| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * PCIe port initialization service procedure |
| * |
| * |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: GNB |
| * @e \$Revision: 49532 $ @e \$Date: 2011-03-25 02:54:43 +0800 (Fri, 25 Mar 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. |
| * *************************************************************************** |
| * |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * 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 "GnbSbLib.h" |
| #include "GnbCommonLib.h" |
| #include "GnbPcieConfig.h" |
| #include "GnbPcieInitLibV1.h" |
| #include "GnbRegistersLN.h" |
| #include "Filecode.h" |
| #define FILECODE PROC_GNB_MODULES_GNBPCIEINITLIBV1_PCIEPORTSERVICES_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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Set completion timeout |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| |
| VOID |
| PcieCompletionTimeout ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| GnbLibPciRMW ( |
| Engine->Type.Port.Address.AddressValue | DxF0x80_ADDRESS, |
| AccessWidth32, |
| 0xffffffff, |
| 0x6 << DxF0x80_CplTimeoutValue_OFFSET, |
| GnbLibGetHeader (Pcie) |
| ); |
| if (Engine->Type.Port.PortData.LinkHotplug != HotplugDisabled) { |
| PciePortRegisterWriteField ( |
| Engine, |
| DxF0xE4_x20_ADDRESS, |
| DxF0xE4_x20_TxFlushTlpDis_OFFSET, |
| DxF0xE4_x20_TxFlushTlpDis_WIDTH, |
| 0x0, |
| TRUE, |
| Pcie |
| ); |
| } |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Init hotplug port |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| |
| VOID |
| PcieLinkInitHotplug ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| DxF0xE4_xB5_STRUCT DxF0xE4_xB5; |
| if ((Engine->Type.Port.PortData.LinkHotplug == HotplugEnhanced) || (Engine->Type.Port.PortData.LinkHotplug == HotplugInboard)) { |
| DxF0xE4_xB5.Value = PciePortRegisterRead (Engine, DxF0xE4_xB5_ADDRESS, Pcie); |
| DxF0xE4_xB5.Field.LcEhpRxPhyCmd = 0x3; |
| DxF0xE4_xB5.Field.LcEhpTxPhyCmd = 0x3; |
| DxF0xE4_xB5.Field.LcEnhancedHotPlugEn = 0x1; |
| PciePortRegisterWrite ( |
| Engine, |
| DxF0xE4_xB5_ADDRESS, |
| DxF0xE4_xB5.Value, |
| TRUE, |
| Pcie |
| ); |
| PcieRegisterWriteField ( |
| PcieConfigGetParentWrapper (Engine), |
| CORE_SPACE (Engine->Type.Port.CoreId, 0x10), |
| 1, |
| 3, |
| 0x5, |
| TRUE, |
| Pcie |
| ); |
| PcieRegisterWriteField ( |
| PcieConfigGetParentWrapper (Engine), |
| WRAP_SPACE (PcieConfigGetParentWrapper (Engine)->WrapId, D0F0xE4_WRAP_8011_ADDRESS), |
| D0F0xE4_WRAP_8011_RcvrDetClkEnable_OFFSET, |
| D0F0xE4_WRAP_8011_RcvrDetClkEnable_WIDTH, |
| 0x1, |
| TRUE, |
| Pcie |
| ); |
| } |
| if (Engine->Type.Port.PortData.LinkHotplug != HotplugDisabled) { |
| GnbLibPciRMW ( |
| Engine->Type.Port.Address.AddressValue | DxF0x6C_ADDRESS, |
| AccessS3SaveWidth32, |
| 0xffffffff, |
| 1 << DxF0x6C_HotplugCapable_OFFSET, |
| GnbLibGetHeader (Pcie) |
| ); |
| PciePortRegisterWriteField ( |
| Engine, |
| DxF0xE4_x20_ADDRESS, |
| DxF0xE4_x20_TxFlushTlpDis_OFFSET, |
| DxF0xE4_x20_TxFlushTlpDis_WIDTH, |
| 0x0, |
| TRUE, |
| Pcie |
| ); |
| PciePortRegisterWriteField ( |
| Engine, |
| DxF0xE4_x70_ADDRESS, |
| DxF0xE4_x70_RxRcbCplTimeoutMode_OFFSET, |
| DxF0xE4_x70_RxRcbCplTimeoutMode_WIDTH, |
| 0x1, |
| FALSE, |
| Pcie |
| ); |
| } |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Set misc slot capability |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| |
| VOID |
| PcieLinkSetSlotCap ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| GnbLibPciRMW ( |
