[Arm-netbook] It arrived in the post just now!

luke.leighton luke.leighton at gmail.com
Wed Jul 31 01:40:13 BST 2013


On Tue, Jul 30, 2013 at 11:32 PM, Henrik Nordström
<henrik at henriknordstrom.net> wrote:
> tis 2013-07-30 klockan 18:06 +0100 skrev luke.leighton:
>
>>  if however you're thinking that you can power-up by providing 5V
>> power on the USB-OTG interface and at the same time make some weird
>> cable where the USB signals go to a USB powered up then please don't
>> try doing that, it will only end in tears.
>
> Well.. the AXP power management is really separate from USB port
> function, so might actually work.

 *slightly scared* :)

> But you probably need to wait for A20
> support to merge into sunxi-3.4 tree which I hope is only days away,
> people are working hard on that right now, but held up by.. guess what..
> USB driver issues.

 surpriiise!  i take it they're aware that those buffer overruns - a
stupid bug which i fixed in the 3.3 a20-dev code i initially tested -
probably resulted in allwinner's employees going down a whooole slew
of increasingly-desperate modifications to the A20 USB codebase, when
in fact the problem was simply stack/memory corruption?

>>  i already have had debian/testing armhf up and running months ago on
>> both the A10 and A20 CPU Cards - other OSes are not going to be hard
>> to do.
>
> As mentioned earlier Fedora 19 is also available for A20 and basically
> only needs a proper script.bin for the EOMA68-A20.

 magic.

> I think dirst prio is to compose a proper set of fex files for different
> EOMA68-A20 uses + clear instructions on how to use the shipped Android
> to replace the NAND u-boot with one that can boot from the uSD slot of
> EOMA68-A20.

 yes.  i'm running fel-boot, that works fine, loads off the uSD....
buuuut there's nothing on the NAND (i wiped it).  that's a little
different from bootstrapping from android.


> I got my EOMA68-A20 board today btw.

 awesome!

> Right.. should also write up a document on how to disassemble the PCMCIA
> casing safely so one can reach the USB-BOOT "jumper" for those who needs
> it.

 good point.

 any chance you could put it here:
http://rhombus-tech.net/allwinner/a20/boot/

 l.



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