u-boot/board/toradex/colibri_t30/colibri_t30.c

// SPDX-License-Identifier: GPL-2.0+
/*
 *  (C) Copyright 2014-2016
 *  Stefan Agner <stefan@agner.ch>
 */

#include <common.h>
#include <env.h>
#include <init.h>
#include <asm/arch/gp_padctrl.h>
#include <asm/arch/pinmux.h>
#include <asm/arch-tegra/ap.h>
#include <asm/arch-tegra/tegra.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <fdt_support.h>
#include <i2c.h>
#include <linux/delay.h>
#include "pinmux-config-colibri_t30.h"
#include "../common/tdx-common.h"

int arch_misc_init(void)
{
	if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
	    NVBOOTTYPE_RECOVERY)
		printf("USB recovery mode\n");

	return 0;
}

int checkboard(void)
{
	puts("Model: Toradex Colibri T30 1GB\n");

	return 0;
}

#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, struct bd_info *bd)
{
	u8 enetaddr[6];

	/* MAC addr */
	if (eth_env_get_enetaddr("ethaddr", enetaddr)) {
		int err = fdt_find_and_setprop(blob,
					       "/usb@7d004000/ethernet@1",
					       "local-mac-address", enetaddr, 6, 0);

		/* Older device trees might have used a different node name */
		if (err < 0)
			err = fdt_find_and_setprop(blob,
						   "/usb@7d004000/asix@1",
						   "local-mac-address", enetaddr, 6, 0);

		if (err >= 0)
			puts("   MAC address updated...\n");
	}

	return ft_common_board_setup(blob, bd);
}
#endif

/*
 * Routine: pinmux_init
 * Description: Do individual peripheral pinmux configs
 */
void pinmux_init(void)
{
	pinmux_config_pingrp_table(tegra3_pinmux_common,
				   ARRAY_SIZE(tegra3_pinmux_common));

	pinmux_config_pingrp_table(unused_pins_lowpower,
				   ARRAY_SIZE(unused_pins_lowpower));

	/* Initialize any non-default pad configs (APB_MISC_GP regs) */
	pinmux_config_drvgrp_table(colibri_t30_padctrl,
				   ARRAY_SIZE(colibri_t30_padctrl));
}

/*
 * Disable RS232 serial transceiver ForceOFF# pins on Iris
 */
void gpio_early_init_uart(void)
{
	gpio_request(TEGRA_GPIO(X, 6), "Force OFF# X13");
	gpio_direction_output(TEGRA_GPIO(X, 6), 1);
	gpio_request(TEGRA_GPIO(X, 7), "Force OFF# X14");
	gpio_direction_output(TEGRA_GPIO(X, 7), 1);
}

/*
 * Enable AX88772B USB to LAN controller
 */
void pin_mux_usb(void)
{
	/* Reset ASIX using LAN_RESET */
	gpio_request(TEGRA_GPIO(DD, 0), "LAN_RESET");
	gpio_direction_output(TEGRA_GPIO(DD, 0), 0);
	udelay(5);
	gpio_set_value(TEGRA_GPIO(DD, 0), 1);
}

/*
 * Backlight off before OS handover
 */
void board_preboot_os(void)
{
	gpio_request(TEGRA_GPIO(V, 2), "BL_ON");
	gpio_direction_output(TEGRA_GPIO(V, 2), 0);
}