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Documentation / devicetree / bindings / timer / brcm,bcm2835-system-timer.txt




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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:02 EST.

1	BCM2835 System Timer
2	
3	The System Timer peripheral provides four 32-bit timer channels and a
4	single 64-bit free running counter. Each channel has an output compare
5	register, which is compared against the 32 least significant bits of the
6	free running counter values, and generates an interrupt.
7	
8	Required properties:
9	
10	- compatible : should be "brcm,bcm2835-system-timer"
11	- reg : Specifies base physical address and size of the registers.
12	- interrupts : A list of 4 interrupt sinks; one per timer channel.
13	- clock-frequency : The frequency of the clock that drives the counter, in Hz.
14	
15	Example:
16	
17	timer {
18		compatible = "brcm,bcm2835-system-timer";
19		reg = <0x7e003000 0x1000>;
20		interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
21		clock-frequency = <1000000>;
22	};
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