diff mbox

[net-next,7/7] net:fec: iMX6 FEC does not support half-duplex gigabit

Message ID 1398773350-7293-7-git-send-email-Frank.Li@freescale.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Frank Li April 29, 2014, 12:09 p.m. UTC 
From: Russell King <rmk+kernel@arm.linux.org.uk>

The iMX6 gigabit FEC does not support half-duplex gigabit operation.
Phys attacked to the FEC may support this, and we currently do nothing
to disable this feature.  This may result in an invalid configuration.
Mask out phy support for gigabit half-duplex operation.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
---
 drivers/net/ethernet/freescale/fec_main.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 1c84f3a..d9109ac 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1316,6 +1316,7 @@  static int fec_enet_mii_probe(struct net_device *ndev)
 	/* mask with MAC supported features */
 	if (id_entry->driver_data & FEC_QUIRK_HAS_GBIT) {
 		phy_dev->supported &= PHY_GBIT_FEATURES;
+		phy_dev->supported &= ~SUPPORTED_1000baseT_Half;
 #if !defined(CONFIG_M5272)
 		phy_dev->supported |= SUPPORTED_Pause;
 #endif