From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- .../devicetree/bindings/timer/snps,arc-timer.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/snps,arc-timer.txt (limited to 'Documentation/devicetree/bindings/timer/snps,arc-timer.txt') 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 000000000..147ef3e74 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/snps,arc-timer.txt @@ -0,0 +1,27 @@ +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 + +Example: + + timer0 { + compatible = "snps,arc-timer"; + interrupts = <3>; + interrupt-parent = <&core_intc>; + clocks = <&core_clk>; + }; + + timer1 { + compatible = "snps,arc-timer"; + clocks = <&core_clk>; + }; -- cgit v1.2.3