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A couple of optional properties have been introduced for Aquantia PHY allowing the driver to set up wiring related configuration points that are otherwise driven by firmware. Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
26 lines
1018 B
Plaintext
26 lines
1018 B
Plaintext
PHY nodes for Aquantia devices.
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This text describes properties that are applicable to Aquantia PHY nodes in
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addition to the bindings in phy.txt.
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Aquantia PHYs allow some flexibility in the way they are wired in a system,
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they allow MDI pins to be reversed, LEDs linked up in different weays, have an
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I2C slave interface that can be used for debug. Normally the configuration
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corresponding to these is driven by the PHY firmware with the downside that
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a custom firmware is needed for each integration of a PHY.
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Several optional bindings are defined that allow these configuration points to
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be driven by the PHY driver and reduce dependency on specific FW versions.
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Optional properties:
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mdi-reversal: 0 or 1 indicating that reversal must be disabled/enabled.
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Firmware default is used if the property is missing.
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smb-addr: I2C/SMBus address to use, firmware default is used if the property
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is missing.
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Example node:
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phy@00 {
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reg = <0x00>;
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mdi-reversal = <1>;
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smb-addr = <0x25>;
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};
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