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/* SPDX-License-Identifier: GPL-2.0-only */
#include <stdint.h>
#include <string.h>
#include <baseboard/variant.h>
#include <drivers/vpd/vpd.h>
#include <fsp/soc_binding.h>
#include <smbios.h>
#define K4E6E304EB_MEM_ID 0x5
#define MEM_SINGLE_CHAN0 0x0
#define MEM_SINGLE_CHAN3 0x3
#define MEM_SINGLE_CHAN4 0x4
#define MEM_SINGLE_CHAN7 0x7
#define MEM_SINGLE_CHANB 0xb
#define MEM_SINGLE_CHANC 0xc
#define VPD_KEY_CUSTOMIZATION_ID "customization_id"
#define VPD_CUSTOMIZATION_LEN 32
void variant_memory_init_params(FSPM_UPD *mupd, const int spd_index)
{
FSP_M_CONFIG *mem_cfg;
mem_cfg = &mupd->FspmConfig;
/* 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 } };
/* 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 } };
/* Rcomp resistor */
const u16 RcompResistor[3] = { 200, 81, 162 };
/* Rcomp target */
const u16 RcompTarget[5] = { 100, 40, 40, 23, 40 };
/*Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EB -EGCF*/
const u16 StrengthendRcompTarget[5] = { 100, 40, 40, 21, 40 };
/* Default Rcomp Target assignment */
const u16 *targeted_rcomp = RcompTarget;
/* Override Rcomp Target assignment for specific SKU(s) */
if (spd_index == K4E6E304EB_MEM_ID)
targeted_rcomp = StrengthendRcompTarget;
memcpy(mem_cfg->DqByteMapCh0, dq_map[0], sizeof(mem_cfg->DqByteMapCh0));
memcpy(mem_cfg->DqByteMapCh1, dq_map[1], sizeof(mem_cfg->DqByteMapCh1));
memcpy(mem_cfg->DqsMapCpu2DramCh0, dqs_map[0], sizeof(mem_cfg->DqsMapCpu2DramCh0));
memcpy(mem_cfg->DqsMapCpu2DramCh1, dqs_map[1], sizeof(mem_cfg->DqsMapCpu2DramCh1));
memcpy(mem_cfg->RcompResistor, RcompResistor, sizeof(mem_cfg->RcompResistor));
memcpy(mem_cfg->RcompTarget, targeted_rcomp, sizeof(mem_cfg->RcompTarget));
}
int is_dual_channel(const int spd_index)
{
return (spd_index != MEM_SINGLE_CHAN0
&& spd_index != MEM_SINGLE_CHAN3
&& spd_index != MEM_SINGLE_CHAN4
&& spd_index != MEM_SINGLE_CHAN7
&& spd_index != MEM_SINGLE_CHANB
&& spd_index != MEM_SINGLE_CHANC);
}
/* SKU ID enumeration */
#define SKU_LARS "sku0"
#define SKU_LILI "sku1"
const char *smbios_system_sku(void)
{
if (!CONFIG(VPD))
return SKU_LARS;
static char customization_id[VPD_CUSTOMIZATION_LEN];
if (!vpd_gets(VPD_KEY_CUSTOMIZATION_ID, customization_id,
VPD_CUSTOMIZATION_LEN, VPD_RO))
return SKU_LARS;
if (strstr(customization_id, "LILI"))
return SKU_LILI;
return SKU_LARS;
}
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