lkml.org 
[lkml]   [2014]   [May]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5/9] tlan: Restart autonegotiation on link loss
Date
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 <linux@rainbow-software.org>
---
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;
+ }
}
}

--
Ondrej Zary


\
 
 \ /
  Last update: 2014-05-28 00:21    [W:0.101 / U:0.372 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site