Hi, I'm trying to bring up the PRU on my BeagleBone Black. I was able to get it up using UIO method, but failed with PRU_RPROC driver.
The pru-software-support-package example compiled OK. I tried PRU_Direct_Connect0 and PRU_RPMsg_Echo_Interrupt1. I copied generated .out file to /lib/firmware. BTW, there was conflicting instructions online about how to place the .out file. One mentioned copying to FILE /lib/firmware/am335x-pru0(1)-fw, and another mentioned copy to under DIRECTORY /lib/firmware/am335x-pru0(1)-fw/. I tried both, and both failed with the same symptom. I have the following output in dmesg, and it looks as if PRU_RPROC have not even tried to load the .out file. [ 77.864792] pruss 4a300000.pruss: creating PRU cores and other child platform devices [ 77.934664] remoteproc remoteproc1: 4a334000.pru is available [ 77.934794] pru-rproc 4a334000.pru: PRU rproc node /ocp/pruss_soc_bus@4a326004/pruss@0/pru@34000 probed successfully [ 77.936497] remoteproc remoteproc2: 4a338000.pru is available [ 77.936603] pru-rproc 4a338000.pru: PRU rproc node /ocp/pruss_soc_bus@4a326004/pruss@0/pru@38000 probed successfully The state file under /sys/class/remoteproc/remoteproc2 is showing "offline" my uEnv.txt file is below: uname_r=4.14.69-ti-r76 enable_uboot_overlays=1 uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo enable_uboot_cape_universal=1 And the configuration is: git:/opt/scripts/:[d837f2b02f44fabe16353fd1226bb1f64e847c93] eeprom:[A335BNLT00C02318BBBK19D2] model:[TI_AM335x_BeagleBone_Black] dogtag:[BeagleBoard.org Debian Image 2018-08-30] bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot 2018.09-00002-g0b54a51eee]:[location: dd MBR] kernel:[4.14.69-ti-r76] nodejs:[v6.14.4] uboot_overlay_options:[enable_uboot_overlays=1] uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo] uboot_overlay_options:[enable_uboot_cape_universal=1] pkg check: to individually upgrade run: [sudo apt install --only-upgrade <pkg>] pkg:[bb-cape-overlays]:[4.4.20180914.0-0rcnee0~stretch+20180914] pkg:[bb-wl18xx-firmware]:[1.20180517-0rcnee0~stretch+20180517] pkg:[kmod]:[23-2rcnee1~stretch+20171005] pkg:[librobotcontrol]:[1.0.2-git20180829.0-0rcnee0~stretch+20180830] pkg:[firmware-ti-connectivity]:[20170823-1rcnee1~stretch+20180328] groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal i2c bluetooth netdev cloud9ide gpio pwm eqep admin spi tisdk weston-launch xenomai] cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet] dmesg | grep pinctrl-single [ 1.120938] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568 dmesg | grep gpio-of-helper [ 1.132957] gpio-of-helper ocp:cape-universal: ready END Did I miss anything? Any help is really appreciated. Wei -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/2bd61b13-3c9d-4d51-a242-a3d65fc674a8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
