target/linux/generic-2.6/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvSysUsb.c

   1 /*******************************************************************************
   2 Copyright (C) Marvell International Ltd. and its affiliates
   3
   4 This software file (the "File") is owned and distributed by Marvell
   5 International Ltd. and/or its affiliates ("Marvell") under the following
   6 alternative licensing terms.  Once you have made an election to distribute the
   7 File under one of the following license alternatives, please (i) delete this
   8 introductory statement regarding license alternatives, (ii) delete the two
   9 license alternatives that you have not elected to use and (iii) preserve the
  10 Marvell copyright notice above.
  11
  12 ********************************************************************************
  13 Marvell Commercial License Option
  14
  15 If you received this File from Marvell and you have entered into a commercial
  16 license agreement (a "Commercial License") with Marvell, the File is licensed
  17 to you under the terms of the applicable Commercial License.
  18
  19 ********************************************************************************
  20 Marvell GPL License Option
  21
  22 If you received this File from Marvell, you may opt to use, redistribute and/or
  23 modify this File in accordance with the terms and conditions of the General
  24 Public License Version 2, June 1991 (the "GPL License"), a copy of which is
  25 available along with the File in the license.txt file or by writing to the Free
  26 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or
  27 on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
  28
  29 THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED
  30 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY
  31 DISCLAIMED.  The GPL License provides additional details about this warranty
  32 disclaimer.
  33 ********************************************************************************
  34 Marvell BSD License Option
  35
  36 If you received this File from Marvell, you may opt to use, redistribute and/or
  37 modify this File under the following licensing terms.
  38 Redistribution and use in source and binary forms, with or without modification,
  39 are 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
  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 #include "ctrlEnv/sys/mvSysUsb.h"
  66
  67 MV_TARGET usbAddrDecPrioTab[] =
  68 {
  69 #if defined(MV_INCLUDE_SDRAM_CS0)
  70     SDRAM_CS0,
  71 #endif
  72 #if defined(MV_INCLUDE_SDRAM_CS1)
  73     SDRAM_CS1,
  74 #endif
  75 #if defined(MV_INCLUDE_SDRAM_CS2)
  76     SDRAM_CS2,
  77 #endif
  78 #if defined(MV_INCLUDE_SDRAM_CS3)
  79     SDRAM_CS3,
  80 #endif
  81 #if defined(MV_INCLUDE_CESA) && defined(USB_UNDERRUN_WA)
  82     CRYPT_ENG,
  83 #endif
  84 #if defined(MV_INCLUDE_PEX)
  85     PEX0_MEM,
  86 #endif
  87     TBL_TERM
  88 };
  89
  90
  91
  92 MV_STATUS   mvUsbInit(int dev, MV_BOOL isHost)
  93 {
  94     MV_STATUS       status;
  95
  96     status = mvUsbWinInit(dev);
  97     if(status != MV_OK)
  98         return status;
  99
 100     return mvUsbHalInit(dev, isHost);
 101 }
 102
 103
 104 /*******************************************************************************
 105 * usbWinOverlapDetect - Detect USB address windows overlapping
 106 *
 107 * DESCRIPTION:
 108 *       An unpredicted behaviur is expected in case USB address decode
 109 *       windows overlapps.
 110 *       This function detects USB address decode windows overlapping of a
 111 *       specified window. The function does not check the window itself for
 112 *       overlapping. The function also skipps disabled address decode windows.
 113 *
 114 * INPUT:
 115 *       winNum      - address decode window number.
 116 *       pAddrDecWin - An address decode window struct.
 117 *
 118 * OUTPUT:
 119 *       None.
 120 *
 121 * RETURN:
 122 *       MV_TRUE if the given address window overlap current address
 123 *       decode map, MV_FALSE otherwise, MV_ERROR if reading invalid data
 124 *       from registers.
 125 *
 126 *******************************************************************************/
 127 static MV_STATUS usbWinOverlapDetect(int dev, MV_U32 winNum,
 128                                      MV_ADDR_WIN *pAddrWin)
 129 {
 130     MV_U32          winNumIndex;
 131     MV_DEC_WIN      addrDecWin;
 132
 133     for(winNumIndex=0; winNumIndex<MV_USB_MAX_ADDR_DECODE_WIN; winNumIndex++)
 134     {
 135         /* Do not check window itself       */
 136         if (winNumIndex == winNum)
 137         {
 138             continue;
 139         }
 140
 141         /* Get window parameters    */
 142         if (MV_OK != mvUsbWinGet(dev, winNumIndex, &addrDecWin))
 143         {
 144             mvOsPrintf("%s: ERR. TargetWinGet failed\n", __FUNCTION__);
 145             return MV_ERROR;
 146         }
 147
 148         /* Do not check disabled windows    */
 149         if(addrDecWin.enable == MV_FALSE)
 150         {
 151             continue;
 152         }
 153
 154         if (MV_TRUE == ctrlWinOverlapTest(pAddrWin, &(addrDecWin.addrWin)))
 155         {
 156             return MV_TRUE;
 157         }
 158     }
 159     return MV_FALSE;
 160 }
 161
 162 /*******************************************************************************
 163 * mvUsbWinSet - Set USB target address window
 164 *
 165 * DESCRIPTION:
 166 *       This function sets a peripheral target (e.g. SDRAM bank0, PCI_MEM0)
 167 *       address window, also known as address decode window.
