+++ /dev/null
-/*
- * 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 "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);
-}
-
-void ag71xx_phy_start(struct ag71xx *ag)
-{
- struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-
- if (ag->phy_dev) {
- phy_start(ag->phy_dev);
- } else if (pdata->mii_bus_dev && pdata->switch_data) {
- ag71xx_ar7240_start(ag);
- } else {
- ag->link = 1;
- ag71xx_link_adjust(ag);
- }
-}
-
-void ag71xx_phy_stop(struct ag71xx *ag)
-{
- struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
- unsigned long flags;
-
- if (ag->phy_dev)
- phy_stop(ag->phy_dev);
- else if (pdata->mii_bus_dev && pdata->switch_data)
- ag71xx_ar7240_stop(ag);
-
- spin_lock_irqsave(&ag->lock, flags);
- if (ag->link) {
- ag->link = 0;
- ag71xx_link_adjust(ag);
- }
- spin_unlock_irqrestore(&ag->lock, flags);
-}
-
-static int ag71xx_phy_connect_fixed(struct ag71xx *ag)
-{
- struct device *dev = &ag->pdev->dev;
- struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
- int ret = 0;
-
- /* use fixed settings */
- switch (pdata->speed) {
- case SPEED_10:
- case SPEED_100:
- case SPEED_1000:
- break;
- default:
- dev_err(dev, "invalid speed specified\n");
- ret = -EINVAL;
- break;
- }
-
- dev_dbg(dev, "using fixed link parameters\n");
-
- ag->duplex = pdata->duplex;
- ag->speed = pdata->speed;
-
- return ret;
-}
-
-static int ag71xx_phy_connect_multi(struct ag71xx *ag)
-{
- struct device *dev = &ag->pdev->dev;
- struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
- struct phy_device *phydev = NULL;
- int phy_addr;
- int ret = 0;
-
- for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
- if (!(pdata->phy_mask & (1 << phy_addr)))
- continue;
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
- if (ag->mii_bus->phy_map[phy_addr] == NULL)
- continue;
-
- DBG("%s: PHY found at %s, uid=%08x\n",
- dev_name(dev),
- dev_name(&ag->mii_bus->phy_map[phy_addr]->dev),
- ag->mii_bus->phy_map[phy_addr]->phy_id);
-
- if (phydev == NULL)
- phydev = ag->mii_bus->phy_map[phy_addr];
-#else
- if (ag->mii_bus->mdio_map[phy_addr] == NULL)
- continue;
-
- DBG("%s: PHY found at %s, uid=%08x\n",
- dev_name(dev),
- dev_name(&ag->mii_bus->mdio_map[phy_addr]->dev),
- (phydev) ? phydev->phy_id : 0);
-
- if (phydev == NULL)
- phydev = mdiobus_get_phy(ag->mii_bus, phy_addr);
-#endif
- }
-
- if (!phydev) {
- dev_err(dev, "no PHY found with phy_mask=%08x\n",
- pdata->phy_mask);
- return -ENODEV;
- }
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
- ag->phy_dev = phy_connect(ag->dev, dev_name(&phydev->dev),
-#else
- ag->phy_dev = phy_connect(ag->dev, phydev_name(phydev),
-#endif
- &ag71xx_phy_link_adjust,
- pdata->phy_if_mode);
-
- if (IS_ERR(ag->phy_dev)) {
- dev_err(dev, "could not connect to PHY at %s\n",
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
- dev_name(&phydev->dev));
-#else
- phydev_name(phydev));
-#endif
- return PTR_ERR(ag->phy_dev);
- }
-
- /* mask with MAC supported features */
- if (pdata->has_gbit)
- phydev->supported &= PHY_GBIT_FEATURES;
- else
- phydev->supported &= PHY_BASIC_FEATURES;
-
- phydev->advertising = phydev->supported;
-
- dev_info(dev, "connected to PHY at %s [uid=%08x, driver=%s]\n",
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
- dev_name(&phydev->dev),
-#else
- phydev_name(phydev),
-#endif
- phydev->phy_id, phydev->drv->name);
-
- ag->link = 0;
- ag->speed = 0;
- ag->duplex = -1;
-
- return ret;
-}
-
-static int dev_is_class(struct device *dev, void *class)
-{
- if (dev->class != NULL && !strcmp(dev->class->name, class))
- return 1;
-
- return 0;
-}
-
-static struct device *dev_find_class(struct device *parent, char *class)
-{
- if (dev_is_class(parent, class)) {
- get_device(parent);
- return parent;
- }
-
- return device_find_child(parent, class, dev_is_class);
-}
-
-static struct mii_bus *dev_to_mii_bus(struct device *dev)
-{
- struct device *d;
-
- d = dev_find_class(dev, "mdio_bus");
- if (d != NULL) {
- struct mii_bus *bus;
-
- bus = to_mii_bus(d);
- put_device(d);
-
- return bus;
- }
-
- return NULL;
-}
-
-int ag71xx_phy_connect(struct ag71xx *ag)
-{
- struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-
- if (pdata->mii_bus_dev == NULL ||
- pdata->mii_bus_dev->bus == NULL )
- return ag71xx_phy_connect_fixed(ag);
-
- ag->mii_bus = dev_to_mii_bus(pdata->mii_bus_dev);
- if (ag->mii_bus == NULL) {
- dev_err(&ag->pdev->dev, "unable to find MII bus on device '%s'\n",
- dev_name(pdata->mii_bus_dev));
- return -ENODEV;
- }
-
- /* Reset the mdio bus explicitly */
- if (ag->mii_bus->reset) {
- mutex_lock(&ag->mii_bus->mdio_lock);
- ag->mii_bus->reset(ag->mii_bus);
- mutex_unlock(&ag->mii_bus->mdio_lock);
- }
-
- if (pdata->switch_data)
- return ag71xx_ar7240_init(ag);
-
- if (pdata->phy_mask)
- return ag71xx_phy_connect_multi(ag);
-
- return ag71xx_phy_connect_fixed(ag);
-}
-
-void ag71xx_phy_disconnect(struct ag71xx *ag)
-{
- struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
-
- if (pdata->switch_data)
- ag71xx_ar7240_cleanup(ag);
- else if (ag->phy_dev)
- phy_disconnect(ag->phy_dev);
-}
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