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/**
* @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
)
{
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++;
}
}
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