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net: phy: marvell: Fix init function for m88e1145

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Commit a058052c changed the generic phy_reset() to clear all bits in
BMCR. This inevitably clears the ANEG bit. m88e1145 requires any
change to ANEG bit to be followed by a software reset. This seems to
be different from other PHYs. Implement read-modify-write procedure
for this PHY init.

Signed-off-by: York Sun <york.sun@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
York Sun 2017-06-06 09:22:40 -07:00
parent e02eae6f97
commit ef621da7f8
1 changed files with 4 additions and 1 deletions
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5
drivers/net/phy/marvell.c
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@ -482,7 +482,10 @@ static int m88e1145_config(struct phy_device *phydev)
genphy_config_aneg(phydev);
phy_reset(phydev);
/* soft reset */
reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
reg |= BMCR_RESET;
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, reg);
return 0;
}