diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2AbResetService.c')
-rwxr-xr-x | src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2AbResetService.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2AbResetService.c b/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2AbResetService.c new file mode 100755 index 0000000000..05b35a1c88 --- /dev/null +++ b/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2AbResetService.c @@ -0,0 +1,126 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * Config Hudson2 AB + * + * Init AB bridge. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: FCH + * @e \$Revision: 47163 $ @e \$Date: 2011-02-16 07:23:13 +0800 (Wed, 16 Feb 2011) $ + * + */ +/* +***************************************************************************** +* +* 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_PCIE_FAMILY_HUDSON2_HUDSON2ABRESETSERVICE_FILECODE + + +/** + * FchProgramAbPowerOnReset - Config Ab Bridge during Power-On + * + * + * + * @param[in] FchDataPtr Fch configuration structure pointer. + * + */ +VOID +FchProgramAbPowerOnReset ( + IN VOID *FchDataPtr + ) +{ + UINT32 AbValue; + FCH_RESET_DATA_BLOCK *LocalCfgPtr; + AMD_CONFIG_PARAMS *StdHeader; + UINT8 EfuseValue; + + LocalCfgPtr = (FCH_RESET_DATA_BLOCK *) FchDataPtr; + StdHeader = LocalCfgPtr->StdHeader; + + // + // Set A-Link bridge access address. + // This is an I/O address. The I/O address must be on 16-byte boundary. + // + RwMem (ACPI_MMIO_BASE + PMIO_BASE + FCH_PMIOA_REGE0, AccessWidth32, 00, ALINK_ACCESS_INDEX); + + // + // Enable Hudson-2 to issue memory read/write requests in the upstream direction + // + WriteAlink (0x80000004, 0x04, StdHeader); + + // + // Disable the credit variable in the downstream arbitration equation + // + AbValue = ReadAlink (FCH_ABCFG_REG9C | (UINT32) (ABCFG << 29), StdHeader); + AbValue = AbValue | BIT0; + WriteAlink (FCH_ABCFG_REG9C | (UINT32) (ABCFG << 29), AbValue, StdHeader); + + // + // AXINDC 0x10[9]=1, Enabling Non-Posted memory write for K8 platform. + // + WriteAlink (0x30, 0x10, StdHeader); + WriteAlink (0x34, ReadAlink (0x34, StdHeader) | BIT9, StdHeader); + + RwAlink (FCH_ABCFG_REG10050 | (UINT32) (ABCFG << 29), ~BIT2, 0x00, StdHeader); + + // + // Configure UMI target link speed + // + EfuseValue = PCIE_FORCE_GEN1_EFUSE_LOCATION; + GetEfuseStatus (&EfuseValue, StdHeader); + if ( EfuseValue & BIT0 ) { + LocalCfgPtr->NbSbGen2 = 0; + } + + EfuseValue = FCH_Variant_EFUSE_LOCATION; + GetEfuseStatus (&EfuseValue, StdHeader); + if ((EfuseValue == 0x07) || (EfuseValue == 0x08)) { + LocalCfgPtr->NbSbGen2 = 0; + } + + if (LocalCfgPtr->NbSbGen2) { + AbValue = 2; + } else { + AbValue = 1; + } + RwAlink ((UINT32)FCH_AX_CFG_REG88, 0xFFFFFFF0, AbValue, StdHeader); + + if (LocalCfgPtr->NbSbGen2) { + AbValue = BIT0; + } else { + AbValue = 0; + } + RwAlink (FCH_AX_INDXP_REGA4, 0xFFFFFFFE, AbValue, StdHeader); + +} + |