Documentation/devicetree/bindings/serial/ingenic,uart.yaml

   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: /schemas/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/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         vcc-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     };