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Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/net/fixed-link.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/fixed-link.txt b/Documentation/devicetree/bindings/net/fixed-link.txt new file mode 100644 index 0000000..e956de1 --- /dev/null +++ b/Documentation/devicetree/bindings/net/fixed-link.txt @@ -0,0 +1,30 @@ +Fixed link Device Tree binding +------------------------------ + +Some Ethernet MACs have a "fixed link", and are not connected to a +normal MDIO-managed PHY device. For those situations, a Device Tree +binding allows to describe a "fixed link". + +Such a fixed link situation is described by creating a 'fixed-link' +sub-node of the Ethernet MAC device node, with the following +properties: + +* 'speed' (integer, mandatory), to indicate the link speed. Accepted + values are 10, 100 and 1000 +* 'full-duplex' (boolean, optional), to indicate that full duplex is + used. When absent, half duplex is assumed. +* 'pause' (boolean, optional), to indicate that pause should be + enabled. +* 'asym-pause' (boolean, optional), to indicate that asym_pause should + be enabled. + +Example: + +ethernet@0 { + ... + fixed-link { + speed = <1000>; + full-duplex; + }; + ... +}; |