xref: /freebsd/sys/contrib/device-tree/Bindings/ata/ahci-platform.yaml (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/ata/ahci-platform.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: AHCI SATA Controller
8
9description: |
10  SATA nodes are defined to describe on-chip Serial ATA controllers.
11  Each SATA controller should have its own node.
12
13  It is possible, but not required, to represent each port as a sub-node.
14  It allows to enable each port independently when dealing with multiple
15  PHYs.
16
17maintainers:
18  - Hans de Goede <hdegoede@redhat.com>
19  - Jens Axboe <axboe@kernel.dk>
20
21select:
22  properties:
23    compatible:
24      contains:
25        enum:
26          - brcm,iproc-ahci
27          - cavium,octeon-7130-ahci
28          - hisilicon,hisi-ahci
29          - ibm,476gtr-ahci
30          - marvell,armada-3700-ahci
31          - marvell,armada-8k-ahci
32          - marvell,berlin2q-ahci
33          - socionext,uniphier-pro4-ahci
34          - socionext,uniphier-pxs2-ahci
35          - socionext,uniphier-pxs3-ahci
36  required:
37    - compatible
38
39properties:
40  compatible:
41    oneOf:
42      - items:
43          - enum:
44              - brcm,iproc-ahci
45              - marvell,armada-8k-ahci
46              - marvell,berlin2-ahci
47              - marvell,berlin2q-ahci
48              - socionext,uniphier-pro4-ahci
49              - socionext,uniphier-pxs2-ahci
50              - socionext,uniphier-pxs3-ahci
51          - const: generic-ahci
52      - enum:
53          - cavium,octeon-7130-ahci
54          - hisilicon,hisi-ahci
55          - ibm,476gtr-ahci
56          - marvell,armada-3700-ahci
57
58  reg:
59    minItems: 1
60    maxItems: 2
61
62  reg-names:
63    maxItems: 1
64
65  clocks:
66    minItems: 1
67    maxItems: 3
68
69  clock-names:
70    minItems: 1
71    maxItems: 3
72
73  interrupts:
74    maxItems: 1
75
76  power-domains:
77    maxItems: 1
78
79  resets:
80    minItems: 1
81    maxItems: 3
82
83patternProperties:
84  "^sata-port@[0-9a-f]+$":
85    $ref: /schemas/ata/ahci-common.yaml#/$defs/ahci-port
86
87    anyOf:
88      - required: [ phys ]
89      - required: [ target-supply ]
90
91    unevaluatedProperties: false
92
93required:
94  - compatible
95  - reg
96  - interrupts
97
98allOf:
99  - $ref: ahci-common.yaml#
100  - if:
101      properties:
102        compatible:
103          contains:
104            const: socionext,uniphier-pro4-ahci
105    then:
106      properties:
107        resets:
108          items:
109            - description: reset line for the parent
110            - description: reset line for the glue logic
111            - description: reset line for the controller
112      required:
113        - resets
114    else:
115      if:
116        properties:
117          compatible:
118            contains:
119              enum:
120                - socionext,uniphier-pxs2-ahci
121                - socionext,uniphier-pxs3-ahci
122      then:
123        properties:
124          resets:
125            items:
126              - description: reset for the glue logic
127              - description: reset for the controller
128        required:
129          - resets
130      else:
131        properties:
132          resets:
133            maxItems: 1
134
135unevaluatedProperties: false
136
137examples:
138  - |
139    sata@ffe08000 {
140        compatible = "snps,spear-ahci";
141        reg = <0xffe08000 0x1000>;
142        interrupts = <115>;
143    };
144  - |
145    #include <dt-bindings/interrupt-controller/arm-gic.h>
146    #include <dt-bindings/clock/berlin2q.h>
147    #include <dt-bindings/ata/ahci.h>
148
149    sata@f7e90000 {
150        compatible = "marvell,berlin2q-ahci", "generic-ahci";
151        reg = <0xf7e90000 0x1000>;
152        interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
153        clocks = <&chip CLKID_SATA>;
154        #address-cells = <1>;
155        #size-cells = <0>;
156
157        hba-cap = <HBA_SMPS>;
158
159        sata0: sata-port@0 {
160            reg = <0>;
161
162            phys = <&sata_phy 0>;
163            target-supply = <&reg_sata0>;
164
165            hba-port-cap = <(HBA_PORT_FBSCP | HBA_PORT_ESP)>;
166        };
167
168        sata1: sata-port@1 {
169            reg = <1>;
170
171            phys = <&sata_phy 1>;
172            target-supply = <&reg_sata1>;
173
174            hba-port-cap = <(HBA_PORT_HPCP | HBA_PORT_MPSP | HBA_PORT_FBSCP)>;
175        };
176    };
177