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Diffstat (limited to 'src/vendorcode/amd/pi/00660F01/Proc/Fch/Common/MemLib.c')
-rw-r--r-- | src/vendorcode/amd/pi/00660F01/Proc/Fch/Common/MemLib.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/vendorcode/amd/pi/00660F01/Proc/Fch/Common/MemLib.c b/src/vendorcode/amd/pi/00660F01/Proc/Fch/Common/MemLib.c new file mode 100644 index 0000000000..656f7689bb --- /dev/null +++ b/src/vendorcode/amd/pi/00660F01/Proc/Fch/Common/MemLib.c @@ -0,0 +1,144 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * FCH memory access lib + * + * + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: FCH + * @e \$Revision: 309090 $ @e \$Date: 2014-12-09 12:28:05 -0600 (Tue, 09 Dec 2014) $ + * + */ + /***************************************************************************** + * + * Copyright (c) 2008 - 2015, 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 "Ids.h" +#define FILECODE PROC_FCH_COMMON_MEMLIB_FILECODE + + +/** + * ReadMem - Read FCH BAR Memory + * + * @param[in] Address - Memory BAR address + * @param[in] OpFlag - Access width + * @param[in] *ValuePtr - In/Out value pointer + * + */ +VOID +ReadMem ( + IN UINT32 Address, + IN UINT8 OpFlag, + IN VOID *ValuePtr + ) +{ + OpFlag = OpFlag & 0x7f; + + switch ( OpFlag ) { + case AccessWidth8: + *((UINT8*)ValuePtr) = *((volatile UINT8*) ((UINTN)Address)); + break; + + case AccessWidth16: + *((UINT16*)ValuePtr) = *((volatile UINT16*) ((UINTN)Address)); + break; + + case AccessWidth32: + *((UINT32*)ValuePtr) = *((volatile UINT32*) ((UINTN)Address)); + break; + + default: + ASSERT (FALSE); + break; + } +} + +/** + * WriteMem - Write FCH BAR Memory + * + * @param[in] Address - Memory BAR address + * @param[in] OpFlag - Access width + * @param[in] *ValuePtr - In/Out Value pointer + * + */ +VOID +WriteMem ( + IN UINT32 Address, + IN UINT8 OpFlag, + IN VOID *ValuePtr + ) +{ + OpFlag = OpFlag & 0x7f; + + switch ( OpFlag ) { + case AccessWidth8 : + *((volatile UINT8*) ((UINTN)Address)) = *((UINT8*)ValuePtr); + break; + + case AccessWidth16: + *((volatile UINT16*) ((UINTN)Address)) = *((UINT16*)ValuePtr); + break; + + case AccessWidth32: + *((volatile UINT32*) ((UINTN)Address)) = *((UINT32*)ValuePtr); + break; + + default: + ASSERT (FALSE); + break; + } +} + +/** + * RwMem - Read & Write FCH BAR Memory + * + * @param[in] Address - Memory BAR address + * @param[in] OpFlag - Access width + * @param[in] Mask - Mask Value of data + * @param[in] Data - Write data + * + */ +VOID +RwMem ( + IN UINT32 Address, + IN UINT8 OpFlag, + IN UINT32 Mask, + IN UINT32 Data + ) +{ + UINT32 Result; + + ReadMem (Address, OpFlag, &Result); + Result = (Result & Mask) | Data; + WriteMem (Address, OpFlag, &Result); + ReadMem (Address, OpFlag, &Result); +} + |