4 - compatible : Should be "arm,mps2-uart"
5 - reg : Address and length of the register set
6 - interrupts : Reference to the UART RX, TX and overrun interrupts
8 Required clocking property:
9 - clocks : The input clock of the UART
14 uart0: serial@40004000 {
15 compatible = "arm,mps2-uart";
16 reg = <0x40004000 0x1000>;
17 interrupts = <0 1 12>;