[PATCH 0/5] iommu: sun50i: Add Allwinner H616 support

[Andre Przywara <andre.przywara@arm.com>]

The Allwinner H616 contains an IOMMU almost compatible to the one used
in the H6. The differing default reset value of the bypass register
makes the two technically incompatible, so use a new DT compatible
string to be on the safe side.
The required driver changes can be applied to both variants, so the driver
is ignorant of the differences between the two for now.

Change the driver to cope with the new variant in patch 1/5 and 2/5,
then apply the required devicetree and binding changes in the remaining
patches.

I could just verify that the driver probes and allocates the page table
from below 4 GB, but haven't tested the actual IOMMU operation, with a
device. I would be grateful if someone could test this in full swing.

Cheers,
Andre.

Andre Przywara (4):
  iommu: sun50i: allocate page tables from below 4 GiB
  dt-bindings: iommu: add new compatible strings
  iommu: sun50i: Add H616 compatible string
  arm64: dts: allwinner: h616: add IOMMU node

Jernej Skrabec (1):
  iommu: sun50i: clear bypass register

 .../bindings/iommu/allwinner,sun50i-h6-iommu.yaml        | 7 ++++++-
 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi           | 9 +++++++++
 drivers/iommu/sun50i-iommu.c                             | 7 +++++--
 3 files changed, 20 insertions(+), 3 deletions(-)

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2.35.8