Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/1fa96e80ecd5d0daeb7c76b9ceb447b442894177/drivers/pwm 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/pwm
Heiko Schocher b2f97cf279 pwm, imx6: add support for pwm modul on imx6 11 years ago
..
Makefile
pwm-imx-util.c
pwm-imx-util.h
pwm-imx.c