Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml


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

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/synopsys-dw-mshc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Synopsys Designware Mobile Storage Host Controller Binding

allOf:
  - $ref: "synopsys-dw-mshc-common.yaml#"

maintainers:
  - Ulf Hansson <ulf.hansson@linaro.org>

# Everything else is described in the common file
properties:
  compatible:
    const: snps,dw-mshc

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    minItems: 2
    maxItems: 2
    description:
      Handle to "biu" and "ciu" clocks for the
      bus interface unit clock and the card interface unit clock.

  clock-names:
    items:
      - const: biu
      - const: ciu

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

examples:
  - |
    mmc@12200000 {
      compatible = "snps,dw-mshc";
      reg = <0x12200000 0x1000>;
      interrupts = <0 75 0>;
      clocks = <&clock 351>, <&clock 132>;
      clock-names = "biu", "ciu";
      dmas = <&pdma 12>;
      dma-names = "rx-tx";
      resets = <&rst 20>;
      reset-names = "reset";
      vmmc-supply = <&buck8>;
      #address-cells = <1>;
      #size-cells = <0>;
      broken-cd;
      bus-width = <8>;
      cap-mmc-highspeed;
      cap-sd-highspeed;
      card-detect-delay = <200>;
      clock-freq-min-max = <400000 200000000>;
      clock-frequency = <400000000>;
      data-addr = <0x200>;
      fifo-depth = <0x80>;
      fifo-watermark-aligned;
    };