Difference between revisions of "R-Car/Boards/Yocto-Gen3/v3.21.0"

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Revision as of 19:59, 29 June 2020


This page contains information on building and running Yocto on:

NOTE: USE OFFICIAL DOCUMENTATION provided with R-Car BSPs FOR H3SK/M3SK boards

Topic

SW Release Information

Board name SW name Release date Note
R-Car Starter Kit ( Premier / Pro ) Yocto v4.1.0 2020/08/06 This version does not support GFX/MMP
Yocto v3.21.0 2019/07/09 New R-Car Starter Kit Pro(RTP8J77961ASKB0SK0SA05A) is supported from 2020/07/10.
Kingfisher Infotainment Board Yocto v3.21.0 2019/08/07 To check for latest information, please refer to the meta-rcar.
New R-Car Starter Kit Pro(RTP8J77961ASKB0SK0SA05A) is supported from 2020/08/02.

Q&A site [NEW]

Do you have any question about R-Car starter Kit or Kingfisher?
Please post here(Renesas Rulz)

FAQ site [NEW]

You can check past Q&A here


Yocto versions

Poky-2.4.3 is supported with Yocto v3.21.0.
Specific commit of meta-openembedded is required.

Host PC

Ubuntu 16.04 LTS (64bit) is recommended as OS. 32bit version is not supported.

Preliminary steps

  1. Download evaluation version of proprietary graphics and multimedia drivers from Renesas.
    To download Multimedia and Graphics library and related Linux drivers, please use the following link:
    https://www.renesas.com/us/en/solutions/automotive/rcar-download/rcar-demoboard.html
    Download two files:
    R-Car_Gen3_Series_Evaluation_Software_Package_for_Linux-20190722.zip
    R-Car_Gen3_Series_Evaluation_Software_Package_of_Linux_Drivers-20190722.zip

    Graphic drivers are required for Wayland. Multimedia drivers are optional.
  2. Install required packages
    Ubuntu and Debian
    sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
         build-essential chrpath socat libsdl1.2-dev xterm python-crypto cpio python python3 \
         python3-pip python3-pexpect xz-utils debianutils iputils-ping libssl-dev
    
    Fedora
    sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \
         diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath \
         ccache perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue socat \
         SDL-devel xterm python-crypto cpio python python3 python3-pip python3-pexpect \
         ghc-lzma-conduit iputils openssl
    
    Refer to Yocto Project Quick Start for more information.

Building the BSP for Renesas H3 Starter Kit, M3 Starter Kit

NOTE: to have ADAS View and HAD Solution kits supported follow instructions: R-Car Yocto Gen3 ADAS

Build using script

This example is for H3ULCB board.
If you use other board, you need to modify the script.

  1. Directory Structure
    |--build.sh
    `--proprietary
       |--R-Car_Gen3_Series_Evaluation_Software_Package_for_Linux-20190722.zip
       `--R-Car_Gen3_Series_Evaluation_Software_Package_of_Linux_Drivers-20190722.zip
    
  2. Build script(build.sh)
    #!/bin/bash
    
    #Set the target board
    TARGET_BOARD=h3ulcb
    #TARGET_BOARD=m3ulcb
    
    # Create a directory and switch to it
    mkdir $TARGET_BOARD
    cd $TARGET_BOARD
    WORK=`pwd`
    echo $WORK
    
    # Clone basic Yocto layers in parallel
    git clone git://git.yoctoproject.org/poky &
    git clone git://git.linaro.org/openembedded/meta-linaro.git &
    git clone git://git.openembedded.org/meta-openembedded &
    git clone git://github.com/renesas-rcar/meta-renesas &
    
    # Wait for all clone operations
    wait
    
    # Switch to proper branches/commits
    cd $WORK/poky
    git checkout -b tmp 7e7ee662f5dea4d090293045f7498093322802cc
    cd $WORK/meta-openembedded
    git checkout -b tmp 352531015014d1957d6444d114f4451e241c4d23
    cd $WORK/meta-linaro
    git checkout -b tmp 75dfb67bbb14a70cd47afda9726e2e1c76731885
    cd $WORK/meta-renesas
    git checkout -b tmp 59e8d5674348e2b3d14ac4552231809ab10ab84e
    