 168 *       After setting this target window, the USB will be able to access the
 169 *       target within the address window.
 170 *
 171 * INPUT:
 172 *       winNum      - USB target address decode window number.
 173 *       pAddrDecWin - USB target window data structure.
 174 *
 175 * OUTPUT:
 176 *       None.
 177 *
 178 * RETURN:
 179 *       MV_ERROR if address window overlapps with other address decode windows.
 180 *       MV_BAD_PARAM if base address is invalid parameter or target is
 181 *       unknown.
 182 *
 183 *******************************************************************************/
 184 MV_STATUS mvUsbWinSet(int dev, MV_U32 winNum, MV_DEC_WIN *pDecWin)
 185 {
 186     MV_DEC_WIN_PARAMS   winParams;
 187     MV_U32              sizeReg, baseReg;
 188
 189     /* Parameter checking   */
 190     if (winNum >= MV_USB_MAX_ADDR_DECODE_WIN)
 191     {
 192         mvOsPrintf("%s: ERR. Invalid win num %d\n",__FUNCTION__, winNum);
 193         return MV_BAD_PARAM;
 194     }
 195
 196     /* Check if the requested window overlapps with current windows         */
 197     if (MV_TRUE == usbWinOverlapDetect(dev, winNum, &pDecWin->addrWin))
 198     {
 199         mvOsPrintf("%s: ERR. Window %d overlap\n", __FUNCTION__, winNum);
 200         return MV_ERROR;
 201     }
 202
 203     /* check if address is aligned to the size */
 204     if(MV_IS_NOT_ALIGN(pDecWin->addrWin.baseLow, pDecWin->addrWin.size))
 205     {
 206         mvOsPrintf("mvUsbWinSet:Error setting USB window %d to "\
 207                    "target %s.\nAddress 0x%08x is unaligned to size 0x%x.\n",
 208                    winNum,
 209                    mvCtrlTargetNameGet(pDecWin->target),
 210                    pDecWin->addrWin.baseLow,
 211                    pDecWin->addrWin.size);
 212         return MV_ERROR;
 213     }
 214
 215     if(MV_OK != mvCtrlAddrDecToParams(pDecWin, &winParams))
 216     {
 217         mvOsPrintf("%s: mvCtrlAddrDecToParams Failed\n", __FUNCTION__);
 218         return MV_ERROR;
 219     }
 220
 221     /* set Size, Attributes and TargetID */
 222     sizeReg = (((winParams.targetId << MV_USB_WIN_TARGET_OFFSET) & MV_USB_WIN_TARGET_MASK) |
 223                ((winParams.attrib   << MV_USB_WIN_ATTR_OFFSET)   & MV_USB_WIN_ATTR_MASK)   |
 224                ((winParams.size << MV_USB_WIN_SIZE_OFFSET) & MV_USB_WIN_SIZE_MASK));
 225
 226 #if defined(MV645xx) || defined(MV646xx)
 227     /* If window is DRAM with HW cache coherency, make sure bit2 is set */
 228     sizeReg &= ~MV_USB_WIN_BURST_WR_LIMIT_MASK;
 229
 230     if((MV_TARGET_IS_DRAM(pDecWin->target)) &&
 231        (pDecWin->addrWinAttr.cachePolicy != NO_COHERENCY))
 232     {
 233         sizeReg |= MV_USB_WIN_BURST_WR_32BIT_LIMIT;
 234     }
 235     else
 236     {
 237         sizeReg |= MV_USB_WIN_BURST_WR_NO_LIMIT;
 238     }
 239 #endif /* MV645xx || MV646xx */
 240
 241     if (pDecWin->enable == MV_TRUE)
 242     {
 243         sizeReg |= MV_USB_WIN_ENABLE_MASK;
 244     }
 245     else
 246     {
 247         sizeReg &= ~MV_USB_WIN_ENABLE_MASK;
 248     }
 249
 250     /* Update Base value  */
 251     baseReg = (winParams.baseAddr & MV_USB_WIN_BASE_MASK);
 252
 253     MV_REG_WRITE( MV_USB_WIN_CTRL_REG(dev, winNum), sizeReg);
 254     MV_REG_WRITE( MV_USB_WIN_BASE_REG(dev, winNum), baseReg);
 255
 256     return MV_OK;
 257 }
 258
 259 /*******************************************************************************
 260 * mvUsbWinGet - Get USB peripheral target address window.
