[PATCH 1/3] serial/imx: add device tree support
From: arnd@arndb.de (Arnd Bergmann)
Date: 2011-06-18 16:22:08
Also in:
linux-devicetree, lkml, netdev
From: arnd@arndb.de (Arnd Bergmann)
Date: 2011-06-18 16:22:08
Also in:
linux-devicetree, lkml, netdev
On Saturday 18 June 2011 17:19:12 Shawn Guo wrote:
+Required properties:
+- compatible : should be "fsl,<soc>-uart", "fsl,imx-uart"
+- reg : address and length of the register set for the device
+- interrupts : should contain uart interrupt
+- id : should be the port ID defined by soc
+
+Optional properties:
+- fsl,has-rts-cts : indicate it has rts-cts
+- fsl,irda-mode : support irda mode
+
+Example:
+
+uart at 73fbc000 {
+ compatible = "fsl,imx51-uart", "fsl,imx-uart";
+ reg = <0x73fbc000 0x4000>;
+ interrupts = <31>;
+ id = <1>;
+ fsl,has-rts-cts;
+};Should this also support the "clock-frequency" property that 8250-style serial ports support [1]? For the flow-control properties, should we name that more generic? The same property certainly makes sense for other serial-ports if it does here. OTOH, I'm not sure it's actually reliable, because it also depends on whether the other side of the connection and the cable support hw flow control. Arnd [1] http://playground.sun.com/1275/bindings/devices/html/serial-1_0d.html#HDR9