ark1668ed-bsp/u-boot/board/engicam/imx8mm/icore_mx8mm.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2016 Amarula Solutions B.V.
 * Copyright (C) 2016 Engicam S.r.l.
 * Author: Jagan Teki <jagan@amarulasolutions.com>
 */

#include <common.h>
#include <miiphy.h>
#include <netdev.h>

#include <asm/io.h>
#include <asm-generic/gpio.h>

#include <linux/delay.h>

#include <asm/arch/clock.h>
#include <asm/arch/imx8mm_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/gpio.h>
#include <asm/mach-imx/iomux-v3.h>

DECLARE_GLOBAL_DATA_PTR;

#if IS_ENABLED(CONFIG_FEC_MXC)

#define FEC_RST_PAD IMX_GPIO_NR(3, 7)
static iomux_v3_cfg_t const fec1_rst_pads[] = {
	IMX8MM_PAD_NAND_DATA01_GPIO3_IO7 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void setup_fec(void)
{
	imx_iomux_v3_setup_multiple_pads(fec1_rst_pads,
					 ARRAY_SIZE(fec1_rst_pads));

	gpio_request(FEC_RST_PAD, "fec1_rst");
	gpio_direction_output(FEC_RST_PAD, 0);
	udelay(500);
	gpio_direction_output(FEC_RST_PAD, 1);
}

int board_phy_config(struct phy_device *phydev)
{
	/* enable rgmii rxc skew and phy mode select to RGMII copper */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);

	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);

	if (phydev->drv->config)
		phydev->drv->config(phydev);

	return 0;
}
#endif

int board_init(void)
{
	if (IS_ENABLED(CONFIG_FEC_MXC))
		setup_fec();

	return 0;
}

int board_mmc_get_env_dev(int devno)
{
	return devno;
}