net: dsa: Allow DSA and CPU ports to have a phy-mode property

It can be useful for DSA and CPU ports to have a phy-mode property, in
particular to specify RGMII delays. Parse the property and set it in
the fixed-link phydev.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 1 deletions

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index afff17341b73..76e3800765f8 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -181,7 +181,7 @@ static int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct net_device *master)
         struct dsa_chip_data *cd = ds->pd;
         struct device_node *port_dn;
         struct phy_device *phydev;
-        int ret, port;
+        int ret, port, mode;
 
         for (port = 0; port < DSA_MAX_PORTS; port++) {
                 if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
@@ -196,6 +196,12 @@ static int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct net_device *master)
                                 return ret;
                         }
                         phydev = of_phy_find_device(port_dn);
+
+                        mode = of_get_phy_mode(port_dn);
+                        if (mode < 0)
+                                mode = PHY_INTERFACE_MODE_NA;
+                        phydev->interface = mode;
+
                         genphy_config_init(phydev);
                         genphy_read_status(phydev);
                         if (ds->drv->adjust_link)