Re: [PATCH net-next v3 1/2] dt-bindings: net: Add documentation for Half duplex support.
flat view
From: Rob Herring <robh@kernel.org>
Date: 2023-09-14 14:29:30
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linux-devicetree, lkml
On Wed, 13 Sep 2023 14:40:10 +0530, MD Danish Anwar wrote:
In order to support half-duplex operation at 10M and 100M link speeds, the PHY collision detection signal (COL) should be routed to ICSSG GPIO pin (PRGx_PRU0/1_GPI10) so that firmware can detect collision signal and apply the CSMA/CD algorithm applicable for half duplex operation. A DT property, "ti,half-duplex-capable" is introduced for this purpose. If board has PHY COL pin conencted to PRGx_PRU1_GPIO10, this DT property can be added to eth node of ICSSG, MII port to support half duplex operation at that port. Reviewed-by: Roger Quadros <rogerq@kernel.org> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> --- Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml | 7 +++++++ 1 file changed, 7 insertions(+)
Reviewed-by: Rob Herring <robh@kernel.org>