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