> On Oct 11, 2018, at 7:39 PM, Robert Nelson <[email protected]> wrote:
>
>> On Thu, Oct 11, 2018 at 5:21 PM David Robb <[email protected]> wrote:
>>
>> I get the following error when trying to configure P9.12 as an input on a
>> BBGW:
>>
>> dar@arm:~$ sudo config-pin P9.12 in+
>> P9_12 pinmux file not found!
>> bash: /sys/devices/platform/ocp/ocp*P9_12_pinmux/state: No such file or
>> directory
>> Cannot write pinmux file: /sys/devices/platform/ocp/ocp*P9_12_pinmux/state
>>
>> I think this pin clashes with a BlueTooth enabled LED on the BBGW, but it's
>> the pin I have chosen for my input.
>> I cannot easily move to another pin as I have many PCBs made using this
>> input. :-(
>>
>> In previous image builds I have been able to work around this by editting
>> the src/arm/BB-BBGW-WL1835-00A0.dts file to comment out the clash.
>>
>> What are my options for a work around with these newer kernel images?
>
> Comment:
>
> https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-BBGW-WL1835-00A0.dts#L23
>
> https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-BBGW-WL1835-00A0.dts#L41-L45
>
> https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-BBGW-WL1835-00A0.dts#L123-L133
>
>>
>> Also, experiencing very slow boot times ~ 2 minutes with cape_universal
>> enabled. Ideally would like something around 10s.
>
> Yes cape_universal slows things down, so does "rt"..
>
> How many pins do you need? it would be "best" to construct an overlay
> file with just what you want to use, and have most of cape_universal
> disabled..
Can we profile the helpers themselves to optimize them? I expect loading all
the peripheral drivers is more of the problem, but it would be good to know.
>
> Regards,
>
> --
> Robert Nelson
> https://rcn-ee.com/
>
> --
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