On Thu, Mar 9, 2017 at 5:32 PM, Dean Gouramanis
<temproducts...@gmail.com> wrote:
> I had Optocape working last week using 4.1 kernel.
>
> https://twitter.com/deandzines/status/839979348602028033
>
> I used the am335x-boneblack-emmc-overlay.dtb and loaded my .dtbo file from
> /lib/firmware.
>
> Here is a link to the .dts
>
> https://github.com/dgouramanis/optocape/blob/master/device%20tree/BB-OPTOCAPE1-00A0.dts

So first, make sure you are using the old dtc compiler, it should be
installed in /usr/local/bin/dtc

second, for your overlay, 3.8.x needs a fb section:

https://github.com/beagleboard/linux/blob/3.8/firmware/capes/BB-BONE-LCD7-01-00A3.dts#L272-L280

with 3.8.x the usart is off by one:

https://github.com/beagleboard/linux/blob/3.8/firmware/capes/BB-UART4-00A0.dts#L41

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
website: http://www.machinekit.io blog: http://blog.machinekit.io github: 
https://github.com/machinekit
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