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>

5 files changed, 264 insertions, 0 deletions

diff --git a/dts/Bindings/iio/adc/at91_adc.txt b/dts/Bindings/iio/adc/at91_adc.txt
new file mode 100644
index 0000000000..0f813dec5e
--- /dev/null
+++ b/dts/Bindings/iio/adc/at91_adc.txt
@@ -0,0 +1,87 @@
+* AT91's Analog to Digital Converter (ADC)
+
+Required properties:
+  - compatible: Should be "atmel,<chip>-adc"
+    <chip> can be "at91sam9260", "at91sam9g45" or "at91sam9x5"
+  - reg: Should contain ADC registers location and length
+  - interrupts: Should contain the IRQ line for the ADC
+  - clock-names: tuple listing input clock names.
+	Required elements: "adc_clk", "adc_op_clk".
+  - clocks: phandles to input clocks.
+  - atmel,adc-channels-used: Bitmask of the channels muxed and enabled for this
+    device
+  - atmel,adc-startup-time: Startup Time of the ADC in microseconds as
+    defined in the datasheet
+  - atmel,adc-vref: Reference voltage in millivolts for the conversions
+  - atmel,adc-res: List of resolutions in bits supported by the ADC. List size
+		   must be two at least.
+  - atmel,adc-res-names: Contains one identifier string for each resolution
+			 in atmel,adc-res property. "lowres" and "highres"
+			 identifiers are required.
+
+Optional properties:
+  - atmel,adc-use-external-triggers: Boolean to enable the external triggers
+  - atmel,adc-use-res: String corresponding to an identifier from
+		       atmel,adc-res-names property. If not specified, the highest
+		       resolution will be used.
+  - atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion
+  - atmel,adc-sample-hold-time: Sample and Hold Time in microseconds
+  - atmel,adc-ts-wires: Number of touchscreen wires. Should be 4 or 5. If this
+                        value is set, then the adc driver will enable touchscreen
+                        support.
+    NOTE: when adc touchscreen is enabled, the adc hardware trigger will be
+          disabled. Since touchscreen will occupy the trigger register.
+  - atmel,adc-ts-pressure-threshold: a pressure threshold for touchscreen. It
+                                     makes touch detection more precise.
+
+Optional trigger Nodes:
+  - Required properties:
+    * trigger-name: Name of the trigger exposed to the user
+    * trigger-value: Value to put in the Trigger register
+      to activate this trigger
+  - Optional properties:
+    * trigger-external: Is the trigger an external trigger?
+
+Examples:
+adc0: adc@fffb0000 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	compatible = "atmel,at91sam9260-adc";
+	reg = <0xfffb0000 0x100>;
+	interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
+	clocks = <&adc_clk>, <&adc_op_clk>;
+	clock-names = "adc_clk", "adc_op_clk";
+	atmel,adc-channels-used = <0xff>;
+	atmel,adc-startup-time = <40>;
+	atmel,adc-use-external-triggers;
+	atmel,adc-vref = <3300>;
+	atmel,adc-res = <8 10>;
+	atmel,adc-res-names = "lowres", "highres";
+	atmel,adc-use-res = "lowres";
+
+	trigger@0 {
+		reg = <0>;
+		trigger-name = "external-rising";
+		trigger-value = <0x1>;
+		trigger-external;
+	};
+	trigger@1 {
+		reg = <1>;
+		trigger-name = "external-falling";
+		trigger-value = <0x2>;
+		trigger-external;
+	};
+
+	trigger@2 {
+		reg = <2>;
+		trigger-name = "external-any";
+		trigger-value = <0x3>;
+		trigger-external;
+	};
+
+	trigger@3 {
+		reg = <3>;
+		trigger-name = "continuous";
+		trigger-value = <0x6>;
+	};
+};
diff --git a/dts/Bindings/iio/adc/nuvoton-nau7802.txt b/dts/Bindings/iio/adc/nuvoton-nau7802.txt
new file mode 100644
index 0000000000..e9582e6fe3
--- /dev/null
+++ b/dts/Bindings/iio/adc/nuvoton-nau7802.txt
@@ -0,0 +1,18 @@
+* Nuvoton NAU7802 Analog to Digital Converter (ADC)
+
+Required properties:
+  - compatible: Should be "nuvoton,nau7802"
+  - reg: Should contain the ADC I2C address
+
+Optional properties:
+  - nuvoton,vldo: Internal reference voltage in millivolts to be
+    configured valid values are between 2400 mV and 4500 mV.
