meta-rcar-gen3

This layer provides the support for the evaluation board mounted ARM SoCs of Renesas Electronics, called the R-Car Generation 3.

Currently, this supports boards and the SoCs of the following:

    - Board: Salvator-X / SoC: R8A7795 (R-Car H3), R8A7796 (R-Car M3), R8A77965 (R-Car M3N)
    - Board: R-Car Starter Kit premier(H3ULCB) / SoC: R8A7795 (R-Car H3)
    - Board: R-Car Starter Kit pro(M3ULCB) / SoC: R8A7796 (R-Car M3)
    - Board: Ebisu / SoC: R8A77990 (R-Car E3)

Branch Policy

  • This is Community Yocto BSP to follow Yocto/Poky releases.

  • It is not supported to the level of the Customer Yocto BSP.

Tag Policy

  • Releases are created from the respective working branch.

  • After a Customer Yocto BSP version releases, the Community Yocto BSP will be rebased and released accordingly.

  • thud-X:

    • The versions used on thud (Yocto Project 2.6) will start on thud-Yocto-v3.15.0 to keep the major version numbers in sync.

Contribution

  • Please submit any patches for this layer to: takamitsu.honda.pv@renesas.com

  • Please see the MAINTAINERS file for more details.

Layer Dependencies

This layer depends on:

  • poky
    URI: git://git.yoctoproject.org/poky
    layers: meta, meta-yocto, meta-yocto-bsp
    branch: thud
    revision: 84eecb017ef92ef36b4df730908828e54aeff85c
  • meta-linaro
    URI: git://git.linaro.org/openembedded/meta-linaro.git
    layers: meta-optee
    branch: thud
    revision: edb7ffc2a121df7596385595abe75180296103e0
  • meta-openembedded
    URI: git://git.openembedded.org/meta-openembedded
    layers: meta-oe
    branch: thud
    revision: cca27b5ea7569d2730ee5da7ee7f47b39d775d89

Build Instructions

The following instructions require a Poky installation (or equivalent).

  • This also needs git user name and email defined:
   $ git config --global user.email "you@example.com"
   $ git config --global user.name "Your Name"
  • Initialize a build using the ‘oe-init-build-env’ script in Poky. e.g.:
    $ source poky/oe-init-build-env
  • After that, initialized configure bblayers.conf by adding meta-rcar-gen3 layer. e.g.:
    BBLAYERS ?= " \
        <path to layer>/poky/meta \
        <path to layer>/poky/meta-yocto \
        <path to layer>/poky/meta-yocto-bsp \
        <path to layer>/meta-renesas/meta-rcar-gen3 \
        <path to layer>/meta-linaro/meta-optee \
        <path to layer>/meta-openembedded/meta-oe \
    "
  • To build a specific target BSP, configure the associated machine in local.conf:
    MACHINE ??= "<supported board name>"
  • Select the SOC

    • For H3: r8a7795

    bash SOC_FAMILY = "r8a7795"

    • For M3: r8a7796

    bash SOC_FAMILY = "r8a7796"

    • For M3N: r8a77965

    bash SOC_FAMILY = "r8a77965"

    • For E3: r8a77990

    bash # Already added in machine config: ebisu.conf SOC_FAMILY = "r8a77990"

  • Configure for systemd init in local.conf:

    DISTRO_FEATURES_append = " systemd"
    VIRTUAL-RUNTIME_init_manager = "systemd"
  • Configure for ivi-shell and ivi-extension
    DISTRO_FEATURES_append = " ivi-shell"
  • Configure for USB 3.0
    MACHINE_FEATURES_append = " usb3"
  • Enable tuning support for Capacity Aware migration Strategy (CAS)
    MACHINE_FEATURES_append = " cas"
  • Build the target file system image using bitbake:
    $ bitbake core-image-minimal

After completing the images for the target machine will be available in the output directory ‘tmp/deploy/images/'.

Images generated:

  • Image (generic Linux Kernel binary image file)

  • Image-.dtb (DTB for target machine)

  • core-image-minimal-.tar.bz2 (rootfs tar+bzip2)

  • core-image-minimal-.ext4 (rootfs ext4 format)

Build Instructions for SDK

NOTE:

This may be changed in the near feature. These instructions are tentative.

Should define the staticdev in SDK image feature for installing the static libs to SDK in local.conf.

    SDKIMAGE_FEATURES_append = " staticdev-pkgs"

For 64-bit target SDK (aarch64)

Use bitbake -c populate_sdk for generating the toolchain SDK

    $ bitbake core-image-minimal -c populate_sdk

The SDK can be found in the output directory tmp/deploy/sdk

  • poky-glibc-x86_64-core-image-minimal-aarch64-toolchain-x.x.sh

Usage of toolchain SDK

Install the SDK to the default: /opt/poky/x.x

  • For 64-bit target SDK
    $ sh poky-glibc-x86_64-core-image-minimal-aarch64-toolchain-x.x.sh
  • For 64-bit application, using environment script in /opt/poky/x.x
    $ source /opt/poky/x.x/environment-setup-aarch64-poky-linux

R-Car Generation 3 Information

Refer to the following for more information from eLinux website https://elinux.org/R-Car