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[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>
This commit is contained in:
Wade Farnsworth 2005-10-03 22:21:33 -04:00 committed by Jeff Garzik
parent 32b5bfab9a
commit 49a9db07ab
1 changed files with 31 additions and 0 deletions
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31
drivers/net/ibm_emac/ibm_emac_core.c
View File

@ -1875,6 +1875,9 @@ static int emac_init_device(struct ocp_device *ocpdev, struct ibm_ocp_mal *mal)
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 @@ static int emac_init_device(struct ocp_device *ocpdev, struct ibm_ocp_mal *mal)
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 */