Commit d5cda14
dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU
Add descriptions for mt8188 IOMMU which also use ARM Short-Descriptor
translation table format.
In mt8188, there are two smi-common HW and IOMMU, one is for vdo(video
output), the other is for vpp(video processing pipe). They connects
with different smi-larbs, then some setting(larbid_remap) is different.
Differentiate them with the compatible string.
Something like this:
IOMMU(VDO) IOMMU(VPP)
| |
SMI_COMMON_VDO SMI_COMMON_VPP
--------------- ----------------
| | ... | | ...
larb0 larb2 ... larb1 larb3 ...
We also have an IOMMU that is for infra master like PCIe.
And infra master don't have the larb and ports.
Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230602090227.7264-2-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>1 parent 06c2afb commit d5cda14
2 files changed
Lines changed: 500 additions & 1 deletion
File tree
- Documentation/devicetree/bindings/iommu
- include/dt-bindings/memory
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