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authorGabor Juhos <juhosg@openwrt.org>2012-02-15 06:47:12 +0000
committerGabor Juhos <juhosg@openwrt.org>2012-02-15 06:47:12 +0000
commitdcb13d40980be316858dcb1a8f1bf5b196019e82 (patch)
treec8016d4ff730717031f10789f7c6cb5ca7edb000 /target/linux/ramips/files/drivers/net
parent214c2e57fd3248e978a538a8c05d977cf90debe5 (diff)
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ramips: raeth: add PHYLIB support
SVN-Revision: 30547
Diffstat (limited to 'target/linux/ramips/files/drivers/net')
-rw-r--r--target/linux/ramips/files/drivers/net/ramips.c223
-rw-r--r--target/linux/ramips/files/drivers/net/ramips_eth.h5
2 files changed, 220 insertions, 8 deletions
diff --git a/target/linux/ramips/files/drivers/net/ramips.c b/target/linux/ramips/files/drivers/net/ramips.c
index e211f4777d..4a3f4c3b87 100644
--- a/target/linux/ramips/files/drivers/net/ramips.c
+++ b/target/linux/ramips/files/drivers/net/ramips.c
@@ -92,10 +92,31 @@ ramips_hw_set_macaddr(unsigned char *mac)
#define RAMIPS_MDIO_RETRY 1000
-static void
-ramips_setup_mdio_cfg(struct raeth_priv *re)
+static unsigned char *ramips_speed_str(struct raeth_priv *re)
{
- unsigned int mdio_cfg;
+ switch (re->speed) {
+ case SPEED_1000:
+ return "1000";
+ case SPEED_100:
+ return "100";
+ case SPEED_10:
+ return "10";
+ }
+
+ return "?";
+}
+
+static void ramips_link_adjust(struct raeth_priv *re)
+{
+ struct ramips_eth_platform_data *pdata;
+ u32 mdio_cfg;
+
+ pdata = re->parent->platform_data;
+ if (!re->link) {
+ netif_carrier_off(re->netdev);
+ netdev_info(re->netdev, "link down\n");
+ return;
+ }
mdio_cfg = RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
RAMIPS_MDIO_CFG_TX_CLK_SKEW_200 |
@@ -125,7 +146,13 @@ ramips_setup_mdio_cfg(struct raeth_priv *re)
}
ramips_fe_wr(mdio_cfg, RAMIPS_MDIO_CFG);
+
+ netif_carrier_on(re->netdev);
+ netdev_info(re->netdev, "link up (%sMbps/%s duplex)\n",
+ ramips_speed_str(re),
+ (DUPLEX_FULL == re->duplex) ? "Full" : "Half");
}
+
static int
ramips_mdio_wait_ready(struct raeth_priv *re)
{
@@ -246,12 +273,159 @@ ramips_mdio_cleanup(struct raeth_priv *re)
kfree(re->mii_bus);
}
-#else
-static inline void
-ramips_setup_mdio_cfg(struct raeth_priv *re)
+static void
+ramips_phy_link_adjust(struct net_device *dev)
+{
+ struct raeth_priv *re = netdev_priv(dev);
+ struct phy_device *phydev = re->phy_dev;
+ unsigned long flags;
+ int status_change = 0;
+
+ spin_lock_irqsave(&re->phy_lock, flags);
+
+ if (phydev->link)
+ if (re->duplex != phydev->duplex ||
+ re->speed != phydev->speed)
+ status_change = 1;
+
+ if (phydev->link != re->link)
+ status_change = 1;
+
+ re->link = phydev->link;
+ re->duplex = phydev->duplex;
+ re->speed = phydev->speed;
+
+ if (status_change)
+ ramips_link_adjust(re);
+
+ spin_unlock_irqrestore(&re->phy_lock, flags);
+}
+
+static int
+ramips_phy_connect_multi(struct raeth_priv *re)
+{
+ struct net_device *netdev = re->netdev;
+ struct ramips_eth_platform_data *pdata;
+ struct phy_device *phydev = NULL;
+ int phy_addr;
+ int ret = 0;
+
+ pdata = re->parent->platform_data;
+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
+ if (!(pdata->phy_mask & (1 << phy_addr)))
+ continue;
+
+ if (re->mii_bus->phy_map[phy_addr] == NULL)
+ continue;
+
+ RADEBUG("%s: PHY found at %s, uid=%08x\n",
+ netdev->name,
+ dev_name(&re->mii_bus->phy_map[phy_addr]->dev),
+ re->mii_bus->phy_map[phy_addr]->phy_id);
+
+ if (phydev == NULL)
+ phydev = re->mii_bus->phy_map[phy_addr];
+ }
+
+ if (!phydev) {
+ netdev_err(netdev, "no PHY found with phy_mask=%08x\n",
+ pdata->phy_mask);
+ return -ENODEV;
+ }
+
+ re->phy_dev = phy_connect(netdev, dev_name(&phydev->dev),
+ ramips_phy_link_adjust, 0,
+ pdata->phy_if_mode);
+
+ if (IS_ERR(re->phy_dev)) {
+ netdev_err(netdev, "could not connect to PHY at %s\n",
+ dev_name(&phydev->dev));
+ return PTR_ERR(re->phy_dev);
+ }
+
+ phydev->supported &= PHY_GBIT_FEATURES;
