1* Cirrus Logic CLPS711X Universal Asynchronous Receiver/Transmitter (UART) 2 3Required properties: 4- compatible: Should be "cirrus,ep7209-uart". 5- reg: Address and length of the register set for the device. 6- interrupts: Should contain UART TX and RX interrupt. 7- clocks: Should contain UART core clock number. 8- syscon: Phandle to SYSCON node, which contain UART control bits. 9 10Optional properties: 11- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD 12 line respectively. 13 14Note: Each UART port should have an alias correctly numbered 15in "aliases" node. 16 17Example: 18 aliases { 19 serial0 = &uart1; 20 }; 21 22 uart1: uart@80000480 { 23 compatible = "cirrus,ep7312-uart","cirrus,ep7209-uart"; 24 reg = <0x80000480 0x80>; 25 interrupts = <12 13>; 26 clocks = <&clks 11>; 27 syscon = <&syscon1>; 28 cts-gpios = <&sysgpio 0 GPIO_ACTIVE_LOW>; 29 dsr-gpios = <&sysgpio 1 GPIO_ACTIVE_LOW>; 30 dcd-gpios = <&sysgpio 2 GPIO_ACTIVE_LOW>; 31 }; 32