Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / mtd / orion-nand.txt

diff --git a/kernel/Documentation/devicetree/bindings/mtd/orion-nand.txt b/kernel/Documentation/devicetree/bindings/mtd/orion-nand.txt
new file mode 100644 (file)
index 0000000..2d6ab66
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+++ b/kernel/Documentation/devicetree/bindings/mtd/orion-nand.txt
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+NAND support for Marvell Orion SoC platforms
+
+Required properties:
+- compatible : "marvell,orion-nand".
+- reg : Base physical address of the NAND and length of memory mapped
+       region
+
+Optional properties:
+- cle : Address line number connected to CLE. Default is 0
+- ale : Address line number connected to ALE. Default is 1
+- bank-width : Width in bytes of the device. Default is 1
+- chip-delay : Chip dependent delay for transferring data from array to read
+               registers in usecs
+
+The device tree may optionally contain sub-nodes describing partitions of the
+address space. See partition.txt for more detail.
+
+Example:
+
+nand@f4000000 {
+       #address-cells = <1>;
+       #size-cells = <1>;
+       cle = <0>;
+       ale = <1>;
+       bank-width = <1>;
+       chip-delay = <25>;
+       compatible = "marvell,orion-nand";
+       reg = <0xf4000000 0x400>;
+
+       partition@0 {
+               label = "u-boot";
+               reg = <0x0000000 0x100000>;
+               read-only;
+       };
+
+       partition@100000 {
+               label = "uImage";
+               reg = <0x0100000 0x200000>;
+       };
+
+       partition@300000 {
+               label = "dtb";
+               reg = <0x0300000 0x100000>;
+       };
+
+       partition@400000 {
+               label = "root";
+               reg = <0x0400000 0x7d00000>;
+       };
+};