how to use usdhc3 for Android auto_Ga_2.1.0 xen version

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how to use usdhc3 for Android auto_Ga_2.1.0 xen version

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wuguangnan110
Contributor I

I want to use usdhc3 for wifi sdio,i try to change dom0 dts to passthrough  usdhc3 for domU(android),as follow :

arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-domu.dts:

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and the log is :

libxl: error: libxl_create.c:1345:domcreate_launch_dm: Domain 3:failed give domain access to iomem range 5b220-5b220: Operation not permitted

can you help me please!

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pengfan
NXP Employee
NXP Employee

Please add a node including sdhc3 lpcg iomem, and mark passthrough, no need smmu entry for it. Check how lpuart passthrough in imx8qm-mek-dom0.dts.

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jinchen1227
Contributor II

Same question, any one help?

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diegoadrian
NXP Employee
NXP Employee

Hello,

Unfortunately, the i.MX8QM is still in preproduction and we do not have any preliminary documentation about the product. I recommend you to go with your DFAE. He could help you with this problem.

I apologize for the inconveniences this could give you.

Best regards,

Diego.

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