1/******************************************************************************* 2Copyright (C) Marvell International Ltd. and its affiliates 3 4This software file (the "File") is owned and distributed by Marvell 5International Ltd. and/or its affiliates ("Marvell") under the following 6alternative licensing terms. Once you have made an election to distribute the 7File under one of the following license alternatives, please (i) delete this 8introductory statement regarding license alternatives, (ii) delete the two 9license alternatives that you have not elected to use and (iii) preserve the 10Marvell copyright notice above. 11 12******************************************************************************** 13Marvell Commercial License Option 14 15If you received this File from Marvell and you have entered into a commercial 16license agreement (a "Commercial License") with Marvell, the File is licensed 17to you under the terms of the applicable Commercial License. 18 19******************************************************************************** 20Marvell GPL License Option 21 22If you received this File from Marvell, you may opt to use, redistribute and/or 23modify this File in accordance with the terms and conditions of the General 24Public License Version 2, June 1991 (the "GPL License"), a copy of which is 25available along with the File in the license.txt file or by writing to the Free 26Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or 27on the worldwide web at http://www.gnu.org/licenses/gpl.txt. 28 29THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED 30WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY 31DISCLAIMED. The GPL License provides additional details about this warranty 32disclaimer. 33******************************************************************************** 34Marvell BSD License Option 35 36If you received this File from Marvell, you may opt to use, redistribute and/or 37modify this File under the following licensing terms. 38Redistribution and use in source and binary forms, with or without modification, 39are permitted provided that the following conditions are met: 40 41 * Redistributions of source code must retain the above copyright notice, 42 this list of conditions and the following disclaimer. 43 44 * Redistributions in binary form must reproduce the above copyright 45 notice, this list of conditions and the following disclaimer in the 46 documentation and/or other materials provided with the distribution. 47 48 * Neither the name of Marvell nor the names of its contributors may be 49 used to endorse or promote products derived from this software without 50 specific prior written permission. 51 52THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 53ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 54WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 55DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 56ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 57(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 58LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 59ANY 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 61SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 63*******************************************************************************/ 64 65#include "mvPciIf.h" 66#include "ctrlEnv/sys/mvSysPex.h" 67 68#if defined(MV_INCLUDE_PCI) 69#include "ctrlEnv/sys/mvSysPci.h" 70#endif 71 72 73/* defines */ 74#ifdef MV_DEBUG 75 #define DB(x) x 76#else 77 #define DB(x) 78#endif 79 80 81/******************************************************************************* 82* mvPciInit - Initialize PCI interfaces 83* 84* DESCRIPTION: 85* 86* INPUT: 87* 88* 89* OUTPUT: 90* None. 91* 92* RETURN: 93* MV_OK if function success otherwise MV_ERROR or MV_BAD_PARAM 94* 95*******************************************************************************/ 96 97 98MV_STATUS mvPciIfInit(MV_U32 pciIf, PCI_IF_MODE pciIfmode) 99{ 100 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 101 102 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 103 { 104 #if defined(MV_INCLUDE_PCI) 105 106 MV_PCI_MOD pciMod; 107 108 if (PCI_IF_MODE_HOST == pciIfmode) 109 { 110 pciMod = MV_PCI_MOD_HOST; 111 } 112 else if (PCI_IF_MODE_DEVICE == pciIfmode) 113 { 114 pciMod = MV_PCI_MOD_DEVICE; 115 } 116 else 117 { 118 mvOsPrintf("%s: ERROR!!! Bus %d mode %d neither host nor device!