On Wed, Mar 12, 2014 at 4:05 PM, Bit Pusher <[email protected]> wrote:
> Thanks John, this worked. I also tried modifying
> /lib/firmware/cape-boneblack-hdmi-00A0.dts to remove the conflicts (without
> disabling HDMI in /boot/uboot/uEnv.txt) , and then recompiled to make a new
> /lib/firmware/cape-boneblack-hdmi-00A0.dtbo,
> but dmesg still reported a conflict with P9_25 even though P9_25 and mcasp0
> had been removed. This indicates to me that
> /lib/firmware/cape-boneblack-hdmi-00A0.dtbo is not being read from
> /lib/firmware at boot; do you know where it is being read from? Or can you
> point me to a link for the process and places of loading overlay files on
> the Ubuntu BBB at boot? I am really having difficulties finding
> documentation regarding this so any helpful links are appreciated.

With the current kernel config, all "firmware" is built into the
kernel.  We could disable that, but then it could take udev up to 60
seconds to actually find it on debian/ubuntu based systems.  Best
thing to do is disable all the capes in uEnv.txt then write an init
script to load that specific *.dtbo into the slot early in bootup.

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

-- 
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