Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/ad885e45702029362575cec27e4808585c279832/net 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/net
Simon Glass 0da0fcd51f net: Use new checksum functions 10 years ago
..
Kconfig
Makefile
arp.c
arp.h
bootp.c
bootp.h
cdp.c
cdp.h
checksum.c
dns.c
dns.h
eth.c
link_local.c
link_local.h
net.c
net_rand.h
nfs.c
nfs.h
ping.c
ping.h
rarp.c
rarp.h
sntp.c
sntp.h
tftp.c
tftp.h