How to make uboot backup

user4205571

hello：

Use their own custom version card dm8168

Boot board, when MLO, uboot.bin damaged, how to boot another area MLO, uboot.bin load kernel. How to make such a backup mechanism?

0 Pavel Botev over 8 years ago

Hi user4205571,

Seems like DM816x ROM Code support up to 3 backup MLO images. See DM816x TRM, section 25.7 Memory Booting

But backup feature (for MLO and u-boot) is not implemented in the DM816x u-boot code base. You might explore the AM335x u-boot code base for how to implement these backup feature.

processors.wiki.ti.com/.../TI81XX_PSP_UBOOT_User_Guide

processors.wiki.ti.com/.../AM335x_U-Boot_User's_Guide

See also below pointers:

e2e.ti.com/.../2017553
e2e.ti.com/.../375500
e2e.ti.com/.../276907

e2e.ti.com/.../403130
e2e.ti.com/.../334778

Regards,
Pavel

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