1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mailbox/st,sti-mailbox.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: STMicroelectronics Mailbox Driver for STi platform
8
9 description:
10 Each ST Mailbox IP currently consists of 4 instances of 32 channels.
11 Messages are passed between Application and Remote processors using
12 shared memory.
13
14 maintainers:
15 - Patrice Chotard <patrice.chotard@foss.st.com>
16
17 properties:
18 compatible:
19 const: st,stih407-mailbox
20
21 reg:
22 maxItems: 1
23
24 mbox-name:
25 $ref: /schemas/types.yaml#/definitions/string
26 description: name of the mailbox IP
27
28 interrupts:
29 description: the irq line for the RX mailbox
30 maxItems: 1
31
32 "#mbox-cells":
33 const: 2
34
35 required:
36 - compatible
37 - reg
38 - "#mbox-cells"
39
40 additionalProperties: false
41
42 examples:
43 - |
44 #include <dt-bindings/interrupt-controller/arm-gic.h>
45 mailbox0: mailbox@8f00000 {
46 compatible = "st,stih407-mailbox";
47 reg = <0x8f00000 0x1000>;
48 interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
49 #mbox-cells = <2>;
50 mbox-name = "a9";
51 };
52
53 ...
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