Re: [ECOS] CF driver

[Gary Thomas <gthomas at cambridge dot redhat dot com>]

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.