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/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/cpu.h>
#include <assert.h>
#include <baseboard/variants.h>
#include <cbfs.h>
#include <chip.h>
#include <console/console.h>
#include <cpu/intel/cpu_ids.h>
#include <device/device.h>
#include <drivers/intel/gma/opregion.h>
#include <ec/google/chromeec/ec.h>
#include <intelblocks/power_limit.h>
#include <smbios.h>
#include <soc/ramstage.h>
#include <string.h>
#include <variant/sku.h>
#define PL2_I7_SKU 44
#define PL2_DEFAULT 29
#define PL2_KBL_U 25
/* PL2 ID define*/
#define PL2_ID_DEFAULT 0
#define PL2_ID_SONA_SYNDRA 1
#define PL2_ID_BARD_EKKO 2
static const struct pl2_config {
uint32_t cpuid_y0_pl2;
uint32_t cpuid_non_y0_pl2;
} pl2_config_table[] = {
[PL2_ID_DEFAULT] = { PL2_I7_SKU, PL2_DEFAULT },
[PL2_ID_SONA_SYNDRA] = { PL2_DEFAULT, PL2_KBL_U },
[PL2_ID_BARD_EKKO] = { PL2_DEFAULT, PL2_KBL_U },
};
/* Variant for AKALI */
#define AKALI_SA_AC_LOADLINE 1100
#define AKALI_SA_DC_LOADLINE 1028
#define AKALI_IA_AC_LOADLINE 272
#define AKALI_IA_DC_LOADLINE 247
#define AKALI_GT_AC_LOADLINE 314
#define AKALI_GT_DC_LOADLINE 321
/* We only have Akali and Nami default settings so far */
enum project_sku {
PRJ_AKALI = 1,
};
static const struct {
enum project_sku sku;
int ac_loadline[NUM_VR_DOMAINS];
int dc_loadline[NUM_VR_DOMAINS];
} sku_overwrite_mapping[] = {
{
.sku = PRJ_AKALI,
.ac_loadline = {
AKALI_SA_AC_LOADLINE,
AKALI_IA_AC_LOADLINE,
AKALI_GT_AC_LOADLINE,
AKALI_GT_AC_LOADLINE
},
.dc_loadline = {
AKALI_SA_DC_LOADLINE,
AKALI_IA_DC_LOADLINE,
AKALI_GT_DC_LOADLINE,
AKALI_GT_DC_LOADLINE
}
},
};
static uint32_t get_pl2(int pl2_id)
{
assert(pl2_id < ARRAY_SIZE(pl2_config_table));
if (cpuid_eax(1) == CPUID_KABYLAKE_Y0)
return pl2_config_table[pl2_id].cpuid_y0_pl2;
return pl2_config_table[pl2_id].cpuid_non_y0_pl2;
}
uint32_t variant_board_sku(void)
{
static uint32_t sku_id = SKU_UNKNOWN;
uint32_t id;
if (sku_id != SKU_UNKNOWN)
return sku_id;
if (google_chromeec_cbi_get_sku_id(&id))
return SKU_UNKNOWN;
sku_id = id;
return sku_id;
}
const char *smbios_system_sku(void)
{
static char sku_str[14]; /* sku{0..4294967295} */
snprintf(sku_str, sizeof(sku_str), "sku%u", variant_board_sku());
return sku_str;
}
#define OEM_UNKNOWN 0xff
/*
* Read OEM ID from EC using cbi commands.
