1 /* 2 * Product specific probe and attach routines for: 3 * 3940, 2940, aic7895, aic7890, aic7880, 4 * aic7870, aic7860 and aic7850 SCSI controllers 5 * 6 * Copyright (c) 1994-2001 Justin T. Gibbs. 7 * Copyright (c) 2000-2001 Adaptec Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 3. Neither the names of the above-listed copyright holders nor the names 22 * of any contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * Alternatively, this software may be distributed under the terms of the 26 * GNU General Public License ("GPL") version 2 as published by the Free 27 * Software Foundation. 28 * 29 * NO WARRANTY 30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 31 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 33 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 34 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 39 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGES. 41 * 42 * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#79 $ 43 */ 44 45 #ifdef __linux__ 46 #include "aic7xxx_osm.h" 47 #include "aic7xxx_inline.h" 48 #include "aic7xxx_93cx6.h" 49 #else 50 #include <dev/aic7xxx/aic7xxx_osm.h> 51 #include <dev/aic7xxx/aic7xxx_inline.h> 52 #include <dev/aic7xxx/aic7xxx_93cx6.h> 53 #endif 54 55 #include "aic7xxx_pci.h" 56 57 static inline uint64_t 58 ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor) 59 { 60 uint64_t id; 61 62 id = subvendor 63 | (subdevice << 16) 64 | ((uint64_t)vendor << 32) 65 | ((uint64_t)device << 48); 66 67 return (id); 68 } 69 70 #define AHC_PCI_IOADDR PCIR_MAPS /* I/O Address */ 71 #define AHC_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */ 72 73 #define DEVID_9005_TYPE(id) ((id) & 0xF) 74 #define DEVID_9005_TYPE_HBA 0x0 /* Standard Card */ 75 #define DEVID_9005_TYPE_AAA 0x3 /* RAID Card */ 76 #define DEVID_9005_TYPE_SISL 0x5 /* Container ROMB */ 77 #define DEVID_9005_TYPE_MB 0xF /* On Motherboard */ 78 79 #define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4) 80 #define DEVID_9005_MAXRATE_U160 0x0 81 #define DEVID_9005_MAXRATE_ULTRA2 0x1 82 #define DEVID_9005_MAXRATE_ULTRA 0x2 83 #define DEVID_9005_MAXRATE_FAST 0x3 84 85 #define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6) 86 87 #define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8) 88 #define DEVID_9005_CLASS_SPI 0x0 /* Parallel SCSI */ 89 90 #define SUBID_9005_TYPE(id) ((id) & 0xF) 91 #define SUBID_9005_TYPE_MB 0xF /* On Motherboard */ 92 #define SUBID_9005_TYPE_CARD 0x0 /* Standard Card */ 93 #define SUBID_9005_TYPE_LCCARD 0x1 /* Low Cost Card */ 94 #define SUBID_9005_TYPE_RAID 0x3 /* Combined with Raid */ 95 96 #define SUBID_9005_TYPE_KNOWN(id) \ 97 ((((id) & 0xF) == SUBID_9005_TYPE_MB) \ 98 || (((id) & 0xF) == SUBID_9005_TYPE_CARD) \ 99 || (((id) & 0xF) == SUBID_9005_TYPE_LCCARD) \ 100 || (((id) & 0xF) == SUBID_9005_TYPE_RAID)) 101 102 #define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4) 103 #define SUBID_9005_MAXRATE_ULTRA2 0x0 104 #define SUBID_9005_MAXRATE_ULTRA 0x1 105 #define SUBID_9005_MAXRATE_U160 0x2 106 #define SUBID_9005_MAXRATE_RESERVED 0x3 107 108 #define SUBID_9005_SEEPTYPE(id) \ 109 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 110 ? ((id) & 0xC0) >> 6 \ 111 : ((id) & 0x300) >> 8) 112 #define SUBID_9005_SEEPTYPE_NONE 0x0 113 #define SUBID_9005_SEEPTYPE_1K 0x1 114 #define SUBID_9005_SEEPTYPE_2K_4K 0x2 115 #define SUBID_9005_SEEPTYPE_RESERVED 0x3 116 #define SUBID_9005_AUTOTERM(id) \ 117 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 118 ? (((id) & 0x400) >> 10) == 0 \ 119 : (((id) & 0x40) >> 6) == 0) 120 121 #define SUBID_9005_NUMCHAN(id) \ 122 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 123 ? ((id) & 0x300) >> 8 \ 124 : ((id) & 0xC00) >> 10) 125 126 #define SUBID_9005_LEGACYCONN(id) \ 127 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 128 ? 0 \ 129 : ((id) & 0x80) >> 7) 130 131 #define SUBID_9005_MFUNCENB(id) \ 132 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 133 ? ((id) & 0x800) >> 11 \ 134 : ((id) & 0x1000) >> 12) 135 /* 136 * Informational only. Should use chip register to be 137 * certain, but may be use in identification strings. 138 */ 139 #define SUBID_9005_CARD_SCSIWIDTH_MASK 0x2000 140 #define SUBID_9005_CARD_PCIWIDTH_MASK 0x4000 141 #define SUBID_9005_CARD_SEDIFF_MASK 0x8000 142 143 static ahc_device_setup_t ahc_aic785X_setup; 144 static ahc_device_setup_t ahc_aic7860_setup; 145 static ahc_device_setup_t ahc_apa1480_setup; 146 static ahc_device_setup_t ahc_aic7870_setup; 147 static ahc_device_setup_t ahc_aic7870h_setup; 148 static ahc_device_setup_t ahc_aha394X_setup; 149 static ahc_device_setup_t ahc_aha394Xh_setup; 150 static ahc_device_setup_t ahc_aha494X_setup; 151 static ahc_device_setup_t ahc_aha494Xh_setup; 152 static ahc_device_setup_t ahc_aha398X_setup; 153 static ahc_device_setup_t ahc_aic7880_setup; 154 static ahc_device_setup_t ahc_aic7880h_setup; 155 static ahc_device_setup_t ahc_aha2940Pro_setup; 156 static ahc_device_setup_t ahc_aha394XU_setup; 157 static ahc_device_setup_t ahc_aha394XUh_setup; 158 static ahc_device_setup_t ahc_aha398XU_setup; 159 static ahc_device_setup_t ahc_aic7890_setup; 160 static ahc_device_setup_t ahc_aic7892_setup; 161 static ahc_device_setup_t ahc_aic7895_setup; 162 static ahc_device_setup_t ahc_aic7895h_setup; 163 static ahc_device_setup_t ahc_aic7896_setup; 164 static ahc_device_setup_t ahc_aic7899_setup; 165 static ahc_device_setup_t ahc_aha29160C_setup; 166 static ahc_device_setup_t ahc_raid_setup; 167 static ahc_device_setup_t ahc_aha394XX_setup; 168 static ahc_device_setup_t ahc_aha494XX_setup; 169 static ahc_device_setup_t ahc_aha398XX_setup; 170 171 static const struct ahc_pci_identity ahc_pci_ident_table[] = { 172 /* aic7850 based controllers */ 173 { 174 ID_AHA_2902_04_10_15_20C_30C, 175 ID_ALL_MASK, 176 "Adaptec 2902/04/10/15/20C/30C SCSI adapter", 177 ahc_aic785X_setup 178 }, 179 /* aic7860 based controllers */ 180 { 181 ID_AHA_2930CU, 182 ID_ALL_MASK, 183 "Adaptec 2930CU SCSI adapter", 184 ahc_aic7860_setup 185 }, 186 { 187 ID_AHA_1480A & ID_DEV_VENDOR_MASK, 188 ID_DEV_VENDOR_MASK, 189 "Adaptec 1480A Ultra SCSI adapter", 190 ahc_apa1480_setup 191 }, 192 { 193 ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK, 194 ID_DEV_VENDOR_MASK, 195 "Adaptec 2940A Ultra SCSI adapter", 196 ahc_aic7860_setup 197 }, 198 { 199 ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK, 200 ID_DEV_VENDOR_MASK, 201 "Adaptec 2940A/CN Ultra SCSI adapter", 202 ahc_aic7860_setup 203 }, 204 { 205 ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK, 206 ID_DEV_VENDOR_MASK, 207 "Adaptec 2930C Ultra SCSI adapter (VAR)", 208 ahc_aic7860_setup 209 }, 210 /* aic7870 based controllers */ 211 { 212 ID_AHA_2940, 213 ID_ALL_MASK, 214 "Adaptec 2940 SCSI adapter", 215 ahc_aic7870_setup 216 }, 217 { 218 ID_AHA_3940, 219 ID_ALL_MASK, 220 "Adaptec 3940 SCSI adapter", 221 ahc_aha394X_setup 222 }, 223 { 224 ID_AHA_398X, 225 ID_ALL_MASK, 226 "Adaptec 398X SCSI RAID adapter", 227 ahc_aha398X_setup 228 }, 229 { 230 ID_AHA_2944, 231 ID_ALL_MASK, 232 "Adaptec 2944 SCSI adapter", 233 ahc_aic7870h_setup 234 }, 235 { 236 ID_AHA_3944, 237 ID_ALL_MASK, 238 "Adaptec 3944 SCSI adapter", 239 ahc_aha394Xh_setup 240 }, 241 { 242 ID_AHA_4944, 243 ID_ALL_MASK, 244 "Adaptec 4944 SCSI adapter", 245 ahc_aha494Xh_setup 246 }, 247 /* aic7880 based controllers */ 248 { 249 ID_AHA_2940U & ID_DEV_VENDOR_MASK, 250 ID_DEV_VENDOR_MASK, 251 "Adaptec 2940 Ultra SCSI adapter", 252 ahc_aic7880_setup 253 }, 254 { 255 ID_AHA_3940U & ID_DEV_VENDOR_MASK, 256 ID_DEV_VENDOR_MASK, 257 "Adaptec 3940 Ultra SCSI adapter", 258 ahc_aha394XU_setup 259 }, 260 { 261 ID_AHA_2944U & ID_DEV_VENDOR_MASK, 262 ID_DEV_VENDOR_MASK, 263 "Adaptec 2944 Ultra SCSI adapter", 264 ahc_aic7880h_setup 265 }, 266 { 267 ID_AHA_3944U & ID_DEV_VENDOR_MASK, 268 ID_DEV_VENDOR_MASK, 269 "Adaptec 3944 Ultra SCSI adapter", 270 ahc_aha394XUh_setup 271 }, 272 { 273 ID_AHA_398XU & ID_DEV_VENDOR_MASK, 274 ID_DEV_VENDOR_MASK, 275 "Adaptec 398X Ultra SCSI RAID adapter", 276 ahc_aha398XU_setup 277 }, 278 { 279 /* 280 * XXX Don't know the slot numbers 281 * so we can't identify channels 282 */ 283 ID_AHA_4944U & ID_DEV_VENDOR_MASK, 284 ID_DEV_VENDOR_MASK, 285 "Adaptec 4944 Ultra SCSI adapter", 286 ahc_aic7880h_setup 287 }, 288 { 289 ID_AHA_2930U & ID_DEV_VENDOR_MASK, 290 ID_DEV_VENDOR_MASK, 291 "Adaptec 2930 Ultra SCSI adapter", 292 ahc_aic7880_setup 293 }, 294 { 295 ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK, 296 ID_DEV_VENDOR_MASK, 297 "Adaptec 2940 Pro