1 * CSR SiRFprimaII/atlasVI Universal Synchronous Asynchronous Receiver/Transmitter *
4 - compatible : Should be "sirf,prima2-uart", "sirf, prima2-usp-uart",
5 "sirf,atlas7-uart" or "sirf,atlas7-bt-uart" which means
6 uart located in BT module and used for BT.
7 - reg : Offset and length of the register set for the device
8 - interrupts : Should contain uart interrupt
9 - fifosize : Should define hardware rx/tx fifo size
10 - clocks : Should contain uart clock number
13 - sirf,uart-has-rtscts: we have hardware flow controller pins in hardware
14 - rts-gpios: RTS pin for USP-based UART if sirf,uart-has-rtscts is true
15 - cts-gpios: CTS pin for USP-based UART if sirf,uart-has-rtscts is true
19 uart0: uart@b0050000 {
21 compatible = "sirf,prima2-uart";
22 reg = <0xb0050000 0x1000>;
28 On the board-specific dts, we can put rts-gpios and cts-gpios like
31 compatible = "sirf,prima2-usp-uart";
33 rts-gpios = <&gpio 15 0>;
34 cts-gpios = <&gpio 46 0>;
37 for uart use in BT module,
38 uart6: uart@11000000 {
40 compatible = "sirf,atlas7-bt-uart", "sirf,atlas7-uart";
41 reg = <0x11000000 0x1000>;
42 interrupts = <0 100 0>;
43 clocks = <&clks 138>, <&clks 140>, <&clks 141>;
44 clock-names = "uart", "general", "noc";