7.3.8. Morello Platform

Morello is an ARMv8-A platform that implements the capability architecture extension. The platform port present at site provides ARMv8-A architecture enablement.

Capability architecture specific changes will be added here

Further information on Morello Platform is available at info Boot Sequence

The SCP initializes the RVBAR registers to point to the AP_BL1. Once RVBAR is initialized, the primary core is powered on. The primary core boots the AP_BL1. It performs minimum initialization necessary to load and authenticate the AP firmware image (the FIP image) from the AP QSPI NOR Flash Memory into the Trusted SRAM.

AP_BL1 authenticates and loads the AP_BL2 image. AP_BL2 performs additional initializations, and then authenticates and loads the AP_BL31 and AP_BL33. AP_BL2 then transfers execution control to AP_BL31, which is the EL3 runtime firmware. Execution is finally handed off to AP_BL33, which is the non-secure world (UEFI).

SCP -> AP_BL1 -> AP_BL2 -> AP_BL31 -> AP_BL33 Build Procedure (TF-A only)

  • Obtain arm toolchain. Set the CROSS_COMPILE environment variable to point to the toolchain folder.

  • Build TF-A:

    export CROSS_COMPILE=<path-to-aarch64-gcc>/bin/aarch64-none-elf-
    make PLAT=morello all

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