diff options
| -rw-r--r-- | target/linux/generic/files/drivers/net/phy/ar8216.c | 93 |
1 files changed, 61 insertions, 32 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c index 2f48d7bd56..587f41fc02 100644 --- a/target/linux/generic/files/drivers/net/phy/ar8216.c +++ b/target/linux/generic/files/drivers/net/phy/ar8216.c @@ -44,6 +44,8 @@ struct ar8216_priv { struct net_device_ops ndo; struct mutex reg_mutex; int chip; + bool initialized; + bool port4_phy; /* all fields below are cleared on reset */ bool vlan; @@ -511,32 +513,24 @@ ar8216_hw_apply(struct switch_dev *dev) static int ar8316_hw_init(struct ar8216_priv *priv) { - static int initialized; int i; - u32 val; + u32 val, newval; 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; + if (priv->port4_phy) { + /* value taken from Ubiquiti RouterStation Pro */ + newval = 0x81461bea; + printk(KERN_INFO "ar8316: Using port 4 as PHY\n"); + } else { + newval = 0x01261be2; + printk(KERN_INFO "ar8316: Using port 4 as switch port\n"); } - 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); + newval = 0x010e5b71; } else { /* no known value for phy interface */ printk(KERN_ERR "ar8316: unsupported mii mode: %d.\n", @@ -544,14 +538,19 @@ ar8316_hw_init(struct ar8216_priv *priv) { return -EINVAL; } + if (val == newval) + goto out; + + priv->write(priv, 0x8, newval); + /* 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) { + if ((i == 4) && priv->port4_phy && + 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); @@ -571,7 +570,9 @@ ar8316_hw_init(struct ar8216_priv *priv) { bus->write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE); msleep(1000); } - initialized = true; + +out: + priv->initialized = true; return 0; } @@ -656,33 +657,58 @@ static const struct switch_dev_ops ar8216_ops = { static int ar8216_config_init(struct phy_device *pdev) { - struct ar8216_priv *priv; + struct ar8216_priv *priv = pdev->priv; struct net_device *dev = pdev->attached_dev; struct switch_dev *swdev; int ret; - priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL); - if (priv == NULL) - return -ENOMEM; + if (!priv) { + 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; + + /* check if we're attaching to the switch twice */ + pdev = pdev->bus->phy_map[0]; + if (!pdev) { + kfree(priv); + return 0; + } + + /* switch device has not been initialized, reuse priv */ + if (!pdev->priv) { + priv->port4_phy = true; + pdev->priv = priv; + return 0; + } + + kfree(priv); + + /* switch device has been initialized, reinit */ + priv = pdev->priv; + priv->dev.ports = (AR8216_NUM_PORTS - 1); + priv->initialized = false; + priv->port4_phy = true; + ar8316_hw_init(priv); + return 0; } + kfree(priv); return 0; } + printk(KERN_INFO "%s: AR%d switch driver attached.\n", + pdev->attached_dev->name, priv->chip); + pdev->supported = priv->chip == AR8316 ? SUPPORTED_1000baseT_Full : SUPPORTED_100baseT_Full; pdev->advertising = pdev->supported; @@ -696,16 +722,19 @@ ar8216_config_init(struct phy_device *pdev) swdev = &priv->dev; swdev->cpu_port = AR8216_PORT_CPU; swdev->ops = &ar8216_ops; + swdev->ports = AR8216_NUM_PORTS; if (priv->chip == AR8316) { swdev->name = "Atheros AR8316"; swdev->vlans = AR8X16_MAX_VLANS; - /* port 5 connected to the other mac, therefore unusable */ - swdev->ports = (AR8216_NUM_PORTS - 1); + + if (priv->port4_phy) { + /* port 5 connected to the other mac, therefore unusable */ + swdev->ports = (AR8216_NUM_PORTS - 1); + } } else { swdev->name = "Atheros AR8216"; swdev->vlans = AR8216_NUM_VLANS; - swdev->ports = AR8216_NUM_PORTS; } if ((ret = register_switch(&priv->dev, pdev->attached_dev)) < 0) { |