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iMX6Solo :  eMMC boot sequence difference about BOOT_CFG2[7:5]

Question asked by koichi sakagami on Jan 25, 2016
Latest reply on Jan 27, 2016 by Artur Petukhov

Dear community,
    We are checking a booting from the eMMC (Ver5.0) device.

 

When Bus configuration is set to 8bit (BOOT_CFG2[7:5]=010) , system is able to boot.

However,
Bus configuration is set to 8bit DDR (BOOT_CFG2[7:5]=110) ,system is not able to boot.

 

We hope to get the information about difference between them ( boot_cfg2 settings).

 

[Question]

    Could you tell us  the starting sequence difference ?

 

For example,
   Is it different in issuing command type ?
   Is it different in issuing command timing ?
... and so on.

 

Best Regards,
    Koichi Sakagami

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