xref: /linux/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml (revision 4f2c0a4acffbec01079c28f839422e64ddeff004) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Intel Lightning Mountain(LGM) eMMC PHY
8
9maintainers:
10  - Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
11
12description: |+
13  Bindings for eMMC PHY on Intel's Lightning Mountain SoC, syscon
14  node is used to reference the base address of eMMC phy registers.
15
16  The eMMC PHY node should be the child of a syscon node with the
17  required property:
18
19  - compatible:         Should be one of the following:
20                        "intel,lgm-syscon", "syscon"
21  - reg:
22      maxItems: 1
23
24properties:
25  compatible:
26    enum:
27      - intel,lgm-emmc-phy
28      - intel,keembay-emmc-phy
29
30  "#phy-cells":
31    const: 0
32
33  reg:
34    maxItems: 1
35
36  clocks:
37    maxItems: 1
38
39  clock-names:
40    items:
41      - const: emmcclk
42
43required:
44  - "#phy-cells"
45  - compatible
46  - reg
47  - clocks
48
49additionalProperties: false
50
51examples:
52  - |
53    sysconf: chiptop@e0200000 {
54      compatible = "intel,lgm-syscon", "syscon";
55      reg = <0xe0200000 0x100>;
56      #address-cells = <1>;
57      #size-cells = <1>;
58
59      emmc_phy: emmc-phy@a8 {
60        compatible = "intel,lgm-emmc-phy";
61        reg = <0x00a8 0x10>;
62        clocks = <&emmc>;
63        #phy-cells = <0>;
64      };
65    };
66
67  - |
68    phy@20290000 {
69          compatible = "intel,keembay-emmc-phy";
70          reg = <0x20290000 0x54>;
71          clocks = <&emmc>;
72          clock-names = "emmcclk";
73          #phy-cells = <0>;
74    };
75...
76