Re: [ECOS] SCC driver for 8xx PowerPC processors

["Gary D. Thomas" <gary dot thomas at mind dot be>]

On Sat, 2003-03-08 at 16:13, Frank Robbins wrote:
> I am confused Guy's..?
> 
> I updated the Redboot flash for Paul so he should already have the SCC1
> running ???
> This is already in the tree ....?
> 
> Have you tried the SCC1 with the current board updated Paul? Or am I having
> a late night brain haemorrhage?
> 

Yes, there is support for this device in RedBoot, but not as an 
interrupt driven device in eCos (these are very different drivers).

> Regards
> 
> Frank Robbins
> 
> Analogue & Micro Ltd,
> 9 Clytha Park Road
> Newport
> South Wales
> NP20 4US
> 
> Email : Frank dot Robbins at Analogue-Micro dot com
> Email : Frank at Analogue-Micro dot com
> 
> http://www.Analogue-Micro.com
> 
> Tel: (44) (0)1633 666787
> Fax: (44) (0)1633 666788
> 
> ----- Original Message -----
> From: "Gary D. Thomas" <gary dot thomas at mind dot be>
> To: "Paul Randall" <prandall at delta-info dot com>
> Cc: "eCos Discussion" <ecos-discuss at sources dot redhat dot com>
> Sent: Friday, March 07, 2003 10:20 PM
> Subject: Re: [ECOS] SCC driver for 8xx PowerPC processors
> 
> 
> > On Fri, 2003-03-07 at 15:12, Paul Randall wrote:
> > > Hi,
> > >
> > > I have an A&M Viper board which has a RS-232 serial port on SCC1, and a
> > > debug port on SMC1.  I need to use the SCC1 port on the Viper but there
> > > is only a serial driver for SMC1 in eCos.  I've ported the SCC1/2 eCos
> > > driver for the 8260 PowerPC to the 8xx PowerPC processor (It seemed
> > > easier than porting from the 8xx SMC1/2 driver) but I'm not sure the
> > > best way to integrate the driver into eCos.
> > >
> > > When I ported the driver, I created a new directory
> > > \packages\devs\serial\powerpc\quiccscc which had a ser_quicc_scc.cdl
> > > file and a quicc_scc_serial.c and .h files in the proper directory
> > > structure.  I set up the QUICC SCC driver as a package separate from the
> > > QUICC SMC package.  However, when I tried to make the configuration when
> > > both SMC1 and SCC1 were enabled, the cdl files for both added a
> > > CYGDAT_IO_SERIAL_DEVICE_HEADER define into the system.h file and I got
> > > compile warnings because of the duplicate define.
> > >
> > > Is this the best way to do this or should the SMC and SCC QUICC drivers
> > > be in the same file?
> > >
> >
> > Not necessarily the same file (although I doubt that the differences
> > between SMC and SCC are so great that it requires two files!), but
> > certainly within the same package - which means the same directory
> >   .../devs/serial/powerpc/quicc/
> >
> > > Also, once I have tested the driver, how should I submit this to the
> > > eCos maintainers?  As an .epk file?  To the eCos patch list?  I assume I
> > > need to fill out a copyright assignment and employer disclaimer?  Should
> > > this still be sent to the Legal Department at Red Hat?
> >
> > Since this would be an adjunct to an existing package, patches would
> > be the way to go.  If these are substantial patches, then you will
> > have to do the copyright assignment dance as well.
> >
> > If you want to pass your work to me, I can comment directly on how
> > to incorporate my suggestions with your code.  I have a Viper here
> > to test it with.
> >
> > --
> > .--------------------------------------------------------.
> > |       Mind: Embedded Linux and eCos Development        |
> > |--------------------------------------------------------|
> > | Gary Thomas              email:  gary dot thomas at mind dot be   |
> > | Mind ( http://mind.be )  tel:    +1 (970) 229-1963     |
> > | gpg: http://www.chez-thomas.org/gary/gpg_key.asc       |
> > '--------------------------------------------------------'
> >
> >
> > --
> > Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> > and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> >
> >
> 
-- 
.--------------------------------------------------------.
|       Mind: Embedded Linux and eCos Development        |
|--------------------------------------------------------|
| Gary Thomas              email:  gary dot thomas at mind dot be   |
| Mind ( http://mind.be )  tel:    +1 (970) 229-1963     |
| gpg: http://www.chez-thomas.org/gary/gpg_key.asc       |
'--------------------------------------------------------'


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