| /* 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; |
| } |