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dt-bindings: net: ethernet-phy: add property enet-phy-pair-order

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Add property enet-phy-pair-order to the device tree bindings to define
the pair order of the PHY. To simplify PCB design some manufacturers
allow to wire the pairs in a reverse order, and change the order in
software.

The property can be set to 0 to force the normal pair order (ABCD), or 1
to force the reverse pair order (DCBA).

Signed-off-by: Damien Dejean <dam.dejean@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260318215502.106528-2-dam.dejean@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Damien Dejean
2026-03-18 22:54:58 +01:00
committed by Jakub Kicinski
parent 82a5852595
commit c1887257a8
1 changed files with 6 additions and 0 deletions
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6
Documentation/devicetree/bindings/net/ethernet-phy.yaml
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@@ -126,6 +126,12 @@ properties:
e.g. wrong bootstrap configuration caused by issues in PCB
layout design.
enet-phy-pair-order:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]
description:
For normal (0) or reverse (1) order of the pairs (ABCD -> DCBA).
eee-broken-100tx:
$ref: /schemas/types.yaml#/definitions/flag
description: