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Diffstat (limited to 'Documentation/devicetree/bindings/timer')
3 files changed, 59 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/timer/snps,arc-timer.txt b/Documentation/devicetree/bindings/timer/snps,arc-timer.txt new file mode 100644 index 000000000000..4ef024630d61 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/snps,arc-timer.txt @@ -0,0 +1,31 @@ +Synopsys ARC Local Timer with Interrupt Capabilities +- Found on all ARC CPUs (ARC700/ARCHS) +- Can be optionally programmed to interrupt on Limit +- Two idential copies TIMER0 and TIMER1 exist in ARC cores and historically + TIMER0 used as clockevent provider (true for all ARC cores) + TIMER1 used for clocksource (mandatory for ARC700, optional for ARC HS) + +Required properties: + +- compatible : should be "snps,arc-timer" +- interrupts : single Interrupt going into parent intc + (16 for ARCHS cores, 3 for ARC700 cores) +- clocks : phandle to the source clock + +Optional properties: + +- interrupt-parent : phandle to parent intc + +Example: + + timer0 { + compatible = "snps,arc-timer"; + interrupts = <3>; + interrupt-parent = <&core_intc>; + clocks = <&core_clk>; + }; + + timer1 { + compatible = "snps,arc-timer"; + clocks = <&core_clk>; + }; diff --git a/Documentation/devicetree/bindings/timer/snps,archs-gfrc.txt b/Documentation/devicetree/bindings/timer/snps,archs-gfrc.txt new file mode 100644 index 000000000000..b6cd1b3922de --- /dev/null +++ b/Documentation/devicetree/bindings/timer/snps,archs-gfrc.txt @@ -0,0 +1,14 @@ +Synopsys ARC Free Running 64-bit Global Timer for ARC HS CPUs +- clocksource provider for SMP SoC + +Required properties: + +- compatible : should be "snps,archs-gfrc" +- clocks : phandle to the source clock + +Example: + + gfrc { + compatible = "snps,archs-gfrc"; + clocks = <&core_clk>; + }; diff --git a/Documentation/devicetree/bindings/timer/snps,archs-rtc.txt b/Documentation/devicetree/bindings/timer/snps,archs-rtc.txt new file mode 100644 index 000000000000..47bd7a702f3f --- /dev/null +++ b/Documentation/devicetree/bindings/timer/snps,archs-rtc.txt @@ -0,0 +1,14 @@ +Synopsys ARC Free Running 64-bit Local Timer for ARC HS CPUs +- clocksource provider for UP SoC + +Required properties: + +- compatible : should be "snps,archs-rtc" +- clocks : phandle to the source clock + +Example: + + rtc { + compatible = "snps,arc-rtc"; + clocks = <&core_clk>; + }; |