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authorJoachim Eastwood <manabian@gmail.com>2015-05-31 00:14:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-06-01 00:56:33 +0300
commita7a215283703231bcde0740710569f6c0e39ac53 (patch)
tree608a4834c9fba29d0c96c0087751a381f78bf307 /Documentation/devicetree/bindings/serial
parentd2aef35a5cc543292dae7130734c390f2a251f73 (diff)
downloadlinux-a7a215283703231bcde0740710569f6c0e39ac53.tar.xz
doc: dt: add documentation for nxp,lpc1850-uart
Add device tree binding documentation for nxp,lpc1850-uart. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
-rw-r--r--Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt28
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diff --git a/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt b/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt
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+* NXP LPC1850 UART
+
+Required properties:
+- compatible : "nxp,lpc1850-uart", "ns16550a".
+- reg : offset and length of the register set for the device.
+- interrupts : should contain uart interrupt.
+- clocks : phandle to the input clocks.
+- clock-names : required elements: "uartclk", "reg".
+
+Optional properties:
+- dmas : Two or more DMA channel specifiers following the
+ convention outlined in bindings/dma/dma.txt
+- dma-names : Names for the dma channels, if present. There must
+ be at least one channel named "tx" for transmit
+ and named "rx" for receive.
+
+Since it's also possible to also use the of_serial.c driver all
+parameters from 8250.txt also apply but are optional.
+
+Example:
+uart0: serial@40081000 {
+ compatible = "nxp,lpc1850-uart", "ns16550a";
+ reg = <0x40081000 0x1000>;
+ reg-shift = <2>;
+ interrupts = <24>;
+ clocks = <&ccu2 CLK_APB0_UART0>, <&ccu1 CLK_CPU_UART0>;
+ clock-names = "uartclk", "reg";
+};