memory.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <baseboard/gpio.h>
#include <baseboard/variants.h>
#include <gpio.h>
#include <soc/romstage.h>
 
static const struct mb_cfg ddr4_mem_config = {
        .type = MEM_TYPE_DDR4,
 
        .rcomp = {
                /* Baseboard uses only 100ohm Rcomp resistors */
                .resistor = 100,
 
                /* Baseboard Rcomp target values */
                .targets = {50, 20, 25, 25, 25},
        },
 
        .ect = 1, /* Early Command Training */
 
        .UserBd = BOARD_TYPE_MOBILE,
 
        .ddr_config = {
                .dq_pins_interleaved = 1,
        },
};
 
const struct mb_cfg *__weak variant_memory_params(void)
{
        return &ddr4_mem_config;
}
 
bool __weak variant_is_half_populated(void)
{
        return false;
}
 
void __weak variant_get_spd_info(struct mem_spd *spd_info)
{
        spd_info->topo = MEM_TOPO_DIMM_MODULE;
        spd_info->smbus[0].addr_dimm[0] = 0x50;
        spd_info->smbus[0].addr_dimm[1] = 0x51;
        spd_info->smbus[1].addr_dimm[0] = 0x52;
        spd_info->smbus[1].addr_dimm[1] = 0x53;
}