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/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/pci_def.h>
#include <device/device.h>
#include <OEM.h>
/* 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 = pcidev_on_root(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, DDR3_SPD_SIZE);
if (err)
return AGESA_ERROR;
return AGESA_SUCCESS;
}
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