Hi Robert, thanks for the reply.
model:[BeagleBoard.org_BeagleBone_AI] dogtag:[BeagleBoard.org Debian Buster IoT TIDL Image 2020-04-06] UBOOT: Booted Device-Tree:[am5729-beagleboneai.dts] UBOOT: Loaded Overlay:[BONE-I2C3] UBOOT: Loaded Overlay:[BONE-SPI1_0] UBOOT: Loaded Overlay:[BONE-SPI1_1] UBOOT: Loaded Overlay:[BONE-UART5] kernel:[4.19.94-ti-r55] nodejs:[v10.21.0] /boot/uEnv.txt Settings: uboot_overlay_options:[enable_uboot_overlays=1] uboot_overlay_options:[uboot_overlay_addr0=/lib/firmware/BONE-SPI1_0.dtbo] uboot_overlay_options:[uboot_overlay_addr1=/lib/firmware/BONE-SPI1_1.dtbo] uboot_overlay_options:[uboot_overlay_addr2=/lib/firmware/BONE-I2C3.dtbo] uboot_overlay_options:[uboot_overlay_addr3=/lib/firmware/BONE-UART5.dtbo] pkg check: to individually upgrade run: [sudo apt install --only-upgrade <pkg>] pkg:[bb-cape-overlays]:[4.14.20201021.1-0~buster+20201021] pkg:[bb-customizations]:[1.20201105.0-0~buster+20201110] pkg:[bb-usb-gadgets]:[1.20200504.0-0~buster+20200504] pkg:[bb-wl18xx-firmware]:[1.20200813.1-0~buster+20200813] pkg:[kmod]:[26-1] pkg:[librobotcontrol]:[1.0.5-git20200715.0-0~buster+20200716] pkg:[firmware-ti-connectivity]:[20190717-2rcnee1~buster+20200305] groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal bluetooth netdev i2c gpio pwm eqep remoteproc admin spi iio docker tisdk weston-launch xenomai cloud9ide] cmdline:[console=ttyS0,115200n8 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 rng_core.default_quality=100 quiet] dmesg | grep remote [ 11.132152] remoteproc remoteproc0: 58820000.ipu is available [ 11.166138] remoteproc remoteproc1: 55020000.ipu is available [ 11.203119] remoteproc remoteproc0: powering up 58820000.ipu [ 11.203139] remoteproc remoteproc0: Booting fw image dra7-ipu1-fw.xem4, size 7051536 [ 11.203195] Modules linked in: omap_remoteproc(+) virtio_rpmsg_bus remoteproc virtio virtio_ring usb_f_ncm usb_f_mass_storage usb_f_rndis u_ether libcomposite uio_pdrv_genirq uio cmemk(O) spidev [ 11.203470] [<c0851e04>] (iommu_attach_device) from [<bf09f808>] (rproc_boot+0x380/0x6ec [remoteproc]) [ 11.203508] [<bf09f808>] (rproc_boot [remoteproc]) from [<bf09fb94>] (rproc_auto_boot_callback+0x20/0x2c [remoteproc]) [ 11.203528] [<bf09fb94>] (rproc_auto_boot_callback [remoteproc]) from [<c08f4c24>] (request_firmware_work_func+0x60/0x9c) [ 11.221780] remoteproc remoteproc1: powering up 55020000.ipu [ 11.221799] remoteproc remoteproc1: Booting fw image dra7-ipu2-fw.xem4, size 3751356 [ 11.222095] remoteproc remoteproc0: registered virtio0 (type 7) [ 11.222102] remoteproc remoteproc0: remote processor 58820000.ipu is now up [ 11.225372] remoteproc remoteproc2: 40800000.dsp is available [ 11.225841] remoteproc remoteproc3: 41000000.dsp is available [ 11.443664] remoteproc remoteproc1: registered virtio1 (type 7) [ 11.443671] remoteproc remoteproc1: remote processor 55020000.ipu is now up [ 11.506742] remoteproc remoteproc2: powering up 40800000.dsp [ 11.506765] remoteproc remoteproc2: Booting fw image dra7-dsp1-fw.xe66, size 21014532 [ 11.510625] remoteproc remoteproc3: powering up 41000000.dsp [ 11.510642] remoteproc remoteproc3: Booting fw image dra7-dsp2-fw.xe66, size 21014532 [ 11.570238] remoteproc