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Start.Now (Stout)

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This is starting page for Embedded Linux on Renesas R-Car family of automotive embedded SoCs. Main goal is to make information on R-Car SoCs friendly, easy to access for embedded developers, enthusiasts. It does not aim to replace official Renesas support.

Links below could be used to get familiar with Renesas Automotive SoCs and R-Car Concortia:

Detailed information regarding R-Car SoCs (including roadmap, technical and marketing documents, BSPs and middleware) can be obtained directly from Renesas representative.

R-Car SoCs

Renesas R-Car SoC variants (Generations)
Generation 1 Generation 2 Generation 3
"H" - Premium/High end H1 - R8A7779 H2 - R8A7790 H3 - R8A7795
"M" - Mid range M1A - R8A7778
  • M2-W - R8A7791
  • M2-N - R8A7793
"E" - Entry class E1 E2 - R8A7794
"V" - ADAS V2H - R8A7792

R-Car Boards

Generation 1

Renesas R-Car Gen1 evaluation boards
Standard Low Cost Boards (LCB)
R-Car H1 Marzen Geuze
R-Car M1A BOCK-W Milan
R-Car E1 Silverstone

Generation 2

Renesas R-Car Gen2 evaluation boards
Standard Low Cost Boards (LCB)
R-Car H2 Lager 65px-Stout top.png
Start.Now (Stout)
R-Car M2-W Koelsch 65px-Porter top.png
R-Car M2-N Gose
R-Car E2 Alt 65px-Silk top.png
R-Car V2H Blanche

R-Car Linux


Renesas mainline R-Car Linux tree is maintained by Simon Horman

Start here to get latest/closest upstream kernel: git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git

e.g. pull development branch: git clone -b devel git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git

TBD - add page regarding R-Car upstream development process (including branches/tags meaning)

R-Car Community

Archives available here: http://marc.info/?l=linux-sh , http://dir.gmane.org/gmane.linux.ports.sh.devel , http://www.spinics.net/lists/linux-sh/

LTSI (Long Term Support Initiative)

Renesas SoCs and boards are supported as part of LTSI project - http://ltsi.linuxfoundation.org/ . Refer to 3.10 and 3.14 baselines

Renesas Stable R-Car BSP Tree

Stable Renesas R-Car BSP Tree located here: git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-backport.git. Pull latest stable branch.

for example: bsp/v3.10.31-ltsi/rcar-gen2-1.8.0

R-Car U-Boot

R-Car U-Boot mainline development is done using git://git.denx.de/u-boot-sh.git tree. It is maintained by Nobuhiro Iwamatsu.

e.g. pull renesas/bsp/rcar-gen2-1.8.0 branch and build U-Boot for Lager/Koelsch/Alt boards
git clone -b renesas/bsp/rcar-gen2-1.8.0  git://git.denx.de/u-boot-sh.git

build example

make O=/tmp/build clean
make O=/tmp/build mrproper
make O=/tmp/build gose_config
make O=/tmp/build all

R-Car Yocto

Renesas Yocto/Poky distribution is maintained by Nobuhiro Iwamatsu.

To get started with Yocto on R-Car Gen2 platform - pull git://git.yoctoproject.org/meta-renesas tree

If you pulled complete Yocto/poky trees, you should be able to kick-off a build using the 'oe-init-build-env' script in Poky. Update bblayers.conf by adding the meta-renesas and meta-rcar-gen2 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 \
               <path to layer>/meta-renesas/meta-rcar-gen2 \

To build a specific target BSP configure the associated machine in local.conf:

       MACHINE ?= "<supported board name>" (lager, koelsch, gose, alt)

Build the target file system image using bitbake:

       $ bitbake core-image-minimal

R-Car Automotive Grade Linux

Automotive Grade Linux (AGL) is a Linux Foundation Workgroup dedicated to creating open source software solutions for automotive applications. AGL is based on Yocto project for its construction and R-Car Porter board can be used to start an AGL distribution. Please check this page.

R-Car Tizen

TBD Renesas R-Car Tizen is already available via tizen.org trees. Add detailed instructions how to get started with Tizen for R-Car

R-Car Android

TBD This section will be added later