[PATCH 5/9] tlan: Restart autonegotiation on link loss
From: Ondrej Zary <hidden>
Date: 2014-05-27 21:39:17
Also in:
lkml
Subsystem:
networking drivers, the rest, tlan network driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Samuel Chessman
When link is lost on a card which uses internal PHY for 10 Mbit speeds, restart autonegotiation to allow switching between 10 and 100 Mbps speeds. Signed-off-by: Ondrej Zary <redacted> --- drivers/net/ethernet/ti/tlan.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 31d4a96..1047b3f 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c@@ -2721,6 +2721,7 @@ static void tlan_phy_finish_auto_neg(struct net_device *dev) else if (!(mode & 0x0080) && (mode & 0x0040)) priv->tlan_full_duplex = true; + /* switch to internal PHY for 10 Mbps */ if ((!(mode & 0x0180)) && (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) && (priv->phy_num != 0)) {
@@ -2788,6 +2789,19 @@ static void tlan_phy_monitor(unsigned long data) dev->name); tlan_dio_write8(dev->base_addr, TLAN_LED_REG, 0); netif_carrier_off(dev); + if (priv->adapter->flags & TLAN_ADAPTER_USE_INTERN_10) { + /* power down internal PHY */ + u16 data = MII_GC_PDOWN | MII_GC_LOOPBK + | MII_GC_ISOLATE; + tlan_mii_sync(dev->base_addr); + tlan_mii_write_reg(dev, priv->phy[0], + MII_GEN_CTL, data); + /* set to external PHY */ + priv->phy_num = 1; + /* restart autonegotiation */ + tlan_set_timer(dev, (4*HZ/10), TLAN_TIMER_PHY_PDOWN); + return; + } } }
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Ondrej Zary