[package] base-files, ppp: fix interface shutdown
[openwrt.git] / target / linux / generic-2.6 / files / drivers / net / phy / ar8216.c
index f629058..4ae61da 100644 (file)
 #include <linux/etherdevice.h>
 #include "ar8216.h"
 
+/* size of the vlan table */
+#define AR8X16_MAX_VLANS       128
+#define AR8X16_PROBE_RETRIES   10
 
 struct ar8216_priv {
-       int (*hardstart)(struct sk_buff *skb, struct net_device *dev);
-
        struct switch_dev dev;
        struct phy_device *phy;
        u32 (*read)(struct ar8216_priv *priv, int reg);
        void (*write)(struct ar8216_priv *priv, int reg, u32 val);
+       const struct net_device_ops *ndo_old;
+       struct net_device_ops ndo;
+       struct mutex reg_mutex;
+       int chip;
 
        /* all fields below are cleared on reset */
        bool vlan;
-       u8 vlan_id[AR8216_NUM_VLANS];
-       u8 vlan_table[AR8216_NUM_VLANS];
+       u16 vlan_id[AR8X16_MAX_VLANS];
+       u8 vlan_table[AR8X16_MAX_VLANS];
        u8 vlan_tagged;
        u16 pvid[AR8216_NUM_PORTS];
 };
@@ -110,6 +115,47 @@ ar8216_rmw(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
        return v;
 }
 
+static inline int
+ar8216_id_chip(struct ar8216_priv *priv)
+{
+       u32 val;
+       u16 id;
+       int i;
+
+       val = ar8216_mii_read(priv, AR8216_REG_CTRL);
+       if (val == ~0)
+               return UNKNOWN;
+
+       id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
+       for (i = 0; i < AR8X16_PROBE_RETRIES; i++) {
+               u16 t;
+
+               val = ar8216_mii_read(priv, AR8216_REG_CTRL);
+               if (val == ~0)
+                       return UNKNOWN;
+
+               t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
+               if (t != id)
+                       return UNKNOWN;
+       }
+
+       switch (id) {
+       case 0x0101:
+               return AR8216;
+       case 0x1001:
+               return AR8316;
+       default:
+               printk(KERN_DEBUG
+                       "ar8216: Unknown Atheros device [ver=%d, rev=%d, phy_id=%04x%04x]\n",
+                       (int)(id >> AR8216_CTRL_VERSION_S),
+                       (int)(id & AR8216_CTRL_REVISION),
+                       priv->phy->bus->read(priv->phy->bus, priv->phy->addr, 2),
+                       priv->phy->bus->read(priv->phy->bus, priv->phy->addr, 3));
+
+               return UNKNOWN;
+       }
+}
+
 static int
 ar8216_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
                 struct switch_val *val)
@@ -133,6 +179,12 @@ static int
 ar8216_set_pvid(struct switch_dev *dev, int port, int vlan)
 {
        struct ar8216_priv *priv = to_ar8216(dev);
+
+       /* make sure no invalid PVIDs get set */
+
+       if (vlan >= dev->vlans)
+               return -EINVAL;
+
        priv->pvid[port] = vlan;
        return 0;
 }
@@ -186,7 +238,7 @@ ar8216_mangle_tx(struct sk_buff *skb, struct net_device *dev)
        buf[1] = 0x80;
 
 send:
-       return priv->hardstart(skb, dev);
+       return priv->ndo_old->ndo_start_xmit(skb, dev);
 
 error:
        dev_kfree_skb_any(skb);
@@ -228,7 +280,7 @@ ar8216_mangle_rx(struct sk_buff *skb, int napi)
                goto recv;
 
        /* lookup port vid from local table, the switch passes an invalid vlan id */
-       vlan = priv->pvid[port];
+       vlan = priv->vlan_id[priv->pvid[port]];
 
        buf[14 + 2] &= 0xf0;
        buf[14 + 2] |= vlan >> 8;
@@ -245,7 +297,7 @@ recv:
 error:
        /* no vlan? eat the packet! */
        dev_kfree_skb_any(skb);
-       return 0;
+       return NET_RX_DROP;
 }
 
 static int
@@ -264,7 +316,7 @@ ar8216_netif_receive_skb(struct sk_buff *skb)
 static struct switch_attr ar8216_globals[] = {
        {
                .type = SWITCH_TYPE_INT,
-               .name = "vlan",
+               .name = "enable_vlan",
                .description = "Enable VLAN mode",
                .set = ar8216_set_vlan,
                .get = ar8216_get_vlan,
@@ -282,7 +334,7 @@ static struct switch_attr ar8216_vlan[] = {
                .description = "VLAN ID",
                .set = ar8216_set_vid,
                .get = ar8216_get_vid,
-               .max = 4095,
+               .max = 4094,
        },
 };
 
