From 862ceabb4690c83d02d823bc712c47451714f34a Mon Sep 17 00:00:00 2001 From: David Lechner Date: Fri, 18 May 2018 11:48:26 -0500 Subject: dt-bindings: timer: new bindings for TI DaVinci timer This adds new device tree bindings for the timer IP block of TI DaVinci-like SoCs. Reviewed-by: Rob Herring Signed-off-by: David Lechner Signed-off-by: Sekhar Nori --- .../devicetree/bindings/timer/ti,davinci-timer.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/ti,davinci-timer.txt (limited to 'Documentation/devicetree/bindings') diff --git a/Documentation/devicetree/bindings/timer/ti,davinci-timer.txt b/Documentation/devicetree/bindings/timer/ti,davinci-timer.txt new file mode 100644 index 000000000000..29bf91ccf5b7 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/ti,davinci-timer.txt @@ -0,0 +1,37 @@ +* Device tree bindings for Texas Instruments DaVinci timer + +This document provides bindings for the 64-bit timer in the DaVinci +architecture devices. The timer can be configured as a general-purpose 64-bit +timer, dual general-purpose 32-bit timers. When configured as dual 32-bit +timers, each half can operate in conjunction (chain mode) or independently +(unchained mode) of each other. + +The timer is a free running up-counter and can generate interrupts when the +counter reaches preset counter values. + +Also see ../watchdog/davinci-wdt.txt for timers that are configurable as +watchdog timers. + +Required properties: + +- compatible : should be "ti,da830-timer". +- reg : specifies base physical address and count of the registers. +- interrupts : interrupts generated by the timer. +- interrupt-names: should be "tint12", "tint34", "cmpint0", "cmpint1", + "cmpint2", "cmpint3", "cmpint4", "cmpint5", "cmpint6", + "cmpint7" ("cmpintX" may be omitted if not present in the + hardware). +- clocks : the clock feeding the timer clock. + +Example: + + clocksource: timer@20000 { + compatible = "ti,da830-timer"; + reg = <0x20000 0x1000>; + interrupts = <21>, <22>, <74>, <75>, <76>, <77>, <78>, <79>, + <80>, <81>; + interrupt-names = "tint12", "tint34", "cmpint0", "cmpint1", + "cmpint2", "cmpint3", "cmpint4", "cmpint5", + "cmpint6", "cmpint7"; + clocks = <&pll0_auxclk>; + }; -- cgit v1.2.3