+  - interrupts: IRQ line for the ADC. If not used the driver will use
+    polling.
+
+Example:
+adc2: nau7802@2a {
+	compatible = "nuvoton,nau7802";
+	reg = <0x2a>;
+	nuvoton,vldo = <3000>;
+};
diff --git a/dts/Bindings/iio/adc/twl4030-madc.txt b/dts/Bindings/iio/adc/twl4030-madc.txt
new file mode 100644
index 0000000000..6bdd21404b
--- /dev/null
+++ b/dts/Bindings/iio/adc/twl4030-madc.txt
@@ -0,0 +1,24 @@
+* TWL4030 Monitoring Analog to Digital Converter (MADC)
+
+The MADC subsystem in the TWL4030 consists of a 10-bit ADC
+combined with a 16-input analog multiplexer.
+
+Required properties:
+  - compatible: Should contain "ti,twl4030-madc".
+  - interrupts: IRQ line for the MADC submodule.
+  - #io-channel-cells: Should be set to <1>.
+
+Optional properties:
+  - ti,system-uses-second-madc-irq: boolean, set if the second madc irq register
+				    should be used, which is intended to be used
+				    by Co-Processors (e.g. a modem).
+
+Example:
+
+&twl {
+	madc {
+		compatible = "ti,twl4030-madc";
+		interrupts = <3>;
+		#io-channel-cells = <1>;
+	};
+};
diff --git a/dts/Bindings/iio/adc/vf610-adc.txt b/dts/Bindings/iio/adc/vf610-adc.txt
new file mode 100644
index 0000000000..dcebff1928
--- /dev/null
+++ b/dts/Bindings/iio/adc/vf610-adc.txt
@@ -0,0 +1,22 @@
+Freescale vf610 Analog to Digital Converter bindings
+
+The devicetree bindings are for the new ADC driver written for
+vf610/i.MX6slx and upward SoCs from Freescale.
+
+Required properties:
+- compatible: Should contain "fsl,vf610-adc"
+- reg: Offset and length of the register set for the device
+- interrupts: Should contain the interrupt for the device
+- clocks: The clock is needed by the ADC controller, ADC clock source is ipg clock.
+- clock-names: Must contain "adc", matching entry in the clocks property.
+- vref-supply: The regulator supply ADC refrence voltage.
+
+Example:
+adc0: adc@4003b000 {
+	compatible = "fsl,vf610-adc";
+	reg = <0x4003b000 0x1000>;
+	interrupts = <0 53 0x04>;
+	clocks = <&clks VF610_CLK_ADC0>;
+	clock-names = "adc";
+	vref-supply = <&reg_vcc_3v3_mcu>;
+};
diff --git a/dts/Bindings/iio/adc/xilinx-xadc.txt b/dts/Bindings/iio/adc/xilinx-xadc.txt
new file mode 100644
index 0000000000..d9ee909d2b
--- /dev/null
+++ b/dts/Bindings/iio/adc/xilinx-xadc.txt
@@ -0,0 +1,113 @@
+Xilinx XADC device driver
+
+This binding document describes the bindings for both of them since the
+bindings are very similar. The Xilinx XADC is a ADC that can be found in the
+series 7 FPGAs from Xilinx. The XADC has a DRP interface for communication.
