| /** |
| * @file |
| * |
| * Southbridge EC IO 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" |
| |
| // #ifndef NO_EC_SUPPORT |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * EnterEcConfig - Force EC into Config mode |
| * |
| * |
| * |
| * |
| */ |
| VOID |
| EnterEcConfig ( |
| ) |
| { |
| UINT16 dwEcIndexPort; |
| |
| ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort); |
| dwEcIndexPort &= ~(BIT0); |
| RWIO (dwEcIndexPort, AccWidthUint8, 0x00, 0x5A); |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * ExitEcConfig - Force EC exit Config mode |
| * |
| * |
| * |
| * |
| */ |
| VOID |
| ExitEcConfig ( |
| ) |
| { |
| UINT16 dwEcIndexPort; |
| |
| ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort); |
| dwEcIndexPort &= ~(BIT0); |
| RWIO (dwEcIndexPort, AccWidthUint8, 0x00, 0xA5); |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * ReadEC8 - Read EC register data |
| * |
| * |
| * |
| * @param[in] Address - EC Register Offset Value |
| * @param[in] Value - Read Data Buffer |
| * |
| */ |
| VOID |
| ReadEC8 ( |
| IN UINT8 Address, |
| IN UINT8* Value |
| ) |
| { |
| UINT16 dwEcIndexPort; |
| |
| ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort); |
| dwEcIndexPort &= ~(BIT0); |
| WriteIO (dwEcIndexPort, AccWidthUint8, &Address); |
| ReadIO (dwEcIndexPort + 1, AccWidthUint8, Value); |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * WriteEC8 - Write date into EC register |
| * |
| * |
| * |
| * @param[in] Address - EC Register Offset Value |
| * @param[in] Value - Write Data Buffer |
| * |
| */ |
| VOID |
| WriteEC8 ( |
| IN UINT8 Address, |
| IN UINT8* Value |
| ) |
| { |
| UINT16 dwEcIndexPort; |
| |
| ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort); |
| dwEcIndexPort &= ~(BIT0); |
| |
| WriteIO (dwEcIndexPort, AccWidthUint8, &Address); |
| WriteIO (dwEcIndexPort + 1, AccWidthUint8, Value); |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * RWEC8 - Read/Write EC register |
| * |
| * |
| * |
| * @param[in] Address - EC Register Offset Value |
| * @param[in] AndMask - Data And Mask 8 bits |
| * @param[in] OrMask - Data OR Mask 8 bits |
| * |
| */ |
| VOID |
| RWEC8 ( |
| IN UINT8 Address, |
| IN UINT8 AndMask, |
| IN UINT8 OrMask |
| ) |
| { |
| UINT8 Result; |
| ReadEC8 (Address, &Result); |
| Result = (Result & AndMask) | OrMask; |
| WriteEC8 (Address, &Result); |
| } |
| |
| // #endif |
| |