Re: [ECOS] Memory Mapped register access in 80321

[normanlaose at catcha dot com]

Hello Mark,

      Thanks for the response.

      I am curious. In Linux, I have to access these address
using virtual address got from the ioremap(). I thought there
was concept of virtual address in Redboot. Please correct me.

Regards


Quoting Mark Salter <msalter@redhat.com>:

> >>>>> normanlaose  writes:
> 
> > I am new to Redboot and I am writting a Redboot driver 
> > running on Intel 80321 processor. I have to access the 
> > Memory Mapped register located inside the CPU from 
> > the range FFFF F350 to FFFF F6B4. The document says that
> 
> > these address are "Internal Bus Address".
> 
> > Can I can access these address directly or should I
> convert
> > them to something like virtual address to access them ?.
> 
> > If any conversion is required, can you please let me know
> 
> > how to convert the address.
> 
> > Thanks for the help in advance.
> 
> Those memory mapped registers may be accessed using the
> documented addresses directly.
> 
> --Mark
> 


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