    # Populate meta-renesas with proprietary software packages
    cd $WORK/meta-renesas
    sh meta-rcar-gen3/docs/sample/copyscript/copy_evaproprietary_softwares.sh -f $WORK/../proprietary
    
    cd $WORK
    source poky/oe-init-build-env $WORK/build
    
    #cp $WORK/meta-renesas/meta-rcar-gen3/docs/sample/conf/${TARGET_BOARD}/poky-gcc/bsp/*.conf ./conf/.
    #cp $WORK/meta-renesas/meta-rcar-gen3/docs/sample/conf/${TARGET_BOARD}/poky-gcc/gfx-only/*.conf ./conf/.
    cp $WORK/meta-renesas/meta-rcar-gen3/docs/sample/conf/${TARGET_BOARD}/poky-gcc/mmp/*.conf ./conf/
    
    cd $WORK/build
    cp conf/local-wayland.conf conf/local.conf
    echo 'DISTRO_FEATURES_append = " use_eva_pkg"' >> $WORK/build/conf/local.conf
    
    bitbake core-image-weston
    
  3. build
    ./build.sh
    
    If the build completes successfully, all the necessary files are generated in a following directory:
    ./build/build/tmp/deploy/images/<target_board_name>
    

Build using manual steps

  1. Create a directory and switch to it
    Warning! Yocto builds require a lot of disk space (up to 100 GB). Make sure you have got enough before starting the build.
    mkdir build
    cd build
    export WORK=`pwd`
    
  2. Clone basic Yocto layers:
    cd $WORK
    git clone git://git.yoctoproject.org/poky
    git clone git://git.openembedded.org/meta-openembedded
    git clone git://git.linaro.org/openembedded/meta-linaro.git
    git clone git://github.com/renesas-rcar/meta-renesas
    
  3. Switch to proper branches/commits (2020/02/20 updated)
    cd $WORK/poky
    git checkout -b tmp 7e7ee662f5dea4d090293045f7498093322802cc
    cd $WORK/meta-openembedded
    git checkout -b tmp 352531015014d1957d6444d114f4451e241c4d23
    cd $WORK/meta-linaro
    git checkout -b tmp 75dfb67bbb14a70cd47afda9726e2e1c76731885
    cd $WORK/meta-renesas
    git checkout -b tmp 59e8d5674348e2b3d14ac4552231809ab10ab84e # <= 2020/02/20 updated
    
    Another versions are not tested for compatibility.
    Legacy BSP instruction can be found here R-Car Yocto Gen3 legacy
  4. Download proprietary driver modules to $WORK/proprietary folder
    You should see the following files:
    $ ls -1 $WORK/proprietary/*.zip
    R-Car_Gen3_Series_Evaluation_Software_Package_for_Linux-20190722.zip
    R-Car_Gen3_Series_Evaluation_Software_Package_of_Linux_Drivers-20190722.zip
    
  5. Populate meta-renesas with proprietary software packages.
    export PKGS_DIR=$WORK/proprietary
    cd $WORK/meta-renesas
    sh meta-rcar-gen3/docs/sample/copyscript/copy_evaproprietary_softwares.sh -f $PKGS_DIR
    unset PKGS_DIR
    
  6. Setup build environment
    cd $WORK
    source poky/oe-init-build-env $WORK/build
    
  7. Prepare default configuration files.
    cp $WORK/meta-renesas/meta-rcar-gen3/docs/sample/conf/<h3ulcb|m3ulcb>/poky-gcc/mmp/*.conf ./conf/
    cd $WORK/build
    cp conf/local-wayland.conf conf/local.conf
    
  8. (Edit $WORK/build/conf/local.conf to enable/disable graphics and multimedia proprietary drivers support)
  9. Edit local.conf with evaluation packages requirements:
    DISTRO_FEATURES_append = " use_eva_pkg"
    
  10. Start the build
    bitbake core-image-weston
    
  11. Building image can take up to a few hours depending on your host system performance.
    After the build has been completed successfully, you should see the output similar to:
    NOTE: Tasks Summary: Attempted 4704 tasks of which 31 didn't need to be rerun and all succeeded.
    
