1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/bus/arm,integrator-ap-lm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Integrator/AP Logic Module extension bus
8
9 maintainers:
10 - Linus Walleij <linusw@kernel.org>
11
12 description: The Integrator/AP is a prototyping platform and as such has a
13 site for stacking up to four logic modules (LM) designed specifically for
14 use with this platform. A special system controller register can be read to
15 determine if a logic module is connected at index 0, 1, 2 or 3. The logic
16 module connector is described in this binding. The logic modules per se
17 then have their own specific per-module bindings and they will be described
18 as subnodes under this logic module extension bus.
19
20 properties:
21 "#address-cells":
22 const: 1
23
24 "#size-cells":
25 const: 1
26
27 compatible:
28 items:
29 - const: arm,integrator-ap-lm
30
31 ranges: true
32 dma-ranges: true
33
34 patternProperties:
35 "^bus(@[0-9a-f]*)?$":
36 description: Nodes on the Logic Module bus represent logic modules
37 and are named with bus. The first module is at 0xc0000000, the second
38 at 0xd0000000 and so on until the top of the memory of the system at
39 0xffffffff. All information about the memory used by the module is
40 in ranges and dma-ranges.
41 type: object
42
43 required:
44 - compatible
45
46 required:
47 - compatible
48
49 examples:
50 - |
51 bus@c0000000 {
52 compatible = "arm,integrator-ap-lm";
53 #address-cells = <1>;
54 #size-cells = <1>;
55 ranges = <0xc0000000 0xc0000000 0x40000000>;
56 dma-ranges;
57
58 bus@c0000000 {
59 compatible = "simple-bus";
60 ranges = <0x00000000 0xc0000000 0x10000000>;
61 /* The Logic Modules sees the Core Module 0 RAM @80000000 */
62 dma-ranges = <0x00000000 0x80000000 0x10000000>;
63 #address-cells = <1>;
64 #size-cells = <1>;
65
66 serial@100000 {
67 compatible = "arm,pl011", "arm,primecell";
68 reg = <0x00100000 0x1000>;
69 interrupts-extended = <&impd1_vic 1>;
70 };
71
72 impd1_vic: interrupt-controller@3000000 {
73 compatible = "arm,pl192-vic";
74 interrupt-controller;
75 #interrupt-cells = <1>;
76 reg = <0x03000000 0x1000>;
77 valid-mask = <0x00000bff>;
78 interrupts-extended = <&pic 9>;
79 };
80 };
81 };
82
83 additionalProperties: false
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