cc770.txt

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    1 Memory mapped Bosch CC770 and Intel AN82527 CAN controller
    2 
    3 Note: The CC770 is a CAN controller from Bosch, which is 100%
    4 compatible with the old AN82527 from Intel, but with "bugs" being fixed.
    5 
    6 Required properties:
    7 
    8 - compatible : should be "bosch,cc770" for the CC770 and "intc,82527"
    9         for the AN82527.
   10 
   11 - reg : should specify the chip select, address offset and size required
   12         to map the registers of the controller. The size is usually 0x80.
   13 
   14 - interrupts : property with a value describing the interrupt source
   15         (number and sensitivity) required for the controller.
   16 
   17 Optional properties:
   18 
   19 - bosch,external-clock-frequency : frequency of the external oscillator
   20         clock in Hz. Note that the internal clock frequency used by the
   21         controller is half of that value. If not specified, a default
   22         value of 16000000 (16 MHz) is used.
   23 
   24 - bosch,clock-out-frequency : slock frequency in Hz on the CLKOUT pin.
   25         If not specified or if the specified value is 0, the CLKOUT pin
   26         will be disabled.
   27 
   28 - bosch,slew-rate : slew rate of the CLKOUT signal. If not specified,
   29         a resonable value will be calculated.
   30 
   31 - bosch,disconnect-rx0-input : see data sheet.
   32 
   33 - bosch,disconnect-rx1-input : see data sheet.
   34 
   35 - bosch,disconnect-tx1-output : see data sheet.
   36 
   37 - bosch,polarity-dominant : see data sheet.
   38 
   39 - bosch,divide-memory-clock : see data sheet.
   40 
   41 - bosch,iso-low-speed-mux : see data sheet.
   42 
   43 For further information, please have a look to the CC770 or AN82527.
   44 
   45 Examples:
   46 
   47 can@3,100 {
   48         compatible = "bosch,cc770";
   49         reg = <3 0x100 0x80>;
   50         interrupts = <2 0>;
   51         interrupt-parent = <&mpic>;
   52         bosch,external-clock-frequency = <16000000>;
   53 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/net/can/cc770.txt

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sys/contrib/device-tree/Bindings/net/can/cc770.txt