diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f12/Proc/Fch/Pcib/PcibLate.c')
-rwxr-xr-x | src/vendorcode/amd/agesa/f12/Proc/Fch/Pcib/PcibLate.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcib/PcibLate.c b/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcib/PcibLate.c new file mode 100755 index 0000000000..964e6043be --- /dev/null +++ b/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcib/PcibLate.c @@ -0,0 +1,94 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * Config Fch Pcib controller + * + * Init Pcib 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" +#define FILECODE PROC_FCH_PCIB_PCIBLATE_FILECODE + +/** + * FchInitLatePcib - Prepare Pcib controller to boot to OS. + * + * @param[in] FchDataPtr Fch configuration structure pointer. + * + */ +VOID +FchInitLatePcib ( + IN VOID *FchDataPtr + ) +{ + UINT8 Value; + UINT8 NStBit; + UINT8 NSBit; + UINT32 VarDd; + FCH_DATA_BLOCK *LocalCfgPtr; + AMD_CONFIG_PARAMS *StdHeader; + + LocalCfgPtr = (FCH_DATA_BLOCK *) FchDataPtr; + StdHeader = LocalCfgPtr->StdHeader; + + // + // We need to do the following setting in late post also because some bios core pci enumeration changes these values + // programmed during early post. + // Master Latency Timer + // + Value = 0x40; + WritePci ((PCIB_BUS_DEV_FUN << 16) + FCH_PCIB_REG0D, AccessWidth8, &Value, StdHeader); + WritePci ((PCIB_BUS_DEV_FUN << 16) + FCH_PCIB_REG1B, AccessWidth8, &Value, StdHeader); + + // + // CLKRUN# + // FCH P2P AutoClock control settings. + // VarDd = (FchDataPtr->PcibAutoClkCtrlLow) | (FchDataPtr->PcibAutoClkCtrlLow); + // + if ( LocalCfgPtr->Pcib.PcibClockRun ) { + ReadMem (ACPI_MMIO_BASE + PMIO_BASE + FCH_PMIOA_REG54, AccessWidth8, &Value); + NStBit = Value & 0x03; + NSBit = (Value & 0x3F ) >> 2; + VarDd = (4 + (NStBit * 2) + (( 17 + NSBit) * 3) + 4) | 0x01; + + VarDd = 9; // for A12 + WritePci ((PCIB_BUS_DEV_FUN << 16) + FCH_PCIB_REG4C, AccessWidth32, &VarDd, StdHeader); + } + + VarDd = (LocalCfgPtr->Pcib.PcibClkStopOverride); + RwPci ((PCIB_BUS_DEV_FUN << 16) + FCH_PCIB_REG50, AccessWidth16, 0x3F, (UINT16) (VarDd << 6), StdHeader); +} |