\n", 119 __FUNCTION__, pciIf, pciIfmode); 120 return MV_FAIL; 121 } 122 123 return mvPciInit(pciIf - MV_PCI_START_IF, pciMod); 124 #else 125 return MV_OK; 126 #endif 127 } 128 else if (PCI_IF_TYPE_PEX == pciIfType) 129 { 130 #if defined(MV_INCLUDE_PEX) 131 132 MV_PEX_TYPE pexType; 133 134 if (PCI_IF_MODE_HOST == pciIfmode) 135 { 136 pexType = MV_PEX_ROOT_COMPLEX; 137 } 138 else if (PCI_IF_MODE_DEVICE == pciIfmode) 139 { 140 pexType = MV_PEX_END_POINT; 141 } 142 else 143 { 144 mvOsPrintf("%s: ERROR!!! Bus %d type %d neither root complex nor" \ 145 " end point\n", __FUNCTION__, pciIf, pciIfmode); 146 return MV_FAIL; 147 } 148 return mvPexInit(pciIf - MV_PEX_START_IF, pexType); 149 150 #else 151 return MV_OK; 152 #endif 153 154 } 155 else 156 { 157 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 158 } 159 160 return MV_FAIL; 161 162} 163 164/* PCI configuration space read write */ 165 166/******************************************************************************* 167* mvPciConfigRead - Read from configuration space 168* 169* DESCRIPTION: 170* This function performs a 32 bit read from PCI configuration space. 171* It supports both type 0 and type 1 of Configuration Transactions 172* (local and over bridge). In order to read from local bus segment, use 173* bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers 174* will result configuration transaction of type 1 (over bridge). 175* 176* INPUT: 177* pciIf - PCI interface number. 178* bus - PCI segment bus number. 179* dev - PCI device number. 180* func - Function number. 181* regOffs - Register offset. 182* 183* OUTPUT: 184* None. 185* 186* RETURN: 187* 32bit register data, 0xffffffff on error 188* 189*******************************************************************************/ 190MV_U32 mvPciIfConfigRead (MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, 191 MV_U32 regOff) 192{ 193 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 194 195 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 196 { 197 #if defined(MV_INCLUDE_PCI) 198 return mvPciConfigRead(pciIf - MV_PCI_START_IF, 199 bus, 200 dev, 201 func, 202 regOff); 203 #else 204 return 0xffffffff; 205 #endif 206 } 207 else if (PCI_IF_TYPE_PEX == pciIfType) 208 { 209 #if defined(MV_INCLUDE_PEX) 210 return mvPexConfigRead(pciIf - MV_PEX_START_IF, 211 bus, 212 dev, 213 func, 214 regOff); 215 #else 216 return 0xffffffff; 217 #endif 218 219 } 220 else 221 { 222 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 223 } 224 225 return 0; 226 227} 228 229/******************************************************************************* 230* mvPciConfigWrite - Write to configuration space 231* 232* DESCRIPTION: 233* This function performs a 32 bit write to PCI configuration space. 234* It supports both type 0 and type 1 of Configuration Transactions 235* (local and over bridge). In order to write to local bus segment, use 236* bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers 237* will result configuration transaction of type 1 (over bridge). 238* 239* INPUT: 240* pciIf - PCI interface number. 241* bus - PCI segment bus number. 242* dev - PCI device number. 243* func - Function number. 244* regOffs - Register offset. 245* data - 32bit data. 246* 247* OUTPUT: 248* None. 249* 250* RETURN: 251* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK 252* 253*******************************************************************************/ 254MV_STATUS mvPciIfConfigWrite(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, 255 MV_U32 func, MV_U32 regOff, MV_U32 data) 256{ 257 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 258 259 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 260 { 261 #if defined(MV_INCLUDE_PCI) 262 return mvPciConfigWrite(pciIf - MV_PCI_START_IF, 263 bus, 264 dev, 265 func, 266 regOff, 267 data); 268 #else 269 return MV_OK; 270 #endif 271 } 272 else if (PCI_IF_TYPE_PEX == pciIfType) 273 { 274 #if defined(MV_INCLUDE_PEX) 275 return mvPexConfigWrite(pciIf - MV_PEX_START_IF, 276 bus, 277 dev, 278 func, 279 regOff, 280 data); 281 #else 282 return MV_OK; 283 #endif 284 285 } 286 else 287 { 288 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 289 } 290 291 return MV_FAIL; 292 293} 294 295/******************************************************************************* 296* mvPciMasterEnable - Enable/disale PCI interface master transactions. 297* 298* DESCRIPTION: 299* This function performs read modified write to PCI command status 300* (offset 0x4) to set/reset bit 2. After this bit is set, the PCI 301* master is allowed to gain ownership on the bus, otherwise it is 302* incapable to do so. 303* 304* INPUT: 305* pciIf - PCI interface number. 306* enable - Enable/disable parameter. 307* 308* OUTPUT: 309* None. 310* 311* RETURN: 312* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK 313* 314*******************************************************************************/ 315MV_STATUS mvPciIfMasterEnable(MV_U32 pciIf, MV_BOOL enable) 316{ 317 318 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 319 320 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 321 { 322 #if defined(MV_INCLUDE_PCI) 323 return mvPciMasterEnable(pciIf - MV_PCI_START_IF, 324 enable); 325 #else 326 return MV_OK; 327 #endif 328 } 329 else if (PCI_IF_TYPE_PEX == pciIfType) 330 { 331 #if defined(MV_INCLUDE_PEX) 332 return mvPexMasterEnable(pciIf - MV_PEX_START_IF, 333 enable); 334 #else 335 return MV_OK; 336 #endif 337 } 338 else 339 { 340 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 341 } 342 343 return MV_FAIL; 344 345} 346 347 348/******************************************************************************* 349* mvPciSlaveEnable - Enable/disale PCI interface slave transactions. 350* 351* DESCRIPTION: 352* This function performs read modified write to PCI command status 353* (offset 0x4) to set/reset bit 0 and 1. After those bits are set, 354* the PCI slave is allowed to respond to PCI IO space access (bit 0) 355* and PCI memory space access (bit 1). 356* 357* INPUT: 358* pciIf - PCI interface number. 359* dev - PCI device number. 360* enable - Enable/disable parameter. 361* 362* OUTPUT: 363* None. 364* 365* RETURN: 366* MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK 367* 368*******************************************************************************/ 369MV_STATUS mvPciIfSlaveEnable(MV_U32 pciIf,MV_U32 bus, MV_U32 dev, MV_BOOL enable) 370{ 371 372 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 373 374 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 375 { 376 #if defined(MV_INCLUDE_PCI) 377 return mvPciSlaveEnable(pciIf - MV_PCI_START_IF,bus,dev, 378 enable); 379 #else 380 return MV_OK; 381 #endif 382 } 383 else if (PCI_IF_TYPE_PEX == pciIfType) 384 { 385 #if defined(MV_INCLUDE_PEX) 386 return mvPexSlaveEnable(pciIf - MV_PEX_START_IF,bus,dev, 387 enable); 388 #else 389 return MV_OK; 390 #endif 391 } 392 else 393 { 394 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 395 } 396 397 return MV_FAIL; 398 399} 400 401/******************************************************************************* 402* mvPciLocalBusNumSet - Set PCI interface local bus number. 403* 404* DESCRIPTION: 405* This function sets given PCI interface its local bus number. 406* Note: In case the PCI interface is PCI-X, the information is read-only. 407* 408* INPUT: 409* pciIf - PCI interface number. 410* busNum - Bus number. 411* 412* OUTPUT: 413* None. 414* 415* RETURN: 416* MV_NOT_ALLOWED in case PCI interface is PCI-X. 417* MV_BAD_PARAM on bad parameters , 418* otherwise MV_OK 419* 420*******************************************************************************/ 421MV_STATUS mvPciIfLocalBusNumSet(MV_U32 pciIf, MV_U32 busNum) 422{ 423 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 424 425 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 426 { 427 #if defined(MV_INCLUDE_PCI) 428 return mvPciLocalBusNumSet(pciIf - MV_PCI_START_IF, 429 busNum); 430 #else 431 return MV_OK; 432 #endif 433 } 434 else if (PCI_IF_TYPE_PEX == pciIfType) 435 { 436 #if defined(MV_INCLUDE_PEX) 437 return mvPexLocalBusNumSet(pciIf - MV_PEX_START_IF, 438 busNum); 439 #else 440 return MV_OK; 441 #endif 442 } 443 else 444 { 445 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 446 } 447 448 return MV_FAIL; 449 450} 451 452/******************************************************************************* 453* mvPciLocalBusNumGet - Get PCI interface local bus number. 454* 455* DESCRIPTION: 456* This function gets the local bus number of a given PCI interface. 457* 458* INPUT: 459* pciIf - PCI interface number. 