text: /* $NoKeywords:$ */
  /**
   * @file
   *
   * mttecc.c
   *
   * Technology ECC byte support
   *
   * @xrefitem bom "File Content Label" "Release Content"
   * @e project: AGESA
   * @e sub-project: (Mem/Tech)
   * @e \$Revision: 35136 $ @e \$Date: 2010-07-16 11:29:48 +0800 (Fri, 16 Jul 2010) $
   *
   **/
  /*
   *****************************************************************************
   *
   * Copyright (c) 2011, Advanced Micro Devices, Inc.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above copyright
   *       notice, this list of conditions and the following disclaimer in the
   *       documentation and/or other materials provided with the distribution.
   *     * Neither the name of Advanced Micro Devices, Inc. nor the names of
   *       its contributors may be used to endorse or promote products derived
   *       from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * ***************************************************************************
   *
   */
  
  /*
   *----------------------------------------------------------------------------
   *                                MODULES USED
   *
   *----------------------------------------------------------------------------
   */
  
  
  #include "AGESA.h"
  #include "Ids.h"
  #include "mm.h"
  #include "mn.h"
  #include "mu.h"
  #include "mt.h"
  #include "Filecode.h"
  CODE_GROUP (G1_PEICC)
  RDATA_GROUP (G1_PEICC)
  
  #define FILECODE PROC_MEM_TECH_MTTECC_FILECODE
  /*----------------------------------------------------------------------------
   *                          DEFINITIONS AND MACROS
   *
   *----------------------------------------------------------------------------
   */
  
  /*----------------------------------------------------------------------------
   *                           TYPEDEFS AND STRUCTURES
   *
   *----------------------------------------------------------------------------
   */
  
  /*----------------------------------------------------------------------------
   *                        PROTOTYPES OF LOCAL FUNCTIONS
   *
   *----------------------------------------------------------------------------
   */
  
  VOID
  STATIC
  MemTCalcDQSEccTmg (
    IN OUT   MEM_TECH_BLOCK *TechPtr,
    IN       UINT8 Dimm,
    IN       UINT8 Type,
    IN OUT   VOID  *DlyArray
    );
  
  /*----------------------------------------------------------------------------
   *                            EXPORTED FUNCTIONS
   *
   *----------------------------------------------------------------------------
   */
  
  /* -----------------------------------------------------------------------------*/
  /**
   *
   *   This function sets the DQS ECC timings
   *
   *     @param[in,out]   *TechPtr   - Pointer to the MEM_TECH_BLOCK
   *
   *     @return          TRUE -  No fatal error occurs.
   *     @return          FALSE - Fatal error occurs.
   */
  
  BOOLEAN
  MemTSetDQSEccTmgs (
    IN OUT   MEM_TECH_BLOCK *TechPtr
    )
  {
    UINT8 Dct;
    UINT8 Dimm;
    UINT8 i;
  
    MEM_NB_BLOCK *NBPtr;
    CH_DEF_STRUCT *ChannelPtr;
  
    NBPtr = TechPtr->NBPtr;
    if (NBPtr->MCTPtr->NodeMemSize) {
      for (Dct = 0; Dct < NBPtr->DctCount; Dct++) {
        NBPtr->SwitchDCT (NBPtr, Dct);
        if (NBPtr->DCTPtr->Timings.DctMemSize != 0) {
          ChannelPtr = NBPtr->ChannelPtr;
          for (Dimm = 0; Dimm < MAX_DIMMS_PER_CHANNEL; Dimm++) {
            if (NBPtr->DCTPtr->Timings.CsEnabled & ((UINT16)1 << (Dimm * 2))) {
              i = Dimm * TechPtr->DlyTableWidth ();
              MemTCalcDQSEccTmg (TechPtr, Dimm, AccessRcvEnDly, &ChannelPtr->RcvEnDlys[i]);
              MemTCalcDQSEccTmg (TechPtr, Dimm, AccessRdDqsDly, &ChannelPtr->RdDqsDlys[i]);
              MemTCalcDQSEccTmg (TechPtr, Dimm, AccessWrDatDly, &ChannelPtr->WrDatDlys[i]);
            }
          }
        }
      }
    }
    return (BOOLEAN) (NBPtr->MCTPtr->ErrCode < AGESA_FATAL);
  }
  
  /*----------------------------------------------------------------------------
   *                              LOCAL FUNCTIONS
   *
   *----------------------------------------------------------------------------
   */
  
  /* -----------------------------------------------------------------------------*/
  /**
   *
   *   This function calculates the DQS ECC timings
   *
   *     @param[in,out]   *TechPtr - Pointer to the MEM_TECH_BLOCK
   *     @param[in]       Dimm - Dimm number
   *     @param[in]       Type - Type of DQS timing
   *     @param[in,out]   *DlyArray - Pointer to the array of delays per this Dimm
   *
   */
  
  VOID
  STATIC
  MemTCalcDQSEccTmg (
    IN OUT   MEM_TECH_BLOCK *TechPtr,
    IN       UINT8 Dimm,
    IN       UINT8 Type,
    IN OUT   VOID  *DlyArray
    )
  {
    UINT8 i;
    UINT8 j;
    UINT8 Scale;
    UINT8 EccByte;
    UINT16 ByteiDly;
    UINT16 BytejDly;
    UINT16 EccDly;
    MEM_NB_BLOCK *NBPtr;
    CH_DEF_STRUCT *ChannelPtr;
  
    NBPtr = TechPtr->NBPtr;
    ChannelPtr = NBPtr->ChannelPtr;
  
    EccByte = TechPtr->MaxByteLanes ();
    i = (UINT8) (ChannelPtr->DctEccDqsLike & 0xFF);
    j = (UINT8) (ChannelPtr->DctEccDqsLike >> 8);
    Scale = ChannelPtr->DctEccDqsScale;
  
    if (Type == AccessRcvEnDly) {
      ByteiDly = ((UINT16 *) DlyArray)[i];
      BytejDly = ((UINT16 *) DlyArray)[j];
    } else {
      ByteiDly = ((UINT8 *) DlyArray)[i];
      BytejDly = ((UINT8 *) DlyArray)[j];
    }
  
    if (BytejDly > ByteiDly) {
      EccDly = ByteiDly + (UINT8) (((UINT16) (BytejDly - ByteiDly) * Scale + 0x77) / 0xFF);
      //                                                            Round up --^
    } else {
      EccDly = BytejDly + (UINT8) (((UINT16) (ByteiDly - BytejDly) * (0xFF - Scale) + 0x77) / 0xFF);
      //                                                                     Round up --^
    }
  
    if (Type == AccessRcvEnDly) {
      ((UINT16 *) DlyArray)[EccByte] = EccDly;
    } else {
      ((UINT8 *) DlyArray)[EccByte] = (UINT8) EccDly;
    }
    NBPtr->SetTrainDly (NBPtr, Type, DIMM_BYTE_ACCESS (Dimm, EccByte), EccDly);
  }
  