William,
I installed the 4.1.13-bone-rt-r16 kernel, and the /dev/uioX entires showed
up. I guess I'll try using this one. Thanks for the help!
Erik
On Saturday, November 21, 2015 at 9:44:14 PM UTC-8, William Hermans wrote:
>
> By the way, I had to make my own device tree overlay for the PRU. It's
> pretty simple. . . .
>
> /dts-v1/;
> /plugin/;
>
> / {
> compatible = "ti,beaglebone", "ti,beaglebone-black";
>
> /* identification */
> part-number = "pru_enable";
> version = "00A0";
>
> fragment@0 {
> target = <&pruss>;
> __overlay__ {
> status = "okay";
>
> };
> };
>
> };
>
> $ dtc -O dtb -o pru_enable-00A0.dtbo -b 0 -@ pru_enable-00A0.dts
> $ sudo cp pru_enable-00A0.dtbo /lib/firmware/
> $ sudo sh -c "echo 'pru_enable' > /sys/devices/platform/bone_capemgr/slots"
> $ dmesg | grep pru_enable
> [ 886.921624] bone_capemgr bone_capemgr: part_number 'pru_enable',
> version 'N/A'
> [ 886.941686] bone_capemgr bone_capemgr: slot #6: 'Override Board
> Name,00A0,Override Manuf,pru_enable'
> [ 886.981959] bone_capemgr bone_capemgr: slot #6: dtbo
> 'pru_enable-00A0.dtbo' loaded; overlay id #0
>
>
> On Sat, Nov 21, 2015 at 10:36 PM, William Hermans <[email protected]
> <javascript:>> wrote:
>
>> bone-rt has real time enhancements. I do not know all the differences,
>> but the kernel latency seems to be reduced.
>>
>> Anyway, you do not see what ?
>>
>> On Sat, Nov 21, 2015 at 7:08 PM, Erik Stauber <[email protected]
>> <javascript:>> wrote:
>>
>>> hmmm, i don't see that on 4.1.13-bone16. Maybe I need to use
>>> 4.1.13-bone-rt-r16? What is the difference between the bone and bone-rt?
>>>
>>>
>>>
>>> On Friday, November 20, 2015 at 2:26:38 PM UTC-8, William Hermans wrote:
>>>
>>>> The kernel I'm using by the way . . .
>>>>
>>>> $ uname -a
>>>> Linux beaglebone 4.1.9-bone-rt-r16 #1 Thu Oct 1 06:19:41 UTC 2015
>>>> armv7l GNU/Linux
>>>>
>>>> $ ls /dev/ |grep uio
>>>> uio
>>>> uio0
>>>> uio1
>>>> uio2
>>>> uio3
>>>> uio4
>>>> uio5
>>>> uio6
>>>> uio7
>>>>
>>>> $ ./lsuio
>>>> uio7: name=pruss_evt7, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>> uio6: name=pruss_evt6, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>> uio5: name=pruss_evt5, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>> uio4: name=pruss_evt4, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>> uio3: name=pruss_evt3, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>> uio2: name=pruss_evt2, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>> uio1: name=pruss_evt1, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>> uio0: name=pruss_evt0, version=1.0, events=0
>>>> map[0]: addr=0x4A300000, size=524288
>>>> map[1]: addr=0x9E880000, size=262144
>>>>
>>>>
>>>> On Fri, Nov 20, 2015 at 2:59 PM, William Hermans <[email protected]>
>>>> wrote:
>>>>
>>>>> The TI kernels have remoteproc enabled in the kernel, which will
>>>>> interfere with uio_pruss. You need to switch to a *bone* kernel.
>>>>>
>>>>> On Fri, Nov 20, 2015 at 9:59 AM, Erik Stauber <[email protected]>
>>>>> wrote:
>>>>>
>>>>>> I'm trying to migrate to 4.1 from 3.8, and it seems as if the PRU is
>>>>>> up and running on the latest 4.1 kernel. However, a difference is the
>>>>>> I'm
>>>>>> not getting the 8 uioX (x=0-8) entries in the /dev directory, and
>>>>>> therefore
>>>>>> the prussdrv library errors out when it can't find those files.
>>>>>>
>>>>>> The prussdrv is looking for this:
>>>>>> sprintf(name, "/dev/uio%d", host_interrupt);
>>>>>>
>>>>>> The dmesg output on 4.1.13-ti-r33 reports that it is skipping intr
>>>>>> mapping...
>>>>>>
>>>>>> *[ 20.830764] pru-rproc 4a334000.pru0: version 0
>>>>>> event_chnl_map_size 1 event_chnl_map 0000039c*
>>>>>> *[ 20.830799] pru-rproc 4a334000.pru0: sysevt-to-ch[60] -> 0*
>>>>>> *[ 20.830812] pru-rproc 4a334000.pru0: chnl-to-host[0] -> 0*
>>>>>> *[ 20.830823] pru-rproc 4a334000.pru0: skip intr mapping for chnl 1*
>>>>>> *[ 20.830833] pru-rproc 4a334000.pru0: skip intr mapping for chnl 2*
>>>>>> *[ 20.830844] pru-rproc 4a334000.pru0: skip intr mapping for chnl 3*
>>>>>> *[ 20.830854] pru-rproc 4a334000.pru0: skip intr mapping for chnl 4*
>>>>>> *[ 20.830864] pru-rproc 4a334000.pru0: skip intr mapping for chnl 5*
>>>>>> *[ 20.830875] pru-rproc 4a334000.pru0: skip intr mapping for chnl 6*
>>>>>> *[ 20.830885] pru-rproc 4a334000.pru0: skip intr mapping for chnl 7*
>>>>>> *[ 20.830896] pru-rproc 4a334000.pru0: skip intr mapping for chnl 8*
>>>>>> *[ 20.830906] pru-rproc 4a334000.pru0: skip intr mapping for chnl 9*
>>>>>>
>>>>>> Does anyone know how to not skip that? Or a way for me to map them
>>>>>> manually?
>>>>>>
>>>>>> Thanks,
>>>>>> Erik
>>>>>>
>>>>>>
>>>>>> --
>>>>>> For more options, visit http://beagleboard.org/discuss
>>>>>> ---
>>>>>> You received this message because you are subscribed to the Google
>>>>>> Groups "BeagleBoard" group.
>>>>>> To unsubscribe from this group and stop receiving emails from it,
>>>>>> send an email to [email protected].
>>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>>
>>>>>
>>>>>
>>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
>>> You received this message because you are subscribed to the Google
>>> Groups "BeagleBoard" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to [email protected] <javascript:>.
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>>
>
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
