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Re: Re: [openrisc] Custom Registers
OR1200 custom units should go into SPR address space and custom peripherals (as part of the system-on-chip) should have WISHBONE bus and go into memory address space (accessed by load/store insns).
regards,
Damjan
On 24 Apr 2002 12:41 CET you wrote:
> > Marko Mlinar wrote:
> > | no, memory and sprs uses different address space.
> > aww shucks.. I was hoping that the custom SPR could be mapped to the
> > data mem.. then, I'll put all the other core's configuration registers
> > there..
> >
> > looks like it's back to MSB decoding.. (:
> Well you have two possibilities to add a device: write your own
> wishbone compatible device or attach the device to OR1200.
> This depends highly on what device should be capable of.
> I do not see any limitations with our solution.
>
> Marko
>
>
>
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