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 };
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