xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/mmc/socionext,uniphier-sd.yaml (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2*4882a593Smuzhiyun%YAML 1.2
3*4882a593Smuzhiyun---
4*4882a593Smuzhiyun$id: http://devicetree.org/schemas/mmc/socionext,uniphier-sd.yaml#
5*4882a593Smuzhiyun$schema: http://devicetree.org/meta-schemas/core.yaml#
6*4882a593Smuzhiyun
7*4882a593Smuzhiyuntitle: UniPhier SD/SDIO/eMMC controller
8*4882a593Smuzhiyun
9*4882a593Smuzhiyunmaintainers:
10*4882a593Smuzhiyun  - Masahiro Yamada <yamada.masahiro@socionext.com>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyunproperties:
13*4882a593Smuzhiyun  compatible:
14*4882a593Smuzhiyun    description: version 2.91, 3.1, 3.1.1, respectively
15*4882a593Smuzhiyun    enum:
16*4882a593Smuzhiyun      - socionext,uniphier-sd-v2.91
17*4882a593Smuzhiyun      - socionext,uniphier-sd-v3.1
18*4882a593Smuzhiyun      - socionext,uniphier-sd-v3.1.1
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun  reg:
21*4882a593Smuzhiyun    maxItems: 1
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun  interrupts:
24*4882a593Smuzhiyun    maxItems: 1
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun  clocks:
27*4882a593Smuzhiyun    maxItems: 1
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun  reset-names:
30*4882a593Smuzhiyun    description: |
31*4882a593Smuzhiyun      There are three reset signals at maximum
32*4882a593Smuzhiyun        host:   mandatory for all variants
33*4882a593Smuzhiyun        bridge: exist only for version 2.91
34*4882a593Smuzhiyun        hw:     optional. exist if eMMC hw reset line is available
35*4882a593Smuzhiyun    oneOf:
36*4882a593Smuzhiyun      - const: host
37*4882a593Smuzhiyun      - items:
38*4882a593Smuzhiyun          - const: host
39*4882a593Smuzhiyun          - const: bridge
40*4882a593Smuzhiyun      - items:
41*4882a593Smuzhiyun          - const: host
42*4882a593Smuzhiyun          - const: hw
43*4882a593Smuzhiyun      - items:
44*4882a593Smuzhiyun          - const: host
45*4882a593Smuzhiyun          - const: bridge
46*4882a593Smuzhiyun          - const: hw
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun  resets:
49*4882a593Smuzhiyun    minItems: 1
50*4882a593Smuzhiyun    maxItems: 3
51*4882a593Smuzhiyun
52*4882a593SmuzhiyunallOf:
53*4882a593Smuzhiyun  - $ref: mmc-controller.yaml
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun  - if:
56*4882a593Smuzhiyun      properties:
57*4882a593Smuzhiyun        compatible:
58*4882a593Smuzhiyun          contains:
59*4882a593Smuzhiyun            const: socionext,uniphier-sd-v2.91
60*4882a593Smuzhiyun    then:
61*4882a593Smuzhiyun      properties:
62*4882a593Smuzhiyun        reset-names:
63*4882a593Smuzhiyun          contains:
64*4882a593Smuzhiyun            const: bridge
65*4882a593Smuzhiyun    else:
66*4882a593Smuzhiyun      properties:
67*4882a593Smuzhiyun        reset-names:
68*4882a593Smuzhiyun          not:
69*4882a593Smuzhiyun            contains:
70*4882a593Smuzhiyun              const: bridge
71*4882a593Smuzhiyun
72*4882a593Smuzhiyunrequired:
73*4882a593Smuzhiyun  - compatible
74*4882a593Smuzhiyun  - reg
75*4882a593Smuzhiyun  - interrupts
76*4882a593Smuzhiyun  - clocks
77*4882a593Smuzhiyun  - reset-names
78*4882a593Smuzhiyun  - resets
79*4882a593Smuzhiyun
80*4882a593SmuzhiyununevaluatedProperties: false
81*4882a593Smuzhiyun
82*4882a593Smuzhiyunexamples:
83*4882a593Smuzhiyun  - |
84*4882a593Smuzhiyun    sd: mmc@5a400000 {
85*4882a593Smuzhiyun        compatible = "socionext,uniphier-sd-v2.91";
86*4882a593Smuzhiyun        reg = <0x5a400000 0x200>;
87*4882a593Smuzhiyun        interrupts = <0 76 4>;
88*4882a593Smuzhiyun        pinctrl-names = "default", "uhs";
89*4882a593Smuzhiyun        pinctrl-0 = <&pinctrl_sd>;
90*4882a593Smuzhiyun        pinctrl-1 = <&pinctrl_sd_uhs>;
91*4882a593Smuzhiyun        clocks = <&mio_clk 0>;
92*4882a593Smuzhiyun        reset-names = "host", "bridge";
93*4882a593Smuzhiyun        resets = <&mio_rst 0>, <&mio_rst 3>;
94*4882a593Smuzhiyun        dma-names = "rx-tx";
95*4882a593Smuzhiyun        dmas = <&dmac 4>;
96*4882a593Smuzhiyun        bus-width = <4>;
97*4882a593Smuzhiyun        cap-sd-highspeed;
98*4882a593Smuzhiyun        sd-uhs-sdr12;
99*4882a593Smuzhiyun        sd-uhs-sdr25;
100*4882a593Smuzhiyun        sd-uhs-sdr50;
101*4882a593Smuzhiyun    };
102