51 lines
1.6 KiB
Plaintext
51 lines
1.6 KiB
Plaintext
Texas Instruments' Secure Proxy
|
|
========================================
|
|
|
|
The Texas Instruments' secure proxy is a mailbox controller that has
|
|
configurable queues selectable at SoC(System on Chip) integration. The
|
|
Message manager is broken up into different address regions that are
|
|
called "threads" or "proxies" - each instance is unidirectional and is
|
|
instantiated at SoC integration level by system controller to indicate
|
|
receive or transmit path.
|
|
|
|
Message Manager Device Node:
|
|
===========================
|
|
Required properties:
|
|
--------------------
|
|
- compatible: Shall be "ti,am654-secure-proxy"
|
|
- reg-names target_data - Map the proxy data region
|
|
rt - Map the realtime status region
|
|
scfg - Map the configuration region
|
|
- reg: Contains the register map per reg-names.
|
|
- #mbox-cells Shall be 1 and shall refer to the transfer path
|
|
called thread.
|
|
- interrupt-names: Contains interrupt names matching the rx transfer path
|
|
for a given SoC. Receive interrupts shall be of the
|
|
format: "rx_<PID>".
|
|
- interrupts: Contains the interrupt information corresponding to
|
|
interrupt-names property.
|
|
|
|
Example(AM654):
|
|
------------
|
|
|
|
secure_proxy: mailbox@32c00000 {
|
|
compatible = "ti,am654-secure-proxy";
|
|
#mbox-cells = <1>;
|
|
reg-names = "target_data", "rt", "scfg";
|
|
reg = <0x0 0x32c00000 0x0 0x100000>,
|
|
<0x0 0x32400000 0x0 0x100000>,
|
|
<0x0 0x32800000 0x0 0x100000>;
|
|
interrupt-names = "rx_011";
|
|
interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
|
|
};
|
|
|
|
dmsc: dmsc {
|
|
[...]
|
|
mbox-names = "rx", "tx";
|
|
# RX Thread ID is 11
|
|
# TX Thread ID is 13
|
|
mboxes= <&secure_proxy 11>,
|
|
<&secure_proxy 13>;
|
|
[...]
|
|
};
|