target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/mv_hal/pci-if/pci_util/mvPciUtils.c

   1 /*******************************************************************************
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  37 modify this File under the following licensing terms.
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  49         used to endorse or promote products derived from this software without
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  51
  52 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  53 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  54 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  55 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  56 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  57 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  58 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  59 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  60 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  61 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  62
  63 *******************************************************************************/
  64
  65 /* includes */
  66 #include "mvPciUtils.h"
  67
  68 #include "ctrlEnv/mvCtrlEnvLib.h"
  69
  70 /* #define MV_DEBUG */
  71 /* defines  */
  72 #ifdef MV_DEBUG
  73         #define DB(x)   x
  74         #define mvOsPrintf printf
  75 #else
  76         #define DB(x)
  77 #endif
  78
  79 /*
  80 This module only support scanning of Header type 00h of pci devices
  81 There is no suppotr for Header type 01h of pci devices  ( PCI bridges )
  82 */
  83
  84
  85 static MV_STATUS pciDetectDevice(MV_U32 pciIf,
  86                                                                  MV_U32 bus,
  87                                                                  MV_U32 dev,
  88                                                                  MV_U32 func,
  89                                                                  MV_PCI_DEVICE *pPciAgent);
  90
  91 static MV_U32 pciDetectDeviceBars(MV_U32 pciIf,
  92                                                                         MV_U32 bus,
  93                                                                         MV_U32 dev,
  94                                                                         MV_U32 func,
  95                                                                         MV_PCI_DEVICE *pPciAgent);
  96
  97
  98
  99
 100
 101
 102 /*******************************************************************************
 103 * mvPciScan - Scan a PCI interface bus
 104 *
 105 * DESCRIPTION:
 106 * Performs a full scan on a PCI interface and returns all possible details
 107 * on the agents found on the bus.
 108 *
 109 * INPUT:
 110 *       pciIf       - PCI Interface
 111 *       pPciAgents      - Pointer to an Array of the pci agents to be detected
 112 *               pPciAgentsNum - pPciAgents array maximum number of elements
 113 *
 114 * OUTPUT:
 115 *       pPciAgents - Array of the pci agents detected on the bus
 116 *               pPciAgentsNum - Number of pci agents detected on the bus
 117 *
 118 * RETURN:
 119 *       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
 120 *
 121 *******************************************************************************/
 122
 123 MV_STATUS mvPciScan(MV_U32 pciIf,
 124                                         MV_PCI_DEVICE *pPciAgents,
 125                                         MV_U32 *pPciAgentsNum)
 126 {
 127
 128         MV_U32 devIndex,funcIndex=0,busIndex=0,detectedDevNum=0;
 129     MV_U32 localBus=mvPciIfLocalBusNumGet(pciIf);
 130     MV_PCI_DEVICE *pPciDevice;
 131         MV_PCI_DEVICE *pMainDevice;
 132
 133         DB(mvOsPrintf("mvPciScan: PCI interface num %d\n", pciIf));
 134         /* Parameter checking   */
 135         if (pciIf >= mvCtrlPexMaxIfGet())
 136         {
 137                 DB(mvOsPrintf("mvPciScan: ERR. Invalid PCI interface num %d\n", pciIf));
 138                 return MV_BAD_PARAM;
 139         }
 140         if (NULL == pPciAgents)
 141         {
 142                 DB(mvOsPrintf("mvPciScan: ERR. pPciAgents=NULL \n"));
 143                 return MV_BAD_PARAM;
 144         }
 145         if (NULL == pPciAgentsNum)
 146         {
 147                 DB(mvOsPrintf("mvPciScan: ERR. pPciAgentsNum=NULL \n"));
 148                 return MV_BAD_PARAM;
 149         }
 150
 151
 152         DB(mvOsPrintf("mvPciScan: PCI interface num %d mvPciMasterEnable\n", pciIf));
 153         /* Master enable the MV PCI master */
 154         if (MV_OK != mvPciIfMasterEnable(pciIf,MV_TRUE))
 155         {
 156                 DB(mvOsPrintf("mvPciScan: ERR. mvPciMasterEnable failed  \n"));
 157                 return MV_ERROR;
 158
 159         }
 160
 161         DB(mvOsPrintf("mvPciScan: PCI interface num scan%d\n", pciIf));
 162
 163         /* go through all busses */
 164         for (busIndex=localBus ; busIndex < MAX_PCI_BUSSES ; busIndex++)
 165         {
 166                 /* go through all possible devices on the local bus */
 167                 for (devIndex=0 ; devIndex < MAX_PCI_DEVICES ; devIndex++)
 168                 {
 169                         /* always start with function equal to zero */
 170                         funcIndex=0;
 171
 172                         pPciDevice=&pPciAgents[detectedDevNum];
 173                         DB(mvOsPrintf("mvPciScan: PCI interface num scan%d:%d\n", busIndex, devIndex));
 174
 175                         if (MV_ERROR == pciDetectDevice(pciIf,
