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 reasonable 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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