    and the command prompt should return.
  12. Bitbake has generated all the necessary files in ./tmp/deploy/images directory.
    You can verify its content:
    $ ls -1 `find ./tmp/deploy/images/h3ulcb/ -maxdepth 1 -type l -print`
    ./tmp/deploy/images/h3ulcb/core-image-weston-h3ulcb.cpio.gz
    ./tmp/deploy/images/h3ulcb/core-image-weston-h3ulcb.ext4
    ./tmp/deploy/images/h3ulcb/core-image-weston-h3ulcb.manifest
    ./tmp/deploy/images/h3ulcb/core-image-weston-h3ulcb.tar.bz2
    ./tmp/deploy/images/h3ulcb/Image
    ./tmp/deploy/images/h3ulcb/Image-h3ulcb.bin
    ./tmp/deploy/images/h3ulcb/Image-r8a7795-es1-h3ulcb.dtb
    ./tmp/deploy/images/h3ulcb/Image-r8a7795-h3ulcb-4x2g.dtb
    ./tmp/deploy/images/h3ulcb/Image-r8a7795-h3ulcb.dtb
    ./tmp/deploy/images/h3ulcb/modules-h3ulcb.tgz
    ./tmp/deploy/images/h3ulcb/u-boot.bin
    ./tmp/deploy/images/h3ulcb/u-boot-elf-h3ulcb.srec
    ./tmp/deploy/images/h3ulcb/u-boot-elf.srec
    ./tmp/deploy/images/h3ulcb/u-boot-h3ulcb.bin
    
    Image is a Kernel image, *.dtb is a blob file, core-image-weston-h3ulcb.tar.bz2 is the rootfs, modules-h3ulcb.tgz are kernel modules.
  13. You can now proceed with running Yocto images

Build SDK

  • After building BSP you may build SDK:
    bitbake core-image-weston -c populate_sdk
    
  • After build finished the SDK installation script may be found in following path:
    tmp/deploy/sdk/poky-glibc-x86_64-core-image-weston-aarch64-toolchain-*.sh
    
  • Install SDK by run the following command and follow instructions on the screen:
    ./tmp/deploy/sdk/poky-glibc-x86_64-core-image-weston-aarch64-toolchain-*.sh
    

Running Yocto images

Linux kernel can be booted from microSD card or from TFTP. Root FS can be mounted from micro SD card or via NFS.

Loading kernel via TFTP and rootfs via NFS

Follow these steps to setup working TFTP and NFS server:

  1. Setup a TFTP server.
    Ubuntu
    Install tftpd-hpa package along with tftp tools:
    sudo apt-get install tftp tftpd-hpa
    
    Fedora
    1. Install necessary packages:
      sudo yum install tftp-server tftp
      
      tftp-server is a part of xinetd. See Fedora manual for more information.
    2. Enable TFTP server:
      sudo vi /etc/xinetd.d/tftp
      
      Set
      disable = no
      
      Save file and exit.
    3. Start xinetd:
      sudo systemctl start xinetd.service
      sudo systemctl enable xinetd.service
      
  2. Copy Image and Image-r8a7795-h3ulcb.dtb (for ws2.0 silicon) and/or Image-r8a7795-h3ulcb-4x2g.dtb (for RTP0RC77951SKBX010SA03(DDR 8GiB)) and/or Image-r8a7795-es1-h3ulcb.dtb (for ws1.1) from $WORK/build/tmp/deploy/images/h3ulcb/ to TFTP server root.
    Ubuntu
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image /srv/tftp/
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image-r8a7795-es1-h3ulcb.dtb /srv/tftp/
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image-r8a7795-h3ulcb.dtb /srv/tftp/
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image-r8a7795-h3ulcb-4x2g.dtb /srv/tftp/
    
    Fedora
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image /var/lib/tftpboot/
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image-r8a7795-es1-h3ulcb.dtb /var/lib/tftpboot/
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image-r8a7795-h3ulcb.dtb /var/lib/tftpboot/
    cp $WORK/build/tmp/deploy/images/h3ulcb/Image-r8a7795-h3ulcb-4x2g.dtb /var/lib/tftpboot/
    
    Which version is my H3SK board?
  3. Verify that TFTP server is working.
    tftp localhost -c get Image && ls Image
    
  4. Setup NFS server.
    Debian/Ubuntu
    1. Install necessary packages:
      sudo apt-get install nfs-kernel-server nfs-common
      
    2. Start NFS server:
      sudo /etc/init.d/nfs-kernel-server start
      
    Fedora
    1. Install necessary packages:
      • sudo yum install nfs-utils
        
    2. Enable and start nfs server:
      sudo systemctl enable rpcbind.service 
      sudo systemctl enable nfs-server.service 
      sudo systemctl enable nfs-lock.service 
      sudo systemctl enable nfs-idmap.service
      sudo systemctl start rpcbind.service 
      sudo systemctl start nfs-server.service 
      sudo systemctl start nfs-lock.service 
      sudo systemctl start nfs-idmap.service
      
