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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
gpio-ranges:
maxItems:
1
marvell,pwm-offset:
$ref: /schemas/types.yaml#/definitions/uint32
description: Offset in the register map for the pwm registers (in bytes)
"#pwm-cells":
description:
The first cell is the GPIO line number. The second cell is the period
in nanoseconds.
const:
2
clocks:
description:
Clock(s) used for PWM function.
items:
- description: Core clock
- description: AXI bus clock
minItems:
1
clock-names:
items:
- const: core
- const: axi
minItems:
1
patternProperties:
"^(.+-hog(-[
0-
9]+)?)$":
type: object
required:
- gpio-hog
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>;
};