FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/net/can/sja1000.txt

     Memory mapped SJA1000 CAN controller from NXP (formerly Philips)
     
     Required properties:
     
     - compatible : should be one of "nxp,sja1000", "technologic,sja1000".
     
     - reg : should specify the chip select, address offset and size required
             to map the registers of the SJA1000. The size is usually 0x80.
     
    - interrupts: property with a value describing the interrupt source
            (number and sensitivity) required for the SJA1000.
    
    Optional properties:
    
    - reg-io-width : Specify the size (in bytes) of the IO accesses that
            should be performed on the device.  Valid value is 1, 2 or 4.
            This property is ignored for technologic version.
            Default to 1 (8 bits).
    
    - nxp,external-clock-frequency : Frequency of the external oscillator
            clock in Hz. Note that the internal clock frequency used by the
            SJA1000 is half of that value. If not specified, a default value
            of 16000000 (16 MHz) is used.
    
    - nxp,tx-output-mode : operation mode of the TX output control logic:
            <0x0> : bi-phase output mode
            <0x1> : normal output mode (default)
            <0x2> : test output mode
            <0x3> : clock output mode
    
    - nxp,tx-output-config : TX output pin configuration:
            <0x01> : TX0 invert
            <0x02> : TX0 pull-down (default)
            <0x04> : TX0 pull-up
            <0x06> : TX0 push-pull
            <0x08> : TX1 invert
            <0x10> : TX1 pull-down
            <0x20> : TX1 pull-up
            <0x30> : TX1 push-pull
    
    - nxp,clock-out-frequency : clock frequency in Hz on the CLKOUT pin.
            If not specified or if the specified value is 0, the CLKOUT pin
            will be disabled.
    
    - nxp,no-comparator-bypass : Allows to disable the CAN input comparator.
    
    For further information, please have a look to the SJA1000 data sheet.
    
    Examples:
    
    can@3,100 {
            compatible = "nxp,sja1000";
            reg = <3 0x100 0x80>;
            interrupts = <2 0>;
            interrupt-parent = <&mpic>;
            nxp,external-clock-frequency = <16000000>;
    };
    

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