target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysTs.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
  50         specific prior written permission.
  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
  66 #include "ctrlEnv/sys/mvSysTs.h"
  67
  68
  69 typedef struct _mvTsuDecWin
  70 {
  71         MV_TARGET     target;
  72         MV_ADDR_WIN   addrWin; /* An address window*/
  73         MV_BOOL       enable;  /* Address decode window is enabled/disabled */
  74
  75 }MV_TSU_DEC_WIN;
  76
  77
  78 MV_TARGET tsuAddrDecPrioTap[] =
  79 {
  80 #if defined(MV_INCLUDE_PEX)
  81         PEX0_MEM,
  82 #endif
  83 #if defined(MV_INCLUDE_PCI)
  84         PCI0_MEM,
  85 #endif
  86 #if defined(MV_INCLUDE_SDRAM_CS0)
  87         SDRAM_CS0,
  88 #endif
  89 #if defined(MV_INCLUDE_SDRAM_CS1)
  90         SDRAM_CS1,
  91 #endif
  92 #if defined(MV_INCLUDE_SDRAM_CS2)
  93         SDRAM_CS2,
  94 #endif
  95 #if defined(MV_INCLUDE_SDRAM_CS3)
  96         SDRAM_CS3,
  97 #endif
  98 #if defined(MV_INCLUDE_DEVICE_CS0)
  99         DEVICE_CS0,
 100 #endif
 101 #if defined(MV_INCLUDE_DEVICE_CS1)
 102         DEVICE_CS1,
 103 #endif
 104 #if defined(MV_INCLUDE_DEVICE_CS2)
 105         DEVICE_CS2,
 106 #endif
 107 #if defined(MV_INCLUDE_DEVICE_CS3)
 108         DEVICE_CS3,
 109 #endif
 110 #if defined(MV_INCLUDE_PEX)
 111         PEX0_IO,
 112 #endif
 113 #if defined(MV_INCLUDE_PCI)
 114         PCI0_IO,
 115 #endif
 116         TBL_TERM
 117 };
 118
 119 static MV_STATUS tsuWinOverlapDetect(MV_U32 winNum, MV_ADDR_WIN *pAddrWin);
 120 static MV_STATUS mvTsuWinSet(MV_U32 winNum, MV_TSU_DEC_WIN *pAddrDecWin);
 121 static MV_STATUS mvTsuWinGet(MV_U32 winNum, MV_TSU_DEC_WIN *pAddrDecWin);
 122 MV_STATUS mvTsuWinEnable(MV_U32 winNum,MV_BOOL enable);
 123
 124 /*******************************************************************************
 125 * mvTsuWinInit
 126 *
 127 * DESCRIPTION:
 128 *       Initialize the TSU unit address decode windows.
 129 *
 130 * INPUT:
 131 *       None.
 132 * OUTPUT:
 133 *       None.
 134 * RETURN:
 135 *       MV_OK   - on success,
 136 *
 137 *******************************************************************************/
 138 MV_STATUS mvTsuWinInit(void)
 139 {
 140         MV_U32          winNum, status, winPrioIndex=0;
 141         MV_TSU_DEC_WIN  tsuWin;
 142         MV_CPU_DEC_WIN  cpuAddrDecWin;
 143
 144         /* First disable all address decode windows */
 145         for(winNum = 0; winNum < TSU_MAX_DECODE_WIN; winNum++)
 146         {
 147                 MV_REG_BIT_RESET(MV_TSU_WIN_CTRL_REG(winNum),
 148                                  TSU_WIN_CTRL_EN_MASK);
 149         }
 150
 151         /* Go through all windows in user table until table terminator      */
 152         for(winNum = 0; ((tsuAddrDecPrioTap[winPrioIndex] != TBL_TERM) &&
 153                          (winNum < TSU_MAX_DECODE_WIN));)
 154         {
 155                 /* first get attributes from CPU If */
 156                 status = mvCpuIfTargetWinGet(tsuAddrDecPrioTap[winPrioIndex],
 157                                              &cpuAddrDecWin);
 158
 159                 if(MV_NO_SUCH == status)
 160                 {
 161                         winPrioIndex++;
 162                         continue;
 163                 }
 164                 if(MV_OK != status)
 165                 {
 166                         mvOsPrintf("mvTsuWinInit: ERR. mvCpuIfTargetWinGet failed\n");
 167                         return MV_ERROR;
 168                 }
 169
 170                 if (cpuAddrDecWin.enable == MV_TRUE)
 171                 {
 172                         tsuWin.addrWin.baseHigh = cpuAddrDecWin.addrWin.baseHigh;
 173                         tsuWin.addrWin.baseLow = cpuAddrDecWin.addrWin.baseLow;
 174                         tsuWin.addrWin.size = cpuAddrDecWin.addrWin.size;
 175                         tsuWin.enable = MV_TRUE;
 176                         tsuWin.target = tsuAddrDecPrioTap[winPrioIndex];
 177
 178                         if(MV_OK != mvTsuWinSet(winNum, &tsuWin))
 179                         {
 180                                 mvOsPrintf("mvTsuWinInit: ERR. mvTsuWinSet failed winNum=%d\n",
