[RFC 2/5] ARM: dts: Add Cross Trigger Interface binding
From: Rob Herring <hidden>
Date: 2012-12-12 22:12:35
Also in:
linux-devicetree, linux-omap
On 12/12/2012 03:43 PM, 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.
Do you need to describe the PMU-CTI-GIC connection in DT? Rob
quoted hunk ↗ jump to hunk
Signed-off-by: Jon Hunter <redacted> --- Documentation/devicetree/bindings/arm/cti.txt | 32 +++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/cti.txtdiff --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. + + +Example: + +cti0: cti at 0x54148000 { + compatible = "arm,primecell"; + interrupts = <0 1 0x4>; + reg = <0x54148000 0x1000>; + arm,cti-name = "cti0"; + arm,primecell-periphid = <0x003bb906>; +};