| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2012 Advanced Micro Devices, Inc. |
| * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com> |
| * |
| * 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> |
| |
| /* warning: Porting.h includes an open #pragma pack(1) */ |
| #include "Porting.h" |
| #include "AGESA.h" |
| #include "amdlib.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, UINT32 unused2, AGESA_READ_SPD_PARAMS *info) |
| { |
| UINT8 spdAddress; |
| |
| ROMSTAGE_CONST struct device *dev = dev_find_slot(0, PCI_DEVFN(0x18, 2)); |
| if (dev == NULL) |
| return AGESA_ERROR; |
| |
| ROMSTAGE_CONST struct northbridge_amd_agesa_family15rl_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 = hudson_readSpd(spdAddress, (void *) info->Buffer, 128); |
| if (err) |
| return AGESA_ERROR; |
| return AGESA_SUCCESS; |
| } |