| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <cbfs.h> |
| #include <console/console.h> |
| #include <device/dram/ddr4.h> |
| #include <spd.h> |
| |
| #include "spd.h" |
| |
| /* Get SPD data for on-board memory */ |
| uint8_t *mainboard_find_spd_data(void) |
| { |
| uint8_t *spd_data; |
| int spd_index; |
| size_t spd_file_len; |
| char *spd_file; |
| |
| spd_index = 0; |
| |
| spd_file = cbfs_map("spd.bin", &spd_file_len); |
| if (!spd_file) |
| die("SPD data not found."); |
| |
| if (spd_file_len < ((spd_index + 1) * SPD_SIZE_MAX_DDR4)) { |
| printk(BIOS_ERR, |
| "SPD index override to 0 due to incorrect SPD index.\n"); |
| spd_index = 0; |
| } |
| |
| if (spd_file_len < SPD_SIZE_MAX_DDR4) |
| die("Missing SPD data."); |
| |
| /* Assume same memory in both channels */ |
| spd_index *= SPD_SIZE_MAX_DDR4; |
| spd_data = (uint8_t *)(spd_file + spd_index); |
| |
| /* Make sure a valid SPD was found */ |
| if (spd_data[0] == 0) |
| die("Invalid SPD data."); |
| |
| return spd_data; |
| } |