Okay, starting with r34, (4.4.14-ti-r34/4.4.14-ti-rt-r34) You can swap between rproc and uio for the pruss...
while, uio can be loaded as an overlay, rproc was failing, so we need to use the dtb-rebuilder... Step 1: upgrade to r34 and reboot: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#4.4.x-ti Step 2: Install dtb-rebuilder: git clone -b 4.4-ti https://github.com/RobertCNelson/dtb-rebuilder dtb-4.4-ti --depth=1 cd ./dtb-4.4-ti/ Step 3: (rproc) Edit your device tree: https://github.com/RobertCNelson/dtb-rebuilder/blob/4.4-ti/src/arm/am335x-bonegreen.dts#L16-L22 nano src/arm/am335x-bonegreen.dts Change: /* #include "am33xx-pruss-rproc.dtsi" */ -> #include "am33xx-pruss-rproc.dtsi" make ; sudo make install set blacklist: cat /etc/modprobe.d/pruss-blacklist.conf blacklist uio_pruss and reboot.. debian@beaglebone:~$ dmesg | grep pru [ 3.006675] ti-pruss 4a300000.pruss: creating PRU cores and other child platform devices [ 3.007791] irq: no irq domain found for /ocp/pruss@4a300000/intc@4a320000 ! [ 3.008351] irq: no irq domain found for /ocp/pruss@4a300000/intc@4a320000 ! [ 3.028561] remoteproc1: 4a334000.pru0 is available [ 3.036995] remoteproc1: Direct firmware load for am335x-pru0-fw failed with error -2 [ 3.037020] remoteproc1: failed to load am335x-pru0-fw [ 3.042449] pru-rproc 4a334000.pru0: booting the PRU core manually [ 3.042463] remoteproc1: powering up 4a334000.pru0 [ 3.042529] remoteproc1: Direct firmware load for am335x-pru0-fw failed with error -2 [ 3.047670] pru-rproc 4a334000.pru0: rproc_boot failed [ 3.083760] remoteproc1: releasing 4a334000.pru0 [ 3.083905] pru-rproc: probe of 4a334000.pru0 failed with error -2 [ 3.084240] remoteproc1: 4a338000.pru1 is available [ 3.084464] remoteproc1: Direct firmware load for am335x-pru1-fw failed with error -2 [ 3.084482] remoteproc1: failed to load am335x-pru1-fw [ 3.092879] pru-rproc 4a338000.pru1: booting the PRU core manually [ 3.092899] remoteproc1: powering up 4a338000.pru1 [ 3.092979] remoteproc1: Direct firmware load for am335x-pru1-fw failed with error -2 [ 3.098136] pru-rproc 4a338000.pru1: rproc_boot failed [ 3.135593] remoteproc1: releasing 4a338000.pru1 [ 3.135739] pru-rproc: probe of 4a338000.pru1 failed with error -2 Step 3: (uio) Edit your device tree: https://github.com/RobertCNelson/dtb-rebuilder/blob/4.4-ti/src/arm/am335x-bonegreen.dts#L24-L32 nano src/arm/am335x-bonegreen.dts Change: /* #include "am33xx-pruss-uio.dtsi" */ -> #include "am33xx-pruss-uio.dtsi" make ; sudo make install set blacklist: cat /etc/modprobe.d/pruss-blacklist.conf blacklist pruss blacklist pruss_intc blacklist pru-rproc and reboot.. debian@beaglebone:~$ dmesg | grep pru [ 11.582433] pruss_uio 4a300000.pruss: pins are not configured from the driver debian@beaglebone:~$ lsmod | grep uio uio_pruss 4928 0 uio_pdrv_genirq 3539 0 uio 8822 2 uio_pruss,uio_pdrv_genirq Regards, -- Robert Nelson https://rcn-ee.com/ -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYiqFZ%3Dimsyn7nfJDHGuYd45QOoBDBi_eJfDmsRMEBy_YA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