 176                                                                                    busIndex,
 177                                                                                    devIndex,
 178                                                                                    funcIndex,
 179                                                                                    pPciDevice))
 180                         {
 181                                 /* no device detected , try the next address */
 182                                 continue;
 183                         }
 184
 185                         /* We are here ! means we have detected a device*/
 186                         /* always we start with only one function per device */
 187                         pMainDevice = pPciDevice;
 188                         pPciDevice->funtionsNum = 1;
 189
 190
 191                         /* move on */
 192                         detectedDevNum++;
 193
 194
 195                         /* check if we have no more room for a new device */
 196                         if (detectedDevNum == *pPciAgentsNum)
 197                         {
 198                                 DB(mvOsPrintf("mvPciScan: ERR. array passed too small \n"));
 199                                 return MV_ERROR;
 200                         }
 201
 202                         /* check the detected device if it is a multi functional device then
 203                         scan all device functions*/
 204                         if (pPciDevice->isMultiFunction == MV_TRUE)
 205                         {
 206                                 /* start with function number 1 because we have already detected
 207                                 function 0 */
 208                                 for (funcIndex=1; funcIndex<MAX_PCI_FUNCS ; funcIndex++)
 209                                 {
 210                                         pPciDevice=&pPciAgents[detectedDevNum];
 211
 212                                         if (MV_ERROR == pciDetectDevice(pciIf,
 213                                                                                                    busIndex,
 214                                                                                                    devIndex,
 215                                                                                                    funcIndex,
 216                                                                                                    pPciDevice))
 217                                         {
 218                                                 /* no device detected means no more functions !*/
 219                                                 continue;
 220                                         }
 221                                         /* We are here ! means we have detected a device */
 222
 223                                         /* move on */
 224                                         pMainDevice->funtionsNum++;
 225                                         detectedDevNum++;
 226
 227                                         /* check if we have no more room for a new device */
 228                                         if (detectedDevNum == *pPciAgentsNum)
 229                                         {
 230                                                 DB(mvOsPrintf("mvPciScan: ERR. Array too small\n"));
 231                                                 return MV_ERROR;
 232                                         }
 233
 234
 235                                 }
 236                         }
 237
 238                 }
 239
 240         }
 241
 242         /* return the number of devices actually detected on the bus ! */
 243         *pPciAgentsNum = detectedDevNum;
 244
 245         return MV_OK;
 246
 247 }
 248
 249
 250 /*******************************************************************************
 251 * pciDetectDevice - Detect a pci device parameters
 252 *
 253 * DESCRIPTION:
 254 *       This function detect if a pci agent exist on certain address !
 255 *   and if exists then it fills all possible information on the
 256 *   agent
 257 *
 258 * INPUT:
 259 *       pciIf       - PCI Interface
 260 *               bus             -       Bus number
 261 *               dev             -       Device number
 262 *               func    -       Function number
 263 *
 264 *
 265 *
 266 * OUTPUT:
 267 *       pPciAgent - pointer to the pci agent filled with its information
 268 *
 269 * RETURN:
 270 *       MV_ERROR if no device , MV_OK otherwise
 271 *
 272 *******************************************************************************/
 273
 274 static MV_STATUS pciDetectDevice(MV_U32 pciIf,
 275                                                                  MV_U32 bus,
 276                                                                  MV_U32 dev,
 277                                                                  MV_U32 func,
 278                                                                  MV_PCI_DEVICE *pPciAgent)
 279 {
 280         MV_U32 pciData;
 281
 282         /* no Parameters checking ! because it is static function and it is assumed
 283         that all parameters were checked in the calling function */
 284
 285
 286         /* Try read the PCI Vendor ID and Device ID */
 287
 288         /*  We will scan only ourselves and the PCI slots that exist on the
 289                 board, because we may have a case that we have one slot that has
 290                 a Cardbus connector, and because CardBus answers all IDsels we want
 291                 to scan only this slot and ourseleves.
