static int fs_init_phy(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct phy_device *phydev;
phy_interface_t iface;
fep->oldlink = 0;
fep->oldspeed = 0;
fep->oldduplex = -1;
iface = fep->fpi->use_rmii ?
PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII;
phydev = of_phy_connect(dev, fep->fpi->phy_node, &fs_adjust_link, 0,
iface);
if (!phydev) {
phydev = of_phy_connect_fixed_link(dev, &fs_adjust_link,
iface);
}
if (!phydev) {
dev_err(&dev->dev, "Could not attach to PHY\n");
return -ENODEV;
}
fep->phydev = phydev;
return 0;
}
static int emac_mdio_probe(struct net_device *dev)
{
struct emac_board_info *db = netdev_priv(dev);
struct phy_device *phydev;
/* to-do: PHY interrupts are currently not supported */
/* attach the mac to the phy */
phydev = of_phy_connect(db->ndev, db->phy_node,
&emac_handle_link_change, 0,
db->phy_interface);
if (!phydev) {
netdev_err(db->ndev, "could not find the PHY\n");
return -ENODEV;
}
/* mask with MAC supported features */
phydev->supported &= PHY_BASIC_FEATURES;
phydev->advertising = phydev->supported;
db->link = 0;
db->speed = 0;
db->duplex = -1;
return 0;
}
/* slave device setup *******************************************************/
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\n");
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)
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) {
p->phy = ds->slave_mii_bus->phy_map[p->port];
if (!p->phy)
return -ENODEV;
/* Use already configured phy mode */
p->phy_interface = p->phy->interface;
phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
p->phy_interface);
} else {
netdev_info(slave_dev, "attached PHY at address %d [%s]\n",
p->phy->addr, p->phy->drv->name);
}
return 0;
}
int bcmgenet_mii_probe(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
struct device_node *dn = priv->pdev->dev.of_node;
struct phy_device *phydev;
u32 phy_flags;
int ret;
/* Communicate the integrated PHY revision */
phy_flags = priv->gphy_rev;
/* Initialize link state variables that bcmgenet_mii_setup() uses */
priv->old_link = -1;
priv->old_speed = -1;
priv->old_duplex = -1;
priv->old_pause = -1;
if (dn) {
phydev = of_phy_connect(dev, priv->phy_dn, bcmgenet_mii_setup,
phy_flags, priv->phy_interface);
if (!phydev) {
pr_err("could not attach to PHY\n");
return -ENODEV;
}
} else {
phydev = dev->phydev;
phydev->dev_flags = phy_flags;
ret = phy_connect_direct(dev, phydev, bcmgenet_mii_setup,
priv->phy_interface);
if (ret) {
pr_err("could not attach to PHY\n");
return -ENODEV;
}
}
/* Configure port multiplexer based on what the probed PHY device since
* reading the 'max-speed' property determines the maximum supported
* PHY speed which is needed for bcmgenet_mii_config() to configure
* things appropriately.
*/
ret = bcmgenet_mii_config(dev, true);
if (ret) {
phy_disconnect(dev->phydev);
return ret;
}
linkmode_copy(phydev->advertising, phydev->supported);
/* The internal PHY has its link interrupts routed to the
* Ethernet MAC ISRs. On GENETv5 there is a hardware issue
* that prevents the signaling of link UP interrupts when
* the link operates at 10Mbps, so fallback to polling for
* those versions of GENET.