@@ -330,7 +382,7 @@ ar8216_set_ports(struct switch_dev *dev, struct switch_val *val)
 
                        /* make sure that an untagged port does not
                         * appear in other vlans */
-                       for (j = 0; j < AR8216_NUM_VLANS; j++) {
+                       for (j = 0; j < AR8X16_MAX_VLANS; j++) {
                                if (j == val->port_vlan)
                                        continue;
                                priv->vlan_table[j] &= ~(1 << p->id);
@@ -377,6 +429,7 @@ ar8216_hw_apply(struct switch_dev *dev)
        u8 portmask[AR8216_NUM_PORTS];
        int i, j;
 
+       mutex_lock(&priv->reg_mutex);
        /* flush all vlan translation unit entries */
        ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
 
@@ -384,7 +437,7 @@ ar8216_hw_apply(struct switch_dev *dev)
        if (priv->vlan) {
                /* calculate the port destination masks and load vlans
                 * into the vlan translation unit */
-               for (j = 0; j < AR8216_NUM_VLANS; j++) {
+               for (j = 0; j < AR8X16_MAX_VLANS; j++) {
                        u8 vp = priv->vlan_table[j];
 
                        if (!vp)
@@ -396,9 +449,6 @@ ar8216_hw_apply(struct switch_dev *dev)
                                        portmask[i] |= vp & ~mask;
                        }
 
-                       if (!priv->vlan_table[j])
-                               continue;
-
                        ar8216_vtu_op(priv,
                                AR8216_VTU_OP_LOAD |
                                (priv->vlan_id[j] << AR8216_VTU_VID_S),
@@ -432,14 +482,19 @@ ar8216_hw_apply(struct switch_dev *dev)
                } else {
                        egress = AR8216_OUT_STRIP_VLAN;
                }
-               ingress = AR8216_IN_SECURE;
+               if (priv->vlan) {
+                       ingress = AR8216_IN_SECURE;
+               } else {
+                       ingress = AR8216_IN_PORT_ONLY;
+               }
 
                ar8216_rmw(priv, AR8216_REG_PORT_CTRL(i),
                        AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
                        AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
                        AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
                        AR8216_PORT_CTRL_LEARN |
-                         (i == AR8216_PORT_CPU ? AR8216_PORT_CTRL_HEADER : 0) |
+                         (priv->vlan && i == AR8216_PORT_CPU && (priv->chip == AR8216) ?
+                          AR8216_PORT_CTRL_HEADER : 0) |
                          (egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
                          (AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
 
@@ -450,7 +505,73 @@ ar8216_hw_apply(struct switch_dev *dev)
                          (ingress << AR8216_PORT_VLAN_MODE_S) |
                          (pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
        }
+       mutex_unlock(&priv->reg_mutex);
+       return 0;
+}
+
+static int
+ar8316_hw_init(struct ar8216_priv *priv) {
+       static int initialized;
+       int i;
+       u32 val;
+       struct mii_bus *bus;
+
+       if (initialized)
+               return 0;
+
+       val = priv->read(priv, 0x8);
+
+       if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
+               /* value taken from Ubiquiti RouterStation Pro */
+               if (val == 0x81461bea) {
+                       /* switch already intialized by bootloader */
+                       initialized = true;
+                       return 0;
+               }
+               priv->write(priv, 0x8, 0x81461bea);
+       } else if (priv->phy->interface == PHY_INTERFACE_MODE_GMII) {
+               /* value taken from AVM Fritz!Box 7390 sources */
+               if (val == 0x010e5b71) {
+                       /* switch already initialized by bootloader */
+                       initialized = true;
+                       return 0;
+               }
+               priv->write(priv, 0x8, 0x010e5b71);
+       } else {
+               /* no known value for phy interface */
+               printk(KERN_ERR "ar8316: unsupported mii mode: %d.\n",
+                       priv->phy->interface);
+               return -EINVAL;
+       }
+
+       /* standard atheros magic */
+       priv->write(priv, 0x38, 0xc000050e);
 
