* [PATCH net-next] phy: keep the BCMR_LOOPBACK bit while setup forced mode
@ 2016-03-25 2:47 Weidong Wang
0 siblings, 0 replies; only message in thread
From: Weidong Wang @ 2016-03-25 2:47 UTC (permalink / raw)
To: f.fainelli; +Cc: netdev, linux-kernel
When tested the PHY SGMII Loopback,:
1.set the LOOPBACK bit,
2.set the autoneg to AUTONEG_DISABLE, it calls the
genphy_setup_forced which will clear the bit.
So just keep the LOOPBACK bit while setup forced mode.
Signed-off-by: Weidong Wang <wangweidong1@huawei.com>
---
drivers/net/phy/phy_device.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index e551f3a..8da4b80 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1124,7 +1124,9 @@ static int genphy_config_advert(struct phy_device *phydev)
int genphy_setup_forced(struct phy_device *phydev)
{
int ctl = 0;
+ int val = phy_read(phydev, MII_BMCR);
+ ctl |= val & BMCR_LOOPBACK;
phydev->pause = 0;
phydev->asym_pause = 0;
--
2.7.0
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2016-03-25 2:48 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-03-25 2:47 [PATCH net-next] phy: keep the BCMR_LOOPBACK bit while setup forced mode Weidong Wang
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.