*/
if (priv->internal_phy && !GENET_IS_V5(priv))
dev->phydev->irq = PHY_IGNORE_INTERRUPT;
return 0;
}
static int octeon_mgmt_init_phy(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
if (octeon_is_simulation() || p->phy_np == NULL) {
/* No PHYs in the simulator. */
netif_carrier_on(netdev);
return 0;
}
p->phydev = of_phy_connect(netdev, p->phy_np,
octeon_mgmt_adjust_link, 0,
PHY_INTERFACE_MODE_MII);
if (!p->phydev)
return -ENODEV;
return 0;
}
int mtk_connect_phy_node(struct mtk_eth *eth, struct mtk_mac *mac,
struct device_node *phy_node)
{
const __be32 *_port = NULL;
struct phy_device *phydev;
int phy_mode, port;
_port = of_get_property(phy_node, "reg", NULL);
if (!_port || (be32_to_cpu(*_port) >= 0x20)) {
pr_err("%s: invalid port id\n", phy_node->name);
return -EINVAL;
}
port = be32_to_cpu(*_port);
phy_mode = of_get_phy_mode(phy_node);
if (phy_mode < 0) {
dev_err(eth->dev, "incorrect phy-mode %d\n", phy_mode);
eth->phy->phy_node[port] = NULL;
return -EINVAL;
}
phydev = of_phy_connect(eth->netdev[mac->id], phy_node,
mtk_phy_link_adjust, 0, phy_mode);
if (!phydev) {
dev_err(eth->dev, "could not connect to PHY\n");
eth->phy->phy_node[port] = NULL;
return -ENODEV;
}
phydev->supported &= PHY_GBIT_FEATURES;
phydev->advertising = phydev->supported;
dev_info(eth->dev,
"connected port %d to PHY at %s [uid=%08x, driver=%s]\n",
port, phydev_name(phydev), phydev->phy_id,
phydev->drv->name);
eth->phy->phy[port] = phydev;
eth->link[port] = 0;
return 0;
}
/**
* cvm_oct_phy_setup_device - setup the PHY
*
* @dev: Device to setup
*
* Returns Zero on success, negative on failure
*/
int cvm_oct_phy_setup_device(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
struct device_node *phy_node;
if (!priv->of_node)
return 0;
phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0);
if (!phy_node)
return 0;
priv->phydev = of_phy_connect(dev, phy_node, cvm_oct_adjust_link, 0,
PHY_INTERFACE_MODE_GMII);
if (priv->phydev == NULL)
return -ENODEV;
priv->last_link = 0;
phy_start_aneg(priv->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;
}
static int bcmgenet_mii_probe(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
struct device_node *dn = priv->pdev->dev.of_node;
struct phy_device *phydev;
u32 phy_flags;
int ret;
if (priv->phydev) {
pr_info("PHY already attached\n");
return 0;
}
/* In the case of a fixed PHY, the DT node associated
* to the PHY is the Ethernet MAC DT node.
*/
if (!priv->phy_dn && of_phy_is_fixed_link(dn)) {
ret = of_phy_register_fixed_link(dn);
if (ret)
return ret;
priv->phy_dn = of_node_get(dn);
}
/* Communicate the integrated PHY revision */
phy_flags = priv->gphy_rev;
/* Initialize link state variables that bcmgenet_mii_setup() uses */
priv->old_link = -1;
priv->old_speed = -1;
priv->old_duplex = -1;
priv->old_pause = -1;
phydev = of_phy_connect(dev, priv->phy_dn, bcmgenet_mii_setup,
phy_flags, priv->phy_interface);
if (!phydev) {
pr_err("could not attach to PHY\n");
return -ENODEV;
}
priv->phydev = phydev;
/* Configure port multiplexer based on what the probed PHY device since
* reading the 'max-speed' property determines the maximum supported
* PHY speed which is needed for bcmgenet_mii_config() to configure
* things appropriately.
*/
ret = bcmgenet_mii_config(dev, true);
if (ret) {
phy_disconnect(priv->phydev);
return ret;
}
phydev->advertising = phydev->supported;
/* The internal PHY has its link interrupts routed to the
* Ethernet MAC ISRs
*/
if (phy_is_internal(priv->phydev))
priv->mii_bus->irq[phydev->addr] = PHY_IGNORE_INTERRUPT;
else
priv->mii_bus->irq[phydev->addr] = PHY_POLL;
pr_info("attached PHY at address %d [%s]\n",
phydev->addr, phydev->drv->name);
return 0;
}
static int hip04_mac_probe(struct platform_device *pdev)
{
struct device *d = &pdev->dev;
struct device_node *node = d->of_node;
struct of_phandle_args arg;
struct net_device *ndev;
struct hip04_priv *priv;
struct resource *res;
int irq;
int ret;
ndev = alloc_etherdev(sizeof(struct hip04_priv));
if (!ndev)
return -ENOMEM;
priv = netdev_priv(ndev);
priv->ndev = ndev;
platform_set_drvdata(pdev, ndev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->base = devm_ioremap_resource(d, res);
if (IS_ERR(priv->base)) {
ret = PTR_ERR(priv->base);
goto init_fail;
}
ret = of_parse_phandle_with_fixed_args(node, "port-handle", 2, 0, &arg);
if (ret < 0) {
dev_warn(d, "no port-handle\n");
goto init_fail;
}
priv->port = arg.args[0];
priv->chan = arg.args[1] * RX_DESC_NUM;
hrtimer_init(&priv->tx_coalesce_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
/* BQL will try to keep the TX queue as short as possible, but it can't
* be faster than tx_coalesce_usecs, so we need a fast timeout here,
* but also long enough to gather up enough frames to ensure we don't
* get more interrupts than necessary.
