diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/pantherlake/romstage/romstage.c | 99 |
1 files changed, 98 insertions, 1 deletions
diff --git a/src/soc/intel/pantherlake/romstage/romstage.c b/src/soc/intel/pantherlake/romstage/romstage.c index a05adc455e..46be7b96f9 100644 --- a/src/soc/intel/pantherlake/romstage/romstage.c +++ b/src/soc/intel/pantherlake/romstage/romstage.c @@ -18,10 +18,107 @@ #include <string.h> #include <timestamp.h> +#define FSP_SMBIOS_MEMORY_INFO_GUID \ +{ \ + 0xd4, 0x71, 0x20, 0x9b, 0x54, 0xb0, 0x0c, 0x4e, \ + 0x8d, 0x09, 0x11, 0xcf, 0x8b, 0x9f, 0x03, 0x23 \ +} + /* Save the DIMM information for SMBIOS table 17 */ static void save_dimm_info(void) { - /* Update after FSP is released externally released. */ + int node, channel, dimm, dimm_max, index; + size_t hob_size; + const CONTROLLER_INFO *ctrlr_info; + const CHANNEL_INFO *channel_info; + const DIMM_INFO *src_dimm; + struct dimm_info *dest_dimm; + struct memory_info *mem_info; + const MEMORY_INFO_DATA_HOB *meminfo_hob; + const uint8_t smbios_memory_info_guid[sizeof(EFI_GUID)] = FSP_SMBIOS_MEMORY_INFO_GUID; + const uint8_t *serial_num; + const char *dram_part_num = NULL; + size_t dram_part_num_len = 0; + + /* Locate the memory info HOB, presence validated by raminit */ + meminfo_hob = fsp_find_extension_hob_by_guid( + smbios_memory_info_guid, + &hob_size); + if (!meminfo_hob || hob_size == 0) { + printk(BIOS_ERR, "SMBIOS MEMORY_INFO_DATA_HOB not found\n"); + return; + } + + /* + * Allocate CBMEM area for DIMM information used to populate SMBIOS + * table 17 + */ + mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info)); + if (!mem_info) { + printk(BIOS_ERR, "CBMEM entry for DIMM info missing\n"); + return; + } + memset(mem_info, 0, sizeof(*mem_info)); + + /* Allow mainboard to override DRAM part number. */ + dram_part_num = mainboard_get_dram_part_num(); + if (dram_part_num) + dram_part_num_len = strlen(dram_part_num); + + /* Save available DIMM information */ + index = 0; + dimm_max = ARRAY_SIZE(mem_info->dimm); + for (node = 0; node < MAX_NODE; node++) { + ctrlr_info = &meminfo_hob->Controller[node]; + for (channel = 0; channel < MAX_CH && index < dimm_max; channel++) { + channel_info = &ctrlr_info->ChannelInfo[channel]; + if (channel_info->Status != CHANNEL_PRESENT) + continue; + + for (dimm = 0; dimm < MAX_DIMM && index < dimm_max; dimm++) { + src_dimm = &channel_info->DimmInfo[dimm]; + dest_dimm = &mem_info->dimm[index]; + if (src_dimm->Status != DIMM_PRESENT) + continue; + + /* If there is no DRAM part number overridden by + * mainboard then use original one. */ + if (!dram_part_num) { + dram_part_num_len = sizeof(src_dimm->ModulePartNum); + dram_part_num = (const char *) + &src_dimm->ModulePartNum[0]; + } + + uint8_t memProfNum = meminfo_hob->MemoryProfile; + serial_num = src_dimm->SpdSave + SPD_SAVE_OFFSET_SERIAL; + + /* Populate the DIMM information */ + dimm_info_fill(dest_dimm, + src_dimm->DimmCapacity, + meminfo_hob->MemoryType, + meminfo_hob->ConfiguredMemoryClockSpeed, + src_dimm->RankInDimm, + channel_info->ChannelId, + src_dimm->DimmId, + dram_part_num, + dram_part_num_len, + serial_num, + meminfo_hob->DataWidth, + meminfo_hob->VddVoltage[memProfNum], + meminfo_hob->EccSupport, + src_dimm->MfgId, + src_dimm->SpdModuleType, + node, + meminfo_hob->MaximumMemoryClockSpeed); + index++; + } + } + } + mem_info->dimm_cnt = index; + if (mem_info->dimm_cnt == 0) + printk(BIOS_ERR, "No DIMMs found\n"); + else + printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); } void mainboard_romstage_entry(void) |