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/* SPDX-License-Identifier: GPL-2.0-only */
#include <cbfs.h>
#include <console/console.h>
#include <device/dram/ddr3.h>
#include <spd.h>
#include <stdint.h>
#include <string.h>
#include "boardid.h"
#include "spd.h"
void mainboard_fill_dq_map_data(void *dq_map_ch0, void *dq_map_ch1)
{
/* DQ byte map */
const u8 dq_map[2][12] = {
{ 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0,
0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 },
{ 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0,
0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 } };
memcpy(dq_map_ch0, dq_map[0], sizeof(dq_map[0]));
memcpy(dq_map_ch1, dq_map[1], sizeof(dq_map[1]));
}
void mainboard_fill_dqs_map_data(void *dqs_map_ch0, void *dqs_map_ch1)
{
/* DQS CPU<>DRAM map */
const u8 dqs_map[2][8] = {
{ 0, 1, 3, 2, 6, 5, 4, 7 },
{ 2, 3, 0, 1, 6, 7, 4, 5 } };
memcpy(dqs_map_ch0, dqs_map[0], sizeof(dqs_map[0]));
memcpy(dqs_map_ch1, dqs_map[1], sizeof(dqs_map[1]));
}
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)
{
int mem_cfg_id;
mem_cfg_id = get_spd_index();
/* Rcomp target */
static const u16 RcompTarget[5] = {
100, 40, 40, 23, 40 };
/* Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EE -EGCF */
static const u16 StrengthendRcompTarget[5] = {
100, 40, 40, 21, 40 };
if (mem_cfg_id == K4E6E304EE_MEM_ID) {
memcpy(rcomp_strength_ptr, StrengthendRcompTarget,
sizeof(StrengthendRcompTarget));
} else {
memcpy(rcomp_strength_ptr, RcompTarget, sizeof(RcompTarget));
}
}
uintptr_t mainboard_get_spd_data(void)
{
char *spd_file;
int spd_index, spd_span;
size_t spd_file_len;
spd_index = get_spd_index();
printk(BIOS_INFO, "SPD index %d\n", spd_index);
/* Load SPD data from CBFS */
spd_file = cbfs_map("spd.bin", &spd_file_len);
if (!spd_file)
die("SPD data not found.");
/* make sure we have at least one SPD in the file. */
if (spd_file_len < SPD_SIZE_MAX_DDR3)
die("Missing SPD data.");
/* Make sure we did not overrun the buffer */
if (spd_file_len < ((spd_index + 1) * SPD_SIZE_MAX_DDR3)) {
printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n");
spd_index = 0;
}
spd_span = spd_index * SPD_SIZE_MAX_DDR3;
return (uintptr_t)(spd_file + spd_span);
}
int mainboard_has_dual_channel_mem(void)
{
int spd_index;
spd_index = get_spd_index();
if (spd_index != HYNIX_SINGLE_CHAN && spd_index != SAMSUNG_SINGLE_CHAN
&& spd_index != MIC_SINGLE_CHAN) {
printk(BIOS_INFO,
"Dual channel SPD detected writing second channel\n");
return 1;
}
return 0;
}
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