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Date:      Mon, 03 Feb 2014 06:54:16 -0700
From:      Ian Lepore <ian@FreeBSD.org>
To:        Pete Wright <pete@nomadlogic.org>
Cc:        freebsd-arm@FreeBSD.org
Subject:   Re: Utilite Freescale i.MX6 support
Message-ID:  <1391435656.13026.78.camel@revolution.hippie.lan>
In-Reply-To: <20140203044149.GA56291@mail.nomadlogic.org>
References:  <52E94AE3.5080404@nomadlogic.org> <1391374550.13026.60.camel@revolution.hippie.lan> <20140203044149.GA56291@mail.nomadlogic.org>

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On Sun, 2014-02-02 at 20:41 -0800, Pete Wright wrote:
> On Sun, Feb 02, 2014 at 01:55:50PM -0700, Ian Lepore wrote:
> > On Wed, 2014-01-29 at 10:39 -0800, Pete Wright wrote:
> > > Hello,
> > > I have recently purchase this device and am interested in trying to get
> > > FreeBSD running on it:
> > > 
> > > http://utilite-computer.com/web/utilite-models
> > > 
> > > I currently have the system booting fine with the provided Debian image
> > > they ship with these system.  At the end of this message is the output
> > > of dmesg from linux-land.
> > > 
> > > Helpful documentation is also available here:
> > > http://utilite-computer.com/download/documentation//utilite/utilite-technical-reference-manual.pdf
> > > 
> > > From what I can tell Utilite has done a good job at being open about
> > > their spec's and components.  Hopefully this will help get it ported.  I
> > > am personally excited about the dual Intel GBE NIC's on this system and
> > > would love to test this box out as an embedded router/firewall/nat device.
> > > 
> > > Is there a good reference I can start from for this chipset?  I am not
> > > %100 clear on which guide I should be following.
> > > 
> > > Thanks in advance!
> > > -pete
> > > 
> > > 
> > > <begin Linux dmesg>
> > > [snipped]
> > > 
> > 
> > I'm sorry it has taken me so long to reply to this.  Until today my
> > reply would have had to been basically "freebsd will only kinda-sorta
> > run on that box," and every day I've been hoping to fix the
> > show-stopping bug and have something better to report.  As of today
> > (r261410) the infamous wrong-endian bug is fixed and I think you won't
> > have too much trouble getting freebsd running on that unit.
> > 
> no worries thanks for the reply!
> 
> <snip>
> 
>  
> > To get started, you should probably start with the Wandboard dts files
> > and kernel config.  One thing that jumps out at me is that the Utilite
> > uses uart ports 2 and 4, so to have a serial console for debugging
> > you'll need to change the dts source to enable uart2 and select it as
> > the console in the choosen {...} block.  Unfortunately, because it's
> > Compulab, you'll probably have to buy their overpriced serial cable with
> > the weird connector on it (they do the same thing on the FitPc2).
> > 
> 
> thanks for the pointers!  i was lucky enough to have them include the
> serial console cable with the box at no additional cost so no worries there.
> 
> i did create an image using crochet-freebsd using the  wanboard-quad
> config.  it was failing trying to load uboot it looked like (no output
> on console) so i have some testing to do on that end (and bug reports
> too as well).
> 
> i will re-build the images tonight to grab the latest patches as well as
> including the change for dts source as well.
> 
> since the box already has uboot installed on it i was assuming i could
> just copy over the kernel image via nfs or tftp...so i will try that as
> well.
> 
> cheers!
> -pete
> 

I haven't gotten ubldr to work yet, I'm going to look into that this
week.  To net-load and launch the kernel directly, something like this
should work:

tftp 12000000 172.22.42.240:/wand/boot/kernel/kernel
go 12000100

When rebuilding u-boot for the Utilite, some config may need to be
changed to use uart2 or 4 for the console.  In theory, Compulab should
make the config and any other u-boot source changes available, since
it's GPL.

-- Ian





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