From 239078da17ee68c275e87cf9a7f849b227706966 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 21 Aug 2012 14:04:59 -0300 Subject: devicetree: serial: Add documentation for imx serial Add documentation for imx serial. Signed-off-by: Fabio Estevam Signed-off-by: Rob Herring --- .../devicetree/bindings/serial/fsl-imx-uart.txt | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/fsl-imx-uart.txt diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt new file mode 100644 index 000000000000..c58573b5b1a4 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt @@ -0,0 +1,35 @@ +* Freescale i.MX UART controller + +Required properties: +- compatible : should be "fsl,imx21-uart" +- reg : Address and length of the register set for the device +- interrupts : Should contain UART interrupt number + +Optional properties: +- fsl,uart-has-rtscts: indicate that RTS/CTS signals are used + +Note: Each uart controller should have an alias correctly numbered +in "aliases" node. + +Example: + +- From imx51.dtsi: +aliases { + serial0 = &uart1; + serial1 = &uart2; + serial2 = &uart3; +}; + +uart1: serial@73fbc000 { + compatible = "fsl,imx51-uart", "fsl,imx21-uart"; + reg = <0x73fbc000 0x4000>; + interrupts = <31>; + status = "disabled"; +} + +- From imx51-babbage.dts: +uart1: serial@73fbc000 { + fsl,uart-has-rtscts; + status = "okay"; +}; + -- cgit v1.2.3