[RFC PATCH 1/1] dt-bindings: iommu: riscv: Add bindings for Tenstorrent RISC-V IOMMU

[Joel Stanley]

On Tue, 10 Mar 2026 at 11:09, Nicholas Piggin <npiggin at gmail.com> wrote:
>
> Extend the binding to cover details specific to the Tenstorrent RISC-V
> IOMMU. In particular, a second register range is added which contains
> M-privileged registers, e.g., PMAs and PMPs.
>
> The RISC-V spec S-privileged registers remain in the first register
> range and are compatible with "riscv,iommu" so the Linux driver does not
> notice any difference, but the binding will be used by OpenSBI and
> potentially other M-mode software.
>
> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>

Reviewed-by: Joel Stanley <joel at jms.id.au>

Drew, will you take this through the the tt soc tree?