Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/4d3521cc79cabc61edf12c48c0ce318d4efb712f/board/ads5121 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/board/ads5121
Wolfgang Denk 8d103071b7 ADS5121: Fix typo in ads5121.c, adjust default environment 18 years ago
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Makefile [ADS5121] Support for the ADS5121 board 18 years ago
ads5121.c ADS5121: Fix typo in ads5121.c, adjust default environment 18 years ago
config.mk [ADS5121] Support for the ADS5121 board 18 years ago
u-boot.lds Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections 18 years ago