dt-bindings: document the MPS2 timer bindings

This adds documentation of device tree bindings for the
timers found on ARM MPS2 platform.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Vladimir Murzin 2016-04-25 09:45:43 +01:00 committed by Daniel Lezcano
parent d98eddf849
commit 96669fa43c

View file

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ARM MPS2 timer
The MPS2 platform has simple general-purpose 32 bits timers.
Required properties:
- compatible : Should be "arm,mps2-timer"
- reg : Address and length of the register set
- interrupts : Reference to the timer interrupt
Required clocking property, have to be one of:
- clocks : The input clock of the timer
- clock-frequency : The rate in HZ in input of the ARM MPS2 timer
Examples:
timer1: mps2-timer@40000000 {
compatible = "arm,mps2-timer";
reg = <0x40000000 0x1000>;
interrupts = <8>;
clocks = <&sysclk>;
};
timer2: mps2-timer@40001000 {
compatible = "arm,mps2-timer";
reg = <0x40001000 0x1000>;
interrupts = <9>;
clock-frequency = <25000000>;
};