xref: /freebsd/sys/contrib/device-tree/Bindings/reset/nuvoton,npcm750-reset.yaml (revision 9f44a47fd07924afc035991af15d84e6585dea4f) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/reset/nuvoton,npcm750-reset.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Nuvoton NPCM Reset controller
8
9maintainers:
10  - Tomer Maimon <tmaimon77@gmail.com>
11
12properties:
13  compatible:
14    enum:
15      - nuvoton,npcm750-reset        # Poleg NPCM7XX SoC
16      - nuvoton,npcm845-reset        # Arbel NPCM8XX SoC
17
18  reg:
19    maxItems: 1
20
21  '#reset-cells':
22    const: 2
23
24  nuvoton,sysgcr:
25    $ref: /schemas/types.yaml#/definitions/phandle
26    description: a phandle to access GCR registers.
27
28  nuvoton,sw-reset-number:
29    $ref: /schemas/types.yaml#/definitions/uint32
30    minimum: 1
31    maximum: 4
32    description: |
33      Contains the software reset number to restart the SoC.
34      If not specified, software reset is disabled.
35
36required:
37  - compatible
38  - reg
39  - '#reset-cells'
40  - nuvoton,sysgcr
41
42additionalProperties: false
43
44examples:
45  - |
46    #include <dt-bindings/reset/nuvoton,npcm7xx-reset.h>
47    rstc: rstc@f0801000 {
48        compatible = "nuvoton,npcm750-reset";
49        reg = <0xf0801000 0x70>;
50        #reset-cells = <2>;
51        nuvoton,sysgcr = <&gcr>;
52        nuvoton,sw-reset-number = <2>;
53    };
54
55    // Specifying reset lines connected to IP NPCM7XX modules
56    spi0: spi {
57        resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>;
58    };
59