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Documentation / devicetree / bindings / gpio / mrvl-gpio.txt




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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:00 EST.

1	* Marvell PXA GPIO controller
2	
3	Required properties:
4	- compatible : Should be "intel,pxa25x-gpio", "intel,pxa26x-gpio",
5			"intel,pxa27x-gpio", "intel,pxa3xx-gpio",
6			"marvell,pxa93x-gpio", "marvell,mmp-gpio" or
7			"marvell,mmp2-gpio".
8	- reg : Address and length of the register set for the device
9	- interrupts : Should be the port interrupt shared by all gpio pins.
10	  There're three gpio interrupts in arch-pxa, and they're gpio0,
11	  gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp,
12	  gpio_mux.
13	- interrupt-names : Should be the names of irq resources. Each interrupt
14	  uses its own interrupt name, so there should be as many interrupt names
15	  as referenced interrups.
16	- interrupt-controller : Identifies the node as an interrupt controller.
17	- #interrupt-cells: Specifies the number of cells needed to encode an
18	  interrupt source.
19	- gpio-controller : Marks the device node as a gpio controller.
20	- #gpio-cells : Should be one.  It is the pin number.
21	
22	Example:
23	
24		gpio: gpio@d4019000 {
25			compatible = "marvell,mmp-gpio";
26			reg = <0xd4019000 0x1000>;
27			interrupts = <49>;
28			interrupt-names = "gpio_mux";
29			gpio-controller;
30			#gpio-cells = <1>;
31			interrupt-controller;
32			#interrupt-cells = <1>;
33	      };
34	
35	* Marvell Orion GPIO Controller
36	
37	Required properties:
38	- compatible         : Should be "marvell,orion-gpio"
39	- reg                : Address and length of the register set for controller.
40	- gpio-controller    : So we know this is a gpio controller.
41	- ngpio              : How many gpios this controller has.
42	- interrupts	     : Up to 4 Interrupts for the controller.
43	
44	Optional properties:
45	- mask-offset        : For SMP Orions, offset for Nth CPU
46	
47	Example:
48	
49			gpio0: gpio@10100 {
50				compatible = "marvell,orion-gpio";
51				#gpio-cells = <2>;
52				gpio-controller;
53				reg = <0x10100 0x40>;
54				ngpio = <32>;
55				interrupts = <35>, <36>, <37>, <38>;
56			};
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