summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/mmc/socionext,uniphier-sd.yaml
blob: a586fad0a46bd84705a45bb4bd32a4542ce94afe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/socionext,uniphier-sd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: UniPhier SD/SDIO/eMMC controller

maintainers:
  - Masahiro Yamada <yamada.masahiro@socionext.com>

properties:
  compatible:
    description: version 2.91, 3.1, 3.1.1, respectively
    enum:
      - socionext,uniphier-sd-v2.91
      - socionext,uniphier-sd-v3.1
      - socionext,uniphier-sd-v3.1.1

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  dmas:
    maxItems: 1

  dma-names:
    const: rx-tx

  reset-names:
    description: |
      There are three reset signals at maximum
        host:   mandatory for all variants
        bridge: exist only for version 2.91
        hw:     optional. exist if eMMC hw reset line is available
    oneOf:
      - const: host
      - items:
          - const: host
          - const: bridge
      - items:
          - const: host
          - const: hw
      - items:
          - const: host
          - const: bridge
          - const: hw

  resets:
    minItems: 1
    maxItems: 3

allOf:
  - $ref: mmc-controller.yaml

  - if:
      properties:
        compatible:
          contains:
            const: socionext,uniphier-sd-v2.91
    then:
      properties:
        reset-names:
          contains:
            const: bridge
    else:
      properties:
        reset-names:
          not:
            contains:
              const: bridge

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - reset-names
  - resets

unevaluatedProperties: false

examples:
  - |
    sd: mmc@5a400000 {
        compatible = "socionext,uniphier-sd-v2.91";
        reg = <0x5a400000 0x200>;
        interrupts = <0 76 4>;
        pinctrl-names = "default", "uhs";
        pinctrl-0 = <&pinctrl_sd>;
        pinctrl-1 = <&pinctrl_sd_uhs>;
        clocks = <&mio_clk 0>;
        reset-names = "host", "bridge";
        resets = <&mio_rst 0>, <&mio_rst 3>;
        dma-names = "rx-tx";
        dmas = <&dmac 4>;
        bus-width = <4>;
        cap-sd-highspeed;
        sd-uhs-sdr12;
        sd-uhs-sdr25;
        sd-uhs-sdr50;
    };