diff options
Diffstat (limited to 'src/vendorcode/amd/cimx/sb800/GEC.c')
-rw-r--r-- | src/vendorcode/amd/cimx/sb800/GEC.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/vendorcode/amd/cimx/sb800/GEC.c b/src/vendorcode/amd/cimx/sb800/GEC.c new file mode 100644 index 0000000000..6ee142f795 --- /dev/null +++ b/src/vendorcode/amd/cimx/sb800/GEC.c @@ -0,0 +1,145 @@ +/** + * @file + * + * Config Southbridge GEC controller + * + * Init GEC features. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: CIMx-SB + * @e sub-project: + * @e \$Revision:$ @e \$Date:$ + * + */ +/* + ***************************************************************************** + * + * 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 "SBPLATFORM.h" +#include "cbtypes.h" + +/** + * gecInitBeforePciEnum - Config GEC controller before PCI emulation + * + * + * + * @param[in] pConfig Southbridge configuration structure pointer. + * + */ +VOID +gecInitBeforePciEnum ( + IN AMDSBCFG* pConfig + ) +{ + UINT8 cimSBGecDebugBus; + UINT8 cimSBGecPwr; + + cimSBGecDebugBus = (UINT8) pConfig->SBGecDebugBus; + cimSBGecPwr = (UINT8) pConfig->SBGecPwr; +#if SB_CIMx_PARAMETER == 0 + cimSBGecDebugBus = cimSBGecDebugBusDefault; + cimSBGecPwr = cimSBGecPwrDefault; +#endif + if ( pConfig->GecConfig == 0) { + // GEC Enabled + RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGF6, AccWidthUint8, ~BIT0, 0x00); + RWMEM (ACPI_MMIO_BASE + IOMUX_BASE + SB_GEVENT_REG11, AccWidthUint8, 0, 0x00); + RWMEM (ACPI_MMIO_BASE + IOMUX_BASE + SB_GEVENT_REG21, AccWidthUint8, 0, 0x01); + RWMEM (ACPI_MMIO_BASE + IOMUX_BASE + SB_GPIO_REG166, AccWidthUint8, 0, 0x01); + //RWMEM (ACPI_MMIO_BASE + IOMUX_BASE + SB_GPIO_REG181, AccWidthUint8, 0, 0x01); + RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGF8, AccWidthUint8, ~(BIT5 + BIT6), (UINT8) ((cimSBGecPwr) << 5)); + } else { + // GEC Disabled + RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGF6, AccWidthUint8, ~BIT0, BIT0); + return; //return if GEC controller is disabled. + } + if ( cimSBGecDebugBus == 1) { + // GEC Debug Bus Enabled + RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGF6, AccWidthUint8, ~BIT3, BIT3); + } else { + // GEC Debug Bus Disabled + RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGF6, AccWidthUint8, ~BIT3, 0x00); + } +} + +/** + * gecInitAfterPciEnum - Config GEC controller after PCI emulation + * + * + * + * @param[in] pConfig Southbridge configuration structure pointer. + * + */ +VOID +gecInitAfterPciEnum ( + IN AMDSBCFG* pConfig + ) +{ + VOID* GecRomAddress; + VOID* GecShadowRomAddress; + UINT32 ddTemp; + UINT8 dbVar; + UINT8 dbTemp; + if ( pConfig->GecConfig == 0) { + dbVar = 0; + ReadPCI ((GEC_BUS_DEV_FUN << 16) + SB_GEC_REG04, AccWidthUint8, &dbVar); + dbTemp = 0x07; + WritePCI ((GEC_BUS_DEV_FUN << 16) + SB_GEC_REG04, AccWidthUint8, &dbTemp); + if ( !pConfig->DYNAMICGECROM.DynamicGecRomAddress_Ptr == NULL ) { + GecRomAddress = pConfig->DYNAMICGECROM.DynamicGecRomAddress_Ptr; + GecShadowRomAddress = (VOID*) (UINTN) pConfig->BuildParameters.GecShadowRomBase; + AmdSbCopyMem (GecShadowRomAddress, GecRomAddress, 0x100); + ReadPCI ((GEC_BUS_DEV_FUN << 16) + SB_GEC_REG10, AccWidthUint32, &ddTemp); + ddTemp = ddTemp & 0xFFFFFFF0; + RWMEM (ddTemp + 0x6804, AccWidthUint32, 0, BIT0 + BIT29); + } + WritePCI ((GEC_BUS_DEV_FUN << 16) + SB_GEC_REG04, AccWidthUint8, &dbVar); + } +} + +/** + * gecInitLatePost - Prepare GEC controller to boot to OS. + * + * + * @param[in] pConfig Southbridge configuration structure pointer. + * + */ +VOID +gecInitLatePost ( + IN AMDSBCFG* pConfig + ) +{ + if ( !pConfig->GecConfig == 0) { + return; //return if GEC controller is disabled. + } +} + + |