Function rt_phy_reset

components/drivers/phy/phy.c:225–260

}

int rt_phy_reset(struct rt_phy_device *phydev)
{
    int reg;
    int timeout = 500;
    int devad = RT_MDIO_DEVAD_NONE;

    if (phydev->flags & RT_PHY_FLAG_BROKEN_RESET)
        return 0;

    if (rt_phy_write(phydev, devad, RT_MII_BMCR, RT_BMCR_RESET) < 0)
    {
        LOG_D("PHY reset failed\n");
        return -1;
    }

    reg = rt_phy_read(phydev, devad, RT_MII_BMCR);
    while ((reg & RT_BMCR_RESET) && timeout--)
    {
        reg = rt_phy_read(phydev, devad, RT_MII_BMCR);

        if (reg < 0)
        {
            LOG_D("PHY status read failed\n");
            return -1;
        }
        rt_thread_mdelay(1);
    }

    if (reg & RT_BMCR_RESET)
    {
        LOG_D("PHY reset timed out\n");
        return -1;
    }

    return 0;
}

static struct rt_bus rt_phy_bus;