net: sh_eth: do not issue a wild PHY reset through BMCR

The sh_eth driver issues an uncontrolled PHY reset through the MII
register BMCR but fails to wait for the reset to complete, and will also
implicitely wipe out all possible PHY fixups applied. Use phy_init_hw()
which remedies both problems.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index d256ce19d4de..6761dde7007a 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1704,7 +1704,10 @@ static int sh_eth_phy_start(struct net_device *ndev)
                 return ret;
 
         /* reset phy - this also wakes it from PDOWN */
-        phy_write(mdp->phydev, MII_BMCR, BMCR_RESET);
+        ret = phy_init_hw(mdp->phydev);
+        if (ret)
+                return ret;
+
         phy_start(mdp->phydev);
 
         return 0;