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ramips: fix gigabit switch PHY access on MDIO

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When PHY's are defined on the MDIO bus in the DTS, gigabit support was
being masked out for no apparent reason, pegging all such ports to 10/100.
If gigabit support must be disabled for some reason, there should be a
"max-speed" property in the DTS.

Reported-by: James McKenzie <openwrt@madingley.org>
Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
(cherry picked from commit 379fe50672)
This commit is contained in:
Daniel Gimpelevich 2018-08-01 07:51:47 -07:00 committed by John Crispin
parent 9ce7aa325e
commit f63463591b
1 changed files with 2 additions and 1 deletions
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3
target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mdio.c
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@ -110,7 +110,8 @@ static void phy_init(struct fe_priv *priv, struct phy_device *phy)
phy->autoneg = AUTONEG_ENABLE;
phy->speed = 0;
phy->duplex = 0;
phy->supported &= PHY_BASIC_FEATURES;
phy->supported &= IS_ENABLED(CONFIG_NET_MEDIATEK_MDIO_MT7620) ?
PHY_GBIT_FEATURES : PHY_BASIC_FEATURES;
phy->advertising = phy->supported | ADVERTISED_Autoneg;
phy_start_aneg(phy);