remoteproc2: registered virtio2 (type 7) [ 11.570245] remoteproc remoteproc2: remote processor 40800000.dsp is now up [ 11.578670] remoteproc remoteproc3: registered virtio3 (type 7) [ 11.578678] remoteproc remoteproc3: remote processor 41000000.dsp is now up [ 21.494466] remoteproc remoteproc4: 4b234000.pru is available [ 21.495285] remoteproc remoteproc5: 4b238000.pru is available [ 21.500830] remoteproc remoteproc6: 4b2b4000.pru is available [ 21.504067] remoteproc remoteproc7: 4b2b8000.pru is available dmesg | grep pru [ 19.761117] pruss_uio_shmem 4b200000.pruss_shmem: Allocating gdev [ 19.761126] pruss_uio_shmem 4b200000.pruss_shmem: Allocating info [ 19.761163] pruss_uio_shmem 4b200000.pruss_shmem: Requesting resource [ 19.761208] pruss_uio_shmem 4b200000.pruss_shmem: Mapping resource [ 19.761268] pruss_uio_shmem 4b200000.pruss_shmem: Registering with uio driver [ 19.763540] pruss_uio_shmem 4b200000.pruss_shmem: Saving platform data [ 19.782877] pruss_uio_shmem 4b280000.pruss_shmem: Allocating gdev [ 19.782889] pruss_uio_shmem 4b280000.pruss_shmem: Allocating info [ 19.782895] pruss_uio_shmem 4b280000.pruss_shmem: Requesting resource [ 19.782917] pruss_uio_shmem 4b280000.pruss_shmem: Mapping resource [ 19.782933] pruss_uio_shmem 4b280000.pruss_shmem: Registering with uio driver [ 19.784197] pruss_uio_shmem 4b280000.pruss_shmem: Saving platform data [ 21.494466] remoteproc remoteproc4: 4b234000.pru is available [ 21.494536] pru-rproc 4b234000.pru: PRU rproc node pru@4b234000 probed successfully [ 21.495285] remoteproc remoteproc5: 4b238000.pru is available [ 21.495349] pru-rproc 4b238000.pru: PRU rproc node pru@4b238000 probed successfully [ 21.500830] remoteproc remoteproc6: 4b2b4000.pru is available [ 21.500893] pru-rproc 4b2b4000.pru: PRU rproc node pru@4b2b4000 probed successfully [ 21.504067] remoteproc remoteproc7: 4b2b8000.pru is available [ 21.504135] pru-rproc 4b2b8000.pru: PRU rproc node pru@4b2b8000 probed successfully dmesg | grep pinctrl-single [ 1.008685] pinctrl-single 4a003400.pinmux: 282 pins, size 1128 dmesg | grep gpio-of-helper [ 1.021032] gpio-of-helper 44000000.ocp:cape-universal: ready lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub END Michele On Mon, Nov 30, 2020 at 3:40 PM Robert Nelson <robertcnel...@gmail.com> wrote: > On Sun, Nov 29, 2020 at 11:33 AM Michele Xiloyannis > <m.xiloyan...@gmail.com> wrote: > > > > Hi all, > > > > I am working with SPI, on both a BB AI and a BBBlue and on both machines > a transfer on the using the ioctl() system call (spidev1.0 interface), > takes approx 3ms. Is the kernel adding some overhead for debugging there > that could be removed? > > https://groups.google.com/g/beagleboard/c/Owld0Inun-0/m/JDfcanRb0I4J > > > > Would appreciate any help on how to do this. > > Thanks a lot and have a great Sunday. > > > SPI_DEBUG was disabled a long time ago, what image/kernel are you running? > > sudo /opt/scripts/tools/version.sh > > 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/CAOCHtYhpze%3DCVAwa%2BnHQDDV1weQXM790WFBQDKbyMa6SWhr%2B1Q%40mail.gmail.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/CANC2S_H%2BS8hQrno%2B824h_nu9iMDMEjdYEBErRFRVs%3D2aGeVTCw%40mail.gmail.com.
