[Arm-netbook] origen 4 (exynos S5PV310)

[Derek LaHousse]

On Sat, 2012-09-15 at 19:57 +0100, luke.leighton wrote:
> On Sat, Sep 15, 2012 at 4:31 PM, Derek LaHousse <dlahouss at mtu.edu> wrote:
> > On Sat, 2012-09-15 at 13:18 +0200, Henrik Nordström wrote:
> >> fre 2012-09-14 klockan 21:58 -0500 skrev Eric Stuyvesant:
> >>
> >> > Yeah, and 2ghz dualcore A15 as well. Wowwww is right.
> >>
> >> Does it fit in eoma power profile?
> >>
> >> Regards
> >> Henrik
> >>
> >>
> >>
> >
> > If not, there's always underclocking, right?
> >
> > Hey, if USB 3.0 can provide nearly 10 W of power, how does the card stay
> > under 5W?  Or, does the card just provide the data lines, and the power
> > lines come from the chassis?
> > Actually, I'm dumb.  Of course the power lines aren't coming directly
> > from the CPU.
> 
> :)
> 
> > Well, I'll record that anyway, and mention that USB 3.0
> > provides more power for accessories.  Yay.
> > I'll also add that according to http://www.usb.org/developers/onthego/
> > it looks like USB 3.0 can support OTG as well (if the chip does),
> > allowing the card to act as the master while power is delivered in.
> > With 5W max dissipated in the card, that'd allow a battery to charge
> > while being used, depending on the details of the ioboard.
> 
>  yyep.
> 
>  oh i forgot to answer the question about USB3, didn't i?  well, i
> thought about it.  it would be necessary to reduce the number of GPIOs
> to 12 from 16.  i know, i know.  i really should do that.  i just like
> powers-of-two.  *sigh*.
> 
> l.
> 
> 

If you like powers of two:  Reduce it to 8 GPIOs, and reserve the other
4 lines for some future (USB4.0, SATA4, etc.)