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phy: marvell: add link partner advertised modes

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Read the standard link partner advertisment registers and store it in
phydev->lp_advertising, so ethtool can report this information to
userspace via ethtool.  Zero it as per genphy if autonegotiation is
disabled.  Tested with a Marvell 88E1512 PHY.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2015-09-24 00:07:17 +01:00 • committed by David S. Miller
parent b626ef0128
commit 357cd64c18
1 changed files with 9 additions and 0 deletions
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9
drivers/net/phy/marvell.c
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@ -785,6 +785,7 @@ static int marvell_read_status(struct phy_device *phydev)
int adv; int adv;
int err; int err;
int lpa; int lpa;
int lpagb;
int status = 0; int status = 0;
/* Update the link, but return if there /* Update the link, but return if there
@ -802,10 +803,17 @@ static int marvell_read_status(struct phy_device *phydev)
if (lpa < 0) if (lpa < 0)
return lpa; return lpa;
lpagb = phy_read(phydev, MII_STAT1000);
if (lpagb < 0)
return lpagb;
adv = phy_read(phydev, MII_ADVERTISE); adv = phy_read(phydev, MII_ADVERTISE);
if (adv < 0) if (adv < 0)
return adv; return adv;
phydev->lp_advertising = mii_stat1000_to_ethtool_lpa_t(lpagb) |
mii_lpa_to_ethtool_lpa_t(lpa);
lpa &= adv; lpa &= adv;
if (status & MII_M1011_PHY_STATUS_FULLDUPLEX) if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
@ -853,6 +861,7 @@ static int marvell_read_status(struct phy_device *phydev)
phydev->speed = SPEED_10; phydev->speed = SPEED_10;
phydev->pause = phydev->asym_pause = 0; phydev->pause = phydev->asym_pause = 0;
phydev->lp_advertising = 0;
} }
return 0; return 0;