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* [PATCH] net: dsa: mv88e6xxx: Make sure to configure ports with external PHYs
@ 2018-09-11 22:15 Marek Vasut
  2018-09-11 23:11 ` Andrew Lunn
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Marek Vasut @ 2018-09-11 22:15 UTC (permalink / raw)
  To: netdev; +Cc: Marek Vasut, Andrew Lunn

The MV88E6xxx can have external PHYs attached to certain ports and those
PHYs could even be on different MDIO bus than the one within the switch.
This patch makes sure that ports with such PHYs are configured correctly
according to the information provided by the PHY.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 15427380e32e..dc92dd7b55ab 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -575,6 +575,13 @@ static int mv88e6xxx_port_setup_mac(struct mv88e6xxx_chip *chip, int port,
 	return err;
 }
 
+static int mv88e6xxx_phy_is_internal(struct dsa_switch *ds, int port)
+{
+	struct mv88e6xxx_chip *chip = ds->priv;
+
+	return port < chip->info->num_internal_phys;
+}
+
 /* We expect the switch to perform auto negotiation if there is a real
  * phy. However, in the case of a fixed link phy, we force the port
  * settings from the fixed link settings.
@@ -585,7 +592,8 @@ static void mv88e6xxx_adjust_link(struct dsa_switch *ds, int port,
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
 
-	if (!phy_is_pseudo_fixed_link(phydev))
+	if (!phy_is_pseudo_fixed_link(phydev) &&
+	    mv88e6xxx_phy_is_internal(ds, port))
 		return;
 
 	mutex_lock(&chip->reg_lock);
@@ -709,13 +717,17 @@ static void mv88e6xxx_mac_config(struct dsa_switch *ds, int port,
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int speed, duplex, link, pause, err;
 
-	if (mode == MLO_AN_PHY)
+	if ((mode == MLO_AN_PHY) && mv88e6xxx_phy_is_internal(ds, port))
 		return;
 
 	if (mode == MLO_AN_FIXED) {
 		link = LINK_FORCED_UP;
 		speed = state->speed;
 		duplex = state->duplex;
+	} else if (!mv88e6xxx_phy_is_internal(ds, port)) {
+		link = state->link;
+		speed = state->speed;
+		duplex = state->duplex;
 	} else {
 		speed = SPEED_UNFORCED;
 		duplex = DUPLEX_UNFORCED;
-- 
2.18.0

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2018-09-13  8:43 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-09-11 22:15 [PATCH] net: dsa: mv88e6xxx: Make sure to configure ports with external PHYs Marek Vasut
2018-09-11 23:11 ` Andrew Lunn
2018-09-11 23:14 ` Andrew Lunn
2018-09-11 23:16   ` Marek Vasut
2018-09-13  3:36 ` David Miller

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