1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mailbox/ti,secure-proxy.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Texas Instruments' Secure Proxy
8
9 maintainers:
10 - Nishanth Menon <nm@ti.com>
11
12 description: |
13 The Texas Instruments' secure proxy is a mailbox controller that has
14 configurable queues selectable at SoC(System on Chip) integration. The
15 Message manager is broken up into different address regions that are
16 called "threads" or "proxies" - each instance is unidirectional and is
17 instantiated at SoC integration level by system controller to indicate
18 receive or transmit path.
19
20 properties:
21 $nodename:
22 pattern: "^mailbox@[0-9a-f]+$"
23
24 compatible:
25 const: ti,am654-secure-proxy
26
27 "#mbox-cells":
28 const: 1
29 description:
30 Contains the secure proxy thread ID used for the specific transfer path.
31
32 reg-names:
33 items:
34 - const: target_data
35 - const: rt
36 - const: scfg
37
38 reg:
39 minItems: 3
40
41 interrupt-names:
42 minItems: 1
43 maxItems: 100
44 items:
45 pattern: "^rx_[0-9]{3}$"
46 description:
47 Contains the interrupt name information for the Rx interrupt path for
48 secure proxy thread in the form 'rx_<PID>'.
49
50 interrupts:
51 minItems: 1
52 maxItems: 100
53 description:
54 Contains the interrupt information for the Rx interrupt path for secure
55 proxy.
56
57 required:
58 - compatible
59 - reg-names
60 - reg
61 - interrupt-names
62 - interrupts
63 - "#mbox-cells"
64
65 additionalProperties: false
66
67 examples:
68 - |
69 #include <dt-bindings/interrupt-controller/arm-gic.h>
70 secure_proxy: mailbox@32c00000 {
71 compatible = "ti,am654-secure-proxy";
72 #mbox-cells = <1>;
73 reg-names = "target_data", "rt", "scfg";
74 reg = <0x32c00000 0x100000>,
75 <0x32400000 0x100000>,
76 <0x32800000 0x100000>;
77 interrupt-names = "rx_011";
78 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
79 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.