Add a note to make it more clear how the driver behaves when "rgmii" vs "rgmii-id", "rgmii-idrx", or "rgmii-idtx" interface modes are selected. Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Signed-off-by: Trent Piepho <tpiepho@xxxxxxxxxx> --- Documentation/devicetree/bindings/net/ti,dp83867.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt index 9ef9338aaee1..e97f54aeac77 100644 --- a/Documentation/devicetree/bindings/net/ti,dp83867.txt +++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt @@ -11,6 +11,12 @@ Required properties: - ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h for applicable values +Note: If the interface type is PHY_INTERFACE_MODE_RGMII the TX/RX clock delays + will be left at their default values, as set by the PHY's pin strapping. + The default strapping will use a delay of 2.00 ns. Thus + PHY_INTERFACE_MODE_RGMII by default does not behave as RGMII with no + internal delay, but as PHY_INTERFACE_MODE_RGMII_ID. + Optional property: - ti,min-output-impedance - MAC Interface Impedance control to set the programmable output impedance to -- 2.14.5
