Documentation/devicetree/bindings/arm/davinci/nand.txt

   1 * Texas Instruments Davinci NAND
   2
   3 This file provides information, what the device node for the
   4 davinci nand interface contain.
   5
   6 Required properties:
   7 - compatible: "ti,davinci-nand";
   8 - reg : contain 2 offset/length values:
   9         - offset and length for the access window
  10         - offset and length for accessing the aemif control registers
  11 - ti,davinci-chipselect: Indicates on the davinci_nand driver which
  12                          chipselect is used for accessing the nand.
  13
  14 Recommended properties :
  15 - ti,davinci-mask-ale: mask for ale
  16 - ti,davinci-mask-cle: mask for cle
  17 - ti,davinci-mask-chipsel: mask for chipselect
  18 - ti,davinci-ecc-mode: ECC mode valid values for davinci driver:
  19                 - "none"
  20                 - "soft"
  21                 - "hw"
  22 - ti,davinci-ecc-bits: used ECC bits, currently supported 1 or 4.
  23 - ti,davinci-nand-buswidth: buswidth 8 or 16
  24 - ti,davinci-nand-use-bbt: use flash based bad block table support.
  25
  26 nand device bindings may contain additional sub-nodes describing
  27 partitions of the address space. See partition.txt for more detail.
  28
  29 Example (enbw_cmc board):
  30 aemif@60000000 {
  31         compatible = "ti,davinci-aemif";
  32         #address-cells = <2>;
  33         #size-cells = <1>;
  34         reg = <0x68000000 0x80000>;
  35         ranges = <2 0 0x60000000 0x02000000
  36                   3 0 0x62000000 0x02000000
  37                   4 0 0x64000000 0x02000000
  38                   5 0 0x66000000 0x02000000
  39                   6 0 0x68000000 0x02000000>;
  40         nand@3,0 {
  41                 compatible = "ti,davinci-nand";
  42                 reg = <3 0x0 0x807ff
  43                         6 0x0 0x8000>;
  44                 #address-cells = <1>;
  45                 #size-cells = <1>;
  46                 ti,davinci-chipselect = <1>;
  47                 ti,davinci-mask-ale = <0>;
  48                 ti,davinci-mask-cle = <0>;
  49                 ti,davinci-mask-chipsel = <0>;
  50                 ti,davinci-ecc-mode = "hw";
  51                 ti,davinci-ecc-bits = <4>;
  52                 ti,davinci-nand-use-bbt;
  53
  54                 partition@180000 {
  55                         label = "ubifs";
  56                         reg = <0x180000 0x7e80000>;
  57                 };
  58         };
  59 };