platform: add CVA6 platform and support for PMU.

[Manuel Hernández Méndez]

Hi,

I sent a patch to add PMU to Openpiton platform
(https://lists.infradead.org/pipermail/opensbi/2025-July/008681.html).
This should work for Ariane and CVA6 as well. Following Samuel's
recommendation, I am working on porting the Openpiton platform from
fpga to generic. My plan is also to port the Ariane core later.

Regards,
Manuel.


On Fri, Aug 8, 2025 at 4:56 PM LE RHUN Jimmy
<jimmy.lerhun at thalesgroup.com> wrote:
>
> Classified as: {OPEN}
>
> Vendredi 8 août 2025 15:42, Jessica Clarke <jrtc27 at jrtc27.com> a écrit :
> >On 8 Aug 2025, at 14:35, LE RHUN Jimmy <jimmy.lerhun at thalesgroup.com> wrote:
> >>
> >> Add a new platform called CVA6 (https://github.com/openhwgroup/cva6).
> >> Add support for Performance Monitoring Unit for this platform.
> >> This development starts from tag v1.5.
> >
> >Does generic not work for it? My understanding was it did, and if support for anything is missing in generic it should be added to generic.
> >
> >Jessica
>
> Thanks for your quick answer. I'm using the standard Yocto distribution for this core :
> https://github.com/openhwgroup/meta-cva6-yocto and it has a specific configuration for OpenSBI that was not submitted here and that lacked PMU support.
> I had to define hardware-specific information about performance counters.
> Actually CVA6 is an evolution of Ariane (that exists in platform/fpga/ariane).
>
> Kind regards,
> Jimmy
>
> >> Signed-off-by: Jimmy Le Rhun <jimmy.lerhun at thalesgroup.com>
> >>
> >> <OpenSBI_1.5_add_CVA6_PMU.patch>--
> >> opensbi mailing list
> >> opensbi at lists.infradead.org
> >> http://lists.infradead.org/mailman/listinfo/opensbi
>
>
> {OPEN}
>
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