+       /* Initialize the ports */
+       bus = priv->phy->bus;
+       for (i = 0; i < 5; i++) {
+               if ((i == 4) &&
+                       priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
+                       /* work around for phy4 rgmii mode */
+                       bus->write(bus, i, MII_ATH_DBG_ADDR, 0x12);
+                       bus->write(bus, i, MII_ATH_DBG_DATA, 0x480c);
+                       /* rx delay */
+                       bus->write(bus, i, MII_ATH_DBG_ADDR, 0x0);
+                       bus->write(bus, i, MII_ATH_DBG_DATA, 0x824e);
+                       /* tx delay */
+                       bus->write(bus, i, MII_ATH_DBG_ADDR, 0x5);
+                       bus->write(bus, i, MII_ATH_DBG_DATA, 0x3d47);
+                       msleep(1000);
+               }
+
+               /* initialize the port itself */
+               bus->write(bus, i, MII_ADVERTISE,
+                       ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+               bus->write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
+               bus->write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
+               msleep(1000);
+       }
+       initialized = true;
        return 0;
 }
 
@@ -460,9 +581,10 @@ ar8216_reset_switch(struct switch_dev *dev)
        struct ar8216_priv *priv = to_ar8216(dev);
        int i;
 
+       mutex_lock(&priv->reg_mutex);
        memset(&priv->vlan, 0, sizeof(struct ar8216_priv) -
                offsetof(struct ar8216_priv, vlan));
-       for (i = 0; i < AR8216_NUM_VLANS; i++) {
+       for (i = 0; i < AR8X16_MAX_VLANS; i++) {
                priv->vlan_id[i] = i;
        }
        for (i = 0; i < AR8216_NUM_PORTS; i++) {
@@ -477,9 +599,12 @@ ar8216_reset_switch(struct switch_dev *dev)
                if (i == AR8216_PORT_CPU) {
                        priv->write(priv, AR8216_REG_PORT_STATUS(i),
                                AR8216_PORT_STATUS_LINK_UP |
-                               AR8216_PORT_STATUS_SPEED |
+                               ((priv->chip == AR8316) ?
+                                       AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) |
                                AR8216_PORT_STATUS_TXMAC |
                                AR8216_PORT_STATUS_RXMAC |
+                               ((priv->chip == AR8316) ? AR8216_PORT_STATUS_RXFLOW : 0) |
+                               ((priv->chip == AR8316) ? AR8216_PORT_STATUS_TXFLOW : 0) |
                                AR8216_PORT_STATUS_DUPLEX);
                } else {
                        priv->write(priv, AR8216_REG_PORT_STATUS(i),
@@ -488,6 +613,21 @@ ar8216_reset_switch(struct switch_dev *dev)
        }
        /* XXX: undocumented magic from atheros, required! */
        priv->write(priv, 0x38, 0xc000050e);
+
+       if (priv->chip == AR8216) {
+               ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
+                       AR8216_GCTRL_MTU, 1518 + 8 + 2);
+       } else if (priv->chip == AR8316) {
+               /* enable jumbo frames */
+               ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
+                       AR8316_GCTRL_MTU, 9018 + 8 + 2);
+       }
+
+       if (priv->chip == AR8316) {
+               /* enable cpu port to receive multicast and broadcast frames */
+               priv->write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f);
+       }
+       mutex_unlock(&priv->reg_mutex);
        return ar8216_hw_apply(dev);
 }
 
@@ -498,34 +638,76 @@ ar8216_config_init(struct phy_device *pdev)
        struct net_device *dev = pdev->attached_dev;
        int ret;
 
-       printk("%s: AR8216 PHY driver attached.\n", pdev->attached_dev->name);
-       pdev->supported = ADVERTISED_100baseT_Full;
-       pdev->advertising = ADVERTISED_100baseT_Full;
-
        priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
        if (priv == NULL)
                return -ENOMEM;
 
        priv->phy = pdev;
+
+       priv->chip = ar8216_id_chip(priv);
+
+       if (pdev->addr == 0)
+               printk(KERN_INFO "%s: AR%d switch driver attached.\n",
+                       pdev->attached_dev->name, priv->chip);
+
+
+       if (pdev->addr != 0) {
+               if (priv->chip == AR8316) {
+                       pdev->supported |= SUPPORTED_1000baseT_Full;
+                       pdev->advertising |= ADVERTISED_1000baseT_Full;
+               }
+               kfree(priv);
+               return 0;
+       }
+
+       pdev->supported = priv->chip == AR8316 ?
+               SUPPORTED_1000baseT_Full : SUPPORTED_100baseT_Full;
+       pdev->advertising = pdev->supported;
+
+       mutex_init(&priv->reg_mutex);
        priv->read = ar8216_mii_read;
        priv->write = ar8216_mii_write;
        memcpy(&priv->dev, &athdev, sizeof(struct switch_dev));
        pdev->priv = priv;
+
+       if (priv->chip == AR8316) {
+               priv->dev.name = "Atheros AR8316";
+               priv->dev.vlans = AR8X16_MAX_VLANS;
+               /* port 5 connected to the other mac, therefore unusable */
+               priv->dev.ports = (AR8216_NUM_PORTS - 1);
+       }
+
        if ((ret = register_switch(&priv->dev, pdev->attached_dev)) < 0) {
                kfree(priv);
                goto done;
        }
 
