How to do IO mapped Implimentation ???

Jeyner Gil Caga jeynergilcaga at gmail.com
Tue Jan 1 01:43:10 EST 2008


Oh, I just missed the io mapped in your previous email. Unfortunately, my
experience is only limited to memory map. I think they should be the same.

On 12/31/07, Misbah khan <misbah_khan at engineer.com> wrote:
>
>
> You are absolutly right and i guess it will certainly work for 8248 as
> well ,
> but the only concern is that " here in mine case the register is not
> memory
> mapped where as its IO mapped " we have to consider the memory as IO port
> and then access the data ....
>
> What you have used i guess its memory mapped ...Is it that accessing
> memory
> mapped is same as io mapped ?????
>
>
> ---Misbah
>
> Misbah khan wrote:
> >
> > Hi all...
> >
> > I am writing a driver in which device port is mapped to CPLD and 8 bit
> > data bus is directly connected from processor to CPLD. Read write on
> CPLD
> > memory mapped (buffer/register) is required to control the device. This
> is
> > now IO mapped to processor.
> >
> > I need to know whether i am right if i impliment like this :-
> >          addr=ioremap(base_addr);          // Remap to Mem mapped
> address
> >          outb(addr) and inb(addr);
> >
> > Please suggest me if i am wrong or there could be better solution to
> this
> > .
> >
> > -----Misbah <><
> >
> >
>
> --
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>
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