xref: /freebsd/sys/contrib/device-tree/Bindings/timer/ti,timer.txt (revision 643ac419fafba89f5adda0e0ea75b538727453fb)
1OMAP Timer bindings
2
3Required properties:
4- compatible:		Should be set to one of the below. Please note that
5			OMAP44xx devices have timer instances that are 100%
6			register compatible with OMAP3xxx devices as well as
7			newer timers that are not 100% register compatible.
8			So for OMAP44xx devices timer instances may use
9			different compatible strings.
10
11			ti,omap2420-timer (applicable to OMAP24xx devices)
12			ti,omap3430-timer (applicable to OMAP3xxx/44xx devices)
13			ti,omap4430-timer (applicable to OMAP44xx devices)
14			ti,omap5430-timer (applicable to OMAP543x devices)
15			ti,am335x-timer	(applicable to AM335x devices)
16			ti,am335x-timer-1ms (applicable to AM335x devices)
17
18- reg:			Contains timer register address range (base address and
19			length).
20- interrupts: 		Contains the interrupt information for the timer. The
21			format is being dependent on which interrupt controller
22			the OMAP device uses.
23- ti,hwmods:		Name of the hwmod associated to the timer, "timer<X>",
24			where <X> is the instance number of the timer from the
25			HW spec.
26
27Optional properties:
28- ti,timer-alwon:	Indicates the timer is in an alway-on power domain.
29- ti,timer-dsp:		Indicates the timer can interrupt the on-chip DSP in
30			addition to the ARM CPU.
31- ti,timer-pwm: 	Indicates the timer can generate a PWM output.
32- ti,timer-secure: 	Indicates the timer is reserved on a secure OMAP device
33			and therefore cannot be used by the kernel.
34
35Example:
36
37timer12: timer@48304000 {
38	compatible = "ti,omap3430-timer";
39	reg = <0x48304000 0x400>;
40	interrupts = <95>;
41	ti,hwmods = "timer12"
42	ti,timer-alwon;
43	ti,timer-secure;
44};
45