From 571fc8e836a1537b87804358c7baa9882d25b754 Mon Sep 17 00:00:00 2001 From: Maxime Coquelin Date: Sat, 9 May 2015 09:53:45 +0200 Subject: [PATCH] dt-bindings: Document the ARM System timer bindings This adds documentation of device tree bindings for the ARM System timer. Tested-by: Chanwoo Choi Acked-by: Rob Herring Signed-off-by: Maxime Coquelin Signed-off-by: Daniel Lezcano --- .../bindings/arm/armv7m_systick.txt | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/armv7m_systick.txt diff --git a/Documentation/devicetree/bindings/arm/armv7m_systick.txt b/Documentation/devicetree/bindings/arm/armv7m_systick.txt new file mode 100644 index 000000000000..7cf4a24601eb --- /dev/null +++ b/Documentation/devicetree/bindings/arm/armv7m_systick.txt @@ -0,0 +1,26 @@ +* 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>; +}; -- 2.20.1