board/mediatek/mt8516-coral/mt8516-coral.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2019 BayLibre SAS
 */

#include <common.h>
#include <dm.h>
#include <mmc.h>
#include "../../../drivers/watchdog/mtk_wdt.h"

#define WDT_DRIVER_NAME "mtk_wdt"
#define REBOOT_BOOTLOADER_VALUE (1)
#define REBOOT_BOOTLOADER_MASK  (1)
#define REBOOT_BOOTLOADER_SHIFT (2)

int fastboot_set_reboot_flag(void) {
	struct udevice *dev;
	struct uclass *uc;
	int ret = -ENOSYS;

	ret = uclass_get(UCLASS_WDT, &uc);
	if (ret)
		return -ENOSYS;

	uclass_foreach_dev(dev, uc) {
		if (strncmp(dev->driver->name, WDT_DRIVER_NAME, strlen(WDT_DRIVER_NAME)) == 0) {
			mtk_wdt_set_nonrst2(dev, REBOOT_BOOTLOADER_MASK << REBOOT_BOOTLOADER_SHIFT,
			                    REBOOT_BOOTLOADER_VALUE << REBOOT_BOOTLOADER_SHIFT);
			return 0;
		}
	}

	return -ENOSYS;
}

int misc_init_r(void) {
	int ret;
	struct udevice *dev;
	struct uclass *uc;
	struct mmc *mmc;
	int reg_val;
	int mmc_dev = 0;

	ret = uclass_get(UCLASS_WDT, &uc);
	if (ret)
		return -ENOSYS;

	uclass_foreach_dev(dev, uc) {
		if (strncmp(dev->driver->name, WDT_DRIVER_NAME, strlen(WDT_DRIVER_NAME)) == 0) {
			reg_val = mtk_wdt_get_nonrst2(dev);
			if (reg_val & (REBOOT_BOOTLOADER_VALUE << REBOOT_BOOTLOADER_SHIFT)) {
				env_set("force_fastboot", "1");
				mtk_wdt_set_nonrst2(dev, REBOOT_BOOTLOADER_MASK << REBOOT_BOOTLOADER_SHIFT, 0);
			}
		}
	}

	env_set("serial#", "0123456789ABCDEF");

	mmc = find_mmc_device(mmc_dev);
	if (mmc) {
		if (!mmc_init(mmc) && mmc->capacity >= 7000000000) {
			printf("EVT2 detected\n");
			env_set("evt2_board", "1");
		}
	}

	return 0;
}

int board_init(void)
{
	struct udevice *dev;

	uclass_first_device_err(UCLASS_USB_GADGET_GENERIC, &dev);

#ifdef CONFIG_USB_ETHER
	usb_ether_init();
#endif

	return 0;
}