Galileo 64240

Galileo 64240

[ellis]

Is there any support code around for the Galileo 64240?  A serial
driver would be really nice ;)

RE: Galileo 64240

[Matthew Dharm]

We've got a 64240-based board that we're going to be porting Linux
to... tho we're not using the on-board MPSC ports.  I doubt anyone is
building a board using the MPSC ports -- it's just too difficult to
drive them, and 16550-like parts are too cheap.

If you're trying to bring up a 64240-based board under linux, perhaps
sharing work would be good?

Matt

--
Matthew D. Dharm                            Senior Software Designer
Momentum Computer Inc.                      1815 Aston Ave.  Suite 107
(760) 431-8663 X-115                        Carlsbad, CA 92008-7310
Momentum Works For You                      www.momenco.com

> -----Original Message-----
> From: owner-linux-mips@oss.sgi.com
> [mailto:owner-linux-mips@oss.sgi.com]On Behalf Of ellis@spinics.net
> Sent: Monday, January 07, 2002 2:18 PM
> To: linux-mips@oss.sgi.com
> Subject: Galileo 64240
>
>
> Is there any support code around for the Galileo 64240?  A serial
> driver would be really nice ;)
>

RE: Galileo 64240

[Matthew Dharm]

We've got a 64240-based board that we're going to be porting Linux
to... tho we're not using the on-board MPSC ports.  I doubt anyone is
building a board using the MPSC ports -- it's just too difficult to
drive them, and 16550-like parts are too cheap.

If you're trying to bring up a 64240-based board under linux, perhaps
sharing work would be good?

Matt

--
Matthew D. Dharm                            Senior Software Designer
Momentum Computer Inc.                      1815 Aston Ave.  Suite 107
(760) 431-8663 X-115                        Carlsbad, CA 92008-7310
Momentum Works For You                      www.momenco.com

> -----Original Message-----
> From: owner-linux-mips@oss.sgi.com
> [mailto:owner-linux-mips@oss.sgi.com]On Behalf Of ellis@spinics.net
> Sent: Monday, January 07, 2002 2:18 PM
> To: linux-mips@oss.sgi.com
> Subject: Galileo 64240
>
>
> Is there any support code around for the Galileo 64240?  A serial
> driver would be really nice ;)
>

Re: Galileo 64240

[Paul Kasper]

ellis@spinics.net wrote:
> 
> Is there any support code around for the Galileo 64240?  A serial
> driver would be really nice ;)

I started an MPSC/Uart driver for the 64240/64240A chips.  Didn't get
much of it working when we got fed up with all of the Galileo errata
about which registers could or could not be read at which times and
their confusion as to whether or not they were planning to ever fix the
errata.

We broke down and added a 162550 UART to the board.

The driver code was abandoned in the midst of early debugging stages and
is in a horrific state.  You're welcome to a copy if you really can't
find something better.

-- 
 /"\ . . . . . . . . . . . . . . . /"\
 \ /   ASCII Ribbon Campaign       \ /     Paul R. Kasper
  X    - NO HTML/RTF in e-mail      X      Patton Electronics Co.
 / \   - NO MSWord docs in e-mail  / \     301-975-1000 x173

Re: Galileo 64240

[Paul Kasper]

ellis@spinics.net wrote:
> 
> Is there any support code around for the Galileo 64240?  A serial
> driver would be really nice ;)

I also have a hacked-up port of MontaVista's HHLinux gt96100eth code
that is functional on 64240 and 64240A in little-endian mode and
untested in BE.  It still lacks support for any "advanced" features of
the Galileo chips.

-- 
 /"\ . . . . . . . . . . . . . . . /"\
 \ /   ASCII Ribbon Campaign       \ /     Paul R. Kasper
  X    - NO HTML/RTF in e-mail      X      Patton Electronics Co.
 / \   - NO MSWord docs in e-mail  / \     301-975-1000 x173

RE: Galileo 64240

[Matthew Dharm]

I would love a copy of that, personally.  Could you send it to me (or
the list)?

Matt

--
Matthew D. Dharm                            Senior Software Designer
Momentum Computer Inc.                      1815 Aston Ave.  Suite 107
(760) 431-8663 X-115                        Carlsbad, CA 92008-7310
Momentum Works For You                      www.momenco.com

> -----Original Message-----
> From: owner-linux-mips@oss.sgi.com
> [mailto:owner-linux-mips@oss.sgi.com]On Behalf Of Paul Kasper
> Sent: Tuesday, January 08, 2002 4:46 AM
> To: ellis@spinics.net
> Cc: linux-mips@oss.sgi.com
> Subject: Re: Galileo 64240
>
>
> ellis@spinics.net wrote:
> >
> > Is there any support code around for the Galileo 64240?  A serial
> > driver would be really nice ;)
>
> I also have a hacked-up port of MontaVista's HHLinux gt96100eth code
> that is functional on 64240 and 64240A in little-endian mode and
> untested in BE.  It still lacks support for any "advanced"
> features of
> the Galileo chips.
>
> --
>  /"\ . . . . . . . . . . . . . . . /"\
>  \ /   ASCII Ribbon Campaign       \ /     Paul R. Kasper
>   X    - NO HTML/RTF in e-mail      X      Patton Electronics Co.
>  / \   - NO MSWord docs in e-mail  / \     301-975-1000 x173
>

RE: Galileo 64240

[Matthew Dharm]

I would love a copy of that, personally.  Could you send it to me (or
the list)?

