On 12/13/2012 11:41 AM, Will Deacon wrote: > On Wed, Dec 12, 2012 at 09:43:05PM +0000, Jon Hunter wrote: >> Adds a device-tree binding for the ARM Cross Trigger Interface (CTI). >> The ARM Cross Trigger Interface provides a way to route events between >> processor modules. For example, on OMAP4430 we use the CTI module to >> route PMU events to the GIC interrupt module. >> >> Signed-off-by: Jon Hunter <jon-hunter@xxxxxx> >> --- >> Documentation/devicetree/bindings/arm/cti.txt | 32 +++++++++++++++++++++++++ >> 1 file changed, 32 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/arm/cti.txt >> >> diff --git a/Documentation/devicetree/bindings/arm/cti.txt b/Documentation/devicetree/bindings/arm/cti.txt >> new file mode 100644 >> index 0000000..4a0e2d3 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/arm/cti.txt >> @@ -0,0 +1,32 @@ >> +* ARM Cross Trigger Interface (CTI) >> + >> +The ARM Cross Trigger Interface provides a way to route events between >> +processor modules. For example, debug events from one processor can be >> +broadcasted to other processors. The events that can be routed between >> +processors are specific to the device. >> + >> +Required properties: >> + >> +- compatible: Should be "arm,primecell". >> +- interrupts: Interrupt associated with CTI module. >> +- reg: Contains timer register address range (base >> + address and length). >> +- arm,cti-name: A unique name for the CTI module, that will be >> + used when requesting the CTI module instance. >> + >> + >> +Optional properties: >> + >> +- arm-primecell-periphid: Primecell peripheral ID associated with CTI >> + module. > > For multi-cluster systems, I wouldn't be surprised to see multiple CTI > instances, each with different CPU affinities. Can we include an affinity > property following Mark's proposed binding? > > http://lists.infradead.org/pipermail/linux-arm-kernel/2012-December/137290.html Yes I can take a look. Would something like that be applicable to pmu as well or is that unlikely to have different affinities? I am just wondering if there is something that we should implement in general for the various primecell components. Cheers Jon -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
