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




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Based on kernel version 3.9. Page generated on 2013-05-02 22:58 EST.

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