On Sun, Nov 26, 2023 at 10:17 AM Sven Peter <sven@svenpeter.dev> wrote:
>
> Hi,
>
> The M1 SoCs have a second slightly different variant of the regular
> DART used for the USB4 PCIe ports. It supports 64 instead of 16 streams
> which requires a minor change to the MMIO layout.
> There seems to be no way to tell them apart from the regular DARTs by
> just looking at the DART_PARAMs register so we have to add a new
> compatible for those.
>
> Changes since v3:
> none
>
> Changes since v2:
> - drop the manual bypass disable
> - added Rob's tag
>
> Changes since v1:
> - apple,t8103-usb4-dart instead of apple,t8103-dart-usb4 as the
> compatible
> - collected Hector's tags
>
> Best,
>
> Sven
>
> Sven Peter (3):
> dt-bindings: iommu: dart: Add t8103-usb4-dart compatible
> iommu: dart: Write to all DART_T8020_STREAM_SELECT
> iommu: dart: Add support for t8103 USB4 DART
>
> .../devicetree/bindings/iommu/apple,dart.yaml | 1 +
> drivers/iommu/apple-dart.c | 35 +++++++++++++++++--
> 2 files changed, 34 insertions(+), 2 deletions(-)
>
> --
> 2.34.1
>
>
Series LGTM.
Reviewed-by: Neal Gompa <neal@gompa.dev>
--
真実はいつも一つ！/ Always, there's only one truth!