 181                                            winNum);
 182                                 return MV_ERROR;
 183                         }
 184                         winNum++;
 185                 }
 186                 winPrioIndex ++;
 187         }
 188
 189         return MV_OK;
 190 }
 191
 192
 193 /*******************************************************************************
 194 * mvTsuWinSet
 195 *
 196 * DESCRIPTION:
 197 *       This function sets a peripheral target (e.g. SDRAM bank0, PCI_MEM0)
 198 *       address window, also known as address decode window.
 199 *       After setting this target window, the TSU will be able to access the
 200 *       target within the address window.
 201 *
 202 * INPUT:
 203 *       winNum      - TSU to target address decode window number.
 204 *       pAddrDecWin - TSU target window data structure.
 205 *
 206 * OUTPUT:
 207 *       None.
 208 *
 209 * RETURN:
 210 *       MV_ERROR        - if address window overlapps with other address decode
 211 *                       windows.
 212 *       MV_BAD_PARAM    - if base address is invalid parameter or target is
 213 *                       unknown.
 214 *
 215 *******************************************************************************/
 216 MV_STATUS mvTsuWinSet(MV_U32 winNum, MV_TSU_DEC_WIN *pAddrDecWin)
 217 {
 218         MV_TARGET_ATTRIB    targetAttribs;
 219         MV_DEC_REGS         decRegs;
 220
 221         /* Parameter checking   */
 222         if(winNum >= TSU_MAX_DECODE_WIN)
 223         {
 224                 mvOsPrintf("mvTsuWinSet: ERR. Invalid win num %d\n",winNum);
 225                 return MV_BAD_PARAM;
 226         }
 227
 228         /* Check if the requested window overlapps with current windows     */
 229         if(MV_TRUE == tsuWinOverlapDetect(winNum, &pAddrDecWin->addrWin))
 230         {
 231                 mvOsPrintf("mvTsuWinSet: ERR. Window %d overlap\n", winNum);
 232                 return MV_ERROR;
 233         }
 234
 235         /* check if address is aligned to the size */
 236         if(MV_IS_NOT_ALIGN(pAddrDecWin->addrWin.baseLow,pAddrDecWin->addrWin.size))
 237         {
 238                 mvOsPrintf("mvTsuWinSet: Error setting TSU window %d to target "
 239                            "%s.\nAddress 0x%08x is unaligned to size 0x%x.\n",
 240                            winNum, mvCtrlTargetNameGet(pAddrDecWin->target),
 241                            pAddrDecWin->addrWin.baseLow,
 242                            pAddrDecWin->addrWin.size);
 243                 return MV_ERROR;
 244         }
 245
 246         decRegs.baseReg = MV_REG_READ(MV_TSU_WIN_BASE_REG(winNum));
 247         decRegs.sizeReg = MV_REG_READ(MV_TSU_WIN_CTRL_REG(winNum));
 248
 249         if(MV_OK != mvCtrlAddrDecToReg(&(pAddrDecWin->addrWin),&decRegs))
 250         {
 251                 mvOsPrintf("mvTsuWinSet: mvCtrlAddrDecToReg Failed\n");
 252                 return MV_ERROR;
 253         }
 254
 255         mvCtrlAttribGet(pAddrDecWin->target,&targetAttribs);
 256
 257         /* set attributes */
 258         decRegs.sizeReg &= ~TSU_WIN_CTRL_ATTR_MASK;
 259         decRegs.sizeReg |= targetAttribs.attrib << TSU_WIN_CTRL_ATTR_OFFS;
 260         /* set target ID */
 261         decRegs.sizeReg &= ~TSU_WIN_CTRL_TARGET_MASK;
 262         decRegs.sizeReg |= targetAttribs.targetId << TSU_WIN_CTRL_TARGET_OFFS;
 263
 264         /* for the safe side we disable the window before writing the new */
 265         /* values */
 266         mvTsuWinEnable(winNum, MV_FALSE);
 267         MV_REG_WRITE(MV_TSU_WIN_CTRL_REG(winNum),decRegs.sizeReg);
 268
 269         /* Write to address decode Size Register                            */
 270         MV_REG_WRITE(MV_TSU_WIN_BASE_REG(winNum), decRegs.baseReg);
 271
 272         /* Enable address decode target window                              */
 273         if(pAddrDecWin->enable == MV_TRUE)
 274         {
 275                 mvTsuWinEnable(winNum,MV_TRUE);
 276         }
 277
 278         return MV_OK;
 279 }
 280
 281
 282 /*******************************************************************************
 283 * mvTsuWinGet
 284 *
 285 * DESCRIPTION:
 286 *       Get TSU peripheral target address window.
