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 --- doc/device-tree-bindings/net/aquantia-phy.txt | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 doc/device-tree-bindings/net/aquantia-phy.txt
diff --git a/doc/device-tree-bindings/net/aquantia-phy.txt b/doc/device-tree-bindings/net/aquantia-phy.txt new file mode 100644 index 0000000000..89ce61e05b --- /dev/null +++ b/doc/device-tree-bindings/net/aquantia-phy.txt @@ -0,0 +1,25 @@ +PHY nodes for Aquantia devices. + +This text describes properties that are applicable to Aquantia PHY nodes in +addition to the bindings in phy.txt. + +Aquantia PHYs allow some flexibility in the way they are wired in a system, +they allow MDI pins to be reversed, LEDs linked up in different weays, have an +I2C slave interface that can be used for debug. Normally the configuration +corresponding to these is driven by the PHY firmware with the downside that +a custom firmware is needed for each integration of a PHY. +Several optional bindings are defined that allow these configuration points to +be driven by the PHY driver and reduce dependency on specific FW versions. + +Optional properties: +mdi-reversal: 0 or 1 indicating that reversal must be disabled/enabled. + Firmware default is used if the property is missing. +smb-addr: I2C/SMBus address to use, firmware default is used if the property + is missing. + +Example node: +phy@00 { + reg = <0x00>; + mdi-reversal = <1>; + smb-addr = <0x25>; +};