src/mainboard/intel/harcuvar/spd/spd.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <cbfs.h>
   4 #include <console/console.h>
   5
   6 #include "spd.h"
   7
   8 /* Get SPD data for on-board memory */
   9 uint8_t *mainboard_find_spd_data()
  10 {
  11         uint8_t *spd_data;
  12         int spd_index;
  13         size_t spd_file_len;
  14         char *spd_file;
  15
  16         spd_index = 0;
  17
  18         spd_file = cbfs_map("spd.bin", &spd_file_len);
  19         if (!spd_file)
  20                 die("SPD data not found.");
  21
  22         if (spd_file_len < ((spd_index + 1) * SPD_LEN)) {
  23                 printk(BIOS_ERR,
  24                        "SPD index override to 0 due to incorrect SPD index.\n");
  25                 spd_index = 0;
  26         }
  27
  28         if (spd_file_len < SPD_LEN)
  29                 die("Missing SPD data.");
  30
  31         /* Assume same memory in both channels */
  32         spd_index *= SPD_LEN;
  33         spd_data = (uint8_t *)(spd_file + spd_index);
  34
  35         /* Make sure a valid SPD was found */
  36         if (spd_data[0] == 0)
  37                 die("Invalid SPD data.");
  38
  39         return spd_data;
  40 }