This software has been modified by Microchip Technology Inc. to add support for the following SoC's:
- lan966x_b0: LAN966X revision B - BL1 secure bootrom
- lan969x_a0: LAN969X revision A - BL1 secure bootrom
It is possible to build the software by following the normal TFA guidelines, but the (Ruby) wrapper scripts/build.rb script is offered as it ensures using the proper options for the platform. Refer to the script help (--help option).
You should be able to compile the software using Ubuntu 22.04, but in order to shield you from platform software issues, you should consider using docker, along with a wrapper script - see https://github.com/microchip-ung/docker-run for more info. So with docker install, just run dr ./scripts/build.rb .... (At first run it docker will download a docker image, but after that the overhead is minimal).
Warning
The keys found in the keys/ directory are purely for demonstration purposes and must be replaced with own keys before software deployment.
Orignial TF-A Readme file below:
Trusted Firmware-A (TF-A) is a reference implementation of secure world software for Arm A-Profile architectures (Armv8-A and Armv7-A), including an Exception Level 3 (EL3) Secure Monitor. It provides a suitable starting point for productization of secure world boot and runtime firmware, in either the AArch32 or AArch64 execution states.
TF-A implements Arm interface standards, including:
- Power State Coordination Interface (PSCI)
- Trusted Board Boot Requirements CLIENT (TBBR-CLIENT)
- SMC Calling Convention
- System Control and Management Interface (SCMI)
- Software Delegated Exception Interface (SDEI)
The code is designed to be portable and reusable across hardware platforms and software models that are based on the Armv8-A and Armv7-A architectures.
In collaboration with interested parties, we will continue to enhance TF-A with reference implementations of Arm standards to benefit developers working with Armv7-A and Armv8-A TrustZone technology.
Users are encouraged to do their own security validation, including penetration testing, on any secure world code derived from TF-A.
To find out more about Trusted Firmware-A, please view the full documentation that is available through trustedfirmware.org.
Copyright (c) 2013-2019, Arm Limited and Contributors. All rights reserved.