Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.txt

   1 NVIDIA Tegra20/Tegra30 high speed (DMA based) UART controller driver.
   2
   3 Required properties:
   4 - compatible : should be "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart".
   5 - reg: Should contain UART controller registers location and length.
   6 - interrupts: Should contain UART controller interrupts.
   7 - clocks: Must contain one entry, for the module clock.
   8   See ../clocks/clock-bindings.txt for details.
   9 - resets : Must contain an entry for each entry in reset-names.
  10   See ../reset/reset.txt for details.
  11 - reset-names : Must include the following entries:
  12   - serial
  13 - dmas : Must contain an entry for each entry in dma-names.
  14   See ../dma/dma.txt for details.
  15 - dma-names : Must include the following entries:
  16   - rx
  17   - tx
  18
  19 Optional properties:
  20 - nvidia,enable-modem-interrupt: Enable modem interrupts. Should be enable
  21                 only if all 8 lines of UART controller are pinmuxed.
  22
  23 Example:
  24
  25 serial@70006000 {
  26         compatible = "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart";
  27         reg = <0x70006000 0x40>;
  28         reg-shift = <2>;
  29         interrupts = <0 36 0x04>;
  30         nvidia,enable-modem-interrupt;
  31         clocks = <&tegra_car 6>;
  32         resets = <&tegra_car 6>;
  33         reset-names = "serial";
  34         dmas = <&apbdma 8>, <&apbdma 8>;
  35         dma-names = "rx", "tx";
  36         status = "disabled";
  37 };