ZHAW InES PTP time stamping IP core
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The IP core needs two different kinds of nodes. The control node
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lives somewhere in the memory map and specifies the address of the
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control registers. There can be up to three port handles placed as
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attributes of PHY nodes. These associate a particular MII bus with a
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port index within the IP core.
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Required properties of the control node:
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- compatible: "ines,ptp-ctrl"
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- reg: physical address and size of the register bank
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Required format of the port handle within the PHY node:
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- timestamper: provides control node reference and
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the port channel within the IP core
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Example:
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tstamper: timestamper@60000000 {
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compatible = "ines,ptp-ctrl";
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reg = <0x60000000 0x80>;
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};
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ethernet@80000000 {
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...
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mdio {
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...
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ethernet-phy@3 {
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...
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timestamper = <&tstamper 0>;
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};
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};
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};
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