I need to enable uio_pruss (you already kindly provided instructions on how 
to do that a few months ago).
I just need to figure out which *.dtb to rebuild. If I make a mistake and 
brick the BBBW, it will be difficult for me to fix it,
so I'm being cautious. However, after posting I realized that if I guess 
the wrong *.dtb, it won't get loaded so shouldn't be a problem.
So I chose am335x-boneblack-wireless.dtb... and of course you will know 
that worked.

I'd still like to understand how the proper *.dtb is specified or 
discovered by uboot.


On Thursday, December 21, 2017 at 9:10:39 AM UTC-8, RobertCNelson wrote:
>
> On Thu, Dec 21, 2017 at 11:06 AM, ags <[email protected] <javascript:>> 
> wrote: 
> > How can I see which dtb file is being loaded? I've looked at 
> /boot/uEnv.txt 
> > but nothing is specified there - all lines are commented other than 
> > uname=..., uuid=... and: 
> > 
> > cmdline=coherent_pool=1M quiet cape_universal=enable 
> > 
> > I believe I'm using an older uboot. Where/how is the dtb file specified? 
> I 
> > see two likely candidates: 
> > 
> > /boot/dtbs/4.4.30-ti-r64/am335x-boneblack-wireless.dtb 
> > /boot/dtbs/4.4.30-ti-r64/am335x-boneblack-wl1835mod.dtb 
> > 
> > I first tried installing a new version of the "standard" dtb but that 
> didn't 
> > work so I presume it is not the one used for BBBW: 
> > 
> > /boot/dtbs/4.4.30-ti-r64/am335x-boneblack.dtb 
> > 
> > I'm stumped trying to figure out where this is specified. dmesg did not 
> help 
> > either... 
> > 
> > Thanks in advance. 
>
> U-Boot will correctly pick the correct dtb. 
>
> What issues are you seeing? 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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