[PATCH v2 1/2] mtd: arasan: Add device tree binding documentation

[Punnaiah Choudary Kalluri]

This patch adds the dts binding document for arasan nand flash
controller.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia at xilinx.com>
---
Changes in v2:
- None.
---
 .../devicetree/bindings/mtd/arasan_nfc.txt         |   27 ++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mtd/arasan_nfc.txt

diff --git a/Documentation/devicetree/bindings/mtd/arasan_nfc.txt b/Documentation/devicetree/bindings/mtd/arasan_nfc.txt
new file mode 100644
index 0000000..7815120
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/arasan_nfc.txt
@@ -0,0 +1,27 @@
+Arasan Nand Flash Controller with ONFI 3.1 support
+
+Required properties:
+- compatible: Should be "arasan,nfc-v3p10"
+- reg: Memory map for module access
+- interrupt-parent: Interrupt controller the interrupt is routed through
+- interrupts: Should contain the interrupt for the device
+
+Optional properties:
+- arasan,has-mdma: Boolean to support dma transfer for nand read/write.
+
+for nand partition information please refer the below file
+Documentation/devicetree/bindings/mtd/partition.txt
+
+Example:
+	nand0: nand at ff100000 {
+		compatible = "arasan,nfc-v3p10"
+		reg = <0x0 0xff100000 0x1000>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 14 4>;
+		arasan,has-mdma;
+		partition at 0 {
+			label = "filesystem";
+			reg = <0x0 0x0 0x1000000>;
+		};
+		(...)
+	};
-- 
1.7.4