SDRAM Parameters */ 865 case GT_SDRAM_B0: 866 case GT_SDRAM_B1: 867 case GT_SDRAM_B2: 868 case GT_SDRAM_B3: 869 /* 870 * We don't simulate electrical parameters of the SDRAM. 871 * Just return the last written value. 872 */ 873 val = s->regs[saddr]; 874 break; 875 876 /* Device Parameters */ 877 case GT_DEV_B0: 878 case GT_DEV_B1: 879 case GT_DEV_B2: 880 case GT_DEV_B3: 881 case GT_DEV_BOOT: 882 val = s->regs[saddr]; 883 break; 884 885 /* DMA Record */ 886 case GT_DMA0_CNT: 887 case GT_DMA1_CNT: 888 case GT_DMA2_CNT: 889 case GT_DMA3_CNT: 890 case GT_DMA0_SA: 891 case GT_DMA1_SA: 892 case GT_DMA2_SA: 893 case GT_DMA3_SA: 894 case GT_DMA0_DA: 895 case GT_DMA1_DA: 896 case GT_DMA2_DA: 897 case GT_DMA3_DA: 898 case GT_DMA0_NEXT: 899 case GT_DMA1_NEXT: 900 case GT_DMA2_NEXT: 901 case GT_DMA3_NEXT: 902 case GT_DMA0_CUR: 903 case GT_DMA1_CUR: 904 case GT_DMA2_CUR: 905 case GT_DMA3_CUR: 906 val = s->regs[saddr]; 907 break; 908 909 /* DMA Channel Control */ 910 case GT_DMA0_CTRL: 911 case GT_DMA1_CTRL: 912 case GT_DMA2_CTRL: 913 case GT_DMA3_CTRL: 914 val = s->regs[saddr]; 915 break; 916 917 /* DMA Arbiter */ 918 case GT_DMA_ARB: 919 val = s->regs[saddr]; 920 break; 921 922 /* Timer/Counter */ 923 case GT_TC0: 924 case GT_TC1: 925 case GT_TC2: 926 case GT_TC3: 927 case GT_TC_CONTROL: 928 val = s->regs[saddr]; 929 break; 930 931 /* PCI Internal */ 932 case GT_PCI0_CFGADDR: 933 case GT_PCI0_CFGDATA: 934 /* Mapped via in gt64120_pci_mapping() */ 935 g_assert_not_reached(); 936 break; 937 938 case GT_PCI0_CMD: 939 case GT_PCI0_TOR: 940 case GT_PCI0_BS_SCS10: 941 case GT_PCI0_BS_SCS32: 942 case GT_PCI0_BS_CS20: 943 case GT_PCI0_BS_CS3BT: 944 case GT_PCI1_IACK: 945 case GT_PCI0_BARE: 946 case GT_PCI0_PREFMBR: 947 case GT_PCI0_SCS10_BAR: 948 case GT_PCI0_SCS32_BAR: 949 case GT_PCI0_CS20_BAR: 950 case GT_PCI0_CS3BT_BAR: 951 case GT_PCI0_SSCS10_BAR: 952 case GT_PCI0_SSCS32_BAR: 953 case GT_PCI0_SCS3BT_BAR: 954 case GT_PCI1_CMD: 955 case GT_PCI1_TOR: 956 case GT_PCI1_BS_SCS10: 957 case GT_PCI1_BS_SCS32: 958 case GT_PCI1_BS_CS20: 959 case GT_PCI1_BS_CS3BT: 960 case GT_PCI1_BARE: 961 case GT_PCI1_PREFMBR: 962 case GT_PCI1_SCS10_BAR: 963 case GT_PCI1_SCS32_BAR: 964 case GT_PCI1_CS20_BAR: 965 case GT_PCI1_CS3BT_BAR: 966 case GT_PCI1_SSCS10_BAR: 967 case GT_PCI1_SSCS32_BAR: 968 case GT_PCI1_SCS3BT_BAR: 969 case GT_PCI1_CFGADDR: 970 case GT_PCI1_CFGDATA: 971 val = s->regs[saddr]; 972 break; 973 974 /* Interrupts */ 975 case GT_INTRCAUSE: 976 val = s->regs[saddr]; 977 trace_gt64120_read_intreg("INTRCAUSE", size, val); 978 break; 979 case GT_INTRMASK: 980 val = s->regs[saddr]; 981 trace_gt64120_read_intreg("INTRMASK", size, val); 982 break; 983 case GT_PCI0_ICMASK: 984 val = s->regs[saddr]; 985 trace_gt64120_read_intreg("ICMASK", size, val); 986 break; 987 case