u-boot/drivers/net/phy/smsc.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * SMSC PHY drivers
 *
 * Base code from drivers/net/phy/davicom.c
 *   Copyright 2010-2011 Freescale Semiconductor, Inc.
 *   author Andy Fleming
 *
 * Some code copied from linux kernel
 * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
 */
#include <common.h>
#include <miiphy.h>
#include <asm/gpio.h>
#include <asm/arch/gpio.h>

/* This code does not check the partner abilities. */
static int smsc_parse_status(struct phy_device *phydev)
{
	int mii_reg;

	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);

	if (mii_reg & (BMSR_100FULL | BMSR_100HALF))
		phydev->speed = SPEED_100;
	else
		phydev->speed = SPEED_10;

	if (mii_reg & (BMSR_10FULL | BMSR_100FULL))
		phydev->duplex = DUPLEX_FULL;
	else
		phydev->duplex = DUPLEX_HALF;

	return 0;
}

static int smsc_startup(struct phy_device *phydev)
{
	int ret;

	ret = genphy_update_link(phydev);
	if (ret)
		return ret;

	return smsc_parse_status(phydev);
}

#if 1
static int olinuxino_smsc_startup(struct phy_device *phydev)
{
    int ret;

    ret = gpio_request(SUNXI_GPA(17), "lan8710-txerr");
    if(ret)
        return ret;
    gpio_direction_output(SUNXI_GPA(17), 0);

    ret = genphy_update_link(phydev);
    if (ret)
        return ret;

    return genphy_parse_link(phydev);
}

static int olinuxino_smsc_shutdown(struct phy_device *phydev)
{
    sunxi_gpio_set_cfgpin(SUNXI_GPA(17), SUNXI_GPIO_INPUT);
	return 0;
}
#endif

static struct phy_driver lan8700_driver = {
	.name = "SMSC LAN8700",
	.uid = 0x0007c0c0,
	.mask = 0xffff0,
	.features = PHY_BASIC_FEATURES,
	.config = &genphy_config_aneg,
	.startup = &smsc_startup,
	.shutdown = &genphy_shutdown,
};

static struct phy_driver lan911x_driver = {
	.name = "SMSC LAN911x Internal PHY",
	.uid = 0x0007c0d0,
	.mask = 0xffff0,
	.features = PHY_BASIC_FEATURES,
	.config = &genphy_config_aneg,
	.startup = &smsc_startup,
	.shutdown = &genphy_shutdown,
};

static struct phy_driver lan8710_driver = {
	.name = "SMSC LAN8710/LAN8720",
	.uid = 0x0007c0f0,
	.mask = 0xffff0,
	.features = PHY_BASIC_FEATURES,
	.config = &genphy_config_aneg,
#if 1
	.startup = &olinuxino_smsc_startup,
	.shutdown = &olinuxino_smsc_shutdown,
#else
    .startup = &genphy_startup,
    .shutdown = &genphy_shutdown,
#endif
};

static struct phy_driver lan8740_driver = {
	.name = "SMSC LAN8740",
	.uid = 0x0007c110,
	.mask = 0xffff0,
	.features = PHY_BASIC_FEATURES,
	.config = &genphy_config_aneg,
	.startup = &genphy_startup,
	.shutdown = &genphy_shutdown,
};

static struct phy_driver lan8741_driver = {
	.name = "SMSC LAN8741",
	.uid = 0x0007c120,
	.mask = 0xffff0,
	.features = PHY_BASIC_FEATURES,
	.config = &genphy_config_aneg,
	.startup = &genphy_startup,
	.shutdown = &genphy_shutdown,
};

static struct phy_driver lan8742_driver = {
	.name = "SMSC LAN8742",
	.uid = 0x0007c130,
	.mask = 0xffff0,
	.features = PHY_BASIC_FEATURES,
	.config = &genphy_config_aneg,
	.startup = &genphy_startup,
	.shutdown = &genphy_shutdown,
};

int phy_smsc_init(void)
{
	phy_register(&lan8710_driver);
	phy_register(&lan911x_driver);
	phy_register(&lan8700_driver);
	phy_register(&lan8740_driver);
	phy_register(&lan8741_driver);
	phy_register(&lan8742_driver);

	return 0;
}