Marvell Dove SoC binding was not documented, yet. Add the documentation
and also describe Global Configuration register node in it.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselba...@gmail.com>
---
I chose not to send this to each DT maintainer but devicetree ml only.
Is that right or wrong now?

Cc: Jason Cooper <ja...@lakedaemon.net>
Cc: Andrew Lunn <and...@lunn.ch>
Cc: Gregory Clement <gregory.clem...@free-electrons.com>
Cc: devicet...@vger.kernel.org
Cc: linux-...@vger.kernel.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 .../devicetree/bindings/arm/marvell,dove.txt       | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/marvell,dove.txt

diff --git a/Documentation/devicetree/bindings/arm/marvell,dove.txt 
b/Documentation/devicetree/bindings/arm/marvell,dove.txt
new file mode 100644
index 000000000000..aaaf64c56e44
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell,dove.txt
@@ -0,0 +1,22 @@
+Marvell Dove Platforms Device Tree Bindings
+-----------------------------------------------
+
+Boards with a Marvell Dove SoC shall have the following properties:
+
+Required root node property:
+- compatible: must contain "marvell,dove";
+
+* Global Configuration registers
+
+Global Configuration registers of Dove SoC are shared by a syscon node.
+
+Required properties:
+- compatible: must contain "marvell,dove-global-config" and "syscon".
+- reg: base address and size of the Global Configuration registers.
+
+Example:
+
+gconf: global-config@e802c {
+       compatible = "marvell,dove-global-config", "syscon";
+       reg = <0xe802c 0x14>;
+};
-- 
1.8.5.2

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