* 200us is enough for 16 frames of 1500 bytes at gigabit ethernet rate
*/
priv->tx_coalesce_frames = TX_DESC_NUM * 3 / 4;
priv->tx_coalesce_usecs = 200;
priv->tx_coalesce_timer.function = tx_done;
priv->map = syscon_node_to_regmap(arg.np);
if (IS_ERR(priv->map)) {
dev_warn(d, "no syscon hisilicon,hip04-ppe\n");
ret = PTR_ERR(priv->map);
goto init_fail;
}
priv->phy_mode = of_get_phy_mode(node);
if (priv->phy_mode < 0) {
dev_warn(d, "not find phy-mode\n");
ret = -EINVAL;
goto init_fail;
}
irq = platform_get_irq(pdev, 0);
if (irq <= 0) {
ret = -EINVAL;
goto init_fail;
}
ret = devm_request_irq(d, irq, hip04_mac_interrupt,
0, pdev->name, ndev);
if (ret) {
netdev_err(ndev, "devm_request_irq failed\n");
goto init_fail;
}
priv->phy_node = of_parse_phandle(node, "phy-handle", 0);
if (priv->phy_node) {
priv->phy = of_phy_connect(ndev, priv->phy_node,
&hip04_adjust_link,
0, priv->phy_mode);
if (!priv->phy) {
ret = -EPROBE_DEFER;
goto init_fail;
}
}
INIT_WORK(&priv->tx_timeout_task, hip04_tx_timeout_task);
ether_setup(ndev);
ndev->netdev_ops = &hip04_netdev_ops;
ndev->ethtool_ops = &hip04_ethtool_ops;
ndev->watchdog_timeo = TX_TIMEOUT;
ndev->priv_flags |= IFF_UNICAST_FLT;
ndev->irq = irq;
netif_napi_add(ndev, &priv->napi, hip04_rx_poll, NAPI_POLL_WEIGHT);
SET_NETDEV_DEV(ndev, &pdev->dev);
hip04_reset_ppe(priv);
if (priv->phy_mode == PHY_INTERFACE_MODE_MII)
hip04_config_port(ndev, SPEED_100, DUPLEX_FULL);
hip04_config_fifo(priv);
random_ether_addr(ndev->dev_addr);
hip04_update_mac_address(ndev);
ret = hip04_alloc_ring(ndev, d);
if (ret) {
netdev_err(ndev, "alloc ring fail\n");
goto alloc_fail;
}
ret = register_netdev(ndev);
if (ret) {
free_netdev(ndev);
goto alloc_fail;
}
return 0;
alloc_fail:
hip04_free_ring(ndev, d);
init_fail:
of_node_put(priv->phy_node);
free_netdev(ndev);
return ret;
}
static int arc_emac_probe(struct platform_device *pdev)
{
struct resource res_regs;
struct device_node *phy_node;
struct arc_emac_priv *priv;
struct net_device *ndev;
const char *mac_addr;
unsigned int id, clock_frequency, irq;
int err;
if (!pdev->dev.of_node)
return -ENODEV;
/* Get PHY from device tree */
phy_node = of_parse_phandle(pdev->dev.of_node, "phy", 0);
if (!phy_node) {
dev_err(&pdev->dev, "failed to retrieve phy description from device tree\n");
return -ENODEV;
}
/* Get EMAC registers base address from device tree */
err = of_address_to_resource(pdev->dev.of_node, 0, &res_regs);
if (err) {
dev_err(&pdev->dev, "failed to retrieve registers base from device tree\n");
return -ENODEV;
}
/* Get CPU clock frequency from device tree */
if (of_property_read_u32(pdev->dev.of_node, "clock-frequency",
&clock_frequency)) {
dev_err(&pdev->dev, "failed to retrieve <clock-frequency> from device tree\n");
return -EINVAL;
}
/* Get IRQ from device tree */
irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
if (!irq) {
dev_err(&pdev->dev, "failed to retrieve <irq> value from device tree\n");
return -ENODEV;
}
ndev = alloc_etherdev(sizeof(struct arc_emac_priv));
if (!ndev)
return -ENOMEM;
platform_set_drvdata(pdev, ndev);
SET_NETDEV_DEV(ndev, &pdev->dev);
ndev->netdev_ops = &arc_emac_netdev_ops;
ndev->ethtool_ops = &arc_emac_ethtool_ops;
ndev->watchdog_timeo = TX_TIMEOUT;
/* FIXME :: no multicast support yet */
ndev->flags &= ~IFF_MULTICAST;
priv = netdev_priv(ndev);
priv->dev = &pdev->dev;
priv->ndev = ndev;
priv->regs = devm_ioremap_resource(&pdev->dev, &res_regs);
if (IS_ERR(priv->regs)) {
err = PTR_ERR(priv->regs);
goto out;
}
dev_dbg(&pdev->dev, "Registers base address is 0x%p\n", priv->regs);
id = arc_reg_get(priv, R_ID);
/* Check for EMAC revision 5 or 7, magic number */
if (!(id == 0x0005fd02 || id == 0x0007fd02)) {
dev_err(&pdev->dev, "ARC EMAC not detected, id=0x%x\n", id);
