diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/Recovery/Mem/Tech/mrtthrc.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/Recovery/Mem/Tech/mrtthrc.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/Recovery/Mem/Tech/mrtthrc.c b/src/vendorcode/amd/agesa/f14/Proc/Recovery/Mem/Tech/mrtthrc.c new file mode 100644 index 0000000000..0964a53518 --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/Recovery/Mem/Tech/mrtthrc.c @@ -0,0 +1,287 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * mrtthrc.c + * + * Phy assisted DQS receiver enable training + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: (Proc/Recovery/Mem) + * @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 "OptionMemory.h" +#include "amdlib.h" +#include "Ids.h" +#include "mrport.h" +#include "mm.h" +#include "mn.h" +#include "mru.h" +#include "mt.h" +#include "PlatformMemoryConfiguration.h" +#include "Filecode.h" +CODE_GROUP (G2_PEI) +RDATA_GROUP (G2_PEI) + +#define FILECODE PROC_RECOVERY_MEM_TECH_MRTTHRC_FILECODE +/*---------------------------------------------------------------------------- + * DEFINITIONS AND MACROS + * + *---------------------------------------------------------------------------- + */ +#define MAX_BYTELANES 8 /* Max Bytelanes per channel */ + +/*---------------------------------------------------------------------------- + * TYPEDEFS AND STRUCTURES + * + *---------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------- + * PROTOTYPES OF LOCAL FUNCTIONS + * + *---------------------------------------------------------------------------- + */ + +VOID +STATIC +MemRecTPrepareRcvrEnDlySeed ( + IN OUT MEM_TECH_BLOCK *TechPtr, + IN UINT8 ChipSel + ); + +UINT16 +STATIC +MemRecTProgramRcvrEnDly ( + IN OUT MEM_TECH_BLOCK *TechPtr, + IN UINT8 ChipSel + ); + +/*---------------------------------------------------------------------------- + * EXPORTED FUNCTIONS + * + *---------------------------------------------------------------------------- + */ + +/* -----------------------------------------------------------------------------*/ +/** + * + * This function executes Phy assisted receiver enable training for current node. + * + * @param[in,out] *TechPtr - Pointer to the MEM_TECH_BLOCK + * + * @pre Auto refresh and ZQCL must be disabled + * + */ +VOID +MemRecTTrainRcvrEnHw ( + IN OUT MEM_TECH_BLOCK *TechPtr + ) +{ + UINT8 TempBuffer[64]; + UINT8 Count; + UINT32 TestAddrRJ16; + UINT8 ChipSel; + UINT16 MaxRcvrDly; + MEM_NB_BLOCK *NBPtr; + + NBPtr = TechPtr->NBPtr; + + AGESA_TESTPOINT (TpProcMemReceiverEnableTraining , &(NBPtr->MemPtr->StdHeader)); + + // Set environment settings before training + MemRecTBeginTraining (TechPtr); + + ChipSel = NBPtr->DimmToBeUsed << 1; + TestAddrRJ16 = 1 << 21; + + // 1.Prepare the DIMMs for training + NBPtr->SetBitField (NBPtr, BFTrDimmSel, ChipSel >> 1); + + // 2.Prepare the phy for DQS receiver enable training. + MemRecTPrepareRcvrEnDlySeed (TechPtr, ChipSel); + + // 3.BIOS initiates the phy assisted receiver enable training + NBPtr->SetBitField (NBPtr, BFDqsRcvTrEn, 1); + + // 4.BIOS begins sending out of back-to-back reads to create + // a continuous stream of DQS edges on the DDR interface. + for (Count = 0; Count < 3; Count++) { + NBPtr->ReadPattern (NBPtr, TempBuffer, TestAddrRJ16, 64); + } + + // 6.Wait 200 MEMCLKs. + MemRecUWait10ns (200, NBPtr->MemPtr); + + // 7.Program [DqsRcvTrEn]=0 to stop the DQS receive enable training. + NBPtr->SetBitField (NBPtr, BFDqsRcvTrEn, 0); + + // 8.Get the gross and fine delay values. + // 9.Calculate the corresponding final delay values + MaxRcvrDly = MemRecTProgramRcvrEnDly (TechPtr, ChipSel); + + // Set Max Latency for both channels + NBPtr->SetMaxLatency (NBPtr, MaxRcvrDly); + + // Restore environment settings after training + MemRecTEndTraining (TechPtr); +} + + +/* -----------------------------------------------------------------------------*/ +/** + * + * This function calculates RcvEn seed value for each rank + * + * @param[in,out] *TechPtr - Pointer to the MEM_TECH_BLOCK + * @param[in] ChipSel - rank to be trained + * + */ +VOID +STATIC +MemRecTPrepareRcvrEnDlySeed ( + IN OUT MEM_TECH_BLOCK *TechPtr, + IN UINT8 ChipSel + ) +{ + MEM_NB_BLOCK *NBPtr; + CH_DEF_STRUCT *ChannelPtr; + UINT16 SeedTotal; + UINT16 SeedFine; + UINT16 SeedGross; + UINT16 SeedPreGross; + UINT16 DiffSeedGrossSeedPreGross; + UINT8 ByteLane; + UINT16 *PlatEstSeed; + + NBPtr = TechPtr->NBPtr; + ChannelPtr = TechPtr->NBPtr->ChannelPtr; + + // Get platform override seed + PlatEstSeed = (UINT16 *) MemRecFindPSOverrideEntry (NBPtr->RefPtr->PlatformMemoryConfiguration, PSO_RXEN_SEED, NBPtr->MCTPtr->SocketId, ChannelPtr->ChannelID); + + for (ByteLane = 0; ByteLane < 8; ByteLane++) { + // For Pass1, BIOS starts with the delay value obtained from the first pass of write + // levelization training that was done in DDR3 Training and add a delay value of 3Bh. + SeedTotal = ChannelPtr->WrDqsDlys[((ChipSel >> 1) * MAX_BYTELANES) + ByteLane] + (PlatEstSeed != NULL) ? PlatEstSeed[ByteLane] : 0x3B; + // SeedGross = SeedTotal DIV 32. + SeedGross = (SeedTotal & 0x60) >> 5; + // SeedFine = SeedTotal MOD 32. + SeedFine = SeedTotal & 0x1F; + + // Next, determine the gross component of SeedTotal. SeedGrossPass1=SeedTotal DIV 32. + // Then, determine the fine delay component of SeedTotal. SeedFinePass1=SeedTotal MOD 32. + // Use SeedGrossPass1 to determine SeedPreGrossPass1: + + if ((SeedGross & 0x1) != 0) { + //if SeedGross is odd + SeedPreGross = 1; + } else { + //if SeedGross is even + SeedPreGross = 2; + } + + // (SeedGross - SeedPreGross) + DiffSeedGrossSeedPreGross = SeedGross - SeedPreGross; + + ChannelPtr->RcvEnDlys[(ChipSel * MAX_BYTELANES) + ByteLane] = DiffSeedGrossSeedPreGross << 5; + + //BIOS programs registers F2x[1, 0]9C_x[51:50] and F2x[1, 0]9C_x52) with SeedPreGrossPass1 + //and SeedFinePass1 from the preceding steps. + NBPtr->SetTrainDly (NBPtr, AccessPhRecDly, DIMM_BYTE_ACCESS (ChipSel >> 1, ByteLane), (SeedPreGross << 5) | SeedFine); + + // 202688: Program seed value to RcvEnDly also. + NBPtr->SetTrainDly (NBPtr, AccessRcvEnDly, DIMM_BYTE_ACCESS (ChipSel >> 1, ByteLane), SeedGross << 5); + } +} + +/* -----------------------------------------------------------------------------*/ +/** + * + * This function calculates final RcvrEnDly for each rank + * + * @param[in,out] *TechPtr - Pointer to the MEM_TECH_BLOCK + * @param[in] ChipSel - Rank to be trained + * + * @return MaxDly - The largest delay value + * + */ +UINT16 +STATIC +MemRecTProgramRcvrEnDly ( + IN OUT MEM_TECH_BLOCK *TechPtr, + IN UINT8 ChipSel + ) +{ + MEM_NB_BLOCK *NBPtr; + CH_DEF_STRUCT *ChannelPtr; + UINT16 DiffSeedGrossSeedPreGross; + UINT8 ByteLane; + UINT16 RcvEnDly; + UINT16 MaxDly; + NBPtr = TechPtr->NBPtr; + ChannelPtr = TechPtr->NBPtr->ChannelPtr; + MaxDly = 0; + for (ByteLane = 0; ByteLane < 8; ByteLane++) { + DiffSeedGrossSeedPreGross = (ChannelPtr->RcvEnDlys[(ChipSel * MAX_BYTELANES) + ByteLane]) & 0x1E0; + RcvEnDly = (UINT8) NBPtr->GetTrainDly (NBPtr, AccessPhRecDly, DIMM_BYTE_ACCESS (ChipSel >> 1, ByteLane)); + + RcvEnDly = RcvEnDly + DiffSeedGrossSeedPreGross; + + // Add 1 UI to get to the midpoint of preamble + RcvEnDly += 0x20; + + if (RcvEnDly > MaxDly) { + MaxDly = RcvEnDly; + } + + NBPtr->SetTrainDly (NBPtr, AccessRcvEnDly, DIMM_BYTE_ACCESS ((ChipSel >> 1), ByteLane), RcvEnDly); + } + + return MaxDly; +} + |