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