Messages in this thread Patch in this message | | | From | Jacky Bai <> | Subject | [PATCH 1/2] Doc: bindings: Add binding doc for nxp system counter timer | Date | Fri, 9 Nov 2018 10:43:05 +0000 |
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Add the binding doc for nxp system counter timer module.
Signed-off-by: Bai Ping <ping.bai@nxp.com> --- .../devicetree/bindings/timer/nxp,sysctr_timer.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt
diff --git a/Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt b/Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt new file mode 100644 index 0000000..6c0aeed --- /dev/null +++ b/Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt @@ -0,0 +1,28 @@ +NXP System Counter Module(sys_ctr) + +The system counter(sys_ctr) is a programmable system counter which provides +a shared time base to Cortex A15, A7, A53, A73, etc. it is intended for use in +applications where the counter is always powered and support multiple, +unrelated clocks. + +Required properties: + +- compatible : should be "nxp,sysctr-timer" +- reg : Specifies the base physical address and size of the comapre + frame and the counter control, read & compare. +- interrupts : should be the compare frames' interrupt +- clock-frequency : Specifies the counter clock frequency. + +Example: + + system_counter: timer@306a0000 { + compatible = "nxp,sysctr-timer"; + reg = <0x0 0x306a0000 0x0 0x10000>, /* system-counter-rd base */ + <0x0 0x306b0000 0x0 0x10000>, /* system-counter-cmp base */ + <0x0 0x306c0000 0x0 0x10000>; /* system-counter-ctrl base */ + clock-frequency = <8000000>; + interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; + }; + + -- 1.9.1
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