rmobile: Add README

This add README of Renesas RMOBILE.
Based doc/README.omap3.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Tom Rini <trini@ti.com>
This commit is contained in:
Nobuhiro Iwamatsu 2012-08-09 17:00:10 +09:00 committed by Albert ARIBAUD
parent a085ba6fa6
commit 5977503a81

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Summary
=======
This README is about U-Boot support for Renesas's ARM Cortex-A9 based RMOBILE[1]
family of SoCs. Renesas's RMOBILE SoC family contains an ARM Cortex-A9.
Currently the following boards are supported:
* KMC KZM-A9-GT [2]
* Atmark-Techno Armadillo-800-EVA [3]
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[4], Linaro[5], CodeSourcey[6] and Emdebian[7] supports -march=armv7a
and you can get.
Build
=====
* KZM-A9-GT
make kzm9g_config
make
* Armadillo-800-EVA
make armadillo-800eva_config
make
Links
=====
[1] Renesas RMOBILE:
http://am.renesas.com/products/soc/assp/mobile/r_mobile/index.jsp
[2] KZM-A9-GT
http://www.kmckk.co.jp/kzma9-gt/index.html
[3] Armadillo-800-EVA
http://armadillo.atmark-techno.com/armadillo-800-EVA
[4] ELDK
http://www.denx.de/wiki/view/ELDK-5/WebHome#Section_1.6.
[5] Linaro
http://www.linaro.org/downloads/
[6] CodeSourcey
http://www.mentor.com/embedded-software/codesourcery
[7] Emdebian
http://www.emdebian.org/crosstools.html