diff options
Diffstat (limited to 'src/vendorcode/amd/cimx/sb800/AMDSBLIB.c')
-rw-r--r-- | src/vendorcode/amd/cimx/sb800/AMDSBLIB.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/vendorcode/amd/cimx/sb800/AMDSBLIB.c b/src/vendorcode/amd/cimx/sb800/AMDSBLIB.c new file mode 100644 index 0000000000..166666ec3f --- /dev/null +++ b/src/vendorcode/amd/cimx/sb800/AMDSBLIB.c @@ -0,0 +1,152 @@ +/** + * @file + * + * Southbridge IO access common routine + * + * + * + * @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" + +/*----------------------------------------------------------------------------------------*/ +/** + * SbStall - Delay routine + * + * + * + * @param[in] uSec + * + */ +VOID +SbStall ( + IN UINT32 uSec + ) +{ + UINT16 timerAddr; + UINT32 startTime; + UINT32 elapsedTime; + + ReadMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG64, AccWidthUint16, &timerAddr); + if ( timerAddr == 0 ) { + uSec = uSec / 2; + while ( uSec != 0 ) { + ReadIO (0x80, AccWidthUint8, (UINT8 *) (&startTime)); + uSec--; + } + } else { + ReadIO (timerAddr, AccWidthUint32, &startTime); + for ( ;; ) { + ReadIO (timerAddr, AccWidthUint32, &elapsedTime); + if ( elapsedTime < startTime ) { + elapsedTime = elapsedTime + 0xFFFFFFFF - startTime; + } else { + elapsedTime = elapsedTime - startTime; + } + if ( (elapsedTime * 28 / 100) > uSec ) { + break; + } + } + } +} + +/*----------------------------------------------------------------------------------------*/ +/** + * SbReset - Generate a reset command + * + * + * + * @param[in] OpFlag - Dummy + * + */ +VOID +SbReset ( + IN UINT8 OpFlag + ) +{ + UINT8 Temp; + Temp = OpFlag; + RWIO (0xcf9, AccWidthUint8, 0x0, 0x06); +} + +/*----------------------------------------------------------------------------------------*/ +/** + * outPort80 - Send data to PORT 80 (debug port) + * + * + * + * @param[in] pcode - debug code (32 bits) + * + */ +VOID +outPort80 ( + IN UINT32 pcode + ) +{ + WriteIO (0x80, AccWidthUint8, &pcode); + return; +} + +/** + * AmdSbCopyMem - Memory copy + * + * @param[in] pDest - Destance address point + * @param[in] pSource - Source Address point + * @param[in] Length - Data length + * + */ +VOID +AmdSbCopyMem ( + IN VOID* pDest, + IN VOID* pSource, + IN UINTN Length + ) +{ + UINTN i; + UINT8 *Ptr; + UINT8 *Source; + Ptr = (UINT8*)pDest; + Source = (UINT8*)pSource; + for (i = 0; i < Length; i++) { + *Ptr = *Source; + Source++; + Ptr++; + } +} |