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

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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>
This commit is contained in:
Lendacky, Thomas 2014-11-04 16:07:35 -06:00 committed by David S. Miller
parent a7beaf2300
commit 0c95a1faaa
1 changed files with 2 additions and 1 deletions
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3
drivers/net/phy/amd-xgbe-phy.c
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@ -992,7 +992,8 @@ static int amd_xgbe_phy_soft_reset(struct phy_device *phydev)
if (ret & MDIO_CTRL1_RESET)
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)