Documentation/devicetree/bindings/serial/altera_uart.txt - third_party/linux - Git at Google

 Altera UART

 Required properties:
 - compatible : should be "ALTR,uart-1.0" <DEPRECATED>
 - compatible : should be "altr,uart-1.0"

 Optional properties:
 - clock-frequency : frequency of the clock input to the UART
	Altera UART

	Required properties:
	- compatible : should be "ALTR,uart-1.0" <DEPRECATED>
	- compatible : should be "altr,uart-1.0"

	Optional properties:
	- clock-frequency : frequency of the clock input to the UART