Commit graph

3 commits

Author SHA1 Message Date
Janne Grunau
6e0793f485 iommu: Add M2 support to Apple DART driver
"apple,t8112-dart" uses an incompatible register interface but still
offers the same functionality. This DART is found on the M2 and M1
Pro/Max/Ultra SoCs.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
2022-07-25 09:38:47 -04:00
Janne Grunau
d15e1926ff iommu: Add M1 Pro/Max support to Apple DART driver
For the purpose of this driver (activating bypass mode) t6000-dart
and t8103-dart are fully compatible.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
2022-02-21 08:35:40 -05:00
Mark Kettenis
785cfde5b3 iommu: Add Apple DART driver
The DART is an IOMMU that is used on Apple's M1 SoC.  This driver
configures the DART such that it operates in bypass mode which is
enough to support DMA for the USB3 ports integrated on the SoC.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-31 08:46:44 -04:00