Ultra SCSI adapter", 298 ahc_aha2940Pro_setup 299 }, 300 { 301 ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK, 302 ID_DEV_VENDOR_MASK, 303 "Adaptec 2940/CN Ultra SCSI adapter", 304 ahc_aic7880_setup 305 }, 306 /* Ignore all SISL (AAC on MB) based controllers. */ 307 { 308 ID_9005_SISL_ID, 309 ID_9005_SISL_MASK, 310 NULL, 311 NULL 312 }, 313 /* aic7890 based controllers */ 314 { 315 ID_AHA_2930U2, 316 ID_ALL_MASK, 317 "Adaptec 2930 Ultra2 SCSI adapter", 318 ahc_aic7890_setup 319 }, 320 { 321 ID_AHA_2940U2B, 322 ID_ALL_MASK, 323 "Adaptec 2940B Ultra2 SCSI adapter", 324 ahc_aic7890_setup 325 }, 326 { 327 ID_AHA_2940U2_OEM, 328 ID_ALL_MASK, 329 "Adaptec 2940 Ultra2 SCSI adapter (OEM)", 330 ahc_aic7890_setup 331 }, 332 { 333 ID_AHA_2940U2, 334 ID_ALL_MASK, 335 "Adaptec 2940 Ultra2 SCSI adapter", 336 ahc_aic7890_setup 337 }, 338 { 339 ID_AHA_2950U2B, 340 ID_ALL_MASK, 341 "Adaptec 2950 Ultra2 SCSI adapter", 342 ahc_aic7890_setup 343 }, 344 { 345 ID_AIC7890_ARO, 346 ID_ALL_MASK, 347 "Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)", 348 ahc_aic7890_setup 349 }, 350 { 351 ID_AAA_131U2, 352 ID_ALL_MASK, 353 "Adaptec AAA-131 Ultra2 RAID adapter", 354 ahc_aic7890_setup 355 }, 356 /* aic7892 based controllers */ 357 { 358 ID_AHA_29160, 359 ID_ALL_MASK, 360 "Adaptec 29160 Ultra160 SCSI adapter", 361 ahc_aic7892_setup 362 }, 363 { 364 ID_AHA_29160_CPQ, 365 ID_ALL_MASK, 366 "Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter", 367 ahc_aic7892_setup 368 }, 369 { 370 ID_AHA_29160N, 371 ID_ALL_MASK, 372 "Adaptec 29160N Ultra160 SCSI adapter", 373 ahc_aic7892_setup 374 }, 375 { 376 ID_AHA_29160C, 377 ID_ALL_MASK, 378 "Adaptec 29160C Ultra160 SCSI adapter", 379 ahc_aha29160C_setup 380 }, 381 { 382 ID_AHA_29160B, 383 ID_ALL_MASK, 384 "Adaptec 29160B Ultra160 SCSI adapter", 385 ahc_aic7892_setup 386 }, 387 { 388 ID_AHA_19160B, 389 ID_ALL_MASK, 390 "Adaptec 19160B Ultra160 SCSI adapter", 391 ahc_aic7892_setup 392 }, 393 { 394 ID_AIC7892_ARO, 395 ID_ALL_MASK, 396 "Adaptec aic7892 Ultra160 SCSI adapter (ARO)", 397 ahc_aic7892_setup 398 }, 399 { 400 ID_AHA_2915_30LP, 401 ID_ALL_MASK, 402 "Adaptec 2915/30LP Ultra160 SCSI adapter", 403 ahc_aic7892_setup 404 }, 405 /* aic7895 based controllers */ 406 { 407 ID_AHA_2940U_DUAL, 408 ID_ALL_MASK, 409 "Adaptec 2940/DUAL Ultra SCSI adapter", 410 ahc_aic7895_setup 411 }, 412 { 413 ID_AHA_3940AU, 414 ID_ALL_MASK, 415 "Adaptec 3940A Ultra SCSI adapter", 416 ahc_aic7895_setup 417 }, 418 { 419 ID_AHA_3944AU, 420 ID_ALL_MASK, 421 "Adaptec 3944A Ultra SCSI adapter", 422 ahc_aic7895h_setup 423 }, 424 { 425 ID_AIC7895_ARO, 426 ID_AIC7895_ARO_MASK, 427 "Adaptec aic7895 Ultra SCSI adapter (ARO)", 428 ahc_aic7895_setup 429 }, 430 /* aic7896/97 based controllers */ 431 { 432 ID_AHA_3950U2B_0, 433 ID_ALL_MASK, 434 "Adaptec 3950B Ultra2 SCSI adapter", 435 ahc_aic7896_setup 436 }, 437 { 438 ID_AHA_3950U2B_1, 439 ID_ALL_MASK, 440 "Adaptec 3950B Ultra2 SCSI adapter", 441 ahc_aic7896_setup 442 }, 443 { 444 ID_AHA_3950U2D_0, 445 ID_ALL_MASK, 446 "Adaptec 3950D Ultra2 SCSI adapter", 447 ahc_aic7896_setup 448 }, 449 { 450 ID_AHA_3950U2D_1, 451 ID_ALL_MASK, 452 "Adaptec 3950D Ultra2 SCSI adapter", 453 ahc_aic7896_setup 454 }, 455 { 456 ID_AIC7896_ARO, 457 ID_ALL_MASK, 458 "Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)", 459 ahc_aic7896_setup 460 }, 461 /* aic7899 based controllers */ 462 { 463 ID_AHA_3960D, 464 ID_ALL_MASK, 465 "Adaptec 3960D Ultra160 SCSI adapter", 466 ahc_aic7899_setup 467 }, 468 { 469 ID_AHA_3960D_CPQ, 470 ID_ALL_MASK, 471 "Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter", 472 ahc_aic7899_setup 473 }, 474 { 475 ID_AIC7899_ARO, 476 ID_ALL_MASK, 477 "Adaptec aic7899 Ultra160 SCSI adapter (ARO)", 478 ahc_aic7899_setup 479 }, 480 /* Generic chip probes for devices we don't know 'exactly' */ 481 { 482 ID_AIC7850 & ID_DEV_VENDOR_MASK, 483 ID_DEV_VENDOR_MASK, 484 "Adaptec aic7850 SCSI adapter", 485 ahc_aic785X_setup 486 }, 487 { 488 ID_AIC7855 & ID_DEV_VENDOR_MASK, 489 ID_DEV_VENDOR_MASK, 490 "Adaptec aic7855 SCSI adapter", 491 ahc_aic785X_setup 492 }, 493 { 494 ID_AIC7859 & ID_DEV_VENDOR_MASK, 495 ID_DEV_VENDOR_MASK, 496 "Adaptec aic7859 SCSI adapter", 497 ahc_aic7860_setup 498 }, 499 { 500 ID_AIC7860 & ID_DEV_VENDOR_MASK, 501 ID_DEV_VENDOR_MASK, 502 "Adaptec aic7860 Ultra SCSI adapter", 503 ahc_aic7860_setup 504 }, 505 { 506 ID_AIC7870 & ID_DEV_VENDOR_MASK, 507 ID_DEV_VENDOR_MASK, 508 "Adaptec aic7870 SCSI adapter", 509 ahc_aic7870_setup 510 }, 511 { 512 ID_AIC7880 & ID_DEV_VENDOR_MASK, 513 ID_DEV_VENDOR_MASK, 514 "Adaptec aic7880 Ultra SCSI adapter", 515 ahc_aic7880_setup 516 }, 517 { 518 ID_AIC7890 & ID_9005_GENERIC_MASK, 519 ID_9005_GENERIC_MASK, 520 "Adaptec aic7890/91 Ultra2 SCSI adapter", 521 ahc_aic7890_setup 522 }, 523 { 524 ID_AIC7892 & ID_9005_GENERIC_MASK, 525 ID_9005_GENERIC_MASK, 526 "Adaptec aic7892 Ultra160 SCSI adapter", 527 ahc_aic7892_setup 528 }, 529 { 530 ID_AIC7895 & ID_DEV_VENDOR_MASK, 531 ID_DEV_VENDOR_MASK, 532 "Adaptec aic7895 Ultra SCSI adapter", 533 ahc_aic7895_setup 534 }, 535 { 536 ID_AIC7896 & ID_9005_GENERIC_MASK, 537 ID_9005_GENERIC_MASK, 538 "Adaptec aic7896/97 Ultra2 SCSI adapter", 539 ahc_aic7896_setup 540 }, 541 { 542 ID_AIC7899 & ID_9005_GENERIC_MASK, 543 ID_9005_GENERIC_MASK, 544 "Adaptec aic7899 Ultra160 SCSI adapter", 545 ahc_aic7899_setup 546 }, 547 { 548 ID_AIC7810 & ID_DEV_VENDOR_MASK, 549 ID_DEV_VENDOR_MASK, 550 "Adaptec aic7810 RAID memory controller", 551 ahc_raid_setup 552 }, 553 { 554 ID_AIC7815 & ID_DEV_VENDOR_MASK, 555 ID_DEV_VENDOR_MASK, 556 "Adaptec aic7815 RAID memory controller", 557 ahc_raid_setup 558 } 559 }; 560 561 static const u_int ahc_num_pci_devs = ARRAY_SIZE(ahc_pci_ident_table); 562 563 #define AHC_394X_SLOT_CHANNEL_A 4 564 #define AHC_394X_SLOT_CHANNEL_B 5 565 566 #define AHC_398X_SLOT_CHANNEL_A 4 567 #define AHC_398X_SLOT_CHANNEL_B 8 568 #define AHC_398X_SLOT_CHANNEL_C 12 569 570 #define AHC_494X_SLOT_CHANNEL_A 4 571 #define AHC_494X_SLOT_CHANNEL_B 5 572 #define AHC_494X_SLOT_CHANNEL_C 6 573 #define AHC_494X_SLOT_CHANNEL_D 7 574 575 #define DEVCONFIG 0x40 576 #define PCIERRGENDIS 0x80000000ul 577 #define SCBSIZE32 0x00010000ul /* aic789X only */ 578 #define REXTVALID 0x00001000ul /* ultra cards only */ 579 #define MPORTMODE 0x00000400ul /* aic7870+ only */ 580 #define RAMPSM 0x00000200ul /* aic7870+ only */ 581 #define VOLSENSE 0x00000100ul 582 #define PCI64BIT 0x00000080ul /* 64Bit PCI bus (Ultra2 Only)*/ 583 #define SCBRAMSEL 0x00000080ul 584 #define MRDCEN 0x00000040ul 585 #define EXTSCBTIME 0x00000020ul /* aic7870 only */ 586 #define EXTSCBPEN 0x00000010ul /* aic7870 only */ 587 #define BERREN 0x00000008ul 588 #define DACEN 0x00000004ul 589 #define STPWLEVEL 0x00000002ul 590 #define DIFACTNEGEN 0x00000001ul /* aic7870 only */ 591 592 #define CSIZE_LATTIME 0x0c 593 #define CACHESIZE 0x0000003ful /* only 5 bits */ 594 #define LATTIME 0x0000ff00ul 595 596 /* PCI STATUS definitions */ 597 #define DPE 0x80 598 #define SSE 0x40 599 #define RMA 0x20 600 #define RTA 0x10 601 #define STA 0x08 602 #define DPR 0x01 603 604 static int ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor, 605 uint16_t subdevice, uint16_t subvendor); 606 static int ahc_ext_scbram_present(struct ahc_softc *ahc); 607 static void ahc_scbram_config(struct ahc_softc *ahc, int enable, 608 int pcheck, int fast, int large); 609 static void ahc_probe_ext_scbram(struct ahc_softc *ahc); 610 static void check_extport(struct ahc_softc *ahc, u_int *sxfrctl1); 611 static void ahc_parse_pci_eeprom(struct ahc_softc *ahc, 612 struct seeprom_config *sc); 613 static void configure_termination(struct ahc_softc *ahc, 614 struct seeprom_descriptor *sd, 615 u_int adapter_control, 616 u_int *sxfrctl1); 617 618 static void ahc_new_term_detect(struct ahc_softc *ahc, 619 int *enableSEC_low, 620 int *enableSEC_high, 621 int *enablePRI_low, 622 int *enablePRI_high, 623 int *eeprom_present); 624 static void aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 625 int *internal68_present, 626 int *externalcable_present, 627 int *eeprom_present); 628 static void aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 629 int *externalcable_present, 630 int *eeprom_present); 631 static void write_brdctl(struct ahc_softc *ahc, uint8_t value); 632 static uint8_t read_brdctl(struct ahc_softc *ahc); 633 static void ahc_pci_intr(struct ahc_softc *ahc); 634 static int ahc_pci_chip_init(struct ahc_softc *ahc); 635 636 static int 637 ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor, 638 uint16_t subdevice, uint16_t subvendor) 639 { 640 int result; 641 642 /* Default to invalid. */ 643 result = 0; 644 if (vendor == 0x9005 645 && subvendor == 0x9005 646 && subdevice != device 647 && SUBID_9005_TYPE_KNOWN(subdevice) != 0) { 648 649 switch (SUBID_9005_TYPE(subdevice)) { 650 case SUBID_9005_TYPE_MB: 651 break; 652 case SUBID_9005_TYPE_CARD: 653 case SUBID_9005_TYPE_LCCARD: 654 /* 655 * Currently only trust Adaptec cards to 656 * get the sub device info correct. 