src/soc/intel/common/smbios.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2017 Intel 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 <smbios.h>
#include "smbios.h"
#include <string.h>
#include <console/console.h>
#include <device/dram/ddr3.h>

/* Fill the SMBIOS memory information from FSP MEM_INFO_DATA_HOB in CBMEM.*/
void dimm_info_fill(struct dimm_info *dimm, u32 dimm_capacity, u8 ddr_type,
		u32 frequency, u8 rank_per_dimm, u8 channel_id, u8 dimm_id,
		const char *module_part_num, size_t module_part_number_size,
		const u8 *module_serial_num, u16 data_width, u32 vdd_voltage,
		bool ecc_support, u16 mod_id, u8 mod_type)
{
	dimm->mod_id = mod_id;
	/* Translate to DDR2 module type field that SMBIOS code expects. */
	switch (mod_type) {
	case SPD_DIMM_TYPE_SO_DIMM:
		dimm->mod_type = SPD_SODIMM;
		break;
	case SPD_DIMM_TYPE_72B_SO_CDIMM:
		dimm->mod_type = SPD_72B_SO_CDIMM;
		break;
	case SPD_DIMM_TYPE_72B_SO_RDIMM:
		dimm->mod_type = SPD_72B_SO_RDIMM;
		break;
	case SPD_DIMM_TYPE_UDIMM:
		dimm->mod_type = SPD_UDIMM;
		break;
	case SPD_DIMM_TYPE_RDIMM:
		dimm->mod_type = SPD_RDIMM;
		break;
	case SPD_DIMM_TYPE_UNDEFINED:
	default:
		dimm->mod_type = SPD_UNDEFINED;
		break;
	}
	dimm->dimm_size = dimm_capacity;
	dimm->ddr_type = ddr_type;
	dimm->ddr_frequency = frequency;
	dimm->rank_per_dimm = rank_per_dimm;
	dimm->channel_num = channel_id;
	dimm->dimm_num = dimm_id;
	if (vdd_voltage > 0xFFFF) {
		dimm->vdd_voltage = 0xFFFF;
	} else {
		dimm->vdd_voltage = vdd_voltage;
	}

	strncpy((char *)dimm->module_part_number,
			module_part_num,
			min(sizeof(dimm->module_part_number),
				module_part_number_size));
	if (module_serial_num)
		memcpy(dimm->serial, module_serial_num,
		       DIMM_INFO_SERIAL_SIZE);
	switch (data_width) {
	case 8:
		dimm->bus_width = MEMORY_BUS_WIDTH_8;
		break;
	case 16:
		dimm->bus_width = MEMORY_BUS_WIDTH_16;
		break;
	case 32:
		dimm->bus_width = MEMORY_BUS_WIDTH_32;
		break;
	case 64:
		dimm->bus_width = MEMORY_BUS_WIDTH_64;
		break;
	case 128:
		dimm->bus_width = MEMORY_BUS_WIDTH_128;
		break;
	default:
		printk(BIOS_NOTICE, "Incorrect DIMM Data width: %u\n",
		       (unsigned int)data_width);
	}

	if (ecc_support)
		dimm->bus_width |= 0x8;
}