mainboard.c

Go to the documentation of this file.

/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpi.h>
#include <console/console.h>
#include <device/device.h>
#include <gpio.h>
#include <soc/nhlt.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(struct device *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(
        const struct device *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, 0);
 
                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(struct device *dev)
{
        dev->ops->init = mainboard_init;
        dev->ops->write_acpi_tables = mainboard_write_acpi_tables;
}
 
struct chip_operations mainboard_ops = {
        .enable_dev = mainboard_enable,
};