| Engine->Type.Port.Address.AddressValue | DxF0x58_ADDRESS, |
| AccessWidth32, |
| 0xffffffff, |
| 1 << DxF0x58_SlotImplemented_OFFSET, |
| GnbLibGetHeader (Pcie) |
| ); |
| GnbLibPciRMW ( |
| Engine->Type.Port.Address.AddressValue | DxF0x3C_ADDRESS, |
| AccessWidth32, |
| 0xffffffff, |
| 1 << DxF0x3C_IntPin_OFFSET, |
| GnbLibGetHeader (Pcie) |
| ); |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Safe mode to force link advertize Gen1 only capability in TS |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| |
| VOID |
| PcieLinkSafeMode ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| //Engine->Type.Port.PortData.LinkSpeedCapability = PcieGen1; |
| PcieSetLinkSpeedCap (PcieGen1, Engine, Pcie); |
| PciePortRegisterRMW ( |
| Engine, |
| DxF0xE4_xA2_ADDRESS, |
| DxF0xE4_xA2_LcUpconfigureDis_MASK, |
| (1 << DxF0xE4_xA2_LcUpconfigureDis_OFFSET), |
| FALSE, |
| Pcie |
| ); |
| } |
| |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Set current link speed |
| * |
| * |
| * @param[in] Engine Pointer to engine configuration descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| VOID |
| PcieSetLinkWidthCap ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| PciePortRegisterRMW ( |
| Engine, |
| DxF0xE4_xA2_ADDRESS, |
| DxF0xE4_xA2_LcUpconfigureDis_MASK, |
| 0, |
| FALSE, |
| Pcie |
| ); |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Set current link speed |
| * |
| * |
| * @param[in] LinkSpeedCapability Link Speed Capability |
| * @param[in] Engine Pointer to engine configuration descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| VOID |
| PcieSetLinkSpeedCap ( |
| IN PCIE_LINK_SPEED_CAP LinkSpeedCapability, |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| DxF0xE4_xA4_STRUCT DxF0xE4_xA4; |
| DxF0xE4_xC0_STRUCT DxF0xE4_xC0; |
| DxF0x88_STRUCT DxF0x88; |
| GnbLibPciRead ( |
| Engine->Type.Port.Address.AddressValue | DxF0x88_ADDRESS, |
| AccessWidth32, |
| &DxF0x88.Value, |
| GnbLibGetHeader (Pcie) |
| ); |
| DxF0xE4_xA4.Value = PciePortRegisterRead ( |
| Engine, |
| DxF0xE4_xA4_ADDRESS, |
| Pcie |
| ); |
| DxF0xE4_xC0.Value = PciePortRegisterRead ( |
| Engine, |
| DxF0xE4_xC0_ADDRESS, |
| Pcie |
| ); |
| |
| switch (LinkSpeedCapability) { |
| case PcieGen2: |
| DxF0xE4_xA4.Field.LcGen2EnStrap = 0x1; |
| DxF0xE4_xA4.Field.LcMultUpstreamAutoSpdChngEn = 0x1; |
| DxF0xE4_xC0.Field.StrapAutoRcSpeedNegotiationDis = 0x0; |
| DxF0x88.Field.TargetLinkSpeed = 0x2; |
| DxF0x88.Field.HwAutonomousSpeedDisable = 0x0; |
| break; |
| case PcieGen1: |
| DxF0xE4_xA4.Field.LcGen2EnStrap = 0x0; |
| DxF0xE4_xA4.Field.LcMultUpstreamAutoSpdChngEn = 0x0; |
| DxF0xE4_xC0.Field.StrapAutoRcSpeedNegotiationDis = 0x1; |
| DxF0x88.Field.TargetLinkSpeed = 0x1; |
| DxF0x88.Field.HwAutonomousSpeedDisable = 0x1; |
| PcieRegisterWriteField ( |
| PcieConfigGetParentWrapper (Engine), |
| WRAP_SPACE (PcieConfigGetParentWrapper (Engine)->WrapId, D0F0xE4_WRAP_0803_ADDRESS + 0x100 * Engine->Type.Port.PortId), |
| D0F0xE4_WRAP_0803_StrapBifDeemphasisSel_OFFSET, |
| D0F0xE4_WRAP_0803_StrapBifDeemphasisSel_WIDTH, |
| 0, |
| FALSE, |
| Pcie |
| ); |
| break; |
| default: |
| ASSERT (FALSE); |
| break; |
| } |
| PciePortRegisterWrite ( |
| Engine, |
| DxF0xE4_xA4_ADDRESS, |
| DxF0xE4_xA4.Value, |
| FALSE, |
| Pcie |
| ); |
| PciePortRegisterWrite ( |
| Engine, |
| DxF0xE4_xC0_ADDRESS, |
| DxF0xE4_xC0.Value, |
| FALSE, |
| Pcie |
| ); |
| GnbLibPciWrite ( |