  5. Export root FS to NFS. (Change IMAGE and MACHINE to fit your build).
    1. Unpack rootfs to a dedicated directory:
      IMAGE=weston
      MACHINE=h3ulcb|m3ulcb
      NFS_ROOT=/nfs/${MACHINE}
      sudo mkdir -p "${NFS_ROOT}"
      sudo rm -rf "${NFS_ROOT}"/*
      sudo tar -xjf "${WORK}/build/tmp/deploy/images/${MACHINE}/core-image-${IMAGE}-${MACHINE}-*.tar.bz2" -C "${NFS_ROOT}"
      sync
      
    2. Edit /etc/exports:
      sudo vi /etc/exports
      
      add
      /nfs/h3ulcb	*(rw,no_subtree_check,sync,no_root_squash,no_all_squash)
      /nfs/m3ulcb	*(rw,no_subtree_check,sync,no_root_squash,no_all_squash)
      
      Save the file and exit.
    3. Force NFS server to re-read /etc/exports
      sudo exportfs -a
      
  6. Verify that NFS is working.
    [builduser@buildmachine ~]$ showmount -e localhost
    Export list for localhost:
    /nfs/h3ulcb *
    /nfs/m3ulcb *
    
  7. Boot into U-Boot command prompt
    1. Connect to serial console over microUSB using minicom or picocom.
    2. Switch the board on or reset it. Press any key to stop U-Boot automatic countdown.
    Refer to H3SK board page, M3SK board page for more information.
  8. Configure Ethernet, TFTP, and kernel command line in U-Boot:
    setenv ipaddr <board-ip>
    setenv serverip <your-computer-ip>
    setenv bootcmd 'tftp 0x48080000 Image; tftp 0x48000000 Image-r8a7795-h3ulcb.dtb; booti 0x48080000 - 0x48000000'
    setenv bootargs 'ignore_loglevel rw root=/dev/nfs nfsroot=<your-computer-ip>:<nfs-path>,nfsvers=3 ip=<board-ip>:<your-computer-ip>::255.255.255.0:h3ulcb'
    saveenv
    
    Replace <board-ip> with the proper IP address for the board. Replace <your-computer-ip> with the IP address of your computer, where tftp and nfs servers are installed. Replace <nfs-path> with the exported path of the root FS.
    For example:
    setenv ipaddr 192.168.1.3
    setenv serverip 192.168.1.2
    setenv bootcmd 'tftp 0x48080000 Image; tftp 0x48000000 Image-r8a7795-h3ulcb.dtb; booti 0x48080000 - 0x48000000'
    setenv bootargs 'ignore_loglevel rw root=/dev/nfs nfsroot=192.168.1.2:/nfs/h3ulcb,nfsvers=3 ip=192.168.1.3:192.168.1.2::255.255.255.0:h3ulcb'
    saveenv
    
    You can also use
    dhcp
    
    command to obtain information from DHCP server.
    Note: You can always see the environment with printenv command. Refer to U-Boot manual for details.
  9. Verify the connection over Ethernet from U-Boot:
    ping <your-computer-ip>
    
    You should see:
    => ping 192.168.1.2
    ravb:0 is connected to ravb.  Reconnecting to ravb
    ravb Waiting for PHY auto negotiation to complete.. done
    ravb: 100Base/Full
    Using ravb device
    host 192.168.1.2 is alive
    
  10. Reset the board by pushing reset button
    Refer to H3SK board page, M3SK board page for more information.
  11. The board should boot the kernel:
    NOTICE:  BL2: R-Car Gen3 Initial Program Loader(CA57) Rev.1.0.10
    NOTICE:  BL2: PRR is R-Car H3 ES1.0
    NOTICE:  BL2: Boot device is HyperFlash(80MHz)
    NOTICE:  BL2: LCM state is CM
    NOTICE:  BL2: AVS setting succeeded. DVFS_SetVID=0x52
    NOTICE:  BL2: DDR1600(rev.0.10)
    NOTICE:  BL2: DRAM Split is 4ch
    NOTICE:  BL2: QoS is default setting(rev.0.32)
    NOTICE:  BL2: Lossy Decomp areas
    NOTICE:       Entry 0: DCMPAREACRAx:0x80000540 DCMPAREACRBx:0x570
    NOTICE:       Entry 1: DCMPAREACRAx:0x40000000 DCMPAREACRBx:0x0
    NOTICE:       Entry 2: DCMPAREACRAx:0x20000000 DCMPAREACRBx:0x0
    NOTICE:  BL2: v1.1(release):c2f9fc9
    NOTICE:  BL2: Built : 00:36:25, Nov 20 2016
    NOTICE:  BL2: Normal boot
    NOTICE:  BL2: dst=0xe631a1a8 src=0x8180000 len=512(0x200)
    NOTICE:  BL2: dst=0x43f00000 src=0x8180400 len=6144(0x1800)
    NOTICE:  BL2: dst=0x44000000 src=0x81c0000 len=65536(0x10000)
    NOTICE:  BL2: dst=0x44100000 src=0x8200000 len=524288(0x80000)
    NOTICE:  BL2: dst=0x50000000 src=0x8640000 len=1048576(0x100000)
    
