1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: "http://devicetree.org/schemas/reserved-memory/qcom,cmd-db.yaml#"
5$schema: "http://devicetree.org/meta-schemas/core.yaml#"
6
7title: Qualcomm Command DB
8
9description: |
10  Command DB is a database that provides a mapping between resource key and the
11  resource address for a system resource managed by a remote processor. The data
12  is stored in a shared memory region and is loaded by the remote processor.
13
14  Some of the Qualcomm Technologies Inc SoC's have hardware accelerators for
15  controlling shared resources. Depending on the board configuration the shared
16  resource properties may change. These properties are dynamically probed by the
17  remote processor and made available in the shared memory.
18
19maintainers:
20  - Bjorn Andersson <bjorn.andersson@linaro.org>
21
22allOf:
23  - $ref: "reserved-memory.yaml"
24
25properties:
26  compatible:
27    const: qcom,cmd-db
28
29required:
30  - reg
31
32unevaluatedProperties: false
33
34examples:
35  - |
36    reserved-memory {
37        #address-cells = <1>;
38        #size-cells = <1>;
39        ranges;
40
41        reserved-memory@85fe0000 {
42            reg = <0x85fe0000 0x20000>;
43            compatible = "qcom,cmd-db";
44            no-map;
45        };
46    };
47