just installed Armbian_20.05.0_Arm-64_bullseye_current_5.6.0-rc6_20200326.img.xz on beelink gt-1 (amlogic s912) with FDT=/dtb/amlogic/meson-gxm-q200.dtb and.. all works! but until i'm trying to upgrade or some packages to upgrade some of system libs.. lan dont working (cable, wifi working). in dmesg there's lines
[ 2590.051321] meson8b-dwmac c9410000.ethernet eth0: no phy at addr -1
[ 2590.051343] meson8b-dwmac c9410000.ethernet eth0: stmmac_open: Cannot attach to PHY (error: -19)
last thing before its became broken was upgrading: sudo apt-get install binutils (full log in spoiler
things like apt-cache showpkg libbinutils or sudo apt-get install binutils-aarch64-linux-gnu-2.34.4 gives nothing, and in http://ftp.debian.org/debian/pool/main/b/binutils/ no such version. but maybe thats not a reason of broken lan.. please help to repair it..