* BCM2835 AUXILIAR UART Required properties: - compatible: "brcm,bcm2835-aux-uart" - reg: The base address of the UART register bank. - interrupts: A single interrupt specifier. - clocks: Clock driving the hardware; used to figure out the baud rate divisor. Example: uart1: serial@7e215040 { compatible = "brcm,bcm2835-aux-uart"; reg = <0x7e215040 0x40>; interrupts = <1 29>; clocks = <&aux BCM2835_AUX_CLOCK_UART>; };