On Mon, Mar 7, 2016 at 10:59 AM, <[email protected]> wrote: > I've spent more than a day now trying to get a custom LCD cape to work with > the latest BB-G Debian distribution (7.9, 3.8.13) and can't say I've really > made any progress though I have learned a few things. > > The LCD is wired to be compatible with the 4D systems LCD7 though without > the touchscreen, buttons, or LEDs. If I enable BB-BONE-LCD7-01:00A3 on boot > then I get a mouse pointer in the middle of the screen but this slowly fades > to a completely black screen. I was encouraged by this and figured I just > had to change the timings in the device tree to match my specific LCD. > > I downloaded the overlay sources from github/bb.org-overlays and as a test > just copied BB-BONE-LCD7-01-00A3.dts to BB-BONE-LCD7-01-00A7.dts, changed > the version string, compiled (with the updated dtc), installed, enabled > (uEnv.txt) and rebooted. The overlay actually fails to load with a > complaing that gpio0 is undefined. This is just a hint that things aren't > going to go well. The gpio0 reference is for one of the buttons which I > don't need. I tried removing the entries for the touchscreen and buttons > but then I just get complains that the 'display-timings' node is missing. > > The bottom line is that it doesn't appear that the device tree sources at > https://github.com/beagleboard/bb.org-overlays are built to work correctly > with my kernel. In fact the notes at the bottom of the page all talk about > 4.1 and no mention of 3.8. Are there corresponding sources for the 3.8 > kernel or am I better off loading a 4.1 image? I'd prefer to stay with 3.8 > as I have other hardware in this project that requires a driver that I > haven't tried yet with 4.1 but I'm willing to try if that's the best way.
That repo is 4.1 only, You can grab the 3.8 version from: https://github.com/beagleboard/linux/tree/3.8/firmware/capes Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
