1 * General Purpose Input Output (GPIO) bus.
4 - compatible: "cavium,octeon-3860-gpio"
6 Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
8 - reg: The base address of the GPIO unit's register bank.
10 - gpio-controller: This is a GPIO controller.
12 - #gpio-cells: Must be <2>. The first cell is the GPIO pin.
14 - interrupt-controller: The GPIO controller is also an interrupt
15 controller, many of its pins may be configured as an interrupt
18 - #interrupt-cells: Must be <2>. The first cell is the GPIO pin
19 connected to the interrupt source. The second cell is the interrupt
20 triggering protocol and may have one of four values:
21 1 - edge triggered on the rising edge.
22 2 - edge triggered on the falling edge
23 4 - level triggered active high.
24 8 - level triggered active low.
26 - interrupts: Interrupt routing for each pin.
30 gpio-controller@1070000000800 {
32 compatible = "cavium,octeon-3860-gpio";
33 reg = <0x10700 0x00000800 0x0 0x100>;
35 /* Interrupts are specified by two parts:
36 * 1) GPIO pin number (0..15)
37 * 2) Triggering (1 - edge rising
39 * 4 - level active high
40 * 8 - level active low)
43 #interrupt-cells = <2>;
44 /* The GPIO pin connect to 16 consecutive CUI bits */
45 interrupts = <0 16>, <0 17>, <0 18>, <0 19>,
46 <0 20>, <0 21>, <0 22>, <0 23>,
47 <0 24>, <0 25>, <0 26>, <0 27>,
48 <0 28>, <0 29>, <0 30>, <0 31>;