blob: b3bf10296a6a06df17f09d10d32c0e57774cb2ac [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright 2018 Google LLC
*
* 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/acpi.h>
#include <boardid.h>
#include <drivers/vpd/vpd.h>
#include <smbios.h>
#include <soc/gpio.h>
#include <soc/ramstage.h>
#include <variant/gpio.h>
#include <vendorcode/google/chromeos/chromeos.h>
#define VPD_KEY_SYSTEM_SERIAL "serial_number"
#define VPD_KEY_MAINBOARD_SERIAL "mlb_serial_number"
#define VPD_SERIAL_LEN 64
const char *smbios_system_serial_number(void)
{
static char serial[VPD_SERIAL_LEN];
if (vpd_gets(VPD_KEY_SYSTEM_SERIAL, serial, VPD_SERIAL_LEN, VPD_RO))
return serial;
return "";
}
const char *smbios_mainboard_serial_number(void)
{
static char serial[VPD_SERIAL_LEN];
if (vpd_gets(VPD_KEY_MAINBOARD_SERIAL, serial, VPD_SERIAL_LEN, VPD_RO))
return serial;
return "";
}
/* mainboard silk screen shows DIMM-A and DIMM-B */
void smbios_fill_dimm_locator(const struct dimm_info *dimm,
struct smbios_type17 *t)
{
switch (dimm->channel_num) {
case 0:
t->device_locator = smbios_add_string(t->eos, "DIMM-A");
break;
case 1:
t->device_locator = smbios_add_string(t->eos, "DIMM-B");
break;
default:
t->device_locator = smbios_add_string(t->eos, "UNKNOWN");
break;
}
}
static const struct pad_config gpio_unused[] = {
/* SUSWARN# */ PAD_NC(GPP_A13, NONE),
/* SUSACK# */ PAD_NC(GPP_A15, NONE),
/* M2_SKT2_CFG0 */ PAD_NC(GPP_H12, NONE),
/* M2_SKT2_CFG1 */ PAD_NC(GPP_H13, NONE),
};
void mainboard_silicon_init_params(FSP_S_CONFIG *params)
{
const struct pad_config *gpio_table;
size_t num_gpios;
gpio_table = variant_gpio_table(&num_gpios);
cnl_configure_pads(gpio_table, num_gpios);
/* Disable unused pads for devices with board ID > 2 */
if (board_id() > 2)
gpio_configure_pads(gpio_unused, ARRAY_SIZE(gpio_unused));
}
static void mainboard_enable(struct device *dev)
{
dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};