 292
 293         */
 294         #if defined(MV_INCLUDE_PCI)
 295         if ((PCI_IF_TYPE_CONVEN_PCIX == mvPciIfTypeGet(pciIf)) &&
 296                                         (DB_88F5181_DDR1_PRPMC != mvBoardIdGet()) &&
 297                                         (DB_88F5181_DDR1_PEXPCI != mvBoardIdGet()) &&
 298                                         (DB_88F5181_DDR1_MNG != mvBoardIdGet()))
 299         {
 300
 301                         if (mvBoardIsOurPciSlot(bus, dev) == MV_FALSE)
 302                         {
 303                                 return MV_ERROR;
 304                         }
 305         }
 306         #endif /* defined(MV_INCLUDE_PCI) */
 307
 308         pciData = mvPciIfConfigRead(pciIf, bus,dev,func, PCI_DEVICE_AND_VENDOR_ID);
 309
 310         if (PCI_ERROR_CODE == pciData)
 311         {
 312                 /* no device exist */
 313                 return MV_ERROR;
 314         }
 315
 316         /* we are here ! means a device is detected */
 317
 318         /* fill basic information */
 319         pPciAgent->busNumber=bus;
 320         pPciAgent->deviceNum=dev;
 321         pPciAgent->function=func;
 322
 323         /* Fill the PCI Vendor ID and Device ID */
 324
 325         pPciAgent->venID = (pciData & PDVIR_VEN_ID_MASK) >> PDVIR_VEN_ID_OFFS;
 326         pPciAgent->deviceID = (pciData & PDVIR_DEV_ID_MASK) >> PDVIR_DEV_ID_OFFS;
 327
 328         /* Read Status and command */
 329         pciData = mvPciIfConfigRead(pciIf,
 330                                                           bus,dev,func,
 331                                                           PCI_STATUS_AND_COMMAND);
 332
 333
 334         /* Fill related Status and Command information*/
 335
 336         if (pciData & PSCR_TAR_FAST_BB)
 337         {
 338                 pPciAgent->isFastB2BCapable = MV_TRUE;
 339         }
 340         else
 341         {
 342                 pPciAgent->isFastB2BCapable = MV_FALSE;
 343         }
 344
 345         if (pciData & PSCR_CAP_LIST)
 346         {
 347                 pPciAgent->isCapListSupport=MV_TRUE;
 348         }
 349         else
 350         {
 351                 pPciAgent->isCapListSupport=MV_FALSE;
 352         }
 353
 354         if (pciData & PSCR_66MHZ_EN)
 355         {
 356                 pPciAgent->is66MHZCapable=MV_TRUE;
 357         }
 358         else
 359         {
 360                 pPciAgent->is66MHZCapable=MV_FALSE;
 361         }
 362
 363         /* Read Class Code and Revision */
 364         pciData = mvPciIfConfigRead(pciIf,
 365                                                           bus,dev,func,
 366                                                           PCI_CLASS_CODE_AND_REVISION_ID);
 367
 368
 369         pPciAgent->baseClassCode =
 370                 (pciData & PCCRIR_BASE_CLASS_MASK) >> PCCRIR_BASE_CLASS_OFFS;
 371
 372         pPciAgent->subClassCode =
 373                 (pciData & PCCRIR_SUB_CLASS_MASK) >> PCCRIR_SUB_CLASS_OFFS;
 374
 375         pPciAgent->progIf =
 376                 (pciData & PCCRIR_PROGIF_MASK) >> PCCRIR_PROGIF_OFFS;
 377
 378         pPciAgent->revisionID =
 379                 (pciData & PCCRIR_REVID_MASK) >> PCCRIR_REVID_OFFS;
 380
 381         /* Read  PCI_BIST_HDR_TYPE_LAT_TMR_CACHE_LINE */
 382         pciData = mvPciIfConfigRead(pciIf,
 383                                                           bus,dev,func,
 384                                                           PCI_BIST_HDR_TYPE_LAT_TMR_CACHE_LINE);
 385
 386
 387
 388         pPciAgent->pciCacheLine=
 389                 (pciData & PBHTLTCLR_CACHELINE_MASK ) >> PBHTLTCLR_CACHELINE_OFFS;
 390         pPciAgent->pciLatencyTimer=
 391                 (pciData & PBHTLTCLR_LATTIMER_MASK) >> PBHTLTCLR_LATTIMER_OFFS;
 392
 393         switch (pciData & PBHTLTCLR_HEADER_MASK)
 394         {
 395         case PBHTLTCLR_HEADER_STANDARD:
 396
 397                 pPciAgent->pciHeader=MV_PCI_STANDARD;
 398                 break;
 399         case PBHTLTCLR_HEADER_PCI2PCI_BRIDGE:
 400
 401                 pPciAgent->pciHeader=MV_PCI_PCI2PCI_BRIDGE;
 402                 break;
 403
 404         }
 405
 406         if (pciData & PBHTLTCLR_MULTI_FUNC)
 407         {
 408                 pPciAgent->isMultiFunction=MV_TRUE;
 409         }
 410         else
 411         {
 412                 pPciAgent->isMultiFunction=MV_FALSE;
 413         }
 414
 415         if (pciData & PBHTLTCLR_BISTCAP)
 416         {
 417                 pPciAgent->isBISTCapable=MV_TRUE;
 418         }
 419         else
 420         {
 421                 pPciAgent->isBISTCapable=MV_FALSE;
 422         }
 423
 424
 425         /* read this device pci bars */
 426
 427         pciDetectDeviceBars(pciIf,
 428                                           bus,dev,func,
 429                                          pPciAgent);
 430