657 */ 658 if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA) 659 result = 1; 660 break; 661 case SUBID_9005_TYPE_RAID: 662 break; 663 default: 664 break; 665 } 666 } 667 return (result); 668 } 669 670 const struct ahc_pci_identity * 671 ahc_find_pci_device(ahc_dev_softc_t pci) 672 { 673 uint64_t full_id; 674 uint16_t device; 675 uint16_t vendor; 676 uint16_t subdevice; 677 uint16_t subvendor; 678 const struct ahc_pci_identity *entry; 679 u_int i; 680 681 vendor = ahc_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2); 682 device = ahc_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2); 683 subvendor = ahc_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2); 684 subdevice = ahc_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2); 685 full_id = ahc_compose_id(device, vendor, subdevice, subvendor); 686 687 /* 688 * If the second function is not hooked up, ignore it. 689 * Unfortunately, not all MB vendors implement the 690 * subdevice ID as per the Adaptec spec, so do our best 691 * to sanity check it prior to accepting the subdevice 692 * ID as valid. 693 */ 694 if (ahc_get_pci_function(pci) > 0 695 && ahc_9005_subdevinfo_valid(device, vendor, subdevice, subvendor) 696 && SUBID_9005_MFUNCENB(subdevice) == 0) 697 return (NULL); 698 699 for (i = 0; i < ahc_num_pci_devs; i++) { 700 entry = &ahc_pci_ident_table[i]; 701 if (entry->full_id == (full_id & entry->id_mask)) { 702 /* Honor exclusion entries. */ 703 if (entry->name == NULL) 704 return (NULL); 705 return (entry); 706 } 707 } 708 return (NULL); 709 } 710 711 int 712 ahc_pci_config(struct ahc_softc *ahc, const struct ahc_pci_identity *entry) 713 { 714 u_int command; 715 u_int our_id; 716 u_int sxfrctl1; 717 u_int scsiseq; 718 u_int dscommand0; 719 uint32_t devconfig; 720 int error; 721 uint8_t sblkctl; 722 723 our_id = 0; 724 error = entry->setup(ahc); 725 if (error != 0) 726 return (error); 727 ahc->chip |= AHC_PCI; 728 ahc->description = entry->name; 729 730 pci_set_power_state(ahc->dev_softc, AHC_POWER_STATE_D0); 731 732 error = ahc_pci_map_registers(ahc); 733 if (error != 0) 734 return (error); 735 736 /* 737 * Before we continue probing the card, ensure that 738 * its interrupts are *disabled*. We don't want 739 * a misstep to hang the machine in an interrupt 740 * storm. 741 */ 742 ahc_intr_enable(ahc, FALSE); 743 744 devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4); 745 746 /* 747 * If we need to support high memory, enable dual 748 * address cycles. This bit must be set to enable 749 * high address bit generation even if we are on a 750 * 64bit bus (PCI64BIT set in devconfig). 751 */ 752 if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) { 753 754 if (bootverbose) 755 printk("%s: Enabling 39Bit Addressing\n", 756 ahc_name(ahc)); 757 devconfig |= DACEN; 758 } 759 760 /* Ensure that pci error generation, a test feature, is disabled. */ 761 devconfig |= PCIERRGENDIS; 762 763 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4); 764 765 /* Ensure busmastering is enabled */ 766 command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2); 767 command |= PCIM_CMD_BUSMASTEREN; 768 769 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, /*bytes*/2); 770 771 /* On all PCI adapters, we allow SCB paging */ 772 ahc->flags |= AHC_PAGESCBS; 773 774 error = ahc_softc_init(ahc); 775 if (error != 0) 776 return (error); 777 778 /* 779 * Disable PCI parity error checking. Users typically 780 * do this to work around broken PCI chipsets that get 781 * the parity timing wrong and thus generate lots of spurious 782 * errors. The chip only allows us to disable *all* parity 783 * error reporting when doing this, so CIO bus, scb ram, and 784 * scratch ram parity errors will be ignored too. 785 */ 786 if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0) 787 ahc->seqctl |= FAILDIS; 788 789 ahc->bus_intr = ahc_pci_intr; 790 ahc->bus_chip_init = ahc_pci_chip_init; 791 792 /* Remember how the card was setup in case there is no SEEPROM */ 793 if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) { 794 ahc_pause(ahc); 795 if ((ahc->features & AHC_ULTRA2) != 0) 796 our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID; 797 else 798 our_id = ahc_inb(ahc, SCSIID) & OID; 799 sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN; 800 scsiseq = ahc_inb(ahc, SCSISEQ); 801 } else { 802 sxfrctl1 = STPWEN; 803 our_id = 7; 804 scsiseq = 0; 805 } 806 807 error = ahc_reset(ahc, /*reinit*/FALSE); 808 if (error != 0) 809 return (ENXIO); 810 811 if ((ahc->features & AHC_DT) != 0) { 812 u_int sfunct; 813 814 /* Perform ALT-Mode Setup */ 815 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE; 816 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE); 817 ahc_outb(ahc, OPTIONMODE, 818 OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS); 819 ahc_outb(ahc, SFUNCT, sfunct); 820 821 /* Normal mode setup */ 822 ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN 823 |TARGCRCENDEN); 824 } 825 826 dscommand0 = ahc_inb(ahc, DSCOMMAND0); 827 dscommand0 |= MPARCKEN|CACHETHEN; 828 if ((ahc->features & AHC_ULTRA2) != 0) { 829 830 /* 831 * DPARCKEN doesn't work correctly on 832 * some MBs so don't use it. 833 */ 834 dscommand0 &= ~DPARCKEN; 835 } 836 837 /* 838 * Handle chips that must have cache line 839 * streaming (dis/en)abled. 840 */ 841 if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0) 842 dscommand0 |= CACHETHEN; 843 844 if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0) 845 dscommand0 &= ~CACHETHEN; 846 847 ahc_outb(ahc, DSCOMMAND0, dscommand0); 848 849 ahc->pci_cachesize = 850 ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, 851 /*bytes*/1) & CACHESIZE; 852 ahc->pci_cachesize *= 4; 853 854 if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0 855 && ahc->pci_cachesize == 4) { 856 857 ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME, 858 0, /*bytes*/1); 859 ahc->pci_cachesize = 0; 860 } 861 862 /* 863 * We cannot perform ULTRA speeds without the presence 864 * of the external precision resistor. 865 */ 866 if ((ahc->features & AHC_ULTRA) != 0) { 867 uint32_t devconfig; 868 869 devconfig = ahc_pci_read_config(ahc->dev_softc, 870 DEVCONFIG, /*bytes*/4); 871 if ((devconfig & REXTVALID) == 0) 872 ahc->features &= ~AHC_ULTRA; 873 } 874 875 /* See if we have a SEEPROM and perform auto-term */ 876 check_extport(ahc, &sxfrctl1); 877 878 /* 879 * Take the LED out of diagnostic mode 880 */ 881 sblkctl = ahc_inb(ahc, SBLKCTL); 882 ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON))); 883 884 if ((ahc->features & AHC_ULTRA2) != 0) { 885 ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX); 886 } else { 887 ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100); 888 } 889 890 if (ahc->flags & AHC_USEDEFAULTS) { 891 /* 892 * PCI Adapter default setup 893 * Should only be used if the adapter does not have 894 * a SEEPROM. 895 */ 896 /* See if someone else set us up already */ 897 if ((ahc->flags & AHC_NO_BIOS_INIT) == 0 898 && scsiseq != 0) { 899 printk("%s: Using left over BIOS settings\n", 900 ahc_name(ahc)); 901 ahc->flags &= ~AHC_USEDEFAULTS; 902 ahc->flags |= AHC_BIOS_ENABLED; 903 } else { 904 /* 905 * Assume only one connector and always turn 906 * on termination. 907 */ 908 our_id = 0x07; 909 sxfrctl1 = STPWEN; 910 } 911 ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI); 912 913 ahc->our_id = our_id; 914 } 915 916 /* 917 * Take a look to see if we have external SRAM. 918 * We currently do not attempt to use SRAM that is 919 * shared among multiple controllers. 920 */ 921 ahc_probe_ext_scbram(ahc); 922 923 /* 924 * Record our termination setting for the 925 * generic initialization routine. 926 */ 927 if ((sxfrctl1 & STPWEN) != 0) 928 ahc->flags |= AHC_TERM_ENB_A; 929 930 /* 931 * Save chip register configuration data for chip resets 932 * that occur during runtime and resume events. 