| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * Config Fch Imc controller |
| * |
| * Init Imc Controller features. |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: FCH |
| * @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $ |
| * |
| */ |
| /* |
| ***************************************************************************** |
| * |
| * Copyright (c) 2008 - 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 "FchPlatform.h" |
| #include "Filecode.h" |
| #define FILECODE PROC_FCH_IMC_FAMILY_HUDSON2_HUDSON2IMCSERVICE_FILECODE |
| |
| // |
| // Declaration of local functions |
| // |
| |
| |
| /** |
| * SoftwareToggleImcStrapping - Software Toggle IMC Firmware Strapping. |
| * |
| * |
| * @param[in] FchDataPtr Fch configuration structure pointer. |
| * |
| */ |
| VOID |
| SoftwareToggleImcStrapping ( |
| IN VOID *FchDataPtr |
| ) |
| { |
| UINT8 ValueByte; |
| UINT8 PortStatusByte; |
| UINT32 AbValue; |
| UINT32 ABStrapOverrideReg; |
| AMD_CONFIG_PARAMS *StdHeader; |
| |
| StdHeader = ((FCH_DATA_BLOCK *) FchDataPtr)->StdHeader; |
| GetChipSysMode (&PortStatusByte, StdHeader); |
| |
| ReadPmio (FCH_PMIOA_REGBF, AccessWidth8, &ValueByte, StdHeader); |
| |
| // |
| //if ( (ValueByte & (BIT6 + BIT7)) != 0xC0 ) { // PwrGoodOut =1, PwrGoodEnB=1 |
| //The strapStatus register is not mapped into StrapOveride not in the same bit position. The following is difference. |
| // |
| //StrapStatus StrapOverride |
| // bit4 bit17 |
| // bit6 bit12 |
| // bit12 bit15 |
| // bit15 bit16 |
| // bit16 bit18 |
| // |
| ReadMem ((ACPI_MMIO_BASE + MISC_BASE + 0x80 ), AccessWidth32, &AbValue); |
| ABStrapOverrideReg = AbValue; |
| |
| if (AbValue & BIT4) { |
| ABStrapOverrideReg = (ABStrapOverrideReg & ~BIT4) | BIT17; |
| } |
| |
| if (AbValue & BIT6) { |
| ABStrapOverrideReg = (ABStrapOverrideReg & ~BIT6) | BIT12; |
| } |
| |
| if (AbValue & BIT12) { |
| ABStrapOverrideReg = (ABStrapOverrideReg & ~BIT12) | BIT15; |
| } |
| |
| if (AbValue & BIT15) { |
| ABStrapOverrideReg = (ABStrapOverrideReg & ~BIT15) | BIT16; |
| } |
| |
| if (AbValue & BIT16) { |
| ABStrapOverrideReg = (ABStrapOverrideReg & ~BIT16) | BIT18; |
| } |
| |
| ABStrapOverrideReg |= BIT31; /// Overwrite enable |
| |
| if ((PortStatusByte & ChipSysEcEnable) == 0) { |
| ABStrapOverrideReg |= BIT2; /// bit2- EcEnableStrap |
| } else { |
| ABStrapOverrideReg &= ~BIT2; /// bit2=0 EcEnableStrap |
| } |
| |
| WriteMem ((ACPI_MMIO_BASE + MISC_BASE + 0x84 ), AccessWidth32, &ABStrapOverrideReg); |
| ValueByte |= (BIT6 + BIT7); /// PwrGoodOut =1, PwrGoodEnB=1 |
| WritePmio (FCH_PMIOA_REGBF, AccessWidth8, &ValueByte, StdHeader); |
| |
| ValueByte = 06; |
| LibAmdIoWrite (AccessWidth8, 0xcf9, &ValueByte, StdHeader); |
| FchStall (0xffffffff, StdHeader); |
| } |
| |