* Texas Instruments Davinci NAND

This file provides information, what the device node for the
davinci nand interface contain.

Required properties:
- compatible: "ti,davinci-nand";
- reg : contain 2 offset/length values:
        - offset and length for the access window
        - offset and length for accessing the aemif control registers
- ti,davinci-chipselect: Indicates on the davinci_nand driver which
                         chipselect is used for accessing the nand.

Recommended properties :
- ti,davinci-mask-ale: mask for ale
- ti,davinci-mask-cle: mask for cle
- ti,davinci-mask-chipsel: mask for chipselect
- ti,davinci-ecc-mode: ECC mode valid values for davinci driver:
		- "none"
		- "soft"
		- "hw"
- ti,davinci-ecc-bits: used ECC bits, currently supported 1 or 4.
- ti,davinci-nand-buswidth: buswidth 8 or 16
- ti,davinci-nand-use-bbt: use flash based bad block table support.

nand device bindings may contain additional sub-nodes describing
partitions of the address space. See partition.txt for more detail.

Example(da850 EVM ):
nand_cs3@62000000 {
	compatible = "ti,davinci-nand";
	reg = <0x62000000 0x807ff
		0x68000000 0x8000>;
	ti,davinci-chipselect = <1>;
	ti,davinci-mask-ale = <0>;
	ti,davinci-mask-cle = <0>;
	ti,davinci-mask-chipsel = <0>;
	ti,davinci-ecc-mode = "hw";
	ti,davinci-ecc-bits = <4>;
	ti,davinci-nand-use-bbt;

	partition@180000 {
		label = "ubifs";
		reg = <0x180000 0x7e80000>;
	};
};