Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / arm / omap / timer.txt

diff --git a/kernel/Documentation/devicetree/bindings/arm/omap/timer.txt b/kernel/Documentation/devicetree/bindings/arm/omap/timer.txt
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+OMAP Timer bindings
+
+Required properties:
+- compatible:          Should be set to one of the below. Please note that
+                       OMAP44xx devices have timer instances that are 100%
+                       register compatible with OMAP3xxx devices as well as
+                       newer timers that are not 100% register compatible.
+                       So for OMAP44xx devices timer instances may use
+                       different compatible strings.
+
+                       ti,omap2420-timer (applicable to OMAP24xx devices)
+                       ti,omap3430-timer (applicable to OMAP3xxx/44xx devices)
+                       ti,omap4430-timer (applicable to OMAP44xx devices)
+                       ti,omap5430-timer (applicable to OMAP543x devices)
+                       ti,am335x-timer (applicable to AM335x devices)
+                       ti,am335x-timer-1ms (applicable to AM335x devices)
+
+- reg:                 Contains timer register address range (base address and
+                       length).
+- interrupts:          Contains the interrupt information for the timer. The
+                       format is being dependent on which interrupt controller
+                       the OMAP device uses.
+- ti,hwmods:           Name of the hwmod associated to the timer, "timer<X>",
+                       where <X> is the instance number of the timer from the
+                       HW spec.
+
+Optional properties:
+- ti,timer-alwon:      Indicates the timer is in an alway-on power domain.
+- ti,timer-dsp:                Indicates the timer can interrupt the on-chip DSP in
+                       addition to the ARM CPU.
+- ti,timer-pwm:        Indicates the timer can generate a PWM output.
+- ti,timer-secure:     Indicates the timer is reserved on a secure OMAP device
+                       and therefore cannot be used by the kernel.
+
+Example:
+
+timer12: timer@48304000 {
+       compatible = "ti,omap3430-timer";
+       reg = <0x48304000 0x400>;
+       interrupts = <95>;
+       ti,hwmods = "timer12"
+       ti,timer-alwon;
+       ti,timer-secure;
+};