Re: [ECOS] CF driver

[Andrea Acquaviva <aacquaviva at deis dot unibo dot it>]

Gary Thomas wrote:

> On 21-May-2001 Andrea Acquaviva wrote:
> > Gary Thomas wrote:
> >
> >>
> >> On 21-May-2001 Andrea Acquaviva wrote:
> >> > Hi all,
> >> >
> >> > I'm writing an eCos driver for the CF interface on my Strongarm 1100
> >> > based board. I'm modifing the same driver written for the assabet board.
> >> > The main difference is that the assabet driver uses the SA1110 to
> >> > program the pcmcia interface, while on my board there is not the SA1110
> >> > companion chip.
> >> >
> >> > In the assabet driver the CF is programmed also by writing on the BCR
> >> > register of the SA1110, in particular the interesting instruction is:
> >> >
> >> >  assabet_BCR(SA1110_BCR_CF_POWER |
> >> >                         SA1110_BCR_CF_RESET |
> >> >                         SA1110_BCR_CF_BUS,
> >> >                         SA1110_BCR_CF_POWER_ON |
> >> >                         SA1110_BCR_CF_RESET_ENABLE |
> >> >                         SA1110_BCR_CF_BUS_ON);
> >> >
> >> > My question is: what's the mean of the SA1110_BCR_CF_BUS flag? Is it a
> >> > particular assabet feature or do it perform some actions on the
> >> > PCMCIA interface pins that I must be aware?
> >>
> >> The interface on the SA1110 can be controlled by three different pins.
> >>
> >>   Power - whether or not Vcc is applied to the bus
> >>   Bus   - whether or not the bus drivers are enabled
> >>   Reset - whether or not the device is in reset
> >>
> >> Not all controllers allow for such fine control.  In many cases, the
> >> power and bus controls are grouped together.
> >
> > Ok, thanks.
> > Now I have another question:
> > I have to build the add the net package, but I find an error during the
> > compilation:
> >
> > ecoscvs/ecos/packages-net/net/tcpip/current/src/ecos/support.c:85: #error At
> > least one network driver
> > framework must be defined!
> >
> > I found that the problem is that CYGPKG_NET_DRIVER_FRAMEWORK is missing. How
> > must I define it ?
>
> You need to add the 'CYGPKG_IO_ETH_DRIVERS' package.

I give the following commands in order to configure the network:

ecosconfig new badge net

ecosconfig add CYGPKG_IO_PCMCIA;
ecosconfig add CYGPKG_DEVS_ETH_CF;

also in ecos.ecc, there is the package:

package -hardware CYGPKG_DEVS_PCMCIA_BADGE current.

The following packages are installed as a consequence of the net option:

package -template CYGPKG_NET current ;
package -template CYGPKG_IO_ETH_DRIVERS current ;

Andrea.

--
Ing. Andrea Acquaviva
D.E.I.S. - Universita' di Bologna
V.le Risorgimento, 2    40136 BOLOGNA (ITALY)
Tel: (+39) 051 20 93787 Fax: (+39) 051 2093786