src/vendorcode/amd/cimx/sb800/SBPELIB.c

/**
 * @file
 *
 * Southbridge IO access common routine
 *
 *
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project:      CIMx-SB
 * @e sub-project:
 * @e \$Revision:$   @e \$Date:$
 *
 */
/*
 *****************************************************************************
 *
 * Copyright (c) 2011, 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 "SBPLATFORM.h"
#include "cbtypes.h"

/**
 * Read Southbridge Revision ID cie Base
 *
 *
 * @retval  0xXXXXXXXX   Revision ID
 *
 */
UINT8
getRevisionID (
  OUT VOID
  )
{
  UINT8  dbVar0;
  ReadPCI (((SMBUS_BUS_DEV_FUN << 16) + SB_CFG_REG08), AccWidthUint8, &dbVar0);
  return dbVar0;
}

/*----------------------------------------------------------------------------------------*/
/**
 * programPciByteTable - Program PCI register by table (8 bits data)
 *
 *
 *
 * @param[in] pPciByteTable    - Table data pointer
 * @param[in] dwTableSize      - Table length
 *
 */
VOID
programPciByteTable (
  IN       REG8MASK* pPciByteTable,
  IN       UINT16 dwTableSize
  )
{
  UINT8  i;
  UINT8  dbBusNo;
  UINT8  dbDevFnNo;
  UINT32  ddBDFR;

  dbBusNo = pPciByteTable->bRegIndex;
  dbDevFnNo = pPciByteTable->bANDMask;
  pPciByteTable++;

  for ( i = 1; i < dwTableSize; i++ ) {
    if ( (pPciByteTable->bRegIndex == 0xFF) && (pPciByteTable->bANDMask == 0xFF) && (pPciByteTable->bORMask == 0xFF) ) {
      pPciByteTable++;
      dbBusNo = pPciByteTable->bRegIndex;
      dbDevFnNo = pPciByteTable->bANDMask;
      pPciByteTable++;
      i++;
    } else {
      ddBDFR = (dbBusNo << 24) + (dbDevFnNo << 16) + (pPciByteTable->bRegIndex) ;
      RWPCI (ddBDFR, AccWidthUint8 | S3_SAVE, pPciByteTable->bANDMask, pPciByteTable->bORMask);
      pPciByteTable++;
    }
  }
}

/*----------------------------------------------------------------------------------------*/
/**
 * programSbAcpiMmioTbl - Program SB ACPI MMIO register by table (8 bits data)
 *
 *
 *
 * @param[in] pAcpiTbl   - Table data pointer
 *
 */
VOID
programSbAcpiMmioTbl (
  IN       AcpiRegWrite *pAcpiTbl
  )
{
  UINT8 i;
  UINT32 ddtempVar;
  if (pAcpiTbl != NULL) {
    for ( i = 1; pAcpiTbl->MmioBase < 0xf0; i++ ) {
      ddtempVar = 0xFED80000 | (pAcpiTbl->MmioBase) << 8 | pAcpiTbl->MmioReg;
      RWMEM (ddtempVar, AccWidthUint8, ((pAcpiTbl->DataANDMask) | 0xFFFFFF00), pAcpiTbl->DataOrMask);
      pAcpiTbl++;
    }
  }
}

/**
 * getChipSysMode - Get Chip status
 *
 *
 * @param[in] Value - Return Chip strap status
 *   StrapStatus [15.0] - SB800 chip Strap Status
 *    @li <b>0001</b> - Not USED FWH
 *    @li <b>0002</b> - Not USED LPC ROM
 *    @li <b>0004</b> - EC enabled
 *    @li <b>0008</b> - Reserved
 *    @li <b>0010</b> - Internal Clock mode
 *
 */
VOID
getChipSysMode (
  IN       VOID* Value
  )
{
  ReadMEM (ACPI_MMIO_BASE + MISC_BASE + SB_MISC_REG80, AccWidthUint8, Value);
}

/*----------------------------------------------------------------------------------------*/
/**
 * Read Southbridge CIMx configuration structure pointer
 *
 *
 *
 * @retval  0xXXXXXXXX   CIMx configuration structure pointer.
 *
 */
AMDSBCFG*
getConfigPointer (
  OUT VOID
  )
{
  UINT8  dbReg;
  UINT8  dbValue;
  UINT8  i;
  UINT32  ddValue;
  ddValue = 0;
  dbReg = SB_ECMOS_REG08;

  for ( i = 0; i <= 3; i++ ) {
    WriteIO (SB_IOMAP_REG72, AccWidthUint8, &dbReg);
    ReadIO (SB_IOMAP_REG73, AccWidthUint8, &dbValue);
    ddValue |= (dbValue << (i * 8));
    dbReg++;
  }
  return ( (AMDSBCFG*) (UINTN)ddValue);
}

/**
 * getEfuseStatue - Get Efuse status
 *
 *
 * @param[in] Value - Return Chip strap status
 *
 */
VOID
getEfuseStatus (
  IN       VOID* Value
  )
{
  RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGC8, AccWidthUint8, ~BIT5, BIT5);
  WriteMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGD8, AccWidthUint8, Value);
  ReadMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGD8 + 1, AccWidthUint8, Value);
  RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGC8, AccWidthUint8, ~BIT5, 0);
}