 431
 432         /* check if we are bridge*/
 433         if ((pPciAgent->baseClassCode == PCI_BRIDGE_CLASS)&&
 434                 (pPciAgent->subClassCode == P2P_BRIDGE_SUB_CLASS_CODE))
 435         {
 436
 437                 /* Read  P2P_BUSSES_NUM */
 438                 pciData = mvPciIfConfigRead(pciIf,
 439                                                                   bus,dev,func,
 440                                                                   P2P_BUSSES_NUM);
 441
 442                 pPciAgent->p2pPrimBusNum =
 443                         (pciData & PBM_PRIME_BUS_NUM_MASK) >> PBM_PRIME_BUS_NUM_OFFS;
 444
 445                 pPciAgent->p2pSecBusNum =
 446                         (pciData & PBM_SEC_BUS_NUM_MASK) >> PBM_SEC_BUS_NUM_OFFS;
 447
 448                 pPciAgent->p2pSubBusNum =
 449                         (pciData & PBM_SUB_BUS_NUM_MASK) >> PBM_SUB_BUS_NUM_OFFS;
 450
 451                 pPciAgent->p2pSecLatencyTimer =
 452                         (pciData & PBM_SEC_LAT_TMR_MASK) >> PBM_SEC_LAT_TMR_OFFS;
 453
 454                 /* Read  P2P_IO_BASE_LIMIT_SEC_STATUS */
 455                 pciData = mvPciIfConfigRead(pciIf,
 456                                                                   bus,dev,func,
 457                                                                   P2P_IO_BASE_LIMIT_SEC_STATUS);
 458
 459                 pPciAgent->p2pSecStatus =
 460                         (pciData & PIBLSS_SEC_STATUS_MASK) >> PIBLSS_SEC_STATUS_OFFS;
 461
 462
 463                 pPciAgent->p2pIObase =
 464                         (pciData & PIBLSS_IO_BASE_MASK) << PIBLSS_IO_LIMIT_OFFS;
 465
 466                 /* clear low address (should be zero)*/
 467                 pPciAgent->p2pIObase &= PIBLSS_HIGH_ADDR_MASK;
 468
 469                 pPciAgent->p2pIOLimit =
 470                         (pciData & PIBLSS_IO_LIMIT_MASK);
 471
 472                 /* fill low address with 0xfff */
 473                 pPciAgent->p2pIOLimit |= PIBLSS_LOW_ADDR_MASK;
 474
 475
 476                 switch ((pciData & PIBLSS_ADD_CAP_MASK) >> PIBLSS_ADD_CAP_OFFS)
 477                 {
 478                 case PIBLSS_ADD_CAP_16BIT:
 479
 480                         pPciAgent->bIO32 = MV_FALSE;
 481
 482                         break;
 483                 case PIBLSS_ADD_CAP_32BIT:
 484
 485                         pPciAgent->bIO32 = MV_TRUE;
 486
 487                         /* Read  P2P_IO_BASE_LIMIT_UPPER_16 */
 488                         pciData = mvPciIfConfigRead(pciIf,
 489                                                                           bus,dev,func,
 490                                                                           P2P_IO_BASE_LIMIT_UPPER_16);
 491
 492                         pPciAgent->p2pIObase |=
 493                                 (pciData & PRBU_IO_UPP_BASE_MASK) << PRBU_IO_UPP_LIMIT_OFFS;
 494
 495
 496                         pPciAgent->p2pIOLimit |=
 497                                 (pciData & PRBU_IO_UPP_LIMIT_MASK);
 498
 499                         break;
 500
 501                 }
 502
 503
 504                 /* Read  P2P_MEM_BASE_LIMIT */
 505                 pciData = mvPciIfConfigRead(pciIf,
 506                                                                   bus,dev,func,
 507                                                                   P2P_MEM_BASE_LIMIT);
 508
 509                 pPciAgent->p2pMemBase =
 510                         (pciData & PMBL_MEM_BASE_MASK) << PMBL_MEM_LIMIT_OFFS;
 511
 512                 /* clear low address */
 513                 pPciAgent->p2pMemBase &= PMBL_HIGH_ADDR_MASK;
 514
 515                 pPciAgent->p2pMemLimit =
 516                         (pciData & PMBL_MEM_LIMIT_MASK);
 517
 518                 /* add 0xfffff */
 519                 pPciAgent->p2pMemLimit |= PMBL_LOW_ADDR_MASK;
 520
 521
 522                 /* Read  P2P_PREF_MEM_BASE_LIMIT */
 523                 pciData = mvPciIfConfigRead(pciIf,
 524                                                                   bus,dev,func,
 525                                                                   P2P_PREF_MEM_BASE_LIMIT);
 526
 527
 528                 pPciAgent->p2pPrefMemBase =
 529                         (pciData & PRMBL_PREF_MEM_BASE_MASK) << PRMBL_PREF_MEM_LIMIT_OFFS;
 530
 531                 /* get high address only */
 532                 pPciAgent->p2pPrefMemBase &= PRMBL_HIGH_ADDR_MASK;
 533
 534
 535
 536                 pPciAgent->p2pPrefMemLimit =
 537                         (pciData & PRMBL_PREF_MEM_LIMIT_MASK);
 538
 539                 /* add 0xfffff */
 540                 pPciAgent->p2pPrefMemLimit |= PRMBL_LOW_ADDR_MASK;
 541
 542                 switch (pciData & PRMBL_ADD_CAP_MASK)
 543                 {
 544                 case PRMBL_ADD_CAP_32BIT:
 545