GT_PCI0_SERR0MASK: 988 val = s->regs[saddr]; 989 trace_gt64120_read_intreg("SERR0MASK", size, val); 990 break; 991 992 /* Reserved when only PCI_0 is configured. */ 993 case GT_HINTRCAUSE: 994 case GT_CPU_INTSEL: 995 case GT_PCI0_INTSEL: 996 case GT_HINTRMASK: 997 case GT_PCI0_HICMASK: 998 case GT_PCI1_SERR1MASK: 999 val = s->regs[saddr]; 1000 break; 1001 1002 default: 1003 val = s->regs[saddr]; 1004 qemu_log_mask(LOG_GUEST_ERROR, 1005 "gt64120: Illegal register read " 1006 "reg:0x%03x size:%u value:0x%0*x\n", 1007 saddr << 2, size, size << 1, val); 1008 break; 1009 } 1010 1011 if (!(s->regs[GT_CPU] & 0x00001000)) { 1012 val = bswap32(val); 1013 } 1014 trace_gt64120_read(addr, val); 1015 1016 return val; 1017 } 1018 1019 static const MemoryRegionOps isd_mem_ops = { 1020 .read = gt64120_readl, 1021 .write = gt64120_writel, 1022 .endianness = DEVICE_NATIVE_ENDIAN, 1023 .impl = { 1024 .min_access_size = 4, 1025 .max_access_size = 4, 1026 }, 1027 }; 1028 1029 static void gt64120_reset(DeviceState *dev) 1030 { 1031 GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev); 1032 1033 /* FIXME: Malta specific hw assumptions ahead */ 1034 1035 /* CPU Configuration */ 1036 s->regs[GT_CPU] = s->cpu_little_endian ? R_GT_CPU_Endianness_MASK : 0; 1037 s->regs[GT_MULTI] = 0x00000003; 1038 1039 /* CPU Address decode */ 1040 s->regs[GT_SCS10LD] = 0x00000000; 1041 s->regs[GT_SCS10HD] = 0x00000007; 1042 s->regs[GT_SCS32LD] = 0x00000008; 1043 s->regs[GT_SCS32HD] = 0x0000000f; 1044 s->regs[GT_CS20LD] = 0x000000e0; 1045 s->regs[GT_CS20HD] = 0x00000070; 1046 s->regs[GT_CS3BOOTLD] = 0x000000f8; 1047 s->regs[GT_CS3BOOTHD] = 0x0000007f; 1048 1049 s->regs[GT_PCI0IOLD] = 0x00000080; 1050 s->regs[GT_PCI0IOHD] = 0x0000000f; 1051 s->regs[GT_PCI0M0LD] = 0x00000090; 1052 s->regs[GT_PCI0M0HD] = 0x0000001f; 1053 s->regs[GT_ISD] = 0x000000a0; 1054 s->regs[GT_PCI0M1LD] = 0x00000790; 1055 s->regs[GT_PCI0M1HD] = 0x0000001f; 1056 s->regs[GT_PCI1IOLD] = 0x00000100; 1057 s->regs[GT_PCI1IOHD] = 0x0000000f; 1058 s->regs[GT_PCI1M0LD] = 0x00000110; 1059 s->regs[GT_PCI1M0HD] = 0x0000001f; 1060 s->regs[GT_PCI1M1LD] = 0x00000120; 1061 s->regs[GT_PCI1M1HD] = 0x0000002f; 1062 1063 s->regs[GT_SCS10AR] = 0x00000000; 1064 s->regs[GT_SCS32AR] = 0x00000008; 1065 s->regs[GT_CS20R] = 0x000000e0; 1066 s->regs[GT_CS3BOOTR] = 0x000000f8; 1067 1068 s->regs[GT_PCI0IOREMAP] = 0x00000080; 1069 s->regs[GT_PCI0M0REMAP] = 0x00000090; 1070 s->regs[GT_PCI0M1REMAP] = 0x00000790; 1071 s->regs[GT_PCI1IOREMAP] = 0x00000100; 1072 s->regs[GT_PCI1M0REMAP] = 0x00000110; 1073 s->regs[GT_PCI1M1REMAP] = 0x00000120; 1074 1075 /* CPU Error Report */ 1076 s->regs[GT_CPUERR_ADDRLO] = 0x00000000; 1077 s->regs[GT_CPUERR_ADDRHI] = 0x00000000; 1078 s->regs[GT_CPUERR_DATALO] = 0xffffffff; 1079 s->regs[GT_CPUERR_DATAHI] = 0xffffffff; 