| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <string.h> |
| |
| #include <soc/hob_mem.h> |
| |
| #include <smbios.h> |
| #include <memory_info.h> |
| #include <soc/ramstage.h> |
| |
| /* Save the DIMM information for SMBIOS table 17 */ |
| void soc_save_dimm_info(void) |
| { |
| int channel; |
| const CHANNEL_INFO *channel_info; |
| int dimm; |
| const DIMM_INFO *dimm_info; |
| int dimm_max; |
| int index; |
| struct memory_info *mem_info; |
| const FSP_SMBIOS_MEMORY_INFO *memory_info_hob; |
| |
| /* Get the memory info HOB */ |
| memory_info_hob = soc_get_fsp_smbios_memory_info_hob(); |
| |
| if (memory_info_hob == NULL) |
| return; |
| |
| /* Display the data in the FSP_SMBIOS_MEMORY_INFO HOB */ |
| if (CONFIG(DISPLAY_HOBS)) |
| soc_display_fsp_smbios_memory_info_hob(memory_info_hob); |
| |
| /* |
| * Allocate CBMEM area for DIMM information used to populate SMBIOS |
| * table 17 |
| */ |
| mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info)); |
| printk(BIOS_DEBUG, "CBMEM entry for DIMM info: %p\n", mem_info); |
| if (mem_info == NULL) |
| 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; |
| dimm_info = &channel_info->DimmInfo[dimm]; |
| |
| /* Populate the DIMM information */ |
| if (!dimm_info->SizeInMb) |
| continue; |
| |
| mem_info->dimm[index].dimm_size = |
| dimm_info->SizeInMb; |
| mem_info->dimm[index].ddr_type = |
| memory_info_hob->MemoryType; |
| mem_info->dimm[index].ddr_frequency = |
| memory_info_hob->MemoryFrequencyInMHz; |
| mem_info->dimm[index].channel_num = |
| channel_info->ChannelId; |
| mem_info->dimm[index].dimm_num = |
| dimm_info->DimmId; |
| |
| strncpy((char *) |
| mem_info->dimm[index].module_part_number, |
| (char *)dimm_info->ModulePartNum, 18); |
| mem_info->dimm[index].mod_id = |
| dimm_info->MfgId; |
| switch (memory_info_hob->DataWidth) { |
| default: |
| case 8: |
| mem_info->dimm[index].bus_width = |
| MEMORY_BUS_WIDTH_8; |
| break; |
| |
| case 16: |
| mem_info->dimm[index].bus_width = |
| MEMORY_BUS_WIDTH_16; |
| break; |
| |
| case 32: |
| mem_info->dimm[index].bus_width = |
| MEMORY_BUS_WIDTH_32; |
| break; |
| |
| case 64: |
| mem_info->dimm[index].bus_width = |
| MEMORY_BUS_WIDTH_64; |
| break; |
| |
| case 128: |
| mem_info->dimm[index].bus_width = |
| MEMORY_BUS_WIDTH_128; |
| break; |
| } |
| |
| /* Add any mainboard specific information */ |
| mainboard_add_dimm_info(mem_info, channel, dimm, index); |
| index++; |
| } |
| } |
| mem_info->dimm_cnt = index; |
| printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); |
| } |
| |
| /* Add any mainboard specific information */ |
| __attribute__((weak)) void mainboard_add_dimm_info(struct memory_info *mem_info, |
| int channel, int dimm, |
| int index) |
| { |
| printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__); |
| } |