DMTimer or PWM via Device Tree and/or Sysfs

Hi all,

Is it possible to enable an external clock signal (preferably by way of Timer7) on the Beaglebone Black via just the device tree? A combination of the device tree and sysfs? I’ve been able to get these working through Starterware, but have not been successful under Debian. I’ve tried tweaking stuff with overlays, but I don’t really see anything in the bindings or in sysfs that speaks to the registers as I would recognize them (although I see 4804a000.timer in various locations and that address looks consistent with what I’ve manipulated in Starterware). Ideally I would like to be able to enable an external signal via DMTimer 7, but one of the PWMs would be good too. I’m find of a noob at all of this, so any help appreciated! BTW, the version of Debian I’m running is: Linux beaglebone 3.8.13-bone70 #1 SMP Fri Jan 23 02:15:42 UTC 2015 armv7l GNU/Linux