Add devicetree source files as of Linux-3.15-rc2

This adds the Linux dts files to barebox. The dts files are
generated from Ian Campbells device-tree-rebasing.git:

git://xenbits.xen.org/people/ianc/device-tree-rebasing.git

The dts are found in dts/ in the barebox repository and
will be updated from upstream regularly, probably for each upstream
-rc.

To keep the synchronization with upstream easy no changes to
the original files are allowed under dts/. Instead changes to
upstream dts files will be done using overlays in arch/$ARCH/dts/.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

2 files changed, 48 insertions, 0 deletions

diff --git a/dts/Bindings/arc/interrupts.txt b/dts/Bindings/arc/interrupts.txt
new file mode 100644
index 0000000000..9a5d562435
--- /dev/null
+++ b/dts/Bindings/arc/interrupts.txt
@@ -0,0 +1,24 @@
+* ARC700 incore Interrupt Controller
+
+  The core interrupt controller provides 32 prioritised interrupts (2 levels)
+  to ARC700 core.
+
+Properties:
+
+- compatible: "snps,arc700-intc"
+- interrupt-controller: This is an interrupt controller.
+- #interrupt-cells: Must be <1>.
+
+  Single Cell "interrupts" property of a device specifies the IRQ number
+  between 0 to 31
+
+  intc accessed via the special ARC AUX register interface, hence "reg" property
+  is not specified.
+
+Example:
+
+	intc: interrupt-controller {
+		compatible = "snps,arc700-intc";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
diff --git a/dts/Bindings/arc/pmu.txt b/dts/Bindings/arc/pmu.txt
new file mode 100644
index 0000000000..49d517340d
--- /dev/null
+++ b/dts/Bindings/arc/pmu.txt
@@ -0,0 +1,24 @@
+* ARC Performance Monitor Unit
+
+The ARC 700 can be configured with a pipeline performance monitor for counting
+CPU and cache events like cache misses and hits.
+
+Note that:
+ * ARC 700 refers to a family of ARC processor cores;
+   - There is only one type of PMU available for the whole family;
+   - The PMU may support different sets of events; supported events are probed
+     at boot time, as required by the reference manual.
+
+ * The ARC 700 PMU does not support interrupts; although HW events may be
+   counted, the HW events themselves cannot serve as a trigger for a sample.
+
+Required properties:
+
+- compatible : should contain
+	"snps,arc700-pmu"
+
+Example:
+
+pmu {
+        compatible = "snps,arc700-pmu";
+};