xref: /freebsd/sys/contrib/device-tree/Bindings/serial/vt8500-uart.txt (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
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