[Arm-netbook] USB console idea

[Tom Cubie]

On Wednesday, March 7, 2012, Henrik Nordström <henrik at henriknordstrom.net>
wrote:
> tis 2012-03-06 klockan 13:26 +0800 skrev Tom Cubie:
>> Yeah, good idea. I remember the openmoko phone u-boot uses the usb
>> as console.
>
> Yes, the U-Boot serial console support seems pretty widespread.
>
>> I don't have much USB knowledge, the u-boot lichee-dev souce contains
>> the code that let the A10 USB work under the android fastboot
>> protocol.
>
> Ok. So then it should be pretty trivial to add a serial console profile
> as well.
>
>> I think if someone is familiar with the usb protocol it's easy to get
>> the usb console working.
>
> Not very familiar with USB but not scared. I'll give it a shot.

Great!

>
> While we talk about USB protocols, is there any information on how BROM
> Fel works at the USB level? Given the size of BROM it can't be a complex
> protocol. If not we will reverse it. It smells like it's a kind of
> serial channel over USB running an xmodem download into SRAM.

I don't have any information about the fel. Maybe I can access the livesuite
source code and figure out something. Reversing are welcomed : )


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