1*93fb0c8dSNishanth Menon# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*93fb0c8dSNishanth Menon%YAML 1.2 3*93fb0c8dSNishanth Menon--- 4*93fb0c8dSNishanth Menon$id: http://devicetree.org/schemas/mailbox/ti,secure-proxy.yaml# 5*93fb0c8dSNishanth Menon$schema: http://devicetree.org/meta-schemas/core.yaml# 6*93fb0c8dSNishanth Menon 7*93fb0c8dSNishanth Menontitle: Texas Instruments' Secure Proxy 8*93fb0c8dSNishanth Menon 9*93fb0c8dSNishanth Menonmaintainers: 10*93fb0c8dSNishanth Menon - Nishanth Menon <nm@ti.com> 11*93fb0c8dSNishanth Menon 12*93fb0c8dSNishanth Menondescription: | 13*93fb0c8dSNishanth Menon The Texas Instruments' secure proxy is a mailbox controller that has 14*93fb0c8dSNishanth Menon configurable queues selectable at SoC(System on Chip) integration. The 15*93fb0c8dSNishanth Menon Message manager is broken up into different address regions that are 16*93fb0c8dSNishanth Menon called "threads" or "proxies" - each instance is unidirectional and is 17*93fb0c8dSNishanth Menon instantiated at SoC integration level by system controller to indicate 18*93fb0c8dSNishanth Menon receive or transmit path. 19*93fb0c8dSNishanth Menon 20*93fb0c8dSNishanth Menonproperties: 21*93fb0c8dSNishanth Menon $nodename: 22*93fb0c8dSNishanth Menon pattern: "^mailbox@[0-9a-f]+$" 23*93fb0c8dSNishanth Menon 24*93fb0c8dSNishanth Menon compatible: 25*93fb0c8dSNishanth Menon const: ti,am654-secure-proxy 26*93fb0c8dSNishanth Menon 27*93fb0c8dSNishanth Menon "#mbox-cells": 28*93fb0c8dSNishanth Menon const: 1 29*93fb0c8dSNishanth Menon description: 30*93fb0c8dSNishanth Menon Contains the secure proxy thread ID used for the specific transfer path. 31*93fb0c8dSNishanth Menon 32*93fb0c8dSNishanth Menon reg-names: 33*93fb0c8dSNishanth Menon items: 34*93fb0c8dSNishanth Menon - const: target_data 35*93fb0c8dSNishanth Menon - const: rt 36*93fb0c8dSNishanth Menon - const: scfg 37*93fb0c8dSNishanth Menon 38*93fb0c8dSNishanth Menon reg: 39*93fb0c8dSNishanth Menon minItems: 3 40*93fb0c8dSNishanth Menon 41*93fb0c8dSNishanth Menon interrupt-names: 42*93fb0c8dSNishanth Menon minItems: 1 43*93fb0c8dSNishanth Menon maxItems: 100 44*93fb0c8dSNishanth Menon items: 45*93fb0c8dSNishanth Menon pattern: "^rx_[0-9]{3}$" 46*93fb0c8dSNishanth Menon description: 47*93fb0c8dSNishanth Menon Contains the interrupt name information for the Rx interrupt path for 48*93fb0c8dSNishanth Menon secure proxy thread in the form 'rx_<PID>'. 49*93fb0c8dSNishanth Menon 50*93fb0c8dSNishanth Menon interrupts: 51*93fb0c8dSNishanth Menon minItems: 1 52*93fb0c8dSNishanth Menon maxItems: 100 53*93fb0c8dSNishanth Menon description: 54*93fb0c8dSNishanth Menon Contains the interrupt information for the Rx interrupt path for secure 55*93fb0c8dSNishanth Menon proxy. 56*93fb0c8dSNishanth Menon 57*93fb0c8dSNishanth Menonrequired: 58*93fb0c8dSNishanth Menon - compatible 59*93fb0c8dSNishanth Menon - reg-names 60*93fb0c8dSNishanth Menon - reg 61*93fb0c8dSNishanth Menon - interrupt-names 62*93fb0c8dSNishanth Menon - interrupts 63*93fb0c8dSNishanth Menon - "#mbox-cells" 64*93fb0c8dSNishanth Menon 65*93fb0c8dSNishanth MenonadditionalProperties: false 66*93fb0c8dSNishanth Menon 67*93fb0c8dSNishanth Menonexamples: 68*93fb0c8dSNishanth Menon - | 69*93fb0c8dSNishanth Menon #include <dt-bindings/interrupt-controller/arm-gic.h> 70*93fb0c8dSNishanth Menon secure_proxy: mailbox@32c00000 { 71*93fb0c8dSNishanth Menon compatible = "ti,am654-secure-proxy"; 72*93fb0c8dSNishanth Menon #mbox-cells = <1>; 73*93fb0c8dSNishanth Menon reg-names = "target_data", "rt", "scfg"; 74*93fb0c8dSNishanth Menon reg = <0x32c00000 0x100000>, 75*93fb0c8dSNishanth Menon <0x32400000 0x100000>, 76*93fb0c8dSNishanth Menon <0x32800000 0x100000>; 77*93fb0c8dSNishanth Menon interrupt-names = "rx_011"; 78*93fb0c8dSNishanth Menon interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; 79*93fb0c8dSNishanth Menon }; 80