| Engine->Type.Port.Address.AddressValue | DxF0x88_ADDRESS, |
| AccessWidth32, |
| &DxF0x88.Value, |
| GnbLibGetHeader (Pcie) |
| ); |
| } |
| |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Force compliance |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| |
| VOID |
| PcieForceCompliance ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| if (Engine->Type.Port.PortData.LinkSpeedCapability >= PcieGen2) { |
| GnbLibPciRMW ( |
| Engine->Type.Port.Address.AddressValue | DxF0x88_ADDRESS, |
| AccessWidth32, |
| 0xffffffff, |
| 0x1 << DxF0x88_EnterCompliance_OFFSET, |
| GnbLibGetHeader (Pcie) |
| ); |
| } else if (Engine->Type.Port.PortData.LinkSpeedCapability == PcieGen1) { |
| PciePortRegisterWriteField ( |
| Engine, |
| DxF0xE4_xC0_ADDRESS, |
| DxF0xE4_xC0_StrapForceCompliance_OFFSET, |
| DxF0xE4_xC0_StrapForceCompliance_WIDTH, |
| 0x1, |
| FALSE, |
| Pcie |
| ); |
| } |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Set slo power limit |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine configuration |
| * @param[in] Pcie Pointer to PCIe configuration |
| */ |
| |
| |
| VOID |
| PcieEnableSlotPowerLimit ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| ASSERT (Engine->EngineData.EngineType == PciePortEngine); |
| if (PcieLibIsEngineAllocated (Engine) && Engine->Type.Port.PortData.PortPresent != PortDisabled && !PcieConfigIsSbPcieEngine (Engine)) { |
| IDS_HDT_CONSOLE (PCIE_MISC, " Enable Slot Power Limit for Port % d\n", Engine->Type.Port.Address.Address.Device); |
| GnbLibPciIndirectRMW ( |
| MAKE_SBDFO (0, 0, 0, 0, D0F0x60_ADDRESS), |
| (D0F0x64_x51_ADDRESS + (Engine->Type.Port.Address.Address.Device - 2) * 2) | IOC_WRITE_ENABLE, |
| AccessS3SaveWidth32, |
| 0xffffffff, |
| 1 << D0F0x64_x51_SetPowEn_OFFSET, |
| GnbLibGetHeader (Pcie) |
| ); |
| } |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Enable ASPM |
| * |
| * |
| * |
| * @param[in] Engine Pointer to engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * |
| */ |
| |
| VOID |
| PcieEnableAspm ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| if (Engine->Type.Port.PortData.LinkAspm != AspmDisabled) { |
| if (PcieConfigIsSbPcieEngine (Engine)) { |
| SbPcieLinkAspmControl (Engine, Pcie); |
| } else { |
| PcieLinkAspmEnable ( |
| Engine->Type.Port.Address, |
| Engine->Type.Port.PortData.LinkAspm, |
| GnbLibGetHeader (Pcie) |
| ); |
| } |
| } |
| } |
| |
| |
| UINT8 L1State = 0x1b; |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Poll for link to get into L1 |
| * |
| * |
| * |
| * @param[in] Engine Pointer to Engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| */ |
| VOID |
| PciePollLinkForL1Entry ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| UINT8 LinkHwStateHistory[8]; |
| do { |
| PcieUtilGetLinkHwStateHistory (Engine, &LinkHwStateHistory[0], sizeof (LinkHwStateHistory), Pcie); |
| } while (!PcieUtilSearchArray (LinkHwStateHistory, sizeof (LinkHwStateHistory), &L1State, sizeof (L1State))); |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Poll for link to get into L1 |
| * |
| * |
| * |
| * @param[in] Engine Pointer to Engine config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| */ |
| VOID |
| PciePollLinkForL0Exit ( |
| IN PCIe_ENGINE_CONFIG *Engine, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| UINT8 LinkHwStateHistory[4]; |
| do { |
| PcieUtilGetLinkHwStateHistory (Engine, &LinkHwStateHistory[0], sizeof (LinkHwStateHistory), Pcie); |
| } while (LinkHwStateHistory[0] != 0x10); |
| } |
