/** @file
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This file is SampleCode of the library for Intel PCH PEI Policy initialization.
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Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "PeiPchPolicyUpdate.h"
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/HobLib.h>
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#include <Library/PchInfoLib.h>
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#include <Library/SataLib.h>
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#include <Library/PchPcrLib.h>
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#include <Library/PchPcieRpLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PchPolicyLib.h>
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#include <Library/ConfigBlockLib.h>
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//
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// Sawtooth Peak
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// Single SPD EEPROM at 0xA2 serves both C0D0 and C1D0 (LPDDR is 1DPC only)
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//
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#define DIMM_SMB_SPD_P0C0D0_STP 0xA2
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#define DIMM_SMB_SPD_P0C0D1_STP 0xA0
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#define DIMM_SMB_SPD_P0C1D0_STP 0xA2
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#define DIMM_SMB_SPD_P0C1D1_STP 0xA0
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GLOBAL_REMOVE_IF_UNREFERENCED UINT8 mSmbusSTPRsvdAddresses[] = {
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DIMM_SMB_SPD_P0C0D0_STP,
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DIMM_SMB_SPD_P0C0D1_STP,
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DIMM_SMB_SPD_P0C1D0_STP,
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DIMM_SMB_SPD_P0C1D1_STP
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};
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/**
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This function performs PCH PEI Policy initialization.
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@param[in, out] SiPreMemPolicy The SI PREMEM Policy PPI instance
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@retval EFI_SUCCESS The PPI is installed and initialized.
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@retval EFI ERRORS The PPI is not successfully installed.
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@retval EFI_OUT_OF_RESOURCES Do not have enough resources to initialize the driver
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**/
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EFI_STATUS
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EFIAPI
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UpdatePeiPchPolicyPreMem (
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IN OUT SI_PREMEM_POLICY_PPI *SiPreMemPolicy
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)
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{
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EFI_STATUS Status;
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UINT8 *SmBusReservedTable;
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UINT8 SmBusReservedNum;
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PCH_GENERAL_PREMEM_CONFIG *PchGeneralPreMemConfig;
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PCH_TRACE_HUB_PREMEM_CONFIG *PchTraceHubPreMemConfig;
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PCH_SMBUS_PREMEM_CONFIG *SmbusPreMemConfig;
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PCH_LPC_PREMEM_CONFIG *LpcPreMemConfig;
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PCH_WDT_PREMEM_CONFIG *WatchDogPreMemConfig;
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PCH_DCI_PREMEM_CONFIG *DciPreMemConfig;
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PCH_PCIE_RP_PREMEM_CONFIG *PcieRpPreMemConfig;
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PCH_HDAUDIO_PREMEM_CONFIG *HdaPreMemConfig;
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PCH_ISH_PREMEM_CONFIG *IshPreMemConfig;
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gPchGeneralPreMemConfigGuid, (VOID *) &PchGeneralPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gPchTraceHubPreMemConfigGuid, (VOID *) &PchTraceHubPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gSmbusPreMemConfigGuid, (VOID *) &SmbusPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gLpcPreMemConfigGuid, (VOID *) &LpcPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gWatchDogPreMemConfigGuid, (VOID *) &WatchDogPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gDciPreMemConfigGuid, (VOID *) &DciPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gPcieRpPreMemConfigGuid, (VOID *) &PcieRpPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gHdAudioPreMemConfigGuid, (VOID *) &HdaPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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Status = GetConfigBlock ((VOID *) SiPreMemPolicy, &gIshPreMemConfigGuid, (VOID *) &IshPreMemConfig);
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ASSERT_EFI_ERROR (Status);
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DciPreMemConfig->DciUsb3TypecUfpDbg = 2;
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PchTraceHubPreMemConfig->MemReg0Size = 3;
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PchTraceHubPreMemConfig->MemReg1Size = 3;
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//
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// SMBUS
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//
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SmbusPreMemConfig->Enable = TRUE;
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SmbusPreMemConfig->SmbAlertEnable = PcdGetBool (PcdSmbusAlertEnable);
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//
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// SMBUS reserved addresses
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//
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SmBusReservedTable = NULL;
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SmBusReservedNum = 0;
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SmbusPreMemConfig->SmbusIoBase = PcdGet16 (PcdSmbusBaseAddress);
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SmBusReservedTable = mSmbusSTPRsvdAddresses;
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SmBusReservedNum = sizeof (mSmbusSTPRsvdAddresses);
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if (SmBusReservedTable != NULL) {
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SmbusPreMemConfig->NumRsvdSmbusAddresses = SmBusReservedNum;
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CopyMem (
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SmbusPreMemConfig->RsvdSmbusAddressTable,
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SmBusReservedTable,
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SmBusReservedNum
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);
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}
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return Status;
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}
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