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| -rw-r--r-- | Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml b/Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml new file mode 100644 index 000000000000..042de9d5a92b --- /dev/null +++ b/Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/ptp/nxp,ptp-netc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP NETC V4 Timer PTP clock + +description: + NETC V4 Timer provides current time with nanosecond resolution, precise + periodic pulse, pulse on timeout (alarm), and time capture on external + pulse support. And it supports time synchronization as required for + IEEE 1588 and IEEE 802.1AS-2020. + +maintainers: + - Wei Fang <wei.fang@nxp.com> + - Clark Wang <xiaoning.wang@nxp.com> + +properties: + compatible: + enum: + - pci1131,ee02 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + description: + The reference clock of NETC Timer, can be selected between 3 different + clock sources using an integrated hardware mux TMR_CTRL[CK_SEL]. + The "ccm" means the reference clock comes from CCM of SoC. + The "ext" means the reference clock comes from external IO pins. + If not present, indicates that the system clock of NETC IP is selected + as the reference clock. + + clock-names: + enum: + - ccm + - ext + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/pci/pci-device.yaml + +unevaluatedProperties: false + +examples: + - | + pcie { + #address-cells = <3>; + #size-cells = <2>; + + ptp-timer@18,0 { + compatible = "pci1131,ee02"; + reg = <0x00c000 0 0 0 0>; + clocks = <&scmi_clk 18>; + clock-names = "ccm"; + }; + }; |