 287 *
 288 * INPUT:
 289 *       winNum - TSU to target address decode window number.
 290 *
 291 * OUTPUT:
 292 *       pAddrDecWin - TSU target window data structure.
 293 *
 294 * RETURN:
 295 *       MV_ERROR if register parameters are invalid.
 296 *
 297 *******************************************************************************/
 298 MV_STATUS mvTsuWinGet(MV_U32 winNum, MV_TSU_DEC_WIN *pAddrDecWin)
 299 {
 300         MV_DEC_REGS decRegs;
 301         MV_TARGET_ATTRIB targetAttrib;
 302
 303         /* Parameter checking   */
 304         if(winNum >= TSU_MAX_DECODE_WIN)
 305         {
 306                 mvOsPrintf("mvTsuWinGet: ERR. Invalid winNum %d\n", winNum);
 307                 return MV_NOT_SUPPORTED;
 308         }
 309
 310         decRegs.baseReg = MV_REG_READ(MV_TSU_WIN_BASE_REG(winNum));
 311         decRegs.sizeReg = MV_REG_READ(MV_TSU_WIN_CTRL_REG(winNum));
 312
 313         if(MV_OK != mvCtrlRegToAddrDec(&decRegs,&(pAddrDecWin->addrWin)))
 314         {
 315                 mvOsPrintf("mvTsuWinGet: mvCtrlRegToAddrDec Failed \n");
 316                 return MV_ERROR;
 317         }
 318
 319         /* attrib and targetId */
 320         targetAttrib.attrib =
 321                 (decRegs.sizeReg & TSU_WIN_CTRL_ATTR_MASK) >> TSU_WIN_CTRL_ATTR_OFFS;
 322         targetAttrib.targetId =
 323                 (decRegs.sizeReg & TSU_WIN_CTRL_TARGET_MASK) >> TSU_WIN_CTRL_TARGET_OFFS;
 324
 325         pAddrDecWin->target = mvCtrlTargetGet(&targetAttrib);
 326
 327         /* Check if window is enabled   */
 328         if((MV_REG_READ(MV_TSU_WIN_CTRL_REG(winNum)) & TSU_WIN_CTRL_EN_MASK))
 329         {
 330                 pAddrDecWin->enable = MV_TRUE;
 331         }
 332         else
 333         {
 334                 pAddrDecWin->enable = MV_FALSE;
 335         }
 336
 337         return MV_OK;
 338 }
 339
 340
 341 /*******************************************************************************
 342 * mvTsuWinEnable
 343 *
 344 * DESCRIPTION:
 345 *       This function enable/disable a TSU to target address window.
 346 *       According to parameter 'enable' the routine will enable the
 347 *       window, thus enabling TSU accesses (before enabling the window it is
 348 *       tested for overlapping). Otherwise, the window will be disabled.
 349 *
 350 * INPUT:
 351 *       winNum - TSU to target address decode window number.
 352 *       enable - Enable / disable parameter.
