1* BCM283x mini UART 2 3Required properties: 4- compatible: must be "brcm,bcm2835-aux-uart" 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