/** @file
|
SA Platform Lib implementation.
|
|
Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
#include "SaPlatformLibrary.h"
|
#include <Library/MmPciLib.h>
|
#include <SaRegs.h>
|
|
/**
|
Determine if PCH Link is DMI/OPI
|
|
@param[in] CpuModel CPU model
|
|
@retval TRUE DMI
|
@retval FALSE OPI
|
**/
|
BOOLEAN
|
IsPchLinkDmi (
|
IN CPU_FAMILY CpuModel
|
)
|
{
|
if (((CpuModel == EnumCpuSklDtHalo) || (CpuModel == EnumCpuKblDtHalo)) && ((MmioRead8 (MmPciBase (0, 0, 0) + R_SA_MC_DEVICE_ID) & (BIT2 | BIT1)) != BIT2)) {
|
return TRUE; // DMI
|
}
|
return FALSE; // OPI
|
}
|
