systemd-boot on rpi4?

Hi! Trying http://download.opensuse.org/ports/aarch64/tumbleweed/appliances/openSUSE-Mi... on an rpi400 (after adding necessary boot files). The u-boot there does not seem to support writing UEFI variables. That's rather crucial to systemd-boot to eg. specify what to boot next. Is that a generally missing feature of u-boot, or is it possible somehow to make u-boot store uefi variables eg in the efi partition? cu Ludwig -- (o_ Ludwig Nussel //\ V_/_ http://www.suse.com/ SUSE Software Solutions Germany GmbH; GF: Ivo Totev, Andrew McDonald, Werner Knoblich; HRB 36809 (AG Nürnberg)