1080 s->regs[GT_CPUERR_PARITY] = 0x000000ff; 1081 1082 /* CPU Sync Barrier */ 1083 s->regs[GT_PCI0SYNC] = 0x00000000; 1084 s->regs[GT_PCI1SYNC] = 0x00000000; 1085 1086 /* SDRAM and Device Address Decode */ 1087 s->regs[GT_SCS0LD] = 0x00000000; 1088 s->regs[GT_SCS0HD] = 0x00000007; 1089 s->regs[GT_SCS1LD] = 0x00000008; 1090 s->regs[GT_SCS1HD] = 0x0000000f; 1091 s->regs[GT_SCS2LD] = 0x00000010; 1092 s->regs[GT_SCS2HD] = 0x00000017; 1093 s->regs[GT_SCS3LD] = 0x00000018; 1094 s->regs[GT_SCS3HD] = 0x0000001f; 1095 s->regs[GT_CS0LD] = 0x000000c0; 1096 s->regs[GT_CS0HD] = 0x000000c7; 1097 s->regs[GT_CS1LD] = 0x000000c8; 1098 s->regs[GT_CS1HD] = 0x000000cf; 1099 s->regs[GT_CS2LD] = 0x000000d0; 1100 s->regs[GT_CS2HD] = 0x000000df; 1101 s->regs[GT_CS3LD] = 0x000000f0; 1102 s->regs[GT_CS3HD] = 0x000000fb; 1103 s->regs[GT_BOOTLD] = 0x000000fc; 1104 s->regs[GT_BOOTHD] = 0x000000ff; 1105 s->regs[GT_ADERR] = 0xffffffff; 1106 1107 /* SDRAM Configuration */ 1108 s->regs[GT_SDRAM_CFG] = 0x00000200; 1109 s->regs[GT_SDRAM_OPMODE] = 0x00000000; 1110 s->regs[GT_SDRAM_BM] = 0x00000007; 1111 s->regs[GT_SDRAM_ADDRDECODE] = 0x00000002; 1112 1113 /* SDRAM Parameters */ 1114 s->regs[GT_SDRAM_B0] = 0x00000005; 1115 s->regs[GT_SDRAM_B1] = 0x00000005; 1116 s->regs[GT_SDRAM_B2] = 0x00000005; 1117 s->regs[GT_SDRAM_B3] = 0x00000005; 1118 1119 /* ECC */ 1120 s->regs[GT_ECC_ERRDATALO] = 0x00000000; 1121 s->regs[GT_ECC_ERRDATAHI] = 0x00000000; 1122 s->regs[GT_ECC_MEM] = 0x00000000; 1123 s->regs[GT_ECC_CALC] = 0x00000000; 1124 s->regs[GT_ECC_ERRADDR] = 0x00000000; 1125 1126 /* Device Parameters */ 1127 s->regs[GT_DEV_B0] = 0x386fffff; 1128 s->regs[GT_DEV_B1] = 0x386fffff; 1129 s->regs[GT_DEV_B2] = 0x386fffff; 1130 s->regs[GT_DEV_B3] = 0x386fffff; 1131 s->regs[GT_DEV_BOOT] = 0x146fffff; 1132 1133 /* DMA registers are all zeroed at reset */ 1134 1135 /* Timer/Counter */ 1136 s->regs[GT_TC0] = 0xffffffff; 1137 s->regs[GT_TC1] = 0x00ffffff; 1138 s->regs[GT_TC2] = 0x00ffffff; 1139 s->regs[GT_TC3] = 0x00ffffff; 1140 s->regs[GT_TC_CONTROL] = 0x00000000; 1141 1142 /* PCI Internal */ 1143 s->regs[GT_PCI0_CMD] = s->cpu_little_endian ? R_GT_PCI0_CMD_ByteSwap_MASK : 0; 1144 s->regs[GT_PCI0_TOR] = 0x0000070f; 1145 s->regs[GT_PCI0_BS_SCS10] = 0x00fff000; 1146 s->regs[GT_PCI0_BS_SCS32] = 0x00fff000; 1147 s->regs[GT_PCI0_BS_CS20] = 0x01fff000; 1148 s->regs[GT_PCI0_BS_CS3BT] = 0x00fff000; 1149 s->regs[GT_PCI1_IACK] = 0x00000000; 1150 s->regs[GT_PCI0_IACK] = 0x00000000; 1151 s->regs[GT_PCI0_BARE] = 0x0000000f; 1152 s->regs[GT_PCI0_PREFMBR] = 0x00000040; 1153 s->regs[GT_PCI0_SCS10_BAR] = 0x00000000; 1154 s->regs[GT_PCI0_SCS32_BAR] = 0x01000000; 1155 s->regs[GT_PCI0_CS20_BAR] = 0x1c000000; 1156 s->regs[GT_PCI0_CS3BT_BAR] = 0x1f000000; 1157 s->regs[GT_PCI0_SSCS10_BAR] = 0x00000000; 1158 