mainboard.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <bl31.h>
#include <bootmode.h>
#include <console/console.h>
#include <device/device.h>
#include <gpio.h>
#include <soc/msdc.h>
#include <soc/spm.h>
#include <soc/usb.h>
 
#include "display.h"
#include "gpio.h"
 
#include <arm-trusted-firmware/include/export/plat/mediatek/common/plat_params_exp.h>
 
static void register_reset_to_bl31(void)
{
        static struct bl_aux_param_gpio param_reset = {
                .h = { .type = BL_AUX_PARAM_MTK_RESET_GPIO },
                .gpio = { .polarity = ARM_TF_GPIO_LEVEL_HIGH },
        };
 
        param_reset.gpio.index = GPIO_RESET.id;
        register_bl31_aux_param(&param_reset.h);
}
 
static void configure_audio(void)
{
        mtcmos_audio_power_on();
 
        /* Set up I2S */
        gpio_set_mode(GPIO(I2S2_MCK), PAD_I2S2_MCK_FUNC_I2S2_MCK);
        gpio_set_mode(GPIO(I2S2_BCK), PAD_I2S2_BCK_FUNC_I2S2_BCK);
        gpio_set_mode(GPIO(I2S2_LRCK), PAD_I2S2_LRCK_FUNC_I2S2_LRCK);
        gpio_set_mode(GPIO(EINT4), PAD_EINT4_FUNC_I2S3_DO);
}
 
static void mainboard_init(struct device *dev)
{
        mtk_msdc_configure_emmc(true);
 
        if (CONFIG(SDCARD_INIT)) {
                printk(BIOS_INFO, "SD card init\n");
 
                /* External SD Card connected via USB */
                gpio_output(GPIO_EN_PP3300_SDBRDG_X, 1);
        }
 
        setup_usb_host();
 
        configure_audio();
 
        if (spm_init())
                printk(BIOS_ERR, "spm init failed, system suspend may not work\n");
 
        register_reset_to_bl31();
 
        if (display_init_required()) {
                if (configure_display() < 0)
                        printk(BIOS_ERR, "%s: Failed to init display\n", __func__);
        } else {
                printk(BIOS_INFO, "%s: Skipped display init\n", __func__);
        }
}
 
static void mainboard_enable(struct device *dev)
{
        dev->ops->init = &mainboard_init;
}
 
struct chip_operations mainboard_ops = {
        .name = CONFIG_MAINBOARD_PART_NUMBER,
        .enable_dev = mainboard_enable,
};