Commit 0c95a1fa authored Nov 04, 2014 by Lendacky, Thomas Committed by David S. Miller Nov 05, 2014

amd-xgbe-phy: Sync PCS and PHY modes after reset



This patch adds support to sync the states of the PCS and the PHY
after a reset is performed.  If the PCS and the PHY are not in the
same state after reset an extra mode change would be performed. This
extra mode change might not be needed if the PCS and the PHY are
synced up after reset.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent a7beaf23

drivers/net/phy/amd-xgbe-phy.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -992,7 +992,8 @@ static int amd_xgbe_phy_soft_reset(struct phy_device *phydev)
	if (ret & MDIO_CTRL1_RESET)		if (ret & MDIO_CTRL1_RESET)
	return -ETIMEDOUT;		return -ETIMEDOUT;

	return 0;		/* Make sure the XPCS and SerDes are in compatible states */
			return amd_xgbe_phy_xgmii_mode(phydev);
	}		}

	static int amd_xgbe_phy_config_init(struct phy_device *phydev)		static int amd_xgbe_phy_config_init(struct phy_device *phydev)