static int tc_mii_probe(struct net_device *dev)
{
struct tc35815_local *lp = netdev_priv(dev);
struct phy_device *phydev;
u32 dropmask;
phydev = phy_find_first(lp->mii_bus);
if (!phydev) {
printk(KERN_ERR "%s: no PHY found\n", dev->name);
return -ENODEV;
}
/* attach the mac to the phy */
phydev = phy_connect(dev, phydev_name(phydev),
&tc_handle_link_change,
lp->chiptype == TC35815_TX4939 ? PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII);
if (IS_ERR(phydev)) {
printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
return PTR_ERR(phydev);
}
phy_attached_info(phydev);
/* mask with MAC supported features */
phydev->supported &= PHY_BASIC_FEATURES;
dropmask = 0;
if (options.speed == 10)
dropmask |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
else if (options.speed == 100)
dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
if (options.duplex == 1)
dropmask |= SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full;
else if (options.duplex == 2)
dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_100baseT_Half;
phydev->supported &= ~dropmask;
phydev->advertising = phydev->supported;
lp->link = 0;
lp->speed = 0;
lp->duplex = -1;
return 0;
}
static int lpc_mii_probe(struct net_device *ndev)
{
struct netdata_local *pldat = netdev_priv(ndev);
struct phy_device *phydev = phy_find_first(pldat->mii_bus);
if (!phydev) {
netdev_err(ndev, "no PHY found\n");
return -ENODEV;
}
/* Attach to the PHY */
if (lpc_phy_interface_mode(&pldat->pdev->dev) == PHY_INTERFACE_MODE_MII)
netdev_info(ndev, "using MII interface\n");
else
netdev_info(ndev, "using RMII interface\n");
phydev = phy_connect(ndev, phydev_name(phydev),
&lpc_handle_link_change,
lpc_phy_interface_mode(&pldat->pdev->dev));
if (IS_ERR(phydev)) {
netdev_err(ndev, "Could not attach to PHY\n");
return PTR_ERR(phydev);
}
/* mask with MAC supported features */
phydev->supported &= PHY_BASIC_FEATURES;
phydev->advertising = phydev->supported;
pldat->link = 0;
pldat->speed = 0;
pldat->duplex = -1;
phy_attached_info(phydev);
return 0;
}
static int pci_eth_mii_probe(struct net_device *dev)
{
struct pci_eth_private *priv = netdev_priv(dev);
struct phy_device *phydev = NULL;
phydev = phy_find_first(priv->mii_bus);
if (!phydev) {
dev_err(&priv->pdev->dev, "no PHY found\n");
return -ENODEV;
}
phydev = phy_connect(dev, phydev_name(phydev), &pci_eth_adjust_link,
PHY_INTERFACE_MODE_MII);
if (IS_ERR(phydev)) {
dev_err(&priv->pdev->dev, "could not attach to PHY\n");
return PTR_ERR(phydev);
}
/* mask with MAC supported features */
phydev->supported &= (SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full
| SUPPORTED_100baseT_Half
| SUPPORTED_100baseT_Full
| SUPPORTED_Autoneg
| SUPPORTED_MII
| SUPPORTED_TP);
phydev->advertising = phydev->supported;
priv->phydev = phydev;
priv->old_link = 0;
priv->old_duplex = -1;
phy_attached_info(phydev);
return 0;
}
static int dsa_slave_phy_setup(struct dsa_slave_priv *p,
struct net_device *slave_dev)
{
struct dsa_switch *ds = p->parent;
struct dsa_chip_data *cd = ds->pd;
struct device_node *phy_dn, *port_dn;
bool phy_is_fixed = false;
u32 phy_flags = 0;
int mode, ret;
port_dn = cd->port_dn[p->port];
mode = of_get_phy_mode(port_dn);
if (mode < 0)
mode = PHY_INTERFACE_MODE_NA;
p->phy_interface = mode;
phy_dn = of_parse_phandle(port_dn, "phy-handle", 0);
if (of_phy_is_fixed_link(port_dn)) {
/* In the case of a fixed PHY, the DT node associated
* to the fixed PHY is the Port DT node
*/
ret = of_phy_register_fixed_link(port_dn);
if (ret) {
netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret);
return ret;
}
phy_is_fixed = true;
phy_dn = port_dn;
}
if (ds->drv->get_phy_flags)
phy_flags = ds->drv->get_phy_flags(ds, p->port);
if (phy_dn) {
int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn);
/* If this PHY address is part of phys_mii_mask, which means
* that we need to divert reads and writes to/from it, then we
* want to bind this device using the slave MII bus created by
* DSA to make that happen.
