1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/ata/sata_highbank.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Calxeda AHCI SATA Controller
8
9 description: |
10 The Calxeda SATA controller mostly conforms to the AHCI interface
11 with some special extensions to add functionality, to map GPIOs for
12 activity LEDs and for mapping the ComboPHYs.
13
14 maintainers:
15 - Andre Przywara <andre.przywara@arm.com>
16
17 properties:
18 compatible:
19 const: calxeda,hb-ahci
20
21 reg:
22 maxItems: 1
23
24 interrupts:
25 maxItems: 1
26
27 dma-coherent: true
28
29 calxeda,pre-clocks:
30 $ref: /schemas/types.yaml#/definitions/uint32
31 description: |
32 Indicates the number of additional clock cycles to transmit before
33 sending an SGPIO pattern.
34
35 calxeda,post-clocks:
36 $ref: /schemas/types.yaml#/definitions/uint32
37 description: |
38 Indicates the number of additional clock cycles to transmit after
39 sending an SGPIO pattern.
40
41 calxeda,led-order:
42 description: Maps port numbers to offsets within the SGPIO bitstream.
43 $ref: /schemas/types.yaml#/definitions/uint32-array
44 minItems: 1
45 maxItems: 8
46
47 calxeda,port-phys:
48 description: |
49 phandle-combophy and lane assignment, which maps each SATA port to a
50 combophy and a lane within that combophy
51 $ref: /schemas/types.yaml#/definitions/phandle-array
52 minItems: 1
53 maxItems: 8
54 items:
55 maxItems: 2
56
57 calxeda,tx-atten:
58 description: |
59 Contains TX attenuation override codes, one per port.
60 The upper 24 bits of each entry are always 0 and thus ignored.
61 $ref: /schemas/types.yaml#/definitions/uint32-array
62 minItems: 1
63 maxItems: 8
64
65 calxeda,sgpio-gpio:
66 maxItems: 3
67 description: |
68 phandle-gpio bank, bit offset, and default on or off, which indicates
69 that the driver supports SGPIO indicator lights using the indicated
70 GPIOs.
71
72 required:
73 - compatible
74 - reg
75 - interrupts
76
77 additionalProperties: false
78
79 examples:
80 - |
81 sata@ffe08000 {
82 compatible = "calxeda,hb-ahci";
83 reg = <0xffe08000 0x1000>;
84 interrupts = <115>;
85 dma-coherent;
86 calxeda,port-phys = <&combophy5 0>, <&combophy0 0>, <&combophy0 1>,
87 <&combophy0 2>, <&combophy0 3>;
88 calxeda,sgpio-gpio =<&gpioh 5 1>, <&gpioh 6 1>, <&gpioh 7 1>;
89 calxeda,led-order = <4 0 1 2 3>;
90 calxeda,tx-atten = <0xff 22 0xff 0xff 23>;
91 calxeda,pre-clocks = <10>;
92 calxeda,post-clocks = <0>;
93 };
94
95 ...
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