xref: /freebsd/sys/contrib/device-tree/Bindings/timer/andestech,atcpit100-timer.txt (revision af23369a6deaaeb612ab266eb88b8bb8d560c322)
1Andestech ATCPIT100 timer
2------------------------------------------------------------------
3ATCPIT100 is a generic IP block from Andes Technology, embedded in
4Andestech AE3XX platforms and other designs.
5
6This timer is a set of compact multi-function timers, which can be
7used as pulse width modulators (PWM) as well as simple timers.
8
9It supports up to 4 PIT channels. Each PIT channel is a
10multi-function timer and provide the following usage scenarios:
11One 32-bit timer
12Two 16-bit timers
13Four 8-bit timers
14One 16-bit PWM
15One 16-bit timer and one 8-bit PWM
16Two 8-bit timer and one 8-bit PWM
17
18Required properties:
19- compatible	: Should be "andestech,atcpit100"
20- reg		: Address and length of the register set
21- interrupts	: Reference to the timer interrupt
22- clocks 	: a clock to provide the tick rate for "andestech,atcpit100"
23- clock-names 	: should be "PCLK" for the peripheral clock source.
24
25Examples:
26
27timer0: timer@f0400000 {
28	compatible = "andestech,atcpit100";
29	reg = <0xf0400000 0x1000>;
30	interrupts = <2>;
31	clocks = <&apb>;
32	clock-names = "PCLK";
33};
34