On Wed, Mar 25, 2015 at 2:27 PM, Brandon Stafford <[email protected]> wrote:
> On Wed, Mar 25, 2015 at 2:16 PM, Robert Nelson <[email protected]> > wrote: > >> >> Right now the best thing to do is still downgrade to the 3.8 kernel, >> which is in the repo.. >> > > OK, cool. I'll do that. > Downgrading to 3.8.13-bone70 worked, and libpruio seems to work, but not > exactly the way I would expect. > When I try to load libpruio, this happens: sudo echo libpruio > /sys/devices/bone_capemgr.9/slots echo: write error: No such file or directory Here's what appears in dmesg: [ 199.719576] bone-capemgr bone_capemgr.9: part_number 'libpruio', version 'N/A' [ 199.719757] bone-capemgr bone_capemgr.9: slot #8: generic override [ 199.719802] bone-capemgr bone_capemgr.9: bone: Using override eeprom data at slot 8 [ 199.719849] bone-capemgr bone_capemgr.9: slot #8: 'Override Board Name,00A0,Override Manuf,libpruio' [ 199.726206] bone-capemgr bone_capemgr.9: slot #8: Requesting part number/version based 'libpruio-00A0.dtbo [ 199.726269] bone-capemgr bone_capemgr.9: slot #8: Requesting firmware 'libpruio-00A0.dtbo' for board-name 'Override Board Name', version '00A0' [ 199.750455] bone-capemgr bone_capemgr.9: failed to load firmware 'libpruio-00A0.dtbo' The libpruio installation instructions ( http://users.freebasic-portal.de/tjf/Projekte/libpruio/doc/html/_cha_preparation.html) say that you can also do this: sudo echo BB-BONE-PRU-01 > /sys/devices/bone_capemgr.*/slots This makes this appear in dmesg: [ 216.578880] bone-capemgr bone_capemgr.9: part_number 'BB-BONE-PRU-01', version 'N/A' [ 216.579067] bone-capemgr bone_capemgr.9: slot #9: generic override [ 216.579112] bone-capemgr bone_capemgr.9: bone: Using override eeprom data at slot 9 [ 216.579159] bone-capemgr bone_capemgr.9: slot #9: 'Override Board Name,00A0,Override Manuf,BB-BONE-PRU-01' [ 216.579411] bone-capemgr bone_capemgr.9: slot #9: Requesting part number/version based 'BB-BONE-PRU-01-00A0.dtbo [ 216.579459] bone-capemgr bone_capemgr.9: slot #9: Requesting firmware 'BB-BONE-PRU-01-00A0.dtbo' for board-name 'Override Board Name', version '00A0' [ 216.579519] bone-capemgr bone_capemgr.9: slot #9: dtbo 'BB-BONE-PRU-01-00A0.dtbo' loaded; converting to live tree [ 216.586296] bone-capemgr bone_capemgr.9: slot #9: #2 overlays [ 216.608605] omap_hwmod: pruss: failed to hardreset [ 216.625429] bone-capemgr bone_capemgr.9: slot #9: Applied #2 overlays. The "failed to hardreset" is mildly alarming, but afterwards, uio_pruss appears in lsmod and the first example works: sudo src/examples/1 FA40 EE00 EF20 E700 DC70 D680 DA30 EEF0 F3B0 EE50 EF30 E680 DB60 D8B0 D690 EE90 F390 EE00 EF10 E780 DF40 D950 D760 EEC0 F3B0 EEB0 EF90 E7A0 DF00 DE00 D800 EEB0 F350 EE90 EF80 E710 DDB0 DCE0 D7D0 EEC0 F350 EEB0 EFF0 E7C0 DE30 D8C0 D900 EEC0 F400 EE50 EF30 E6B0 DD50 D970 D8D0 EF00 F3E0 EE50 EEF0 E720 DEC0 DD00 DA40 EEB0 F370 EE30 EF20 E720 DC60 DC30 DA10 EEA0 F3C0 EDC0 EF20 E730 E020 DB50 D780 EEC0 F3A0 ED90 EF10 E800 DF80 DD70 D6E0 EEF0 F340 EE90 EFD0 E730 DD10 DA30 D7F0 EEB0 F3D0 EF20 F000 E710 DE10 DAF0 DA90 EED0 I'm not sure why the first method failed while the second worked, but I'll take it. Hopefully this will be useful to someone else out there. Few more details at https://github.com/pingswept/dev-log/blob/master/2015-03-libpruio-on-bbb.markdown Thanks for the direction, Robert. Brandon > -- 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.
