Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/981219eebe3cc29f155a37951788c18786260514/arch/nios2 You should set ROOT_URL correctly, otherwise the web may not work correctly.
upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
 
 
 
 
 
 
u-boot/arch/nios2
Masahiro Yamada 0a9e7ee5bd generic-board: select SYS_GENERIC_BOARD for some architectures 10 years ago
..
cpu
include/asm generic-board: select SYS_GENERIC_BOARD for some architectures 10 years ago
lib
Kconfig
Makefile Kbuild: introduce Makefile in arch/$ARCH/ 11 years ago
config.mk generic-board: move __HAVE_ARCH_GENERIC_BOARD to Kconfig 10 years ago