tjh.dev
Linux kernel mirror (for testing)
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1# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mailbox/qcom,cpucp-mbox.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm Technologies, Inc. CPUCP Mailbox Controller
8
9maintainers:
10 - Sibi Sankar <quic_sibis@quicinc.com>
11
12description:
13 The CPUSS Control Processor (CPUCP) mailbox controller enables communication
14 between AP and CPUCP by acting as a doorbell between them.
15
16properties:
17 compatible:
18 oneOf:
19 - items:
20 - enum:
21 - qcom,glymur-cpucp-mbox
22 - const: qcom,x1e80100-cpucp-mbox
23 - enum:
24 - qcom,x1e80100-cpucp-mbox
25
26 reg:
27 items:
28 - description: CPUCP rx register region
29 - description: CPUCP tx register region
30
31 interrupts:
32 maxItems: 1
33
34 "#mbox-cells":
35 const: 1
36
37required:
38 - compatible
39 - reg
40 - interrupts
41 - "#mbox-cells"
42
43additionalProperties: false
44
45examples:
46 - |
47 #include <dt-bindings/interrupt-controller/arm-gic.h>
48
49 mailbox@17430000 {
50 compatible = "qcom,x1e80100-cpucp-mbox";
51 reg = <0x17430000 0x10000>, <0x18830000 0x10000>;
52 interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
53 #mbox-cells = <1>;
54 };