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/*
* This file is part of the coreboot project.
*
* Copyright 2018 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/cpu.h>
#include <assert.h>
#include <baseboard/variants.h>
#include <cbfs.h>
#include <chip.h>
#include <commonlib/cbfs_serialized.h>
#include <compiler.h>
#include <device/device.h>
#include <drivers/intel/gma/opregion.h>
#include <ec/google/chromeec/ec.h>
#include <intelblocks/mp_init.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_R 25
static uint32_t get_pl2(uint32_t sku_id)
{
if ((sku_id == SKU_0_SONA) || (sku_id == SKU_1_SONA)) {
if (cpuid_eax(1) == CPUID_KABYLAKE_Y0)
return PL2_DEFAULT;
return PL2_KBL_R;
}
if (cpuid_eax(1) == CPUID_KABYLAKE_Y0)
return PL2_I7_SKU;
return PL2_DEFAULT;
}
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;
}
/* Override dev tree settings per board */
void variant_devtree_update(void)
{
uint32_t sku_id = variant_board_sku();
struct device *root = SA_DEV_ROOT;
config_t *cfg = root->chip_info;
/* Update PL2 based on SKU. */
cfg->tdp_pl2_override = get_pl2(sku_id);
switch (sku_id) {
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_0_SONA:
case SKU_1_SONA:
/* Disable unused port USB port */
cfg->usb2_ports[5].enable = 0;
break;
default:
break;
}
}
const char *smbios_mainboard_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_boot_load_file("oem.bin", oem_bin_data,
sizeof(oem_bin_data),
CBFS_TYPE_RAW);
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:
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";
default:
return "vbt.bin";
break;
}
}
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