xref: /freebsd/sys/contrib/device-tree/Bindings/serial/vt8500-uart.txt (revision 1d386b48a555f61cb7325543adbbb5c3f3407a66)
1* VIA VT8500 and WonderMedia WM8xxx UART Controller
2
3Required properties:
4- compatible: should be "via,vt8500-uart" (for VIA/WonderMedia chips up to and
5	including WM8850/WM8950), or "wm,wm8880-uart" (for WM8880 and later)
6
7- reg: base physical address of the controller and length of memory mapped
8	region.
9
10- interrupts: hardware interrupt number
11
12- clocks: shall be the input parent clock phandle for the clock. This should
13	be the 24Mhz reference clock.
14
15Aliases may be defined to ensure the correct ordering of the uarts.
16
17Example:
18	aliases {
19		serial0 = &uart0;
20	};
21
22	uart0: serial@d8200000 {
23		compatible = "via,vt8500-uart";
24		reg = <0xd8200000 0x1040>;
25		interrupts = <32>;
26		clocks = <&clkuart0>;
27	};
28