On Thu, Dec 17, 2015 at 12:54 PM, Richard Weinberger
<[email protected]> wrote:
> Robert,
>
> thanks for your quick reply!
>
> On Thu, Dec 17, 2015 at 7:46 PM, Robert Nelson <[email protected]> 
> wrote:
>> On Thu, Dec 17, 2015 at 12:37 PM, Richard Weinberger
>> <[email protected]> wrote:
>>> Hi!
>>>
>>> I'm using https://github.com/RobertCNelson/bb.org-overlays's
>>
>> Please only use:
>>
>> https://github.com/beagleboard/bb.org-overlays
>
> noted.
>
>> my personal one is not always in sync, (just pull/pushed out to rsync,
>> but shouldn't affect you)
>>
>>> BB-BONE-LCD4-01 overlay.
>>> On 3.8 from Debian 7.9 it works perfectly fine but on 4.1 from Debian
>>> 8.2 it won't load.
>>>
>>> root@beaglebone:~# echo "BB-BONE-LCD4-01" >
>>> /sys/devices/platform/bone_capemgr/slots
>>> -bash: echo: write error: No such file or directory
>>> /lib/firmware/BB-BONE-LCD4-01-00A1.dtbo *is* present.
>>>
>>> dmesg also does not help:
>>> [   32.040385] bone_capemgr bone_capemgr: part_number
>>> 'BB-BONE-LCD4-01', version 'N/A'
>>> [   32.040435] bone_capemgr bone_capemgr: slot #5: override
>>> [   32.040456] bone_capemgr bone_capemgr: Using override eeprom data at 
>>> slot 5
>>> [   32.040478] bone_capemgr bone_capemgr: slot #5: 'Override Board
>>> Name,00A0,Override Manuf,BB-BONE-LCD4-01'
>>
>> dmesg | grep bone ?
>
> No grep. I did a dmesg -c and then ran the echo command.

can you dump your full dmesg to pastebin.com

dmesg | pastebinit


>
>> Coulpe known issues,
>>
>> cat /proc/cmdline | grep quiet
>>
>> (doesn't work without quiet)
>
> root@beaglebone:~# cat /proc/cmdline
> console=tty0 console=ttyO0,115200n8
> bone_capemgr.enable_partno=BB-BONE-LCD4-01 root=/dev/mmcblk0p2
> rootfstype=ext4 rootwait coherent_pool=1M quiet cape_universal=enable
>
> So, "quiet" has to be present? Ok, it is.

Yeap looks fine.. most LCD4's have eeprom, so you don't need the enable_partno..

The "cape_universal=enable" could get in the way

>
>> Did you disable hdmi?
>>
>> The readme: 
>> https://github.com/beagleboard/bb.org-overlays/blob/master/readme.md
>>
>> dtb=am335x-boneblack-emmc-overlay.dtb
>
> Yes.
>
> See:
> root@beaglebone:~# cat /sys/devices/platform/bone_capemgr/slots
>  0: PF----  -1
>  1: PF----  -1
>  2: PF----  -1
>  3: PF----  -1

Sadily, in 4.1.x, we don't have a good way to show it's disable, so as
long as you have:

dtb=am335x-boneblack-emmc-overlay.dtb

in /boot/uEnv.txt

that part is good..

Regards,

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

-- 
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