forked from Minki/linux
571fc8e836
This adds documentation of device tree bindings for the ARM System timer. Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
27 lines
647 B
Plaintext
27 lines
647 B
Plaintext
* ARMv7M System Timer
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ARMv7-M includes a system timer, known as SysTick. Current driver only
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implements the clocksource feature.
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Required properties:
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- compatible : Should be "arm,armv7m-systick"
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- reg : The address range of the timer
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Required clocking property, have to be one of:
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- clocks : The input clock of the timer
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- clock-frequency : The rate in HZ in input of the ARM SysTick
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Examples:
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systick: timer@e000e010 {
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compatible = "arm,armv7m-systick";
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reg = <0xe000e010 0x10>;
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clocks = <&clk_systick>;
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};
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systick: timer@e000e010 {
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compatible = "arm,armv7m-systick";
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reg = <0xe000e010 0x10>;
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clock-frequency = <90000000>;
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};
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