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>

1 files changed, 29 insertions, 0 deletions

diff --git a/dts/Bindings/pwm/pwm-tiehrpwm.txt b/dts/Bindings/pwm/pwm-tiehrpwm.txt
new file mode 100644
index 0000000000..9c100b2c5b
--- /dev/null
+++ b/dts/Bindings/pwm/pwm-tiehrpwm.txt
@@ -0,0 +1,29 @@
+TI SOC EHRPWM based PWM controller
+
+Required properties:
+- compatible: Must be "ti,<soc>-ehrpwm".
+  for am33xx - compatible = "ti,am33xx-ehrpwm";
+  for da850  - compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
+  the cells format. The only third cell flag supported by this binding is
+  PWM_POLARITY_INVERTED.
+- reg: physical base address and size of the registers map.
+
+Optional properties:
+- ti,hwmods: Name of the hwmod associated to the EHRPWM:
+  "ehrpwm<x>", <x> being the 0-based instance number from the HW spec
+
+Example:
+
+ehrpwm0: ehrpwm@0 { /* EHRPWM on am33xx */
+	compatible = "ti,am33xx-ehrpwm";
+	#pwm-cells = <3>;
+	reg = <0x48300200 0x100>;
+	ti,hwmods = "ehrpwm0";
+};
+
+ehrpwm0: ehrpwm@0 { /* EHRPWM on da850 */
+	compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+	#pwm-cells = <3>;
+	reg = <0x300000 0x2000>;
+};