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     1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 # Copyright (c) 2020 Facebook Inc.
    3 %YAML 1.2
    4 ---
    5 $id: http://devicetree.org/schemas/usb/aspeed,ast2600-udc.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: ASPEED USB 2.0 Device Controller
    9 
   10 maintainers:
   11   - Neal Liu <neal_liu@aspeedtech.com>
   12 
   13 description: |+
   14   The ASPEED USB 2.0 Device Controller implements 1 control endpoint and
   15   4 generic endpoints for AST260x.
   16 
   17   Supports independent DMA channel for each generic endpoint.
   18   Supports 32/256 stages descriptor mode for all generic endpoints.
   19 
   20 properties:
   21   compatible:
   22     enum:
   23       - aspeed,ast2600-udc
   24 
   25   reg:
   26     maxItems: 1
   27 
   28   clocks:
   29     maxItems: 1
   30 
   31   interrupts:
   32     maxItems: 1
   33 
   34 required:
   35   - compatible
   36   - reg
   37   - clocks
   38   - interrupts
   39 
   40 additionalProperties: false
   41 
   42 examples:
   43   - |
   44     #include <dt-bindings/clock/aspeed-clock.h>
   45     udc: usb@1e6a2000 {
   46         compatible = "aspeed,ast2600-udc";
   47         reg = <0x1e6a2000 0x300>;
   48         interrupts = <9>;
   49         clocks = <&syscon ASPEED_CLK_GATE_USBPORT2CLK>;
   50         pinctrl-names = "default";
   51         pinctrl-0 = <&pinctrl_usb2bd_default>;
   52     };
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