init

hc

2024-03-22 a0752693d998599af469473b8dc239ef973a012f

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/** @file 
 
  Copyright (c) 2004  - 2014, Intel Corporation. All rights reserved.<BR> 
                                                                                     
  SPDX-License-Identifier: BSD-2-Clause-Patent 
 
                                                                                     
 
Module Name: 
 
 
  PlatformSsaInitPeim.c 
 
Abstract: 
 
 
--*/ 
 
#include "PlatformEarlyInit.h" 
 
/** 
  Perform SSA related platform initialization. 
 
**/ 
VOID 
PlatformSsaInit ( 
  IN SYSTEM_CONFIGURATION        *SystemConfiguration, 
  IN CONST EFI_PEI_SERVICES          **PeiServices 
  ) 
{ 
 
  DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - Start\n")); 
  DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - SystemConfiguration->ISPDevSel 0x%x\n",SystemConfiguration->ISPDevSel)); 
  if(SystemConfiguration->ISPDevSel == 0x02) 
  { 
    // 
    // Device 3 Interrupt Route 
    // 
    MmioWrite16 ( 
      (ILB_BASE_ADDRESS + R_PCH_ILB_D3IR), 
      V_PCH_ILB_DXXIR_IAR_PIRQH   // For IUNIT 
    ); 
    MmioRead16(ILB_BASE_ADDRESS + R_PCH_ILB_D3IR); // Read Posted Writes Register 
    DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - Device 3 Interrupt Route Done\n")); 
  } 
 
  // 
  // Device 2 Interrupt Route 
  // 
  MmioWrite16 ( 
    (ILB_BASE_ADDRESS + R_PCH_ILB_D2IR), 
    V_PCH_ILB_DXXIR_IAR_PIRQA   // For IGD 
  ); 
  MmioRead16(ILB_BASE_ADDRESS + R_PCH_ILB_D2IR); // Read Posted Writes Register 
  DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - Device 2 Interrupt Route Done\n")); 
 
  return; 
}