How the iMX8 boots from emmc boot partition when fastboot is not enabled in fuse 19 ?

[nkhan2]

Hi,

We are booting from eMMC(8GB) on the iMX8DX platform 

I read fuse 19 of iMX8Dx and found that fast boot is not enabled, however, the system could boot from BOOT partition of EMMC whereas ECSD(179) is enabled with the boot partition.

Is there any other fuse/configuration from SOC that could lead to this scenario of booting from the eMMC boot partition even when SOC FUSE is not configured for fastboot

Fuse Output:

Regards,

Nisar

[Sanket_Parekh]

Hi @nkhan2 

Have you tried the suggestion given by @martin_durak ?

Thanks & Regards

Sanket Parekh

[martin_durak]

Hi @nkhan2,

one can try: mmc bootpart enable <boot_partition> <send_ack> <device>

Enable the boot partition for the <device>.

To receive acknowledgment of boot from the card set <send_ack>

to 1, else set it to 0.

In this mode the eMMC device sends data from boot partition like a file but no fseek. So its a sequential access.

See more there:

https://manpages.debian.org/unstable/mmc-utils/mmc.1.en.html

Martin