[PATCH] emac: add support for platform-specific unsupported PHY features
This patch adds support to the ibm_emac driver for platform-specific
unsupported PHY features.
The patch attempts to determine the highest speed and duplex when
autonegotiation is unsupported.
Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/ibm_emac/ibm_emac_core.c b/drivers/net/ibm_emac/ibm_emac_core.c
index 0de3bb9..14e9b631 100644
--- a/drivers/net/ibm_emac/ibm_emac_core.c
+++ b/drivers/net/ibm_emac/ibm_emac_core.c
@@ -1875,6 +1875,9 @@
rc = -ENODEV;
goto bail;
}
+
+ /* Disable any PHY features not supported by the platform */
+ ep->phy_mii.def->features &= ~emacdata->phy_feat_exc;
/* Setup initial PHY config & startup aneg */
if (ep->phy_mii.def->ops->init)
@@ -1882,6 +1885,34 @@
netif_carrier_off(ndev);
if (ep->phy_mii.def->features & SUPPORTED_Autoneg)
ep->want_autoneg = 1;
+ else {
+ ep->want_autoneg = 0;
+
+ /* Select highest supported speed/duplex */
+ if (ep->phy_mii.def->features & SUPPORTED_1000baseT_Full) {
+ ep->phy_mii.speed = SPEED_1000;
+ ep->phy_mii.duplex = DUPLEX_FULL;
+ } else if (ep->phy_mii.def->features &
+ SUPPORTED_1000baseT_Half) {
+ ep->phy_mii.speed = SPEED_1000;
+ ep->phy_mii.duplex = DUPLEX_HALF;
+ } else if (ep->phy_mii.def->features &
+ SUPPORTED_100baseT_Full) {
+ ep->phy_mii.speed = SPEED_100;
+ ep->phy_mii.duplex = DUPLEX_FULL;
+ } else if (ep->phy_mii.def->features &
+ SUPPORTED_100baseT_Half) {
+ ep->phy_mii.speed = SPEED_100;
+ ep->phy_mii.duplex = DUPLEX_HALF;
+ } else if (ep->phy_mii.def->features &
+ SUPPORTED_10baseT_Full) {
+ ep->phy_mii.speed = SPEED_10;
+ ep->phy_mii.duplex = DUPLEX_FULL;
+ } else {
+ ep->phy_mii.speed = SPEED_10;
+ ep->phy_mii.duplex = DUPLEX_HALF;
+ }
+ }
emac_start_link(ep, NULL);
/* read the MAC Address */