src/northbridge/amd/amdmct/mct/mctsrc1p.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007 Advanced Micro Devices, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  18  */
  19
  20
  21 u8 mct_checkNumberOfDqsRcvEn_1Pass(u8 pass)
  22 {
  23         u8 ret = 1;
  24         if (pass == SecondPass)
  25                 ret = 0;
  26
  27         return ret;
  28 }
  29
  30
  31 u32 SetupDqsPattern_1PassA(u8 pass)
  32 {
  33         return (u32) TestPattern1_D;
  34 }
  35
  36
  37 u32 SetupDqsPattern_1PassB(u8 pass)
  38 {
  39         return (u32) TestPattern0_D;
  40 }
  41
  42 u8  mct_Get_Start_RcvrEnDly_1Pass(u8 pass)
  43 {
  44         return 0;
  45 }
  46
  47 static u8 mct_Average_RcvrEnDly_1Pass(struct DCTStatStruc *pDCTstat, u8 Channel, u8 Receiver,
  48                                         u8 Pass)
  49 {
  50         u8 i, MaxValue;
  51         u8 *p;
  52         u8 val;
  53
  54         MaxValue = 0;
  55         p = pDCTstat->CH_D_B_RCVRDLY[Channel][Receiver >> 1];
  56
  57         for(i=0; i < 8; i++) {
  58                 /* get left value from DCTStatStruc.CHA_D0_B0_RCVRDLY*/
  59                 val = p[i];
  60                 /* get right value from DCTStatStruc.CHA_D0_B0_RCVRDLY_1*/
  61                 val += Pass1MemClkDly;
  62                 /* write back the value to stack */
  63                 if (val > MaxValue)
  64                         MaxValue = val;
  65
  66                 p[i] = val;
  67         }
  68 //      pDCTstat->DimmTrainFail &= ~(1<<Receiver+Channel);
  69
  70         return MaxValue;
  71 }
  72
  73 #ifdef UNUSED_CODE
  74 static u8 mct_AdjustFinalDQSRcvValue_1Pass(u8 val_1p, u8 val_2p)
  75 {
  76         return (val_1p & 0xff) + ((val_2p & 0xff)<<8);
  77 }
  78 #endif
  79
  80 u8 mct_SaveRcvEnDly_D_1Pass(struct DCTStatStruc *pDCTstat, u8 pass)
  81 {
  82         u8 ret;
  83         ret = 0;
  84         if((pDCTstat->DqsRcvEn_Pass == 0xff) && (pass== FirstPass))
  85                 ret = 2;
  86         return ret;
  87 }
  88
  89 u8 mct_Average_RcvrEnDly_Pass(struct DCTStatStruc *pDCTstat,
  90                                 u8 RcvrEnDly, u8 RcvrEnDlyLimit,
  91                                 u8 Channel, u8 Receiver, u8 Pass)
  92
  93 {
  94         return mct_Average_RcvrEnDly_1Pass(pDCTstat, Channel, Receiver, Pass);
  95 }