* Return value:
* Success = OEM ID read from EC
* Failure = OEM_UNKNOWN (0xff)
*/
static uint8_t read_oem_id(void)
{
static uint8_t oem_id = OEM_UNKNOWN;
uint32_t id;
if (oem_id != OEM_UNKNOWN)
return oem_id;
if (google_chromeec_cbi_get_oem_id(&id))
return OEM_UNKNOWN;
if (id > OEM_UNKNOWN) {
printk(BIOS_ERR, "%s: OEM ID too big %u!\n", __func__, id);
return OEM_UNKNOWN;
}
oem_id = id;
printk(BIOS_DEBUG, "%s: OEM ID=%d\n", __func__, oem_id);
return oem_id;
}
/* "oem.bin" in cbfs contains array of records using the following structure. */
struct oem_mapping {
uint8_t oem_id;
char oem_name[10];
} __packed;
/* Local buffer to read "oem.bin" */
static char oem_bin_data[200];
const char *smbios_mainboard_manufacturer(void)
{
uint8_t oem_id = read_oem_id();
const struct oem_mapping *oem_entry = (void *)&oem_bin_data;
size_t oem_data_size;
size_t curr = 0;
static const char *manuf;
if (manuf)
return manuf;
/* If OEM ID cannot be determined, return default manuf string. */
if (oem_id == OEM_UNKNOWN)
return CONFIG_MAINBOARD_SMBIOS_MANUFACTURER;
oem_data_size = cbfs_load("oem.bin", oem_bin_data,
sizeof(oem_bin_data));
while ((curr < oem_data_size) &&
((oem_data_size - curr) >= sizeof(*oem_entry))) {
if (oem_id == oem_entry->oem_id) {
manuf = oem_entry->oem_name;
break;
}
curr += sizeof(*oem_entry);
oem_entry++;
}
if (manuf == NULL)
manuf = CONFIG_MAINBOARD_SMBIOS_MANUFACTURER;
return manuf;
}
const char *mainboard_vbt_filename(void)
{
uint32_t sku_id = variant_board_sku();
switch (sku_id) {
case SKU_0_PANTHEON:
case SKU_1_PANTHEON:
case SKU_2_PANTHEON:
case SKU_3_PANTHEON:
case SKU_4_PANTHEON:
return "vbt-pantheon.bin";
case SKU_0_VAYNE:
case SKU_1_VAYNE:
case SKU_2_VAYNE:
return "vbt-vayne.bin";
case SKU_0_AKALI:
case SKU_1_AKALI:
case SKU_0_AKALI360:
case SKU_1_AKALI360:
return "vbt-akali.bin";
case SKU_0_BARD:
case SKU_1_BARD:
case SKU_2_BARD:
case SKU_3_BARD:
case SKU_4_BARD:
case SKU_5_BARD:
case SKU_6_BARD:
case SKU_7_BARD:
return "vbt-bard.bin";
default:
return "vbt.bin";
}
}
static int find_sku_mapping(const uint8_t oem_id)
{
/* Check if this OEM ID has a mapping table entry. */
for (int i = 0; i < ARRAY_SIZE(sku_overwrite_mapping); i++)
if (oem_id == sku_overwrite_mapping[i].sku)
return i;
return -1;
}
/* Override dev tree settings per board */
void variant_devtree_update(void)
{
uint32_t sku_id = variant_board_sku();
uint32_t i;
int oem_index;
uint8_t pl2_id = PL2_ID_DEFAULT;
struct device *spi_fpmcu = PCH_DEV_GSPI1;
config_t *cfg = config_of_soc();
switch (sku_id) {
case SKU_0_SONA:
case SKU_1_SONA:
case SKU_0_SYNDRA:
case SKU_1_SYNDRA:
case SKU_2_SYNDRA:
case SKU_3_SYNDRA:
case SKU_4_SYNDRA:
case SKU_5_SYNDRA:
case SKU_6_SYNDRA:
case SKU_7_SYNDRA:
pl2_id = PL2_ID_SONA_SYNDRA;
__fallthrough;
case SKU_0_VAYNE:
case SKU_1_VAYNE:
case SKU_2_VAYNE:
case SKU_0_PANTHEON:
case SKU_1_PANTHEON:
case SKU_2_PANTHEON:
case SKU_3_PANTHEON:
case SKU_4_PANTHEON:
cfg->usb2_ports[5].enable = 0;
spi_fpmcu->enabled = 0;
break;
case SKU_0_BARD:
case SKU_1_BARD:
case SKU_2_BARD:
case SKU_3_BARD:
case SKU_4_BARD:
case SKU_5_BARD:
case SKU_6_BARD:
case SKU_7_BARD:
case SKU_0_EKKO:
case SKU_1_EKKO:
case SKU_2_EKKO:
case SKU_3_EKKO:
case SKU_4_EKKO:
case SKU_5_EKKO:
case SKU_6_EKKO:
case SKU_7_EKKO:
pl2_id = PL2_ID_BARD_EKKO;
cfg->usb2_ports[5].enable = 0;
cfg->usb2_ports[7].enable = 0;
cfg->usb2_ports[8].enable = 0;
cfg->usb2_ports[9].enable = 0;
break;
default:
break;
}
struct soc_power_limits_config *soc_conf;
soc_conf = &cfg->power_limits_config;
/* Update PL2 based on SKU. */
soc_conf->tdp_pl2_override = get_pl2(pl2_id);
/* Overwrite settings for different projects based on OEM ID*/
oem_index = find_sku_mapping(read_oem_id());
/* Return if the OEM ID is not supported or no changes are required */
if (oem_index < 0)
return;
for (i = 0; i < ARRAY_SIZE(cfg->domain_vr_config); i++) {
cfg->domain_vr_config[i].ac_loadline =
sku_overwrite_mapping[oem_index].ac_loadline[i];
cfg->domain_vr_config[i].dc_loadline =
sku_overwrite_mapping[oem_index].dc_loadline[i];
}
}
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