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https://github.com/brain-hackers/u-boot-brain
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31 lines
856 B
Plaintext
31 lines
856 B
Plaintext
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Fixed link Device Tree binding
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------------------------------
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Some Ethernet MACs have a "fixed link", and are not connected to a
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normal MDIO-managed PHY device. For those situations, a Device Tree
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binding allows to describe a "fixed link".
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Such a fixed link situation is described by creating a 'fixed-link'
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sub-node of the Ethernet MAC device node, with the following
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properties:
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* 'speed' (integer, mandatory), to indicate the link speed. Accepted
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values are 10, 100 and 1000
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* 'full-duplex' (boolean, optional), to indicate that full duplex is
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used. When absent, half duplex is assumed.
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* 'pause' (boolean, optional), to indicate that pause should be
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enabled.
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* 'asym-pause' (boolean, optional), to indicate that asym_pause should
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be enabled.
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Examples:
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ethernet@0 {
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...
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fixed-link {
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speed = <1000>;
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full-duplex;
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};
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...
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};
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