xref: /freebsd/sys/contrib/device-tree/Bindings/serial/cdns,uart.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1Binding for Cadence UART Controller
2
3Required properties:
4- compatible :
5  Use "xlnx,xuartps","cdns,uart-r1p8" for Zynq-7xxx SoC.
6  Use "xlnx,zynqmp-uart","cdns,uart-r1p12" for Zynq Ultrascale+ MPSoC.
7- reg: Should contain UART controller registers location and length.
8- interrupts: Should contain UART controller interrupts.
9- clocks: Must contain phandles to the UART clocks
10  See ../clocks/clock-bindings.txt for details.
11- clock-names: Tuple to identify input clocks, must contain "uart_clk" and "pclk"
12  See ../clocks/clock-bindings.txt for details.
13
14
15Optional properties:
16- cts-override : Override the CTS modem status signal. This signal will
17  always be reported as active instead of being obtained from the modem status
18  register. Define this if your serial port does not use this pin
19
20Example:
21	uart@e0000000 {
22		compatible = "cdns,uart-r1p8";
23		clocks = <&clkc 23>, <&clkc 40>;
24		clock-names = "uart_clk", "pclk";
25		reg = <0xE0000000 0x1000>;
26		interrupts = <0 27 4>;
27	};
28