ingenic,uart.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/serial/ingenic,uart.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Ingenic SoCs UART controller devicetree bindings
    8 
    9 maintainers:
   10   - Paul Cercueil <paul@crapouillou.net>
   11 
   12 allOf:
   13   - $ref: serial.yaml#
   14 
   15 properties:
   16   $nodename:
   17     pattern: "^serial@[0-9a-f]+$"
   18 
   19   compatible:
   20     oneOf:
   21       - enum:
   22           - ingenic,jz4740-uart
   23           - ingenic,jz4760-uart
   24           - ingenic,jz4780-uart
   25           - ingenic,x1000-uart
   26       - items:
   27           - enum:
   28               - ingenic,jz4770-uart
   29               - ingenic,jz4775-uart
   30           - const: ingenic,jz4760-uart
   31       - items:
   32           - const: ingenic,jz4725b-uart
   33           - const: ingenic,jz4740-uart
   34 
   35   reg:
   36     maxItems: 1
   37 
   38   interrupts:
   39     maxItems: 1
   40 
   41   clocks:
   42     items:
   43       - description: Baud clock
   44       - description: UART module clock
   45 
   46   clock-names:
   47     items:
   48       - const: baud
   49       - const: module
   50 
   51   dmas:
   52     items:
   53       - description: DMA controller phandle and request line for RX
   54       - description: DMA controller phandle and request line for TX
   55 
   56   dma-names:
   57     items:
   58       - const: rx
   59       - const: tx
   60 
   61 required:
   62   - compatible
   63   - reg
   64   - interrupts
   65   - clocks
   66   - clock-names
   67   - dmas
   68   - dma-names
   69 
   70 unevaluatedProperties: false
   71 
   72 examples:
   73   - |
   74     #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
   75     #include <dt-bindings/dma/jz4780-dma.h>
   76     #include <dt-bindings/gpio/gpio.h>
   77     serial@10032000 {
   78       compatible = "ingenic,jz4780-uart";
   79       reg = <0x10032000 0x100>;
   80 
   81       interrupt-parent = <&intc>;
   82       interrupts = <49>;
   83 
   84       clocks = <&ext>, <&cgu JZ4780_CLK_UART2>;
   85       clock-names = "baud", "module";
   86 
   87       dmas = <&dma JZ4780_DMA_UART2_RX 0xffffffff>,
   88              <&dma JZ4780_DMA_UART2_TX 0xffffffff>;
   89       dma-names = "rx", "tx";
   90 
   91       bluetooth {
   92         compatible = "brcm,bcm4330-bt";
   93         reset-gpios = <&gpf 8 GPIO_ACTIVE_HIGH>;
   94         vbat-supply = <&wlan0_power>;
   95         device-wakeup-gpios = <&gpf 5 GPIO_ACTIVE_HIGH>;
   96         host-wakeup-gpios = <&gpf 6 GPIO_ACTIVE_HIGH>;
   97         shutdown-gpios = <&gpf 4 GPIO_ACTIVE_LOW>;
   98       };
   99     };

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sys/contrib/device-tree/Bindings/serial/ingenic,uart.yaml