xref: /freebsd/sys/contrib/device-tree/Bindings/mmc/sdhci-pxa.yaml (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a) 
1# SPDX-License-Identifier: GPL-2.0-only
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mmc/sdhci-pxa.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Marvell PXA SDHCI v1/v2/v3
8
9maintainers:
10  - Ulf Hansson <ulf.hansson@linaro.org>
11
12allOf:
13  - $ref: mmc-controller.yaml#
14  - if:
15      properties:
16        compatible:
17          contains:
18            const: marvell,armada-380-sdhci
19    then:
20      properties:
21        reg:
22          minItems: 3
23        reg-names:
24          minItems: 3
25      required:
26        - reg-names
27    else:
28      properties:
29        reg:
30          maxItems: 1
31        reg-names:
32          maxItems: 1
33
34properties:
35  compatible:
36    enum:
37      - mrvl,pxav1-mmc
38      - mrvl,pxav2-mmc
39      - mrvl,pxav3-mmc
40      - marvell,armada-380-sdhci
41
42  reg:
43    minItems: 1
44    maxItems: 3
45
46  reg-names:
47    items:
48      - const: sdhci
49      - const: mbus
50      - const: conf-sdio3
51
52  interrupts:
53    maxItems: 1
54
55  clocks:
56    minItems: 1
57    maxItems: 2
58
59  clock-names:
60    minItems: 1
61    items:
62      - const: io
63      - const: core
64
65  pinctrl-names:
66    description:
67      Optional for supporting PXA168 SDIO IRQ errata to switch CMD pin between
68      SDIO CMD and GPIO mode.
69    items:
70      - const: default
71      - const: state_cmd_gpio
72
73  pinctrl-0:
74    description:
75      Should contain default pinctrl.
76
77  pinctrl-1:
78    description:
79      Should switch CMD pin to GPIO mode as a high output.
80
81  mrvl,clk-delay-cycles:
82    description: Specify a number of cycles to delay for tuning.
83    $ref: /schemas/types.yaml#/definitions/uint32
84
85required:
86  - compatible
87  - reg
88  - interrupts
89  - clocks
90  - clock-names
91
92unevaluatedProperties: false
93
94examples:
95  - |
96    #include <dt-bindings/clock/berlin2.h>
97    mmc@d4280800 {
98        compatible = "mrvl,pxav3-mmc";
99        reg = <0xd4280800 0x800>;
100        bus-width = <8>;
101        interrupts = <27>;
102        clocks = <&chip CLKID_SDIO1XIN>, <&chip CLKID_SDIO1>;
103        clock-names = "io", "core";
104        non-removable;
105        mrvl,clk-delay-cycles = <31>;
106    };
107  - |
108    mmc@d8000 {
109        compatible = "marvell,armada-380-sdhci";
110        reg-names = "sdhci", "mbus", "conf-sdio3";
111        reg = <0xd8000 0x1000>,
112              <0xdc000 0x100>,
113              <0x18454 0x4>;
114        interrupts = <0 25 0x4>;
115        clocks = <&gateclk 17>;
116        clock-names = "io";
117        mrvl,clk-delay-cycles = <0x1F>;
118    };
119
120...
121