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Add the option to configure the atf to load the optee-os binary: BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL32_OPTEE=y Without this, everything was still booting, and even though the versal2_plm was loading the optee-os to its runtime location, it was never actually loaded by the atf. With this option enabled, atf is now properly loading optee with the boot log below. NOTICE: BL31: Executing from 0xbbf00000 NOTICE: BL31: Secure code at 0x1800000 NOTICE: BL31: Non secure code at 0x40000000 NOTICE: BL31: v2.14.0(release):custom NOTICE: BL31: Built : 08:41:36, Aug 25 2026 KATs execution completed. In task dispatch loop I/TC: I/TC: Non-secure external DT found I/TC: pl011: device parameters ignored (115200n8) I/TC: Switching console to device: /axi/serial@f1930000 I/TC: OP-TEE version: Unknown_4.9 (gcc version 14.3.0 (Buildroot 2021.11-18033-g83947c7bb6)) #1 Mon Aug 24 08:45:53 UTC 2026 aarch64 I/TC: WARNING: This OP-TEE configuration might be insecure! I/TC: WARNING: Please check https://optee.readthedocs.io/en/latest/architecture/porting_guidelines.html I/TC: Primary CPU initializing I/TC: Cluster shift early-configured: 1 (cores per cluster: 2) I/TC: ASU initialization complete I/TC: OP-TEE OS Running on Platform AMD Versal Gen 2 I/TC: ASU ECC: NIST_P192=SW NIST_P224=SW NIST_P256=HW I/TC: ASU ECC: NIST_P384=SW NIST_P521=SW I/TC: ASU RSA driver successfully initialized I/TC: Primary CPU switching to normal world boot Signed-off-by: Neal Frager <neal.frager@amd.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at https://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches