README.rmobile
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Summary
=======
This README is about U-Boot support for Renesas's ARM Cortex-A9 based RMOBILE[1]
and R-Car[2]family of SoCs. Renesas's RMOBILE/R-Car SoC family contains an ARM
Cortex-A9.
Currently the following boards are supported:
* KMC KZM-A9-GT [3]
* Atmark-Techno Armadillo-800-EVA [4]
* Renesas Electronics Lager
* Renesas Electronics Koelsch
Toolchain
=========
ARM Cortex-A9 support ARM v7 instruction set (-march=armv7a).
But currently we compile with -march=armv5 to allow more compilers to work.
(For U-Boot code this has no performance impact.)
Because there was no compiler which is supporting armv7a not much before.
Currently, ELDK[5], Linaro[6], CodeSourcey[7] and Emdebian[8] supports -march=armv7a
and you can get.
Build
=====
* KZM-A9-GT
make kzm9g_config
make
* Armadillo-800-EVA
make armadillo-800eva_config
make
Note: Armadillo-800-EVA's U-Boot supports booting from SDcard only.
Please see "B.2 Appendix B Boot Specifications" in hardware manual.
* Lager
make lager_config
make
* Koelsch
make koelsch_config
make
Links
=====
[1] Renesas RMOBILE:
http://am.renesas.com/products/soc/assp/mobile/r_mobile/index.jsp
[2] Renesas R-Car:
http://am.renesas.com/products/soc/assp/automotive/index.jsp
[3] KZM-A9-GT
http://www.kmckk.co.jp/kzma9-gt/index.html
[4] Armadillo-800-EVA
http://armadillo.atmark-techno.com/armadillo-800-EVA
[5] ELDK
http://www.denx.de/wiki/view/ELDK-5/WebHome#Section_1.6.
[6] Linaro
http://www.linaro.org/downloads/
[7] CodeSourcey
http://www.mentor.com/embedded-software/codesourcery
[8] Emdebian
http://www.emdebian.org/crosstools.html