Can anyone give me some good web links and/or documents that would get me 
started working with and modifying the Device Tree for both the BeagleBone 
AI and BeagleBoard X15?  (Or probably for BeagleBone Black would also help 
a bunch)  I have been monitoring these Beagleboard Google groups for a 
while now and I believe I have some idea of what needs to be done but if 
there is a "how to" out there it would save me time.  From what I have 
gathered, it sounds like the modified device tree can be modified and 
recompiled on the BeagleBoard X15 (or AI) itself not requiring a separate 
cross compiling computer.  (If I need to, I can setup a cross compiling 
system).  I come at these TI processors looking at the DSP cores first when 
it comes to I/O and peripherals and then Linux comes second.  I am 
switching from the OMAPL138 processor to these AM5729 processors.  Because 
I come at these processors from the DSP end I find it much easier to 
perform I/O and peripheral setup from Linux using dev/mem like this 
discussion 
https://groups.google.com/forum/#!category-topic/beagleboard/beaglebone-ai/uKoSJUQaXH4
  
During this time of COVID-19 shutdown I thought I could figure out how to 
doing things the correct Linux way and device trees is the first step.    

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