src/soc/intel/common/smbios.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <smbios.h>
   4 #include "smbios.h"
   5 #include <string.h>
   6 #include <commonlib/helpers.h>
   7 #include <device/dram/ddr3.h>
   8 #include <dimm_info_util.h>
   9
  10 #define EXTENSION_BUS_WIDTH_8BITS       8
  11
  12 /* Fill the SMBIOS memory information from FSP MEM_INFO_DATA_HOB in CBMEM.*/
  13 void dimm_info_fill(struct dimm_info *dimm, u32 dimm_capacity, u8 ddr_type,
  14                 u32 frequency, u8 rank_per_dimm, u8 channel_id, u8 dimm_id,
  15                 const char *module_part_num, size_t module_part_number_size,
  16                 const u8 *module_serial_num, u16 data_width, u32 vdd_voltage,
  17                 bool ecc_support, u16 mod_id, u8 mod_type, u8 ctrlr_id,
  18                 u32 max_frequency)
  19 {
  20         dimm->mod_id = mod_id;
  21         dimm->mod_type = mod_type;
  22         dimm->dimm_size = dimm_capacity;
  23         dimm->ddr_type = ddr_type;
  24         /* keep ddr_frequency for backward compatible */
  25         dimm->ddr_frequency = frequency;
  26         dimm->configured_speed_mts = frequency;
  27         dimm->max_speed_mts = max_frequency;
  28         dimm->rank_per_dimm = rank_per_dimm;
  29         dimm->channel_num = channel_id;
  30         dimm->dimm_num = dimm_id;
  31         dimm->ctrlr_num = ctrlr_id;
  32
  33         if (vdd_voltage > 0xFFFF) {
  34                 dimm->vdd_voltage = 0xFFFF;
  35         } else {
  36                 dimm->vdd_voltage = vdd_voltage;
  37         }
  38
  39         strncpy((char *)dimm->module_part_number,
  40                         module_part_num,
  41                         MIN(sizeof(dimm->module_part_number),
  42                                 module_part_number_size));
  43         if (module_serial_num)
  44                 memcpy(dimm->serial, module_serial_num,
  45                        DIMM_INFO_SERIAL_SIZE);
  46
  47         uint16_t total_width = data_width;
  48
  49         if (ecc_support)
  50                 total_width += EXTENSION_BUS_WIDTH_8BITS;
  51
  52         dimm->bus_width = smbios_bus_width_to_spd_width(ddr_type, total_width, data_width);
  53 }