933 */ 934 ahc->bus_softc.pci_softc.devconfig = 935 ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4); 936 ahc->bus_softc.pci_softc.command = 937 ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1); 938 ahc->bus_softc.pci_softc.csize_lattime = 939 ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1); 940 ahc->bus_softc.pci_softc.dscommand0 = ahc_inb(ahc, DSCOMMAND0); 941 ahc->bus_softc.pci_softc.dspcistatus = ahc_inb(ahc, DSPCISTATUS); 942 if ((ahc->features & AHC_DT) != 0) { 943 u_int sfunct; 944 945 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE; 946 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE); 947 ahc->bus_softc.pci_softc.optionmode = ahc_inb(ahc, OPTIONMODE); 948 ahc->bus_softc.pci_softc.targcrccnt = ahc_inw(ahc, TARGCRCCNT); 949 ahc_outb(ahc, SFUNCT, sfunct); 950 ahc->bus_softc.pci_softc.crccontrol1 = 951 ahc_inb(ahc, CRCCONTROL1); 952 } 953 if ((ahc->features & AHC_MULTI_FUNC) != 0) 954 ahc->bus_softc.pci_softc.scbbaddr = ahc_inb(ahc, SCBBADDR); 955 956 if ((ahc->features & AHC_ULTRA2) != 0) 957 ahc->bus_softc.pci_softc.dff_thrsh = ahc_inb(ahc, DFF_THRSH); 958 959 /* Core initialization */ 960 error = ahc_init(ahc); 961 if (error != 0) 962 return (error); 963 ahc->init_level++; 964 965 /* 966 * Allow interrupts now that we are completely setup. 967 */ 968 return ahc_pci_map_int(ahc); 969 } 970 971 /* 972 * Test for the presence of external sram in an 973 * "unshared" configuration. 974 */ 975 static int 976 ahc_ext_scbram_present(struct ahc_softc *ahc) 977 { 978 u_int chip; 979 int ramps; 980 int single_user; 981 uint32_t devconfig; 982 983 chip = ahc->chip & AHC_CHIPID_MASK; 984 devconfig = ahc_pci_read_config(ahc->dev_softc, 985 DEVCONFIG, /*bytes*/4); 986 single_user = (devconfig & MPORTMODE) != 0; 987 988 if ((ahc->features & AHC_ULTRA2) != 0) 989 ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0; 990 else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C) 991 /* 992 * External SCBRAM arbitration is flakey 993 * on these chips. Unfortunately this means 994 * we don't use the extra SCB ram space on the 995 * 3940AUW. 996 */ 997 ramps = 0; 998 else if (chip >= AHC_AIC7870) 999 ramps = (devconfig & RAMPSM) != 0; 1000 else 1001 ramps = 0; 1002 1003 if (ramps && single_user) 1004 return (1); 1005 return (0); 1006 } 1007 1008 /* 1009 * Enable external scbram. 1010 */ 1011 static void 1012 ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck, 1013 int fast, int large) 1014 { 1015 uint32_t devconfig; 1016 1017 if (ahc->features & AHC_MULTI_FUNC) { 1018 /* 1019 * Set the SCB Base addr (highest address bit) 1020 * depending on which channel we are. 1021 */ 1022 ahc_outb(ahc, SCBBADDR, ahc_get_pci_function(ahc->dev_softc)); 1023 } 1024 1025 ahc->flags &= ~AHC_LSCBS_ENABLED; 1026 if (large) 1027 ahc->flags |= AHC_LSCBS_ENABLED; 1028 devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4); 1029 if ((ahc->features & AHC_ULTRA2) != 0) { 1030 u_int dscommand0; 1031 1032 dscommand0 = ahc_inb(ahc, DSCOMMAND0); 1033 if (enable) 1034 dscommand0 &= ~INTSCBRAMSEL; 1035 else 1036 dscommand0 |= INTSCBRAMSEL; 1037 if (large) 1038 dscommand0 &= ~USCBSIZE32; 1039 else 1040 dscommand0 |= USCBSIZE32; 1041 ahc_outb(ahc, DSCOMMAND0, dscommand0); 1042 } else { 1043 if (fast) 1044 devconfig &= ~EXTSCBTIME; 1045 else 1046 devconfig |= EXTSCBTIME; 1047 if (enable) 1048 devconfig &= ~SCBRAMSEL; 1049 else 1050 devconfig |= SCBRAMSEL; 1051 if (large) 1052 devconfig &= ~SCBSIZE32; 1053 else 1054 devconfig |= SCBSIZE32; 1055 } 1056 if (pcheck) 1057 devconfig |= EXTSCBPEN; 1058 else 1059 devconfig &= ~EXTSCBPEN; 1060 1061 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4); 1062 } 1063 1064 /* 1065 * Take a look to see if we have external SRAM. 1066 * We currently do not attempt to use SRAM that is 1067 * shared among multiple controllers. 1068 */ 1069 static void 1070 ahc_probe_ext_scbram(struct ahc_softc *ahc) 1071 { 1072 int num_scbs; 1073 int test_num_scbs; 1074 int enable; 1075 int pcheck; 1076 int fast; 1077 int large; 1078 1079 enable = FALSE; 1080 pcheck = FALSE; 1081 fast = FALSE; 1082 large = FALSE; 1083 num_scbs = 0; 1084 1085 if (ahc_ext_scbram_present(ahc) == 0) 1086 goto done; 1087 1088 /* 1089 * Probe for the best parameters to use. 1090 */ 1091 ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large); 1092 num_scbs = ahc_probe_scbs(ahc); 1093 if (num_scbs == 0) { 1094 /* The SRAM wasn't really present. */ 1095 goto done; 1096 } 1097 enable = TRUE; 1098 1099 /* 1100 * Clear any outstanding parity error 1101 * and ensure that parity error reporting 1102 * is enabled. 1103 */ 1104 ahc_outb(ahc, SEQCTL, 0); 1105 ahc_outb(ahc, CLRINT, CLRPARERR); 1106 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1107 1108 /* Now see if we can do parity */ 1109 ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large); 1110 num_scbs = ahc_probe_scbs(ahc); 1111 if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0 1112 || (ahc_inb(ahc, ERROR) & MPARERR) == 0) 1113 pcheck = TRUE; 1114 1115 /* Clear any resulting parity error */ 1116 ahc_outb(ahc, CLRINT, CLRPARERR); 1117 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1118 1119 /* Now see if we can do fast timing */ 1120 ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large); 1121 test_num_scbs = ahc_probe_scbs(ahc); 1122 if (test_num_scbs == num_scbs 1123 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0 1124 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)) 1125 fast = TRUE; 1126 1127 /* 1128 * See if we can use large SCBs and still maintain 1129 * the same overall count of SCBs. 1130 */ 1131 if ((ahc->features & AHC_LARGE_SCBS) != 0) { 1132 ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE); 1133 test_num_scbs = ahc_probe_scbs(ahc); 1134 if (test_num_scbs >= num_scbs) { 1135 large = TRUE; 1136 num_scbs = test_num_scbs; 1137 if (num_scbs >= 64) { 1138 /* 1139 * We have enough space to move the 1140 * "busy targets table" into SCB space 1141 * and make it qualify all the way to the 1142 * lun level. 1143 */ 1144 ahc->flags |= AHC_SCB_BTT; 1145 } 1146 } 1147 } 1148 done: 1149 /* 1150 * Disable parity error reporting until we 1151 * can load instruction ram. 1152 */ 1153 ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS); 1154 /* Clear any latched parity error */ 1155 ahc_outb(ahc, CLRINT, CLRPARERR); 1156 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1157 if (bootverbose && enable) { 1158 printk("%s: External SRAM, %s access%s, %dbytes/SCB\n", 1159 ahc_name(ahc), fast ? "fast" : "slow", 1160 pcheck ? ", parity checking enabled" : "", 1161 large ? 64 : 32); 1162 } 1163 ahc_scbram_config(ahc, enable, pcheck, fast, large); 1164 } 1165 1166 /* 1167 * Perform some simple tests that should catch situations where 1168 * our registers are invalidly mapped. 1169 */ 1170 int 1171 ahc_pci_test_register_access(struct ahc_softc *ahc) 1172 { 1173 int error; 1174 u_int status1; 1175 uint32_t cmd; 1176 uint8_t hcntrl; 1177 1178 error = EIO; 1179 1180 /* 1181 * Enable PCI error interrupt status, but suppress NMIs 1182 * generated by SERR raised due to target aborts. 1183 */ 1184 cmd = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2); 1185 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, 1186 cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2); 1187 1188 /* 1189 * First a simple test to see if any 1190 * registers can be read. Reading 1191 * HCNTRL has no side effects and has 1192 * at least one bit that is guaranteed to 1193 * be zero so it is a good register to 1194 * use for this test. 1195 */ 1196 hcntrl = ahc_inb(ahc, HCNTRL); 1197 1198 if (hcntrl == 0xFF) 1199 goto fail; 1200 1201 if ((hcntrl & CHIPRST) != 0) { 1202 /* 1203 * The chip has not been initialized since 1204 * PCI/EISA/VLB bus reset. Don't trust 1205 * "left over BIOS data". 1206 */ 1207 ahc->flags |= AHC_NO_BIOS_INIT; 1208 } 1209 1210 /* 1211 * Next create a situation where write combining 1212 * or read prefetching could be initiated by the 1213 * CPU or host bridge. Our device does not support 1214 * either, so look for data corruption and/or flagged 1215 * PCI errors. First pause without causing another 1216 * chip reset. 