Commit 37920fce authored by John Crispin's avatar John Crispin Committed by David S. Miller

net-next: mediatek: properly handle RGMII modes

If an external Gigabit PHY is connected to either of the MACs we need to
be able to tell the PHY to use a delay. Not doing so will result in heavy
packet loss and/or data corruption when using PHYs such as the IC+ IP1001.
We tell the PHY which MII delay mode to use via the devictree.

The ethernet driver needs to be adapted to handle all 3 rgmii-*id modes
in the same way as normal rgmii when setting up the MAC.
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarJohn Crispin <john@phrozen.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0c72c50f
...@@ -236,6 +236,9 @@ static int mtk_phy_connect(struct mtk_mac *mac) ...@@ -236,6 +236,9 @@ static int mtk_phy_connect(struct mtk_mac *mac)
return -ENODEV; return -ENODEV;
switch (of_get_phy_mode(np)) { switch (of_get_phy_mode(np)) {
case PHY_INTERFACE_MODE_RGMII_TXID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII: case PHY_INTERFACE_MODE_RGMII:
ge_mode = 0; ge_mode = 0;
break; break;
......
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