88 lines
2.4 KiB
YAML
88 lines
2.4 KiB
YAML
# Common fields for CAN controllers
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include: base.yaml
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properties:
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bus-speed:
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type: int
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required: true
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description: |
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Initial bitrate in bit/s.
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sample-point:
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type: int
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description: |
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Initial sample point in per mille (e.g. 875 equals 87.5%).
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This property is required unless the timing is specified using time quanta based properties
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(`sjw`, `prop-seg`, `phase-seg1`, and `phase-seg2`).
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If this property is present, the time quanta based timing properties are ignored.
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sjw:
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type: int
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deprecated: true
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default: 1
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description: |
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Initial time quanta of resynchronization jump width (ISO 11898-1).
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Deprecated in favor of automatic calculation of a suitable default SJW based on existing
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timing parameters. Default of 1 matches the default value previously used for all in-tree CAN
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controller devicetree instances.
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Applications can still manually set the SJW using the CAN timing APIs.
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prop-seg:
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type: int
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deprecated: true
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description: |
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Initial time quanta of propagation segment (ISO 11898-1). Deprecated in favor of setting
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advanced timing parameters from the application.
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phase-seg1:
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type: int
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deprecated: true
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description: |
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Initial time quanta of phase buffer 1 segment (ISO 11898-1). Deprecated in favor of setting
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advanced timing parameters from the application.
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phase-seg2:
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type: int
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deprecated: true
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description: |
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Initial time quanta of phase buffer 2 segment (ISO 11898-1). Deprecated in favor of setting
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advanced timing parameters from the application.
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phys:
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type: phandle
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description: |
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Actively controlled CAN transceiver.
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Example:
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transceiver0: can-phy0 {
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compatible = "nxp,tja1040", "can-transceiver-gpio";
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standby-gpios = <gpioa 0 GPIO_ACTIVE_HIGH>;
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max-bitrate = <1000000>;
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#phy-cells = <0>;
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};
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&can0 {
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status = "okay";
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phys = <&transceiver0>;
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};
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child-binding:
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description: |
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Passive CAN transceiver. The child node must be named "can-transceiver".
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Example:
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&can0 {
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status = "okay";
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can-transceiver {
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max-bitrate = <1000000>;
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};
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};
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properties:
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max-bitrate:
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type: int
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required: true
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description: |
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The maximum bitrate supported by the CAN transceiver in bits/s.
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