[Arm-netbook] FEL protocol have been reversed

[Tom Cubie]

On Tue, Jun 12, 2012 at 4:10 PM, Henrik Nordström <
henrik at henriknordstrom.net> wrote:

> Thanks to USB dumps kindly provided by others and a bit of staring at
> the data the FEL USB boot protocol have now been decoded.
>
> https://github.com/hno/Allwinner-Info/blob/master/FEL-usb/USB-protocol.txt
>
> What remains is to
>
> * Figuring out which memory regions are allowed to use for FEL booting.
>
> * Modifying u-boot SPL so it can be used for FEL USB booting.
>
> * Write a program for sending u-boot SPL via FEL USB boot to the A10
> device, or write a new SPL for FEL USB booting.
>
> * Figuring out some unknown bits. Mainly the version message sent by
> BROM.
>
> * Collect FEL data for other Allwinner/Boxchip SoCs. A13 is of primary
> interest but older devices is also interesting.
>
> There is a simple proof of concept program at
> https://github.com/hno/Allwinner-Info/blob/master/FEL-usb/fel.c which
> talks to FEL to dump some memory regions. This will move into
> sunxi-tools and get polished into a FEL loader.
>
> Awesome!

> Regards
> Henrik
>
>
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-- 
Keep simple, stay foolish.
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