 546                         pPciAgent->bPrefMem64 = MV_FALSE;
 547
 548                         /* Read  P2P_PREF_BASE_UPPER_32 */
 549                         pPciAgent->p2pPrefBaseUpper32Bits = 0;
 550
 551                         /* Read  P2P_PREF_LIMIT_UPPER_32 */
 552                         pPciAgent->p2pPrefLimitUpper32Bits = 0;
 553
 554                         break;
 555                 case PRMBL_ADD_CAP_64BIT:
 556
 557                         pPciAgent->bPrefMem64 = MV_TRUE;
 558
 559                         /* Read  P2P_PREF_BASE_UPPER_32 */
 560                         pPciAgent->p2pPrefBaseUpper32Bits = mvPciIfConfigRead(pciIf,
 561                                                                           bus,dev,func,
 562                                                                           P2P_PREF_BASE_UPPER_32);
 563
 564                         /* Read  P2P_PREF_LIMIT_UPPER_32 */
 565                         pPciAgent->p2pPrefLimitUpper32Bits = mvPciIfConfigRead(pciIf,
 566                                                                           bus,dev,func,
 567                                                                           P2P_PREF_LIMIT_UPPER_32);
 568
 569                         break;
 570
 571                 }
 572
 573         }
 574         else /* no bridge */
 575         {
 576                 /* Read  PCI_SUBSYS_ID_AND_SUBSYS_VENDOR_ID */
 577                 pciData = mvPciIfConfigRead(pciIf,
 578                                                                   bus,dev,func,
 579                                                                   PCI_SUBSYS_ID_AND_SUBSYS_VENDOR_ID);
 580
 581
 582                 pPciAgent->subSysVenID =
 583                         (pciData & PSISVIR_VENID_MASK) >> PSISVIR_VENID_OFFS;
 584                 pPciAgent->subSysID =
 585                         (pciData & PSISVIR_DEVID_MASK) >> PSISVIR_DEVID_OFFS;
 586
 587
 588                 /* Read  PCI_EXPANSION_ROM_BASE_ADDR_REG */
 589                 pciData = mvPciIfConfigRead(pciIf,
 590                                                                   bus,dev,func,
 591                                                                   PCI_EXPANSION_ROM_BASE_ADDR_REG);
 592
 593
 594                 if (pciData & PERBAR_EXPROMEN)
 595                 {
 596                         pPciAgent->isExpRom = MV_TRUE;
 597                 }
 598                 else
 599                 {
 600                         pPciAgent->isExpRom = MV_FALSE;
 601                 }
 602
 603                 pPciAgent->expRomAddr =
 604                         (pciData & PERBAR_BASE_MASK) >> PERBAR_BASE_OFFS;
 605
 606         }
 607
 608
 609         if (MV_TRUE == pPciAgent->isCapListSupport)
 610         {
 611                 /* Read  PCI_CAPABILTY_LIST_POINTER */
 612                 pciData = mvPciIfConfigRead(pciIf,
 613                                                                   bus,dev,func,
 614                                                                   PCI_CAPABILTY_LIST_POINTER);
 615
 616                 pPciAgent->capListPointer =
 617                         (pciData & PCLPR_CAPPTR_MASK) >> PCLPR_CAPPTR_OFFS;
 618
 619         }
 620
 621         /* Read  PCI_INTERRUPT_PIN_AND_LINE */
 622         pciData = mvPciIfConfigRead(pciIf,
 623                                                           bus,dev,func,
 624                                                           PCI_INTERRUPT_PIN_AND_LINE);
 625
 626
 627         pPciAgent->irqLine=
 628                 (pciData & PIPLR_INTLINE_MASK) >> PIPLR_INTLINE_OFFS;
 629
 630         pPciAgent->intPin=
 631                 (MV_PCI_INT_PIN)(pciData & PIPLR_INTPIN_MASK) >> PIPLR_INTPIN_OFFS;
 632
 633         pPciAgent->minGrant=
 634                 (pciData & PIPLR_MINGRANT_MASK) >> PIPLR_MINGRANT_OFFS;
 635         pPciAgent->maxLatency=
 636                 (pciData & PIPLR_MAXLATEN_MASK) >> PIPLR_MAXLATEN_OFFS;
 637
 638         mvPciClassNameGet(pPciAgent->baseClassCode,
 639                                           (MV_8 *)pPciAgent->type);
 640
 641         return MV_OK;
 642
 643
 644 }
 645
 646 /*******************************************************************************
 647 * pciDetectDeviceBars - Detect a pci device bars
 648 *
 649 * DESCRIPTION:
 650 *       This function detects all pci agent bars
 651 *
 652 * INPUT:
 653 *       pciIf       - PCI Interface
 654 *               bus             -       Bus number
 655 *               dev             -       Device number
 656 *               func    -       Function number
 657 *
 658 *
 659 *
 660 * OUTPUT:
 661 *       pPciAgent - pointer to the pci agent filled with its information
 662 *
 663 * RETURN:
 664 *       detected bars number
 665 *
 666 *******************************************************************************/
