diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/Proc/GNB/Modules/GnbPcieInitLibV1/PciePortRegAcc.c')
-rw-r--r-- | src/vendorcode/amd/agesa/Proc/GNB/Modules/GnbPcieInitLibV1/PciePortRegAcc.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/Proc/GNB/Modules/GnbPcieInitLibV1/PciePortRegAcc.c b/src/vendorcode/amd/agesa/Proc/GNB/Modules/GnbPcieInitLibV1/PciePortRegAcc.c new file mode 100644 index 0000000000..491e148d15 --- /dev/null +++ b/src/vendorcode/amd/agesa/Proc/GNB/Modules/GnbPcieInitLibV1/PciePortRegAcc.c @@ -0,0 +1,230 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * Supporting services to access PCIe port indirect register + * space. + * + * + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: GNB + * @e \$Revision: 34897 $ @e \$Date: 2010-07-13 19:07:10 -0700 (Tue, 13 Jul 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 "GnbPcieFamServices.h" +#include GNB_MODULE_DEFINITIONS (GnbCommonLib) +#include "Filecode.h" +#define FILECODE PROC_GNB_MODULES_GNBPCIEINITLIBV1_PCIEPORTREGACC_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 + *---------------------------------------------------------------------------------------- + */ + + +/*----------------------------------------------------------------------------------------*/ +/** + * Read PCIe port indirect register. + * + * Support for unify register access through index/data pair on PCIe port + * + * @param[in] Engine Pointer to Engine descriptor for this port + * @param[in] Address Register address + * @param[in] Pcie Pointer to internal configuration data area + * @retval Register Value + */ + +UINT32 +PciePortRegisterRead ( + IN PCIe_ENGINE_CONFIG *Engine, + IN UINT16 Address, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT32 Value; + GnbLibPciWrite (Engine->Type.Port.Address.AddressValue | 0xE0, AccessWidth32, &Address, GnbLibGetHeader (Pcie)); + GnbLibPciRead (Engine->Type.Port.Address.AddressValue | 0xE4, AccessWidth32, &Value, GnbLibGetHeader (Pcie)); + return Value; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Write PCIe Port Indirect register. + * + * Support for unify register access through index/data pair on GNB + * + * @param[in] Engine Pointer to Engine descriptor for this port + * @param[in] Address Register address + * @param[in] Value New register value + * @param[in] S3Save Save for S3 flag + * @param[in] Pcie Pointer to internal configuration data area + */ +VOID +PciePortRegisterWrite ( + IN PCIe_ENGINE_CONFIG *Engine, + IN UINT16 Address, + IN UINT32 Value, + IN BOOLEAN S3Save, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + ASSERT (S3Save == TRUE || S3Save == FALSE); + + IDS_HDT_CONSOLE (PCIE_PORTREG_TRACE, " *WR PCIEIND_P (%d:%d:%d):0x%04x = 0x%08x\n", + Engine->Type.Port.Address.Address.Bus, + Engine->Type.Port.Address.Address.Device, + Engine->Type.Port.Address.Address.Function, + Address, + Value + ); + GnbLibPciWrite (Engine->Type.Port.Address.AddressValue | 0xE0, S3Save ? AccessS3SaveWidth32 : AccessWidth32, &Address, GnbLibGetHeader (Pcie)); + GnbLibPciWrite (Engine->Type.Port.Address.AddressValue | 0xE4, S3Save ? AccessS3SaveWidth32 : AccessWidth32, &Value, GnbLibGetHeader (Pcie)); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Write PCIe Port Indirect register field. + * + * Support for unify register access through index/data pair on GNB + * + * @param[in] Engine Pointer to Engine descriptor for this port + * @param[in] Address Register address + * @param[in] FieldOffset Field offset + * @param[in] FieldWidth Field width + * @param[in] S3Save Save for S3 flag + * @param[in] Value New register value + * @param[in] Pcie Pointer to internal configuration data area + */ + +VOID +PciePortRegisterWriteField ( + IN PCIe_ENGINE_CONFIG *Engine, + IN UINT16 Address, + IN UINT8 FieldOffset, + IN UINT8 FieldWidth, + IN UINT32 Value, + IN BOOLEAN S3Save, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT32 Data; + UINT32 Mask; + Data = PciePortRegisterRead (Engine, Address, Pcie); + Mask = (1 << FieldWidth) - 1; + Value &= Mask; + Data &= (~(Mask << FieldOffset)); + PciePortRegisterWrite (Engine, Address, Data | (Value << FieldOffset), S3Save, Pcie); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Write PCIe Port Indirect register field. + * + * Support for unify register access through index/data pair on GNB + * + * @param[in] Engine Pointer to Engine descriptor for this port + * @param[in] Address Register address + * @param[in] FieldOffset Field offset + * @param[in] FieldWidth Field width + * @param[in] Pcie Pointer to internal configuration data area + * @retval Register Field Value. + */ + +UINT32 +PciePortRegisterReadField ( + IN PCIe_ENGINE_CONFIG *Engine, + IN UINT16 Address, + IN UINT8 FieldOffset, + IN UINT8 FieldWidth, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT32 Value; + Value = PciePortRegisterRead (Engine, Address, Pcie); + Value = (Value >> FieldOffset) & ((1 << FieldWidth) - 1); + return Value; +} + +/*----------------------------------------------------------------------------------------*/ +/** + * Read/Modify/Write PCIe port register. + * + * Support for unify register access through index/data pair on GNB + * + * @param[in] Engine Pointer to Engine descriptor for this port + * @param[in] Address Register address + * @param[in] AndMask Value & (~AndMask) + * @param[in] OrMask Value | OrMask + * @param[in] S3Save Save register for S3 (True/False) + * @param[in] Pcie Pointer to global PCIe configuration + */ + +VOID +PciePortRegisterRMW ( + IN PCIe_ENGINE_CONFIG *Engine, + IN UINT16 Address, + IN UINT32 AndMask, + IN UINT32 OrMask, + IN BOOLEAN S3Save, + IN PCIe_PLATFORM_CONFIG *Pcie + ) +{ + UINT32 Value; + Value = PciePortRegisterRead (Engine, Address, Pcie); + Value = (Value & (~AndMask)) | OrMask; + PciePortRegisterWrite (Engine, Address, Value, S3Save, Pcie); +} + |