mainboard.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpi.h>
#include <baseboard/variant.h>
#include <console/console.h>
#include <device/device.h>
#include <gpio.h>
#include <soc/nhlt.h>
#include <variant/gpio.h>
#include "ec.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 adi_codec_enable(void)
{
#ifdef AUDIO_DB_ID
        return gpio_get(AUDIO_DB_ID);
#else
        return 1;
#endif
}
 
static uint8_t max_codec_enable(void)
{
#ifdef AUDIO_DB_ID
        return gpio_get(AUDIO_DB_ID) ? 0 : 1;
#else
        return 1;
#endif
}
 
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 (CONFIG(NHLT_DMIC_4CH))
                if (nhlt_soc_add_dmic_array(nhlt, 4))
                        printk(BIOS_ERR, "Couldn't add 4CH DMIC arrays.\n");
 
        /* ADI Smart Amps for left and right. */
        if (CONFIG(NHLT_SSM4567) && adi_codec_enable())
                if (nhlt_soc_add_ssm4567(nhlt, AUDIO_LINK_SSP0))
                        printk(BIOS_ERR, "Couldn't add ssm4567.\n");
 
        /* MAXIM Smart Amps for left and right. */
        if (CONFIG(NHLT_MAX98357) && max_codec_enable()) {
                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;
}
 
static void mainboard_chip_init(void *chip_info)
{
        /* Configure pads prior to SiliconInit() in case there's any
         * dependencies during hardware initialization. */
        gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
}
 
struct chip_operations mainboard_ops = {
        .init = mainboard_chip_init,
        .enable_dev = mainboard_enable,
};