1217 */ 1218 hcntrl &= ~CHIPRST; 1219 ahc_outb(ahc, HCNTRL, hcntrl|PAUSE); 1220 while (ahc_is_paused(ahc) == 0) 1221 ; 1222 1223 /* Clear any PCI errors that occurred before our driver attached. */ 1224 status1 = ahc_pci_read_config(ahc->dev_softc, 1225 PCIR_STATUS + 1, /*bytes*/1); 1226 ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1, 1227 status1, /*bytes*/1); 1228 ahc_outb(ahc, CLRINT, CLRPARERR); 1229 1230 ahc_outb(ahc, SEQCTL, PERRORDIS); 1231 ahc_outb(ahc, SCBPTR, 0); 1232 ahc_outl(ahc, SCB_BASE, 0x5aa555aa); 1233 if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa) 1234 goto fail; 1235 1236 status1 = ahc_pci_read_config(ahc->dev_softc, 1237 PCIR_STATUS + 1, /*bytes*/1); 1238 if ((status1 & STA) != 0) 1239 goto fail; 1240 1241 error = 0; 1242 1243 fail: 1244 /* Silently clear any latched errors. */ 1245 status1 = ahc_pci_read_config(ahc->dev_softc, 1246 PCIR_STATUS + 1, /*bytes*/1); 1247 ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1, 1248 status1, /*bytes*/1); 1249 ahc_outb(ahc, CLRINT, CLRPARERR); 1250 ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS); 1251 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2); 1252 return (error); 1253 } 1254 1255 /* 1256 * Check the external port logic for a serial eeprom 1257 * and termination/cable detection contrls. 1258 */ 1259 static void 1260 check_extport(struct ahc_softc *ahc, u_int *sxfrctl1) 1261 { 1262 struct seeprom_descriptor sd; 1263 struct seeprom_config *sc; 1264 int have_seeprom; 1265 int have_autoterm; 1266 1267 sd.sd_ahc = ahc; 1268 sd.sd_control_offset = SEECTL; 1269 sd.sd_status_offset = SEECTL; 1270 sd.sd_dataout_offset = SEECTL; 1271 sc = ahc->seep_config; 1272 1273 /* 1274 * For some multi-channel devices, the c46 is simply too 1275 * small to work. For the other controller types, we can 1276 * get our information from either SEEPROM type. Set the 1277 * type to start our probe with accordingly. 1278 */ 1279 if (ahc->flags & AHC_LARGE_SEEPROM) 1280 sd.sd_chip = C56_66; 1281 else 1282 sd.sd_chip = C46; 1283 1284 sd.sd_MS = SEEMS; 1285 sd.sd_RDY = SEERDY; 1286 sd.sd_CS = SEECS; 1287 sd.sd_CK = SEECK; 1288 sd.sd_DO = SEEDO; 1289 sd.sd_DI = SEEDI; 1290 1291 have_seeprom = ahc_acquire_seeprom(ahc, &sd); 1292 if (have_seeprom) { 1293 1294 if (bootverbose) 1295 printk("%s: Reading SEEPROM...", ahc_name(ahc)); 1296 1297 for (;;) { 1298 u_int start_addr; 1299 1300 start_addr = 32 * (ahc->channel - 'A'); 1301 1302 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 1303 start_addr, 1304 sizeof(*sc)/2); 1305 1306 if (have_seeprom) 1307 have_seeprom = ahc_verify_cksum(sc); 1308 1309 if (have_seeprom != 0 || sd.sd_chip == C56_66) { 1310 if (bootverbose) { 1311 if (have_seeprom == 0) 1312 printk ("checksum error\n"); 1313 else 1314 printk ("done.\n"); 1315 } 1316 break; 1317 } 1318 sd.sd_chip = C56_66; 1319 } 1320 ahc_release_seeprom(&sd); 1321 1322 /* Remember the SEEPROM type for later */ 1323 if (sd.sd_chip == C56_66) 1324 ahc->flags |= AHC_LARGE_SEEPROM; 1325 } 1326 1327 if (!have_seeprom) { 1328 /* 1329 * Pull scratch ram settings and treat them as 1330 * if they are the contents of an seeprom if 1331 * the 'ADPT' signature is found in SCB2. 1332 * We manually compose the data as 16bit values 1333 * to avoid endian issues. 1334 */ 1335 ahc_outb(ahc, SCBPTR, 2); 1336 if (ahc_inb(ahc, SCB_BASE) == 'A' 1337 && ahc_inb(ahc, SCB_BASE + 1) == 'D' 1338 && ahc_inb(ahc, SCB_BASE + 2) == 'P' 1339 && ahc_inb(ahc, SCB_BASE + 3) == 'T') { 1340 uint16_t *sc_data; 1341 int i; 1342 1343 sc_data = (uint16_t *)sc; 1344 for (i = 0; i < 32; i++, sc_data++) { 1345 int j; 1346 1347 j = i * 2; 1348 *sc_data = ahc_inb(ahc, SRAM_BASE + j) 1349 | ahc_inb(ahc, SRAM_BASE + j + 1) << 8; 1350 } 1351 have_seeprom = ahc_verify_cksum(sc); 1352 if (have_seeprom) 1353 ahc->flags |= AHC_SCB_CONFIG_USED; 1354 } 1355 /* 1356 * Clear any SCB parity errors in case this data and 1357 * its associated parity was not initialized by the BIOS 1358 */ 1359 ahc_outb(ahc, CLRINT, CLRPARERR); 1360 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1361 } 1362 1363 if (!have_seeprom) { 1364 if (bootverbose) 1365 printk("%s: No SEEPROM available.\n", ahc_name(ahc)); 1366 ahc->flags |= AHC_USEDEFAULTS; 1367 kfree(ahc->seep_config); 1368 ahc->seep_config = NULL; 1369 sc = NULL; 1370 } else { 1371 ahc_parse_pci_eeprom(ahc, sc); 1372 } 1373 1374 /* 1375 * Cards that have the external logic necessary to talk to 1376 * a SEEPROM, are almost certain to have the remaining logic 1377 * necessary for auto-termination control. This assumption 1378 * hasn't failed yet... 1379 */ 1380 have_autoterm = have_seeprom; 1381 1382 /* 1383 * Some low-cost chips have SEEPROM and auto-term control built 1384 * in, instead of using a GAL. They can tell us directly 1385 * if the termination logic is enabled. 1386 */ 1387 if ((ahc->features & AHC_SPIOCAP) != 0) { 1388 if ((ahc_inb(ahc, SPIOCAP) & SSPIOCPS) == 0) 1389 have_autoterm = FALSE; 1390 } 1391 1392 if (have_autoterm) { 1393 ahc->flags |= AHC_HAS_TERM_LOGIC; 1394 ahc_acquire_seeprom(ahc, &sd); 1395 configure_termination(ahc, &sd, sc->adapter_control, sxfrctl1); 1396 ahc_release_seeprom(&sd); 1397 } else if (have_seeprom) { 1398 *sxfrctl1 &= ~STPWEN; 1399 if ((sc->adapter_control & CFSTERM) != 0) 1400 *sxfrctl1 |= STPWEN; 1401 if (bootverbose) 1402 printk("%s: Low byte termination %sabled\n", 1403 ahc_name(ahc), 1404 (*sxfrctl1 & STPWEN) ? "en" : "dis"); 1405 } 1406 } 1407 1408 static void 1409 ahc_parse_pci_eeprom(struct ahc_softc *ahc, struct seeprom_config *sc) 1410 { 1411 /* 1412 * Put the data we've collected down into SRAM 1413 * where ahc_init will find it. 1414 */ 1415 int i; 1416 int max_targ = sc->max_targets & CFMAXTARG; 1417 u_int scsi_conf; 1418 uint16_t discenable; 1419 uint16_t ultraenb; 1420 1421 discenable = 0; 1422 ultraenb = 0; 1423 if ((sc->adapter_control & CFULTRAEN) != 0) { 1424 /* 1425 * Determine if this adapter has a "newstyle" 1426 * SEEPROM format. 1427 */ 1428 for (i = 0; i < max_targ; i++) { 1429 if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) { 1430 ahc->flags |= AHC_NEWEEPROM_FMT; 1431 break; 1432 } 1433 } 1434 } 1435 1436 for (i = 0; i < max_targ; i++) { 1437 u_int scsirate; 1438 uint16_t target_mask; 1439 1440 target_mask = 0x01 << i; 1441 if (sc->device_flags[i] & CFDISC) 1442 discenable |= target_mask; 1443 if ((ahc->flags & AHC_NEWEEPROM_FMT) != 0) { 1444 if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) 1445 ultraenb |= target_mask; 1446 } else if ((sc->adapter_control & CFULTRAEN) != 0) { 1447 ultraenb |= target_mask; 1448 } 1449 if ((sc->device_flags[i] & CFXFER) == 0x04 1450 && (ultraenb & target_mask) != 0) { 1451 /* Treat 10MHz as a non-ultra speed */ 1452 sc->device_flags[i] &= ~CFXFER; 1453 ultraenb &= ~target_mask; 1454 } 1455 if ((ahc->features & AHC_ULTRA2) != 0) { 1456 u_int offset; 1457 1458 if (sc->device_flags[i] & CFSYNCH) 1459 offset = MAX_OFFSET_ULTRA2; 1460 else 1461 offset = 0; 1462 ahc_outb(ahc, TARG_OFFSET + i, offset); 1463 1464 /* 1465 * The ultra enable bits contain the 1466 * high bit of the ultra2 sync rate 1467 * field. 1468 */ 1469 scsirate = (sc->device_flags[i] & CFXFER) 1470 | ((ultraenb & target_mask) ? 0x8 : 0x0); 1471 if (sc->device_flags[i] & CFWIDEB) 1472 scsirate |= WIDEXFER; 1473 } else { 1474 scsirate = (sc->device_flags[i] & CFXFER) << 4; 1475 if (sc->device_flags[i] & CFSYNCH) 1476 scsirate |= SOFS; 1477 if (sc->device_flags[i] & CFWIDEB) 1478 scsirate |= WIDEXFER; 1479 } 1480 ahc_outb(ahc, TARG_SCSIRATE + i, scsirate); 1481 } 1482 ahc->our_id = sc->brtime_id & CFSCSIID; 1483 1484 scsi_conf = (ahc->our_id & 0x7); 1485 if (sc->adapter_control & CFSPARITY) 1486 scsi_conf |= ENSPCHK; 1487 if (sc->adapter_control & CFRESETB) 1488 scsi_conf |= RESET_SCSI; 1489 1490 ahc->flags |= (sc->adapter_control & CFBOOTCHAN) >> CFBOOTCHANSHIFT; 1491 1492 if (sc->bios_control & CFEXTEND) 1493 ahc->flags |= AHC_EXTENDED_TRANS_A; 1494 1495 if (sc->bios_control & CFBIOSEN) 1496 ahc->flags |= AHC_BIOS_ENABLED; 1497 if (ahc->features & AHC_ULTRA 1498 && (ahc->flags & AHC_NEWEEPROM_FMT) == 0) { 1499 /* Should we enable Ultra mode? */ 1500 if (!(sc->adapter_control & CFULTRAEN)) 1501 /* Treat us as a non-ultra card */ 1502 ultraenb = 0; 1503 } 1504 1505 if (sc->signature == CFSIGNATURE 1506 || sc->signature == CFSIGNATURE2) { 1507 uint32_t devconfig; 1508 1509 /* Honor the STPWLEVEL settings */ 1510 devconfig = ahc_pci_read_config(ahc->dev_softc, 1511 DEVCONFIG, /*bytes*/4); 1512 devconfig &= ~STPWLEVEL; 1513 if ((sc->bios_control & CFSTPWLEVEL) != 0) 1514 devconfig |= STPWLEVEL; 1515 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, 1516 devconfig, /*bytes*/4); 1517 } 1518 /* Set SCSICONF info */ 1519 ahc_outb(ahc, SCSICONF, scsi_conf); 1520 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 1521 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 1522 ahc_outb(ahc, ULTRA_ENB, ultraenb & 0xff); 1523 ahc_outb(ahc, ULTRA_ENB + 1, (ultraenb >> 8) & 0xff); 1524 } 1525 1526 static void 1527 configure_termination(struct ahc_softc *ahc, 1528 struct seeprom_descriptor *sd, 1529 u_int adapter_control, 1530 u_int *sxfrctl1) 1531 { 1532 uint8_t brddat; 1533 1534 brddat = 0; 1535 1536 /* 1537 * Update the settings in sxfrctl1 to match the 1538 * termination settings 1539 */ 1540 *sxfrctl1 = 0; 1541 1542 /* 1543 * SEECS must be on for the GALS to latch 1544 * the data properly. Be sure to leave MS 1545 * on or we will release the seeprom. 