 261 *
 262 * DESCRIPTION:
 263 *       Get USB peripheral target address window.
 264 *
 265 * INPUT:
 266 *       winNum - USB target address decode window number.
 267 *
 268 * OUTPUT:
 269 *       pDecWin - USB target window data structure.
 270 *
 271 * RETURN:
 272 *       MV_ERROR if register parameters are invalid.
 273 *
 274 *******************************************************************************/
 275 MV_STATUS mvUsbWinGet(int dev, MV_U32 winNum, MV_DEC_WIN *pDecWin)
 276 {
 277     MV_DEC_WIN_PARAMS   winParam;
 278     MV_U32              sizeReg, baseReg;
 279
 280     /* Parameter checking   */
 281     if (winNum >= MV_USB_MAX_ADDR_DECODE_WIN)
 282     {
 283         mvOsPrintf("%s (dev=%d): ERR. Invalid winNum %d\n",
 284                     __FUNCTION__, dev, winNum);
 285         return MV_NOT_SUPPORTED;
 286     }
 287
 288     baseReg = MV_REG_READ( MV_USB_WIN_BASE_REG(dev, winNum) );
 289     sizeReg = MV_REG_READ( MV_USB_WIN_CTRL_REG(dev, winNum) );
 290
 291    /* Check if window is enabled   */
 292     if(sizeReg & MV_USB_WIN_ENABLE_MASK)
 293     {
 294         pDecWin->enable = MV_TRUE;
 295
 296         /* Extract window parameters from registers */
 297         winParam.targetId = (sizeReg & MV_USB_WIN_TARGET_MASK) >> MV_USB_WIN_TARGET_OFFSET;
 298         winParam.attrib   = (sizeReg & MV_USB_WIN_ATTR_MASK) >> MV_USB_WIN_ATTR_OFFSET;
 299         winParam.size     = (sizeReg & MV_USB_WIN_SIZE_MASK) >> MV_USB_WIN_SIZE_OFFSET;
 300         winParam.baseAddr = (baseReg & MV_USB_WIN_BASE_MASK);
 301
 302         /* Translate the decode window parameters to address decode struct */
 303         if (MV_OK != mvCtrlParamsToAddrDec(&winParam, pDecWin))
 304         {
 305             mvOsPrintf("Failed to translate register parameters to USB address" \
 306                        " decode window structure\n");
 307             return MV_ERROR;
 308         }
 309     }
 310     else
 311     {
 312         pDecWin->enable = MV_FALSE;
 313     }
 314     return MV_OK;
 315 }
 316
 317 /*******************************************************************************
 318 * mvUsbWinInit -
 319 *
 320 * INPUT:
 321 *
 322 * OUTPUT:
 323 *
 324 * RETURN:
 325 *       MV_ERROR if register parameters are invalid.
 326 *
 327 *******************************************************************************/
 328 MV_STATUS   mvUsbWinInit(int dev)
 329 {
 330     MV_STATUS       status;
 331     MV_DEC_WIN      usbWin;
 332     MV_CPU_DEC_WIN  cpuAddrDecWin;
 333     int             winNum;
 334     MV_U32          winPrioIndex = 0;
 335
 336     /* First disable all address decode windows */
 337     for(winNum = 0; winNum < MV_USB_MAX_ADDR_DECODE_WIN; winNum++)
 338     {
 339         MV_REG_BIT_RESET(MV_USB_WIN_CTRL_REG(dev, winNum), MV_USB_WIN_ENABLE_MASK);
 340     }
 341
 342     /* Go through all windows in user table until table terminator          */
 343     winNum = 0;
 344     while( (usbAddrDecPrioTab[winPrioIndex] != TBL_TERM) &&
 345            (winNum < MV_USB_MAX_ADDR_DECODE_WIN) )
 346     {
 347         /* first get attributes from CPU If */
 348         status = mvCpuIfTargetWinGet(usbAddrDecPrioTab[winPrioIndex],
 349                                      &cpuAddrDecWin);
 350
 351         if(MV_NO_SUCH == status)
 352         {
 353             winPrioIndex++;
 354             continue;
 355         }
 356         if (MV_OK != status)
 357         {
 358             mvOsPrintf("%s: ERR. mvCpuIfTargetWinGet failed\n", __FUNCTION__);
 359             return MV_ERROR;
 360         }
 361
 362         if (cpuAddrDecWin.enable == MV_TRUE)
 363         {
 364             usbWin.addrWin.baseHigh = cpuAddrDecWin.addrWin.baseHigh;
 365             usbWin.addrWin.baseLow  = cpuAddrDecWin.addrWin.baseLow;
 366             usbWin.addrWin.size     = cpuAddrDecWin.addrWin.size;
 367             usbWin.enable           = MV_TRUE;
 368             usbWin.target           = usbAddrDecPrioTab[winPrioIndex];
 369
 370 #if defined(MV645xx) || defined(MV646xx)
 371             /* Get the default attributes for that target window */
 372             mvCtrlDefAttribGet(usbWin.target, &usbWin.addrWinAttr);
 373 #endif /* MV645xx || MV646xx */
 374
 375             if(MV_OK != mvUsbWinSet(dev, winNum, &usbWin))
 376             {
 377                 return MV_ERROR;
 378             }
 379             winNum++;
 380         }
 381         winPrioIndex++;
 382     }
 383     return MV_OK;
 384 }
 385
 386 /*******************************************************************************
 387 * mvUsbAddrDecShow - Print the USB address decode map.
