That was pretty much also what I expected to. The applicatrion seemed never
to use any of the hardware configuration. Is there some reference for
porting it to an 32-bits design? I've been look at the other DBUG
applications but these seems to use mostly 16-bits split mode and some of
them use other Registers names. Since some I've seen some few discussion
about using 32-bit mode for teh MCF5208, does anybody want to share some
there source code about the SDRAM initialisation for instance? Or any
suggestoin are alwas welcome.
Ferry de Groot
From: "Bob Furber" <[EMAIL PROTECTED]>
Reply-To: uClinux development list <[email protected]>
To: "uClinux development list" <[email protected]>
Subject: RE: [uClinux-dev] Porting DBUG MCF5208 to 32-bits mode
Date: Fri, 2 Feb 2007 18:06:34 -0800
Hi Ferry,
> Anyway where can I find the system initialisation of the MCF5208 in the
> uClinux distribution?
Much of the initialization is done by dBUG, which then runs uClinux. You
should be able to download the dBUG source code from the Freescale website.
I believe that uClinux probes the flash to figure out how to interact with
it ..provided it is CFI flash. I am not certain about this, though.
Bfn,
Bob Furber
> Ferry de Groot
>
> >From: "Bob Furber" <[EMAIL PROTECTED]>
> >Reply-To: uClinux development list <[email protected]>
> >To: "uClinux development list" <[email protected]>
> >Subject: RE: [uClinux-dev] Porting DBUG MCF5208 to 32-bits mode
> >Date: Mon, 29 Jan 2007 09:21:36 -0800
> >
> >Hi Ferry,
> >
> > > We've just made an board with MCF5208EVB with, 2 x 16 bits
> > > K4S641632H SDRAM
> > > and 2 x 16 bits S29JL032H Flash memory. Since the evalution
> board design
> > > :
> > > In other words is there an part
> > > in the flash memory where its stores the hardware
> configuration, such as
> > > telling it's running in 32 bits SDRAM mode? Or does the pin
> > > DRAMSEL describe this all?
> >
> >You will have to modify sysinit.c (..\proj\m5208evb\src\sysinit.c on
the
> >M5208EVB dBUG project) to support your SDRAM.
> >
> >You will also have to change ..\src\dev\flash\amd_flash.c and
> amd_flash.h
> >to
> >support your flash and in the equivalent of
> ..proj\m5208evb\src\m5208evb.h
> >you will wnat to change "#define AMD_FLASH_AM29BDD160GB_16BIT" to
specify
> >your flash.
> >
> > > DBUG uses several files for programming configuration files the
> > > programmer
> > > such as the mcf5208.cfg, but these seem to used by the programmer
> > > it self.
> >
> >I am not sure what you mean by "the programmer"
> >
> > > Some of the linker configuration files flash.lcf and sdram.lcf in
> > > 5208_DBUG\dbug\proj\m5208evb\build\mwerks refer to the hardware
> > > configuration, but I can't see any reference to 32 bits SDRAM
> mode. Do I
> > > need to change one of these files to get it running.
> >
> >I can't speak to MWerks. But, gor GCC you will want to adjust
> RAM and flash
> >sizes in the equivalent of \proj\m5208evb\build\gnu\flash.ld.
> >
> > > Ferry de Groot
> > >
> > > _________________________________________________________________
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