349b00c9c0
This patch adds description for MT6779 IOMMU.
MT6779 has two iommus, they are mm_iommu and apu_iommu which
both use ARM Short-Descriptor translation format.
In addition, mm_iommu and apu_iommu are two independent HW instance
, we need to set them separately.
The MT6779 IOMMU hardware diagram is as below, it is only a brief
diagram about iommu, it don't focus on the part of smi_larb, so
I don't describe the smi_larb detailedly.
EMI
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--------------------------------------
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MM_IOMMU APU_IOMMU
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SMI_COMMOM----------- APU_BUS
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SMI_LARB(0~11) | |
| | |
| | --------------
| | | | |
Multimedia engine CCU VPU MDLA EMDA
All the connections are hardware fixed, software can not adjust it.
Signed-off-by: Chao Hao <chao.hao@mediatek.com>
Reviewed-by: Rob Herring <robh+dt@kernel.org>
Link: https://lore.kernel.org/r/20200703044127.27438-2-chao.hao@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kunit | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| vdso | ||
| video | ||
| xen | ||