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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
|
--------------------------------------
| |
MM_IOMMU APU_IOMMU
| |
SMI_COMMOM----------- APU_BUS
| | |
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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||
|---|---|---|
| .. | ||
| arm | ||
| bus | ||
| clk | ||
| clock | ||
| display | ||
| dma | ||
| firmware/imx | ||
| gce | ||
| gpio | ||
| i2c | ||
| iio | ||
| input | ||
| interconnect | ||
| interrupt-controller | ||
| leds | ||
| mailbox | ||
| media | ||
| memory | ||
| mfd | ||
| mips | ||
| mux | ||
| net | ||
| phy | ||
| pinctrl | ||
| pmu | ||
| power | ||
| pwm | ||
| regulator | ||
| reset | ||
| reset-controller | ||
| soc | ||
| sound | ||
| spmi | ||
| thermal | ||
| usb | ||