[ECOS] PCMCIA Slot State Location

[Trenton D. Adams]

> -----Original Message-----
> From: gary@chez-thomas.org [ mailto:gary@chez-thomas.org ] On 
> Behalf Of Gary Thomas
> Sent: Thursday, June 21, 2001 1:30 PM
> To: Trenton D. Adams
> Cc: eCos
> Subject: RE: [ECOS] PCMCIA Slot State Location
> On 21-Jun-2001 Trenton D. Adams wrote:
> > This is one of the lines in the assabet PCMCIA Driver.
> > 
> > unsigned long new_state = *(unsigned*)SA11X0_GPIO_PIN_LEVEL;
> > 
> > SA11X0_GPIO_PIN_LEVEL must obviously be a memory address 
> for card slot 
> > state information.  Does anyone have any idea where this 
> would be for 
> > the EDB7111-2 board?
> > 
> > Also, is the slot state information standard between all PCMCIA 
> > devices?=


> No, it's specific to your platform and all depends on what 
> you need to know to keep the cards & slots happy.  Things 
> like "is Vcc applied".

So, what you're saying is it could vary well be that I would have to
access the PCMCIA controller directly to get the information I need then
right?

> Note: the PCMCIA spec is very particular about such things, 
> especially the timing of how and when certain signals and 
> voltages should be applied.
>