Now included in our Debian images & available via our GitLab, you can build a complete, working BL31 (Boot Loader stage 3.1), and replace the closed binary blob with an open-source binary that anyone can compile. From TF-A we can now build a complete working BL31 and replace the closed binary blob with an open-source binary that we can compile ourselves. U-Boot SPL 2024.01-g5557bfdc (Jan 21 2024 - 02:43:56 +0000) Trying to boot from MMC2 ## Checking hash(es) for config config-1 ... OK ## Checking hash(es) for Image atf-1 ... sha256+ OK ## Checking hash(es) for Image u-boot ... sha256+ OK ## Checking hash(es) for Image fdt-1 ... sha256+ OK ## Checking hash(es) for Image atf-2 ... sha256+ OK NOTICE: BL31: v2.10.0 (release):002d8e8 NOTICE: BL31: Built : 02:43:49, Jan 21 2024