460* 461* OUTPUT: 462* None. 463* 464* RETURN: 465* Local bus number.0xffffffff on Error 466* 467*******************************************************************************/ 468MV_U32 mvPciIfLocalBusNumGet(MV_U32 pciIf) 469{ 470 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 471 472 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 473 { 474 #if defined(MV_INCLUDE_PCI) 475 return mvPciLocalBusNumGet(pciIf - MV_PCI_START_IF); 476 #else 477 return 0xFFFFFFFF; 478 #endif 479 } 480 else if (PCI_IF_TYPE_PEX == pciIfType) 481 { 482 #if defined(MV_INCLUDE_PEX) 483 return mvPexLocalBusNumGet(pciIf - MV_PEX_START_IF); 484 #else 485 return 0xFFFFFFFF; 486 #endif 487 488 } 489 else 490 { 491 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n",__FUNCTION__, pciIf); 492 } 493 494 return 0; 495 496} 497 498 499/******************************************************************************* 500* mvPciLocalDevNumSet - Set PCI interface local device number. 501* 502* DESCRIPTION: 503* This function sets given PCI interface its local device number. 504* Note: In case the PCI interface is PCI-X, the information is read-only. 505* 506* INPUT: 507* pciIf - PCI interface number. 508* devNum - Device number. 509* 510* OUTPUT: 511* None. 512* 513* RETURN: 514* MV_NOT_ALLOWED in case PCI interface is PCI-X. MV_BAD_PARAM on bad parameters , 515* otherwise MV_OK 516* 517*******************************************************************************/ 518MV_STATUS mvPciIfLocalDevNumSet(MV_U32 pciIf, MV_U32 devNum) 519{ 520 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 521 522 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 523 { 524 #if defined(MV_INCLUDE_PCI) 525 return mvPciLocalDevNumSet(pciIf - MV_PCI_START_IF, 526 devNum); 527 #else 528 return MV_OK; 529 #endif 530 } 531 else if (PCI_IF_TYPE_PEX == pciIfType) 532 { 533 #if defined(MV_INCLUDE_PEX) 534 return mvPexLocalDevNumSet(pciIf - MV_PEX_START_IF, 535 devNum); 536 #else 537 return MV_OK; 538 #endif 539 } 540 else 541 { 542 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 543 } 544 545 return MV_FAIL; 546 547} 548 549/******************************************************************************* 550* mvPciLocalDevNumGet - Get PCI interface local device number. 551* 552* DESCRIPTION: 553* This function gets the local device number of a given PCI interface. 554* 555* INPUT: 556* pciIf - PCI interface number. 557* 558* OUTPUT: 559* None. 560* 561* RETURN: 562* Local device number. 0xffffffff on Error 563* 564*******************************************************************************/ 565MV_U32 mvPciIfLocalDevNumGet(MV_U32 pciIf) 566{ 567 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 568 569 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 570 { 571 #if defined(MV_INCLUDE_PCI) 572 return mvPciLocalDevNumGet(pciIf - MV_PCI_START_IF); 573 #else 574 return 0xFFFFFFFF; 575 #endif 576 } 577 else if (PCI_IF_TYPE_PEX == pciIfType) 578 { 579 #if defined(MV_INCLUDE_PEX) 580 return mvPexLocalDevNumGet(pciIf - MV_PEX_START_IF); 581 #else 582 return 0xFFFFFFFF; 583 #endif 584 585 } 586 else 587 { 588 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 589 } 590 591 return 0; 592 593} 594 595/******************************************************************************* 596* mvPciIfTypeGet - 597* 598* DESCRIPTION: 599* 600* INPUT: 601* 602* OUTPUT: 603* None. 604* 605* RETURN: 606* 607*******************************************************************************/ 608 609PCI_IF_TYPE mvPciIfTypeGet(MV_U32 pciIf) 610{ 611 612 if ((pciIf >= MV_PCI_START_IF)&&(pciIf < MV_PCI_MAX_IF + MV_PCI_START_IF)) 613 { 614 return PCI_IF_TYPE_CONVEN_PCIX; 615 } 616 else if ((pciIf >= MV_PEX_START_IF) && 617 (pciIf < MV_PEX_MAX_IF + MV_PEX_START_IF)) 618 { 619 return PCI_IF_TYPE_PEX; 620 621 } 622 else 623 { 624 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 625 } 626 627 return 0xffffffff; 628 629} 630 631/******************************************************************************* 632* mvPciIfTypeGet - 633* 634* DESCRIPTION: 635* 636* INPUT: 637* 638* OUTPUT: 639* None. 640* 641* RETURN: 642* 643*******************************************************************************/ 644 645MV_U32 mvPciRealIfNumGet(MV_U32 pciIf) 646{ 647 648 PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf); 649 650 if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) 651 { 652 return (pciIf - MV_PCI_START_IF); 653 } 654 else if (PCI_IF_TYPE_PEX == pciIfType) 655 { 656 return (pciIf - MV_PEX_START_IF); 657 658 } 659 else 660 { 661 mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __FUNCTION__, pciIf); 662 } 663 664 return 0xffffffff; 665 666} 667 668 669 670