Matt

--
Matthew D. Dharm                            Senior Software Designer
Momentum Computer Inc.                      1815 Aston Ave.  Suite 107
(760) 431-8663 X-115                        Carlsbad, CA 92008-7310
Momentum Works For You                      www.momenco.com

> -----Original Message-----
> From: owner-linux-mips@oss.sgi.com
> [mailto:owner-linux-mips@oss.sgi.com]On Behalf Of Paul Kasper
> Sent: Tuesday, January 08, 2002 4:46 AM
> To: ellis@spinics.net
> Cc: linux-mips@oss.sgi.com
> Subject: Re: Galileo 64240
>
>
> ellis@spinics.net wrote:
> >
> > Is there any support code around for the Galileo 64240?  A serial
> > driver would be really nice ;)
>
> I also have a hacked-up port of MontaVista's HHLinux gt96100eth code
> that is functional on 64240 and 64240A in little-endian mode and
> untested in BE.  It still lacks support for any "advanced"
> features of
> the Galileo chips.
>
> --
>  /"\ . . . . . . . . . . . . . . . /"\
>  \ /   ASCII Ribbon Campaign       \ /     Paul R. Kasper
>   X    - NO HTML/RTF in e-mail      X      Patton Electronics Co.
>  / \   - NO MSWord docs in e-mail  / \     301-975-1000 x173
>

Re: Galileo 64240

[Paul Kasper]

Matthew Dharm wrote:
> 
> I would love a copy of that, personally.  Could you send it to me (or
> the list)?
> 
> Matt
> 
> --
> Matthew D. Dharm                            Senior Software Designer
> Momentum Computer Inc.                      1815 Aston Ave.  Suite 107
> (760) 431-8663 X-115                        Carlsbad, CA 92008-7310
> Momentum Works For You                      www.momenco.com
> 
> > I also have a hacked-up port of MontaVista's HHLinux gt96100eth code
> > that is functional on 64240 and 64240A in little-endian mode and
> > untested in BE.  It still lacks support for any "advanced"
> > features of
> > the Galileo chips.
> >
> > --
> >  /"\ . . . . . . . . . . . . . . . /"\
> >  \ /   ASCII Ribbon Campaign       \ /     Paul R. Kasper
> >   X    - NO HTML/RTF in e-mail      X      Patton Electronics Co.
> >  / \   - NO MSWord docs in e-mail  / \     301-975-1000 x173
> >

Matt:

I'll zip up a copy of the gt64240eth driver as soon as I can track down
the relvant include files, and send it to you.  I should mention that
I'm still running it on a 2.4.0-test9 kernel.

Maybe after you verify that it is complete, we can post it to the list.

Our board configuration is a QED RM5261A with GT64240A, Intel Flash,
STK1744 RTC/NVRAM, 16C2550 DUART, and a bunch of Conexant HDLC I/O --
not all of which is coded yet.

I do have the basic arch/mips/patton/{generic,dsl3224} board support
trees which were based on mips/atlas and ev96100 ports but,
unfortunately, I still reference some Galileo/VxWorks sample code in the
interrupt handler.  This needs to be cleaned up.  I originally used
their code only because I did not have a working 64240 board to test
with and the Galileo datasheets are so ambiguous that I thought that
their sample code programmers might have had some hidden insight into
the chips.  I since have learned that the opposite is true and need to
clean all of that stuff out.

--
Paul K.
--
 /"\ . . . . . . . . . . . . . . . /"\
 \ /   ASCII Ribbon Campaign       \ /     Paul R. Kasper
  X    - NO HTML/RTF in e-mail      X      Patton Electronics Co.
 / \   - NO MSWord docs in e-mail  / \     301-975-1000 x173

Re: Galileo 64240

[Pete Popov]

The GT64260 is the PPC equivalent of the mips 64240.  I'm pretty sure
our PPC guys did some work with the 64260 and they might have one of the
serial ports working as a simple uart. Check the community PPC tree. If
you don't find anything there, post to the ppc mailing list to see what
people have done with the 64260.  Pretty much everything should be
portable to the 64240 and you might get feedback on hardware bugs and
workarounds.

Pete

Re: Galileo 64240

[ellis]

>>Is there any support code around for the Galileo 64240? A
>>serial driver would be really nice ;)

>I started an MPSC/Uart driver for the 64240/64240A chips. Didn't
>get much of it working when we got fed up with all of the
>Galileo errata about which registers could or could not be read
>at which times and their confusion as to whether or not they
>were planning to ever fix the errata.

>We broke down and added a 162550 UART to the board.

I really wish that option was available. ;)

>The driver code was abandoned in the midst of early debugging
>stages and is in a horrific state. You're welcome to a copy if
>you really can't find something better.

It looks like we have something that works for our in-house
(non-linux) OS. I guess I'll use that code as an example and see
if I can get a real driver working.

--
http://www.spinics.net/linux/