 667 static MV_U32 pciDetectDeviceBars(MV_U32 pciIf,
 668                                                                         MV_U32 bus,
 669                                                                         MV_U32 dev,
 670                                                                         MV_U32 func,
 671                                                                         MV_PCI_DEVICE *pPciAgent)
 672 {
 673         MV_U32 pciData,barIndex,detectedBar=0;
 674         MV_U32 tmpBaseHigh=0,tmpBaseLow=0;
 675         MV_U32 pciMaxBars=0;
 676
 677         pPciAgent->barsNum=0;
 678
 679         /* check if we are bridge*/
 680         if ((pPciAgent->baseClassCode == PCI_BRIDGE_CLASS)&&
 681                 (pPciAgent->subClassCode == P2P_BRIDGE_SUB_CLASS_CODE))
 682         {
 683                 pciMaxBars = 2;
 684         }
 685         else /* no bridge */
 686         {
 687                 pciMaxBars = 6;
 688         }
 689
 690         /* read this device pci bars */
 691         for (barIndex = 0 ; barIndex < pciMaxBars ; barIndex++ )
 692         {
 693                 /* Read  PCI_MEMORY_BAR_BASE_ADDR */
 694                 tmpBaseLow = pciData = mvPciIfConfigRead(pciIf,
 695                                                                            bus,dev,func,
 696                                                                PCI_MEMORY_BAR_BASE_ADDR(barIndex));
 697
 698                 pPciAgent->pciBar[detectedBar].barOffset =
 699                         PCI_MEMORY_BAR_BASE_ADDR(barIndex);
 700
 701                 /* check if the bar is 32bit or 64bit bar */
 702                 switch (pciData & PBBLR_TYPE_MASK)
 703                 {
 704                 case PBBLR_TYPE_32BIT_ADDR:
 705                         pPciAgent->pciBar[detectedBar].barType = PCI_32BIT_BAR;
 706                         break;
 707                 case PBBLR_TYPE_64BIT_ADDR:
 708                         pPciAgent->pciBar[detectedBar].barType = PCI_64BIT_BAR;
 709                         break;
 710
 711                 }
 712
 713                 /* check if it is memory or IO bar */
 714                 if (pciData & PBBLR_IOSPACE)
 715                 {
 716                         pPciAgent->pciBar[detectedBar].barMapping=PCI_IO_BAR;
 717                 }
 718                 else
 719                 {
 720                         pPciAgent->pciBar[detectedBar].barMapping=PCI_MEMORY_BAR;
 721                 }
 722
 723                 /* if it is memory bar then check if it is prefetchable */
 724                 if (PCI_MEMORY_BAR == pPciAgent->pciBar[detectedBar].barMapping)
 725                 {
 726                         if (pciData & PBBLR_PREFETCH_EN)
 727                         {
 728                                 pPciAgent->pciBar[detectedBar].isPrefetchable = MV_TRUE;
 729                         }
 730                         else
 731                         {
 732                                 pPciAgent->pciBar[detectedBar].isPrefetchable = MV_FALSE;
 733                         }
 734
 735             pPciAgent->pciBar[detectedBar].barBaseLow =
 736                                 pciData & PBBLR_MEM_BASE_MASK;
 737
 738
 739                 }
 740                 else /* IO Bar */
 741                 {
 742                         pPciAgent->pciBar[detectedBar].barBaseLow =
 743                                 pciData & PBBLR_IO_BASE_MASK;
 744
 745                 }
 746
 747                 pPciAgent->pciBar[detectedBar].barBaseHigh=0;
 748
 749                 if (PCI_64BIT_BAR == pPciAgent->pciBar[detectedBar].barType)
 750                 {
 751                         barIndex++;
 752
 753                         tmpBaseHigh = pPciAgent->pciBar[detectedBar].barBaseHigh =
 754                                 mvPciIfConfigRead(pciIf,
 755                                                                 bus,dev,func,
 756                                                                 PCI_MEMORY_BAR_BASE_ADDR(barIndex));
 757
 758
 759                 }
 760
 761                 /* calculating full base address (64bit) */
 762                 pPciAgent->pciBar[detectedBar].barBaseAddr =
 763                         (MV_U64)pPciAgent->pciBar[detectedBar].barBaseHigh;
 764
 765                 pPciAgent->pciBar[detectedBar].barBaseAddr <<= 32;
 766
 767                 pPciAgent->pciBar[detectedBar].barBaseAddr |=
 768                         (MV_U64)pPciAgent->pciBar[detectedBar].barBaseLow;
 769
 770
 771
 772                 /* get the sizes of the the bar */
 773
 774                 pPciAgent->pciBar[detectedBar].barSizeHigh=0;
 775
 776                 if ((PCI_64BIT_BAR == pPciAgent->pciBar[detectedBar].barType) &&
 777                         (PCI_MEMORY_BAR == pPciAgent->pciBar[detectedBar].barMapping))
 778
 779                 {
