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nxp,flexcan

Note

An implementation of a driver matching this compatible is available in drivers/can/can_mcux_flexcan.c.

Description

NXP FlexCAN controller

Example:
  flexcan0: can@40024000 {
    status = "okay";
    compatible = "nxp,flexcan";
    reg = <0x40024000 0x1000>;
    interrupts = <78 0>, <79 0>, <80 0>, <81 0>;
    interrupt-names = "warning", "error", "wake-up", "mb-0-15";
    clocks = <&scg KINETIS_SCG_BUS_CLK>;
    clk-source = <1>;
    pinctrl-0 = <&pinmux_flexcan0>;
    pinctrl-names = "default";

    can-transceiver {
      max-bitrate = <1000000>;
    };
  };

Properties

Top level properties

These property descriptions apply to “nxp,flexcan” nodes themselves. This page also describes child node properties in the following sections.

Properties not inherited from the base binding file.

Name	Type	Details
`clk-source`	`int`	CAN engine clock source This property is required.
`bitrate`	`int`	Initial bitrate in bit/s. If this is unset, the initial bitrate is set to CONFIG_CAN_DEFAULT_BITRATE.
`sample-point`	`int`	Initial sample point in per mille (e.g. 875 equals 87.5%). If this is unset (or if it is set to 0), the initial sample point will default to 75.0% for bitrates over 800 kbit/s, 80.0% for bitrates over 500 kbit/s, and 87.5% for all other bitrates.
`phys`	`phandle`	Actively controlled CAN transceiver. Example: transceiver0: can-phy0 { compatible = "nxp,tja1040", "can-transceiver-gpio"; standby-gpios = <gpioa 0 GPIO_ACTIVE_HIGH>; max-bitrate = <1000000>; #phy-cells = <0>; }; &can0 { status = "okay"; phys = <&transceiver0>; };
`pinctrl-0`	`phandles`	Pin configuration/s for the first state. Content is specific to the selected pin controller driver implementation.
`pinctrl-1`	`phandles`	Pin configuration/s for the second state. See pinctrl-0.
`pinctrl-2`	`phandles`	Pin configuration/s for the third state. See pinctrl-0.
`pinctrl-3`	`phandles`	Pin configuration/s for the fourth state. See pinctrl-0.
`pinctrl-4`	`phandles`	Pin configuration/s for the fifth state. See pinctrl-0.
`pinctrl-names`	`string-array`	Names for the provided states. The number of names needs to match the number of states.

Deprecated properties not inherited from the base binding file.

Name	Type	Details
`bus-speed`	`int`	Deprecated. This property has been renamed to bitrate. Initial bitrate in bit/s. If this is unset, the initial bitrate is set to CONFIG_CAN_DEFAULT_BITRATE.

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “nxp,flexcan” compatible.

Name	Type	Details
`reg`	`array`	register space This property is required. See Important properties for more information.
`interrupts`	`array`	interrupts for device This property is required. See Important properties for more information.
`clocks`	`phandle-array`	Clock gate information This property is required.
`status`	`string`	indicates the operational status of a device Legal values: `'ok'`, `'okay'`, `'disabled'`, `'reserved'`, `'fail'`, `'fail-sss'` See Important properties for more information.
`compatible`	`string-array`	compatible strings This property is required. See Important properties for more information.
`reg-names`	`string-array`	name of each register space
`interrupts-extended`	`compound`	extended interrupt specifier for device
`interrupt-names`	`string-array`	name of each interrupt
`interrupt-parent`	`phandle`	phandle to interrupt controller node
`label`	`string`	Human readable string describing the device (used as device_get_binding() argument) See Important properties for more information. This property is deprecated.
`clock-names`	`string-array`	name of each clock
`#address-cells`	`int`	number of address cells in reg property
`#size-cells`	`int`	number of size cells in reg property
`dmas`	`phandle-array`	DMA channels specifiers
`dma-names`	`string-array`	Provided names of DMA channel specifiers
`io-channels`	`phandle-array`	IO channels specifiers
`io-channel-names`	`string-array`	Provided names of IO channel specifiers
`mboxes`	`phandle-array`	mailbox / IPM channels specifiers
`mbox-names`	`string-array`	Provided names of mailbox / IPM channel specifiers
`power-domains`	`phandle-array`	Power domain specifiers
`power-domain-names`	`string-array`	Provided names of power domain specifiers
`#power-domain-cells`	`int`	Number of cells in power-domains property
`zephyr,deferred-init`	`boolean`	Do not initialize device automatically on boot. Device should be manually initialized using device_init().
`wakeup-source`	`boolean`	Property to identify that a device can be used as wake up source. When this property is provided a specific flag is set into the device that tells the system that the device is capable of wake up the system. Wake up capable devices are disabled (interruptions will not wake up the system) by default but they can be enabled at runtime if necessary.
`zephyr,pm-device-runtime-auto`	`boolean`	Automatically configure the device for runtime power management after the init function runs.
`zephyr,disabling-power-states`	`phandles`	List of power states that will disable this device power.

Child node properties

Name	Type	Details
`min-bitrate`	`int`	The minimum bitrate supported by the CAN transceiver in bits/s.
`max-bitrate`	`int`	The maximum bitrate supported by the CAN transceiver in bits/s. This property is required.