spd_util.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <stdint.h>
#include <string.h>
 
#include "spd.h"
 
void mainboard_fill_dq_map_data(void *dq_map_ptr)
{
        /* DQ byte map */
        const u8 dq_map[2][12] = {
                {0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0, 0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00},
                {0x33, 0xCC, 0x00, 0xCC, 0x33, 0xCC, 0x33, 0x00, 0xFF, 0x00, 0xFF, 0x00}};
        memcpy(dq_map_ptr, dq_map, sizeof(dq_map));
}
 
void mainboard_fill_dqs_map_data(void *dqs_map_ptr)
{
        /* DQS CPU<>DRAM map */
        const u8 dqs_map[2][8] = {{0, 1, 3, 2, 4, 5, 6, 7}, {1, 0, 4, 5, 2, 3, 6, 7}};
        memcpy(dqs_map_ptr, dqs_map, sizeof(dqs_map));
}
 
void mainboard_fill_rcomp_res_data(void *rcomp_ptr)
{
        /* Rcomp resistor */
        const u16 RcompResistor[3] = {200, 81, 162};
        memcpy(rcomp_ptr, RcompResistor, sizeof(RcompResistor));
}
 
void mainboard_fill_rcomp_strength_data(void *rcomp_strength_ptr)
{
        /* Rcomp target */
        static const u16 RcompTarget[5] = {100, 40, 40, 23, 40};
 
        memcpy(rcomp_strength_ptr, RcompTarget, sizeof(RcompTarget));
}