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-rw-r--r--Documentation/devicetree/bindings/serial/fsl-imx-uart.txt22
1 files changed, 8 insertions, 14 deletions
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
index c58573b5b1a4..35ae1fb3537f 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
@@ -1,35 +1,29 @@
-* Freescale i.MX UART controller
+* Freescale i.MX Universal Asynchronous Receiver/Transmitter (UART)
Required properties:
-- compatible : should be "fsl,imx21-uart"
+- compatible : Should be "fsl,<soc>-uart"
- reg : Address and length of the register set for the device
-- interrupts : Should contain UART interrupt number
+- interrupts : Should contain uart interrupt
Optional properties:
-- fsl,uart-has-rtscts: indicate that RTS/CTS signals are used
+- fsl,uart-has-rtscts : Indicate the uart has rts and cts
+- fsl,irda-mode : Indicate the uart supports irda mode
+- fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
+ is DCE mode by default.
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";
+ fsl,dte-mode;
};
-