Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/60d18d3fe9d1a5db663711063cd0d5c915af377a/board/kmc 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/kmc
Nobuhiro Iwamatsu 2035d77d79 i2c: sh_i2c: Update to new CONFIG_SYS_I2C framework 12 years ago
..
kzm9g i2c: sh_i2c: Update to new CONFIG_SYS_I2C framework 12 years ago