Commit 571fc8e8 authored by Maxime Coquelin's avatar Maxime Coquelin Committed by Daniel Lezcano
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dt-bindings: Document the ARM System timer bindings



This adds documentation of device tree bindings for the
ARM System timer.
Tested-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMaxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent 5fc9b49d
* ARMv7M System Timer
ARMv7-M includes a system timer, known as SysTick. Current driver only
implements the clocksource feature.
Required properties:
- compatible : Should be "arm,armv7m-systick"
- reg : The address range of the timer
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 SysTick
Examples:
systick: timer@e000e010 {
compatible = "arm,armv7m-systick";
reg = <0xe000e010 0x10>;
clocks = <&clk_systick>;
};
systick: timer@e000e010 {
compatible = "arm,armv7m-systick";
reg = <0xe000e010 0x10>;
clock-frequency = <90000000>;
};
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