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net: pxa168_eth: add device tree support

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Add the device tree support to the pxa168_eth driver.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Antoine Ténart 2014-09-30 16:28:08 +02:00 committed by David S. Miller
parent 307f65657d
commit 43d3ddf87a
1 changed files with 47 additions and 23 deletions
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70
drivers/net/ethernet/marvell/pxa168_eth.c
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@ -193,6 +193,7 @@ struct tx_desc {
struct pxa168_eth_private {
int port_num; /* User Ethernet port number */
int phy_addr;
int rx_resource_err; /* Rx ring resource error flag */
@ -1360,24 +1361,25 @@ static struct phy_device *phy_scan(struct pxa168_eth_private *pep, int phy_addr)
return phydev;
}
static void phy_init(struct pxa168_eth_private *pep, int speed, int duplex)
static void phy_init(struct pxa168_eth_private *pep)
{
struct phy_device *phy = pep->phy;
phy_attach(pep->dev, dev_name(&phy->dev), PHY_INTERFACE_MODE_MII);
if (speed == 0) {
if (pep->pd && pep->pd->speed != 0) {
phy->autoneg = AUTONEG_DISABLE;
phy->advertising = 0;
phy->speed = pep->pd->speed;
phy->duplex = pep->pd->duplex;
} else {
phy->autoneg = AUTONEG_ENABLE;
phy->speed = 0;
phy->duplex = 0;
phy->supported &= PHY_BASIC_FEATURES;
phy->advertising = phy->supported | ADVERTISED_Autoneg;
} else {
phy->autoneg = AUTONEG_DISABLE;
phy->advertising = 0;
phy->speed = speed;
phy->duplex = duplex;
}
phy_start_aneg(phy);
}
@ -1385,11 +1387,13 @@ static int ethernet_phy_setup(struct net_device *dev)
{
struct pxa168_eth_private *pep = netdev_priv(dev);
if (pep->pd->init)
if (pep->pd && pep->pd->init)
pep->pd->init();
pep->phy = phy_scan(pep, pep->pd->phy_addr & 0x1f);
pep->phy = phy_scan(pep, pep->phy_addr & 0x1f);
if (pep->phy != NULL)
phy_init(pep, pep->pd->speed, pep->pd->duplex);
phy_init(pep);
update_hash_table_mac_address(pep, NULL, dev->dev_addr);
return 0;
@ -1449,16 +1453,17 @@ static int pxa168_eth_probe(struct platform_device *pdev)
struct net_device *dev = NULL;
struct resource *res;
struct clk *clk;
struct device_node *np;
int err;
printk(KERN_NOTICE "PXA168 10/100 Ethernet Driver\n");
clk = clk_get(&pdev->dev, "MFUCLK");
clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "Fast Ethernet failed to get clock\n");
return -ENODEV;
}
clk_enable(clk);
clk_prepare_enable(clk);
dev = alloc_etherdev(sizeof(struct pxa168_eth_private));
if (!dev) {
@ -1475,8 +1480,8 @@ static int pxa168_eth_probe(struct platform_device *pdev)
err = -ENODEV;
goto err_netdev;
}
pep->base = ioremap(res->start, resource_size(res));
if (pep->base == NULL) {
pep->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pep->base)) {
err = -ENOMEM;
goto err_netdev;
}
@ -1493,16 +1498,28 @@ static int pxa168_eth_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "Using random mac address\n");
eth_hw_addr_random(dev);
pep->pd = dev_get_platdata(&pdev->dev);
pep->rx_ring_size = NUM_RX_DESCS;
if (pep->pd->rx_queue_size)
pep->rx_ring_size = pep->pd->rx_queue_size;
pep->tx_ring_size = NUM_TX_DESCS;
if (pep->pd->tx_queue_size)
pep->tx_ring_size = pep->pd->tx_queue_size;
pep->port_num = pep->pd->port_number;
pep->pd = dev_get_platdata(&pdev->dev);
if (pep->pd) {
if (pep->pd->rx_queue_size)
pep->rx_ring_size = pep->pd->rx_queue_size;
if (pep->pd->tx_queue_size)
pep->tx_ring_size = pep->pd->tx_queue_size;
pep->port_num = pep->pd->port_number;
pep->phy_addr = pep->pd->phy_addr;
} else if (pdev->dev.of_node) {
of_property_read_u32(pdev->dev.of_node, "port-id",
&pep->port_num);
np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
if (np)
of_property_read_u32(np, "reg", &pep->phy_addr);
}
/* Hardware supports only 3 ports */
BUG_ON(pep->port_num > 2);
netif_napi_add(dev, &pep->napi, pxa168_rx_poll, pep->rx_ring_size);
@ -1603,6 +1620,12 @@ static int pxa168_eth_suspend(struct platform_device *pdev, pm_message_t state)
#define pxa168_eth_suspend NULL
#endif
static const struct of_device_id pxa168_eth_of_match[] = {
{ .compatible = "marvell,pxa168-eth" },
{ },
};
MODULE_DEVICE_TABLE(of, pxa168_eth_of_match);
static struct platform_driver pxa168_eth_driver = {
.probe = pxa168_eth_probe,
.remove = pxa168_eth_remove,
@ -1610,8 +1633,9 @@ static struct platform_driver pxa168_eth_driver = {
.resume = pxa168_eth_resume,
.suspend = pxa168_eth_suspend,
.driver = {
.name = DRIVER_NAME,
},
.name = DRIVER_NAME,
.of_match_table = of_match_ptr(pxa168_eth_of_match),
},
};
module_platform_driver(pxa168_eth_driver);