1* ARM AMBA Primecell PL011 & PL010 serial UART
2
3Required properties:
4- compatible: must be "arm,primecell", "arm,pl011" or "arm,pl010"
5- reg: exactly one register range with length 0x1000
6- clock: input clock frequency for the UART (used to calculate the baud
7  rate divisor)
8
9Optional properties:
10- skip-init: if present, the baud rate divisor is not changed
11