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) $
 *
 */
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#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]), sizeof (FchInitHudson2EnvLpcPciTable) / sizeof (REG8_MASK), StdHeader);

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