diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@st.com> | 2011-10-18 00:01:18 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-19 19:24:16 -0400 |
| commit | 79ee1dc32b945ad71248332f3a3b355332ad3376 (patch) | |
| tree | f37963d7e9ac2a71c87f6e69ab493664b4be0b2d | |
| parent | 903e21e2eea036f6947f523f732e28b33a63ed0f (diff) | |
stmmac: Stop advertising 1000Base capabilties for non GMII iface (V4).
This patch stops advertising 1000Base capablities if GMAC is either
configured for MII or RMII mode and on board there is a GPHY plugged on.
Without this patch if an GBit switch is connected on MII interface,
Ethernet stops working at all.
Discovered as part of
https://bugzilla.stlinux.com/show_bug.cgi?id=14148 triage
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 87a6b2e59e0..ae5debb1f5c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -304,7 +304,7 @@ static int stmmac_init_phy(struct net_device *dev) struct phy_device *phydev; char phy_id[MII_BUS_ID_SIZE + 3]; char bus_id[MII_BUS_ID_SIZE]; - + int interface = priv->plat->interface; priv->oldlink = 0; priv->speed = 0; priv->oldduplex = -1; @@ -314,14 +314,21 @@ static int stmmac_init_phy(struct net_device *dev) priv->plat->phy_addr); pr_debug("stmmac_init_phy: trying to attach to %s\n", phy_id); - phydev = phy_connect(dev, phy_id, &stmmac_adjust_link, 0, - priv->plat->interface); + phydev = phy_connect(dev, phy_id, &stmmac_adjust_link, 0, interface); if (IS_ERR(phydev)) { pr_err("%s: Could not attach to PHY\n", dev->name); return PTR_ERR(phydev); } + /* Stop Advertising 1000BASE Capability if interface is not GMII */ + if ((interface) && ((interface == PHY_INTERFACE_MODE_MII) || + (interface == PHY_INTERFACE_MODE_RMII))) { + phydev->supported &= (PHY_BASIC_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause); + priv->phydev->advertising = priv->phydev->supported; + } + /* * Broken HW is sometimes missing the pull-up resistor on the * MDIO line, which results in reads to non-existent devices returning |