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tty: cadence: Document DT binding

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Add binding documentation for the Cadence UART.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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Soren Brinkmann 2014-04-04 17:23:44 -07:00 committed by Michal Simek
parent 1795cd9b3a
commit db34d2b32f
1 changed files with 20 additions and 0 deletions
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Documentation/devicetree/bindings/serial/cdns,uart.txt Normal file
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Binding for Cadence UART Controller
Required properties:
- compatible : should be "cdns,uart-r1p8", or "xlnx,xuartps"
- reg: Should contain UART controller registers location and length.
- interrupts: Should contain UART controller interrupts.
- clocks: Must contain phandles to the UART clocks
See ../clocks/clock-bindings.txt for details.
- clock-names: Tuple to identify input clocks, must contain "uart_clk" and "pclk"
See ../clocks/clock-bindings.txt for details.
Example:
uart@e0000000 {
compatible = "cdns,uart-r1p8";
clocks = <&clkc 23>, <&clkc 40>;
clock-names = "uart_clk", "pclk";
reg = <0xE0000000 0x1000>;
interrupts = <0 27 4>;
};