src/vendorcode/amd/agesa/f15tn/Proc/Fch/Spi/Family/Hudson2/Hudson2LpcEnvService.c

/* $NoKeywords:$ */
/**
 * @file
 *
 * Config Fch LPC controller
 *
 * Init LPC 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) $
 *
 */
/*
*****************************************************************************
*
 * Copyright (c) 2008 - 2012, Advanced Micro Devices, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Advanced Micro Devices, Inc. nor the names of
 *       its contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
****************************************************************************
*/
#include "FchPlatform.h"
#include "Filecode.h"
#define FILECODE PROC_FCH_SPI_FAMILY_HUDSON2_HUDSON2LPCENVSERVICE_FILECODE

/**
 * FchInitHudson2EnvLpcPciTable - PCI device registers initial
 * during early POST.
 *
 */
REG8_MASK FchInitHudson2EnvLpcPciTable[] =
{
  //
  // LPC Device (Bus 0, Dev 20, Func 3)
  //
  {0x00, LPC_BUS_DEV_FUN, 0},
  {FCH_LPC_REG40, (UINT8)~BIT2, BIT2},                             /// Enabling LPC DMA Function  0x40[2]=1b 0x78[0]=0b
  {FCH_LPC_REG48, 0x00, BIT0 + BIT1 + BIT2},
  {0x78 , 0xFC, 00},                                /// Enabling LPC DMA Function  0x40[2]=1b 0x78[0]=0b / Disables MSI capability
  {FCH_LPC_REGBB, (UINT8)~BIT0, (BIT0 + BIT3 + BIT4 + BIT5)},        /// Enabled SPI Prefetch from HOST.
  {0xFF, 0xFF, 0xFF},
};

/**
 * FchInitEnvLpcProgram - Config LPC controller before PCI
 * emulation
 *
 *
 *
 * @param[in] FchDataPtr Fch configuration structure pointer.
 *
 */
VOID
FchInitEnvLpcProgram (
  IN  VOID     *FchDataPtr
  )
{
  FCH_DATA_BLOCK         *LocalCfgPtr;
  AMD_CONFIG_PARAMS      *StdHeader;
  LocalCfgPtr = (FCH_DATA_BLOCK *) FchDataPtr;
  StdHeader = LocalCfgPtr->StdHeader;

  ProgramPciByteTable ((REG8_MASK*) (&FchInitHudson2EnvLpcPciTable[0]),
                       ARRAY_SIZE(FchInitHudson2EnvLpcPciTable), StdHeader);

  //
  // Disable LPC A-Link Cycle Bypass
  //
  RwMem (ACPI_MMIO_BASE + MISC_BASE + FCH_MISC_REG50 + 2, AccessWidth8, 0xF7, BIT3);
}