s->regs[GT_PCI0_SSCS32_BAR] = 0x01000000; 1159 s->regs[GT_PCI0_SCS3BT_BAR] = 0x1f000000; 1160 s->regs[GT_PCI1_CMD] = s->cpu_little_endian ? R_GT_PCI1_CMD_ByteSwap_MASK : 0; 1161 s->regs[GT_PCI1_TOR] = 0x0000070f; 1162 s->regs[GT_PCI1_BS_SCS10] = 0x00fff000; 1163 s->regs[GT_PCI1_BS_SCS32] = 0x00fff000; 1164 s->regs[GT_PCI1_BS_CS20] = 0x01fff000; 1165 s->regs[GT_PCI1_BS_CS3BT] = 0x00fff000; 1166 s->regs[GT_PCI1_BARE] = 0x0000000f; 1167 s->regs[GT_PCI1_PREFMBR] = 0x00000040; 1168 s->regs[GT_PCI1_SCS10_BAR] = 0x00000000; 1169 s->regs[GT_PCI1_SCS32_BAR] = 0x01000000; 1170 s->regs[GT_PCI1_CS20_BAR] = 0x1c000000; 1171 s->regs[GT_PCI1_CS3BT_BAR] = 0x1f000000; 1172 s->regs[GT_PCI1_SSCS10_BAR] = 0x00000000; 1173 s->regs[GT_PCI1_SSCS32_BAR] = 0x01000000; 1174 s->regs[GT_PCI1_SCS3BT_BAR] = 0x1f000000; 1175 s->regs[GT_PCI1_CFGADDR] = 0x00000000; 1176 s->regs[GT_PCI1_CFGDATA] = 0x00000000; 1177 s->regs[GT_PCI0_CFGADDR] = 0x00000000; 1178 1179 /* Interrupt registers are all zeroed at reset */ 1180 1181 gt64120_isd_mapping(s); 1182 gt64120_pci_mapping(s); 1183 gt64120_update_pci_cfgdata_mapping(s); 1184 } 1185 1186 static void gt64120_realize(DeviceState *dev, Error **errp) 1187 { 1188 GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev); 1189 PCIHostState *phb = PCI_HOST_BRIDGE(dev); 1190 1191 memory_region_init_io(&s->ISD_mem, OBJECT(dev), &isd_mem_ops, s, 1192 "gt64120-isd", 0x1000); 1193 memory_region_init(&s->pci0_mem, OBJECT(dev), "pci0-mem", 4 * GiB); 1194 address_space_init(&s->pci0_mem_as, &s->pci0_mem, "pci0-mem"); 1195 phb->bus = pci_root_bus_new(dev, "pci", 1196 &s->pci0_mem, 1197 get_system_io(), 1198 PCI_DEVFN(18, 0), TYPE_PCI_BUS); 1199 1200 pci_create_simple(phb->bus, PCI_DEVFN(0, 0), "gt64120_pci"); 1201 memory_region_init_io(&phb->conf_mem, OBJECT(phb), 1202 &pci_host_conf_le_ops, 1203 s, "pci-conf-idx", 4); 1204 memory_region_add_subregion_overlap(&s->ISD_mem, GT_PCI0_CFGADDR << 2, 1205 &phb->conf_mem, 1); 1206 1207 1208 /* 1209 * The whole address space decoded by the GT-64120A doesn't generate 1210 * exception when accessing invalid memory. Create an empty slot to 1211 * emulate this feature. 1212 */ 1213 empty_slot_init("GT64120", 0, 0x20000000); 1214 } 1215 1216 static void gt64120_pci_realize(PCIDevice *d, Error **errp) 1217 { 1218 /* Values from chapter 17.16 "PCI Configuration" */ 1219 1220 pci_set_long(d->wmask + PCI_BASE_ADDRESS_0, 0xfffff008); /* SCS[1:0] */ 1221 pci_set_long(d->wmask + PCI_BASE_ADDRESS_1, 0xfffff008); /* SCS[3:2] */ 1222 pci_set_long(d->wmask + PCI_BASE_ADDRESS_2, 0xfffff008); /* CS[2:0] */ 1223 pci_set_long(d->wmask + PCI_BASE_ADDRESS_3, 0xfffff008); /* CS[3], BootCS */ 1224 pci_set_long(d->wmask + PCI_BASE_ADDRESS_4, 0xfffff000); /* ISD MMIO */ 1225 pci_set_long(d->wmask + PCI_BASE_ADDRESS_5, 0xfffff001); /* ISD