 353 *
 354 * OUTPUT:
 355 *       N/A
 356 *
 357 * RETURN:
 358 *       MV_ERROR if decode window number was wrong or enabled window overlapps.
 359 *
 360 *******************************************************************************/
 361 MV_STATUS mvTsuWinEnable(MV_U32 winNum,MV_BOOL enable)
 362 {
 363         MV_TSU_DEC_WIN addrDecWin;
 364
 365         /* Parameter checking   */
 366         if(winNum >= TSU_MAX_DECODE_WIN)
 367         {
 368                 mvOsPrintf("mvTsuWinEnable: ERR. Invalid winNum%d\n",winNum);
 369                 return MV_ERROR;
 370         }
 371
 372         if(enable == MV_TRUE)
 373         {
 374                 /* First check for overlap with other enabled windows   */
 375                 /* Get current window.                                  */
 376                 if(MV_OK != mvTsuWinGet(winNum,&addrDecWin))
 377                 {
 378                         mvOsPrintf("mvTsuWinEnable: ERR. targetWinGet fail\n");
 379                         return MV_ERROR;
 380                 }
 381                 /* Check for overlapping.       */
 382                 if(MV_FALSE == tsuWinOverlapDetect(winNum,&(addrDecWin.addrWin)))
 383                 {
 384                         /* No Overlap. Enable address decode target window   */
 385                         MV_REG_BIT_SET(MV_TSU_WIN_CTRL_REG(winNum),
 386                                        TSU_WIN_CTRL_EN_MASK);
 387                 }
 388                 else
 389                 {
 390                         /* Overlap detected */
 391                         mvOsPrintf("mvTsuWinEnable: ERR. Overlap detected\n");
 392                         return MV_ERROR;
 393                 }
 394         }
 395         else
 396         {
 397                 /* Disable address decode target window */
 398                 MV_REG_BIT_RESET(MV_TSU_WIN_CTRL_REG(winNum),
 399                                  TSU_WIN_CTRL_EN_MASK);
 400         }
 401         return MV_OK;
 402 }
 403
 404 /*******************************************************************************
 405 * mvTsuWinTargetGet
 406 *
 407 * DESCRIPTION:
 408 *       Get Window number associated with target
 409 *
 410 * INPUT:
 411 *       target  - Target ID to get the window number for.
 412 * OUTPUT:
 413 *
 414 * RETURN:
 415 *       window number or 0xFFFFFFFF on error.
 416 *
 417 *******************************************************************************/
 418 MV_U32  mvTsuWinTargetGet(MV_TARGET target)
 419 {
 420         MV_TSU_DEC_WIN decWin;
 421         MV_U32 winNum;
 422
 423         /* Check parameters */
 424         if(target >= MAX_TARGETS)
 425         {
 426                 mvOsPrintf("mvTsuWinTargetGet: target %d is Illigal\n", target);
 427                 return 0xffffffff;
 428         }
 429
 430         for(winNum = 0; winNum < TSU_MAX_DECODE_WIN; winNum++)
 431         {
 432                 if(mvTsuWinGet(winNum,&decWin) != MV_OK)
 433                 {
 434                         mvOsPrintf("mvTsuWinGet: window returned error\n");
 435                         return 0xffffffff;
 436                 }
 437
 438                 if (decWin.enable == MV_TRUE)
 439                 {
 440                         if(decWin.target == target)
 441                         {
 442                                 return winNum;
 443                         }
 444                 }
 445         }
 446         return 0xFFFFFFFF;
 447 }
 448
 449
 450 /*******************************************************************************
 451 * tsuWinOverlapDetect
 452 *
 453 * DESCRIPTION:
 454 *       Detect TSU address windows overlapping
 455 *       An unpredicted behaviur is expected in case TSU address decode
 456 *       windows overlapps.
 457 *       This function detects TSU address decode windows overlapping of a
 458 *       specified window. The function does not check the window itself for
 459 *       overlapping. The function also skipps disabled address decode windows.
 460 *
 461 * INPUT:
 462 *       winNum      - address decode window number.
 463 *       pAddrDecWin - An address decode window struct.
 464 *
 465 * OUTPUT:
 466 *       None.
 467 *
 468 * RETURN:
 469 *       MV_TRUE if the given address window overlap current address
 470 *       decode map, MV_FALSE otherwise, MV_ERROR if reading invalid data
 471 *       from registers.
