diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbSbLib/GnbSbPcie.c')
-rwxr-xr-x | src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbSbLib/GnbSbPcie.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbSbLib/GnbSbPcie.c b/src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbSbLib/GnbSbPcie.c new file mode 100755 index 0000000000..a2ef67515b --- /dev/null +++ b/src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbSbLib/GnbSbPcie.c @@ -0,0 +1,142 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * GNB-SB link procedure + * + * + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: GNB + * @e \$Revision: 44324 $ @e \$Date: 2010-12-22 01:16:51 -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. +* *************************************************************************** +* +*/ + +/*---------------------------------------------------------------------------------------- + * M O D U L E S U S E D + *---------------------------------------------------------------------------------------- + */ +#include "AGESA.h" +#include "Ids.h" +#include "amdlib.h" +#include "Gnb.h" +#include "GnbPcie.h" +#include "GnbCommonLib.h" +#include "GnbPcieInitLibV1.h" +#include "GnbSbLib.h" +#include "Filecode.h" +#define FILECODE PROC_GNB_MODULES_GNBSBLIB_GNBSBPCIE_FILECODE +/*---------------------------------------------------------------------------------------- + * D E F I N I T I O N S A N D M A C R O S + *---------------------------------------------------------------------------------------- + */ + + +/*---------------------------------------------------------------------------------------- + * T Y P E D E F S A N D S T R U C T U R E S + *---------------------------------------------------------------------------------------- + */ + + +/*---------------------------------------------------------------------------------------- + * P R O T O T Y P E S O F L O C A L F U N C T I O N S + *---------------------------------------------------------------------------------------- + */ + + +/*----------------------------------------------------------------------------------------*/ +/** + * Enable/Disable ASPM on GNB-SB link + * + * + * + * @param[in] Engine Pointer to engine config descriptor + * @param[in] Pcie Pointer to global PCIe configuration + * + */ + +AGESA_STATUS +SbPcieLinkAspmControl ( + IN PCIe_ENGINE_CONFIG *Engine, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + AGESA_STATUS Status; + PCIE_ASPM_TYPE Aspm; + + Aspm = Engine->Type.Port.PortData.LinkAspm; + + Status = SbPcieInitAspm (Aspm, GnbLibGetHeader (Pcie)); + if (Status != AGESA_SUCCESS) { + return AGESA_UNSUPPORTED; + } + + PcieAspmEnableOnFunction (Engine->Type.Port.Address, Aspm, GnbLibGetHeader (Pcie)); + return AGESA_SUCCESS; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Init SB ASPM. + * Enable ASPM states on SB + * + * + * @param[in] Aspm ASPM bitmap. + * @param[in] StdHeader Standard configuration header + */ +/*----------------------------------------------------------------------------------------*/ + +AGESA_STATUS +SbPcieInitAspm ( + IN PCIE_ASPM_TYPE Aspm, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT16 AlinkPort; + + AlinkPort = SbGetAlinkIoAddress (StdHeader); + ASSERT (AlinkPort != 0); + if (AlinkPort == 0) { + return AGESA_UNSUPPORTED; + } + GnbLibIoRMW (AlinkPort, AccessS3SaveWidth32, 0x0, 0x40000038, StdHeader); + GnbLibIoRMW (AlinkPort + 4, AccessS3SaveWidth32, 0x0, 0xA0, StdHeader); + GnbLibIoRMW (AlinkPort, AccessS3SaveWidth32, 0x0, 0x4000003c, StdHeader); + GnbLibIoRMW (AlinkPort + 4, AccessS3SaveWidth32, 0xffff00ff, 0x6900, StdHeader); + GnbLibIoRMW (AlinkPort, AccessS3SaveWidth32, 0x0, 0x80000068, StdHeader); + GnbLibIoRMW (AlinkPort + 4, AccessS3SaveWidth32, 0xfffffffc, Aspm, StdHeader); + return AGESA_SUCCESS; +} + + |