From a7a215283703231bcde0740710569f6c0e39ac53 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 30 May 2015 23:14:45 +0200 Subject: [PATCH] doc: dt: add documentation for nxp,lpc1850-uart Add device tree binding documentation for nxp,lpc1850-uart. Signed-off-by: Joachim Eastwood Signed-off-by: Greg Kroah-Hartman --- .../bindings/serial/nxp,lpc1850-uart.txt | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt diff --git a/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt b/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt new file mode 100644 index 000000000000..04e23e63ee4f --- /dev/null +++ b/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt @@ -0,0 +1,28 @@ +* 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"; +}; -- 2.20.1