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Based on the context provided, it seems that OP-TEE is not directly supported for the Colibri iMX7D eMMC 1GB V1.1 SoM using the meta-toradex layer on Yocto Linux 4.0 Kirkstone (BSP 6.7). The bitbake tool indicates support is only available for the Verdin iMX8M.
To port OP-TEE manually, you would need to follow the NXP Porting Guide, which involves setting parameters like DCD and DRAM0_BASE. Unfortunately, the context does not provide specific details on where to find these parameters for the Colibri iMX7D. Typically, such information might be found in the SoM’s reference manual or technical documentation, which might not be included in the datasheet.
If the datasheet does not contain the necessary information, you might need to consult additional technical resources or contact Toradex technical support for guidance on obtaining the required details for porting OP-TEE to the Colibri iMX7D.
As for an easier way, the context does not mention any alternative methods for getting OP-TEE running on the Colibri iMX7D. Therefore, manual porting seems to be the approach you would need to take unless further support or updates are provided by Toradex or the community.
Please, also check if these links can help you solve your problem:
Error building reference image (device-tree) with yocto-openembedded.