 780                         /* write oxffffffff to the bar to get the size */
 781                         /* start with sizelow ( original value was saved in tmpBaseLow ) */
 782                         mvPciIfConfigWrite(pciIf,
 783                                                         bus,dev,func,
 784                                                         PCI_MEMORY_BAR_BASE_ADDR(barIndex-1),
 785                                                         0xffffffff);
 786
 787                         /* read size */
 788                         pPciAgent->pciBar[detectedBar].barSizeLow =
 789                                 mvPciIfConfigRead(pciIf,
 790                                                                 bus,dev,func,
 791                                                                 PCI_MEMORY_BAR_BASE_ADDR(barIndex-1));
 792
 793
 794
 795                         /* restore original value */
 796                         mvPciIfConfigWrite(pciIf,
 797                                                         bus,dev,func,
 798                                                         PCI_MEMORY_BAR_BASE_ADDR(barIndex-1),
 799                                                         tmpBaseLow);
 800
 801
 802                         /* now do the same for BaseHigh */
 803
 804                         /* write oxffffffff to the bar to get the size */
 805                         mvPciIfConfigWrite(pciIf,
 806                                                         bus,dev,func,
 807                                                         PCI_MEMORY_BAR_BASE_ADDR(barIndex),
 808                                                         0xffffffff);
 809
 810                         /* read size */
 811                         pPciAgent->pciBar[detectedBar].barSizeHigh =
 812                                 mvPciIfConfigRead(pciIf,
 813                                                                 bus,dev,func,
 814                                                                 PCI_MEMORY_BAR_BASE_ADDR(barIndex));
 815
 816                         /* restore original value */
 817                         mvPciIfConfigWrite(pciIf,
 818                                                         bus,dev,func,
 819                                                         PCI_MEMORY_BAR_BASE_ADDR(barIndex),
 820                                                         tmpBaseHigh);
 821
 822                         if ((0 == pPciAgent->pciBar[detectedBar].barSizeLow)&&
 823                                 (0 == pPciAgent->pciBar[detectedBar].barSizeHigh))
 824                         {
 825                                 /* this bar is not applicable for this device,
 826                                    ignore all previous settings and check the next bar*/
 827
 828                                 /* we though this was a 64bit bar , and it seems this
 829                                    was wrong ! so decrement barIndex */
 830                                 barIndex--;
 831                                 continue;
 832                         }
 833
 834                         /* calculate the full 64 bit size  */
 835
 836                         if (0 != pPciAgent->pciBar[detectedBar].barSizeHigh)
 837                         {
 838                                 pPciAgent->pciBar[detectedBar].barSizeLow &= PBBLR_MEM_BASE_MASK;
 839
 840                                 pPciAgent->pciBar[detectedBar].barSizeLow =
 841                                         ~pPciAgent->pciBar[detectedBar].barSizeLow + 1;
 842
 843                                 pPciAgent->pciBar[detectedBar].barSizeHigh = 0;
 844
 845                         }
 846                         else
 847                         {
 848
 849                                 pPciAgent->pciBar[detectedBar].barSizeLow &= PBBLR_MEM_BASE_MASK;
 850
 851                                 pPciAgent->pciBar[detectedBar].barSizeLow =
 852                                         ~pPciAgent->pciBar[detectedBar].barSizeLow + 1;
 853
 854                                 pPciAgent->pciBar[detectedBar].barSizeHigh = 0;
 855
 856                         }
 857
 858
 859
 860                 }
 861                 else /* 32bit bar */
 862                 {
 863                         /* write oxffffffff to the bar to get the size */
 864                         mvPciIfConfigWrite(pciIf,
 865                                                         bus,dev,func,
 866                                                         PCI_MEMORY_BAR_BASE_ADDR(barIndex),
 867                                                         0xffffffff);
 868
 869                         /* read size */
 870                         pPciAgent->pciBar[detectedBar].barSizeLow =
 871                                 mvPciIfConfigRead(pciIf,