+ phydev->advertising = phydev->supported;
+
+ RADEBUG("%s: connected to PHY at %s [uid=%08x, driver=%s]\n",
+ netdev->name, dev_name(&phydev->dev),
+ phydev->phy_id, phydev->drv->name);
+
+ re->link = 0;
+ re->speed = 0;
+ re->duplex = -1;
+ re->rx_fc = 0;
+ re->tx_fc = 0;
+
+ return ret;
+}
+
+static int
+ramips_phy_connect_fixed(struct raeth_priv *re)
+{
+ struct ramips_eth_platform_data *pdata;
+
+ pdata = re->parent->platform_data;
+ switch (pdata->speed) {
+ case SPEED_10:
+ case SPEED_100:
+ case SPEED_1000:
+ break;
+ default:
+ netdev_err(re->netdev, "invalid speed specified\n");
+ return -EINVAL;
+ }
+
+ RADEBUG("%s: using fixed link parameters\n", re->netdev->name);
+
+ re->speed = pdata->speed;
+ re->duplex = pdata->duplex;
+ re->tx_fc = pdata->tx_fc;
+ re->rx_fc = pdata->tx_fc;
+
+ return 0;
+}
+
+static int
+ramips_phy_connect(struct raeth_priv *re)
{
+ struct ramips_eth_platform_data *pdata;
+
+ pdata = re->parent->platform_data;
+ if (pdata->phy_mask)
+ return ramips_phy_connect_multi(re);
+
+ return ramips_phy_connect_fixed(re);
}
+static void
+ramips_phy_disconnect(struct raeth_priv *re)
+{
+ if (re->phy_dev)
+ phy_disconnect(re->phy_dev);
+}
+
+static void
+ramips_phy_start(struct raeth_priv *re)
+{
+ if (re->phy_dev) {
+ phy_start(re->phy_dev);
+ } else {
+ re->link = 1;
+ ramips_link_adjust(re);
+ }
+}
+
+static void
+ramips_phy_stop(struct raeth_priv *re)
+{
+ if (re->phy_dev) {
+ phy_stop(re->phy_dev);
+ } else {
+ re->link = 0;
+ ramips_link_adjust(re);
+ }
+}
+#else
static inline int
ramips_mdio_init(struct raeth_priv *re)
{
@@ -262,6 +436,27 @@ static inline void
ramips_mdio_cleanup(struct raeth_priv *re)
{
}
+
+static inline int
+ramips_phy_connect(struct raeth_priv *re)
+{
+ return 0;
+}
+
+static inline void
+ramips_phy_disconnect(struct raeth_priv *re)
+{
+}
+
+static inline void
+ramips_phy_start(struct raeth_priv *re)
+{
+}
+
+static inline void
+ramips_phy_stop(struct raeth_priv *re)
+{
+}
#endif /* CONFIG_RALINK_RT288X || CONFIG_RALINK_RT3883 */
static void
@@ -546,7 +741,7 @@ ramips_eth_open(struct net_device *dev)
(unsigned long)dev);
tasklet_init(&priv->rx_tasklet, ramips_eth_rx_hw, (unsigned long)dev);
- ramips_setup_mdio_cfg(priv);
+ ramips_phy_start(priv);
ramips_fe_wr(RAMIPS_DELAY_INIT, RAMIPS_DLY_INT_CFG);
ramips_fe_wr(RAMIPS_TX_DLY_INT | RAMIPS_RX_DLY_INT, RAMIPS_FE_INT_ENABLE);
@@ -580,6 +775,7 @@ ramips_eth_stop(struct net_device *dev)
/* disable all interrupts in the hw */
ramips_fe_wr(0, RAMIPS_FE_INT_ENABLE);
+ ramips_phy_stop(priv);
free_irq(dev->irq, dev);
netif_stop_queue(dev);
tasklet_kill(&priv->tx_housekeeping_tasklet);
@@ -604,8 +800,20 @@ ramips_eth_probe(struct net_device *dev)
dev->mtu = 1500;
dev->watchdog_timeo = TX_TIMEOUT;
spin_lock_init(&priv->page_lock);
+ spin_lock_init(&priv->phy_lock);
err = ramips_mdio_init(priv);
+ if (err)
+ return err;
+
+ err = ramips_phy_connect(priv);
+ if (err)
+ goto err_mdio_cleanup;
+
+ return 0;
+
+err_mdio_cleanup:
+ ramips_mdio_cleanup(priv);
return err;
}
@@ -614,6 +822,7 @@ ramips_eth_uninit(struct net_device *dev)
{
struct raeth_priv *re = netdev_priv(dev);
+ ramips_phy_disconnect(re);
ramips_mdio_cleanup(re);
}
diff --git a/target/linux/ramips/files/drivers/net/ramips_eth.h b/target/linux/ramips/files/drivers/net/ramips_eth.h
index 4927f2a211..a74732d841 100644
--- a/target/linux/ramips/files/drivers/net/ramips_eth.h
+++ b/target/linux/ramips/files/drivers/net/ramips_eth.h
@@ -229,10 +229,11 @@ struct raeth_priv
unsigned int skb_free_idx;
spinlock_t page_lock;
- struct net_device *netdev;
+ struct net_device *netdev;
struct device *parent;
struct ramips_eth_platform_data *plat;
+ int link;
int speed;
int duplex;
int tx_fc;
@@ -240,6 +241,8 @@ struct raeth_priv
struct mii_bus *mii_bus;
int mii_irq[PHY_MAX_ADDR];
+ struct phy_device *phy_dev;
+ spinlock_t phy_lock;
};
#endif /* RAMIPS_ETH_H */