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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <device/pci_def.h>
#include <device/device.h>
#include <stdlib.h>
#include "OEM.h" /* SMBUS0_BASE_ADDRESS */
/* warning: Porting.h includes an open #pragma pack(1) */
#include "Porting.h"
#include "AGESA.h"
#include "chip.h"
#include <northbridge/amd/agesa/dimmSpd.h>
/**
* Gets the SMBus address for an SPD from the array in devicetree.cb
* then read the SPD into the supplied buffer.
*/
AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINTN unused2, AGESA_READ_SPD_PARAMS *info)
{
UINT8 spdAddress;
DEVTREE_CONST struct device *dev = dev_find_slot(0, PCI_DEVFN(0x18, 2));
if (dev == NULL)
return AGESA_ERROR;
DEVTREE_CONST struct northbridge_amd_agesa_family14_config *config = dev->chip_info;
if (config == NULL)
return AGESA_ERROR;
if (info->SocketId >= ARRAY_SIZE(config->spdAddrLookup))
return AGESA_ERROR;
if (info->MemChannelId >= ARRAY_SIZE(config->spdAddrLookup[0]))
return AGESA_ERROR;
if (info->DimmId >= ARRAY_SIZE(config->spdAddrLookup[0][0]))
return AGESA_ERROR;
spdAddress = config->spdAddrLookup
[info->SocketId][info->MemChannelId][info->DimmId];
if (spdAddress == 0)
return AGESA_ERROR;
int err = smbus_readSpd(spdAddress, (void *) info->Buffer, 128);
if (err)
return AGESA_ERROR;
return AGESA_SUCCESS;
}
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