generic: ar8216: use ar8216_read_port_link to get the CPU port link parameters
[openwrt.git] / target / linux / generic / files / drivers / net / phy / ar8216.c
index 57088a9..2e3a842 100644 (file)
@@ -48,6 +48,8 @@ struct ar8216_priv {
        bool port4_phy;
        char buf[80];
 
+       bool init;
+
        /* all fields below are cleared on reset */
        bool vlan;
        u16 vlan_id[AR8X16_MAX_VLANS];
@@ -75,14 +77,20 @@ static u32
 ar8216_mii_read(struct ar8216_priv *priv, int reg)
 {
        struct phy_device *phy = priv->phy;
+       struct mii_bus *bus = phy->bus;
        u16 r1, r2, page;
        u16 lo, hi;
 
        split_addr((u32) reg, &r1, &r2, &page);
-       mdiobus_write(phy->bus, 0x18, 0, page);
+
+       mutex_lock(&bus->mdio_lock);
+
+       bus->write(bus, 0x18, 0, page);
        msleep(1); /* wait for the page switch to propagate */
-       lo = mdiobus_read(phy->bus, 0x10 | r2, r1);
-       hi = mdiobus_read(phy->bus, 0x10 | r2, r1 + 1);
+       lo = bus->read(bus, 0x10 | r2, r1);
+       hi = bus->read(bus, 0x10 | r2, r1 + 1);
+
+       mutex_unlock(&bus->mdio_lock);
 
        return (hi << 16) | lo;
 }
@@ -91,17 +99,22 @@ static void
 ar8216_mii_write(struct ar8216_priv *priv, int reg, u32 val)
 {
        struct phy_device *phy = priv->phy;
+       struct mii_bus *bus = phy->bus;
        u16 r1, r2, r3;
        u16 lo, hi;
 
        split_addr((u32) reg, &r1, &r2, &r3);
-       mdiobus_write(phy->bus, 0x18, 0, r3);
-       msleep(1); /* wait for the page switch to propagate */
-
        lo = val & 0xffff;
        hi = (u16) (val >> 16);
-       mdiobus_write(phy->bus, 0x10 | r2, r1 + 1, hi);
-       mdiobus_write(phy->bus, 0x10 | r2, r1, lo);
+
+       mutex_lock(&bus->mdio_lock);
+
+       bus->write(bus, 0x18, 0, r3);
+       msleep(1); /* wait for the page switch to propagate */
+       bus->write(bus, 0x10 | r2, r1 + 1, hi);
+       bus->write(bus, 0x10 | r2, r1, lo);
+
+       mutex_unlock(&bus->mdio_lock);
 }
 
 static u32
@@ -161,6 +174,49 @@ ar8216_id_chip(struct ar8216_priv *priv)
        }
 }
 
+static void
+ar8216_read_port_link(struct ar8216_priv *priv, int port,
+                     struct switch_port_link *link)
+{
+       u32 status;
+       u32 speed;
+
+       memset(link, '\0', sizeof(*link));
+
+       status = priv->read(priv, AR8216_REG_PORT_STATUS(port));
+
+       link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO);
+       if (link->aneg) {
+               link->link = !!(status & AR8216_PORT_STATUS_LINK_UP);
+               if (!link->link)
+                       return;
+       } else {
+               link->link = true;
+       }
+
+       link->duplex = !!(status & AR8216_PORT_STATUS_DUPLEX);
+       link->tx_flow = !!(status & AR8216_PORT_STATUS_TXFLOW);
+       link->rx_flow = !!(status & AR8216_PORT_STATUS_RXFLOW);
+
+       speed = (status & AR8216_PORT_STATUS_SPEED) >>
+                AR8216_PORT_STATUS_SPEED_S;
+
+       switch (speed) {
+       case AR8216_PORT_SPEED_10M:
+               link->speed = SWITCH_PORT_SPEED_10;
+               break;
+       case AR8216_PORT_SPEED_100M:
+               link->speed = SWITCH_PORT_SPEED_100;
+               break;
+       case AR8216_PORT_SPEED_1000M:
+               link->speed = SWITCH_PORT_SPEED_1000;
+               break;
+       default:
+               link->speed = SWITCH_PORT_SPEED_UNKNOWN;
+               break;
+       }
+}
+
 static int
 ar8216_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
                 struct switch_val *val)
@@ -220,57 +276,13 @@ ar8216_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
        return 0;
 }
 