1546 */ 1547 SEEPROM_OUTB(sd, sd->sd_MS | sd->sd_CS); 1548 if ((adapter_control & CFAUTOTERM) != 0 1549 || (ahc->features & AHC_NEW_TERMCTL) != 0) { 1550 int internal50_present; 1551 int internal68_present; 1552 int externalcable_present; 1553 int eeprom_present; 1554 int enableSEC_low; 1555 int enableSEC_high; 1556 int enablePRI_low; 1557 int enablePRI_high; 1558 int sum; 1559 1560 enableSEC_low = 0; 1561 enableSEC_high = 0; 1562 enablePRI_low = 0; 1563 enablePRI_high = 0; 1564 if ((ahc->features & AHC_NEW_TERMCTL) != 0) { 1565 ahc_new_term_detect(ahc, &enableSEC_low, 1566 &enableSEC_high, 1567 &enablePRI_low, 1568 &enablePRI_high, 1569 &eeprom_present); 1570 if ((adapter_control & CFSEAUTOTERM) == 0) { 1571 if (bootverbose) 1572 printk("%s: Manual SE Termination\n", 1573 ahc_name(ahc)); 1574 enableSEC_low = (adapter_control & CFSELOWTERM); 1575 enableSEC_high = 1576 (adapter_control & CFSEHIGHTERM); 1577 } 1578 if ((adapter_control & CFAUTOTERM) == 0) { 1579 if (bootverbose) 1580 printk("%s: Manual LVD Termination\n", 1581 ahc_name(ahc)); 1582 enablePRI_low = (adapter_control & CFSTERM); 1583 enablePRI_high = (adapter_control & CFWSTERM); 1584 } 1585 /* Make the table calculations below happy */ 1586 internal50_present = 0; 1587 internal68_present = 1; 1588 externalcable_present = 1; 1589 } else if ((ahc->features & AHC_SPIOCAP) != 0) { 1590 aic785X_cable_detect(ahc, &internal50_present, 1591 &externalcable_present, 1592 &eeprom_present); 1593 /* Can never support a wide connector. */ 1594 internal68_present = 0; 1595 } else { 1596 aic787X_cable_detect(ahc, &internal50_present, 1597 &internal68_present, 1598 &externalcable_present, 1599 &eeprom_present); 1600 } 1601 1602 if ((ahc->features & AHC_WIDE) == 0) 1603 internal68_present = 0; 1604 1605 if (bootverbose 1606 && (ahc->features & AHC_ULTRA2) == 0) { 1607 printk("%s: internal 50 cable %s present", 1608 ahc_name(ahc), 1609 internal50_present ? "is":"not"); 1610 1611 if ((ahc->features & AHC_WIDE) != 0) 1612 printk(", internal 68 cable %s present", 1613 internal68_present ? "is":"not"); 1614 printk("\n%s: external cable %s present\n", 1615 ahc_name(ahc), 1616 externalcable_present ? "is":"not"); 1617 } 1618 if (bootverbose) 1619 printk("%s: BIOS eeprom %s present\n", 1620 ahc_name(ahc), eeprom_present ? "is" : "not"); 1621 1622 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) { 1623 /* 1624 * The 50 pin connector is a separate bus, 1625 * so force it to always be terminated. 1626 * In the future, perform current sensing 1627 * to determine if we are in the middle of 1628 * a properly terminated bus. 1629 */ 1630 internal50_present = 0; 1631 } 1632 1633 /* 1634 * Now set the termination based on what 1635 * we found. 1636 * Flash Enable = BRDDAT7 1637 * Secondary High Term Enable = BRDDAT6 1638 * Secondary Low Term Enable = BRDDAT5 (7890) 1639 * Primary High Term Enable = BRDDAT4 (7890) 1640 */ 1641 if ((ahc->features & AHC_ULTRA2) == 0 1642 && (internal50_present != 0) 1643 && (internal68_present != 0) 1644 && (externalcable_present != 0)) { 1645 printk("%s: Illegal cable configuration!!. " 1646 "Only two connectors on the " 1647 "adapter may be used at a " 1648 "time!\n", ahc_name(ahc)); 1649 1650 /* 1651 * Pretend there are no cables in the hope 1652 * that having all of the termination on 1653 * gives us a more stable bus. 1654 */ 1655 internal50_present = 0; 1656 internal68_present = 0; 1657 externalcable_present = 0; 1658 } 1659 1660 if ((ahc->features & AHC_WIDE) != 0 1661 && ((externalcable_present == 0) 1662 || (internal68_present == 0) 1663 || (enableSEC_high != 0))) { 1664 brddat |= BRDDAT6; 1665 if (bootverbose) { 1666 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) 1667 printk("%s: 68 pin termination " 1668 "Enabled\n", ahc_name(ahc)); 1669 else 1670 printk("%s: %sHigh byte termination " 1671 "Enabled\n", ahc_name(ahc), 1672 enableSEC_high ? "Secondary " 1673 : ""); 1674 } 1675 } 1676 1677 sum = internal50_present + internal68_present 1678 + externalcable_present; 1679 if (sum < 2 || (enableSEC_low != 0)) { 1680 if ((ahc->features & AHC_ULTRA2) != 0) 1681 brddat |= BRDDAT5; 1682 else 1683 *sxfrctl1 |= STPWEN; 1684 if (bootverbose) { 1685 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) 1686 printk("%s: 50 pin termination " 1687 "Enabled\n", ahc_name(ahc)); 1688 else 1689 printk("%s: %sLow byte termination " 1690 "Enabled\n", ahc_name(ahc), 1691 enableSEC_low ? "Secondary " 1692 : ""); 1693 } 1694 } 1695 1696 if (enablePRI_low != 0) { 1697 *sxfrctl1 |= STPWEN; 1698 if (bootverbose) 1699 printk("%s: Primary Low Byte termination " 1700 "Enabled\n", ahc_name(ahc)); 1701 } 1702 1703 /* 1704 * Setup STPWEN before setting up the rest of 1705 * the termination per the tech note on the U160 cards. 1706 */ 1707 ahc_outb(ahc, SXFRCTL1, *sxfrctl1); 1708 1709 if (enablePRI_high != 0) { 1710 brddat |= BRDDAT4; 1711 if (bootverbose) 1712 printk("%s: Primary High Byte " 1713 "termination Enabled\n", 1714 ahc_name(ahc)); 1715 } 1716 1717 write_brdctl(ahc, brddat); 1718 1719 } else { 1720 if ((adapter_control & CFSTERM) != 0) { 1721 *sxfrctl1 |= STPWEN; 1722 1723 if (bootverbose) 1724 printk("%s: %sLow byte termination Enabled\n", 1725 ahc_name(ahc), 1726 (ahc->features & AHC_ULTRA2) ? "Primary " 1727 : ""); 1728 } 1729 1730 if ((adapter_control & CFWSTERM) != 0 1731 && (ahc->features & AHC_WIDE) != 0) { 1732 brddat |= BRDDAT6; 1733 if (bootverbose) 1734 printk("%s: %sHigh byte termination Enabled\n", 1735 ahc_name(ahc), 1736 (ahc->features & AHC_ULTRA2) 1737 ? "Secondary " : ""); 1738 } 1739 1740 /* 1741 * Setup STPWEN before setting up the rest of 1742 * the termination per the tech note on the U160 cards. 1743 */ 1744 ahc_outb(ahc, SXFRCTL1, *sxfrctl1); 1745 1746 if ((ahc->features & AHC_WIDE) != 0) 1747 write_brdctl(ahc, brddat); 1748 } 1749 SEEPROM_OUTB(sd, sd->sd_MS); /* Clear CS */ 1750 } 1751 1752 static void 1753 ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low, 1754 int *enableSEC_high, int *enablePRI_low, 1755 int *enablePRI_high, int *eeprom_present) 1756 { 1757 uint8_t brdctl; 1758 1759 /* 1760 * BRDDAT7 = Eeprom 1761 * BRDDAT6 = Enable Secondary High Byte termination 1762 * BRDDAT5 = Enable Secondary Low Byte termination 1763 * BRDDAT4 = Enable Primary high byte termination 1764 * BRDDAT3 = Enable Primary low byte termination 1765 */ 1766 brdctl = read_brdctl(ahc); 1767 *eeprom_present = brdctl & BRDDAT7; 1768 *enableSEC_high = (brdctl & BRDDAT6); 1769 *enableSEC_low = (brdctl & BRDDAT5); 1770 *enablePRI_high = (brdctl & BRDDAT4); 1771 *enablePRI_low = (brdctl & BRDDAT3); 1772 } 1773 1774 static void 1775 aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 1776 int *internal68_present, int *externalcable_present, 1777 int *eeprom_present) 1778 { 1779 uint8_t brdctl; 1780 1781 /* 1782 * First read the status of our cables. 1783 * Set the rom bank to 0 since the 1784 * bank setting serves as a multiplexor 1785 * for the cable detection logic. 1786 * BRDDAT5 controls the bank switch. 1787 */ 1788 write_brdctl(ahc, 0); 1789 1790 /* 1791 * Now read the state of the internal 1792 * connectors. BRDDAT6 is INT50 and 1793 * BRDDAT7 is INT68. 1794 */ 1795 brdctl = read_brdctl(ahc); 1796 *internal50_present = (brdctl & BRDDAT6) ? 0 : 1; 1797 *internal68_present = (brdctl & BRDDAT7) ? 0 : 1; 1798 1799 /* 1800 * Set the rom bank to 1 and determine 1801 * the other signals. 1802 */ 1803 write_brdctl(ahc, BRDDAT5); 1804 1805 /* 1806 * Now read the state of the external 1807 * connectors. BRDDAT6 is EXT68 and 1808 * BRDDAT7 is EPROMPS. 1809 */ 1810 brdctl = read_brdctl(ahc); 1811 *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1; 1812 *eeprom_present = (brdctl & BRDDAT7) ? 1 : 0; 1813 } 1814 1815 static void 1816 aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 1817 int *externalcable_present, int *eeprom_present) 1818 { 1819 uint8_t brdctl; 1820 uint8_t spiocap; 1821 1822 spiocap = ahc_inb(ahc, SPIOCAP); 1823 spiocap &= ~SOFTCMDEN; 1824 spiocap |= EXT_BRDCTL; 1825 ahc_outb(ahc, SPIOCAP, spiocap); 1826 ahc_outb(ahc, BRDCTL, BRDRW|BRDCS); 1827 ahc_flush_device_writes(ahc); 1828 ahc_delay(500); 1829 ahc_outb(ahc, BRDCTL, 0); 1830 ahc_flush_device_writes(ahc); 1831 ahc_delay(500); 1832 brdctl = ahc_inb(ahc, BRDCTL); 1833 *internal50_present = (brdctl & BRDDAT5) ? 