How to implement device tree file to support SD/MMC (SDIO interface)on Imx8mm

[billwu]

Dear Sir,

We want to bring up Wifi module by using SD/MMC (SDIO interface) and the name of interface is mmc1.

I have tried to implement "imx8mm-evk.dts" but it seem is not work.

Attached file is modified file.(imx8mm-evk.dts).

Is my understanding correct for imx8mm-evk.dts?

Would you mind checking it,thank you.

Below is our target setting. 

B.R.

Bill

[billwu]

Dear Joanxie,

Thank for your information.

I have a question about the uSDHC1.  Is the uSDHC1 the same Micro-SD(SD2)(ref:below picture).

Sorry for the confusion, I said mmc1 means to Micro-SD.

B.R.

Bill

[joanxie]

pls see his :

SDHC2 is for MicroSD , SDHC1 is for IWFI/BT

[billwu]

Dear Joanxie

If I want to use SDIO interface of SDHC2, could I reference "https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/Enabling-uSDHC1-of-i-MX8MM-Based-On-L5-4..."?

B.R.

Bill

[joanxie]

yes, this document is for uSDHC1, if you need to use uSDHC2, you can refer to the document and change the dts according to your own design

[joanxie · Accepted solution]

pls refer to the document as below:

"https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/Enabling-uSDHC1-of-i-MX8MM-Based-On-L5-4..."