Interfacing IMX6 with emmc module

[saivenkatesh]

I am currently working on a prototype involving the interfacing of an external eMMC module with the i.MX6 processor on a Toradex Colibri board. I am experiencing issues with both hardware and software aspects of this integration and require assistance to ensure proper functionality.
Issues Encountered

1. eMMC Detection: The external eMMC module is detected by the system but is not mounting or partitioning correctly. We are also seeing I/O errors after initial detection.
2. Interface Configuration: We are using the SD interface to connect the eMMC. However, we are unsure if there are any additional configuration requirements. For more information please go through the images.

[ToradexAI]

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Based on the context provided, here are some steps you can take to address the issues you’re encountering with interfacing the eMMC module with the i.MX6 processor on a Toradex Colibri board:

1. eMMC Detection and Mounting Issues:

   • Ensure that the SD interface settings are correctly configured in the device tree. This includes specifying the correct bus width and any other relevant parameters for eMMC operation.
   • Verify that the appropriate drivers for the eMMC module are loaded. This might involve checking the kernel configuration to ensure that eMMC support is enabled.
   • Investigate the I/O errors by checking the system logs for any error messages that could provide more insight into the issue. This might help identify if the problem is related to the driver or the hardware.

2. Interface Configuration:

   • Double-check the configuration settings for the SD interface to ensure they are suitable for eMMC operation. This might include settings related to clock speed, voltage levels, and bus width.
   • Review the documentation for both the i.MX6 processor and the eMMC module to identify any specific configuration requirements or compatibility issues.

3. General Recommendations:

   • Verify that the eMMC module is receiving adequate power and that all connections are secure. Loose connections or insufficient power can lead to detection problems and I/O errors.
   • Consider testing with a different eMMC module or SD interface to rule out hardware faults.

By following these recommendations, you should be able to address the issues related to eMMC detection and interface configuration. If problems persist, further investigation into the specific error messages and logs may be necessary to pinpoint the root cause.

Please, also check if these links can help you solve your problem:

Interfacing Imx6 with emmc

Actually I’m interfacing IMx6 with emmc in toradex colibro evaluation board rev 3.2, when I 'm working with sd card it detects sd card , but when comes to emmc it doesn’t detects emmc card , so how to solve these issues and how to power this emmc module and emmc doesn’t have card detect pin, so how to detect externally connected emmc MTFC8GAMALNA-AAT, so for intialization is there any thing we do by externally and internally.When I run lsblk command it gives internal emmc(processor IMX6) d…

"end_request: I/O Error" when formatting emmc partition

Every time a partition on the emmc is formatted using mkfs.ext3 the kernel prints at least 2 errors of the form “end_request: I/O Error, dev mmcblk0, sector #”. I have traced the error to the mmc_erase() function in the kernel returning EOPNOTSUPP. It looks like the erase is possibly not happening but the partition seems to work ok. Can I ignore these errors?

https://community.nxp.com/t5/i-MX-Processors/i-MX6-and-boot-from-eMMC-not-working-with-MMC-eMMC-config/m-p/247581.

[sahil.tx]

Hi @saivenkatesh ,

Please provide the connection details and any device tree changes done.