Your ROOT_URL in app.ini is https://src.whiteboxsystems.nl/ but you are visiting http://src.whiteboxsystems.nl/Whitebox/u-boot/src/commit/d0d7361462914cee66f97792bc314bdca67a3ea6/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
Axel Lin 48dbc74ea5 pwm: imx: Remove unreachable code 10 years ago
..
Makefile
pwm-imx-util.c pwm: imx: Remove unreachable code 10 years ago
pwm-imx-util.h
pwm-imx.c pwm: imx: Prevent NULL pointer dereference 10 years ago