UniPhier UART controller Required properties: - compatible: should be "socionext,uniphier-uart". - reg: offset and length of the register set for the device. - interrupts: a single interrupt specifier. - clocks: phandle to the input clock. Optional properties: - fifo-size: the RX/TX FIFO size. Defaults to 64 if not specified. Example: aliases { serial0 = &serial0; }; serial0: serial@54006800 { compatible = "socionext,uniphier-uart"; reg = <0x54006800 0x40>; interrupts = <0 33 4>; clocks = <&uart_clk>; fifo-size = <64>; };