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Linux/PROCESSOR-SDK-AM335X: Remoteproc error

Kenneth Joel
Prodigy 165 points
Part Number: PROCESSOR-SDK-AM335X


Tool/software: Linux

Hi,

Using Linux Processor SDK version 5.03

I believe that that remoteproc and rpmsg kernel modules are enabled by default from SDK v02.00.02.11 onward and that there is demo firmware loaded to serve as an out of box demo.
I get the following error when I try to run the same. Am I doing something wrong?

root@am335x-evm:~# echo 'am335x-pru0-fw' > /sys/class/remoteproc/remoteproc1/firmware
root@am335x-evm:~# echo 'start' > /sys/class/remoteproc/remoteproc1/state       
[ 5194.448475] remoteproc remoteproc1: powering up 4a334000.pru
[ 5194.454738] remoteproc remoteproc1: Direct firmware load for am335x-pru0-fw f
ailed with error -2
[ 5194.468127] remoteproc remoteproc1: request_firmware failed: -2
[ 5194.478859] remoteproc remoteproc1: Boot failed: -2
-sh: echo: write error: No such file or directory

  • 0
    TI__Guru** 102460 points

    Hello Kenneth,

    I assume you are following the steps in the RPMsg Quick Start Guide.

    1) Are you using the out-of-the-box SD Card created by the bin/create-sdcard.sh script?

    2) Could you show the contents of your /lib/firmware directory? As per our RemoteProc and RPMsg documentation, that is the folder that sysfs looks for firmware in.

    Regards,

    Nick

  • 0 in reply to Nick Saulnier
    Prodigy 165 points

    Hi Nick,

    Thanks for the Response. Yes, I am following the RMsg Quick Start Guide.

    1) I did use the out-of-the-box SD card created by the bin/create-sdcard-sh script.

    2) Here are the contents of /lib/firmware

    root@am335x-evm:~# cd /lib/firmware                                             
root@am335x-evm:/lib/firmware# ls                                               
LICENCE.iwlwifi_firmware    iwlwifi-8000C-31.ucode                              
am335x-bone-scale-data.bin  iwlwifi-8000C-34.ucode                              
am335x-evm-scale-data.bin   iwlwifi-8000C-36.ucode                              
am335x-pm-firmware.elf      iwlwifi-8265-21.ucode                               
am43x-evm-scale-data.bin    iwlwifi-8265-22.ucode                               
iwlwifi-3160-17.ucode       iwlwifi-8265-27.ucode                               
iwlwifi-8000C-13.ucode      iwlwifi-8265-31.ucode                               
iwlwifi-8000C-16.ucode      iwlwifi-8265-34.ucode                               
iwlwifi-8000C-21.ucode      iwlwifi-8265-36.ucode                               
iwlwifi-8000C-22.ucode      ti-connectivity                                     
iwlwifi-8000C-27.ucode      ti-pruss

  • 0 in reply to Kenneth Joel
    TI__Guru** 102460 points

    Hello Kenneth,

    In the create-sdcard.sh script, make sure that you are using the tisdk-rootfs-image, and not the tisdk-docker-rootfs-image. The stripped-down docker image does not include prebuilt PRU firmware like the complete filesystem image does. Reference our filesystem documentation for more information.

    Regards,

    Nick