0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/mailbox/ti,secure-proxy.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Texas Instruments' Secure Proxy
0008
0009 maintainers:
0010 - Nishanth Menon <nm@ti.com>
0011
0012 description: |
0013 The Texas Instruments' secure proxy is a mailbox controller that has
0014 configurable queues selectable at SoC(System on Chip) integration. The
0015 Message manager is broken up into different address regions that are
0016 called "threads" or "proxies" - each instance is unidirectional and is
0017 instantiated at SoC integration level by system controller to indicate
0018 receive or transmit path.
0019
0020 properties:
0021 $nodename:
0022 pattern: "^mailbox@[0-9a-f]+$"
0023
0024 compatible:
0025 const: ti,am654-secure-proxy
0026
0027 "#mbox-cells":
0028 const: 1
0029 description:
0030 Contains the secure proxy thread ID used for the specific transfer path.
0031
0032 reg-names:
0033 items:
0034 - const: target_data
0035 - const: rt
0036 - const: scfg
0037
0038 reg:
0039 minItems: 3
0040
0041 interrupt-names:
0042 minItems: 1
0043 maxItems: 100
0044 items:
0045 pattern: "^rx_[0-9]{3}$"
0046 description:
0047 Contains the interrupt name information for the Rx interrupt path for
0048 secure proxy thread in the form 'rx_<PID>'.
0049
0050 interrupts:
0051 minItems: 1
0052 maxItems: 100
0053 description:
0054 Contains the interrupt information for the Rx interrupt path for secure
0055 proxy.
0056
0057 required:
0058 - compatible
0059 - reg-names
0060 - reg
0061 - interrupt-names
0062 - interrupts
0063 - "#mbox-cells"
0064
0065 additionalProperties: false
0066
0067 examples:
0068 - |
0069 #include <dt-bindings/interrupt-controller/arm-gic.h>
0070 secure_proxy: mailbox@32c00000 {
0071 compatible = "ti,am654-secure-proxy";
0072 #mbox-cells = <1>;
0073 reg-names = "target_data", "rt", "scfg";
0074 reg = <0x32c00000 0x100000>,
0075 <0x32400000 0x100000>,
0076 <0x32800000 0x100000>;
0077 interrupt-names = "rx_011";
0078 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
0079 };
