audk/Vlv2TbltDevicePkg/Library/MultiPlatformLib/MultiPlatformLib.c

/** @file
  Multiplatform initialization.

  Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
                                                                                   
  This program and the accompanying materials are licensed and made available under
  the terms and conditions of the BSD License that accompanies this distribution.  
  The full text of the license may be found at                                     
  http://opensource.org/licenses/bsd-license.php.                                  
                                                                                   
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,            
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.    
                                                                                   

**/

#include <MultiPlatformLib.h>

/**
  Platform Type detection. Because the PEI globle variable
  is in the flash, it could not change directly.So use
  2 PPIs to distinguish the platform type.

  @param FfsHeader       Pointer to Firmware File System file header.
  @param PeiServices     General purpose services available to every PEIM.

  @retval EFI_SUCCESS    Memory initialization completed successfully.
  @retval Others         All other error conditions encountered result in an ASSERT.

**/
EFI_STATUS
MultiPlatformInfoInit (
  IN CONST EFI_PEI_SERVICES             **PeiServices,
  IN OUT EFI_PLATFORM_INFO_HOB          *PlatformInfoHob
  )
{
  UINT32 PcieLength;


  PlatformInfoHob->IohSku = MmPci16(0, MC_BUS, MC_DEV, MC_FUN, PCI_DEVICE_ID_OFFSET);

  PlatformInfoHob->IohRevision = MmPci8(0, MC_BUS, MC_DEV, MC_FUN, PCI_REVISION_ID_OFFSET);

  //
  // Update ICH Type
  //
  //
  // Device ID
  //
  PlatformInfoHob->IchSku = PchLpcPciCfg16(PCI_DEVICE_ID_OFFSET);

  PlatformInfoHob->IchRevision = PchLpcPciCfg8(PCI_REVISION_ID_OFFSET);

  //
  //64MB
  //
  PcieLength = 0x04000000;

  //
  // Don't support BASE above 4GB currently.
  //
  PlatformInfoHob->PciData.PciExpressSize     = PcieLength;
  PlatformInfoHob->PciData.PciExpressBase     = PcdGet64 (PcdPciExpressBaseAddress);

  PlatformInfoHob->PciData.PciResourceMem32Base  = (UINT32) (PlatformInfoHob->PciData.PciExpressBase - RES_MEM32_MIN_LEN);
  PlatformInfoHob->PciData.PciResourceMem32Limit = (UINT32) (PlatformInfoHob->PciData.PciExpressBase -1);

  PlatformInfoHob->PciData.PciResourceMem64Base   = RES_MEM64_36_BASE;
  PlatformInfoHob->PciData.PciResourceMem64Limit  = RES_MEM64_36_LIMIT;
  PlatformInfoHob->CpuData.CpuAddressWidth        = 36;

  PlatformInfoHob->MemData.MemMir0 = PlatformInfoHob->PciData.PciResourceMem64Base;
  PlatformInfoHob->MemData.MemMir1 = PlatformInfoHob->PciData.PciResourceMem64Limit + 1;

  PlatformInfoHob->PciData.PciResourceMinSecBus  = 1;  //can be changed by SystemConfiguration->PciMinSecondaryBus;

  //
  // Set MemMaxTolm to the lowest address between PCIe Base and PCI32 Base.
  //
  if (PlatformInfoHob->PciData.PciExpressBase > PlatformInfoHob->PciData.PciResourceMem32Base ) {
    PlatformInfoHob->MemData.MemMaxTolm = (UINT32) PlatformInfoHob->PciData.PciResourceMem32Base;
  } else {
    PlatformInfoHob->MemData.MemMaxTolm = (UINT32) PlatformInfoHob->PciData.PciExpressBase;
  }
  PlatformInfoHob->MemData.MemTolm = PlatformInfoHob->MemData.MemMaxTolm;

  //
  // Platform PCI MMIO Size in unit of 1MB.
  //
  PlatformInfoHob->MemData.MmioSize = 0x1000 - (UINT16)(PlatformInfoHob->MemData.MemMaxTolm >> 20);

  //
  // Enable ICH IOAPIC
  //
  PlatformInfoHob->SysData.SysIoApicEnable  = ICH_IOAPIC;

  DEBUG ((EFI_D_ERROR, "PlatformFlavor is %x (%x=tablet,%x=mobile,%x=desktop)\n",
    PlatformInfoHob->PlatformFlavor,
    FlavorTablet,
    FlavorMobile,
    FlavorDesktop));

  //
  // Get Platform Info and fill the Hob.
  //
  PlatformInfoHob->RevisonId = PLATFORM_INFO_HOB_REVISION;

  //
  // Get GPIO table
  //
  MultiPlatformGpioTableInit (PeiServices, PlatformInfoHob);

  //
  // Program GPIO
  //
  MultiPlatformGpioProgram (PeiServices, PlatformInfoHob);

  //
  // Update OemId
  //
  InitializeBoardOemId (PeiServices, PlatformInfoHob);
  InitializeBoardSsidSvid (PeiServices, PlatformInfoHob);

  return EFI_SUCCESS;
}