I/O */ 1226 } 1227 1228 static void gt64120_pci_reset_hold(Object *obj, ResetType type) 1229 { 1230 PCIDevice *d = PCI_DEVICE(obj); 1231 1232 /* Values from chapter 17.16 "PCI Configuration" */ 1233 1234 pci_set_word(d->config + PCI_COMMAND, 0); 1235 pci_set_word(d->config + PCI_STATUS, 1236 PCI_STATUS_FAST_BACK | PCI_STATUS_DEVSEL_MEDIUM); 1237 pci_config_set_prog_interface(d->config, 0); 1238 1239 pci_set_long(d->config + PCI_BASE_ADDRESS_0, 0x00000008); 1240 pci_set_long(d->config + PCI_BASE_ADDRESS_1, 0x01000008); 1241 pci_set_long(d->config + PCI_BASE_ADDRESS_2, 0x1c000000); 1242 pci_set_long(d->config + PCI_BASE_ADDRESS_3, 0x1f000000); 1243 pci_set_long(d->config + PCI_BASE_ADDRESS_4, 0x14000000); 1244 pci_set_long(d->config + PCI_BASE_ADDRESS_5, 0x14000001); 1245 1246 pci_set_byte(d->config + 0x3d, 0x01); 1247 } 1248 1249 static void gt64120_pci_class_init(ObjectClass *klass, void *data) 1250 { 1251 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 1252 DeviceClass *dc = DEVICE_CLASS(klass); 1253 ResettableClass *rc = RESETTABLE_CLASS(klass); 1254 1255 rc->phases.hold = gt64120_pci_reset_hold; 1256 k->realize = gt64120_pci_realize; 1257 k->vendor_id = PCI_VENDOR_ID_MARVELL; 1258 k->device_id = PCI_DEVICE_ID_MARVELL_GT6412X; 1259 k->revision = 0x10; 1260 k->class_id = PCI_CLASS_BRIDGE_HOST; 1261 /* 1262 * PCI-facing part of the host bridge, not usable without the 1263 * host-facing part, which can't be device_add'ed, yet. 1264 */ 1265 dc->user_creatable = false; 1266 } 1267 1268 static const TypeInfo gt64120_pci_info = { 1269 .name = "gt64120_pci", 1270 .parent = TYPE_PCI_DEVICE, 1271 .instance_size = sizeof(PCIDevice), 1272 .class_init = gt64120_pci_class_init, 1273 .interfaces = (InterfaceInfo[]) { 1274 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 1275 { }, 1276 }, 1277 }; 1278 1279 static Property gt64120_properties[] = { 1280 DEFINE_PROP_BOOL("cpu-little-endian", GT64120State, 1281 cpu_little_endian, false), 1282 DEFINE_PROP_END_OF_LIST(), 1283 }; 1284 1285 static void gt64120_class_init(ObjectClass *klass, void *data) 1286 { 1287 DeviceClass *dc = DEVICE_CLASS(klass); 1288 1289 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 1290 device_class_set_props(dc, gt64120_properties); 1291 dc->realize = gt64120_realize; 1292 dc->reset = gt64120_reset; 1293 dc->vmsd = &vmstate_gt64120; 1294 } 1295 1296 static const TypeInfo gt64120_info = { 1297 .name = TYPE_GT64120_PCI_HOST_BRIDGE, 1298 .parent = TYPE_PCI_HOST_BRIDGE, 1299 .instance_size = sizeof(GT64120State), 1300 .class_init = gt64120_class_init, 1301 }; 1302 1303 static void gt64120_pci_register_types(void) 1304 { 1305 type_register_static(>64120_info); 1306 type_register_static(>64120_pci_info); 1307 } 1308 1309 type_init(gt64120_pci_register_types) 1310