memory.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <baseboard/variants.h>
#include <console/console.h>
#include <gpio.h>
#include <spd_bin.h>
#include <string.h>
#include <variant/gpio.h>
#include <amdblocks/dimm_spd.h>
 
uint8_t __weak variant_memory_sku(void)
{
        gpio_t pads[] = {
                [3] = MEM_CONFIG3,
                [2] = MEM_CONFIG2,
                [1] = MEM_CONFIG1,
                [0] = MEM_CONFIG0,
        };
 
        return gpio_base2_value(pads, ARRAY_SIZE(pads));
}
 
int __weak variant_mainboard_read_spd(uint8_t spdAddress,
                                                        char *buf, size_t len)
{
        u8 spd_index = variant_memory_sku();
 
        printk(BIOS_INFO, "%s SPD index %d\n", __func__, spd_index);
 
        void *spd = (void *)spd_cbfs_map(spd_index);
        if (!spd) {
                printk(BIOS_ERR, "spd.bin not found\n");
                return -1;
        }
 
        if (len != CONFIG_DIMM_SPD_SIZE) {
                printk(BIOS_ERR, "spd.bin is not the correct size\n");
                return -1;
        }
 
        memcpy(buf, spd, len);
 
        return 0;
}