xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/serial/rockchip_uart.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1* Universal Asynchronous Receiver/Transmitter (UART)
2
3- compatible: "rockchip,rk_serial"
4
5  Compatibility with all rk28xx rk29xx rk30xx rk31xx SOCs.
6
7- reg: The base address of the UART register bank.
8
9- interrupts: A single interrupt specifier.
10
11- id: port line, determine the ttySx
12
13- use-dma-rx: enable dma receive
14
15- use-dma-tx: enable dma tramsmit
16
17Example:
18uart0: serial@10124000 {
19		compatible = "rockchip,rk_serial";
20		reg = <0x10124000 0x100>;
21		interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
22		clock-frequency = <24000000>;
23		id = <0>;
24		use-dma-rx;
25		use-dma-tx;
26		status = "disabled";
27	};
28