    
    U-Boot 2015.04 (Nov 20 2016 - 00:54:11)
    
    CPU: Renesas Electronics R8A7795 rev 1.0
    Board: H3ULCB
    I2C:   ready
    DRAM:  3.9 GiB
    MMC:   sh-sdhi: 0, sh-sdhi: 1
    In:    serial
    Out:   serial
    Err:   serial
    Net:   ravb
    Hit any key to stop autoboot:  0 
    ravb Waiting for PHY auto negotiation to complete.. done
    ravb: 100Base/Full
    BOOTP broadcast 1
    BOOTP broadcast 2
    BOOTP broadcast 3
    DHCP client bound to address 192.166.10.31 (1287 ms)
    Using ravb device
    TFTP from server 192.166.10.1; our IP address is 192.166.10.31
    Filename 'Image'.
    Load address: 0x48080000
    Loading: #################################################################
             #################################################################
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             ####################################################
             627 KiB/s
    done
    Bytes transferred = 13905920 (d43000 hex)
    ravb:0 is connected to ravb.  Reconnecting to ravb
    ravb Waiting for PHY auto negotiation to complete. done
    ravb: 100Base/Full
    Using ravb device
    TFTP from server 192.166.10.1; our IP address is 192.166.10.31
    Filename 'Image-r8a7795-h3ulcb.dtb'.
    Load address: 0x48000000
    Loading: #############
             12.7 KiB/s
    done
    Bytes transferred = 66470 (103a6 hex)
    ## Flattened Device Tree blob at 48000000
       Booting using the fdt blob at 0x48000000
       Using Device Tree in place at 0000000048000000, end 00000000480133a5
    
    Starting kernel ...
    

Loading kernel and rootfs via eMMC/SD card

This section describes steps that are necessary for preparing and booting from SD card.

Preparing eMMC/SD card

In order to prepare you SD card, follow these instructions on host machine:

  1. Partion your SD card to set 1 partition and ID=83 (Linux)
    Make sure the SD card doesn't contain any important files.
    WARNING! These steps may erase the SD card completely. All files my be lost.
    $ fdisk /dev/mmcblk0
    -> d
    -> n
    -> p
    -> 1
    -> t
    -> 83
    
  2. Format this partition to ext3 (or ext4)
    $ mkfs.ext3 /dev/mmcblk0p1
    
  3. Mount this partition on your host to any directory and upack the core-image-weston-*.tar.bz2 into mounted folder. And Copy Image and Image-r8a7795-h3ulcb.dtb (for ws2.0 silicon) and/or Image-r8a7795-h3ulcb-4x2g.dtb (for RTP0RC77951SKBX010SA03(DDR 8GiB)) and/or Image-r8a7795-es1-h3ulcb.dtb (for ws1.1) from $WORK/build/tmp/deploy/images/h3ulcb/ to sd card /boot. In case of m3ulcb copy dtb from $WORK/build/tmp/deploy/images/m3ulcb/.
    $ mount /dev/mmcblk0p1 /mnt
    $ cd <your_yocto_build_directory>
    $ tar xfj  build/tmp/deploy/images/h3ulcb/core-image-weston-h3ulcb-*.rootfs.tar.bz2  -C /mnt
    $ cp $WORK/build/tmp/deploy/images/h3ulcb/XXXX.dtb /mnt/boot/
    
    NOTE: probably you need to be a root user, hence use "sudo"

Configure U-Boot to boot from SD card

  • Proper U-Boot command to boot from SD:
    # setenv bootargs 'rw root=/dev/mmcblk1p1 rootwait'
    # ext2load mmc 0:1 0x48080000 /boot/Image
    # ext2load mmc 0:1 0x48000000 /boot/Image-r8a7795-h3ulcb.dtb
    # booti 0x48080000 - 0x48000000
    
