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, 62 insertions, 0 deletions

diff --git a/dts/Bindings/gpio/gpio-davinci.txt b/dts/Bindings/gpio/gpio-davinci.txt
new file mode 100644
index 0000000000..5079ba7d65
--- /dev/null
+++ b/dts/Bindings/gpio/gpio-davinci.txt
@@ -0,0 +1,62 @@
+Davinci/Keystone GPIO controller bindings
+
+Required Properties:
+- compatible: should be "ti,dm6441-gpio", "ti,keystone-gpio"
+
+- reg: Physical base address of the controller and the size of memory mapped
+       registers.
+
+- gpio-controller : Marks the device node as a gpio controller.
+
+- #gpio-cells : Should be two.
+  - first cell is the pin number
+  - second cell is used to specify optional parameters (unused)
+
+- interrupt-parent: phandle of the parent interrupt controller.
+
+- interrupts: Array of GPIO interrupt number. Only banked or unbanked IRQs are
+	      supported at a time.
+
+- ti,ngpio: The number of GPIO pins supported.
+
+- ti,davinci-gpio-unbanked: The number of GPIOs that have an individual interrupt
+		             line to processor.
+
+The GPIO controller also acts as an interrupt controller. It uses the default
+two cells specifier as described in Documentation/devicetree/bindings/
+interrupt-controller/interrupts.txt.
+
+Example:
+
+gpio: gpio@1e26000 {
+	compatible = "ti,dm6441-gpio";
+	gpio-controller;
+	#gpio-cells = <2>;
+	reg = <0x226000 0x1000>;
+	interrupt-parent = <&intc>;
+	interrupts = <42 IRQ_TYPE_EDGE_BOTH 43 IRQ_TYPE_EDGE_BOTH
+		44 IRQ_TYPE_EDGE_BOTH 45 IRQ_TYPE_EDGE_BOTH
+		46 IRQ_TYPE_EDGE_BOTH 47 IRQ_TYPE_EDGE_BOTH
+		48 IRQ_TYPE_EDGE_BOTH 49 IRQ_TYPE_EDGE_BOTH
+		50 IRQ_TYPE_EDGE_BOTH>;
+	ti,ngpio = <144>;
+	ti,davinci-gpio-unbanked = <0>;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+};
+
+leds {
+	compatible = "gpio-leds";
+
+	led1 {
+		label = "davinci:green:usr1";
+		gpios = <&gpio 10 GPIO_ACTIVE_HIGH>;
+		...
+	};
+
+	led2 {
+		label = "davinci:red:debug1";
+		gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
+		...
+	};
+};