On Mon, Dec 16, 2019 at 08:13:23AM -0800, Richard Cochran wrote:
> This patch add a new binding that allows non-PHY MII time stamping
> devices to find their buses. The new documentation covers both the
> generic binding and one upcoming user.
>
> Signed-off-by: Richard Cochran <richardcochran@xxxxxxxxx>
> Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Rob might want YAML?
> ---
> .../devicetree/bindings/ptp/ptp-ines.txt | 35 ++++++++++++++++
> .../devicetree/bindings/ptp/timestamper.txt | 41 +++++++++++++++++++
> 2 files changed, 76 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/ptp/ptp-ines.txt
> create mode 100644 Documentation/devicetree/bindings/ptp/timestamper.txt
>
> diff --git a/Documentation/devicetree/bindings/ptp/ptp-ines.txt b/Documentation/devicetree/bindings/ptp/ptp-ines.txt
> new file mode 100644
> index 000000000000..4c242bd1ce9c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/ptp/ptp-ines.txt
> @@ -0,0 +1,35 @@
> +ZHAW InES PTP time stamping IP core
> +
> +The IP core needs two different kinds of nodes. The control node
> +lives somewhere in the memory map and specifies the address of the
> +control registers. There can be up to three port handles placed as
> +attributes of PHY nodes. These associate a particular MII bus with a
> +port index within the IP core.
> +
> +Required properties of the control node:
> +
> +- compatible: "ines,ptp-ctrl"
> +- reg: physical address and size of the register bank
> +
> +Required format of the port handle within the PHY node:
> +
> +- timestamper: provides control node reference and
> + the port channel within the IP core
> +
> +Example:
> +
> + tstamper: timestamper@60000000 {
> + compatible = "ines,ptp-ctrl";
> + reg = <0x60000000 0x80>;
> + };
> +
> + ethernet@80000000 {
> + ...
> + mdio {
> + ...
> + ethernet-phy@3 {
> + ...
> + timestamper = <&tstamper 0>;
You should also add this to Documentation/devicetree/bindings/net/ethernet-phy.yaml
Andrew
