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 properties:
  13   $nodename:
  14     pattern: "^serial@[0-9a-f]+$"
  15
  16   compatible:
  17     oneOf:
  18       - enum:
  19         - ingenic,jz4740-uart
  20         - ingenic,jz4760-uart
  21         - ingenic,jz4780-uart
  22         - ingenic,x1000-uart
  23       - items:
  24         - enum:
  25           - ingenic,jz4770-uart
  26           - ingenic,jz4775-uart
  27         - const: ingenic,jz4760-uart
  28       - items:
  29         - const: ingenic,jz4725b-uart
  30         - const: ingenic,jz4740-uart
  31
  32   reg:
  33     maxItems: 1
  34
  35   interrupts:
  36     maxItems: 1
  37
  38   clocks:
  39     items:
  40       - description: Baud clock
  41       - description: UART module clock
  42
  43   clock-names:
  44     items:
  45       - const: baud
  46       - const: module
  47
  48   dmas:
  49     items:
  50       - description: DMA controller phandle and request line for RX
  51       - description: DMA controller phandle and request line for TX
  52
  53   dma-names:
  54     items:
  55       - const: rx
  56       - const: tx
  57
  58 required:
  59   - compatible
  60   - reg
  61   - interrupts
  62   - clocks
  63   - clock-names
  64   - dmas
  65   - dma-names
  66
  67 examples:
  68   - |
  69     #include <dt-bindings/clock/jz4780-cgu.h>
  70     #include <dt-bindings/dma/jz4780-dma.h>
  71     #include <dt-bindings/gpio/gpio.h>
  72     serial@10032000 {
  73       compatible = "ingenic,jz4780-uart";
  74       reg = <0x10032000 0x100>;
  75
  76       interrupt-parent = <&intc>;
  77       interrupts = <49>;
  78
  79       clocks = <&ext>, <&cgu JZ4780_CLK_UART2>;
  80       clock-names = "baud", "module";
  81
  82       dmas = <&dma JZ4780_DMA_UART2_RX 0xffffffff>,
  83              <&dma JZ4780_DMA_UART2_TX 0xffffffff>;
  84       dma-names = "rx", "tx";
  85
  86       bluetooth {
  87         compatible = "brcm,bcm4330-bt";
  88         reset-gpios = <&gpf 8 GPIO_ACTIVE_HIGH>;
  89         vcc-supply = <&wlan0_power>;
  90         device-wakeup-gpios = <&gpf 5 GPIO_ACTIVE_HIGH>;
  91         host-wakeup-gpios = <&gpf 6 GPIO_ACTIVE_HIGH>;
  92         shutdown-gpios = <&gpf 4 GPIO_ACTIVE_LOW>;
  93       };
  94     };