xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/serial/cdns,uart.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunBinding for Cadence UART Controller
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun- compatible :
5*4882a593Smuzhiyun  Use "xlnx,xuartps","cdns,uart-r1p8" for Zynq-7xxx SoC.
6*4882a593Smuzhiyun  Use "xlnx,zynqmp-uart","cdns,uart-r1p12" for Zynq Ultrascale+ MPSoC.
7*4882a593Smuzhiyun- reg: Should contain UART controller registers location and length.
8*4882a593Smuzhiyun- interrupts: Should contain UART controller interrupts.
9*4882a593Smuzhiyun- clocks: Must contain phandles to the UART clocks
10*4882a593Smuzhiyun  See ../clocks/clock-bindings.txt for details.
11*4882a593Smuzhiyun- clock-names: Tuple to identify input clocks, must contain "uart_clk" and "pclk"
12*4882a593Smuzhiyun  See ../clocks/clock-bindings.txt for details.
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunOptional properties:
16*4882a593Smuzhiyun- cts-override : Override the CTS modem status signal. This signal will
17*4882a593Smuzhiyun  always be reported as active instead of being obtained from the modem status
18*4882a593Smuzhiyun  register. Define this if your serial port does not use this pin
19*4882a593Smuzhiyun
20*4882a593SmuzhiyunExample:
21*4882a593Smuzhiyun	uart@e0000000 {
22*4882a593Smuzhiyun		compatible = "cdns,uart-r1p8";
23*4882a593Smuzhiyun		clocks = <&clkc 23>, <&clkc 40>;
24*4882a593Smuzhiyun		clock-names = "uart_clk", "pclk";
25*4882a593Smuzhiyun		reg = <0xE0000000 0x1000>;
26*4882a593Smuzhiyun		interrupts = <0 27 4>;
27*4882a593Smuzhiyun	};
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