| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <arch/romstage.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <fsp/util.h> |
| #include <intelblocks/cfg.h> |
| #include <intelblocks/cse.h> |
| #include <intelblocks/pmclib.h> |
| #include <intelblocks/smbus.h> |
| #include <memory_info.h> |
| #include <soc/intel/common/smbios.h> |
| #include <soc/iomap.h> |
| #include <soc/pm.h> |
| #include <soc/romstage.h> |
| #include <soc/soc_chip.h> |
| #include <string.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) |
| { |
| 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[16] = |
| FSP_SMBIOS_MEMORY_INFO_GUID; |
| const uint8_t *serial_num; |
| const char *dram_part_num = NULL; |
| size_t dram_part_num_len = 0; |
| bool is_dram_part_overridden = false; |
| |
| /* 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 == NULL || 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 == NULL) { |
| 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); |
| is_dram_part_overridden = true; |
| } |
| |
| /* 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 != 2) |
| 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 (!is_dram_part_overridden) { |
| dram_part_num_len = sizeof(src_dimm->ModulePartNum); |
| dram_part_num = (const char *) |
| &src_dimm->ModulePartNum[0]; |
| } |
| |
| u8 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); |
| index++; |
| } |
| } |
| } |
| mem_info->dimm_cnt = index; |
| printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); |
| } |
| |
| void mainboard_romstage_entry(void) |
| { |
| bool s3wake; |
| struct chipset_power_state *ps = pmc_get_power_state(); |
| |
| /* Program MCHBAR, DMIBAR, GDXBAR and EDRAMBAR */ |
| systemagent_early_init(); |
| /* Program SMBus base address and enable it */ |
| smbus_common_init(); |
| /* initialize Heci interface */ |
| heci_init(HECI1_BASE_ADDRESS); |
| |
| s3wake = pmc_fill_power_state(ps) == ACPI_S3; |
| fsp_memory_init(s3wake); |
| pmc_set_disb(); |
| if (!s3wake) |
| save_dimm_info(); |
| } |