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