Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mtd/ti,gpmc-onenand.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: OneNAND over Texas Instruments GPMC bus.
   8
   9 maintainers:
  10   - Tony Lindgren <tony@atomide.com>
  11   - Roger Quadros <rogerq@kernel.org>
  12
  13 description:
  14   GPMC connected OneNAND (found on OMAP boards) are represented
  15   as child nodes of the GPMC controller.
  16
  17 properties:
  18   compatible:
  19     const: ti,omap2-onenand
  20
  21   reg:
  22     items:
  23       - description: |
  24           Chip Select number, register offset and size of
  25           OneNAND register window.
  26
  27   "#address-cells": true
  28
  29   "#size-cells": true
  30
  31   int-gpios:
  32     description: GPIO specifier for the INT pin.
  33
  34 patternProperties:
  35   "@[0-9a-f]+$":
  36     $ref: "/schemas/mtd/partitions/partition.yaml"
  37
  38 allOf:
  39   - $ref: "/schemas/memory-controllers/ti,gpmc-child.yaml"
  40
  41 required:
  42   - compatible
  43   - reg
  44   - "#address-cells"
  45   - "#size-cells"
  46
  47 unevaluatedProperties: false
  48
  49 examples:
  50   - |
  51     gpmc: memory-controller@6e000000 {
  52       compatible = "ti,omap3430-gpmc";
  53       reg = <0x6e000000 0x02d0>;
  54       interrupts = <20>;
  55       gpmc,num-cs = <8>;
  56       gpmc,num-waitpins = <4>;
  57       clocks = <&l3s_clkctrl>;
  58       clock-names = "fck";
  59       #address-cells = <2>;
  60       #size-cells = <1>;
  61
  62       ranges = <0 0 0x01000000 0x01000000>,   /* 16 MB for OneNAND */
  63                <1 0 0x02000000 0x01000000>;   /* 16 MB for smc91c96 */
  64
  65       onenand@0,0 {
  66         compatible = "ti,omap2-onenand";
  67         reg = <0 0 0x20000>;    /* CS0, offset 0, IO size 128K */
  68         #address-cells = <1>;
  69         #size-cells = <1>;
  70
  71         partition@0 {
  72           label = "bootloader";
  73           reg = <0x00000000 0x00100000>;
  74         };
  75
  76         partition@100000 {
  77           label = "config";
  78           reg = <0x00100000 0x002c0000>;
  79         };
  80       };
  81     };