| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * Pre-training PCIe subsystem initialization routines. |
| * |
| * |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: GNB |
| * @e \$Revision: 39275 $ @e \$Date: 2010-10-09 08:22:05 +0800 (Sat, 09 Oct 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 "Gnb.h" |
| #include "GnbPcie.h" |
| #include "PcieLateInit.h" |
| #include "PcieFamilyServices.h" |
| #include GNB_MODULE_DEFINITIONS (GnbCommonLib) |
| #include GNB_MODULE_DEFINITIONS (GnbPcieInitLibV1) |
| #include GNB_MODULE_DEFINITIONS (GnbPcieConfig) |
| #include "GnbRegistersON.h" |
| #include "Filecode.h" |
| #define FILECODE PROC_GNB_PCIE_PCIELATEINIT_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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| VOID |
| PciePwrPowerDownPllInL1 ( |
| IN PCIe_WRAPPER_CONFIG *Wrapper, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ); |
| |
| AGESA_STATUS |
| PcieLateInitCallback ( |
| IN PCIe_WRAPPER_CONFIG *Wrapper, |
| IN OUT VOID *Buffer, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ); |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Power down inactive lanes |
| * |
| * |
| * @param[in] Wrapper Pointer to wrapper config descriptor |
| * @param[in] Pcie Pointer to global PCIe configuration |
| */ |
| |
| VOID |
| PciePwrPowerDownPllInL1 ( |
| IN PCIe_WRAPPER_CONFIG *Wrapper, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| |
| UINT32 LaneBitmapForPllOffInL1; |
| UINT8 PllPowerUpLatency; |
| IDS_HDT_CONSOLE (GNB_TRACE, "PciePwrPowerDownPllInL1 Enter\n"); |
| PllPowerUpLatency = PcieFmPifGetPllPowerUpLatency (Wrapper, Pcie); |
| LaneBitmapForPllOffInL1 = PcieLanesToPowerDownPllInL1 (PllPowerUpLatency, Wrapper, Pcie); |
| if (LaneBitmapForPllOffInL1 != 0) { |
| PcieFmPifSetPllModeForL1 (LaneBitmapForPllOffInL1, Wrapper, Pcie); |
| } |
| IDS_HDT_CONSOLE (GNB_TRACE, "PciePwrPowerDownPllInL1 Exir\n"); |
| } |
| |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Per wrapper Pcie Late Init. |
| * |
| * |
| * @param[in] Wrapper Pointer to wrapper configuration descriptor |
| * @param[in] Buffer Pointer buffer |
| * @param[in] Pcie Pointer to global PCIe configuration |
| */ |
| AGESA_STATUS |
| PcieLateInitCallback ( |
| IN PCIe_WRAPPER_CONFIG *Wrapper, |
| IN OUT VOID *Buffer, |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| PciePwrPowerDownUnusedLanes (Wrapper, Pcie); |
| PciePwrPowerDownPllInL1 (Wrapper, Pcie); |
| PciePwrClockGating (Wrapper, Pcie); |
| PcieLockRegisters (Wrapper, Pcie); |
| return AGESA_SUCCESS; |
| } |
| |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * Pcie Late Init |
| * |
| * Late PCIe initialization |
| * |
| * @param[in] Pcie Pointer to global PCIe configuration |
| * @retval AGESA_SUCCESS Topology successfully mapped |
| * @retval AGESA_ERROR Topology can not be mapped |
| */ |
| |
| AGESA_STATUS |
| PcieLateInit ( |
| IN PCIe_PLATFORM_CONFIG *Pcie |
| ) |
| { |
| AGESA_STATUS Status; |
| IDS_HDT_CONSOLE (GNB_TRACE, "PcieLateInit Enter\n"); |
| Status = PcieConfigRunProcForAllWrappers (DESCRIPTOR_ALL_WRAPPERS, PcieLateInitCallback, NULL, Pcie); |
| IDS_HDT_CONSOLE (GNB_TRACE, "PcieLateInit Exit [0x%x]\n", Status); |
| return Status; |
| } |