    Note from user:
    When I created my image with mkfs.ext3, and booted with rootfstype=ext3, the kernel could not find mount the filesystem.
    The kernel boot gave an error message:
    "EXT4-fs (mmcblk1p1): couldn't mount as ext3 due to feature incompatibilities".
    I switched to 'rootfstype=ext4' in my bootargs, and the kernel booted OK.
  • Example of U-Boot environment variables:
    baudrate=115200
    bootargs_emmc=rw root=/dev/mmcblk0p1 rootwait
    bootargs_nfs=rw root=/dev/nfs rootwait ip=dhcp
    bootargs_sd0=rw root=/dev/mmcblk1p1 rootwait
    bootcmd=run bootcmd_sd0
    bootcmd_emmc=set bootargs ${bootargs_emmc};ext2load mmc 1:1 0x48080000 /boot/Image;ext2load mmc 1:1 0x48000000 /boot/${dtb};run booti_cmd
    bootcmd_nfs=set bootargs ${bootargs_nfs};bootp 0x48080000 Image;tftp 0x48000000 ${dtb};run booti_cmd
    bootcmd_sd0=set bootargs ${bootargs_sd0};ext2load mmc 0:1 0x48080000 /boot/Image;ext2load mmc 0:1 0x48000000 /boot/${dtb};run booti_cmd
    bootdelay=3
    booti_cmd=booti 0x48080000 - 0x48000000
    dtb=Image-r8a7795-h3ulcb.dtb
    ethact=ravb
    ethaddr=2E:09:0A:00:BE:11
    fdt_high=0xffffffffffffffff
    initrd_high=0xffffffffffffffff
    stderr=serial
    stdin=serial
    stdout=serial
    ver=U-Boot 2015.04 (Sep 23 2016 - 13:45:29)<br>
    Environment size: 1092/131068 bytes
    
  • To verify the SD card, type the following in U-Boot prompt:
    => mmc dev 0 
    switch to partitions #0, OK
    mmc0 is current device
    => mmc info
    Device: sh-sdhi
    Manufacturer ID: 3
    OEM: 5344
    Name: SL64G 
    Tran Speed: 50000000
    Rd Block Len: 512
    SD version 3.0
    High Capacity: Yes
    Capacity: 59.5 GiB
    Bus Width: 4-bit
    Erase Group Size: 512 Bytes
    => ext2ls mmc 0:1 /boot
    <DIR>       4096 .
    <DIR>       4096 ..
    <SYM>         32 Image
            14039040 Image-4.9.0-yocto-standard
               69584 Image-r8a7795-h3ulcb.dtb
    

Q&A site

http://renesasrulz.com/r-car-h3-m3-cockpit/

FAQ page

https://elinux.org/R-Car/Boards/Yocto-Gen3-CommonFAQ

FAQ

How do I increase USB bandwidth

  1. Download:
    M3SK File:M3v10 usb20 iso mode.zip
    H3SK WS1.1 (RTP0RC7795SKBX0010SA00) File:H3v11 usb20 iso mode.zip
    H3SK WS2.0 (RTP0RC77951SKBX010SA00) File:H3v20 usb20 iso mode.zip
  2. Setting
    # <Install Driver>
    $ modprobe qos
    # <Change directory to csv path>
    $ cd /path_to_csv
    # <Store QoS parameters to QoS SRAM>
    $ qos_tp setall file.csv
    # <Reflect Qos SRAM to QoS controller>
    $ qos_tp switch
    

How do access to USB memory from U-boot(Yocto v3.13.0 or later)

  1. Some USB memory may not be recognized.
    => usb start
    starting USB...
    USB0:   USB EHCI 1.10
    scanning bus 0 for devices... EHCI timed out on TD - token=0x80008d80
    
          USB device not accepting new address (error=80000000)
    1 USB Device(s) found
           scanning usb for storage devices... 0 Storage Device(s) found
    =>
    
  2. [How to fix] Set the "usb_pgood_delay 2000" variable
    => setenv usb_pgood_delay 2000
    => saveenv
    => reset
    => usb start
    

Known issues and limitations

  1. [SW limitation] Yocto v3.4.0 or later doesn't support RTP0RC7795SKBX0010SA00(H3 v1.1 Starter Kit).
    Please use the H3 v2.0 or v3.0 SK
  2. [Known issue] If you encounter a kernel hang-up while using Yocto v3.4.0 or later, please refer to the following pages.
    H3 SK: No.1 of R-Car/Boards/H3SK#Known_Issues
    M3 SK: No.2 of R-Car/Boards/M3SK#Known_Issues