Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: gtym87 on November 05, 2013, 01:12:33 PM

Title: A20 Bios/Firmware
Post by: gtym87 on November 05, 2013, 01:12:33 PM
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.

Title: Re: A20 Bios/Firmware
Post by: gtym87 on November 09, 2013, 02:46:44 PM
Is there some books which explain how the boot sequence works especially on this board ?

Title: Re: A20 Bios/Firmware
Post by: progmetalbg on November 09, 2013, 04:49:43 PM
Here you can see Allwinner A10 boot process explained:
http://rhombus-tech.net/allwinner_a10/a10_boot_process/ (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/ (http://dl.linux-sunxi.org/A20/)

or in the information published in linux-sunxi.org site
Title: Re: A20 Bios/Firmware
Post by: gtym87 on November 16, 2013, 06:15:08 PM
I will look at that, thanks.