| /* $NoKeywords:$ */ |
| /** |
| * @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) $ |
| * |
| */ |
| /* |
| ***************************************************************************** |
| * |
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| * |
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| **************************************************************************** |
| */ |
| #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; |
| } |
| } |
| |