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

/**
 * @file
 *
 * Southbridge PMIO access common routine
 *
 */
/*
 *****************************************************************************
 *
 * 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 PMIO
 *
 *
 *
 * @param[in] Address  - PMIO Offset value
 * @param[in] OpFlag   - Access sizes
 * @param[in] Value    - Read Data Buffer
 *
 */
VOID
ReadPMIO (
  IN       UINT8 Address,
  IN       UINT8 OpFlag,
  IN       VOID* Value
  )
{
  UINT8 i;
  OpFlag = OpFlag & 0x7f;

  if ( OpFlag == 0x02 ) {
    OpFlag = 0x03;
  }
  for ( i = 0; i <= OpFlag; i++ ) {
    WriteIO (0xCD6, AccWidthUint8, &Address);                   // SB_IOMAP_REGCD6
    Address++;
    ReadIO (0xCD7, AccWidthUint8, (UINT8 *)Value + i);          // SB_IOMAP_REGCD7
  }
}

/*----------------------------------------------------------------------------------------*/
/**
 * Write PMIO
 *
 *
 *
 * @param[in] Address  - PMIO Offset value
 * @param[in] OpFlag   - Access sizes
 * @param[in] Value    - Write Data Buffer
 *
 */
VOID
WritePMIO (
  IN       UINT8 Address,
  IN       UINT8 OpFlag,
  IN       VOID* Value
  )
{
  UINT8 i;
  OpFlag = OpFlag & 0x7f;

  if ( OpFlag == 0x02 ) {
    OpFlag = 0x03;
  }
  for ( i = 0; i <= OpFlag; i++ ) {
    WriteIO (0xCD6, AccWidthUint8, &Address);                   // SB_IOMAP_REGCD6
    Address++;
    WriteIO (0xCD7, AccWidthUint8, (UINT8 *)Value + i);         // SB_IOMAP_REGCD7
  }
}

/*----------------------------------------------------------------------------------------*/
/**
 * RWPMIO - Read/Write PMIO
 *
 *
 *
 * @param[in] Address    - PMIO Offset value
 * @param[in] OpFlag     - Access sizes
 * @param[in] AndMask    - Data And Mask 32 bits
 * @param[in] OrMask     - Data OR Mask 32 bits
 *
 */
VOID
RWPMIO (
  IN       UINT8 Address,
  IN       UINT8   OpFlag,
  IN       UINT32 AndMask,
  IN       UINT32 OrMask
  )
{
  UINT32 Result;
  OpFlag = OpFlag & 0x7f;
  ReadPMIO (Address, OpFlag, &Result);
  Result = (Result & AndMask) | OrMask;
  WritePMIO (Address, OpFlag, &Result);
}