| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2017 Google Inc. |
| * |
| * 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 <cbmem.h> |
| #include <console/console.h> |
| #include <fsp/util.h> |
| #include <memory_info.h> |
| #include <soc/intel/common/smbios.h> |
| #include <soc/meminit.h> |
| #include <string.h> |
| |
| #define FSP_SMBIOS_MEMORY_INFO_GUID \ |
| { \ |
| 0x8c, 0x10, 0xa1, 0x01, 0xee, 0x9d, 0x84, 0x49, \ |
| 0x88, 0xc3, 0xee, 0xe8, 0xc4, 0x9e, 0xfb, 0x89 \ |
| } |
| |
| void save_lpddr4_dimm_info(const struct lpddr4_cfg *lp4cfg, size_t mem_sku) |
| { |
| int channel, dimm, dimm_max, index; |
| size_t hob_size; |
| const DIMM_INFO *src_dimm; |
| struct dimm_info *dest_dimm; |
| struct memory_info *mem_info; |
| const CHANNEL_INFO *channel_info; |
| const FSP_SMBIOS_MEMORY_INFO *memory_info_hob; |
| const uint8_t smbios_memory_info_guid[16] = |
| FSP_SMBIOS_MEMORY_INFO_GUID; |
| |
| if (mem_sku >= lp4cfg->num_skus) { |
| printk(BIOS_ERR, "Too few LPDDR4 SKUs: 0x%zx/0x%zx\n", |
| mem_sku, lp4cfg->num_skus); |
| return; |
| } |
| |
| /* Locate the memory info HOB */ |
| memory_info_hob = fsp_find_extension_hob_by_guid( |
| smbios_memory_info_guid, |
| &hob_size); |
| |
| if (memory_info_hob == NULL || hob_size == 0) { |
| printk(BIOS_ERR, "SMBIOS memory info HOB is missing\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)); |
| |
| /* Describe the first N DIMMs in the system */ |
| index = 0; |
| dimm_max = ARRAY_SIZE(mem_info->dimm); |
| |
| for (channel = 0; channel < memory_info_hob->ChannelCount; channel++) { |
| if (index >= dimm_max) |
| break; |
| channel_info = &memory_info_hob->ChannelInfo[channel]; |
| for (dimm = 0; dimm < channel_info->DimmCount; dimm++) { |
| if (index >= dimm_max) |
| break; |
| src_dimm = &channel_info->DimmInfo[dimm]; |
| dest_dimm = &mem_info->dimm[index]; |
| |
| if (!src_dimm->SizeInMb) |
| continue; |
| |
| /* Populate the DIMM information */ |
| dimm_info_fill(dest_dimm, |
| src_dimm->SizeInMb, |
| memory_info_hob->MemoryType, |
| memory_info_hob->MemoryFrequencyInMHz, |
| channel_info->ChannelId, |
| src_dimm->DimmId, |
| lp4cfg->skus[mem_sku].part_num, |
| strlen(lp4cfg->skus[mem_sku].part_num), |
| memory_info_hob->DataWidth); |
| index++; |
| } |
| } |
| mem_info->dimm_cnt = index; |
| printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); |
| } |