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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2009 coresystems GmbH
* Copyright (C) 2013 Google Inc.
* Copyright (C) 2015 Intel Corporation.
*
* 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 <console/console.h>
#include <device/device.h>
#include <gpio.h>
#include <stdlib.h>
#include <string.h>
#include <soc/nhlt.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include "ec.h"
#include "gpio.h"
static const char *oem_id_maxim = "INTEL";
static const char *oem_table_id_maxim = "SCRDMAX";
static void mainboard_init(device_t dev)
{
mainboard_ec_init();
}
static uint8_t select_audio_codec(void)
{
int audio_db_sel = gpio_get(AUDIO_DB_ID);
return audio_db_sel;
}
static unsigned long mainboard_write_acpi_tables(
device_t device, unsigned long current, acpi_rsdp_t *rsdp)
{
uintptr_t start_addr;
uintptr_t end_addr;
struct nhlt *nhlt;
const char *oem_id = NULL;
const char *oem_table_id = NULL;
start_addr = current;
nhlt = nhlt_init();
if (nhlt == NULL)
return start_addr;
/* 2 Channel DMIC array. */
if (nhlt_soc_add_dmic_array(nhlt, 2))
printk(BIOS_ERR, "Couldn't add 2CH DMIC array.\n");
/* 4 Channel DMIC array. */
if (nhlt_soc_add_dmic_array(nhlt, 4))
printk(BIOS_ERR, "Couldn't add 4CH DMIC arrays.\n");
if (select_audio_codec()) {
/* ADI Smart Amps for left and right. */
if (nhlt_soc_add_ssm4567(nhlt, AUDIO_LINK_SSP0))
printk(BIOS_ERR, "Couldn't add ssm4567.\n");
} else {
/* MAXIM Smart Amps for left and right. */
if (nhlt_soc_add_max98357(nhlt, AUDIO_LINK_SSP0))
printk(BIOS_ERR, "Couldn't add max98357.\n");
oem_id = oem_id_maxim;
oem_table_id = oem_table_id_maxim;
}
/* NAU88l25 Headset codec. */
if (nhlt_soc_add_nau88l25(nhlt, AUDIO_LINK_SSP1))
printk(BIOS_ERR, "Couldn't add headset codec.\n");
end_addr = nhlt_soc_serialize_oem_overrides(nhlt, start_addr,
oem_id, oem_table_id);
if (end_addr != start_addr)
acpi_add_table(rsdp, (void *)start_addr);
return end_addr;
}
/*
* mainboard_enable is executed as first thing after
* enumerate_buses().
*/
static void mainboard_enable(device_t dev)
{
dev->ops->init = mainboard_init;
dev->ops->write_acpi_tables = mainboard_write_acpi_tables;
dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
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