xref: /linux/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml (revision 8c994eff8fcfe8ecb1f1dbebed25b4d7bb75be12) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/ata/snps,dwc-ahci-common.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Synopsys DWC AHCI SATA controller properties
8
9maintainers:
10  - Serge Semin <fancer.lancer@gmail.com>
11
12description:
13  This document defines device tree schema for the generic Synopsys DWC
14  AHCI controller properties.
15
16select: false
17
18allOf:
19  - $ref: ahci-common.yaml#
20
21properties:
22  reg:
23    maxItems: 1
24
25  interrupts:
26    maxItems: 1
27
28  clocks:
29    description:
30      Basic DWC AHCI SATA clock sources like application AXI/AHB BIU clock,
31      PM-alive clock, RxOOB detection clock, embedded PHYs reference (Rx/Tx)
32      clock, etc.
33    minItems: 1
34    maxItems: 6
35
36  clock-names:
37    minItems: 1
38    maxItems: 6
39    items:
40      oneOf:
41        - description: Application APB/AHB/AXI BIU clock
42          enum:
43            - pclk
44            - aclk
45            - hclk
46            - sata
47        - description: Power Module keep-alive clock
48          const: pmalive
49        - description: RxOOB detection clock
50          const: rxoob
51        - description: PHY Transmit Clock
52          const: asic
53        - description: PHY Receive Clock
54          const: rbc
55        - description: SATA Ports reference clock
56          const: ref
57
58  resets:
59    description:
60      At least basic application and reference clock domains resets are
61      normally supported by the DWC AHCI SATA controller.
62    minItems: 1
63    maxItems: 4
64
65  reset-names:
66    minItems: 1
67    maxItems: 4
68    items:
69      oneOf:
70        - description: Application AHB/AXI BIU clock domain reset control
71          enum:
72            - arst
73            - hrst
74        - description: Power Module keep-alive clock domain reset control
75          const: pmalive
76        - description: RxOOB detection clock domain reset control
77          const: rxoob
78        - description: Reference clock domain reset control
79          const: ref
80
81patternProperties:
82  "^sata-port@[0-9a-e]$":
83    $ref: '#/$defs/dwc-ahci-port'
84
85additionalProperties: true
86
87$defs:
88  dwc-ahci-port:
89    $ref: /schemas/ata/ahci-common.yaml#/$defs/ahci-port
90
91    properties:
92      reg:
93        minimum: 0
94        maximum: 7
95
96      snps,tx-ts-max:
97        $ref: /schemas/types.yaml#/definitions/uint32
98        description: Maximal size of Tx DMA transactions in FIFO words
99        enum: [ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 ]
100
101      snps,rx-ts-max:
102        $ref: /schemas/types.yaml#/definitions/uint32
103        description: Maximal size of Rx DMA transactions in FIFO words
104        enum: [ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 ]
105
106...
107