diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2GppResetService.c')
-rwxr-xr-x | src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2GppResetService.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2GppResetService.c b/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2GppResetService.c new file mode 100755 index 0000000000..a86b6cbe55 --- /dev/null +++ b/src/vendorcode/amd/agesa/f12/Proc/Fch/Pcie/Family/Hudson2/Hudson2GppResetService.c @@ -0,0 +1,123 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * Config Hudson2 Pcie controller + * + * Init GPP (pcie Controller) features. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: FCH + * @e \$Revision: 44855 $ @e \$Date: 2011-01-07 16:51:55 +0800 (Fri, 07 Jan 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_HUDSON2GPPRESETSERVICE_FILECODE + + +/** + * ProgramFchGppInitReset - Config Gpp at PowerOnReset + * + * @param[in] FchDataPtr Fch configuration structure pointer. + * + */ +VOID +ProgramFchGppInitReset ( + IN VOID *FchDataPtr + ) +{ + FCH_RESET_DATA_BLOCK *LocalCfgPtr; + LocalCfgPtr = (FCH_RESET_DATA_BLOCK *) FchDataPtr; + + // + // Toggle GEVENT4 to reset all GPP devices + // + ProgramGppTogglePcieReset (LocalCfgPtr->GppToggleReset, LocalCfgPtr->StdHeader); + if (LocalCfgPtr->SerialDebugBusEnable) { + RwAlink (FCH_ABCFG_REGC0, (UINT32) (ABCFG << 29), ~BIT12, 0x00); + } +} + +/** + * FchResetPcie - Toggle GEVENT4 to assert/deassert GPP device + * reset + * + * + * @param[in] ResetBlock - PCIE reset for FCH GPP or NB PCIE + * @param[in] ResetOp - Assert or deassert PCIE reset + * @param[in] StdHeader + * + */ +VOID +FchResetPcie ( + IN RESET_BLOCK ResetBlock, + IN RESET_OP ResetOp, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT8 Or8; + UINT8 Mask8; + + if (ResetBlock == NbBlock) { + if (ResetOp == AssertReset) { + Or8 = BIT4; + Mask8 = 0; + LibAmdMemRMW (AccessWidth8, (UINT64) (ACPI_MMIO_BASE + PMIO_BASE + FCH_PMIOA_REGC4), &Or8, &Mask8, StdHeader); + } else if (ResetOp == DeassertReset) { + Or8 = 0; + Mask8 = BIT4; + LibAmdMemRMW (AccessWidth8, (UINT64) (ACPI_MMIO_BASE + PMIO_BASE + FCH_PMIOA_REGC4), &Or8, &Mask8, StdHeader); + } + } else if (ResetBlock == FchBlock) { + Or8 = BIT1; + Mask8 = BIT1 + BIT0; + LibAmdMemRMW (AccessWidth8, (UINT64) (ACPI_MMIO_BASE + IOMUX_BASE + FCH_GEVENT_REG04), &Or8, &Mask8, StdHeader); + if (ResetOp == AssertReset) { + Or8 = 0; + Mask8 = BIT5; + LibAmdMemRMW (AccessWidth8, (UINT64) (ACPI_MMIO_BASE + GPIO_BASE + FCH_GEVENT_REG04), &Or8, &Mask8, StdHeader); + Or8 = BIT4; + Mask8 = 0; + LibAmdMemRMW (AccessWidth8, (UINT64) (ACPI_MMIO_BASE + PMIO_BASE + FCH_PMIOA_REGBF), &Or8, &Mask8, StdHeader); + } else if (ResetOp == DeassertReset) { + Or8 = 0; + Mask8 = BIT4; + LibAmdMemRMW (AccessWidth8, (UINT64) (ACPI_MMIO_BASE + PMIO_BASE + FCH_PMIOA_REGBF), &Or8, &Mask8, StdHeader); + Or8 = BIT5; + Mask8 = 0; + LibAmdMemRMW (AccessWidth8, (UINT64) (ACPI_MMIO_BASE + GPIO_BASE + FCH_GEVENT_REG04), &Or8, &Mask8, StdHeader); + } + } +} + |