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
   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,jz4750-uart
  24           - ingenic,jz4760-uart
  25           - ingenic,jz4780-uart
  26           - ingenic,x1000-uart
  27       - items:
  28           - enum:
  29               - ingenic,jz4770-uart
  30               - ingenic,jz4775-uart
  31           - const: ingenic,jz4760-uart
  32       - items:
  33           - const: ingenic,jz4725b-uart
  34           - const: ingenic,jz4740-uart
  35       - items:
  36           - const: ingenic,jz4755-uart
  37           - const: ingenic,jz4750-uart
  38
  39   reg:
  40     maxItems: 1
  41
  42   interrupts:
  43     maxItems: 1
  44
  45   clocks:
  46     items:
  47       - description: Baud clock
  48       - description: UART module clock
  49
  50   clock-names:
  51     items:
  52       - const: baud
  53       - const: module
  54
  55   dmas:
  56     items:
  57       - description: DMA controller phandle and request line for RX
  58       - description: DMA controller phandle and request line for TX
  59
  60   dma-names:
  61     items:
  62       - const: rx
  63       - const: tx
  64
  65 required:
  66   - compatible
  67   - reg
  68   - interrupts
  69   - clocks
  70   - clock-names
  71   - dmas
  72   - dma-names
  73
  74 unevaluatedProperties: false
  75
  76 examples:
  77   - |
  78     #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
  79     #include <dt-bindings/dma/jz4780-dma.h>
  80     #include <dt-bindings/gpio/gpio.h>
  81     serial@10032000 {
  82       compatible = "ingenic,jz4780-uart";
  83       reg = <0x10032000 0x100>;
  84
  85       interrupt-parent = <&intc>;
  86       interrupts = <49>;
  87
  88       clocks = <&ext>, <&cgu JZ4780_CLK_UART2>;
  89       clock-names = "baud", "module";
  90
  91       dmas = <&dma JZ4780_DMA_UART2_RX 0xffffffff>,
  92              <&dma JZ4780_DMA_UART2_TX 0xffffffff>;
  93       dma-names = "rx", "tx";
  94
  95       bluetooth {
  96         compatible = "brcm,bcm4330-bt";
  97         reset-gpios = <&gpf 8 GPIO_ACTIVE_HIGH>;
  98         vbat-supply = <&wlan0_power>;
  99         device-wakeup-gpios = <&gpf 5 GPIO_ACTIVE_HIGH>;
 100         host-wakeup-gpios = <&gpf 6 GPIO_ACTIVE_HIGH>;
 101         shutdown-gpios = <&gpf 4 GPIO_ACTIVE_LOW>;
 102       };
 103     };