| /***************************************************************************** |
| * |
| * Copyright (C) 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 "Platform.h" |
| |
| UINT8 isEcPresent(){ |
| UINT8 dbFlag; |
| UINT16 dwVar0; |
| |
| //Read the EC configuration register base address from LPCCfg_A4[15:1] |
| //Write 0x5A to the EC config index register to unlock the access |
| //Write 0x20 to the EC config index register to select the device ID register |
| //Read the value of device ID register from the EC config data register |
| //If the value read is 0xB7, then EC is enabled. |
| //Write 0xA5 to re-lock the EC config index register if EC is enabled. |
| |
| ReadPCI((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwVar0); |
| dwVar0 &= 0xFFFE; |
| RWIO(dwVar0, AccWidthUint8, 0, 0x5A); |
| RWIO(dwVar0, AccWidthUint8, 0, 0x20); |
| ReadIO(dwVar0+1, AccWidthUint8, &dbFlag); |
| RWIO(dwVar0, AccWidthUint8, 0, 0xA5); |
| |
| return ( dbFlag == 0xB7); |
| } |
| |
| void |
| getSbInformation ( |
| SB_INFORMATION *sbInfo){ |
| UINT16 dwDevId; |
| UINT8 dbRev; |
| |
| ReadPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG02, AccWidthUint16 | S3_SAVE, &dwDevId); |
| ReadPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG08, AccWidthUint8 | S3_SAVE, &dbRev); |
| sbInfo->sbModelMask = SB_MODEL_UNKNOWN; |
| if ( (dwDevId == SB7XX_DEVICE_ID) && (dbRev <= SB_Rev_Sb7xx_A14) ){ |
| sbInfo->sbModelMask |= SB_MODEL_SB700; |
| sbInfo->sbModelMask |= SB_MODEL_SR5690; |
| sbInfo->sbRev = dbRev; |
| ReadPCI((LPC_BUS_DEV_FUN << 16) + SB_LPC_REG9C, AccWidthUint8 | S3_SAVE, &dbRev); |
| if (dbRev & 01) |
| sbInfo->sbModelMask |= SB_MODEL_SB750; |
| if (isEcPresent()) |
| sbInfo->sbModelMask |= SB_MODEL_SB710; |
| return; |
| } |
| } |
| |
| |
| SB_CAPABILITY_SETTING |
| getSbCapability ( |
| SB_CAPABILITY_ITEM sbCapabilityItem |
| ) |
| { |
| SB_CAPABILITY_SETTING sbCapSetting=SB_UNKNOWN; |
| UINT32 ddTemp0; |
| RWPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG43, AccWidthUint8 | S3_SAVE, ~(UINT32)BIT3, 00); |
| ReadPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG10, AccWidthUint32, &ddTemp0); |
| |
| if (sbCapabilityItem < Sb_Unknown_Capability) |
| sbCapSetting = ((ddTemp0 >> (sbCapabilityItem << 1) ) & 0x03); |
| |
| RWPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG43, AccWidthUint8 | S3_SAVE, 0xFF, BIT3); |
| return sbCapSetting; |
| } |
| |
| |
| void |
| setSbCapability ( |
| SB_CAPABILITY_ITEM sbCapabilityItem, SB_CAPABILITY_SETTING sbCapSetting |
| ) |
| { |
| UINT32 ddTemp0; |
| RWPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG43, AccWidthUint8 | S3_SAVE, ~(UINT32)BIT3, 00); |
| ReadPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG10, AccWidthUint32, &ddTemp0); |
| if ( (sbCapabilityItem < Sb_Unknown_Capability) & (sbCapSetting < Sb_Cap_Setting_Unknown) ) |
| ddTemp0 = (ddTemp0 & ~(0x03 << (sbCapabilityItem << 1))) | ( (sbCapSetting & 0x03) << (sbCapabilityItem << 1)); |
| WritePCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG10, AccWidthUint32, &ddTemp0); |
| RWPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REG43, AccWidthUint8 | S3_SAVE, 0xFF, BIT3); |
| } |