| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * Config Fch Imc controller |
| * |
| * Init Imc Controller features. |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: FCH |
| * @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $ |
| * |
| */ |
| /* |
| ***************************************************************************** |
| * |
| * Copyright (c) 2008 - 2012, 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. |
| **************************************************************************** |
| */ |
| #include "FchPlatform.h" |
| #include "Filecode.h" |
| #define FILECODE PROC_FCH_IMC_IMCENV_FILECODE |
| |
| |
| |
| // |
| // Declaration of local functions |
| // |
| |
| |
| /** |
| * FchInitEnvImc - Config Imc controller before PCI emulation |
| * |
| * |
| * |
| * @param[in] FchDataPtr Fch configuration structure pointer. |
| * |
| */ |
| VOID |
| FchInitEnvImc ( |
| IN VOID *FchDataPtr |
| ) |
| { |
| UINT8 PortStatusByte; |
| FCH_DATA_BLOCK *LocalCfgPtr; |
| |
| LocalCfgPtr = (FCH_DATA_BLOCK *) FchDataPtr; |
| |
| GetChipSysMode (&PortStatusByte, LocalCfgPtr->StdHeader); |
| |
| // |
| // Software IMC enable |
| // |
| if (((LocalCfgPtr->Imc.ImcEnableOverWrite == 1) && ((PortStatusByte & ChipSysEcEnable) == 0)) || ((LocalCfgPtr->Imc.ImcEnableOverWrite == 2) && ((PortStatusByte & ChipSysEcEnable) == ChipSysEcEnable))) { |
| if (ValidateImcFirmware (LocalCfgPtr)) { |
| SoftwareToggleImcStrapping (LocalCfgPtr); |
| } |
| } |
| |
| FchInitEnvEc (LocalCfgPtr); |
| } |
| |
| /** |
| * ValidateImcFirmware - Validate IMC Firmware. |
| * |
| * |
| * @param[in] FchDataPtr Fch configuration structure pointer. |
| * |
| * @retval TRUE Pass |
| * @retval FALSE Failed |
| */ |
| BOOLEAN |
| ValidateImcFirmware ( |
| IN VOID *FchDataPtr |
| ) |
| { |
| UINT32 ImcSig; |
| UINT32 ImcSigAddr; |
| UINT32 ImcAddr; |
| UINT32 CurAddr; |
| UINT32 ImcBinSig0; |
| UINT32 ImcBinSig1; |
| UINT16 ImcBinSig2; |
| UINT8 IMCChecksumeByte; |
| UINT8 IMCByte; |
| |
| ImcAddr = 0; |
| |
| // |
| // Software IMC enable |
| // |
| ImcSigAddr = 0x80000; /// start from 512k to 64M |
| ImcSig = 0x0; |
| |
| while ( ( ImcSig != 0x55aa55aa ) && ( ImcSigAddr <= 0x4000000 ) ) { |
| CurAddr = 0xffffffff - ImcSigAddr + 0x20001; |
| ReadMem (CurAddr, AccessWidth32, &ImcSig); |
| ReadMem ((CurAddr + 4), AccessWidth32, &ImcAddr); |
| ImcSigAddr <<= 1; |
| } |
| |
| IMCChecksumeByte = 0xff; |
| |
| if ( ImcSig == 0x55aa55aa ) { |
| // |
| // "_AMD_IMC_C" at offset 0x2000 of the binary |
| // |
| ReadMem ((ImcAddr + 0x2000), AccessWidth32, &ImcBinSig0); |
| ReadMem ((ImcAddr + 0x2004), AccessWidth32, &ImcBinSig1); |
| ReadMem ((ImcAddr + 0x2008), AccessWidth16, &ImcBinSig2); |
| |
| if ((ImcBinSig0 == 0x444D415F) && (ImcBinSig1 == 0x434D495F) && (ImcBinSig2 == 0x435F) ) { |
| IMCChecksumeByte = 0; |
| |
| for ( CurAddr = ImcAddr; CurAddr < ImcAddr + 0x10000; CurAddr++ ) { |
| ReadMem (CurAddr, AccessWidth8, &IMCByte); |
| IMCChecksumeByte = IMCChecksumeByte + IMCByte; |
| } |
| } |
| } |
| |
| if ( IMCChecksumeByte ) { |
| return FALSE; |
| } else { |
| return TRUE; |
| } |
| } |
| |