11 Oct
2021
11 Oct
'21
7 p.m.
On Sun, 3 Oct 2021 at 12:34, Mark Kettenis kettenis@openbsd.org wrote:
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
arch/arm/Kconfig | 1 + drivers/iommu/Kconfig | 10 +++++++ drivers/iommu/Makefile | 1 + drivers/iommu/apple_dart.c | 59 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 71 insertions(+) create mode 100644 drivers/iommu/apple_dart.c
Reviewed-by: Simon Glass sjg@chromium.org