A20 Bios/Firmware

[gtym87]

There's a Bios/Firmware to start OS on the compact flash socket.
Is this starter open source or not ?
Can we transform it and flash it ?

I was wondering to have a pure C++11 Operating System and doing all
the low level resetting, ... in the starter firmware.

[gtym87]

Is there some books which explain how the boot sequence works especially on this board ?

[progmetalbg]

Here you can see Allwinner A10 boot process explained:
http://rhombus-tech.net/allwinner_a10/a10_boot_process/

Allwinner A10 and A20 are quite similar chips so probably the same logic is used in A20.

You can try to find useful info in the A20 user manual:
http://dl.linux-sunxi.org/A20/

or in the information published in linux-sunxi.org site

[gtym87]

I will look at that, thanks.