Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/c5bded3c88e48ae648a75d357dc81a8255fa81f1/nand_spl 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/nand_spl
Stefan Roese df8a24cdd3 [ppc4xx] Fix problem with NAND booting on AMCC Acadia 18 years ago
..
board/amcc [ppc4xx] Fix problem with NAND booting on AMCC Acadia 18 years ago
nand_boot.c NAND: Add ECC support to NAND booting support in nand_spl/nand_boot.c 18 years ago