[Soekris] Soekris-tech Digest, Vol 33, Issue 18

Sun Nov 19 18:32:28 UTC 2006

You may have to flash the firmware on the flash disk to set it
To master. There may be a flash utility tool from Samsung.

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Subject: Soekris-tech Digest, Vol 33, Issue 18

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Today's Topics:

   1. Forcing CF master? (Richard Gooch)
   2. Power management on a Net4801 (Arnau Sanchez)
   3. Re: GPIO support for the net-4801 on Linux (Arnau Sanchez)
   4. Re: Power management on a Net4801 (Ted Phelps)

----------------------------------------------------------------------

Message: 1
Date: Sat, 18 Nov 2006 13:09:56 -0800
From: Richard Gooch <rgooch at safe-mbox.com>
Subject: [Soekris] Forcing CF master?
To: soekris-tech at lists.soekris.com
Message-ID: <17759.30372.27696.124902 at mailix.sanjose.privnets>
Content-Type: text/plain; charset=us-ascii

  Hi, all. I've just gotten a net4801 and my 2 GB "Elite Pro" CF card
is coming up as a slave device, even though I have set "FLASH=Primary"
in my BIOS. Looking through the archives, I see the following post:

On Thu Oct 12 02:26:02 UTC 2006, David Zelinsky writes:
> I tried both cards in both boxes.  The behavior is the same in the
> two boxes.  One of the cards (Card A) shows up as Primary Master
> (hda) with the BIOS setting FLASH=Primary, and as Primary Slave
> (hdb) with FLASH=Secondary.  But the other card (Card B) always
> shows up as Primary Slave (hdb), regardless of the FLASH setting.
> 
> For the record, Card A is EPMemory "X80" 2GB, which the BIOS
> identifies as simply "Flash Card".  Card B is an ATP AF2GCF 2GB, and
> the BIOS identifies it as "SAMSUNG CF/ATA".

This doesn't seem to have been resolved. The BIOS identifies my CF
card thus:
Pri Sla  SAMSUNG CF/ATA                  LBA Xlt 1016-64-63  2048 Mbyte

My board has comBIOS ver. 1.28. Is there any way to force my CF card
to be the primary device? I've even tried attaching a 2.5" HDD which
was set to "slave" and it doesn't help. I really want my CF card to be
my primary IDE device, but I don't want to have to speculatively buy a
new CF card.

				Regards,

					Richard....

------------------------------

Message: 2
Date: Sat, 18 Nov 2006 17:36:09 -0500
From: Arnau Sanchez <arnau at ehas.org>
Subject: [Soekris] Power management on a Net4801
To: soekris-tech at lists.soekris.com
Message-ID: <455F8AD9.8010801 at ehas.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi,

I have a Net4801 with Linux 2.6.17 and I wanted to add some power management
to 
save power. Taking a look on that manual:

http://www.brixandersen.dk/papers/net4801/net4801.html

I saw that there is a feature called "Suspend Modulation":

3.1.1. Suspend Modulation

To enable the Suspend Modulation feature of the Geode SC1100 processor you
need 
the kernel options listed below.

     * CPU Frequency scaling (CONFIG_CPU_FREQ)
     * Cyrix MediaGX/NatSemi Geode Suspend Modulation
(CONFIG_X86_GX_SUSPMOD)

I use a debian kernel 2.6.17 with these options already enabled, that way:

CONFIG_CPU_FREQ=y
CONFIG_X86_GX_SUSPMOD=m

But when I try to install the module it fails:

# modprobe gx-suspmod
FATAL: Error inserting gx_suspmod 
(/lib/modules/2.6.17-voyage/kernel/arch/i386/kernel/cpu/cpufreq/gx-suspmod.k
o): 
No such device

Anyone knows the reason?

I want to use this feature to reduce power consumption on night, but perhaps
is 
there any better way to achieve this...

thanks very much!

arnau

------------------------------

Message: 3
Date: Sat, 18 Nov 2006 17:38:34 -0500
From: Arnau Sanchez <arnau at ehas.org>
Subject: Re: [Soekris] GPIO support for the net-4801 on Linux
To: soekris-tech at lists.soekris.com
Message-ID: <455F8B6A.3010302 at ehas.org>
Content-Type: text/plain; charset=ISO-8859-2; format=flowed

Jan Neskudla escribi?:

>> By the way, has anybody tested the TTL COM2 included in the 20-pin GPIO
>> connector?

> i was playing a bit with that COM port. It it`s not a COM2 TTL , it is
only
> TTL of COM1 it means that you can use DB-9 connector to use COM1 with
RS232 bus
> driver or plug your device directly to TTL input of COM1. So there are
only two
> serial ports COM0 COM1. I case of using TTL levels the driver chip MAX???
is
> disabled (i thing).

I've tested on my net4801 and it works well. It has two separated COM, the 
external and the internal (this ine accesible both via RS232 or TTL levels).

sk1:/etc# setserial /dev/ttyS0
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4

sk1:/etc# setserial /dev/ttyS1
/dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3

(using linux 2.6.17)

regards
arnau

------------------------------

Message: 4
Date: Sun, 19 Nov 2006 04:55:06 -0600
From: Ted Phelps <phelps at gnusto.com>
Subject: Re: [Soekris] Power management on a Net4801
To: Arnau Sanchez <arnau at ehas.org>, soekris-tech at lists.soekris.com
Message-ID: <12558.1163933706 at laika.gnusto.com>

Arnau Sanchez writes:
> But when I try to install the module it fails:
> 
> # modprobe gx-suspmod
> FATAL: Error inserting gx_suspmod 
>
(/lib/modules/2.6.17-voyage/kernel/arch/i386/kernel/cpu/cpufreq/gx-suspmod.k
o): 
> No such device
> 
> Anyone knows the reason?

According to the comment at the begining of gx-suspmod.c, it works with
the Geode GX1/GXLV, not the Geode SC1100.

Henrik, did you manage to get this to work at some point?

Cheers,
-Ted

------------------------------

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