err = -ENODEV;
goto out;
}
dev_info(&pdev->dev, "ARC EMAC detected with id: 0x%x\n", id);
/* Set poll rate so that it polls every 1 ms */
arc_reg_set(priv, R_POLLRATE, clock_frequency / 1000000);
/* Get max speed of operation from device tree */
if (of_property_read_u32(pdev->dev.of_node, "max-speed",
&priv->max_speed)) {
dev_err(&pdev->dev, "failed to retrieve <max-speed> from device tree\n");
err = -EINVAL;
goto out;
}
ndev->irq = irq;
dev_info(&pdev->dev, "IRQ is %d\n", ndev->irq);
/* Register interrupt handler for device */
err = devm_request_irq(&pdev->dev, ndev->irq, arc_emac_intr, 0,
ndev->name, ndev);
if (err) {
dev_err(&pdev->dev, "could not allocate IRQ\n");
goto out;
}
/* Get MAC address from device tree */
mac_addr = of_get_mac_address(pdev->dev.of_node);
if (mac_addr)
memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
else
eth_hw_addr_random(ndev);
dev_info(&pdev->dev, "MAC address is now %pM\n", ndev->dev_addr);
/* Do 1 allocation instead of 2 separate ones for Rx and Tx BD rings */
priv->rxbd = dmam_alloc_coherent(&pdev->dev, RX_RING_SZ + TX_RING_SZ,
&priv->rxbd_dma, GFP_KERNEL);
if (!priv->rxbd) {
dev_err(&pdev->dev, "failed to allocate data buffers\n");
err = -ENOMEM;
goto out;
}
priv->txbd = priv->rxbd + RX_BD_NUM;
priv->txbd_dma = priv->rxbd_dma + RX_RING_SZ;
dev_dbg(&pdev->dev, "EMAC Device addr: Rx Ring [0x%x], Tx Ring[%x]\n",
(unsigned int)priv->rxbd_dma, (unsigned int)priv->txbd_dma);
err = arc_mdio_probe(pdev, priv);
if (err) {
dev_err(&pdev->dev, "failed to probe MII bus\n");
goto out;
}
priv->phy_dev = of_phy_connect(ndev, phy_node, arc_emac_adjust_link, 0,
PHY_INTERFACE_MODE_MII);
if (!priv->phy_dev) {
dev_err(&pdev->dev, "of_phy_connect() failed\n");
err = -ENODEV;
goto out;
}
dev_info(&pdev->dev, "connected to %s phy with id 0x%x\n",
priv->phy_dev->drv->name, priv->phy_dev->phy_id);
netif_napi_add(ndev, &priv->napi, arc_emac_poll, ARC_EMAC_NAPI_WEIGHT);
err = register_netdev(ndev);
if (err) {
netif_napi_del(&priv->napi);
dev_err(&pdev->dev, "failed to register network device\n");
goto out;
}
return 0;
out:
free_netdev(ndev);
return err;
}
static int bcmgenet_mii_probe(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
struct device_node *dn = priv->pdev->dev.of_node;
struct phy_device *phydev;
unsigned int phy_flags;
int ret;
if (priv->phydev) {
pr_info("PHY already attached\n");
return 0;
}
/* In the case of a fixed PHY, the DT node associated
* to the PHY is the Ethernet MAC DT node.
*/
if (of_phy_is_fixed_link(dn)) {
ret = of_phy_register_fixed_link(dn);
if (ret)
return ret;
priv->phy_dn = dn;
}
phydev = of_phy_connect(dev, priv->phy_dn, bcmgenet_mii_setup, 0,
priv->phy_interface);
if (!phydev) {
pr_err("could not attach to PHY\n");
return -ENODEV;
}
priv->old_link = -1;
priv->old_duplex = -1;
priv->old_pause = -1;
priv->phydev = phydev;
/* Configure port multiplexer based on what the probed PHY device since
* reading the 'max-speed' property determines the maximum supported
* PHY speed which is needed for bcmgenet_mii_config() to configure
* things appropriately.
*/
ret = bcmgenet_mii_config(dev);
if (ret) {
phy_disconnect(priv->phydev);
return ret;
}
phy_flags = PHY_BRCM_100MBPS_WAR;
/* workarounds are only needed for 100Mpbs PHYs, and
* never on GENET V1 hardware
*/
if ((phydev->supported & PHY_GBIT_FEATURES) || GENET_IS_V1(priv))
phy_flags = 0;
phydev->dev_flags |= phy_flags;
phydev->advertising = phydev->supported;
/* The internal PHY has its link interrupts routed to the
* Ethernet MAC ISRs
*/
if (phy_is_internal(priv->phydev))
priv->mii_bus->irq[phydev->addr] = PHY_IGNORE_INTERRUPT;
else
priv->mii_bus->irq[phydev->addr] = PHY_POLL;
pr_info("attached PHY at address %d [%s]\n",
phydev->addr, phydev->drv->name);
return 0;
}