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93 lines
2.0 KiB
C
93 lines
2.0 KiB
C
/*
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* Atheros AR71xx built-in ethernet mac driver
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*
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* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* Based on Atheros' AG7100 driver
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/of_mdio.h>
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#include "ag71xx.h"
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static void ag71xx_phy_link_adjust(struct net_device *dev)
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{
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struct ag71xx *ag = netdev_priv(dev);
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struct phy_device *phydev = ag->phy_dev;
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unsigned long flags;
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int status_change = 0;
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spin_lock_irqsave(&ag->lock, flags);
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if (phydev->link) {
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if (ag->duplex != phydev->duplex
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|| ag->speed != phydev->speed) {
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status_change = 1;
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}
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}
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if (phydev->link != ag->link)
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status_change = 1;
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ag->link = phydev->link;
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ag->duplex = phydev->duplex;
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ag->speed = phydev->speed;
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if (status_change)
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ag71xx_link_adjust(ag);
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spin_unlock_irqrestore(&ag->lock, flags);
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}
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int ag71xx_phy_connect(struct ag71xx *ag)
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{
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struct device_node *np = ag->pdev->dev.of_node;
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struct device_node *phy_node;
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int ret;
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if (of_phy_is_fixed_link(np)) {
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ret = of_phy_register_fixed_link(np);
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if (ret < 0) {
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dev_err(&ag->pdev->dev,
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"Failed to register fixed PHY link: %d\n", ret);
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return ret;
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}
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phy_node = of_node_get(np);
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} else {
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phy_node = of_parse_phandle(np, "phy-handle", 0);
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}
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if (!phy_node) {
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dev_err(&ag->pdev->dev,
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"Could not find valid phy node\n");
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return -ENODEV;
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}
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ag->phy_dev = of_phy_connect(ag->dev, phy_node, ag71xx_phy_link_adjust,
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0, ag->phy_if_mode);
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of_node_put(phy_node);
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if (!ag->phy_dev) {
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dev_err(&ag->pdev->dev,
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"Could not connect to PHY device. Deferring probe.\n");
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return -EPROBE_DEFER;
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}
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dev_info(&ag->pdev->dev, "connected to PHY at %s [uid=%08x, driver=%s]\n",
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phydev_name(ag->phy_dev),
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ag->phy_dev->phy_id, ag->phy_dev->drv->name);
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return 0;
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}
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void ag71xx_phy_disconnect(struct ag71xx *ag)
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{
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phy_disconnect(ag->phy_dev);
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}
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