Merge tag 'gemini-dts-base' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into next/dt

Base patches for Gemini device trees:

- Bindings for the platform.

- Device trees for everything that was available as board
  files previously.

- New device tree for my target system SQ201.

- Device tree bindings for the watchdog. The driver was merged
  to the watchdog subsystem so this was probably just missed
  by the maintainer, and it is ACKed by Rob Herring.

* tag 'gemini-dts-base' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
  ARM: dts: add watchdog to the Gemini
  watchdog: add DT bindings for Cortina Gemini
  ARM: dts: add a devicetree for Wiliboard WBD-222
  ARM: dts: add a devicetree for Wiliboard WBD-111
  ARM: dts: add a devicetree for Teltonika RUT1xx
  ARM: dts: add a devicetree for Raidsonic NAS IB-4220-B
  ARM: dts: add device tree for Gemini SoC and SQ201
  ARM: dts: add top-level DT bindings for Cortina Gemini

Signed-off-by: Olof Johansson <olof@lixom.net>

2 files changed, 103 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/gemini.txt b/Documentation/devicetree/bindings/arm/gemini.txt
new file mode 100644
index 000000000000..0041eb031116
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/gemini.txt
@@ -0,0 +1,86 @@
+Cortina systems Gemini platforms
+
+The Gemini SoC is the project name for an ARMv4 FA525-based SoC originally
+produced by Storlink Semiconductor around 2005. The company was renamed
+later renamed Storm Semiconductor. The chip product name is Storlink SL3516.
+It was derived from earlier products from Storm named SL3316 (Centroid) and
+SL3512 (Bulverde).
+
+Storm Semiconductor was acquired by Cortina Systems in 2008 and the SoC was
+produced and used for NAS and similar usecases. In 2014 Cortina Systems was
+in turn acquired by Inphi, who seem to have discontinued this product family.
+
+Many of the IP blocks used in the SoC comes from Faraday Technology.
+
+Required properties (in root node):
+	compatible = "cortina,gemini";
+
+Required nodes:
+
+- soc: the SoC should be represented by a simple bus encompassing all the
+  onchip devices, this is referred to as the soc bus node.
+
+- syscon: the soc bus node must have a system controller node pointing to the
+  global control registers, with the compatible string
+  "cortina,gemini-syscon", "syscon";
+
+- timer: the soc bus node must have a timer node pointing to the SoC timer
+  block, with the compatible string "cortina,gemini-timer"
+  See: clocksource/cortina,gemini-timer.txt
+
+- interrupt-controller: the sob bus node must have an interrupt controller
+  node pointing to the SoC interrupt controller block, with the compatible
+  string "cortina,gemini-interrupt-controller"
+  See interrupt-controller/cortina,gemini-interrupt-controller.txt
+
+Example:
+
+/ {
+	model = "Foo Gemini Machine";
+	compatible = "cortina,gemini";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x8000000>;
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		compatible = "simple-bus";
+		interrupt-parent = <&intcon>;
+
+		syscon: syscon@40000000 {
+			compatible = "cortina,gemini-syscon", "syscon";
+			reg = <0x40000000 0x1000>;
+		};
+
+		uart0: serial@42000000 {
+			compatible = "ns16550a";
+			reg = <0x42000000 0x100>;
+			clock-frequency = <48000000>;
+			interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+		};
+
+		timer@43000000 {
+			compatible = "cortina,gemini-timer";
+			reg = <0x43000000 0x1000>;
+			interrupt-parent = <&intcon>;
+			interrupts = <14 IRQ_TYPE_EDGE_FALLING>, /* Timer 1 */
+				     <15 IRQ_TYPE_EDGE_FALLING>, /* Timer 2 */
+				     <16 IRQ_TYPE_EDGE_FALLING>; /* Timer 3 */
+			syscon = <&syscon>;
+		};
+
+		intcon: interrupt-controller@48000000 {
+			compatible = "cortina,gemini-interrupt-controller";
+			reg = <0x48000000 0x1000>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+};
diff --git a/Documentation/devicetree/bindings/watchdog/cortina,gemini-watchdog.txt b/Documentation/devicetree/bindings/watchdog/cortina,gemini-watchdog.txt
new file mode 100644
index 000000000000..bc4b865d178b
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/cortina,gemini-watchdog.txt
@@ -0,0 +1,17 @@
+Cortina Systems Gemini SoC Watchdog
+
+Required properties:
+- compatible : must be "cortina,gemini-watchdog"
+- reg : shall contain base register location and length
+- interrupts : shall contain the interrupt for the watchdog
+
+Optional properties:
+- timeout-sec : the default watchdog timeout in seconds.
+
+Example:
+
+watchdog@41000000 {
+	compatible = "cortina,gemini-watchdog";
+	reg = <0x41000000 0x1000>;
+	interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+};