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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/gpio-mvebu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Marvell EBU GPIO controller
maintainers:
- Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- Andrew Lunn <andrew@lunn.ch>
properties:
compatible:
oneOf:
- enum:
- marvell,armada-8k-gpio
- marvell,orion-gpio
- items:
- enum:
- marvell,mv78200-gpio
- marvell,armada-370-gpio
- const: marvell,orion-gpio
- description: Deprecated binding
items:
- const: marvell,armadaxp-gpio
- const: marvell,orion-gpio
deprecated: true
reg:
description: |
Address and length of the register set for the device. Not used for
marvell,armada-8k-gpio.
A second entry can be provided, for the PWM function using the GPIO Blink
Counter on/off registers.
minItems: 1
maxItems: 2
reg-names:
items:
- const: gpio
- const: pwm
minItems: 1
offset:
$ref: /schemas/types.yaml#/definitions/uint32
description: Offset in the register map for the gpio registers (in bytes)
interrupts:
description: |
The list of interrupts that are used for all the pins managed by this
GPIO bank. There can be more than one interrupt (example: 1 interrupt
per 8 pins on Armada XP, which means 4 interrupts per bank of 32
GPIOs).
minItems: 1
maxItems: 4
interrupt-controller: true
"#interrupt-cells":
const: 2
gpio-controller: true
ngpios:
minimum: 1
maximum: 32
"#gpio-cells":
const: 2
marvell,pwm-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description: Offset in the register map for the pwm registers (in bytes)
"#pwm-cells":
description:
The first cell is the GPIO line number. The second cell is the period
in nanoseconds.
const: 2
clocks:
description:
Clock(s) used for PWM function.
items:
- description: Core clock
- description: AXI bus clock
minItems: 1
clock-names:
items:
- const: core
- const: axi
minItems: 1
required:
- compatible
- gpio-controller
- ngpios
- "#gpio-cells"
allOf:
- if:
properties:
compatible:
contains:
const: marvell,armada-8k-gpio
then:
required:
- offset
else:
required:
- reg
unevaluatedProperties: false
examples:
- |
gpio@d0018100 {
compatible = "marvell,armadaxp-gpio", "marvell,orion-gpio";
reg = <0xd0018100 0x40>, <0xd0018800 0x30>;
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <16>, <17>, <18>, <19>;
};
- |
gpio@18140 {
compatible = "marvell,armada-370-gpio", "marvell,orion-gpio";
reg = <0x18140 0x40>, <0x181c8 0x08>;
reg-names = "gpio", "pwm";
ngpios = <17>;
gpio-controller;
#gpio-cells = <2>;
#pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <87>, <88>, <89>;
clocks = <&coreclk 0>;
};
|
