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dts: mdio-controller: Add MDC frequency property

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Add a property to the mdio controller binding to describe the MDC
frequency generated by the controller.

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>
This commit is contained in:
Declan Snyder 2023-12-11 14:49:16 -06:00 committed by Carles Cufí
parent cda5e58aa5
commit 7688e5efb1
1 changed files with 9 additions and 0 deletions
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9
dts/bindings/mdio/mdio-controller.yaml
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@ -22,3 +22,12 @@ properties:
When present, the SMA suppresses the 32-bit preamble and transmits
MDIO frames with only 1 preamble bit. By default, the MDIO frame
always has 32 bits of preamble as defined in the IEEE 802.3 specs.
clock-frequency:
type: int
default: 2500000
description: |
Some MDIO controllers have the ability to configure the MDC frequency.
If present, this property may be used to specify the MDC frequency based
on what the PHYs connected to the mdio bus can support. Default of 2.5MHz
is the standard and should supported by all PHYs.