[PATCH 3/3] mtd: hisilicon: add device tree binding documentation

[wangzhou.bry@gmail.com (Zhou Wang)]

Signed-off-by: Zhou Wang <wangzhou.bry@gmail.com>
---
 .../devicetree/bindings/mtd/hisi-nand.txt          |   38 ++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/hisi-nand.txt

diff --git a/Documentation/devicetree/bindings/mtd/hisi-nand.txt b/Documentation/devicetree/bindings/mtd/hisi-nand.txt
new file mode 100644
index 0000000..1cc6470
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/hisi-nand.txt
@@ -0,0 +1,38 @@
+Hisilicon Hip04 Soc NAND controller DT binding
+
+Required properties:
+- compatible:          Should be "hisilicon,nfc504".
+- reg:                 Contain registers location and length for reg and data.
+- interrupts:          Interrupt number for nfc.
+- nand-bus-width:      See nand.txt.
+- nand-ecc-mode:       See nand.txt.
+- hisi,nand-ecc-bits:  ECC bits type support.
+		<0>:   none ecc
+		<1>:   Can correct 1bit per 512byte.
+		<6>:   Can correct 16bits per 1K byte.
+- #address-cells:      partition address.
+- #size-cells:         partition size.
+
+Flash chip may optionally contain additional sub-nodes describing partitions of
+the address space. See partition.txt for more detail.
+
+Example:
+
+	nand: nand at 4020000 {
+		compatible = "hisilicon,nfc504";
+		reg = <0x4020000 0x10000>, <0x5000000 0x1000>;
+		interrupts = <0 379 4>;
+		nand-bus-width = <8>;
+		nand-ecc-mode = "hw";
+		hisi,nand-ecc-bits = <1>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition at 0 {
+			label = "nand_text";
+			reg = <0x00000000 0x00400000>;
+		};
+
+		...
+
+	};
-- 
1.7.9.5