+Currently two different frontends for the DRP interface exist. One that is only
+available on the ZYNQ family as a hardmacro in the SoC portion of the ZYNQ. The
+other one is available on all series 7 platforms and is a softmacro with a AXI
+interface. This binding document describes the bindings for both of them since
+the bindings are very similar.
+
+Required properties:
+	- compatible: Should be one of
+		* "xlnx,zynq-xadc-1.00.a": When using the ZYNQ device
+		  configuration interface to interface to the XADC hardmacro.
+		* "xlnx,axi-xadc-1.00.a": When using the axi-xadc pcore to
+		  interface to the XADC hardmacro.
+	- reg: Address and length of the register set for the device
+	- interrupts: Interrupt for the XADC control interface.
+	- clocks: When using the ZYNQ this must be the ZYNQ PCAP clock,
+	  when using the AXI-XADC pcore this must be the clock that provides the
+	  clock to the AXI bus interface of the core.
+
+Optional properties:
+	- interrupt-parent: phandle to the parent interrupt controller
+	- xlnx,external-mux:
+		* "none": No external multiplexer is used, this is the default
+		  if the property is omitted.
+		* "single": External multiplexer mode is used with one
+		   multiplexer.
+		* "dual": External multiplexer mode is used with two
+		  multiplexers for simultaneous sampling.
+	- xlnx,external-mux-channel: Configures which pair of pins is used to
+	  sample data in external mux mode.
+	  Valid values for single external multiplexer mode are:
+		0: VP/VN
+		1: VAUXP[0]/VAUXN[0]
+		2: VAUXP[1]/VAUXN[1]
+		...
+		16: VAUXP[15]/VAUXN[15]
+	  Valid values for dual external multiplexer mode are:
+		1: VAUXP[0]/VAUXN[0] - VAUXP[8]/VAUXN[8]
+		2: VAUXP[1]/VAUXN[1] - VAUXP[9]/VAUXN[9]
+		...
+		8: VAUXP[7]/VAUXN[7] - VAUXP[15]/VAUXN[15]
+
+	  This property needs to be present if the device is configured for
+	  external multiplexer mode (either single or dual). If the device is
+	  not using external multiplexer mode the property is ignored.
+	- xnlx,channels: List of external channels that are connected to the ADC
+	  Required properties:
+		* #address-cells: Should be 1.
+		* #size-cells: Should be 0.
+
+	  The child nodes of this node represent the external channels which are
+	  connected to the ADC. If the property is no present no external
+	  channels will be assumed to be connected.
+
+	  Each child node represents one channel and has the following
+	  properties:
+		Required properties:
+			* reg: Pair of pins the the channel is connected to.
+				0: VP/VN
+				1: VAUXP[0]/VAUXN[0]
+				2: VAUXP[1]/VAUXN[1]
+				...
+				16: VAUXP[15]/VAUXN[15]
+			  Note each channel number should only be used at most
+			  once.
+		Optional properties:
+			* xlnx,bipolar: If set the channel is used in bipolar
+			  mode.
+
+
+Examples:
+	xadc@f8007100 {
+		compatible = "xlnx,zynq-xadc-1.00.a";
+		reg = <0xf8007100 0x20>;
+		interrupts = <0 7 4>;
+		interrupt-parent = <&gic>;
+		clocks = <&pcap_clk>;
+
+		xlnx,channels {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			channel@0 {
+				reg = <0>;
+			};
+			channel@1 {
+				reg = <1>;
+			};
+			channel@8 {
+				reg = <8>;
+			};
+		};
+	};
+
+	xadc@43200000 {
+		compatible = "xlnx,axi-xadc-1.00.a";
+		reg = <0x43200000 0x1000>;
+		interrupts = <0 53 4>;
+		interrupt-parent = <&gic>;
+		clocks = <&fpga1_clk>;
+
+		xlnx,channels {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			channel@0 {
+				reg = <0>;
+				xlnx,bipolar;
+			};
+		};
+	};