[PATCH v3 0/2] Add MIPS P8700 compatibles for ACLINT MTIMER

[Anup Patel]

On Fri, Nov 7, 2025 at 4:17 PM Benoît Monin <benoit.monin at bootlin.com> wrote:
>
> The ACLINT found in the MIPS P8700 is compliant with the now archived
> RISC-V Advanced Core Local Interruptor Specification. There is one
> ACLINT controller per cluster, as part of what MIPS calls the coherence
> manager.
>
> For the MTIMER, there is no dedicated mtime register to act a reference in
> a multi-cluster configuration, and there is no MTIMER without associated
> HARTs.
>
> To handle that, a new device tree property named "riscv,reference-mtimer"
> is added to indicate which MTIMER is used as the reference.
>
> Signed-off-by: Benoît Monin <benoit.monin at bootlin.com>
> ---
> Changes in v3:
> - Drop mswi patch: already merged.
> - Switch the DT property for the MTIMER reference to a generic one.
> - Link to v2: https://lore.kernel.org/r/20251027-p8700-aclint-v2-0-f10cbfb66e92@bootlin.com
>
> Changes in v2:
> - Select the reference MTIMER based on a DT property, not the first one
>   found.
> - Link to v1: https://lore.kernel.org/r/20251009-p8700-aclint-v1-0-18322c64f968@bootlin.com
>
> ---
> Benoît Monin (2):
>       lib: utils/timer: mtimer: Select the reference mtimer from a DT property
>       lib: utils/timer: mtimer: add MIPS P8700 compatible
>
>  lib/utils/timer/fdt_timer_mtimer.c | 17 +++++++++++------
>  1 file changed, 11 insertions(+), 6 deletions(-)
> ---
> base-commit: 38a6106b1099646f25657bba53cefb80886721a7
> change-id: 20251008-p8700-aclint-ef8868889745
>
> Best regards,
> --
> Benoît Monin, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
>
>
> --
> opensbi mailing list
> opensbi at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/opensbi

LGTM.

Reviewed-by: Anup Patel <anup at brainfault.org>

Applied this series to the riscv/opensbi repo.

Thanks,
Anup