Re: Support for intel Xscale [PXA250], real time, geode
On Wed 10 Apr, Adam C Powell IV wrote:
> Jean-Luc Lebec wrote:
> > I need argument to choose debian...
> For some general Debian advocacy, there's my Debian page at
> http://lyre.mit.edu/~powell/debian.html .
> The only downside I can think of is the overhead of the package management
> system (mainly /var/lib/dpkg), which can be a burden for small systems
> like handhelds;
It certainly is - we've done a debian-based distro for the psion 5mx,
(http://www.psilinux.org/ ) but dpkg really does use megs and megs of both
ram and store. It works so long as your 'small' is about 16MB RAM+ and >40MB
store+ but less than that and you start to struggle.
> in that case you probably want Familiar, which is very
> similar to Debian.
In fact it more or less is debian with a leaner package format and all the
docs unused locales and other 'bloat' removed. And a dpkg replacement 'ipkg'
which (at the expense of some simplification) uses a few tens of K of
metadata and RAM.
Or look at emdebian/emdebsys which generates a one-off functioning system of
the smallest possible size, as opposed to one with live-installable/removable
packages (like familiar or psilinux or debian itself). Emdebsys works with
i386 and arm at the moment, so it might be worth checking out.
jean-luc.lebec@horanet.com wrote:
> - are there some projects with NS Geode GX1 processor, and next (SC1200,
> 2200, 3200)
Not that I am aware of.
> - have anybody experience with ECM5410 board from evalue-tech ?
not heard of it
> - I heard about the SA1110 from Intel, but now that they have released
> their new PXA250 processor, which have a Xscale architecture, I wonder
> whether it is supported by Debian ?
yes debian supports all arm processors from the Arm3 upwards. SA11x0 (and
strongarm) support will be around for a long time to come - there are a lot
of devices out there.
> - is there a list talking on Real time, like RTlinux, or similar ?
RT on arm is a developing area. I am not ware of any mailing lists that talk
about it specifically. I do know that KURT was the first to support arm in
kernel 2.4, and RTAI now has arm support. RED-ICE have support but only for a
2.0 kernel last time I looked. Last time I asked, monta vista and lineo were
'working on it' and 'about to start working on it' respectively. This is all
a few months ago so things will have moved on a little. Don't expect to get
real-time on arm without rolling your sleeves up (although it may be possible
to do it by spending a lot of money to get someone else to roll their sleeves
up by now :-)
Wookey
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