AnsweredAssumed Answered

The curious things about I.MX28 bootloader

Question asked by Eunseok Jung on Sep 9, 2015
Latest reply on Sep 9, 2015 by igorpadykov

Hi, all.

I have some curious things about I.MX Bootloader.

I know that I.MX28 have secondary bootloader area which is used when primary boot fail.

My bootloader area is saved at 0x10000. And secondary is in 0x20000.

I did some experiment. I removed flash from 0x10000 to 0x30000.(I think here is bootloader area.)

After remove flash, its bootloader working properly. It is very strange. I think, it should fail. Because i remove bootloader area. But, it working well.

So my hypothesis is that I.MX28 have bootloader backup area. But i'm not sure. Do you have idea of this?

 

When i removed flash area form 0x00000 to 0x30000, the bootloader is not working.

 

Anyone who knows about this, please let me know.

 

Thank you.

Eunseok.

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