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Renesas RZ/G1M iwg20m build instructions

How to build the latest CIP Kernel for iwg20m

The Renesas RZ/G1M iWave Qseven development kit (iwg20m) is supported in the CIP SLTS Kernel. The instructions below describe how to build the CIP SLTS Kernel for the iwg20m platform using the Renesas RZ/G toolchain.

Build Steps

1. Checkout CIP Kernel

$  cd [your working directory]
$  git clone git://
$  cd linux-cip
$  git fetch origin  # Not needed if a fresh clone
$  git checkout origin/linux-4.4.y-cip

2. Configure compiler environment

If using the Renesas SDK:

$  source /opt/poky/2.0.1/environment-setup-cortexa15hf-vfp-neon-poky-linux-gnueabi
$  unset LDFLAGS

3. Configure uImage load address

$  export LOADADDR="0x40008000"

4. Configure Linux config for iwg20m platform

$  make shmobile_defconfig

5. Build the Kernel and device tree

$  make uImage
$  make dtbs

Build Output

Output file locations:
- Kernel: arch/arm/boot/uImage
- Device tree: arch/arm/boot/dts/r8a7743-iwg20d-q7.dtb
- Device tree: arch/arm/boot/dts/r8a7743-iwg20d-q7-dbcm-ca.dtb (when using camera/HDMI add-on board)

How to build the full iwg20m BSP from Renesas

This section contains information on how to build a CIP based Yocto BSP for the Renesas RZ/G1M iWave Qseven development kit (iwg20m).

Full instructions can be found in the “Yocto Start-Up Guide” that can be downloaded from the Renesas RZ/G Marketplace:

Supported Linux Host Distributions

Ubuntu 14.04 LTS

Build Steps

1. Install the required host packages

$  sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm

2. Download the required files (poky, meta-openembedded, meta-linaro, meta-renesas) by git-clone

$  export WORK=<path-to-your-working-directory>
$  mkdir $WORK
$  cd $WORK
$  git clone git://
$  git clone git://
$  git clone git://
$  git clone

3. Checkout correct revisions

$  cd $WORK/poky
$  git checkout -b tmp 3b223f75eec1738fbc913858e8e11c8305e3edcb
$  cd $WORK/meta-openembedded
$  git checkout -b tmp dc5634968b270dde250690609f0015f881db81f2
$  cd $WORK/meta-linaro
$  git checkout -b tmp 12993e6bc8658ee37d303d8d59007f8dd9ab2b30
$  cd $WORK/meta-renesas
$  git checkout certified-linux-v2.0.6

4. Install proprietary software packages (graphics, multimedia)

Download packages (Kernel version CIP3) from the RZ/G Marketplace:

$  mkdir $WORK/proprietary
$  cp RZG_Series_Evaluation_Software_Package* $WORK/proprietary
$  cd $WORK/meta-renesas/meta-rzg1
$  sh  $WORK/proprietary
$  sh  $WORK/proprietary

5. Execute source command

$  cd $WORK
$  source poky/oe-init-build-env

6. Copy build configuration files

$  cp $WORK/meta-renesas/meta-rzg1/templates/iwg20m/* $WORK/build/conf/

7. Build with bitbake

$  cd $WORK/build
$  bitbake core-image-weston

NOTE: The build may take several hours to complete depending on the Linux Host PC performance and the network environment.

Build Output

Once the build is completed, the Kernel, device tree and RFS are located in $WORK/build/tmp/deploy/images/iwg20m.

How to build/use the SDK

This section contains information on how to build and use the Renesas RZ/G SDK.

Full instructions can be found in section 5 of the “Yocto Start-Up Guide” that can be downloaded from the Renesas RZ/G Marketplace:

Build Steps

1. Follow the BSP build instructions above, steps 1-6

It doesn't matter if step 7 has already been run or not.

2. Configure host PC architecture

It is possible to build the SDK to run on a host PC using a different environment to the PC building the SDK.

In $WORK/build/conf/local.conf:

# This variable specified the architecture to build SDK/ADT items for and means
# you can build the SDK packages for architectures other than the machine you are
# running the build on (i.e. building i686 packages on an x86_64 host.)
# Supported values are i686 and x86_64
#SDKMACHINE ?= "x86_64"
SDKMACHINE ?= "i686"

3. Build SDK with bitbake

$  cd $WORK/build
$  bitbake core-image-weston-sdk -c populate_sdk

Build Output

Once the build is completed, the toolchain will be located in the $WORK/build/tmp/deploy/sdk/ directory (poky-glibc-[x86_64|i686]

Using the SDK

1. Install the toolchain on host PC

$  sudo poky-glibc-[x86_64|i686]
[sudo] password for (INSTALL person): [enter password of your account]
Enter target directory for SDK (default: /opt/poky/2.0.1): [enter new location or just key enter]
Extracting SDK...done
Setting it up...done
SDK has been successfully set up and is ready to be used.

2. Set up environment variables for build

$  cd [your working directory]
$  source /opt/poky/2.0.1/environment-setup-cortexa15hf-vfp-neon-poky-linux-gnueabi

#  When you use “ld” directly but not via gcc (in case of building Kernel, Driver or u-boot), disable LDFLAGS:
$  unset LDFLAGS

3. Build application

$  $CC [your source code].c [optional FLAGs etc.]
civilinfrastructureplatform/ciptesting/cipreferencehardware/iwg20m/iwg20mbuildinstructions.txt · Last modified: 2019/03/18 12:19 by patersonc