1* ARM AMBA Primecell PL011 serial UART 2 3Required properties: 4- compatible: must be "arm,primecell", "arm,pl011" 5- reg: exactly one register range with length 0x1000 6- interrupts: exactly one interrupt specifier 7 8Optional properties: 9- pinctrl: When present, must have one state named "sleep" 10 and one state named "default" 11- clocks: When present, must refer to exactly one clock named 12 "apb_pclk" 13- dmas: When present, may have one or two dma channels. 14 The first one must be named "rx", the second one 15 must be named "tx". 16 17See also bindings/arm/primecell.txt 18