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- * Marvell PXA GPIO controller
- Required properties:
- - compatible : Should be "mrvl,pxa-gpio" or "mrvl,mmp-gpio"
- - reg : Address and length of the register set for the device
- - interrupts : Should be the port interrupt shared by all gpio pins.
- There're three gpio interrupts in arch-pxa, and they're gpio0,
- gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp,
- gpio_mux.
- - interrupt-name : Should be the name of irq resource. Each interrupt
- binds its interrupt-name.
- - interrupt-controller : Identifies the node as an interrupt controller.
- - #interrupt-cells: Specifies the number of cells needed to encode an
- interrupt source.
- - gpio-controller : Marks the device node as a gpio controller.
- - #gpio-cells : Should be one. It is the pin number.
- Example:
- gpio: gpio@d4019000 {
- compatible = "mrvl,mmp-gpio";
- reg = <0xd4019000 0x1000>;
- interrupts = <49>;
- interrupt-name = "gpio_mux";
- gpio-controller;
- #gpio-cells = <1>;
- interrupt-controller;
- #interrupt-cells = <1>;
- };
- * Marvell Orion GPIO Controller
- Required properties:
- - compatible : Should be "marvell,orion-gpio"
- - reg : Address and length of the register set for controller.
- - gpio-controller : So we know this is a gpio controller.
- - ngpio : How many gpios this controller has.
- - interrupts : Up to 4 Interrupts for the controller.
- Optional properties:
- - mask-offset : For SMP Orions, offset for Nth CPU
- Example:
- gpio0: gpio@10100 {
- compatible = "marvell,orion-gpio";
- #gpio-cells = <2>;
- gpio-controller;
- reg = <0x10100 0x40>;
- ngpio = <32>;
- interrupts = <35>, <36>, <37>, <38>;
- };
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