Micrel KSZ9021/KSZ9031 Gigabit Ethernet PHY
-Some boards require special tuning values, particularly when it comes to
-clock delays. You can specify clock delay values by adding
-micrel-specific properties to an Ethernet OF device node.
+Some boards require special tuning values, particularly when it comes
+to clock delays. You can specify clock delay values in the PHY OF
+device node. Deprecated, but still supported, these properties can
+also be added to an Ethernet OF device node.
Note that these settings are applied after any phy-specific fixup from
phy_fixup_list (see phy_init_hw() from drivers/net/phy/phy_device.c),
Examples:
- /* Attach to an Ethernet device with autodetected PHY */
- &enet {
- rxc-skew-ps = <3000>;
- rxdv-skew-ps = <0>;
- txc-skew-ps = <3000>;
- txen-skew-ps = <0>;
- status = "okay";
- };
-
- /* Attach to an explicitly-specified PHY */
mdio {
phy0: ethernet-phy@0 {
rxc-skew-ps = <3000>;