xref: /linux/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml (revision 55d0969c451159cff86949b38c39171cab962069) 
1# SPDX-License-Identifier: (GPL-2.0-or-later)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/fsi/ibm,fsi2spi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: IBM FSI-attached SPI controllers
8
9maintainers:
10  - Eddie James <eajames@linux.ibm.com>
11
12description:
13  This binding describes an FSI CFAM engine called the FSI2SPI. Therefore this
14  node will always be a child of an FSI CFAM node. This FSI2SPI engine provides
15  access to a number of SPI controllers.
16
17properties:
18  compatible:
19    enum:
20      - ibm,fsi2spi
21
22  reg:
23    items:
24      - description: FSI slave address
25
26  "#address-cells":
27    const: 1
28
29  "#size-cells":
30    const: 0
31
32patternProperties:
33  "^spi@[0-9a-f]+$":
34    type: object
35    $ref: /schemas/spi/ibm,spi-fsi.yaml
36
37required:
38  - compatible
39  - reg
40
41additionalProperties: false
42
43examples:
44  - |
45    fsi2spi@1c00 {
46        compatible = "ibm,fsi2spi";
47        reg = <0x1c00 0x400>;
48        #address-cells = <1>;
49        #size-cells = <0>;
50
51        spi@0 {
52            compatible = "ibm,spi-fsi";
53            reg = <0>;
54            #address-cells = <1>;
55            #size-cells = <0>;
56
57            eeprom@0 {
58                compatible = "atmel,at25";
59                reg = <0>;
60                address-width = <24>;
61                pagesize = <256>;
62                size = <0x80000>;
63                spi-max-frequency = <1000000>;
64            };
65        };
66    };
67