7 * Technology ECC byte support for registered DDR3
9 * @xrefitem bom "File Content Label" "Release Content"
11 * @e sub-project: (Mem/Tech/DDR3)
12 * @e \$Revision: 56279 $ @e \$Date: 2011-07-11 13:11:28 -0600 (Mon, 11 Jul 2011) $
15 /*****************************************************************************
17 * Copyright (C) 2012 Advanced Micro Devices, Inc.
18 * All rights reserved.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions are met:
22 * * Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * * Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 * * Neither the name of Advanced Micro Devices, Inc. nor the names of
28 * its contributors may be used to endorse or promote products derived
29 * from this software without specific prior written permission.
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
33 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
34 * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
35 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
36 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
38 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
39 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
40 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 * ***************************************************************************
47 *----------------------------------------------------------------------------
50 *----------------------------------------------------------------------------
62 #define FILECODE PROC_MEM_TECH_DDR3_MTTECC3_FILECODE
63 /*----------------------------------------------------------------------------
64 * DEFINITIONS AND MACROS
66 *----------------------------------------------------------------------------
69 /*----------------------------------------------------------------------------
70 * TYPEDEFS AND STRUCTURES
72 *----------------------------------------------------------------------------
75 /*----------------------------------------------------------------------------
76 * PROTOTYPES OF LOCAL FUNCTIONS
78 *----------------------------------------------------------------------------
81 /*----------------------------------------------------------------------------
84 *----------------------------------------------------------------------------
87 /* -----------------------------------------------------------------------------*/
90 * This function sets the DQS ECC timings for registered DDR3
92 * @param[in,out] *TechPtr - Pointer to the MEM_TECH_BLOCK
94 * @return TRUE - No fatal error occurs.
95 * @return FALSE - Fatal error occurs.
99 MemTSetDQSEccTmgsRDdr3 (
100 IN OUT MEM_TECH_BLOCK *TechPtr
114 CH_DEF_STRUCT *ChannelPtr;
116 EccByte = TechPtr->MaxByteLanes ();
117 NBPtr = TechPtr->NBPtr;
119 if (NBPtr->MCTPtr->NodeMemSize) {
120 for (Dct = 0; Dct < NBPtr->DctCount; Dct++) {
121 NBPtr->SwitchDCT (NBPtr, Dct);
122 if (NBPtr->DCTPtr->Timings.DctMemSize != 0) {
123 ChannelPtr = NBPtr->ChannelPtr;
124 for (Dimm = 0; Dimm < MAX_DIMMS_PER_CHANNEL; Dimm++) {
125 if (NBPtr->DCTPtr->Timings.CsEnabled & ((UINT16)3 << (Dimm * 2))) {
126 i = Dimm * TechPtr->DlyTableWidth ();
127 WrDqsDly = &ChannelPtr->WrDqsDlys[i];
128 RcvEnDly = &ChannelPtr->RcvEnDlys[i];
129 RdDqsDly = &ChannelPtr->RdDqsDlys[i];
130 WrDatDly = &ChannelPtr->WrDatDlys[i];
131 // Receiver DQS Enable:
132 // Receiver DQS enable for ECC bytelane = Receiver DQS enable for bytelane 3 -
133 // [write DQS for bytelane 3 - write DQS for ECC]
135 TempValue = (INT16) RcvEnDly[3] - (INT16) (WrDqsDly[3] - WrDqsDly[EccByte]);
139 RcvEnDly[EccByte] = (UINT16) TempValue;
142 // Read DQS for ECC bytelane = read DQS of byte lane 3
144 RdDqsDly[EccByte] = RdDqsDly[3];
147 // Write Data for ECC bytelane = Write DQS for ECC +
148 // [write data for bytelane 3 - Write DQS for bytelane 3]
149 TempValue = (INT16) (WrDqsDly[EccByte] + (INT8) (WrDatDly[3] - WrDqsDly[3]));
153 WrDatDly[EccByte] = (UINT8) TempValue;
155 NBPtr->SetTrainDly (NBPtr, AccessRcvEnDly, DIMM_BYTE_ACCESS (Dimm, EccByte), RcvEnDly[EccByte]);
156 NBPtr->SetTrainDly (NBPtr, AccessRdDqsDly, DIMM_BYTE_ACCESS (Dimm, EccByte), RdDqsDly[EccByte]);
157 NBPtr->SetTrainDly (NBPtr, AccessWrDatDly, DIMM_BYTE_ACCESS (Dimm, EccByte), WrDatDly[EccByte]);
163 return (BOOLEAN) (NBPtr->MCTPtr->ErrCode < AGESA_FATAL);