That processor is supposed to have the PRUs, so I'm not sure what's
going wrong.  I don't have a BBGW to test with, but I think some other
folks have worked with this board and didn't run into any unusual
problems.

Let us know how things go with Jessie.  Using Jessie + a 4.x kernel
should be pretty straight-forward.

On 11/5/2017 7:53 PM, Daren Schwenke wrote:
> am3358bzcz100 <http://www.ti.com/lit/ds/symlink/am3358.pdf>
> 
> BBGW <https://beagleboard.org/green-wireless>
> On Sunday, November 5, 2017 at 7:59:31 PM UTC-5, Charles Steinkuehler wrote:
>>
>> On 11/5/2017 5:04 PM, Daren Schwenke wrote: 
>>> On Sunday, November 5, 2017 at 1:21:40 PM UTC-5, Daren Schwenke wrote: 
>>>> On Sunday, November 5, 2017 at 12:29:42 PM UTC-5, Charles Steinkuehler 
>>>> wrote: 
>>>>
>>>>> ...and the memory maps should point to the PRU and the chunk of SDRAM 
>>>>> allocated by the uio driver: 
>>>>>
>>>>> $ for FILE in /sys/class/uio/uio0/maps/map*/[as]* ; do echo "$FILE: 
>>>>> $(cat $FILE)" ; done 
>>>>> /sys/class/uio/uio0/maps/map0/addr: 0x4a300000 
>>>>> /sys/class/uio/uio0/maps/map0/size: 0x80000 
>>>>> /sys/class/uio/uio0/maps/map1/addr: 0x9f780000 
>>>>> /sys/class/uio/uio0/maps/map1/size: 0x40000 
>>>>>
>>>>>  debian@beaglebone:~$ for FILE in /sys/class/uio/uio0/maps/map*/[as]* 
>> ; 
>>>> do echo "$FILE: 
>>>>> $(cat $FILE)" ; done 
>>>> /sys/class/uio/uio0/maps/map0/addr: 
>>>> 0x4a300000 
>>>> /sys/class/uio/uio0/maps/map0/size: 
>>>> 0x00080000 
>>>> /sys/class/uio/uio0/maps/map1/addr: 
>>>> 0x9c940000 
>>>> /sys/class/uio/uio0/maps/map1/size: 
>>>> 0x00040000 
>>>> debian@beaglebone:~$ 
>>>> Hmm.  Do the leading zero's here matter? 
>>
>> The leading zeros don't matter. 
>>
>>>>> If any of the above doesn't match, that's probably why things are 
>>>>> going wrong. 
>>>>
>>>> Um.. the second memory address *is* actually different. Matter? 
>>
>> The first memory map (0x4a300000) is the PRU.  The second memory map 
>> is SDRAM mapped by the UIO driver, and is probably at a different 
>> address each boot (or at least it's not unexpected it would be at a 
>> different address between major kernel versions). 
>>
>>>> In any case, thank you for your expert help Charles.   
>>>> I've been stuck at this point for 3 days. 
>>
>> I'm wondering if you actually _have_ a PRU (some of the CPU variants 
>> do not).  Which flavor 'bone are you using? 
>>
>> Can you post the full part number of the TI processor (or Octavo SiP)? 
>>
>> -- 
>> Charles Steinkuehler 
>> cha...@steinkuehler.net <javascript:> 
>>
> 


-- 
Charles Steinkuehler
char...@steinkuehler.net

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