ti,secure-proxy.txt

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    1 Texas Instruments' Secure Proxy
    2 ========================================
    3 
    4 The Texas Instruments' secure proxy is a mailbox controller that has
    5 configurable queues selectable at SoC(System on Chip) integration. The
    6 Message manager is broken up into different address regions that are
    7 called "threads" or "proxies" - each instance is unidirectional and is
    8 instantiated at SoC integration level by system controller to indicate
    9 receive or transmit path.
   10 
   11 Message Manager Device Node:
   12 ===========================
   13 Required properties:
   14 --------------------
   15 - compatible:           Shall be "ti,am654-secure-proxy"
   16 - reg-names             target_data - Map the proxy data region
   17                         rt - Map the realtime status region
   18                         scfg - Map the configuration region
   19 - reg:                  Contains the register map per reg-names.
   20 - #mbox-cells           Shall be 1 and shall refer to the transfer path
   21                         called thread.
   22 - interrupt-names:      Contains interrupt names matching the rx transfer path
   23                         for a given SoC. Receive interrupts shall be of the
   24                         format: "rx_<PID>".
   25 - interrupts:           Contains the interrupt information corresponding to
   26                         interrupt-names property.
   27 
   28 Example(AM654):
   29 ------------
   30 
   31         secure_proxy: mailbox@32c00000 {
   32                 compatible = "ti,am654-secure-proxy";
   33                 #mbox-cells = <1>;
   34                 reg-names = "target_data", "rt", "scfg";
   35                 reg = <0x0 0x32c00000 0x0 0x100000>,
   36                       <0x0 0x32400000 0x0 0x100000>,
   37                       <0x0 0x32800000 0x0 0x100000>;
   38                 interrupt-names = "rx_011";
   39                 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
   40         };
   41 
   42         dmsc: dmsc {
   43                 [...]
   44                 mbox-names = "rx", "tx";
   45                 # RX Thread ID is 11
   46                 # TX Thread ID is 13
   47                 mboxes= <&secure_proxy 11>,
   48                         <&secure_proxy 13>;
   49                 [...]
   50         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/mailbox/ti,secure-proxy.txt

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sys/contrib/device-tree/Bindings/mailbox/ti,secure-proxy.txt