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Diffstat (limited to 'Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt | 25 |
1 files changed, 25 insertions, 0 deletions
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 000000000000..d57659996d62 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt @@ -0,0 +1,25 @@ +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. The compare frame inside can be used for timer purpose. + +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 first compare frames' interrupt +- clocks : Specifies the counter clock. +- clock-names: Specifies the clock's name of this module + +Example: + + system_counter: timer@306a0000 { + compatible = "nxp,sysctr-timer"; + reg = <0x306a0000 0x20000>;/* system-counter-rd & compare */ + clocks = <&clk_8m>; + clock-names = "per"; + interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>; + }; |