diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f12/Proc/Fch/Imc/FchEcEnv.c')
| -rwxr-xr-x | src/vendorcode/amd/agesa/f12/Proc/Fch/Imc/FchEcEnv.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f12/Proc/Fch/Imc/FchEcEnv.c b/src/vendorcode/amd/agesa/f12/Proc/Fch/Imc/FchEcEnv.c new file mode 100755 index 0000000000..e3a6ed629a --- /dev/null +++ b/src/vendorcode/amd/agesa/f12/Proc/Fch/Imc/FchEcEnv.c @@ -0,0 +1,185 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * FCH Embedded Controller + * + * Init Ec Controller features. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: FCH + * @e \$Revision: 44324 $ @e \$Date: 2010-12-22 17:16:51 +0800 (Wed, 22 Dec 2010) $ + * + */ +/* +***************************************************************************** +* +* 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 "FchPlatform.h" +#include "Filecode.h" +#define FILECODE PROC_FCH_IMC_FCHECENV_FILECODE + + +/** + * FchInitEnvEc - Config Ec controller before PCI emulation + * + * + * + * @param[in] FchDataPtr Fch configuration structure pointer. + * + */ +VOID +FchInitEnvEc ( + IN VOID *FchDataPtr + ) +{ +} + +/*----------------------------------------------------------------------------------------*/ +/** + * EnterEcConfig - Force EC into Config mode + * + * + * + * + */ +VOID +EnterEcConfig ( + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT16 EcIndexPortDword; + UINT8 FchEcData8; + + ReadPci ((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REGA4, AccessWidth16, &EcIndexPortDword, StdHeader); + EcIndexPortDword &= ~(BIT0); + FchEcData8 = 0x5A; + LibAmdIoWrite (AccessWidth8, EcIndexPortDword, &FchEcData8, StdHeader); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * ExitEcConfig - Force EC exit Config mode + * + * + * + * + */ +VOID +ExitEcConfig ( + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT16 EcIndexPortDword; + UINT8 FchEcData8; + + ReadPci ((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REGA4, AccessWidth16, &EcIndexPortDword, StdHeader); + EcIndexPortDword &= ~(BIT0); + FchEcData8 = 0xA5; + LibAmdIoWrite (AccessWidth8, EcIndexPortDword, &FchEcData8, StdHeader); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * ReadEc8 - Read EC register data + * + * + * + * @param[in] Address - EC Register Offset Value + * @param[in] Value - Read Data Buffer + * @param[in] StdHeader + * + */ +VOID +ReadEc8 ( + IN UINT8 Address, + IN UINT8 *Value, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT16 EcIndexPortDword; + + ReadPci ((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REGA4, AccessWidth16, &EcIndexPortDword, StdHeader); + EcIndexPortDword &= ~(BIT0); + LibAmdIoWrite (AccessWidth8, EcIndexPortDword, &Address, StdHeader); + LibAmdIoRead (AccessWidth8, EcIndexPortDword + 1, Value, StdHeader); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * 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 + * @param[in] StdHeader + * + */ +VOID +RwEc8 ( + IN UINT8 Address, + IN UINT8 AndMask, + IN UINT8 OrMask, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT8 Result; + + ReadEc8 (Address, &Result, StdHeader); + Result = (Result & AndMask) | OrMask; + WriteEc8 (Address, &Result, StdHeader); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * WriteEc8 - Write date into EC register + * + * + * + * @param[in] Address - EC Register Offset Value + * @param[in] Value - Write Data Buffer + * @param[in] StdHeader + * + */ +VOID +WriteEc8 ( + IN UINT8 Address, + IN UINT8 *Value, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT16 EcIndexPortDword; + + ReadPci ((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REGA4, AccessWidth16, &EcIndexPortDword, StdHeader); + EcIndexPortDword &= ~(BIT0); + LibAmdIoWrite (AccessWidth8, EcIndexPortDword, &Address, StdHeader); + LibAmdIoWrite (AccessWidth8, EcIndexPortDword + 1, Value, StdHeader); +} |