Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt

   1 * Freescale MXS Application UART (AUART)
   2
   3 Required properties:
   4 - compatible : Should be "fsl,<soc>-auart". The supported SoCs include
   5   imx23 and imx28.
   6 - reg : Address and length of the register set for the device
   7 - interrupts : Should contain the auart interrupt numbers
   8 - dmas: DMA specifier, consisting of a phandle to DMA controller node
   9   and AUART DMA channel ID.
  10   Refer to dma.txt and fsl-mxs-dma.txt for details.
  11 - dma-names: "rx" for RX channel, "tx" for TX channel.
  12
  13 Optional properties:
  14 - fsl,uart-has-rtscts : Indicate the UART has RTS and CTS lines,
  15         it also means you enable the DMA support for this UART.
  16
  17 Example:
  18 auart0: serial@8006a000 {
  19         compatible = "fsl,imx28-auart", "fsl,imx23-auart";
  20         reg = <0x8006a000 0x2000>;
  21         interrupts = <112>;
  22         dmas = <&dma_apbx 8>, <&dma_apbx 9>;
  23         dma-names = "rx", "tx";
  24 };
  25
  26 Note: Each auart port should have an alias correctly numbered in "aliases"
  27 node.
  28
  29 Example:
  30
  31 aliases {
  32         serial0 = &auart0;
  33         serial1 = &auart1;
  34         serial2 = &auart2;
  35         serial3 = &auart3;
  36         serial4 = &auart4;
  37 };