 872                                                                 bus,dev,func,
 873                                                                 PCI_MEMORY_BAR_BASE_ADDR(barIndex));
 874
 875                         if (0 == pPciAgent->pciBar[detectedBar].barSizeLow)
 876                         {
 877                                 /* this bar is not applicable for this device,
 878                                    ignore all previous settings and check the next bar*/
 879                                 continue;
 880                         }
 881
 882
 883                         /* restore original value */
 884                         mvPciIfConfigWrite(pciIf,
 885                                                         bus,dev,func,
 886                                                         PCI_MEMORY_BAR_BASE_ADDR(barIndex),
 887                                                         tmpBaseLow);
 888
 889                 /* calculate size low */
 890
 891                         if (PCI_MEMORY_BAR == pPciAgent->pciBar[detectedBar].barMapping)
 892                         {
 893                                 pPciAgent->pciBar[detectedBar].barSizeLow &= PBBLR_MEM_BASE_MASK;
 894                         }
 895                         else
 896                         {
 897                                 pPciAgent->pciBar[detectedBar].barSizeLow &= PBBLR_IO_BASE_MASK;
 898                         }
 899
 900                         pPciAgent->pciBar[detectedBar].barSizeLow =
 901                                 ~pPciAgent->pciBar[detectedBar].barSizeLow + 1;
 902
 903                         pPciAgent->pciBar[detectedBar].barSizeHigh = 0;
 904                         pPciAgent->pciBar[detectedBar].barSize =
 905                                 (MV_U64)pPciAgent->pciBar[detectedBar].barSizeLow;
 906
 907
 908                 }
 909
 910                 /* we are here ! this means we have already detected a bar for
 911                 this device , now move on */
 912
 913                 detectedBar++;
 914                 pPciAgent->barsNum++;
 915         }
 916
 917         return detectedBar;
 918 }
 919
 920
 921 /*******************************************************************************
 922 * mvPciClassNameGet - get PCI  class name
 923 *
 924 * DESCRIPTION:
 925 *               This function returns the PCI class name
 926 *
 927 * INPUT:
 928 *       baseClassCode       - Base Class Code.
 929 *
 930 * OUTPUT:
 931 *       pType - the class name
 932 *
 933 * RETURN:
 934 *       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
 935 *
 936 *******************************************************************************/
 937 MV_STATUS mvPciClassNameGet(MV_U32 baseClassCode, MV_8 *pType)
 938 {
 939
 940     switch(baseClassCode)
 941     {
 942         case 0x0:
 943             strcpy(pType,"Old generation device");
 944             break;
 945         case 0x1:
 946             strcpy(pType,"Mass storage controller");
 947             break;
 948         case 0x2:
 949             strcpy(pType,"Network controller");
 950             break;
 951         case 0x3:
 952             strcpy(pType,"Display controller");
 953             break;
 954         case 0x4:
 955             strcpy(pType,"Multimedia device");
 956             break;
 957         case 0x5:
 958             strcpy(pType,"Memory controller");
 959             break;
 960         case 0x6:
 961             strcpy(pType,"Bridge Device");
 962             break;
 963         case 0x7:
 964             strcpy(pType,"Simple Communication controllers");
 965             break;
 966         case 0x8:
 967             strcpy(pType,"Base system peripherals");
 968             break;
 969         case 0x9:
 970             strcpy(pType,"Input Devices");
 971             break;
 972         case 0xa:
 973             strcpy(pType,"Docking stations");
 974             break;
 975         case 0xb:
 976             strcpy(pType,"Processors");
 977             break;
 978         case 0xc:
 979             strcpy(pType,"Serial bus controllers");
 980             break;
 981         case 0xd:
 982             strcpy(pType,"Wireless controllers");
 983             break;
 984         case 0xe:
 985             strcpy(pType,"Intelligent I/O controllers");
 986             break;
 987         case 0xf:
 988             strcpy(pType,"Satellite communication controllers");
 989             break;
 990         case 0x10:
 991             strcpy(pType,"Encryption/Decryption controllers");
 992             break;
 993         case 0x11:
 994             strcpy(pType,"Data acquisition and signal processing controllers");
 995             break;
 996         default:
 997             strcpy(pType,"Unknown device");
 998             break;
 999     }
1000
1001         return MV_OK;
1002
1003 }
1004
1005
1006