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/*
*
* 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 <stdlib.h>
#include "Porting.h"
#include "AGESA.h"
#include "amdlib.h"
#include <northbridge/amd/agesa/dimmSpd.h>
typedef struct _DIMM_INFO_SMBUS {
UINT8 SocketId;
UINT8 MemChannelId;
UINT8 DimmId;
UINT8 SmbusAddress;
} DIMM_INFO_SMBUS;
/*
* SPD address table - porting required
*/
STATIC CONST DIMM_INFO_SMBUS SpdAddrLookup [] =
{
/* Socket, Channel, Dimm, Smbus */
{0, 0, 0, 0xA0},
{0, 1, 0, 0xA2}
};
AGESA_STATUS
AmdMemoryReadSPD (
IN UINT32 Func,
IN UINTN Data,
IN OUT AGESA_READ_SPD_PARAMS *SpdData
)
{
UINT8 SmBusAddress = 0;
UINTN Index;
UINTN MaxSocket = ARRAY_SIZE(SpdAddrLookup);
for (Index = 0; Index < MaxSocket; Index ++) {
if ((SpdData->SocketId == SpdAddrLookup[Index].SocketId) &&
(SpdData->MemChannelId == SpdAddrLookup[Index].MemChannelId) &&
(SpdData->DimmId == SpdAddrLookup[Index].DimmId)) {
SmBusAddress = SpdAddrLookup[Index].SmbusAddress;
break;
}
}
if (SmBusAddress == 0)
return AGESA_ERROR;
int err = smbus_readSpd(SmBusAddress, (char *) SpdData->Buffer, 128);
if (err)
return AGESA_ERROR;
return AGESA_SUCCESS;
}
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