xref: /linux/Documentation/devicetree/bindings/ufs/cdns,ufshc.yaml (revision 0d8eae7b124e2ddaee00f186fe922450faad0ed7) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/ufs/cdns,ufshc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Cadence Universal Flash Storage (UFS) Controller
8
9maintainers:
10  - Jan Kotas <jank@cadence.com>
11
12# Select only our matches, not all jedec,ufs-2.0
13select:
14  properties:
15    compatible:
16      contains:
17        enum:
18          - cdns,ufshc
19          - cdns,ufshc-m31-16nm
20  required:
21    - compatible
22
23allOf:
24  - $ref: ufs-common.yaml
25
26properties:
27  compatible:
28    items:
29      - enum:
30          - cdns,ufshc
31            # CDNS UFS HC + M31 16nm PHY
32          - cdns,ufshc-m31-16nm
33      - const: jedec,ufs-2.0
34
35  clocks:
36    minItems: 1
37    maxItems: 3
38
39  clock-names:
40    minItems: 1
41    items:
42      - const: core_clk
43      - const: phy_clk
44      - const: ref_clk
45
46  power-domains:
47    maxItems: 1
48
49  reg:
50    maxItems: 1
51
52  dma-coherent: true
53
54required:
55  - compatible
56  - clocks
57  - clock-names
58  - reg
59
60unevaluatedProperties: false
61
62examples:
63  - |
64    #include <dt-bindings/interrupt-controller/arm-gic.h>
65
66    ufs@fd030000 {
67        compatible = "cdns,ufshc", "jedec,ufs-2.0";
68        reg = <0xfd030000 0x10000>;
69        interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
70        freq-table-hz = <0 0>, <0 0>;
71        clocks = <&ufs_core_clk>, <&ufs_phy_clk>;
72        clock-names = "core_clk", "phy_clk";
73    };
74