| *st-asc(Serial Port) | 
 |  | 
 | Required properties: | 
 | - compatible : Should be "st,asc". | 
 | - reg, reg-names, interrupts, interrupt-names	: Standard way to define device | 
 | 			resources with names. look in | 
 | 			Documentation/devicetree/bindings/resource-names.txt | 
 |  | 
 | Optional properties: | 
 | - st,hw-flow-ctrl	bool flag to enable hardware flow control. | 
 | - st,force-m1		bool flat to force asc to be in Mode-1 recommeded | 
 | 			for high bit rates (above 19.2K) | 
 | Example: | 
 | serial@fe440000{ | 
 |     compatible    = "st,asc"; | 
 |     reg         = <0xfe440000 0x2c>; | 
 |     interrupts     =  <0 209 0>; | 
 | }; |