Gentoo Logo
Gentoo Spaceship




Note: Due to technical difficulties, the Archives are currently not up to date. GMANE provides an alternative service for most mailing lists.
c.f. bug 424647
List Archive: gentoo-embedded
Navigation:
Lists: gentoo-embedded: < Prev By Thread Next > < Prev By Date Next >
Headers:
To: gentoo-embedded@g.o
From: Heath Holcomb <liquidcable@...>
Subject: Re: new ARM920T based computer design (EP9315)
Date: Mon, 30 Jan 2006 08:31:42 -0600
On Monday 30 January 2006 03:22, KIMURA Masaru / hiyuh wrote:
> On 20:42 Fri 27 Jan     , Heath Holcomb wrote:
> > The specific part is Cirrus Logic EP9315, it's an ARM920T based chip.  It
> > has the SDRAM interface, flash interface (NOR), MAC (not PHY), and an
> > MMU.
>
> (SNIP)
>
> > Any advice on this chip or any ARM would be nice.  I plan on use embedded
> > Gentoo as the base of our OS.  The development board comes with CE 5.0
> > and Linux (Debian based).  There is a lot of unknowns (how does Linux fit
> > onto the NOR flash, what about the file system, etc...), so any help
> > would be appreciated if anyone has done this before.
>
> Yeah, it's nice.
> I'm playing with other EP9315 SBC, too. (a.k.a Armadillo-9)
> http://armadillo.atmark-techno.com/armadillo-9
> Unfortunately, it has only Japanese web pages.
> But, this corporation published by some English PDF specification or so.
> http://download.atmark-techno.com/armadillo-9/doc/armadillo9_hardware_manua
>l_en-1.0.2.pdf
> http://download.atmark-techno.com/armadillo-9/doc/armadillo9_software_manua
>l_en-1.0.2.pdf
>
> BTW, GAO Engineering provides like that SBC.
> It's in "Enbedded Linux Boards" category in http://www.gaoengineering.com
>
> And then, as you know,
> "Unofficial Linux 2.6.x support for Cirrus EP93xx processors homepage" is.
> http://members.inode.at/m.burian/ep93xx/
>
> > I'll also be adding a section to the how-to that deals with ARM based
> > devices.
>
> It would be nice.
> I had my EP9315 SBC runs with Gentoo.
> But now, it has GNU glibc based userland.
> I'll play to uClibc based Gentoo on it.

Thanks for the links!  It looks like the stock 2.6.x kernel does not work 
fully with the EP93xx chips, right?

Do you know anything about running the kernel out of NOR flash?  I ask because 
NOR flash can execute out of inself, instead of having to copy the kernel to 
RAM and run from RAM.  This makes boot times faster, but NOR flash does not 
support filing systems the way NAND flash does (think compact flash, 
usbsticks, etc..).


-- 
heath holcomb
liquidcable at bulah.com
www.bulah.com
-- 
gentoo-embedded@g.o mailing list


Replies:
Re: new ARM920T based computer design (EP9315)
-- KIMURA Masaru / hiyuh
References:
new ARM920T based computer design (EP9315)
-- Heath Holcomb
Re: new ARM920T based computer design (EP9315)
-- KIMURA Masaru / hiyuh
Navigation:
Lists: gentoo-embedded: < Prev By Thread Next > < Prev By Date Next >
Previous by thread:
Re: new ARM920T based computer design (EP9315)
Next by thread:
Re: new ARM920T based computer design (EP9315)
Previous by date:
Re: new ARM920T based computer design (EP9315)
Next by date:
Re: new ARM920T based computer design (EP9315)


Updated Jun 17, 2009

Summary: Archive of the gentoo-embedded mailing list.

Donate to support our development efforts.

Copyright 2001-2013 Gentoo Foundation, Inc. Questions, Comments? Contact us.