 472 *
 473 *******************************************************************************/
 474 static MV_STATUS tsuWinOverlapDetect(MV_U32 winNum, MV_ADDR_WIN *pAddrWin)
 475 {
 476         MV_U32              ctrlReg;
 477         MV_U32              winNumIndex;
 478         MV_TSU_DEC_WIN      addrDecWin;
 479
 480         for(winNumIndex = 0; winNumIndex < TSU_MAX_DECODE_WIN; winNumIndex++)
 481         {
 482                 /* Do not check window itself           */
 483                 if(winNumIndex == winNum)
 484                 {
 485                         continue;
 486                 }
 487
 488                 /* Do not check disabled windows        */
 489                 ctrlReg = MV_REG_READ(MV_TSU_WIN_CTRL_REG(winNumIndex));
 490                 if((ctrlReg & TSU_WIN_CTRL_EN_MASK) == 0)
 491                 {
 492                         continue;
 493                 }
 494
 495                 /* Get window parameters        */
 496                 if (MV_OK != mvTsuWinGet(winNumIndex, &addrDecWin))
 497                 {
 498                         mvOsPrintf("tsuWinOverlapDetect: ERR. mvTsuWinGet failed\n");
 499                         return MV_ERROR;
 500                 }
 501
 502                 if (MV_TRUE == ctrlWinOverlapTest(pAddrWin, &(addrDecWin.addrWin)))
 503                 {
 504                         return MV_TRUE;
 505                 }
 506         }
 507         return MV_FALSE;
 508 }
 509
 510
 511 /*******************************************************************************
 512 * mvTsuAddrDecShow
 513 *
 514 * DESCRIPTION:
 515 *       Print the TSU address decode map.
 516 *
 517 * INPUT:
 518 *       None.
 519 *
 520 * OUTPUT:
 521 *       None.
 522 *
 523 * RETURN:
 524 *       None.
 525 *
 526 *******************************************************************************/
 527 void mvTsuAddrDecShow(void)
 528 {
 529         MV_TSU_DEC_WIN  win;
 530         int             i;
 531
 532         if (MV_FALSE == mvCtrlPwrClckGet(TS_UNIT_ID, 0))
 533                 return;
 534
 535         mvOsOutput( "\n" );
 536         mvOsOutput( "TSU:\n");
 537         mvOsOutput( "----\n" );
 538
 539         for(i = 0; i < TSU_MAX_DECODE_WIN; i++)
 540         {
 541                 memset(&win, 0, sizeof(TSU_MAX_DECODE_WIN));
 542                 mvOsOutput( "win%d - ", i );
 543
 544                 if(mvTsuWinGet(i, &win ) == MV_OK )
 545                 {
 546                         if(win.enable == MV_TRUE)
 547                         {
 548                                 mvOsOutput("%s base %08x, ",
 549                                            mvCtrlTargetNameGet(win.target),
 550                                            win.addrWin.baseLow);
 551                                 mvOsOutput( "...." );
 552                                 mvSizePrint(win.addrWin.size );
 553                                 mvOsOutput( "\n" );
 554                         }
 555                         else
 556                         {
 557                                 mvOsOutput( "disable\n" );
 558                         }
 559                 }
 560         }
 561         return;
 562 }
 563
 564
 565 /*******************************************************************************
 566 * mvTsuInit
 567 *
 568 * DESCRIPTION:
 569 *       Initialize the TSU unit, and get unit out of reset.
 570 *
 571 * INPUT:
 572 *       coreClock       - The core clock at which the TSU should operate.
 573 *       mode            - The mode on configure the unit into (serial/parallel).
 574 *       memHandle       - Memory handle used for memory allocations.
 575 * OUTPUT:
 576 *       None.
 577 * RETURN:
 578 *       MV_OK   - on success,
 579 *
 580 *******************************************************************************/
 581 MV_STATUS mvTsuInit(MV_TSU_CORE_CLOCK coreClock, MV_TSU_PORTS_MODE mode,
 582                     void *osHandle)
 583 {
 584         MV_STATUS status;
 585
 586         status = mvTsuWinInit();
 587         if(status == MV_OK)
 588                 status = mvTsuHalInit(coreClock,mode,osHandle);
 589
 590         return status;
 591 }