0 : 1; 1834 *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1; 1835 *eeprom_present = (ahc_inb(ahc, SPIOCAP) & EEPROM) ? 1 : 0; 1836 } 1837 1838 int 1839 ahc_acquire_seeprom(struct ahc_softc *ahc, struct seeprom_descriptor *sd) 1840 { 1841 int wait; 1842 1843 if ((ahc->features & AHC_SPIOCAP) != 0 1844 && (ahc_inb(ahc, SPIOCAP) & SEEPROM) == 0) 1845 return (0); 1846 1847 /* 1848 * Request access of the memory port. When access is 1849 * granted, SEERDY will go high. We use a 1 second 1850 * timeout which should be near 1 second more than 1851 * is needed. Reason: after the chip reset, there 1852 * should be no contention. 1853 */ 1854 SEEPROM_OUTB(sd, sd->sd_MS); 1855 wait = 1000; /* 1 second timeout in msec */ 1856 while (--wait && ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0)) { 1857 ahc_delay(1000); /* delay 1 msec */ 1858 } 1859 if ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0) { 1860 SEEPROM_OUTB(sd, 0); 1861 return (0); 1862 } 1863 return(1); 1864 } 1865 1866 void 1867 ahc_release_seeprom(struct seeprom_descriptor *sd) 1868 { 1869 /* Release access to the memory port and the serial EEPROM. */ 1870 SEEPROM_OUTB(sd, 0); 1871 } 1872 1873 static void 1874 write_brdctl(struct ahc_softc *ahc, uint8_t value) 1875 { 1876 uint8_t brdctl; 1877 1878 if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) { 1879 brdctl = BRDSTB; 1880 if (ahc->channel == 'B') 1881 brdctl |= BRDCS; 1882 } else if ((ahc->features & AHC_ULTRA2) != 0) { 1883 brdctl = 0; 1884 } else { 1885 brdctl = BRDSTB|BRDCS; 1886 } 1887 ahc_outb(ahc, BRDCTL, brdctl); 1888 ahc_flush_device_writes(ahc); 1889 brdctl |= value; 1890 ahc_outb(ahc, BRDCTL, brdctl); 1891 ahc_flush_device_writes(ahc); 1892 if ((ahc->features & AHC_ULTRA2) != 0) 1893 brdctl |= BRDSTB_ULTRA2; 1894 else 1895 brdctl &= ~BRDSTB; 1896 ahc_outb(ahc, BRDCTL, brdctl); 1897 ahc_flush_device_writes(ahc); 1898 if ((ahc->features & AHC_ULTRA2) != 0) 1899 brdctl = 0; 1900 else 1901 brdctl &= ~BRDCS; 1902 ahc_outb(ahc, BRDCTL, brdctl); 1903 } 1904 1905 static uint8_t 1906 read_brdctl(struct ahc_softc *ahc) 1907 { 1908 uint8_t brdctl; 1909 uint8_t value; 1910 1911 if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) { 1912 brdctl = BRDRW; 1913 if (ahc->channel == 'B') 1914 brdctl |= BRDCS; 1915 } else if ((ahc->features & AHC_ULTRA2) != 0) { 1916 brdctl = BRDRW_ULTRA2; 1917 } else { 1918 brdctl = BRDRW|BRDCS; 1919 } 1920 ahc_outb(ahc, BRDCTL, brdctl); 1921 ahc_flush_device_writes(ahc); 1922 value = ahc_inb(ahc, BRDCTL); 1923 ahc_outb(ahc, BRDCTL, 0); 1924 return (value); 1925 } 1926 1927 static void 1928 ahc_pci_intr(struct ahc_softc *ahc) 1929 { 1930 u_int error; 1931 u_int status1; 1932 1933 error = ahc_inb(ahc, ERROR); 1934 if ((error & PCIERRSTAT) == 0) 1935 return; 1936 1937 status1 = ahc_pci_read_config(ahc->dev_softc, 1938 PCIR_STATUS + 1, /*bytes*/1); 1939 1940 printk("%s: PCI error Interrupt at seqaddr = 0x%x\n", 1941 ahc_name(ahc), 1942 ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8)); 1943 1944 if (status1 & DPE) { 1945 ahc->pci_target_perr_count++; 1946 printk("%s: Data Parity Error Detected during address " 1947 "or write data phase\n", ahc_name(ahc)); 1948 } 1949 if (status1 & SSE) { 1950 printk("%s: Signal System Error Detected\n", ahc_name(ahc)); 1951 } 1952 if (status1 & RMA) { 1953 printk("%s: Received a Master Abort\n", ahc_name(ahc)); 1954 } 1955 if (status1 & RTA) { 1956 printk("%s: Received a Target Abort\n", ahc_name(ahc)); 1957 } 1958 if (status1 & STA) { 1959 printk("%s: Signaled a Target Abort\n", ahc_name(ahc)); 1960 } 1961 if (status1 & DPR) { 1962 printk("%s: Data Parity Error has been reported via PERR#\n", 1963 ahc_name(ahc)); 1964 } 1965 1966 /* Clear latched errors. */ 1967 ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1, 1968 status1, /*bytes*/1); 1969 1970 if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) { 1971 printk("%s: Latched PCIERR interrupt with " 1972 "no status bits set\n", ahc_name(ahc)); 1973 } else { 1974 ahc_outb(ahc, CLRINT, CLRPARERR); 1975 } 1976 1977 if (ahc->pci_target_perr_count > AHC_PCI_TARGET_PERR_THRESH) { 1978 printk( 1979 "%s: WARNING WARNING WARNING WARNING\n" 1980 "%s: Too many PCI parity errors observed as a target.\n" 1981 "%s: Some device on this bus is generating bad parity.\n" 1982 "%s: This is an error *observed by*, not *generated by*, this controller.\n" 1983 "%s: PCI parity error checking has been disabled.\n" 1984 "%s: WARNING WARNING WARNING WARNING\n", 1985 ahc_name(ahc), ahc_name(ahc), ahc_name(ahc), 1986 ahc_name(ahc), ahc_name(ahc), ahc_name(ahc)); 1987 ahc->seqctl |= FAILDIS; 1988 ahc_outb(ahc, SEQCTL, ahc->seqctl); 1989 } 1990 ahc_unpause(ahc); 1991 } 1992 1993 static int 1994 ahc_pci_chip_init(struct ahc_softc *ahc) 1995 { 1996 ahc_outb(ahc, DSCOMMAND0, ahc->bus_softc.pci_softc.dscommand0); 1997 ahc_outb(ahc, DSPCISTATUS, ahc->bus_softc.pci_softc.dspcistatus); 1998 if ((ahc->features & AHC_DT) != 0) { 1999 u_int sfunct; 2000 2001 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE; 2002 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE); 2003 ahc_outb(ahc, OPTIONMODE, ahc->bus_softc.pci_softc.optionmode); 2004 ahc_outw(ahc, TARGCRCCNT, ahc->bus_softc.pci_softc.targcrccnt); 2005 ahc_outb(ahc, SFUNCT, sfunct); 2006 ahc_outb(ahc, CRCCONTROL1, 2007 ahc->bus_softc.pci_softc.crccontrol1); 2008 } 2009 if ((ahc->features & AHC_MULTI_FUNC) != 0) 2010 ahc_outb(ahc, SCBBADDR, ahc->bus_softc.pci_softc.scbbaddr); 2011 2012 if ((ahc->features & AHC_ULTRA2) != 0) 2013 ahc_outb(ahc, DFF_THRSH, ahc->bus_softc.pci_softc.dff_thrsh); 2014 2015 return (ahc_chip_init(ahc)); 2016 } 2017 2018 #ifdef CONFIG_PM 2019 void 2020 ahc_pci_resume(struct ahc_softc *ahc) 2021 { 2022 /* 2023 * We assume that the OS has restored our register 2024 * mappings, etc. Just update the config space registers 2025 * that the OS doesn't know about and rely on our chip 2026 * reset handler to handle the rest. 2027 */ 2028 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, 2029 ahc->bus_softc.pci_softc.devconfig, /*bytes*/4); 2030 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, 2031 ahc->bus_softc.pci_softc.command, /*bytes*/1); 2032 ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME, 2033 ahc->bus_softc.pci_softc.csize_lattime, /*bytes*/1); 2034 if ((ahc->flags & AHC_HAS_TERM_LOGIC) != 0) { 2035 struct seeprom_descriptor sd; 2036 u_int sxfrctl1; 2037 2038 sd.sd_ahc = ahc; 2039 sd.sd_control_offset = SEECTL; 2040 sd.sd_status_offset = SEECTL; 2041 sd.sd_dataout_offset = SEECTL; 2042 2043 ahc_acquire_seeprom(ahc, &sd); 2044 configure_termination(ahc, &sd, 2045 ahc->seep_config->adapter_control, 2046 &sxfrctl1); 2047 ahc_release_seeprom(&sd); 2048 } 2049 } 2050 #endif 2051 2052 static int 2053 ahc_aic785X_setup(struct ahc_softc *ahc) 2054 { 2055 ahc_dev_softc_t pci; 2056 uint8_t rev; 2057 2058 pci = ahc->dev_softc; 2059 ahc->channel = 'A'; 2060 ahc->chip = AHC_AIC7850; 2061 ahc->features = AHC_AIC7850_FE; 2062 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2063 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2064 if (rev >= 1) 2065 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; 2066 ahc->instruction_ram_size = 512; 2067 return (0); 2068 } 2069 2070 static int 2071 ahc_aic7860_setup(struct ahc_softc *ahc) 2072 { 2073 ahc_dev_softc_t pci; 2074 uint8_t rev; 2075 2076 pci = ahc->dev_softc; 2077 ahc->channel = 'A'; 2078 ahc->chip = AHC_AIC7860; 2079 ahc->features = AHC_AIC7860_FE; 2080 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2081 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2082 if (rev >= 1) 2083 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; 2084 ahc->instruction_ram_size = 512; 2085 return (0); 2086 } 2087 2088 static int 2089 ahc_apa1480_setup(struct ahc_softc *ahc) 2090 { 2091 int error; 2092 2093 error = ahc_aic7860_setup(ahc); 2094 if (error != 0) 2095 return (error); 2096 ahc->features |= AHC_REMOVABLE; 2097 return (0); 2098 } 2099 2100 static int 2101 ahc_aic7870_setup(struct ahc_softc *ahc) 2102 { 2103 2104 ahc->channel = 'A'; 2105 ahc->chip = AHC_AIC7870; 2106 ahc->features = AHC_AIC7870_FE; 2107 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2108 ahc->instruction_ram_size = 512; 2109 return (0); 2110 } 2111 2112 static int 2113 ahc_aic7870h_setup(struct ahc_softc *ahc) 2114 { 2115 int error = ahc_aic7870_setup(ahc); 2116 2117 ahc->features |= AHC_HVD; 2118 2119 return error; 2120 } 2121 2122 static int 2123 ahc_aha394X_setup(struct ahc_softc *ahc) 2124 { 2125 int error; 2126 2127 error = ahc_aic7870_setup(ahc); 2128 if (error == 0) 2129 error = ahc_aha394XX_setup(ahc); 2130 return (error); 2131 } 2132 2133 static int 2134 ahc_aha394Xh_setup(struct ahc_softc *ahc) 2135 { 2136 int error = ahc_aha394X_setup(ahc); 2137 2138 ahc->features |= AHC_HVD; 2139 2140 return error; 2141 } 2142 2143 static int 2144 ahc_aha398X_setup(struct ahc_softc *ahc) 2145 { 2146 int error; 2147 2148 error = ahc_aic7870_setup(ahc); 2149 if (error == 0) 2150 error = ahc_aha398XX_setup(ahc); 2151 return (error); 2152 } 2153 2154 static int 2155 ahc_aha494X_setup(struct ahc_softc *ahc) 2156 { 2157 int error; 2158 2159 error = ahc_aic7870_setup(ahc); 2160 if (error == 0) 2161 error = ahc_aha494XX_setup(ahc); 2162 return (error); 2163 } 2164 2165 static int 2166 ahc_aha494Xh_setup(struct ahc_softc *ahc) 2167 { 2168 int error = ahc_aha494X_setup(ahc); 2169 2170 ahc->features |= AHC_HVD; 2171 2172 return error; 2173 } 2174 2175 static int 2176 ahc_aic7880_setup(struct ahc_softc *ahc) 2177 { 2178 ahc_dev_softc_t pci; 2179 uint8_t rev; 2180 2181 pci = ahc->dev_softc; 2182 ahc->channel = 'A'; 2183 ahc->chip = AHC_AIC7880; 2184 ahc->features = AHC_AIC7880_FE; 2185 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 2186 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2187 if (rev >= 1) { 2188 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; 2189 } else { 2190 ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2191 } 2192 ahc->instruction_ram_size = 512; 2193 return (0); 2194 } 2195 2196 static int 2197 ahc_aic7880h_setup(struct ahc_softc *ahc) 2198 { 2199 int error = ahc_aic7880_setup(ahc); 2200 2201 ahc->features |= AHC_HVD; 2202 2203 return error; 2204 } 2205 2206 2207 static int 2208 ahc_aha2940Pro_setup(struct ahc_softc *ahc) 2209 { 2210 2211 ahc->flags |= AHC_INT50_SPEEDFLEX; 2212 return (ahc_aic7880_setup(ahc)); 2213 } 2214 2215 static int 2216 ahc_aha394XU_setup(struct ahc_softc *ahc) 2217 { 2218 int error; 2219 2220 error = ahc_aic7880_setup(ahc); 2221 if (error == 0) 2222 error = ahc_aha394XX_setup(ahc); 2223 return (error); 2224 } 2225 2226 static int 2227 ahc_aha394XUh_setup(struct ahc_softc *ahc) 2228 { 2229 int error = ahc_aha394XU_setup(ahc); 2230 2231 ahc->features |= AHC_HVD; 2232 2233 return error; 2234 } 2235 2236 static int 2237 ahc_aha398XU_setup(struct ahc_softc *ahc) 2238 { 2239 int error; 2240 2241 error = ahc_aic7880_setup(ahc); 2242 if (error == 0) 2243 error = ahc_aha398XX_setup(ahc); 2244 return (error); 2245 } 2246 2247 static int 2248 ahc_aic7890_setup(struct ahc_softc *ahc) 2249 { 2250 ahc_dev_softc_t pci; 2251 uint8_t rev; 2252 2253 pci = ahc->dev_softc; 2254 ahc->channel = 'A'; 2255 ahc->chip = AHC_AIC7890; 2256 ahc->features = AHC_AIC7890_FE; 2257 ahc->flags |= AHC_NEWEEPROM_FMT; 2258 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2259 if (rev == 0) 2260 ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG; 2261 ahc->instruction_ram_size = 768; 2262 return (0); 2263 } 2264 2265 static int 2266 ahc_aic7892_setup(struct ahc_softc *ahc) 2267 { 2268 2269 ahc->channel = 'A'; 2270 ahc->chip = AHC_AIC7892; 2271 ahc->features = AHC_AIC7892_FE; 2272 ahc->flags |= AHC_NEWEEPROM_FMT; 2273 ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG; 2274 ahc->instruction_ram_size = 1024; 2275 return (0); 2276 } 2277 2278 static int 2279 ahc_aic7895_setup(struct ahc_softc *ahc) 2280 { 2281 ahc_dev_softc_t pci; 2282 uint8_t rev; 2283 2284 pci = ahc->dev_softc; 2285 ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A'; 2286 /* 2287 * The 'C' revision of the aic7895 has a few additional features. 2288 */ 2289 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2290 if (rev >= 4) { 2291 ahc->chip = AHC_AIC7895C; 2292 ahc->features = AHC_AIC7895C_FE; 2293 } else { 2294 u_int command; 2295 2296 ahc->chip = AHC_AIC7895; 2297 ahc->features = AHC_AIC7895_FE; 2298 2299 /* 2300 * The BIOS disables the use of MWI transactions 2301 * since it does not have the MWI bug work around 2302 * we have. Disabling MWI reduces performance, so 2303 * turn it on again. 2304 */ 2305 command = ahc_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1); 2306 command |= PCIM_CMD_MWRICEN; 2307 ahc_pci_write_config(pci, PCIR_COMMAND, command, /*bytes*/1); 2308 ahc->bugs |= AHC_PCI_MWI_BUG; 2309 } 2310 /* 2311 * XXX Does CACHETHEN really not work??? What about PCI retry? 2312 * on C level chips. Need to test, but for now, play it safe. 2313 */ 2314 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG 2315 | AHC_CACHETHEN_BUG; 2316 2317 #if 0 2318 uint32_t devconfig; 2319 2320 /* 2321 * Cachesize must also be zero due to stray DAC 2322 * problem when sitting behind some bridges. 2323 */ 2324 ahc_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1); 2325 devconfig = ahc_pci_read_config(pci, DEVCONFIG, /*bytes*/1); 2326 devconfig |= MRDCEN; 2327 ahc_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1); 2328 #endif 2329 ahc->flags |= AHC_NEWEEPROM_FMT; 2330 ahc->instruction_ram_size = 512; 2331 return (0); 2332 } 2333 2334 static int 2335 ahc_aic7895h_setup(struct ahc_softc *ahc) 2336 { 2337 int error = ahc_aic7895_setup(ahc); 2338 2339 ahc->features |= AHC_HVD; 2340 2341 return error; 2342 } 2343 2344 static int 2345 ahc_aic7896_setup(struct ahc_softc *ahc) 2346 { 2347 ahc_dev_softc_t pci; 2348 2349 pci = ahc->dev_softc; 2350 ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A'; 2351 ahc->chip = AHC_AIC7896; 2352 ahc->features = AHC_AIC7896_FE; 2353 ahc->flags |= AHC_NEWEEPROM_FMT; 2354 ahc->bugs |= AHC_CACHETHEN_DIS_BUG; 2355 ahc->instruction_ram_size = 768; 2356 return (0); 2357 } 2358 2359 static int 2360 ahc_aic7899_setup(struct ahc_softc *ahc) 2361 { 2362 ahc_dev_softc_t pci; 2363 2364 pci = ahc->dev_softc; 2365 ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A'; 2366 ahc->chip = AHC_AIC7899; 2367 ahc->features = AHC_AIC7899_FE; 2368 ahc->flags |= AHC_NEWEEPROM_FMT; 2369 ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG; 2370 ahc->instruction_ram_size = 1024; 2371 return (0); 2372 } 2373 2374 static int 2375 ahc_aha29160C_setup(struct ahc_softc *ahc) 2376 { 2377 int error; 2378 2379 error = ahc_aic7899_setup(ahc); 2380 if (error != 0) 2381 return (error); 2382 ahc->features |= AHC_REMOVABLE; 2383 return (0); 2384 } 2385 2386 static int 2387 ahc_raid_setup(struct ahc_softc *ahc) 2388 { 2389 printk("RAID functionality unsupported\n"); 2390 return (ENXIO); 2391 } 2392 2393 static int 2394 ahc_aha394XX_setup(struct ahc_softc *ahc) 2395 { 2396 ahc_dev_softc_t pci; 2397 2398 pci = ahc->dev_softc; 2399 switch (ahc_get_pci_slot(pci)) { 2400 case AHC_394X_SLOT_CHANNEL_A: 2401 ahc->channel = 'A'; 2402 break; 2403 case AHC_394X_SLOT_CHANNEL_B: 2404 ahc->channel = 'B'; 2405 break; 2406 default: 2407 printk("adapter at unexpected slot %d\n" 2408 "unable to map to a channel\n", 2409 ahc_get_pci_slot(pci)); 2410 ahc->channel = 'A'; 2411 } 2412 return (0); 2413 } 2414 2415 static int 2416 ahc_aha398XX_setup(struct ahc_softc *ahc) 2417 { 2418 ahc_dev_softc_t pci; 2419 2420 pci = ahc->dev_softc; 2421 switch (ahc_get_pci_slot(pci)) { 2422 case AHC_398X_SLOT_CHANNEL_A: 2423 ahc->channel = 'A'; 2424 break; 2425 case AHC_398X_SLOT_CHANNEL_B: 2426 ahc->channel = 'B'; 2427 break; 2428 case AHC_398X_SLOT_CHANNEL_C: 2429 ahc->channel = 'C'; 2430 break; 2431 default: 2432 printk("adapter at unexpected slot %d\n" 2433 "unable to map to a channel\n", 2434 ahc_get_pci_slot(pci)); 2435 ahc->channel = 'A'; 2436 break; 2437 } 2438 ahc->flags |= AHC_LARGE_SEEPROM; 2439 return (0); 2440 } 2441 2442 static int 2443 ahc_aha494XX_setup(struct ahc_softc *ahc) 2444 { 2445 ahc_dev_softc_t pci; 2446 2447 pci = ahc->dev_softc; 2448 switch (ahc_get_pci_slot(pci)) { 2449 case AHC_494X_SLOT_CHANNEL_A: 2450 ahc->channel = 'A'; 2451 break; 2452 case AHC_494X_SLOT_CHANNEL_B: 2453 ahc->channel = 'B'; 2454 break; 2455 case AHC_494X_SLOT_CHANNEL_C: 2456 ahc->channel = 'C'; 2457 break; 2458 case AHC_494X_SLOT_CHANNEL_D: 2459 ahc->channel = 'D'; 2460 break; 2461 default: 2462 printk("adapter at unexpected slot %d\n" 2463 "unable to map to a channel\n", 2464 ahc_get_pci_slot(pci)); 2465 ahc->channel = 'A'; 2466 } 2467 ahc->flags |= AHC_LARGE_SEEPROM; 2468 return (0); 2469 } 2470