snps-dw-apb-uart.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/serial/snps-dw-apb-uart.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Synopsys DesignWare ABP UART
    8 
    9 maintainers:
   10   - Rob Herring <robh@kernel.org>
   11 
   12 allOf:
   13   - $ref: serial.yaml#
   14 
   15 properties:
   16   compatible:
   17     oneOf:
   18       - items:
   19           - enum:
   20               - renesas,r9a06g032-uart
   21               - renesas,r9a06g033-uart
   22           - const: renesas,rzn1-uart
   23       - items:
   24           - enum:
   25               - rockchip,px30-uart
   26               - rockchip,rk1808-uart
   27               - rockchip,rk3036-uart
   28               - rockchip,rk3066-uart
   29               - rockchip,rk3188-uart
   30               - rockchip,rk3288-uart
   31               - rockchip,rk3308-uart
   32               - rockchip,rk3328-uart
   33               - rockchip,rk3368-uart
   34               - rockchip,rk3399-uart
   35               - rockchip,rk3568-uart
   36               - rockchip,rk3588-uart
   37               - rockchip,rv1108-uart
   38               - rockchip,rv1126-uart
   39           - const: snps,dw-apb-uart
   40       - items:
   41           - enum:
   42               - brcm,bcm11351-dw-apb-uart
   43               - brcm,bcm21664-dw-apb-uart
   44           - const: snps,dw-apb-uart
   45       - items:
   46           - enum:
   47               - starfive,jh7100-hsuart
   48               - starfive,jh7100-uart
   49           - const: snps,dw-apb-uart
   50       - const: snps,dw-apb-uart
   51 
   52   reg:
   53     maxItems: 1
   54 
   55   interrupts:
   56     maxItems: 1
   57 
   58   clock-frequency: true
   59 
   60   clocks:
   61     minItems: 1
   62     maxItems: 2
   63 
   64   clock-names:
   65     items:
   66       - const: baudclk
   67       - const: apb_pclk
   68 
   69   snps,uart-16550-compatible:
   70     description: reflects the value of UART_16550_COMPATIBLE configuration
   71       parameter. Define this if your UART does not implement the busy functionality.
   72     type: boolean
   73 
   74   resets:
   75     maxItems: 1
   76 
   77   reg-shift: true
   78 
   79   reg-io-width: true
   80 
   81   dcd-override:
   82     description: Override the DCD modem status signal. This signal will
   83       always be reported as active instead of being obtained from the modem
   84       status register. Define this if your serial port does not use this
   85       pin.
   86     type: boolean
   87 
   88   dsr-override:
   89     description: Override the DTS modem status signal. This signal will
   90       always be reported as active instead of being obtained from the modem
   91       status register. Define this if your serial port does not use this
   92       pin.
   93     type: boolean
   94 
   95   cts-override:
   96     description: Override the CTS modem status signal. This signal will
   97       always be reported as active instead of being obtained from the modem
   98       status register. Define this if your serial port does not use this
   99       pin.
  100     type: boolean
  101 
  102   ri-override:
  103     description: Override the RI modem status signal. This signal will always
  104       be reported as inactive instead of being obtained from the modem status
  105       register. Define this if your serial port does not use this pin.
  106     type: boolean
  107 
  108 required:
  109   - compatible
  110   - reg
  111   - interrupts
  112 
  113 unevaluatedProperties: false
  114 
  115 examples:
  116   - |
  117     serial@80230000 {
  118       compatible = "snps,dw-apb-uart";
  119       reg = <0x80230000 0x100>;
  120       clock-frequency = <3686400>;
  121       interrupts = <10>;
  122       reg-shift = <2>;
  123       reg-io-width = <4>;
  124       dcd-override;
  125       dsr-override;
  126       cts-override;
  127       ri-override;
  128     };
  129 
  130   - |
  131     // Example with one clock:
  132     serial@80230000 {
  133       compatible = "snps,dw-apb-uart";
  134       reg = <0x80230000 0x100>;
  135       clocks = <&baudclk>;
  136       interrupts = <10>;
  137       reg-shift = <2>;
  138       reg-io-width = <4>;
  139     };
  140 
  141   - |
  142     // Example with two clocks:
  143     serial@80230000 {
  144       compatible = "snps,dw-apb-uart";
  145       reg = <0x80230000 0x100>;
  146       clocks = <&baudclk>, <&apb_pclk>;
  147       clock-names = "baudclk", "apb_pclk";
  148       interrupts = <10>;
  149       reg-shift = <2>;
  150       reg-io-width = <4>;
  151     };
  152 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/serial/snps-dw-apb-uart.yaml

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sys/contrib/device-tree/Bindings/serial/snps-dw-apb-uart.yaml