src/mainboard/intel/mtlrvp/romstage.c

/* SPDX-License-Identifier: GPL-2.0-or-later */

#include <baseboard/variants.h>
#include <console/console.h>
#include <ec/intel/board_id.h>
#include <soc/romstage.h>

#define SPD_ID_MASK 0x7

static size_t get_spd_index(void)
{
	uint8_t board_id = get_rvp_board_id();
	size_t spd_index;

	printk(BIOS_INFO, "board id is 0x%x\n", board_id);

	spd_index = board_id & SPD_ID_MASK;

	printk(BIOS_INFO, "SPD index is 0x%x\n", (unsigned int)spd_index);
	return spd_index;
}

void mainboard_memory_init_params(FSPM_UPD *memupd)
{
	const struct mb_cfg *mem_config = variant_memory_params();
	int board_id = get_rvp_board_id();
	const bool half_populated = false;

	const struct mem_spd memory_down_spd_info = {
		.topo = MEM_TOPO_MEMORY_DOWN,
		.cbfs_index = get_spd_index(),
	};

	const struct mem_spd dimm_module_spd_info = {
		.topo = MEM_TOPO_DIMM_MODULE,
		.smbus = {
			[0] = {
				.addr_dimm[0] = 0x50,
				.addr_dimm[1] = 0x0,
			},
			[1] = {
				.addr_dimm[0] = 0x50,
				.addr_dimm[1] = 0x0,
			},
			[2] = {
				.addr_dimm[0] = 0x52,
				.addr_dimm[1] = 0x0,
			},
			[3] = {
				.addr_dimm[0] = 0x52,
				.addr_dimm[1] = 0x0,
			},
		},
	};

	switch (board_id) {
	case MTLP_DDR5_RVP:
		memcfg_init(memupd, mem_config, &dimm_module_spd_info, half_populated);
		break;
	case MTLP_LP5_T3_RVP:
	case MTLP_LP5_T4_RVP:
		memcfg_init(memupd, mem_config, &memory_down_spd_info, half_populated);
		break;
	default:
		die("Unknown board id = 0x%x\n", board_id);
		break;
	}
}