| Message ID | 1428080481-18591-4-git-send-email-mcoquelin.stm32@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Apr 3, 2015 at 12:01 PM, Maxime Coquelin <mcoquelin.stm32@gmail.com> wrote: > This adds documentation of device tree bindings for the > ARM System timer. > > Tested-by: Chanwoo Choi <cw00.choi@samsung.com> > Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Acked-by: Rob Herring <robh@kernel.org> > --- > .../devicetree/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 0000000..7cf4a24 > --- /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>; > +}; > -- > 1.9.1 >
diff --git a/Documentation/devicetree/bindings/arm/armv7m_systick.txt b/Documentation/devicetree/bindings/arm/armv7m_systick.txt new file mode 100644 index 0000000..7cf4a24 --- /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>; +};