+       if (priv->chip == AR8316) {
+               ret = ar8316_hw_init(priv);
+               if (ret) {
+                       kfree(priv);
+                       goto done;
+               }
+       }
+
        ret = ar8216_reset_switch(&priv->dev);
-       if (ret)
+       if (ret) {
+               kfree(priv);
                goto done;
+       }
 
        dev->phy_ptr = priv;
-       pdev->pkt_align = 2;
-       priv->hardstart = dev->hard_start_xmit;
-       pdev->netif_receive_skb = ar8216_netif_receive_skb;
-       pdev->netif_rx = ar8216_netif_rx;
-       dev->hard_start_xmit = ar8216_mangle_tx;
+
+       /* VID fixup only needed on ar8216 */
+       if (pdev->addr == 0 && priv->chip == AR8216) {
+               pdev->pkt_align = 2;
+               pdev->netif_receive_skb = ar8216_netif_receive_skb;
+               pdev->netif_rx = ar8216_netif_rx;
+               priv->ndo_old = dev->netdev_ops;
+               memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops));
+               priv->ndo.ndo_start_xmit = ar8216_mangle_tx;
+               dev->netdev_ops = &priv->ndo;
+       }
 
 done:
        return ret;
@@ -535,39 +717,50 @@ static int
 ar8216_read_status(struct phy_device *phydev)
 {
        struct ar8216_priv *priv = phydev->priv;
+       int ret;
+       if (phydev->addr != 0) {
+               return genphy_read_status(phydev);
+       }
 
-       phydev->speed = SPEED_100;
+       phydev->speed = priv->chip == AR8316 ? SPEED_1000 : SPEED_100;
        phydev->duplex = DUPLEX_FULL;
-       phydev->state = PHY_UP;
+       phydev->link = 1;
 
        /* flush the address translation unit */
-       if (ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0))
-               return -ETIMEDOUT;
+       mutex_lock(&priv->reg_mutex);
+       ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0);
 
-       priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
+       if (!ret)
+               priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
+       else
+               ret = -ETIMEDOUT;
+       mutex_unlock(&priv->reg_mutex);
 
-       return 0;
+       phydev->state = PHY_RUNNING;
+       netif_carrier_on(phydev->attached_dev);
+       phydev->adjust_link(phydev->attached_dev);
+
+       return ret;
 }
 
 static int
 ar8216_config_aneg(struct phy_device *phydev)
 {
-       return 0;
+       if (phydev->addr == 0)
+               return 0;
+
+       return genphy_config_aneg(phydev);
 }
 
 static int
 ar8216_probe(struct phy_device *pdev)
 {
        struct ar8216_priv priv;
-
-       u8 id, rev;
-       u32 val;
+       u16 chip;
 
        priv.phy = pdev;
-       val = ar8216_mii_read(&priv, AR8216_REG_CTRL);
-       rev = val & 0xff;
-       id = (val >> 8) & 0xff;
-       if ((id != 1) || (rev != 1))
+       chip = ar8216_id_chip(&priv);
+       if (chip == UNKNOWN)
                return -ENODEV;
 
        return 0;
@@ -582,9 +775,10 @@ ar8216_remove(struct phy_device *pdev)
        if (!priv)
                return;
 
-       if (priv->hardstart && dev)
-               dev->hard_start_xmit = priv->hardstart;
-       unregister_switch(&priv->dev);
+       if (priv->ndo_old && dev)
+               dev->netdev_ops = priv->ndo_old;
+       if (pdev->addr == 0)
+               unregister_switch(&priv->dev);
        kfree(priv);
 }
 
@@ -615,7 +809,9 @@ static struct switch_dev athdev = {
 };
 
 static struct phy_driver ar8216_driver = {
-       .name           = "Atheros AR8216",
+       .phy_id         = 0x004d0000,
+       .name           = "Atheros AR8216/AR8316",
+       .phy_id_mask    = 0xffff0000,
        .features       = PHY_BASIC_FEATURES,
        .probe          = ar8216_probe,
        .remove         = ar8216_remove,
This page took 0.045415 seconds and 4 git commands to generate.