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   $nodename:
  19     pattern: "^onenand@[0-9],[0,9]$"
  20
  21   compatible:
  22     const: ti,omap2-onenand
  23
  24   reg:
  25     items:
  26       - description: |
  27           Chip Select number, register offset and size of
  28           OneNAND register window.
  29
  30   "#address-cells": true
  31
  32   "#size-cells": true
  33
  34   int-gpios:
  35     description: GPIO specifier for the INT pin.
  36
  37 patternProperties:
  38   "@[0-9a-f]+$":
  39     $ref: /schemas/mtd/partitions/partition.yaml
  40
  41 allOf:
  42   - $ref: /schemas/memory-controllers/ti,gpmc-child.yaml
  43
  44 required:
  45   - compatible
  46   - reg
  47   - "#address-cells"
  48   - "#size-cells"
  49
  50 unevaluatedProperties: false
  51
  52 examples:
  53   - |
  54     gpmc: memory-controller@6e000000 {
  55       compatible = "ti,omap3430-gpmc";
  56       reg = <0x6e000000 0x02d0>;
  57       interrupts = <20>;
  58       gpmc,num-cs = <8>;
  59       gpmc,num-waitpins = <4>;
  60       clocks = <&l3s_clkctrl>;
  61       clock-names = "fck";
  62       #address-cells = <2>;
  63       #size-cells = <1>;
  64
  65       ranges = <0 0 0x01000000 0x01000000>,   /* 16 MB for OneNAND */
  66                <1 0 0x02000000 0x01000000>;   /* 16 MB for smc91c96 */
  67
  68       onenand@0,0 {
  69         compatible = "ti,omap2-onenand";
  70         reg = <0 0 0x20000>;    /* CS0, offset 0, IO size 128K */
  71         #address-cells = <1>;
  72         #size-cells = <1>;
  73
  74         partition@0 {
  75           label = "bootloader";
  76           reg = <0x00000000 0x00100000>;
  77         };
  78
  79         partition@100000 {
  80           label = "config";
  81           reg = <0x00100000 0x002c0000>;
  82         };
  83       };
  84     };