 388 *
 389 * DESCRIPTION:
 390 *       This function print the USB address decode map.
 391 *
 392 * INPUT:
 393 *       None.
 394 *
 395 * OUTPUT:
 396 *       None.
 397 *
 398 * RETURN:
 399 *       None.
 400 *
 401 *******************************************************************************/
 402 MV_VOID mvUsbAddrDecShow(MV_VOID)
 403 {
 404     MV_DEC_WIN  addrDecWin;
 405     int         i, winNum;
 406
 407     mvOsOutput( "\n" );
 408     mvOsOutput( "USB:\n" );
 409     mvOsOutput( "----\n" );
 410
 411     for(i=0; i<mvCtrlUsbMaxGet(); i++)
 412     {
 413         mvOsOutput( "Device %d:\n", i);
 414
 415         for(winNum = 0; winNum < MV_USB_MAX_ADDR_DECODE_WIN; winNum++)
 416         {
 417             memset(&addrDecWin, 0, sizeof(MV_DEC_WIN) );
 418
 419             mvOsOutput( "win%d - ", winNum );
 420
 421             if( mvUsbWinGet(i, winNum, &addrDecWin ) == MV_OK )
 422             {
 423                 if( addrDecWin.enable )
 424                 {
 425                     mvOsOutput( "%s base %08x, ",
 426                         mvCtrlTargetNameGet(addrDecWin.target), addrDecWin.addrWin.baseLow );
 427
 428                     mvSizePrint( addrDecWin.addrWin.size );
 429
 430 #if defined(MV645xx) || defined(MV646xx)
 431                     switch( addrDecWin.addrWinAttr.swapType)
 432                     {
 433                         case MV_BYTE_SWAP:
 434                             mvOsOutput( "BYTE_SWAP, " );
 435                             break;
 436                         case MV_NO_SWAP:
 437                             mvOsOutput( "NO_SWAP  , " );
 438                             break;
 439                         case MV_BYTE_WORD_SWAP:
 440                             mvOsOutput( "BYTE_WORD_SWAP, " );
 441                             break;
 442                         case MV_WORD_SWAP:
 443                             mvOsOutput( "WORD_SWAP, " );
 444                             break;
 445                         default:
 446                             mvOsOutput( "SWAP N/A , " );
 447                     }
 448
 449                     switch( addrDecWin.addrWinAttr.cachePolicy )
 450                     {
 451                         case NO_COHERENCY:
 452                             mvOsOutput( "NO_COHERENCY , " );
 453                             break;
 454                         case WT_COHERENCY:
 455                             mvOsOutput( "WT_COHERENCY , " );
 456                             break;
 457                         case WB_COHERENCY:
 458                             mvOsOutput( "WB_COHERENCY , " );
 459                             break;
 460                         default:
 461                             mvOsOutput( "COHERENCY N/A, " );
 462                     }
 463
 464                     switch( addrDecWin.addrWinAttr.pcixNoSnoop )
 465                     {
 466                         case 0:
 467                             mvOsOutput( "PCI-X NS inactive, " );
 468                             break;
 469                         case 1:
 470                             mvOsOutput( "PCI-X NS active  , " );
 471                             break;
 472                         default:
 473                             mvOsOutput( "PCI-X NS N/A     , " );
 474                     }
 475
 476                     switch( addrDecWin.addrWinAttr.p2pReq64 )
 477                     {
 478                         case 0:
 479                             mvOsOutput( "REQ64 force" );
 480                             break;
 481                         case 1:
 482                             mvOsOutput( "REQ64 detect" );
 483                             break;
 484                         default:
 485                             mvOsOutput( "REQ64 N/A" );
 486                     }
 487 #endif /* MV645xx || MV646xx */
 488                     mvOsOutput( "\n" );
 489                 }
 490                 else
 491                     mvOsOutput( "disable\n" );
 492             }
 493         }
 494     }
 495 }
 496
 497