77 lines
1.8 KiB
YAML
77 lines
1.8 KiB
YAML
# 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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$id: http://devicetree.org/schemas/usb/atmel,at91rm9200-udc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Atmel AT91 USB Device Controller (UDC)
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maintainers:
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- Nicolas Ferre <nicolas.ferre@microchip.com>
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- Alexandre Belloni <alexandre.belloni@bootlin.com>
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description:
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The Atmel AT91 USB Device Controller provides USB gadget (device-mode)
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functionality on AT91 SoCs. It requires a peripheral clock and an AHB
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clock for operation and may optionally control VBUS power through a GPIO.
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properties:
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compatible:
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enum:
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- atmel,at91rm9200-udc
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- atmel,at91sam9260-udc
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- atmel,at91sam9261-udc
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- atmel,at91sam9263-udc
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 2
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clock-names:
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items:
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- const: pclk
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- const: hclk
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atmel,vbus-gpio:
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description: GPIO used to enable or control VBUS power for the USB bus.
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maxItems: 1
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atmel,matrix:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: Phandle to the Atmel bus matrix controller.
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atmel,pullup-gpio:
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description:
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GPIO controlling the USB D+ pull-up resistor used to signal device
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connection to the host.
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maxItems: 1
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/clock/at91.h>
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#include <dt-bindings/gpio/gpio.h>
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gadget@fffa4000 {
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compatible = "atmel,at91rm9200-udc";
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reg = <0xfffa4000 0x4000>;
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interrupts = <11 IRQ_TYPE_LEVEL_HIGH 2>;
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clocks = <&udc_clk>, <&udpck>;
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clock-names = "pclk", "hclk";
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atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
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};
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...
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