-static const char *ar8216_speed_str(unsigned speed)
-{
-       switch (speed) {
-       case AR8216_PORT_SPEED_10M:
-               return "10baseT";
-       case AR8216_PORT_SPEED_100M:
-               return "100baseT";
-       case AR8216_PORT_SPEED_1000M:
-               return "1000baseT";
-       }
-
-       return "unknown";
-}
-
-static int ar8216_port_get_link(struct switch_dev *dev,
-                               const struct switch_attr *attr,
-                               struct switch_val *val)
+static int
+ar8216_get_port_link(struct switch_dev *dev, int port,
+                    struct switch_port_link *link)
 {
        struct ar8216_priv *priv = to_ar8216(dev);
-       u32 len;
-       u32 status;
-       int port;
-
-       port = val->port_vlan;
-
-       memset(priv->buf, '\0', sizeof(priv->buf));
-       status = priv->read(priv, AR8216_REG_PORT_STATUS(port));
-
-       if (status & AR8216_PORT_STATUS_LINK_UP) {
-               len = snprintf(priv->buf, sizeof(priv->buf),
-                               "port:%d link:up speed:%s %s-duplex %s%s%s",
-                               port,
-                               ar8216_speed_str((status &
-                                                 AR8216_PORT_STATUS_SPEED) >>
-                                                AR8216_PORT_STATUS_SPEED_S),
-                               (status & AR8216_PORT_STATUS_DUPLEX) ?
-                                       "full" : "half",
-                               (status & AR8216_PORT_STATUS_TXFLOW) ?
-                                       "txflow ": "",
-                               (status & AR8216_PORT_STATUS_RXFLOW) ?
-                                       "rxflow " : "",
-                               (status & AR8216_PORT_STATUS_LINK_AUTO) ?
-                                       "auto ": "");
-       } else {
-               len = snprintf(priv->buf, sizeof(priv->buf), "port:%d link:down",
-                               port);
-       }
-
-       val->value.s = priv->buf;
-       val->len = len;
 
+       ar8216_read_port_link(priv, port, link);
        return 0;
 }
 
@@ -383,14 +395,6 @@ static struct switch_attr ar8216_globals[] = {
 };
 
 static struct switch_attr ar8216_port[] = {
-       {
-               .type = SWITCH_TYPE_STRING,
-               .name = "link",
-               .description = "Get port link information",
-               .max = 1,
-               .set = NULL,
-               .get = ar8216_port_get_link,
-       },
 };
 
 static struct switch_attr ar8216_vlan[] = {
@@ -550,7 +554,7 @@ ar8216_hw_apply(struct switch_dev *dev)
        ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
 
        memset(portmask, 0, sizeof(portmask));
-       if (priv->vlan) {
+       if (!priv->init) {
                /* calculate the port destination masks and load vlans
                 * into the vlan translation unit */
                for (j = 0; j < AR8X16_MAX_VLANS; j++) {
@@ -630,10 +634,10 @@ ar8236_hw_init(struct ar8216_priv *priv) {
        /* Initialize the PHYs */
        bus = priv->phy->bus;
        for (i = 0; i < 5; i++) {
-               bus->write(bus, i, MII_ADVERTISE,
-                          ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
-                          ADVERTISE_PAUSE_ASYM);
-               bus->write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
+               mdiobus_write(bus, i, MII_ADVERTISE,
+                             ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
+                             ADVERTISE_PAUSE_ASYM);
+               mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
        }
        msleep(1000);
 
@@ -783,6 +787,7 @@ static const struct switch_dev_ops ar8216_ops = {
        .set_vlan_ports = ar8216_set_ports,
        .apply_config = ar8216_hw_apply,
        .reset_switch = ar8216_reset_switch,
+       .get_port_link = ar8216_get_port_link,
 };
 
 static int
@@ -877,6 +882,8 @@ ar8216_config_init(struct phy_device *pdev)
                goto done;
        }
 
+       priv->init = true;
+
        if (priv->chip == AR8316) {
                ret = ar8316_hw_init(priv);
                if (ret) {
@@ -912,6 +919,8 @@ ar8216_config_init(struct phy_device *pdev)
                dev->netdev_ops = &priv->ndo;
        }
 
+       priv->init = false;
+
 done:
        return ret;
 }
@@ -920,14 +929,31 @@ static int
 ar8216_read_status(struct phy_device *phydev)
 {
        struct ar8216_priv *priv = phydev->priv;
+       struct switch_port_link link;
        int ret;
        if (phydev->addr != 0) {
                return genphy_read_status(phydev);
        }
 
-       phydev->speed = priv->chip == AR8316 ? SPEED_1000 : SPEED_100;
-       phydev->duplex = DUPLEX_FULL;
-       phydev->link = 1;
+       ar8216_read_port_link(priv, phydev->addr, &link);
+       phydev->link = !!link.link;
+       if (!phydev->link)
+               return 0;
+
+       switch (link.speed) {
+       case SWITCH_PORT_SPEED_10:
+               phydev->speed = SPEED_10;
+               break;
+       case SWITCH_PORT_SPEED_100:
+               phydev->speed = SPEED_100;
+               break;
+       case SWITCH_PORT_SPEED_1000:
+               phydev->speed = SPEED_1000;
+               break;
+       default:
+               phydev->speed = 0;
+       }
+       phydev->duplex = link.duplex ? DUPLEX_FULL : DUPLEX_HALF;
 
        /* flush the address translation unit */
        mutex_lock(&priv->reg_mutex);
@@ -987,7 +1013,7 @@ ar8216_remove(struct phy_device *pdev)
 
 static struct phy_driver ar8216_driver = {
        .phy_id         = 0x004d0000,
-       .name           = "Atheros AR8216/AR8316/AR8326",
+       .name           = "Atheros AR8216/AR8236/AR8316",
        .phy_id_mask    = 0xffff0000,
        .features       = PHY_BASIC_FEATURES,
        .probe          = ar8216_probe,
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