| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | }; |