dt-bindings: mtd: add DT binding for s3c2410 flash controller

Adds the device tree bindings description for Samsung S3C2410 and
compatible NAND flash controller.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sergio Prado <sergio.prado@e-labworks.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

diff --git a/Documentation/devicetree/bindings/mtd/samsung-s3c2410.txt b/Documentation/devicetree/bindings/mtd/samsung-s3c2410.txt
new file mode 100644 (file)
index 0000000..0040eb8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/samsung-s3c2410.txt
@@ -0,0 +1,56 @@
+* Samsung S3C2410 and compatible NAND flash controller
+
+Required properties:
+- compatible : The possible values are:
+       "samsung,s3c2410-nand"
+       "samsung,s3c2412-nand"
+       "samsung,s3c2440-nand"
+- reg : register's location and length.
+- #address-cells, #size-cells : see nand.txt
+- clocks : phandle to the nand controller clock
+- clock-names : must contain "nand"
+
+Optional child nodes:
+Child nodes representing the available nand chips.
+
+Optional child properties:
+- nand-ecc-mode : see nand.txt
+- nand-on-flash-bbt : see nand.txt
+
+Each child device node may optionally contain a 'partitions' sub-node,
+which further contains sub-nodes describing the flash partition mapping.
+See partition.txt for more detail.
+
+Example:
+
+nand-controller@4e000000 {
+       compatible = "samsung,s3c2440-nand";
+       reg = <0x4e000000 0x40>;
+
+       #address-cells = <1>;
+        #size-cells = <0>;
+
+       clocks = <&clocks HCLK_NAND>;
+       clock-names = "nand";
+
+       nand {
+               nand-ecc-mode = "soft";
+               nand-on-flash-bbt;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "u-boot";
+                               reg = <0 0x040000>;
+                       };
+
+                       partition@40000 {
+                               label = "kernel";
+                               reg = <0x040000 0x500000>;
+                       };
+               };
+       };
+};