Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/81df2bab46d3bed319e21571c68db8e0a048bbfd/drivers/sound 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/drivers/sound
Rajeshwari Shinde 6647c7ac8e Sound: WM8994: Add FDT support to codec 12 years ago
..
Makefile
samsung-i2s.c
sound.c Sound: Add FDT support to driver 12 years ago
wm8994.c Sound: WM8994: Add FDT support to codec 12 years ago
wm8994.h Sound: WM8994: Add FDT support to codec 12 years ago
wm8994_registers.h