*/
if (!phy_is_fixed && phy_id >= 0 &&
(ds->phys_mii_mask & (1 << phy_id))) {
ret = dsa_slave_phy_connect(p, slave_dev, phy_id);
if (ret) {
netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret);
return ret;
}
} else {
p->phy = of_phy_connect(slave_dev, phy_dn,
dsa_slave_adjust_link,
phy_flags,
p->phy_interface);
}
}
if (p->phy && phy_is_fixed)
fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update);
/* We could not connect to a designated PHY, so use the switch internal
* MDIO bus instead
*/
if (!p->phy) {
ret = dsa_slave_phy_connect(p, slave_dev, p->port);
if (ret) {
netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret);
return ret;
}
}
phy_attached_info(p->phy);
return 0;
}
/**
* stmmac_mdio_register
* @ndev: net device structure
* Description: it registers the MII bus
*/
int stmmac_mdio_register(struct net_device *ndev)
{
int err = 0;
struct mii_bus *new_bus;
struct stmmac_priv *priv = netdev_priv(ndev);
struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
struct device_node *mdio_node = priv->plat->mdio_node;
struct device *dev = ndev->dev.parent;
int addr, found, max_addr;
if (!mdio_bus_data)
return 0;
new_bus = mdiobus_alloc();
if (!new_bus)
return -ENOMEM;
if (mdio_bus_data->irqs)
memcpy(new_bus->irq, mdio_bus_data->irqs, sizeof(new_bus->irq));
#ifdef CONFIG_OF
if (priv->device->of_node)
mdio_bus_data->reset_gpio = -1;
#endif
new_bus->name = "stmmac";
if (priv->plat->has_xgmac) {
new_bus->read = &stmmac_xgmac2_mdio_read;
new_bus->write = &stmmac_xgmac2_mdio_write;
/* Right now only C22 phys are supported */
max_addr = MII_XGMAC_MAX_C22ADDR + 1;
/* Check if DT specified an unsupported phy addr */
if (priv->plat->phy_addr > MII_XGMAC_MAX_C22ADDR)
dev_err(dev, "Unsupported phy_addr (max=%d)\n",
MII_XGMAC_MAX_C22ADDR);
} else {
new_bus->read = &stmmac_mdio_read;
new_bus->write = &stmmac_mdio_write;
max_addr = PHY_MAX_ADDR;
}
new_bus->reset = &stmmac_mdio_reset;
snprintf(new_bus->id, MII_BUS_ID_SIZE, "%s-%x",
new_bus->name, priv->plat->bus_id);
new_bus->priv = ndev;
new_bus->phy_mask = mdio_bus_data->phy_mask;
new_bus->parent = priv->device;
err = of_mdiobus_register(new_bus, mdio_node);
if (err != 0) {
dev_err(dev, "Cannot register the MDIO bus\n");
goto bus_register_fail;
}
if (priv->plat->phy_node || mdio_node)
goto bus_register_done;
found = 0;
for (addr = 0; addr < max_addr; addr++) {
struct phy_device *phydev = mdiobus_get_phy(new_bus, addr);
if (!phydev)
continue;
/*
* If an IRQ was provided to be assigned after
* the bus probe, do it here.
*/
if (!mdio_bus_data->irqs &&
(mdio_bus_data->probed_phy_irq > 0)) {
new_bus->irq[addr] = mdio_bus_data->probed_phy_irq;
phydev->irq = mdio_bus_data->probed_phy_irq;
}
/*
* If we're going to bind the MAC to this PHY bus,
* and no PHY number was provided to the MAC,
* use the one probed here.
*/
if (priv->plat->phy_addr == -1)
priv->plat->phy_addr = addr;
phy_attached_info(phydev);
found = 1;
}
if (!found && !mdio_node) {
dev_warn(dev, "No PHY found\n");
mdiobus_unregister(new_bus);
mdiobus_free(new_bus);
return -ENODEV;
}
bus_register_done:
priv->mii = new_bus;
return 0;
bus_register_fail:
mdiobus_free(new_bus);
return err;
}
