Extract the 7z file in the same folder as Armbian-unofficial_26.02.0-trunk_Luckfox-lyra-ultra-w_trixie_vendor_6.1.115_minimal.img
Then do:
dd if=uboot.img of=Armbian-unofficial_26.02.0-trunk_Luckfox-lyra-ultra-w_trixie_vendor_6.1.115_minimal.img bs=32k seek=1 conv=notrunc
Then you have an old Rockchip 2017.09 u-boot, my guess it that that shall work with 6.1.115
But you are the first one, the tester of it.
Also, I did a 32-bit rockchip edge kernel test build and I see no DTB file for Luckfox-lyra-ultra-w
That means it is not supported for mainline. At least it seems correct that one cannot build a working image now as legacy u-boot is not available anymore.
In theory, the 2025.10-rc4 u-boot might be such that you can get a mainlne edge rockchip kernel running, EFI booted maybe, but expect same strange errors or freezes.
@Malay delete patch/u-boot/u-boot-aw/99-dump-dram-controller-regs.patch. Using your compiler it causes a fatal error. The compiler I'm using it creates a warning. You don't need it anyways, it's for ram debug messages. I removed it from my repository,
