[Arm-netbook] EOMA micro SD card boot image (alpha quality) with sata working available

[joem]

EOMA micro SD card boot image with sata working available:

http://gplsquared.com/eoma_boot/eoma_boot.html#boot_image2


This one has sata working. Ethernet in this version doesn't work yet,
and hdmi is doing something but not fully working. Still alpha quality.
Boot log: http://gplsquared.com/eoma_boot/linaro_log2.txt

The file uses xz compression and unzips into a 2GB image file that can
be written to a 2GB or bigger micro SDCard, and then used to boot the
EOMA. To write the 2GB file to uSD card, use the dd command.
(Future sdcards images will be bigger as they will come more self
contained and with more tools and sources.)

The difference with previous version is down to suggestion by arokux on
freenode #linux-sunxi to compile differently:
The guide at http://linux-sunxi.org/FirstSteps is followed to make a
bootable uSD card. (The root fs chosen was the linaro distro.)

The differences:
1. instead of git checkout origin/sunxi-3.0, used git checkout
origin/sunxi-3.4 

2. instead of make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
sun4i_defconfig, used make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
sun7i_defconfig 

3. The remaining information came from
http://rhombus-tech.net/allwinner/a20/boot/ to set up the EOMA to boot
from uSD card, and get this file
http://rhombus-tech.net/allwinner/a20/boot/script.fex to inform Linux of
hardware configuration.

Less duplication, uses more of the existing documentation available, and
it cross compiles on Ubuntu 12.04.3 using ubuntu tool chain.